MALAT1 and acute lymphoblastic leukemia: Since the concept of lncRNA is just initiated in a short time, in-depth studies of its mechanisms underlying ALL are very limited, and only a few studies have reported several specific lncRNAs that are involved in ALL pathogenesis, such as lncRNA MALAT1, lncRNA VPS9D1-AS1, and lncRNA TEX41 (18, 30, 31).