Hepatitis C virus core protein enhances HIV-1 replication in human macrophages through TLR2, JNK, and MEK1/2-dependent upregulation of TNF-α and IL-6.

Abstract:

:Despite their differential cell tropisms, HIV-1 and HCV dramatically influence disease progression in coinfected patients. Macrophages are important target cells of HIV-1. We hypothesized that secreted HCV core protein might modulate HIV-1 replication. We demonstrate that HCV core significantly enhances HIV-1 replication in human macrophages by upregulating TNF-α and IL-6 via TLR2-, JNK-, and MEK1/2-dependent pathways. Furthermore, we show that TNF-α and IL-6 secreted from HCV core-treated macrophages reactivates monocytic U1 cells latently infected with HIV-1. Our studies reveal a previously unrecognized role of HCV core by enhancing HIV-1 infection in macrophages.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Swaminathan G,Pascual D,Rival G,Perales-Linares R,Martin-Garcia J,Navas-Martin S

doi

10.1016/j.febslet.2014.08.009

subject

Has Abstract

pub_date

2014-09-17 00:00:00

pages

3501-10

issue

18

eissn

0014-5793

issn

1873-3468

pii

S0014-5793(14)00610-3

journal_volume

588

pub_type

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