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Cells in multicellular organisms communicate extensively with neighboring cells and distant organs using a variety of secreted proteins and small molecules. Cells also reside in a structural extracellular matrix (ECM), and changes in its composition, mechanical properties, and post-translational modifications provide additional layers of communication. This Forum addresses emerging mechanisms by which redox signaling controls and is controlled by changes in the ECM, focusing on the roles of matricellular proteins. These proteins engage specific cell surface signaling receptors, integrins, and proteoglycans to regulate the biosynthesis and catabolism of redox signaling molecules and the activation of their signal transducers. These signaling pathways, in turn, regulate the composition of ECM and its function. Covalent post-translational modifications of ECM by redox molecules further regulate its structure and function. Recent studies of acute injuries and chronic disease have identified important pathophysiological roles for this cross-talk and new therapeutic opportunities. Antioxid. Redox Signal. 27, 771-773.


David D Roberts. Extracellular Matrix and Redox Signaling in Cellular Responses to Stress. Antioxidants & redox signaling. 2017 Oct 20;27(12):771-773

PMID: 28793792

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