2011
Therapeutic Implications for Striatal-Enriched Protein Tyrosine Phosphatase (STEP) in Neuropsychiatric Disorders
Goebel-Goody SM, Baum M, Paspalas CD, Fernandez SM, Carty NC, Kurup P, Lombroso PJ. Therapeutic Implications for Striatal-Enriched Protein Tyrosine Phosphatase (STEP) in Neuropsychiatric Disorders. Pharmacological Reviews 2011, 64: 65-87. PMID: 22090472, PMCID: PMC3250079, DOI: 10.1124/pr.110.003053.Peer-Reviewed Original ResearchConceptsStriatal-enriched protein tyrosine phosphataseProtein tyrosine phosphataseTyrosine phosphataseStress-activated protein kinase p38Extracellular regulated kinases 1Brain-specific phosphataseSrc family tyrosine kinase FynProtein kinase p38Tyrosine kinase FynN-methyl-D-aspartate receptorsFragile X syndromeDephosphorylation of ERK1/2Stroke/ischemiaSurface NMDARsKinase FynAlcohol-induced memory lossDiverse neuropsychiatric disordersLocal translationKinase 1Kinase p38STEP expressionX syndromeNeuronal functionDephosphorylationFunction contributesStriatal-Enriched Protein Tyrosine Phosphatase Expression and Activity in Huntington's Disease: A STEP in the Resistance to Excitotoxicity
Saavedra A, Giralt A, Rué L, Xifró X, Xu J, Ortega Z, Lucas JJ, Lombroso PJ, Alberch J, Pérez-Navarro E. Striatal-Enriched Protein Tyrosine Phosphatase Expression and Activity in Huntington's Disease: A STEP in the Resistance to Excitotoxicity. Journal Of Neuroscience 2011, 31: 8150-8162. PMID: 21632937, PMCID: PMC3472648, DOI: 10.1523/jneurosci.3446-10.2011.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrainCalcineurinCell DeathDisease Models, AnimalGene Expression RegulationGene Products, tatHuntingtin ProteinHuntington DiseaseMiceMice, Neurologic MutantsMice, TransgenicMicroinjectionsNerve Tissue ProteinsNuclear ProteinsPhosphorylationProtein Tyrosine Phosphatases, Non-ReceptorQuinolinic AcidSignal TransductionConceptsStriatal-enriched protein tyrosine phosphataseCell deathSTEP expressionPhosphorylation levelsProtein Tyrosine Phosphatase ExpressionProtein tyrosine phosphataseSTEP phosphorylationTyrosine phosphataseProtein kinasePhosphorylated ERK2Phosphatase expressionHuntington's diseaseSTEP proteinMutant huntingtinCalcineurin activityPhosphorylationExon 1STEP protein levelsDisease mouse modelProtein levelsMouse modelMouse striatumTAT-STEPHuntington's disease mouse modelExpression
2009
Extrasynaptic NMDA Receptors Couple Preferentially to Excitotoxicity via Calpain-Mediated Cleavage of STEP
Xu J, Kurup P, Zhang Y, Goebel-Goody SM, Wu PH, Hawasli AH, Baum ML, Bibb JA, Lombroso PJ. Extrasynaptic NMDA Receptors Couple Preferentially to Excitotoxicity via Calpain-Mediated Cleavage of STEP. Journal Of Neuroscience 2009, 29: 9330-9343. PMID: 19625523, PMCID: PMC2737362, DOI: 10.1523/jneurosci.2212-09.2009.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAnimalsBrainCalpainCell DeathCells, CulturedCyclin-Dependent Kinase 5EndocytosisGlutamic AcidIn Vitro TechniquesMiceMice, KnockoutMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3NeuronsP38 Mitogen-Activated Protein KinasesProtein Tyrosine Phosphatases, Non-ReceptorRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateSynapsesConceptsStriatal-enriched protein tyrosine phosphataseCalpain cleavage sitesP38 activationCell deathCleavage siteExtracellular signal-regulated kinase 1/2Protein tyrosine phosphataseSignal-regulated kinase 1/2Promotes cell survivalActivation of p38Tyrosine phosphataseSubstrate bindingKinase 1/2ERK1/2 activationCalpain cleavageCell survivalNovel mechanismCalpain-mediated proteolysisReceptors coupleP38NMDAR stimulationPostsynaptic terminalsValid targetCleavage productsSTEP substratesConceptualizing Autism: The Role for Emergence
Lombroso P, Ogren M, Anderson G. Conceptualizing Autism: The Role for Emergence. Journal Of The American Academy Of Child & Adolescent Psychiatry 2009, 48: 688-691. PMID: 19542823, DOI: 10.1097/chi.0b013e3181a5e3d5.Peer-Reviewed Original ResearchAdolescentAptitudeAutistic DisorderBrainChildComorbidityDiseases in TwinsEpistasis, GeneticGenetic Predisposition to DiseaseGenotypeHumansIntellectual DisabilityMultifactorial InheritancePhenotypeReceptor, Serotonin, 5-HT2AReflex, AbnormalSeizuresSelf-Injurious BehaviorSerotoninStereotyped BehaviorSystems TheoryYoung Adult
2003
Receptor and nonreceptor protein tyrosine phosphatases in the nervous system
Paul S, Lombroso P. Receptor and nonreceptor protein tyrosine phosphatases in the nervous system. Cellular And Molecular Life Sciences 2003, 60: 2465-2482. PMID: 14625689, PMCID: PMC11138652, DOI: 10.1007/s00018-003-3123-7.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrainHumansIntracellular Signaling Peptides and ProteinsMitogen-Activated Protein KinasesNerve Tissue ProteinsProtein Tyrosine Phosphatase, Non-Receptor Type 11Protein Tyrosine Phosphatase, Non-Receptor Type 6Protein Tyrosine PhosphatasesProtein Tyrosine Phosphatases, Non-ReceptorReceptor-Like Protein Tyrosine Phosphatases, Class 2Receptor-Like Protein Tyrosine Phosphatases, Class 5Receptors, Cell SurfaceSignal TransductionConceptsProtein tyrosineNonreceptor protein tyrosineDual-specific phosphataseCellular signaling pathwaysNervous systemSignaling pathwaysCellular localizationPhysiological functionsFunctional rolePTPCentral nervous systemIntracellular mechanismsTyrosineImportant rolePhosphatasePathwayRoleLocalizationFunctionReceptors
2002
Genetics of Childhood Disorders: XLIII. Autism, Part 2: Neural Foundations
SCHULTZ R, KLIN A, Lombroso P. Genetics of Childhood Disorders: XLIII. Autism, Part 2: Neural Foundations. Journal Of The American Academy Of Child & Adolescent Psychiatry 2002, 41: 1259-1262. PMID: 12364850, DOI: 10.1097/00004583-200210000-00018.Peer-Reviewed Original ResearchGenetics of Childhood Disorders: XXXV. Autoimmune Disorders, Part 8: Animal Models for Noninflammatory Autoimmune Disorders of the Brain
HALLETT J, KIESSLING L, Lombroso P. Genetics of Childhood Disorders: XXXV. Autoimmune Disorders, Part 8: Animal Models for Noninflammatory Autoimmune Disorders of the Brain. Journal Of The American Academy Of Child & Adolescent Psychiatry 2002, 41: 223-225. PMID: 11837413, DOI: 10.1097/00004583-200202000-00017.Peer-Reviewed Original Research
2001
Genetics of Childhood Disorders: XXVI. Williams Syndrome and Brain–Behavior Relationships
SCHULTZ R, GRELOTTI D, POBER B, Lombroso P. Genetics of Childhood Disorders: XXVI. Williams Syndrome and Brain–Behavior Relationships. Journal Of The American Academy Of Child & Adolescent Psychiatry 2001, 40: 606-609. PMID: 11349707, DOI: 10.1097/00004583-200105000-00022.Peer-Reviewed Original ResearchGenetics of Central Nervous System Developmental Disorders
Naegele J, Lombroso P. Genetics of Central Nervous System Developmental Disorders. Child And Adolescent Psychiatric Clinics Of North America 2001, 10: 225-239. PMID: 11351796, DOI: 10.1016/s1056-4993(18)30055-5.Peer-Reviewed Original Research
1997
STEP: a family of brain-enriched PTPs. Alternative splicing produces transmembrane, cytosolic and truncated isoforms.
Bult A, Zhao F, Dirkx R, Raghunathan A, Solimena M, Lombroso P. STEP: a family of brain-enriched PTPs. Alternative splicing produces transmembrane, cytosolic and truncated isoforms. European Journal Of Cell Biology 1997, 72: 337-44. PMID: 9127733.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceAnimalsBase SequenceBlotting, NorthernBlotting, WesternBrainCalcium-Binding ProteinsCalnexinCHO CellsCricetinaeFemaleFluorescent Antibody Technique, IndirectMembrane ProteinsMolecular Sequence DataProtein Tyrosine PhosphatasesProtein Tyrosine Phosphatases, Non-ReceptorRatsSynaptophysinTransfectionConceptsProtein tyrosine phosphataseCatalytic phosphatase domainProtein tyrosine kinase familyHydrophobic amino acid sequenceAlternative splicing mechanismAmino acid sequencePrevious biochemical studiesTyrosine kinase familyStop codon upstreamPhosphatase domainCytosolic variantAlternative splicingMembrane compartmentsTyrosine phosphataseKinase familySplicing mechanismSubcellular localizationCytosolic proteinsAcid sequenceN-terminusInactive variantContinuous sucrose gradientSTEP isoformsPolyproline domainEndoplasmic reticulum
1996
STEP61: A Member of a Family of Brain-Enriched PTPs Is Localized to the Endoplasmic Reticulum
Bult A, Zhao F, Dirkx R, Sharma E, Lukacsi E, Solimena M, Naegele J, Lombroso P. STEP61: A Member of a Family of Brain-Enriched PTPs Is Localized to the Endoplasmic Reticulum. Journal Of Neuroscience 1996, 16: 7821-7831. PMID: 8987810, PMCID: PMC6579237, DOI: 10.1523/jneurosci.16-24-07821.1996.Peer-Reviewed Original ResearchConceptsNovel N-terminal regionEnzymatic activityEndoplasmic reticulumPutative transmembrane domainsIntrinsic membrane proteinsExtended N-terminusAmino acid sequenceN-terminal regionDistinctive intracellular distributionsProtein tyrosineCytosolic variantTransmembrane domainMembrane compartmentsMembrane proteinsAcid sequenceSubcellular fractionationN-terminusRecombinant proteinsTransfection experimentsSTEP61Intracellular distributionProteinReticulumImmunocytochemical labelingFamily
1995
Cellular and molecular characterization of a brain-enriched protein tyrosine phosphatase
Boulanger L, Lombroso P, Raghunathan A, During M, Wahle P, Naegele. Cellular and molecular characterization of a brain-enriched protein tyrosine phosphatase. Journal Of Neuroscience 1995, 15: 1532-1544. PMID: 7869116, PMCID: PMC6577844, DOI: 10.1523/jneurosci.15-02-01532.1995.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, MonoclonalAxonsBlotting, WesternBrainCerebral CortexCorpus StriatumImmunohistochemistryIn Situ HybridizationMiceMice, Inbred BALB CNeuronsPeptide FragmentsProtein Tyrosine PhosphatasesProtein Tyrosine Phosphatases, Non-ReceptorRatsRNA, MessengerSynaptic TransmissionTissue DistributionConceptsSubstantia nigraAdult rat brainCombination of immunocytochemistrySitu hybridization studiesProjection neuronsBasal gangliaCaudate putamenPresynaptic axonsStriatal enriched protein tyrosine phosphataseRat brainBrain regionsImmunocytochemical stainingLesion experimentsWestern blotLesion studiesWestern blottingMonoclonal antibodiesMRNA expression patternsImmunoreactive formsImmunoreactive bandsProtein tyrosine phosphataseNigraSitu hybridizationHybridization studiesSTEP isoforms
1993
A protein tyrosine phosphatase expressed within dopaminoceptive neurons of the basal ganglia and related structures
Lombroso P, Naegele, Sharma E, Lerner M. A protein tyrosine phosphatase expressed within dopaminoceptive neurons of the basal ganglia and related structures. Journal Of Neuroscience 1993, 13: 3064-3074. PMID: 8331384, PMCID: PMC6576687, DOI: 10.1523/jneurosci.13-07-03064.1993.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBasal GangliaBase SequenceBlotting, WesternBrainChromatography, AffinityCorpus StriatumDopamine and cAMP-Regulated Phosphoprotein 32FemaleGene ExpressionImmune SeraImmunohistochemistryKineticsMaleMolecular Sequence DataMolecular WeightNerve Tissue ProteinsNeuronsOligodeoxyribonucleotidesOligonucleotides, AntisenseOrgan SpecificityPhosphoproteinsPolymerase Chain ReactionProtein Tyrosine PhosphatasesProtein Tyrosine Phosphatases, Non-ReceptorRatsReceptors, DopamineRecombinant Fusion Proteins
1991
Molecular characterization of a protein-tyrosine-phosphatase enriched in striatum.
Lombroso P, Murdoch G, Lerner M. Molecular characterization of a protein-tyrosine-phosphatase enriched in striatum. Proceedings Of The National Academy Of Sciences Of The United States Of America 1991, 88: 7242-7246. PMID: 1714595, PMCID: PMC52270, DOI: 10.1073/pnas.88.16.7242.Peer-Reviewed Original ResearchConceptsDeduced amino acid sequenceAmino acid consensus sequenceAmino acid sequenceApparent molecular massRat striatal cDNA librarySingle geneVitro translationCDNA clonesStrong homologyCDNA libraryCytoplasmic membraneAcid sequenceRNA transcriptsN-terminusMolecular characterizationRNA analysisMolecular massAmino acidsProteinPhosphataseMRNASequenceHomologyGenesTerminus