Abstract
Steatosis is an established risk factor for disease progression in cases of chronic hepatitis C. Recently it was demonstrated that Hepatitis C virus (HCV) core and non-structural (NS) 2 proteins (NS2) induce lipid accumulation in hepatic cells. However, it has yet to be determined whether other HCV proteins are associated with lipid metabolism. The NS5A augmented the transcriptional activity and gene expression of PPARγ. Furthermore, NS5A increased the ability to recruit the transcriptional coactivator PGC-1s to the PPRE with PPARγ, as well as the interaction with PPARγ2 and PGC-1α. Our results indicate that NS5A may exploit multiple strategies that enhance PPARγ-induced lipid accumulation. Structured summaryMINT-7229685: PPAR gamma 2 (uniprotkb:P37231-2) physically interacts (MI:0914) with PGC1 alpha (uniprotkb:Q9UBK2) by pull down (MI:0096)MINT-7229712: PPAR gamma 2 (uniprotkb:P37231-2) physically interacts (MI:0914) with NS5A (uniprotkb:P26662) by pull down (MI:0096)MINT-7229698: PPAR gamma 2 (uniprotkb:P37231-2) physically interacts (MI:0914) with PGC1 alpha (uniprotkb:Q9UBK2) by anti tag coimmunoprecipitation (MI:0007)MINT-7229731: PPAR gamma 2 (uniprotkb:P37231-2) physically interacts (MI:0914) with NS5A (uniprotkb:P26662) by anti tag coimmunoprecipitation (MI:0007)
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