6533b7d7fe1ef96bd1268e38
RESEARCH PRODUCT
DNA strand breaks induced by nuclear hijacking of neuronal NOS as an anti-cancer effect of 2-methoxyestradiol
Maciej WnukAntonella Marino GammazzaAlicja Kuban-jankowskaAgnieszka DacaFrancesco CappelloMichal A. ZmijewskiIwona RzeszutekMichal WozniakMagdalena M. GorskaMonika GorzynikAnna Lewinskasubject
Pathologymedicine.medical_specialtyneuronal nitric oxide synthaseCell cycle checkpoint2-methoxyestradiolDNA damageAntineoplastic AgentsApoptosisBone NeoplasmsNitric Oxide Synthase Type Imedicine.disease_causeNitric OxideNitric oxidechemistry.chemical_compoundReactive nitrogen specieCell Line TumormedicineHumans2-MethoxyestradiolReactive nitrogen speciesCytokinesisOsteosarcomaEstradiolbusiness.industryDNA BreaksIntracellular Signaling Peptides and ProteinsCancermedicine.diseaseReactive Nitrogen SpeciesG2 Phase Cell Cycle CheckpointsOxidative StressOncologychemistryApoptosis2-methoxyestradiol; Neuronal nitric oxide synthase; Nitric oxide; Osteosarcoma; Reactive nitrogen species; OncologyCancer researchM Phase Cell Cycle CheckpointsbusinessTumor Suppressor p53-Binding Protein 1Oxidative stressmedicine.drugResearch Paperdescription
2-Methoxyestradiol (2-ME) is a physiological metabolite of 17β-estradiol. At pharmacological concentrations, 2-ME inhibits colon, breast and lung cancer in tumor models. Here we investigated the effect of physiologically relevant concentrations of 2-ME in osteosarcoma cell model. We demonstrated that 2-ME increased nuclear localization of neuronal nitric oxide synthase, resulting in nitro-oxidative DNA damage. This in turn caused cell cycle arrest and apoptosis in osteosarcoma cells. We suggest that 2-ME is a naturally occurring hormone with potential anti-cancer properties.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-01-01 |