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Strategies to promote chondrogenesis and osteogenesis from human bone marrow cells and articular chondrocytes encapsulated in polysaccharide templates

Pound, Jodie C., Green, David W., Chaudhuri, Julian B., Mann, Stephen, Roach, Helmtrud I. and Oreffo, Richard O.C. (2006) Strategies to promote chondrogenesis and osteogenesis from human bone marrow cells and articular chondrocytes encapsulated in polysaccharide templates Tissue Engineering, 12, (10), pp. 2789-2799. (doi:10.1089/ten.2006.12.2789).

Record type: Article


The aim of this study was to synthesize functional in vitro and in vivo 3-dimensional (3D) constructs using a mix of human mesenchymal populations and articular chondrocytes encapsulated in biomineralized polysaccharide templates. Single-cell-type populations or mixtures of both cell types were encapsulated in alginate/chitosan and cultured within a rotating-bioreactor, perfused bioreactor system, or static conditions for 28 days. Within single cell-type populations, type II collagen immunopositive cells were present within lacunae in rotating-bioreactor capsules, with an increased proportion of metabolically active cells compared with perfused and static constructs. Biochemical analysis indicated significantly increased ( p < 0.05) DNA and protein in rotating-bioreactor conditions compared with perfused or static. However, in coculture samples, DNA and protein was significantly increased in static cultures owing to the formation of large regions of partially mineralized osteoid. This osteoid was found only in static cultures and when the ratio of human bone marrow cells to chondrocytes was 2:1 or, to a lesser extent, 5:1 ratio capsules. Subcutaneous implantation of capsules into immunocompromised mice also showed optimal osteoid formation when the ratio was 2:1. The current studies demonstrate the pivotal role of robust 3D biomimetic microenvironments and indicate the potential to harness the interactions between different cell types to create specific tissues.

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Published date: 1 October 2006
Keywords: cell differentiation, methods, polysaccharides, cell proliferation, biocompatible materials, cytology, chondrogenesis, chondrocytes, origins, capsules, articular, nude, disease, transplantation, tissue engineering, osteogenesis, bone marrow, research, chemistry, collagen, bone marrow cells, health, cells, protein, humans, in-vivo, human, in-vitro, bone, analysis, developmental origins, bone marrow transplantation, cultured, dna, cartilage, animals, physiology, mice


Local EPrints ID: 61448
ISSN: 1076-3279
PURE UUID: 3ad9b57a-e2eb-472e-b871-dd8d73e015e8
ORCID for David W. Green: ORCID iD
ORCID for Richard O.C. Oreffo: ORCID iD

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Date deposited: 02 Oct 2008
Last modified: 17 Jul 2017 14:22

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Author: Jodie C. Pound
Author: David W. Green ORCID iD
Author: Julian B. Chaudhuri
Author: Stephen Mann
Author: Helmtrud I. Roach

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