Search results for "Tumor Suppressor p53-Binding Protein 1"

showing 3 items of 3 documents

DNA strand breaks induced by nuclear hijacking of neuronal NOS as an anti-cancer effect of 2-methoxyestradiol

2015

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.

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 Paper
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Compromised repair of radiation-induced DNA double-strand breaks in Fanconi anemia fibroblasts in G2

2020

Fanconi anemia (FA) is a rare chromosomal instability syndrome with various clinical features and high cancer incidence. Despite being a DNA repair disorder syndrome and a frequently observed clinical hypersensitivity of FA patients towards ionizing radiation, the experimental evidence regarding the efficiency of radiation-induced DNA double-strand break (DSB) repair in FA is very controversial. Here, we performed a thorough analysis of the repair of radiation-induced DSBs in G1 and G2 in FA fibroblasts of complementation groups A, C, D1 (BRCA2), D2, E, F, G and P (SLX4) in comparison to normal human lung and skin fibroblasts. γH2AX, 53BP1, or RPA foci quantification after X-irradiation was…

DNA End-Joining RepairBiologyBiochemistryFanconi Anemia Complementation Group F ProteinHistonesRecombinases03 medical and health scienceschemistry.chemical_compound0302 clinical medicineFanconi anemiaChromosome instabilitymedicineHumansDNA Breaks Double-StrandedFanconi Anemia Complementation Group G ProteinMolecular BiologyCells Cultured030304 developmental biologyBRCA2 ProteinChromosome Aberrations0303 health sciencesFanconi Anemia Complementation Group A ProteinFanconi Anemia Complementation Group D2 ProteinX-RaysCell CycleFanconi Anemia Complementation Group C ProteinRecombinational DNA RepairChromosomeDNACell BiologyFibroblastsCell cyclemedicine.diseaseFanconi Anemia Complementation Group E ProteinComplementationKineticsenzymes and coenzymes (carbohydrates)Fanconi Anemiachemistry030220 oncology & carcinogenesisPremature chromosome condensationMutationCancer researchChromatidTumor Suppressor p53-Binding Protein 1DNADNA Repair
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Three-dimensional invasion of human glioblastoma cells remains unchanged by X-ray and carbon ion irradiation in vitro.

2012

Purpose Cell invasion represents one of the major determinants that treatment has failed for patients suffering from glioblastoma. Contrary findings have been reported for cell migration upon exposure to ionizing radiation. Here, the migration and invasion capability of glioblastoma cells on and in collagen type I were evaluated upon irradiation with X-rays or carbon ions. Methods and Materials Migration on and invasion in collagen type I were evaluated in four established human glioblastoma cell lines exposed to either X-rays or carbon ions. Furthermore, clonogenic radiation survival, proliferation (5-bromo-2-deoxyuridine positivity), DNA double-strand breaks (γH2AX/53BP1-positive foci), a…

MAPK/ERK pathwayCancer ResearchCell signalingMMP2MAP Kinase Kinase 4p38 Mitogen-Activated Protein KinasesCollagen Type IExtracellular matrixHistonesPhosphatidylinositol 3-KinasesCell MovementMedicineHumansRadiology Nuclear Medicine and imagingDNA Breaks Double-StrandedNeoplasm InvasivenessClonogenic assayPI3K/AKT/mTOR pathwayCell ProliferationRadiationbusiness.industryCell growthBrain NeoplasmsIntegrin beta1Intracellular Signaling Peptides and ProteinsCell migrationCarbonOncologyBromodeoxyuridineImmunologyCancer researchbusinessCell Migration AssaysGlioblastomaTumor Suppressor p53-Binding Protein 1International journal of radiation oncology, biology, physics
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