Complement system is overactivated in patients with IgA nephropathy after COVID-19

Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 263(2024) vom: 01. Juni, Seite 110232
1. Verfasser: Guo, Wei-Yi (VerfasserIn)
Weitere Verfasser: Wang, Guo-Qin, Kong, Ling-Qiang, Sun, Li-Jun, Xu, Xiao-Yi, Cheng, Wen-Rong, Dong, Hong-Rui, Cheng, Hong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article COVID-19 Complement system Gd-IgA1 IgA nephropathy
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520 |a IgA nephropathy (IgAN), which has been confirmed as a complement mediated autoimmune disease, is also one form of glomerulonephritis associated with COVID-19. Here, we aim to investigate the clinical and immunological characteristics of patients with IgAN after COVID-19. The level of plasma level of C5a (p < 0.001), soluble C5b-9 (p = 0.018), FHR5 (p < 0.001) were all significantly higher in Group CoV (33 patients with renal biopsy-proven IgAN experienced COVID-19) compared with Group non-CoV (44 patients with IgAN without COVID-19), respectively. Compared with Group non-CoV, the intensity of glomerular C4d (p = 0.017) and MAC deposition (p < 0.001) and Gd-IgA1 deposition (p = 0.005) were much stronger in Group CoV. Our finding revealed that for IgAN after COVID-19, mucosal immune responses to SARS-CoV-2 infection may result in the overactivation of systemic and renal local complement system, and increased glomerular deposition of Gd-IgA1, which may lead to renal dysfunction and promote renal progression in IgAN patients 
650 4 |a Journal Article 
650 4 |a COVID-19 
650 4 |a Complement system 
650 4 |a Gd-IgA1 
650 4 |a IgA nephropathy 
700 1 |a Wang, Guo-Qin  |e verfasserin  |4 aut 
700 1 |a Kong, Ling-Qiang  |e verfasserin  |4 aut 
700 1 |a Sun, Li-Jun  |e verfasserin  |4 aut 
700 1 |a Xu, Xiao-Yi  |e verfasserin  |4 aut 
700 1 |a Cheng, Wen-Rong  |e verfasserin  |4 aut 
700 1 |a Dong, Hong-Rui  |e verfasserin  |4 aut 
700 1 |a Cheng, Hong  |e verfasserin  |4 aut 
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