Study on Chitosan-Based Nanocomposite Hydrogel in Soft Tissue Defect of Hand

Hand soft tissue defects are a common disease in surgical emergency, which seriously affects the limb function of patients and significantly reduces their quality of life. To effectively repair hand soft tissue defects, a difficult problem posed to surgeons, we report here the use of a chitosan-based nanocomposite hydrogel (CS-GEL-PDRN). In vitro experiments showed that the nanocomposite hydrogel could promote the proliferation of human embryonic fibroblasts M-22 and human vascular endothelial cells EC-304. In addition, the hydrogel had excellent blood compatibility. In the rabbit model of soft tissue defects, CS-GEL-PDRN effectively coordinated cytokine responses, accelerated wound healing and promoted tissue repair. Based on this, CS-GEL-PDRN is expected to play a clinical role in the repair of hand and other soft tissue defects in the future.