What question did this study set out to answer?

To develop a matrix metalloproteinase-sensitive linker system within poly(ethylene glycol) hydrogels that releases immobilized growth factors on cellular demand, independently of bulk hydrogel degradation.

August 22, 2016Macromolecular Bioscience

Cell-Mediated Proteolytic Release of Growth Factors from Poly(Ethylene Glycol) Matrices

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Authors

SMStéphanie MetzgerUniversity Hospital of Zurich UBUlrich BlacheInnovation Cluster (Canada)PLPhilipp S. LienemannUniversity Hospital of Zurich

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Implication

In vitro study demonstrates enhanced osteogenic differentiation via cell-triggered growth factor release from hydrogels, highlighting new avenues for regenerative medicine.

Key Points

To develop a matrix metalloproteinase-sensitive linker system within poly(ethylene glycol) hydrogels that releases immobilized growth factors on cellular demand, independently of bulk hydrogel degradation.
Engineered a matrix metalloproteinase (MMP)-cleavable, streptavidin-based linker incorporated into poly(ethylene glycol) hydrogels to anchor biotinylated bioactive molecules.
Tested proof of concept by immobilizing biotinylated bone morphogenetic protein-2 (BMP-2) and evaluating osteogenic differentiation in C2C12 cells and mesenchymal stem cells relative to soluble and statically bound BMP-2 controls.
The MMP-sensitive streptavidin linker demonstrated successful, stable binding of biotinylated biomolecules within synthetic hydrogel networks.
Proteolytically releasable BMP-2 generated a significantly greater net osteogenic differentiation response in target cells compared with both permanently immobilized and soluble BMP-2 delivery modes.

Cite This Study

Metzger et al. (2016) studied this question.

synapsesocial.com/papers/6a9c1ccdec411410e50e472c https://doi.org/10.1002/mabi.201600223

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Implication

In vitro study demonstrates enhanced osteogenic differentiation via cell-triggered growth factor release from hydrogels, highlighting new avenues for regenerative medicine.

Cell-Mediated Proteolytic Release of Growth Factors from Poly(Ethylene Glycol) Matrices

Discussion

Member takes

Implication

Key Points

Cite This Study

Cell-Mediated Proteolytic Release of Growth Factors from Poly(Ethylene Glycol) Matrices

Discussion

Member takes

Implication

Key Points

Cite This Study

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