國家衛生研究院 NHRI:Item 3990099045/9878

NHRI > National Institute of Infectious Diseases and Vaccinology > Chia-Chyi Liu > Periodical Articles > Item 3990099045/9878

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/9878

Title:	Development of a full-length cDNA-derived enterovirus A71 vaccine candidate using reverse genetics technology
Authors:	Yang, YT;Chow, YH;Hsiao, KN;Hu, KC;Chiang, JR;Wu, SC;Chong, P;Liu, CC
Contributors:	Division of Vaccine Research and Development
Abstract:	Enterovirus A71 (EV-A71) is responsible for epidemics of hand, foot and mouth disease (HFMD) in young children. To circumvent difficulties in obtaining clinical enterovirus isolates that might be contaminated with other viruses, a platform technology was developed to quickly generate vaccine virus strains based on the published enterovirus genomic sequences. A recombinant plasmid containing the full-length infectious cDNA clone of EV-A71 vaccine strain E59 was directly generated after transfecting the recombinant plasmid into Vero, RD or HEK293A cells, and phenotypic characteristics similar to the parental strain were observed. The cDNA-derived infectious EV-A71 virus grown in Vero cells produced relatively stable virus titers in both T-flasks and microcarrier culture systems. To evaluate the genetic stability of the cDNA-derived EV-A71 viruses, the immunodominant structural proteins, VP1 and VP2, of the recombinant EV-A71 viruses were sequenced and analyzed. The cDNA-derived EV-A71 virus showed weak pathogenicity in a human SCARB2 mouse model. These results show the successful generation of a recombinant virus derived from a published viral genomic sequence that demonstrated good genetic stability and viral yields, which could represent an efficient and safe vaccine strain for cGMP-grade manufacturing.
Date:	2016-08
Relation:	Antiviral Research. 2016 Aug;132:225-232.
Link to:	http://dx.doi.org/10.1016/j.antiviral.2016.06.014
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0166-3542&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000382345100030
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84978140875
Appears in Collections:	[Chia-Chyi Liu] Periodical Articles [Pele Choi-Sing Chong] Periodical Articles [Joe Yen-Hung Chow] Periodical Articles

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