茶多酚与油菜花粉提取物对前列腺癌细胞生长抑制效果比较研究

为研究茶多酚（TP）与油菜花粉提取物对前列腺癌细胞生长抑制效果的差异,应用细胞培养技术、MTT显色试验测定（IC₅₀）法、荧光显微镜观察癌细胞形态变化。结果表明,除花粉醇溶性提取物（B）对前列腺癌细胞没有明显抑制作用外,花粉水溶性提取物（A）及A（B）与TP的等比例混合物均有显著的抑制作用,A、A+TP、B+TP和TP的IC₅₀依次为1470、752、82、45 μg/mL,B+TP对PC-3的生长均有抑制作用,且成剂量效应和时间效应关系,经B+TP处理的PC-3癌细胞,用荧光显微镜可以看到癌细胞的凋亡小体。

Comparation on the Inhibitory Effect of Tea Polyphenols and Rape Pollen Extract on Prostate Cancer Cell

To study the effect of tea polyphenols (TP) or rape pollen extract (RPE) on the inhibition of PC-3 cell in vitro. MTT assay was used to evaluate the inhibition activity (IC50) on PC-3 proliferation, and fluorescence microscope was used to observe the apotosis cells. Results showed that water-soluble extract of pollen (A), ethanol-soluble pollen extract (B) and TP were proved to be effectively inhibited on the prostate cancer cell PC-3. The IC50 of A, A+TP, B+TP and TP were 1470, 752, 82 μg/mL and 45 μg/mL, respectively. B+TP showed effect-dose and effect-time relationship. B+TP was also found to induce cell apotosis as shown by changes in nuclear morphology and DNA fragmentation.