PAQR3 and neoplasm: Further rescue experiments showed that miR-203a-3p mimics significantly attenuated the repressive effects of hsa_circ_0043280 on the proliferation, migration, invasion, and EMT of CCa cells, thus indicating that hsa_circ_0043280 could suppress tumor growth and metastasis in CCa via the miR-203a-3p/PAQR3 axis.