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  • Title: Relation between serum levels of tissue polypeptide antigen (TPA) and cancer antigen 125 (CA125) and their immunohistochemical identification in benign and malignant gynecological disease.
    Author: Fukazawa I, Inaba N, Ota Y, Sato N, Shirotake S, Iwasawa H, Sato T, Takamizawa H, Wiklund B.
    Journal: Arch Gynecol Obstet; 1988; 243(1):41-50. PubMed ID: 3165614.
    Abstract:
    We studied immunohistochemical stains for TPA and CA125 in patients with benign and malignant gynecologic diseases. The results were as follows: (1) CA125 was not found in ovarian mucinous cystadenocarcinoma but was demonstrated immunohistochemically in 82% of ovarian serous cystadenocarcinomas and 83% of Krukenberg's tumors. (2) TPA was demonstrated in 65% of ovarian serous and 75% of ovarian mucinous cystadenocarcinomas, and in 58% of endometrial carcinomas. (3) TPA was found in all trophoblastic tumors examined, while CA125 was found in none. Eighty-three percent of patients with trophoblastic diseases had raised serum TPA levels. (4) When serum CA125 levels were raised CA125 was demonstrated immunohistochemically in 71% of patients with ovarian serous cystadenocarcinomas, 67% of patients with Krukenberg's tumors and 100% of patients with tubal carcinomas. (5) Despite elevated serum levels, CA125 and TPA were not identified by immunohistochemistry in 64% cases of benign ovarian disease and in 80% of patients with uterine myomata. (6) It would seem that CA125 was more easily released from tumor cells than TPA.
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