國家衛生研究院 NHRI:Item 3990099045/6227
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    題名: Gelatin nanoparticles as gene carriers for transgenic chicken applications
    作者: Tseng, CL;Peng, CL;Huang, JY;Chen, JC;Lin, FH
    貢獻者: Division of Medical Engineering Research
    摘要: To develop a safe and effective nonviral gene delivery system for transgenic chicken manipulation, we developed gelatin nanocarriers using a reporter plasmid (pEGFP-C1; enhanced green fluorescence protein, EGFP) that expressed EGFP. pEGFP-C1-containing gelatin nanoparticles (GP/pEGFP) were prepared using a water-ethanol solvent displacement method and characterized by size, surface charge, DNA loading, and DNA protection ability. For gene delivery, pEGFP-C1 was stably and efficiently encapsulated in GPs that were approximately 300 nm in diameter with a slight negative surface charge, which was prepared from gelatin solution at pH 8.0. Approximately, 85% of the plasmid DNA was encapsulated in the GPs. Electrophoresis results showed that the GPs provided protection against DNase I digestion. We used the GP/pEGFP as a vector to transfect cells and chicken embryos. The vector was nontoxic to cells, and GFP expression was effectively expressed 24 h after HeLa cell transfection. Direct injection was adapted for vector transport to the chicken embryo; injection in the area opaca (Ao) of the egg resulted in the highest hatching rate without affecting embryo development. GFP gene expression in embryo sections was observed 4 days after injection. The results of this study demonstrate that GPs are a suitable nonviral vector for delivering exogenous genes for transgenic chicken manipulation.
    日期: 2013-05
    關聯: Journal of Biomaterials Applications. 2013 May;27(8):1055-1065.
    Link to: http://dx.doi.org/10.1177/0885328211434089
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0885-3282&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000330324300012
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84878082830
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