MAPK9 and ovarian cancer: Four genes—MAPK8, MAPK9, CEP170, and CEP63— were co-existing in the above two analyses, and the correlation between WDR62 and these four genes in ovarian cancer was analyzed by using the GEPIA2 database, the correlation between MAPK8 and WDR62 was higher (R = 0.4, P < 0.05) (Fig. 5C).