LH(hCG) Receptor in Benign and Malignant Tumors of Human Ovary

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Abstract
LH(hCG) receptors were identified with [125I]hCG in 38 benign and 26 malignant ovarian tumors of the human ovary. Eighteen per cent of all the benign and 27% of all the malignant tumors were LH(hCG) receptor‐positive. Four of 12 benign serous tumors and 3 of 17 benign mucinous tumors displayed definitive binding of [125I]hCG. Two Brenner tumors failed to bind [125I]hCG. Six of 21 malignant epithelial tumors displayed definitive binding of [125I]hCG. Only one out of 4 malignant granulosa cell tumors bound [125I]hCG, while the other sex cord stromal tumors as well as one dysgerminoma failed to bind [125I]hCG. LH(hCG) receptor content in the benign and malignant receptor‐positive tumors was low compared with the normal ovarian tissue. The presence of LH(hCG) receptors in certain benign and malignant ovarian tumors may be a sign of the gonadotropic control of these tumors. The possible applications of these findings for the diagnosis and treatment of human ovarian tumors is discussed.

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