A prenylated dsRNA sensor protects against severe COVID-19.
Science
; 374(6567): eabj3624, 2021 Oct 29.
Article
in English
| MEDLINE | ID: covidwho-1440797
ABSTRACT
Inherited genetic factors can influence the severity of COVID-19, but the molecular explanation underpinning a genetic association is often unclear. Intracellular antiviral defenses can inhibit the replication of viruses and reduce disease severity. To better understand the antiviral defenses relevant to COVID-19, we used interferon-stimulated gene (ISG) expression screening to reveal that 2'-5'-oligoadenylate synthetase 1 (OAS1), through ribonuclease L, potently inhibits severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We show that a common splice-acceptor single-nucleotide polymorphism (Rs10774671) governs whether patients express prenylated OAS1 isoforms that are membrane-associated and sense-specific regions of SARS-CoV-2 RNAs or if they only express cytosolic, nonprenylated OAS1 that does not efficiently detect SARS-CoV-2. In hospitalized patients, expression of prenylated OAS1 was associated with protection from severe COVID-19, suggesting that this antiviral defense is a major component of a protective antiviral response.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
2',5'-Oligoadenylate Synthetase
/
RNA, Double-Stranded
/
RNA, Viral
/
SARS-CoV-2
/
COVID-19
Type of study:
Diagnostic study
/
Prognostic study
Limits:
Animals
/
Humans
Language:
English
Journal:
Science
Year:
2021
Document Type:
Article
Affiliation country:
Science.abj3624
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