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  • In pursuit of feedback acti...
    Xu, Bi-Xin; Hu, Tian-Yu; Du, Jin-Biao; Xie, Tao; Xu, Ya-Wen; Jin, Xin; Xu, Si-Tao; Jin, Hao-Wen; Wang, Guangji; Wang, Jiankun; Zhen, Le

    Redox biology, 06/2024, Letnik: 72
    Journal Article

    Redox-responsive hydropersulfide prodrugs are designed to enable a more controllable and efficient hydropersulfide (RSSH) supply and to thoroughly explore their biological and therapeutic applications in oxidative damage. To obtain novel activation patterns triggered by redox signaling, we focused on NAD(P)H: quinone acceptor oxidoreductase 1 (NQO1), a canonical antioxidant enzyme, and designed NQO1-activated RSSH prodrugs. We also performed a head-to-head comparison of two mainstream structural scaffolds with solid quantitative analysis of prodrugs, RSSH, and metabolic by-products by LC-MS/MS, confirming that the perthiocarbamate scaffold was more effective in intracellular prodrug uptake and RSSH production. The prodrug was highly potent in oxidative stress management against cisplatin-induced nephrotoxicity. Strikingly, this prodrug possessed potential feedback activation properties by which the delivered RSSH can further escalate the prodrug activation via NQO1 upregulation. Our strategy pushed RSSH prodrugs one step further in the pursuit of efficient release in biological matrices and improved druggability against oxidative stress. •Prodrugs release persulfide via enzymatic redox reaction rather than chemical ones.•Two mainstream prodrug scaffolds are compared to optimize persulfide release.•Intracellular persulfide and endogenous sulfur species are quantified.•Prodrug 1e efficiently reversed the toxicity and ROS overload caused by cisplatin.•The releasing persulfide boosts prodrug activation via redox enzyme upregulation.