Lupus nephritis pathophysiology: Difference between revisions

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Immune system, genetic, and environmental factors are considered in the pathogenesis of SLE.
Immune system, genetic, and environmental factors are considered in the pathogenesis of SLE.


- Immune system <ref name="pmid25014039">{{cite journal |vauthors=Schwartz N, Goilav B, Putterman C |title=The pathogenesis, diagnosis and treatment of lupus nephritis |journal=Curr Opin Rheumatol |volume=26 |issue=5 |pages=502–9 |date=September 2014 |pmid=25014039 |pmc=4221732 |doi=10.1097/BOR.0000000000000089 |url=}}</ref>:
- '''Immune system''' <ref name="pmid25014039">{{cite journal |vauthors=Schwartz N, Goilav B, Putterman C |title=The pathogenesis, diagnosis and treatment of lupus nephritis |journal=Curr Opin Rheumatol |volume=26 |issue=5 |pages=502–9 |date=September 2014 |pmid=25014039 |pmc=4221732 |doi=10.1097/BOR.0000000000000089 |url=}}</ref>:
* Plasma cells and B lymphocytes:
* Plasma cells and B lymphocytes:
Numbers of plasma cells(PC) are high in the kidney medulla of patients with severe lupus nephritis( LN). PCs and B cells produce auto antibodies. Increased number and activation of B cells may cause worsening proteinuria and severe damage.
Numbers of plasma cells(PC) are high in the kidney medulla of patients with severe lupus nephritis( LN). PCs and B cells produce auto antibodies. Increased number and activation of B cells may cause worsening proteinuria and severe damage.
Line 57: Line 57:
Tumor necrosis factor (TNF) is a cytokine (cell signaling protein) that play role in inflammation process. One of the sub types of TNF is TNF-like weak inducer of apoptosis (TWEAK) which has an important role in causing LN <ref name="pmid21303425">{{cite journal |vauthors=Lu J, Kwan BC, Lai FM, Choi PC, Tam LS, Li EK, Chow KM, Wang G, Li PK, Szeto CC |title=Gene expression of TWEAK/Fn14 and IP-10/CXCR3 in glomerulus and tubulointerstitium of patients with lupus nephritis |journal=Nephrology (Carlton) |volume=16 |issue=4 |pages=426–32 |date=May 2011 |pmid=21303425 |doi=10.1111/j.1440-1797.2011.01449.x |url=}}</ref>.
Tumor necrosis factor (TNF) is a cytokine (cell signaling protein) that play role in inflammation process. One of the sub types of TNF is TNF-like weak inducer of apoptosis (TWEAK) which has an important role in causing LN <ref name="pmid21303425">{{cite journal |vauthors=Lu J, Kwan BC, Lai FM, Choi PC, Tam LS, Li EK, Chow KM, Wang G, Li PK, Szeto CC |title=Gene expression of TWEAK/Fn14 and IP-10/CXCR3 in glomerulus and tubulointerstitium of patients with lupus nephritis |journal=Nephrology (Carlton) |volume=16 |issue=4 |pages=426–32 |date=May 2011 |pmid=21303425 |doi=10.1111/j.1440-1797.2011.01449.x |url=}}</ref>.


Fn14 ( TWEAK receptor) is interacted with TWEAK on renal mesangial, endothelial, tubular cells and podocytes <ref name="pmid16424220">{{cite journal |vauthors=Campbell S, Burkly LC, Gao HX, Berman JW, Su L, Browning B, Zheng T, Schiffer L, Michaelson JS, Putterman C |title=Proinflammatory effects of TWEAK/Fn14 interactions in glomerular mesangial cells |journal=J. Immunol. |volume=176 |issue=3 |pages=1889–98 |date=February 2006 |pmid=16424220 |doi= |url=}}</ref>. This interactions produce multiple inflammatory mediators which lead to LN.
Fn14 ( TWEAK receptor) is interacted with TWEAK on renal mesangial, endothelial, tubular cells and podocytes <ref name="pmid16424220">{{cite journal |vauthors=Campbell S, Burkly LC, Gao HX, Berman JW, Su L, Browning B, Zheng T, Schiffer L, Michaelson JS, Putterman C |title=Proinflammatory effects of TWEAK/Fn14 interactions in glomerular mesangial cells |journal=J. Immunol. |volume=176 |issue=3 |pages=1889–98 |date=February 2006 |pmid=16424220 |doi= |url=}}</ref>. This interactions produce multiple inflammatory mediators which lead to LN.  


''-'' '''Repair impairment and Tissue Scarring''':
'' Impairment in regulation and repair may cause tissue scars like:''
* Hyperproliferation of mesangial, endothelial, and podocyte loss.
-  
-  


Revision as of 19:25, 12 June 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2], Raviteja Guddeti, M.B.B.S. [3]

Overview

Pathophysiology

Systemic lupus erythematosus (SLE, or lupus) is an autoimmune disease. This means there is a problem with the body's immune system.

Normally, the immune system helps protect the body from harmful substances. But in patients with an autoimmune disease, the immune system cannot tell the difference between harmful substances and healthy ones. As a result, the immune system attacks otherwise healthy cells and tissue.

Overview

The exact pathogenesis of [disease name] is not fully understood.

OR

It is thought that [disease name] is the result of / is mediated by / is produced by / is caused by either [hypothesis 1], [hypothesis 2], or [hypothesis 3].

OR

[Pathogen name] is usually transmitted via the [transmission route] route to the human host.

OR

Following transmission/ingestion, the [pathogen] uses the [entry site] to invade the [cell name] cell.

OR


[Disease or malignancy name] arises from [cell name]s, which are [cell type] cells that are normally involved in [function of cells].

OR

The progression to [disease name] usually involves the [molecular pathway].

OR

The pathophysiology of [disease/malignancy] depends on the histological subtype.

Pathophysiology

Pathogenesis

Immune system, genetic, and environmental factors are considered in the pathogenesis of SLE.

- Immune system [1]:

  • Plasma cells and B lymphocytes:

Numbers of plasma cells(PC) are high in the kidney medulla of patients with severe lupus nephritis( LN). PCs and B cells produce auto antibodies. Increased number and activation of B cells may cause worsening proteinuria and severe damage.

B cells in LN patients have more MicroRNAs (miRNAs) which modulate gene expression [2]. Over expression of the miR-30a could lower the level of Lyn (type of protein tyrosine kinases), and lower level of Lyn may cause deposition of immune complexes in the kidney [3][4]. 

  • Macrophages:

Increase expression of Sialoadhesin (Sn), a macrophage-restricted adhesion molecule may play a role in causing sever LN [5].

  • Inflammatory cytokines:

Tumor necrosis factor (TNF) is a cytokine (cell signaling protein) that play role in inflammation process. One of the sub types of TNF is TNF-like weak inducer of apoptosis (TWEAK) which has an important role in causing LN [6].

Fn14 ( TWEAK receptor) is interacted with TWEAK on renal mesangial, endothelial, tubular cells and podocytes [7]. This interactions produce multiple inflammatory mediators which lead to LN.

- Repair impairment and Tissue Scarring:

 Impairment in regulation and repair may cause tissue scars like:

  • Hyperproliferation of mesangial, endothelial, and podocyte loss.

-

  • It is understood that [disease name] is the result of / is mediated by / is produced by / is caused by either [hypothesis 1], [hypothesis 2], or [hypothesis 3].
  • [Pathogen name] is usually transmitted via the [transmission route] route to the human host.
  • Following transmission/ingestion, the [pathogen] uses the [entry site] to invade the [cell name] cell.
  • [Disease or malignancy name] arises from [cell name]s, which are [cell type] cells that are normally involved in [function of cells].
  • The progression to [disease name] usually involves the [molecular pathway].
  • The pathophysiology of [disease/malignancy] depends on the histological subtype.

Genetics

interaction and mutation between below genes from multiple categories may cause severe LN[8] [9] [10] [11].

  • [Disease name] is transmitted in [mode of genetic transmission] pattern.
  • Genes involved in the pathogenesis of [disease name] include [gene1], [gene2], and [gene3].
  • The development of [disease name] is the result of multiple genetic mutations.

Associated Conditions

Gross Pathology

  • On gross pathology, [feature1], [feature2], and [feature3] are characteristic findings of [disease name].
Gross, enlarged very pale kidneys with flea bite or ectasia. A good example of kidneys from a patient with nephrotic syndrome (subacute glomerulonephritis)
Gross cut surface pale kidneys typical of nephrotic syndrome (subacute glomerulonephritis)
Gross natural color nice external and cut surface view of uniformly scarred and moderately shrunken kidneys
Micro high mag H&E increased mesangial tissue and wire loops 10yo female with renal failure and TIAs due to Libman Sacks endocarditis

Microscopic Pathology

  • On microscopic histopathological analysis, [feature1], [feature2], and [feature3] are characteristic findings of [disease name].
Kidney: Lupus Erythematosus: Micro high mag H&E. A nice example of a lesion of chronic glomerulonephritis with lobular scarring. A fibrous type crescent.
Kidney: Lupus Erythematosus: Micro high mag H&E two glomeruli showing mesangial thickening and focal wire loop type lesions 19yo female with renal failure and embolic brain disease from Libman Sacks lesion on mitral valve
Kidney: Lupus Erythematosus: Micro med mag PASH glomerulonephritis
Kidney: Lupus Erythematosus: Micro med mag H&E typical glomerulonephritis lesion

Videos

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References

  1. ↑ Schwartz N, Goilav B, Putterman C (September 2014). "The pathogenesis, diagnosis and treatment of lupus nephritis". Curr Opin Rheumatol. 26 (5): 502–9. doi:10.1097/BOR.0000000000000089. PMC 4221732. PMID 25014039.
  2. ↑ He L, Hannon GJ (July 2004). "MicroRNAs: small RNAs with a big role in gene regulation". Nat. Rev. Genet. 5 (7): 522–31. doi:10.1038/nrg1379. PMID 15211354.
  3. ↑ Yu CC, Yen TS, Lowell CA, DeFranco AL (January 2001). "Lupus-like kidney disease in mice deficient in the Src family tyrosine kinases Lyn and Fyn". Curr. Biol. 11 (1): 34–8. PMID 11166177.
  4. ↑ Liu Y, Dong J, Mu R, Gao Y, Tan X, Li Y, Li Z, Yang G (June 2013). "MicroRNA-30a promotes B cell hyperactivity in patients with systemic lupus erythematosus by direct interaction with Lyn". Arthritis Rheum. 65 (6): 1603–11. doi:10.1002/art.37912. PMID 23450709.
  5. ↑ Biesen R, Demir C, Barkhudarova F, Grün JR, Steinbrich-Zöllner M, Backhaus M, Häupl T, Rudwaleit M, Riemekasten G, Radbruch A, Hiepe F, Burmester GR, Grützkau A (April 2008). "Sialic acid-binding Ig-like lectin 1 expression in inflammatory and resident monocytes is a potential biomarker for monitoring disease activity and success of therapy in systemic lupus erythematosus". Arthritis Rheum. 58 (4): 1136–45. doi:10.1002/art.23404. PMID 18383365.
  6. ↑ Lu J, Kwan BC, Lai FM, Choi PC, Tam LS, Li EK, Chow KM, Wang G, Li PK, Szeto CC (May 2011). "Gene expression of TWEAK/Fn14 and IP-10/CXCR3 in glomerulus and tubulointerstitium of patients with lupus nephritis". Nephrology (Carlton). 16 (4): 426–32. doi:10.1111/j.1440-1797.2011.01449.x. PMID 21303425.
  7. ↑ Campbell S, Burkly LC, Gao HX, Berman JW, Su L, Browning B, Zheng T, Schiffer L, Michaelson JS, Putterman C (February 2006). "Proinflammatory effects of TWEAK/Fn14 interactions in glomerular mesangial cells". J. Immunol. 176 (3): 1889–98. PMID 16424220.
  8. ↑ Mohan C, Putterman C (June 2015). "Genetics and pathogenesis of systemic lupus erythematosus and lupus nephritis". Nat Rev Nephrol. 11 (6): 329–41. doi:10.1038/nrneph.2015.33. PMID 25825084.
  9. ↑ Morel L, Croker BP, Blenman KR, Mohan C, Huang G, Gilkeson G, Wakeland EK (June 2000). "Genetic reconstitution of systemic lupus erythematosus immunopathology with polycongenic murine strains". Proc. Natl. Acad. Sci. U.S.A. 97 (12): 6670–5. PMC 18697. PMID 10841565.
  10. ↑ Xie S, Mohan C (February 2004). "Divide and conquer--the power of congenic strains". Clin. Immunol. 110 (2): 109–11. doi:10.1016/j.clim.2003.09.007. PMID 15003808.
  11. ↑ Henry T, Mohan C (2005). "Systemic lupus erythematosus--recent clues from congenic strains". Arch. Immunol. Ther. Exp. (Warsz.). 53 (3): 207–12. PMID 15995581.
  12. ↑ Amarilyo G, Lourenço EV, Shi FD, La Cava A (July 2014). "IL-17 promotes murine lupus". J. Immunol. 193 (2): 540–3. doi:10.4049/jimmunol.1400931. PMID 24920843.
  13. ↑ Crispín JC, Apostolidis SA, Rosetti F, Keszei M, Wang N, Terhorst C, Mayadas TN, Tsokos GC (April 2012). "Cutting edge: protein phosphatase 2A confers susceptibility to autoimmune disease through an IL-17-dependent mechanism". J. Immunol. 188 (8): 3567–71. doi:10.4049/jimmunol.1200143. PMC 3324672. PMID 22422882.
  14. ↑ Jacob CO, Zang S, Li L, Ciobanu V, Quismorio F, Mizutani A, Satoh M, Koss M (August 2003). "Pivotal role of Stat4 and Stat6 in the pathogenesis of the lupus-like disease in the New Zealand mixed 2328 mice". J. Immunol. 171 (3): 1564–71. PMID 12874250.
  15. ↑ Zhou XJ, Cheng FJ, Qi YY, Zhao MH, Zhang H (2013). "A replication study from Chinese supports association between lupus-risk allele in TNFSF4 and renal disorder". Biomed Res Int. 2013: 597921. doi:10.1155/2013/597921. PMC 3713374. PMID 23936824.
  16. ↑ Triantafyllopoulou A, Franzke CW, Seshan SV, Perino G, Kalliolias GD, Ramanujam M, van Rooijen N, Davidson A, Ivashkiv LB (February 2010). "Proliferative lesions and metalloproteinase activity in murine lupus nephritis mediated by type I interferons and macrophages". Proc. Natl. Acad. Sci. U.S.A. 107 (7): 3012–7. doi:10.1073/pnas.0914902107. PMC 2840310. PMID 20133703.
  17. ↑ Clynes R, Dumitru C, Ravetch JV (February 1998). "Uncoupling of immune complex formation and kidney damage in autoimmune glomerulonephritis". Science. 279 (5353): 1052–4. PMID 9461440.
  18. ↑ Dang J, Shan S, Li J, Zhao H, Xin Q, Liu Y, Bian X, Liu Q (June 2014). "Gene-gene interactions of IRF5, STAT4, IKZF1 and ETS1 in systemic lupus erythematosus". Tissue Antigens. 83 (6): 401–8. doi:10.1111/tan.12349. PMID 24697319.
  19. ↑ Zhou TB, Liu YG, Lin N, Qin YH, Huang K, Shao MB, Peng DD (April 2012). "Relationship between angiotensin-converting enzyme insertion/deletion gene polymorphism and systemic lupus erythematosus/lupus nephritis: a systematic review and metaanalysis". J. Rheumatol. 39 (4): 686–93. doi:10.3899/jrheum.110863. PMID 22337243.
  20. ↑ Liu K, Li QZ, Delgado-Vega AM, Abelson AK, Sánchez E, Kelly JA, Li L, Liu Y, Zhou J, Yan M, Ye Q, Liu S, Xie C, Zhou XJ, Chung SA, Pons-Estel B, Witte T, de Ramón E, Bae SC, Barizzone N, Sebastiani GD, Merrill JT, Gregersen PK, Gilkeson GG, Kimberly RP, Vyse TJ, Kim I, D'Alfonso S, Martin J, Harley JB, Criswell LA, Wakeland EK, Alarcón-Riquelme ME, Mohan C (April 2009). "Kallikrein genes are associated with lupus and glomerular basement membrane-specific antibody-induced nephritis in mice and humans". J. Clin. Invest. 119 (4): 911–23. doi:10.1172/JCI36728. PMC 2662554. PMID 19307730.
  21. ↑ Brown EE, Edberg JC, Kimberly RP (December 2007). "Fc receptor genes and the systemic lupus erythematosus diathesis". Autoimmunity. 40 (8): 567–81. doi:10.1080/08916930701763710. PMID 18075791.
  22. ↑ Apostolidis SA, Rauen T, Hedrich CM, Tsokos GC, Crispín JC (September 2013). "Protein phosphatase 2A enables expression of interleukin 17 (IL-17) through chromatin remodeling". J. Biol. Chem. 288 (37): 26775–84. doi:10.1074/jbc.M113.483743. PMC 3772223. PMID 23918926.
  23. ↑ Bergtold A, Gavhane A, D'Agati V, Madaio M, Clynes R (November 2006). "FcR-bearing myeloid cells are responsible for triggering murine lupus nephritis". J. Immunol. 177 (10): 7287–95. PMID 17082647.
  24. ↑ Zhou XJ, Lv JC, Cheng WR, Yu L, Zhao MH, Zhang H (2010). "Association of TLR9 gene polymorphisms with lupus nephritis in a Chinese Han population". Clin. Exp. Rheumatol. 28 (3): 397–400. PMID 20497632.
  25. ↑ Kim SJ, Zou YR, Goldstein J, Reizis B, Diamond B (October 2011). "Tolerogenic function of Blimp-1 in dendritic cells". J. Exp. Med. 208 (11): 2193–9. doi:10.1084/jem.20110658. PMC 3201204. PMID 21948081.

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