Copper-Bearing Metal-Organic Framework with Mucus-Penetrating Function for the Multi-Effective Clearance of Mucosal Colonized Helicobacter pylori
colonizes over 50% of people worldwide. Biofilm formation through penetrating gastric mucus and resistance acquired by
H. pylori
markedly reduces the efficacy of traditional antibiotics. The present triple therapy and bismuth-based quadruple therapy inevitably causes intestinal flora disturbance and fails to address the excessive
H. pylori
-triggered inflammatory response. Herein, a mucus-permeable therapeutic platform (Cu-MOF@NF) that consists of copper-bearing metal-organic framework (Cu-MOF) loaded with nitrogen-doped carbon dots and naturally active polysaccharide fucoidan is developed. The experimental results demonstrate that Cu-MOF@NF can penetrate the mucus layer and hinder
H. pylori
from adhering on gastric epithelial cells of the stomach. Notably, released Cu
2+
can degrade the polysaccharides in the biofilm and interfere with the cyclic growing mode of “bacterioplankton ↔ biofilm”, thereby preventing recurrent and persistent infection. Compared with traditional triple therapy, the Cu-MOF@NF not only possesses impressive antibacterial effect (even include multidrug-resistant strains), but also improves the inflammatory microenvironment without disrupting the balance of intestinal flora, providing a more efficient, safe, and antibiotic-free new approach to eradicating
H. pylori
.
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Jennifer A. Gaddy, Jana N. Radin, Thomas W. Cullen et al.
Hans-Curt Flemming, Eric D. Van Hullebusch, Thomas R. Neu et al.
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- Published
- Jan 01, 2024
- Vol/Issue
- 7
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