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Urocortins in human reproduction
Pasquale Florio1, Wylie Vale, Felice Petraglia
1Department of Pediatrics, Obstetrics and Reproductive Medicine, University of Siena, Siena, Italy.
Peptides
|October 13, 2004
Summary
Urocortins are involved in human reproduction, acting locally in reproductive tissues like the placenta and uterus. These neuropeptides influence pregnancy and childbirth through paracrine/autocrine signaling.
Area of Science:
- Reproductive biology
- Endocrinology
- Neuropeptide research
Background:
- Corticotropin-releasing factor (CRF) related neuropeptides, known as urocortins, are being investigated for their roles in human reproduction.
- Previous research on CRF's biological effects and localization prompted the study of urocortins in reproductive tissues.
Purpose of the Study:
- To investigate the expression and function of urocortins in various human reproductive tissues.
- To determine the potential paracrine/autocrine actions of urocortins in reproductive physiology.
Main Methods:
- Analysis of urocortin expression and binding sites in human ovary, endometrium, placenta, fetal membranes, myometrium, and prostate.
- In vitro studies using cultured placental cells and myometrial strips to assess urocortin 1 effects.
Main Results:
- Urocortins and their binding sites are present in key human reproductive organs, including the placenta and myometrium.
- Urocortin 1 stimulates secretion of ACTH, prostaglandins, and activin A from placental cells and regulates placental blood flow.
- Urocortins induce uterine contractility in myometrial strips via specific intracellular pathways.
Conclusions:
- Urocortins play a significant role in the physiology of human reproduction.
- Findings suggest urocortins are crucial for the processes of pregnancy and parturition.