Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/ijms23063389
Keywords
extracellular vesicles; exosomes; microvesicles; extracellular matrix; mesenchymal stem cells; wound healing; tissue repair; matrix-bound vesicles
Funding
- Australian Commonwealth Government Research Training Program Tuition Fee Offset
- University of Sydney
- Australian Research Council
- Dust Diseases Board competitive grant
- National Health and Medical Research Council [APP1195827]
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The discovery of extracellular vesicles (EVs) carrying regulatory proteins, nucleic acids, and lipids has provided insights into how cells communicate and function. The bioactivity of EVs depends on their contents and surface molecules, and their interaction with the extracellular matrix (ECM) plays a role in tissue maintenance and repair. EVs can modulate matrix deposition and degradation, and contribute to tissue repair and regeneration.
The discovery that cells secrete extracellular vesicles (EVs), which carry a variety of regulatory proteins, nucleic acids, and lipids, has shed light on the sophisticated manner by which cells can communicate and accordingly function. The bioactivity of EVs is not only defined by their internal content, but also through their surface associated molecules, and the linked downstream signaling effects they elicit in target cells. The extracellular matrix (ECM) contains signaling and structural molecules that are central to tissue maintenance and repair. Recently, a subset of EVs residing within the extracellular matrix has been identified. Although some roles have been proposed for matrix-bound vesicles, their role as signaling molecules within the ECM is yet to be explored. Given the close association of EVs and the ECM, it is not surprising that EVs partly mediate repair and regeneration by modulating matrix deposition and degradation through their cellular targets. This review addresses unique EV features that allow them to interact with and navigate through the ECM, describes how their release and content is influenced by the ECM, and emphasizes the emerging role of stem-cell derived EVs in tissue repair and regeneration through their matrix-modulating properties.
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