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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/25149


    標題: Synthesis and Characterizations of New Glycidyl-based Cationic Poly(aminoester) and Study on Gene Delivery
    作者: Chao-Hsien Lin
    Yu-Chih Hsiao
    Min-Da Shau
    貢獻者: 化粧品應用與管理系
    生物科技系(所)
    關鍵字: Glycidyl-based
    Poly(aminoester)
    Transfection
    Cytotoxicity
    日期: 2010-06
    上傳時間: 2012-03-29 13:46:04 (UTC+8)
    摘要: New glycidyl-based (epoxide-based) poly(aminoester) (EPAE) containing hydroxyl and amino groups in the backbone and side chain was synthesized. EPAE self-assembled readily with the plasmid DNA(pCMV-βgal) in HEPES buffer and was characterized by dynamic light scattering, Zeta-potential, fluorescence images, and XTT cell viability assays. To evaluate the effect of molecular weight of EPAE system on transfection, EPAE polymers with three different molecular weights (EPAE22k, EPAE18k, and EPAE8k) were also prepared. This study found that all EPAE polymers were able to bind plasmid DNA and yielded positively charged complexes with a nano-sized particles (200 nm). The EPAE22k/DNA and EPAE18k/DNA complexes were able to transfect COS-7 cell in vitro with higher transfection efficiency than other EPAE8k/DNA. These results demonstrated that molecular weight of EPAE system had a significant effect on transferring ability. Examination of the cytotoxicity of PEI25k and EPAEs system revealed that EPAEs system had lower cytotoxicity. In this article, EPAEs seemed to be a novel cationic poly(aminoester) for gene delivery and an interesting candidate for further study.
    關聯: International Journal of Pharmaceutical 393(1-2):p.136-143
    Appears in Collections:[化妝品應用與管理系(所)] 期刊論文
    [生物科技系(所)] 期刊論文

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