2025
Translocating gut pathobiont Enterococcus gallinarum induces TH17 and IgG3 anti-RNA–directed autoimmunity in mouse and human
Gronke K, Nguyen M, Fuhrmann H, Santamaria de Souza N, Schumacher J, Pereira M, Löschberger U, Brinkhege A, Becker N, Yang Y, Sonnert N, Leopold S, Martin A, von Münchow-Klein L, Pessoa Rodrigues C, Cansever D, Hallet R, Richter K, Schubert D, Daniel G, Dylus D, Forkel M, Schwinge D, Schramm C, Redanz S, Lassen K, Manfredo Vieira S, Piali L, Palm N, Bieniossek C, Kriegel M. Translocating gut pathobiont Enterococcus gallinarum induces TH17 and IgG3 anti-RNA–directed autoimmunity in mouse and human. Science Translational Medicine 2025, 17: eadj6294. PMID: 39908347, DOI: 10.1126/scitranslmed.adj6294.Peer-Reviewed Original ResearchConceptsSystemic lupus erythematosusAutoimmune diseasesToll-like receptor 8Gut pathobiontsHuman adaptive immune responseLong-term sequelaeAdaptive immune responsesHuman T cellsChronic autoimmune diseaseHuman monocyte activationContribution to autoimmunityAutoimmune hepatitisAutoantibody titersAnti-<i>E.Autoimmune pathophysiologyLupus modelT-helperLifelong immunosuppressionTargeted therapyT cellsDisease activityLupus erythematosusAutoantibody responseMonocyte activationImmune response
2024
Mucosal sugars delineate pyrazine vs pyrazinone autoinducer signaling in Klebsiella oxytoca
Hamchand R, Wang K, Song D, Palm N, Crawford J. Mucosal sugars delineate pyrazine vs pyrazinone autoinducer signaling in Klebsiella oxytoca. Nature Communications 2024, 15: 8902. PMID: 39406708, PMCID: PMC11480411, DOI: 10.1038/s41467-024-53185-6.Peer-Reviewed Original ResearchConceptsK. oxytocaGeneral carbohydrate metabolismVirulence factor productionPLP-dependent enzymesAssociated with gutEnterobactin biosynthesisAutoinducer signalBacterial virulenceKlebsiella oxytocaSpecific carbohydratesHost immune responseCarbohydrate metabolismAutoinducerMolecular signalsVirulenceHistamine receptor H4BiosynthesisHost signalAcquisition responsesProtease inhibitorsPathwayHostLung pathologyLung isolationImmune response
2013
Bee Venom Phospholipase A2 Induces a Primary Type 2 Response that Is Dependent on the Receptor ST2 and Confers Protective Immunity
Palm NW, Rosenstein RK, Yu S, Schenten DD, Florsheim E, Medzhitov R. Bee Venom Phospholipase A2 Induces a Primary Type 2 Response that Is Dependent on the Receptor ST2 and Confers Protective Immunity. Immunity 2013, 39: 976-985. PMID: 24210353, PMCID: PMC3852615, DOI: 10.1016/j.immuni.2013.10.006.Peer-Reviewed Original ResearchMeSH KeywordsAnaphylaxisAnimalsBee VenomsCrotalid VenomsGenes, ReporterImmunity, InnateImmunoglobulin EImmunoglobulin GInsect ProteinsInterleukin-1 Receptor-Like 1 ProteinInterleukin-33Interleukin-4InterleukinsLymphocyte ActivationLysophospholipidsMelittenMembrane LipidsMiceMice, Inbred BALB CMice, KnockoutMyeloid Differentiation Factor 88OvalbuminPhospholipases A2PhospholipidsReceptors, IgEReceptors, InterleukinTh2 CellsConceptsInnate immune systemBee venom phospholipase A2Components of venomPhospholipase A2Immune responseGroup 2 Innate Lymphoid Cell ActivationVenom phospholipase A2Immune systemInnate lymphoid cell activationType 2 immune responsesLymphoid cell activationType 2 responsesProtective immune responseConfer protective immunityIgE responseInterleukin-33Receptor ST2Protective immunityCell type responsesCell activationLethal doseMajor allergenBee venomAllergensVenom toxins
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