Mechanical regulation of mesenchymal stem cell differentiation

AJ Steward, DJ Kelly - Journal of anatomy, 2015 - Wiley Online Library
Journal of anatomy, 2015Wiley Online Library
Biophysical cues play a key role in directing the lineage commitment of mesenchymal stem
cells or multipotent stromal cells (MSC s), but the mechanotransductive mechanisms at play
are still not fully understood. This review article first describes the roles of both substrate
mechanics (eg stiffness and topography) and extrinsic mechanical cues (eg fluid flow,
compression, hydrostatic pressure, tension) on the differentiation of MSC s. A specific focus
is placed on the role of such factors in regulating the osteogenic, chondrogenic, myogenic …
Abstract
Biophysical cues play a key role in directing the lineage commitment of mesenchymal stem cells or multipotent stromal cells (MSCs), but the mechanotransductive mechanisms at play are still not fully understood. This review article first describes the roles of both substrate mechanics (e.g. stiffness and topography) and extrinsic mechanical cues (e.g. fluid flow, compression, hydrostatic pressure, tension) on the differentiation of MSCs. A specific focus is placed on the role of such factors in regulating the osteogenic, chondrogenic, myogenic and adipogenic differentiation of MSCs. Next, the article focuses on the cellular components, specifically integrins, ion channels, focal adhesions and the cytoskeleton, hypothesized to be involved in MSC mechanotransduction. This review aims to illustrate the strides that have been made in elucidating how MSCs sense and respond to their mechanical environment, and also to identify areas where further research is needed.
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