In recent years, lncRNA UCA1 has been reported to be the most abundant isoform in various malignant tumors, such as bladder cancer, breast cancer, hepatocellular carcinoma and pancreatic cancer, and play an important role in tumor invasion and metastasis, angiogenesis, immune escape and chemotherapeutic drug resistance 17, 20-30. The gene discussed is UCA1; the disease is cancer.