Predominantly antibody deficiency: Difference between revisions

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Latest revision as of 17:22, 14 December 2018

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Preeti Singh, M.B.B.S.[2], Ali Akram, M.B.B.S.[3], Anmol Pitliya, M.B.B.S. M.D.[4]

Overview

Predominantly antibody deficiencies (PAD) are the most common type of primary immunodeficiency diseases (PID). PAD is a large group of diseases which may vary widely from having a complete absence of B cells and decrease in all immunoglobulins to having deficiency in specific immunoglobulins. Depending on the phenotype, agammaglobulinemia or CVID, patients can present either in infancy or adulthood.The main clinical characteristic of patients with PAD is recurrent bacterial infections, low levels of immunoglobulin (ranging from agammaglobulinemia to hypogammaglobulinemia), and impaired response to vaccines and antigens. Treatment is by intravenous or subcutaneous immunoglobulins and treatment of infections by antibiotics.

Classification

Predominantly antibody deficiencies

Hypogammaglobulinemia

Other antibody deficiencies

Hypogammaglobulinemia

Predominantly antibody deficiencies
(A): Hypogammaglobulinemia

Serum immunoglobulin assays : IgG, IgA, IgM, IgE

IgG, IgA, and/or IgM ↓↓
→ B Lymphocyte (CD19+) enumeration (CMF)

B absent

B >1%

X-Linked Agammaglobulinemia

Common Variable Immunodeficiency Phenotype

CD19 deficiency

µ heavy chain Def

CVID with no gene defect specified

CD20 deficiency

Igα def

PIK3CD mutation(GOF),PIK3R1 deficiency(LOF)

CD21 deficiency

Igβ def

PTEN deficiency(LOF)

TRNT1 deficiency

BLNK def

CD81 deficiency

NFKB1 deficiency

λ5 def

TACI deficiency

NFKB2 deficiency

PI3KR1 def

BAFF receptor deficiency

IKAROS deficiency

E47 transcription factor def

TWEAK deficiency

ATP6AP1 deficiency

Mannosyl-oligosaccharide glucosidase deficiency (MOGS)

TTC37 deficiency

IRF2BP2 deficiency

Other Antibody deficiencies

Predominantly antibody deficiencies
(B): Other antibody deficiencies

Serum Immunolobulin Assays: IgG, IgA, IgM, IgE

Severe Reduction in Serum IgG and IgA with NI/elevated IgM and Normal Numbers of B cells: Hyper IgM Syndromes

Isotype, Light Chain, or Functional Deficiencies with Generally NI Numbers of B cells

High B cell numbers due to constitutive NF-kB activation

AID deficiency

Selective IgA deficiency

CARD11 Gain of Function

UNG deficiency

Transient hypogammaglobuliemia of infancy

INO80

IgG subclass deficiency with IgA deficiency

MSH6

Isolated IgG subclass deficiency

Specific antibody deficiency with normal Ig levels and normal B cells

Ig heavy chain muations and deletions

Kappa chain deficiency

Selective IgM deficiency

X-linked Agammaglobulinemia

It is an X linked disease, first described by Bruton in 1952.
It is caused by the mutation of BTK gene (present on the long arm of X chromosome) which encodes for the protein Bruton tyrosine kinase,which is associated with the maturation and differentiation of the pre B cell.^[1]
The disruption of this protein can lead to significant decrease in all antibody isotypes, due to failure of Ig heavy chain rearrangement.^[2]
Affected individuals generally present between 3 months to 3 years of age, with almost 90% becoming symptomatic by 5 years of age.^[3]
Presence of maternal immunoglobulins provide transient protection, concealing symptoms of the disease and preventing early detection.
Physical examination typically shows absence of lymph nodes.
Patients are susceptible to recurrent infections with encapsulated organisms and enteroviruses, primarily effecting respiratory and gastrointestinal tracts.
Laboratory findings show defect in humoral immunity with absence or negligible amount of IgM, IgG, and IgA, as well as <2% of B cells lymphocytes. Neutropenia can also be seen.^[4]^[1]^[5]
Treatment is mainly via hematopoietic stem cell therapy and through replacement of immunoglobulins either by intravenous or subcutaneous routes. Recurrent infections are prevented and treated by antibiotics.^[6]

For more information on X-linked agammaglobulinemia, click here.

µ Heavy Chain Deficiency

µ heavy chain deficiency has Autosomal recessive (AR) transmission.
It is caused by mutation of µ heavy chain (IGHM) on chromosome 14.^[7]
This mutation is phenotypically similar to X-linked agammaglobulinemia, but unlike X-linked agammaglobulinemia can also be seen in females, yet there has been a study that provides data showing clinically significant difference between the two.^[8]
Treatment is mainly via replacement of immunoglobulins by intravenous or subcutaneous routes, hematopoietic stem cell therapy and use of prophylactic and curative antibiotics.^[6]

Igα Deficiency

Igα Deficiency has autosomal recessive (AR) transmission.
Mutation of Igα(CD79α) a component of B cell receptor (BCR). Mutations in pre-BCR complex many times lead to truncation of B cell development.
It causes a B cell defect which leads to a clinical picture similar to X-linked agammaglobulinemia.
Patients have increased susceptibility to bacterial infections and otitis media.
Diagnosis is mainly by polymerase chain reaction (PCR) or single strand conformational polymosrphism analysis(SSCA).^[9]
Treatment is mainly through replacement of immunoglobulins by intravenous or subcutaneous routes, hematopoietic stem cell therapy and use of prophylactic and curative antibiotics.^[10].

Igβ Deficiency

Igβ deficiency has autosomal recessive (AR) transmission.
Caused by mutation in the CD79B gene on chromosome 17.
Igβ is a signal transduction molecule similar to Igα and is essential for B cell receptor(BCR) expression.
Patients generally present with reduced immunoglobulins which leads to frequent bacterial infections of upper and lower respiratory tract similar to other agammaglobulinemia like X-linked agammaglobulinemia.^[11]^[12]
Treatment is mainly via replacement of immunoglobulins by intravenous or subcutaneous route, hematopoietic stem cell therapy and use of prophylactic and curative antibiotics.^[12]

BLNK Deficiency

BLNK deficiency has autosomal recessive (AR) transmission.
BLNK gene on chromosome 10 encodes for a scaffold molecule B cell linker protein (BLNK, SLC-65) and is crucial for the development of pre B cell.
Patients generally present with recurrent bacterial infections, otitis media and upper and lower respiratory tract infections similar to X-linked agammaglobulinemia.^[13]
Treatment is mainly via replacement of immunoglobulins by intravenous or subcutaneous routes, hematopoietic stem cell therapy and use of prophylactic and curative antibiotics.^[10]

λ5 Deficiency

λ5 deficiency has autosomal recessive (AR) transmission..
It is caused by mutation of λ5 (IGLL1), component of B cell receptor, on chromosome 22.
Leads to clinical features similar to X-linked agammaglobulinemia.^[14]
Treatment is mainly through replacement of immunoglobulins by intravenous or subcutaneous routes, hematopoietic stem cell therapy and use of prophylactic and curative antibiotics.^[10]

PI3KR1 Deficiency

PIK3R1 gene encodes for the p85α subunit of class IA phosphoinositide 3-kinases (PI3Ks).^[15]
Patients present with history of recurrent bacterial infections and positive family history, similar to clinical features seen in X-linked agammaglobulinemia.^[16]
Treatment is mainly through replacement of immunoglobulins by intravenous or subcutaneous routes, hematopoietic stem cell therapy and use of prophylactic and curative antibiotics.^[10]

E47 transcription factor Deficiency

Mutation of E47 transcription factor.
This mutation leads to improper differentiation of B cell from lymphoid precursors.^[17]
Patients present with few B cells characterized increased expression of CD19, but without B cell receptor (BCR).^[18]
Treatment is mainly through replacement of immunoglobulins by intravenous or subcutaneous routes, hematopoietic stem cell therapy and use of prophylactic and curative antibiotics.^[10]

CVID With No Gene Specified

Common variable immune deficiency (CVID) is the most common primary immune deficiency presenting in adult patients.
Patients show symptoms of disease later in life and the cause is mainly polygenic.^[19]
CVID is a diagnosis of exclusion due to its varied etiology.
The ESID/PAGID criteria is for diagnosis is:

Hypogammaglobulinaemia with IgG levels two standard deviations below the mean.
Impaired vaccine responses or absent isohemagglutinins.
Exclusion of other causes of hypogammaglobulinaemia.

Patients are susceptible to recurrent infections, autoimmunity and malignancy.
Treatment is by intravenous or subcutaneous replacement of immunoglobulins.^[20]

PIK3CD mutation,PIK3R1 deficiency

Also known as activated phosphoinositide 3-kinase δ syndrome (APDS).
Autosomal dominant gain of function (GOF) mutation of PIK3CD gene, which encodes for P110δ subunit of phosphoinositide 3-kinase (PI3K) and loss of function (LOF) mutation of PIK3R1 gene, which encodes the p85α subunit of PI3K.
Mutations in PIK3CD gene leads to clinical features similar to mutation in PIK3R1 gene.^[21]
Patients with mutations of gene for PIK3R1 show characteristics similar to that of patients carrying gain-of-function mutations of PIK3CD gene.
Mutations lead to hyperactive PI3K/AKT/mTOR signaling.^[15]^[22]
Disease is characterized by low numbers of naive T cells, but a larger number of senescent effector T cells.
Patients present with upper and lower respiratory tract infections, lymphadenopathy, nodular lymphoid hyperplasia, early-onset autoimmunity, malignancies and recurrent viral infections with cytomegalovirus (CMV) and Epstein Barr virus (EBV).^[23]
Treatment is via sirolimus and selective PI3Kδ inhibitors, intavenous and subcutaneous immunoglobulin replacement, prophylactic antibiotic, and hematopoietic stem cell transplant.^[24]

PTEN deficiency

Phosphatase and tensin homolog (PTEN) is an inhibitory component of phosphoinositide 3-kinase (PI3K) signalling network.^[25]
Loss of function mutation of this gene leads to up regulation of PI3K/AKT/mTOR pathway leading to APDS like immunodeficiency.
Immunodeficiency leads to recurrent infections, Cowden disease and malignancies.
Treatment is by intravenous and subcutaneous immunoglobulin and antibiotics.^[26]

CD 81 Deficiency

CD81 is a B cell surface protein (part of CD19 complex) which helps in antigen recognition.
Deficiency is characterized by decreased in number of B cell, hypogammaglobulinemia , impaired antibody responses, and absence of CD19 expression on B cells.
Patients present with recurrent infections of upper and lower respiratory tract.
Treatment is mainly through replacement of immunoglobulins by intravenous or subcutaneous routes, hematopoietic stem cell therapy and use of prophylactic and curative antibiotics.^[27]

TACI Deficiency

Transmembrane activator and calcium-modulator and cyclophilin ligand interactor (TACI) is a part of tumor necrosis factor family and involved in B cell class switching.
Missense mutation of one allele of TNFRSF13B gene encoding for TACI leads to CVID like immunodeficiency.^[28]
Patients present with increased susceptibility to encapsulated organisms, autoimmunity, and hypogammaglobulinemia.^[29]^[30]
Treatment is by intravenous or subcutaneous replacement of immunoglobulins.^[20]

BAFF Receptor Deficiency

Mutation of B-cell activating factor receptor (BAFF-R) prevents maturation of transitional B cell, leading to a CVID type adult onset immunodeficiency.
Incomplete maturation leads to hypogammaglobulinemia, but can in a few cases not manifest to clinical disease, with recurrent infections.
Patients show varying degrees immunodeficiency but normal IgA levels.^[31]^[32]
Treatment is by intravenous or subcutaneous replacement of immunoglobulins and by curative antibiotics.^[20]

TWEAK Deficiency

CVID like phenotype caused by, an autosomal dominant transmitted, deficiency in TNF-like weak inducer of apoptosis (TWEAK).
Mutation in TWEAK is associated with regulation of BAFF associated B cell development leading to impaired B cell survival and isotype class switching.
Disease is characterized by recurrent infection and impaired response to vaccination.^[33]
Treatment is by intravenous or subcutaneous replacement of immunoglobulins and by curative antibiotics.^[20]

MOGS Deficiency

Mannosyl-oligosaccharide glucosidase (MOGS) deficiency causes a congenital disorder of glycosylation type IIb (CDG-IIb), also known as MOGS-CDG.
MOGS deficiency leads to improper processing of immunoglobulins, which shortens their half-life in circulation.
Few studies show that unlike most antibody deficiencies MOGS deficiency does not lead to clinical features of hypogammaglobulinemia like recurrent infections.
This is because cells with MOGS deficiency have altered glycosylation which prevents productive infection of multiple enveloped viruses.^[34]^[35]

TTC37 Deficiency

Tetratricopeptide Repeat Domain 37 (TTC37) deficency is an autosomal recessive disease causing syndromic diarrhea/tricho-hepato-enteric syndrome (SD/THE) which has a similar immune phenotype to CVID.
TTC37 is involved in aberrant mRNAs decay.
Patient presents in infancy with low IgG and poor antigen-stimulation to vaccine.
Clinical features show infantile onset refractory diarrhea, hair and facial anomalies.^[36]^[37]
Treatment is by intravenous or subcutaneous replacement of immunoglobulins and by curative antibiotics.^[20]

IRF2BP2 Deficiency

Interferon Regulatory Factor 2 Binding Protein 2 (IRF2BP2) mutation leads to impaired differentiation of B cells.
Few studies show that most patients with this mutation are diagnosed with CVID in childhood.
Disease is characterized by recurrent infections,low levels of IgG, IgA and IgM , and decreased number of memory B cells. There is no T cell dysfunction.^[38]
Treatment is by intravenous or subcutaneous replacement of immunoglobulins and by curative antibiotics.^[20]

CD19 Deficiency

CD19 surface expression can be absent in cases of homozygous CD19 deficiency or CD81 deficiency.
Deficiency leads to impaired formation of CD19 complex and B cell development and antibody response.^[39]
Patients show increased susceptibility to infection, hypogammaglobulinemia and impaired response to vaccines.^[40]
Treatment is by intravenous or subcutaneous replacement of immunoglobulins and by curative antibiotics.^[20]

CD20 Deficiency

CD20 is essential for T cell independent antibody response.
Deficiency of CD20 therefore leads to reduced ability to mount an antibody response.
Patients have increased risk of infections by encapsulated bacteria, hypogammaglobulinemia, due to decrease somatic hypermutation, and normal B cell numbers; but a decrease in number of circulating memory B cells.^[41]
Treatment is by intravenous or subcutaneous replacement of immunoglobulins and by curative antibiotics.^[20]

CD21 Deficiency

CD21 is a receptor for complement C3d which helps in antigen specific response.
Patients present with increased susceptibility to infections, decreased immunoglobulin class switching, chronic diarrhea and hypogammaglobulinemia.
Unlike patients with CD19 and CD20 deficiency patients with CD 21 have less sever clinical phenotype, and are able to mount specific antibody response to vaccines but not very well with polysaccharide vaccines.^[42]
Treatment is by curative antibiotics to treat recurrent infections.^[20]

TRNT1 Deficiency

TRNT1 gene encodes for CCA-adding transfer RNA nucleotidyl transferase (TRNT1) enzyme, an tRNA processing enzyme.
It leads to a childhood syndromic form of congenital sideroblastic anemia (CSA) associated with B-cell immunodeficiency, periodic fevers, and developmental delay (SIFD).
Disease is characterized by childhood developmental delay, neurodegeneration, seizures, sensorineural deafness, and other multi organ anomalies.
Treatment is by intravenous immunoglobulin, transfusion for anemia and by bone marrow transplantation.^[43]^[44]

NFKB1 Deficiency

Nuclear factor κB subunit 1 (NFKB1) plays an important role in B cell differentiation and function.
NFKB1 is essential for immunoglobulin class switching and deficiency can lead to an hyper-IgM like syndrome with lower IgG and IgA production.^[45]
Sporadic or familial loss of function mutations of NFKB1 leads to progressive humoral immunodeficiency, with a highly variable clinical spectrum.
It is considered the most common known monogenic cause of CVID .
Patients present with hypogammaglobulinemia, recurrent upper and lower respiratory tract infections, as well as non-infectious complications like lymphadenopathy, splenomegaly, autoimmunity and rarely malignancy.
Individually usually require lifelong followup.
Patients are treated with replacement immunoglobulins depending on severity of antibody deficiency.^[46]^[47]

NFKB2 Deficiency

Nuclear factor kappa-B subunit 2 (NFKB2) is a part of noncolonical NF-κB pathway and is involved in B cell maturation and antibody development.^[48]
Mutations leading to deficiency cause CVID with early onset central adrenal insufficiency and at times ectodermal dysplasia.
Patients presents with ACTH deficiency, recurrent infections, hypogammaglobulinemia, decreased response to vaccines and autoimmunity effecting the skin, hair, and nails
Treatment is via immunoglobulin replacement therapy and glucocorticoid replacement.^[49]

IKAROS Deficiency

IKAROS gene encodes for a family of hemopoietic-specific zinc finger proteins which are essential for lymphocyte development.^[50]
Individuals show varied severity of clinical disease, despite most patients having low B cell and antibody count.
Deficiency leads to hypogammaglobulinemia, decreased response to vaccines, recurrent bacterial infections and malignancies.
Treatment is via replacement of immunoglobulins and treatment of infections with antibiotics.^[51]

ATP6AP1 Deficiency

ATP6AP1 encodes for Ac45 of human V-ATPase and is homologus to yeast V-ATPase assembly factor Voa1.
This gene is involved in B cell functioning, antigen recognition and antibody production.^[52]
Deficiency therefore leads to hypogammaglobulinemia and increased susceptibility to infections.
Deficiency leads to pathology in the liver (ranging from cirrhosis to end-stage liver failure), leukopenia , and low levels of copper and ceruloplasmin, and high alkaline phosphatase.
Patients are treated with intravenous immunoglobulins.^[53]

AID Deficiency

Activation-induced cytidine deaminase (AID) is expressed by germinal center B cells and plays a crucial role in B cell terminal differentiation and antibody response (somatic hypermutation and class switching).
Deficiency leads to a form of the hyper-IgM syndrome (HIGM2), which shows autosomal recessive inheritance.
Disease is characterized by loss of immunoglobulin class switching and somatic hypermutation, as well as lymphoid hyperplasia with giant germinal centers and enlarged lymph nodes requiring frequent biopsies.^[54]
Patients typically have normal or increased IgM, but lack IgG and IgA.
Immunodeficiency is complicated by autoimmune disorders, gastric illnesses due to impaired IgA production, and recurrent bacterial infections of the upper respiratory system.
Treatment is via replacement of immunoglobulins, corticosteroids for autoimmunity.^[55]^[56]

UNG deficiency

Uracil-N glycosylase (UNG) removes uracil in DNA plays a role in suppressing GC-to-AT transition mutations.^[57]
UNG removes uracil residues leading to DNA breaks that helps initiate class switching.
UNG deficiency has an autosomal recessive mutation, this leads to an normal or increased serum IgM concentrations with low or absent serum IgG, IgA, and IgE concentrations.
Disease is characterized by increased susceptibility to bacterial infections, lymphoid hyperplasia leading to enlarged lymph nodes.^[58]
Treatment is by immunoglobulin replacement therapy and treatment of infections with antibiotics.^[59]

INO80

INO80 gene encodes for a subunit of the chromatin remodeling complex that is required for immunoglobulin class switching.
Patients have normal or elevated IgM levels, but low switched immunoglobulin isotypes (IgG, IgA, IgE).
Treatment is by replacement of immunoglobulins.^[60]

MSH6

MSH6 plays an important role in induction and repair of DNA double-strand breaks in immunoglobulin isotype switch regions, and is also involved in somatic hypermutation.^[61]

Selective IgA Deficiency (SIgAD)

Selective Immunoglobulin A (IgA) deficiency is the most common primary immunodeficiency and is defined as "serum level of IgA equal or below 7mg/dl in the presence of normal level of other immunoglobulins in individuals older than four years of age and in which other causes of hypogammaglobulinemia have been excluded".^[62]
Several genetic mutations are associated with SIgAD which suggest its polygenic nature but most commonly it is due to a maturation defect in B cells to produce IgA.^[63]
B cells arrested at a stage where they coexpress surface IgM, IgD as well as IgA and donot develop into IgA secreting plasma cells.^[64].
The abnormality appears to involve stem cells as it can be passed on by bone marrow transplantation.^[65]
Majority of the individuals are asymptomatic, but may present with recurrent respiratory and gastrointestinal infections (mucosal infections), autoimmune diseases, atopy and anaphylaxis to IgA containing products.^[62]
IgA levels should be periodically monitored in asymptomatic patients.
There is no specific treatment for selective IgA deficiency. Individuals can be managed based on their symptoms as the presentation varies.
Antibiotics are used to treat bacterial infections in patients with SIgAD.
Prophylactic antibiotics can be used for recurrent infections.
If prophylactic antibiotics fail, a trial of intravenous or subcutaneous immunoglobulin replacement therapy with minimal component of IgA may be tried.
Serum IgA antibodies should always be checked in such patient before administration of IVIG to prevent the risk of anaphylaxis.
If blood transfusion is required, IgA deficient or washed blood components should be used.^[66]^[67]^[62]
Pneumococcal vaccine is recommended in patients with SIgAD to reduce the risk of sino-pulmonary infections.

Kappa chain Deficiency

Approximately 2/3 of the total immunoglobulins light chains, circulating and surface bound, are Kappa light chains.
Deficiency is due to a genetic defect causing homozygous T to G substitution which leads to absent kappa light chain immunoglobulins, but the concentration of immunoglobulin isotypes (IgG, IgA, IgM, IgE and IgD) are normal due to compensation by lambda light chains.
This leads to increased susceptibility bacterial infections of respiratory and gastrointestinal system, autoimmunity and IgA deficiency.
Patients require frequent hospitalization and antibiotic therapy to treat recurrent infections.^[68]^[69]^[70]

Selective IgM Deficiency

Selective IgM deficiency (SIGMD) is defined as "serum IgM levels below two SD of mean with normal serum IgG IgA and T cells".^[71]
Cause of IgM deficiency is due to many genetic defects, but commonly due to 22q11.2 chromosome deletion.
Individuals with SIGMD present with increased susceptibility to infections by microorganisms and protozoa, atopy, impaired antibody response and autoimmune diseases.
Treatment is via immunoglobulin replacement and treatment of infection with antibiotics.^[72]^[73]

CARD11 Gain of Function

Caspase recruitment domain-containing family member 11 (CARD11) is a scaffold protein which plays a crucial role in antigen receptor induced NF-kB activation, B cell differentiation, and functioning of effector T cell.^[74]
CARD11 gain of function mutations are associated with a disorder known as B cell expansion with NF-kB and T cell anergy (BENTA) disease.
Patients present with enlarged lymph nodes and splenomegaly at infancy.
Mutation leads to congenital B cell lymphoproliferation, impaired T cell response to antigen receptor activation, decrease in number of immunoglobulins, recurrent sinopulmonary infections, decreased response to vaccines and malignancies due to overactive NF-kB.^[75]^[76]^[77]
No definitive treatment, patients are monitored and treated for infections and in a few cases via splenectomy to decrease B cell load.^[78]

References

↑ ^1.0 ^1.1 Hernandez-Trujillo VP, Scalchunes C, Cunningham-Rundles C, Ochs HD, Bonilla FA, Paris K, Yel L, Sullivan KE (August 2014). "Autoimmunity and inflammation in X-linked agammaglobulinemia". J. Clin. Immunol. 34 (6): 627–32. doi:10.1007/s10875-014-0056-x. PMC 4157090. PMID 24909997.
↑ Rawlings DJ, Witte ON (April 1994). "Bruton's tyrosine kinase is a key regulator in B-cell development". Immunol. Rev. 138: 105–19. PMID 8070812.
↑ Winkelstein JA, Marino MC, Lederman HM, Jones SM, Sullivan K, Burks AW, Conley ME, Cunningham-Rundles C, Ochs HD (July 2006). "X-linked agammaglobulinemia: report on a United States registry of 201 patients". Medicine (Baltimore). 85 (4): 193–202. doi:10.1097/01.md.0000229482.27398.ad. PMID 16862044.
↑ Fried AJ, Bonilla FA (July 2009). "Pathogenesis, diagnosis, and management of primary antibody deficiencies and infections". Clin. Microbiol. Rev. 22 (3): 396–414. doi:10.1128/CMR.00001-09. PMC 2708392. PMID 19597006.
↑ Berglöf A, Turunen JJ, Gissberg O, Bestas B, Blomberg KE, Smith CI (December 2013). "Agammaglobulinemia: causative mutations and their implications for novel therapies". Expert Rev Clin Immunol. 9 (12): 1205–21. doi:10.1586/1744666X.2013.850030. PMID 24215410.
↑ ^6.0 ^6.1 Cunningham-Rundles C (June 2011). "Key aspects for successful immunoglobulin therapy of primary immunodeficiencies". Clin. Exp. Immunol. 164 Suppl 2: 16–9. doi:10.1111/j.1365-2249.2011.04390.x. PMC 3087906. PMID 21466548.
↑ Yel L, Minegishi Y, Coustan-Smith E, Buckley RH, Trübel H, Pachman LM, Kitchingman GR, Campana D, Rohrer J, Conley ME (November 1996). "Mutations in the mu heavy-chain gene in patients with agammaglobulinemia". N. Engl. J. Med. 335 (20): 1486–93. doi:10.1056/NEJM199611143352003. PMID 8890099.
↑ Abolhassani H, Vitali M, Lougaris V, Giliani S, Parvaneh N, Parvaneh L, Mirminachi B, Cheraghi T, Khazaei H, Mahdaviani SA, Kiaei F, Tavakolinia N, Mohammadi J, Negahdari B, Rezaei N, Hammarstrom L, Plebani A, Aghamohammadi A (2016). "Cohort of Iranian Patients with Congenital Agammaglobulinemia: Mutation Analysis and Novel Gene Defects". Expert Rev Clin Immunol. 12 (4): 479–86. doi:10.1586/1744666X.2016.1139451. PMID 26910880.
↑ Wang Y, Kanegane H, Sanal O, Tezcan I, Ersoy F, Futatani T, Miyawaki T (April 2002). "Novel Igalpha (CD79a) gene mutation in a Turkish patient with B cell-deficient agammaglobulinemia". Am. J. Med. Genet. 108 (4): 333–6. PMID 11920841.
↑ ^10.0 ^10.1 ^10.2 ^10.3 ^10.4 Maarschalk-Ellerbroek LJ, Hoepelman IM, Ellerbroek PM (May 2011). "Immunoglobulin treatment in primary antibody deficiency". Int. J. Antimicrob. Agents. 37 (5): 396–404. doi:10.1016/j.ijantimicag.2010.11.027. PMID 21276714.
↑ Ferrari S, Lougaris V, Caraffi S, Zuntini R, Yang J, Soresina A, Meini A, Cazzola G, Rossi C, Reth M, Plebani A (September 2007). "Mutations of the Igbeta gene cause agammaglobulinemia in man". J. Exp. Med. 204 (9): 2047–51. doi:10.1084/jem.20070264. PMC 2118692. PMID 17709424.
↑ ^12.0 ^12.1 Dobbs AK, Yang T, Farmer D, Kager L, Parolini O, Conley ME (August 2007). "Cutting edge: a hypomorphic mutation in Igbeta (CD79b) in a patient with immunodeficiency and a leaky defect in B cell development". J. Immunol. 179 (4): 2055–9. PMID 17675462.
↑ Minegishi Y, Rohrer J, Coustan-Smith E, Lederman HM, Pappu R, Campana D, Chan AC, Conley ME (December 1999). "An essential role for BLNK in human B cell development". Science. 286 (5446): 1954–7. PMID 10583958.
↑ Minegishi Y, Coustan-Smith E, Wang YH, Cooper MD, Campana D, Conley ME (January 1998). "Mutations in the human lambda5/14.1 gene result in B cell deficiency and agammaglobulinemia". J. Exp. Med. 187 (1): 71–7. PMC 2199185. PMID 9419212.
↑ ^15.0 ^15.1 Deau MC, Heurtier L, Frange P, Suarez F, Bole-Feysot C, Nitschke P, Cavazzana M, Picard C, Durandy A, Fischer A, Kracker S (September 2014). "A human immunodeficiency caused by mutations in the PIK3R1 gene". J. Clin. Invest. 124 (9): 3923–8. doi:10.1172/JCI75746. PMC 4153704. PMID 25133428.
↑ de la Morena M, Haire RN, Ohta Y, Nelson RP, Litman RT, Day NK, Good RA, Litman GW (March 1995). "Predominance of sterile immunoglobulin transcripts in a female phenotypically resembling Bruton's agammaglobulinemia". Eur. J. Immunol. 25 (3): 809–15. doi:10.1002/eji.1830250327. PMID 7705412.
↑ Boisson B, Wang YD, Bosompem A, Ma CS, Lim A, Kochetkov T, Tangye SG, Casanova JL, Conley ME (November 2013). "A recurrent dominant negative E47 mutation causes agammaglobulinemia and BCR(-) B cells". J. Clin. Invest. 123 (11): 4781–5. doi:10.1172/JCI71927. PMC 3809807. PMID 24216514.
↑ Dobbs AK, Bosompem A, Coustan-Smith E, Tyerman G, Saulsbury FT, Conley ME (August 2011). "Agammaglobulinemia associated with BCR⁻ B cells and enhanced expression of CD19". Blood. 118 (7): 1828–37. doi:10.1182/blood-2011-01-330472. PMC 3158715. PMID 21693761.
↑ Park JH, Resnick ES, Cunningham-Rundles C (December 2011). "Perspectives on common variable immune deficiency". Ann. N. Y. Acad. Sci. 1246: 41–9. doi:10.1111/j.1749-6632.2011.06338.x. PMC 3428018. PMID 22236429.
↑ ^20.0 ^20.1 ^20.2 ^20.3 ^20.4 ^20.5 ^20.6 ^20.7 ^20.8 Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R (November 2013). "New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin". Clin. Exp. Immunol. 174 (2): 203–11. doi:10.1111/cei.12178. PMC 3828823. PMID 23859429.
↑ Ochs HD (December 2014). "Common variable immunodeficiency (CVID): new genetic insight and unanswered questions". Clin. Exp. Immunol. 178 Suppl 1: 5–6. doi:10.1111/cei.12491. PMC 4285471. PMID 25546742.
↑ Coulter TI, Chandra A, Bacon CM, Babar J, Curtis J, Screaton N, Goodlad JR, Farmer G, Steele CL, Leahy TR, Doffinger R, Baxendale H, Bernatoniene J, Edgar JD, Longhurst HJ, Ehl S, Speckmann C, Grimbacher B, Sediva A, Milota T, Faust SN, Williams AP, Hayman G, Kucuk ZY, Hague R, French P, Brooker R, Forsyth P, Herriot R, Cancrini C, Palma P, Ariganello P, Conlon N, Feighery C, Gavin PJ, Jones A, Imai K, Ibrahim MA, Markelj G, Abinun M, Rieux-Laucat F, Latour S, Pellier I, Fischer A, Touzot F, Casanova JL, Durandy A, Burns SO, Savic S, Kumararatne DS, Moshous D, Kracker S, Vanhaesebroeck B, Okkenhaug K, Picard C, Nejentsev S, Condliffe AM, Cant AJ (February 2017). "Clinical spectrum and features of activated phosphoinositide 3-kinase δ syndrome: A large patient cohort study". J. Allergy Clin. Immunol. 139 (2): 597–606.e4. doi:10.1016/j.jaci.2016.06.021. PMC 5292996. PMID 27555459.
↑ Lucas CL, Kuehn HS, Zhao F, Niemela JE, Deenick EK, Palendira U, Avery DT, Moens L, Cannons JL, Biancalana M, Stoddard J, Ouyang W, Frucht DM, Rao VK, Atkinson TP, Agharahimi A, Hussey AA, Folio LR, Olivier KN, Fleisher TA, Pittaluga S, Holland SM, Cohen JI, Oliveira JB, Tangye SG, Schwartzberg PL, Lenardo MJ, Uzel G (January 2014). "Dominant-activating germline mutations in the gene encoding the PI(3)K catalytic subunit p110δ result in T cell senescence and human immunodeficiency". Nat. Immunol. 15 (1): 88–97. doi:10.1038/ni.2771. PMC 4209962. PMID 24165795.
↑ Maccari ME, Abolhassani H, Aghamohammadi A, Aiuti A, Aleinikova O, Bangs C, Baris S, Barzaghi F, Baxendale H, Buckland M, Burns SO, Cancrini C, Cant A, Cathébras P, Cavazzana M, Chandra A, Conti F, Coulter T, Devlin LA, Edgar J, Faust S, Fischer A, Garcia-Prat M, Hammarström L, Heeg M, Jolles S, Karakoc-Aydiner E, Kindle G, Kiykim A, Kumararatne D, Grimbacher B, Longhurst H, Mahlaoui N, Milota T, Moreira F, Moshous D, Mukhina A, Neth O, Neven B, Nieters A, Olbrich P, Ozen A, Pachlopnik Schmid J, Picard C, Prader S, Rae W, Reichenbach J, Rusch S, Savic S, Scarselli A, Scheible R, Sediva A, Sharapova SO, Shcherbina A, Slatter M, Soler-Palacin P, Stanislas A, Suarez F, Tucci F, Uhlmann A, van Montfrans J, Warnatz K, Williams AP, Wood P, Kracker S, Condliffe AM, Ehl S (2018). "Disease Evolution and Response to Rapamycin in Activated Phosphoinositide 3-Kinase δ Syndrome: The European Society for Immunodeficiencies-Activated Phosphoinositide 3-Kinase δ Syndrome Registry". Front Immunol. 9: 543. doi:10.3389/fimmu.2018.00543. PMC 5863269. PMID 29599784. Vancouver style error: initials (help)
↑ Leslie NR, Longy M (April 2016). "Inherited PTEN mutations and the prediction of phenotype". Semin. Cell Dev. Biol. 52: 30–8. doi:10.1016/j.semcdb.2016.01.030. PMID 26827793.
↑ Tsujita Y, Mitsui-Sekinaka K, Imai K, Yeh TW, Mitsuiki N, Asano T, Ohnishi H, Kato Z, Sekinaka Y, Zaha K, Kato T, Okano T, Takashima T, Kobayashi K, Kimura M, Kunitsu T, Maruo Y, Kanegane H, Takagi M, Yoshida K, Okuno Y, Muramatsu H, Shiraishi Y, Chiba K, Tanaka H, Miyano S, Kojima S, Ogawa S, Ohara O, Okada S, Kobayashi M, Morio T, Nonoyama S (December 2016). "Phosphatase and tensin homolog (PTEN) mutation can cause activated phosphatidylinositol 3-kinase δ syndrome-like immunodeficiency". J. Allergy Clin. Immunol. 138 (6): 1672–1680.e10. doi:10.1016/j.jaci.2016.03.055. PMID 27426521.
↑ van Zelm MC, Smet J, Adams B, Mascart F, Schandené L, Janssen F, Ferster A, Kuo CC, Levy S, van Dongen JJ, van der Burg M (April 2010). "CD81 gene defect in humans disrupts CD19 complex formation and leads to antibody deficiency". J. Clin. Invest. 120 (4): 1265–74. doi:10.1172/JCI39748. PMC 2846042. PMID 20237408.
↑ Castigli E, Wilson SA, Garibyan L, Rachid R, Bonilla F, Schneider L, Geha RS (August 2005). "TACI is mutant in common variable immunodeficiency and IgA deficiency". Nat. Genet. 37 (8): 829–34. doi:10.1038/ng1601. PMID 16007086.
↑ Tsuji S, Cortesão C, Bram RJ, Platt JL, Cascalho M (November 2011). "TACI deficiency impairs sustained Blimp-1 expression in B cells decreasing long-lived plasma cells in the bone marrow". Blood. 118 (22): 5832–9. doi:10.1182/blood-2011-05-353961. PMC 3228499. PMID 21984806.
↑ Martinez-Gallo M, Radigan L, Almejún MB, Martínez-Pomar N, Matamoros N, Cunningham-Rundles C (February 2013). "TACI mutations and impaired B-cell function in subjects with CVID and healthy heterozygotes". J. Allergy Clin. Immunol. 131 (2): 468–76. doi:10.1016/j.jaci.2012.10.029. PMC 3646641. PMID 23237420.
↑ Warnatz K, Salzer U, Rizzi M, Fischer B, Gutenberger S, Böhm J, Kienzler AK, Pan-Hammarström Q, Hammarström L, Rakhmanov M, Schlesier M, Grimbacher B, Peter HH, Eibel H (August 2009). "B-cell activating factor receptor deficiency is associated with an adult-onset antibody deficiency syndrome in humans". Proc. Natl. Acad. Sci. U.S.A. 106 (33): 13945–50. doi:10.1073/pnas.0903543106. PMC 2722504. PMID 19666484.
↑ Woolf N (March 1978). "The origins of atherosclerosis". Postgrad Med J. 54 (629): 156–62. PMC 2425199. PMID 349534.
↑ Wang HY, Ma CA, Zhao Y, Fan X, Zhou Q, Edmonds P, Uzel G, Oliveira JB, Orange J, Jain A (March 2013). "Antibody deficiency associated with an inherited autosomal dominant mutation in TWEAK". Proc. Natl. Acad. Sci. U.S.A. 110 (13): 5127–32. doi:10.1073/pnas.1221211110. PMC 3612633. PMID 23493554.
↑ Sadat MA, Moir S, Chun TW, Lusso P, Kaplan G, Wolfe L, Memoli MJ, He M, Vega H, Kim L, Huang Y, Hussein N, Nievas E, Mitchell R, Garofalo M, Louie A, Ireland DC, Grunes C, Cimbro R, Patel V, Holzapfel G, Salahuddin D, Bristol T, Adams D, Marciano BE, Hegde M, Li Y, Calvo KR, Stoddard J, Justement JS, Jacques J, Priel D, Murray D, Sun P, Kuhns DB, Boerkoel CF, Chiorini JA, Di Pasquale G, Verthelyi D, Rosenzweig SD (April 2014). "Glycosylation, hypogammaglobulinemia, and resistance to viral infections". N. Engl. J. Med. 370 (17): 1615–1625. doi:10.1056/NEJMoa1302846. PMC 4066413. PMID 24716661. Vancouver style error: initials (help)
↑ Chang J, Block TM, Guo JT (2015). "Viral resistance of MOGS-CDG patients implies a broad-spectrum strategy against acute virus infections". Antivir. Ther. (Lond.). 20 (3): 257–9. doi:10.3851/IMP2907. PMC 4446249. PMID 25318123.
↑ Rider NL, Boisson B, Jyonouchi S, Hanson EP, Rosenzweig SD, Cassanova JL, Orange JS (2015). "Novel TTC37 Mutations in a Patient with Immunodeficiency without Diarrhea: Extending the Phenotype of Trichohepatoenteric Syndrome". Front Pediatr. 3: 2. doi:10.3389/fped.2015.00002. PMC 4311608. PMID 25688341.
↑ Lee WI, Huang JL, Chen CC, Lin JL, Wu RC, Jaing TH, Ou LS (March 2016). "Identifying Mutations of the Tetratricopeptide Repeat Domain 37 (TTC37) Gene in Infants With Intractable Diarrhea and a Comparison of Asian and Non-Asian Phenotype and Genotype: A Global Case-report Study of a Well-Defined Syndrome With Immunodeficiency". Medicine (Baltimore). 95 (9): e2918. doi:10.1097/MD.0000000000002918. PMC 4782876. PMID 26945392.
↑ Keller MD, Pandey R, Li D, Glessner J, Tian L, Henrickson SE, Chinn IK, Monaco-Shawver L, Heimall J, Hou C, Otieno FG, Jyonouchi S, Calabrese L, van Montfrans J, Orange JS, Hakonarson H (August 2016). "Mutation in IRF2BP2 is responsible for a familial form of common variable immunodeficiency disorder". J. Allergy Clin. Immunol. 138 (2): 544–550.e4. doi:10.1016/j.jaci.2016.01.018. PMC 4976039. PMID 27016798.
↑ Artac H, Reisli I, Kara R, Pico-Knijnenburg I, Adin-Çinar S, Pekcan S, Jol-van der Zijde CM, van Tol MJ, Bakker-Jonges LE, van Dongen JJ, van der Burg M, van Zelm MC (October 2010). "B-cell maturation and antibody responses in individuals carrying a mutated CD19 allele". Genes Immun. 11 (7): 523–30. doi:10.1038/gene.2010.22. PMID 20445561.
↑ van Zelm MC, Reisli I, van der Burg M, Castaño D, van Noesel CJ, van Tol MJ, Woellner C, Grimbacher B, Patiño PJ, van Dongen JJ, Franco JL (May 2006). "An antibody-deficiency syndrome due to mutations in the CD19 gene". N. Engl. J. Med. 354 (18): 1901–12. doi:10.1056/NEJMoa051568. PMID 16672701.
↑ Kuijpers TW, Bende RJ, Baars PA, Grummels A, Derks IA, Dolman KM, Beaumont T, Tedder TF, van Noesel CJ, Eldering E, van Lier RA (January 2010). "CD20 deficiency in humans results in impaired T cell-independent antibody responses". J. Clin. Invest. 120 (1): 214–22. doi:10.1172/JCI40231. PMC 2798692. PMID 20038800.
↑ Thiel J, Kimmig L, Salzer U, Grudzien M, Lebrecht D, Hagena T, Draeger R, Voelxen N, Völxen N, Bergbreiter A, Jennings S, Gutenberger S, Aichem A, Illges H, Hannan JP, Kienzler AK, Rizzi M, Eibel H, Peter HH, Warnatz K, Grimbacher B, Rump JA, Schlesier M (March 2012). J. Allergy Clin. Immunol. 129 (3): 801–810.e6. doi:10.1016/j.jaci.2011.09.027. PMID 22035880. Text "title Genetic CD21 deficiency is associated with hypogammaglobulinemia " ignored (help); Missing or empty |title= (help)
↑ Wedatilake Y, Niazi R, Fassone E, Powell CA, Pearce S, Plagnol V, Saldanha JW, Kleta R, Chong WK, Footitt E, Mills PB, Taanman JW, Minczuk M, Clayton PT, Rahman S (July 2016). "TRNT1 deficiency: clinical, biochemical and molecular genetic features". Orphanet J Rare Dis. 11 (1): 90. doi:10.1186/s13023-016-0477-0. PMC 4930608. PMID 27370603.
↑ Wiseman DH, May A, Jolles S, Connor P, Powell C, Heeney MM, Giardina PJ, Klaassen RJ, Chakraborty P, Geraghty MT, Major-Cook N, Kannengiesser C, Thuret I, Thompson AA, Marques L, Hughes S, Bonney DK, Bottomley SS, Fleming MD, Wynn RF (July 2013). "A novel syndrome of congenital sideroblastic anemia, B-cell immunodeficiency, periodic fevers, and developmental delay (SIFD)". Blood. 122 (1): 112–23. doi:10.1182/blood-2012-08-439083. PMC 3761334. PMID 23553769.
↑ Jain A, Ma CA, Liu S, Brown M, Cohen J, Strober W (March 2001). "Specific missense mutations in NEMO result in hyper-IgM syndrome with hypohydrotic ectodermal dysplasia". Nat. Immunol. 2 (3): 223–8. doi:10.1038/85277. PMID 11224521.
↑ Tuijnenburg P, Lango Allen H, Burns SO, Greene D, Jansen MH, Staples E, Stephens J, Carss KJ, Biasci D, Baxendale H, Thomas M, Chandra A, Kiani-Alikhan S, Longhurst HJ, Seneviratne SL, Oksenhendler E, Simeoni I, de Bree GJ, Tool A, van Leeuwen E, Ebberink E, Meijer AB, Tuna S, Whitehorn D, Brown M, Turro E, Thrasher AJ, Smith K, Thaventhiran JE, Kuijpers TW (October 2018). "Loss-of-function nuclear factor κB subunit 1 (NFKB1) variants are the most common monogenic cause of common variable immunodeficiency in Europeans". J. Allergy Clin. Immunol. 142 (4): 1285–1296. doi:10.1016/j.jaci.2018.01.039. PMC 6148345. PMID 29477724. Vancouver style error: initials (help)
↑ Fliegauf M, Bryant VL, Frede N, Slade C, Woon ST, Lehnert K, Winzer S, Bulashevska A, Scerri T, Leung E, Jordan A, Keller B, de Vries E, Cao H, Yang F, Schäffer AA, Warnatz K, Browett P, Douglass J, Ameratunga RV, van der Meer JW, Grimbacher B (September 2015). "Haploinsufficiency of the NF-κB1 Subunit p50 in Common Variable Immunodeficiency". Am. J. Hum. Genet. 97 (3): 389–403. doi:10.1016/j.ajhg.2015.07.008. PMC 4564940. PMID 26279205.
↑ Chen K, Coonrod EM, Kumánovics A, Franks ZF, Durtschi JD, Margraf RL, Wu W, Heikal NM, Augustine NH, Ridge PG, Hill HR, Jorde LB, Weyrich AS, Zimmerman GA, Gundlapalli AV, Bohnsack JF, Voelkerding KV (November 2013). "Germline mutations in NFKB2 implicate the noncanonical NF-κB pathway in the pathogenesis of common variable immunodeficiency". Am. J. Hum. Genet. 93 (5): 812–24. doi:10.1016/j.ajhg.2013.09.009. PMC 3824125. PMID 24140114.
↑ Shi C, Wang F, Tong A, Zhang XQ, Song HM, Liu ZY, Lyu W, Liu YH, Xia WB (October 2016). "NFKB2 mutation in common variable immunodeficiency and isolated adrenocorticotropic hormone deficiency: A case report and review of literature". Medicine (Baltimore). 95 (40): e5081. doi:10.1097/MD.0000000000005081. PMC 5059085. PMID 27749582.
↑ Georgopoulos K, Winandy S, Avitahl N (1997). "The role of the Ikaros gene in lymphocyte development and homeostasis". Annu. Rev. Immunol. 15: 155–76. doi:10.1146/annurev.immunol.15.1.155. PMID 9143685.
↑ Kuehn HS, Boisson B, Cunningham-Rundles C, Reichenbach J, Stray-Pedersen A, Gelfand EW, Maffucci P, Pierce KR, Abbott JK, Voelkerding KV, South ST, Augustine NH, Bush JS, Dolen WK, Wray BB, Itan Y, Cobat A, Sorte HS, Ganesan S, Prader S, Martins TB, Lawrence MG, Orange JS, Calvo KR, Niemela JE, Casanova JL, Fleisher TA, Hill HR, Kumánovics A, Conley ME, Rosenzweig SD (March 2016). "Loss of B Cells in Patients with Heterozygous Mutations in IKAROS". N. Engl. J. Med. 374 (11): 1032–1043. doi:10.1056/NEJMoa1512234. PMC 4836293. PMID 26981933.
↑ Lou Z, Casali P, Xu Z (2015). "Regulation of B Cell Differentiation by Intracellular Membrane-Associated Proteins and microRNAs: Role in the Antibody Response". Front Immunol. 6: 537. doi:10.3389/fimmu.2015.00537. PMC 4620719. PMID 26579118.
↑ Jansen EJ, Timal S, Ryan M, Ashikov A, van Scherpenzeel M, Graham LA, Mandel H, Hoischen A, Iancu TC, Raymond K, Steenbergen G, Gilissen C, Huijben K, van Bakel NH, Maeda Y, Rodenburg RJ, Adamowicz M, Crushell E, Koenen H, Adams D, Vodopiutz J, Greber-Platzer S, Müller T, Dueckers G, Morava E, Sykut-Cegielska J, Martens GJ, Wevers RA, Niehues T, Huynen MA, Veltman JA, Stevens TH, Lefeber DJ (May 2016). "ATP6AP1 deficiency causes an immunodeficiency with hepatopathy, cognitive impairment and abnormal protein glycosylation". Nat Commun. 7: 11600. doi:10.1038/ncomms11600. PMC 4894975. PMID 27231034.
↑ Revy P, Muto T, Levy Y, Geissmann F, Plebani A, Sanal O, Catalan N, Forveille M, Dufourcq-Labelouse R, Gennery A, Tezcan I, Ersoy F, Kayserili H, Ugazio AG, Brousse N, Muramatsu M, Notarangelo LD, Kinoshita K, Honjo T, Fischer A, Durandy A (September 2000). "Activation-induced cytidine deaminase (AID) deficiency causes the autosomal recessive form of the Hyper-IgM syndrome (HIGM2)". Cell. 102 (5): 565–75. PMID 11007475.
↑ Durandy A, Cantaert T, Kracker S, Meffre E (March 2013). "Potential roles of activation-induced cytidine deaminase in promotion or prevention of autoimmunity in humans". Autoimmunity. 46 (2): 148–56. doi:10.3109/08916934.2012.750299. PMC 4077434. PMID 23215867.
↑ Hase K, Takahashi D, Ebisawa M, Kawano S, Itoh K, Ohno H (August 2008). "Activation-induced cytidine deaminase deficiency causes organ-specific autoimmune disease". PLoS ONE. 3 (8): e3033. doi:10.1371/journal.pone.0003033. PMC 2515643. PMID 18716662.
↑ Caradonna S, Muller-Weeks S (December 2001). "The nature of enzymes involved in uracil-DNA repair: isoform characteristics of proteins responsible for nuclear and mitochondrial genomic integrity". Curr. Protein Pept. Sci. 2 (4): 335–47. PMID 12369930.
↑ Imai K, Slupphaug G, Lee WI, Revy P, Nonoyama S, Catalan N, Yel L, Forveille M, Kavli B, Krokan HE, Ochs HD, Fischer A, Durandy A (October 2003). "Human uracil-DNA glycosylase deficiency associated with profoundly impaired immunoglobulin class-switch recombination". Nat. Immunol. 4 (10): 1023–8. doi:10.1038/ni974. PMID 12958596.
↑ Davies EG, Thrasher AJ (April 2010). "Update on the hyper immunoglobulin M syndromes". Br. J. Haematol. 149 (2): 167–80. doi:10.1111/j.1365-2141.2010.08077.x. PMC 2855828. PMID 20180797.
↑ Kracker S, Di Virgilio M, Schwartzentruber J, Cuenin C, Forveille M, Deau MC, McBride KM, Majewski J, Gazumyan A, Seneviratne S, Grimbacher B, Kutukculer N, Herceg Z, Cavazzana M, Jabado N, Nussenzweig MC, Fischer A, Durandy A (April 2015). "An inherited immunoglobulin class-switch recombination deficiency associated with a defect in the INO80 chromatin remodeling complex". J. Allergy Clin. Immunol. 135 (4): 998–1007.e6. doi:10.1016/j.jaci.2014.08.030. PMC 4382329. PMID 25312759.
↑ Gardès P, Forveille M, Alyanakian MA, Aucouturier P, Ilencikova D, Leroux D, Rahner N, Mazerolles F, Fischer A, Kracker S, Durandy A (February 2012). "Human MSH6 deficiency is associated with impaired antibody maturation". J. Immunol. 188 (4): 2023–9. doi:10.4049/jimmunol.1102984. PMID 22250089.
↑ ^62.0 ^62.1 ^62.2 Yel L (January 2010). "Selective IgA deficiency". J. Clin. Immunol. 30 (1): 10–6. doi:10.1007/s10875-009-9357-x. PMC 2821513. PMID 20101521.
↑ Wang Z, Yunis D, Irigoyen M, Kitchens B, Bottaro A, Alt FW, Alper CA (June 1999). "Discordance between IgA switching at the DNA level and IgA expression at the mRNA level in IgA-deficient patients". Clin. Immunol. 91 (3): 263–70. doi:10.1006/clim.1999.4702. PMID 10370371.
↑ Conley ME, Cooper MD (August 1981). "Immature IgA B cells in IgA-deficient patients". N. Engl. J. Med. 305 (9): 495–7. doi:10.1056/NEJM198108273050905. PMID 6973088.
↑ Hammarström L, Lönnqvist B, Ringdén O, Smith CI, Wiebe T (April 1985). "Transfer of IgA deficiency to a bone-marrow-grafted patient with aplastic anaemia". Lancet. 1 (8432): 778–81. PMID 2858666.
↑
Rogers RL, Javed TA, Ross RE, Virella G, Stuart RK, Frei-Lahr D (April 1998). "Transfusion management of an IgA deficient patient with anti-IgA and incidental correction of IgA deficiency after allogeneic bone marrow transplantation". Am. J. Hematol. 57 (4): 326–30. PMID 9544978.</re
- Patient with severe IgA deficiency can have anaphylactic reactions secondary to blood transfusion or its products. It is specifically seen in patients with undetectable serum IgA levels. These patients develop anti IgA antibodies so they should be advised to wear medical alert bracelet.<ref name="pmid17137841">Horn J, Thon V, Bartonkova D, Salzer U, Warnatz K, Schlesier M, Peter HH, Grimbacher B (February 2007). "Anti-IgA antibodies in common variable immunodeficiency (CVID): diagnostic workup and therapeutic strategy". Clin. Immunol. 122 (2): 156–62. doi:10.1016/j.clim.2006.10.002. PMID 17137841.
↑ Burks AW, Sampson HA, Buckley RH (February 1986). "Anaphylactic reactions after gamma globulin administration in patients with hypogammaglobulinemia. Detection of IgE antibodies to IgA". N. Engl. J. Med. 314 (9): 560–4. doi:10.1056/NEJM198602273140907. PMID 3945295.
↑ Sala P, Colatutto A, Fabbro D, Mariuzzi L, Marzinotto S, Toffoletto B, Perosa AR, Damante G (April 2016). "Immunoglobulin K light chain deficiency: A rare, but probably underestimated, humoral immune defect". Eur J Med Genet. 59 (4): 219–22. doi:10.1016/j.ejmg.2016.02.003. PMID 26853951.
↑ Zegers BJ, Maertzdorf WJ, Van Loghem E, Mul NA, Stoop JW, Van Der Laag J, Vossen JJ, Ballieux RE (May 1976). "Kappa-chain deficiency. An immunoglobulin disorder". N. Engl. J. Med. 294 (19): 1026–30. doi:10.1056/NEJM197605062941902. PMID 815819.
↑ Stavnezer-Nordgren J, Kekish O, Zegers BJ (October 1985). "Molecular defects in a human immunoglobulin kappa chain deficiency". Science. 230 (4724): 458–61. PMID 3931219.
↑ Hobbs JR, Milner RD, Watt PJ (December 1967). "Gamma-M deficiency predisposing to meningococcal septicaemia". Br Med J. 4 (5579): 583–6. PMC 1749295. PMID 4168495.
↑ Gupta S, Gupta A (2017). "Selective IgM Deficiency-An Underestimated Primary Immunodeficiency". Front Immunol. 8: 1056. doi:10.3389/fimmu.2017.01056. PMC 5591887. PMID 28928736.
↑ Louis AG, Gupta S (April 2014). "Primary selective IgM deficiency: an ignored immunodeficiency". Clin Rev Allergy Immunol. 46 (2): 104–11. doi:10.1007/s12016-013-8375-x. PMID 23760686.
↑ Stepensky P, Keller B, Buchta M, Kienzler AK, Elpeleg O, Somech R, Cohen S, Shachar I, Miosge LA, Schlesier M, Fuchs I, Enders A, Eibel H, Grimbacher B, Warnatz K (February 2013). "Deficiency of caspase recruitment domain family, member 11 (CARD11), causes profound combined immunodeficiency in human subjects". J. Allergy Clin. Immunol. 131 (2): 477–85.e1. doi:10.1016/j.jaci.2012.11.050. PMID 23374270.
↑ Snow AL, Xiao W, Stinson JR, Lu W, Chaigne-Delalande B, Zheng L, Pittaluga S, Matthews HF, Schmitz R, Jhavar S, Kuchen S, Kardava L, Wang W, Lamborn IT, Jing H, Raffeld M, Moir S, Fleisher TA, Staudt LM, Su HC, Lenardo MJ (November 2012). "Congenital B cell lymphocytosis explained by novel germline CARD11 mutations". J. Exp. Med. 209 (12): 2247–61. doi:10.1084/jem.20120831. PMC 3501355. PMID 23129749.
↑ Arjunaraja S, Snow AL (December 2015). "Gain-of-function mutations and immunodeficiency: at a loss for proper tuning of lymphocyte signaling". Curr Opin Allergy Clin Immunol. 15 (6): 533–8. doi:10.1097/ACI.0000000000000217. PMC 4672729. PMID 26406182.
↑ Lenz G, Davis RE, Ngo VN, Lam L, George TC, Wright GW, Dave SS, Zhao H, Xu W, Rosenwald A, Ott G, Muller-Hermelink HK, Gascoyne RD, Connors JM, Rimsza LM, Campo E, Jaffe ES, Delabie J, Smeland EB, Fisher RI, Chan WC, Staudt LM (March 2008). "Oncogenic CARD11 mutations in human diffuse large B cell lymphoma". Science. 319 (5870): 1676–9. doi:10.1126/science.1153629. PMID 18323416.
↑ Turvey SE, Durandy A, Fischer A, Fung SY, Geha RS, Gewies A, Giese T, Greil J, Keller B, McKinnon ML, Neven B, Rozmus J, Ruland J, Snow AL, Stepensky P, Warnatz K (August 2014). "The CARD11-BCL10-MALT1 (CBM) signalosome complex: Stepping into the limelight of human primary immunodeficiency". J. Allergy Clin. Immunol. 134 (2): 276–84. doi:10.1016/j.jaci.2014.06.015. PMC 4167767. PMID 25087226.

[pmid24909997-1] 1.0 ^1.1 Hernandez-Trujillo VP, Scalchunes C, Cunningham-Rundles C, Ochs HD, Bonilla FA, Paris K, Yel L, Sullivan KE (August 2014). "Autoimmunity and inflammation in X-linked agammaglobulinemia". J. Clin. Immunol. 34 (6): 627–32. doi:10.1007/s10875-014-0056-x. PMC 4157090. PMID 24909997.

[pmid8070812-2] Rawlings DJ, Witte ON (April 1994). "Bruton's tyrosine kinase is a key regulator in B-cell development". Immunol. Rev. 138: 105–19. PMID 8070812.

[pmid16862044-3] Winkelstein JA, Marino MC, Lederman HM, Jones SM, Sullivan K, Burks AW, Conley ME, Cunningham-Rundles C, Ochs HD (July 2006). "X-linked agammaglobulinemia: report on a United States registry of 201 patients". Medicine (Baltimore). 85 (4): 193–202. doi:10.1097/01.md.0000229482.27398.ad. PMID 16862044.

[pmid19597006-4] Fried AJ, Bonilla FA (July 2009). "Pathogenesis, diagnosis, and management of primary antibody deficiencies and infections". Clin. Microbiol. Rev. 22 (3): 396–414. doi:10.1128/CMR.00001-09. PMC 2708392. PMID 19597006.

[pmid24215410-5] Berglöf A, Turunen JJ, Gissberg O, Bestas B, Blomberg KE, Smith CI (December 2013). "Agammaglobulinemia: causative mutations and their implications for novel therapies". Expert Rev Clin Immunol. 9 (12): 1205–21. doi:10.1586/1744666X.2013.850030. PMID 24215410.

[pmid21466548-6] 6.0 ^6.1 Cunningham-Rundles C (June 2011). "Key aspects for successful immunoglobulin therapy of primary immunodeficiencies". Clin. Exp. Immunol. 164 Suppl 2: 16–9. doi:10.1111/j.1365-2249.2011.04390.x. PMC 3087906. PMID 21466548.

[pmid8890099-7] Yel L, Minegishi Y, Coustan-Smith E, Buckley RH, Trübel H, Pachman LM, Kitchingman GR, Campana D, Rohrer J, Conley ME (November 1996). "Mutations in the mu heavy-chain gene in patients with agammaglobulinemia". N. Engl. J. Med. 335 (20): 1486–93. doi:10.1056/NEJM199611143352003. PMID 8890099.

[pmid26910880-8] Abolhassani H, Vitali M, Lougaris V, Giliani S, Parvaneh N, Parvaneh L, Mirminachi B, Cheraghi T, Khazaei H, Mahdaviani SA, Kiaei F, Tavakolinia N, Mohammadi J, Negahdari B, Rezaei N, Hammarstrom L, Plebani A, Aghamohammadi A (2016). "Cohort of Iranian Patients with Congenital Agammaglobulinemia: Mutation Analysis and Novel Gene Defects". Expert Rev Clin Immunol. 12 (4): 479–86. doi:10.1586/1744666X.2016.1139451. PMID 26910880.

[pmid11920841-9] Wang Y, Kanegane H, Sanal O, Tezcan I, Ersoy F, Futatani T, Miyawaki T (April 2002). "Novel Igalpha (CD79a) gene mutation in a Turkish patient with B cell-deficient agammaglobulinemia". Am. J. Med. Genet. 108 (4): 333–6. PMID 11920841.

[pmid21276714-10] 10.0 ^10.1 ^10.2 ^10.3 ^10.4 Maarschalk-Ellerbroek LJ, Hoepelman IM, Ellerbroek PM (May 2011). "Immunoglobulin treatment in primary antibody deficiency". Int. J. Antimicrob. Agents. 37 (5): 396–404. doi:10.1016/j.ijantimicag.2010.11.027. PMID 21276714.

[pmid17709424-11] Ferrari S, Lougaris V, Caraffi S, Zuntini R, Yang J, Soresina A, Meini A, Cazzola G, Rossi C, Reth M, Plebani A (September 2007). "Mutations of the Igbeta gene cause agammaglobulinemia in man". J. Exp. Med. 204 (9): 2047–51. doi:10.1084/jem.20070264. PMC 2118692. PMID 17709424.

[pmid17675462-12] 12.0 ^12.1 Dobbs AK, Yang T, Farmer D, Kager L, Parolini O, Conley ME (August 2007). "Cutting edge: a hypomorphic mutation in Igbeta (CD79b) in a patient with immunodeficiency and a leaky defect in B cell development". J. Immunol. 179 (4): 2055–9. PMID 17675462.

[pmid10583958-13] Minegishi Y, Rohrer J, Coustan-Smith E, Lederman HM, Pappu R, Campana D, Chan AC, Conley ME (December 1999). "An essential role for BLNK in human B cell development". Science. 286 (5446): 1954–7. PMID 10583958.

[pmid9419212-14] Minegishi Y, Coustan-Smith E, Wang YH, Cooper MD, Campana D, Conley ME (January 1998). "Mutations in the human lambda5/14.1 gene result in B cell deficiency and agammaglobulinemia". J. Exp. Med. 187 (1): 71–7. PMC 2199185. PMID 9419212.

[pmid25133428-15] 15.0 ^15.1 Deau MC, Heurtier L, Frange P, Suarez F, Bole-Feysot C, Nitschke P, Cavazzana M, Picard C, Durandy A, Fischer A, Kracker S (September 2014). "A human immunodeficiency caused by mutations in the PIK3R1 gene". J. Clin. Invest. 124 (9): 3923–8. doi:10.1172/JCI75746. PMC 4153704. PMID 25133428.

[pmid7705412-16] Morena M, Haire RN, Ohta Y, Nelson RP, Litman RT, Day NK, Good RA, Litman GW (March 1995). "Predominance of sterile immunoglobulin transcripts in a female phenotypically resembling Bruton's agammaglobulinemia". Eur. J. Immunol. 25 (3): 809–15. doi:10.1002/eji.1830250327. PMID 7705412.

[pmid24216514-17] Boisson B, Wang YD, Bosompem A, Ma CS, Lim A, Kochetkov T, Tangye SG, Casanova JL, Conley ME (November 2013). "A recurrent dominant negative E47 mutation causes agammaglobulinemia and BCR(-) B cells". J. Clin. Invest. 123 (11): 4781–5. doi:10.1172/JCI71927. PMC 3809807. PMID 24216514.

[pmid21693761-18] Dobbs AK, Bosompem A, Coustan-Smith E, Tyerman G, Saulsbury FT, Conley ME (August 2011). "Agammaglobulinemia associated with BCR⁻ B cells and enhanced expression of CD19". Blood. 118 (7): 1828–37. doi:10.1182/blood-2011-01-330472. PMC 3158715. PMID 21693761.

[pmid22236429-19] Park JH, Resnick ES, Cunningham-Rundles C (December 2011). "Perspectives on common variable immune deficiency". Ann. N. Y. Acad. Sci. 1246: 41–9. doi:10.1111/j.1749-6632.2011.06338.x. PMC 3428018. PMID 22236429.

[pmid23859429-20] 20.0 ^20.1 ^20.2 ^20.3 ^20.4 ^20.5 ^20.6 ^20.7 ^20.8 Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R (November 2013). "New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin". Clin. Exp. Immunol. 174 (2): 203–11. doi:10.1111/cei.12178. PMC 3828823. PMID 23859429.

[pmid25546742-21] Ochs HD (December 2014). "Common variable immunodeficiency (CVID): new genetic insight and unanswered questions". Clin. Exp. Immunol. 178 Suppl 1: 5–6. doi:10.1111/cei.12491. PMC 4285471. PMID 25546742.

[pmid27555459-22] Coulter TI, Chandra A, Bacon CM, Babar J, Curtis J, Screaton N, Goodlad JR, Farmer G, Steele CL, Leahy TR, Doffinger R, Baxendale H, Bernatoniene J, Edgar JD, Longhurst HJ, Ehl S, Speckmann C, Grimbacher B, Sediva A, Milota T, Faust SN, Williams AP, Hayman G, Kucuk ZY, Hague R, French P, Brooker R, Forsyth P, Herriot R, Cancrini C, Palma P, Ariganello P, Conlon N, Feighery C, Gavin PJ, Jones A, Imai K, Ibrahim MA, Markelj G, Abinun M, Rieux-Laucat F, Latour S, Pellier I, Fischer A, Touzot F, Casanova JL, Durandy A, Burns SO, Savic S, Kumararatne DS, Moshous D, Kracker S, Vanhaesebroeck B, Okkenhaug K, Picard C, Nejentsev S, Condliffe AM, Cant AJ (February 2017). "Clinical spectrum and features of activated phosphoinositide 3-kinase δ syndrome: A large patient cohort study". J. Allergy Clin. Immunol. 139 (2): 597–606.e4. doi:10.1016/j.jaci.2016.06.021. PMC 5292996. PMID 27555459.

[pmid24165795-23] Lucas CL, Kuehn HS, Zhao F, Niemela JE, Deenick EK, Palendira U, Avery DT, Moens L, Cannons JL, Biancalana M, Stoddard J, Ouyang W, Frucht DM, Rao VK, Atkinson TP, Agharahimi A, Hussey AA, Folio LR, Olivier KN, Fleisher TA, Pittaluga S, Holland SM, Cohen JI, Oliveira JB, Tangye SG, Schwartzberg PL, Lenardo MJ, Uzel G (January 2014). "Dominant-activating germline mutations in the gene encoding the PI(3)K catalytic subunit p110δ result in T cell senescence and human immunodeficiency". Nat. Immunol. 15 (1): 88–97. doi:10.1038/ni.2771. PMC 4209962. PMID 24165795.

[pmid29599784-24] Maccari ME, Abolhassani H, Aghamohammadi A, Aiuti A, Aleinikova O, Bangs C, Baris S, Barzaghi F, Baxendale H, Buckland M, Burns SO, Cancrini C, Cant A, Cathébras P, Cavazzana M, Chandra A, Conti F, Coulter T, Devlin LA, Edgar J, Faust S, Fischer A, Garcia-Prat M, Hammarström L, Heeg M, Jolles S, Karakoc-Aydiner E, Kindle G, Kiykim A, Kumararatne D, Grimbacher B, Longhurst H, Mahlaoui N, Milota T, Moreira F, Moshous D, Mukhina A, Neth O, Neven B, Nieters A, Olbrich P, Ozen A, Pachlopnik Schmid J, Picard C, Prader S, Rae W, Reichenbach J, Rusch S, Savic S, Scarselli A, Scheible R, Sediva A, Sharapova SO, Shcherbina A, Slatter M, Soler-Palacin P, Stanislas A, Suarez F, Tucci F, Uhlmann A, van Montfrans J, Warnatz K, Williams AP, Wood P, Kracker S, Condliffe AM, Ehl S (2018). "Disease Evolution and Response to Rapamycin in Activated Phosphoinositide 3-Kinase δ Syndrome: The European Society for Immunodeficiencies-Activated Phosphoinositide 3-Kinase δ Syndrome Registry". Front Immunol. 9: 543. doi:10.3389/fimmu.2018.00543. PMC 5863269. PMID 29599784. Vancouver style error: initials (help)

[pmid26827793-25] Leslie NR, Longy M (April 2016). "Inherited PTEN mutations and the prediction of phenotype". Semin. Cell Dev. Biol. 52: 30–8. doi:10.1016/j.semcdb.2016.01.030. PMID 26827793.

[pmid27426521-26] Tsujita Y, Mitsui-Sekinaka K, Imai K, Yeh TW, Mitsuiki N, Asano T, Ohnishi H, Kato Z, Sekinaka Y, Zaha K, Kato T, Okano T, Takashima T, Kobayashi K, Kimura M, Kunitsu T, Maruo Y, Kanegane H, Takagi M, Yoshida K, Okuno Y, Muramatsu H, Shiraishi Y, Chiba K, Tanaka H, Miyano S, Kojima S, Ogawa S, Ohara O, Okada S, Kobayashi M, Morio T, Nonoyama S (December 2016). "Phosphatase and tensin homolog (PTEN) mutation can cause activated phosphatidylinositol 3-kinase δ syndrome-like immunodeficiency". J. Allergy Clin. Immunol. 138 (6): 1672–1680.e10. doi:10.1016/j.jaci.2016.03.055. PMID 27426521.

[pmid20237408-27] van Zelm MC, Smet J, Adams B, Mascart F, Schandené L, Janssen F, Ferster A, Kuo CC, Levy S, van Dongen JJ, van der Burg M (April 2010). "CD81 gene defect in humans disrupts CD19 complex formation and leads to antibody deficiency". J. Clin. Invest. 120 (4): 1265–74. doi:10.1172/JCI39748. PMC 2846042. PMID 20237408.

[pmid16007086-28] Castigli E, Wilson SA, Garibyan L, Rachid R, Bonilla F, Schneider L, Geha RS (August 2005). "TACI is mutant in common variable immunodeficiency and IgA deficiency". Nat. Genet. 37 (8): 829–34. doi:10.1038/ng1601. PMID 16007086.

[pmid21984806-29] Tsuji S, Cortesão C, Bram RJ, Platt JL, Cascalho M (November 2011). "TACI deficiency impairs sustained Blimp-1 expression in B cells decreasing long-lived plasma cells in the bone marrow". Blood. 118 (22): 5832–9. doi:10.1182/blood-2011-05-353961. PMC 3228499. PMID 21984806.

[pmid23237420-30] Martinez-Gallo M, Radigan L, Almejún MB, Martínez-Pomar N, Matamoros N, Cunningham-Rundles C (February 2013). "TACI mutations and impaired B-cell function in subjects with CVID and healthy heterozygotes". J. Allergy Clin. Immunol. 131 (2): 468–76. doi:10.1016/j.jaci.2012.10.029. PMC 3646641. PMID 23237420.

[pmid19666484-31] Warnatz K, Salzer U, Rizzi M, Fischer B, Gutenberger S, Böhm J, Kienzler AK, Pan-Hammarström Q, Hammarström L, Rakhmanov M, Schlesier M, Grimbacher B, Peter HH, Eibel H (August 2009). "B-cell activating factor receptor deficiency is associated with an adult-onset antibody deficiency syndrome in humans". Proc. Natl. Acad. Sci. U.S.A. 106 (33): 13945–50. doi:10.1073/pnas.0903543106. PMC 2722504. PMID 19666484.

[pmid349534-32] Woolf N (March 1978). "The origins of atherosclerosis". Postgrad Med J. 54 (629): 156–62. PMC 2425199. PMID 349534.

[pmid23493554-33] Wang HY, Ma CA, Zhao Y, Fan X, Zhou Q, Edmonds P, Uzel G, Oliveira JB, Orange J, Jain A (March 2013). "Antibody deficiency associated with an inherited autosomal dominant mutation in TWEAK". Proc. Natl. Acad. Sci. U.S.A. 110 (13): 5127–32. doi:10.1073/pnas.1221211110. PMC 3612633. PMID 23493554.

[pmid24716661-34] Sadat MA, Moir S, Chun TW, Lusso P, Kaplan G, Wolfe L, Memoli MJ, He M, Vega H, Kim L, Huang Y, Hussein N, Nievas E, Mitchell R, Garofalo M, Louie A, Ireland DC, Grunes C, Cimbro R, Patel V, Holzapfel G, Salahuddin D, Bristol T, Adams D, Marciano BE, Hegde M, Li Y, Calvo KR, Stoddard J, Justement JS, Jacques J, Priel D, Murray D, Sun P, Kuhns DB, Boerkoel CF, Chiorini JA, Di Pasquale G, Verthelyi D, Rosenzweig SD (April 2014). "Glycosylation, hypogammaglobulinemia, and resistance to viral infections". N. Engl. J. Med. 370 (17): 1615–1625. doi:10.1056/NEJMoa1302846. PMC 4066413. PMID 24716661. Vancouver style error: initials (help)

[pmid25318123-35] Chang J, Block TM, Guo JT (2015). "Viral resistance of MOGS-CDG patients implies a broad-spectrum strategy against acute virus infections". Antivir. Ther. (Lond.). 20 (3): 257–9. doi:10.3851/IMP2907. PMC 4446249. PMID 25318123.

[pmid25688341-36] Rider NL, Boisson B, Jyonouchi S, Hanson EP, Rosenzweig SD, Cassanova JL, Orange JS (2015). "Novel TTC37 Mutations in a Patient with Immunodeficiency without Diarrhea: Extending the Phenotype of Trichohepatoenteric Syndrome". Front Pediatr. 3: 2. doi:10.3389/fped.2015.00002. PMC 4311608. PMID 25688341.

[pmid26945392-37] Lee WI, Huang JL, Chen CC, Lin JL, Wu RC, Jaing TH, Ou LS (March 2016). "Identifying Mutations of the Tetratricopeptide Repeat Domain 37 (TTC37) Gene in Infants With Intractable Diarrhea and a Comparison of Asian and Non-Asian Phenotype and Genotype: A Global Case-report Study of a Well-Defined Syndrome With Immunodeficiency". Medicine (Baltimore). 95 (9): e2918. doi:10.1097/MD.0000000000002918. PMC 4782876. PMID 26945392.

[pmid27016798-38] Keller MD, Pandey R, Li D, Glessner J, Tian L, Henrickson SE, Chinn IK, Monaco-Shawver L, Heimall J, Hou C, Otieno FG, Jyonouchi S, Calabrese L, van Montfrans J, Orange JS, Hakonarson H (August 2016). "Mutation in IRF2BP2 is responsible for a familial form of common variable immunodeficiency disorder". J. Allergy Clin. Immunol. 138 (2): 544–550.e4. doi:10.1016/j.jaci.2016.01.018. PMC 4976039. PMID 27016798.

[pmid20445561-39] Artac H, Reisli I, Kara R, Pico-Knijnenburg I, Adin-Çinar S, Pekcan S, Jol-van der Zijde CM, van Tol MJ, Bakker-Jonges LE, van Dongen JJ, van der Burg M, van Zelm MC (October 2010). "B-cell maturation and antibody responses in individuals carrying a mutated CD19 allele". Genes Immun. 11 (7): 523–30. doi:10.1038/gene.2010.22. PMID 20445561.

[pmid16672701-40] van Zelm MC, Reisli I, van der Burg M, Castaño D, van Noesel CJ, van Tol MJ, Woellner C, Grimbacher B, Patiño PJ, van Dongen JJ, Franco JL (May 2006). "An antibody-deficiency syndrome due to mutations in the CD19 gene". N. Engl. J. Med. 354 (18): 1901–12. doi:10.1056/NEJMoa051568. PMID 16672701.

[pmid20038800-41] Kuijpers TW, Bende RJ, Baars PA, Grummels A, Derks IA, Dolman KM, Beaumont T, Tedder TF, van Noesel CJ, Eldering E, van Lier RA (January 2010). "CD20 deficiency in humans results in impaired T cell-independent antibody responses". J. Clin. Invest. 120 (1): 214–22. doi:10.1172/JCI40231. PMC 2798692. PMID 20038800.

[pmid22035880-42] Thiel J, Kimmig L, Salzer U, Grudzien M, Lebrecht D, Hagena T, Draeger R, Voelxen N, Völxen N, Bergbreiter A, Jennings S, Gutenberger S, Aichem A, Illges H, Hannan JP, Kienzler AK, Rizzi M, Eibel H, Peter HH, Warnatz K, Grimbacher B, Rump JA, Schlesier M (March 2012). J. Allergy Clin. Immunol. 129 (3): 801–810.e6. doi:10.1016/j.jaci.2011.09.027. PMID 22035880. Text "title Genetic CD21 deficiency is associated with hypogammaglobulinemia " ignored (help); Missing or empty |title= (help)

[pmid27370603-43] Wedatilake Y, Niazi R, Fassone E, Powell CA, Pearce S, Plagnol V, Saldanha JW, Kleta R, Chong WK, Footitt E, Mills PB, Taanman JW, Minczuk M, Clayton PT, Rahman S (July 2016). "TRNT1 deficiency: clinical, biochemical and molecular genetic features". Orphanet J Rare Dis. 11 (1): 90. doi:10.1186/s13023-016-0477-0. PMC 4930608. PMID 27370603.

[pmid23553769-44] Wiseman DH, May A, Jolles S, Connor P, Powell C, Heeney MM, Giardina PJ, Klaassen RJ, Chakraborty P, Geraghty MT, Major-Cook N, Kannengiesser C, Thuret I, Thompson AA, Marques L, Hughes S, Bonney DK, Bottomley SS, Fleming MD, Wynn RF (July 2013). "A novel syndrome of congenital sideroblastic anemia, B-cell immunodeficiency, periodic fevers, and developmental delay (SIFD)". Blood. 122 (1): 112–23. doi:10.1182/blood-2012-08-439083. PMC 3761334. PMID 23553769.

[pmid11224521-45] Jain A, Ma CA, Liu S, Brown M, Cohen J, Strober W (March 2001). "Specific missense mutations in NEMO result in hyper-IgM syndrome with hypohydrotic ectodermal dysplasia". Nat. Immunol. 2 (3): 223–8. doi:10.1038/85277. PMID 11224521.

[pmid29477724-46] Tuijnenburg P, Lango Allen H, Burns SO, Greene D, Jansen MH, Staples E, Stephens J, Carss KJ, Biasci D, Baxendale H, Thomas M, Chandra A, Kiani-Alikhan S, Longhurst HJ, Seneviratne SL, Oksenhendler E, Simeoni I, de Bree GJ, Tool A, van Leeuwen E, Ebberink E, Meijer AB, Tuna S, Whitehorn D, Brown M, Turro E, Thrasher AJ, Smith K, Thaventhiran JE, Kuijpers TW (October 2018). "Loss-of-function nuclear factor κB subunit 1 (NFKB1) variants are the most common monogenic cause of common variable immunodeficiency in Europeans". J. Allergy Clin. Immunol. 142 (4): 1285–1296. doi:10.1016/j.jaci.2018.01.039. PMC 6148345. PMID 29477724. Vancouver style error: initials (help)

[pmid26279205-47] Fliegauf M, Bryant VL, Frede N, Slade C, Woon ST, Lehnert K, Winzer S, Bulashevska A, Scerri T, Leung E, Jordan A, Keller B, de Vries E, Cao H, Yang F, Schäffer AA, Warnatz K, Browett P, Douglass J, Ameratunga RV, van der Meer JW, Grimbacher B (September 2015). "Haploinsufficiency of the NF-κB1 Subunit p50 in Common Variable Immunodeficiency". Am. J. Hum. Genet. 97 (3): 389–403. doi:10.1016/j.ajhg.2015.07.008. PMC 4564940. PMID 26279205.

[pmid24140114-48] Chen K, Coonrod EM, Kumánovics A, Franks ZF, Durtschi JD, Margraf RL, Wu W, Heikal NM, Augustine NH, Ridge PG, Hill HR, Jorde LB, Weyrich AS, Zimmerman GA, Gundlapalli AV, Bohnsack JF, Voelkerding KV (November 2013). "Germline mutations in NFKB2 implicate the noncanonical NF-κB pathway in the pathogenesis of common variable immunodeficiency". Am. J. Hum. Genet. 93 (5): 812–24. doi:10.1016/j.ajhg.2013.09.009. PMC 3824125. PMID 24140114.

[pmid27749582-49] Shi C, Wang F, Tong A, Zhang XQ, Song HM, Liu ZY, Lyu W, Liu YH, Xia WB (October 2016). "NFKB2 mutation in common variable immunodeficiency and isolated adrenocorticotropic hormone deficiency: A case report and review of literature". Medicine (Baltimore). 95 (40): e5081. doi:10.1097/MD.0000000000005081. PMC 5059085. PMID 27749582.

[pmid9143685-50] Georgopoulos K, Winandy S, Avitahl N (1997). "The role of the Ikaros gene in lymphocyte development and homeostasis". Annu. Rev. Immunol. 15: 155–76. doi:10.1146/annurev.immunol.15.1.155. PMID 9143685.

[pmid26981933-51] Kuehn HS, Boisson B, Cunningham-Rundles C, Reichenbach J, Stray-Pedersen A, Gelfand EW, Maffucci P, Pierce KR, Abbott JK, Voelkerding KV, South ST, Augustine NH, Bush JS, Dolen WK, Wray BB, Itan Y, Cobat A, Sorte HS, Ganesan S, Prader S, Martins TB, Lawrence MG, Orange JS, Calvo KR, Niemela JE, Casanova JL, Fleisher TA, Hill HR, Kumánovics A, Conley ME, Rosenzweig SD (March 2016). "Loss of B Cells in Patients with Heterozygous Mutations in IKAROS". N. Engl. J. Med. 374 (11): 1032–1043. doi:10.1056/NEJMoa1512234. PMC 4836293. PMID 26981933.

[pmid26579118-52] Lou Z, Casali P, Xu Z (2015). "Regulation of B Cell Differentiation by Intracellular Membrane-Associated Proteins and microRNAs: Role in the Antibody Response". Front Immunol. 6: 537. doi:10.3389/fimmu.2015.00537. PMC 4620719. PMID 26579118.

[pmid27231034-53] Jansen EJ, Timal S, Ryan M, Ashikov A, van Scherpenzeel M, Graham LA, Mandel H, Hoischen A, Iancu TC, Raymond K, Steenbergen G, Gilissen C, Huijben K, van Bakel NH, Maeda Y, Rodenburg RJ, Adamowicz M, Crushell E, Koenen H, Adams D, Vodopiutz J, Greber-Platzer S, Müller T, Dueckers G, Morava E, Sykut-Cegielska J, Martens GJ, Wevers RA, Niehues T, Huynen MA, Veltman JA, Stevens TH, Lefeber DJ (May 2016). "ATP6AP1 deficiency causes an immunodeficiency with hepatopathy, cognitive impairment and abnormal protein glycosylation". Nat Commun. 7: 11600. doi:10.1038/ncomms11600. PMC 4894975. PMID 27231034.

[pmid11007475-54] Revy P, Muto T, Levy Y, Geissmann F, Plebani A, Sanal O, Catalan N, Forveille M, Dufourcq-Labelouse R, Gennery A, Tezcan I, Ersoy F, Kayserili H, Ugazio AG, Brousse N, Muramatsu M, Notarangelo LD, Kinoshita K, Honjo T, Fischer A, Durandy A (September 2000). "Activation-induced cytidine deaminase (AID) deficiency causes the autosomal recessive form of the Hyper-IgM syndrome (HIGM2)". Cell. 102 (5): 565–75. PMID 11007475.

[pmid23215867-55] Durandy A, Cantaert T, Kracker S, Meffre E (March 2013). "Potential roles of activation-induced cytidine deaminase in promotion or prevention of autoimmunity in humans". Autoimmunity. 46 (2): 148–56. doi:10.3109/08916934.2012.750299. PMC 4077434. PMID 23215867.

[pmid18716662-56] Hase K, Takahashi D, Ebisawa M, Kawano S, Itoh K, Ohno H (August 2008). "Activation-induced cytidine deaminase deficiency causes organ-specific autoimmune disease". PLoS ONE. 3 (8): e3033. doi:10.1371/journal.pone.0003033. PMC 2515643. PMID 18716662.

[pmid12369930-57] Caradonna S, Muller-Weeks S (December 2001). "The nature of enzymes involved in uracil-DNA repair: isoform characteristics of proteins responsible for nuclear and mitochondrial genomic integrity". Curr. Protein Pept. Sci. 2 (4): 335–47. PMID 12369930.

[pmid12958596-58] Imai K, Slupphaug G, Lee WI, Revy P, Nonoyama S, Catalan N, Yel L, Forveille M, Kavli B, Krokan HE, Ochs HD, Fischer A, Durandy A (October 2003). "Human uracil-DNA glycosylase deficiency associated with profoundly impaired immunoglobulin class-switch recombination". Nat. Immunol. 4 (10): 1023–8. doi:10.1038/ni974. PMID 12958596.

[pmid20180797-59] Davies EG, Thrasher AJ (April 2010). "Update on the hyper immunoglobulin M syndromes". Br. J. Haematol. 149 (2): 167–80. doi:10.1111/j.1365-2141.2010.08077.x. PMC 2855828. PMID 20180797.

[pmid25312759-60] Kracker S, Di Virgilio M, Schwartzentruber J, Cuenin C, Forveille M, Deau MC, McBride KM, Majewski J, Gazumyan A, Seneviratne S, Grimbacher B, Kutukculer N, Herceg Z, Cavazzana M, Jabado N, Nussenzweig MC, Fischer A, Durandy A (April 2015). "An inherited immunoglobulin class-switch recombination deficiency associated with a defect in the INO80 chromatin remodeling complex". J. Allergy Clin. Immunol. 135 (4): 998–1007.e6. doi:10.1016/j.jaci.2014.08.030. PMC 4382329. PMID 25312759.

[pmid22250089-61] Gardès P, Forveille M, Alyanakian MA, Aucouturier P, Ilencikova D, Leroux D, Rahner N, Mazerolles F, Fischer A, Kracker S, Durandy A (February 2012). "Human MSH6 deficiency is associated with impaired antibody maturation". J. Immunol. 188 (4): 2023–9. doi:10.4049/jimmunol.1102984. PMID 22250089.

[pmid20101521-62] 62.0 ^62.1 ^62.2 Yel L (January 2010). "Selective IgA deficiency". J. Clin. Immunol. 30 (1): 10–6. doi:10.1007/s10875-009-9357-x. PMC 2821513. PMID 20101521.

[pmid10370371-63] Wang Z, Yunis D, Irigoyen M, Kitchens B, Bottaro A, Alt FW, Alper CA (June 1999). "Discordance between IgA switching at the DNA level and IgA expression at the mRNA level in IgA-deficient patients". Clin. Immunol. 91 (3): 263–70. doi:10.1006/clim.1999.4702. PMID 10370371.

[pmid6973088-64] Conley ME, Cooper MD (August 1981). "Immature IgA B cells in IgA-deficient patients". N. Engl. J. Med. 305 (9): 495–7. doi:10.1056/NEJM198108273050905. PMID 6973088.

[pmid2858666-65] Hammarström L, Lönnqvist B, Ringdén O, Smith CI, Wiebe T (April 1985). "Transfer of IgA deficiency to a bone-marrow-grafted patient with aplastic anaemia". Lancet. 1 (8432): 778–81. PMID 2858666.

[pmid9544978-66] Rogers RL, Javed TA, Ross RE, Virella G, Stuart RK, Frei-Lahr D (April 1998). "Transfusion management of an IgA deficient patient with anti-IgA and incidental correction of IgA deficiency after allogeneic bone marrow transplantation". Am. J. Hematol. 57 (4): 326–30. PMID 9544978.</re
Patient with severe IgA deficiency can have anaphylactic reactions secondary to blood transfusion or its products. It is specifically seen in patients with undetectable serum IgA levels. These patients develop anti IgA antibodies so they should be advised to wear medical alert bracelet.<ref name="pmid17137841">Horn J, Thon V, Bartonkova D, Salzer U, Warnatz K, Schlesier M, Peter HH, Grimbacher B (February 2007). "Anti-IgA antibodies in common variable immunodeficiency (CVID): diagnostic workup and therapeutic strategy". Clin. Immunol. 122 (2): 156–62. doi:10.1016/j.clim.2006.10.002. PMID 17137841.

[67] Patient with severe IgA deficiency can have anaphylactic reactions secondary to blood transfusion or its products. It is specifically seen in patients with undetectable serum IgA levels. These patients develop anti IgA antibodies so they should be advised to wear medical alert bracelet.<ref name="pmid17137841">Horn J, Thon V, Bartonkova D, Salzer U, Warnatz K, Schlesier M, Peter HH, Grimbacher B (February 2007). "Anti-IgA antibodies in common variable immunodeficiency (CVID): diagnostic workup and therapeutic strategy". Clin. Immunol. 122 (2): 156–62. doi:10.1016/j.clim.2006.10.002. PMID 17137841.

[pmid3945295-67] Burks AW, Sampson HA, Buckley RH (February 1986). "Anaphylactic reactions after gamma globulin administration in patients with hypogammaglobulinemia. Detection of IgE antibodies to IgA". N. Engl. J. Med. 314 (9): 560–4. doi:10.1056/NEJM198602273140907. PMID 3945295.

[pmid26853951-68] Sala P, Colatutto A, Fabbro D, Mariuzzi L, Marzinotto S, Toffoletto B, Perosa AR, Damante G (April 2016). "Immunoglobulin K light chain deficiency: A rare, but probably underestimated, humoral immune defect". Eur J Med Genet. 59 (4): 219–22. doi:10.1016/j.ejmg.2016.02.003. PMID 26853951.

[pmid815819-69] Zegers BJ, Maertzdorf WJ, Van Loghem E, Mul NA, Stoop JW, Van Der Laag J, Vossen JJ, Ballieux RE (May 1976). "Kappa-chain deficiency. An immunoglobulin disorder". N. Engl. J. Med. 294 (19): 1026–30. doi:10.1056/NEJM197605062941902. PMID 815819.

[pmid3931219-70] Stavnezer-Nordgren J, Kekish O, Zegers BJ (October 1985). "Molecular defects in a human immunoglobulin kappa chain deficiency". Science. 230 (4724): 458–61. PMID 3931219.

[pmid4168495-71] Hobbs JR, Milner RD, Watt PJ (December 1967). "Gamma-M deficiency predisposing to meningococcal septicaemia". Br Med J. 4 (5579): 583–6. PMC 1749295. PMID 4168495.

[pmid28928736-72] Gupta S, Gupta A (2017). "Selective IgM Deficiency-An Underestimated Primary Immunodeficiency". Front Immunol. 8: 1056. doi:10.3389/fimmu.2017.01056. PMC 5591887. PMID 28928736.

[pmid23760686-73] Louis AG, Gupta S (April 2014). "Primary selective IgM deficiency: an ignored immunodeficiency". Clin Rev Allergy Immunol. 46 (2): 104–11. doi:10.1007/s12016-013-8375-x. PMID 23760686.

[pmid23374270-74] Stepensky P, Keller B, Buchta M, Kienzler AK, Elpeleg O, Somech R, Cohen S, Shachar I, Miosge LA, Schlesier M, Fuchs I, Enders A, Eibel H, Grimbacher B, Warnatz K (February 2013). "Deficiency of caspase recruitment domain family, member 11 (CARD11), causes profound combined immunodeficiency in human subjects". J. Allergy Clin. Immunol. 131 (2): 477–85.e1. doi:10.1016/j.jaci.2012.11.050. PMID 23374270.

[pmid23129749-75] Snow AL, Xiao W, Stinson JR, Lu W, Chaigne-Delalande B, Zheng L, Pittaluga S, Matthews HF, Schmitz R, Jhavar S, Kuchen S, Kardava L, Wang W, Lamborn IT, Jing H, Raffeld M, Moir S, Fleisher TA, Staudt LM, Su HC, Lenardo MJ (November 2012). "Congenital B cell lymphocytosis explained by novel germline CARD11 mutations". J. Exp. Med. 209 (12): 2247–61. doi:10.1084/jem.20120831. PMC 3501355. PMID 23129749.

[pmid26406182-76] Arjunaraja S, Snow AL (December 2015). "Gain-of-function mutations and immunodeficiency: at a loss for proper tuning of lymphocyte signaling". Curr Opin Allergy Clin Immunol. 15 (6): 533–8. doi:10.1097/ACI.0000000000000217. PMC 4672729. PMID 26406182.

[pmid18323416-77] Lenz G, Davis RE, Ngo VN, Lam L, George TC, Wright GW, Dave SS, Zhao H, Xu W, Rosenwald A, Ott G, Muller-Hermelink HK, Gascoyne RD, Connors JM, Rimsza LM, Campo E, Jaffe ES, Delabie J, Smeland EB, Fisher RI, Chan WC, Staudt LM (March 2008). "Oncogenic CARD11 mutations in human diffuse large B cell lymphoma". Science. 319 (5870): 1676–9. doi:10.1126/science.1153629. PMID 18323416.

[pmid25087226-78] Turvey SE, Durandy A, Fischer A, Fung SY, Geha RS, Gewies A, Giese T, Greil J, Keller B, McKinnon ML, Neven B, Rozmus J, Ruland J, Snow AL, Stepensky P, Warnatz K (August 2014). "The CARD11-BCL10-MALT1 (CBM) signalosome complex: Stepping into the limelight of human primary immunodeficiency". J. Allergy Clin. Immunol. 134 (2): 276–84. doi:10.1016/j.jaci.2014.06.015. PMC 4167767. PMID 25087226.

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@@ Line 2: / Line 2: @@
 {{ID}}
-{{CMG}}; {{AE}} {{Akram}}, {{Anmol}}
+{{CMG}}; {{AE}} {{Preeti}}, {{Akram}}, {{Anmol}}
 ==Overview==
+Predominantly antibody deficiencies (PAD) are the most common type of [[primary immunodeficiency diseases]] (PID). PAD is a large group of diseases which may vary widely from having a complete absence of [[B cells]] and decrease in all [[immunoglobulins]] to having deficiency in specific [[immunoglobulins]]. Depending on the phenotype, [[agammaglobulinemia]] or [[CVID]], patients can present either in infancy or adulthood.The main clinical characteristic of patients with PAD is recurrent bacterial infections, low levels of [[immunoglobulin]] (ranging from [[agammaglobulinemia]] to [[hypogammaglobulinemia]]), and impaired response to [[vaccines]] and antigens. Treatment is by intravenous or subcutaneous [[immunoglobulins]] and treatment of infections by [[antibiotics]].
 ==Classification==
@@ Line 76: / Line 77: @@
 ==X-linked Agammaglobulinemia==
-It is an X linked disease first described by Bruton in 1952.It is caused by the [[mutation]] of BTK gene (present on the long arm of X chromosome) which encodes for the protein Bruton tyrosine kinase,<ref name="pmid24909997">{{cite journal |vauthors=Hernandez-Trujillo VP, Scalchunes C, Cunningham-Rundles C, Ochs HD, Bonilla FA, Paris K, Yel L, Sullivan KE |title=Autoimmunity and inflammation in X-linked agammaglobulinemia |journal=J. Clin. Immunol. |volume=34 |issue=6 |pages=627–32 |date=August 2014 |pmid=24909997 |pmc=4157090 |doi=10.1007/s10875-014-0056-x |url=}}</ref>which is mainly associated with the maturation and differentiation of the pre B cell. The disruption of this protein can therefore lead to significant decrease in all antibody isotypes, due to failure of Ig heavy chain rearrangement. <ref name="pmid8070812">{{cite journal |vauthors=Rawlings DJ, Witte ON |title=Bruton's tyrosine kinase is a key regulator in B-cell development |journal=Immunol. Rev. |volume=138 |issue= |pages=105–19 |date=April 1994 |pmid=8070812 |doi= |url=}}</ref>
+*It is an X linked disease, first described by Bruton in 1952.
+*It is caused by the [[mutation]] of [[BTK gene]] (present on the long arm of X chromosome) which encodes for the protein [[Bruton tyrosine kinase]],which is associated with the maturation and differentiation of the pre B cell.<ref name="pmid24909997">{{cite journal |vauthors=Hernandez-Trujillo VP, Scalchunes C, Cunningham-Rundles C, Ochs HD, Bonilla FA, Paris K, Yel L, Sullivan KE |title=Autoimmunity and inflammation in X-linked agammaglobulinemia |journal=J. Clin. Immunol. |volume=34 |issue=6 |pages=627–32 |date=August 2014 |pmid=24909997 |pmc=4157090 |doi=10.1007/s10875-014-0056-x |url=}}</ref>
+*The disruption of this protein can lead to significant decrease in all [[antibody]] isotypes, due to failure of Ig heavy chain rearrangement.<ref name="pmid8070812">{{cite journal |vauthors=Rawlings DJ, Witte ON |title=Bruton's tyrosine kinase is a key regulator in B-cell development |journal=Immunol. Rev. |volume=138 |issue= |pages=105–19 |date=April 1994 |pmid=8070812 |doi= |url=}}</ref>
 *Affected individuals generally present between 3 months to 3 years of age, with almost 90% becoming symptomatic by 5 years of age.<ref name="pmid16862044">{{cite journal |vauthors=Winkelstein JA, Marino MC, Lederman HM, Jones SM, Sullivan K, Burks AW, Conley ME, Cunningham-Rundles C, Ochs HD |title=X-linked agammaglobulinemia: report on a United States registry of 201 patients |journal=Medicine (Baltimore) |volume=85 |issue=4 |pages=193–202 |date=July 2006 |pmid=16862044 |doi=10.1097/01.md.0000229482.27398.ad |url=}}</ref>
 *Presence of maternal [[immunoglobulins]] provide transient protection, concealing symptoms of the disease and preventing early detection.
-*Physical examination typically shows absence of lymph nodes.
+*Physical examination typically shows absence of [[Lymph node|lymph nodes]].
-*Patients are susceptible to recurrent infections with encapsulated organisms and enteroviruses, primarily effecting respiratory and gastrointestinal tracts.
+*Patients are susceptible to recurrent infections with [[Polysaccharide encapsulated bacteria|encapsulated organisms]] and [[Enterovirus|enteroviruses]], primarily effecting respiratory and gastrointestinal tracts.
-*Laboratory findings show defect in [[humoral immunity]] with absence or negligible amount of IgM, IgG, and IgA, as well as <2% of B cells lymphocytes. Neutropenia can also be seen.<ref name="pmid19597006">{{cite journal |vauthors=Fried AJ, Bonilla FA |title=Pathogenesis, diagnosis, and management of primary antibody deficiencies and infections |journal=Clin. Microbiol. Rev. |volume=22 |issue=3 |pages=396–414 |date=July 2009 |pmid=19597006 |pmc=2708392 |doi=10.1128/CMR.00001-09 |url=}}</ref> <ref name="pmid24909997">{{cite journal |vauthors=Hernandez-Trujillo VP, Scalchunes C, Cunningham-Rundles C, Ochs HD, Bonilla FA, Paris K, Yel L, Sullivan KE |title=Autoimmunity and inflammation in X-linked agammaglobulinemia |journal=J. Clin. Immunol. |volume=34 |issue=6 |pages=627–32 |date=August 2014 |pmid=24909997 |pmc=4157090 |doi=10.1007/s10875-014-0056-x |url=}}</ref><ref name="pmid24215410">{{cite journal |vauthors=Berglöf A, Turunen JJ, Gissberg O, Bestas B, Blomberg KE, Smith CI |title=Agammaglobulinemia: causative mutations and their implications for novel therapies |journal=Expert Rev Clin Immunol |volume=9 |issue=12 |pages=1205–21 |date=December 2013 |pmid=24215410 |doi=10.1586/1744666X.2013.850030 |url=}}</ref>
+*Laboratory findings show defect in [[humoral immunity]] with absence or negligible amount of [[IgM]], [[Immunoglobulin G|IgG]], and [[Immunoglobulin A|IgA]], as well as <2% of B cells lymphocytes. Neutropenia can also be seen.<ref name="pmid19597006">{{cite journal |vauthors=Fried AJ, Bonilla FA |title=Pathogenesis, diagnosis, and management of primary antibody deficiencies and infections |journal=Clin. Microbiol. Rev. |volume=22 |issue=3 |pages=396–414 |date=July 2009 |pmid=19597006 |pmc=2708392 |doi=10.1128/CMR.00001-09 |url=}}</ref><ref name="pmid24909997">{{cite journal |vauthors=Hernandez-Trujillo VP, Scalchunes C, Cunningham-Rundles C, Ochs HD, Bonilla FA, Paris K, Yel L, Sullivan KE |title=Autoimmunity and inflammation in X-linked agammaglobulinemia |journal=J. Clin. Immunol. |volume=34 |issue=6 |pages=627–32 |date=August 2014 |pmid=24909997 |pmc=4157090 |doi=10.1007/s10875-014-0056-x |url=}}</ref><ref name="pmid24215410">{{cite journal |vauthors=Berglöf A, Turunen JJ, Gissberg O, Bestas B, Blomberg KE, Smith CI |title=Agammaglobulinemia: causative mutations and their implications for novel therapies |journal=Expert Rev Clin Immunol |volume=9 |issue=12 |pages=1205–21 |date=December 2013 |pmid=24215410 |doi=10.1586/1744666X.2013.850030 |url=}}</ref>
-*Treatment is mainly via  haematopoietic stem cell therapy and through replacement of immunoglobulins either by intravenous or subcutaneous routes. Recurrent infections are  prevented and treated by antibiotics.<ref name="pmid21466548">{{cite journal |vauthors=Cunningham-Rundles C |title=Key aspects for successful immunoglobulin therapy of primary immunodeficiencies |journal=Clin. Exp. Immunol. |volume=164 Suppl 2 |issue= |pages=16–9 |date=June 2011 |pmid=21466548 |pmc=3087906 |doi=10.1111/j.1365-2249.2011.04390.x |url=}}</ref>
+*Treatment is mainly via  [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and through replacement of [[immunoglobulins]] either by intravenous or subcutaneous routes. Recurrent infections are  prevented and treated by [[Antibiotic|antibiotics]].<ref name="pmid21466548">{{cite journal |vauthors=Cunningham-Rundles C |title=Key aspects for successful immunoglobulin therapy of primary immunodeficiencies |journal=Clin. Exp. Immunol. |volume=164 Suppl 2 |issue= |pages=16–9 |date=June 2011 |pmid=21466548 |pmc=3087906 |doi=10.1111/j.1365-2249.2011.04390.x |url=}}</ref>
 For more information on [[X-linked agammaglobulinemia]], [[X-linked agammaglobulinemia|click here]].
 ==µ Heavy Chain Deficiency==
-*[[Autosomal recessive]] (AR) transmission.
+*µ heavy chain deficiency has [[Autosomal recessive]] (AR) transmission.
-*It is caused by mutation of µ heavy chain(IGHM) on chromosome 14.  <ref name="pmid8890099">{{cite journal |vauthors=Yel L, Minegishi Y, Coustan-Smith E, Buckley RH, Trübel H, Pachman LM, Kitchingman GR, Campana D, Rohrer J, Conley ME |title=Mutations in the mu heavy-chain gene in patients with agammaglobulinemia |journal=N. Engl. J. Med. |volume=335 |issue=20 |pages=1486–93 |date=November 1996 |pmid=8890099 |doi=10.1056/NEJM199611143352003 |url=}}</ref>
+*It is caused by mutation of µ heavy chain (IGHM) on [[chromosome]] 14.<ref name="pmid8890099">{{cite journal |vauthors=Yel L, Minegishi Y, Coustan-Smith E, Buckley RH, Trübel H, Pachman LM, Kitchingman GR, Campana D, Rohrer J, Conley ME |title=Mutations in the mu heavy-chain gene in patients with agammaglobulinemia |journal=N. Engl. J. Med. |volume=335 |issue=20 |pages=1486–93 |date=November 1996 |pmid=8890099 |doi=10.1056/NEJM199611143352003 |url=}}</ref>
-*This mutation is phenotypically similar to [[X-linked agammaglobulinemia]], but unlike [[X-linked agammagloulinemia]] can also be seen in females, yet there has been a study that provides data showing clinically significant difference between the two.<ref name="pmid26910880">{{cite journal |vauthors=Abolhassani H, Vitali M, Lougaris V, Giliani S, Parvaneh N, Parvaneh L, Mirminachi B, Cheraghi T, Khazaei H, Mahdaviani SA, Kiaei F, Tavakolinia N, Mohammadi J, Negahdari B, Rezaei N, Hammarstrom L, Plebani A, Aghamohammadi A |title=Cohort of Iranian Patients with Congenital Agammaglobulinemia: Mutation Analysis and Novel Gene Defects |journal=Expert Rev Clin Immunol |volume=12 |issue=4 |pages=479–86 |date=2016 |pmid=26910880 |doi=10.1586/1744666X.2016.1139451 |url=}}</ref>
+*This mutation is phenotypically similar to [[X-linked agammaglobulinemia]], but unlike [[X-linked agammaglobulinemia]] can also be seen in females, yet there has been a study that provides data showing clinically significant difference between the two.<ref name="pmid26910880">{{cite journal |vauthors=Abolhassani H, Vitali M, Lougaris V, Giliani S, Parvaneh N, Parvaneh L, Mirminachi B, Cheraghi T, Khazaei H, Mahdaviani SA, Kiaei F, Tavakolinia N, Mohammadi J, Negahdari B, Rezaei N, Hammarstrom L, Plebani A, Aghamohammadi A |title=Cohort of Iranian Patients with Congenital Agammaglobulinemia: Mutation Analysis and Novel Gene Defects |journal=Expert Rev Clin Immunol |volume=12 |issue=4 |pages=479–86 |date=2016 |pmid=26910880 |doi=10.1586/1744666X.2016.1139451 |url=}}</ref>
-*Treatment is mainly via replacement of immunoglobulins by intravenous or subcutaneous routes, haematopoietic stem cell therapy and use of prophylactic and curative [[antibiotics]].<ref name="pmid1330145">{{cite journal |vauthors=Bardakhch'ian EA, Makliakov IuS, Karkishchenko NN, Kharlanova NG |title=[Benzodiazepine receptors of the neurons and astrocytes] |language=Russian |journal=Eksp Klin Farmakol |volume=55 |issue=2 |pages=6–9 |date=1992 |pmid=1330145 |doi= |url=}}</ref>
+*Treatment is mainly via replacement of [[immunoglobulins]] by intravenous or subcutaneous routes, [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and use of prophylactic and curative [[antibiotics]].<ref name="pmid21466548">{{cite journal |vauthors=Cunningham-Rundles C |title=Key aspects for successful immunoglobulin therapy of primary immunodeficiencies |journal=Clin. Exp. Immunol. |volume=164 Suppl 2 |issue= |pages=16–9 |date=June 2011 |pmid=21466548 |pmc=3087906 |doi=10.1111/j.1365-2249.2011.04390.x |url=}}</ref>
 ==Igα Deficiency==
-*[[Autosomal recessive]] (AR) transmission.
+*Igα Deficiency has [[autosomal recessive]] (AR) transmission.
-*Mutation of Igα(CD79α) a component of [[B cell receptor]](BCR). Mutations in Pre-BCR complex many times lead to truncation of [[B cell]] development.
+*Mutation of Igα(CD79α) a component of [[B cell receptor]] (BCR). Mutations in pre-BCR complex many times lead to truncation of [[B cell]] development.
-*It causes a B cell defect which leads to a clinical picture similar to [[X-linked agammagloulinemia]].
+*It causes a [[B cell]] defect which leads to a clinical picture similar to [[X-linked agammaglobulinemia]].
-* Patients have increased susceptibility to bacterial infections and [[otitis media]].
+* Patients have increased susceptibility to [[bacterial]] infections and [[otitis media]].
-* Diagnosis is mainly by [[polymerase chain reaction]] (PCR) or [[single starnd conformational polymosrphism analysis]](SSCA).<ref name="pmid11920841">{{cite journal |vauthors=Wang Y, Kanegane H, Sanal O, Tezcan I, Ersoy F, Futatani T, Miyawaki T |title=Novel Igalpha (CD79a) gene mutation in a Turkish patient with B cell-deficient agammaglobulinemia |journal=Am. J. Med. Genet. |volume=108 |issue=4 |pages=333–6 |date=April 2002 |pmid=11920841 |doi= |url=}}</ref>
+* Diagnosis is mainly by [[polymerase chain reaction]] (PCR) or single strand conformational polymosrphism analysis(SSCA).<ref name="pmid11920841">{{cite journal |vauthors=Wang Y, Kanegane H, Sanal O, Tezcan I, Ersoy F, Futatani T, Miyawaki T |title=Novel Igalpha (CD79a) gene mutation in a Turkish patient with B cell-deficient agammaglobulinemia |journal=Am. J. Med. Genet. |volume=108 |issue=4 |pages=333–6 |date=April 2002 |pmid=11920841 |doi= |url=}}</ref>
-*Treatment is mainly through replacement of immunoglobulins by intravenous or subcutaneous routes, haematopoietic stem cell therapy and use of prophylactic and curative [[antibiotics]].<ref name="pmid1330145">{{cite journal |vauthors=Bardakhch'ian EA, Makliakov IuS, Karkishchenko NN, Kharlanova NG |title=[Benzodiazepine receptors of the neurons and astrocytes] |language=Russian |journal=Eksp Klin Farmakol |volume=55 |issue=2 |pages=6–9 |date=1992 |pmid=1330145 |doi= |url=}}</ref>
+*Treatment is mainly through replacement of [[immunoglobulins]] by intravenous or subcutaneous routes, [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and use of prophylactic and curative [[antibiotics]].<ref name="pmid21276714">{{cite journal |vauthors=Maarschalk-Ellerbroek LJ, Hoepelman IM, Ellerbroek PM |title=Immunoglobulin treatment in primary antibody deficiency |journal=Int. J. Antimicrob. Agents |volume=37 |issue=5 |pages=396–404 |date=May 2011 |pmid=21276714 |doi=10.1016/j.ijantimicag.2010.11.027 |url=}}</ref>.
 ==Igβ Deficiency==
-*[[Autosomal recessive]] (AR) transmission.
+*Igβ deficiency has [[autosomal recessive]] (AR) transmission.
+*Caused by mutation in the CD79B gene on [[chromosome]] 17.
+*Igβ is a signal transduction molecule similar to Igα and is essential for [[B cell receptor]](BCR) expression.
+*Patients generally present with reduced [[immunoglobulins]] which leads to frequent bacterial infections of upper and lower respiratory tract similar to other [[X-linked agammaglobulinemia|agammaglobulinemia]] like [[X-linked agammaglobulinemia]].<ref name="pmid17709424">{{cite journal |vauthors=Ferrari S, Lougaris V, Caraffi S, Zuntini R, Yang J, Soresina A, Meini A, Cazzola G, Rossi C, Reth M, Plebani A |title=Mutations of the Igbeta gene cause agammaglobulinemia in man |journal=J. Exp. Med. |volume=204 |issue=9 |pages=2047–51 |date=September 2007 |pmid=17709424 |pmc=2118692 |doi=10.1084/jem.20070264 |url=}}</ref><ref name="pmid17675462">{{cite journal |vauthors=Dobbs AK, Yang T, Farmer D, Kager L, Parolini O, Conley ME |title=Cutting edge: a hypomorphic mutation in Igbeta (CD79b) in a patient with immunodeficiency and a leaky defect in B cell development |journal=J. Immunol. |volume=179 |issue=4 |pages=2055–9 |date=August 2007 |pmid=17675462 |doi= |url=}}</ref>
+*Treatment is mainly via replacement of [[immunoglobulins]] by intravenous or subcutaneous route,  [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and use of prophylactic and curative [[antibiotics]].<ref name="pmid17675462">{{cite journal |vauthors=Dobbs AK, Yang T, Farmer D, Kager L, Parolini O, Conley ME |title=Cutting edge: a hypomorphic mutation in Igbeta (CD79b) in a patient with immunodeficiency and a leaky defect in B cell development |journal=J. Immunol. |volume=179 |issue=4 |pages=2055–9 |date=August 2007 |pmid=17675462 |doi= |url=}}</ref>
 ==BLNK Deficiency==
-*[[Autosomal recessive]] (AR) transmission.
+*BLNK deficiency has [[autosomal recessive]] (AR) transmission.
-*BLNK gene on [[chromosome]] 10 encodes for B cell linker protein (BLNK, SLC-65) and is crucial for the development of pre B cell.
+*BLNK gene on [[chromosome]] 10 encodes for a scaffold molecule B cell linker protein (BLNK, SLC-65) and is crucial for the development of pre B cell.
+*Patients generally present with recurrent [[Bacteria|bacterial]] infections, [[otitis media]] and upper and lower respiratory tract infections similar to [[X-linked agammaglobulinemia]].<ref name="pmid10583958">{{cite journal |vauthors=Minegishi Y, Rohrer J, Coustan-Smith E, Lederman HM, Pappu R, Campana D, Chan AC, Conley ME |title=An essential role for BLNK in human B cell development |journal=Science |volume=286 |issue=5446 |pages=1954–7 |date=December 1999 |pmid=10583958 |doi= |url=}}</ref>
+*Treatment is mainly via replacement of [[immunoglobulins]] by intravenous or subcutaneous routes, [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and use of prophylactic and curative [[antibiotics]].<ref name="pmid21276714">{{cite journal |vauthors=Maarschalk-Ellerbroek LJ, Hoepelman IM, Ellerbroek PM |title=Immunoglobulin treatment in primary antibody deficiency |journal=Int. J. Antimicrob. Agents |volume=37 |issue=5 |pages=396–404 |date=May 2011 |pmid=21276714 |doi=10.1016/j.ijantimicag.2010.11.027 |url=}}</ref>
 ==λ5 Deficiency==
-*[[Autosomal recessive]] (AR) transmission.
+*λ5 deficiency has [[autosomal recessive]] (AR) transmission..
-* λ5(IGLL1) coponent of B cell receptor mutation.
+*It is caused by mutation of λ5 (IGLL1), component of [[B cell receptor]], on [[chromosome]] 22.
-*Leads to clinical features similar to [[X-linked agammagloulinemia]].
+*Leads to clinical features similar to [[X-linked agammaglobulinemia]].<ref name="pmid9419212">{{cite journal |vauthors=Minegishi Y, Coustan-Smith E, Wang YH, Cooper MD, Campana D, Conley ME |title=Mutations in the human lambda5/14.1 gene result in B cell deficiency and agammaglobulinemia |journal=J. Exp. Med. |volume=187 |issue=1 |pages=71–7 |date=January 1998 |pmid=9419212 |pmc=2199185 |doi= |url=}}</ref>
+*Treatment is mainly through replacement of [[immunoglobulins]] by intravenous or subcutaneous routes, [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and use of prophylactic and curative [[antibiotics]].<ref name="pmid21276714">{{cite journal |vauthors=Maarschalk-Ellerbroek LJ, Hoepelman IM, Ellerbroek PM |title=Immunoglobulin treatment in primary antibody deficiency |journal=Int. J. Antimicrob. Agents |volume=37 |issue=5 |pages=396–404 |date=May 2011 |pmid=21276714 |doi=10.1016/j.ijantimicag.2010.11.027 |url=}}</ref>
+==PI3KR1 Deficiency==
+* PIK3R1 gene encodes for the p85α subunit of class IA phosphoinositide 3-kinases (PI3Ks).<ref name="pmid25133428">{{cite journal |vauthors=Deau MC, Heurtier L, Frange P, Suarez F, Bole-Feysot C, Nitschke P, Cavazzana M, Picard C, Durandy A, Fischer A, Kracker S |title=A human immunodeficiency caused by mutations in the PIK3R1 gene |journal=J. Clin. Invest. |volume=124 |issue=9 |pages=3923–8 |date=September 2014 |pmid=25133428 |pmc=4153704 |doi=10.1172/JCI75746 |url=}}</ref>
+*Patients present with history of recurrent [[Bacteria|bacterial]] infections and positive family history, similar to clinical features seen in [[X-linked agammaglobulinemia]].<ref name="pmid7705412">{{cite journal |vauthors=de la Morena M, Haire RN, Ohta Y, Nelson RP, Litman RT, Day NK, Good RA, Litman GW |title=Predominance of sterile immunoglobulin transcripts in a female phenotypically resembling Bruton's agammaglobulinemia |journal=Eur. J. Immunol. |volume=25 |issue=3 |pages=809–15 |date=March 1995 |pmid=7705412 |doi=10.1002/eji.1830250327 |url=}}</ref>
+*Treatment is mainly through replacement of [[immunoglobulins]] by intravenous or subcutaneous routes, [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and use of prophylactic and curative [[antibiotics]].<ref name="pmid21276714">{{cite journal |vauthors=Maarschalk-Ellerbroek LJ, Hoepelman IM, Ellerbroek PM |title=Immunoglobulin treatment in primary antibody deficiency |journal=Int. J. Antimicrob. Agents |volume=37 |issue=5 |pages=396–404 |date=May 2011 |pmid=21276714 |doi=10.1016/j.ijantimicag.2010.11.027 |url=}}</ref>
+==E47 transcription factor Deficiency==
+*Mutation of E47 transcription factor.
+*This mutation leads to improper differentiation of [[B cell]] from lymphoid precursors.<ref name="pmid24216514">{{cite journal |vauthors=Boisson B, Wang YD, Bosompem A, Ma CS, Lim A, Kochetkov T, Tangye SG, Casanova JL, Conley ME |title=A recurrent dominant negative E47 mutation causes agammaglobulinemia and BCR(-) B cells |journal=J. Clin. Invest. |volume=123 |issue=11 |pages=4781–5 |date=November 2013 |pmid=24216514 |pmc=3809807 |doi=10.1172/JCI71927 |url=}}</ref>
+*Patients present with few [[B cell|B cells]] characterized increased expression of [[CD19]], but without [[B cell receptor]] (BCR).<ref name="pmid21693761">{{cite journal |vauthors=Dobbs AK, Bosompem A, Coustan-Smith E, Tyerman G, Saulsbury FT, Conley ME |title=Agammaglobulinemia associated with BCR⁻ B cells and enhanced expression of CD19 |journal=Blood |volume=118 |issue=7 |pages=1828–37 |date=August 2011 |pmid=21693761 |pmc=3158715 |doi=10.1182/blood-2011-01-330472 |url=}}</ref>
+*Treatment is mainly through replacement of [[immunoglobulins]] by intravenous or subcutaneous routes, [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and use of prophylactic and curative [[antibiotics]].<ref name="pmid21276714">{{cite journal |vauthors=Maarschalk-Ellerbroek LJ, Hoepelman IM, Ellerbroek PM |title=Immunoglobulin treatment in primary antibody deficiency |journal=Int. J. Antimicrob. Agents |volume=37 |issue=5 |pages=396–404 |date=May 2011 |pmid=21276714 |doi=10.1016/j.ijantimicag.2010.11.027 |url=}}</ref>
+==CVID With No Gene Specified==
+*[[Common variable immunodeficiency|Common variable immune deficiency]] ([[Common variable immunodeficiency|CVID]]) is the most common [[Primary immunodeficiency|primary immune deficiency]] presenting in adult patients.
+*Patients show symptoms of disease later in life and the cause is mainly polygenic.<ref name="pmid22236429">{{cite journal |vauthors=Park JH, Resnick ES, Cunningham-Rundles C |title=Perspectives on common variable immune deficiency |journal=Ann. N. Y. Acad. Sci. |volume=1246 |issue= |pages=41–9 |date=December 2011 |pmid=22236429 |pmc=3428018 |doi=10.1111/j.1749-6632.2011.06338.x |url=}}</ref>
+*[[Common variable immunodeficiency|CVID]] is a diagnosis of exclusion due to its varied etiology.
+*The ESID/PAGID criteria is for diagnosis is:
+#Hypogammaglobulinaemia with [[Immunoglobulin G|IgG]] levels two standard deviations below the mean.
+#Impaired [[vaccine]] responses or absent isohemagglutinins.
+#Exclusion of other causes of hypogammaglobulinaemia.
+*Patients are susceptible to recurrent infections, [[autoimmunity]] and malignancy.
+*Treatment is by intravenous or subcutaneous replacement of [[Antibody|immunoglobulins]].<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==PIK3CD mutation,PIK3R1 deficiency==
+*Also known as activated phosphoinositide 3-kinase δ syndrome (APDS).
+*[[Autosomal dominant]] gain of function (GOF) mutation of PIK3CD gene, which encodes for P110δ subunit of [[phosphoinositide 3-kinase]] (PI3K) and loss of function (LOF) mutation of PIK3R1 gene, which encodes the p85α subunit of [[Phosphoinositide 3-kinase|PI3K.]]
+*Mutations in PIK3CD gene leads to clinical features similar to  mutation in PIK3R1 gene.<ref name="pmid25546742">{{cite journal |vauthors=Ochs HD |title=Common variable immunodeficiency (CVID): new genetic insight and unanswered questions |journal=Clin. Exp. Immunol. |volume=178 Suppl 1 |issue= |pages=5–6 |date=December 2014 |pmid=25546742 |pmc=4285471 |doi=10.1111/cei.12491 |url=}}</ref>
+*Patients with mutations of gene for PIK3R1 show characteristics similar to that of patients carrying gain-of-function mutations of PIK3CD gene.
+*Mutations lead to  hyperactive [[Phosphoinositide 3-kinase|PI3K/AKT/mTOR signaling]].<ref name="pmid25133428">{{cite journal |vauthors=Deau MC, Heurtier L, Frange P, Suarez F, Bole-Feysot C, Nitschke P, Cavazzana M, Picard C, Durandy A, Fischer A, Kracker S |title=A human immunodeficiency caused by mutations in the PIK3R1 gene |journal=J. Clin. Invest. |volume=124 |issue=9 |pages=3923–8 |date=September 2014 |pmid=25133428 |pmc=4153704 |doi=10.1172/JCI75746 |url=}}</ref><ref name="pmid27555459">{{cite journal |vauthors=Coulter TI, Chandra A, Bacon CM, Babar J, Curtis J, Screaton N, Goodlad JR, Farmer G, Steele CL, Leahy TR, Doffinger R, Baxendale H, Bernatoniene J, Edgar JD, Longhurst HJ, Ehl S, Speckmann C, Grimbacher B, Sediva A, Milota T, Faust SN, Williams AP, Hayman G, Kucuk ZY, Hague R, French P, Brooker R, Forsyth P, Herriot R, Cancrini C, Palma P, Ariganello P, Conlon N, Feighery C, Gavin PJ, Jones A, Imai K, Ibrahim MA, Markelj G, Abinun M, Rieux-Laucat F, Latour S, Pellier I, Fischer A, Touzot F, Casanova JL, Durandy A, Burns SO, Savic S, Kumararatne DS, Moshous D, Kracker S, Vanhaesebroeck B, Okkenhaug K, Picard C, Nejentsev S, Condliffe AM, Cant AJ |title=Clinical spectrum and features of activated phosphoinositide 3-kinase δ syndrome: A large patient cohort study |journal=J. Allergy Clin. Immunol. |volume=139 |issue=2 |pages=597–606.e4 |date=February 2017 |pmid=27555459 |pmc=5292996 |doi=10.1016/j.jaci.2016.06.021 |url=}}</ref>
+*Disease is characterized by low numbers of naive [[T cell|T cells]], but a larger number of senescent effector T cells.
+*Patients present with upper and lower respiratory tract infections, [[lymphadenopathy]], nodular lymphoid hyperplasia, early-onset [[autoimmunity]], [[Cancer|malignancies]] and recurrent viral infections with [[cytomegalovirus]] (CMV) and [[Epstein Barr virus]] (EBV).<ref name="pmid24165795">{{cite journal |vauthors=Lucas CL, Kuehn HS, Zhao F, Niemela JE, Deenick EK, Palendira U, Avery DT, Moens L, Cannons JL, Biancalana M, Stoddard J, Ouyang W, Frucht DM, Rao VK, Atkinson TP, Agharahimi A, Hussey AA, Folio LR, Olivier KN, Fleisher TA, Pittaluga S, Holland SM, Cohen JI, Oliveira JB, Tangye SG, Schwartzberg PL, Lenardo MJ, Uzel G |title=Dominant-activating germline mutations in the gene encoding the PI(3)K catalytic subunit p110δ result in T cell senescence and human immunodeficiency |journal=Nat. Immunol. |volume=15 |issue=1 |pages=88–97 |date=January 2014 |pmid=24165795 |pmc=4209962 |doi=10.1038/ni.2771 |url=}}</ref>
+*Treatment is via [[sirolimus]] and selective PI3Kδ inhibitors, intavenous and subcutaneous [[Antibody|immunoglobulin]] replacement,  prophylactic antibiotic, and [[Hematopoietic stem cell transplantation|hematopoietic stem cell transplant]].<ref name="pmid29599784">{{cite journal |vauthors=Maccari ME, Abolhassani H, Aghamohammadi A, Aiuti A, Aleinikova O, Bangs C, Baris S, Barzaghi F, Baxendale H, Buckland M, Burns SO, Cancrini C, Cant A, Cathébras P, Cavazzana M, Chandra A, Conti F, Coulter T, Devlin LA, Edgar JDM, Faust S, Fischer A, Garcia-Prat M, Hammarström L, Heeg M, Jolles S, Karakoc-Aydiner E, Kindle G, Kiykim A, Kumararatne D, Grimbacher B, Longhurst H, Mahlaoui N, Milota T, Moreira F, Moshous D, Mukhina A, Neth O, Neven B, Nieters A, Olbrich P, Ozen A, Pachlopnik Schmid J, Picard C, Prader S, Rae W, Reichenbach J, Rusch S, Savic S, Scarselli A, Scheible R, Sediva A, Sharapova SO, Shcherbina A, Slatter M, Soler-Palacin P, Stanislas A, Suarez F, Tucci F, Uhlmann A, van Montfrans J, Warnatz K, Williams AP, Wood P, Kracker S, Condliffe AM, Ehl S |title=Disease Evolution and Response to Rapamycin in Activated Phosphoinositide 3-Kinase δ Syndrome: The European Society for Immunodeficiencies-Activated Phosphoinositide 3-Kinase δ Syndrome Registry |journal=Front Immunol |volume=9 |issue= |pages=543 |date=2018 |pmid=29599784 |pmc=5863269 |doi=10.3389/fimmu.2018.00543 |url=}}</ref>
+==PTEN deficiency==
+*Phosphatase and tensin homolog (PTEN) is an inhibitory component of [[phosphoinositide 3-kinase]] (PI3K) signalling network.<ref name="pmid26827793">{{cite journal |vauthors=Leslie NR, Longy M |title=Inherited PTEN mutations and the prediction of phenotype |journal=Semin. Cell Dev. Biol. |volume=52 |issue= |pages=30–8 |date=April 2016 |pmid=26827793 |doi=10.1016/j.semcdb.2016.01.030 |url=}}</ref>
+*Loss of function mutation of this gene leads to up regulation of [[Phosphoinositide 3-kinase|PI3K/AKT/mTOR pathway]] leading to APDS like [[immunodeficiency]].
+*[[Immunodeficiency]] leads to recurrent infections, [[Cowden syndrome|Cowden disease]] and [[Cancer|malignancies]].
+*Treatment is by intravenous and subcutaneous [[Antibody|immunoglobulin]]  and [[Antibiotic|antibiotics]].<ref name="pmid27426521">{{cite journal |vauthors=Tsujita Y, Mitsui-Sekinaka K, Imai K, Yeh TW, Mitsuiki N, Asano T, Ohnishi H, Kato Z, Sekinaka Y, Zaha K, Kato T, Okano T, Takashima T, Kobayashi K, Kimura M, Kunitsu T, Maruo Y, Kanegane H, Takagi M, Yoshida K, Okuno Y, Muramatsu H, Shiraishi Y, Chiba K, Tanaka H, Miyano S, Kojima S, Ogawa S, Ohara O, Okada S, Kobayashi M, Morio T, Nonoyama S |title=Phosphatase and tensin homolog (PTEN) mutation can cause activated phosphatidylinositol 3-kinase δ syndrome-like immunodeficiency |journal=J. Allergy Clin. Immunol. |volume=138 |issue=6 |pages=1672–1680.e10 |date=December 2016 |pmid=27426521 |doi=10.1016/j.jaci.2016.03.055 |url=}}</ref>
+==CD 81 Deficiency==
+*CD81 is a B cell surface protein (part of [[CD19]] complex) which helps in [[antigen]] recognition.
+*Deficiency is characterized by decreased in number of [[B cell]], [[hypogammaglobulinemia]] , impaired [[antibody]] responses, and absence of [[CD19]] expression on [[B cell|B cells]].
+*Patients present with recurrent  infections of upper and lower respiratory tract.
+*Treatment is mainly through replacement of [[immunoglobulins]] by intravenous or subcutaneous routes, [[Hematopoietic stem cell transplantation|hematopoietic stem cell therapy]] and use of prophylactic and curative [[Antibiotic|antibiotics]].<ref name="pmid20237408">{{cite journal |vauthors=van Zelm MC, Smet J, Adams B, Mascart F, Schandené L, Janssen F, Ferster A, Kuo CC, Levy S, van Dongen JJ, van der Burg M |title=CD81 gene defect in humans disrupts CD19 complex formation and leads to antibody deficiency |journal=J. Clin. Invest. |volume=120 |issue=4 |pages=1265–74 |date=April 2010 |pmid=20237408 |pmc=2846042 |doi=10.1172/JCI39748 |url=}}</ref>
+==TACI Deficiency==
+*Transmembrane activator and calcium-modulator and cyclophilin ligand interactor ([[TACI]]) is a part of tumor necrosis factor family and involved in B cell class switching.
+*Missense mutation of one [[allele]] of [[TNFRSF13B]] gene encoding for TACI leads to [[Common variable immunodeficiency|CVID]] like immunodeficiency.<ref name="pmid16007086">{{cite journal |vauthors=Castigli E, Wilson SA, Garibyan L, Rachid R, Bonilla F, Schneider L, Geha RS |title=TACI is mutant in common variable immunodeficiency and IgA deficiency |journal=Nat. Genet. |volume=37 |issue=8 |pages=829–34 |date=August 2005 |pmid=16007086 |doi=10.1038/ng1601 |url=}}</ref>
+*Patients present with increased susceptibility to encapsulated organisms, [[autoimmunity]], and [[hypogammaglobulinemia]].<ref name="pmid21984806">{{cite journal |vauthors=Tsuji S, Cortesão C, Bram RJ, Platt JL, Cascalho M |title=TACI deficiency impairs sustained Blimp-1 expression in B cells decreasing long-lived plasma cells in the bone marrow |journal=Blood |volume=118 |issue=22 |pages=5832–9 |date=November 2011 |pmid=21984806 |pmc=3228499 |doi=10.1182/blood-2011-05-353961 |url=}}</ref><ref name="pmid23237420">{{cite journal |vauthors=Martinez-Gallo M, Radigan L, Almejún MB, Martínez-Pomar N, Matamoros N, Cunningham-Rundles C |title=TACI mutations and impaired B-cell function in subjects with CVID and healthy heterozygotes |journal=J. Allergy Clin. Immunol. |volume=131 |issue=2 |pages=468–76 |date=February 2013 |pmid=23237420 |pmc=3646641 |doi=10.1016/j.jaci.2012.10.029 |url=}}</ref>
+*Treatment is by intravenous or subcutaneous replacement of [[Antibody|immunoglobulins]].<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==BAFF Receptor Deficiency==
+*Mutation of B-cell activating factor receptor (BAFF-R) prevents maturation of transitional B cell, leading to a CVID type adult onset immunodeficiency.
+*Incomplete maturation leads to [[hypogammaglobulinemia]], but can in a few cases not manifest to clinical disease, with recurrent infections.
+*Patients show varying degrees [[immunodeficiency]] but normal [[Immunoglobulin A|IgA]] levels.<ref name="pmid19666484">{{cite journal |vauthors=Warnatz K, Salzer U, Rizzi M, Fischer B, Gutenberger S, Böhm J, Kienzler AK, Pan-Hammarström Q, Hammarström L, Rakhmanov M, Schlesier M, Grimbacher B, Peter HH, Eibel H |title=B-cell activating factor receptor deficiency is associated with an adult-onset antibody deficiency syndrome in humans |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=106 |issue=33 |pages=13945–50 |date=August 2009 |pmid=19666484 |pmc=2722504 |doi=10.1073/pnas.0903543106 |url=}}</ref><ref name="pmid349534">{{cite journal |vauthors=Woolf N |title=The origins of atherosclerosis |journal=Postgrad Med J |volume=54 |issue=629 |pages=156–62 |date=March 1978 |pmid=349534 |pmc=2425199 |doi= |url=}}</ref>
+*Treatment is by intravenous or subcutaneous replacement of [[Antibody|immunoglobulins]] and by curative [[antibiotics]].<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==TWEAK Deficiency==
+*[[CVID]] like phenotype caused by, an [[autosomal dominant]] transmitted, deficiency in TNF-like weak inducer of apoptosis (TWEAK).
+*Mutation in TWEAK is associated with regulation of [[BAFF receptor|BAFF]] associated [[B cell]] development leading to impaired B cell survival and [[Immunoglobulin class switching|isotype class switching]].
+*[[Disease]] is characterized by recurrent infection and impaired response to [[vaccine|vaccination]].<ref name="pmid23493554">{{cite journal |vauthors=Wang HY, Ma CA, Zhao Y, Fan X, Zhou Q, Edmonds P, Uzel G, Oliveira JB, Orange J, Jain A |title=Antibody deficiency associated with an inherited autosomal dominant mutation in TWEAK |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=110 |issue=13 |pages=5127–32 |date=March 2013 |pmid=23493554 |pmc=3612633 |doi=10.1073/pnas.1221211110 |url=}}</ref>
+*Treatment is by intravenous or subcutaneous replacement of [[Antibody|immunoglobulins]] and by curative [[antibiotics]].<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==MOGS Deficiency==
+*Mannosyl-oligosaccharide glucosidase (MOGS) deficiency  causes a congenital disorder of glycosylation type IIb (CDG-IIb), also known as MOGS-CDG.
+*MOGS deficiency leads to improper processing of [[Antibody|immunoglobulins]], which shortens their half-life in circulation.
+*Few studies show that unlike most antibody deficiencies MOGS deficiency does not lead to clinical features of [[hypogammaglobulinemia]] like recurrent infections.
+*This is because cells with MOGS deficiency have altered [[glycosylation]] which prevents productive infection of multiple enveloped viruses.<ref name="pmid24716661">{{cite journal |vauthors=Sadat MA, Moir S, Chun TW, Lusso P, Kaplan G, Wolfe L, Memoli MJ, He M, Vega H, Kim LJY, Huang Y, Hussein N, Nievas E, Mitchell R, Garofalo M, Louie A, Ireland DC, Grunes C, Cimbro R, Patel V, Holzapfel G, Salahuddin D, Bristol T, Adams D, Marciano BE, Hegde M, Li Y, Calvo KR, Stoddard J, Justement JS, Jacques J, Priel DAL, Murray D, Sun P, Kuhns DB, Boerkoel CF, Chiorini JA, Di Pasquale G, Verthelyi D, Rosenzweig SD |title=Glycosylation, hypogammaglobulinemia, and resistance to viral infections |journal=N. Engl. J. Med. |volume=370 |issue=17 |pages=1615–1625 |date=April 2014 |pmid=24716661 |pmc=4066413 |doi=10.1056/NEJMoa1302846 |url=}}</ref><ref name="pmid25318123">{{cite journal |vauthors=Chang J, Block TM, Guo JT |title=Viral resistance of MOGS-CDG patients implies a broad-spectrum strategy against acute virus infections |journal=Antivir. Ther. (Lond.) |volume=20 |issue=3 |pages=257–9 |date=2015 |pmid=25318123 |pmc=4446249 |doi=10.3851/IMP2907 |url=}}</ref>
+==TTC37 Deficiency==
+*Tetratricopeptide Repeat Domain 37 (TTC37) deficency is an [[autosomal recessive]] disease causing syndromic diarrhea/tricho-hepato-enteric syndrome (SD/THE) which has a similar immune phenotype to [[Common variable immunodeficiency|CVID]].
+*TTC37 is involved in aberrant mRNAs decay.
+*Patient presents in infancy with low [[Immunoglobulin G|IgG]] and poor antigen-stimulation to [[vaccine]].
+*Clinical features show infantile onset refractory diarrhea, hair and facial anomalies.<ref name="pmid25688341">{{cite journal |vauthors=Rider NL, Boisson B, Jyonouchi S, Hanson EP, Rosenzweig SD, Cassanova JL, Orange JS |title=Novel TTC37 Mutations in a Patient with Immunodeficiency without Diarrhea: Extending the Phenotype of Trichohepatoenteric Syndrome |journal=Front Pediatr |volume=3 |issue= |pages=2 |date=2015 |pmid=25688341 |pmc=4311608 |doi=10.3389/fped.2015.00002 |url=}}</ref><ref name="pmid26945392">{{cite journal |vauthors=Lee WI, Huang JL, Chen CC, Lin JL, Wu RC, Jaing TH, Ou LS |title=Identifying Mutations of the Tetratricopeptide Repeat Domain 37 (TTC37) Gene in Infants With Intractable Diarrhea and a Comparison of Asian and Non-Asian Phenotype and Genotype: A Global Case-report Study of a Well-Defined Syndrome With Immunodeficiency |journal=Medicine (Baltimore) |volume=95 |issue=9 |pages=e2918 |date=March 2016 |pmid=26945392 |pmc=4782876 |doi=10.1097/MD.0000000000002918 |url=}}</ref>
+*Treatment is by intravenous or subcutaneous replacement of [[Antibody|immunoglobulins]] and by curative [[antibiotics]].<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==IRF2BP2 Deficiency==
+*Interferon Regulatory Factor 2 Binding Protein 2 (IRF2BP2) mutation leads to impaired differentiation of [[B cells]].
+*Few studies show that most patients with this mutation are diagnosed with [[CVID]] in childhood.
+*Disease is characterized by recurrent infections,low levels of [[Immunoglobulin G|IgG]], [[Immunoglobulin A|IgA]] and [[Immunoglobulin M|IgM]] , and decreased number of memory [[B cell|B cells]]. There is no T cell dysfunction.<ref name="pmid27016798">{{cite journal |vauthors=Keller MD, Pandey R, Li D, Glessner J, Tian L, Henrickson SE, Chinn IK, Monaco-Shawver L, Heimall J, Hou C, Otieno FG, Jyonouchi S, Calabrese L, van Montfrans J, Orange JS, Hakonarson H |title=Mutation in IRF2BP2 is responsible for a familial form of common variable immunodeficiency disorder |journal=J. Allergy Clin. Immunol. |volume=138 |issue=2 |pages=544–550.e4 |date=August 2016 |pmid=27016798 |pmc=4976039 |doi=10.1016/j.jaci.2016.01.018 |url=}}</ref>
+*Treatment is by intravenous or subcutaneous replacement of [[Antibody|immunoglobulins]] and by curative [[antibiotics]].<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==CD19 Deficiency==
+*[[CD19]] surface expression can be absent in cases of homozygous [[CD19]] deficiency or CD81 deficiency.
+*Deficiency leads to impaired formation of [[CD19]] complex and  [[B cell]] development and [[antibody]] response.<ref name="pmid20445561">{{cite journal |vauthors=Artac H, Reisli I, Kara R, Pico-Knijnenburg I, Adin-Çinar S, Pekcan S, Jol-van der Zijde CM, van Tol MJ, Bakker-Jonges LE, van Dongen JJ, van der Burg M, van Zelm MC |title=B-cell maturation and antibody responses in individuals carrying a mutated CD19 allele |journal=Genes Immun. |volume=11 |issue=7 |pages=523–30 |date=October 2010 |pmid=20445561 |doi=10.1038/gene.2010.22 |url=}}</ref>
+*Patients show increased susceptibility to infection, [[hypogammaglobulinemia]] and impaired response to vaccines.<ref name="pmid16672701">{{cite journal |vauthors=van Zelm MC, Reisli I, van der Burg M, Castaño D, van Noesel CJ, van Tol MJ, Woellner C, Grimbacher B, Patiño PJ, van Dongen JJ, Franco JL |title=An antibody-deficiency syndrome due to mutations in the CD19 gene |journal=N. Engl. J. Med. |volume=354 |issue=18 |pages=1901–12 |date=May 2006 |pmid=16672701 |doi=10.1056/NEJMoa051568 |url=}}</ref>
+*Treatment is by intravenous or subcutaneous replacement of [[Antibody|immunoglobulins]] and by curative [[antibiotics]].<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==CD20 Deficiency==
+*[[CD20]] is essential for [[T cell]] independent antibody response.
+*Deficiency of [[CD20]] therefore leads to reduced ability to mount an antibody response.
+*Patients have increased risk of infections by encapsulated bacteria, [[hypogammaglobulinemia]], due to decrease [[somatic hypermutation]], and normal B cell numbers; but a decrease in number of circulating memory [[B cell|B cells]].<ref name="pmid20038800">{{cite journal |vauthors=Kuijpers TW, Bende RJ, Baars PA, Grummels A, Derks IA, Dolman KM, Beaumont T, Tedder TF, van Noesel CJ, Eldering E, van Lier RA |title=CD20 deficiency in humans results in impaired T cell-independent antibody responses |journal=J. Clin. Invest. |volume=120 |issue=1 |pages=214–22 |date=January 2010 |pmid=20038800 |pmc=2798692 |doi=10.1172/JCI40231 |url=}}</ref>
+*Treatment is by intravenous or subcutaneous replacement of [[Antibody|immunoglobulins]] and by curative [[antibiotics]].<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==CD21 Deficiency==
+*CD21 is a receptor for complement C3d which helps in antigen specific response.
+*Patients present with increased susceptibility to infections, decreased [[immunoglobulin class switching]], chronic [[diarrhea]] and [[hypogammaglobulinemia]].
+*Unlike patients with [[CD19]] and [[CD20]] deficiency patients with CD 21 have less sever clinical phenotype, and are able to mount specific [[antibody]] response to [[Vaccine|vaccines]] but not very well with polysaccharide [[Vaccine|vaccines]].<ref name="pmid22035880">{{cite journal |vauthors=Thiel J, Kimmig L, Salzer U, Grudzien M, Lebrecht D, Hagena T, Draeger R, Voelxen N, Völxen N, Bergbreiter A, Jennings S, Gutenberger S, Aichem A, Illges H, Hannan JP, Kienzler AK, Rizzi M, Eibel H, Peter HH, Warnatz K, Grimbacher B, Rump JA, Schlesier M |title Genetic CD21 deficiency is associated with hypogammaglobulinemia |journal=J. Allergy Clin. Immunol. |volume=129 |issue=3 |pages=801–810.e6 |date=March 2012 |pmid=22035880 |doi=10.1016/j.jaci.2011.09.027 |url=}}</ref>
+*Treatment is by curative [[antibiotics]] to treat recurrent infections.<ref name="pmid23859429">{{cite journal |vauthors=Ameratunga R, Woon ST, Gillis D, Koopmans W, Steele R |title=New diagnostic criteria for common variable immune deficiency (CVID), which may assist with decisions to treat with intravenous or subcutaneous immunoglobulin |journal=Clin. Exp. Immunol. |volume=174 |issue=2 |pages=203–11 |date=November 2013 |pmid=23859429 |pmc=3828823 |doi=10.1111/cei.12178 |url=}}</ref>
+==TRNT1 Deficiency==
+*TRNT1 gene encodes for  CCA-adding [[transfer RNA]] nucleotidyl transferase (TRNT1) enzyme, an [[Transfer RNA|tRNA]] processing enzyme.
+*It leads to a childhood syndromic form of congenital [[sideroblastic anemia]] (CSA) associated with [[Humoral immune deficiency|B-cell immunodeficiency]], periodic fevers, and [[Developmental disability|developmental delay]] (SIFD).
+*Disease is characterized by childhood developmental delay, [[neurodegeneration]], [[Seizure|seizures]], [[Sensorineural hearing loss|sensorineural deafness]], and other multi organ anomalies.
+*Treatment is by intravenous [[Antibody|immunoglobulin]], transfusion for [[anemia]] and by [[bone marrow transplantation]].<ref name="pmid27370603">{{cite journal |vauthors=Wedatilake Y, Niazi R, Fassone E, Powell CA, Pearce S, Plagnol V, Saldanha JW, Kleta R, Chong WK, Footitt E, Mills PB, Taanman JW, Minczuk M, Clayton PT, Rahman S |title=TRNT1 deficiency: clinical, biochemical and molecular genetic features |journal=Orphanet J Rare Dis |volume=11 |issue=1 |pages=90 |date=July 2016 |pmid=27370603 |pmc=4930608 |doi=10.1186/s13023-016-0477-0 |url=}}</ref><ref name="pmid23553769">{{cite journal |vauthors=Wiseman DH, May A, Jolles S, Connor P, Powell C, Heeney MM, Giardina PJ, Klaassen RJ, Chakraborty P, Geraghty MT, Major-Cook N, Kannengiesser C, Thuret I, Thompson AA, Marques L, Hughes S, Bonney DK, Bottomley SS, Fleming MD, Wynn RF |title=A novel syndrome of congenital sideroblastic anemia, B-cell immunodeficiency, periodic fevers, and developmental delay (SIFD) |journal=Blood |volume=122 |issue=1 |pages=112–23 |date=July 2013 |pmid=23553769 |pmc=3761334 |doi=10.1182/blood-2012-08-439083 |url=}}</ref>
+==NFKB1 Deficiency==
+*[[NFKB1|Nuclear factor κB subunit 1]] ([[NFKB1]]) plays an important role in [[B cell]] differentiation and function.
+*[[NFKB1]] is essential for [[Antibody|immunoglobulin]] [[Immunoglobulin class switching|class switching]] and deficiency can lead to an hyper-IgM like syndrome with lower [[Immunoglobulin G|IgG]] and [[Immunoglobulin A|IgA]] production.<ref name="pmid11224521">{{cite journal |vauthors=Jain A, Ma CA, Liu S, Brown M, Cohen J, Strober W |title=Specific missense mutations in NEMO result in hyper-IgM syndrome with hypohydrotic ectodermal dysplasia |journal=Nat. Immunol. |volume=2 |issue=3 |pages=223–8 |date=March 2001 |pmid=11224521 |doi=10.1038/85277 |url=}}</ref>
+*Sporadic or familial loss of function mutations of [[NFKB1]] leads to progressive [[Humoral immunity|humoral]] immunodeficiency, with a highly variable clinical spectrum.
+*It is considered the most common known monogenic cause of [[CVID]] .
+*Patients present with [[hypogammaglobulinemia]], recurrent upper and lower respiratory tract infections, as well as non-infectious complications like [[lymphadenopathy]], [[splenomegaly|splenomegaly,]] [[autoimmunity]] and rarely [[Cancer|malignancy]].
+*Individually usually require lifelong followup.
+*Patients are treated with replacement [[Antibody|immunoglobulins]] depending on severity of [[antibody]] deficiency.<ref name="pmid29477724">{{cite journal |vauthors=Tuijnenburg P, Lango Allen H, Burns SO, Greene D, Jansen MH, Staples E, Stephens J, Carss KJ, Biasci D, Baxendale H, Thomas M, Chandra A, Kiani-Alikhan S, Longhurst HJ, Seneviratne SL, Oksenhendler E, Simeoni I, de Bree GJ, Tool ATJ, van Leeuwen EMM, Ebberink EHTM, Meijer AB, Tuna S, Whitehorn D, Brown M, Turro E, Thrasher AJ, Smith KGC, Thaventhiran JE, Kuijpers TW |title=Loss-of-function nuclear factor κB subunit 1 (NFKB1) variants are the most common monogenic cause of common variable immunodeficiency in Europeans |journal=J. Allergy Clin. Immunol. |volume=142 |issue=4 |pages=1285–1296 |date=October 2018 |pmid=29477724 |pmc=6148345 |doi=10.1016/j.jaci.2018.01.039 |url=}}</ref><ref name="pmid26279205">{{cite journal |vauthors=Fliegauf M, Bryant VL, Frede N, Slade C, Woon ST, Lehnert K, Winzer S, Bulashevska A, Scerri T, Leung E, Jordan A, Keller B, de Vries E, Cao H, Yang F, Schäffer AA, Warnatz K, Browett P, Douglass J, Ameratunga RV, van der Meer JW, Grimbacher B |title=Haploinsufficiency of the NF-κB1 Subunit p50 in Common Variable Immunodeficiency |journal=Am. J. Hum. Genet. |volume=97 |issue=3 |pages=389–403 |date=September 2015 |pmid=26279205 |pmc=4564940 |doi=10.1016/j.ajhg.2015.07.008 |url=}}</ref>
+==NFKB2 Deficiency==
+*[[NFKB2|Nuclear factor kappa-B subunit 2]] ([[NFKB2]]) is a part of noncolonical [[NF-κB]] pathway and is involved in B cell maturation and [[antibody]] development.<ref name="pmid24140114">{{cite journal |vauthors=Chen K, Coonrod EM, Kumánovics A, Franks ZF, Durtschi JD, Margraf RL, Wu W, Heikal NM, Augustine NH, Ridge PG, Hill HR, Jorde LB, Weyrich AS, Zimmerman GA, Gundlapalli AV, Bohnsack JF, Voelkerding KV |title=Germline mutations in NFKB2 implicate the noncanonical NF-κB pathway in the pathogenesis of common variable immunodeficiency |journal=Am. J. Hum. Genet. |volume=93 |issue=5 |pages=812–24 |date=November 2013 |pmid=24140114 |pmc=3824125 |doi=10.1016/j.ajhg.2013.09.009 |url=}}</ref>
+*Mutations leading to deficiency cause [[Common variable immunodeficiency|CVID]] with  early onset [[Adrenocorticotropic hormone deficiency|central adrenal insufficiency]] and at times [[ectodermal dysplasia]].
+*Patients presents with [[Adrenocorticotropic hormone deficiency|ACTH deficiency]], recurrent infections, [[hypogammaglobulinemia]], decreased response to [[Vaccine|vaccines]] and [[autoimmunity]] effecting the skin, hair, and nails
+*Treatment is via [[immunoglobulin]] replacement therapy and [[glucocorticoid]] replacement.<ref name="pmid27749582">{{cite journal |vauthors=Shi C, Wang F, Tong A, Zhang XQ, Song HM, Liu ZY, Lyu W, Liu YH, Xia WB |title=NFKB2 mutation in common variable immunodeficiency and isolated adrenocorticotropic hormone deficiency: A case report and review of literature |journal=Medicine (Baltimore) |volume=95 |issue=40 |pages=e5081 |date=October 2016 |pmid=27749582 |pmc=5059085 |doi=10.1097/MD.0000000000005081 |url=}}</ref>
+==IKAROS Deficiency==
+*IKAROS gene encodes for a family of hemopoietic-specific zinc finger proteins which are essential for [[lymphocyte]] development.<ref name="pmid9143685">{{cite journal |vauthors=Georgopoulos K, Winandy S, Avitahl N |title=The role of the Ikaros gene in lymphocyte development and homeostasis |journal=Annu. Rev. Immunol. |volume=15 |issue= |pages=155–76 |date=1997 |pmid=9143685 |doi=10.1146/annurev.immunol.15.1.155 |url=}}</ref>
+*Individuals show varied severity of clinical disease, despite most patients having low [[B cell]] and [[antibody]] count.
+*Deficiency leads to [[hypogammaglobulinemia]], decreased response to vaccines, recurrent bacterial infections and [[Cancer|malignancies]].
+*Treatment is via replacement of [[immunoglobulins]] and  treatment of infections with [[Antibiotic|antibiotics]].<ref name="pmid26981933">{{cite journal |vauthors=Kuehn HS, Boisson B, Cunningham-Rundles C, Reichenbach J, Stray-Pedersen A, Gelfand EW, Maffucci P, Pierce KR, Abbott JK, Voelkerding KV, South ST, Augustine NH, Bush JS, Dolen WK, Wray BB, Itan Y, Cobat A, Sorte HS, Ganesan S, Prader S, Martins TB, Lawrence MG, Orange JS, Calvo KR, Niemela JE, Casanova JL, Fleisher TA, Hill HR, Kumánovics A, Conley ME, Rosenzweig SD |title=Loss of B Cells in Patients with Heterozygous Mutations in IKAROS |journal=N. Engl. J. Med. |volume=374 |issue=11 |pages=1032–1043 |date=March 2016 |pmid=26981933 |pmc=4836293 |doi=10.1056/NEJMoa1512234 |url=}}</ref>
+==ATP6AP1 Deficiency==
+*[[ATP6AP1]] encodes for Ac45 of human [[V-ATPase]] and is homologus to yeast [[V-ATPase]] assembly factor Voa1.
+*This gene is involved in [[B cell]] functioning, [[antigen]] recognition and [[antibody]] production.<ref name="pmid26579118">{{cite journal |vauthors=Lou Z, Casali P, Xu Z |title=Regulation of B Cell Differentiation by Intracellular Membrane-Associated Proteins and microRNAs: Role in the Antibody Response |journal=Front Immunol |volume=6 |issue= |pages=537 |date=2015 |pmid=26579118 |pmc=4620719 |doi=10.3389/fimmu.2015.00537 |url=}}</ref>
+*Deficiency therefore leads to [[hypogammaglobulinemia]] and increased susceptibility to infections.
+*Deficiency leads to pathology in the liver (ranging from [[cirrhosis]] to [[Liver disease|end-stage liver failure]]), [[leukopenia]] , and low levels of [[copper]] and [[ceruloplasmin]], and high [[alkaline phosphatase]].
+*Patients are treated with [[IVIG|intravenous immunoglobulins]].<ref name="pmid27231034">{{cite journal |vauthors=Jansen EJ, Timal S, Ryan M, Ashikov A, van Scherpenzeel M, Graham LA, Mandel H, Hoischen A, Iancu TC, Raymond K, Steenbergen G, Gilissen C, Huijben K, van Bakel NH, Maeda Y, Rodenburg RJ, Adamowicz M, Crushell E, Koenen H, Adams D, Vodopiutz J, Greber-Platzer S, Müller T, Dueckers G, Morava E, Sykut-Cegielska J, Martens GJ, Wevers RA, Niehues T, Huynen MA, Veltman JA, Stevens TH, Lefeber DJ |title=ATP6AP1 deficiency causes an immunodeficiency with hepatopathy, cognitive impairment and abnormal protein glycosylation |journal=Nat Commun |volume=7 |issue= |pages=11600 |date=May 2016 |pmid=27231034 |pmc=4894975 |doi=10.1038/ncomms11600 |url=}}</ref>
+==AID Deficiency==
+*[[Activation-induced cytidine deaminase]] (AID) is expressed by [[germinal center]] B cells and plays a crucial role in [[B cell]] terminal differentiation and antibody response (somatic hypermutation and class switching).
+*Deficiency leads to a form of the [[Hyper IgM syndrome|hyper-IgM syndrome]] (HIGM2), which shows [[autosomal recessive]] inheritance.
+*Disease is characterized by loss of [[immunoglobulin class switching]] and [[somatic hypermutation]], as well as [[lymphoid]] [[hyperplasia]] with giant [[Germinal center|germinal centers]] and enlarged [[Lymph node|lymph nodes]] requiring frequent biopsies.<ref name="pmid11007475">{{cite journal |vauthors=Revy P, Muto T, Levy Y, Geissmann F, Plebani A, Sanal O, Catalan N, Forveille M, Dufourcq-Labelouse R, Gennery A, Tezcan I, Ersoy F, Kayserili H, Ugazio AG, Brousse N, Muramatsu M, Notarangelo LD, Kinoshita K, Honjo T, Fischer A, Durandy A |title=Activation-induced cytidine deaminase (AID) deficiency causes the autosomal recessive form of the Hyper-IgM syndrome (HIGM2) |journal=Cell |volume=102 |issue=5 |pages=565–75 |date=September 2000 |pmid=11007475 |doi= |url=}}</ref>
+*Patients typically have normal or increased [[Immunoglobulin M|IgM]], but lack [[Immunoglobulin G|IgG]] and [[Immunoglobulin A|IgA]].
+*Immunodeficiency is complicated by [[Autoimmunity|autoimmune disorders]], gastric illnesses due to impaired [[Immunoglobulin A|IgA]] production, and recurrent bacterial infections of the upper respiratory system.
+*Treatment is via replacement of [[immunoglobulins]], [[Corticosteroid|corticosteroids]] for [[autoimmunity]].<ref name="pmid23215867">{{cite journal |vauthors=Durandy A, Cantaert T, Kracker S, Meffre E |title=Potential roles of activation-induced cytidine deaminase in promotion or prevention of autoimmunity in humans |journal=Autoimmunity |volume=46 |issue=2 |pages=148–56 |date=March 2013 |pmid=23215867 |pmc=4077434 |doi=10.3109/08916934.2012.750299 |url=}}</ref><ref name="pmid18716662">{{cite journal |vauthors=Hase K, Takahashi D, Ebisawa M, Kawano S, Itoh K, Ohno H |title=Activation-induced cytidine deaminase deficiency causes organ-specific autoimmune disease |journal=PLoS ONE |volume=3 |issue=8 |pages=e3033 |date=August 2008 |pmid=18716662 |pmc=2515643 |doi=10.1371/journal.pone.0003033 |url=}}</ref>
+==UNG deficiency==
+*Uracil-N glycosylase (UNG) removes uracil in [[DNA]] plays a role in suppressing GC-to-AT transition [[mutations]].<ref name="pmid12369930">{{cite journal |vauthors=Caradonna S, Muller-Weeks S |title=The nature of enzymes involved in uracil-DNA repair: isoform characteristics of proteins responsible for nuclear and mitochondrial genomic integrity |journal=Curr. Protein Pept. Sci. |volume=2 |issue=4 |pages=335–47 |date=December 2001 |pmid=12369930 |doi= |url=}}</ref>
+*UNG removes [[uracil]] residues leading to [[DNA]] breaks that helps initiate class switching.
+*UNG deficiency has an [[autosomal recessive]] mutation, this leads to  an normal or increased serum [[IgM]] concentrations with low or absent serum [[IgG]], [[IgA]], and [[IgE]] concentrations.
+*Disease is characterized by increased susceptibility to [[bacterial infections]], [[lymphoid]] [[hyperplasia]] leading to enlarged [[lymph nodes]].<ref name="pmid12958596">{{cite journal |vauthors=Imai K, Slupphaug G, Lee WI, Revy P, Nonoyama S, Catalan N, Yel L, Forveille M, Kavli B, Krokan HE, Ochs HD, Fischer A, Durandy A |title=Human uracil-DNA glycosylase deficiency associated with profoundly impaired immunoglobulin class-switch recombination |journal=Nat. Immunol. |volume=4 |issue=10 |pages=1023–8 |date=October 2003 |pmid=12958596 |doi=10.1038/ni974 |url=}}</ref>
+*Treatment is by [[immunoglobulin]] replacement therapy and treatment of [[infections]] with [[antibiotics]].<ref name="pmid20180797">{{cite journal |vauthors=Davies EG, Thrasher AJ |title=Update on the hyper immunoglobulin M syndromes |journal=Br. J. Haematol. |volume=149 |issue=2 |pages=167–80 |date=April 2010 |pmid=20180797 |pmc=2855828 |doi=10.1111/j.1365-2141.2010.08077.x |url=}}</ref>
+==INO80==
+*INO80 gene encodes for a subunit of the chromatin remodeling complex that is required for immunoglobulin class switching.
+*Patients have normal or elevated IgM levels, but low switched immunoglobulin isotypes (IgG, IgA, IgE).
+*Treatment is by [[Intravenous immunoglobulin|replacement of immunoglobulins]].<ref name="pmid25312759">{{cite journal |vauthors=Kracker S, Di Virgilio M, Schwartzentruber J, Cuenin C, Forveille M, Deau MC, McBride KM, Majewski J, Gazumyan A, Seneviratne S, Grimbacher B, Kutukculer N, Herceg Z, Cavazzana M, Jabado N, Nussenzweig MC, Fischer A, Durandy A |title=An inherited immunoglobulin class-switch recombination deficiency associated with a defect in the INO80 chromatin remodeling complex |journal=J. Allergy Clin. Immunol. |volume=135 |issue=4 |pages=998–1007.e6 |date=April 2015 |pmid=25312759 |pmc=4382329 |doi=10.1016/j.jaci.2014.08.030 |url=}}</ref>
+==MSH6==
+*MSH6 plays an important role  in induction and repair of DNA double-strand breaks in immunoglobulin isotype switch regions, and is also involved in somatic hypermutation.<ref name="pmid22250089">{{cite journal |vauthors=Gardès P, Forveille M, Alyanakian MA, Aucouturier P, Ilencikova D, Leroux D, Rahner N, Mazerolles F, Fischer A, Kracker S, Durandy A |title=Human MSH6 deficiency is associated with impaired antibody maturation |journal=J. Immunol. |volume=188 |issue=4 |pages=2023–9 |date=February 2012 |pmid=22250089 |doi=10.4049/jimmunol.1102984 |url=}}</ref>
+==[[Selective IgA deficiency|Selective IgA Deficiency]] (SIgAD)==
+*[[Selective IgA deficiency|Selective Immunoglobulin A (IgA) deficiency]] is the most common [[primary immunodeficiency]] and is defined as "serum level of [[Immunoglobulin A|IgA]] equal or below 7mg/dl in the presence of normal level of other [[immunoglobulins]] in individuals older than four years of age and in which other causes of [[hypogammaglobulinemia]] have been excluded".<ref name="pmid20101521">{{cite journal |vauthors=Yel L |title=Selective IgA deficiency |journal=J. Clin. Immunol. |volume=30 |issue=1 |pages=10–6 |date=January 2010 |pmid=20101521 |pmc=2821513 |doi=10.1007/s10875-009-9357-x |url=}}</ref>
+*Several genetic [[Mutation|mutations]] are associated with [[Selective IgA deficiency|SIgAD]] which suggest its polygenic nature but most commonly it is due to a maturation defect in [[B cell|B cells]] to produce [[Immunoglobulin A|IgA]].<ref name="pmid10370371">{{cite journal |vauthors=Wang Z, Yunis D, Irigoyen M, Kitchens B, Bottaro A, Alt FW, Alper CA |title=Discordance between IgA switching at the DNA level and IgA expression at the mRNA level in IgA-deficient patients |journal=Clin. Immunol. |volume=91 |issue=3 |pages=263–70 |date=June 1999 |pmid=10370371 |doi=10.1006/clim.1999.4702 |url=}}</ref>
+* [[B cell|B cells]] arrested at a stage where they coexpress surface [[Immunoglobulin M|IgM]], [[Immunoglobulin D|IgD]] as well as [[Immunoglobulin A|IgA]] and donot develop into [[Immunoglobulin A|IgA]] secreting plasma cells.<ref name="pmid6973088">{{cite journal |vauthors=Conley ME, Cooper MD |title=Immature IgA B cells in IgA-deficient patients |journal=N. Engl. J. Med. |volume=305 |issue=9 |pages=495–7 |date=August 1981 |pmid=6973088 |doi=10.1056/NEJM198108273050905 |url=}}</ref>.
+*The abnormality appears to involve [[Stem cell|stem cells]] as it can be passed on by [[bone marrow transplantation]].<ref name="pmid2858666">{{cite journal |vauthors=Hammarström L, Lönnqvist B, Ringdén O, Smith CI, Wiebe T |title=Transfer of IgA deficiency to a bone-marrow-grafted patient with aplastic anaemia |journal=Lancet |volume=1 |issue=8432 |pages=778–81 |date=April 1985 |pmid=2858666 |doi= |url=}}</ref>
+*Majority of the individuals are asymptomatic, but may present with recurrent respiratory and gastrointestinal infections (mucosal infections), [[Autoimmunity|autoimmune diseases]], [[atopy]] and [[anaphylaxis]] to [[Immunoglobulin A|IgA]] containing products.<ref name="pmid20101521">{{cite journal |vauthors=Yel L |title=Selective IgA deficiency |journal=J. Clin. Immunol. |volume=30 |issue=1 |pages=10–6 |date=January 2010 |pmid=20101521 |pmc=2821513 |doi=10.1007/s10875-009-9357-x |url=}}</ref>
+*[[Immunoglobulin A|IgA]] levels should be periodically monitored in asymptomatic patients.
+*There is no specific treatment for [[Selective immunoglobulin A deficiency|selective IgA deficiency]]. Individuals can be managed based on their symptoms as the presentation varies.
+*Antibiotics are used to treat bacterial infections in patients with [[Selective IgA deficiency|SIgAD]].
+*Prophylactic antibiotics can be used for recurrent [[Infection|infections]].
+*If prophylactic antibiotics fail, a trial of intravenous or subcutaneous [[immunoglobulin]] replacement therapy with minimal component of [[Immunoglobulin A|IgA]] may be tried.
+*Serum [[Immunoglobulin A|IgA]] antibodies should always be checked in such patient before administration of [[Intravenous immunoglobulin|IVIG]] to prevent the risk of [[anaphylaxis]].
+*If [[blood transfusion]] is required, [[Selective IgA deficiency|IgA deficient]] or washed blood components should be used.<ref name="pmid9544978">{{cite journal |vauthors=Rogers RL, Javed TA, Ross RE, Virella G, Stuart RK, Frei-Lahr D |title=Transfusion management of an IgA deficient patient with anti-IgA and incidental correction of IgA deficiency after allogeneic bone marrow transplantation |journal=Am. J. Hematol. |volume=57 |issue=4 |pages=326–30 |date=April 1998 |pmid=9544978 |doi= |url=}}</re
+*Patient with severe IgA deficiency can have anaphylactic reactions secondary to blood transfusion or its products. It is specifically seen in patients with undetectable serum IgA levels. These patients develop anti IgA antibodies so they should be advised to wear medical alert bracelet.<nowiki><ref name="pmid17137841"></nowiki>{{cite journal |vauthors=Horn J, Thon V, Bartonkova D, Salzer U, Warnatz K, Schlesier M, Peter HH, Grimbacher B |title=Anti-IgA antibodies in common variable immunodeficiency (CVID): diagnostic workup and therapeutic strategy |journal=Clin. Immunol. |volume=122 |issue=2 |pages=156–62 |date=February 2007 |pmid=17137841 |doi=10.1016/j.clim.2006.10.002 |url=}}</ref><ref name="pmid3945295">{{cite journal |vauthors=Burks AW, Sampson HA, Buckley RH |title=Anaphylactic reactions after gamma globulin administration in patients with hypogammaglobulinemia. Detection of IgE antibodies to IgA |journal=N. Engl. J. Med. |volume=314 |issue=9 |pages=560–4 |date=February 1986 |pmid=3945295 |doi=10.1056/NEJM198602273140907 |url=}}</ref><ref name="pmid20101521">{{cite journal |vauthors=Yel L |title=Selective IgA deficiency |journal=J. Clin. Immunol. |volume=30 |issue=1 |pages=10–6 |date=January 2010 |pmid=20101521 |pmc=2821513 |doi=10.1007/s10875-009-9357-x |url=}}</ref>
+*[[Pneumococcal vaccine]] is recommended in patients with [[Selective IgA deficiency|SIgAD]] to reduce the risk of sino-pulmonary infections.
+==Kappa chain Deficiency==
+*Approximately 2/3 of the total immunoglobulins light chains, circulating and surface bound, are Kappa [[Light chain|light chains]].
+*Deficiency is due to a genetic defect causing [[homozygous]] T to G substitution which leads to absent kappa [[Light chain|light chain immunoglobulins]], but the concentration of [[immunoglobulin]] isotypes ([[Immunoglobulin G|IgG]], [[IgA]], [[IgM]], [[IgE]] and [[Immunoglobulin D|IgD]]) are normal due to compensation by lambda [[Light chain|light chains]].
+*This leads to increased susceptibility bacterial infections of respiratory and [[Gastrointestinal tract|gastrointestinal system]], [[autoimmunity]] and IgA deficiency.
+*Patients require frequent hospitalization and [[antibiotic]] therapy to treat recurrent infections.<ref name="pmid26853951">{{cite journal |vauthors=Sala P, Colatutto A, Fabbro D, Mariuzzi L, Marzinotto S, Toffoletto B, Perosa AR, Damante G |title=Immunoglobulin K light chain deficiency: A rare, but probably underestimated, humoral immune defect |journal=Eur J Med Genet |volume=59 |issue=4 |pages=219–22 |date=April 2016 |pmid=26853951 |doi=10.1016/j.ejmg.2016.02.003 |url=}}</ref><ref name="pmid815819">{{cite journal |vauthors=Zegers BJ, Maertzdorf WJ, Van Loghem E, Mul NA, Stoop JW, Van Der Laag J, Vossen JJ, Ballieux RE |title=Kappa-chain deficiency. An immunoglobulin disorder |journal=N. Engl. J. Med. |volume=294 |issue=19 |pages=1026–30 |date=May 1976 |pmid=815819 |doi=10.1056/NEJM197605062941902 |url=}}</ref><ref name="pmid3931219">{{cite journal |vauthors=Stavnezer-Nordgren J, Kekish O, Zegers BJ |title=Molecular defects in a human immunoglobulin kappa chain deficiency |journal=Science |volume=230 |issue=4724 |pages=458–61 |date=October 1985 |pmid=3931219 |doi= |url=}}</ref>
+==Selective IgM Deficiency==
+*Selective IgM deficiency (SIGMD) is defined as "serum [[Immunoglobulin M|IgM]] levels below two SD of mean with normal serum IgG IgA and T cells".<ref name="pmid4168495">{{cite journal |vauthors=Hobbs JR, Milner RD, Watt PJ |title=Gamma-M deficiency predisposing to meningococcal septicaemia |journal=Br Med J |volume=4 |issue=5579 |pages=583–6 |date=December 1967 |pmid=4168495 |pmc=1749295 |doi= |url=}}</ref>
+*Cause of IgM deficiency is due to many genetic defects, but commonly due to  22q11.2 [[chromosome]] deletion.
+*Individuals with SIGMD present with increased susceptibility to [[Infection|infections]] by [[Microorganism|microorganisms]] and [[protozoa]], [[atopy]], impaired [[antibody]] response and [[autoimmune]] diseases.
+*Treatment is via [[immunoglobulin]] replacement and treatment of infection with [[Antibiotic|antibiotics]].<ref name="pmid28928736">{{cite journal |vauthors=Gupta S, Gupta A |title=Selective IgM Deficiency-An Underestimated Primary Immunodeficiency |journal=Front Immunol |volume=8 |issue= |pages=1056 |date=2017 |pmid=28928736 |pmc=5591887 |doi=10.3389/fimmu.2017.01056 |url=}}</ref><ref name="pmid23760686">{{cite journal |vauthors=Louis AG, Gupta S |title=Primary selective IgM deficiency: an ignored immunodeficiency |journal=Clin Rev Allergy Immunol |volume=46 |issue=2 |pages=104–11 |date=April 2014 |pmid=23760686 |doi=10.1007/s12016-013-8375-x |url=}}</ref>
+==CARD11 Gain of Function==
+*[[CARD11|Caspase recruitment domain-containing family member 11]] ([[CARD11]]) is a scaffold protein which plays a crucial role in antigen receptor induced NF-kB activation, [[B cell]] differentiation, and functioning of effector [[T cell]].<ref name="pmid23374270">{{cite journal |vauthors=Stepensky P, Keller B, Buchta M, Kienzler AK, Elpeleg O, Somech R, Cohen S, Shachar I, Miosge LA, Schlesier M, Fuchs I, Enders A, Eibel H, Grimbacher B, Warnatz K |title=Deficiency of caspase recruitment domain family, member 11 (CARD11), causes profound combined immunodeficiency in human subjects |journal=J. Allergy Clin. Immunol. |volume=131 |issue=2 |pages=477–85.e1 |date=February 2013 |pmid=23374270 |doi=10.1016/j.jaci.2012.11.050 |url=}}</ref>
+*CARD11 gain of function mutations are associated with a disorder known as [[B cell]] expansion with NF-kB and T cell anergy (BENTA) disease.
+*Patients present with enlarged [[lymph nodes]] and [[splenomegaly]] at infancy.
+*Mutation leads to congenital [[B cell]] [[Lymphoproliferative disorders|lymphoproliferation]], impaired [[T cell]] response to antigen receptor activation, decrease in number of [[Immunoglobulin|immunoglobulins]], recurrent sinopulmonary [[infections]], decreased response to [[vaccines]] and [[malignancies]] due to overactive [[NF-kB]].<ref name="pmid23129749">{{cite journal |vauthors=Snow AL, Xiao W, Stinson JR, Lu W, Chaigne-Delalande B, Zheng L, Pittaluga S, Matthews HF, Schmitz R, Jhavar S, Kuchen S, Kardava L, Wang W, Lamborn IT, Jing H, Raffeld M, Moir S, Fleisher TA, Staudt LM, Su HC, Lenardo MJ |title=Congenital B cell lymphocytosis explained by novel germline CARD11 mutations |journal=J. Exp. Med. |volume=209 |issue=12 |pages=2247–61 |date=November 2012 |pmid=23129749 |pmc=3501355 |doi=10.1084/jem.20120831 |url=}}</ref><ref name="pmid26406182">{{cite journal |vauthors=Arjunaraja S, Snow AL |title=Gain-of-function mutations and immunodeficiency: at a loss for proper tuning of lymphocyte signaling |journal=Curr Opin Allergy Clin Immunol |volume=15 |issue=6 |pages=533–8 |date=December 2015 |pmid=26406182 |pmc=4672729 |doi=10.1097/ACI.0000000000000217 |url=}}</ref><ref name="pmid18323416">{{cite journal |vauthors=Lenz G, Davis RE, Ngo VN, Lam L, George TC, Wright GW, Dave SS, Zhao H, Xu W, Rosenwald A, Ott G, Muller-Hermelink HK, Gascoyne RD, Connors JM, Rimsza LM, Campo E, Jaffe ES, Delabie J, Smeland EB, Fisher RI, Chan WC, Staudt LM |title=Oncogenic CARD11 mutations in human diffuse large B cell lymphoma |journal=Science |volume=319 |issue=5870 |pages=1676–9 |date=March 2008 |pmid=18323416 |doi=10.1126/science.1153629 |url=}}</ref>
+*No definitive treatment, patients are monitored and treated for [[infections]] and in a few cases via [[splenectomy]] to decrease [[B cell]] load.<ref name="pmid25087226">{{cite journal |vauthors=Turvey SE, Durandy A, Fischer A, Fung SY, Geha RS, Gewies A, Giese T, Greil J, Keller B, McKinnon ML, Neven B, Rozmus J, Ruland J, Snow AL, Stepensky P, Warnatz K |title=The CARD11-BCL10-MALT1 (CBM) signalosome complex: Stepping into the limelight of human primary immunodeficiency |journal=J. Allergy Clin. Immunol. |volume=134 |issue=2 |pages=276–84 |date=August 2014 |pmid=25087226 |pmc=4167767 |doi=10.1016/j.jaci.2014.06.015 |url=}}</ref>
 ==References==
 {{Reflist|2}}

Predominantly antibody deficiency: Difference between revisions

Latest revision as of 17:22, 14 December 2018

Overview

Classification

Hypogammaglobulinemia

Other Antibody deficiencies

X-linked Agammaglobulinemia

µ Heavy Chain Deficiency

Igα Deficiency

Igβ Deficiency

BLNK Deficiency

λ5 Deficiency

PI3KR1 Deficiency

E47 transcription factor Deficiency

CVID With No Gene Specified

PIK3CD mutation,PIK3R1 deficiency

PTEN deficiency

CD 81 Deficiency

TACI Deficiency

BAFF Receptor Deficiency

TWEAK Deficiency

MOGS Deficiency

TTC37 Deficiency

IRF2BP2 Deficiency

CD19 Deficiency

CD20 Deficiency

CD21 Deficiency

TRNT1 Deficiency

NFKB1 Deficiency

NFKB2 Deficiency

IKAROS Deficiency

ATP6AP1 Deficiency

AID Deficiency

UNG deficiency

INO80

MSH6

Selective IgA Deficiency (SIgAD)

Kappa chain Deficiency

Selective IgM Deficiency

CARD11 Gain of Function

References

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