Oncology reports · 2016
LSD1-mediated epigenetic modification contributes to ovarian cancer cell migration and invasion.
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Li Yuanxia, Wan Xiaolei, Wei Ye, Liu Xiuwen, Lai Wensheng, Zhang Liuping, Jin Jie, Wu Chaoyang, Shao Qixiang, Shao Genbao, Lin Qiong
Аннотация
Lysine-specific demethylase 1 (LSD1) has been implicated in the process of tumor progression at various steps, but its role in epithelial-messenchymal transition (EMT) and the migration of ovarian cancer cells remains obscure. In this study, we demonstrated the effect of LSD1 on ovarian cancer cell migration and the regulatory role of LSD1 in the expression of EMT markers. Inhibition of LSD1 expression impaired the migration and invasion of HO8910 ovarian cancer cells. In contrast, overexpression of LSD1 enhanced the cell migration and invasion of HO8910 cells. Mechanistic analyses showed that LSD1 promoted cell migration through induction of N-cadherin, vimentin, MMP-2 and inhibition of E-cadherin. Furthermore, LSD1 interacted with the promoter of E-cadherin and demethylated histone H3 lysine 4 (H3K4) at this region, downregulated E-cadherin expression, and consequently enhanced ovarian cancer cell migration. These data indicate that LSD1 acts as an epigenetic regulator of EMT and contributes to the metastasis of ovarian cancer.