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Updated: Jun 20, 2026

Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis

Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis

Published on: June 3, 2016

Cellular hypoxia and adipose tissue dysfunction in obesity.

I Stuart Wood¹, Fátima Pérez de Heredia, Bohan Wang

¹Obesity Biology Research Unit, School of Clinical Sciences, University of Liverpool, Duncan Building, Liverpool L69 3GA, UK. i.s.wood@liverpool.ac.uk

The Proceedings of the Nutrition Society

|August 25, 2009

Summary

Cellular hypoxia, or low oxygen, in adipose tissue is a key driver of obesity-related inflammation. This condition promotes the release of inflammatory adipokines and contributes to metabolic dysfunction.

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Isolation and Culturing of Primary Murine Adipocytes from Lean and Obese Mice

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Area of Science:

Adipose tissue biology
Obesity research
Cellular metabolism

Background:

Obesity is characterized by adipose tissue expansion and low-grade inflammation.
Adipose tissue secretes inflammatory adipokines implicated in insulin resistance and metabolic syndrome.
The link between increased adiposity and inflammation remains unclear.

Purpose of the Study:

To investigate the role of cellular hypoxia in adipose tissue dysfunction and inflammation associated with obesity.
To explore the impact of hypoxia on adipokine production and cellular metabolism.

Main Methods:

Studies utilized animal models (mutant mice, diet-induced obesity) and cell-culture systems (mouse and human adipocytes).
Investigated the effects of low oxygen tension on adipokine production, glucose transport, and preadipocyte differentiation.

Main Results:

Hypoxia in adipose tissue modulates the production of inflammation-related adipokines, increasing IL-6, leptin, and macrophage migratory inhibition factor, while decreasing adiponectin.
Low oxygen tension increases glucose transport into adipocytes via GLUT-1 up-regulation.
Hypoxia induces inflammatory responses in macrophages and inhibits preadipocyte differentiation.

Conclusions:

Cellular hypoxia is a significant factor in adipocyte physiology and adipose tissue dysfunction.
Hypoxia contributes to the adverse metabolic milieu associated with obesity, driving inflammation and metabolic disturbances.