Marek’s disease virus microRNA designated Mdv1-pre-miR-M4 targets both cellular and viral genes

Marek’s disease virus microRNA designated Mdv1-pre-miR-M4 targets both cellular and viral genes Mdv1-miR-M4 is one of 25 microRNAs (miRNAs) expressed by Marek’s disease virus (MDV-1), an oncogenic alphaherpesvirus that induces fatal T-cell lymphoma in chickens. Mdv1-miR-M4 was shown to be the second functional viral ortholog of miR-155, a cellular miRNA that plays a crucial role in several physiological and pathological processes in lymphocyte biology. In this study, we investigated a panel of putative mdv1-miR-M4 targets involved in gene networks affecting both cellular and viral life cycles. Using luciferase reporter assays, we showed that mdv1-miR-M4-5P and miR-155 efficiently targeted a common set of 3′ untranslated regions (3′UTR) of six cellular genes (GPM6B, RREB1, c-Myb, MAP3K7IP2, PU.1 and C/EBP). In addition, we also investigated the interactions between mdv1-miR-M4-5P and mdv1-miR-M43P and viral mRNAs encoding UL28 and UL32 in both reporter and western blot assays. Mdv1-miR-M4 specifically inhibited the translation of these two viral proteins, which are involved in the cleavage/packaging of herpesvirus DNA. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Marek’s disease virus microRNA designated Mdv1-pre-miR-M4 targets both cellular and viral genes

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Publisher
Springer Journals
Copyright
Copyright © 2010 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology ; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-010-0777-y
Publisher site
See Article on Publisher Site

Abstract

Mdv1-miR-M4 is one of 25 microRNAs (miRNAs) expressed by Marek’s disease virus (MDV-1), an oncogenic alphaherpesvirus that induces fatal T-cell lymphoma in chickens. Mdv1-miR-M4 was shown to be the second functional viral ortholog of miR-155, a cellular miRNA that plays a crucial role in several physiological and pathological processes in lymphocyte biology. In this study, we investigated a panel of putative mdv1-miR-M4 targets involved in gene networks affecting both cellular and viral life cycles. Using luciferase reporter assays, we showed that mdv1-miR-M4-5P and miR-155 efficiently targeted a common set of 3′ untranslated regions (3′UTR) of six cellular genes (GPM6B, RREB1, c-Myb, MAP3K7IP2, PU.1 and C/EBP). In addition, we also investigated the interactions between mdv1-miR-M4-5P and mdv1-miR-M43P and viral mRNAs encoding UL28 and UL32 in both reporter and western blot assays. Mdv1-miR-M4 specifically inhibited the translation of these two viral proteins, which are involved in the cleavage/packaging of herpesvirus DNA.

Journal

Archives of VirologySpringer Journals

Published: Nov 1, 2010

References

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