MNA cells rely on an elevated antioxidant response through the Xc-/glutathione (GSH) pathway to scavenge lipid hydroperoxides, a by-product formed from excess H 2 O 2 ( We recently discovered in a drug screen that Diphenyleneiodonium chloride (DPI) selectively induces cell death of MNA NB cells in vitro and decreases tumor growth in vivo ( Although precision therapy for individual patients remains limited, combination therapy has the potential to enhance treatment efficacy while potentially reducing reliance on highly toxic chemotherapy ( 2 Results 2.1 MitoQ induces cell death and differentiation in neuroblastoma cells and potentiates DPI-induced cytotoxicity To investigate whether enhanced ROS production mediates the cytotoxic effects of DPI, we used MitoQ, a ROS scavenger that selectively accumulates in mitochondria ( Supplementary Figure S1 )

As of February 2026, no human clinical trials have been registered for 5-Amino-1MQ, and the compound remains classified as an investigational research chemical
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