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HP-10对结肠癌LoVo细胞体内外增殖的影响

, PP. 634-637

Keywords: 抗肿瘤,结肠癌,寡肽

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Abstract:

目的通过体内外实验检测六肽分子HP-10的细胞内转导能力和抗LoVo细胞增殖活性。方法MTT法观察75、37.5、18.75μmol/LHP-10对人结肠癌LoVo细胞增殖的影响,运用激光共聚焦显微术和流式细胞仪分别检测HP-10的LoVo细胞内转导能力以及对LoVo细胞周期和凋亡的影响;建立LoVo细胞裸鼠皮下移植瘤模型,验证750、375、75μmol/LHP-10在体内的抗结肠癌生长作用。结果75、37.5、18.75μmol/LHP-10对LoVo细胞体外增殖有明显的抑制作用,且呈剂量依赖性抑制(P<0.05);HP-10能直接跨膜进入LoVo细胞并促进LoVo细胞凋亡发生,但对其周期无明显影响;在结肠癌模型上HP-10能显著地抑制肿瘤生长(P<0.05)。结论HP-10是一种无需穿膜肽引导可直接进入细胞的寡肽,在体内外对LoVo细胞具有明显的抑制生长作用,这种作用是通过诱导细胞凋亡产生的。

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