| Autor: |
Kang SM; Department of Biotechnology, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, South Korea., Kim SJ, Kim JH, Lee W, Kim GW, Lee KH, Choi KY, Oh JW |
| Jazyk: |
angličtina |
| Zdroj: |
Cancer letters [Cancer Lett] 2009 Jul 08; Vol. 279 (2), pp. 230-7. Date of Electronic Publication: 2009 Mar 04. |
| DOI: |
10.1016/j.canlet.2009.02.003 |
| Abstrakt: |
The hepatitis C virus (HCV) core protein is the primary protein component of the nucleocapsid that encapsidates the viral RNA genome. Besides its role as a viral structural protein, the core protein is implicated in HCV chronic infection-associated liver diseases by induction of reactive oxygen species (ROS) production and modulation of apoptosis. Here, we show that interaction of the core protein, through its N-terminal domain (amino acids 1-75), with heat shock protein (Hsp60) is critical for the induction of ROS production, leading to sensitization of core protein-expressing cells to apoptosis induced by tumor necrosis factor-alpha (TNF-alpha). Moreover, overexpression of Hsp60 rescued the core protein-expressing cells from cell death by reducing ROS production. Collectively, our results suggest that impairment of Hsp60 function through binding of HCV core protein contributes to HCV viral pathogenesis by ROS generation and amplification of the apoptotic effect of TNF-alpha. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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