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Biochemical and biophysical research communications

The novel antioxidant TA293 reveals the role of cytoplasmic hydroxyl radicals in oxidative stress-induced senescence and inflammation.


PMID 27923656

Abstract

The hydroxyl radical (OH) possesses the strongest oxidation potential among reactive oxygen species (ROS). Hydroxyl radicals react nonpreferentially with proteins, lipids, and nucleic acids. Additionally, mitochondrial localization of OH causes dysfunction in the mitochondria. The cytoplasmic targets of OH-induced oxidation are unknown. No cytoplasm-specific OH scavenger is available; thus, elucidating the cytoplasmic targets of OH-induced oxidation has proven difficult. Accordingly, we developed a cytoplasm-specific OH-targeted scavenger, TA293, and a mitochondrion-specific scavenger, mitoTA293. Both TA293 and mitoTA293 scavenged OH but not O

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