2019
Loss of STEP61 couples disinhibition to N-methyl-d-aspartate receptor potentiation in rodent and human spinal pain processing
Dedek A, Xu J, Kandegedara CM, Lorenzo LÉ, Godin AG, De Koninck Y, Lombroso PJ, Tsai EC, Hildebrand ME. Loss of STEP61 couples disinhibition to N-methyl-d-aspartate receptor potentiation in rodent and human spinal pain processing. Brain 2019, 142: 1535-1546. PMID: 31135041, PMCID: PMC6536915, DOI: 10.1093/brain/awz105.Peer-Reviewed Original ResearchConceptsN-methyl-D-aspartate receptorsLaminae INMDAR responsesDorsal horn synapsesSpinal pain processingNerve injury modelSpinal dorsal hornSynaptic NMDAR responsesTyrosine phosphatase STEP61Loss of inhibitionBehavioral hypersensitivityInflammatory painNeuropathic painDorsal hornPain statesPathological painPain targetsChronic painPain processingInjury modelAssociated downregulationRodent modelsReceptor potentiationPainSTEP61 activity
2010
Aβ-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