國家衛生研究院 NHRI:Item 3990099045/14048

NHRI > National Mosquito-Borne Diseases Control Research Center > Sheng-Wen Huang > Periodical Articles > Item 3990099045/14048

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/14048

Title:	An auto-antibody identified from phenotypic directed screening platform shows host immunity against EV-A71 infection
Authors:	Cheng, YW;Chuang, YC;Huang, SW;Liu, CC;Wang, JR
Contributors:	National Mosquito-Borne Diseases Control Research Center;National Institute of Infectious Diseases and Vaccinology
Abstract:	Background Enterovirus A71 (EV-A71) is a neurotropic virus which may cause severe neural complications, especially in infants and children. The clinical manifestations include hand-foot-and-mouth disease, herpangina, brainstem encephalitis, pulmonary edema, and other severe neurological diseases. Although there are some vaccines approved, the post-marketing surveillance is still unavailable. In addition, there is no antiviral drugs against EV-A71 available. Methods In this study, we identified a novel antibody that could inhibit viral growth through a human single chain variable fragment (scFv) library expressed in mammalian cells and panned by infection with lethal dose of EV-A71. Results We identified that the host protein alpha-enolase (ENO1) is the target of this scFv, and anti-ENO1 antibody was found to be more in mild cases than severe EV-A71 cases. Furthermore, we examined the antiviral activity in a mouse model. We found that the treatment of the identified 07-human IgG(1) antibody increased the survival rate after virus challenge, and significantly decreased the viral RNA and the level of neural pathology in brain tissue. Conclusions Collectively, through a promising intracellular scFv library expression and screening system, we found a potential scFv/antibody which targets host protein ENO1 and can interfere with the infection of EV-A71. The results indicate that the usage and application of this antibody may offer a potential treatment against EV-A71 infection.
Date:	2022-02-08
Relation:	Journal of Biomedical Science. 2022 Feb 08;29:Article number 100117.
Link to:	http://dx.doi.org/10.1186/s12929-022-00794-2
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1021-7770&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000752353800001
Cited Times(Scopus):	https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85124444289
Appears in Collections:	[Sheng-Wen Huang] Periodical Articles

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