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重庆医科大学附属第一医院泌尿外科,重庆 421800
汤洋斌,Email:3071019337@qq.com,研究方向:泌尿系统疾病。
全 真,Email:tyb15073492311@163.com 。
收稿:2024-03-14,
修回:2024-05-06,
录用:2024-05-13,
纸质出版:2024-10-28
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汤洋斌,杨果,吴小候,等.DLC-1通过Rho通路抑制耐恩杂鲁胺前列腺癌细胞的增殖与侵袭能力[J].重庆医科大学学报,2024,49(10):1061-1066.
Tang Yangbin,Yang Guo,Wu Xiaohou,et al.Deleted in liver cancer-1 inhibits the proliferation and invasion of enzalutamide-resistant prostate cancer cells via the Rho pathway[J].Journal of Chongqing Medical University,2024,49(10):1061-1066.
汤洋斌,杨果,吴小候,等.DLC-1通过Rho通路抑制耐恩杂鲁胺前列腺癌细胞的增殖与侵袭能力[J].重庆医科大学学报,2024,49(10):1061-1066. DOI: 10.13406/j.cnki.cyxb.003595.
Tang Yangbin,Yang Guo,Wu Xiaohou,et al.Deleted in liver cancer-1 inhibits the proliferation and invasion of enzalutamide-resistant prostate cancer cells via the Rho pathway[J].Journal of Chongqing Medical University,2024,49(10):1061-1066. DOI: 10.13406/j.cnki.cyxb.003595.
目的
2
探索肝癌缺失因子1(deleted in liver cancer 1,DLC-1)对耐恩杂鲁胺前列腺癌(prostate cancer,PCa)细胞增殖,侵袭和凋亡的影响以及作用机制。
方法
2
体外以不同浓度的恩杂鲁胺药物培养人前列腺癌lncap及C4-2细胞株6个月以上,构建恩杂鲁胺耐药细胞系lncap-R,C4-2-R。CCK-8法检测其IC
50
,验证恩杂鲁胺耐药株是否构建成功。利用慢病毒转染lncap-R,C4-2-R,以敲低和过表达DLC-1,采用克隆实验、Transwell实验和流式细胞术检测DLC-1对耐恩杂鲁胺的前列腺癌细胞的增殖、侵袭和凋亡的影响。
结果
2
与对照组相比,过表达组DLC-1显著抑制了2个耐药株的增殖和侵袭进程。机制上,WB实验结果表明DLC-1表达与2个耐药株中Rho蛋白的表达呈负相关。Rho抑制剂rhosin逆转了因敲低DLC-1后lncap-R细胞凋亡减少的情况。
结论
2
DLC-1可以下调耐药株中的Rho蛋白的表达,并抑制耐药株的增殖和侵袭。
Objective
2
To investigate the effect of deleted in liver cancer-1(DLC-1) on the proliferation,invasion,and apoptosis of enzalutamide-resistant prostate cancer cells and its mechanism of action.
Methods
2
Hμmol/Lan prostate cancer lncap and C4-2 cell lines were cultured
in vitro
with different concentrations of enzalutamide for more than 6 months,and enzalutamide-resistant cell lines were co
nstructed as lncap-R and C4-2-R. IC
50
was measured by CCK-8 assay to verify the successful construction of enzalutamide-resistant cell lines. lncap-R and C4-2-R were transfected by lentivirus to achieve the knockdown and overexpression of DLC-1,and colony formation assay,Transwell assay,and flow cytometry were used to observe the effect of DLC-1 on the proliferation,invasion,and apoptosis of enzalutamide-resistant prostate cancer cells.
Results
2
Compared with the control group,the overexpression group showed that DLC-1 significantly inhibited the proliferation and invasion of the two enzalutamide-resistant cell lines. As for mechanism of action,Western blot showed that the expression of DLC-1 was negatively correlated with the expression of Rho protein in both enzalutamide-resistant cell lines. The Rho inhibitor rhosin reversed the reduction in the apoptosis of lncap-R cells due to knockdown of DLC-1.
Conclusion
2
DLC-1 can downregulate the expression of Rho protein in drug-resistant cell lines and inhibit their proliferation and invasion.
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