2023
Live imaging reveals chromatin compaction transitions and dynamic transcriptional bursting during stem cell differentiation in vivo
May D, Yun S, Gonzalez D, Park S, Chen Y, Lathrop E, Cai B, Xin T, Zhao H, Wang S, Gonzalez L, Cockburn K, Greco V. Live imaging reveals chromatin compaction transitions and dynamic transcriptional bursting during stem cell differentiation in vivo. ELife 2023, 12: e83444. PMID: 36880644, PMCID: PMC10027315, DOI: 10.7554/elife.83444.Peer-Reviewed Original ResearchConceptsStem cell differentiationCell differentiationStem cell compartmentCompaction changesChromatin compaction statesDynamic transcriptional statesCell compartmentChromatin architectureCell cycle statusChromatin rearrangementNascent RNATranscriptional burstingTranscriptional statesLive imagingTissue contextGene expressionDifferentiating cellsGlobal remodelingIndividual cellsCycle statusStem cellsDifferentiation statusDifferentiationCellsMorphological changes
2022
Gradual differentiation uncoupled from cell cycle exit generates heterogeneity in the epidermal stem cell layer
Cockburn K, Annusver K, Gonzalez D, Ganesan S, May D, Mesa K, Kawaguchi K, Kasper M, Greco V. Gradual differentiation uncoupled from cell cycle exit generates heterogeneity in the epidermal stem cell layer. Nature Cell Biology 2022, 24: 1692-1700. PMID: 36357619, PMCID: PMC9729105, DOI: 10.1038/s41556-022-01021-8.Peer-Reviewed Original ResearchConceptsCell cycle exitCycle exitStem cell layerUndifferentiated stem cellsStem cell compartmentDaughter cellsDifferentiated populationsDifferentiation genesTranscriptional changesCell divisionMultiple progenitorsStemness genesCells transitStem cellsCell compartmentCell layerCell poolDifferentiationRegenerative tissueGenesSkin epidermisGradual differentiationMulti-day processesCells
2018
Flexible fate determination ensures robust differentiation in the hair follicle
Xin T, Gonzalez D, Rompolas P, Greco V. Flexible fate determination ensures robust differentiation in the hair follicle. Nature Cell Biology 2018, 20: 1361-1369. PMID: 30420661, PMCID: PMC6314017, DOI: 10.1038/s41556-018-0232-y.Peer-Reviewed Original ResearchConceptsSingle-cell levelStem cellsStem cell differentiationGerm stem cellsTissue architectureMultiple cell typesFate determinationDetermination mechanismTissue homeostasisSame stem cellsCommon progenitorDifferentiation outcomesDifferentiation stimuliDifferentiation lineageCell differentiationCell typesNormal differentiationWnt activationHair folliclesUnanticipated flexibilityDifferentiationRobust differentiationProgenitorsCellsUninjured conditionHomeostatic Epidermal Stem Cell Self-Renewal Is Driven by Local Differentiation
Mesa KR, Kawaguchi K, Cockburn K, Gonzalez D, Boucher J, Xin T, Klein AM, Greco V. Homeostatic Epidermal Stem Cell Self-Renewal Is Driven by Local Differentiation. Cell Stem Cell 2018, 23: 677-686.e4. PMID: 30269903, PMCID: PMC6214709, DOI: 10.1016/j.stem.2018.09.005.Peer-Reviewed Original Research
2017
Correction of aberrant growth preserves tissue homeostasis
Brown S, Pineda CM, Xin T, Boucher J, Suozzi KC, Park S, Matte-Martone C, Gonzalez DG, Rytlewski J, Beronja S, Greco V. Correction of aberrant growth preserves tissue homeostasis. Nature 2017, 548: 334-337. PMID: 28783732, PMCID: PMC5675114, DOI: 10.1038/nature23304.Peer-Reviewed Original Research
2016
The thrill of scientific discovery and leadership with my group
Greco V. The thrill of scientific discovery and leadership with my group. Molecular Biology Of The Cell 2016, 27: 3185-3188. PMID: 27799490, PMCID: PMC5170847, DOI: 10.1091/mbc.e16-06-0373.Peer-Reviewed Original ResearchLive imaging of stem cells: answering old questions and raising new ones
Park S, Greco V, Cockburn K. Live imaging of stem cells: answering old questions and raising new ones. Current Opinion In Cell Biology 2016, 43: 30-37. PMID: 27474806, PMCID: PMC5154884, DOI: 10.1016/j.ceb.2016.07.004.Peer-Reviewed Original ResearchSpatiotemporal coordination of stem cell commitment during epidermal homeostasis
Rompolas P, Mesa KR, Kawaguchi K, Park S, Gonzalez D, Brown S, Boucher J, Klein AM, Greco V. Spatiotemporal coordination of stem cell commitment during epidermal homeostasis. Science 2016, 352: 1471-1474. PMID: 27229141, PMCID: PMC4958018, DOI: 10.1126/science.aaf7012.Peer-Reviewed Original ResearchHardwiring Stem Cell Communication through Tissue Structure
Xin T, Greco V, Myung P. Hardwiring Stem Cell Communication through Tissue Structure. Cell 2016, 164: 1212-1225. PMID: 26967287, PMCID: PMC4805424, DOI: 10.1016/j.cell.2016.02.041.Peer-Reviewed Original Research
2015
Stem Cells Show Parental Control
Myung P, Greco V. Stem Cells Show Parental Control. Cell 2015, 162: 476-477. PMID: 26232219, DOI: 10.1016/j.cell.2015.06.030.Peer-Reviewed Original ResearchThe Dynamic Duo: Niche/Stem Cell Interdependency
Mesa KR, Rompolas P, Greco V. The Dynamic Duo: Niche/Stem Cell Interdependency. Stem Cell Reports 2015, 4: 961-966. PMID: 26028534, PMCID: PMC4471832, DOI: 10.1016/j.stemcr.2015.05.001.Peer-Reviewed Original ResearchConceptsNormal tissue homeostasisStem cell behaviorStem cell interactionsTissue homeostasisCellular turnoverPathological settingsCell behaviorStem cellsMost tissuesFundamental processesDynamic duoCell interactionsModel systemNew cellsCell productionTissue regenerationCellsTissueLive miceOrganismsHomeostasisTremendous advancesImaging approachNovel imaging approachBasic understandingNiche-induced cell death and epithelial phagocytosis regulate hair follicle stem cell pool
Mesa KR, Rompolas P, Zito G, Myung P, Sun TY, Brown S, Gonzalez DG, Blagoev KB, Haberman AM, Greco V. Niche-induced cell death and epithelial phagocytosis regulate hair follicle stem cell pool. Nature 2015, 522: 94-97. PMID: 25849774, PMCID: PMC4457634, DOI: 10.1038/nature14306.Peer-Reviewed Original Research
2014
Stem Cells in the Wild: Understanding the World of Stem Cells through Intravital Imaging
Brown S, Greco V. Stem Cells in the Wild: Understanding the World of Stem Cells through Intravital Imaging. Cell Stem Cell 2014, 15: 683-686. PMID: 25479745, PMCID: PMC4623825, DOI: 10.1016/j.stem.2014.11.006.Peer-Reviewed Original ResearchValentina Greco: Got hair?
Greco V, Sedwick C. Valentina Greco: Got hair? Journal Of Cell Biology 2014, 207: 436-437. PMID: 25422370, PMCID: PMC4242828, DOI: 10.1083/jcb.2074pi.Peer-Reviewed Original ResearchSpontaneous tumour regression in keratoacanthomas is driven by Wnt/retinoic acid signalling cross-talk
Zito G, Saotome I, Liu Z, Ferro EG, Sun TY, Nguyen DX, Bilguvar K, Ko CJ, Greco V. Spontaneous tumour regression in keratoacanthomas is driven by Wnt/retinoic acid signalling cross-talk. Nature Communications 2014, 5: 3543. PMID: 24667544, PMCID: PMC3974217, DOI: 10.1038/ncomms4543.Peer-Reviewed Original ResearchConceptsTumor regressionRetinoic acidSquamous cell carcinomaSpontaneous tumor regressionMouse model systemCell carcinomaMalignant tumorsTherapeutic strategiesCutaneous keratoacanthomasKeratoacanthomaPhysiological mechanismsTumor growthHuman keratoacanthomaTumorsHair follicle regenerationCancer biologyFollicle regenerationRegressionDifferentiation programWntCarcinomaPathwayβ-Catenin Activation Regulates Tissue Growth Non–Cell Autonomously in the Hair Stem Cell Niche
Deschene ER, Myung P, Rompolas P, Zito G, Sun TY, Taketo MM, Saotome I, Greco V. β-Catenin Activation Regulates Tissue Growth Non–Cell Autonomously in the Hair Stem Cell Niche. Science 2014, 343: 1353-1356. PMID: 24653033, PMCID: PMC4096864, DOI: 10.1126/science.1248373.Peer-Reviewed Original ResearchConceptsWild-type cellsWnt/β-catenin signalingΒ-catenin signalingΒ-catenin activationMouse hair follicle stem cellsΒ-cateninStem cell nicheHair follicle stem cellsFollicle stem cellsNiche signalsMutant cellsCell divisionCell nicheCoordinated regenerationHair growthWnt ligandsCellular displacementCell behaviorStem cellsHair regenerationTissue growthSignalingCellsTissue regenerationActivation
2013
Spatial organization within a niche as a determinant of stem-cell fate
Rompolas P, Mesa KR, Greco V. Spatial organization within a niche as a determinant of stem-cell fate. Nature 2013, 502: 513-518. PMID: 24097351, PMCID: PMC3895444, DOI: 10.1038/nature12602.Peer-Reviewed Original ResearchConceptsStem cell fateHair follicle nicheStem cell lineagesStem cellsStem cell nicheHair follicle stem cellsStem cell compartmentFollicle stem cellsFate determinationGenetic lineagesDifferentiated fateAdult tissuesNiche locationsMammalian tissuesNicheHair regenerationLineagesSpatial organizationEpithelial cellsFateCellsHair growthRegenerationLive miceTissue
2012
Live imaging of stem cell and progeny behaviour in physiological hair-follicle regeneration
Rompolas P, Deschene ER, Zito G, Gonzalez DG, Saotome I, Haberman AM, Greco V. Live imaging of stem cell and progeny behaviour in physiological hair-follicle regeneration. Nature 2012, 487: 496-499. PMID: 22763436, PMCID: PMC3772651, DOI: 10.1038/nature11218.Peer-Reviewed Original Research
2009
A Two-Step Mechanism for Stem Cell Activation during Hair Regeneration
Greco V, Chen T, Rendl M, Schober M, Pasolli HA, Stokes N, dela Cruz-Racelis J, Fuchs E. A Two-Step Mechanism for Stem Cell Activation during Hair Regeneration. Cell Stem Cell 2009, 4: 155-169. PMID: 19200804, PMCID: PMC2668200, DOI: 10.1016/j.stem.2008.12.009.Peer-Reviewed Original ResearchConceptsBMP inhibitorsHair germHG cellsStem cellsStem cell activationHair regenerationTransit-amplifying cellsBulge stem cellsDermal papillaCyclic boutsTranscriptional profilingElevated FGFPrecocious activityHair folliclesBulge cellsLate telogenWntCell clustersCell activationCellsTwo-step mechanismSmall cell clustersInitial stepRegenerationInhibitors