Ultraviolet B stimulates production of corticotropin releasing factor (CRF) by human melanocytes
نویسندگان
چکیده
منابع مشابه
The physiology of corticotropin-releasing factor (CRF).
Corticotropin-releasing factor (CRF) was characterized, purified and synthesized in 1981 by Vale. The composition of this 41 amino-acid peptide varies slightly from one species to another. Its principal origin is the paraventricular nucleus of the hypothalamus and, by the portal vessels, it reaches the adenohypophysis where it stimulates the corticotrophs. The effects of CRF have been analysed ...
متن کاملCorticotropin-releasing factor (CRF) system localization in human fetal heart.
OBJECTIVE The corticotropin-releasing factor (CRF) family consists of the neuropeptides CRF, Ucn I, II and III and the binding sites CRFR1, CRFR2 and CRF-BP. It regulates stress response and the homeostasis of an organism. In this study, we examined the presence of the CRF system in the human hearts of normal and pathological fetuses. DESIGN Heart tissues from 40 archival human fetuses were d...
متن کاملCorticotropin-Releasing Factor (CRF) Agonists Stimulate Testosterone Production in Mouse Leydig Cells through CRF Receptor-1.
The influence of CRF on testosterone production in primary mouse Leydig cell cultures was studied, and the type of CRF receptor (CRF-R) involved in this activity was determined. CRF directly stimulated testosterone production in mouse Leydig cells, but did not influence the maximum human (h)CG-induced testosterone production. The effect was time- and dose-dependent, saturable with an EC50 of 2....
متن کاملRole of corticotropin-releasing factor (CRF) receptors in the anorexic syndrome induced by CRF.
Genetic manipulations of corticotropin-releasing factor (CRF)(1) and CRF(2) receptors have resulted in data suggesting that the CRF(2) receptor could mediate the effects of CRF on appetite or satiety. We have attempted to obtain pharmacological evidence for this hypothesis by comparing the ability of a high-affinity peptide, mixed CRF antagonist [cyclo 30-33,f12,L18,21E30, A32,K33]sucker fish u...
متن کاملPromoter analysis of human corticotropin-releasing factor (CRF) type 1 receptor and regulation by CRF and urocortin.
We report the full genomic organization of the human gene for the corticotropin-releasing factor (CRF) receptor type 1 (CRFR1), with complete mapping of exons 1-14. The 5' flanking region (2.4 kb) of the gene encoding for human CRFR1 was isolated, sequenced, and characterized. Two major transcriptional start sites were determined at -265 and -238, relative to the ATG start site (+1). Transient ...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1996
ISSN: 0014-5793
DOI: 10.1016/s0014-5793(96)01315-4