journal article Open Access Sep 09, 2024

Ultrasound‐Responsive HBD Peptide Hydrogel with Antibiofilm Capability for Fast Diabetic Wound Healing

Advanced Science Vol. 11 No. 42 · Wiley
View at Publisher Save 10.1002/advs.202406022
Abstract
AbstractDespite advancements in therapeutic agents for diabetic chronic wounds, challenges such as suboptimal bioavailability, intricate disease milieus, and inadequate delivery efficacy have impeded treatment outcomes. Here, ultrasound‐responsive hydrogel incorporated with heparin‐binding domain (HBD) peptide nanoparticles is developed to promote diabetic wound healing. HBD peptide, derived from von Willebrand Factor with angiogenic activity, are first engineered to self‐assemble into nanoparticles with enhanced biostability and bioavailability. Ultrasound responsive cargo release and hydrogel collapses are first verified through breakage of crosslinking. In addition, desired antioxidant and antibacterial activity of such hydrogel is observed. Moreover, the degradation of hydrogel under ultrasound stimulation into smaller fragments facilitated the deeper wound penetration of ≈400 µm depth. Complete wound closure is observed from diabetic mice with chronic wounds after being treated with the proposed hydrogel. In detail, in vivo studies revealed that hydrogels loaded with HBD peptide nanoparticles increased the levels of angiogenesis‐related growth factors (VEGF‐A, CD31, and α‐SMA) to effectively accelerate wound repair. Overall, this study demonstrates that ultrasound‐responsive HBD peptide hydrogel provides a synergistic therapeutic strategy for external biofilm elimination and internal effective delivery for diabetic wounds with biofilm infection.
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Details
Published
Sep 09, 2024
Vol/Issue
11(42)
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Authors
Funding
National Natural Science Foundation of China Award: 22075212
Cite This Article
Lanlan Zong, Runxin Teng, Huiqi Zhang, et al. (2024). Ultrasound‐Responsive HBD Peptide Hydrogel with Antibiofilm Capability for Fast Diabetic Wound Healing. Advanced Science, 11(42). https://doi.org/10.1002/advs.202406022