Cell-Matrix Interactions

Within native tissues cells reside in the extracellular matrix (ECM). The ECM represents a complex 3D environment that stores numerous biophysical and biochemical signals. Cell-ECM interactions modulate cell fate (adhesion, proliferation, differentiation, migration) and play a crucial role in tissue mechanotransduction and development. Here we aim to generate mechanistic understandings of cell-matrix interactions in engineered 3D matrices and then apply this knowledge to generate functional bone tissues in vitro for both basic and translational research. To this end, we build artifical ECM hydrogels with fine-tuned physicochemical properties to investigate how various matrix factors affect cell fate independently and how these interactions contribute to in vitro bone formation.  

Cell-matrix Interactions
Image credit: Adam Alexander Korczak

Related student projects:

  • Monica Brodersen
  • Adam Alexander Korczak
  • Doris Zauchner
  • Margherita Bernero
  • Muriel Holzreuter 

Acknowledgements:

This project has received funding from the ETH Zurich Career SEED Award (2019-2020) and the SNSF Spark Award (2020-2021).

Related publications: 

1.     Xiao-Hua Qin, Xiaopu Wang, Markus Rottmar, Bradley J. Nelson, Katharina Maniura-Weber. external pageNear-Infrared Light-Sensitive Polyvinyl Alcohol Hydrogel Photoresist for Spatiotemporal Control of Cell-Instructive 3D Microenvironments. Adv. Mater. 2018, vol. 30, pp. 1705564.

2.     Jan Torgersen, Xiao-Hua Qin, Zhiquan Li, Aleksandr Ovsianikov, Robert Liska, Jürgen Stampfl. external pageHydrogels for Two-Photon Polymerization: A Toolbox for Mimicking the Extracellular Matrix. Adv. Funct. Mater. 2013, vol. 23: pp. 4542-4554..

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