Functional genomic screens identify human host factors for SARS-CoV-2 and common cold coronaviruses.

BioRxiv : the Preprint Server for Biology
Ruofan WangAndreas S Puschnik

Abstract

The Coronaviridae are a family of viruses that causes disease in humans ranging from mild respiratory infection to potentially lethal acute respiratory distress syndrome. Finding host factors that are common to multiple coronaviruses could facilitate the development of therapies to combat current and future coronavirus pandemics. Here, we conducted parallel genome-wide CRISPR screens in cells infected by SARS-CoV-2 as well as two seasonally circulating common cold coronaviruses, OC43 and 229E. This approach correctly identified the distinct viral entry factors ACE2 (for SARS-CoV-2), aminopeptidase N (for 229E) and glycosaminoglycans (for OC43). Additionally, we discovered phosphatidylinositol phosphate biosynthesis and cholesterol homeostasis as critical host pathways supporting infection by all three coronaviruses. By contrast, the lysosomal protein TMEM106B appeared unique to SARS-CoV-2 infection. Pharmacological inhibition of phosphatidylinositol phosphate biosynthesis and cholesterol homeostasis reduced replication of all three coronaviruses. These findings offer important insights for the understanding of the coronavirus life cycle as well as the potential development of host-directed therapies.

Citations

Oct 19, 2020·Protein Science : a Publication of the Protein Society·Rose OughtredMike Tyers
Jan 6, 2021·Emerging Microbes & Infections·Zhenyu ZhaoYong Lin
May 10, 2021·Frontiers in Cellular and Infection Microbiology·Ronghua DingGuangcai Duan
Jan 9, 2021·ACS Infectious Diseases·Mark N Namchuk

Methods Mentioned

BETA
GTPase

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