2022
Hijacking of transcriptional condensates by endogenous retroviruses
Asimi V, Sampath Kumar A, Niskanen H, Riemenschneider C, Hetzel S, Naderi J, Fasching N, Popitsch N, Du M, Kretzmer H, Smith ZD, Weigert R, Walther M, Mamde S, Meierhofer D, Wittler L, Buschow R, Timmermann B, Cisse II, Ameres SL, Meissner A, Hnisz D. Hijacking of transcriptional condensates by endogenous retroviruses. Nature Genetics 2022, 54: 1238-1247. PMID: 35864192, PMCID: PMC9355880, DOI: 10.1038/s41588-022-01132-w.Peer-Reviewed Original ResearchConceptsTranscriptional condensatesEndogenous retrovirusesMurine embryonic stem cellsSingle-cell RNA-seq analysisKnockout mouse embryosRNA-seq analysisEmbryonic stem cellsMost endogenous retrovirusesERV RNAsPhase-separated dropletsNascent RNAPluripotency genesPluripotent lineageRNA polymeraseTranscription factorsReconstitution systemTriggers dissociationERV lociMouse embryosMediator coactivatorSelective degradationDisease contextsStem cellsRNASpecific depletion
2020
Epigenetic regulator function through mouse gastrulation
Grosswendt S, Kretzmer H, Smith ZD, Kumar AS, Hetzel S, Wittler L, Klages S, Timmermann B, Mukherji S, Meissner A. Epigenetic regulator function through mouse gastrulation. Nature 2020, 584: 102-108. PMID: 32728215, PMCID: PMC7415732, DOI: 10.1038/s41586-020-2552-x.Peer-Reviewed Original ResearchConceptsMutant phenotypePolycomb Repressive Complex 1Single-cell RNA sequencingComplex mutant phenotypesSingle totipotent cellRepressive Complex 1Mutant mouse embryosSpecific transcription factorsMouse gastrulationTranscriptional informationEpigenetic machineryHistone residuesMolecular functionsCellular diversityTotipotent cellsTranscriptional changesTranscription factorsEssential regulatorRNA sequencingDevelopmental roleMouse embryosGenetic templatesRegulator functionSubstantial cooperativityGastrulation
2019
Differential regulation of OCT4 targets facilitates reacquisition of pluripotency
Thakurela S, Sindhu C, Yurkovsky E, Riemenschneider C, Smith ZD, Nachman I, Meissner A. Differential regulation of OCT4 targets facilitates reacquisition of pluripotency. Nature Communications 2019, 10: 4444. PMID: 31570708, PMCID: PMC6768871, DOI: 10.1038/s41467-019-11741-5.Peer-Reviewed Original ResearchConceptsEctopic transcription factorsReacquisition of pluripotencySomatic cell reprogrammingCis-regulatory elementsTranscription factor expressionExact molecular mechanismsOCT4 targetsPluripotent stem cellsPluripotency inductionCell reprogrammingTranscription factorsSomatic cellsMolecular mechanismsDifferential regulationPluripotencyStem cellsVivo differentiationPrimary targetCellsFactor expressionFinal stepExperimental systemReprogrammingTargetDifferentiation
2014
In Vivo and In Vitro Dynamics of Undifferentiated Embryonic Cell Transcription Factor 1
Galonska C, Smith ZD, Meissner A. In Vivo and In Vitro Dynamics of Undifferentiated Embryonic Cell Transcription Factor 1. Stem Cell Reports 2014, 2: 245-252. PMID: 24672748, PMCID: PMC3964277, DOI: 10.1016/j.stemcr.2014.01.007.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiomarkersCell DifferentiationCell LineCellular ReprogrammingChromosomal Proteins, Non-HistoneDNAEmbryo, MammalianEmbryonic Stem CellsGene ExpressionGene Expression Regulation, DevelopmentalGene OrderGenes, ReporterGenetic VectorsMicePluripotent Stem CellsProtein BindingTrans-ActivatorsTranscription FactorsConceptsEmbryonic cell transcription factor 1Transcription factor 1Reporter linesDiverse rolesUndifferentiated embryonic cell transcription factor 1Factor 1Stem cell conditionsPluripotent stem cellsTargeted locusTranscription factorsDynamic regulationGerm layersBiotinylation systemUTF1Stem cellsCell conditionsPluripotencyGermlineLociRegulatorReporterBetter understandingRegulationLinesMajor interest
2012
DNA Methylation Dynamics during In Vivo Differentiation of Blood and Skin Stem Cells
Bock C, Beerman I, Lien WH, Smith ZD, Gu H, Boyle P, Gnirke A, Fuchs E, Rossi DJ, Meissner A. DNA Methylation Dynamics during In Vivo Differentiation of Blood and Skin Stem Cells. Molecular Cell 2012, 47: 633-647. PMID: 22841485, PMCID: PMC3428428, DOI: 10.1016/j.molcel.2012.06.019.Peer-Reviewed Original ResearchConceptsDNA methylationHigh-resolution DNA methylation mapsVivo differentiationLineage-associated transcription factorsAdult stem cell differentiationDNA methylation mapsDNA methylation dynamicsGenome-scale dataCellular differentiation hierarchiesDNA methylation changesStem cellsStem cell differentiationAdult stem cellsTranscription factor activationSkin stem cellsMethylation mapsGenomic distributionMethylation dynamicsDifferentiation hierarchyEpigenetic regulationBlood lineagesTranscription factorsTissue homeostasisMethylation changesGene expression
2009
Unbiased Reconstruction of a Mammalian Transcriptional Network Mediating Pathogen Responses
Amit I, Garber M, Chevrier N, Leite AP, Donner Y, Eisenhaure T, Guttman M, Grenier JK, Li W, Zuk O, Schubert LA, Birditt B, Shay T, Goren A, Zhang X, Smith Z, Deering R, McDonald RC, Cabili M, Bernstein BE, Rinn JL, Meissner A, Root DE, Hacohen N, Regev A. Unbiased Reconstruction of a Mammalian Transcriptional Network Mediating Pathogen Responses. Science 2009, 326: 257-263. PMID: 19729616, PMCID: PMC2879337, DOI: 10.1126/science.1179050.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBacteriaChromatin Assembly and DisassemblyDendritic CellsDNA, Single-StrandedFeedback, PhysiologicalGene Expression ProfilingGene Expression RegulationGene Regulatory NetworksInflammationLipopeptidesLipopolysaccharidesMiceMice, Inbred C57BLPoly I-CRNA-Binding ProteinsToll-Like ReceptorsTranscription FactorsTranscription, GeneticVirusesConceptsTranscriptional responseRegulatory networksMajor transcriptional responsePrimary mammalian cellsCellular transcriptional responsesPathogen-sensing pathwaysChromatin modifiersPathogen responseCandidate regulatorsCore regulatorsMammalian cellsTranscription factorsGenomic dataGene expressionRegulatory functionsUnbiased approachUnbiased strategyRegulatorUnbiased reconstructionPrimary dendritic cellsCellsRNAProteinPathwayPathogens