Please use this identifier to cite or link to this item: https://doi.org/10.1089/ten.2006.0224
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dc.titleIn vitro enhancement of collagen matrix formation and crosslinking for applications in tissue engineering: A preliminary study
dc.contributor.authorLareu, R.R.
dc.contributor.authorArsianti, I.
dc.contributor.authorSubramhanya, H.K.
dc.contributor.authorYanxian, P.
dc.contributor.authorRaghunath, M.
dc.date.accessioned2014-06-17T09:44:29Z
dc.date.available2014-06-17T09:44:29Z
dc.date.issued2007-02
dc.identifier.citationLareu, R.R., Arsianti, I., Subramhanya, H.K., Yanxian, P., Raghunath, M. (2007-02). In vitro enhancement of collagen matrix formation and crosslinking for applications in tissue engineering: A preliminary study. Tissue Engineering 13 (2) : 385-391. ScholarBank@NUS Repository. https://doi.org/10.1089/ten.2006.0224
dc.identifier.issn10763279
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/67103
dc.description.abstractThe construction of stable engineered tissue depends on the formation of a functional connective tissue produced by cells locally. A major component of connective tissue is collagen. Its deposition into a stable matrix depends on the enzymatic extracellular conversion of procollagen to collagen. This step is very slow in vitro and we hypothesized that this is due to a lack of crowdedness and insufficient excluded volume effect (EYE) in culture media. We used neutral (670 kDa) and negatively charged dextran sulfate (DxS, 500 kDa) to create EVE in cell cultures and to enhance in vitro matrix formation by accelerating procollagen conversion. Biochemical analyses in 2 human fibroblast lines revealed mostly unprocessed procollagen in uncrowded culture medium, whereas in the presence of DxS, procollagen conversion occurred and most of the collagen was associated with the cell layer. Immunocytochemistry confirmed DxS-related collagen deposition that colocalized with fibronectin. The large neutral dextran showed, in identical concentration ranges, no effects that correlated well with its smaller hydrodynamic radius as determined by dynamic light scattering. This predicted a 10 times bigger crowding power of DxS and benchmarks it as a potentially promising crowding agent facilitating the formation of extracellular matrix in vitro. © Mary Ann Liebert, Inc.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1089/ten.2006.0224
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentBIOENGINEERING
dc.description.doi10.1089/ten.2006.0224
dc.description.sourcetitleTissue Engineering
dc.description.volume13
dc.description.issue2
dc.description.page385-391
dc.description.codenTIENF
dc.identifier.isiut000244250600017
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