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Differentiation and Imaging of Brown Adipocytes from the Stromal Vascular Fraction of Interscapular Adipose Tissue from Newborn Mice
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Inflammatory Signaling and Brown Fat Activity.

Farah Omran1, Mark Christian2

  • 1Warwick Medical School, University of Warwick, Coventry, United Kingdom.

Frontiers in Endocrinology
|April 9, 2020
PubMed
Summary

Brown adipose tissue (BAT) inflammation impacts its energy expenditure and glucose uptake, potentially contributing to obesity. Understanding these inflammatory signals is crucial for metabolic disease research.

Keywords:
beige adipocytebrown adipose tissue (BAT)cytokineinflammationwhite adipose tissue

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Area of Science:

  • Metabolic Physiology
  • Adipose Tissue Biology
  • Immunology

Background:

  • Obesity involves chronic inflammation in white adipose tissue (WAT), driven by inflammatory cytokines.
  • Brown adipose tissue (BAT) and brown/beige adipocytes are key for energy expenditure and protection against obesity.
  • The inflammatory status of BAT is less understood compared to WAT, but it plays a role in metabolic health.

Purpose of the Study:

  • To investigate the inflammatory status of brown adipose tissue (BAT) in physiological and pathophysiological contexts.
  • To explore how inflammation affects the thermogenic activity and function of brown fat.
  • To understand the role of pro-inflammatory signals in BAT dysfunction during obesity.

Main Methods:

  • Review of existing literature on adipose tissue inflammation and brown fat function.
  • Analysis of cytokine secretion by immune cells and brown adipocytes.
  • Examination of the impact of inflammatory microenvironments on BAT thermogenesis and glucose uptake.

Main Results:

  • Brown adipose tissue (BAT) is generally less prone to inflammation than white adipose tissue (WAT).
  • Inflammation can impair the energy expenditure and glucose uptake capacity of brown fat.
  • Both immune cells and brown adipocytes contribute to the inflammatory microenvironment.

Conclusions:

  • Pro-inflammatory signals are integral to the thermogenic potential of brown and beige adipocytes.
  • Inflammation can disrupt BAT function, potentially contributing to its dysfunction in obesity.
  • Further research into BAT inflammation is vital for understanding and treating metabolic diseases.