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HIV-1 infection up-regulating expression of interferon-stimulated gene 15 in cell lines / 病毒学报
Chinese Journal of Virology ; (6): 480-487, 2013.
Article in Chinese | WPRIM | ID: wpr-356678
ABSTRACT
To investigate whether HIV-1 infection affects expression of interferon-stimulated gene 15 (ISG15) and determine the antiviral effect of ISG15 in vitro, ISG15 expression at transcription and protein level and supernatant p24 of HIV-1 was detected in various HIV-1 infected or transfected cell lines, respec tively. HIV-1 molecular clone pNL4-3 was used to transfect 293T, TZM-bl and HeLa cells while HIV-1 pseudo-typed virus was used to infect Jurkat, MT-1 and THP-1 cells. After twenty-four hours post infection or transfection, cells were harvested for extraction of total RNAs and subsequently used in real time PCR for quantification of ISG15 transcriptional expression. After forty-eight hours post infection or transfection, cells were harvested for extraction of total proteins to detect ISG15 protein expression. A significant up-regulation of ISG15 at transcription level was observed in HIV-1 infected or transfected cell lines, particulaly in THP-1 and TZM-bl cells. Up-regulation of ISG15 protein was observed only in TZM-bl cell. Cotransfection of ISG15 and HIV-1 indicated that ISG15 inhibited production of HIV-1 progeny virus in a dose and time depend manner in 293T cell but not TZM-bl cell. These results revealed upregulating ISG15 expression in transcriptional level and potential antagonistic mechanism against ISG15 by HIV-1 infection, simultanelusly.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Physiology / Virology / Molecular Sequence Data / Base Sequence / Ubiquitins / HIV Infections / Up-Regulation / Cell Line / Cytokines / HIV-1 Limits: Humans Language: Chinese Journal: Chinese Journal of Virology Year: 2013 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Physiology / Virology / Molecular Sequence Data / Base Sequence / Ubiquitins / HIV Infections / Up-Regulation / Cell Line / Cytokines / HIV-1 Limits: Humans Language: Chinese Journal: Chinese Journal of Virology Year: 2013 Type: Article