Extracellular matrix remodelling in obesity and metabolic disorders

  • Vishal Musale 1 ,
  • David H. Wasserman 2 ,
  • Li Kang , 1
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  • 1. Division of Systems Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, United Kingdom
  • 2. Department of Molecular Physiology and Biophysics, Mouse Metabolic Phenotyping Center, Vanderbilt University, Nashville, TN 37235, United States
l.kang@dundee.ac.uk

Received date: 11 Feb 2023

Revised date: 07 May 2023

Accepted date: 17 May 2023

Copyright

2023 The Author(s) 2023. Published by Oxford University Press on behalf of Higher Education Press.

Abstract

Obesity causes extracellular matrix (ECM) remodelling which can develop into serious pathology and fibrosis, having metabolic effects in insulin-sensitive tissues. The ECM components may be increased in response to overnutrition. This review will focus on specific obesity-associated molecular and pathophysiological mechanisms of ECM remodelling and the impact of specific interactions on tissue metabolism. In obesity, a complex network of signalling molecules such as cytokines and growth factors has been implicated in fibrosis. Increased ECM deposition contributes to the pathogenesis of insulin resistance at least in part through the activation of cell surface integrin receptors and CD44 signalling cascades. These cell surface receptors transmit signals to the cell adhesome which orchestrates an intracellular response that adapts to the extracellular environment. Matrix proteins, glycoproteins, and poly-saccharides interact through ligand-specific cell surface receptors that interact with the cytosolic adhesion proteins to elicit specific actions. Cell adhesion proteins may have catalytic activity or serve as scaffolds. The vast number of cell surface receptors and the complexity of the cell adhesome have made study of their roles challenging in health and disease. Further complicating the role of ECM-cell receptor interactions is the variation between cell types. This review will focus on recent insights gained from studies of two highly conserved, ubiquitous axes and how they contribute to insulin resistance and metabolic dysfunction in obesity. These are the collagen-integrin receptor-IPP (ILK-PINCH-Parvin) axis and the hyaluronan-CD44 interaction. We speculate that targeting ECM components or their receptor-mediated cell signalling may provide novel insights into the treatment of obesity-associated cardiometabolic complications.

Cite this article

Vishal Musale , David H. Wasserman , Li Kang . Extracellular matrix remodelling in obesity and metabolic disorders[J]. Life Metabolism, 2023 , 2(4) : 155 -169 . DOI: 10.1093/lifemeta/load021

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