PLA2R1 and HLA-DQA1 gene variations in idiopathic membranous nephropathy in South China

作者：Fan Wang, Tingting Wang, Xiaowan Liang, Jianda Lu, Qionghong Xie, Ruiying Chen, Jun Xue · 发表于：Annals of the Academy of Medicine Singapore · 年份：2021 · DOI：10.47102/annals-acadmedsg.2020138 · 被引用次数：7 · 研究领域：Renal Diseases and Glomerulopathies、Vasculitis and related conditions、Coagulation, Bradykinin, Polyphosphates, and Angioedema

ABSTRACT Introduction: Associations of variations in PLA2R1 and HLA-DQA1 genes with susceptibility to idiopathic membranous nephropathy (IMN) have been well documented. Association with spontaneous remission, however, is poorly defined in the Chinese Han population. Methods: A Chinese cohort of 117 IMN patients and 138 healthy controls were recruited between July 2009 and November 2019. Case-control studies for single-nucleotide polymorphisms (SNPs) within HLA-DQA1 (rs2187668) and PLA2R1 (rs35771982, rs4664308, rs3749117, rs3749119) genes were performed. The contributions of these polymorphisms to predict susceptibility, titre of autoantibodies against the M-type phospholipase A2 receptor (anti-PLA2R1), glomerular PLA2R1 expression, and spontaneous remission were analysed. Results: We found that variations in PLA2R1 (SNPs rs35771982, rs4664308, rs3749117) were strongly associated with IMN susceptibility, while SNP (rs2187668) within HLA-DQA1 did not increase the risk of IMN. All SNPs in PLA2R1 and HLA-DQA1 were not statistically associated with anti-PLA2R1 titre, glomerular PLA2R1 expression and spontaneous remission after Bonferroni correction (P>0.0167). Clinical and pathological parameters such as lower levels of serum albumin, higher levels of anti-PLA2R1 and glomerular PLA2R1 expression were independent risk factors for non-spontaneous remission. Conclusion: This study confirms that variations in PLA2R1 (SNPs rs35771982, rs4664308, rs3749117) are risk factors for IMN....