PTGS2 and rheumatoid arthritis: The number of apoptotic synoviocytes in the RA + mimics group was significantly increased in the miR-101-3p mimics group, sh-PTGS2 group and miR-101-3p inhibitors + sh-PTGS2 group versus the mimic-NC group, sh-NC group, and the miR-101-3p inhibitors + sh-NC group, respectively (all P<0.05).