2022
Human neutrophil development and functionality are enabled in a humanized mouse model
Zheng Y, Sefik E, Astle J, Karatepe K, Öz HH, Solis AG, Jackson R, Luo HR, Bruscia EM, Halene S, Shan L, Flavell RA. Human neutrophil development and functionality are enabled in a humanized mouse model. Proceedings Of The National Academy Of Sciences Of The United States Of America 2022, 119: e2121077119. PMID: 36269862, PMCID: PMC9618085, DOI: 10.1073/pnas.2121077119.Peer-Reviewed Original ResearchConceptsHumanized mouse modelMouse modelHuman immune systemHuman neutrophilsImmune systemFunctional human immune systemGranulocyte colony-stimulating factorUnique mouse modelColony-stimulating factorHuman G-CSFMISTRG miceG-CSF receptor geneBacterial burdenInfectious challengeG-CSFNeutrophilsMiceNeutrophil developmentReceptor geneDiseaseInhibition of type 1 immunity with tofacitinib is associated with marked improvement in longstanding sarcoidosis
Damsky W, Wang A, Kim DJ, Young BD, Singh K, Murphy MJ, Daccache J, Clark A, Ayasun R, Ryu C, McGeary MK, Odell ID, Fazzone-Chettiar R, Pucar D, Homer R, Gulati M, Miller EJ, Bosenberg M, Flavell RA, King B. Inhibition of type 1 immunity with tofacitinib is associated with marked improvement in longstanding sarcoidosis. Nature Communications 2022, 13: 3140. PMID: 35668129, PMCID: PMC9170782, DOI: 10.1038/s41467-022-30615-x.Peer-Reviewed Original ResearchConceptsType 1 immunityInternal organ involvementOrgan involvementT cell-derived IFNIdiopathic inflammatory disorderOpen-label trialMonths of treatmentType 1 cytokinesJanus kinase inhibitorImmunologic changesLongstanding sarcoidosisSarcoidosis activitySarcoidosis symptomsClinical improvementCutaneous sarcoidosisSecondary outcomesComplete responsePrimary outcomeTofacitinib treatmentActivity scoreCytokine mediatorsIL-12IL-15IL-6Inflammatory disorders
2020
Evidence for a pathogenic role of extrafollicular, IL-10–producing CCR6+B helper T cells in systemic lupus erythematosus
Facciotti F, Larghi P, Bosotti R, Vasco C, Gagliani N, Cordiglieri C, Mazzara S, Ranzani V, Rottoli E, Curti S, Penatti A, Karnani B, Kobayashi Y, Crosti M, Bombaci M, van Hamburg JP, Rossetti G, Gualtierotti R, Gerosa M, Gatti S, Torretta S, Pignataro L, Tas SW, Abrignani S, Pagani M, Grassi F, Meroni PL, Flavell RA, Geginat J. Evidence for a pathogenic role of extrafollicular, IL-10–producing CCR6+B helper T cells in systemic lupus erythematosus. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 7305-7316. PMID: 32184325, PMCID: PMC7132288, DOI: 10.1073/pnas.1917834117.Peer-Reviewed Original ResearchConceptsSystemic lupus erythematosusHelper T cellsT cellsIL-10Pathogenic roleSLE patientsLupus erythematosusIL-7RB cellsPathogenic anti-dsDNA antibodiesFollicular helper T cellsAnti-dsDNA antibodiesLupus-like diseaseT cell populationsB cell responsesProduction ex vivoCytokine reporter miceProminent pathogenic roleImmunoglobulin G productionNaïve B cellsIL-17Antiinflammatory cytokinesLymph nodesInterleukin-10Peripheral blood