Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 181, Issue -, Pages 369-377Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2021.03.085
Keywords
Hydroxyapatite; Chitosan; Tilapia peptides; Burn healing; VEGF
Funding
- Project of Science and Technology Plan of Guangdong Province [2017A010103023, 2018A030307015]
- Guangdong University Youth Innovation Talent Project [2020KQNCX023]
- public service platformof south China Sea for R&Dmarine biomedicine resources [2017C8A]
- Fund of SouthernMarine Science and Engineering Guangdong Laboratory (Zhanjiang) [ZJW-2019-007]
- Science and Technology Program of Guangdong Province [2019B090905011]
- National Natural Science Foundation of China [81803684]
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Efficacy of novel hydrogels incorporating tilapia peptides and hydroxyapatite in promoting wound healing was demonstrated, showing excellent water absorption, antimicrobial activity, and ability to enhance skin regeneration.
There is an urgent need for wound dressings to treat partial-thickness burns. Hydrogels are a promising material that can maintain hydration to promote necrotic tissue removal. Tilapia peptides (TP) and hydroxyapatite (HA) were incorporated into chitosan system to prepare new types of hydrogels. The hydrogels were cross-linking by tannin (TA), which were developed to promote rapid wound healing in a New Zealand rabbit partial-thickness burn model. Nanohydroxyapatite (NHA) was synthesized by coprecipitation method, which made hydrogels have a highly porous structure comprised of interconnected pores, excellent water absorption and low hemoly-sis. Besides, the hydrogels showed excellent antimicrobial activities against both Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), as well as the cytocompatibility on endothelial cells. Moreover, the hydrogels promoted epithelial and dermal regeneration, reduce the expression of TNF-alpha and IL-6 and promote the skin re-generation by enhancing expression of collagen, STAT3, and VEGF. (c) 2021 Published by Elsevier B.V.
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