國家衛生研究院 NHRI:Item 3990099045/9609
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    題名: Immunogenicity of an adeno-vector vaccine expressing the F protein of a respiratory syncytial virus manufactured from serum-free suspension culture
    作者: Shao, HY;Hsu, HS;Yu, SL;Wu, SR;Hu, KC;Chang, CK;Liu, CC;Chow, YH
    貢獻者: Division of Vaccine Research and Development
    摘要: We have developed an efficient cell culture process to scale up the production of a recombinant adenovirus that expresses the membrane-trunked fusion protein of respiratory syncytial virus (RSV; Ad-F0DeltaTM). Adherent cells of human embryonic kidney (HEK) 293-derived cell, 293A, which supports the production of E1/E3-deleted Ad-F0DeltaTM when cultured in the presence of fetal bovine serum (FBS), were adapted to suspension growth under serum-free medium. In doing so, we studied the immunogenicity of Ad-F0DeltaTMsus, which propagated in a bioreactor that was cultured with serum-free suspension of 293A, in comparison with Ad-F0DeltaTMadh, which was produced from parental 293A cells that were adherently cultured in medium containing FBS. The size and morphology of Ad-F0DeltaTMsus and Ad-F0DeltaTMadh virions were identical upon inspection with electron microscopy. The results showed that anti-F IgG and RSV-neutralizing titer were raised in the serum of both mice that were intranasally immunized twice with Ad-F0DeltaTMsus or Ad-F0DeltaTMadh at two-week injection intervals. Furthermore, the immune responses persisted for six months after vaccination. Activation of F protein-specific CD8+ T cell's epitope associated IFN- and IL-4 was induced in both Ad-F0DeltaTMsus- and Ad-F0DeltaTMadh, but not in Ad-LacZsus, -immunized mouse splenocytes. No vaccine-enhanced lung inflammation, airway mucus occlusionor eosinophils infiltration were observed in Ad-immunized mice followed by RSV challenge; however, these symptoms were observed following immunization with formalin-inactivated RSV vaccine. These results indicate that the safety and potency of Ad-F0DeltaTM produced from either adherent cells or suspension and serum-free cells are the same.
    日期: 2016-06
    關聯: Antiviral Research. 2016 Jun;130:27-35.
    Link to: http://dx.doi.org/10.1016/j.antiviral.2016.03.011
    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:000376217600004
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84962278321
    顯示於類別:[周彥宏] 期刊論文
    [劉家齊] 期刊論文

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