A neural basis for melanocortin-4 receptor-regulated appetite

Alastair S. Garfield, Chia Li, Joseph C. Madara, Bhavik P. Shah, Emily Webber, Jennifer S. Steger, John N. Campbell, Oksana Gavrilova, Charlotte E. Lee, David P. Olson, Joel K. Elmquist, Bakhos A. Tannous, Michael J. Krashes, Bradford B. Lowell

Research output: Contribution to journalArticle

151 Citations (Scopus)

Abstract

Pro-opiomelanocortin (POMC)- and agouti-related peptide (AgRP)-expressing neurons of the arcuate nucleus of the hypothalamus (ARC) are oppositely regulated by caloric depletion and coordinately stimulate and inhibit homeostatic satiety, respectively. This bimodality is principally underscored by the antagonistic actions of these ligands at downstream melanocortin-4 receptors (MC4R) in the paraventricular nucleus of the hypothalamus (PVH). Although this population is critical to energy balance, the underlying neural circuitry remains unknown. Using mice expressing Cre recombinase in MC4R neurons, we demonstrate bidirectional control of feeding following real-time activation and inhibition of PVH MC4R neurons and further identify these cells as a functional exponent of ARC AgRP neuron-driven hunger. Moreover, we reveal this function to be mediated by a PVH MC4R â †'lateral parabrachial nucleus (LPBN) pathway. Activation of this circuit encodes positive valence, but only in calorically depleted mice. Thus, the satiating and appetitive nature of PVH MC4R â †'LPBN neurons supports the principles of drive reduction and highlights this circuit as a promising target for antiobesity drug development.

Original languageEnglish (US)
Pages (from-to)863-871
Number of pages9
JournalNature Neuroscience
Volume18
Issue number6
DOIs
StatePublished - Jun 28 2015

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Receptor, Melanocortin, Type 4
Appetite
Paraventricular Hypothalamic Nucleus
Hypothalamus
Neurons
AIDS-Related Complex
Anti-Obesity Agents
Pro-Opiomelanocortin
Arcuate Nucleus of Hypothalamus
Peptides
Hunger
Ligands
Population

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Garfield, A. S., Li, C., Madara, J. C., Shah, B. P., Webber, E., Steger, J. S., ... Lowell, B. B. (2015). A neural basis for melanocortin-4 receptor-regulated appetite. Nature Neuroscience, 18(6), 863-871. https://doi.org/10.1038/nn.4011

A neural basis for melanocortin-4 receptor-regulated appetite. / Garfield, Alastair S.; Li, Chia; Madara, Joseph C.; Shah, Bhavik P.; Webber, Emily; Steger, Jennifer S.; Campbell, John N.; Gavrilova, Oksana; Lee, Charlotte E.; Olson, David P.; Elmquist, Joel K.; Tannous, Bakhos A.; Krashes, Michael J.; Lowell, Bradford B.

In: Nature Neuroscience, Vol. 18, No. 6, 28.06.2015, p. 863-871.

Research output: Contribution to journalArticle

Garfield, AS, Li, C, Madara, JC, Shah, BP, Webber, E, Steger, JS, Campbell, JN, Gavrilova, O, Lee, CE, Olson, DP, Elmquist, JK, Tannous, BA, Krashes, MJ & Lowell, BB 2015, 'A neural basis for melanocortin-4 receptor-regulated appetite', Nature Neuroscience, vol. 18, no. 6, pp. 863-871. https://doi.org/10.1038/nn.4011
Garfield AS, Li C, Madara JC, Shah BP, Webber E, Steger JS et al. A neural basis for melanocortin-4 receptor-regulated appetite. Nature Neuroscience. 2015 Jun 28;18(6):863-871. https://doi.org/10.1038/nn.4011
Garfield, Alastair S. ; Li, Chia ; Madara, Joseph C. ; Shah, Bhavik P. ; Webber, Emily ; Steger, Jennifer S. ; Campbell, John N. ; Gavrilova, Oksana ; Lee, Charlotte E. ; Olson, David P. ; Elmquist, Joel K. ; Tannous, Bakhos A. ; Krashes, Michael J. ; Lowell, Bradford B. / A neural basis for melanocortin-4 receptor-regulated appetite. In: Nature Neuroscience. 2015 ; Vol. 18, No. 6. pp. 863-871.
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