Cited by 490Regulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic DiseasesCytokine Signaling Pathways and Interactions

Enhanced leptin sensitivity and attenuation of diet-induced obesity in mice with haploinsufficiency of Socs3

Howard, Jane K, Cave, Belinda J, Oksanen, Laura J, Tzameli, Iphigenia, Bjørbæk, Christian, Flier, Jeffrey S·2004·Nature Medicine

Abstract

Leptin is an adipocyte-derived hormone that regulates energy balance and neuroendocrine function primarily by acting on specific hypothalamic pathways. Resistance to the weight reducing effects of leptin is a feature of most cases of human and rodent obesity, yet the molecular basis of leptin resistance is poorly understood. We have previously identified suppressor of cytokine signaling-3 (Socs3) as a leptin-induced negative regulator of leptin receptor signaling and potential mediator of leptin resistance. However, due to the non-viability of mice with targeted disruption of Socs3 (ref. 6), the importance of Socs3 in leptin action in vivo was unclear. To determine the functional significance of Socs3 in energy balance in vivo we undertook studies in mice with heterozygous Socs3 deficiency (Socs3(+/-)). We report here that Socs3(+/-) mice display greater leptin sensitivity than wild-type control mice: Socs3(+/-) mice show both enhanced weight loss and increased hypothalamic leptin receptor signaling in response to exogenous leptin administration. Furthermore, Socs3(+/-) mice are significantly protected against the development of diet-induced obesity and associated metabolic complications. The level of Socs3 expression is thus a critical determinant of leptin sensitivity and obesity susceptibility in vivo and this molecule is a potential target for therapeutic intervention.

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Crossref · 10.1038/nm1072

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Authors
Howard, J. K., Cave, B. J., Oksanen, L. J., Tzameli, I., Bjørbæk, C., & Flier, J. S.
Affiliations
Beth Israel Deaconess Medical Center (US)
Corresponding author
Flier, Jeffrey S
Venue
Nature Medicine
Published
2004-06-27
Volume
10
Issue
7
Pages
734-738
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2024734221
Cited by
490
References
30
Citations by year
2026: 5 · 2025: 9 · 2024: 10 · 2023: 9 · 2022: 7 · 2021: 16 · 2020: 9 · 2019: 13 · 2018: 12 · 2017: 19 · 2016: 23 · 2015: 21 · 2014: 21 · 2013: 31 · 2012: 39
FWCI
15.46
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
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 › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
SOCS3, leptin resistance, leptin sensitivity, diet-induced obesity, energy balance, obesity susceptibility, metabolic complications
MeSH terms
Suppressor of Cytokine Signaling 3 Protein, Animals, Blood Glucose, Energy Intake, Dietary Fats, Energy Metabolism, Mice, Inbred C57BL, Obesity, Receptors, Cell Surface, Repressor Proteins, Transcription Factors, Leptin, Suppressor of Cytokine Signaling Proteins, Mice, Receptors, Leptin

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