To date, some miRNAs have been verified to be the target of MBNL1-AS1, including miR-135a-5p in lung cancer and bladder cancer, miR-412-3p in colon cancer, and miR-338-5p in retinoblastoma [9, 34, 36, 38]. The gene discussed is MBNL1; the disease is retinoblastoma.