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Small molecule inhibitors of ER α-glucosidases are active against multiple hemorrhagic fever viruses
Journal article   Open access   Peer reviewed

Small molecule inhibitors of ER α-glucosidases are active against multiple hemorrhagic fever viruses

Jinhong Chang, Travis K Warren, Xuesen Zhao, Tina Gill, Fang Guo, Lijuan Wang, Mary Ann Comunale, Yanming Du, Dominic S Alonzi, Wenquan Yu, …
Antiviral research, v 98(3), pp 432-440
Jun 2013
PMID: 23578725
url
https://doi.org/10.1016/j.antiviral.2013.03.023View
Published, Version of Record (VoR) Open

Abstract

Ebola virus Hemorrhagic fever virus ER α-glucosidase Marburg virus Imino sugar
•Three imino sugars (IHVR11029, 17028 and 19029), were identified through SAR study of 120 derivatives.•These three imino sugars demonstrated broad antiviral activities against HFVs in vitro, and in vivo.•All three compounds inhibited ER α-glucosidases in vitro and in vivo. Host cellular endoplasmic reticulum α-glucosidases I and II are essential for the maturation of viral glycosylated envelope proteins that use the calnexin mediated folding pathway. Inhibition of these glycan processing enzymes leads to the misfolding and degradation of these viral glycoproteins and subsequent reduction in virion secretion. We previously reported that, CM-10-18, an imino sugar α-glucosidase inhibitor, efficiently protected the lethality of dengue virus infection of mice. In the current study, through an extensive structure–activity relationship study, we have identified three CM-10-18 derivatives that demonstrated superior in vitro antiviral activity against representative viruses from four viral families causing hemorrhagic fever. Moreover, the three novel imino sugars significantly reduced the mortality of two of the most pathogenic hemorrhagic fever viruses, Marburg virus and Ebola virus, in mice. Our study thus proves the concept that imino sugars are promising drug candidates for the management of viral hemorrhagic fever caused by variety of viruses.

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Web of Science research areas
Pharmacology & Pharmacy
Virology
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