0000000000596167

AUTHOR

Giorgio Cantelli-forti

showing 2 related works from this author

Analysis of metabolism and genotoxicity of 5-nitro-3-thiophenecarboxanilides in bacterial, mammalian and human cells

1995

5-nitro-3-thiophenecarboxanilide (NTCA3) was clearly mutagenic in Salmonella typhimurium strains TA98, YG1021 (the strain with elevated nitroreductase) and YG1024 (the strain with elevated O-acetyltransferase) and only slightly mutagenic at the gpt locus in AS52 cells. Clastogenic activity in human lymphocytes was dependent on the length of exposure : detectable chromosome aberrations were observed following a 24 h treatment period, but not after 3 h exposure. S9 increased genotoxicity in both mammalian cells and human lymphocytes. Metabolites formed by incubation of NTCA3 with the different cell systems were examined. A time-course study in cell whole extracts showed that bacterial and mam…

Salmonella typhimuriumHealth Toxicology and MutagenesisMetaboliteLymphocyteIn Vitro TechniquesBiologyToxicologymedicine.disease_causeCell LineAmes testchemistry.chemical_compoundNitroreductaseGeneticsmedicineAnimalsHumansAnilidesGenetics (clinical)Chromosome AberrationsMutagenicity TestsNitroreductasesmedicine.anatomical_structurechemistryBiochemistryCell cultureAcetyltransferaseAcyltransferaseAcetylesteraseGenotoxicityMutagensMutagenesis
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Inflammation-Induced Alteration of Astrocyte Mitochondrial Dynamics Requires Autophagy for Mitochondrial Network Maintenance

2013

Accumulating evidence suggests that changes in the metabolic signature of astrocytes underlie their response to neuroinflammation, but how proinflammatory stimuli induce these changes is poorly understood. By monitoring astrocytes following acute cortical injury, we identified a differential and region-specific remodeling of their mitochondrial network: while astrocytes within the penumbra of the lesion undergo mitochondrial elongation, those located in the core-the area invaded by proinflammatory cells-experience transient mitochondrial fragmentation. In brain slices, proinflammatory stimuli reproduced localized changes in mitochondrial dynamics, favoring fission over fusion. This effect w…

MaleLipopolysaccharidesPhysiologyDnm1l protein mouseInterleukin-1betaNitric Oxide Synthase Type IIMitochondrionAstrocytes/metabolismMitochondrial DynamicsAutophagy-Related Protein 7Mice0302 clinical medicinemetabolism [Reactive Oxygen Species]PhosphorylationCells Culturedcytology [Astrocytes]0303 health sciencesmetabolism [Inflammation]metabolism [Astrocytes]Inflammation/metabolismCytokines/metabolismdrug effects [Mitochondria]Mitochondria/drug effectsMitochondriaCell biologyAstrocytes/drug effectsmedicine.anatomical_structureMicrotubule-Associated Proteins/metabolismPhosphorylationCytokinesmetabolism [Dynamins]Nitric Oxide Synthase Type II/metabolismMicrotubule-Associated ProteinsAstrocytegenetics [Microtubule-Associated Proteins]DynaminsProgrammed cell deathAstrocytes/cytologydrug effects [Astrocytes]Mice TransgenicBiologypharmacology [Interferon-gamma]Proinflammatory cytokine03 medical and health sciencesInterferon-gammametabolism [Interleukin-1beta]reactive astrocytesReactive Oxygen Species/metabolismddc:570Mitochondria/metabolismtoxicity [Lipopolysaccharides]medicineAutophagyAnimalsAutophagy-Related Protein 7Molecular BiologyNeuroinflammation030304 developmental biologypathology [Inflammation]Dynamins/metabolismInflammationdrug effects [Mitochondrial Dynamics]Autophagymetabolism [Cytokines]Interferon-gamma/pharmacologyCell Biologymetabolism [Microtubule-Associated Proteins]Microtubule-Associated Proteins/geneticsMitochondrial Dynamics/drug effectsmetabolism [Mitochondria]metabolism [Nitric Oxide Synthase Type II]Mice Inbred C57BLLipopolysaccharides/toxicityAtg7 protein mouseAstrocytesInterleukin-1beta/metabolismReactive Oxygen Species030217 neurology & neurosurgeryInflammation/pathologyCell Metabolism
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