Characterization of reemerging chikungunya virus.

Abstract:

:An unprecedented epidemic of chikungunya virus (CHIKV) infection recently started in countries of the Indian Ocean area, causing an acute and painful syndrome with strong fever, asthenia, skin rash, polyarthritis, and lethal cases of encephalitis. The basis for chikungunya disease and the tropism of CHIKV remain unknown. Here, we describe the replication characteristics of recent clinical CHIKV strains. Human epithelial and endothelial cells, primary fibroblasts and, to a lesser extent, monocyte-derived macrophages, were susceptible to infection and allowed viral production. In contrast, CHIKV did not replicate in lymphoid and monocytoid cell lines, primary lymphocytes and monocytes, or monocyte-derived dendritic cells. CHIKV replication was cytopathic and associated with an induction of apoptosis in infected cells. Chloroquine, bafilomycin-A1, and short hairpin RNAs against dynamin-2 inhibited viral production, indicating that viral entry occurs through pH-dependent endocytosis. CHIKV was highly sensitive to the antiviral activity of type I and II interferons. These results provide a general insight into the interaction between CHIKV and its mammalian host.

journal_name

PLoS Pathog

journal_title

PLoS pathogens

authors

Sourisseau M,Schilte C,Casartelli N,Trouillet C,Guivel-Benhassine F,Rudnicka D,Sol-Foulon N,Le Roux K,Prevost MC,Fsihi H,Frenkiel MP,Blanchet F,Afonso PV,Ceccaldi PE,Ozden S,Gessain A,Schuffenecker I,Verhasselt B,Zamb

doi

10.1371/journal.ppat.0030089

subject

Has Abstract

pub_date

2007-06-01 00:00:00

pages

e89

issue

6

eissn

1553-7366

issn

1553-7374

pii

07-PLPA-RA-0086

journal_volume

3

pub_type

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