LIMK1通过上调ROS/Src通路进而促进宫颈癌的进展

LIMK1 promotes the progression of cervical cancer by up-regulating the ROS/Src pathway

目的探究LIMK1对宫颈癌(cervical cancer)进展的影响。方法构建LIMK1过表达人宫颈癌HeLa细胞及C-33A细胞,将HeLa细胞接种于裸鼠皮下,观察肿瘤体积并以Western blot实验检测其瘤体细胞中NOX2、NOX4、p-Src、p-RUNX3、RUNX3以及MMP-9蛋白表达情况;将LIMK1过表达HeLa细胞及LIMK1过表达C-33A细胞培养于5%O 2条件下,并加入抗氧化剂,以Western blot实验检测细胞内LIMK1、NOX4、p-Src、p-RUNX3、RUNX3以及MMP-9蛋白表达情况,以划痕实验检测细胞迁移能力,以Transwell实验检测细胞迁移和侵袭能力,以单克隆增殖实验检测细胞增殖能力。结果接种LIMK1过表达HeLa细胞的裸鼠肿瘤体积明显增大,其NOX2、NOX4、p-Src、p-RUNX3以及MMP-9蛋白升高,而RUNX3蛋白表达降低;LIMK1过表达的HeLa细胞LIMK1、NOX4、p-Src、p-RUNX3以及MMP-9蛋白表达升高,RUNX3蛋白表达降低,同时LIMK1过表达的HeLa细胞及LIMK1过表达C-33A细胞的迁移和侵袭能力以及细胞增殖能力增强,而加入抗氧化剂后,细胞的NOX4、p-Src、p-RUNX3、RUNX3以及MMP-9蛋白表达水平以及细胞迁移、侵袭和增殖能力与LIMK1正常表达的细胞无显著差异。结论LIMK1通过促进ROS/Src通路进而促进宫颈癌细胞的迁移、侵袭和增殖能力,促进了宫颈癌的进展。

Objective To explore the effect of LIMK1 on the progression of cervical cancer(CC).Methods HeLa and C-33A human cervical cancer cells overexpressing LIMK1 were established and injected subcutaneously into nude mice.The tumor volume was measured and expression of NOX2,NOX4,p-Src,p-RUNX3,RUNX3,and MMP-9 proteins in tumor cells was detected by Western blot assays.LIMK1-overexpressing HeLa and C-33A cells were cultured in 5%O 2 with antioxidants.The protein expression of LIMK1,NOX4,p-Src,p-RUNX3,RUNX3 and MMP-9 in the cells was detected by Western blot assays.Cell migration was assessed by a scratch assay.Transwell assays were used to assess cell migration and invasion.A monoclonal proliferation assay was used to assess cell proliferation.Results The tumor volume in nude mice injected with LIMK1-overexpressing HeLa cells was increased significantly,and NOX2,NOX4,p-Src,p-RUNX3 and MMP-9 protein levels were increased,while RUNX3 protein expression was decreased.In LIMK1-overexpressing HeLa and C-33A cells,the protein expression of LIMK1,NOX4,p-Src,p-RUNX3,and MMP-9 was increased,RUNX3 protein expression was decreased,and cell migration,invasion,and proliferation were increased.However,after adding antioxidants,the expression levels of NOX4,p-Src,p-RUNX3,RUNX3 and MMP-9 proteins,and cell migration,invasion,and proliferation were not different from those of control cells.Conclusions LIMK1 promotes the progression of cervical cancer by enhancing the ROS/Src pathway,thereby promoting the migration,invasion,and proliferation of cervical cancer cells.