Identification of new susceptibility loci for IgA nephropathy in Han Chinese

Ming Li, Jia Nee Foo, Jin Quan Wang, Hui Qi Low, Xue Qing Tang, Kai Yee Toh, Pei Ran Yin, Chiea Chuen Khor, Yu Fen Goh, Ishak D. Irwan, Ri Cong Xu, Anand K. Andiappan, Jin Xin Bei, Olaf Rotzschke, Meng Hua Chen, Ching Yu Cheng, Liang Dan Sun, Geng Ru Jiang, Tien Yin Wong, Hong Li LinTin Aung, Yun Hua Liao, Seang Mei Saw, Kun Ye, Richard P. Ebstein, Qin Kai Chen, Wei Shi, Soo Hong Chew, Jian Chen, Fu Ren Zhang, Sheng Ping Li, Gang Xu, E. Shyong Tai, Li Wang, Nan Chen, Xue Jun Zhang, Yi Xin Zeng, Hong Zhang, Zhi Hong Liu, Xue Qing Yu*, Jian Jun Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

113 Citations (Scopus)

Abstract

IgA nephropathy (IgAN) is one of the most common primary glomerulonephritis. Previously identified genome-wide association study (GWAS) loci explain only a fraction of disease risk. To identify novel susceptibility loci in Han Chinese, we conduct a four-stage GWAS comprising 8,313 cases and 19,680 controls. Here, we show novel associations at ST6GAL1 on 3q27.3 (rs7634389, odds ratio (OR)=1.13, P=7.27 × 10-10), ACCS on 11p11.2 (rs2074038, OR=1.14, P=3.93 × 10-9) and ODF1-KLF10 on 8q22.3 (rs2033562, OR=1.13, P=1.41 × 10-9), validate a recently reported association at ITGAX-ITGAM on 16p11.2 (rs7190997, OR=1.22, P=2.26 × 10-19), and identify three independent signals within the DEFA locus (rs2738058, P=1.15 × 10-19; rs12716641, P=9.53 × 10-9; rs9314614, P=4.25 × 10-9, multivariate association). The risk variants on 3q27.3 and 11p11.2 show strong association with mRNA expression levels in blood cells while allele frequencies of the risk variants within ST6GAL1, ACCS and DEFA correlate with geographical variation in IgAN prevalence. Our findings expand our understanding on IgAN genetic susceptibility and provide novel biological insights into molecular mechanisms underlying IgAN.

Original languageEnglish
Article number7270
JournalNature Communications
Volume6
DOIs
Publication statusPublished - Jun 1 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Macmillan Publishers Limited. All rights reserved.

ASJC Scopus Subject Areas

  • General Chemistry
  • General Biochemistry,Genetics and Molecular Biology
  • General Physics and Astronomy

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