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 )
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Because we found this transporter earlier and knew how to block the entry of glutathione, we already had the tools necessary to investigate its role in cancer metastasis, he says
The wrinkle (no pun intended) is that levels crash as we get older
Vitamin B12 is naturally found in animal products such as meat, fish, poultry, eggs, and dairy products
Modulate Metalloproteinases (MMPs): GHK-Cu helps regulate the enzymes involved in the breakdown and remodeling of the extracellular matrix, ensuring a balanced repair process
doi:10.1021/bi901180v