Changes In Adipose Tissue Cellular Composition During Obesity And Aging As A Cause Of Metabolic Dysregulation

Abstract

Adipose tissue represents complex endocrine organ containing several different cellular populations including adipocytes, pre-adipocytes, mesenchymal stem cells, macrophages and lymphocytes. It is well establishing that these populations are not static but alter during obesity and aging. Changes in cellular populations alter inflammatory status and other common metabolic complications arise, therefore adipose tissue cellular composition helps dictate its endocrine and regulatory function. During excessive weight gain in obese individuals and as we age there is shift towards increase populations of inflammatory macrophages with a decrease of regulatory T cell. This altered cellular composition promote chronic low grade inflammation negatively affecting mesenchymal stem cell progenitor self-renewal, which result in deterioration of adipogenesis and increased cellular stress in adipocytes. All these changes promote metabolic disorders including age- or obese-related insulin resistance leading to type 2 diabetes.

Publication Date

8-1-2017

Publication Title

Experimental Gerontology

Volume

94

Number of Pages

59-63

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.exger.2016.12.007

Socpus ID

85007566253 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85007566253

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