Metronidazole-loaded polydopamine nanomedicine with antioxidant and antibacterial bioactivity for periodontitis

作者：Yan, Meng; Liang, Wen; Du, Lan; Guo, Rongjuan; Cao, Yu; Ni, Sheng; Zhong, Yuan; Zhang, Kun; Qu, Kai; Qin, Xian; Chen, Liang^*; Wu, Wei^*

来源：Nanomedicine, 2023, 18(29): 2143-2157.

DOI：10.2217/nnm-2023-0245

• antibacterial
• antioxidant
• nanomedicine
• periodontitis
• polydopamine

Aim: This study focused on treating periodontitis with bacterial infection and local over accumulation of reactive oxygen species. Materials & methods: Polydopamine nanoparticles (PDA NPs) were exploited as efficient carriers for encapsulated metronidazole (MNZ). The therapeutic efficacy and biocompatibility of PDA@MNZ NPs were investigated through both in vitro and in vivo studies. Results: The nanodrug PDA@MNZ NPs were successfully fabricated, with well-defined physicochemical characteristics. In vitro, the PDA@MNZ NPs effectively eliminated intracellular reactive oxygen species and inhibited the growth of Porphyromonas gingivalis. Moreover, the PDA@MNZ NPs exhibited synergistic therapy for periodontitisin in vivo. Conclusion: PDA@MNZ NPs were confirmed with exceptional antimicrobial and antioxidant functions, offering a promising avenue for synergistic therapy in periodontitis. @@@ A nanotherapeutic composed of dopamine nanoparticles loaded with metronidazole exhibited antimicrobial and antioxidative activities, presenting a safe and effective approach to periodontitis.

• 单位
  重庆大学