Cited by 75Regulation of Appetite and ObesityNeuropeptides and Animal PhysiologyHypothalamic control of reproductive hormones

Hypothalamic proopiomelanocortin (POMC) neurons have a cholinergic phenotype

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Meister, Björn, Gömüç, Burçak, Suarez, Elisabet, Ishii, Yuko, Dürr, Katrin, Gillberg, Linda·2006·European Journal of Neuroscience

Abstract

Neuronal networks originating in the hypothalamic arcuate nucleus play fundamental roles in the control of energy balance. Neuropeptide Y (NPY)-producing neurons in the arcuate nucleus stimulate food intake, whereas arcuate nucleus neurons that release the proopiomelanocortin (POMC)-derived peptide alpha-melanocyte-stimulating hormone (alpha-MSH) potently reduce food intake. Relatively little attention has been focused on classical neurotransmitters in regulation of food intake. Here, we have investigated the potential presence of acetylcholine (ACh) in NPY- and POMC-containing neuronal populations of the arcuate nucleus. Antisera to proteins required for cholinergic neurotransmission, including choline acetyltransferase (ChAT) and the vesicular acetylcholine transporter (VAChT), were employed in double-labeling immunohistochemical experiments. In colchicine-treated rats, ChAT- and VAChT-immunopositive cell bodies were located in the ventral aspect of the arcuate nucleus. ChAT and VAChT immunoreactivities were demonstrated in alpha-MSH- and cocaine- and amphetamine-regulated transcript (CART)-containing cell bodies of the arcuate nucleus, whereas cell bodies containing NPY or agouti-related peptide (AGRP) were distinct from VAChT-immunoreactive neuronal perikarya. VAChT immunoreactivity was also present in a large number of alpha-MSH-containing nerve fiber varicosities throughout the central nervous system. In the commissural part of the nucleus tractus solitarius, no alpha-MSH-containing cell bodies were found to have ChAT or VAChT immunoreactivity. The presence of markers for cholinergic neurotransmission in a subpopulation of hypothalamic POMC/CART neurons suggests co-release of ACh with peptides derived from the POMC precursor and CART. The results indicate a role for ACh in control of energy balance, mediating the effects of peripheral hormones such as leptin and insulin.

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Crossref · 10.1111/j.1460-9568.2006.05157.x

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Authors
Meister, B., Gömüç, B., Suarez, E., Ishii, Y., Dürr, K., & Gillberg, L.
Affiliations
Karolinska Institutet (SE)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2006-11
Volume
24
Issue
10
Pages
2731-2740
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2155819491
Cited by
75
References
56
Citations by year
2026: 3 · 2025: 1 · 2024: 1 · 2023: 4 · 2022: 4 · 2021: 1 · 2020: 2 · 2019: 4 · 2018: 3 · 2017: 7 · 2016: 4 · 2015: 5 · 2014: 5 · 2013: 6 · 2012: 5
FWCI
1.54
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • European Commission
  • Knut och Alice Wallenbergs Stiftelse
  • Novo Nordisk
  • Vetenskapsrådet (72X-10358)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
proopiomelanocortin neurons, hypothalamic arcuate nucleus, cholinergic neurotransmission, acetylcholine, choline acetyltransferase, vesicular acetylcholine transporter, alpha-melanocyte-stimulating hormone, cocaine- and amphetamine-regulated transcript, neuropeptide Y, agouti-related protein, food intake regulation, energy balance, leptin, insulin, nucleus tractus solitarius
MeSH terms
Cocaine- and Amphetamine-Regulated Transcript Protein, Acetylcholine, Animals, Choline O-Acetyltransferase, Hypothalamus, Immunohistochemistry, Male, Nerve Tissue Proteins, Neurons, Neuropeptide Y, Phenotype, Pro-Opiomelanocortin, Rats, Sprague-Dawley, In Situ Hybridization, Microscopy, Confocal, Vesicular Acetylcholine Transport Proteins, Rats

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