2019
Immune microenvironment of triple-negative breast cancer in African-American and Caucasian women
O’Meara T, Safonov A, Casadevall D, Qing T, Silber A, Killelea B, Hatzis C, Pusztai L. Immune microenvironment of triple-negative breast cancer in African-American and Caucasian women. Breast Cancer Research And Treatment 2019, 175: 247-259. PMID: 30725384, PMCID: PMC6666415, DOI: 10.1007/s10549-019-05156-5.Peer-Reviewed Original ResearchConceptsTriple-negative breast cancerCaucasian breast cancersER-positive cancersBreast cancerTIL countImmune microenvironmentCaucasian patientsMolecular subtypesAA TNBCHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Pathologic complete responseGrowth factor receptor 2Immune cell distributionImmune cell populationsCancer Genome Atlas (TCGA) databaseConsistent racial differencesFactor receptor 2Immune gene expressionImmune attenuationNeoadjuvant chemotherapyLymphocyte countLymphocyte infiltrationComplete responseTNBC cases
2013
Estrogen receptor (ER) mRNA expression and molecular subtype distribution in ER-negative/progesterone receptor-positive breast cancers
Itoh M, Iwamoto T, Matsuoka J, Nogami T, Motoki T, Shien T, Taira N, Niikura N, Hayashi N, Ohtani S, Higaki K, Fujiwara T, Doihara H, Symmans WF, Pusztai L. Estrogen receptor (ER) mRNA expression and molecular subtype distribution in ER-negative/progesterone receptor-positive breast cancers. Breast Cancer Research And Treatment 2013, 143: 403-409. PMID: 24337596, DOI: 10.1007/s10549-013-2763-z.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAnthracyclinesAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsBridged-Ring CompoundsFemaleGene Expression ProfilingHumansKi-67 AntigenMiddle AgedNeoadjuvant TherapyNeoplasm Recurrence, LocalReceptor, ErbB-2Receptors, EstrogenReceptors, ProgesteroneRNA, MessengerSurvival RateTaxoidsYoung AdultConceptsEstrogen receptor mRNA expressionPR-positive patientsTriple-negative cohortER-positive cancersTriple-negative cancersReceptor mRNA expressionProgesterone receptorBreast cancerMolecular subtypesER-negative/PR-positive tumorsProgesterone receptor-positive breast cancerReceptor-positive breast cancerRelapse-free survival rateMRNA expressionAdjuvant endocrine therapyMolecular subtype distributionPR-positive tumorsRoutine clinical assessmentSafe clinical approachLuminal-type cancersExpression of ESR1Adjuvant endocrineEndocrine therapyNeoadjuvant chemotherapyAffymetrix U133A gene chips
2012
Cell Line Derived Multi-Gene Predictor of Pathologic Response to Neoadjuvant Chemotherapy in Breast Cancer: A Validation Study on US Oncology 02-103 Clinical Trial
Shen K, Qi Y, Song N, Tian C, Rice SD, Gabrin MJ, Brower SL, Symmans WF, O’Shaughnessy J, Holmes FA, Asmar L, Pusztai L. Cell Line Derived Multi-Gene Predictor of Pathologic Response to Neoadjuvant Chemotherapy in Breast Cancer: A Validation Study on US Oncology 02-103 Clinical Trial. BMC Medical Genomics 2012, 5: 51. PMID: 23158478, PMCID: PMC3536618, DOI: 10.1186/1755-8794-5-51.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsArea Under CurveBreast NeoplasmsCell Line, TumorClinical Trials as TopicDemographyFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticGenes, NeoplasmHumansMiddle AgedMultivariate AnalysisNeoadjuvant TherapyReproducibility of ResultsTreatment OutcomeUnited StatesConceptsMulti-gene predictorsBreast cancerNeoadjuvant chemotherapyCombination chemotherapyCyclophosphamide combination chemotherapyDocetaxel/capecitabineEpirubicin/cyclophosphamideER-negative patientsPathologic complete responseER-positive cancersReceiver-operating characteristic curveAU-ROCCell linesBlinded validation studyNeoadjuvant treatmentMost patientsComplete responseER statusPathologic responseClinical outcomesValidation studyResidual diseaseTx groupClinical trialsEstrogen receptorEstrogen Receptor (ER) mRNA and ER-Related Gene Expression in Breast Cancers That Are 1% to 10% ER-Positive by Immunohistochemistry
Iwamoto T, Booser D, Valero V, Murray JL, Koenig K, Esteva FJ, Ueno NT, Zhang J, Shi W, Qi Y, Matsuoka J, Yang EJ, Hortobagyi GN, Hatzis C, Symmans WF, Pusztai L. Estrogen Receptor (ER) mRNA and ER-Related Gene Expression in Breast Cancers That Are 1% to 10% ER-Positive by Immunohistochemistry. Journal Of Clinical Oncology 2012, 30: 729-734. PMID: 22291085, DOI: 10.1200/jco.2011.36.2574.Peer-Reviewed Original ResearchConceptsER-positive patientsIHC-positive patientsER-positive cancersESR1 mRNA expressionGene signature scoreER statusBreast cancerSignature scoreEstrogen receptor-positive cancersMRNA expressionAdjuvant endocrine therapyEndocrine-sensitive tumorsER-negative cohortER-positive cohortER-negative groupER-positive tumorsOverall survival ratePrimary breast cancerER-negative cancersReceptor-positive cancersSafe clinical approachEstrogen receptor mRNAEndocrine therapyER-positiveAffymetrix U133A gene chips
2011
P1-07-09: Estrogen Receptor (ER) mRNA and ER-Related Gene Expression in Breast Cancers That Are 1%-10% ER-Positive by Immunohistochemistry.
Iwamoto T, Booser D, Valero V, Murray J, Koenig K, Esteva F, Ueno N, Zhang J, Shi W, Qi Y, Matsuoka J, Hortobagyi G, Hatzis C, Symmans W, Pusztai L. P1-07-09: Estrogen Receptor (ER) mRNA and ER-Related Gene Expression in Breast Cancers That Are 1%-10% ER-Positive by Immunohistochemistry. Cancer Research 2011, 71: p1-07-09-p1-07-09. DOI: 10.1158/0008-5472.sabcs11-p1-07-09.Peer-Reviewed Original ResearchER-positive casesER-positive cancersESR1 mRNA expressionGene signature scoreIHC-positive casesLuminal ABreast cancerSignature scoreMRNA expressionER-negative cancersPrimary breast cancerESR1 mRNA levelsEstrogen receptor mRNAER expressionER statusER-positivePositive cancersAffymetrix U133A gene chipsLuminal BSensitive tumorsEstrogen receptorB. ConclusionReceptor mRNAESR1 expressionPositive casesPD03-02: Prognostic and Predictive Predictors for Triple Negative Breast Cancer.
Karn T, Pusztai L, Ruckhäberle E, Liedtke C, Schmidt M, Müller V, Gätje R, Hanker L, Ahr A, Holtrich U, Rody A, Kaufmann M. PD03-02: Prognostic and Predictive Predictors for Triple Negative Breast Cancer. Cancer Research 2011, 71: pd03-02-pd03-02. DOI: 10.1158/0008-5472.sabcs11-pd03-02.Peer-Reviewed Original ResearchTriple-negative breast cancerNegative breast cancerPrognostic signatureBreast cancerResponse of TNBCER-positive cancersPrognostic gene signatureMolecular phenotypesTNBC cohortNeoadjuvant chemotherapyHazard ratioBetter prognosisPrognostic predictorTherapeutic optionsPoor prognosisIndependent cohortPredictive valuePrognostic gene expression profilesMultivariate analysisGene signatureCancer ResCohortCancerPrognosisROC analysisA clinically relevant gene signature in triple negative and basal-like breast cancer
Rody A, Karn T, Liedtke C, Pusztai L, Ruckhaeberle E, Hanker L, Gaetje R, Solbach C, Ahr A, Metzler D, Schmidt M, Müller V, Holtrich U, Kaufmann M. A clinically relevant gene signature in triple negative and basal-like breast cancer. Breast Cancer Research 2011, 13: r97. PMID: 21978456, PMCID: PMC3262210, DOI: 10.1186/bcr3035.Peer-Reviewed Original ResearchConceptsTriple-negative breast cancerBasal-like triple-negative breast cancerBreast cancerPrognostic markerMolecular subtypesMultivariate analysisBasal-like molecular subtypeClaudin-low molecular subtypeBasal-like breast cancerAttractive novel therapeutic targetB cell presenceHigh expressionER-positive cancersHigh histological gradeHigher B cellsIL-8 pathwayIL-8 activityNegative breast cancerNew prognostic markerNovel therapeutic targetBiology-based therapiesNon-neoplastic cell populationsRelevant gene signaturesRoutine clinicopathological variablesResultsSeventy-three percent
2010
Gene Pathways Associated With Prognosis and Chemotherapy Sensitivity in Molecular Subtypes of Breast Cancer
Iwamoto T, Bianchini G, Booser D, Qi Y, Coutant C, Shiang CY, Santarpia L, Matsuoka J, Hortobagyi GN, Symmans WF, Holmes FA, O’Shaughnessy J, Hellerstedt B, Pippen J, Andre F, Simon R, Pusztai L. Gene Pathways Associated With Prognosis and Chemotherapy Sensitivity in Molecular Subtypes of Breast Cancer. Journal Of The National Cancer Institute 2010, 103: 264-272. PMID: 21191116, DOI: 10.1093/jnci/djq524.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsChemotherapy, AdjuvantConfounding Factors, EpidemiologicCytochrome P-450 Enzyme InhibitorsCytochrome P-450 Enzyme SystemDatabases, GeneticDrug Resistance, NeoplasmFemaleGene Expression Regulation, NeoplasticGTP-Binding ProteinsHumansMiddle AgedNeoadjuvant TherapyNeoplasm StagingPredictive Value of TestsPrognosisReceptors, EstrogenSignal TransductionTreatment OutcomeConceptsER-negative breast cancerPathological complete responseER-positive cancersER-negative cancersBreast cancerChemotherapy responseComplete responseBetter prognosisChemotherapy sensitivityLymph node-negative breast cancerNode-negative breast cancerSystemic adjuvant therapyCell cycle-related gene setsBreast cancer subtypesIngenuity Pathway AnalysisAdjuvant therapyPreoperative chemotherapyPoor prognosisPooled analysisEstrogen receptorTreatment responseMolecular subtypesAdditional cohortPrognosisStage IMolecular Anatomy of Breast Cancer Stroma and Its Prognostic Value in Estrogen Receptor–Positive and –Negative Cancers
Bianchini G, Qi Y, Alvarez RH, Iwamoto T, Coutant C, Ibrahim NK, Valero V, Cristofanilli M, Green MC, Radvanyi L, Hatzis C, Hortobagyi GN, Andre F, Gianni L, Symmans WF, Pusztai L. Molecular Anatomy of Breast Cancer Stroma and Its Prognostic Value in Estrogen Receptor–Positive and –Negative Cancers. Journal Of Clinical Oncology 2010, 28: 4316-4323. PMID: 20805453, DOI: 10.1200/jco.2009.27.2419.Peer-Reviewed Original ResearchMeSH KeywordsAmyloid beta-Protein PrecursorAntineoplastic Agents, HormonalBiopsy, Fine-NeedleB-LymphocytesBreast NeoplasmsChi-Square DistributionCollagen Type IVExtracellular Matrix ProteinsFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansMetagenomeNeoplasm Recurrence, LocalPhospholipid Transfer ProteinsPrognosisProportional Hazards ModelsProspective StudiesProtease NexinsProtein Serine-Threonine KinasesReceptor, Transforming Growth Factor-beta Type IIReceptors, Cell SurfaceReceptors, EstrogenReceptors, Transforming Growth Factor betaSurvival AnalysisTamoxifenConceptsER-negative cancersBreast cancer stromaER-positive cancersPrognostic valueCancer stromaNegative cancersProliferative cancersSystemic adjuvant therapyTamoxifen-treated patientsNode-negative patientsEstrogen-receptor positiveStrong prognostic valueCore needle biopsySubset of tumorsLess prognostic valueDistant relapseAdjuvant therapyHazard ratioFavorable prognosisHighest tertilePrognostic scoreCore biopsyBreast cancerImmune functionMultivariate analysis
2009
Genomic Grade Index Is Associated With Response to Chemotherapy in Patients With Breast Cancer
Liedtke C, Hatzis C, Symmans WF, Desmedt C, Haibe-Kains B, Valero V, Kuerer H, Hortobagyi GN, Piccart-Gebhart M, Sotiriou C, Pusztai L. Genomic Grade Index Is Associated With Response to Chemotherapy in Patients With Breast Cancer. Journal Of Clinical Oncology 2009, 27: 3185-3191. PMID: 19364972, PMCID: PMC2716940, DOI: 10.1200/jco.2008.18.5934.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntineoplastic Combined Chemotherapy ProtocolsArea Under CurveBreast NeoplasmsCyclophosphamideDoxorubicinDrug Resistance, NeoplasmFemaleFluorouracilHumansMiddle AgedNeoadjuvant TherapyOligonucleotide Array Sequence AnalysisPaclitaxelReceptors, EstrogenROC CurveTreatment OutcomeConceptsGenomic grade indexER-positive patientsRelapse-free survivalPathologic responseNeoadjuvant paclitaxelCyclophosphamide chemotherapyBreast cancerWorse distant relapse-free survivalDistant relapse-free survivalSystemic adjuvant therapyPathologic complete responseFine-needle aspiration biopsyGrade 3 tumorsER-negative cancersER-positive cancersGrade 1 tumorsGrade 2 tumorsMinimal residual diseaseHistological tumor gradeAdjuvant therapyNeoadjuvant chemotherapyComplete responseWorse survivalClinical parametersResidual disease
2008
Evaluation of biological pathways involved in chemotherapy response in breast cancer
Tordai A, Wang J, Andre F, Liedtke C, Yan K, Sotiriou C, Hortobagyi GN, Symmans WF, Pusztai L. Evaluation of biological pathways involved in chemotherapy response in breast cancer. Breast Cancer Research 2008, 10: r37. PMID: 18445275, PMCID: PMC2397539, DOI: 10.1186/bcr2088.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsChemotherapy, AdjuvantCyclophosphamideDoxorubicinDrug Resistance, NeoplasmE2F3 Transcription FactorFemaleFluorouracilGene Expression ProfilingGene Expression Regulation, NeoplasticGenes, p53HumansKi-67 AntigenLymphatic MetastasisMiddle AgedMutationNeoadjuvant TherapyNeoplasm StagingPaclitaxelReceptors, EstrogenSignal TransductionTreatment OutcomeConceptsER-positive breast cancerPathologic complete responseER-positive cancersER-negative cancersGenomic grade indexBreast cancerChemotherapy sensitivityGene signatureER-negative breast cancerProliferation signatureER-positive patientsPositive breast cancerExpression of ERPreoperative paclitaxelProliferation gene signatureCyclophosphamide chemotherapyComplete responseResidual cancerChemotherapy responsePCR groupKi67 expressionEstrogen receptorIntroductionOur goalCancerChemotherapy
2007
HER2 expression and efficacy of preoperative paclitaxel/FAC chemotherapy in breast cancer
Andre F, Mazouni C, Liedtke C, Kau SW, Frye D, Green M, Gonzalez-Angulo AM, Symmans WF, Hortobagyi GN, Pusztai L. HER2 expression and efficacy of preoperative paclitaxel/FAC chemotherapy in breast cancer. Breast Cancer Research And Treatment 2007, 108: 183-190. PMID: 17468948, DOI: 10.1007/s10549-007-9594-8.Peer-Reviewed Original ResearchMeSH KeywordsAntigens, NeoplasmAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsCyclophosphamideDisease-Free SurvivalDNA Topoisomerases, Type IIDNA-Binding ProteinsDoxorubicinDrug Administration ScheduleFemaleFluorouracilGene AmplificationGene Expression ProfilingGene Expression Regulation, NeoplasticHumansMiddle AgedNeoadjuvant TherapyNeoplasm StagingOligonucleotide Array Sequence AnalysisPaclitaxelPatient SelectionPoly-ADP-Ribose Binding ProteinsReceptor, ErbB-2Receptors, EstrogenRetrospective StudiesRNA, MessengerTau ProteinsTime FactorsTreatment OutcomeConceptsPathologic complete responseHER2 overexpressionBreast cancerFAC chemotherapyPCR rateER statusHER2 expressionRelapse-free survival rateHER2-overexpressing breast cancerMicrotubule associated protein tauER-positive cancersEstrogen receptor statusPreoperative chemotherapyComplete responseHER2 tumorsMethodsRetrospective analysisReceptor statusPatientsSurvival rateMultivariate analysisWeekly scheduleMAP-tauProtein tauCancerChemotherapyMicrotubule-Associated Protein-tau is a Bifunctional Predictor of Endocrine Sensitivity and Chemotherapy Resistance in Estrogen Receptor–Positive Breast Cancer
Andre F, Hatzis C, Anderson K, Sotiriou C, Mazouni C, Mejia J, Wang B, Hortobagyi GN, Symmans WF, Pusztai L. Microtubule-Associated Protein-tau is a Bifunctional Predictor of Endocrine Sensitivity and Chemotherapy Resistance in Estrogen Receptor–Positive Breast Cancer. Clinical Cancer Research 2007, 13: 2061-2067. PMID: 17404087, DOI: 10.1158/1078-0432.ccr-06-2078.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsDrug Resistance, NeoplasmEstrogen Receptor ModulatorsFemaleGene ExpressionGene Expression ProfilingHumansMiddle AgedNeoplasms, Hormone-DependentPrognosisReceptors, EstrogenRNA, MessengerTamoxifenTau ProteinsConceptsTau mRNA expressionBreast cancerPredictive valueTau expressionMRNA expressionEndocrine therapyEstrogen receptor-positive breast cancerPositive primary breast cancerReceptor-positive breast cancerER-positive breast cancerBorderline nonsignificant associationLow tau expressionPure prognostic valueSystemic adjuvant therapyTaxane-containing chemotherapyChemotherapy-resistant diseasePathologic complete responseER-positive cancersPrimary breast cancerDifferent outcome groupsWilcoxon rank sum testRank sum testAdjuvant tamoxifenPreoperative paclitaxelAdjuvant therapy