Multi-trait genome-wide association study of opioid addiction: OPRM1 and Beyond

Author:

Gaddis Nathan,Mathur RaviORCID,Marks JesseORCID,Zhou Linran,Quach BryanORCID,Waldrop Alex,Levran OrnaORCID,Agrawal ArpanaORCID,Randesi MatthewORCID,Adelson Miriam,Jeffries Paul W.,Johnson Emma C.ORCID,Martin Nicholas G.ORCID,Degenhardt LouisaORCID,Montgomery Grant WORCID,Wetherill LeahORCID,Lai DongbingORCID,Bucholz KathleenORCID,Foroud TatianaORCID,Porjesz BerniceORCID,Webb Bradley Todd,Crist Richard C.ORCID,Kranzler Henry R.,Zhou Hang,Hulse GaryORCID,Wildenauer DieterORCID,Kelty ErinORCID,Attia JohnORCID,Holliday Elizabeth G.ORCID,McEvoy MarkORCID,Scott Rodney J.ORCID,Schwab Sibylle GORCID,Maher Brion S.ORCID,Gruza Richard,Kreek Mary-JeanneORCID,Nelson Elliot C.ORCID,Berrettini Wade H.ORCID,Gelernter JoelORCID,Edenberg HowardORCID,Bierut Laura,Hancock Dana B.,Johnson Eric O.ORCID

Abstract

AbstractOpioid addiction (OA) has strong heritability, yet few genetic variant associations have been robustly identified. Only rs1799971, the A118G variant in OPRM1, has been identified as a genome-wide significant association with OA and independently replicated. We applied genomic structural equation modeling to conduct a GWAS of the new Genetics of Opioid Addiction Consortium (GENOA) data and published studies (Psychiatric Genomics Consortium, Million Veteran Program, and Partners Health), comprising 23,367 cases and effective sample size of 88,114 individuals of European ancestry. Genetic correlations among the various OA phenotypes were uniformly high (rg > 0.9). We observed the strongest evidence to date for OPRM1: lead SNP rs9478500 (p=2.56×10−9). Gene-based analyses identified novel genome-wide significant associations with PPP6C and FURIN. Variants within these loci appear to be pleiotropic for addiction and related traits.

Publisher

Cold Spring Harbor Laboratory

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