Role of MicroRNA-101 on Proliferation and Migration of Prostate Cancer Cells
Background: MicroRNA-101 is a tumor inhibitor that stimulates tumor progression by reducing or inhibiting the expression of certain oncogenes. Some studies presented that cox-2 is target of MicroRNA 101 in prostate cancer process. Methods: MicroRNA-101 expression was detected by RT-PCR in PC3 cell lines. A and to determine cell proliferation we used MTT assays. Cell would heal and Flow cytometry assays were also used to detect cellular migratory ability and apoptosis, respectively. To assess cox-2 protein expression, Immunohistochemistry was used and data analyzed by data analysis by SPSS 20. Results: PC3 cells treated by MicroRNA-101 mimics displayed a 24% elevation in growth rate compared with blank (P < 0.01) at 48 h, and a 12% increase (P < 0.01) at 72 h. On the other hand, at 48 and 72 h after the MicroRNA-101 inhibitor transfection, proliferation of PC3 cell was decreased significantly. The early apoptosis rate in transfected PC3 cells with MicroRNA-101 mimic (74.4%) and inhibitor (22.8%) were significantly different at 72 h after transfection (P < 0.05), MicroRNA-101 mimics inhibited cell migration, adhesion, and spread was wider relative to the group of control and inhibitor for the PC3 cells. Expression of Cox-2 in transfected PC3 with the MicroRNA-101 inhibitor was higher than the mimic and control groups significantly (P < 0.01). Conclusion: MicroRNA-101 by Cox-2 can play key roles in the prostate cancer pathogenesis.