摘要
The efficient cutaneous wound healing accompanied with the enhanced skin appendage regeneration is still a challenge.The bacterial infection and excessive/prolonged inflammation inhibit wound healing process and result in the scar formation.Herein,we reported an anti-inflammatory polycitrate-polyethyleneimine-Ibuprofen(PCEI)and multifunctional PCEI-based F127-ε-polypeptide-alginic(FEA)dressing(FEA-PCEI)for accelerating wound healing and hair follicle neogenesis.PCEI showed the excellent anti-inflammation function through stimulating macrophage towards anti-inflammatory M2 subtype polarization.The FEA-PCEI dressing showed the temperature-response gelation,injectability,robust antibacterial activity,light-damage-resistant,homeostasis ability,and good cytocompatibility.The optimized dosage of FEA-PCEI dressing could significantly accelerate wound healing with anti-infection ability,reduce the scar formation,and promote the hair follicle neogenesis.This study provided a wound-repairing strategy through regulating the phenotype of immune cells by the designing bioactive multifunctional biomaterials.
基金
supported by National Natural Science Foundation of China(Grant No.51872224)
Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research,College of Stomatology,Xi'an Jiaotong University(Grant No.2018LHMKFKT004)
Special Guidance Funds for the Construction of World-class Universities(disciplines)and Characteristic Development in Central Universities(grant No.PY3A078)
the Fundamental Research Funds for the Central Universities(grant No.xzy022019050)
Wenzhou Science&Technology Bureau project(grant No.ZY2019003).
