Cited by 167Regulation of Appetite and ObesityAdipokines, Inflammation, and Metabolic DiseasesNeuroinflammation and Neurodegeneration Mechanisms

Hypothalamic innate immune reaction in obesity

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Kälin, Stefanie, Heppner, Frank L., Bechmann, Ingo, Prinz, Marco, Tschöp, Matthias H., Yi, Chun-Xia·2015·Nature Reviews Endocrinology

Abstract

Findings from rodent and human studies show that the presence of inflammatory factors is positively correlated with obesity and the metabolic syndrome. Obesity-associated inflammatory responses take place not only in the periphery but also in the brain. The hypothalamus contains a range of resident glial cells including microglia, macrophages and astrocytes, which are embedded in highly heterogenic groups of neurons that control metabolic homeostasis. This complex neural-glia network can receive information directly from blood-borne factors, positioning it as a metabolic sensor. Following hypercaloric challenge, mediobasal hypothalamic microglia and astrocytes enter a reactive state, which persists during diet-induced obesity. In established mouse models of diet-induced obesity, the hypothalamic vasculature displays angiogenic alterations. Moreover, proopiomelanocortin neurons, which regulate food intake and energy expenditure, are impaired in the arcuate nucleus, where there is an increase in local inflammatory signals. The sum total of these events is a hypothalamic innate immune reactivity, which includes temporal and spatial changes to each cell population. Although the exact role of each participant of the neural-glial-vascular network is still under exploration, therapeutic targets for treating obesity should probably be linked to individual cell types and their specific signalling pathways to address each dysfunction with cell-selective compounds.

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Crossref · 10.1038/nrendo.2015.48

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Authors
Kälin, S., Heppner, F. L., Bechmann, I., Prinz, M., Tschöp, M. H., & Yi, C.-X.
Affiliations
  • Helmholtz Munich (DE)
  • Charité – Universitätsmedizin Berlin (DE)
  • Leipzig University (DE)
  • University of Freiburg (DE)
  • Amsterdam UMC Location University of Amsterdam (NL)
Corresponding author
Tschöp, Matthias H.
Venue
Nature Reviews Endocrinology
Published
2015-03-31
Volume
11
Issue
6
Pages
339-351
ISSN
  • 1759-5029 (ISSN-L)
  • 1759-5037
OpenAlex
W2085158900
Cited by
167
References
146
Citations by year
2026: 7 · 2025: 10 · 2024: 12 · 2023: 11 · 2022: 16 · 2021: 13 · 2020: 16 · 2019: 16 · 2018: 18 · 2017: 28 · 2016: 15 · 2015: 5
FWCI
2.39
Type
journal article
Language
en
Open access
Locations
  • Nature Reviews Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • FreiDok plus (Universitätsbibliothek Freiburg) (submittedVersion)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
  • Site cant be reached (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion, other-oa)
  • PuSH - Publication Server of Helmholtz Zentrum München (submittedVersion)
Funders
  • Alexander von Humboldt-Stiftung
  • Deutsche Forschungsgemeinschaft (SFB 1052, NeuroCure EXC257, EXC257, HE 3130/6‐1)
  • Bundesministerium für Bildung und Forschung
  • Berlin Institute of Health
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
obesity, hypothalamus, innate immunity, neuroinflammation, microglia, astrocytes, macrophages, proopiomelanocortin neurons, arcuate nucleus, diet-induced obesity, metabolic syndrome, angiogenesis, food intake regulation, energy expenditure, therapeutic target
MeSH terms
Animals, Arcuate Nucleus of Hypothalamus, Astrocytes, Eating, Energy Metabolism, Humans, Hypothalamus, Immunity, Innate, Macrophages, Neuroglia, Neurons, Obesity, Tumor Necrosis Factor-alpha, NF-kappa B, Microglia, Mice, I-kappa B Kinase

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