LINC01133 contribute to epithelial ovarian cancer metastasis by regulating miR-495-3p/TPD52 axis.

Currently, there is increasing evidence that long noncoding RNAs (lncRNAs) initiate and promote the progression of epithelial ovarian cancer (EOC). In this study, we revealed the roles and the potential mechanisms of long intergenic non-protein coding RNA 1133 (LINC01133) in EOC, which remains not well understood. We found that LINC01133 was upregulated in EOC tissues and cell lines. Besides, it was associated with the clinicopathological feature of metastasis. Functional experiments demonstrated that LINC01133 could facilitate cancer cell migration and invasion in vitro and tumor metastasis in vivo. Further molecular mechanisms studies indicated that LINC01133 and miR-495-3p reciprocally repressed expression of each other. We also realized that LINC01133 shared the same binding sites for miR-495-3p with tumor protein D52 (TPD52). We confirmed that TPD52 functioned as a direct target of miR-495-3p and mediated the enhancing effect of LINC01133 on cancer metastasis. Generally, our study showed that LINC01133 interacted with miR-495-3p to promote metastasis in EOC by regulating TPD52. LINC01133 also provided a potential therapeutic perspective for future clinical treatment.

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