國家衛生研究院 NHRI:Item 3990099045/16166

NHRI > National Institute of Infectious Diseases and Vaccinology > Chia-Chyi Liu > Periodical Articles > Item 3990099045/16166

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/16166

Title:	Enhanced production of recombinant coxsackievirus A16 using a serum-free HEK293A suspension culture system for bivalent enterovirus vaccine development
Authors:	Chen, YA;Shen, YS;Fang, CY;Chan, TT;Wu, SR;Wang, JR;Wu, SC;Liu, CC
Contributors:	National Institute of Infectious Diseases and Vaccinology
Abstract:	Coxsackievirus A16 (CVA16) is one of the primary pathogens that causes hand, foot, and mouth disease (HFMD) in young children. In previous studies, CVA16 vaccine development has encountered several challenges, such as inefficient replication of the CVA16 virus in present culture systems, the induction of only mild neutralizing antibody titers, and neutralizing antibodies induced by certain vaccine candidates that are unable to protect against CVA16 viral challenge. In this study, we constructed a DNA-launched CVA16 infectious clone (CVA16ic) based on the genomic sequence of the CVA16 N5079 strain to minimize interference from viral quasispecies. The biochemical properties of this CVA16ic strain were similar to those of its parental strain. Serum-free HEK293A suspension cells, which produced higher virus titers than Vero cells, were demonstrated to improve CVA16 production yields. In addition, our study showed that inactivated EV-A71 antigens could enhance the immunogenicity of inactivated CVA16 mature/full particles (F-particles), suggesting that a bivalent CVA16 and EV-A71 vaccine may be an effective strategy for CVA16 vaccine development. These findings are expected to provide novel strategies and accelerate the development of bivalent HFMD vaccines.
Date:	2024-10
Relation:	Vaccine: X. 2024 Oct;20:Article number 100559.
Link to:	http://dx.doi.org/10.1016/j.jvacx.2024.100559
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2590-1362&DestApp=IC2JCR
Cited Times(Scopus):	https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85204420873
Appears in Collections:	[Chia-Chyi Liu] Periodical Articles

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