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| Status |
Public on May 18, 2015 |
| Title |
IL-37 protects against obesity-induced inflammation and insulin resistance |
| Organism |
Mus musculus |
| Experiment type |
Expression profiling by array
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| Summary |
Cytokines of the IL-1 family are important modulators of obesity-induced inflammation and the development of systemic insulin resistance. Here, we report that IL-37, a newly-described antiinflammatory member of the IL-1 family, affects obesity-induced inflammation and insulin resistance. IL-37 transgenic mice (IL-37tg) did not develop an obese phenotype in response to a high-fat diet (HFD). Unlike WT mice, IL-37tg mice exhibited reduced numbers of adipose tissue macrophages and preserved glucose tolerance and insulin sensitivity after 16 weeks of HFD. A short-term HFD intervention revealed that the IL-37-mediated improvement in glucose tolerance is independent of bodyweight. IL-37tg mice manifested a beneficial metabolic profile with higher circulating levels of the anti-inflammatory adipokine adiponectin. In vitro treatment of differentiating adipocytes with recombinant IL-37 reduced adipogenesis. The beneficial effects of recombinant IL-37 involved activation of AMPK signaling. In humans, steady-state IL-37 adipose tissue mRNA levels were positively correlated with insulin sensitivity, lower adipose tissue levels of leptin and a lower inflammatory status of the adipose tissue. These findings reveal IL-37 as an important anti-inflammatory modulator during obesity-induced inflammation and insulin resistance in both mice and humans and suggest that IL-37 is a potential target for the treatment of obesity-induced insulin resistance and type 2 diabetes.
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| Overall design |
Gene arrays were performed on epidydimal white adipose tissue samples from wild type and human IL37-overexpressing transgenic mice fed a high fat diet for 16 weeks.
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| Contributor(s) |
Ballak DB, van Diepen JA, Boekschoten MV, Müller M, Kersten S, Stienstra R |
| Citation(s) |
25182023 |
| Submission date |
Jun 30, 2014 |
| Last update date |
Apr 18, 2017 |
| Contact name |
Guido Hooiveld |
| E-mail(s) |
guido.hooiveld@wur.nl
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| Organization name |
Wageningen University
|
| Department |
Div. Human Nutrition & Health
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| Lab |
Nutrition, Metabolism & Genomics Group
|
| Street address |
HELIX, Stippeneng 4
|
| City |
Wageningen |
| ZIP/Postal code |
NL-6708WE |
| Country |
Netherlands |
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| Platforms (1) |
| GPL11533 |
[MoGene-1_1-st] Affymetrix Mouse Gene 1.1 ST Array [transcript (gene) version] |
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| Samples (8)
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| Relations |
| BioProject |
PRJNA253964 |
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