MBNL1 and neoplasm: Through the tumorigenesis experiment in vivo, we found that either upregulating MBNL1-AS1 or inhibiting miR-301b-3p restrained tumor growth in vivo, while miR-301b-3p mimic abolished the tumor-suppressive effect of MBNL1-AS1 upregulation (Figures 4(d)–4(f)).