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Title: Sequential differentiation of mesenchymal stem cells in an agarose scaffold promotes a physis-like zonal alignment of chondrocytes
Authors: Schmitt, J.F.
Hua, S.K.
Zheng, Y. 
Po, J.H.H.
Hin, L.E.
Keywords: chondrogenesis
growth plate
human mesenchymal stem cells
Issue Date: Nov-2012
Citation: Schmitt, J.F., Hua, S.K., Zheng, Y., Po, J.H.H., Hin, L.E. (2012-11). Sequential differentiation of mesenchymal stem cells in an agarose scaffold promotes a physis-like zonal alignment of chondrocytes. Journal of Orthopaedic Research 30 (11) : 1753-1759. ScholarBank@NUS Repository.
Abstract: Chondrocytes of the epiphyseal growth plate (physis) differentiate and mature in defined linear zones. The current study examines the differentiation of human bone marrow derived mesenchymal stem cells (hBMSCs) into zonal physeal cartilage. hBMSCs were embedded in an agarose scaffold with only the surface of the scaffold in direct contact with the culture medium. The cells were differentiated using a two-step system involving the sequential addition of TGFβ followed by BMP2. The resultant samples displayed a heterogenic population of physis-like collagen type 2 positive cells including proliferating chondrocytes and mature chondrocytes showing hypertrophy, expression of early bone markers and matrix mineralization. Histological analysis revealed a physis-like linear zonal alignment of chondrocytes in varying stages of differentiation. The less mature chondrocytes were seen at the base of the construct while hypertrophic chondrocytes and matrix mineralization was observed closer to the surface of the construct. The described differentiation protocol using hBMSCs in an agarose scaffold can be used to study the factors and conditions that influence the differentiation, proliferation, maturation, and zonal alignment of physeal chondrocytes. © 2012 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 30:1753-1759, 2012.
Source Title: Journal of Orthopaedic Research
ISSN: 07360266
DOI: 10.1002/jor.22123
Appears in Collections:Staff Publications

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