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Updated: Jul 7, 2026
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Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
Published on: September 7, 2013
The melanin-concentrating hormone system and its physiological functions
Yumiko Saito1, Hiroshi Nagasaki
1Graduate School of Integrated Arts and Sciences, Hiroshima University, Hiroshima, Japan. yumist@hiroshima-u.ac.jp
Results and Problems in Cell Differentiation
|January 30, 2008
Summary
Melanin-concentrating hormone (MCH) regulates feeding behavior and energy balance via its receptor MCH1R in mammals. MCH signaling also impacts emotion and stress, opening new research avenues.
Area of Science:
- Neuroendocrinology
- Molecular Biology
- Physiology
Background:
- Melanin-concentrating hormone (MCH) is a neuropeptide found in mammalian neurons, particularly in feeding-related brain regions.
- MCH exerts its functions by binding to two G protein-coupled receptors: MCH1R and MCH2R.
Purpose of the Study:
- To explore the physiological roles of MCH signaling in mammals.
- To investigate the involvement of MCH1R in feeding behavior and energy homeostasis.
- To examine potential roles of MCH beyond feeding regulation.
Main Methods:
- Genetic studies in rodents to assess MCH1R function.
- Pharmacological studies using MCH receptor antagonists.
- Analysis of MCH expression in key brain regions.
Main Results:
- Rodent MCH1R is confirmed to regulate feeding behavior and energy balance.
- Evidence suggests MCH signaling is involved in emotion and stress regulation.
- Deorphanization of MCH receptors has spurred further physiological investigations.
Conclusions:
- MCH signaling, primarily through MCH1R, plays a crucial role in mammalian feeding and energy balance.
- MCH's influence extends to emotional and stress responses, indicating broader physiological functions.
- The study of MCH receptors provides a model for exploring deorphanized receptors in physiology.
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