Inhibition of the tyrosine phosphatase STEP61 restores BDNF expression and reverses motor and cognitive deficits in phencyclidine-treated mice
Xu J, Kurup P, Baguley TD, Foscue E, Ellman JA, Nairn AC, Lombroso PJ. Inhibition of the tyrosine phosphatase STEP61 restores BDNF expression and reverses motor and cognitive deficits in phencyclidine-treated mice. Cellular And Molecular Life Sciences 2015, 73: 1503-1514. PMID: 26450419, PMCID: PMC4801664, DOI: 10.1007/s00018-015-2057-1.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBenzothiepinsBrain-Derived Neurotrophic FactorCells, CulturedCognition DisordersCREB-Binding ProteinDown-RegulationMaleMiceMice, Inbred C57BLMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3Motor ActivityNeuronsPhencyclidinePhosphorylationProtein Tyrosine PhosphatasesReceptors, N-Methyl-D-AspartateRNA InterferenceUbiquitinationConceptsBrain-derived neurotrophic factorBDNF expressionProtein tyrosine Phosphatase 61Cognitive deficitsPCP-induced reductionPCP-treated micePhencyclidine-treated micePCP-induced increasePCP-induced hyperlocomotionTyrosine phosphatase STEP61STEP61 levelsBDNF transcriptionNeurotrophic factorNMDAR antagonistsCortical culturesCortical neuronsCNS disordersSynaptic strengtheningPsychotic episodeRodent modelsBrain disordersPharmacologic inhibitionSTEP61SchizophreniaCognitive functioningStriatal‐enriched protein tyrosine phosphatase regulates the PTPα/Fyn signaling pathway
Xu J, Kurup P, Foscue E, Lombroso PJ. Striatal‐enriched protein tyrosine phosphatase regulates the PTPα/Fyn signaling pathway. Journal Of Neurochemistry 2015, 134: 629-641. PMID: 25951993, PMCID: PMC4516628, DOI: 10.1111/jnc.13160.Peer-Reviewed Original ResearchConceptsProtein tyrosine phosphataseProtein kinase ARegulation of FynTyrosine phosphataseReceptor-type protein tyrosine phosphatase alphaProtein tyrosine phosphatase alphaStriatal-enriched protein tyrosine phosphataseRegulatory tyrosine residuesActivation of FynTyrosine kinase FynRegulatory tyrosineProtein tyrosinePTPαKinase FynSynaptic membranesKinase ATyrosine residuesFyn activityFynNovel substratePrimary neuronal culturesSTEP61Synergistic regulationMolecular techniquesNovel mechanism