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Volume 34 Issue 3
June 2019
    Citation: Yang Zhao, Jingjing Yang, Yan Liu, Jianyong Fan, Huilan Yang. HSV-2-encoded miRNA-H4 Regulates Cell Cycle Progression and Act-Dinduced Apoptosis in HeLa Cells by Targeting CDKL2 and CDKN2A .VIROLOGICA SINICA, 2019, 34(3) : 278-286.  http://dx.doi.org/10.1007/s12250-019-00101-8
    shu

    HSV-2-encoded miRNA-H4 Regulates Cell Cycle Progression and Act-Dinduced Apoptosis in HeLa Cells by Targeting CDKL2 and CDKN2A

    cstr: 32224.14.s12250-019-00101-8
    • 1.

      Guangzhou School of Clinical Medicine, Southern Medical University, Guangzhou 510010, China

    • 2.

      Department of Dermatology, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China

    • Corresponding author: Huilan Yang, huilany@hotmail.com, ORCID: 0000-0002-2153-9959
    • Received Date: 15 August 2018
      Accepted Date: 25 January 2019
      Published Date: 05 April 2019
      Available online: 01 June 2019
    • MicroRNAs (miRNAs) encoded by latency-associated transcript are associated with both latent and acute stages of herpes simplex virus 2 (HSV-2) infection. In this study, miRNA-H4-5p and miRNA-H4-3p were ectopically expressed in HeLa cells to explore potential cellular targets of viral miRNAs and demonstrate their potential biological functions. The results showed that miRNA-H4-5p could reverse apoptosis induced by actinomycin D (Act-D) and promote cell cycle progression, but miRNA-H4-3p had no such obvious functions. Bioinformatics analysis, luciferase report assay, quantitative reverse transcription polymerase chain reaction (qRT-PCR), and Western blotting demonstrated that miRNA-H4-5p could bind to the 3'-untranslated region (UTR) of cyclin-dependent kinase inhibitor 2A (CDKN2A) and cyclin-dependent kinase-like 2 (CDKL2) to negatively regulate their expression. We verified that these two targeted genes were associated with cell apoptosis and cell cycle. Furthermore, in HeLa cells infected with HSV-2, we detected significantly reduced expression of CDKN2A and CDKL2 and demonstrated the negative regulation effect of miRNA-H4-5p on these two target genes. Our findings show that viral miRNAs play a vital role in regulating the expression of the host's cellular genes that participate in cell apoptosis and progression to reshape the cellular environment in response to HSV-2 infection, providing further information on the roles of encoded herpesvirus miRNAs in pathogen–host interaction.
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      HSV-2-encoded miRNA-H4 Regulates Cell Cycle Progression and Act-Dinduced Apoptosis in HeLa Cells by Targeting CDKL2 and CDKN2A

        Corresponding author: Huilan Yang, huilany@hotmail.com
      • 1. Guangzhou School of Clinical Medicine, Southern Medical University, Guangzhou 510010, China
      • 2. Department of Dermatology, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China
      • Received Date: 15 August 2018
      • Accepted Date: 25 January 2019
      • Published Date: 05 April 2019

      Abstract: MicroRNAs (miRNAs) encoded by latency-associated transcript are associated with both latent and acute stages of herpes simplex virus 2 (HSV-2) infection. In this study, miRNA-H4-5p and miRNA-H4-3p were ectopically expressed in HeLa cells to explore potential cellular targets of viral miRNAs and demonstrate their potential biological functions. The results showed that miRNA-H4-5p could reverse apoptosis induced by actinomycin D (Act-D) and promote cell cycle progression, but miRNA-H4-3p had no such obvious functions. Bioinformatics analysis, luciferase report assay, quantitative reverse transcription polymerase chain reaction (qRT-PCR), and Western blotting demonstrated that miRNA-H4-5p could bind to the 3'-untranslated region (UTR) of cyclin-dependent kinase inhibitor 2A (CDKN2A) and cyclin-dependent kinase-like 2 (CDKL2) to negatively regulate their expression. We verified that these two targeted genes were associated with cell apoptosis and cell cycle. Furthermore, in HeLa cells infected with HSV-2, we detected significantly reduced expression of CDKN2A and CDKL2 and demonstrated the negative regulation effect of miRNA-H4-5p on these two target genes. Our findings show that viral miRNAs play a vital role in regulating the expression of the host's cellular genes that participate in cell apoptosis and progression to reshape the cellular environment in response to HSV-2 infection, providing further information on the roles of encoded herpesvirus miRNAs in pathogen–host interaction.

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