Genetic Variant CFH rs6677604 Might Play a Protective Role in lupus Nephritis.

This study aimed to explore the associations between the complement factor H (CFH) rs6677604 and clinico-pathological characteristics of lupus nephritis. A total of 188 patients with lupus nephritis with complete clinico-pathological data were enrolled and genotyping of CFH rs6677604 was conducted by TaqMan SNP genotyping assays. Patients were divided into two groups by rs6677604-AA/AG or -GG, and the clinico-pathological features between the two groups were further compared. We found that patients with rs6677604-AA/AG presented with lower prevalence of anti-dsDNA antibody (12/24 [50.0%] vs 121/164 [73.8%], P = 0.028), higher level of plasma C3a (2642.96 ± 1575.05 vs 1640.01 ± 1209.40, ng/ml, P = 0.024), and a tendency for higher level of plasma CFH (505.76 ± 169.28 vs 397.67 ± 179.11, μg/ml, P = 0.087). Patients with rs6677604-AA/AG had milder renal histopathological features, including total activity indices score (4.5[0, 13] vs 8[0, 19], P = 0.013), endocapillary hypercellularity (1.5[0, 3] vs 3[0, 3], P = 0.013), sub-endothelial hyaline deposits (0.5[0, 3] vs 1[0,3], P = 0.021), glomerular leukocyte infiltration (0.5[0, 1] vs 1[0, 12], P = 0.023) and tubular atrophy (1[0, 1] vs 1[0, 3], P = 0.027) than those with rs6677604-GG, which was further confirmed by the stratified analysis. The rs6677604-A was not a risk factor for patients' renal outcomes (hazard ratio=0.898; 95% CI: 0.264-3.059, P = 0.863). The rs6677604-A genotype in CFH was associated with milder renal pathological features in lupus nephritis, and its protective effect on the pathogenesis of the disease remained to be elucidated. Copyright © 2020. Published by Elsevier Inc.

Citation

Juan Tao, Meng Tan, Lin-Lin Li, Hong Chu, Di Song, Ying Tan, Su-Xia Wang, Zhen Qu, Feng Yu. Genetic Variant CFH rs6677604 Might Play a Protective Role in lupus Nephritis. The American journal of the medical sciences. 2021 Mar;361(3):336-343

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PMID: 33309135

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