Journal
EXPERT OPINION ON THERAPEUTIC TARGETS
Volume 7, Issue 4, Pages 495-511Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1517/14728222.7.4.495
Keywords
alpha-MSH; antagonist; anxiety; depression; diabetes; energy regulation; food intake; melanin-concentrating hormone (MCH); MCH receptors; nervous system; obesity; stress
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Melanin-concentrating hormone (MCH) is a cyclic neuropeptide, which centrally regulates food intake and stress. MCH induces food intake in rodents and, more generally, acts as an anabolic signal in energy regulation. In addition, MCH seems to be activatory on the stress axis. Two receptors for MCH in humans have very recently been characterised, namely, MCH-R1 and MCH-R2. MCH-R1 has received considerable attention, as potent and selective antagonists acting at that receptor display anxiolytic, antidepressant and/or anorectic properties. Feeding and affective disorders are both debilitating conditions that have become serious worldwide health threats. There are as yet no efficient and/or safe cures that could contain the near-pandemia phenomen of both diseases. Thus, the discovery of MCH-R1 antagonists may lead to the development of valuable drugs to treat obesity, anxiety and depressive syndromes. In addition, it opens wide avenues to probe additional functions of the peptide, both in the brain and in the peripheral nervous system.
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