miR-144 participated in the regulation of lncRNA UCA1 on cell viability, migration, invasion, cell cycle transition, and cell apoptosis. After transfection with miR-144 mimic or miR-144 inhibitor, the (A, B) expression levels of miR-144, (C) cell viability, (D) relative migration, (E) relative invasion, (F) cell apoptosis, (G) expression levels of Bcl-2, Bax, caspase 3, caspase 9, and (H) expression levels of PCNA, cyclin A, cyclin E1, cyclin D1, CDK2, CDK4 were measured by qRT-PCR assay, trypan blue exclusion assay, Transwell assay, flow cytometry analysis, and Western blotting, respectively. Data were expressed as means ± SD of three independent experiments. *p < 0.05, **p < 0.01, ***p < 0.001.