Cited by 139Regulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and Metabolism

LRb-STAT3 Signaling Is Required for the Neuroendocrine Regulation of Energy Expenditure by Leptin

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Bates, Sarah H., Dundon, Trevor A., Seifert, Matthew, Carlson, Michael, Maratos-Flier, Eleftheria, Myers, Martin G.·2004·Diabetes

Abstract

Secretion of leptin from adipose tissue communicates body energy status to the neuroendocrine system by activating the long form of the leptin receptor (LRb). Lack of leptin or LRb (as in db/db mice) results in obesity that stems from the combined effects of hyperphagia and decreased energy expenditure. We have previously generated mice in which LRb is replaced with a mutant LRb (LRbS1138) that specifically disrupts LRb→STAT3 (signal transducer and activator of transcription-3) signaling; mice homozygous for this mutant (s/s) display increased feeding and are obese. We have now examined energy expenditure in s/s and db/db mice. Consistent with the increased lean body mass of s/s animals, locomotor activity and acute cold tolerance (partly a measure of shivering thermogenesis) in s/s mice were modestly but significantly improved compared with db/db mice, although they were decreased compared with wild-type mice. Total and resting metabolic rates were similarly depressed in s/s and db/db mice, however. Indeed, s/s and db/db mice display similar reductions in thyroid function and brown adipose tissue expression of uncoupling protein-1, which is regulated by sympathetic nervous system (SNS) tone. Thus, the LRb→STAT3 signal is central to both the control of energy expenditure by leptin and the neuroendocrine regulation of the SNS and the thyroid axis.

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Crossref · 10.2337/diabetes.53.12.3067

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  • Mice with LepRb Tyr1138 replaced by serine (s/s) are unable to recruit STAT3 and are characterized by hyperphagia, obesity, and reduced energy expenditure.

    “Mice bearing a mutant LepRb gene in which Tyr1138 is replaced by a serine residue (s/s mice) are unable to recruit STAT3 and are characterized by hyperphagia, obesity (14) and reduced energy expenditure (12)”
  • The Tyr1138→STAT3 pathway plays a crucial role in the regulation of energy homeostasis.

    “suggesting that the Tyr1138 →STAT3 pathway plays a crucial role in the regulation of regulation of energy homeostasis (12, 14).”

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Authors
Bates, S. H., Dundon, T. A., Seifert, M., Carlson, M., Maratos-Flier, E., & Myers, M. G.
Affiliations
  • Joslin Diabetes Center (US)
  • Research Division, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts
Venue
Diabetes
Published
2004-12-01
Volume
53
Issue
12
Pages
3067-3073
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2167683697
Cited by
139
References
44
Citations by year
2025: 2 · 2024: 3 · 2023: 1 · 2021: 2 · 2020: 4 · 2019: 1 · 2018: 7 · 2017: 8 · 2016: 2 · 2015: 7 · 2014: 10 · 2013: 8 · 2012: 8
FWCI
3.02
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Diabetes Association
  • National Institutes of Health (1r01dk053978-01)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK56731, DK-53978, DK 57768, R01DK057768)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
leptin receptor, STAT3 signaling, energy expenditure, leptin, obesity, db/db mice, locomotor activity, cold tolerance, shivering thermogenesis, resting metabolic rate, thyroid function, brown adipose tissue, UCP1, sympathetic nervous system, neuroendocrine regulation, hyperphagia
MeSH terms
Uncoupling Protein 1, Animals, Basal Metabolism, Body Composition, Body Temperature Regulation, Body Weight, Calorimetry, Indirect, Carrier Proteins, Diabetes Mellitus, Type 2, DNA-Binding Proteins, Energy Metabolism, Ion Channels, Male, Membrane Proteins, Motor Activity, Receptors, Cell Surface, Thyroxine, Signal Transduction, Trans-Activators, Mutagenesis, Leptin, Mitochondrial Proteins, STAT3 Transcription Factor, Mice, Receptors, Leptin

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