Cited by 660Regulation of Appetite and ObesityNeurotransmitter Receptor Influence on BehaviorHypothalamic control of reproductive hormones

Sensory Detection of Food Rapidly Modulates Arcuate Feeding Circuits

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Chen, Yiming, Lin, Yen-Chu, Kuo, Tzu-Wei, Knight, Zachary A.·2015·Cell

Abstract

Hunger is controlled by specialized neural circuits that translate homeostatic needs into motivated behaviors. These circuits are under chronic control by circulating signals of nutritional state, but their rapid dynamics on the timescale of behavior remain unknown. Here, we report optical recording of the natural activity of two key cell types that control food intake, AgRP and POMC neurons, in awake behaving mice. We find unexpectedly that the sensory detection of food is sufficient to rapidly reverse the activation state of these neurons induced by energy deficit. This rapid regulation is cell-type specific, modulated by food palatability and nutritional state, and occurs before any food is consumed. These data reveal that AgRP and POMC neurons receive real-time information about the availability of food in the external world, suggesting a primary role for these neurons in controlling appetitive behaviors such as foraging that promote the discovery of food.

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Crossref · 10.1016/j.cell.2015.01.033

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Authors
Chen, Y., Lin, Y.-C., Kuo, T.-W., & Knight, Z. A.
Affiliations
University of California, San Francisco (US)
Corresponding author
Knight, Zachary A.
Venue
Cell
Publisher
Elsevier BV
Published
2015-02
Volume
160
Issue
5
Pages
829-841
ISSN
0092-8674 (ISSN-L)
OpenAlex
W1971359921
Cited by
660
References
36
Citations by year
2026: 43 · 2025: 84 · 2024: 57 · 2023: 48 · 2022: 62 · 2021: 76 · 2020: 52 · 2019: 65 · 2018: 54 · 2017: 53 · 2016: 47 · 2015: 19
FWCI
31.97
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (R00DK083531, U01DK089541, P30DK063720)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
food intake regulation, AgRP neurons, POMC neurons, arcuate nucleus, hunger, palatability, negative energy balance, appetitive behavior, foraging, neural circuits, nutritional status, awake behaving mice
MeSH terms
Animals, Appetitive Behavior, Eating, Feeding Behavior, Hunger, Hypothalamus, Neural Pathways, Neurons, Photometry, Pro-Opiomelanocortin, Mice, Agouti-Related Protein

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