Cited by 1,038Regulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and Metabolism

Leptin reverses insulin resistance and diabetes mellitus in mice with congenital lipodystrophy

Shimomura, Iichiro, Hammer, Robert E., Ikemoto, Shinji, Brown, Michael S., Goldstein, Joseph L.·1999·Nature

Abstract

Congenital generalized lipodystrophy (CGL) is a rare autosomal recessive disorder characterized by a paucity of adipose (fat) tissue which is evident at birth and is accompanied by a severe resistance to insulin, leading to hyperinsulinaemia, hyperglycaemia and enlarged fatty liver. We have developed a mouse model that mimics these features of CGL: the syndrome occurs in transgenic mice expressing a truncated version of a nuclear protein known as nSREBP-1c (for sterol-regulatory-element-binding protein-1c) under the control of the adipose-specific aP2 enhancer. Adipose tissue from these mice was markedly deficient in messenger RNAs encoding several fat-specific proteins, including leptin, a fat-derived hormone that regulates food intake and energy metabolism. Here we show that insulin resistance in our lipodystrophic mice can be overcome by a continuous systemic infusion of low doses of recombinant leptin, an effect that is not mimicked by chronic food restriction. Our results support the idea that leptin modulates insulin sensitivity and glucose disposal independently of its effect on food intake, and that leptin deficiency accounts for the insulin resistance found in CGL.

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Crossref · 10.1038/43448

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  • Leptin treatment reversed insulin resistance in a fat-specific aP2-SREBP-1c knockout mouse model of congenital generalized lipodystrophy.

    “Shimomura et al. have demonstrated that leptin treatment reversed insulin resistance in a fat-specific aP2-SREBP-1c knockout mouse model of congenital generalized lipodystrophy (4).”
  • Taken together, the data suggest that the intrahepatic and intramyocellular lipid lowering effects of leptin were mediated mostly by a reduction in energy intake, as opposed to a leptin-induced increase in energy expenditure, although a lipolytic effect of leptin on these tissues cannot be ruled out.

    “Taken together, these data suggest that intrahepatic and intramyocellular lipid lowering effects of leptin were mediated mostly by a reduction in energy intake, as opposed to a leptininduced increase in energy expenditure, although a lipolytic effect of leptin on these tissues cannot be ruled out (4, 28).”
  • Leptin deficiency contributes to insulin resistance and diabetes in lipodystrophy.

    “Several lines of evidence from both humans and rodent models suggest that leptin deficiency contributes to insulin resistance and diabetes in this setting (139, 168, 169).”
  • The diabetes phenotype of lipodystrophic mice is ameliorated by leptin administration via a mechanism at least in part independent of food intake and body weight.

    “the diabetes phenotype of these lipodystrophic mice is also ameliorated by leptin administration via a mechanism that is, at least in part, independent of its effect on food intake and body weight (64, 168).”
  • Recombinant leptin administration could ameliorate dyslipidemia, insulin resistance, and diabetes in rodent models and preliminary short-term human studies.

    “First in rodent models (5) and then in preliminary short-term studies in humans (6), it was shown that recombinant leptin administration could ameliorate dyslipidemia, insulin resistance, and diabetes.”

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Authors
Shimomura, I., Hammer, R. E., Ikemoto, S., Brown, M. S., & Goldstein, J. L.
Affiliations
  • Howard Hughes Medical Institute (US)
  • The University of Texas Southwestern Medical Center (US)
Corresponding author
  • Brown, Michael S.
  • Goldstein, Joseph L.
Venue
Nature
Published
1999-09
Volume
401
Issue
6748
Pages
73-76
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1492605893
Cited by
1,038
References
15
Citations by year
2026: 5 · 2025: 7 · 2024: 22 · 2023: 24 · 2022: 19 · 2021: 20 · 2020: 20 · 2019: 23 · 2018: 31 · 2017: 29 · 2016: 30 · 2015: 38 · 2014: 36 · 2013: 39 · 2012: 43
FWCI
23.91
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (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 › Physiology › Adipose Tissue and Metabolism
Keywords
leptin, congenital generalized lipodystrophy, insulin resistance, diabetes mellitus, transgenic mouse model, adipose tissue, hyperinsulinemia, hyperglycemia, hepatic steatosis, glucose disposal, dietary restriction, energy metabolism
MeSH terms
Animals, Diabetes Mellitus, Experimental, Disease Models, Animal, DNA-Binding Proteins, Female, Food Deprivation, Humans, Insulin Resistance, Lipodystrophy, Liver, Male, Mice, Obese, Mice, Transgenic, Nuclear Proteins, Promoter Regions, Genetic, Proteins, Transcription Factors, Adipocytes, Leptin, CCAAT-Enhancer-Binding Proteins, Mice, Sterol Regulatory Element Binding Protein 1

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