Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.antiviral.2016.08.009
Title: Inhibition of enterovirus VP4 myristoylation is a potential antiviral strategy for hand, foot and mouth disease
Authors: Tan, Yong Wah
Hong, Wan Jin 
Chu, Justin Jang Hann 
Keywords: Human enterovirus
EV71
Myristoylation
HFMD
Antiviral
Issue Date: Sep-2016
Publisher: Elsevier BV
Citation: Tan, Yong Wah, Hong, Wan Jin, Chu, Justin Jang Hann (2016-09). Inhibition of enterovirus VP4 myristoylation is a potential antiviral strategy for hand, foot and mouth disease. ANTIVIRAL RESEARCH 133 : 191-195. ScholarBank@NUS Repository. https://doi.org/10.1016/j.antiviral.2016.08.009
Abstract: © 2016 Elsevier B.V. The Hand, Foot and Mouth Disease (HFMD) can result from infections by a plethora of human enteroviruses of the species Enterovirus A and B. These infections are highly contagious, resulting in regular outbreaks especially in the Asia-Pacific Region in the recent decade. Although this disease is generally a childhood affliction which manifests as a mild, febrile illness accompanied by the vesicles on the hands, feet and mouth, permanent morbidity or even fatality can result from severe forms of the disease in a subset of the infected patients. The N-terminal myristoylation signal (MGXXXS) of viral capsid protein VP4, one of the four viral structural proteins, is an extremely well conserved feature of enteroviruses, a potential antiviral target that may yield broad-spectrum inhibitors of HFMD. In this study, we have confirmed through the use of small interfering RNAs, human N-myristoyltransferase 1 plays an integral role in human Enterovirus 71 replication. Subsequent studies by inhibition of myristoylation using different myristic acid analogues elicited differential effects on the virus replication in human rhabdomyosarcoma cells. In particular, 2-hydroxymyristic acid specifically inhibited the cleavage between VP4 and VP2, part of the virion maturation process required to ensure infectivity of progeny virions while 4-oxatetradecanoic acid reduced the synthesis of viral RNA. These findings suggest that the requirement of a myristate moiety in viral structural protein precursor cleavage can serve as a viable antiviral target for further research.
Source Title: ANTIVIRAL RESEARCH
URI: https://scholarbank.nus.edu.sg/handle/10635/173264
ISSN: 01663542
18729096
DOI: 10.1016/j.antiviral.2016.08.009
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