scholarly journals Cell density overrides the effect of substrate stiffness on human mesenchymal stem cells’ morphology and proliferation

2018 ◽  
Vol 6 (5) ◽  
pp. 1109-1119 ◽  
Author(s):  
Balu Venugopal ◽  
Pankaj Mogha ◽  
Jyotsna Dhawan ◽  
Abhijit Majumder

Cell–cell interactionviasubstrate deformation in turn modifies cellular response to substrate rigidity.

2007 ◽  
Vol 35 (2) ◽  
pp. 314-325 ◽  
Author(s):  
Wolfgang Wagner ◽  
Frederik Wein ◽  
Christoph Roderburg ◽  
Rainer Saffrich ◽  
Anne Faber ◽  
...  

2016 ◽  
Vol 42 ◽  
pp. 247-257 ◽  
Author(s):  
Huihua Yuan ◽  
Yaxian Zhou ◽  
Ming-Song Lee ◽  
Yanzhong Zhang ◽  
Wan-Ju Li

2017 ◽  
Vol 58 ◽  
pp. 244-253 ◽  
Author(s):  
Anowarul Islam ◽  
Thomas Mbimba ◽  
Mousa Younesi ◽  
Ozan Akkus

2013 ◽  
Vol 31 (9) ◽  
pp. 1360-1365 ◽  
Author(s):  
Ruyue Xue ◽  
Julie Yi-Shuan Li ◽  
Yiting Yeh ◽  
Li Yang ◽  
Shu Chien

Author(s):  
Mohammed Mohiuddin ◽  
Zong-Sheng Lai ◽  
Hsin-Chieh Lin

N-Cadherin is a transmembrane glycoprotein that plays a crucial role in the condensation of mesenchymal cells by enhancing cell-cell interactions during the process of chondrogenesis. The biophysical and biochemical signals...


2021 ◽  
Author(s):  
Sanjay Kumar Kureel ◽  
Shatarupa Sinha ◽  
Purboja Purkayastha ◽  
Sarah Barretto ◽  
Abhijit Majumder

The microenvironment of human mesenchymal stem cells (hMSCs) regulates their self-renewal and differentiation properties. Previously it was shown that hMSCs remained quiescent on soft (0.25 kPa) polyacrylamide (PA) gels but re-entered into cell cycle on a stiff (7.5 kPa) gel. However, how cells behave on intermediate stiffness and what intracellular factors transmit mechanical changes to cell interior thereby regulating cell cycle remained unknown. In this work we demonstrated that PA gels between 1 and 5 kPa act as a mechanical switch in regulating cell cycle of hMSCs. By experiments on cell-cycle exit and re-entry, we found that hMSCs demonstrated a sharp transition from quiescence to proliferation between 1 and 5 kPa. Further studies with ROCK inhibitor Y-27632 revealed that contractile proteins, but not cell spread area, accounts for the sensitivity of hMSCs towards substrate stiffness and hence correlates with their changes in cell cycle. These observations therefore suggest that substrate stiffness regulates hMSC proliferation through contractile forces as generated by cellular contractile proteins in a unique pattern which is distinct from other cell types as studied.


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