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Identification of Small-Molecule Inhibitors of Zika Virus Infection and Induced Neural Cell Death via a Drug Repurposing Screen

Identification of Small-Molecule Inhibitors of Zika Virus Infection and Induced Neural Cell Death via a Drug Repurposing Screen

Miao Xu, Emily M Lee, Zhexing Wen, Yichen Cheng, Wei-Kai Huang, Xuyu Qian, Julia Tcw, Jennifer Kouznetsova, Sarah C Ogden, Christy Hammack, Fadi Jacob, Ha Nam Nguyen, Misha Itkin, Catherine Hanna, Paul Shinn, etc.

Nat Med. 2016 Oct;22(10):1101-1107.

PMID: 27571349

Abstract:

In response to the current global health emergency posed by the Zika virus (ZIKV) outbreak and its link to microcephaly and other neurological conditions, we performed a drug repurposing screen of ∼6,000 compounds that included approved drugs, clinical trial drug candidates and pharmacologically active compounds; we identified compounds that either inhibit ZIKV infection or suppress infection-induced caspase-3 activity in different neural cells. A pan-caspase inhibitor, emricasan, inhibited ZIKV-induced increases in caspase-3 activity and protected human cortical neural progenitors in both monolayer and three-dimensional organoid cultures. Ten structurally unrelated inhibitors of cyclin-dependent kinases inhibited ZIKV replication. Niclosamide, a category B anthelmintic drug approved by the US Food and Drug Administration, also inhibited ZIKV replication. Finally, combination treatments using one compound from each category (neuroprotective and antiviral) further increased protection of human neural progenitors and astrocytes from ZIKV-induced cell death. Our results demonstrate the efficacy of this screening strategy and identify lead compounds for anti-ZIKV drug development.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP254750022	Emricasan		254750-02-2	Price

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