Abstract
Emerging evidence shows that long noncoding RNA (lncRNA) is implicated in numerous kinds of malignant cancers, including ovarian cancer. In this study, we focused on the expression and function of long noncoding RNA lung cancer associated transcript 1 (LUCAT1) in ovarian cancer progression. We indicated that LUCAT1 expression was significantly upregulated in ovarian cancer tissues. Moreover, LUCAT1 expression was positively associated with tumor metastasis and clinical stage. Elevated expression of LUCAT1 decreased the survival rate of patients with ovarian cancer. In addition, we revealed that repression of LUCAT1 significantly suppressed the proliferation, migration and invasion, whereas promoted apoptotic rate. Through online predictive tools and functional experiments, we demonstrated that LUCAT1 and HOXA13 were targets of miR-612. We showed that LUCAT1 and miR-612 suppressed each other in a reciprocal way. Moreover, LUCAT1 promoted HOXA13 expression through inhibition of miR-612, eventually leading to ovarian cancer development. In conclusion, our findings revealed a novel molecular mechanism that LUCAT1/miR-612/HOXA13 pathway modulates ovarian cancer progression.
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