Adhesion and growth of bone marrow stromal cells on modified alginate hydrogels.

Alginate is a biodegradable, immunocompatible biopolymer that is capable of immobilizing viable cells and bioactive factors. Few investigations have analyzed the efficacy of alginate gels as substrata for cell attachment and proliferation. Here we have compared the adhesion and subsequent growth of...

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Manylion Llyfryddiaeth
Prif Awduron: Lawson, M, Barralet, J, Wang, L, Shelton, R, Triffitt, J
Fformat: Journal article
Iaith:English
Cyhoeddwyd: 2004
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author Lawson, M
Barralet, J
Wang, L
Shelton, R
Triffitt, J
author_facet Lawson, M
Barralet, J
Wang, L
Shelton, R
Triffitt, J
author_sort Lawson, M
collection OXFORD
description Alginate is a biodegradable, immunocompatible biopolymer that is capable of immobilizing viable cells and bioactive factors. Few investigations have analyzed the efficacy of alginate gels as substrata for cell attachment and proliferation. Here we have compared the adhesion and subsequent growth of human and rat bone marrow stromal fibroblastic cells on unmodified alginate hydrogel surfaces. It was found that, in contrast to rat cells, human cells did not readily attach or proliferate on unmodified alginates. In attempts to enhance these features, or collagen type I was incorporated into the gels, with no significant improvements in prolonged human cell adherence. However, alginate gels containing both collagen type I and beta-tricalcium phosphate were found to enhance human cell adherence and proliferation. Furthermore, interactions between the collagen and beta-tricalcium phosphate prevented loss of the protein from the hydrogels. These results indicate that alginate gels containing collagen have potential uses as vehicles for delivery of adherent cells to a tissue site. In addition, gels containing beta-tricalcium phosphate, with or without collagen type I incorporation, have potential to support cell growth and differentiation in vitro before implantation. This study emphasizes the limitations of the uses of cells derived from experimental animals in certain model studies relating to human tissue engineering.
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spelling oxford-uuid:76c1f436-1f4c-4ae4-97ee-1bfc98f331b32022-03-26T20:18:28ZAdhesion and growth of bone marrow stromal cells on modified alginate hydrogels.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:76c1f436-1f4c-4ae4-97ee-1bfc98f331b3EnglishSymplectic Elements at Oxford2004Lawson, MBarralet, JWang, LShelton, RTriffitt, JAlginate is a biodegradable, immunocompatible biopolymer that is capable of immobilizing viable cells and bioactive factors. Few investigations have analyzed the efficacy of alginate gels as substrata for cell attachment and proliferation. Here we have compared the adhesion and subsequent growth of human and rat bone marrow stromal fibroblastic cells on unmodified alginate hydrogel surfaces. It was found that, in contrast to rat cells, human cells did not readily attach or proliferate on unmodified alginates. In attempts to enhance these features, or collagen type I was incorporated into the gels, with no significant improvements in prolonged human cell adherence. However, alginate gels containing both collagen type I and beta-tricalcium phosphate were found to enhance human cell adherence and proliferation. Furthermore, interactions between the collagen and beta-tricalcium phosphate prevented loss of the protein from the hydrogels. These results indicate that alginate gels containing collagen have potential uses as vehicles for delivery of adherent cells to a tissue site. In addition, gels containing beta-tricalcium phosphate, with or without collagen type I incorporation, have potential to support cell growth and differentiation in vitro before implantation. This study emphasizes the limitations of the uses of cells derived from experimental animals in certain model studies relating to human tissue engineering.
spellingShingle Lawson, M
Barralet, J
Wang, L
Shelton, R
Triffitt, J
Adhesion and growth of bone marrow stromal cells on modified alginate hydrogels.
title Adhesion and growth of bone marrow stromal cells on modified alginate hydrogels.
title_full Adhesion and growth of bone marrow stromal cells on modified alginate hydrogels.
title_fullStr Adhesion and growth of bone marrow stromal cells on modified alginate hydrogels.
title_full_unstemmed Adhesion and growth of bone marrow stromal cells on modified alginate hydrogels.
title_short Adhesion and growth of bone marrow stromal cells on modified alginate hydrogels.
title_sort adhesion and growth of bone marrow stromal cells on modified alginate hydrogels
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