Research Progress Based on Regulation of Tumor Microenvironment Redox and Drug-Loaded Metal-Organic Frameworks

Area of Science:

• Biomedical Engineering
• Materials Science
• Oncology

Background:

• Tumor microenvironments exhibit increased oxygen free radicals, high glutathione, and hypoxia, complicating effective cancer treatment.
• Poor drug targeting and delivery further limit the efficacy of conventional tumor therapies.
• Metal-organic frameworks (MOFs) are emerging as promising platforms for advanced cancer treatment strategies.

Purpose of the Study:

• To review the design and application of reactive oxygen species (ROS) and redox-activated drug-loaded MOF preparations for tumor therapy.
• To discuss the current research challenges and future application prospects of MOFs in the field of oncology.

Main Methods:

• Literature review focusing on MOF-based drug delivery systems for cancer treatment.
• Analysis of MOF properties relevant to tumor microenvironment modulation (e.g., ROS generation, redox response).
• Examination of studies detailing the loading and release of therapeutic agents using MOFs.

Main Results:

• MOFs can be engineered to respond to the unique conditions of the tumor microenvironment, such as elevated ROS and glutathione levels.
• Redox-activated MOFs demonstrate potential for targeted drug release, enhancing therapeutic efficacy and reducing systemic toxicity.
• The review highlights various MOF designs incorporating ROS-scavenging or ROS-generating capabilities for synergistic cancer therapy.

Conclusions:

• Engineered MOFs show significant promise for overcoming key challenges in tumor therapy, including hypoxia and poor drug targeting.
• Reactive oxygen species (ROS) and redox-responsive MOFs represent a viable strategy for developing next-generation cancer treatments.
• Further research into MOF design and clinical translation is crucial for realizing their full potential in oncology.