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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/24205


    標題: Biological Profiles of Cationic Dendrimers
    作者: Jung-Hua Kuo (郭榮華)
    日期: 2011
    上傳時間: 2011-06-23 14:57:00 (UTC+8)
    摘要: Cationic dendrimers are a family of highly branched polymers characterized by their unique structure and properties. Cationic dendrimers have attractive nano-characteristics for the delivery of nucleic acid and various biomedical applications. A variety of cationic dendrimers, such as starburst polyamidoamine (PAMAM), polypropylenimine (DAB) and phosphorus-containing dendrimers, have been studied as potent gene delivery systems. Before using cationic dendrimers in vivo, their biological profiles must be fully understood. Here we examined : (1) the apoptotic and necrotic effects of starburst PAMAM and DAB dendrimers in cultured RAW 264.7 murine macrophage-like cells; (2) the intracellular responses- reactive oxygen species (ROS) content, mitochondria membrane potential, cell size and complexity, and cell cycle profiles- in U-937 human macrophages treated with poly(propyleneimine) dendrimers generation 2 (DAB 2.0) and 3 (DAB 3.0); (3) the non-specific interaction of remnant cationic dendrimers with total RNA after isolation directly from cells in vitro; and (4) the changes in global gene-expression profile in human cervical cancer HeLa cells exposed to nonactivated and activated PAMAM dendrimers, alone or in complexes with plasmid DNA (dendriplexes). Our findings provide a novel insight into the biological profiles at the molecular level that dendrimers cause in various cells.
    關聯: 2011年台俄有機、藥物與生物化學交流暨藥物化學研討會,起迄日:2011/04/06~2011/04/05,地點:溪頭台大實驗林
    Appears in Collections:[藥學系(所)] 會議論文
    [藥理學院] 2011年台俄有機、藥物與生物化學交流暨藥物化學研討會

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