2024
Alternative substitutions of N332 in HIV-1AD8 gp120 differentially affect envelope glycoprotein function and viral sensitivity to broadly neutralizing antibodies targeting the V3-glycan
Jeffy J, Parthasarathy D, Ahmed S, Cervera-Benet H, Xiong U, Harris M, Mazurov D, Pickthorn S, Herschhorn A. Alternative substitutions of N332 in HIV-1AD8 gp120 differentially affect envelope glycoprotein function and viral sensitivity to broadly neutralizing antibodies targeting the V3-glycan. MBio 2024, 15: e02686-23. PMID: 38470051, PMCID: PMC11005340, DOI: 10.1128/mbio.02686-23.Peer-Reviewed Original ResearchConceptsHIV-1 strainsHIV-1V3-glycanEnv antigensHIV-1 infection <i>inNeutralizing antibodiesHost CD4<sup>+</sup> T cellsCirculating HIV-1 strainsEnvelope glycoproteinCD4<sup>+</sup> T cellsHuman immunodeficiency virus type IHIV-1 envelope glycoproteinBlock HIV-1 infectionHIV-1 Env trimerHIV-1 isolatesHIV-1 infectionGp120 V3 loopTarget of neutralizing antibodiesHIV-1 entryCell surface expressionLevels of cell surface expressionSensitivity to antibodiesN332 glycanSoluble CD4Gp120 shedding
2022
High cell surface expression and peptide binding affinity of HLA-DQA1*05:03, a susceptible allele of neuromyelitis optica spectrum disorders (NMOSD)
Beppu S, Kinoshita M, Wilamowski J, Suenaga T, Yasumizu Y, Ogawa K, Ishikura T, Tada S, Koda T, Murata H, Shiraishi N, Sugiyama Y, Kihara K, Sugimoto T, Arase H, Standley D, Okuno T, Mochizuki H. High cell surface expression and peptide binding affinity of HLA-DQA1*05:03, a susceptible allele of neuromyelitis optica spectrum disorders (NMOSD). Scientific Reports 2022, 12: 106. PMID: 34997058, PMCID: PMC8742014, DOI: 10.1038/s41598-021-04074-1.Peer-Reviewed Original ResearchConceptsNeuromyelitis optica spectrum disorderPeptide major histocompatibility complexDevelopment of neuromyelitis optica spectrum disorderAnti-aquaporin-4HLA-DQA1Associated with neuromyelitis optica spectrum disordersHigh cell surface expressionJapanese patient cohortPresence of pathogenic autoantibodiesCell surface expression levelsRelapsing autoimmune diseaseHLA-DQA1 allelesCell surface expressionSurface expression levelsAQP4 peptidesMajor histocompatibility complexAnti-aquaporinPathogenic autoantibodiesHLA-DQPatient cohortAutoimmune diseasesPathogenic roleSurface expressionIn silico 3D structure modelingHistocompatibility complex
2021
Keratin 1 as a cell-surface receptor in cancer
Ogunnigbagbe O, Bunick CG, Kaur K. Keratin 1 as a cell-surface receptor in cancer. Biochimica Et Biophysica Acta (BBA) - Reviews On Cancer 2021, 1877: 188664. PMID: 34890750, PMCID: PMC8818032, DOI: 10.1016/j.bbcan.2021.188664.Peer-Reviewed Original ResearchConceptsImportant cellular functionsGlycine-rich loopType II keratinsCell surface receptorsReceptor-mediated endocytosisKeratin 1Cell surface expressionCellular functionsC-terminusCentral domainEpithelial cell markersCancer progressionIntermediate filamentsFibrous proteinsCancer cellsK1 expressionOxidative stressCancerous cellsCell markersImmune evasionCellsExpressionKeratinCsk1EndocytosisIntegrin intra-heterodimer affinity inversely correlates with integrin activatability
Sun G, Guillon E, Holley SA. Integrin intra-heterodimer affinity inversely correlates with integrin activatability. Cell Reports 2021, 35: 109230. PMID: 34107244, PMCID: PMC8227800, DOI: 10.1016/j.celrep.2021.109230.Peer-Reviewed Original ResearchConceptsFluorescence cross-correlation spectroscopyCell surface expressionHeterodimeric cell surface receptorsPoor cell surface expressionCell surface stabilityRobust cell surface expressionExtracellular matrix proteinsCell surface receptorsZebrafish somitogenesisSurface expressionCross-correlation spectroscopyFluorescence resonance energy transferIntegrin activationΒ-subunitIntegrin heterodimersFibronectin matrixMatrix proteinsVivo contextConformational changesCell adhesionResonance energy transferSurface receptorsIntegrin αvβ1Biophysical measurementsIntegrins
2020
Cytidine Monophosphate N-Acetylneuraminic Acid Synthetase and Solute Carrier Family 35 Member A1 Are Required for Reovirus Binding and Infection
Urbanek K, Sutherland DM, Orchard RC, Wilen CB, Knowlton JJ, Aravamudhan P, Taylor GM, Virgin HW, Dermody TS. Cytidine Monophosphate N-Acetylneuraminic Acid Synthetase and Solute Carrier Family 35 Member A1 Are Required for Reovirus Binding and Infection. Journal Of Virology 2020, 95: 10.1128/jvi.01571-20. PMID: 33087464, PMCID: PMC7944449, DOI: 10.1128/jvi.01571-20.Peer-Reviewed Original ResearchConceptsSialic acid expressionMicroglial cellsCell surface expressionReovirus-induced cell deathReovirus infectionSialic acidMurine microglial BV2 cellsReovirus-induced diseaseMember A1Microglial BV2 cellsSurface expressionMurine microglial cellsCell deathReovirus bindingBV2 cellsViral tropismInfectionHost genesLow-level bindingCell surface receptorsHost factorsCell surfaceReceptorsSialic acid synthesisSurface receptors
2019
Transcriptional down-regulation of ccr5 in a subset of HIV+ controllers and their family members
Gonzalo-Gil E, Rapuano PB, Ikediobi U, Leibowitz R, Mehta S, Coskun AK, Porterfield JZ, Lampkin TD, Marconi VC, Rimland D, Walker BD, Deeks S, Sutton RE. Transcriptional down-regulation of ccr5 in a subset of HIV+ controllers and their family members. ELife 2019, 8: e44360. PMID: 30964004, PMCID: PMC6456299, DOI: 10.7554/elife.44360.Peer-Reviewed Original ResearchConceptsAccessible chromatinActive transcriptionATAC-seqNearby genesCell surface expressionChromosome 3p21Genetic determinantsFamily membersT cell activationHost genetic determinantsResistance phenotypeChemokine receptor mRNACCR5 cell surface expressionRNA levelsCell activationPhenotypeT cellsCellsChromatinTranscriptionGenesKbMembersReceptor mRNAMRNASystematic and standardized comparison of reported amyloid-β receptors for sufficiency, affinity, and Alzheimer's disease relevance
Smith LM, Kostylev MA, Lee S, Strittmatter SM. Systematic and standardized comparison of reported amyloid-β receptors for sufficiency, affinity, and Alzheimer's disease relevance. Journal Of Biological Chemistry 2019, 294: 6042-6053. PMID: 30787106, PMCID: PMC6463724, DOI: 10.1074/jbc.ra118.006252.Peer-Reviewed Original ResearchConceptsAlzheimer's diseaseAD brainLeukocyte immunoglobulin-like receptorsNogo receptor 1Human AD brainsImmunoglobulin-like receptorsB member 2Brains of individualsReceptor candidatesSoluble AβOsDisease relevanceCell surface expressionHippocampal neuronsMouse modelSynthetic AβAβO bindingMemory impairmentReceptor 1Cellular prion proteinNeuronal synapsesNgR1Molecular pathologyAβAβ speciesMember 2
2018
The Rab-effector protein RABEP2 regulates endosomal trafficking to mediate vascular endothelial growth factor receptor-2 (VEGFR2)-dependent signaling
Kofler N, Corti F, Rivera-Molina F, Deng Y, Toomre D, Simons M. The Rab-effector protein RABEP2 regulates endosomal trafficking to mediate vascular endothelial growth factor receptor-2 (VEGFR2)-dependent signaling. Journal Of Biological Chemistry 2018, 293: 4805-4817. PMID: 29425100, PMCID: PMC5880142, DOI: 10.1074/jbc.m117.812172.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsEndosomesEndothelial CellsMiceMice, Inbred BALB CProtein TransportProtein Tyrosine Phosphatase, Non-Receptor Type 1rab GTP-Binding Proteinsrab4 GTP-Binding Proteinsrab7 GTP-Binding ProteinsSignal TransductionVascular Endothelial Growth Factor Receptor-2Vesicular Transport ProteinsConceptsEndosomal traffickingVascular endothelial growth factor receptor 2Phosphotyrosine phosphatase 1BVEGFR2 traffickingEndothelial growth factor receptor 2Small GTPase Rab4Rab effector proteinsEndothelial cell functionRab7-positive endosomesCell functionRab GTPaseSorting endosomesCell surface expressionMaster regulatorEndosomal compartmentsVEGFR2 degradationPhosphatase 1BRABEP2Dependent signalingVascular developmentVEGFR2 signalingHigh-resolution microscopyTraffickingEndosomesBiochemical assays
2016
CFTR-associated ligand is a negative regulator of Mrp2 expression
Li M, Soroka CJ, Harry K, Boyer JL. CFTR-associated ligand is a negative regulator of Mrp2 expression. American Journal Of Physiology - Cell Physiology 2016, 312: c40-c46. PMID: 27834195, PMCID: PMC5283898, DOI: 10.1152/ajpcell.00100.2016.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAnimalsCarrier ProteinsCells, CulturedChlorocebus aethiopsCOS CellsDown-RegulationGene Expression RegulationGolgi Matrix ProteinsHepatocytesHumansMaleMembrane ProteinsMembrane Transport ProteinsMiceMultidrug Resistance-Associated Protein 2Multidrug Resistance-Associated ProteinsRatsRats, Sprague-DawleySignal TransductionConceptsPull-down assaysGST pull-down assaysCOOH-terminal PDZNegative regulatorCotransfected COS-7 cellsGlutathione S-transferase fusion proteinS-transferase fusion proteinATP-binding cassette (ABC) transportersTrans-Golgi networkCystic fibrosis transmembrane conductance regulatorProtein-protein interactionsExchanger regulatory factor 1Fibrosis transmembrane conductance regulatorStreptavidin pull-down assaysTransmembrane conductance regulatorCOS-7 cellsRegulatory factor 1PDZ domainCell surface expressionPosttranscriptional regulationTransmembrane proteinPlasma membraneLLC-PK1 cellsCassette transportersCOS-7
2015
The Evolving Landscape of HER2 Targeting in Breast Cancer
Moasser MM, Krop IE. The Evolving Landscape of HER2 Targeting in Breast Cancer. JAMA Oncology 2015, 1: 1154. PMID: 26204261, DOI: 10.1001/jamaoncol.2015.2286.Peer-Reviewed Original ResearchConceptsTreatment of HER2Breast cancerImmunologic effectorsHER2 targetingSubstantial single-agent activityHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Value of HER2Lines of therapyGrowth factor receptor 2Single-agent activityLate-stage diseaseStage of diseaseUseful predictive biomarkerHER2 inhibitor lapatinibFactor receptor 2Variety of cytotoxicModest efficacyTrastuzumab resistancePredictive biomarkersCell surface expressionImmunologic activityInhibitor lapatinibReceptor 2Advanced stageIdentification and functional characterization of natural human melanocortin 1 receptor mutant alleles in Pakistani population
Shahzad M, Campos J, Tariq N, Serrano C, Yousaf R, Jiménez‐Cervantes C, Yousaf S, Waryah YM, Dad HA, Blue EM, Sobreira N, López‐Giráldez F, Genomics U, Kausar T, Ali M, Waryah AM, Riazuddin S, Shaikh RS, García‐Borrón J, Ahmed ZM. Identification and functional characterization of natural human melanocortin 1 receptor mutant alleles in Pakistani population. Pigment Cell & Melanoma Research 2015, 28: 730-735. PMID: 26197705, PMCID: PMC4609612, DOI: 10.1111/pcmr.12400.Peer-Reviewed Original ResearchConceptsPlasma membraneReduced plasma membrane expressionImpaired cell surface expressionPlasma membrane expressionGs protein-coupled receptorsProtein-coupled receptorsAgonist-induced signalingMelanocortin 1 receptorHeterologous HEK293 cellsCell surface expressionMC1R mutationsConfocal imaging studiesFunction allelesCausative allelesFunctional characterizationMutant allelesERK pathwayWhole-exome sequencingFrame deletionHEK293 cellsTyr298Pakistani familyHEK cellsMembrane expressionNonsense mutationNivolumab and Urelumab Enhance Antitumor Activity of Human T Lymphocytes Engrafted in Rag2−/−IL2Rγnull Immunodeficient Mice
Sanmamed MF, Rodriguez I, Schalper KA, Oñate C, Azpilikueta A, Rodriguez-Ruiz ME, Morales-Kastresana A, Labiano S, Pérez-Gracia JL, Martín-Algarra S, Alfaro C, Mazzolini G, Sarno F, Hidalgo M, Korman AJ, Jure-Kunkel M, Melero I. Nivolumab and Urelumab Enhance Antitumor Activity of Human T Lymphocytes Engrafted in Rag2−/−IL2Rγnull Immunodeficient Mice. Cancer Research 2015, 75: 3466-3478. PMID: 26113085, DOI: 10.1158/0008-5472.can-14-3510.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, MonoclonalColorectal NeoplasmsDNA-Binding ProteinsGraft vs Host DiseaseHT29 CellsHumansInterleukin Receptor Common gamma SubunitLeukocytes, MononuclearLymphocyte ActivationMiceNivolumabProgrammed Cell Death 1 ReceptorT-LymphocytesTumor Necrosis Factor Receptor Superfamily, Member 9ConceptsPeripheral blood mononuclear cellsT lymphocytesHuman T lymphocytesAllogeneic human peripheral blood mononuclear cellsHuman peripheral blood mononuclear cellsT cell-mediated diseaseImmune checkpoint drugsImmunostimulatory monoclonal antibodiesCell-mediated diseaseRegulatory T lymphocytesHumanized murine modelBlood mononuclear cellsHumanized mouse modelPreclinical model systemsLymphocyte infiltrationTherapeutic regimenMononuclear cellsCell surface expressionCancer immunologyGastric carcinomaImmunodeficient miceMurine modelMouse modelSame patientTumor xenograftsFunctional Significance of Glycosylation of Cl‐/oxalate exchanger Slc26a6
Thomson R, Thomson C, Aronson P. Functional Significance of Glycosylation of Cl‐/oxalate exchanger Slc26a6. The FASEB Journal 2015, 29 DOI: 10.1096/fasebj.29.1_supplement.970.6.Peer-Reviewed Original ResearchIntrinsic transport functionTransport functionFunctional significanceSite-specific mutagenesisProtein traffickingCell surface expressionSurface deliveryBiotinylation studiesGlycosylation sitesEndocytic retrievalSecond extracellular loopExtracellular loopCell surfaceGlycosylationPutative second extracellular loopGlycan residuesTraffickingHuman SLC26A6Trafficking studiesDistinct sitesEnzyme digestionEnzymatic digestsDependent uptakeSlc26a6Glycosidic linkages
2014
IL2RA (CD25) Recruits Inhibitory Phosphatases to the Cell Membrane and Mediates Negative Feedback Control of STAT5 Signaling in Acute Lymphoblastic Leukemia
Geng H, Lee J, Chen Z, Masouleh B, Hurtz C, Park E, Xiao G, Parekh S, Kornblau S, Melnick A, Paietta E, Muschen M. IL2RA (CD25) Recruits Inhibitory Phosphatases to the Cell Membrane and Mediates Negative Feedback Control of STAT5 Signaling in Acute Lymphoblastic Leukemia. Blood 2014, 124: 788. DOI: 10.1182/blood.v124.21.788.788.Peer-Reviewed Original ResearchCD25 expressionB cell developmentClinical outcomesPoor overall clinical outcomeHuman prePatient-derived preHigh-risk subsetNegative feedback controlTime of diagnosisOverall clinical outcomePoor clinical outcomeHigh-risk subtypesLeukemia initiationAcute lymphoblastic leukemiaCell developmentPhosphorylation levelsImmune precipitationColony formation capacityTransplant recipientsTyrosine kinaseTransplant settingLymphoblastic leukemiaIL-2Cell surface expressionNormal B cell developmentFeedback inhibition of ENaC: Acute and chronic mechanisms
Patel A, Yang L, Deng S, Palmer L. Feedback inhibition of ENaC: Acute and chronic mechanisms. Channels 2014, 8: 444-451. PMID: 25483587, PMCID: PMC4594590, DOI: 10.4161/19336950.2014.949190.Peer-Reviewed Original ResearchMemory Enhancement by Targeting Cdk5 Regulation of NR2B
Plattner F, Hernández A, Kistler TM, Pozo K, Zhong P, Yuen EY, Tan C, Hawasli AH, Cooke SF, Nishi A, Guo A, Wiederhold T, Yan Z, Bibb JA. Memory Enhancement by Targeting Cdk5 Regulation of NR2B. Neuron 2014, 81: 1070-1083. PMID: 24607229, PMCID: PMC4010123, DOI: 10.1016/j.neuron.2014.01.022.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsCells, CulturedCyclin-Dependent Kinase 5FemaleHippocampusMaleMemoryMemory DisordersMiceMice, Inbred C57BLMice, KnockoutMolecular Sequence DataNeuronal PlasticityNeuronsOrgan Culture TechniquesPhosphorylationRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateSynaptic TransmissionConceptsCell surface expressionReceptor cell surface expressionCyclin-dependent kinase 5Cdk5 regulationN-methyl-D-aspartate receptorsRegulatory mechanismsKinase 5NR2B functionSurface expressionNMDAR functionSubunit NR2BSynaptic plasticityEnhancerFundamental roleRegulationMemory formationNMDAR subunit NR2BCognitive enhancersValid treatment strategyPrime targetSynaptic transmissionNR2B phosphorylationNR2BPhosphorylationSurface level
2013
Partial MHC class II constructs inhibit MIF/CD74 binding and downstream effects (P5221)
Benedek G, Meza-Romero R, Andrew S, Leng L, Burrows G, Bourdette D, Offner H, Bucala R, Vandenbark A. Partial MHC class II constructs inhibit MIF/CD74 binding and downstream effects (P5221). The Journal Of Immunology 2013, 190: 67.4-67.4. DOI: 10.4049/jimmunol.190.supp.67.4.Peer-Reviewed Original ResearchMacrophage migration inhibitory factorExperimental autoimmune encephalomyelitisPartial MHC class II constructsCD74 cell-surface expressionMultiple sclerosisCell surface expressionMIF/CD74 interactionMigration inhibitory factorAutoimmune encephalomyelitisAlpha 1 domainInflammatory activityProinflammatory cytokinesHistological signsMIF activityAnti-apoptotic activityImmune systemInhibitory factorEnhanced secretionMHC complexesAntigenic peptidesCD74MIF effectsRandom migrationSurface expressionPivotal regulatorExpression and Functional Heterogeneity of Chemokine Receptors CXCR4 and CXCR7 in Primary Patient-Derived Glioblastoma Cells
Liu C, Pham K, Luo D, Reynolds BA, Hothi P, Foltz G, Harrison JK. Expression and Functional Heterogeneity of Chemokine Receptors CXCR4 and CXCR7 in Primary Patient-Derived Glioblastoma Cells. PLOS ONE 2013, 8: e59750. PMID: 23555768, PMCID: PMC3605406, DOI: 10.1371/journal.pone.0059750.Peer-Reviewed Original ResearchConceptsFunction of CXCR4Chemokine receptor CXCR4CXCR4-CXCR7Receptor CXCR4Common primary brain tumorPrimary human GBM cellsPrimary brain tumorsPersonalized treatment approachesTube formationSurface expressionPatient-derived GBM cell linesNew therapeutic targetsCell linesHuman GBM cellsPatient-derived glioblastoma cellsGBM cell linesClinical benefitPoor prognosisSuccessful treatmentCell surface expressionCXCR7 axisCXCL12-CXCR4Intracranial tumorsGBM patientsBrain tumors
2012
Feedback Inhibition of the epithelial Na+ channel (ENaC): in vitro vs. in vivo
Patel A, Frindt G, Deng S, Palmer L. Feedback Inhibition of the epithelial Na+ channel (ENaC): in vitro vs. in vivo. The FASEB Journal 2012, 26: 867.12-867.12. DOI: 10.1096/fasebj.26.1_supplement.867.12.Peer-Reviewed Original ResearchTwo-electrode voltage clampENaC-expressing oocytesCell surface expressionI NaENaC expressionCell surface expression of ENaCInhibition of ENaCAmiloride-sensitive currentsEpithelial Na+ channelExpression of ENaCCell surfaceFeedback inhibitionIn vivo protocolsNa+ channelsENaCPatch clampVoltage clampInvestigated in vitroRatsOocytesSplit-openOvernight incubationIn vitroHours incubationInhibition
2011
Pre-B Cell Receptor-Mediated Activation of BCL6 Induces Pre-B Cell Quiescence Through Transcriptional Repression of MYC
Nahar R, Ramezani-Rad P, Mossner M, Duy C, Cerchietti L, Geng H, Jumaa H, Ye B, Melnick A, Muschen M. Pre-B Cell Receptor-Mediated Activation of BCL6 Induces Pre-B Cell Quiescence Through Transcriptional Repression of MYC. Blood 2011, 118: 1406. DOI: 10.1182/blood.v118.21.1406.1406.Peer-Reviewed Original ResearchPre-B cell receptorCell receptorCell cycle exitExit cell cycleInitial proliferative burstAcute lymphoblastic leukemiaCycle exitB cell precursorsPre-B cell receptor signalingInducible activationTranscriptional repressor BCL6Receptor-mediated activationCell receptor signalingInduction of quiescenceLymphoblastic leukemiaCell surface expressionOverexpression of MYCCCND2 expressionCell cycleBcl6-deficient miceMalignant transformationReceptor signalingReceptors resultsCell precursorsReceptors
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