2021
The E3 ubiquitin ligase RNF186 and RNF186 risk variants regulate innate receptor-induced outcomes
Ranjan K, Hedl M, Abraham C. The E3 ubiquitin ligase RNF186 and RNF186 risk variants regulate innate receptor-induced outcomes. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2013500118. PMID: 34353900, PMCID: PMC8364215, DOI: 10.1073/pnas.2013500118.Peer-Reviewed Original ResearchMeSH KeywordsCytokinesHumansImmunity, InnateInflammatory Bowel DiseasesIntestinesMacrophagesMyeloid CellsNF-kappa BNod2 Signaling Adaptor ProteinPolymorphism, Single NucleotideReceptor-Interacting Protein Serine-Threonine Kinase 2Receptors, Pattern RecognitionToll-Like Receptor 2Toll-Like Receptor 4UbiquitinationUbiquitin-Protein LigasesConceptsPattern recognition receptorsE3 ubiquitin ligase activityStimulation of PRRsAntimicrobial reactive oxygen speciesMultiple pattern recognition receptorsLoss of functionLigase activityReactive nitrogen speciesComplex assemblyIntestinal myeloid cellsReactive oxygen speciesAutophagy pathwayDownstream signalingRNF186Bacterial clearanceRisk variantsRecognition receptorsHuman macrophagesOxygen speciesInnate immunityInflammatory bowel diseaseNitrogen speciesMicrobial clearanceSpeciesMyeloid cells
2020
T Cell-Intrinsic IRF5 Regulates T Cell Signaling, Migration, and Differentiation and Promotes Intestinal Inflammation
Yan J, Pandey SP, Barnes BJ, Turner JR, Abraham C. T Cell-Intrinsic IRF5 Regulates T Cell Signaling, Migration, and Differentiation and Promotes Intestinal Inflammation. Cell Reports 2020, 31: 107820. PMID: 32610123, PMCID: PMC7409536, DOI: 10.1016/j.celrep.2020.107820.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCD4-Positive T-LymphocytesCell DifferentiationCell MovementColitisCytokinesGenetic Predisposition to DiseaseHumansInflammationInterferon Regulatory FactorsIntestinesLymph NodesMice, Inbred BALB CReceptors, Antigen, T-CellReceptors, ChemokineSignal TransductionT-LymphocytesUp-RegulationConceptsInflammatory outcomesTh17-associated transcription factorsMultiple immune-mediated diseasesPromotes Intestinal InflammationTh17-associated cytokinesAnti-inflammatory cytokinesImmune-mediated diseasesTh2-associated cytokinesChemokine-induced migrationExperimental colitisIntestinal inflammationUlcerative colitisHuman CD4IRF5 polymorphismsT cell signalingCytokinesCD4IRF5Th1Myeloid lineageGenetic carriersColitisCell migrationKey roleOutcomes
2015
A TPL2 (MAP3K8) disease-risk polymorphism increases TPL2 expression thereby leading to increased pattern recognition receptor-initiated caspase-1 and caspase-8 activation, signalling and cytokine secretion
Hedl M, Abraham C. A TPL2 (MAP3K8) disease-risk polymorphism increases TPL2 expression thereby leading to increased pattern recognition receptor-initiated caspase-1 and caspase-8 activation, signalling and cytokine secretion. Gut 2015, 65: 1799. PMID: 26215868, PMCID: PMC5106344, DOI: 10.1136/gutjnl-2014-308922.Peer-Reviewed Original ResearchConceptsCaspase-8 activationMonocyte-derived macrophagesAutocrine IL-1βIL-18 secretionHost-microbial interactionsCytokine secretionHuman monocyte-derived macrophagesHuman myeloid cellsMyeloid cellsCaspase-1Intestinal myeloid cellsPattern recognition receptorsOligomerisation domainIL-1βPrimary human myeloid cellsReal-time PCRFunctional consequencesTpl2NFκB signalingRecognition receptorsRNA expressionIntestinal immune homeostasisERKMyeloid-derived cellsJNK
2014
Activation of Pattern Recognition Receptors Up-Regulates Metallothioneins, Thereby Increasing Intracellular Accumulation of Zinc, Autophagy, and Bacterial Clearance by Macrophages
Lahiri A, Abraham C. Activation of Pattern Recognition Receptors Up-Regulates Metallothioneins, Thereby Increasing Intracellular Accumulation of Zinc, Autophagy, and Bacterial Clearance by Macrophages. Gastroenterology 2014, 147: 835-846. PMID: 24960189, PMCID: PMC4170054, DOI: 10.1053/j.gastro.2014.06.024.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnti-Bacterial AgentsAutophagyCaspase 1Cells, CulturedDNA-Binding ProteinsGene Expression RegulationHumansIntestinal MucosaIntestinesMacrophagesMetallothioneinMiceMice, Inbred C57BLMice, KnockoutNF-kappa BNod2 Signaling Adaptor ProteinRNA InterferenceTime FactorsToll-Like ReceptorsTranscription FactorsTransfectionZincConceptsMetal-regulatory transcription factor 1Human monocyte-derived macrophagesPattern recognition receptorsMonocyte-derived macrophagesIntracellular zincMyeloid-derived cellsSmall interfering RNAsBacterial clearanceGentamicin protection assaysInduction of autophagyTranscription factor 1Metallothionein geneMultiple genesInterfering RNAsIntestinal macrophagesSpecific proteinsOligomerization domain 2Domain 2Toll-like receptor 5AutophagyIntestinal lamina propria cellsContinuous stimulationSpecific pathogen-free facilityProtection assaysInduces expressionNOD2 Regulates CXCR3-Dependent CD8+ T Cell Accumulation in Intestinal Tissues with Acute Injury
Wu X, Lahiri A, Haines GK, Flavell RA, Abraham C. NOD2 Regulates CXCR3-Dependent CD8+ T Cell Accumulation in Intestinal Tissues with Acute Injury. The Journal Of Immunology 2014, 192: 3409-3418. PMID: 24591373, PMCID: PMC4064676, DOI: 10.4049/jimmunol.1302436.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, MonoclonalBone Marrow CellsCD3 ComplexCD8-Positive T-LymphocytesCell MovementCells, CulturedChemokine CXCL10Chemokine CXCL9ColitisDendritic CellsFlow CytometryGene ExpressionInterferon-gammaInterleukin-10Intestinal MucosaIntestinesMacrophagesMiceMice, Inbred C57BLMice, KnockoutModels, ImmunologicalNod2 Signaling Adaptor ProteinReceptors, CXCR3Reverse Transcriptase Polymerase Chain ReactionConceptsT cell accumulationT cell migrationT cell activationT cellsIntestinal injuryIntestinal tissueCell accumulationCell activationSmall intestinal lamina propriaIFN-γ neutralizationIntestinal T cellsT-cell depletionIntestinal immune homeostasisIL-10 productionT cell recruitmentHuman autoimmune diseasesIntestinal lamina propriaTreatment of miceIL-10 expressionIntestinal stromal cellsT cell outcomesCell migrationCXCR3 blockadeMAb administrationDendritic cells
2012
IL-22BP is regulated by the inflammasome and modulates tumorigenesis in the intestine
Huber S, Gagliani N, Zenewicz LA, Huber FJ, Bosurgi L, Hu B, Hedl M, Zhang W, O’Connor W, Murphy AJ, Valenzuela DM, Yancopoulos GD, Booth CJ, Cho JH, Ouyang W, Abraham C, Flavell RA. IL-22BP is regulated by the inflammasome and modulates tumorigenesis in the intestine. Nature 2012, 491: 259-263. PMID: 23075849, PMCID: PMC3493690, DOI: 10.1038/nature11535.Peer-Reviewed Original Research