Common Genetic Variation in Humans Impacts In Vitro Susceptibility to SARS-CoV-2 Infection

Stem Cell Reports. 2021 Mar 9;16(3):505-518. doi: 10.1016/j.stemcr.2021.02.010. Epub 2021 Feb 13.

Abstract

The host response to SARS-CoV-2, the etiologic agent of the COVID-19 pandemic, demonstrates significant interindividual variability. In addition to showing more disease in males, the elderly, and individuals with underlying comorbidities, SARS-CoV-2 can seemingly afflict healthy individuals with profound clinical complications. We hypothesize that, in addition to viral load and host antibody repertoire, host genetic variants influence vulnerability to infection. Here we apply human induced pluripotent stem cell (hiPSC)-based models and CRISPR engineering to explore the host genetics of SARS-CoV-2. We demonstrate that a single-nucleotide polymorphism (rs4702), common in the population and located in the 3' UTR of the protease FURIN, influences alveolar and neuron infection by SARS-CoV-2 in vitro. Thus, we provide a proof-of-principle finding that common genetic variation can have an impact on viral infection and thus contribute to clinical heterogeneity in COVID-19. Ongoing genetic studies will help to identify high-risk individuals, predict clinical complications, and facilitate the discovery of drugs.

Keywords: FURIN rs4702; SARS-CoV-2; brain; host genetics; human induced pluripotent stem cell; neurons.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • 3' Untranslated Regions / genetics
  • Adolescent
  • Adult
  • Animals
  • COVID-19 / genetics*
  • COVID-19 / virology
  • Cell Line
  • Chlorocebus aethiops
  • Clustered Regularly Interspaced Short Palindromic Repeats / genetics
  • Female
  • Furin / genetics
  • Genetic Predisposition to Disease / genetics*
  • Host-Pathogen Interactions / genetics
  • Humans
  • Induced Pluripotent Stem Cells / virology
  • Male
  • Neurons / virology
  • Peptide Hydrolases / genetics
  • Polymorphism, Single Nucleotide / genetics*
  • SARS-CoV-2 / pathogenicity
  • Vero Cells

Substances

  • 3' Untranslated Regions
  • Peptide Hydrolases
  • Furin