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Published on: March 15, 2024
Nanomaterial-Induced Bacterial Ferroptosis-Like Death: A Novel Strategy to Counteract Antimicrobial Resistance
Xiaoyue Wu1,2,3, Yanying Wang1, Tinglin Zhang2,4
1Department of Gastroenterology, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, People's Republic of China.
Abstract:
The escalating crisis of antimicrobial resistance (AMR) poses a profound threat to global public health, necessitating the development of alternative antibacterial strategies. Ferroptosis, an iron-dependent form of regulated cell death driven by lipid peroxidation, has recently emerged as a promising strategy for combating drug-resistant bacteria. In this review, we systematically summarize how nanomaterials precisely regulate bacterial iron metabolism through chemical kinetics, photodynamics, sonodynamics, and nanoenzyme catalytic pathways, which promote iron storage and reactive oxygen species (ROS) generation, destroy the antioxidant defense system, and eventually lead to ferroptosis-like lipid peroxidation and membrane damage. In addition, this study focused on the synergistic activation of the host immune response by nanomaterials through the regulation of macrophage polarization and the cytokine network, thereby enhancing bacterial clearance and tissue repair. As an emerging nonantibiotic antimicrobial method, nanomaterial-mediated bacterial ferroptosis provides new insights and approaches to address the challenge of drug-resistant infections.
Insights
Nanomaterials combat antimicrobial resistance by inducing ferroptosis, a cell death pathway, in bacteria. This approach enhances immune response and offers a novel non-antibiotic strategy against drug-resistant infections.
Area of Science:
- Biomedical Engineering
- Materials Science
- Infectious Diseases
Background:
- Antimicrobial resistance (AMR) is a global health crisis requiring novel antibacterial strategies.
- Ferroptosis, an iron-dependent cell death, shows promise against drug-resistant bacteria.
Purpose of the Study:
- To review how nanomaterials induce bacterial ferroptosis.
- To explore nanomaterial-mediated immune response activation for enhanced bacterial clearance.
Main Methods:
- Systematic review of nanomaterial interactions with bacterial iron metabolism.
- Analysis of chemical kinetics, photodynamics, sonodynamics, and nanoenzyme catalysis.
- Investigation of nanomaterial effects on host immune responses like macrophage polarization.
Main Results:
- Nanomaterials precisely regulate bacterial iron metabolism, promoting ROS generation and lipid peroxidation.
- Nanomaterials disrupt bacterial antioxidant defenses, leading to ferroptosis-like cell death.
- Nanomaterials synergistically activate host immunity, enhancing bacterial clearance and tissue repair.
Conclusions:
- Nanomaterial-mediated bacterial ferroptosis is a promising non-antibiotic antimicrobial strategy.
- This approach offers new insights for combating drug-resistant infections.
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