2010
MicroRNA miR-125a controls hematopoietic stem cell number
Guo S, Lu J, Schlanger R, Zhang H, Wang JY, Fox MC, Purton LE, Fleming HH, Cobb B, Merkenschlager M, Golub TR, Scadden DT. MicroRNA miR-125a controls hematopoietic stem cell number. Proceedings Of The National Academy Of Sciences Of The United States Of America 2010, 107: 14229-14234. PMID: 20616003, PMCID: PMC2922532, DOI: 10.1073/pnas.0913574107.Peer-Reviewed Original ResearchConceptsHematopoietic stem cellsStem cell pool sizeStem cell stateLong-term hematopoietic stem cellsCell-autonomous mannerStem cellsStem cell populationCell pool sizeMiR-125aStem cell numbersHematopoietic stem cell numbersEnzyme DicerImmature hematopoietic progenitorsHematopoietic differentiationMutant animalsCell statesProgenitor cell apoptosisMicroRNA processing enzyme DicerMicroRNA clusterProapoptotic genesHSPC populationsHematopoietic expansionSpecific microRNAsUnique microRNAsHSPC apoptosisLineage-Specific Transcriptional Regulation of DICER by MITF in Melanocytes
Levy C, Khaled M, Robinson KC, Veguilla RA, Chen PH, Yokoyama S, Makino E, Lu J, Larue L, Beermann F, Chin L, Bosenberg M, Song JS, Fisher DE. Lineage-Specific Transcriptional Regulation of DICER by MITF in Melanocytes. Cell 2010, 141: 994-1005. PMID: 20550935, PMCID: PMC2897150, DOI: 10.1016/j.cell.2010.05.004.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosis Regulatory ProteinsBcl-2-Like Protein 11Cell DifferentiationCell SurvivalCells, CulturedEpidermal CellsGene Expression RegulationGene Knockdown TechniquesHair FollicleHumansMelanocytesMembrane ProteinsMiceMice, Inbred C57BLMicrophthalmia-Associated Transcription FactorMicroRNAsPromoter Regions, GeneticProto-Oncogene ProteinsRibonuclease IIITranscription, GeneticUp-RegulationConceptsTranscriptional start siteLineage-specific transcriptional regulationDicer-dependent processingRegulatory element upstreamMITF bindsTranscriptional regulationMature miRNAsProapoptotic regulatorsMiRNA regulationStart siteMelanocyte survivalCentral regulatorDicerMelanocyte differentiationElement upstreamMiRNA expressionCell typesDicer expressionMiRNAsTranscriptional targetingMITFRegulatorMelanocytesExpressionRegulation
2009
Dicer1 functions as a haploinsufficient tumor suppressor
Kumar MS, Pester RE, Chen CY, Lane K, Chin C, Lu J, Kirsch DG, Golub TR, Jacks T. Dicer1 functions as a haploinsufficient tumor suppressor. Genes & Development 2009, 23: 2700-2704. PMID: 19903759, PMCID: PMC2788328, DOI: 10.1101/gad.1848209.Peer-Reviewed Original ResearchConceptsHaploinsufficient tumor suppressor geneTumor suppressor geneSuppressor geneDICER1 functionHaploinsufficient tumor suppressorCopy number dataMiRNA biogenesisMiRNA processingSingle copyGenetic basisDicer1 deletionTumor suppressorInhibition of tumorigenesisHuman cancersGenesFrequent deletionsDeletionDICER1DICER1 expressionHomozygous deletionHuman tumorsAllelesReduced survivalFull lossNumber data
2008
Human multipotent stromal cells from bone marrow and microRNA: Regulation of differentiation and leukemia inhibitory factor expression
Oskowitz AZ, Lu J, Penfornis P, Ylostalo J, McBride J, Flemington EK, Prockop DJ, Pochampally R. Human multipotent stromal cells from bone marrow and microRNA: Regulation of differentiation and leukemia inhibitory factor expression. Proceedings Of The National Academy Of Sciences Of The United States Of America 2008, 105: 18372-18377. PMID: 19011087, PMCID: PMC2587615, DOI: 10.1073/pnas.0809807105.Peer-Reviewed Original ResearchConceptsHuman multipotent stromal cellsMultipotent stromal cellsAdipogenic differentiationRegulation of differentiationExpression of DicerStromal cellsExpression analysisHMSC differentiationEarly transcriptsFactor expressionMiRNAsLeukemia inhibitory factor expressionOsteogenic differentiationDifferentiationBone marrowExpressionDicerDroshaCellsSilico modelsMicroRNAsMiRNATranscriptsShRNAsEnzymeDicer-dependent pathways regulate chondrocyte proliferation and differentiation
Kobayashi T, Lu J, Cobb BS, Rodda SJ, McMahon AP, Schipani E, Merkenschlager M, Kronenberg HM. Dicer-dependent pathways regulate chondrocyte proliferation and differentiation. Proceedings Of The National Academy Of Sciences Of The United States Of America 2008, 105: 1949-1954. PMID: 18238902, PMCID: PMC2538863, DOI: 10.1073/pnas.0707900105.Peer-Reviewed Original ResearchConceptsDicer-dependent pathwaysSkeletal developmentBiogenesis of miRNAsMiRNA target genesMammalian skeletal developmentSmall noncoding RNAsSkeletal growth defectsChondrocyte proliferationSuppress gene expressionNormal skeletal developmentDiverse organismsCritical roleGrowth defectNoncoding RNAsRNA abundanceGene expressionExpression changesMicroarray analysisBiological processesSignaling systemMiRNAsBase pairingDistinct mechanismsIhh-PTHrPHypertrophic chondrocytes
2007
Impaired microRNA processing enhances cellular transformation and tumorigenesis
Kumar MS, Lu J, Mercer KL, Golub TR, Jacks T. Impaired microRNA processing enhances cellular transformation and tumorigenesis. Nature Genetics 2007, 39: 673-677. PMID: 17401365, DOI: 10.1038/ng2003.Peer-Reviewed Original ResearchConceptsTarget mRNA transcriptsShort hairpin RNAGlobal repressionCellular transformationMRNA transcriptsMiRNA processing machinerySmall noncoding RNAsMature miRNA expressionMiRNA lossMiRNA maturationMiRNA processingMicroRNA processingNoncoding RNAsUndifferentiated stateProcessing machineryMiRNA expressionHairpin RNAConditional deletionTumorigenesisMiRNA levelsCancer cellsTumor developmentRepressionTranscriptsRNA