Reactive oxygen species-sensitive cellular macromolecules (ROS-sensitive macromolecules)

Reactive oxygen species-sensitive cellular macromolecules encompass a diverse group of biological entities, including DNA, proteins, and lipids, that are susceptible to chemical modification by reactive oxygen species (ROS) such as superoxide, hydroxyl radicals, and hydrogen peroxide. Under physiological conditions, these interactions facilitate essential signaling pathways and redox-sensitive gene expression; however, excessive ROS production leads to oxidative stress, causing structural damage like lipid peroxidation, protein carbonylation, and DNA strand breaks (PMID: 28239925). This damage is a hallmark of various pathologies, including cancer, neurodegenerative disorders, and cardiovascular diseases (PMID: 30116495). While not a single therapeutic target, these macromolecules are the focus of antioxidant strategies and the development of ROS-responsive prodrugs designed to release active agents specifically in high-oxidative-stress environments (PMID: 31110256). Effective therapeutic intervention must balance the prevention of pathological damage with the preservation of vital redox-sensitive signaling processes.

Other names

ROS-responsive macromoleculesOxidative stress targetsRedox-sensitive biomoleculesOxidizable cellular components

Neutralization of reactive oxygen species to prevent oxidative modification of cellular components or utilization of ROS-mediated chemical changes for site-specific drug activation.