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鹅绒藤总生物碱体外抗肿瘤作用的实验研究

Keywords: 生长抑制,细胞周期,细胞凋亡,鹅绒藤总生物碱

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Abstract:

目的研究鹅绒藤总生物碱(CCTA)对体外培养的肿瘤细胞的抑制作用及其可能的作用机制。方法以人宫颈癌细胞Hela、人结肠癌细胞SW480为研究对象,用不同浓度的CCTA分别对上述细胞作用24、48、72、96h后用MTT法测其抑制率,流式细胞仪测其细胞周期及凋亡率。结果CCTA对Hela细胞和SW480细胞均有不同程度的抑制作用,且呈时间和剂量依赖性;可使Hela细胞位于S期的细胞明显增多,而SW480细胞位于G0/G1期的细胞明显增多;CCTA作用后,Hela细胞和SW480细胞凋亡率均显著增加。结论CCTA可通过阻断细胞周期、诱导细胞凋亡来抑制体外培养Hela细胞和SW480细胞的生长。

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