Integrative genomic analyses identify susceptibility genes underlying COVID-19 hospitalization

Nat Commun. 2021 Jul 27;12(1):4569. doi: 10.1038/s41467-021-24824-z.

Abstract

Despite rapid progress in characterizing the role of host genetics in SARS-Cov-2 infection, there is limited understanding of genes and pathways that contribute to COVID-19. Here, we integrate a genome-wide association study of COVID-19 hospitalization (7,885 cases and 961,804 controls from COVID-19 Host Genetics Initiative) with mRNA expression, splicing, and protein levels (n = 18,502). We identify 27 genes related to inflammation and coagulation pathways whose genetically predicted expression was associated with COVID-19 hospitalization. We functionally characterize the 27 genes using phenome- and laboratory-wide association scans in Vanderbilt Biobank (n = 85,460) and identified coagulation-related clinical symptoms, immunologic, and blood-cell-related biomarkers. We replicate these findings across trans-ethnic studies and observed consistent effects in individuals of diverse ancestral backgrounds in Vanderbilt Biobank, pan-UK Biobank, and Biobank Japan. Our study highlights and reconfirms putative causal genes impacting COVID-19 severity and symptomology through the host inflammatory response.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • COVID-19 / genetics
  • COVID-19 / metabolism*
  • Genetic Predisposition to Disease / genetics
  • Genome-Wide Association Study
  • Hospitalization
  • Humans
  • Polymorphism, Single Nucleotide / genetics
  • Risk Factors