Witte, K. , de Andrés, M. C., Wells, J., Dalby, M. J. , Salmeron-Sanchez, M. and Oreffo, R. O.C. (2020) Chondrobags: a high throughput alginate-fibronectin micromass platform for in vitro human cartilage formation. Biofabrication, 12(4), 045034. (doi: 10.1088/1758-5090/abb653)
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Abstract
The maintenance and expansion of the cells required for formation of tissue-engineered cartilage has, to date, proven difficult. This is, in part, due to the initial solid phase extracellular matrix demanded by the cells inhabiting this avascular tissue. Herein, we engineer an innovative alginate-fibronectin microfluidic-based carrier construct (termed a chondrobag) equipped with solid phase presentation of growth factors that support skeletal stem cell chondrogenic differentiation while preserving human articular chondrocyte phenotype. Results demonstrate biocompatibility, cell viability, proliferation and tissue-specific differentiation for chondrogenic markers SOX9, COL2A1 and ACAN. Modulation of chondrogenic cell hypertrophy, following culture within chondrobags loaded with TGF-β1, was confirmed by down-regulation of hypertrophic genes COL10A1 and MMP13. MicroRNAs involved in the chondrogenesis process, including miR-140, miR-146b and miR-138 were observed. Results demonstrate the generation of a novel high-throughput, microfluidic-based, scalable carrier that supports human chondrogenesis with significant implications therein for cartilage repair-based therapies.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Salmeron-Sanchez, Professor Manuel and Witte, Dr Kimia and Dalby, Professor Matthew |
| Authors: | Witte, K., de Andrés, M. C., Wells, J., Dalby, M. J., Salmeron-Sanchez, M., and Oreffo, R. O.C. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Molecular Biosciences College of Science and Engineering > School of Engineering > Biomedical Engineering |
| Journal Name: | Biofabrication |
| Publisher: | Institute of Physics Publishing Ltd. |
| ISSN: | 1758-5082 |
| ISSN (Online): | 1758-5090 |
| Copyright Holders: | Copyright © 2020 The Author(s) |
| First Published: | First published in Biofabrication 12(4):045034 |
| Publisher Policy: | Reproduced under a Creative Commons license |
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