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Li, S.* ; Wang, X.* ; Chen, J.* ; Guo, J.* ; Yuan, M.* ; Wan, G.* ; Yan, C.* ; Li, W.* ; Machens, H.G.* ; Rinkevich, Y. ; Yang, X.* ; Song, H.* ; Chen, Z.*

Calcium ion cross-linked sodium alginate hydrogels containing deferoxamine and copper nanoparticles for diabetic wound healing.

Int. J. Biol. Macromol. 202, 657-670 (2022)
DOI PMC
Chronic non-healing diabetic wounds and ulcers can be fatal, lead to amputations, and remain a major challenge to medical, and health care sectors. Susceptibility to infection and impaired angiogenesis are two central reasons for the clinical consequences associated with chronic non-healing diabetic wounds. Herein, we successfully developed calcium ion (Ca2+) cross-linked sodium alginate (SA) hydrogels with both pro-angiogenesis and antibacterial properties. Our results demonstrated that deferoxamine (DFO) and copper nanoparticles (Cu-NPs) worked synergistically to enhance the proliferation, migration, and angiogenesis of human umbilical venous endothelial cells in vitro. Results of colony formation assay indicated Cu-NPs were effective against E. coli and S. aureus in a dose-dependent manner in vitro. An SA hydrogel containing both DFO and Cu-NPs (SA-DFO/Cu) was prepared using a Ca2+ cross-linking method. Cytotoxicity assay and colony formation assay indicated that the hydrogel exhibited beneficial biocompatible and antibacterial properties in vitro. Furthermore, SA-DFO/Cu significantly accelerated diabetic wound healing, improved angiogenesis and reduced long-lasting inflammation in a mouse model of diabetic wound. Mechanistically, DFO and Cu-NPs synergistically stimulated the levels of hypoxia-inducible factor 1α and vascular endothelial growth factor in vivo. Given the pro-angiogenesis, antibacterial and healing properties, the hydrogel possesses high potential for clinical application in refractory wounds.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Copper Nanoparticles ; Deferoxamine ; Diabetic Wound ; Hydrogel
ISSN (print) / ISBN 0141-8130
e-ISSN 1879-0003
Zeitschrift International Journal of Biological Macromolecules
Quellenangaben Band: 202, Heft: , Seiten: 657-670 Artikelnummer: , Supplement: ,
Verlag Elsevier
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Regenerative Biology and Medicine (IRBM)
Förderungen Guangxi Key Research and Development Program
National Key Research and Development Program of China
National Natural Science Foundation of China