0000000000365469

AUTHOR

Germaine Dorange

showing 2 related works from this author

Activation of MAP kinase signaling pathway in the mussel Mytilus galloprovincialis as biomarker of environmental pollution

2010

Stimulation of MAP kinase signal transduction pathway by various stressful stimuli was investigated in the marine bivalve Mytilus galloprovincialis. Analyses were performed in animals exposed in laboratory to selected pollutants and in mussels collected in winter and summer along the eastern Adriatic coast (Croatia). Effects of oxidative stress, induced by tributyltin, hydrogen peroxide and water soluble fraction of diesel fuel on the activation/phosphorylation of the three Mitogen-Activated Protein Kinases (MAPKs) p38, JNK and ERK using a newly developed ELISA procedure were evaluated. MAP kinase activation was analyzed 1 h after exposure of mussels to chemical agents, and after recovery p…

MAPK/ERK pathwaymussel Mytilus galloprovincialisMAP Kinase Kinase 4MAP Kinase Signaling SystemHealth Toxicology and Mutagenesisp38 mitogen-activated protein kinasesEnvironmental pollutionEnzyme-Linked Immunosorbent Assaypollution ; biomarker ; MAP kinase ; mussel ; Mytilus galloprovincialis ; tributyltin ; diesel oil ; hydrogen peroxide010501 environmental sciencesAquatic Science01 natural sciencesp38 Mitogen-Activated Protein Kinases03 medical and health scienceschemistry.chemical_compoundAnimals14. Life underwaterExtracellular Signal-Regulated MAP Kinases030304 developmental biology0105 earth and related environmental sciencesMytilus0303 health sciencesbiologyKinaseMusselHydrogen Peroxidebiology.organism_classificationMytilusCell biologyEnzyme Activationchemistry13. Climate actionEnvironmental chemistryMitogen-activated protein kinaseTributyltinbiology.proteinbiomarkerMAP kinaseMitogen-Activated Protein KinasesTrialkyltin Compoundsenvironmental pollutionBiomarkersGasolineWater Pollutants Chemical
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Effects of a phycotoxin, okadaic acid, on oyster heart cell survival

2008

Okadaic acid (OA) is a dinoflagellate toxin which accumulates in shellfish producing diarrhetic shellfish poisoning (DSP) in humans. It was found that OA is a highly selective inhibitor of protein phosphatase types 1 (PP1) and 2A (PP2A) which produces a marked increase in phosphorylation of several proteins, including p38 mitogen-activated protein (MAP) kinase. The cytotoxicity attributed to OA and the effects on p38 MAP kinase and calcium current were examined in the oyster Crassostrea gigas in this study. Data showed that p38 MAP kinase is strongly expressed in oyster heart and that OA bioaccumulated in cultured heart cells. Hence the effects of OA was tested in vitro and in vivo on oyste…

ChronotropicOysterbiologyKinaseHealth Toxicology and MutagenesisPhosphataseProtein phosphatase 2Okadaic acidPollutionMolecular biologychemistry.chemical_compoundchemistrybiology.animalEnvironmental ChemistryDiarrhetic shellfish poisoningProtein kinase CToxicological & Environmental Chemistry
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