0000000000549198

AUTHOR

T Fischer

showing 2 related works from this author

Histone deacetylase inhibition by valproic acid down-regulates c-FLIP/CASH and sensitizes hepatoma cells towards CD95-and TRAIL receptor-mediated apo…

2005

Hepatocellular carcinoma (HCC) is highly resistant to chemotherapy, leading to a poor prognosis of advanced disease. Inhibitors of histone deacetylase (HDACi) induce re-differentiation in tumor cells and thereby re-establish sensitivity towards apoptotic stimuli. HDACi are entering the clinical stage of tumor treatment, and several substances are currently being tested in clinical trials to prove their efficacy in the treatment of leukemias and solid tumors. In this study, we investigated the impact of the HDACi valproic acid (VA) on TRAIL- and CD95-mediated apoptosis in hepatoma cells, as well as its sensitizing effect on a chemotherapeutic agent. Treatment of HepG2 cells with VA increased…

Cancer ResearchProgrammed cell deathCarcinoma Hepatocellularmedicine.medical_treatmentCellCASP8 and FADD-Like Apoptosis Regulating ProteinDown-RegulationCaspase 3ApoptosisBiologyReceptors Tumor Necrosis FactorTNF-Related Apoptosis-Inducing LigandAntineoplastic Combined Chemotherapy ProtocolsmedicineHumansfas ReceptorEpirubicinChemotherapyMembrane GlycoproteinsCaspase 3Tumor Necrosis Factor-alphaValproic AcidLiver NeoplasmsIntracellular Signaling Peptides and ProteinsGeneral MedicineCell cycleFas receptorHistone Deacetylase Inhibitorsmedicine.anatomical_structureOncologyApoptosisDrug Resistance NeoplasmCaspasesCancer researchHistone deacetylaseApoptosis Regulatory Proteins
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Metabolic activity of fresh and cryopreserved cynomolgus monkey (Macaca fascicularis) hepatocytes

2000

1. The effect of cryopreservation on the metabolic capacity of monkey hepatocytes over 4 h in suspension and 24 h in culture was determined. Hepatocytes were diluted in a buffer containing 10% DMSO and frozen in a computer-controlled chamber. 2. Initial ethoxyresorufin and ethoxycoumarin O-deethylase (ECOD) activities were the same in fresh and cryopreserved (CP) hepatocytes. ECOD activity in suspensions declined over 4 h but was the same in fresh and CP hepatocytes. 3. The formation of testosterone hydroxy (OHT) metabolites (namely 6beta-OHT, 2beta-OHT, 16beta-OHT, 16alpha-OHT, 15beta-OHT, 2alpha-OHT and 6beta-OHT) was unaffected by cryopreservation. The loss of OHT activities over 4 h in …

Malegenetic structuresCell SurvivalHealth Toxicology and MutagenesisCell SeparationIn Vitro TechniquesBiologyToxicologyBiochemistryCryopreservationchemistry.chemical_compoundCytochrome P-450 Enzyme SystemCell AdhesionmedicineAnimalsCytotoxicityIncubationCells CulturedCryopreservationPharmacologychemistry.chemical_classificationL-Lactate DehydrogenaseGeneral MedicineGlutathioneGlutathioneMolecular biologyeye diseasesIn vitroMacaca fascicularisEnzymemedicine.anatomical_structurechemistryBiochemistryCell cultureHepatocyteSteroid HydroxylasesHepatocytesAryl Hydrocarbon HydroxylasesXenobiotica
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