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A functional MicroRNA-155 ortholog encoded by the oncogenic Marek's disease virus.


ABSTRACT: Kaposi's sarcoma-associated herpesvirus-encoded microRNA (miRNA) MiR-K12-11 was recently shown to be a functional ortholog of miR-155, a miRNA that plays a major role in lymphoid malignancies and the modulation of immune responses. Here we show that miR-M4, encoded by the highly oncogenic Marek's disease virus of chickens, shares common targets with miR-155 and thus is also a functional ortholog of miR-155, the first one identified in an alphaherpesvirus. The observation that two distinct oncogenic herpesviruses associated with distinct types of lymphomas in different species encode functional miR-155 orthologs suggested the importance of this miRNA in regulatory pathways and the biology of lymphomagenesis.

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC2612317 | biostudies-literature | 2009 Jan

REPOSITORIES: biostudies-literature

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A functional MicroRNA-155 ortholog encoded by the oncogenic Marek's disease virus.

Zhao Yuguang Y   Yao Yongxiu Y   Xu Hongtao H   Lambeth Luke L   Smith Lorraine P LP   Kgosana Lydia L   Wang Xiaowei X   Nair Venugopal V  

Journal of virology 20081022 1


Kaposi's sarcoma-associated herpesvirus-encoded microRNA (miRNA) MiR-K12-11 was recently shown to be a functional ortholog of miR-155, a miRNA that plays a major role in lymphoid malignancies and the modulation of immune responses. Here we show that miR-M4, encoded by the highly oncogenic Marek's disease virus of chickens, shares common targets with miR-155 and thus is also a functional ortholog of miR-155, the first one identified in an alphaherpesvirus. The observation that two distinct oncoge  ...[more]

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