Estrogen is known to increase progesterone receptor (PR) levels in the wild-type mouse
uterus, and this estrogen induction was thought to be important for progesterone action …

The distribution of the progesterone receptor (PR) was investigated immunocytochemically
in female reproductive tracts of rats during the estrous cycle and early pregnancy through …

In situ photoaffinity labeling, which minimizes in vitro incubations and proteolytic artifacts,
was used to study the structure of progesterone receptors (PR) in intact T47D human breast …

The progesterone receptor (PR) gene is regulated by estrogen in normal reproductive
tissues and in MCF-7 human breast cancer cells. Although it is generally thought that …

Five monoclonal antibodies were used for the immunocytochemical study of mammalian
progesterone receptor (PR). Initial studies were aimed at defining the optimal experimental …

The human progesterone receptor (PR) is expressed as two isoforms, PRA and PRB, which
differ in the N-terminal region and exhibit different activities in vitro, with PRA demonstrating …

The endometrium is the site of implantation and pregnancy. Preparation for this important
biological event relies primarily on progesterone, which takes the estrogen-primed …

The two forms of the progesterone receptor, PR-A and PR-B, are independently regulated at
the transcriptional level, and show distinct responses to progesterone antagonists. We were …

Human progesterone receptors (PR) are thought to comprise two naturally occurring
hormone-binding proteins: 94-kDa A-receptors and 120-kDa B-receptors. In this paper we …

Progesterone plays a key role in the development, differentiation and maintenance of female
reproductive tissues and has multiple non-reproductive neural functions. Depending on the …