Mesangial Cell-Specific Antibodies Are Central to the Pathogenesis of Lupus Nephritis

Not only is nephritis a common complaint in systemic lupus erythematosus, but it is also the most life-threatening complication of the disease. Anti-double-stranded DNA antibodies (Abs), which are found in up to 80% of these patients, might be nephritogenic per se. That is, they may cross-react with...

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Main Authors: Guillaume Seret, Yannick Le Meur, Yves Renaudineau, Pierre Youinou
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Clinical and Developmental Immunology
Online Access:http://dx.doi.org/10.1155/2012/579670
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author Guillaume Seret
Yannick Le Meur
Yves Renaudineau
Pierre Youinou
author_facet Guillaume Seret
Yannick Le Meur
Yves Renaudineau
Pierre Youinou
author_sort Guillaume Seret
collection DOAJ
description Not only is nephritis a common complaint in systemic lupus erythematosus, but it is also the most life-threatening complication of the disease. Anti-double-stranded DNA antibodies (Abs), which are found in up to 80% of these patients, might be nephritogenic per se. That is, they may cross-react with mesangial cell (MC) surface proteins, such as alpha-actinin and annexin A2, they may cross-react with mesangial matrix protein such as laminine and fibronectin, or they may recognize chromatin material previously deposited in the glomeruli. The consequence of the binding of anti-MC Abs may be their internalization, which results in activation and proliferation of these MCs. In turn, these activated MCs are suspected of promoting immune complex formation by sequestering and thereby protecting chromatin from degradation. The present paper will explain the mechanisms through which such autoAbs may initiate nephritis.
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series Clinical and Developmental Immunology
spelling doaj-art-a9ba57bf124542d49b9f5a2ae244e92f2025-08-20T02:20:41ZengWileyClinical and Developmental Immunology1740-25221740-25302012-01-01201210.1155/2012/579670579670Mesangial Cell-Specific Antibodies Are Central to the Pathogenesis of Lupus NephritisGuillaume Seret0Yannick Le Meur1Yves Renaudineau2Pierre Youinou3EA2216 “Immunology & Pathology” and IFR146 “ScInBios,” European University of Brittany, 29200 Brest, FranceEA2216 “Immunology & Pathology” and IFR146 “ScInBios,” European University of Brittany, 29200 Brest, FranceEA2216 “Immunology & Pathology” and IFR146 “ScInBios,” European University of Brittany, 29200 Brest, FranceEA2216 “Immunology & Pathology” and IFR146 “ScInBios,” European University of Brittany, 29200 Brest, FranceNot only is nephritis a common complaint in systemic lupus erythematosus, but it is also the most life-threatening complication of the disease. Anti-double-stranded DNA antibodies (Abs), which are found in up to 80% of these patients, might be nephritogenic per se. That is, they may cross-react with mesangial cell (MC) surface proteins, such as alpha-actinin and annexin A2, they may cross-react with mesangial matrix protein such as laminine and fibronectin, or they may recognize chromatin material previously deposited in the glomeruli. The consequence of the binding of anti-MC Abs may be their internalization, which results in activation and proliferation of these MCs. In turn, these activated MCs are suspected of promoting immune complex formation by sequestering and thereby protecting chromatin from degradation. The present paper will explain the mechanisms through which such autoAbs may initiate nephritis.http://dx.doi.org/10.1155/2012/579670
spellingShingle Guillaume Seret
Yannick Le Meur
Yves Renaudineau
Pierre Youinou
Mesangial Cell-Specific Antibodies Are Central to the Pathogenesis of Lupus Nephritis
Clinical and Developmental Immunology
title Mesangial Cell-Specific Antibodies Are Central to the Pathogenesis of Lupus Nephritis
title_full Mesangial Cell-Specific Antibodies Are Central to the Pathogenesis of Lupus Nephritis
title_fullStr Mesangial Cell-Specific Antibodies Are Central to the Pathogenesis of Lupus Nephritis
title_full_unstemmed Mesangial Cell-Specific Antibodies Are Central to the Pathogenesis of Lupus Nephritis
title_short Mesangial Cell-Specific Antibodies Are Central to the Pathogenesis of Lupus Nephritis
title_sort mesangial cell specific antibodies are central to the pathogenesis of lupus nephritis
url http://dx.doi.org/10.1155/2012/579670
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AT pierreyouinou mesangialcellspecificantibodiesarecentraltothepathogenesisoflupusnephritis