GAS5 and breast cancer: After the discovery and validation of two IncRNAs, uc004cox.4 and ENST00000414075 (GAS5), significant changes were observed between patients with BC and the control group; uc004cox.4 was up-regulated and GAS5 was down-regulated in BC patients, reaching AUC values even higher than urine cytology; 0.799 and 0.767, respectively.