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Updated: Aug 24, 2026
Systems Biology of Metabolic Regulation by Estrogen Receptor Signaling in Breast Cancer
Published on: March 17, 2016
Aromatase cytochrome P450 and estrogen and progesterone receptors in uterine sarcomas: correlation with clinical
Yui Kitaoka1, Jo Kitawaki, Hisato Koshiba
1Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan.
Abstract:
We examined the immunohistochemical expression of aromatase cytochrome P450 (P450arom), estrogen receptor (ER), progesterone receptor (PR), and Ki-67 in postoperative uterine sarcomas (n = 31) and the corresponding eutopic endometria (n = 20) to evaluate the relationships between the endocrine character of uterine sarcomas and the clinical features. In sarcoma tissues, P450arom was detected in 55% of cases, ER in 42%, PR in 42%, and Ki-67 in 90%. In eutopic endometria, P450arom was detected in 60% of cases, ER in 60%, and PR in 35%. There were correlations in the steroid-related proteins between the tumors and endometria (P = 0.001-0.026). The positivity of endometrial P450arom (P = 0.04) and ER (P = 0.006) was higher in surviving patients than dead patients regardless of the menstrual state. The results demonstrate correlation between the expression of P450arom, ER, and PR in tumors and eutopic endometria. Intense expression of the steroid-related proteins was associated with better survival.