2024
Human milk supports robust intestinal organoid growth, differentiation, and homeostatic cytokine production
Smith L, Santiago E, Eke C, Gu W, Wang W, Llivichuzhca-Loja D, Kehoe T, St Denis K, Strine M, Taylor S, Tseng G, Konnikova L. Human milk supports robust intestinal organoid growth, differentiation, and homeostatic cytokine production. Gastro Hep Advances 2024 DOI: 10.1016/j.gastha.2024.07.007.Peer-Reviewed Original ResearchHuman milk supplementationTNF-related apoptosis inducing ligandDonor human milkLevels of leukemia inhibitory factorNecrotizing enterocolitisCytokine productionInflammatory immune signaturesComplications of prematurityHuman milkChromogranin A stainingSevere gastrointestinal complicationsMilk supplementationCell cycle-promoting genesIntestinal organoidsApoptosis inducing ligandIntestinal epithelial proliferationIntestinal epithelial growthGrowth factor analysisCleaved caspase 3Preterm infantsGestational ageLeukemia inhibitory factorImmune signaturesImmune landscapeHydrolyzed formulaSingle-cell atlas of the small intestine throughout the human lifespan demonstrates unique features of fetal immune cells
Gu W, Eke C, Gonzalez Santiago E, Olaloye O, Konnikova L. Single-cell atlas of the small intestine throughout the human lifespan demonstrates unique features of fetal immune cells. Mucosal Immunology 2024 PMID: 38555026, DOI: 10.1016/j.mucimm.2024.03.011.Peer-Reviewed Original ResearchImmune cellsDevelopment of mucosal immunityComplex immune landscapeFetal immune cellsSevere intestinal complicationsComplications of prematurityMemory T cellsAdaptive immune cellsMucosal immune cellsSmall intestineT cell statesMemory T cell statesStem-like propertiesNecrotizing enterocolitisNeonatal samplesMyeloid populationsImmune landscapeFetal samplesT cellsExpression of activationPostnatal samplesMucosal diseaseMucosal immunitySingle-cell RNA sequencingSingle-cell atlas
2022
Immune landscape of human placental villi using single-cell analysis
Toothaker JM, Olaloye O, McCourt BT, McCourt CC, Silva TN, Case RM, Liu P, Yimlamai D, Tseng G, Konnikova L. Immune landscape of human placental villi using single-cell analysis. Development 2022, 149 PMID: 35050308, PMCID: PMC8935213, DOI: 10.1242/dev.200013.Peer-Reviewed Original ResearchMeSH KeywordsAntigens, CDAntigens, Differentiation, MyelomonocyticB7-H1 AntigenB-LymphocytesChorionic VilliFemaleFetusFlow CytometryHLA-DR AntigensHumansKiller Cells, NaturalLeukocyte Common AntigensLymphocyte ActivationMacrophagesMemory T CellsPlacentaPregnancyPregnancy Trimester, SecondReceptors, Cell SurfaceReceptors, ChemokineSingle-Cell AnalysisT-LymphocytesConceptsT cellsHuman placental villiPlacental villiImmune systemFetal immune systemMaternal immune systemFetal immune cellsAdult T-cellT cell receptor stimulationCell receptor stimulationHealthy pregnancyImmune landscapeMemory phenotypeImmune cellsFetal organsEnhanced proliferative capacityReceptor stimulationMultiple subtypesPV tissueComplex immune systemImaging modalitiesMass cytometryProliferative capacityMaternal mechanismsRecent reports
2020
An RTEL1 Mutation Links to Infantile-Onset Ulcerative Colitis and Severe Immunodeficiency
Ziv A, Werner L, Konnikova L, Awad A, Jeske T, Hastreiter M, Mitsialis V, Stauber T, Wall S, Kotlarz D, Klein C, Snapper SB, Tzfati Y, Weiss B, Somech R, Shouval DS. An RTEL1 Mutation Links to Infantile-Onset Ulcerative Colitis and Severe Immunodeficiency. Journal Of Clinical Immunology 2020, 40: 1010-1019. PMID: 32710398, DOI: 10.1007/s10875-020-00829-z.Peer-Reviewed Original ResearchConceptsInflammatory bowel diseasePeripheral blood mononuclear cellsUlcerative colitisInfantile-onset inflammatory bowel diseasePatients' peripheral blood mononuclear cellsInnate immune subsetsPneumocystis jiroveci pneumoniaUnique clinical manifestationsBlood mononuclear cellsNaïve T cellsMass cytometry analysisHoyeraal-Hreidarsson syndromeAshkenazi Jewish patientsWhole-exome sequencingDifferent monogenic disordersImmunologic alterationsJiroveci pneumoniaBowel diseaseImmune subsetsImmunological alterationsImmune landscapeCarriage rateClinical manifestationsMononuclear cellsControl subjects
2019
Maturation of the Human Intestinal Immune System Occurs Early in Fetal Development
Stras SF, Werner L, Toothaker JM, Olaloye OO, Oldham AL, McCourt CC, Lee YN, Rechavi E, Shouval DS, Konnikova L. Maturation of the Human Intestinal Immune System Occurs Early in Fetal Development. Developmental Cell 2019, 51: 357-373.e5. PMID: 31607651, DOI: 10.1016/j.devcel.2019.09.008.Peer-Reviewed Original ResearchMeSH KeywordsB-LymphocytesCell ProliferationClone CellsCytokinesFemaleFetal DevelopmentFetusHumansImmune SystemImmunity, MucosalImmunologic MemoryImmunophenotypingInfant, NewbornIntestinesPregnancyPregnancy Trimester, SecondReceptors, Antigen, B-CellReceptors, Antigen, T-CellT-LymphocytesV(D)J RecombinationConceptsInnate lymphoid cellsGestational ageIntestinal immunityDendritic cellsB cellsHuman intestinal immune systemAdaptive immune landscapeIntestinal immune systemNatural killer cellsWeeks gestational ageTransitional B cellsB cell maturityT cell receptorComplex innateImmune atlasEarly life developmentImmune landscapeKiller cellsTCR repertoireLymphoid cellsFetal developmentImmune systemInnate immunityCell receptorMass cytometry