Original Article

An Immunohistochemical Study on the Localization and Intensity of Human Chorionic Gonadotropin, Human Placental Lactogen and Pregnancy Specific Beta-1 Glycoprotein in Gestational Trophoblastic Neoplasms by Immunoperocidase Method

Mi-kyung Lee, Woon-Sup Han, Ok-Kyung Kim
Author Information & Copyright
Department of Pathology, College of Medicihe, Ewha Womans University, Korea.
Corresponding author: Ok-Kyung Kim. Department of Pathology, College of Medicine, Ewha Womans University, Korea.

Copyright ⓒ 1987. Ewha Womans University School of Medicine. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Published Online: Jul 24, 2015


Fourty-six cases of gestational trophoblastic neoplasms (32 cases of hydatidiform mole; 4 cases of invasive mole; 10 cases of choriocarcinoma) and five cases of normal pregnancy as control group were studied for the distribution and intensity of human chorionic gonadotropin(HCG), human placental lactogen(HPL) and regnancy specific beta-1 glycoprotein(SP-1) by immunoperoxidase method. The following results were obtained. 1) The HGC was seen in the syncytiotropholasts, but not cytotrophoblasts of normal placental tissue and hydatidiform mole in all 3 grades. However, in the invasive mole and choriocarcinoma, the HCG was also seen in the cytotrophoblasts. 2) The HPL and SP-1 were only seen in the syncytiotrophoblasts in all those trophoblastic neoplasms. 3) The more malignancy was progressed, the more intensity of the HCG in the syncytiotrophoblasts was increase. Especially, it was severe intensity of positivity in the choriocarcinoma. 4) Intensity of the HPL in the syncytiotrophoblast had the tendency of increase in the invasive mole. But, it was variable in the choriocarcinoma. 5) Intensity of the SP-1 in the syncytiotrophoblast had the tendency of increase in the grade II of hydatidiform mole. But thereafter, it was decreased or variable in more aggressive trophoblastic neoplasms, In conclusion, the HCG, HPL and SP-1 were present in the syncytiotrophoblasts of normal placental tissue and various trophoblastic neoplasms. And, the more severe hyperplasia and undifferentiation of trophoblasts were seen, the more intensity of the HCG was increased, suggesting that the HCG can be a useful tumor marker of prognosis in gestational trophpblastic neoplasms.