Meta-analysis of up to 622,409 individuals identifies 40 novel smoking behaviour associated genetic loci

Publication Abstract

Erzurumluoglu, A. Mesut, Jennifer A. Smith, Sharon L. R. Kardia, David Weir, Jessica Faul, Mengzhen Liu, Victoria E. Jackson, Daniel R. Barnes, et al. Forthcoming. "Meta-analysis of up to 622,409 individuals identifies 40 novel smoking behaviour associated genetic loci." Molecular Psychiatry.

Smoking is a major heritable and modifiable risk factor for many diseases, including cancer, common respiratory disorders and cardiovascular diseases. Fourteen genetic loci have previously been associated with smoking behaviour-related traits. We tested up to 235,116 single nucleotide variants (SNVs) on the exome-array for association with smoking initiation, cigarettes per day, pack-years, and smoking cessation in a fixed effects meta-analysis of up to 61 studies (up to 346,813 participants). In a subset of 112,811 participants, a further one million SNVs were also genotyped and tested for association with the four smoking behaviour traits. SNV-trait associations with P < 5 × 10−8 in either analysis were taken forward for replication in up to 275,596 independent participants from UK Biobank. Lastly, a meta-analysis of the discovery and replication studies was performed. Sixteen SNVs were associated with at least one of the smoking behaviour traits (P < 5 × 10−8) in the discovery samples. Ten novel SNVs, including rs12616219 near TMEM182, were followed-up and five of them (rs462779 in REV3L, rs12780116 in CNNM2, rs1190736 in GPR101, rs11539157 in PJA1, and rs12616219 near TMEM182) replicated at a Bonferroni significance threshold (P < 4.5 × 10−3) with consistent direction of effect. A further 35 SNVs were associated with smoking behaviour traits in the discovery plus replication meta-analysis (up to 622,409 participants) including a rare SNV, rs150493199, in CCDC141 and two low-frequency SNVs in CEP350 and HDGFRP2. Functional follow-up implied that decreased expression of REV3L may lower the probability of smoking initiation. The novel loci will facilitate understanding the genetic aetiology of smoking behaviour and may lead to the identification of potential drug targets for smoking prevention and/or cessation.

10.1038/s41380-018-0313-0

Browse | Search | Next

PSC In The News

RSS Feed icon

Barbara Anderson comments in NYT on Federal Law that protects citienship status data from distribution by the Census Bureau. @UM_PSC

Anderson discusses impact of Administration's ongoing pursuit of Citizenship information around the 2020 Census with Michigan Radio

Burgard correlates job insecurity higher with negative overall health and depression than the impact of job loss and regain

More News

Highlights

Colter Mitchell receives Presidential Early Career Award for Scientists and Engineers (PECASE)

Frey receives 2019 ASA Distinguished Contributions to Teaching Award

More Highlights


Connect with PSC follow PSC on Twitter Like PSC on Facebook