Circular RNAs and RNase L in PKR activation and virus infection

Abstract Circular RNAs (circRNAs) from back-splicing have been found in every cell and tissue. By binding to miRNAs and proteins or even by encoding small proteins, circRNAs are now emerging as important regulators in modulating transcription, RNA splicing and interference. The highlighted discovery...

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Main Author: Zhi-Ming Zheng
Format: Article
Language:English
Published: BMC 2019-05-01
Series:Cell & Bioscience
Subjects:
PKR
Online Access:http://link.springer.com/article/10.1186/s13578-019-0307-x
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spelling doaj-03c92dcd799a4079b3c0908de34b2b252020-11-25T03:08:26ZengBMCCell & Bioscience2045-37012019-05-01911310.1186/s13578-019-0307-xCircular RNAs and RNase L in PKR activation and virus infectionZhi-Ming Zheng0Tumor Virus RNA Biology Section, RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute, NIHAbstract Circular RNAs (circRNAs) from back-splicing have been found in every cell and tissue. By binding to miRNAs and proteins or even by encoding small proteins, circRNAs are now emerging as important regulators in modulating transcription, RNA splicing and interference. The highlighted discovery reports an important role of circRNAs in antiviral innate immunity by binding PKR as PKR inhibitors. Rapid degradation of circRNAs by activated RNase L from virus infection or poly I:C stimulation is required to free PKR for its activation. Systemic lupus erythematosus patients remark with circRNA reduction and aberrant PKR activation.http://link.springer.com/article/10.1186/s13578-019-0307-xCircular RNAPKRInnate immunityRNase LSystemic lupus erythematosus
collection DOAJ
language English
format Article
sources DOAJ
author Zhi-Ming Zheng
spellingShingle Zhi-Ming Zheng
Circular RNAs and RNase L in PKR activation and virus infection
Cell & Bioscience
Circular RNA
PKR
Innate immunity
RNase L
Systemic lupus erythematosus
author_facet Zhi-Ming Zheng
author_sort Zhi-Ming Zheng
title Circular RNAs and RNase L in PKR activation and virus infection
title_short Circular RNAs and RNase L in PKR activation and virus infection
title_full Circular RNAs and RNase L in PKR activation and virus infection
title_fullStr Circular RNAs and RNase L in PKR activation and virus infection
title_full_unstemmed Circular RNAs and RNase L in PKR activation and virus infection
title_sort circular rnas and rnase l in pkr activation and virus infection
publisher BMC
series Cell & Bioscience
issn 2045-3701
publishDate 2019-05-01
description Abstract Circular RNAs (circRNAs) from back-splicing have been found in every cell and tissue. By binding to miRNAs and proteins or even by encoding small proteins, circRNAs are now emerging as important regulators in modulating transcription, RNA splicing and interference. The highlighted discovery reports an important role of circRNAs in antiviral innate immunity by binding PKR as PKR inhibitors. Rapid degradation of circRNAs by activated RNase L from virus infection or poly I:C stimulation is required to free PKR for its activation. Systemic lupus erythematosus patients remark with circRNA reduction and aberrant PKR activation.
topic Circular RNA
PKR
Innate immunity
RNase L
Systemic lupus erythematosus
url http://link.springer.com/article/10.1186/s13578-019-0307-x
work_keys_str_mv AT zhimingzheng circularrnasandrnaselinpkractivationandvirusinfection
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