0000000000027939

AUTHOR

Kai-michael Toellner

showing 3 related works from this author

Rhythmicity of Intestinal IgA Responses Confers Oscillatory Commensal Microbiota Mutualism

2021

ABSTRACTMutualistic interactions with the commensal microbiota are enforced through a range of immune responses that confer metabolic benefits for the host and ensure tissue health and homeostasis. Immunoglobulin (Ig)A responses directly determine the composition of commensal species that colonize the intestinal tract but require significant metabolic resources to fuel antibody production by tissue-resident plasma cells. Here we demonstrate IgA responses are subject to diurnal regulation by dietary-derived metabolic cues and a cell-intrinsic circadian clock. Rhythmicity in IgA secretion conferred oscillatory patterns on the commensal microbial community and its associated metabolic activity…

Mutualism (biology)Immune systembiologyHost (biology)Circadian clockImmunologybiology.proteinSecretionCircadian rhythmAntibodyHomeostasis
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Germinal center B cells govern their own fate via antibody feedback

2013

High-affinity antibodies reenter germinal centers (GCs) and limit antigen access, thus causing sustained directional evolution in GCs toward higher-affinity antibody production.

endocrine systemImmunologyB-cell receptorAntibody AffinityPlasma cellBiologyAntibodiesAffinity maturationMice03 medical and health sciences0302 clinical medicinehealth services administrationpolycyclic compoundsmedicineAnimalsImmunology and AllergyCell LineageAntigen-presenting cell030304 developmental biologyB-Lymphocytes0303 health sciencesB cell selectionBrief Definitive ReportGerminal centerGerminal CenterMolecular biology3. Good healthMice Inbred C57BLB-1 cellmedicine.anatomical_structurePolyclonal B cell responsesense organshormones hormone substitutes and hormone antagonistsDendritic Cells Follicular030215 immunologyJournal of Experimental Medicine
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Pre-conception maternal helminth infection transfers via nursing long-lasting cellular immunity against helminths to offspring

2019

Mothers transfer immune cells via breastfeeding to provide offspring with long-term protection from parasitic infection.

Long lastingCD4-Positive T-LymphocytesMaleCellular immunityOffspring[SDV]Life Sciences [q-bio]animal diseasesImmunologyAntibodies Helminthchemical and pharmacologic phenomenaReceptors Cell SurfaceBiology03 medical and health sciences0302 clinical medicineImmune systemTh2 CellsNursingImmunityPregnancymedicineHelminthsAnimalsLactationImprinting (psychology)Research Articles030304 developmental biologyStrongylida Infections0303 health sciencesPregnancyB-LymphocytesImmunity CellularMice Inbred BALB CMultidisciplinarySciAdv r-articlesbiochemical phenomena metabolism and nutritionmedicine.disease3. Good healthAnimals SucklingMice Inbred C57BLbacteriaFemaleNippostrongylusImmunity Maternally-Acquired030215 immunologyResearch ArticleScience Advances
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