Catalyst-Free Click Chemistry for Engineering Chondroitin Sulfate-Multiarmed PEG Hydrogels for Skin Tissue Engineering.

Autor: Sousa GF; LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, Materials Science & Engineering Graduate Program, UFPI-Federal University of Piauí, Teresina 64049-550, PI, Brazil., Afewerki S; Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.; Division of Health Sciences and Technology, Harvard University-Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA., Dittz D; Biochemistry and Pharmacology Department, UFPI-Federal University of Piauí, Teresina 64049-550, PI, Brazil., Santos FEP; Physics Department, UFPI-Federal University of Piauí, Teresina 64049-550, PI, Brazil., Gontijo DO; Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil., Scalzo SRA; Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil., Santos ALC; Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil., Guimaraes LC; Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil., Pereira EM; Laboratory of Immunogenetics and Molecular Biology, UFPI-Federal University of Piauí, Teresina 64049-550, PI, Brazil., Barcelos LS; Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil., Do Monte SJH; Laboratory of Immunogenetics and Molecular Biology, UFPI-Federal University of Piauí, Teresina 64049-550, PI, Brazil., Guimaraes PPG; Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil., Marciano FR; Physics Department, UFPI-Federal University of Piauí, Teresina 64049-550, PI, Brazil., Lobo AO; LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, Materials Science & Engineering Graduate Program, UFPI-Federal University of Piauí, Teresina 64049-550, PI, Brazil.
Jazyk: angličtina
Zdroj: Journal of functional biomaterials [J Funct Biomater] 2022 Apr 18; Vol. 13 (2). Date of Electronic Publication: 2022 Apr 18.
DOI: 10.3390/jfb13020045
Abstrakt: The quest for an ideal biomaterial perfectly matching the microenvironment of the surrounding tissues and cells is an endless challenge within biomedical research, in addition to integrating this with a facile and sustainable technology for its preparation. Engineering hydrogels through click chemistry would promote the sustainable invention of tailor-made hydrogels. Herein, we disclose a versatile and facile catalyst-free click chemistry for the generation of an innovative hydrogel by combining chondroitin sulfate (CS) and polyethylene glycol (PEG). Various multi-armed PEG-Norbornene (A-PEG-N) with different molecular sizes were investigated to generate crosslinked copolymers with tunable rheological and mechanical properties. The crosslinked and mechanically stable porous hydrogels could be generated by simply mixing the two clickable Tetrazine-CS (TCS) and A-PEG-N components, generating a self-standing hydrogel within minutes. The leading candidate (TCS-8A-PEG-N (40 kD)), based on the mechanical and biocompatibility results, was further employed as a scaffold to improve wound closure and blood flow in vivo. The hydrogel demonstrated not only enhanced blood perfusion and an increased number of blood vessels, but also desirable fibrous matrix orientation and normal collagen deposition. Taken together, these results demonstrate the potential of the hydrogel to improve wound repair and hold promise for in situ skin tissue engineering applications.
Databáze: MEDLINE
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