Mechanics regulates fate decisions of human embryonic stem cells

Research on human embryonic stem cells (hESCs) has attracted much attention given their great potential for tissue regenerative therapy and fundamental developmental biology studies. Yet, there is still limited understanding of how mechanical signals in the local cellular microenvironment of hESCs r...

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Veröffentlicht in:PloS one 2012-05, Vol.7 (5), p.e37178-e37178
Hauptverfasser: Sun, Yubing, Villa-Diaz, Luis G, Lam, Raymond H W, Chen, Weiqiang, Krebsbach, Paul H, Fu, Jianping
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container_issue 5
container_start_page e37178
container_title PloS one
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creator Sun, Yubing
Villa-Diaz, Luis G
Lam, Raymond H W
Chen, Weiqiang
Krebsbach, Paul H
Fu, Jianping
description Research on human embryonic stem cells (hESCs) has attracted much attention given their great potential for tissue regenerative therapy and fundamental developmental biology studies. Yet, there is still limited understanding of how mechanical signals in the local cellular microenvironment of hESCs regulate their fate decisions. Here, we applied a microfabricated micromechanical platform to investigate the mechanoresponsive behaviors of hESCs. We demonstrated that hESCs are mechanosensitive, and they could increase their cytoskeleton contractility with matrix rigidity. Furthermore, rigid substrates supported maintenance of pluripotency of hESCs. Matrix mechanics-mediated cytoskeleton contractility might be functionally correlated with E-cadherin expressions in cell-cell contacts and thus involved in fate decisions of hESCs. Our results highlighted the important functional link between matrix rigidity, cellular mechanics, and pluripotency of hESCs and provided a novel approach to characterize and understand mechanotransduction and its involvement in hESC function.
doi_str_mv 10.1371/journal.pone.0037178
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subjects Biology
Biomechanics
Biomedical engineering
Cadherins - biosynthesis
Cell Communication
Cell Differentiation - physiology
Contractility
Cytoskeleton
Cytoskeleton - physiology
Decisions
Developmental biology
Dimethylpolysiloxanes
E-cadherin
Embryo cells
Embryonic stem cells
Embryonic Stem Cells - drug effects
Embryonic Stem Cells - physiology
Embryos
Heterocyclic Compounds, 4 or More Rings - pharmacology
Humans
Insulin-like growth factors
Kinases
Laboratories
Materials Science
Mechanical engineering
Mechanical stimuli
Mechanics (physics)
Mechanotransduction
Mechanotransduction, Cellular - physiology
Motility
Nylons
Octamer Transcription Factor-3 - biosynthesis
Pluripotency
Pluripotent Stem Cells - physiology
Polymers
Rigidity
Rodents
Stem cell research
Stem cells
Studies
Substrates
title Mechanics regulates fate decisions of human embryonic stem cells
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