Zinc-based metal organic framework with antibacterial and anti-inflammatory properties for promoting wound healing

作者：Yuting Chen, Jinhong Cai, Dachang Liu, Shuhan Liu, Doudou Lei, Li Zheng, Qingjun Wei, Ming Gao · 发表于：Regenerative Biomaterials · 年份：2022 · DOI：10.1093/rb/rbac019 · 被引用次数：149 · 研究领域：Nanoplatforms for cancer theranostics、Scientific and Engineering Research Topics、Advanced Nanomaterials in Catalysis

Abstract The synergistic effect of antibacterial and anti-inflammatory is needed to overcome the problem of wound healing difficulties. Based on the favorable antibacterial and anti-inflammatory effect of zinc ions (Zn2+) and the physicochemical properties of metal organic frameworks (MOFs), we prepared nanosized zinc-based MOF: Zn-BTC with the ability to slowly release Zn2+. In cellular levels, Zn-BTC possessed lower toxicity to fibroblasts and enhanced capacity of cell proliferation and migration. It also had good bactericidal effect on multiple drug-resistant bacteria by reducing 41.4% MRSA and 47.2% Escherichia coli. In addition, Zn-BTC also displayed the ability of lowering the expression of antioxidant genes: superoxide dismutase 1, superoxide dismutase 2 and interleukin 6, and enhancing the expression of wound healing genes: transforming growth factors-β and type I collagen. Finally, it also demonstrated that Zn-BTC could effectively improve the skin wound healing of SD rats and had no toxicity on major organs. The favorable biocompatibility, antibacterial and anti-inflammatory properties of Zn-BTC gave a new insight of designing novel MOFs for promoting skin wound healing.