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Bone and cartilage differentiation of a single stem cell population driven by material interface.

  • Donnelly H Centre for Cell Engineering, University of Glasgow, Glasgow, UK.
  • Smith CA Centre for Cell Engineering, University of Glasgow, Glasgow, UK.
  • Sweeten PE Centre for Cell Engineering, University of Glasgow, Glasgow, UK.
  • Gadegaard N Division of Biomedical Engineering, University of Glasgow, Glasgow, UK.
  • Meek RD Department of Orthopaedics, Southern General Hospital, Glasgow, UK.
  • D'Este M AO Research Institute Davos, Davos, Switzerland.
  • Mata A Institute of Bioengineering, Queen Mary University of London, London, UK.
  • Eglin D AO Research Institute Davos, Davos, Switzerland.
  • Dalby MJ Centre for Cell Engineering, University of Glasgow, Glasgow, UK.
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  • 2017-06-02
Published in:
  • Journal of tissue engineering. - 2017
Nanotopography
complex tissue engineering
endochondral tissue engineering
hydrogel
mesenchymal stem cells
English Adult stem cells, such as mesenchymal stem cells, are a multipotent cell source able to differentiate towards multiple cell types. While used widely in tissue engineering and biomaterials research, they present inherent donor variability and functionalities. In addition, their potential to form multiple tissues is rarely exploited. Here, we combine an osteogenic nanotopography and a chondrogenic hyaluronan hydrogel with the hypothesis that we can make a complex tissue from a single multipotent cell source with the exemplar of creating a three-dimensional bone-cartilage boundary environment. Marrow stromal cells were seeded onto the topographical surface and the temperature gelling hydrogel laid on top. Cells that remained on the nanotopography spread and formed osteoblast-like cells, while those that were seeded into or migrated into the gel remained rounded and expressed chondrogenic markers. This novel, simple interfacial environment provides a platform for anisotropic differentiation of cells from a single source, which could ultimately be exploited to sort osteogenic and chondrogenic progenitor cells from a marrow stromal cell population and to develop a tissue engineered interface.
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  • English
Open access status
gold
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https://sonar.ch/global/documents/128963
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