The repair of diabetic wound still encounters huge challenges, such as disordered inflammatory regulation and impaired neovascularization. Here, a pH/ROS/glucose responsive and photothermal hydrogel is developed for diabetic wound healing. The hydrogel is formed through cross-linkage between phenylboronic acid-modified carboxymethyl chitosan (CMCS-PBA) and oxide dextran (OXD), utilizing Schiff base and phenylboronate ester bonds. Additionally, insulin-like growth factor 1 C domain (IGF-1C) and deferoxamine-loaded polydopamine nanoparticles (D@P) are incorporated into the hydrogel. The hydrogel demonstrates sustained drug release, excellent photo thermal effect, prominent antioxidant, antibacterial and anti-inflammatory activities, desirable mechanical and tissue adhesive properties, enhanced tube formation, and cell migration. Furthermore, the hydrogel combined with mild heat treatment can regulate chronic inflammation by promoting the transformation of macrophages from M1 phenotype to M2 phenotype and enhance angiogenesis by up-regulating the expression levels of angiogenesis-related factors such as hypoxia-inducible factor-1 alpha (HIF-1α), vascular endothelial growth factor (VEGF), CD31, and α-SMA, thus greatly accelerates the wound healing in streptozotocin (STZ)-induced diabetic mice. Therefore, this multi-responsive and multifunctional hydrogel holds potential as a therapeutic strategy for diabetic wounds.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11633493 | PMC |
| http://dx.doi.org/10.1002/advs.202408783 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A systematic in vitro study of the effect of normoglycaemic and hyperglycaemic conditions on the biochemical and cellular interactions of clinically-available wound dressings with different physicochemical properties.
PLoS One
January 2025
Centre for Regenerative Medicine and Devices, University of Brighton, Brighton, United Kingdom.
Diabetic foot, leg ulcers and decubitus ulcers affect millions of individuals worldwide leading to poor quality of life, pain and in several cases to limb amputations. Despite the global dimension of this clinical problem, limited progress has been made in developing more efficacious wound dressings, the design of which currently focusses on wound protection and control of its exudate volume. The present in vitro study systematically analysed seven types of clinically-available wound dressings made of different biomaterial composition and engineering.
View Article and Find Full Text PDFExtracellular vesicle-associated miR-ERIA exerts the anti-angiogenic effect of macrophages in diabetic wound healing.
Diabetes
January 2025
Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
Many cell types are involved in the regulation of cutaneous wound healing in diabetes. Clarifying the mechanism of cell-cell interactions is important for identifying therapeutic targets for diabetic cutaneous ulcers. The function of vascular endothelial cells in the cutaneous microenvironment is critical, and a decrease in their biological function leads directly to refractory wound healing.
View Article and Find Full Text PDFEnhancing Diabetic Oral Wound Healing with miR-132 Delivered Through Tetrahedral DNA Nanostructures.
Small
January 2025
Department of Operative Dentistry and Endodontics, Shanghai Stomatological Hospital and School of Stomatology, Fudan University, Shanghai, 200001, China.
Oral mucosal injuries are commonly caused by factors such as trauma, infection, or inflammation, especially in diabetic patients where healing is difficult and significantly affects quality of life. In this study, a nanocarrier system based on DNA tetrahedrons (TDN) is developed, which serve as ideal vectors due to their excellent intracellular uptake and drug delivery capabilities. By efficiently delivering miR132 into cells, the proliferation and migration of human oral mucosal fibroblasts (HOMFs) and human umbilical vein endothelial cells (HUVECs) are regulated, along with the modulation of inflammation and antioxidant processes.
View Article and Find Full Text PDFClinical Outcome After Surgical Treatment of Traumatic Peroneal Nerve Injury: An Analysis of Risk Factors After Different Surgical Approaches.
Neurol Int
January 2025
Department of Neurosurgery, University of Ulm, BKH Günzburg, Lindenallee 2, 89312 Günzburg, Germany.
Background: This study aims to analyze potential risk factors that may influence the clinical outcomes following surgical treatment of traumatic peroneal nerve lesions.
Methods: We conducted a retrospective analysis of patients with traumatic peroneal nerve injuries treated with decompression, split repair, or nerve grafting between 2010 and 2020. Motor function and potential risk factors were evaluated.
Advanced Glycation End-Product-Modified Heat Shock Protein 90 May Be Associated with Urinary Stones.
Diseases
January 2025
Department of Urology, Kanazawa Medical University, Uchinada 920-0293, Ishikawa, Japan.
Urinary stones (urolithiasis) have been categorized as kidney stones (renal calculus), ureteric stones (ureteral calculus and ureterolith), bladder stones (bladder calculus), and urethral stones (urethral calculus); however, the mechanisms underlying their promotion and related injuries in glomerular and tubular cells remain unclear. Although lifestyle-related diseases (LSRDs) such as hyperglycemia, type 2 diabetic mellitus, non-alcoholic fatty liver disease/non-alcoholic steatohepatitis, and cardiovascular disease are risk factors for urolithiasis, the underlying mechanisms remain unclear. Recently, heat shock protein 90 (HSP90) on the membrane of HK-2 human proximal tubular epithelium cells has been associated with the adhesion of urinary stones and cytotoxicity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!