Cited by 1,014Regulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic DiseasesCytokine Signaling Pathways and Interactions

Identification of SOCS-3 as a Potential Mediator of Central Leptin Resistance

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Bjørbæk, Christian, Elmquist, Joel K, Frantz, J.Daniel, Shoelson, Steven E, Flier, Jeffrey S·1998·Molecular Cell

Abstract

Leptin affects food intake and body weight by actions on the hypothalamus. Although leptin resistance is common in obesity, mechanisms have not been identified. We examined the effect of leptin on expression of the suppressors-of-cytokine-signaling (SOCS) family of proteins. Peripheral leptin administration to ob/ob, but not db/db mice, rapidly induced SOCS-3 mRNA in hypothalamus, but had no effect on CIS, SOCS-1, or SOCS-2. A leptin-dependent increase of SOCS-3 mRNA was seen in areas of hypothalamus expressing high levels of the leptin receptor long form. In mammalian cell lines, SOCS-3, but not CIS or SOCS-2, blocked leptin-induced signal transduction. Expression of SOCS-3 mRNA in the arcuate and dorsomedial hypothalamic nuclei is increased in Ay/a mice, a model of leptin-resistant murine obesity. In conclusion, SOCS-3 is a leptin-inducible inhibitor of leptin signaling, and a potential mediator of leptin resistance in obesity.

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Crossref · 10.1016/s1097-2765(00)80062-3

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  • Cellular effects of leptin are amplified in cells lacking either SOCS3 or PT1b.

    “Consistent with this, the cellular effects of leptin have been amplified in cells lacking either SOCS3 or PT1b, a phosphotyrosine phosphatase.”

    From Leptin at 14 y of age: an ongoing story (2009) · cites this paper as [46]

  • Mice with haploinsufficiency for either SOCS3 or PT1b are resistant to obesity, remain lean on a high-fat diet, and retain leptin sensitivity.

    “Importantly, mice with haploinsufficiency for either of these genes are resistant to obesity, remain lean on a high-fat diet, and retain leptin sensitivity (46,47).”

    From Leptin at 14 y of age: an ongoing story (2009) · cites this paper as [46]

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Authors
Bjørbæk, C., Elmquist, J. K., Frantz, J. D., Shoelson, S. E., & Flier, J. S.
Affiliations
  • Beth Israel Deaconess Medical Center (US)
  • Joslin Diabetes Center (US)
Corresponding author
Flier, Jeffrey S
Venue
Molecular Cell
Publisher
Elsevier BV
Published
1998-03
Volume
1
Issue
4
Pages
619-625
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2041872947
Cited by
1,014
References
47
Citations by year
2026: 12 · 2025: 15 · 2024: 11 · 2023: 14 · 2022: 21 · 2021: 21 · 2020: 14 · 2019: 30 · 2018: 22 · 2017: 36 · 2016: 31 · 2015: 29 · 2014: 32 · 2013: 48 · 2012: 51
FWCI
21.14
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (1r29mh056537-01a1)
  • National Institute of Mental Health (MH-56537)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01 DK45943, R01DK045943, DK-R37-28082, R37DK028082)
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
leptin resistance, SOCS3, suppressor of cytokine signaling, hypothalamus, leptin signaling, obesity, leptin receptor, ob/ob mice, db/db mice, arcuate nucleus, dorsomedial hypothalamus, signal transduction inhibition
MeSH terms
Suppressor of Cytokine Signaling 3 Protein, Animals, DNA-Binding Proteins, Hypothalamus, Male, Mice, Inbred C57BL, Mice, Obese, Neurons, Obesity, Proteins, Recombinant Proteins, Repressor Proteins, RNA, Messenger, Transcription Factors, Signal Transduction, Trans-Activators, In Situ Hybridization, Immediate-Early Proteins, Genes, Reporter, COS Cells, Leptin, Suppressor of Cytokine Signaling Proteins, Mice

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