While miR-720 has recently been reported to target the oncogene twist family BHLH transcription factor 1 (TWIST1) involved in tumor metastasis in breast cancer [35], the microRNA entry for miR-720 was removed from miRBase after Schopman et al. [36] proposed that the microRNA was actually a mis-annotated tRNA fragment. This evidence concerns the gene TWIST1 and neoplasm.