A recombinant full length human glucocorticoid receptor stimulates transcription in vitro of test genes containing synthetic glucocorticoid and progesterone response elements or murine mammary tumor virus promoter. The receptor expressed in a baculoviral vector is highly active, enhancing transcription of hormone response genes greater than 30-fold even at a receptor concentration of 1.2 nM. Th...

BACKGROUND The fallopian tube transports the gametes to the fertilization site and delivers the embryo to the uterus at the optimal time for implantation. Progesterone and the classical progesterone receptor are involved in regulating both tubal ciliary beating and muscular contractions, likely via both genomic and non-genomic actions. METHODS To provide more details of the underlying mechani...

Background and Aims: This research aimed to study a possible link between endometriosis and polymorphism of the progesterone receptor gene. Materials and Methods: The control group consisted of 86 women without endometriosis and the case group comprised 86 patients with a diagnosis of endometriosis by laparoscopy. Genotypes for Alu insertion polymorphisms (A1/A1, A1/A2 and A2/A2) were descri...

In addition to stimulation of the target gene fatty-acid synthetase, the synthetic progestin R5020 strongly inhibited estradiol-induced pS2 and cathepsin D mRNA levels in MCF7 human breast cancer cells as shown by Northern blot analysis. Inhibition was half-maximal with 30 pM R5020, and the antiprogestin RU486 had only a weak effect. Two human progesterone receptor isoforms have been described;...

It is well established that estrogen is required for mammary epithelial cell proliferation and ductal development in the growing animal, and that lobuloalveolar development during gestation is dependent on progesterone. The effects of these steroid hormones on gene expression in the mammary gland are mediated primarily by their respective nuclear hormone receptors, which function as hormone-bou...

The unequivocal role of progesterone in a variety of events like ovulation, mammary gland development, establishment and maintenance of pregnancy etc are well established. Also the data are accumulating on its role in male reproductive events. In vertebrates and humans, the biological activity of progesterone is mediated by two progesterone receptor proteins PR-A and PR-B, that arise from the s...

Background: Human epidermal growth factor 2 (HER2) is known to be an important prognostic in breast cancer. Numerous studies have shown HER2+ cancers reduced overall survival and recovery time, as well the efficacy of anti-HER2 therapies along with chemotherapy improving disease outcomes. For this reason, it recommended that all patients cancer should evaluated for HER2 status. This study aimed...

Although pregnancy success rates are raised with assisted reproductive technology, it still cannot meet clinical demands. Kunling Pill (KLP), a traditional Chinese medicine, is widely used in various gynecological disorders, particularly improving fertility and rates. However, the underlying mechanism of how KLP affects outcomes remains unclear. This study aimed to explore effects mechanisms on...

One of the potential therapeutic interventions to hormone-independent breast cancer would be to reactivate the expression of estrogen receptor or progesterone receptor (PR) in the tumor cells so as to render the tumor responsive to the hormones. We have reported previously that progesterone markedly inhibited cell growth and induced remarkable focal adhesions in PR-transfected MDA-MB-231 cells....