Glycodelin (previously called placental protein 14 or PP14, α2-globulin, progesterone-associated endometrial protein or zona-binding inhibitory factor) has been originally identified as the molecule responsible for the immunosuppressive activity in the decidua during early gestation (28), but is also expressed in tumors of the reproductive tract, e.g., ovarian carcinoma, where its glycosylated form glycodelin A (GdA) correlated with unfavorable prognosis (29). The gene discussed is PAEP; the disease is ovarian carcinoma.