MBNL1 and neoplasm: Next, the transfected A549-SP+ were subcutaneously injected into the armpits of female BALB/c nude mice, which indicated that miR-301b-3p depletion or lncRNA MBNL1-AS1 elevation reduced the mean tumor volume and weight, and upregulation of both lncRNA MBNL1-AS1 and miR-301b-3p contributed to normal tumor formation (Fig. 8a–c).