【摘要】 目的:姜黄素对前列腺癌细胞株LNCap增殖和凋亡的影响。方法:用不同剂量的姜黄素分别处理LNCap细胞,显微镜下观察细胞形态;MTT法检测细胞生长情况;流式细胞技术(FCM)检测细胞凋亡率;然后检测姜黄素处理LNCap细胞后培养液中总前列腺特异抗原(PSA)的变化,并用免疫印迹W estern b lotting技术检测雄激素受体(AR)的表达。结果:姜黄素能够抑制前列腺癌细胞LNCap的增殖和生长,40μmol/L作用24 h最强,细胞存活率为对照的40%;姜黄素诱导LNCap细胞凋亡,细胞形态呈凋亡特征,且40μmol/L作用最强,凋亡率为9.23%;姜黄素抑制LNCap细胞PSA表达,且40μmol/L姜黄素处理细胞24 h对PSA表达的抑制作用最强,PSA含量仅为对照的20%;W estern b lotting检测结果显示姜黄素抑制AR的表达,并且对AR表达的抑制程度依赖于姜黄素的浓度。结论:姜黄素抑制LNCap细胞增殖,诱导细胞凋亡,且表现出时间和剂量依赖性。姜黄素抑制LNCap细胞PSA与AR受体的表达。更多还原

【Abstract】 AIM: To observe the effect of curcumin on the proliferation and apoptosis of prostate cancer cell line LNCap.METHODS: LNCap cells were treated with different doses（10 μmol/L,20 μmol/L,30 μmol/L,40 μmol/L） of curcumin and its effects were analyzed in cell growth and apoptosis by microscope,MTT colorimetric assay and flow cytometry.The expression of prostate specific antigen（PSA） was measured by AXSYM^TM system-chemical luciferase methods and expression of androgen receptor （AR） was detected by Western blotting.RESULTS: The results showed that curcumin inhibited the proliferation of LNCap cells.The cell growth was inhibited by curcumin in a dose dependent manner and the optimal dose and time was 40 μmol/L,24 h.Curcumin induced apoptosis in LNCap cells,the most dramatic dose was 40（μmol/L） curcumin,at this dose the apoptosis rate was 9.23%. Curcumin inhibited the expression of PSA in LNCap cells and the most dramatic dose and time was 40 μmol/L,24 h.The PSA in this group was 20% of the control group.Curcumin inhibited the expression of AR on prostate cancer cells.CONCLUSION: Curcumin decreases proliferation and induces apoptosis in LNCap cells in a dose-dependent manner.Curcumin also inhibites the expression of PSA and AR on LNCap cells.更多还原