Controlled cell migration within cell selective hydrogels

E. Thomas Pashuck, Stephanie L. Fung, Neil S. Joshi, Joachim Kohn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

All tissues in the body consist of multiple cells types that work together to perform biological functions. However, the majority of matrices used in biomaterials are optimized for only a single cell type. To more fully recapitulate the in vivo environment, biomaterials will need to be developed that can respond differently to the various cell types that exist within a tissue. This is especially true for injury sites, where the local inflammatory response and immune cell infiltration plays an important role in regenerative processes. There are many differences cell types, but enzymes are an especially useful tool for material design since they perform a chemical function. Proteases have been used extensively in biomaterials, but almost exclusively for degrading matrices for cell migration. In this work, we utilize proteases to create reactive groups which will form cross-links after cleavage from specific cell-secreted proteases.1 We used peptide sequences which generate an N-terminal cysteine after enzymatic cleavage (Figure 1A). These cysteines, but not cysteines within the peptide sequences, will react with a cyanobenzothiazole (CBT) moiety to form a new crosslink (Figure 1B). By creating materials in which crosslinks form from proteases secreted by specific cells we can use proteolytic activity to prevent cells from migrating in these hydrogels.

Original languageEnglish (US)
Title of host publicationSociety for Biomaterials Annual Meeting and Exposition 2019
Subtitle of host publicationThe Pinnacle of Biomaterials Innovation and Excellence - Transactions of the 42nd Annual Meeting
PublisherSociety for Biomaterials
Number of pages1
ISBN (Electronic)9781510883901
StatePublished - Jan 1 2019
Event42nd Society for Biomaterials Annual Meeting and Exposition 2019: The Pinnacle of Biomaterials Innovation and Excellence - Seattle, United States
Duration: Apr 3 2019Apr 6 2019

Publication series

NameTransactions of the Annual Meeting of the Society for Biomaterials and the Annual International Biomaterials Symposium
Volume40

Conference

Conference42nd Society for Biomaterials Annual Meeting and Exposition 2019: The Pinnacle of Biomaterials Innovation and Excellence
CountryUnited States
CitySeattle
Period4/3/194/6/19

All Science Journal Classification (ASJC) codes

  • Materials Chemistry
  • Biophysics
  • Biochemistry
  • Biotechnology
  • Biomaterials

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  • Cite this

    Pashuck, E. T., Fung, S. L., Joshi, N. S., & Kohn, J. (2019). Controlled cell migration within cell selective hydrogels. In Society for Biomaterials Annual Meeting and Exposition 2019: The Pinnacle of Biomaterials Innovation and Excellence - Transactions of the 42nd Annual Meeting (Transactions of the Annual Meeting of the Society for Biomaterials and the Annual International Biomaterials Symposium; Vol. 40). Society for Biomaterials.