2022
EBVerified TCRs and multiple sclerosis.
Sefik E, O'Connor KC. EBVerified TCRs and multiple sclerosis. Science Immunology 2022, 7: eadf0763. PMID: 36206354, DOI: 10.1126/sciimmunol.adf0763.Peer-Reviewed Original Research
2021
A humanized mouse model of chronic COVID-19
Sefik E, Israelow B, Mirza H, Zhao J, Qu R, Kaffe E, Song E, Halene S, Meffre E, Kluger Y, Nussenzweig M, Wilen CB, Iwasaki A, Flavell RA. A humanized mouse model of chronic COVID-19. Nature Biotechnology 2021, 40: 906-920. PMID: 34921308, PMCID: PMC9203605, DOI: 10.1038/s41587-021-01155-4.Peer-Reviewed Original ResearchConceptsChronic COVID-19Humanized mouse modelImmune responseMouse modelAcute respiratory syndrome coronavirus 2 infectionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infectionSyndrome coronavirus 2 infectionCOVID-19Adaptive human immune responsesInterferon-stimulated gene signaturePersistent viral RNACoronavirus 2 infectionPatient-derived antibodiesT-cell lymphopeniaHuman immune responseHyperactive immune responseCoronavirus disease 2019Inflammatory macrophage responseImmunological injuryLung pathologyCell lymphopeniaDisease 2019Severe diseaseRodent modelsInflammatory macrophages
2020
An Immunologic Mode of Multigenerational Transmission Governs a Gut Treg Setpoint
Ramanan D, Sefik E, Galván-Peña S, Wu M, Yang L, Yang Z, Kostic A, Golovkina T, Kasper D, Mathis D, Benoist C. An Immunologic Mode of Multigenerational Transmission Governs a Gut Treg Setpoint. Cell 2020, 181: 1276-1290.e13. PMID: 32402238, PMCID: PMC7393667, DOI: 10.1016/j.cell.2020.04.030.Peer-Reviewed Original ResearchConceptsDouble-negative feedback loopTreg proportionImmunological modeGut immune responseGut commensalsControlling gut inflammationSpecies levelInbred mouse strainsMulti-generational transmissionTreg-dependent mannerCellular perturbationsRegulatory T cellsDisease susceptibilityNon-epigeneticMaternal transmissionInflammatory disease susceptibilityNon-geneticGut inflammationT cellsGenetic tuningMouse strainsImmune responseMultiple generationsImmune systemFeedback loop
2014
Treg Cells Expressing the Coinhibitory Molecule TIGIT Selectively Inhibit Proinflammatory Th1 and Th17 Cell Responses
Joller N, Lozano E, Burkett PR, Patel B, Xiao S, Zhu C, Xia J, Tan TG, Sefik E, Yajnik V, Sharpe AH, Quintana FJ, Mathis D, Benoist C, Hafler DA, Kuchroo VK. Treg Cells Expressing the Coinhibitory Molecule TIGIT Selectively Inhibit Proinflammatory Th1 and Th17 Cell Responses. Immunity 2014, 40: 569-581. PMID: 24745333, PMCID: PMC4070748, DOI: 10.1016/j.immuni.2014.02.012.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell ProliferationCells, CulturedCytokinesEosinophilsFibrinogenForkhead Transcription FactorsGene Expression ProfilingGene Expression RegulationImmunosuppression TherapyLymphocyte ActivationMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicReceptors, ImmunologicRespiratory HypersensitivityTh1-Th2 BalanceT-Lymphocyte SubsetsT-Lymphocytes, RegulatoryConceptsTreg cell subsetsTh2 cell responsesTreg cellsCell subsetsCell responsesProinflammatory T helper 1T effector cell proliferationTreg cell-mediated suppressionFibrinogen-like protein 2Allergic airway inflammationT regulatory (Treg) cellsTh2 cytokine productionSuppression of Th1T helper 1Effector cell proliferationTreg signature genesProinflammatory Th1TIGIT expressionAirway inflammationTh17 cellsRegulatory cellsHelper 1Cytokine productionT cellsImmune response
2013
A Special Population of Regulatory T Cells Potentiates Muscle Repair
Burzyn D, Kuswanto W, Kolodin D, Shadrach J, Cerletti M, Jang Y, Sefik E, Tan T, Wagers A, Benoist C, Mathis D. A Special Population of Regulatory T Cells Potentiates Muscle Repair. Cell 2013, 155: 1282-1295. PMID: 24315098, PMCID: PMC3894749, DOI: 10.1016/j.cell.2013.10.054.Peer-Reviewed Original ResearchConceptsTreg cellsMuscle repairDepletion of Treg cellsPopulation of Treg cellsSuppressors of immune responsesMuscle repair in vivoMyeloid lineage cellsGrowth factor amphiregulinSatellite cells in vitroImpaired muscle repairCells in vitroGenetically dystrophic miceProinflammatory infiltratesSkeletal muscle of miceMuscle of miceTreg activityTreg populationDystrophic miceImmune responseMuscular dystrophyTherapeutic opportunitiesNonimmunologic processesTregsWound repairMuscle damage