Recent studies have investigated the association between lncRNA BCAR4 and human cancers, and the results show that high expression of BCAR4 indicates aggressiveness and poor prognosis in various carcinomas 19, including osteosarcoma 27, 28, breast cancer 20, 21, 45, 46, non-small cell lung cancer (NSCLC) 23, 25, gastric cancer 29, prostate cancer 26, colorectal cancer 31, 32, 47, and cervical cancer 30. Here, BCAR4 is linked to osteosarcoma.