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Journal Article

Charge-controlled synthetic hyaluronan-based cell matrices

MPS-Authors
/persons/resource/persons201488

Hegger,  Patricia
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany;

/persons/resource/persons191926

Baykal Minsky,  Burcu
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany;

/persons/resource/persons75304

Böhm,  Heike
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany;

External Resource

https://www.mdpi.com/1420-3049/23/4/769/pdf
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https://doi.org/10.3390/molecules23040769
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Citation

Hegger, P., Kupka, J., Baykal Minsky, B., Laschat, S., & Böhm, H. (2018). Charge-controlled synthetic hyaluronan-based cell matrices. Molecules, 23(4), 1-13. doi:10.3390/molecules23040769.


Cite as: https://hdl.handle.net/21.11116/0000-0002-1B56-0
Abstract
The extracellular matrix (ECM) represents a highly charged and hydrated network in which different cells in vertebrate tissues are embedded. Hydrogels as minimal ECM mimetics with a controlled chemistry offer the opportunity to vary material properties by varying the negative network charge. In this paper, a synthetic biology model of the ECM based on natural and highly negatively charged polyelectrolyte hyaluronic acid (HA) is characterized with specific emphasis on its charge-related bioactivity. Therefore, the thiol-Michael addition click reaction is used to produce HA hydrogels with defined network structure and charge density. The presented hydrogels show enzymatic degradability and cell attachment. These properties depend on both covalent and electrostatic interactions within the hydrogel network. Furthermore, no unspecific or specific attachment of proteins to the presented hydrogels is observed. In addition, these fundamental insights into charge-related ECM behavior and the influence of electrostatic properties could also lead to innovations in existing biomedical products.