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2016 ; 20
(ä): 11
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Biomimetic substrate control of cellular mechanotransduction
#MMPMID27134756
Andalib MN
; Dzenis Y
; Donahue HJ
; Lim JY
Biomater Res
2016[]; 20
(ä): 11
PMID27134756
show ga
Extracellular mechanophysical signals from both static substrate cue and dynamic
mechanical loading have strong potential to regulate cell functions. Most of the
studies have adopted either static or dynamic cue and shown that each cue can
regulate cell adhesion, spreading, migration, proliferation, lineage commitment,
and differentiation. However, there is limited information on the integrative
control of cell functions by the static and dynamic mechanophysical signals. For
example, a majority of dynamic loading studies have tested mechanical stimulation
of cells utilizing cultures on flat surfaces without any surface modification.
While these approaches have provided significant information on cell
mechanotransduction, obtained outcomes may not correctly recapitulate complex
cellular mechanosensing milieus in vivo. Several pioneering studies documented
cellular response to mechanical stimulations upon cultures with biomimetic
substrate modifications. In this min-review, we will highlight key findings on
the integrative role of substrate cue (topographic, geometric, etc.) and
mechanical stimulation (stretch, fluid shear) in modulating cell function and
fate. The integrative approaches, though not fully established yet, will help
properly understand cell mechanotransduction under biomimetic mechanophysical
environments. This may further lead to advanced functional tissue engineering and
regenerative medicine protocols.