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肝癌TIL细胞转导IL |
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李东复 王树和 太京华 张国荣
中国图书分类号 R392.12 摘 要 目的:为探讨IL-2基因导入肝癌浸润淋巴细胞及对其生物学活性的影响。方法:应用逆转录病毒载体介导IL-2基因导入人肝癌浸润淋巴细胞(TIL),同时对经转导IL-2基因的肝癌浸润淋巴细胞的杀伤活性,增殖能力及表型等进行了观察。结果:转导IL-2基因后的肝癌浸润淋巴细胞能表达一定量的IL-2,明显高于未转导细胞,但其杀伤肿瘤细胞活性,增殖能力及表型等没有显著变化。结论:应用逆转录病毒载体介导IL-2基因导入人肝癌浸润淋巴细胞获得成功,亦有IL-2基因产物表达。 关键词 逆转录病毒载体 基因转移 肝癌浸润淋巴细胞(TIL)
Study on transferation with PZIP new SV.IL-2 gene complexs into TIL from hepatocellular carcinoma and effect on biological activities of transfered IL-2 gene TIL
LI Dong-Fu, Wang Shu-He, TAI Jing-Hua et al. Department of Digestive Medicine of Second Teaching Hospital, Bethune University of Medical Sciences, Changchun 130041
Abstract Objective:To study on transferation with PZIP new SV.IL-2 gene complexs into TIL from hepatocellular carcinoma and effect on biological activities of transfered IL-2 gene TIL.Methods:An eukaryotic expression vector containing human interleukin-2 gene (PZIP new SV.IL-2)was transduced into TIL from hepatocellular carcinoma by retroviral vector gene complexs and in same time phenotype,killing activity and proliferation of transduced IL-2 gene TIL were observed.Results:Transduced IL-2 gene TIL could secret general level IL-2 that was higher than that of TIL secretion,killing activity,proliferation and phenotype of transduced IL-2 gene TIL were no significant change.Conclusion:It was successful that human IL-2 gene was transduced into TIL and TIL cells of transduced IL-2 gene began to secrete IL-2 after 48 h. Key words Retroviral vector Gene transduction Tumor infiltrating cells
免疫基因治疗是随着现代分子生物学研究进展而出现的将免疫基因通过载体转染细胞进而表达免疫分子,达到治疗肿瘤目的的一种新的治疗方法[1]。借助逆转录病毒载体将细胞因子基因导入肿瘤细胞或其他载体细胞,并使转导细胞表达基因产物,在体内提高宿主对肿瘤的免疫反应,是国内外肿瘤基因治疗的研究热点之一。本实验通过逆转录病毒载体将IL-2基因导入人肝癌TIL细胞,获得导入基因稳定表达,现报道如下。
1 材料与方法 1.1 细胞系及其培养 病毒包装细胞系PA317,小鼠成纤维细胞NIH3T3及肝癌TIL细胞均培养在含10%小牛或人AB型血清IMDM培养液中,37℃,5%CO2饱和湿度的条件下每3天换液传代一次。 1.2 含IL-2cDNA逆转录病毒载体的构建 逆转录病毒载体PZIP NeoSV.[1] [2] 下一页 上一个医学论文: 多疗程化疗肿瘤患者免疫功能变化的研究 下一个医学论文: 粘附分子选择素在IgA肾病中变化的临床意义
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