These findings may also reflect high KLK4 levels in ascites fluid although previous studies showed a low level of KLK4 in ascites or effusions from ovarian cancer patients [56], [57], In the future, it will be important to correlate KLK levels in ascites with that in cells derived from ascites as well as serum to determine the prognostic utility of such information. This evidence concerns the gene KLK4 and ovarian carcinoma.