Functional landscape of SARS-CoV-2 cellular restriction

Laura Martin-Sancho, Mary K. Lewinski, Lars Pache, Charlotte A. Stoneham, Xin Yin, Mark E. Becker, Dexter Pratt, Christopher Churas, Sara B. Rosenthal, Sophie Liu, Stuart Weston, Paul D. De Jesus, Alan M. O'Neill, Anshu P. Gounder, Courtney Nguyen, Yuan Pu, Heather M. Curry, Aaron L. Oom, Lisa Miorin, Ariel Rodriguez-FrandsenFan Zheng, Chunxiang Wu, Yong Xiong, Matthew Urbanowski, Megan L. Shaw, Max W. Chang, Christopher Benner, Thomas J. Hope, Matthew B. Frieman, Adolfo García-Sastre, Trey Ideker, Judd F. Hultquist, John Guatelli, Sumit K. Chanda*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A deficient interferon (IFN) response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has been implicated as a determinant of severe coronavirus disease 2019 (COVID-19). To identify the molecular effectors that govern IFN control of SARS-CoV-2 infection, we conducted a large-scale gain-of-function analysis that evaluated the impact of human IFN-stimulated genes (ISGs) on viral replication. A limited subset of ISGs were found to control viral infection, including endosomal factors inhibiting viral entry, RNA binding proteins suppressing viral RNA synthesis, and a highly enriched cluster of endoplasmic reticulum (ER)/Golgi-resident ISGs inhibiting viral assembly/egress. These included broad-acting antiviral ISGs and eight ISGs that specifically inhibited SARS-CoV-2 and SARS-CoV-1 replication. Among the broad-acting ISGs was BST2/tetherin, which impeded viral release and is antagonized by SARS-CoV-2 Orf7a protein. Overall, these data illuminate a set of ISGs that underlie innate immune control of SARS-CoV-2/SARS-CoV-1 infection, which will facilitate the understanding of host determinants that impact disease severity and offer potential therapeutic strategies for COVID-19.

Original languageEnglish (US)
Pages (from-to)2656-2668.e8
JournalMolecular cell
Volume81
Issue number12
DOIs
StatePublished - Jun 17 2021

Keywords

  • BST2
  • ISG
  • Orf7a
  • SARS-CoV-2
  • innate immunity
  • interferon
  • viral evasion

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology

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