2015
Epigenetic silencing of neurofilament genes promotes an aggressive phenotype in breast cancer
Calmon MF, Jeschke J, Zhang W, Dhir M, Siebenkäs C, Herrera A, Tsai HC, O'Hagan HM, Pappou EP, Hooker CM, Fu T, Schuebel KE, Gabrielson E, Rahal P, Herman JG, Baylin SB, Ahuja N. Epigenetic silencing of neurofilament genes promotes an aggressive phenotype in breast cancer. Epigenetics 2015, 10: 622-632. PMID: 25985363, PMCID: PMC4622480, DOI: 10.1080/15592294.2015.1050173.Peer-Reviewed Original ResearchConceptsNeurofilament medium polypeptideNeurofilament heavy polypeptideDNA methylation-associated silencingDNA methylation-mediated silencingNeurofilament genesMethylation-mediated silencingMethylation-associated silencingMethylation-mediated inactivationGo/G1 phaseEpigenetic silencingMedium polypeptideEpigenetic inactivationCell cycleMajor subunitBreast cancer cellsCell typesGenesSilencingHeavy polypeptideG1 phaseFunctional significanceCandidate DNAMature neuronsCancer cellsPolypeptide
2013
Frequent Inactivation of Cysteine Dioxygenase Type 1 Contributes to Survival of Breast Cancer Cells and Resistance to Anthracyclines
Jeschke J, O'Hagan HM, Zhang W, Vatapalli R, Calmon MF, Danilova L, Nelkenbrecher C, Van Neste L, Bijsmans IT, Van Engeland M, Gabrielson E, Schuebel KE, Winterpacht A, Baylin SB, Herman JG, Ahuja N. Frequent Inactivation of Cysteine Dioxygenase Type 1 Contributes to Survival of Breast Cancer Cells and Resistance to Anthracyclines. Clinical Cancer Research 2013, 19: 3201-3211. PMID: 23630167, PMCID: PMC3985391, DOI: 10.1158/1078-0432.ccr-12-3751.Peer-Reviewed Original ResearchConceptsBreast cancer cellsEpigenetic eventsDNA methylationGenome-wide DNA methylation analysisCancer cellsDNA methylation-associated silencingKey epigenetic eventsDetoxification of ROSCritical epigenetic eventsComprehensive functional analysisDNA methylation analysisDNA methylation dataMethylation-associated silencingRepressive chromatinOxygen species productionFunctional analysisMethylation dataLevels of ROSMethylation analysisReduced viabilityMissense mutationsFunctional significanceFrequent inactivationSpecies productionMethylation
2012
Biomarkers for detection and prognosis of breast cancer identified by a functional hypermethylome screen
Jeschke J, Van Neste L, Glöckner SC, Dhir M, Calmon MF, Deregowski V, Van Criekinge W, Vlassenbroeck I, Koch A, Chan TA, Cope L, Hooker CM, Schuebel KE, Gabrielson E, Winterpacht A, Baylin SB, Herman JG, Ahuja N. Biomarkers for detection and prognosis of breast cancer identified by a functional hypermethylome screen. Epigenetics 2012, 7: 701-709. PMID: 22647880, DOI: 10.4161/epi.20445.Peer-Reviewed Original ResearchConceptsPoor overall survivalBreast cancerOverall survivalPrognosis predictionEffective biomarkersClinical prognostic variablesPrimary breast cancerDetection of BCFrequent methylated genesStrongest single markersSignificant prognosticatorBC patientsValidation cohortPrognostic variablesPrognostic signatureEarly detectionCancerBiomarkersPromoter hypermethylationMethylation changesTumor heterogeneityPrognosisSingle markerGene expression approachSurvivalTransient Low Doses of DNA-Demethylating Agents Exert Durable Antitumor Effects on Hematological and Epithelial Tumor Cells
Tsai HC, Li H, Van Neste L, Cai Y, Robert C, Rassool FV, Shin JJ, Harbom KM, Beaty R, Pappou E, Harris J, Yen RW, Ahuja N, Brock MV, Stearns V, Feller-Kopman D, Yarmus LB, Lin YC, Welm AL, Issa JP, Minn I, Matsui W, Jang YY, Sharkis SJ, Baylin SB, Zahnow CA. Transient Low Doses of DNA-Demethylating Agents Exert Durable Antitumor Effects on Hematological and Epithelial Tumor Cells. Cancer Cell 2012, 21: 430-446. PMID: 22439938, PMCID: PMC3312044, DOI: 10.1016/j.ccr.2011.12.029.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntimetabolites, AntineoplasticApoptosisAzacitidineBone Marrow CellsBreast NeoplasmsCell CycleCell Line, TumorCell Transformation, NeoplasticDecitabineDNA DamageDNA MethylationDNA Modification MethylasesGene SilencingHumansLeukemiaMiceMolecular Sequence DataNeoplastic Stem CellsPromoter Regions, GeneticSignal TransductionTumor Cells, CulturedConceptsKey cellular regulatory pathwaysDNA methylation inhibitorPromoter DNA hypermethylationCellular regulatory pathwaysDNA demethylating agentEpithelial tumor cellsPromoter DNA methylationRapid DNA damageCancer stem-like cellsGene reexpressionDNA methylationStem-like cellsMethylation inhibitorDNA hypermethylationRegulatory pathwaysCancer therapy approachesAssociated geneDNA damageTumor cellsImmediate cytotoxicityNanomolar dosesTransient exposureCellsGenesMethylation
2011
Breast Cancer Methylomes Establish an Epigenomic Foundation for Metastasis
Fang F, Turcan S, Rimner A, Kaufman A, Giri D, Morris LG, Shen R, Seshan V, Mo Q, Heguy A, Baylin SB, Ahuja N, Viale A, Massague J, Norton L, Vahdat LT, Moynahan ME, Chan TA. Breast Cancer Methylomes Establish an Epigenomic Foundation for Metastasis. Science Translational Medicine 2011, 3: 75ra25. PMID: 21430268, PMCID: PMC3146366, DOI: 10.1126/scitranslmed.3001875.Peer-Reviewed Original ResearchConceptsGenome-wide analysisBreast cancer methylomeBreast cancer epigenomeDistinct epigenomic profilesCancer-specific alterationsMetastatic behaviorHuman malignanciesCancer methylomeCancer epigenomeEpigenomic contributionEpigenomic profilesDNA methylationTranscriptomic changesHypermethylator phenotypeMultiple human malignanciesCpG island methylator phenotypeBreast cancer oncogenesisGenesCancer oncogenesisMethylomeMethylationLociLow metastatic riskMetastatic potentialMethylator phenotype
2008
Multilevel Analysis of the Impact of Community vs Patient Factors on Access to Immediate Breast Reconstruction Following Mastectomy in Maryland
Rosson GD, Singh NK, Ahuja N, Jacobs LK, Chang DC. Multilevel Analysis of the Impact of Community vs Patient Factors on Access to Immediate Breast Reconstruction Following Mastectomy in Maryland. JAMA Surgery 2008, 143: 1076-1081. PMID: 19015466, DOI: 10.1001/archsurg.143.11.1076.Peer-Reviewed Original ResearchConceptsRace/ethnicityImmediate reconstructionPatient factorsPatient's neighborhoodMaryland hospital discharge databasePatient race/ethnicityAfrican American race/ethnicityBreast Reconstruction Following MastectomyImmediate reconstruction ratesNinth Revision procedureImmediate breast reconstructionHospital discharge databaseCommunity factorsCommunity-level factorsPublic health policy measuresSame hospitalizationPatient characteristicsPatient demographicsHealth policy measuresNegative associationDischarge databaseFollowing MastectomyBreast reconstructionInpatient careRevision proceduresConvergence of Mutation and Epigenetic Alterations Identifies Common Genes in Cancer That Predict for Poor Prognosis
Chan TA, Glockner S, Yi JM, Chen W, Van Neste L, Cope L, Herman JG, Velculescu V, Schuebel KE, Ahuja N, Baylin SB. Convergence of Mutation and Epigenetic Alterations Identifies Common Genes in Cancer That Predict for Poor Prognosis. PLOS Medicine 2008, 5: e114. PMID: 18507500, PMCID: PMC2429944, DOI: 10.1371/journal.pmed.0050114.Peer-Reviewed Original ResearchConceptsTumor suppressor geneUnbiased genome-wide approachSuppressor geneGenome-wide approachesKey tumor suppressor genesBreast cancer cell linesSet of genesCancer cell linesLarge-scale sequencingTumor suppressor statusPromoter CpG island hypermethylationCell linesCpG island hypermethylationTumor-type specificRecent sequencingBiology of cancerEpigenetic eventsCancer genomesEpigenetic analysisEpigenetic alterationsCommon genesTumor suppressorSignificant genesGenetic changesIsland hypermethylation
2007
The Role of Ultrasound-Guided Fine-Needle Aspiration of Axillary Nodes in the Staging of Breast Cancer
Jain A, Haisfield-Wolfe ME, Lange J, Ahuja N, Khouri N, Tsangaris T, Zhang Z, Balch C, Jacobs LK. The Role of Ultrasound-Guided Fine-Needle Aspiration of Axillary Nodes in the Staging of Breast Cancer. Annals Of Surgical Oncology 2007, 15: 462-471. PMID: 17985188, DOI: 10.1245/s10434-007-9623-1.Peer-Reviewed Original ResearchConceptsUltrasound-guided fine-needle aspirationSentinel node dissectionAxillary node dissectionPreoperative ultrasound-guided fine-needle aspirationPositive predictive valuePrimary tumor featuresFine-needle aspirationAxillary nodesNode dissectionTumor featuresAbnormal axillary nodesBreast cancer patientsLymph node pathologyPrimary breast tumorsRole of ultrasoundSuspicious nodesNeoadjuvant chemotherapyNeoadjuvant therapyComplete responseDefinitive managementCancer patientsBreast cancerPredictive valueBreast tumorsUSFNA results