光热治疗
伤害
医学
药理学
生物医学工程
纳米技术
材料科学
受体
内科学
作者
Le Jiang,Xiangyi Wu,Yifan Wang,Chunlin Liu,Yixian Wu,Jingyun Wang,Nan Xu,Zhijun He,Shuqin Wang,Hao Zhang,Xiumei Wang,Xiong Li,Qian Tan,Xiaodan Sun
标识
DOI:10.1002/advs.202300339
摘要
Infectious diabetic ulcers (IDU) require anti-infection, angiogenesis, and nerve regeneration therapy; however, the latter has received comparatively less research attention than the former two. In particular, there have been few reports on the recovery of mechanical nociception. In this study, a photothermal controlled-release immunomodulatory hydrogel nanoplatform is tailored for the treatment of IDU. Due to a thermal-sensitive interaction between polydopamine-reduced graphene oxide (pGO) and the antibiotic mupirocin, excellent antibacterial efficacy is achieved through customized release kinetics. In addition, Trem2+ macrophages recruited by pGO regulate collagen remodeling and restore skin adnexal structures to alter the fate of scar formation, promote angiogenesis, accompanied by the regeneration of neural networks, which ensures the recovery of mechanical nociception and may prevent the recurrence of IDU at the source. In all, a full-stage strategy from antibacterial, immune regulation, angiogenesis, and neurogenesis to the recovery of mechanical nociception, an indispensable neural function of skin, is introduced to IDU treatment, which opens up an effective and comprehensive therapy for refractory IDU.
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