MDA-MB-468 HBC and HeLa cervical cancer cells (wild-type, vector transfected, or transfected with catalytically-inactive and antisense cDNAs of above MAPK/SAPK isoforms) were then treated with DNA damage inducing agents ADR, Etoposide, and CFM-4, -5, and -4.16 compounds, followed by determination of cell viabilities by MTT assays as noted in methods. Here, MAPK9 is linked to cervical cancer.