Joint analysis of gene expression and genome-wide
association studies reveals genes responsible for
common disease risk
Nicholas Mancuso, PhD Postdoctoral fellow
Department of Pathology and Laboratory Medicine
Geffen School of Medicine
University of California, Los Angeles
Genome-wide association studies (GWASs) have been
successful at mapping common disease risk to specific genomic
regions. However, with a few notable exceptions, the underlying
causal mechanisms responsible for inherited disease risk are still unknown. In this talk I will present computational approaches
that integrate total and splicing gene expression with large-scale
GWASs to identify genes responsible for disease risk. In
particular, I will introduce methods to test for association between
gene or isoform-specific expression and complex trait using
publicly available summary statistics. I illustrate its use with
results integrating gene expression from 48 gene expression
panels with summary data from 30 publicly-available GWASs and
a recent large-scale GWAS in prostate cancer. Lastly, I will
present recent work to statistically fine-map gene-disease
associations in a Bayesian context to produce credible-sets of
genes with motivation through lipids GWAS.