» Articles » PMID: 25108614

Interplay of Matrix Stiffness and Protein Tethering in Stem Cell Differentiation

Overview
Journal Nat Mater
Date 2014 Aug 11
PMID 25108614
Citations 370
Authors
Affiliations
Soon will be listed here.
Abstract

Stem cells regulate their fate by binding to, and contracting against, the extracellular matrix. Recently, it has been proposed that in addition to matrix stiffness and ligand type, the degree of coupling of fibrous protein to the surface of the underlying substrate, that is, tethering and matrix porosity, also regulates stem cell differentiation. By modulating substrate porosity without altering stiffness in polyacrylamide gels, we show that varying substrate porosity did not significantly change protein tethering, substrate deformations, or the osteogenic and adipogenic differentiation of human adipose-derived stromal cells and marrow-derived mesenchymal stromal cells. Varying protein-substrate linker density up to 50-fold changed tethering, but did not affect osteogenesis, adipogenesis, surface-protein unfolding or underlying substrate deformations. Differentiation was also unaffected by the absence of protein tethering. Our findings imply that the stiffness of planar matrices regulates stem cell differentiation independently of protein tethering and porosity.

Citing Articles

Anisotropic structure of nanofiber hydrogel accelerates diabetic wound healing via triadic synergy of immune-angiogenic-neurogenic microenvironments.

Kim K, Yang J, Li C, Yang C, Hu P, Liu Y Bioact Mater. 2025; 47:64-82.

PMID: 39877154 PMC: 11772153. DOI: 10.1016/j.bioactmat.2025.01.004.


Predicting the Mechanical Properties of Supramolecular Gels.

Simpson J, Thomson L, Woodley C, Wallace C, Dietrich B, Loch A Adv Mater. 2025; 37(8):e2415031.

PMID: 39780688 PMC: 11854865. DOI: 10.1002/adma.202415031.


A deformable SIS/HA composite hydrogel coaxial scaffold promotes alveolar bone regeneration after tooth extraction.

Ma S, Li Y, Yao S, Shang Y, Li R, Ling L Bioact Mater. 2025; 46:97-117.

PMID: 39760069 PMC: 11697370. DOI: 10.1016/j.bioactmat.2024.12.008.


Manipulation of Surface Potential Distribution Enhances Osteogenesis by Promoting Pro-Angiogenic Macrophage Polarization via Activation of the PI3K-Akt Signaling Pathway.

Cui Q, Zheng X, Bai Y, Guo Y, Liu S, Lu Y Adv Sci (Weinh). 2024; 12(8):e2414278.

PMID: 39739591 PMC: 11848552. DOI: 10.1002/advs.202414278.


Matrix stiffness drives drop like nuclear deformation and lamin A/C tension-dependent YAP nuclear localization.

Wang T, Abolghasemzade S, McKee B, Singh I, Pendyala K, Mohajeri M Nat Commun. 2024; 15(1):10151.

PMID: 39578439 PMC: 11584751. DOI: 10.1038/s41467-024-54577-4.


References
1.
Bangasser B, Rosenfeld S, Odde D . Determinants of maximal force transmission in a motor-clutch model of cell traction in a compliant microenvironment. Biophys J. 2013; 105(3):581-92. PMC: 3736748. DOI: 10.1016/j.bpj.2013.06.027. View

2.
Khatiwala C, Peyton S, Metzke M, Putnam A . The regulation of osteogenesis by ECM rigidity in MC3T3-E1 cells requires MAPK activation. J Cell Physiol. 2007; 211(3):661-72. DOI: 10.1002/jcp.20974. View

3.
Rowlands A, George P, Cooper-White J . Directing osteogenic and myogenic differentiation of MSCs: interplay of stiffness and adhesive ligand presentation. Am J Physiol Cell Physiol. 2008; 295(4):C1037-44. DOI: 10.1152/ajpcell.67.2008. View

4.
Choi Y, Vincent L, Lee A, Kretchmer K, Chirasatitsin S, Dobke M . The alignment and fusion assembly of adipose-derived stem cells on mechanically patterned matrices. Biomaterials. 2012; 33(29):6943-51. PMC: 3408879. DOI: 10.1016/j.biomaterials.2012.06.057. View

5.
Dupont S, Morsut L, Aragona M, Enzo E, Giulitti S, Cordenonsi M . Role of YAP/TAZ in mechanotransduction. Nature. 2011; 474(7350):179-83. DOI: 10.1038/nature10137. View