中文摘要：

本研究旨在探索CLA-PTX对黑色素瘤B16-F10细胞的体内外抗肿瘤作用。选择鼠源B16-F10细胞系作为研究模型。研究CLA-PTX体外细胞毒,细胞凋亡,细胞周期作用,以及CLA-PTX体外细胞摄取作用。用荷瘤C57BL6/N小鼠研究CLA-PTX的体内抗肿瘤作用。体外细胞毒研究结果表明：CLA-PTX的IC50为（4.25±0.43）μM,优于紫杉醇（6.70±0.80）μM（P〈0.01）。与空白组和紫杉醇组相比,CLA-PTX可使细胞总凋亡比例增加（P〈0.01）。与空白对照组相比,CLA-PTX将细胞周期阻滞于S期,而紫杉醇则使细胞在G2‐M期蓄积。CLA-PTX的细胞摄取量显著高于紫杉醇（P〈0.01）。体内抗肿瘤药效显示,CLA-PTX抗肿瘤活性显著高于空白对照组和紫杉醇组（P〈0.01或P〈0.05）。上述结果表明,CLA-PTX对B16-F10细胞有显著体内外抗肿瘤作用。

英文摘要：

The purpose of this study was to investigate the potential antitumor efficacy of conjugated linoleic acid-paclitaxel （CLA-PTX） on B16-F10 melanoma cell line in vitro and in vivo. The in vitro cytotoxicity, apoptosis and cell cycle of CLA-PTX were investigated. The in vitro cellular uptake of CLA-PTX in B16-F10 cells was also analyzed. The antitumor activity of CLA-PTX was also evaluated in B16-F10 tumor-bearing C57BL6/N mice in vivo. The in vitro cytotoxicity results showed that the IC50 of the CLA-PTX is （4.25±0.43） μM, compared with that of （6.70±0.80） μM in PTX treatment group （P〈0.01）. CLA-PTX increased the percentage of total apoptotic cells compared with that of control and PTX treatment groups （P〈0.01）. Compared with untreated cells, CLA-PTX arrested cell cycle progression at the S phase, whereas PTX caused accumulation of cell at GE-M phase both along with the reduction of the cellular fraction arrested at the G1 phase. The amount of cellular uptake of CLA-PTX was significantly higher than that of PTX （P〈0.01）. The in vivo antitumor activity of CLA-PTX was significantly higher than that of control and PTX treatment groups （P〈0.01 or P〈0.05）. In conclusion, our study demonstrated that CLA-PTX has significant antitumor activity in B 16-F 10 cell line.