| Cartilage regeneration using zonal chondrocyte subpopulations: a promising approach or an overcomplicated strategy? | |
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MedLine Citation:
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PMID: 23135870 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Cartilage defects heal imperfectly and osteoarthritic changes develop frequently as a result. Although the existence of specific behaviours of chondrocytes derived from various depth-related zones in vitro has been known for over 20 years, only a relatively small body of in vitro studies has been performed with zonal chondrocytes and current clinical treatment strategies do not reflect these native depth-dependent (zonal) differences. This is surprising since mimicking the zonal organization of articular cartilage in neo-tissue by the use of zonal chondrocyte subpopulations could enhance the functionality of the graft. Although some research groups including our own have made considerable progress in tailoring culture conditions using specific growth factors and biomechanical loading protocols, we conclude that an optimal regime has not yet been determined. Other unmet challenges include the lack of specific zonal cell sorting protocols and limited amounts of cells harvested per zone. As a result, the engineering of functional tissue has not yet been realized and no long-term in vivo studies using zonal chondrocytes have been described. This paper critically reviews the research performed to date and outlines our view of the potential future significance of zonal chondrocyte populations in regenerative approaches for the treatment of cartilage defects. Secondly, we briefly discuss the capabilities of additive manufacturing technologies that can not only create patient-specific grafts directly from medical imaging data sets but could also more accurately reproduce the complex 3D zonal extracellular matrix architecture using techniques such as hydrogel-based cell printing. Copyright © 2012 John Wiley & Sons, Ltd. |
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Authors:
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W Schuurman; T J Klein; W J A Dhert; P R van Weeren; D W Hutmacher; J Malda |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-11-8 |
Journal Detail:
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Title: Journal of tissue engineering and regenerative medicine Volume: - ISSN: 1932-7005 ISO Abbreviation: J Tissue Eng Regen Med Publication Date: 2012 Nov |
Date Detail:
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Created Date: 2012-11-8 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101308490 Medline TA: J Tissue Eng Regen Med Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 John Wiley & Sons, Ltd. |
Affiliation:
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Department of Orthopaedics, University Medical Center Utrecht, The Netherlands; Department of Equine Sciences, Faculty of Veterinary Sciences, Utrecht University, The Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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