Ovarian mucinous adenocarcinoma with functioning stroma in postmenopausal women: aromatase and SF-1 expressions
نویسندگان
چکیده
BACKGROUND A high serum estradiol (E2) level is occasionally detected in postmenopausal women with common epithelial ovarian tumors with functioning stroma. It has been proven that functioning stroma has the capacity to convert androgens to estrogens. However, the mechanism of the initiation and development of functioning stroma remains unclear. CASE PRESENTATION We present two cases of elevated E2 levels in elderly women with ovarian mucinous adenocarcinomas that contained functioning stroma. Immunohistochemical evaluation revealed high expression levels of aromatase and steroidogenic factor-1 (SF-1), which is considered to be a master regulator of steroidogenesis, in their ovarian stroma. CONCLUSIONS These cases suggest that overexpression of SF-1 may promote estrogen biosynthesis through regulation of P450 aromatase expression in ovarian tumors with functioning stroma; this in turn induces high serum E2 levels in postmenopausal women with common epithelial ovarian tumors.
منابع مشابه
بررسی اینهیبین به‌عنوان تومور مارکر در خانم‌های یائسه مبتلا به بدخیمی‌های تخمدان
Background: Inhibin is a dimeric glycoprotein that has a depressive effect on the anterior hypophys secretion. The level of this tumor marker is undetectable in menopause women. In patients with gynecological cancer, especially granulosa and epidermal-type (mucinous), ovarian cancers considerable increase in the serum level of inhibin has been reported. The increased level of inhibin has been r...
متن کاملP-207: Pharmacogenetic Study of CYP19A1 (Aromatase) in Ovarian Induction in Iranian Polycystic Ovarian Syndrome Patients
Background: Hyper-androgenemia is one of the main clinical features of polycystic ovarian syndrome (PCOS). Letrozol is an aromatase inhibitor drug, which is co-administered with gonadotropins in most cases of PCOS, to improve ovulation. Aromatase has a critical role in catalyzing the conversion of androgens to estrogens and is responsible for keeping the homeostatic balance between them. Hence ...
متن کاملتومور بوردرلاین موسینوس تخمدان هم‌زمان با آدنوکارسینومای سرویکس در یک بیمار: گزارش موردی
Background: Ovarian mucinous borderline tumors are divided into two morphologic groups: endocervical-like and intestinal type. Most endocervical adenocarcinomas exhibit mucinous and/or endometrioid differentiation, they infrequently metastasize to the ovaries but may simulate primary ovarian tumors (both atypical proliferative or borderline and carcinoma). In patients with mucinous adenocarcino...
متن کاملHuge mucinous cystic adenocarcinoma of the pancreas.
pected to be a mucinous cystic adenocarcinoma. We performed en bloc distal pancreatectomy and splenectomy. The macroscopic appearance was consistent with mucinous cystic neoplasm ( fig. 3 ). Microscopy showed epithelium composed of mucin-secreting cells and a dense cellular ovarian-type stroma ( fig. 4 ). Adenocarcinoma was A 41-year-old woman was referred to our hospital for evaluation of an a...
متن کاملGuidance for the management of breast cancer treatment-induced bone loss: a consensus position statement from a UK Expert Group.
In postmenopausal women, the use of aromatase inhibitors increases bone turnover and induces bone loss at sites rich in trabecular bone at an average rate of 1-3% per year leading to an increase in fracture incidence compared to that seen during tamoxifen use. The bone loss is much more marked in young women with treatment-induced ovarian suppression followed by aromatase inhibitor therapy (ave...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 8 شماره
صفحات -
تاریخ انتشار 2015