2022
A transcriptional cycling model recapitulates chromatin-dependent features of noisy inducible transcription
Bullock ME, Moreno-Martinez N, Miller-Jensen K. A transcriptional cycling model recapitulates chromatin-dependent features of noisy inducible transcription. PLOS Computational Biology 2022, 18: e1010152. PMID: 36084132, PMCID: PMC9491597, DOI: 10.1371/journal.pcbi.1010152.Peer-Reviewed Original ResearchConceptsGene expression noiseExpression noiseTranscriptional burstingPromoter statesDifferent chromatin environmentsChromatin environmentChromatin statePause releaseTranscription factor NFChromatin accessibilityChromatin remodelingTranscriptional noiseChromatin locationsInducible transcriptionSubstantial phenotypic heterogeneityTranscriptional activationTranscription factorsTranscript distributionPolymerase complexTarget genesPolymerase bindingGene expressionPromoter activityViral activationBiological processes
2018
Myofibroblast proliferation and heterogeneity are supported by macrophages during skin repair
Shook BA, Wasko RR, Rivera-Gonzalez GC, Salazar-Gatzimas E, López-Giráldez F, Dash BC, Muñoz-Rojas AR, Aultman KD, Zwick RK, Lei V, Arbiser JL, Miller-Jensen K, Clark DA, Hsia HC, Horsley V. Myofibroblast proliferation and heterogeneity are supported by macrophages during skin repair. Science 2018, 362 PMID: 30467144, PMCID: PMC6684198, DOI: 10.1126/science.aar2971.Peer-Reviewed Original ResearchConceptsDifferential gene expressionAdipocyte precursorsExtracellular matrix moleculesGene expressionTransplantation assaysMatrix moleculesFactor C.Factor 1Insulin-like growth factor-1Cell populationsTissue resilienceDistinct subpopulationsGrowth factor-1Profibrotic cellsTissue repairMultiple mouse modelsECM depositionSkin repairTissue dysfunctionProliferationMouse modelMyofibroblastsWoundingMacrophagesRepairNF-κB-Chromatin Interactions Drive Diverse Phenotypes by Modulating Transcriptional Noise
Wong VC, Bass VL, Bullock ME, Chavali AK, Lee REC, Mothes W, Gaudet S, Miller-Jensen K. NF-κB-Chromatin Interactions Drive Diverse Phenotypes by Modulating Transcriptional Noise. Cell Reports 2018, 22: 585-599. PMID: 29346759, PMCID: PMC5812697, DOI: 10.1016/j.celrep.2017.12.080.Peer-Reviewed Original ResearchConceptsTranscriptional noiseIntegration sitesDiverse phenotypesRNA polymerase II regulationNoisy gene expressionGenomic integration sitesLive-cell imagingNF-κB activationChromatin environmentChromatin stateViral activationChromatin interactionsTranscript abundanceTranscription factor nuclear factor κBDivergent phenotypesGene expressionNoisy expressionNF-κBTranscript numbersNuclear factor κBPhenotypeTumor necrosis factorFactor κBActivationExpression
2015
Distinct promoter activation mechanisms modulate noise-driven HIV gene expression
Chavali AK, Wong VC, Miller-Jensen K. Distinct promoter activation mechanisms modulate noise-driven HIV gene expression. Scientific Reports 2015, 5: 17661. PMID: 26666681, PMCID: PMC4678399, DOI: 10.1038/srep17661.Peer-Reviewed Original Research
2013
Genetic Selection for Context-Dependent Stochastic Phenotypes: Sp1 and TATA Mutations Increase Phenotypic Noise in HIV-1 Gene Expression
Miller-Jensen K, Skupsky R, Shah PS, Arkin AP, Schaffer DV. Genetic Selection for Context-Dependent Stochastic Phenotypes: Sp1 and TATA Mutations Increase Phenotypic Noise in HIV-1 Gene Expression. PLOS Computational Biology 2013, 9: e1003135. PMID: 23874178, PMCID: PMC3708878, DOI: 10.1371/journal.pcbi.1003135.Peer-Reviewed Original ResearchConceptsGenomic contextGene expressionSp1 mutationPromoter sequencesStochastic phenotypeEukaryotic gene expressionForward genetic screenBasal expressionHIV-1 gene expressionViral gene expressionCore promoter regionSingle-cell experimentsGene expression levelsGenetic screenHIV LTR promoterPhenotypic noiseAbsence of TatTranscription factorsPromoter elementsGenomic integrationPositive feedback loopGenetic elementsRelevant model systemPromoter regionGenetic selection
2012
Chromatin accessibility at the HIV LTR promoter sets a threshold for NF-κB mediated viral gene expression
Miller-Jensen K, Dey SS, Pham N, Foley JE, Arkin AP, Schaffer DV. Chromatin accessibility at the HIV LTR promoter sets a threshold for NF-κB mediated viral gene expression. Integrative Biology 2012, 4: 661-671. PMID: 22555315, PMCID: PMC3362694, DOI: 10.1039/c2ib20009k.Peer-Reviewed Original ResearchConceptsChromatin accessibilityGene expressionChromatin environmentIntegration sitesHigher-order chromatin structureDifferent genomic environmentsLTR promoterRepressive histone marksDifferent chromatin environmentsOrder chromatin structureGene expression regulationTranscription factor inputsSame transcription factorDifferential gene expressionLevels of RelASelective gene expressionViral gene expressionViral integration sitesTranscription factor activationHIV gene regulationGenomic environmentHIV LTR promoterHistone marksChromatin featuresChromatin structure