2014
CD4 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
2012
Regulatory T Cells in the Pathogenesis and Healing of Chronic Human Dermal Leishmaniasis Caused by Leishmania (Viannia) Species
Rodriguez-Pinto D, Navas A, Blanco VM, Ramírez L, Garcerant D, Cruz A, Craft N, Saravia NG. Regulatory T Cells in the Pathogenesis and Healing of Chronic Human Dermal Leishmaniasis Caused by Leishmania (Viannia) Species. PLOS Neglected Tropical Diseases 2012, 6: e1627. PMID: 22545172, PMCID: PMC3335885, DOI: 10.1371/journal.pntd.0001627.Peer-Reviewed Original ResearchMeSH KeywordsAsymptomatic DiseasesCD4 AntigensChronic DiseaseFemaleFlow CytometryForkhead Transcription FactorsGene Expression ProfilingGlucocorticoid-Induced TNFR-Related ProteinHumansImmunophenotypingInterferon-gammaInterleukin-2 Receptor alpha SubunitInterleukin-7 Receptor alpha SubunitLeishmaniaLeishmaniasis, CutaneousMaleSkinT-Lymphocytes, RegulatoryConceptsRegulatory T cellsIFN-γ secretionDermal leishmaniasisPeripheral bloodT cellsSuppressive capacityCD4 T-cell frequenciesImpaired Treg functionParticipation of TregsT cell frequenciesExpression of Foxp3CD4 T cellsEnd of treatmentHealing of lesionsCdLS patientsSkin test sitesSite biopsiesTreg subsetsImmunotherapeutic strategiesTreg functionEffector cellsCutaneous lesionsFoxp3 expressionCutaneous responseInflammatory response
2007
Treponema pallidum Elicits Innate and Adaptive Cellular Immune Responses in Skin and Blood during Secondary Syphilis: A Flow-Cytometric Analysis
Salazar JC, Cruz AR, Pope CD, Valderrama L, Trujillo R, Saravia NG, Radolf JD. Treponema pallidum Elicits Innate and Adaptive Cellular Immune Responses in Skin and Blood during Secondary Syphilis: A Flow-Cytometric Analysis. The Journal Of Infectious Diseases 2007, 195: 879-887. PMID: 17299719, PMCID: PMC2131710, DOI: 10.1086/511822.Peer-Reviewed Original ResearchConceptsCellular immune responsesPeripheral bloodT cellsSecondary syphilisBlister fluidImmune responseControl subjectsDC-specific intercellular adhesion molecule 3DC-SIGNSystemic cellular immune responsesAdaptive cellular immune responsesEpidermal suction blistersIntercellular adhesion molecule 3Plasmacytoid dendritic cellsDermal T cellsHealthy control subjectsHuman leukocyte antigenActivation marker CD69Adaptive immune responsesMonocytes/macrophagesFlow cytometric analysisDermal leukocytesLeukocyte immunophenotypesHIV coreceptorsDendritic cells
1997
Carbohydrate and LPG expression in Leishmania viannia subgenus.
Muskus C, Segura I, Oddone R, Turco S, Leiby D, Toro L, Robledo S, Saravia N. Carbohydrate and LPG expression in Leishmania viannia subgenus. Journal Of Parasitology 1997, 83: 671-8. PMID: 9267410, DOI: 10.2307/3284245.Peer-Reviewed Original ResearchConceptsGrowth phaseLogarithmic phase promastigotesRepeat unitsViannia subgenusLPG repeat unitsSpecies referenceL. donovani lipophosphoglycanLPG expressionMolecular determinantsSubgeneraCell surfaceGlycosylated moleculesStationary phase promastigotesL. donovaniDistinct populationsBiochemical analysisExpression of carbohydratesSpeciesExpressionL. panamensisL. guyanensisSuch moleculesL. braziliensisLeishmania promastigotesFlow cytometry