Characterizing the genetic basis of methylome diversity in histologically normal human lung tissue

Jianxin Shi, Crystal N. Marconett, Jubao Duan, Paula L. Hyland, Peng Li, Zhaoming Wang, William Wheeler, Beiyun Zhou, Mihaela Campan, Diane S. Lee, Jing Huang, Weiyin Zhou, Tim Triche, Laufey Amundadottir, Andrew Warner, Amy Hutchinson, Po Han Chen, Brian S.I. Chung, Angela C. Pesatori, Dario ConsonniPier A.lberto Bertazzi, Andrew W. Bergen, Mathew Freedman, Kimberly D. Siegmund, Benjamin P. Berman, Zea Borok, Nilanjan Chatterjee, Margaret A. Tucker, Neil E. Caporaso, Stephen J. Chanock, Ite A. Laird-Offringa, Maria T.eresa Landi

Research output: Contribution to journalArticlepeer-review

Abstract

The genetic regulation of the human epigenome is not fully appreciated. Here we describe the effects of genetic variants on the DNA methylome in human lung based on methylation-quantitative trait loci (meQTL) analyses. We report 34,304 cis- and 585 trans-meQTLs, a genetic-epigenetic interaction of surprising magnitude, including a regulatory hotspot. These findings are replicated in both breast and kidney tissues and show distinct patterns: cis-meQTLs mostly localize to CpG sites outside of genes, promoters and CpG islands (CGIs), while trans-meQTLs are over-represented in promoter CGIs. meQTL SNPs are enriched in CTCF-binding sites, DNaseI hypersensitivity regions and histone marks. Importantly, four of the five established lung cancer risk loci in European ancestry are cis-meQTLs and, in aggregate, cis-meQTLs are enriched for lung cancer risk in a genome-wide analysis of 11,587 subjects. Thus, inherited genetic variation may affect lung carcinogenesis by regulating the human methylome.

Original languageEnglish (US)
Article number3365
Pages (from-to)3365
Number of pages1
JournalNature communications
Volume5
DOIs
StatePublished - 2014

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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