Prolactin role in the bovine uterus during adenomyosis
| Autor: | B.M. Socha, A.A. Szczepańska, Anna Korzekwa, M. Łupicka |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
endocrine system medicine.medical_specialty Stromal cell Receptors Prolactin Uterus Cattle Diseases Gene Expression Biology Real-Time Polymerase Chain Reaction 03 medical and health sciences 0302 clinical medicine Endocrinology Food Animals Internal medicine medicine Animals Adenomyosis RNA Messenger Receptor Cells Cultured Messenger RNA 030219 obstetrics & reproductive medicine Estradiol Myometrium Epithelial Cells medicine.disease Prolactin Blot 030104 developmental biology medicine.anatomical_structure Animal Science and Zoology Cattle Female Stromal Cells hormones hormone substitutes and hormone antagonists |
| Zdroj: | Domestic animal endocrinology. 58 |
| ISSN: | 1879-0054 |
| Popis: | Adenomyosis is uterine dysfunction defined as the presence of endometrial glands within the myometrium. It is suggested that adenomyosis is estrogen-dependent pathology, and prolactin (PRL) also affects its development. In the uterus of ruminants, PRL stimulates gland proliferation and function. We hypothesized that in the bovine uterus, the expression of PRL and its receptors (PRLRs) during adenomyosis is disturbed and modulated by estradiol (E2). Uterine tissues were collected postmortem from cows; epithelial, stromal, and myometrial cells were isolated; and cultured and treated with E2. Material was divided into 2 groups: control (nonadenomyotic) and uteri with adenomyosis. In adenomyotic uterine tissue, PRL and its long-form receptor protein were increased, as determined by Western blotting. Immunohistostaining showed that during adenomyosis, PRL and its receptors are highly expressed in adenomyotic lesions. In cultured myometrial cells, protein expression of PRL and its receptors was increased during adenomyosis. Estradiol decreased PRLRs protein expression in nonadenomyotic stromal cells and in adenomyotic myometrial cells, and increased PRL secretion by adenomyotic myometrial cells. Moreover, PRL secretion was increased in untreated epithelial and stromal cells during adenomyosis. On the other hand, in stromal cells, PRLRs messenger RNA and protein expression was decreased, as determined by real-time PCR and Western blotting, respectively. Obtained results show that significant changes in PRL and PRLRs expression are observed in uterine tissue and cells during adenomyosis, which were also affected by E2. These data suggest involvement of PRL in adenomyosis development and the link between PRL and E2 actions during the dysfunction in cows. |
| Databáze: | OpenAIRE |
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