MALAT1 and cancer: Accumulating evidence has shown that lncRNAs play vital roles in multiple biological processes including proliferation, apoptosis, angiogenesis, drug resistance, and metastasis in various malignant tumors.34, 35, 36, 37, 38 MALAT1 is a highly conserved lncRNA that was originally identified and is highly expressed in non‐small‐cell lung cancer.39 MALAT1 presented diverse regulative functions on multiple malignant tumors including OS.40, 41, 42, 43 In the present study, we also revealed the carcinogenetic effect MALAT1 working on OS especially on OS cell proliferation and apoptosis.