Tumor cells have decreased ability to metabolize H2O2: Implications for pharmacological ascorbate in cancer therapy

Ascorbate (AscH−) functions as a versatile reducing agent. At pharmacological doses (P-AscH−; [plasma AscH−] ≥≈20 mM), achievable through intravenous delivery, oxidation of P-AscH− can produce a high flux of H2O2 in tumors. Catalase is the major enzyme for detoxifying high concentrations of H2O2. We...

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Bibliographic Details
Main Authors: Claire M. Doskey, Visarut Buranasudja, Brett A. Wagner, Justin G. Wilkes, Juan Du, Joseph J. Cullen, Garry R. Buettner
Format: Article
Language:English
Published: Elsevier 2016-12-01
Series:Redox Biology
Online Access:http://www.sciencedirect.com/science/article/pii/S2213231716302634