2015
BDNF Induces Striatal-Enriched Protein Tyrosine Phosphatase 61 Degradation Through the Proteasome
Saavedra A, Puigdellívol M, Tyebji S, Kurup P, Xu J, Ginés S, Alberch J, Lombroso PJ, Pérez-Navarro E. BDNF Induces Striatal-Enriched Protein Tyrosine Phosphatase 61 Degradation Through the Proteasome. Molecular Neurobiology 2015, 53: 4261-4273. PMID: 26223799, PMCID: PMC4738169, DOI: 10.1007/s12035-015-9335-7.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrain-Derived Neurotrophic FactorCerebral CortexExtracellular Signal-Regulated MAP KinasesHippocampusMembrane PotentialsMiceNeostriatumNerve Growth FactorNeuronsNeurotrophin 3Phospholipase C gammaPhosphorylationProteasome Endopeptidase ComplexProtein Tyrosine Phosphatases, Non-ReceptorProteolysisReceptors, N-Methyl-D-AspartateUbiquitinationConceptsBrain-derived neurotrophic factorSTEP61 levelsCortical neuronsUbiquitin-proteasome systemStriatal-enriched protein tyrosine phosphatasePrimary cortical neuronsLevels/activitiesNerve growth factorNeurotrophic factorNeurotrophin-3Cultured striatalHippocampal neuronsCell depolarizationGrowth factorERK1/2 phosphorylationNeuronsStriatalTyrosine kinasePhospholipase C-gammaC gammaDifferent mechanismsLevelsBlockadeGluN2BProtein tyrosine phosphatase
2010
The role of STEP in Alzheimer's disease
Kurup P, Zhang Y, Venkitaramani DV, Xu J, Lombroso PJ. The role of STEP in Alzheimer's disease. Channels 2010, 4: 347-350. PMID: 20699650, PMCID: PMC3230511, DOI: 10.4161/chan.4.5.12910.Peer-Reviewed Original ResearchConceptsN-methyl-D-aspartate (NMDA) type glutamate receptorsAlzheimer's diseaseProtein tyrosine Phosphatase 61AD prefrontal cortexAD mouse modelType glutamate receptorsGlutamate receptor traffickingNeuronal surface membraneNMDAR internalizationAβ treatmentPutative causative agentGlutamate receptorsMouse modelCulture resultsGluN1/Prefrontal cortexDiseaseNeuronal membranesNMDAR endocytosisAdditional studiesAβCausative agentSurface expressionUbiquitin-proteasome systemReceptor complexAβ-Mediated NMDA Receptor Endocytosis in Alzheimer's Disease Involves Ubiquitination of the Tyrosine Phosphatase STEP61
Kurup P, Zhang Y, Xu J, Venkitaramani DV, Haroutunian V, Greengard P, Nairn AC, Lombroso PJ. Aβ-Mediated NMDA Receptor Endocytosis in Alzheimer's Disease Involves Ubiquitination of the Tyrosine Phosphatase STEP61. Journal Of Neuroscience 2010, 30: 5948-5957. PMID: 20427654, PMCID: PMC2868326, DOI: 10.1523/jneurosci.0157-10.2010.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAlzheimer DiseaseAmyloid beta-PeptidesAnimalsCell LineCells, CulturedCerebral CortexEndocytosisHumansIn Vitro TechniquesMiceMice, KnockoutMice, TransgenicMiddle AgedNeuronsProtein Tyrosine Phosphatases, Non-ReceptorRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateUbiquitinated ProteinsUbiquitinationConceptsAlzheimer's diseaseAbeta treatmentNR2B subunitProtein tyrosine Phosphatase 61Cognitive deficitsNMDA receptor internalizationHuman AD brainsMouse cortical culturesNR1/NR2B receptorsNMDA receptor endocytosisIonotropic glutamate receptorsTyrosine phosphatase STEP61AD brainCortical slicesCortical culturesGlutamate receptorsNR2B receptorsPostsynaptic terminalsPrefrontal cortexNeuronal membranesElevated levelsCortexReceptor internalizationUbiquitin-proteasome systemStep activity