2018
Tumor infiltrating lymphocytes and PD-L1 expression in pre- and post-treatment breast cancers in the SWOG S0800 Phase II neoadjuvant chemotherapy trial
Pelekanou V, Barlow WE, Nahleh Z, Wasserman B, Lo YC, von Wahlde MK, Hayes D, Hortobagyi GN, Gralow J, Tripathy D, Porter P, Szekely B, Hatzis C, Rimm DL, Pusztai L. Tumor infiltrating lymphocytes and PD-L1 expression in pre- and post-treatment breast cancers in the SWOG S0800 Phase II neoadjuvant chemotherapy trial. Molecular Cancer Therapeutics 2018, 17: molcanther.1005.2017. PMID: 29588392, PMCID: PMC6548451, DOI: 10.1158/1535-7163.mct-17-1005.Peer-Reviewed Original ResearchConceptsPD-L1 expressionPathologic complete responseTIL countPosttreatment tissuePD-L1Estrogen receptorImmune checkpoint inhibitor therapyPD-L1 positivity rateTumor-infiltrating lymphocyte countsDoxorubicin/cyclophosphamideCheckpoint inhibitor therapyPD-L1 levelsMol Cancer TherNab-paclitaxelLymphocyte countResidual cancerComplete responseER statusImmune changesInhibitor therapyCox regressionPatient populationControl armClinical trialsPositivity rate
2017
Bone metastasis-related signaling pathways in breast cancers stratified by estrogen receptor status
Hayashi N, Iwamoto T, Qi Y, Niikura N, Santarpia L, Yamauchi H, Nakamura S, Hortobagyi GN, Pusztai L, Symmans WF, Ueno NT. Bone metastasis-related signaling pathways in breast cancers stratified by estrogen receptor status. Journal Of Cancer 2017, 8: 1045-1052. PMID: 28529618, PMCID: PMC5436258, DOI: 10.7150/jca.13690.Peer-Reviewed Original ResearchER-negative breast cancerEstrogen receptor statusBone metastasesER statusBreast cancerReceptor statusHuman epidermal growth factor receptor 2Breast cancer bone metastasisEpidermal growth factor receptor 2Cox proportional hazards modelNon-bone metastasisGrowth factor receptor 2Cancer bone metastasisProportional hazards modelBreast cancer specimensInvasive breast cancer specimensFactor receptor 2Negative cohortCancer specimensHazards modelReceptor 2BCBMMetastasisCancerCohort
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 receptor172O ER + /HER2+ and ER-/Her2+ Breast Cancers are Molecularly Distinct but Immune Gene Signatures are Prognostic and Predictive in Both Groups
Iwamoto T, Pusztai L, Matsuoka J, Callari M, Kelly C, Qi Y, Motoki T, Taira N, Santarpia L, Doihara H, Gianni L, Bianchini G. 172O ER + /HER2+ and ER-/Her2+ Breast Cancers are Molecularly Distinct but Immune Gene Signatures are Prognostic and Predictive in Both Groups. Annals Of Oncology 2012, 23: ix74-ix75. DOI: 10.1016/s0923-7534(20)32783-6.Peer-Reviewed Original ResearchPathologic complete responseER statusResidual diseaseER-/HER2HER2 cancersBetter prognosisBreast cancerHER2-positive breast cancerImmune gene signaturesSystemic adjuvant therapyPositive breast cancerEstrogen receptor statusHigher chemotherapy sensitivityDistinct molecular subtypesNeoadjuvant taxaneAdjuvant therapyImmune signaturesComplete responseReceptor statusHER2 patientsPoor prognosisMolecular subtypesChemotherapy sensitivityPredictive valueHER2Estrogen 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 casesP4-16-02: Problems with Identifying Bone Metastasis-Specific Genes without Considering Biological Differences between ER-Positive and ER-Negative Breast Cancers.
Hayashi N, Iwamoto T, Qi Y, Niikura N, Santarpia L, Nakamura S, Hortobagyi G, Pusztai L, Symmans F, Ueno N. P4-16-02: Problems with Identifying Bone Metastasis-Specific Genes without Considering Biological Differences between ER-Positive and ER-Negative Breast Cancers. Cancer Research 2011, 71: p4-16-02-p4-16-02. DOI: 10.1158/0008-5472.sabcs11-p4-16-02.Peer-Reviewed Original ResearchER-negative breast cancerER-positive breast cancerMetastasis-specific genesBone metastasesER statusBreast cancerPrimary invasive breast cancer patientsInvasive breast cancer patientsCox proportional hazards modelER-negative breast cancer cell linesNon-bone metastasisFirst metastatic siteBreast cancer patientsProportional hazards modelBreast cancer cell linesSignificant differencesBiological differencesCancer cell linesMetastatic sitesER-positiveCancer patientsDifferent biological potentialsHazards modelPatientsMetastasisA Genomic Predictor of Response and Survival Following Taxane-Anthracycline Chemotherapy for Invasive Breast Cancer
Hatzis C, Pusztai L, Valero V, Booser DJ, Esserman L, Lluch A, Vidaurre T, Holmes F, Souchon E, Wang H, Martin M, Cotrina J, Gomez H, Hubbard R, Chacón JI, Ferrer-Lozano J, Dyer R, Buxton M, Gong Y, Wu Y, Ibrahim N, Andreopoulou E, Ueno NT, Hunt K, Yang W, Nazario A, DeMichele A, O’Shaughnessy J, Hortobagyi GN, Symmans WF. A Genomic Predictor of Response and Survival Following Taxane-Anthracycline Chemotherapy for Invasive Breast Cancer. JAMA 2011, 305: 1873-1881. PMID: 21558518, PMCID: PMC5638042, DOI: 10.1001/jama.2011.593.Peer-Reviewed Original ResearchMeSH KeywordsAdultAlgorithmsAnthracyclinesAntineoplastic Agents, HormonalAntineoplastic Combined Chemotherapy ProtocolsBiopsy, NeedleBreast NeoplasmsBridged-Ring CompoundsDisease-Free SurvivalDrug Resistance, NeoplasmFemaleForecastingGene Expression ProfilingGenes, erbB-2Genes, NeoplasmGenomicsHumansMiddle AgedNeoadjuvant TherapyNeoplasm Recurrence, LocalOligonucleotide Array Sequence AnalysisPredictive Value of TestsPrognosisProspective StudiesReceptors, EstrogenRiskTaxoidsConceptsDistant relapse-free survivalInvasive breast cancerBreast cancerGenomic predictorsD. Anderson Cancer CenterAnthracycline-based regimensER-negative subsetExcellent pathologic responseProspective multicenter studyRelapse-free survivalAbsolute risk reductionStandard cancer treatmentPredictors of responseIndependent validation cohortAnderson Cancer CenterNegative breast cancerCancer treatment strategiesSequential taxaneNeoadjuvant chemotherapyPreoperative chemotherapyPathologic responseWorse survivalEndocrine sensitivityER statusMulticenter study
2010
Stability of estrogen receptor status in breast carcinoma
Gong Y, Han EY, Guo M, Pusztai L, Sneige N. Stability of estrogen receptor status in breast carcinoma. Cancer 2010, 117: 705-713. PMID: 20939012, DOI: 10.1002/cncr.25506.Peer-Reviewed Original ResearchConceptsER statusBreast carcinomaEndocrine therapyMetastatic sitesPrimary tumorMetastatic tumorsMetastatic breast carcinomaEstrogen receptor statusER discordanceDisease courseReceptor statusSystemic therapyClinical courseER expressionER testingClinical managementNegative conversionER assaysDiscordant casesCarcinomaPositive conversionTumorsPatientsMetastasisTherapy
2008
Estrogen Receptor Expression and Efficacy of Docetaxel-Containing Adjuvant Chemotherapy in Patients With Node-Positive Breast Cancer: Results From a Pooled Analysis
Andre F, Broglio K, Roche H, Martin M, Mackey JR, Penault-Llorca F, Hortobagyi GN, Pusztai L. Estrogen Receptor Expression and Efficacy of Docetaxel-Containing Adjuvant Chemotherapy in Patients With Node-Positive Breast Cancer: Results From a Pooled Analysis. Journal Of Clinical Oncology 2008, 26: 2636-2643. PMID: 18509176, DOI: 10.1200/jco.2007.14.9146.Peer-Reviewed Original ResearchConceptsER-negative patientsER-positive patientsRisk of recurrenceDocetaxel therapyER expressionER statusPooled analysisBreast cancerNode-positive breast cancerCox proportional hazards modelAdjuvant chemotherapy trialsDisease-free survivalEfficacy of docetaxelEstrogen receptor expressionPositive breast cancerRisk of deathRandomized clinical trialsProportional hazards modelAdjuvant chemotherapyAdjuvant docetaxelChemotherapy trialsOverall survivalDocetaxel efficacyRandomized trialsClinical variablesPIK3CA-activating mutations and chemotherapy sensitivity in stage II–III breast cancer
Liedtke C, Cardone L, Tordai A, Yan K, Gomez HL, Figureoa LJ, Hubbard RE, Valero V, Souchon EA, Symmans WF, Hortobagyi GN, Bardelli A, Pusztai L. PIK3CA-activating mutations and chemotherapy sensitivity in stage II–III breast cancer. Breast Cancer Research 2008, 10: r27. PMID: 18371219, PMCID: PMC2397526, DOI: 10.1186/bcr1984.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAnthracyclinesAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsChemotherapy, AdjuvantClass I Phosphatidylinositol 3-KinasesDNA Mutational AnalysisFemaleHumansLymphatic MetastasisMiddle AgedMutationNeoadjuvant TherapyNeoplasm StagingPhosphatidylinositol 3-KinasesReceptor, ErbB-2Receptors, EstrogenReceptors, ProgesteroneTaxoidsConceptsPathological complete responseER-positive tumorsPIK3CA mutationsBreast cancerChemotherapy sensitivityPIK3CA exon 9 mutationsStage IIResidual cancer burden scoreER-negative breast tumorsReceptor expression statusNode-positive diseaseResultsTwenty-three patientsTaxane-based chemotherapyType of chemotherapyNode-positive tumorsPIK3CA-activating mutationsEstrogen receptor (ER) expression statusExon 9 mutationsPIK3CA activationRCB scoreChemotherapy regimenNeoadjuvant chemotherapyComplete responseResidual cancerER status
2007
Estrogen receptor expression and efficacy of docetaxel in early breast cancer: A pooled analysis of 3,490 patients included in two randomized trials
Andre F, Broglio K, Roche H, Martin M, Penault-Lorca F, Hortobagyi G, Berry D, Pusztai L. Estrogen receptor expression and efficacy of docetaxel in early breast cancer: A pooled analysis of 3,490 patients included in two randomized trials. Journal Of Clinical Oncology 2007, 25: 537-537. DOI: 10.1200/jco.2007.25.18_suppl.537.Peer-Reviewed Original ResearchEfficacy of docetaxelRisk of deathER-positive diseaseER-negative diseaseEstrogen receptor expressionER expressionER statusPooled analysisAdjuvant chemotherapyHazard ratioRandomized trialsReceptor expressionBreast cancerAxillary node-positive breast cancerNode-positive breast cancerDocetaxel-containing regimenEarly breast cancerSubset of patientsPositive breast cancerAdjuvant treatment trialsSignificant risk reductionAdjuvant settingClinical characteristicsDocetaxel therapyOverall survivalHER2 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 tauCancerChemotherapyInclusion of taxanes, particularly weekly paclitaxel, in preoperative chemotherapy improves pathologic complete response rate in estrogen receptor-positive breast cancers
Mazouni C, Kau S, Frye D, Andre F, Kuerer H, Buchholz T, Symmans W, Anderson K, Hess K, Gonzalez-Angulo A, Hortobagyi G, Buzdar A, Pusztai L. Inclusion of taxanes, particularly weekly paclitaxel, in preoperative chemotherapy improves pathologic complete response rate in estrogen receptor-positive breast cancers. Annals Of Oncology 2007, 18: 874-880. PMID: 17293601, DOI: 10.1093/annonc/mdm008.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsBridged-Ring CompoundsChemotherapy, AdjuvantCyclophosphamideDoxorubicinDrug Administration ScheduleFemaleFluorouracilHumansMiddle AgedNeoplasms, Hormone-DependentPaclitaxelPrognosisReceptors, EstrogenSurvival AnalysisTaxoidsTumor BurdenConceptsPathologic complete response rateComplete response rateER-negative tumorsPreoperative chemotherapyPCR rateER statusBreast cancerResponse rateEstrogen receptor-positive breast cancerReceptor-positive breast cancerMD Anderson Cancer CenterBreast cancer benefitER-negative statusInclusion of taxanesER-negative patientsER-positive patientsER-positive tumorsNeo-adjuvant therapyType of regimenClinical tumor sizeSubset of patientsCox regression analysisER-negative cancersPositive breast cancerAnderson Cancer Center
2003
Estrogen Receptors and Distinct Patterns of Breast Cancer Relapse
Hess KR, Pusztai L, Buzdar AU, Hortobagyi GN. Estrogen Receptors and Distinct Patterns of Breast Cancer Relapse. Breast Cancer Research And Treatment 2003, 78: 105-118. PMID: 12611463, DOI: 10.1023/a:1022166517963.Peer-Reviewed Original ResearchConceptsER-negative statusER-positive tumorsSite of recurrenceBreast cancer deathsFirst recurrenceER statusTumor recurrenceCancer deathClinical behaviorAdjuvant therapy protocolsOperable stage IIER-negative cancersER-positive statusRate of recurrenceBreast cancer relapseHigh rateMenopausal statusTumor burdenRecurrence rateBreast cancerEstrogen receptorCancer relapseRecurrencePatientsStage II