人的正常卵巢及巢癌绒毛膜促性腺激素受体的研究

Comparative study on human chorionic gonadotropin receptor in normal human ovary with ovarian tumors

Human Chorionic Gonadotropin (HCG) is major physiological luteotropic factors for the human corpus luteum. The observations strongly suggest that the human ovary possesses a gonadotropin receptor in the cell membrane. We studied the HCG receptor in normal human ovary and ovarian tumors. Twenty-three human ovarian specimens and 16 ovarian tumor specimens were obtained from women patients having gynecological surgery. Ovaries were homogenized and sonicated. The homogenates were centrifuged at 2000 g for 15 min. After sucrose density gradient ultracentrifugation (78,000 g, 4 h), two fractions were collected from layer of 33% and interface between 33% and 37%. Thirty micrograms of ovarian protein, 8 ng 125I-HCG and unlabeled HCG in a final volume of 0.5 ml of 0.05 mol/L Tris buffer were incubated at 30 degrees C for 2 h. The results were shown in the table.