Circulating anti-C3b IgG in lupus nephritis : A large cohort study

Copyright © 2020 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 217(2020) vom: 10. Aug., Seite 108514
1. Verfasser: Tao, Juan (VerfasserIn)
Weitere Verfasser: Song, Di, Liu, Xiao-Ling, Yu, Feng, Zhao, Ming-Hui
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Anti-C3b IgG Complement activation Lupus nephritis Autoantibodies CFH protein, human CR1 protein, human Immunoglobulin G Receptors, Complement 3b mehr... Complement C3b 80295-43-8 Complement Factor H 80295-65-4
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520 |a The current study aimed to analyze the clinical significance and bio-functional properties of anti-C3b IgG based on a lupus nephritis cohort. We found that the prevalence of anti-C3b IgG in our cohort was 47.8%. Patients with positive anti-C3b IgG had significantly higher SLEDAI, lower circulating C3 and C4 levels. Anti-C3b IgG levels were positively correlated with C3 or C1q deposition in kidneys and several active pathological lesions. The positivity of anti-C3b IgG was an independent risk factor for the composite endpoints in the subgroup of proliferative lupus nephritis patients. In vitro, the purified IgG fractions from positive patients resulted in increased C3a generation through the alternative pathway, and interfered factor H and CR1 binding to C3b. Our findings indicated that anti-C3b IgG associated with local renal injury and long-term outcomes in lupus nephritis patients, possibly through leading to the complement alternative pathway over-activation 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Anti-C3b IgG 
650 4 |a Complement activation 
650 4 |a Lupus nephritis 
650 7 |a Autoantibodies  |2 NLM 
650 7 |a CFH protein, human  |2 NLM 
650 7 |a CR1 protein, human  |2 NLM 
650 7 |a Immunoglobulin G  |2 NLM 
650 7 |a Receptors, Complement 3b  |2 NLM 
650 7 |a Complement C3b  |2 NLM 
650 7 |a 80295-43-8  |2 NLM 
650 7 |a Complement Factor H  |2 NLM 
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700 1 |a Song, Di  |e verfasserin  |4 aut 
700 1 |a Liu, Xiao-Ling  |e verfasserin  |4 aut 
700 1 |a Yu, Feng  |e verfasserin  |4 aut 
700 1 |a Zhao, Ming-Hui  |e verfasserin  |4 aut 
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