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Type: Journal article
Title: Do adipose tissue macrophages promote insulin resistance or adipose tissue remodelling in humans?
Author: Heilbronn, L.
Liu, B.
Citation: Hormone Molecular Biology and Clinical Investigation, 2014; 20(1):3-13
Publisher: De Gruyter
Issue Date: 2014
ISSN: 1868-1883
Statement of
Leonie K. Heilbronn and Bo Liu
Abstract: In diet induced and genetically obese rodent models, adipose tissue is associated with macrophage infiltration, which promotes a low grade inflammatory state and the development of insulin resistance. In humans, obesity is also closely linked with macrophage infiltration in adipose tissue, a pro-inflammatory phenotype and insulin resistance. However, whether macrophage infiltration is a direct contributor to the development of insulin resistance that occurs in response to weight gain, or is a later consequence of the obese state is unclear. There are a number of concomitant changes that occur during adipose tissue expansion, including the number and size of adipocytes, the vasculature and the extracellular matrix. In this review, we will examine evidence for and against the role of macrophage recruitment into adipose tissue in promoting the development of insulin resistance in rodents and humans, as well as discuss the emerging role of macrophages in mediating healthy adipose tissue expansion during periods of caloric excess.
Keywords: Adipose tissue remodelling; inflammation; insulin resistance; macrophages; obesity
Rights: Copyright of Hormone Molecular Biology & Clinical Investigation is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use.
DOI: 10.1515/hmbci-2014-0036
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