2017
Local Delivery of the Toll-Like Receptor 9 Ligand CpG Downregulates Host Immune and Inflammatory Responses, Ameliorating Established Leishmania (Viannia) panamensis Chronic Infection
Ehrlich AK, Fernández OL, Rodriguez-Pinto D, Castilho TM, Caridad M, Goldsmith-Pestana K, Saravia NG, McMahon-Pratt D. Local Delivery of the Toll-Like Receptor 9 Ligand CpG Downregulates Host Immune and Inflammatory Responses, Ameliorating Established Leishmania (Viannia) panamensis Chronic Infection. Infection And Immunity 2017, 85: 10.1128/iai.00981-16. PMID: 28052994, PMCID: PMC5328479, DOI: 10.1128/iai.00981-16.Peer-Reviewed Original ResearchConceptsAntigen-presenting cellsPeripheral blood mononuclear cellsCutaneous leishmaniasisB cellsIL-17IL-13Inflammatory responseMouse modelToll-like receptor 9 ligand CpGAlternate therapeutic approachCurrent treatment optionsBlood mononuclear cellsMixed inflammatory responseRegulatory cell functionProduction of IFNPredominant etiologic agentDose-response effectHost immune responseCell populationsGrowth factor βCpG treatmentRegulatory cellsChemokine responsesIL-10Host Immune
2015
Cutaneous leishmaniasis is regulated by Wnt antagonist Dkk-1 from activated platelets (MPF7P.715)
Bothwell A, Chae W, Ehrlich A, Teixeira A, Goldsmith-Pestana K, Maher S, Hwa J, Krause D, McMahon-Pratt D. Cutaneous leishmaniasis is regulated by Wnt antagonist Dkk-1 from activated platelets (MPF7P.715). The Journal Of Immunology 2015, 194: 203.16-203.16. DOI: 10.4049/jimmunol.194.supp.203.16.Peer-Reviewed Original ResearchNeutrophil-platelet aggregate formationDkk-1Cutaneous leishmaniasisLate inflammatory responseSkin inflammatory diseasesT cell differentiationMajor infectionAntigen exposureLymph nodesChronic inflammationTh2 cytokinesInflammatory diseasesInflammatory responseTh2 cellsSkin lesionsSmall molecule inhibitorsParasite burdenGATA-3Functional inhibitionMarked inhibitionLeishmaniasisC-MafHuman plateletsMolecule inhibitorsPlatelets
2012
The Abl and Arg Kinases Mediate Distinct Modes of Phagocytosis and Are Required for Maximal Leishmania Infection
Wetzel DM, McMahon-Pratt D, Koleske AJ. The Abl and Arg Kinases Mediate Distinct Modes of Phagocytosis and Are Required for Maximal Leishmania Infection. Molecular And Cellular Biology 2012, 32: 3176-3186. PMID: 22665498, PMCID: PMC3434515, DOI: 10.1128/mcb.00086-12.Peer-Reviewed Original ResearchConceptsComplement receptor 3Leishmania infectionIgG-coated beadsMurine cutaneous leishmaniasisPotential therapeutic targetLeishmania uptakeVisceral diseaseObligate intracellular parasitesCutaneous leishmaniasisTherapeutic targetFc receptorsAmastigote uptakeTreatment resultsReceptor 3Small lesionsInfection severityLeishmania amazonensisKinase inhibitorsIntracellular parasitesBead phagocytosisPhagocytosisReceptorsC3biInfectionLeishmaniasis
2008
Intradermal NKT cell activation during DNA priming in heterologous prime‐boost vaccination enhances T cell responses and protection against Leishmania
Dondji B, Deak E, Goldsmith‐Pestana K, Perez‐Jimenez E, Esteban M, Miyake S, Yamamura T, McMahon‐Pratt D. Intradermal NKT cell activation during DNA priming in heterologous prime‐boost vaccination enhances T cell responses and protection against Leishmania. European Journal Of Immunology 2008, 38: 706-719. PMID: 18286565, PMCID: PMC3448375, DOI: 10.1002/eji.200737660.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibody FormationAntigens, ProtozoanCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesGalactosylceramidesGenetic VectorsGranzymesImmunity, CellularInterferon-gammaInterleukin-10Killer Cells, NaturalLeishmaniasisLymphocyte ActivationLymphocyte DepletionMiceMice, Inbred BALB CMice, Mutant StrainsNitric OxideProtozoan ProteinsSkinT-LymphocytesVaccinationVaccines, DNAVaccinia virusConceptsHeterologous prime-boost vaccinationPrime-boost vaccinationNKT cell activationCD8 T cellsT cellsCell activationVaccinated miceDNA primingActivated C-kinase (rLACK) antigensT cell immune responsesDevelopment of CD4Murine cutaneous leishmaniasisT cell responsesCell immune responsesElicit protective immunityIL-10Protective immunityImmune responseLeishmania homologueIFN-gammaAlphaGalCerCutaneous leishmaniasisVisceral leishmaniasisParasite burdenCell responses
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
2001
Biochemical and Biological Characterization of the Protective Leishmania pifanoi Amastigote Antigen P-8
Colmenares M, Tiemeyer M, Kima P, McMahon-Pratt D. Biochemical and Biological Characterization of the Protective Leishmania pifanoi Amastigote Antigen P-8. Infection And Immunity 2001, 69: 6776-6784. PMID: 11598050, PMCID: PMC100055, DOI: 10.1128/iai.69.11.6776-6784.2001.Peer-Reviewed Original ResearchConceptsAntigen PFurther vaccine studiesSignificant T cell activationT cell activationWestern blot analysisProtective immunityVaccine studiesApolipoprotein EMurine modelCutaneous leishmaniasisSignificant protectionComparable protectionImmunodominant componentAntigenic glycolipidsImmunity studiesAntigenCysteine proteinasesGlycolipid componentBiochemical analysisBiological characterizationSodium dodecyl sulfate-polyacrylamide gel electrophoresisDodecyl sulfate-polyacrylamide gel electrophoresisSulfate-polyacrylamide gel electrophoresisInfectionLeishmaniasis
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 ResearchConceptsFc 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 ResearchConceptsPeripheral 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
Leishmania 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 ResearchConceptsCutaneous 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 ResearchConceptsL. braziliensisEndemic regionsSame endemic regionLeishmania venezuelensisL. venezuelensisSpecific monoclonal antibodiesCutaneous leishmaniasisPositive culturesEpidemiological studiesInfected donkeysHuman casesMonoclonal antibodiesDomestic reservoirBraziliensisL. guyanensisVenezuelensisState of LaraIsoenzyme electrophoresisReference strains
1991
Leishmaniasis in Bahia, Brazil: evidence that Leishmania amazonensis produces a wide spectrum of clinical disease.
Barral A, Pedral-Sampaio D, Grimaldi G, Momen H, McMahon-Pratt D, de Jesus A, Almeida R, Badaro R, Barral-Netto M, Carvalho E, Johnson W. Leishmaniasis in Bahia, Brazil: evidence that Leishmania amazonensis produces a wide spectrum of clinical disease. American Journal Of Tropical Medicine And Hygiene 1991, 44: 536-46. PMID: 2063957, DOI: 10.4269/ajtmh.1991.44.536.Peer-Reviewed Original ResearchConceptsMucocutaneous leishmaniasisCutaneous leishmaniasisClinical presentationVisceral leishmaniasisCases of CLMonoclonal antibodiesLeishmania amazonensisCases of DCLL. amazonensis infectionDifferent clinical presentationsDifferent clinical formsDifferent Leishmania speciesAmazonensis infectionClinical groundsIndistinguishable clinical presentationDermal leishmaniasisSpecific monoclonal antibodiesClinical formsClinical diseaseLeishmanial diseaseL. chagasiWide spectrumLeishmania referenceLeishmaniasisL. amazonensisLeishmania donovani chagasi: new clinical variant of cutaneous leishmaniasis in Honduras
Ponce C, Ponce E, Morrison A, Cruz A, Kreutzer R, McMahon-Pratt D, Neva F. Leishmania donovani chagasi: new clinical variant of cutaneous leishmaniasis in Honduras. The Lancet 1991, 337: 67-70. PMID: 1670724, DOI: 10.1016/0140-6736(91)90734-7.Peer-Reviewed Original ResearchConceptsCutaneous leishmaniasisSkin lesionsEndemic visceral leishmaniasisMontenegro skin testNew clinical variantAtypical cutaneous leishmaniasisSkin testLaboratory criteriaClinical variantsVisceral leishmaniasisKala-azarBone marrowPatientsParasite isolatesLesionsMajor antigenLeishmaniasisLeishmania mexicanaUnusual formIsoenzyme analysisYearsMarrowAntigenChagasiMonths