Nitroxyl (HNO): A Possible Strategy for Fighting Cancer
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Updated: Mar 25, 2026

A General Method for Detecting Nitrosamide Formation in the In Vitro Metabolism of Nitrosamines by Cytochrome P450s
Published on: September 25, 2017
1Department of Medicinal Chemistry, Faculty of Pharmacy, Minia University, P.O. Box: 61519, Minia, Egypt. omarsokkar@yahoo.com.
Abstract:
Nitroxyl (HNO), the one electron reduced form of nitric oxide (NO), shows a very distinct chemistry and biology from that of NO. Chemical profile is characterized by reactions with thiols and thiol proteins such as aldehyde dehydrogenase, glyceraldehyde 3-phosphate dehydrogenase, caspases among others. Biological profile of HNO includes cardioprotective actions especially in cases of heart failure. This short review focuses on the cytotoxic properties for HNO. Nitroxyl was found to be toxic to several cancer cell lines including lung and breast cancers. Critical thiols that control cancer cellular functions might be the target for HNO activity. The anti-tumor actions of HNO donating aspirin is also summarized.
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