Viral miRNAs and immune evasion

Viral miRNAs, ~ 22nt RNA molecules which post-transcriptionally regulate gene expression, are emerging as important tools in immune evasion. Viral infection is a complex process that requires immune evasion in order to establish persistent life-long infection of the host. During this process viruses...

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Veröffentlicht in:Biochimica et biophysica acta 2011-11, Vol.1809 (11), p.708-714
Hauptverfasser: Boss, Isaac W., Renne, Rolf
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Renne, Rolf
description Viral miRNAs, ~ 22nt RNA molecules which post-transcriptionally regulate gene expression, are emerging as important tools in immune evasion. Viral infection is a complex process that requires immune evasion in order to establish persistent life-long infection of the host. During this process viruses express both protein-coding and non-coding genes, which help to modulate the cellular environment making it more favorable for infection. In the last decade, it was uncovered that DNA viruses express a diverse and abundant pool of small non-coding RNA molecules, called microRNAs (miRNAs). These virally encoded miRNAs are non-immunogenic and therefore are important tools used to evade both innate and adaptive immune responses. This review aims to summarize our current knowledge of herpesvirus- and polyomavirus-encoded miRNAs, and how they contribute to immune evasion by targeting viral and/or host cellular genes. This article is part of a Special Issue entitled: MicroRNAs in viral gene regulation. ► We review currently known viral miRNA targets. ► We examine viral miRNA function in regulating immune evasion. ► The future of viral miRNA research is described.
doi_str_mv 10.1016/j.bbagrm.2011.06.012
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subjects Animals
Herpesviridae - genetics
Herpesviridae - metabolism
Humans
Immune evasion
Immune Evasion - genetics
MicroRNAs - metabolism
MiRNAs
Models, Biological
Polyomavirus - genetics
Polyomavirus - metabolism
RNA, Viral - metabolism
Viral miRNA targets
Virus Diseases - genetics
Virus Diseases - immunology
Viruses
title Viral miRNAs and immune evasion
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