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Role of HCMV miR-UL70-3p and miR-UL148D in overcoming the cellular apoptosis

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Abstract

The studies into the pathophysiology of viral miRNAs are still in infancy; the interspecies regulation at the miRNA level fuels the spark of the investigation into the repertoire of virus–host interactions. Reports pertaining to the viral miRNAs role in modulating/evading the host immune response are surging up; we initiated this in silico study to speculate the role of human cytomegalovirus (HCMV)-encoded miRNAs on human antiviral mechanisms such as apoptosis and autophagy. The results indicate that both the above mechanisms were targeted by the HCMV miRNAs, located in the unique long region of the HCMV genome. The proapoptotic genes MOAP1, PHAP, and ERN1 are identified to be the potential targets for the miR-UL70-3p and UL148D, respectively. The ERN1 gene plays a role in the initiation of Endoplasmic reticulum stress-induced apoptosis as well as autophagosome formation. This study shows that HCMV employs its miRNA repertoire for countering the cellular apoptosis and autophagy, particularly the mitochondrial-dependent intrinsic pathway of apoptosis. In addition, the homology studies reveal no HCMV miRNA bears sequence homology with human miRNAs.

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Acknowledgments

The authors are thankful to the Babasaheb Bhimrao Ambedkar University, Lucknow, India for providing the necessary infrastructural facilities.

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Authors and Affiliations

  1. Department of Biotechnology, Babasaheb Bhimrao Ambedkar University, Lucknow, 226 025, India

    Sunil G. Babu, Abhishek Pandeya, Neelam Verma, Nikita Shukla & Sangeeta Saxena

  2. Department of Applied Animal Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, 226 025, India

    R. Venkatesh Kumar

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  1. Sunil G. Babu
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  2. Abhishek Pandeya
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Correspondence to Sunil G. Babu.

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Babu, S.G., Pandeya, A., Verma, N. et al. Role of HCMV miR-UL70-3p and miR-UL148D in overcoming the cellular apoptosis. Mol Cell Biochem 393, 89–98 (2014). https://doi.org/10.1007/s11010-014-2049-8

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  • DOI: https://doi.org/10.1007/s11010-014-2049-8

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