背景及目的肿瘤干细胞是肿瘤化疗失败的根源。在乳腺癌、肺癌及结直肠癌中,研究表明化疗可以富集肿瘤干细胞。然而化疗富集肿瘤干细胞的机制并不明确。CD133分子作为分离肿瘤干细胞的常用标记,已在大量实体瘤中被证明。CD133+肝癌细胞已被证实具有肝癌干细胞的生物学特性。化疗能否富集肝癌干细胞,目前研究报道较少。我们主要探讨化疗能否富集肝癌干细胞(CD133+肝癌亚群细胞)并初步分析其调节肝癌干细胞的分子机制。 方法采用紫杉醇(Paclitaxel,PTX)药物大剂量冲击间歇诱导法建立稳定的多药耐药细胞(Huh7.5.1/PTX)。CCK-8试验检测耐药细胞及其亲本细胞的药物敏感性。WesternB...Background&Aims Cancer stem cells (CSCs) are a small subset of cancer cells,which may be inherently resistant to the cytotoxic effect of chemotherapy. Some studies suggest that CSCs could be enriched by chemotherapy in breast,lung and colorectal cancer. However, the mechanism of chemotherapy regulating CSCs remains unknown.Therefore,our aim is to investigate whether chemotherapy could enrich liv...学位:医学硕士院系专业:医学院临床医学系_外科学学号:2452008115346