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Molecular and cellular regulation of hypothalamic melanocortin neurons controlling food intake and energy metabolism

Molecular Psychiatry volume 19, pages 752–761 (2014)Cite this article

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Abstract

The brain receives and integrates environmental and metabolic information, transforms these signals into adequate neuronal circuit activities, and generates physiological behaviors to promote energy homeostasis. The responsible neuronal circuitries show lifetime plasticity and guaranty metabolic health and survival. However, this highly evolved organization has become challenged nowadays by chronic overload with nutrients and reduced physical activity, which results in an ever-increasing number of obese individuals worldwide. Research within the last two decades has aimed to decipher the responsible molecular and cellular mechanisms for regulation of the hypothalamic melanocortin neurons, which have a key role in the control of food intake and energy metabolism. This review maps the central connections of the melanocortin system and highlights its global position and divergent character in physiological and pathological metabolic events. Moreover, recently uncovered molecular and cellular processes in hypothalamic neurons and glial cells that drive plastic morphological and physiological changes in these cells, and account for regulation of food intake and energy metabolism, are brought into focus. Finally, potential functional interactions between metabolic disorders and psychiatric diseases are discussed.

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  1. Program in Integrative Cell Signaling and Neurobiology of Metabolism, Section of Comparative Medicine, Yale University School of Medicine, New Haven, CT, USA

    M Koch & T L Horvath

  2. Institute of Anatomy, University of Leipzig, Leipzig, Germany

    M Koch

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Koch, M., Horvath, T. Molecular and cellular regulation of hypothalamic melanocortin neurons controlling food intake and energy metabolism. Mol Psychiatry 19, 752–761 (2014). https://doi.org/10.1038/mp.2014.30

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  • Issue Date:

  • DOI: https://doi.org/10.1038/mp.2014.30

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