Heritability enrichment of specifically expressed genes identifies disease-relevant tissues and cell types.

ABSTRACT: We introduce an approach to identify disease-relevant tissues and cell types by analyzing gene expression data together with genome-wide association study (GWAS) summary statistics. Our approach uses stratified linkage disequilibrium (LD) score regression to test whether disease heritability is enriched in regions surrounding genes with the highest specific expression in a given tissue. We applied our approach to gene expression data from several sources together with GWAS summary statistics for 48 diseases and traits (average N = 169,331) and found significant tissue-specific enrichments (false discovery rate (FDR) < 5%) for 34 traits. In our analysis of multiple tissues, we detected a broad range of enrichments that recapitulated known biology. In our brain-specific analysis, significant

SUBMITTER: Finucane HK 

PROVIDER: S-EPMC5896795 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature