J 2021

ADAR RNA Modifications, the Epitranscriptome and Innate Immunity

QUIN, Jaclyn Elizabeth; Jiří SEDMÍK; Dragana VUKIĆ; Anzer KHAN; Liam KEEGAN et al.

Basic information

Original name

ADAR RNA Modifications, the Epitranscriptome and Innate Immunity

Authors

QUIN, Jaclyn Elizabeth; Jiří SEDMÍK; Dragana VUKIĆ; Anzer KHAN; Liam KEEGAN and Mary Anne O'CONNELL

Edition

Trends in Biochemical Sciences, Cambridge (MA), Cell Press, 2021, 0968-0004

Other information

Language

English

Type of outcome

Article in a journal

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

is not subject to a state or trade secret

References:

Marked to be transferred to RIV

Yes

RIV identification code

RIV/00216224:14740/21:00118989

Organization

Středoevropský technologický institut – Repository – Repository

EID Scopus

Keywords in English

RNA editing; double-stranded RNA (dsRNA); pattern recognition receptors (PRRs); interferon; antiviral responses; autoinflammatory disease

Links

GA19-16963S, research and development project. GA20-11101S, research and development project. GX21-27329X, research and development project. LTC18052, research and development project. 867470, interní kód Repo.
Changed: 6/5/2022 03:46, RNDr. Daniel Jakubík

Abstract

In the original language

Modified bases act as marks on cellular RNAs so that they can be distinguished from foreign RNAs, reducing innate immune responses to endogenous RNA. In humans, mutations giving reduced levels of one base modification, adenosine-to-inosine deamination, cause a viral infection mimic syndrome, a congenital encephalitis with aberrant interferon induction. These Aicardi-Goutieres syndrome 6 mutations affect adenosine deaminase acting on RNA 1 (ADAR1), which generates inosines in endogenous double-stranded (ds)RNA. The inosine base alters dsRNA structure to prevent aberrant activation of antiviral cytosolic helicase RIG-I-like receptors. We review how effects of inosines, ADARs, and other modi-fied bases have been shown to be important in innate immunity and cancer.

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