2011
Circadian expression of clock genes in mouse macrophages, dendritic cells, and B cells
Silver AC, Arjona A, Hughes ME, Nitabach MN, Fikrig E. Circadian expression of clock genes in mouse macrophages, dendritic cells, and B cells. Brain Behavior And Immunity 2011, 26: 407-413. PMID: 22019350, PMCID: PMC3336152, DOI: 10.1016/j.bbi.2011.10.001.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsARNTL Transcription FactorsB-LymphocytesCircadian RhythmCircadian Rhythm Signaling Peptides and ProteinsCLOCK ProteinsDendritic CellsDNA-Binding ProteinsGene ExpressionMacrophagesMiceNuclear Receptor Subfamily 1, Group D, Member 1Period Circadian ProteinsPhotoperiodSpleenTranscription FactorsConceptsMolecular clock mechanismClock genesClock mechanismGene expressionClock-controlled transcription factorsFunctional molecular clockAspects of physiologyConstant environmental conditionsMolecular clockTranscription factorsCircadian expressionB cellsEnvironmental conditionsLight-dark cycleMouse macrophagesDaily rhythmsGenesExpressionCellsDendritic cellsMurine spleenMammalsMacrophagesSplenic NK cellsImmune cells
2008
Drak2 Contributes to West Nile Virus Entry into the Brain and Lethal Encephalitis
Wang S, Welte T, McGargill M, Town T, Thompson J, Anderson JF, Flavell RA, Fikrig E, Hedrick SM, Wang T. Drak2 Contributes to West Nile Virus Entry into the Brain and Lethal Encephalitis. The Journal Of Immunology 2008, 181: 2084-2091. PMID: 18641347, PMCID: PMC2494872, DOI: 10.4049/jimmunol.181.3.2084.Peer-Reviewed Original ResearchConceptsT cellsWNV infectionIFN-gamma-producing T cellsWest Nile virus entryWNV-infected miceExperimental autoimmune encephalomyelitisLethal WNV infectionBlood-brain barrierGroups of miceDeath-associated protein familyWild-type miceAutoimmune encephalomyelitisWest Nile virusViral AgViral loadBrain barrierViral levelsLethal encephalitisPeripheral tissuesB cellsSystemic infectionMiceInfectionVirus entryBrain
2007
IL-12/23p40-dependent clearance of Anaplasma phagocytophilum in the murine model of human anaplasmosis
Pedra JH, Tao J, Sutterwala FS, Sukumaran B, Berliner N, Bockenstedt LK, Flavell RA, Yin Z, Fikrig E. IL-12/23p40-dependent clearance of Anaplasma phagocytophilum in the murine model of human anaplasmosis. Pathogens And Disease 2007, 50: 401-410. PMID: 17521390, DOI: 10.1111/j.1574-695x.2007.00270.x.Peer-Reviewed Original ResearchConceptsIL-12/23p40Deficient miceT cellsImmune responseHuman anaplasmosisTh1 immune responseIFN-gamma productionDay 6 postinfectionAnaplasma phagocytophilumA. phagocytophilum burdenIL-23Dendritic cellsIL-12Neutrophil numbersIFN-gammaMurine modelMicrobial agonistsPathogen clearanceDependent clearanceInfectious diseasesEarly susceptibilityPathogen eliminationCausative agentA. phagocytophilumIndependent mechanisms
2001
Exploitation of Interleukin-8-Induced Neutrophil Chemotaxis by the Agent of Human Granulocytic Ehrlichiosis
Akkoyunlu M, Malawista S, Anguita J, Fikrig E. Exploitation of Interleukin-8-Induced Neutrophil Chemotaxis by the Agent of Human Granulocytic Ehrlichiosis. Infection And Immunity 2001, 69: 5577-5588. PMID: 11500432, PMCID: PMC98672, DOI: 10.1128/iai.69.9.5577-5588.2001.Peer-Reviewed Original ResearchConceptsHuman granulocytic ehrlichiosisInterleukin-8Granulocytic ehrlichiosisHGE bacteriaUpregulation of CXCR2IL-8 receptorsIL-8 productionIL-8 secretionSite of infectionInfected HL-60 cellsObligate intracellular bacteriumChemotaxis chamber assayNeutrophils migrateNeutrophil migrationNeutrophil chemotaxisImmunodeficient miceControl animalsBacterial disseminationHost defensePromyelocytic cell lineChamber assayIntracellular bacteriumHL-60 cellsRetinoic acidNeutrophil lineage
2000
Gamma Interferon Dominates the Murine Cytokine Response to the Agent of Human Granulocytic Ehrlichiosis and Helps To Control the Degree of Early Rickettsemia
Akkoyunlu M, Fikrig E. Gamma Interferon Dominates the Murine Cytokine Response to the Agent of Human Granulocytic Ehrlichiosis and Helps To Control the Degree of Early Rickettsemia. Infection And Immunity 2000, 68: 1827-1833. PMID: 10722570, PMCID: PMC97354, DOI: 10.1128/iai.68.4.1827-1833.2000.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBacteremiaConcanavalin ACytokinesDisease ProgressionDose-Response Relationship, DrugEhrlichiosisEnzyme-Linked Immunosorbent AssayFemaleHL-60 CellsHumansImmunoglobulin GInterferon-gammaMiceMice, Inbred C3HNeutrophilsReverse Transcriptase Polymerase Chain ReactionRickettsiaSpleenTime FactorsT-LymphocytesConceptsIFN-gamma-deficient miceHuman granulocytic ehrlichiosisIFN-gamma levelsDay 8Cytokine responsesIFN-gammaGamma interferonCells/HGE bacteriaGranulocytic ehrlichiosisIFN-gamma-independent mechanismMurine cytokine responsesTime pointsAgent of HGEMore IFN-gammaC3H/HeNLess interleukin-4IFN-gamma responsesMurine infection modelLater time pointsObligate intracellular bacteriumTh1 phenotypeC57BL/6 miceDNA burdenImmunocompetent mice
1998
Granulocytic Ehrlichiosis in the Laboratory Mouse
Hodzic E, IJdo J, Feng S, Katavolos P, Sun W, Maretzki C, Fish D, Fikrig E, Telford S, Barthold S. Granulocytic Ehrlichiosis in the Laboratory Mouse. The Journal Of Infectious Diseases 1998, 177: 737-745. PMID: 9498456, DOI: 10.1086/514236.Peer-Reviewed Original ResearchConceptsHuman granulocytic ehrlichiosisMouse passageGranulocytic ehrlichiosisHL-60 cell culturesPeripheral bloodC3H miceLate infectionEarly infectionCell culturesDay 17Day 5Blood smearsNormal valuesDay 24Polymerase chain reaction amplificationHGE agentChain reaction amplificationSpleen smearsMiceInfectionInfectivity assaysBloodLaboratory miceSmearsReaction amplification