Abstract:Abstract: Objective To explore the effect of LIMK1 on the progression of cervical cancer (CC). Methods LIMK1-overexpressed human cervical cancer HeLa cells were constructed and inoculated subcutaneously in nude mice. The tumor volume was observed and the expressions of NOX2, NOX4, p-Src, p-RUNX3, RUNX3, and MMP-9 proteins in the tumor cells were detected by Western blot assay. LIMK1-overexpressed HeLa cells were cultured under 5%O2 and added with antioxidants. The protein expressions of LIMK1, NOX4, p-Src, p-RUNX3, RUNX3, and MMP-9 in the cells were detected by Western blot assay. The cell migration ability was detected by scratch assay. Transwell assay was used to detect cell migration and invasion ability. Monoclonal proliferation assay was used to detect cell proliferation ability. Results The tumor volume of nude mice inoculated with LIMK1-overexpressed HeLa cells increased significantly, and NOX2, NOX4, p-Src, p-RUNX3, and MMP-9 proteins increased, while RUNX3 protein expression decreased. In LIMK1-overexpressed HeLa cells, the protein expressions of LIMK1, NOX4, p-Src, p-RUNX3, and MMP-9 were increased, RUNX3 protein expression was decreased, while the cell migration, invasion, and proliferation ability were increased. However, after adding antioxidants, the expression levels of NOX4, p-Src, p-RUNX3, RUNX3, and MMP-9 proteins, and the ability of cell migration, invasion, and proliferation were not different from those of HeLa cells with normal expression of LIMK1. Conclusion LIMK1 promotes the progression of cervical cancer by promoting the ROS/Src pathway, thereby promoting the migration, invasion, and proliferation ability of cervical cancer cells.