RT Journal Article SR Electronic T1 S-Phase Cell Cycle Arrest, Apoptosis, and Molecular Mechanisms of Aplasia Ras homolog Member Iā€“Induced Human Ovarian Cancer SKOV3 Cell Lines JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP 629 OP 634 DO 10.1097/IGC.0000000000000105 VO 24 IS 4 A1 Zhu, Qiaoying A1 Hu, Jianming A1 Meng, Huijuan A1 Shen, Yufei A1 Zhou, Jinhua A1 Zhu, Zhihong YR 2014 UL http://ijgc.bmj.com/content/24/4/629.abstract AB Objective Aplasia Ras homolog member I (ARHI) is associated with human ovarian cancer (HOC) growth and proliferation; however, the mechanisms are unclear. The purpose of this study was to investigate ARHI effects in HOC SKOV3 cells.Methods We transfected SKOV3 cells with PIRES2-EGFP-ARHI and measured growth inhibition rates, cell cycle distribution, apoptosis rates, and expression of P-STAT3 (phosphorylated signal transduction and activators of transcription 3) and P-ERK (phosphorylated extracellular signal regulated protein kinase).Results Our data showed significant inhibition of growth, significantly increased S-phase arrest and apoptosis rates, and reduction of P-STAT3 and P-ERK1/2 expression levels.Conclusions We propose the mechanism may involve ARHI-induced phosphorylation of ERK1/2 and STAT3 protein kinases, thereby blocking proliferation signaling pathways, to induce HOC SKOV3 apoptosis.