2001
Induced senescence in HeLa cervical carcinoma cells containing elevated telomerase activity and extended telomeres.
Goodwin E, DiMaio D. Induced senescence in HeLa cervical carcinoma cells containing elevated telomerase activity and extended telomeres. Molecular Cancer Research 2001, 12: 525-34. PMID: 11714633.Peer-Reviewed Original ResearchConceptsTumor suppressor pathwayHeLa cervical carcinoma cellsExtended telomeresReplicative senescenceHTERT geneSuppressor pathwayTelomerase activityGrowth arrestCervical carcinoma cellsRepression of telomeraseElevated telomerase activitySomatic human cellsNormal somatic human cellsShort telomeresGrowth-arrested stateSenescence-associated beta-galactosidase expressionHPV E6/E7 expressionGrowth-arrested cellsHeLa cell clonesProfound growth arrestRole of telomeraseE6/E7 genesBeta-galactosidase expressionErosion of telomeresCarcinoma cells
1999
Bovine papillomavirus E2 protein activates a complex growth-inhibitory program in p53-negative HT-3 cervical carcinoma cells that includes repression of cyclin A and cdc25A phosphatase genes and accumulation of hypophosphorylated retinoblastoma protein.
Naeger L, Goodwin E, Hwang E, DeFilippis R, Zhang H, DiMaio D. Bovine papillomavirus E2 protein activates a complex growth-inhibitory program in p53-negative HT-3 cervical carcinoma cells that includes repression of cyclin A and cdc25A phosphatase genes and accumulation of hypophosphorylated retinoblastoma protein. Molecular Cancer Research 1999, 10: 413-22. PMID: 10392903.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCarrier ProteinsCattleCdc25 PhosphatasesCDC2-CDC28 KinasesCell Cycle ProteinsCell DivisionCyclin ACyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent KinasesCyclinsDNA-Binding ProteinsE2F Transcription FactorsE2F1 Transcription FactorEnzyme InhibitorsFemaleGene Expression RegulationGrowth InhibitorsHeLa CellsHumansPhosphoprotein PhosphatasesPhosphorylationProtein Serine-Threonine KinasesProtein Tyrosine PhosphatasesRepressor ProteinsRetinoblastoma ProteinRetinoblastoma-Binding Protein 1Transcription Factor DP1Transcription FactorsTumor Cells, CulturedTumor Suppressor Protein p53Uterine Cervical NeoplasmsViral ProteinsConceptsCervical carcinoma cell linesHT-3 cellsCarcinoma cell linesE2 proteinE6/E7 genesCell linesGrowth inhibitionCervical carcinoma cellsCyclin ACyclin-dependent kinase 2 activityExpression of CDC25AKinase 2 activityE7 genesCell cycle componentsCarcinoma cellsCDC25B expressionE2 expressionProtein levels
1998
Transactivation-Competent Bovine Papillomavirus E2 Protein Is Specifically Required for Efficient Repression of Human Papillomavirus Oncogene Expression and for Acute Growth Inhibition of Cervical Carcinoma Cell Lines
Goodwin E, Naeger L, Breiding D, Androphy E, DiMaio D. Transactivation-Competent Bovine Papillomavirus E2 Protein Is Specifically Required for Efficient Repression of Human Papillomavirus Oncogene Expression and for Acute Growth Inhibition of Cervical Carcinoma Cell Lines. Journal Of Virology 1998, 72: 3925-3934. PMID: 9557678, PMCID: PMC109618, DOI: 10.1128/jvi.72.5.3925-3934.1998.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesBovine papillomavirus 1CattleCell DivisionCell NucleusCOS CellsDNADNA-Binding ProteinsFemaleGene Expression Regulation, ViralHeLa CellsHumansMutagenesisOncogene Proteins, ViralOncogenesPapillomaviridaeRepressor ProteinsRNA, MessengerRNA, ViralTrans-ActivatorsTranscriptional ActivationTumor Cells, CulturedUterine Cervical NeoplasmsViral ProteinsConceptsPapillomavirus E2 proteinGrowth arrestHT-3 cellsEfficient repressionTransactivation domainE2 proteinHeLa cellsG1/S-phase growth arrestE2 mutantsBovine papillomavirus type 1 E2 proteinBovine papillomavirus E2 proteinHerpes simplex virus VP16Reporter plasmidAcute growth inhibitionE2 transactivation domainGrowth inhibitionCervical carcinoma cell linesBPV1 E2 proteinCarcinoma cell linesHuman papillomavirus oncogene expressionViral DNA replicationPhase growth arrestSequence-specific transactivatorCell linesWild-type p53 gene
1996
Activation of the endogenous p53 growth inhibitory pathway in HeLa cervical carcinoma cells by expression of the bovine papillomavirus E2 gene.
Hwang E, Naeger L, DiMaio D. Activation of the endogenous p53 growth inhibitory pathway in HeLa cervical carcinoma cells by expression of the bovine papillomavirus E2 gene. Oncogene 1996, 12: 795-803. PMID: 8632901.Peer-Reviewed Original ResearchMeSH KeywordsBovine papillomavirus 1CDC2-CDC28 KinasesCell DivisionCyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent KinasesCyclinsDNA ReplicationDNA-Binding ProteinsEnzyme InhibitorsFemaleGene Expression Regulation, NeoplasticGene Expression Regulation, ViralGenes, ViralHeLa CellsHumansModels, BiologicalPhosphorylationProtein Serine-Threonine KinasesTumor Suppressor Protein p53Uterine Cervical NeoplasmsViral ProteinsConceptsTumor suppressor proteinGrowth inhibitory pathwaySuppressor proteinHeLa cellsP21/waf1Kinase activityE2 geneBPV E2 proteinP53 tumor suppressor proteinCdk2/cyclin E kinase activityCyclin-dependent kinase inhibitorGrowth regulatory pathwaysHeLa cervical carcinoma cellsP53-responsive genesCell cycle regulatory proteinsCDK kinase activityCyclin E kinase activityCycle regulatory proteinsDependent kinase inhibitorG1 cell cycle regulatory proteinsB-MybTranscription factorsRegulatory proteinsRegulatory pathwaysP105Rb
1995
Ligand-Independent Activation of the Platelet-Derived Growth Factor β Receptor: Requirements for Bovine Papillomavirus E5-Induced Mitogenic Signaling
Drummond-Barbosa D, Vaillancourt R, Kazlauskas A, DiMaio D. Ligand-Independent Activation of the Platelet-Derived Growth Factor β Receptor: Requirements for Bovine Papillomavirus E5-Induced Mitogenic Signaling. Molecular And Cellular Biology 1995, 15: 2570-2581. PMID: 7739538, PMCID: PMC230487, DOI: 10.1128/mcb.15.5.2570.Peer-Reviewed Original ResearchConceptsE5 proteinPDGF beta receptorTyrosine phosphorylationMitogenic signalsMitogenic signalingReceptor mutantsSH2 domain-containing proteinsPlatelet-derived growth factor beta receptorPDGF beta receptor tyrosine kinaseDomain-containing proteinsPhosphorylation of substratesInterleukin-3Tyrosine phosphorylation sitesGrowth factor β receptorBa/F3 cellsReceptor tyrosine phosphorylationGrowth factor beta receptorLigand-independent activationReceptor tyrosine kinasesTyrosine kinase activityBovine papillomavirus E5Beta receptorsComplex formationPhosphorylation sitesReceptor autophosphorylation
1993
Inhibition of cervical carcinoma cell line proliferation by the introduction of a bovine papillomavirus regulatory gene
Hwang E, Riese D, Settleman J, Nilson L, Honig J, Flynn S, DiMaio D. Inhibition of cervical carcinoma cell line proliferation by the introduction of a bovine papillomavirus regulatory gene. Journal Of Virology 1993, 67: 3720-3729. PMID: 8389903, PMCID: PMC237735, DOI: 10.1128/jvi.67.7.3720-3729.1993.Peer-Reviewed Original ResearchConceptsBPV E2 proteinGene expressionCervical carcinoma cell linesRegulatory genesHPV gene expressionCarcinoma cell linesCell linesE2 proteinHeLa cellsConsequence of abrogationP53 tumor suppressor proteinHPV18 E6Tumor suppressor proteinE2 geneDestabilization of p53HT-3 cellsGrowth inhibitionBPV E2Simian virus 40Suppressor proteinEpithelial cell lineHuman papillomavirus E6Cell cycleGenesS phase
1989
Open reading frames E6 and E7 of bovine papillomavirus type 1 are both required for full transformation of mouse C127 cells
Neary K, DiMaio D. Open reading frames E6 and E7 of bovine papillomavirus type 1 are both required for full transformation of mouse C127 cells. Journal Of Virology 1989, 63: 259-266. PMID: 2535732, PMCID: PMC247680, DOI: 10.1128/jvi.63.1.259-266.1989.Peer-Reviewed Original ResearchConceptsBovine papillomavirus type 1Open reading frames E6Mouse C127 cellsFull-length viral genomesAnchorage-independent growthPapillomavirus type 1Focus-forming activityC127 cellsORF E6First methionine codonViral genomeColony formationRetrovirus long terminal repeatsSeries of mutationsE6/E7Second ATG codonLong terminal repeatBPV1 genomeMethionine codonATG codonNumber plasmidE5 geneSpecific proteinsSimultaneous disruptionE6 protein