Genome-Wide Meta-Analysis Identifies Three Novel Susceptibility Loci and Reveals Ethnic Heterogeneity of Genetic Susceptibility for IgA Nephropathy

被引：59

作者：

Li, Ming ^{[1
,2
]}

Wang, Ling ^{[3
]}

Shi, Dian-Chun ^{[1
,2
,4
]}

Foo, Jia-Nee ^{[3
,5
]}

Zhong, Zhong ^{[1
,2
]}

Khor, Chiea-Chuen ^{[3
,6
]}

Lanzani, Chiara ^{[7
]}

Citterio, Lorena ^{[7
]}

Salvi, Erika ^{[8
]}

Yin, Pei-Ran ^{[1
,2
]}

Bei, Jin-Xin ^{[9
,10
]}

Wang, Li ^{[11
]}

Liao, Yun-Hua ^{[12
]}

Chen, Jian ^{[13
]}

Chen, Qin-Kai ^{[14
]}

Xu, Gang ^{[15
]}

Jiang, Geng-Ru ^{[16
]}

Wan, Jian-Xin ^{[17
]}

Chen, Meng-Hua ^{[18
]}

Chen, Nan ^{[19
]}

Zhang, Hong ^{[20
]}

Zeng, Yi-Xin ^{[9
,10
]}

Liu, Zhi-Hong ^{[21
]}

Liu, Jian-Jun ^{[3
,4
,22
]}

Yu, Xue-Qing ^{[1
,2
,4
,23
]}

机构：

[1] Sun Yat Sen Univ, Affiliated Hosp 1, Dept Nephrol, Guangzhou 510080, Peoples R China

[2] Sun Yat Sen Univ, Guangdong Prov Key Lab Nephrol, Natl Hlth Commiss, Key Lab Nephrol, Guangzhou, Peoples R China

[3] ASTAR, Human Genet, Genome Inst Singapore, Singapore, Singapore

[4] Guangdong Prov Peoples Hosp, Guangzhou, Peoples R China

[5] Nanyang Technol Univ Singapore, Lee Kong Chian Sch Med, Singapore, Singapore

[6] Singapore Eye Res Inst, Singapore, Singapore

[7] Univ Vita Salute San Raffaele, Ist Ricovero & Cura Carattere Sci IRCCS, Genom Renal Dis & Hypertens Unit, San Raffaele Sci Inst, Milan, Italy

[8] IRCCS Neurol Inst Carlo Besta, Neurol Unit, Milan, Italy

[9] Sun Yat Sen Univ, Dept Expt Res, Canc Ctr, Guangzhou, Peoples R China

[10] Sun Yat Sen Univ, Collaborat Innovat Ctr Canc Med, Guangdong Key Lab Nasopharyngeal Carcinoma Diag &, State Key Lab Oncol South China,Canc Ctr, Guangzhou, Peoples R China

[11] Sichuan Prov Peoples Hosp, Dept Nephrol, Chengdu, Peoples R China

[12] Guangxi Med Univ, Affiliated Hosp 1, Dept Nephrol, Nanning, Peoples R China

[13] Fuzhou Gen Hosp Nanjing Mil Command, Dept Nephrol, Fuzhou, Peoples R China

[14] Nanchang Univ, Dept Nephrol, Affiliated Hosp 1, Nanchang, Jiangxi, Peoples R China

[15] Huazhong Univ Sci & Technol, Tongji Hosp, Dept Nephrol, Tongji Med Coll, Wuhan, Peoples R China

[16] Shanghai Jiao Tong Univ, XinHua Hosp, Sch Med, Dept Nephrol, Shanghai, Peoples R China

[17] Fujian Med Univ, Dept Nephrol, Affiliated Hosp 1, Fuzhou, Peoples R China

[18] Gen Hosp Ningxia Med Univ, Dept Nephrol, Yinchuan, Ningxia, Peoples R China

[19] Shanghai Jiao Tong Univ, RuiJin Hosp, Sch Med, Dept Nephrol, Shanghai, Peoples R China

[20] Peking Univ First Hosp, Peking Univ, Inst Nephrol, Renal Div, Beijing, Peoples R China

[21] Nanjing Univ, Jinling Hosp, Natl Clin Res Ctr Kidney Dis, Sch Med, Nanjing, Peoples R China

[22] ASTAR, Yong Loo Lin Sch Med, Genome Inst Singapore, Singapore, Singapore

[23] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Med, Singapore, Singapore

来源：

JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY | 2020年 / 31卷 / 12期

基金：

中国国家自然科学基金; 新加坡国家研究基金会;

关键词：

IgA nephropathy; meta-analysis; genome-wide association study; common variants; PRIMARY GLOMERULAR-DISEASES; EPIDEMIOLOGIC DATA; CHANGING SPECTRUM; ASSOCIATION; PROTEIN; VARIANT; FAMILY; FCRL3; IRF4; HLA;

D O I：

10.1681/ASN.2019080799

中图分类号：

R5 [内科学]; R69 [泌尿科学（泌尿生殖系疾病）];

学科分类号：

1002 ; 100201 ;

摘要：

Background Eighteen known susceptibility loci for IgAN account for only a small proportion of IgAN risk. Methods Genome-wide meta-analysis was performed in 2628 patients and 11,563 controls of Chinese ancestry, and a replication analysis was conducted in 6879 patients and 9019 controls of Chinese descent and 1039 patients and 1289 controls of European ancestry. The data were used to assess the association of susceptibility loci with clinical phenotypes for IgAN, and to investigate genetic heterogeneity of IgAN susceptibility between the two populations. Imputation- based analysis of theMHC/HLA region extended the scrutiny. Results Identification of three novel loci (rs6427389 on 1q23.1 [P=8.18x10(29), OR=1.132], rs6942325 on 6p25.3 [P=1.62x10(-11), OR=1.165], and rs2240335 on 1p36.13 [P=5.10x10(29), OR=1.114]), implicates FCRL3, DUSP22.IRF4, and PADI4 as susceptibility genes for IgAN. Rs2240335 is associated with the expression level of PADI4, and rs6427389 is in high linkage disequilibriumwith rs11264799, which showed a strong expression quantitative trail loci effect on FCRL3. Of the 24 confirmed risk SNPs, six showed significant heterogeneity of genetic effects and DEFA showed clear evidence of allelic heterogeneity between the populations. Imputation-based analysis of the MHC region revealed significant associations at three HLA polymorphisms (HLA allele DPB1*02, AA_DRB1_140_32657458_T, and AA_DQA1_34_32717152) and two SNPs (rs9275464 and rs2295119). Conclusions A meta-analysis of GWAS data revealed three novel genetic risk loci for IgAN, and three HLA polymorphisms and two SNPs within the MHC region, and demonstrated the genetic heterogeneity of seven loci out of 24 confirmed risk SNPs. These variants may explain susceptibility differences between Chinese and European populations.

引用

页码：2949 / 2963

页数：15

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