Congenital defects of phagocytes: Difference between revisions
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==Shwachman-Diamond Syndrome== | ==Shwachman-Diamond Syndrome== | ||
*Autosomal | *[[Autosomal recessive]] (AR) transmission. | ||
*It is caused by compound heterozygous or homozygous mutations in the SBDS gene on chromosome 7. | *It is caused by compound heterozygous or homozygous mutations in the SBDS gene on [[chromosome 7]]. | ||
*Patients present with exocrine pancreatic dysfunction, bony metaphyseal dysostosis, and | *Patients present with exocrine pancreatic dysfunction, bony metaphyseal dysostosis, and [[Pancytopenia|pancytopenias]]. | ||
*CT scan can be useful in the diagnosis. | |||
*CT scan can be useful in the diagnosis. | |||
==G6PC3 deficiency== | ==G6PC3 deficiency== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*It is caused by homozygous mutation in the G6PC3 gene on chromosome 17. | *It is caused by homozygous mutation in the G6PC3 gene on chromosome 17. | ||
*Patients present with congenital neutropenia, cardiac abnormalities, inner ear deafness, neonatal sepsis and a prominent superficial venous pattern. | *Patients present with congenital neutropenia, cardiac abnormalities, inner ear deafness, neonatal sepsis and a prominent superficial venous pattern. | ||
==Glycogen storage disease type 1b== | ==Glycogen storage disease type 1b== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*It is caused by homozygous or compound heterozygous mutation in the G6PT1 gene which encodes glucose-6-phosphate translocase, on chromosome 11. | *It is caused by homozygous or compound heterozygous mutation in the G6PT1 gene which encodes glucose-6-phosphate translocase, on chromosome 11. | ||
*Patients present with short stature, hepatomegaly, hypertension, eruptive xanthoma and hyperlipidemia. | *Patients present with short stature, hepatomegaly, hypertension, eruptive xanthoma and hyperlipidemia. | ||
==Cohen Syndrome== | ==Cohen Syndrome== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*It is caused by homozygous or compound heterozygous mutations in the COH1 gene on chromosome 8. | *It is caused by homozygous or compound heterozygous mutations in the COH1 gene on chromosome 8. | ||
*Patients present with nonprogressive psychomotor retardation, motor clumsiness, microcephaly, high-arched eyelids, short philtrum, thick hair, low hairline, hypotonia, hyperextensibility of the joints, retinochoroidal dystrophy, myopia, and granulocytopenia. | *Patients present with nonprogressive psychomotor retardation, motor clumsiness, microcephaly, high-arched eyelids, short philtrum, thick hair, low hairline, hypotonia, hyperextensibility of the joints, retinochoroidal dystrophy, myopia, and granulocytopenia. | ||
==Barth Syndrome== | ==Barth Syndrome== | ||
*X-linked recessive(XLR) transmission. | *X-linked recessive(XLR) transmission. | ||
*It is caused by mutation in the tafazzin gene (TAZ) on chromosome X. | *It is caused by mutation in the tafazzin gene (TAZ) on chromosome X. | ||
*Patients present with dilated cardiomyopathy, a predominantly proximal skeletal myopathy, growth retardation, organic aciduria, and neutropenia. | *Patients present with dilated cardiomyopathy, a predominantly proximal skeletal myopathy, growth retardation, organic aciduria, and neutropenia. | ||
==Clericuzio syndrome (poikiloderma with neutropenia)== | ==Clericuzio syndrome (poikiloderma with neutropenia)== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*It is caused by homozygous or compound heterozygous mutation in the USB1 gene on chromosome 16. | *It is caused by homozygous or compound heterozygous mutation in the USB1 gene on chromosome 16. | ||
*Patients present with a gradual, centripetally spreading, papular erythematous rash on the limbs during the first year of life. Neutropenia may also be present. | *Patients present with a gradual, centripetally spreading, papular erythematous rash on the limbs during the first year of life. Neutropenia may also be present. | ||
==VPS45 deficiency (SCN5)== | ==VPS45 deficiency (SCN5)== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*It is caused by homozygous mutation in the VPS45 gene on chromosome 1. | *It is caused by homozygous mutation in the VPS45 gene on chromosome 1. | ||
*Patients present in childhood with poor weight gain, hepatosplenomegaly, severe infections, hypergammaglobulinemia, nephromegaly due to extramedullary hematopoiesis, and bone marrow fibrosis. | *Patients present in childhood with poor weight gain, hepatosplenomegaly, severe infections, hypergammaglobulinemia, nephromegaly due to extramedullary hematopoiesis, and bone marrow fibrosis. | ||
==P14/LAMTOR2 deficiency== | ==P14/LAMTOR2 deficiency== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*Patients present with short stature, hypopigmeted skin, coarse facial features and recurrent bronchopulmonary infections. | *Patients present with short stature, hypopigmeted skin, coarse facial features and recurrent bronchopulmonary infections. | ||
==JAGN1 deficiency== | ==JAGN1 deficiency== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*Patients present with aberrant myeloid cell homeostasis and congenital neutropenia. | *Patients present with aberrant myeloid cell homeostasis and congenital neutropenia. | ||
==3-Methylglutaconic aciduria== | ==3-Methylglutaconic aciduria== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*It is caused by homozygous or compound heterozygous mutation in the CLPB gene on chromosome 11, which leads to by increased levels of 3-methylglutaconic acid (3-MGA) associated with neurologic deterioration and neutropenia. | *It is caused by homozygous or compound heterozygous mutation in the CLPB gene on chromosome 11, which leads to by increased levels of 3-methylglutaconic acid (3-MGA) associated with neurologic deterioration and neutropenia. | ||
*Patients present with delayed psychomotor development, congenital neutropenia, brain atrophy, microcephaly, movement disorders and cataracts. | *Patients present with delayed psychomotor development, congenital neutropenia, brain atrophy, microcephaly, movement disorders and cataracts. | ||
==SMARCD2 deficiency== | ==SMARCD2 deficiency== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*It is caused by a mutation in the SMARCD2 gene on chromosome 17. | *It is caused by a mutation in the SMARCD2 gene on chromosome 17. | ||
*Patients present with myelodysplasia, bone defects and developmental abnormalities. | *Patients present with myelodysplasia, bone defects and developmental abnormalities. | ||
==WDR1 deficiency== | ==WDR1 deficiency== | ||
*Autosomal recessive(AR) transmission. | *Autosomal recessive(AR) transmission. | ||
*It is caused by mutation in the WDR1 gene on chromosome 4. | *It is caused by mutation in the WDR1 gene on chromosome 4. | ||
*Patients present with recurrent infections, mild neutropenia, impaired wound healing and severe stomatitis with oral stenosis. | |||
*Patients present with recurrent infections, mild neutropenia, impaired wound healing and severe stomatitis with oral stenosis. | |||
==HYOU1 deficiency== | ==HYOU1 deficiency== | ||
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*Autosomal dominant (AD) transmission. | *Autosomal dominant (AD) transmission. | ||
*It is caused by a mutation in the ELANE gene on chromosome 19. | *It is caused by a mutation in the ELANE gene on chromosome 19. | ||
*Patients present with cyclic neutropenia starting in childhood with a cycle of approximately 21 days. Recurrent infections with fever are also common features. | *Patients present with cyclic neutropenia starting in childhood with a cycle of approximately 21 days. Recurrent infections with fever are also common features. | ||
*The mainstay of treatment is giving granulocyte-colony stimulating factor (GCSF or CSF3) | |||
*The mainstay of treatment is giving granulocyte-colony stimulating factor (GCSF or CSF3) | |||
==HAX1 deficiency (Kostmann Disease) (SCN3)== | ==HAX1 deficiency (Kostmann Disease) (SCN3)== | ||
*Autosomal recessive (AR) transmission. | *Autosomal recessive (AR) transmission. | ||
*It is caused by homozygous or compound heterozygous mutation in the HAX1 gene on chromosome 1. | *It is caused by homozygous or compound heterozygous mutation in the HAX1 gene on chromosome 1. | ||
*Patients present with recurrent bacterial infections and neurologic abnormalities like psychomotor retardation and seizures. Patients are also at increased risk of developing leukemia and myelodysplastic syndrome. | *Patients present with recurrent bacterial infections and neurologic abnormalities like psychomotor retardation and seizures. Patients are also at increased risk of developing leukemia and myelodysplastic syndrome. | ||
==GFI 1 deficiency== | ==GFI 1 deficiency== | ||
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==Neutropenia with combined immune deficiency== | ==Neutropenia with combined immune deficiency== | ||
*Autosomal recessive (AR) transmission. | *Autosomal recessive (AR) transmission. | ||
*It is caused by a mutation in MKL1 gene on chromosome 22. | *It is caused by a mutation in MKL1 gene on chromosome 22. | ||
*Patients present with lymphopenia and thrombocytopenia. | *Patients present with lymphopenia and thrombocytopenia. | ||
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*Autosomal recessive (AR) transmission. | *Autosomal recessive (AR) transmission. | ||
*It is caused by homozygous or compound heterozygous mutation in the cathepsin C gene (CTSC) on chromosome 11. | *It is caused by homozygous or compound heterozygous mutation in the cathepsin C gene (CTSC) on chromosome 11. | ||
*Patients present with palmoplantar keratoderma, periodontitis, and premature loss of dentition. | *Patients present with palmoplantar keratoderma, periodontitis, and premature loss of dentition. | ||
*Acitretin if started at a early age can help patients have normal adult dentition. | |||
*Acitretin if started at a early age can help patients have normal adult dentition. | |||
==Localized juvenile periodontitis== | ==Localized juvenile periodontitis== | ||
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*Autosomal recessive transmission. | *Autosomal recessive transmission. | ||
*It results from a deficiency of the beta-2 integrin subunit of the leukocyte cell adhesion molecule, which results in poor neutrophil chemotaxis and phagocytosis. | *It results from a deficiency of the beta-2 integrin subunit of the leukocyte cell adhesion molecule, which results in poor neutrophil chemotaxis and phagocytosis. | ||
*Patients develop recurrent infections, delay in umbilical cord seperation, and impaired pus formation. | *Patients develop recurrent infections, delay in umbilical cord seperation, and impaired pus formation. | ||
*The mainstay of treatment is HSCT and gene therapy. | |||
*The mainstay of treatment is HSCT and gene therapy. | |||
*For detailed information about leukocyte adhesion deficiency, click here [[leukocyte adhesion deficiency]] | *For detailed information about leukocyte adhesion deficiency, click here [[leukocyte adhesion deficiency]] | ||
==GATA2 def (MonoMac syndrome)== | ==GATA2 def (MonoMac syndrome)== | ||
*Autosomal dominant (AD) transmission. | *Autosomal dominant (AD) transmission. | ||
*This syndrome is characterized by decreased or absent circulating monocytes, dendritic cells, natural killer cells, and B cells. Patients are at increased risk of developing severe or recurrent nontuberculous mycobacterial (NTM) infections, although opportunistic fungal infections and disseminated human papillomavirus (HPV) infections also occur. | *This syndrome is characterized by decreased or absent circulating monocytes, dendritic cells, natural killer cells, and B cells. Patients are at increased risk of developing severe or recurrent nontuberculous mycobacterial (NTM) infections, although opportunistic fungal infections and disseminated human papillomavirus (HPV) infections also occur. | ||
*Bone marrow transplant has shown success as the mode of treatment in some cases. | |||
*Bone marrow transplant has shown success as the mode of treatment in some cases. | |||
==Specific granule deficiency== | ==Specific granule deficiency== | ||
*Autosomal recessive (AR) transmission. | *Autosomal recessive (AR) transmission. | ||
*It is cause by homozygous mutation in the CEBPE gene on chromosome 14. | *It is cause by homozygous mutation in the CEBPE gene on chromosome 14. | ||
*Neutrophils of these patients display atypical bilobed nuclei. | *Neutrophils of these patients display atypical bilobed nuclei. | ||
==Pulmonary alveolar proteinosis== | ==Pulmonary alveolar proteinosis== | ||
*Autosomal recessive (AR) transmission. | *Autosomal recessive (AR) transmission. | ||
*It is caused by homozygous mutation in the CSF2RB gene on chromosome 22. | *It is caused by homozygous mutation in the CSF2RB gene on chromosome 22. | ||
*It is a rare lung disease characterized by the ineffective clearance of surfactant by alveolar macrophages causing respiratory failure. | *It is a rare lung disease characterized by the ineffective clearance of surfactant by alveolar macrophages causing respiratory failure. | ||
==Chronic granulomatous disease (CGD)== | ==Chronic granulomatous disease (CGD)== | ||
*X-linked recessive transmission, however it can also have autosomal recessive transmission in few cases. | *X-linked recessive transmission, however it can also have autosomal recessive transmission in few cases. | ||
*It results from an inability of the phagocytes to kill microbes that they have already ingested. | *It results from an inability of the phagocytes to kill microbes that they have already ingested. | ||
*Patients present with pneumonia, osteomyelitis and recurrent abscesses of the skin and organs. | *Patients present with pneumonia, osteomyelitis and recurrent abscesses of the skin and organs. | ||
*For detailed information about Chronic granulomatous disease, click here [[Chronic granulomatous disease]] | *For detailed information about Chronic granulomatous disease, click here [[Chronic granulomatous disease]] | ||
==Rac 2 deficiency== | ==Rac 2 deficiency== | ||
*It is caused by mutation in the RAC2 gene on chromosome 22. | *It is caused by mutation in the RAC2 gene on chromosome 22. | ||
*Patients present with severe infections and impaired wound healing. | *Patients present with severe infections and impaired wound healing. | ||
==Glucose-6-phosphate dehydrogenase deficiency (G6PD) Class 1== | ==Glucose-6-phosphate dehydrogenase deficiency (G6PD) Class 1== | ||
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*Patients typically present with acute hemolytic anemia and neonatal jaundice. | *Patients typically present with acute hemolytic anemia and neonatal jaundice. | ||
*For detailed information about Glucose-6-phosphate dehydrogenase deficiency, click here [[Glucose-6-phosphate dehydrogenase deficiency]] | *For detailed information about Glucose-6-phosphate dehydrogenase deficiency, click here [[Glucose-6-phosphate dehydrogenase deficiency]] | ||
==References== | ==References== | ||
<references /> |
Revision as of 13:08, 29 October 2018
Immunodeficiency Main Page |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ali Akram, M.B.B.S.[2], Anmol Pitliya, M.B.B.S. M.D.[3]
Overview
Classification
Congenital defects of Phagocyte | |||||||||||||||
Congenital defects of phagocyte number | Congenital defects of phagocyte function | ||||||||||||||
Congeital Defects of Phagocyte Number
Congenital defects of phagocyte number | |||||||||||||||||||||||||||
Syndrome associated | No syndrome associated | ||||||||||||||||||||||||||
Shwachman-Diamond syndrome | Elastase deficiency (SCN1) | ||||||||||||||||||||||||||
G6PC3 deficiency (SCN4) | HAX1 deficiency (Kostmann Disease) (SCN3) | ||||||||||||||||||||||||||
Glycogen storage disease type 1b | GFI 1 deficiency (SCN2) | ||||||||||||||||||||||||||
Cohen syndrome | X-linked neutropenia/myelodysplasia WAS GOF | ||||||||||||||||||||||||||
Barth Syndrome | G-CSF receptor deficiency | ||||||||||||||||||||||||||
Clericuzio syndrome (poikiloderma with neutropenia) | Neutropenia with combined immune deficiency | ||||||||||||||||||||||||||
VPS45 deficiency(SCN5) | |||||||||||||||||||||||||||
P14/LAMTOR2 deficiency | |||||||||||||||||||||||||||
JAGN1 deficiency | |||||||||||||||||||||||||||
methylglutacoic aciduria | |||||||||||||||||||||||||||
SMARCD2 deficiency | |||||||||||||||||||||||||||
WDR1 deficiency | |||||||||||||||||||||||||||
HYOU1 deficiency | |||||||||||||||||||||||||||
Congenital defects of phagocyte function
Congenital defects of phagocyte function | |||||||||||||||||||||||||||||||||||
Syndrome associated | No Syndrome associated;DHR assay(or NBT test)? | ||||||||||||||||||||||||||||||||||
Cystic Fibrosis | Normal | Abnormal | |||||||||||||||||||||||||||||||||
Papillion-Lefèvre | GATA2 def (MonoMac syndrome | CGD | |||||||||||||||||||||||||||||||||
Localized juvenile periodontitis | Specific granule deficiency | Rac 2 deficiency | |||||||||||||||||||||||||||||||||
B-Actin | Pulmonary alveolar proteinosis | G6PD def Class 1 | |||||||||||||||||||||||||||||||||
Leukocyte adhesion deficiency | |||||||||||||||||||||||||||||||||||
Shwachman-Diamond Syndrome
- Autosomal recessive (AR) transmission.
- It is caused by compound heterozygous or homozygous mutations in the SBDS gene on chromosome 7.
- Patients present with exocrine pancreatic dysfunction, bony metaphyseal dysostosis, and pancytopenias.
- CT scan can be useful in the diagnosis.
G6PC3 deficiency
- Autosomal recessive(AR) transmission.
- It is caused by homozygous mutation in the G6PC3 gene on chromosome 17.
- Patients present with congenital neutropenia, cardiac abnormalities, inner ear deafness, neonatal sepsis and a prominent superficial venous pattern.
Glycogen storage disease type 1b
- Autosomal recessive(AR) transmission.
- It is caused by homozygous or compound heterozygous mutation in the G6PT1 gene which encodes glucose-6-phosphate translocase, on chromosome 11.
- Patients present with short stature, hepatomegaly, hypertension, eruptive xanthoma and hyperlipidemia.
Cohen Syndrome
- Autosomal recessive(AR) transmission.
- It is caused by homozygous or compound heterozygous mutations in the COH1 gene on chromosome 8.
- Patients present with nonprogressive psychomotor retardation, motor clumsiness, microcephaly, high-arched eyelids, short philtrum, thick hair, low hairline, hypotonia, hyperextensibility of the joints, retinochoroidal dystrophy, myopia, and granulocytopenia.
Barth Syndrome
- X-linked recessive(XLR) transmission.
- It is caused by mutation in the tafazzin gene (TAZ) on chromosome X.
- Patients present with dilated cardiomyopathy, a predominantly proximal skeletal myopathy, growth retardation, organic aciduria, and neutropenia.
Clericuzio syndrome (poikiloderma with neutropenia)
- Autosomal recessive(AR) transmission.
- It is caused by homozygous or compound heterozygous mutation in the USB1 gene on chromosome 16.
- Patients present with a gradual, centripetally spreading, papular erythematous rash on the limbs during the first year of life. Neutropenia may also be present.
VPS45 deficiency (SCN5)
- Autosomal recessive(AR) transmission.
- It is caused by homozygous mutation in the VPS45 gene on chromosome 1.
- Patients present in childhood with poor weight gain, hepatosplenomegaly, severe infections, hypergammaglobulinemia, nephromegaly due to extramedullary hematopoiesis, and bone marrow fibrosis.
P14/LAMTOR2 deficiency
- Autosomal recessive(AR) transmission.
- Patients present with short stature, hypopigmeted skin, coarse facial features and recurrent bronchopulmonary infections.
JAGN1 deficiency
- Autosomal recessive(AR) transmission.
- Patients present with aberrant myeloid cell homeostasis and congenital neutropenia.
3-Methylglutaconic aciduria
- Autosomal recessive(AR) transmission.
- It is caused by homozygous or compound heterozygous mutation in the CLPB gene on chromosome 11, which leads to by increased levels of 3-methylglutaconic acid (3-MGA) associated with neurologic deterioration and neutropenia.
- Patients present with delayed psychomotor development, congenital neutropenia, brain atrophy, microcephaly, movement disorders and cataracts.
SMARCD2 deficiency
- Autosomal recessive(AR) transmission.
- It is caused by a mutation in the SMARCD2 gene on chromosome 17.
- Patients present with myelodysplasia, bone defects and developmental abnormalities.
WDR1 deficiency
- Autosomal recessive(AR) transmission.
- It is caused by mutation in the WDR1 gene on chromosome 4.
- Patients present with recurrent infections, mild neutropenia, impaired wound healing and severe stomatitis with oral stenosis.
HYOU1 deficiency
- Autosomal recessive (AR) transmission.
- It is caused by mutation in the HYOU1 gene on chromosome 11.
- Patients present with hypoglycemia and infections.
Elastase deficiency (SCN1)
- Autosomal dominant (AD) transmission.
- It is caused by a mutation in the ELANE gene on chromosome 19.
- Patients present with cyclic neutropenia starting in childhood with a cycle of approximately 21 days. Recurrent infections with fever are also common features.
- The mainstay of treatment is giving granulocyte-colony stimulating factor (GCSF or CSF3)
HAX1 deficiency (Kostmann Disease) (SCN3)
- Autosomal recessive (AR) transmission.
- It is caused by homozygous or compound heterozygous mutation in the HAX1 gene on chromosome 1.
- Patients present with recurrent bacterial infections and neurologic abnormalities like psychomotor retardation and seizures. Patients are also at increased risk of developing leukemia and myelodysplastic syndrome.
GFI 1 deficiency
- Autosomal dominant (AD) transmission.
- B and T cell lymphopenia is the major feature of this disease.
X-linked neutropenia/myelodysplasia WAS GOF
- X-linked recessive transmission.
- Patients present with myeloid maturation arrest and monocytopenia.
G-CSF receptor deficiency
- Autosomal recessive (AR) transmission.
- It is caused by a mutation in CSF3R gene on chromosome 1.
Neutropenia with combined immune deficiency
- Autosomal recessive (AR) transmission.
- It is caused by a mutation in MKL1 gene on chromosome 22.
- Patients present with lymphopenia and thrombocytopenia.
Cystic fibrosis
- Autosomal recessive (AR) transmission.
- It is caused by homozygous or compound heterozygous mutation in the cystic fibrosis conductance regulator gene (CFTR) on chromosome 7.
- Patients can have pancreatic insufficiency, lung infections and increased levels of sweat chloride.
- For detailed information about cystic fibrosis, click here Cystic fibrosis
Papillion-Lefèvre
- Autosomal recessive (AR) transmission.
- It is caused by homozygous or compound heterozygous mutation in the cathepsin C gene (CTSC) on chromosome 11.
- Patients present with palmoplantar keratoderma, periodontitis, and premature loss of dentition.
- Acitretin if started at a early age can help patients have normal adult dentition.
Localized juvenile periodontitis
- It is cause by a mutation in the FPR1 gene.
B-actin
- It is cause by a mutation in the ACTB gene.
- Patients usually develop mental retardation.
Leukocyte adhesion deficiency
- Autosomal recessive transmission.
- It results from a deficiency of the beta-2 integrin subunit of the leukocyte cell adhesion molecule, which results in poor neutrophil chemotaxis and phagocytosis.
- Patients develop recurrent infections, delay in umbilical cord seperation, and impaired pus formation.
- The mainstay of treatment is HSCT and gene therapy.
- For detailed information about leukocyte adhesion deficiency, click here leukocyte adhesion deficiency
GATA2 def (MonoMac syndrome)
- Autosomal dominant (AD) transmission.
- This syndrome is characterized by decreased or absent circulating monocytes, dendritic cells, natural killer cells, and B cells. Patients are at increased risk of developing severe or recurrent nontuberculous mycobacterial (NTM) infections, although opportunistic fungal infections and disseminated human papillomavirus (HPV) infections also occur.
- Bone marrow transplant has shown success as the mode of treatment in some cases.
Specific granule deficiency
- Autosomal recessive (AR) transmission.
- It is cause by homozygous mutation in the CEBPE gene on chromosome 14.
- Neutrophils of these patients display atypical bilobed nuclei.
Pulmonary alveolar proteinosis
- Autosomal recessive (AR) transmission.
- It is caused by homozygous mutation in the CSF2RB gene on chromosome 22.
- It is a rare lung disease characterized by the ineffective clearance of surfactant by alveolar macrophages causing respiratory failure.
Chronic granulomatous disease (CGD)
- X-linked recessive transmission, however it can also have autosomal recessive transmission in few cases.
- It results from an inability of the phagocytes to kill microbes that they have already ingested.
- Patients present with pneumonia, osteomyelitis and recurrent abscesses of the skin and organs.
- For detailed information about Chronic granulomatous disease, click here Chronic granulomatous disease
Rac 2 deficiency
- It is caused by mutation in the RAC2 gene on chromosome 22.
- Patients present with severe infections and impaired wound healing.
Glucose-6-phosphate dehydrogenase deficiency (G6PD) Class 1
- X-linked dominant (XLD) transmission.
- It is caused by mutation in the G6PD gene on chromosome X causing decreased G6PD enzyme levels.
- Patients typically present with acute hemolytic anemia and neonatal jaundice.
- For detailed information about Glucose-6-phosphate dehydrogenase deficiency, click here Glucose-6-phosphate dehydrogenase deficiency