However, this finding is contradictory to an in vitro study by Luan et al. (2021) that reported on the low expression of CDKN2A in the cervical cancer cell lines and that the overexpression of CDKN2A inhibits cell proliferation and invasion of cervical cancer cells by arresting the cell cycle in the G1 phase [28]. The gene discussed is CDKN2A; the disease is cervical carcinoma.