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A human genome-wide loss-of-function screen identifies effective chikungunya antiviral drugs.

Abstract：

:Chikungunya virus (CHIKV) is a globally spreading alphavirus against which there is no commercially available vaccine or therapy. Here we use a genome-wide siRNA screen to identify 156 proviral and 41 antiviral host factors affecting CHIKV replication. We analyse the cellular pathways in which human proviral genes are involved and identify druggable targets. Twenty-one small-molecule inhibitors, some of which are FDA approved, targeting six proviral factors or pathways, have high antiviral activity in vitro, with low toxicity. Three identified inhibitors have prophylactic antiviral effects in mouse models of chikungunya infection. Two of them, the calmodulin inhibitor pimozide and the fatty acid synthesis inhibitor TOFA, have a therapeutic effect in vivo when combined. These results demonstrate the value of loss-of-function screening and pathway analysis for the rational identification of small molecules with therapeutic potential and pave the way for the development of new, host-directed, antiviral agents.

journal_name

Nat Commun

journal_title

Nature communications

authors

Karlas A,Berre S,Couderc T,Varjak M,Braun P,Meyer M,Gangneux N,Karo-Astover L,Weege F,Raftery M,Schönrich G,Klemm U,Wurzlbauer A,Bracher F,Merits A,Meyer TF,Lecuit M

doi

10.1038/ncomms11320

subject

Has Abstract

pub_date

2016-05-12 00:00:00

pages

11320

issn

2041-1723

pii

ncomms11320

journal_volume

7

pub_type

杂志文章

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