Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/24205
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    题名: Biological Profiles of Cationic Dendrimers
    作者: Jung-Hua Kuo (郭榮華)
    日期: 2011
    上传时间: 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
    显示于类别:[Dept. of Pharmacy] Proceedings
    [Pharmacy and Science] 2011 Taiwanese-Russian Organic, Medicinal and Bio Chemistry Interactions & PST Medicinal Chemistry Symposium

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