RT Journal Article SR Electronic T1 Chloroquine inhibits Zika Virus infection in different cellular models JF bioRxiv FD Cold Spring Harbor Laboratory SP 051268 DO 10.1101/051268 A1 Rodrigo Delvecchio A1 Luiza M Higa A1 Paula Pezzuto A1 Ana Luiza Valadão A1 Patrícia P Garcez A1 Fábio L Monteiro A1 Erick C. Loiola A1 Stevens Rehen A1 Loraine Campanati A1 Renato Santana de Aguiar A1 Amilcar Tanuri YR 2016 UL http://biorxiv.org/content/early/2016/05/02/051268.abstract AB Zika virus (ZIKV) infection in utero might lead to microcephaly and other congenital defects. In adults, cases of Guillain-Barré syndrome and meningoencephalitis associated with ZIKV infection have been reported, and no specific therapy is available so far. There is urgency for the discovery of antiviral agents capable of inhibiting viral replication and its deleterious effects. Chloroquine is widely administered as an antimalarial drug, anti-inflammatory agent, and it also shows antiviral activity against several viruses. Here we show that chloroquine exhibits antiviral activity against ZIKV in VERO, human brain microvascular endothelial, and neural stem cells. We demonstrated in vitro that chloroquine reduces the number of ZIKV-infected cells, virus production and cell death promoted by ZIKV infection without cytotoxic effects. Our results suggest that chloroquine is a promising candidate for ZIKV clinical trials, since it is already approved for clinical use and can be safely administered to pregnant woman.