國家衛生研究院 NHRI:Item 3990099045/3608

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Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/3608

Title:	Novel antiviral agent DTriP-22 targets RNA-dependent RNA polymerase of enterovirus 71
Authors:	Chen, TC;Chang, HY;Lin, PF;Chern, JH;Hsu, JT;Chang, CY;Shih, SR
Contributors:	Division of Biotechnology and Pharmaceutical Research
Abstract:	Enterovirus 71 (EV71) has emerged as an important virulent neurotropic enterovirus in young children. DTriP-22 (4{4-[(2-bromo-phenyl)-(3-methyl- thiophen-2-yl)-methyl]-piperazin-1-yl}-1-pheny-1H-pyrazolo[3,4-d]pyrimidine) was found to be a novel and potent inhibitor of EV71. The molecular target of this compound was identified by analyzing DTriP-22-resistant viruses. A substitution of lysine for Arg163 in EV71 3D polymerase rendered the virus drug resistant. DTriP-22 exhibited the ability to inhibit viral replication by reducing viral RNA accumulation. The compound suppressed the accumulated levels of both positive- and negative-stranded viral RNA during virus infection. An in vitro polymerase assay indicated that DTriP-22 inhibited the poly(U) elongation activity, but not the VPg uridylylation activity, of EV71 polymerase. These findings demonstrate that the nonnucleoside analogue DTriP-22 acts as a novel inhibitor of EV71 polymerase. DTriP-22 also exhibited a broad spectrum of antiviral activity against other picornaviruses, which highlights its potential in the development of antiviral agents.
Date:	2009-07
Relation:	Antimicrobial Agents and Chemotherapy. 2009 Jul;53(7):2740-2747.
Link to:	http://dx.doi.org/10.1128/AAC.00101-09
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0066-4804&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000267354000006
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=67649997343
Appears in Collections:	[John Tsu-An Hsu] Periodical Articles [Jyh-Haur Chern] Periodical Articles

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