SNHG4 and central nervous system cancer: Among the prognosis-related lncRNAs in HCC, SNHG3, SNHG4, and NRAV have been reported to function in bladder cancer (46), non-small cell lung cancer (47), osteosarcoma (48), colorectal cancer (49), breast cancer (50), gastric cancer (51), and glioma (52) through interactive molecular pathway studies.