Cited by 924Regulation of Appetite and ObesityHypothalamic control of reproductive hormonesAdipokines, Inflammation, and Metabolic Diseases

Leptin Differentially Regulates NPY and POMC Neurons Projecting to the Lateral Hypothalamic Area

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Elias, Carol F, Aschkenasi, Carl, Lee, Charlotte, Kelly, Joseph, Ahima, Rexford S, Bjorbæk, Christian, Flier, Jeffrey S, Saper, Clifford B +1 more·1999·Neuron

Abstract

Recent studies have reinforced the view that the lateral hypothalamic area (LHA) regulates food intake and body weight. We identified leptin-sensitive neurons in the arcuate nucleus of the hypothalamus (Arc) that innervate the LHA using retrograde tracing with leptin administration. We found that retrogradely labeled cells in the Arc contained neuropeptide Y (NPY) mRNA or proopiomelanocortin (POMC) mRNA. Following leptin administration, NPY cells in the Arc did not express Fos but expressed suppressor of cytokine signaling-3 (SOCS-3) mRNA. In contrast, leptin induced both Fos and SOCS-3 expression in POMC neurons, many of which also innervated the LHA. These findings suggest that leptin directly and differentially engages NPY and POMC neurons that project to the LHA, linking circulating leptin and neurons that regulate feeding behavior and body weight homeostasis.

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Crossref · 10.1016/s0896-6273(01)80035-0

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Authors
Elias, C. F., Aschkenasi, C., Lee, C., Kelly, J., Ahima, R. S., Bjorbæk, C., Flier, J. S., Saper, C. B., & Elmquist, J. K.
Affiliations
Beth Israel Deaconess Medical Center (US)
Corresponding author
Elmquist, Joel K
Venue
Neuron
Publisher
Elsevier BV
Published
1999-08
Volume
23
Issue
4
Pages
775-786
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2012496594
Cited by
924
References
79
Citations by year
2026: 9 · 2025: 12 · 2024: 17 · 2023: 13 · 2022: 25 · 2021: 30 · 2020: 32 · 2019: 38 · 2018: 49 · 2017: 45 · 2016: 32 · 2015: 41 · 2014: 40 · 2013: 47 · 2012: 33
FWCI
11.36
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (1r29mh056537-01a1)
  • National Institute of Mental Health (MH-56537, MH44694, R01MH044694)
  • National Institute of Neurological Disorders and Stroke (NS 33987, R01NS033987)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
leptin, neuropeptide Y, proopiomelanocortin, lateral hypothalamus, arcuate nucleus, hypothalamic neurons, retrograde tracing, SOCS3, Fos expression, feeding behavior, body weight homeostasis, neuropeptide signaling
MeSH terms
Suppressor of Cytokine Signaling 3 Protein, Animals, Arcuate Nucleus of Hypothalamus, Body Weight, Cell Count, Eating, Homeostasis, Hypothalamic Area, Lateral, Immunohistochemistry, Male, Neural Pathways, Neurons, Neuropeptide Y, Pro-Opiomelanocortin, Proteins, Repressor Proteins, RNA, Messenger, Transcription Factors, Protein Biosynthesis, Signal Transduction, Proto-Oncogene Proteins c-fos, Rats, Sprague-Dawley, In Situ Hybridization, Leptin, Suppressor of Cytokine Signaling Proteins, Rats

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