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Publication
Cell-instructive pectin hydrogels crosslinked via thiol-norbornene photo-click chemistry for skin tissue engineering
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Advisor(s)
Abstract(s)
Cell-instructive hydrogels are attractive for skin repair and regeneration, serving as interactive matrices
to promote cell adhesion, cell-driven remodeling and de novo deposition of extracellular matrix compo nents. This paper describes the synthesis and photocrosslinking of cell-instructive pectin hydrogels using
cell-degradable peptide crosslinkers and integrin-specific adhesive ligands. Protease-degradable hydro gels obtained by photoinitiated thiol-norbornene click chemistry are rapidly formed in the presence of
dermal fibroblasts, exhibit tunable properties and are capable of modulating the behavior of embedded
cells, including the cell spreading, hydrogel contraction and secretion of matrix metalloproteases.
Keratinocytes seeded on top of fibroblast-loaded hydrogels are able to adhere and form a compact and
dense layer of epidermis, mimicking the architecture of the native skin. Thiol-ene photocrosslinkable pec tin hydrogels support the in vitro formation of full-thickness skin and are thus a highly promising plat form for skin tissue engineering applications, including wound healing and in vitro testing mod
Description
Keywords
Thiol-norbornene Photocrosslinking Pectin Hydrogel Dermal fibroblasts Skin
Pedagogical Context
Citation
úben F. Pereira, Cristina C. Barrias, Paulo J. Bártolo, Pedro L. Granja, Cell-instructive pectin hydrogels crosslinked via thiol-norbornene photo-click chemistry for skin tissue engineering, Acta Biomaterialia, Volume 66, 2018, Pages 282-293, ISSN 1742-7061, https://doi.org/10.1016/j.actbio.2017.11.01
Publisher
Elsevier