2016
Leishmania‐encoded orthologs of macrophage migration inhibitory factor regulate host immunity to promote parasite persistence
Holowka T, Castilho TM, Garcia AB, Sun T, McMahon‐Pratt D, Bucala R. Leishmania‐encoded orthologs of macrophage migration inhibitory factor regulate host immunity to promote parasite persistence. The FASEB Journal 2016, 30: 2249-2265. PMID: 26956417, PMCID: PMC4871794, DOI: 10.1096/fj.201500189r.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, Differentiation, B-LymphocyteApoptosisCD4-Positive T-LymphocytesCloning, MolecularGene DeletionGene Expression RegulationHistocompatibility Antigens Class IILeishmania majorLeishmaniasis, CutaneousMacrophage Migration-Inhibitory FactorsMacrophagesMiceMice, Inbred BALB CMice, Inbred C57BLMice, KnockoutMice, SCIDOrganisms, Genetically ModifiedProtein Array AnalysisProtozoan ProteinsConceptsMacrophage migration inhibitory factorMigration inhibitory factorCD4 T cellsInhibitory factorL. majorT cellsHost immunityProtective CD4 T cellsEffector CD4 T cellsCytokine macrophage migration inhibitory factorMajor-infected miceT cell primingAntigen-presenting cellsT cell formationExpression of IFNDeath-1Functional exhaustionIL-7RHost responseParasite persistenceParasite burdenParasite growthReduced expressionMiceSignificant differencesThe Wnt Antagonist Dickkopf-1 Promotes Pathological Type 2 Cell-Mediated Inflammation
Chae WJ, Ehrlich AK, Chan PY, Teixeira AM, Henegariu O, Hao L, Shin JH, Park JH, Tang WH, Kim ST, Maher SE, Goldsmith-Pestana K, Shan P, Hwa J, Lee PJ, Krause DS, Rothlin CV, McMahon-Pratt D, Bothwell AL. The Wnt Antagonist Dickkopf-1 Promotes Pathological Type 2 Cell-Mediated Inflammation. Immunity 2016, 44: 246-258. PMID: 26872695, PMCID: PMC4758884, DOI: 10.1016/j.immuni.2016.01.008.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, DermatophagoidesAntigens, ProtozoanAsthmaBlood PlateletsCell DifferentiationCells, CulturedCytokinesExtracellular Signal-Regulated MAP KinasesGene Expression RegulationHumansInflammationIntercellular Signaling Peptides and ProteinsLeishmania majorLeishmaniasis, CutaneousMiceMice, Inbred BALB CMice, Inbred C57BLMice, TransgenicModels, AnimalPyroglyphidaeSignal TransductionTh2 CellsTOR Serine-Threonine KinasesWnt ProteinsConceptsCell-mediated inflammationTh2 cell cytokine productionCell cytokine productionLeukocyte-platelet aggregatesLeukocyte infiltrationDkk-1Cytokine productionT helper 2 cellsLeishmania major infectionHouse dust miteTranscription factor c-MafAllergen challengeMajor infectionDust miteImmune responseDickkopf-1Parasitic infectionsGATA-3Pathological roleFunctional inhibitionInflammationC-MafP38 MAPKInfiltrationInfection
2014
Chronicity of Dermal Leishmaniasis Caused by Leishmania panamensis Is Associated with Parasite-Mediated Induction of Chemokine Gene Expression
Navas A, Vargas DA, Freudzon M, McMahon-Pratt D, Saravia NG, Gómez MA. Chronicity of Dermal Leishmaniasis Caused by Leishmania panamensis Is Associated with Parasite-Mediated Induction of Chemokine Gene Expression. Infection And Immunity 2014, 82: 2872-2880. PMID: 24752514, PMCID: PMC4097649, DOI: 10.1128/iai.01133-13.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedChemokinesChronic DiseaseFemaleGene Expression RegulationHumansLeishmaniaLeishmaniasis, CutaneousLeukocytesMacrophagesMaleMiddle AgedPhylogenyYoung AdultConceptsSelf-healed patientsChronic cutaneous leishmaniasisDermal leishmaniasisChemokine gene expressionClinical outcomesBiopsy specimensChronic diseasesInflammatory responseLeishmania panamensisExpression levelsCCR5 receptor geneInduction of CXCL5Montenegro skin testLesion biopsy specimensL. panamensisSelf-healing diseaseNew therapeutic targetsReverse transcription-quantitative PCRTranscription-quantitative PCRChemotactic chemokinesInflammation contributesSkin testAsymptomatic infectionInflammatory activationImmune cellsCD4 T cell activation by B cells in human Leishmania (Viannia)infection
Rodriguez-Pinto D, Saravia NG, McMahon-Pratt D. CD4 T cell activation by B cells in human Leishmania (Viannia)infection. BMC Infectious Diseases 2014, 14: 108. PMID: 24568275, PMCID: PMC3937821, DOI: 10.1186/1471-2334-14-108.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedBiotinB-LymphocytesCD4-Positive T-LymphocytesColombiaFemaleFlow CytometryFluorescein-5-isothiocyanateGene Expression RegulationHumansImmunoglobulin MInterferon-gammaInterleukin-6Leishmania braziliensisLeishmaniasis, CutaneousLeukocytes, MononuclearLymphocyte ActivationMaleMiddle AgedOvalbuminTumor Necrosis Factor-alphaYoung AdultConceptsCD4 T cellsCutaneous leishmaniasis patientsT cellsB cellsLeishmaniasis patientsT cell activationLeishmania antigenImmune responseCell activationT-cell activation parametersSpecific CD4 T cellsEffective adaptive immune responseCD4 T cell activationB-cell activation markersCultures of PBMCUpregulation of CD86Cell activation markersCostimulatory molecule CD86Activation markers CD25Adaptive immune responsesHuman cutaneous leishmaniasisPurified B cellsT cell culturesHuman B cell linesHuman B cells
2010
Murine model of chronic L. (Viannia) panamensis infection: Role of IL‐13 in disease
Castilho TM, Goldsmith‐Pestana K, Lozano C, Valderrama L, Saravia NG, McMahon‐Pratt D. Murine model of chronic L. (Viannia) panamensis infection: Role of IL‐13 in disease. European Journal Of Immunology 2010, 40: 2816-2829. PMID: 20827674, PMCID: PMC3289133, DOI: 10.1002/eji.201040384.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAnimalsChronic DiseaseDisease Models, AnimalEnzyme-Linked Immunosorbent AssayFemaleHumansInterferon-gammaInterleukin-13LeishmaniaLeishmaniasis, CutaneousMaleMiceMice, Inbred BALB CMice, KnockoutMiddle AgedReceptors, Interleukin-4Th1 CellsTh2 CellsTumor Necrosis Factor-alphaYoung AdultConceptsL. panamensis infectionsIL-13Panamensis infectionChronic diseasesImmunodeficient miceMurine modelMixed Th1/Th2 responseBALB/c mouse modelTh1/Th2 responsePrevalent etiologic agentHuman cutaneous leishmaniasisPresence of TNFPrevention of leishmaniasisIL-17Immunological mechanismsTh2 responsesIL-10Recurrent lesionsChronic infectionEvident lesionsMice resemblesT cellsImmune responsePersistent infectionLeishmania organisms
2004
Does the Leishmania major paradigm of pathogenesis and protection hold for New World cutaneous leishmaniases or the visceral disease?
McMahon‐Pratt D, Alexander J. Does the Leishmania major paradigm of pathogenesis and protection hold for New World cutaneous leishmaniases or the visceral disease? Immunological Reviews 2004, 201: 206-224. PMID: 15361243, DOI: 10.1111/j.0105-2896.2004.00190.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsEvolution, MolecularHost-Parasite InteractionsHumansLeishmaniaLeishmania majorLeishmaniasis, CutaneousLeishmaniasis, VisceralMiceMice, Inbred StrainsVirulenceConceptsMajor histocompatibility complex classDistinct Leishmania speciesLeishmania major infectionResolution of infectionT cell responsesT helper 1Histocompatibility complex classDifferent virulence factorsHost defense mechanismsMajor infectionVisceral diseaseHost macrophage cellsImmune mechanismsVisceral organsParasitic protozoaVaccine developmentCutaneous leishmaniasesSusceptibility/resistanceIntracellular pathogensGenus LeishmaniaControl of diseaseInfectionMacrophage cellsDiseaseLeishmania species
2003
Evaluation of amastigote reactive cells in human cutaneous leishmaniasis caused by Leishmania aethiopica
MAASHO K, MCMAHON-PRATT D, RAITA J, RAUD M, BRITTON S, SOONG L, AKUFFO H. Evaluation of amastigote reactive cells in human cutaneous leishmaniasis caused by Leishmania aethiopica. Clinical & Experimental Immunology 2003, 132: 316-322. PMID: 12699423, PMCID: PMC1808716, DOI: 10.1046/j.1365-2249.2003.02165.x.Peer-Reviewed Original ResearchConceptsPeripheral blood mononuclear cellsCutaneous leishmaniasisNK cellsOld World cutaneous leishmaniasisEthiopian cutaneous leishmaniasisLeishmania parasite infectionIL-10 responsesPercentage of CD4IL-10 productionBlood mononuclear cellsHuman cutaneous leishmaniasisAmastigote antigensLymphoproliferative responsesLeishmaniasis patientsMain cell typesMononuclear cellsAntigen stimulationHuman leishmaniasisGamma interferonLeishmania aethiopicaReactive cellsProtective phenotypePatientsL. aethiopicaLeishmaniasis
2000
Internalization of Leishmania mexicana Complex Amastigotes via the Fc Receptor Is Required to Sustain Infection in Murine Cutaneous Leishmaniasis
Kima P, Constant S, Hannum L, Colmenares M, Lee K, Haberman A, Shlomchik M, McMahon-Pratt D. Internalization of Leishmania mexicana Complex Amastigotes via the Fc Receptor Is Required to Sustain Infection in Murine Cutaneous Leishmaniasis. Journal Of Experimental Medicine 2000, 191: 1063-1068. PMID: 10727468, PMCID: PMC2193117, DOI: 10.1084/jem.191.6.1063.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, ProtozoanImmunization, PassiveLeishmania mexicanaLeishmaniasis, CutaneousMiceMice, Inbred BALB CMice, KnockoutMice, TransgenicReceptors, FcReceptors, IgGConceptsFc receptorsB cell antigen presentationMurine cutaneous leishmaniasisFunctional B cellsCommon gamma chainL. mexicana complexLeishmania infectionAntigen presentationCutaneous leishmaniasisB cellsLeishmania pathogenesisInfectionComplex parasitesCritical roleAntibodiesMexicana complexPathogenesisMiceGamma chainReceptorsParasitesLeishmaniasis
1998
Leishmania pifanoi Amastigote Antigen P-4: Epitopes Involved in T-Cell Responsiveness in Human Cutaneous Leishmaniasis
Haberer J, Da-Cruz A, Soong L, Oliveira-Neto M, Rivas L, McMahon-Pratt D, Coutinho S. Leishmania pifanoi Amastigote Antigen P-4: Epitopes Involved in T-Cell Responsiveness in Human Cutaneous Leishmaniasis. Infection And Immunity 1998, 66: 3100-3105. PMID: 9632572, PMCID: PMC108319, DOI: 10.1128/iai.66.7.3100-3105.1998.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, ProtozoanCytokinesEpitopesFemaleHumansLeishmaniaLeishmaniasis, CutaneousLymphocyte ActivationMaleProtozoan VaccinesT-LymphocytesConceptsPeripheral blood mononuclear cellsTh1-like responseCytokine productionCutaneous leishmaniasisExperimental murine cutaneous leishmaniasisTh1-like immune responseDetectable interleukin-4Leishmaniasis vaccine developmentCutaneous leishmaniasis patientsMurine cutaneous leishmaniasisBlood mononuclear cellsT cell responsivenessGamma interferon productionT cell proliferationIFN-gamma responsesHuman cutaneous leishmaniasisLeishmaniasis patientsMononuclear cellsImmune responseInterleukin-4Proliferative responseWhole parasite homogenatesIFN-gammaEpitope studiesMultiple epitopesT cell responses to crude and defined leishmanial antigens in patients from the Lower Amazon region of Brazil infected with different species of Leishmania of the subgenera Leishmania and Viannia
Silveira F, Blackwell J, Ishikawa E, Braga R, Shaw J, Quinnell R, Soong L, Kima P, McMahon‐Pratt D, Black G, Shaw M. T cell responses to crude and defined leishmanial antigens in patients from the Lower Amazon region of Brazil infected with different species of Leishmania of the subgenera Leishmania and Viannia. Parasite Immunology 1998, 20: 19-26. PMID: 9491414, DOI: 10.1046/j.1365-3024.1998.t01-1-00126.x.Peer-Reviewed Original ResearchConceptsT cell responsesDiffuse cutaneous leishmaniasisLeishmanial antigensCell responsesLCL patientsMucocutaneous leishmaniasisMCL patientsCutaneous leishmaniasisL. amazonensis antigensSkin test responsesL. braziliensis antigensSuitable vaccine candidateDCL patientsPoor respondersGood respondersPatient groupBraziliensis antigensSubgenus LeishmaniaAntigen A2Vaccine candidatesPatientsPotent stimulatorA2 antigenAntigenSignificant rise
1996
T-Cell Responsiveness of American Cutaneous Leishmaniasis Patients to PurifiedLeishmania pifanoiAmastigote Antigens andLeishmania braziliensisPromastigote Antigens: Immunologic Patterns Associated with Cure
Coutinho S, Oliveira M, Da-Cruz A, De Luca P, Mendonça S, Bertho A, Soong L, McMahon-Pratt D. T-Cell Responsiveness of American Cutaneous Leishmaniasis Patients to PurifiedLeishmania pifanoiAmastigote Antigens andLeishmania braziliensisPromastigote Antigens: Immunologic Patterns Associated with Cure. Experimental Parasitology 1996, 84: 144-155. PMID: 8932764, DOI: 10.1006/expr.1996.0100.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, ProtozoanAntimonyAntiprotozoal AgentsCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCells, CulturedCytokinesFemaleHumansInterferon-gammaInterleukin-2Interleukin-4LeishmaniaLeishmania braziliensisLeishmaniasis, CutaneousLymphocyte ActivationMaleMeglumineMeglumine AntimoniateOrganometallic CompoundsT-LymphocytesConceptsT cell responsesEnd of therapyBeneficial T cell responsesCell responsesCytokine productionProliferative responseAmerican cutaneous leishmaniasis patientsType 1 cytokine productionType 2 cytokine productionPeripheral blood mononuclear cellsCutaneous leishmaniasis patientsType 1 cytokinesLymphocyte proliferative responsesBlood mononuclear cellsLow proliferative responseT cell responsivenessMixed type 1T cell stimulationAmerican cutaneous leishmaniasisImmunologic patternActive diseaseReactive CD4Amastigote antigensLeishmaniasis patientsMononuclear cellsDisruption of CD40–CD40 Ligand Interactions Results in an Enhanced Susceptibility to Leishmania amazonensis Infection
Soong L, Xu J, Grewal I, Kima P, Sun J, Longley B, Ruddle N, McMahon-Pratt D, Flavell R. Disruption of CD40–CD40 Ligand Interactions Results in an Enhanced Susceptibility to Leishmania amazonensis Infection. Immunity 1996, 4: 263-273. PMID: 8624816, DOI: 10.1016/s1074-7613(00)80434-3.Peer-Reviewed Original ResearchConceptsCD40L-/- miceImmune responseCD40-CD40 ligand interactionCD40L knockout miceLeishmania amazonensis infectionProgressive ulcerative lesionTissue parasite burdenCD40-CD40L interactionCellular immune responsesProtective immune responseWild-type miceHost immune responseImpaired T cellNitric oxide productionAmazonensis infectionUlcerative lesionsInflammatory responseNecrosis factorCD40 ligandT cellsIFN-gammaKnockout miceMacrophage activationParasite burdenOxide productionLeishmania amazonensis:The Asian Rhesus Macaques (Macaca mulatta) as an Experimental Model for Study of Cutaneous Leishmaniasis
Amaral V, Ransatto V, Conceição-Silva F, Molinaro E, Ferreira V, Coutinho S, McMahon-Pratt D, Grimaldi G. Leishmania amazonensis:The Asian Rhesus Macaques (Macaca mulatta) as an Experimental Model for Study of Cutaneous Leishmaniasis. Experimental Parasitology 1996, 82: 34-44. PMID: 8617329, DOI: 10.1006/expr.1996.0005.Peer-Reviewed Original ResearchConceptsCutaneous leishmaniasisRhesus macaquesActive infectionPrimate modelT cellsPeripheral T-cell subpopulationsType hypersensitivity responseLevels of IgMT cell subpopulationsNonhuman primate modelCourse of infectionAsian rhesus macaquesLeishmanial antigensHomologous infectionMononuclear infiltrateProtective immunityHypersensitivity responseIgG antibodiesPathologic analysisLeishmanial infectionPlasma cellsSkin lesionsProliferative responseLesion sizeInitial infection
1995
Leishmania pifanoi amastigote antigens protect mice against cutaneous leishmaniasis
Soong L, Duboise S, Kima P, McMahon-Pratt D. Leishmania pifanoi amastigote antigens protect mice against cutaneous leishmaniasis. Infection And Immunity 1995, 63: 3559-3566. PMID: 7642292, PMCID: PMC173494, DOI: 10.1128/iai.63.9.3559-3566.1995.Peer-Reviewed Original ResearchConceptsBALB/c miceAmastigote antigensC miceImmune responseTh1 cell-mediated immune responseCell-mediated immune responsesCBA/J miceCross-species protectionGamma interferon productionWeeks of infectionAmastigotes of LeishmaniaHost immune responseStage-specific antigensAmazonensis infectionImmunized miceIntraperitoneal injectionJ miceCorynebacterium parvumLeishmaniasis vaccineProliferative responseVaccine potentialCutaneous leishmaniasisParasite burdenInterferon productionAntigen
1992
Cutaneous Leishmaniasis: Review of 59 Cases Seen at the National Institutes of Health
Melby P, Kreutzer R, McMahon-Pratt D, Gam A, Neva F. Cutaneous Leishmaniasis: Review of 59 Cases Seen at the National Institutes of Health. Clinical Infectious Diseases 1992, 15: 924-937. PMID: 1457663, DOI: 10.1093/clind/15.6.924.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultChildChild, PreschoolFemaleHumansLeishmaniasis, CutaneousMaleMiddle AgedNational Institutes of Health (U.S.)United StatesConceptsCutaneous leishmaniasisEndemic areasCutaneous diseaseGroup of patientsDiffuse cutaneous leishmaniasisNational InstituteDifferent endemic areasChronic relapsingFrequent international travelOptimal therapyClinical spectrumMultiple lesionsAmerican patientsLeishmaniasisPatientsLeishmania majorDiseaseLesionsEarly ageInternational travelU.S. residentsHealthRelapsingMajorityTherapyCutaneous leishmaniasis in western Venezuela caused by infection with Leishmania venezuelensis and L. braziliensis variants
Bonfante-Garrido R, Meléndez E, Barroeta S, de Alejos M, Momen H, Cupolillo E, McMahon-Pratt D, Grimaldi G. Cutaneous leishmaniasis in western Venezuela caused by infection with Leishmania venezuelensis and L. braziliensis variants. Transactions Of The Royal Society Of Tropical Medicine And Hygiene 1992, 86: 141-148. PMID: 1440772, DOI: 10.1016/0035-9203(92)90544-m.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAnimalsAntibodies, MonoclonalChildChild, PreschoolFemaleHumansInfantLeishmaniaLeishmania braziliensisLeishmaniasis, CutaneousMaleMiddle AgedVenezuelaConceptsL. braziliensisEndemic regionsSame endemic regionLeishmania venezuelensisL. venezuelensisSpecific monoclonal antibodiesCutaneous leishmaniasisPositive culturesEpidemiological studiesInfected donkeysHuman casesMonoclonal antibodiesDomestic reservoirBraziliensisL. guyanensisVenezuelensisState of LaraIsoenzyme electrophoresisReference strains