MOLECULAR ENDOCRINOLOGY OF THE UTERUS

描述：（改编自申请人的描述）糖蛋白 已证明激素人绒毛膜促性腺激素（hCG）具有 直接影响子宫代谢。 hCG是一个家族成员， 二聚体激素，包括促黄体生成素（LH）、促卵泡生成素 激素（FSH）和促甲状腺激素（TSH），它们共享一个共同的α亚单位， 有独特的β亚基 研究者实验室的研究， 其他人认为hCG的α亚单位在 通过子宫肌层和蜕膜调节催乳素的产生。 然而，这种效应的机制尚不清楚，因为 单独的α-亚单位似乎没有通过已知的LH/hCG的作用， 受体的 此外，尽管已经假设在细胞上存在受体， 非性腺组织包括人子宫内膜和子宫肌层用于LH/hCG， 这些研究有很大的局限性， 他们的结论。 假设是一种独特的受体转导了 hCG和/或α-亚单位在人类子宫中的作用。 的目的 建议是使用分子生物学技术和 分子遗传学，这些激素的已知受体，并克隆一个 人类子宫中唯一的受体 这些研究将潜在地定义垂体/子宫的新水平 相互作用独立的性腺激素的影响。 它们也可能导致 更好地理解人类的分子内分泌学 子宫 这项建议的具体目标是： 1. 克隆人绒毛膜促性腺激素（hCG）和/或α亚单位的特异性受体， 子宫 2. 为了定量和确定这一生理表达， 独特 人子宫中的受体。 3. 从转录水平上识别基因 由配体的作用调节 人类子宫中的这种受体。

DESCRIPTION: (Adapted from applicant's description) The glycoprotein hormone human chorionic gonadotropin (hCG) has been demonstrated to have direct effects on uterine metabolism. hCG is a member of a family of dimeric hormones including luteinizing hormone (LH), follicle stimulating hormone (FSH) and thyrotropin (TSH), that share a common alpha subunit and have unique beta-subunits. Studies from the investigator's laboratory and others have suggested that the alpha-subunit of hCG has a role in the regulation of prolactin production by uterine myometrium and decidua. However, the mechanism of this effect is not understood because alpha-subunit alone appears to have no effect through the known LH/hCG receptor. Furthermore, although it has been hypothesized that there are receptors on non-gonadal tissues including human endometrium and myometrium for LH/hCG, these studies have significant limitations that compromise the power of their conclusions. The hypothesis is that a unique receptor transduces the actions of hCG and/or alpha-subunit in the human uterus. The aim of this proposal is to characterize, using the techniques of molecular biology and molecular genetics, the known receptors for these hormones and to clone a unique receptor in the human uterus. These studies will define potentially a new level of pituitary/uterine interaction independent of gonadal hormonal influences. They may also lead to a better understanding of the molecular endocrinology of the human uterus. The specific aims of this proposal are: 1. To clone a unique receptor for hCG and/or alpha-subunit in the human uterus. 2. To quantitate and determine physiologic expression for this unique receptor(s) in the human uterus. 3. To identify genes transcriptionally regulated by the action of the ligands for this receptor(s) in the human uterus.