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Recombinant spider silk with cell binding motifs for specific adherence of cells
Swedish University of Agricultural Sciences.
Swedish University of Agricultural Sciences.
Swedish University of Agricultural Sciences.
Swedish University of Agricultural Sciences.
2013 (English)In: Biomaterials, ISSN 0142-9612, E-ISSN 1878-5905, Vol. 34, no 33, 8223-8234 p.Article in journal (Refereed) Published
Abstract [en]

Silk matrices have previously been shown to possess general properties governing cell viability. However, many cell types also require specific adhesion sites for successful in vitro culture. Herein, we have shown that cell binding motifs can be genetically fused to a partial spider silk protein, 4RepCT, without affecting its ability to self-assemble into stable matrices directly in a physiological-like buffer. The incorporated motifs were exposed in the formed matrices, and available for binding of integrins. Four different human primary cell types; fibroblasts, keratinocytes, endothelial cells and Schwann cells, were applied to the matrices and investigated under serum-free culture conditions. Silk matrices with cell binding motifs, especially RGD, were shown to promote early adherence of cells, which formed stress fibers and distinct focal adhesion points. Schwann cells acquired most spread-out morphology on silk matrices with IKVAV, where significantly more viable cells were found, also when compared to wells coated with laminin. This strategy is thus suitable for development of matrices that allow screening of various cell binding motifs and their effect on different cell types.

Place, publisher, year, edition, pages
2013. Vol. 34, no 33, 8223-8234 p.
Keyword [en]
Spider silk, Cell culture matrices, Cell adhesion, Integrin
National Category
Cell and Molecular Biology
Research subject
Natural Science
Identifiers
URN: urn:nbn:se:lnu:diva-61318DOI: 10.1016/j.biomaterials.2013.07.058OAI: oai:DiVA.org:lnu-61318DiVA: diva2:1081152
Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-03-20Bibliographically approved

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Johansson, Ulrika
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CiteExportLink to record
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Cite
Citation style
  • apa
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  • modern-language-association-8th-edition
  • vancouver
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  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
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