新型热敏磁性阳离子载药系统共传递多柔比星及satb1-shrna靶向治疗胃癌实验研究-experimental study on co-delivery of doxorubicin and satb 1 - shrna in targeted treatment of gastric cancer by a novel thermosensitive magnetic cationic drug delivery system.docx
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新型热敏磁性阳离子载药系统共传递多柔比星及satb1-shrna靶向治疗胃癌实验研究-experimental study on co-delivery of doxorubicin and satb 1 - shrna in targeted treatment of gastric cancer by a novel thermosensitive magnetic cationic drug delivery system
本项目受国家自然科学基金资助:免疫磁性热敏载药系统共传递多柔比星和 SATB1-aiRNA 靶向治疗胃癌的实验 研究(项目编号:No.目录主要缩略词及中英文对照表………………………………………………………… ..中文摘要………………………………..………………………………………………………… 1Abstract…………………………………………………………………………………………5 正文 前言…………………………………………...…………………………………………………………10第一部分热敏阳离子载药系统的处方优化及热敏控释性研究…………...…………15第二部分热敏磁性阳离子载药系统的制备及磁响应性研究……………...…………25 第三部分热敏磁性阳离子载药系统基因传递性能研究及转染条件优化……...……33第四部分热敏磁性阳离子多柔比星和 SATB1-shRNA 共传递载药系统的制备及表 征…………………………………………………………………………………………..……………45第五部分热敏磁性阳离子多柔比星和 SATB1-shRNA 共传递载药系统抑瘤效果研 究………………………………………………………………………………………..………………59讨论…………………………………………………………………………………...…………………67 综述 …………………………………………………………………………….……………………85 附录(攻读学位期间发表论文目录)…………………………………………………95致谢……………………………………………………………………………………………96主要缩略词及中英文对照表英文缩写英文全称中 文 全 称LPLiposome脂质体TSLThermosensitive Liposome热敏脂质体CLCationic Liposome阳离子脂质体MLMagnetic Liposome磁性脂质体TSCLThermosensitive Cationic Liposome热敏阳离子脂质体TSMCLThermosensitive Magnetic Cationic Liposome热敏磁性阳离子脂质体DPPC1,2-Dipalmitoyl-sn-glycero-3-phosphocholine二棕榈酰磷脂酰胆碱DC-CholDC-CholesterolDC-胆固醇DOABDimethyldioct- adecylammonium bromide十八烷基二甲基溴化铵CholCholesterol胆固醇DOXDoxorubicin多柔比星(阿霉素)SATB1Special AT-rich binding protein富于 AT 碱基结合蛋白shRNAShort harpin RNA短发卡小 RNARNAiRNA interferenceRNA 干扰pDNAPlasmid DNA质粒 DNAMDRMultiple Drug Resistance多药耐药P-gpP-glycoproteinP-糖蛋白BCRPBreast cancer resistance protein乳腺癌耐药蛋白AMFAlternating Magnetic Field交变磁场FBSFetal bovine serum胎牛血清PBSPhosphate Buffer Solution磷酸盐缓冲液TEMTransmission Electron Microscopy透射电镜DSCDifferential Scanning Calorimetry差示扫描量热法VSMVibrating sample magnetometer振动样品磁强计SARSpecific Absorption Rate比吸收率TmTransition temperature相变温度PCRPolymerase Chain Reaction聚合酶链反应MTTMethyl thiazolyl tetrazolium四甲基偶氮唑蓝中文摘要新型热敏磁性阳离子载药系统共传递多柔比星及SATB1-shRNA 靶向治疗胃癌实验研究胃癌是危害人类健康最常见的恶性肿瘤之一,其发病率高,预后差。化疗是治疗 胃癌的重要策略之一,但是传统的化疗在临床应用中存在治疗效果差,副作用大等问 题。这主要是因为传统化疗多为全身给药,缺乏靶向性和控释性,无法在肿瘤局部达 到有效的药物浓度,同时相对较高的全身血药浓度则会引起诸多不良反应,而肿瘤多 药耐药(MDR)的产生更是严重降低了化疗的治疗效果。脂质体(LP)是一种优良 的药物或基因载体,根据其不同特点,可以分为很多种,本研究拟整合其中磁性脂质 体(ML),热敏脂质体(TSL)和阳离子脂质体(CL)各自的特征,设计一种同时具有磁 靶向性和热敏控释性的药
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