Zhang Zhe, Zhang Guojun, Kong Chuize
Department of Urology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China.
Department of Hematology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110022, P.R. China.
Oncol Lett. 2016 Apr;11(4):2685-2691. doi: 10.3892/ol.2016.4228. Epub 2016 Feb 15.
The regulation of entry into and progression through mitosis is important for cell proliferation. Polo-like kinase 1 (PLK1) is involved in multiple stages of mitosis. Forkhead box protein M1 (FOXM1) has multiple functions in tumorigenesis and, in elevated levels, is frequently associated with cancer progression. The present study reports that FOXM1, a substrate of PLK1, controls the transcription mechanism that mediates the PLK1-dependent regulation of the cell cycle. The present study investigated the expression of PLK1 and FOXM1 in the clear renal cell carcinoma 769-P and ACHN cell lines, and indicated that the expression of PLK1 and FOXM1 are correlated in human renal cell cancer cell lines and that the suppression of PLK1 may decrease the expression of FOXM1. The knockdown of FOXM1 or PLK1 in renal cell cancer cell lines caused cell cycle progression to be blocked. As a result, the present study indicated the involvement of FOXM1 in PLK1-regulated cell cycle progression.
有丝分裂的进入和进程调控对细胞增殖至关重要。Polo样激酶1(PLK1)参与有丝分裂的多个阶段。叉头框蛋白M1(FOXM1)在肿瘤发生中具有多种功能,其水平升高常与癌症进展相关。本研究报道,作为PLK1底物的FOXM1控制着介导PLK1依赖性细胞周期调控的转录机制。本研究调查了PLK1和FOXM1在肾透明细胞癌769-P和ACHN细胞系中的表达,表明PLK1和FOXM1在人肾癌细胞系中的表达相关,且抑制PLK1可能降低FOXM1的表达。在肾癌细胞系中敲低FOXM1或PLK1会导致细胞周期进程受阻。因此,本研究表明FOXM1参与PLK1调控的细胞周期进程。