miR-200c targeting GLI3 inhibits cell proliferation and promotes apoptosis in non-small cell lung cancer cells

Lung cancer is a common malignant tumor with low cure rate. It has an easy recurrence and metastasis. This study explored whether miR-200c could regulate the biological behavior of non-small cell lung cancer cells through targeting GLI3. Luciferase reporter gene analysis was used to verify the interaction between miR-200c-3p and GLI3. miR-200c-3p and GLI3 were transiently overexpressed into A549 cells. The cell viability rate was detected by cell counting kit-8, cell invasion ability was detected with Transwell, cell apoptosis and cell cycle was determined by flow cytometry, and the expression of GLI3 was detected using quantitative polymerase chain reaction and Western blot, to verify the effect of the interaction between miR-200c-3p and GLI3 on the cell activities. miR-200c-3p overexpression could inhibit cell viability and invasion, promote apoptosis, induce G0/G1 arrest, and inhibit cell division. GLI3 overexpression could reverse the miR-200c-3p inhibition on cell cycle, reduce the number of cells in the G0/G1 phase and increase the number of cells in the S phase. miR-200c-3p overexpression in A549 cells could inhibit cell viability and invasion, and promote apoptosis. miR-200c-3p could target GLI3 to regulate cell cycle and inhibit cell proliferation.

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