Effect of immunization against human chorionic gonadotropin (hCG) on transplantation of Yoshida ascitic tumour.

The human chorionic gonadotropin (hCG) is considered a marker of DNA derepression on neoplastic cells. The human chorionic gonadotropin antibodies (anti-hCG antibody) inhibit the growth of yoshida tumour cells in preimmunized recipient rats. A close relationship between the anti-hCG antibodies and tumour cell transplantation has been observed. This relationship and further experimental implications are briefly discussed.