Wang et al. [15] summarized the function of miR-101 in cancer cell proliferation, migration, and apoptosis via SRY-box transcription factor 9 (SOX9), enhancer of zeste 2 polycomb repressive complex 2 subunit (EZH2), Rac family small GTPase 1 (Rac1) etc. in 2018 [15]. This evidence concerns the gene SOX9 and cancer.