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Published on: January 19, 2024
Small-Molecule Inhibitors of Reactive Oxygen Species Production
Elisa Sassetti1, Mads H Clausen1, Luca Laraia1
1Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kgs. Lyngby, Denmark.
Abstract:
Reactive oxygen species (ROS) are involved in physiological cellular processes including differentiation, proliferation, and apoptosis by acting as signaling molecules or regulators of transcription factors. The maintenance of appropriate cellular ROS levels is termed redox homeostasis, a balance between their production and neutralization. High concentrations of ROS may contribute to severe pathological events including cancer, neurodegenerative, and cardiovascular diseases. In recent years, approaches to target the sources of ROS production directly in order to develop tool compounds or potential therapeutics have been explored. Herein, we briefly outline the major sources of cellular ROS production and comprehensively review the targeting of these by small-molecule inhibitors. We critically assess the value of ROS inhibitors with different mechanisms-of-action, including their potency, mode-of-action, known off-target effects, and clinical or preclinical status, while suggesting future avenues of research in the field.
Insights
Reactive oxygen species (ROS) are crucial for cell signaling but can cause diseases like cancer when imbalanced. This review explores small-molecule inhibitors targeting ROS production for therapeutic development.
Area of Science:
- Biochemistry
- Cell Biology
- Pharmacology
Background:
- Reactive oxygen species (ROS) are vital signaling molecules regulating cellular processes like proliferation and apoptosis.
- Maintaining redox homeostasis, the balance of ROS production and neutralization, is critical for cell health.
- Elevated ROS levels are implicated in major diseases, including cancer, neurodegeneration, and cardiovascular conditions.
Purpose of the Study:
- To outline major cellular sources of ROS production.
- To comprehensively review small-molecule inhibitors targeting ROS production.
- To critically assess the therapeutic potential and future research directions for ROS inhibitors.
Main Methods:
- Literature review of major cellular ROS production pathways.
- Systematic evaluation of small-molecule ROS inhibitors.
- Analysis of inhibitor potency, mechanism of action, off-target effects, and clinical/preclinical status.
Main Results:
- Identification of key cellular sources of ROS.
- Compilation and critical assessment of various ROS-targeting small-molecule inhibitors.
- Evaluation of the therapeutic landscape and challenges in developing ROS inhibitors.
Conclusions:
- Targeting ROS production with small molecules presents a promising therapeutic strategy for diseases linked to oxidative stress.
- Further research is needed to optimize inhibitor specificity, potency, and clinical efficacy.
- Understanding ROS sources and inhibitor profiles is crucial for advancing redox-based therapies.
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