LncRNA PCAT-1 regulates the proliferation, metastasis and invasion of cervical cancer cells.

OBJECTIVE: To investigate the effects of long non-coding RNA (lncRNA) PCAT-1 on the proliferation, metastasis, and invasion of cervical cancer cells. MATERIALS AND METHODS: LncRNA PCAT-1 small interfering RNA (siRNA) and negative siRNA were transfected into cervical cancer cell lines and the expression of lncRNA PCAT-1 in cells was confirmed by Real-time quantitative polymerase chain reaction (qPCR). Cell counting kit-8 (CCK-8) and colony formation assay were applied to detect the effect of lncRNA PCAT-1 on cell proliferation. The wound-healing assay was applied to test the effect of lncRNA PCAT-1 on cell metastasis. Matrigel cell invasion assay was performed to detect the impact of lncRNA PCAT-1 expression on invasion. RESULTS: After transfected with the long non-coding PCAT-1 siRNA into cervical cancer cell lines for 48 h, the lncRNA PCAT-1 cells were significantly down-regulated. The results of CCK-8, clonogenic and wound-healing assay showed that the decreased expression of lncRNA PCAT-1 attenuated the proliferation and metastasis of cells. The results of matrigel cell invasion assay manifested that the decreased expression of lncRNA PCAT-1 could reduce the invasion ability. The up-regulation of lncRNA PCAT-1 was associated with poor prognosis of patients with cervical cancer. CONCLUSIONS: LncRNA PCAT-1 siRNA transfected into cervical cancer cell lines can effectively lower the expression of lncRNA PCAT-1, while lncRNA PCAT-1 expression can inhibit the proliferation, metastasis and invasion abilities of cervical cancer cells.