Hepatitis C virus p7 induces mitochondrial depolarization of isolated liver mitochondria.

Abstract:

:Hepatitis C virus (HCV)‑encoded protein p7 is a viroporin that acts as an ion channel and is indispensable for HCV particle production. Although the main target of HCV p7 is the endoplasmic reticulum, it also targets mitochondria. HCV‑infected cells show mitochondrial depolarization and ATP depletion; however, the function of HCV p7 in mitochondria is not fully understood. The present study demonstrated that treatment of isolated mouse liver mitochondria with the synthesized HCV p7 protein induced mitochondrial dysfunction. It also demonstrated that HCV p7 targeted isolated mouse liver mitochondria and induced mitochondrial depolarization. In addition, HCV p7 triggered matrix acidification and, ultimately, a decrease in ATP synthesis in isolated mitochondria. These findings indicate that targeting of mitochondria by HCV p7 in infected cells causes mitochondrial dysfunction to support HCV particle production. The present study provided evidence for the role of HCV p7 in mitochondria, and may lead to the development of novel strategies for HCV therapy.

journal_name

Mol Med Rep

authors

You DG,Lee HR,Kim WK,Kim HJ,Lee GY,Yoo YD

doi

10.3892/mmr.2017.7809

subject

Has Abstract

pub_date

2017-12-01 00:00:00

pages

9533-9538

issue

6

eissn

1791-2997

issn

1791-3004

journal_volume

16

pub_type

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