alexa Experimental therapeutics: targeting the redox Achilles heel of cancer.
Ophthalmology

Ophthalmology

Journal of Clinical & Experimental Ophthalmology

Author(s): Cabello CM, Bair WB rd, Wondrak GT

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Abstract Reactive oxygen species (ROS) have recently emerged as promising targets for anticancer drug discovery. Constitutively elevated levels of cellular oxidative stress and dependence on mitogenic and anti-apoptotic ROS signaling represent a specific vulnerability of malignant cells that can be selectively targeted by novel pro- and antioxidant redox chemotherapeutics. This review discusses small-molecule anticancer redox drugs currently in various phases of preclinical and clinical development that are characterized by their unique mechanism of action, including small-molecule superoxide dismutase and catalase mimetics, bioreductively activated pro-oxidant redox catalysts, metal-based pro-oxidants, hypoxia-selective free radical precursors, and specific antagonists of the cancer cell antioxidant glutathione or thioredoxin redox systems. Based on ongoing redox biomarker discovery and validation, future redox phenotyping and genotyping may guide the selection of novel redox chemotherapeutics that efficiently target the redox Achilles heel of the individual tumor.
This article was published in Curr Opin Investig Drugs and referenced in Journal of Clinical & Experimental Ophthalmology

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