2024
Memory B cell subsets have divergent developmental origins that are coupled to distinct imprinted epigenetic states
Callahan D, Smita S, Joachim S, Hoehn K, Kleinstein S, Weisel F, Chikina M, Shlomchik M. Memory B cell subsets have divergent developmental origins that are coupled to distinct imprinted epigenetic states. Nature Immunology 2024, 25: 562-575. PMID: 38200277, DOI: 10.1038/s41590-023-01721-9.Peer-Reviewed Original ResearchGerminal center B cellsDistinct genomic featuresDP cellsDevelopmental originsEpigenetic stateFunctional diversityEpigenetic patternsTranscriptional profilingGenomic featuresDN cellsDistinct developmental historiesB cellsReporter miceFunctional responseCellsMemory B cellsChromatinB cell subsetsCell-dependent responsesMultiple approachesProgenyDiversityT cell-dependent responsesGerminal centersDevelopmental history
2017
Polycomb Repressive Complex 2-Mediated Chromatin Repression Guides Effector CD8+ T Cell Terminal Differentiation and Loss of Multipotency
Gray SM, Amezquita RA, Guan T, Kleinstein SH, Kaech SM. Polycomb Repressive Complex 2-Mediated Chromatin Repression Guides Effector CD8+ T Cell Terminal Differentiation and Loss of Multipotency. Immunity 2017, 46: 596-608. PMID: 28410989, PMCID: PMC5457165, DOI: 10.1016/j.immuni.2017.03.012.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCD8-Positive T-LymphocytesCell DifferentiationChromatinEnhancer of Zeste Homolog 2 ProteinFlow CytometryForkhead Box Protein O1Gene ExpressionHistonesImmunoblottingImmunologic MemoryLysineMethylationMice, Inbred C57BLMice, KnockoutMice, TransgenicModels, ImmunologicalMultipotent Stem CellsPolycomb Repressive Complex 2Reverse Transcriptase Polymerase Chain ReactionConceptsH3K27me3 depositionPolycomb repressive complex 2T cell terminal differentiationRepressive complex 2MP cellsLoss of multipotencyPro-survival genesCell terminal differentiationFate restrictionPermissive chromatinEpigenetic silencingMemory cell potentialDevelopmental plasticityCell developmentTerminal differentiationCell differentiationGenesPrecursor cellsFOXO1 expressionChromatinMemory precursor cellsMultipotencyCell maturationClonal expansionCells
2016
RAG1 targeting in the genome is dominated by chromatin interactions mediated by the non-core regions of RAG1 and RAG2
Maman Y, Teng G, Seth R, Kleinstein SH, Schatz DG. RAG1 targeting in the genome is dominated by chromatin interactions mediated by the non-core regions of RAG1 and RAG2. Nucleic Acids Research 2016, 44: 9624-9637. PMID: 27436288, PMCID: PMC5175335, DOI: 10.1093/nar/gkw633.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesChromatinChromatin ImmunoprecipitationGenomeGenomic InstabilityHigh-Throughput Nucleotide SequencingHistonesHomeodomain ProteinsHumansMiceNucleotide MotifsPromoter Regions, GeneticProtein BindingProtein Interaction Domains and MotifsRecombination, GeneticV(D)J RecombinationConceptsAntigen receptor lociNon-core regionsReceptor locusPlant homeodomain (PHD) fingerChIP-seq dataWide bindingChromatin interactionsAdditional chromatinLysine 4Off-target activityGenomic featuresHistone 3Novel roleRAG1LociChromatinGenomeRAG2Observed patternsDistinct modesBindingH3K4me3H3K27acEndonucleaseRelative contribution