Genetic determinants of antithyroid drug-induced agranulocytosis by human leukocyte antigen genotyping and genome-wide association study

Pei Lung Chen, Shyang Rong Shih, Pei Wen Wang, Ying Chao Lin, Chen Chung Chu, Jung Hsin Lin, Szu Chi Chen, Ching Chung Chang, Tien Shang Huang, Keh Sung Tsai, Fen Yu Tseng, Chih Yuan Wang, Jin Ying Lu, Wei Yih Chiu, Chien Ching Chang, Yu Hsuan Chen, Yuan Tsong Chen, Cathy Shen Jang Fann*, Wei Shiung Yang, Tien Chun Chang

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

81 Scopus citations

Abstract

Graves' disease is the leading cause of hyperthyroidism affecting 1.0-1.6% of the population. Antithyroid drugs are the treatment cornerstone, but may cause life-threatening agranulocytosis. Here we conduct a two-stage association study on two separate subject sets (in total 42 agranulocytosis cases and 1,208 Graves' disease controls), using direct human leukocyte antigen genotyping and SNP-based genome-wide association study. We demonstrate HLA-B∗38:02 (Armitage trend Pcombined =6.75 × 10 -32) and HLA-DRB1∗08:03 (P combined =1.83 × 10 -9) as independent susceptibility loci. The genome-wide association study identifies the same signals. Estimated odds ratios for these two loci comparing effective allele carriers to non-carriers are 21.48 (95% confidence interval=11.13-41.48) and 6.13 (95% confidence interval=3.28-11.46), respectively. Carrying both HLA-B∗38:02 and HLA-DRB1∗08:03 increases odds ratio to 48.41 (P combined =3.32 × 10 -21, 95% confidence interval=21.66-108.22). Our results could be useful for antithyroid-induced agranulocytosis and potentially for agranulocytosis caused by other chemicals.

Original languageEnglish
Article number7633
JournalNature Communications
Volume6
DOIs
StatePublished - 07 07 2015

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