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MicroRNAs derived from the insect virus HzNV-1 promote lytic infection by suppressing histone methylation
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SYSNO ASEP 0497307 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title MicroRNAs derived from the insect virus HzNV-1 promote lytic infection by suppressing histone methylation Author(s) Wu, P.-C. (TW)
Lin, Yu-Hsien (BC-A) ORCID
Wu, T.-C. (TW)
Lee, S.-T. (TW)
Wu, C.-P. (TW)
Chang, Y. (TW)
Wu, Y.-L. (TW)Number of authors 7 Article number 17817 Source Title Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 8, DEC 13 (2018)Number of pages 12 s. Language eng - English Country GB - United Kingdom Keywords MicroRNAs ; HzNV-1 ; Heliothis Subject RIV EB - Genetics ; Molecular Biology OECD category Biochemistry and molecular biology Institutional support BC-A - RVO:60077344 UT WOS 000453221700006 EID SCOPUS 85058605560 DOI 10.1038/s41598-018-35782-w Annotation Heliothis zea nudivirus-1 (HzNV-1) is an insect virus that can induce both lytic and latent infections in various insect cell lines. During latent infection, several microRNAs (miRNAs) are produced from persistency-associated gene 1 (pag1) as the only detectable HzNV-1 transcript. Previous studies have shown that the pag1 gene suppresses the immediate-early gene hhi1 and promotes host switching into a latent infection via miRNAs derived from pag1. Although other functions of the miRNAs derived from pag1 have not yet been elucidated, several studies have suggested that miRNAs encoded from latency-associated genes can regulate histone-associated enzymes. Because pag1 is a noncoding transcript, it potentially regulates host chromatin structure through miRNAs upon infection. Nevertheless, the exact mechanism by which pag1 alters viral infections remains unknown. In this study, we found that the pag1-encoded miRNA miR-420 suppresses expression of the histone modification-associated enzyme su(var) 3-9. Therefore, this miRNA causes histone modification to promote HzNV-1 infection. These results suggest that HzNV-1 may directly influence epigenetic regulation in host cells through interactions with pag1 miRNAs to promote lytic infection. This study provides us with a better understanding of both the HzNV-1 infection pathway and the relationship between viral miRNAs and epigenetic regulation. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2019
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