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 Pathogjournal_title
PLoS pathogensauthors
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,Zambdoi
10.1371/journal.ppat.0030089subject
Has Abstractpub_date
2007-06-01 00:00:00pages
e89issue
6eissn
1553-7366issn
1553-7374pii
07-PLPA-RA-0086journal_volume
3pub_type
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