桧木醇诱导人肾透明细胞癌786-O细胞凋亡及其机制研究

Hinokitiol induces clear cell renal cancer 786-O cell apoptosis via autophagy induction

目的:探讨桧木醇(hinokitiol)对人肾透明细胞癌786-O细胞株的增殖抑制作用及诱导凋亡效应,初步阐明其机制。方法:采用CCK-8法检测桧木醇对肾癌786-O细胞增殖的抑制作用;流式细胞术检测细胞凋亡情况;转染EGFP-LC3后镜下观察细胞自噬状态;采用Western blot对细胞Caspase-3剪切体、LC3和P62蛋白表达量进行检测。结果:桧木醇可以显著抑制肾癌786-O细胞增殖,通过激活Caspase途径诱导细胞凋亡。桧木醇诱导肾癌786-O细胞发生自噬,LC3蛋白表达显著上调,而P62蛋白表达下调。结论:桧木醇可显著抑制肾癌786-O细胞的增殖并通过过度激活细胞自噬促进肾癌细胞凋亡。

Objective： To investigate the effects of hinokitiol on the proliferative inhibition and apoptosis induction in human clear cell renal cancer 786-O cells. Methods：CCK-8 assays were performed to analyze the effects of hinokitiol on the proliferation of 786-O cells. The apoptosis rate was determined by flow cytometry. EGFP-LC3 microscopy assays were performed to assess the autoph-agy flux. Cleaved Caspase-3, LC3, and P62 were detected by Western blot. Results： Hinokitiol could inhibit the proliferation of the 786-O cells and could induce cell apoptosis via Caspase pathway. Hinokitiol induced the autophagy of 786-O cells, increased LC3 ex-pression, and downregulated P62 expression. Conclusion： Hinokitiol can inhibit the proliferation of 786-O cells and can induce cell apoptosis via autophagy induction.