Cited by 2,356Regulation of Appetite and ObesityHypothalamic control of reproductive hormonesNeuropeptides and Animal Physiology

Leptin activates anorexigenic POMC neurons through a neural network in the arcuate nucleus

Open access
Cowley, Michael A., Smart, James L., Rubinstein, Marcelo, Cerdán, Marcelo G., Diano, Sabrina, Horvath, Tamas L., Cone, Roger D., Low, Malcolm J.·2001·Nature

Abstract

The administration of leptin to leptin-deficient humans, and the analogous Lepob/Lepob mice, effectively reduces hyperphagia and obesity. But common obesity is associated with elevated leptin, which suggests that obese humans are resistant to this adipocyte hormone. In addition to regulating long-term energy balance, leptin also rapidly affects neuronal activity. Proopiomelanocortin (POMC) and neuropeptide-Y types of neurons in the arcuate nucleus of the hypothalamus are both principal sites of leptin receptor expression and the source of potent neuropeptide modulators, melanocortins and neuropeptide Y, which exert opposing effects on feeding and metabolism. These neurons are therefore ideal for characterizing leptin action and the mechanism of leptin resistance; however, their diffuse distribution makes them difficult to study. Here we report electrophysiological recordings on POMC neurons, which we identified by targeted expression of green fluorescent protein in transgenic mice. Leptin increases the frequency of action potentials in the anorexigenic POMC neurons by two mechanisms: depolarization through a nonspecific cation channel; and reduced inhibition by local orexigenic neuropeptide-Y/GABA (gamma-aminobutyric acid) neurons. Furthermore, we show that melanocortin peptides have an autoinhibitory effect on this circuit. On the basis of our results, we propose an integrated model of leptin action and neuronal architecture in the arcuate nucleus of the hypothalamus.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/35078085

Cites

30 of 30 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Leptin rapidly changes the membrane potential and firing rate of hypothalamic neurons in electrophysiological studies.

    “in electrophysiological studies using freshly prepared hypothalamic slices, leptin rapidly changes the membrane potential and firing rate of neurons (42, 176)”
  • Leptin inhibits the firing rate of NPY/AgRP neurons, depolarizes POMC neurons, and activates PI3K signaling in POMC cells.

    “leptin inhibits the firing rate of NPY/AgRP neurons (189), while simultaneously depolarizing POMC neurons (42), and also activates PI3K signaling in the latter cells (204).”
  • POMC neurons are depolarized by leptin, leading to release of α-MSH, which mediates anorexigenic effects through activation of melanocortin receptors.

    “POMC neurons are depolarized by leptin, leading to release of α-melanocyte stimulating hormone (α-MSH), a POMC-derived neuropeptide that mediates its anorexigenic effects through activation of melanocortin receptors (Cone, 2005; Cowley et al., 2001; Schwartz et al., 2000).”

    From Leptin-Dependent Control of Glucose Balance and Locomotor Activity by POMC Neurons (2009) · cites this paper as Cowley et al., 2001

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Cowley, M. A., Smart, J. L., Rubinstein, M., Cerdán, M. G., Diano, S., Horvath, T. L., Cone, R. D., & Low, M. J.
Affiliations
  • Oregon Health & Science University (US)
  • Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
Corresponding author
Cone, Roger D.
Venue
Nature
Published
2001-05
Volume
411
Issue
6836
Pages
480-484
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1506453366
Cited by
2,356
References
30
Citations by year
2026: 44 · 2025: 67 · 2024: 96 · 2023: 90 · 2022: 79 · 2021: 82 · 2020: 105 · 2019: 84 · 2018: 121 · 2017: 104 · 2016: 123 · 2015: 117 · 2014: 93 · 2013: 107 · 2012: 125
FWCI
30.52
Type
journal article
Language
en
Open access
Licence
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-sa)
  • Digital Commons - George Fox University (George Fox University) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Americanae (AECID Library) (submittedVersion, cc-by-nc-sa)
Funders
National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
leptin, proopiomelanocortin neurons, arcuate nucleus, hypothalamus, leptin resistance, neuropeptide Y neurons, GABAergic inhibition, neuronal networks, food intake regulation, obesity, hyperphagia, energy balance
MeSH terms
Action Potentials, Animals, Anorexia, Arcuate Nucleus of Hypothalamus, Electrophysiology, Evoked Potentials, gamma-Aminobutyric Acid, Luminescent Proteins, Male, Mice, Inbred C57BL, Nerve Net, Neural Inhibition, Neurons, Neuropeptide Y, Pro-Opiomelanocortin, Leptin, Animals, Genetically Modified, Green Fluorescent Proteins, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review