2019
Microfluidic platform enables live-cell imaging of signaling and transcription combined with multiplexed secretion measurements in the same single cells
Ramji R, Alexander AF, Muñoz-Rojas AR, Kellman LN, Miller-Jensen K. Microfluidic platform enables live-cell imaging of signaling and transcription combined with multiplexed secretion measurements in the same single cells. Integrative Biology 2019, 11: 142-153. PMID: 31242304, PMCID: PMC8672722, DOI: 10.1093/intbio/zyz013.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodiesCell CommunicationChemokine CCL2Chemokine CCL3Chemokine CCL5Equipment DesignLab-On-A-Chip DevicesLipopolysaccharidesMacrophagesMiceMice, Inbred C57BLMicrofluidicsRAW 264.7 CellsSignal TransductionTranscription Factor RelATranscription, GeneticTumor Necrosis Factor-alphaConceptsLive-cell imagingCell variabilitySame single cellSingle-cell assaysTranscription dynamicsBacterial component lipopolysaccharideDownstream responsesPathogenic assaultFluorescent reportersProtein secretionSingle cellsCell processesBiological sourcesCCL3 secretionRelative levelsCellsInnate immune cellsTranslocation dynamicsBiological stepC secretionTranscriptionSecretionCCL5 secretionRelAReporterFold-Change Detection of NF-κB at Target Genes with Different Transcript Outputs
Wong VC, Mathew S, Ramji R, Gaudet S, Miller-Jensen K. Fold-Change Detection of NF-κB at Target Genes with Different Transcript Outputs. Biophysical Journal 2019, 116: 709-724. PMID: 30704857, PMCID: PMC6382958, DOI: 10.1016/j.bpj.2019.01.011.Peer-Reviewed Original ResearchConceptsFold-change detectionTarget genesTranscript outputStress-responsive gene transcriptionSingle-cell dataNF-κB target genesRelA nuclear translocationLive-cell imagingMicrofluidic cell-trapping deviceLow-abundance transcriptsTranscription factor nuclear factorNF-κBRNA FISHTranscriptional outputΚB motifTranscript abundanceGene transcriptionTranscriptionTranscript numbersCell trap deviceJurkat TCell typesGenesNF-κB signalingMultiple biological mechanisms
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