2023
Correlation of HER2 low status in I-SPY2 with molecular subtype, response, and survival.
Rugo H, Wolf D, Yau C, Petricoin E, Pohlmann P, Pusztai L, Symmans W, Borowsky A, Finestone S, Yee D, Hylton N, van 't Veer L, Esserman L, DeMichele A. Correlation of HER2 low status in I-SPY2 with molecular subtype, response, and survival. Journal Of Clinical Oncology 2023, 41: 514-514. DOI: 10.1200/jco.2023.41.16_suppl.514.Peer-Reviewed Original ResearchDistant recurrence-free survivalPathologic complete responseBreast cancerFisher's exact testExact testMolecular subtypesHER2-negative breast cancerHigh-risk breast cancerRisk breast cancerMetastatic breast cancerRecurrence-free survivalTN breast cancerRecurrence-free survival dataCox proportional hazardsHER2 gene amplificationI-SPY2TN diseaseFree survivalOverall survivalComplete responseHazard ratioTrastuzumab deruxtecanEndocrine sensitivityT-DXdTreatment arms
2022
Pathologic complete response (pCR) rates for HR+/HER2- breast cancer by molecular subtype in the I-SPY2 Trial.
Huppert L, Rugo H, Pusztai L, Mukhtar R, Chien A, Yau C, Wolf D, Berry D, van 't Veer L, Yee D, DeMichele A, Esserman L, Consortium I. Pathologic complete response (pCR) rates for HR+/HER2- breast cancer by molecular subtype in the I-SPY2 Trial. Journal Of Clinical Oncology 2022, 40: 504-504. DOI: 10.1200/jco.2022.40.16_suppl.504.Peer-Reviewed Original ResearchI-SPY2 trialInvestigational agentsMolecular subtypesNodal statusPathologic complete response rateMultiple investigational agentsComplete response ratePhase 3 trialHER2- breast cancerLuminal statusNeoadjuvant therapyPrimary endpointImmune signaturesPCR rateTreatment armsHeterogenous diseaseBC therapySubtype 5Breast cancerImmune biologyResponse ratePembrolizumabHormone receptorsDiseaseTrials
2020
Association of Event-Free and Distant Recurrence–Free Survival With Individual-Level Pathologic Complete Response in Neoadjuvant Treatment of Stages 2 and 3 Breast Cancer
Consortium I, Yee D, DeMichele A, Yau C, Isaacs C, Symmans W, Albain K, Chen Y, Krings G, Wei S, Harada S, Datnow B, Fadare O, Klein M, Pambuccian S, Chen B, Adamson K, Sams S, Mhawech-Fauceglia P, Magliocco A, Feldman M, Rendi M, Sattar H, Zeck J, Ocal I, Tawfik O, LeBeau L, Sahoo S, Vinh T, Chien A, Forero-Torres A, Stringer-Reasor E, Wallace A, Pusztai L, Boughey J, Ellis E, Elias A, Lu J, Lang J, Han H, Clark A, Nanda R, Northfelt D, Khan Q, Viscusi R, Euhus D, Edmiston K, Chui S, Kemmer K, Park J, Liu M, Olopade O, Leyland-Jones B, Tripathy D, Moulder S, Rugo H, Schwab R, Lo S, Helsten T, Beckwith H, Haugen P, Hylton N, Veer L, Perlmutter J, Melisko M, Wilson A, Peterson G, Asare A, Buxton M, Paoloni M, Clennell J, Hirst G, Singhrao R, Steeg K, Matthews J, Asare S, Sanil A, Berry S, Esserman L, Berry D. Association of Event-Free and Distant Recurrence–Free Survival With Individual-Level Pathologic Complete Response in Neoadjuvant Treatment of Stages 2 and 3 Breast Cancer. JAMA Oncology 2020, 6: 1355-1362. PMID: 32701140, PMCID: PMC7378873, DOI: 10.1001/jamaoncol.2020.2535.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsBridged-Ring CompoundsCyclophosphamideDisease-Free SurvivalDoxorubicinFemaleHumansMiddle AgedNeoadjuvant TherapyNeoplasm Recurrence, LocalProgression-Free SurvivalProportional Hazards ModelsReceptor, ErbB-2TaxoidsTrastuzumabTreatment OutcomeConceptsDistant recurrence-free survivalPathologic complete responseEvent-free survivalI-SPY2 trialRecurrence-free survivalLong-term outcomesBreast cancerComplete responseNeoadjuvant therapyPlatform trialsMolecular subtypesHigh-risk operable breast cancerThree-year event-free survivalHormone receptorsClinical stage 2Phase 3 confirmatory trialOperable breast cancerSubpopulation of womenNovel therapeutic combinationsStage 2Investigational regimensNeoadjuvant treatmentPrior surgeryTaxane treatmentStandard therapy
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
2018
An integrative bioinformatics approach reveals coding and non-coding gene variants associated with gene expression profiles and outcome in breast cancer molecular subtypes
Győrffy B, Pongor L, Bottai G, Li X, Budczies J, Szabó A, Hatzis C, Pusztai L, Santarpia L. An integrative bioinformatics approach reveals coding and non-coding gene variants associated with gene expression profiles and outcome in breast cancer molecular subtypes. British Journal Of Cancer 2018, 118: 1107-1114. PMID: 29559730, PMCID: PMC5931099, DOI: 10.1038/s41416-018-0030-0.Peer-Reviewed Original ResearchConceptsHER2-negative tumorsBreast cancer patientsCancer patientsER-positive/HER2-negative tumorsBreast cancer molecular subtypesMETABRIC data setMolecular breast cancer subtypesCox regression analysisBreast cancer subtypesCancer molecular subtypesGene expression profilesMann-Whitney U testRegression analysisMultivariate regression analysisPrognostic valueKaplan-MeierBreast cancerClinical dataDisease outcomeTCGA cohortGene expressionMolecular subtypesCancer-associated genesCancer-related genesClinical relevance
2015
CCR 20th Anniversary Commentary: Divide and Conquer—Breast Cancer Subtypes and Response to Therapy
Pusztai L, Rouzier R, Symmans WF. CCR 20th Anniversary Commentary: Divide and Conquer—Breast Cancer Subtypes and Response to Therapy. Clinical Cancer Research 2015, 21: 3575-3577. PMID: 26275950, DOI: 10.1158/1078-0432.ccr-14-3121.Peer-Reviewed Original ResearchConceptsBreast cancerPathologic complete response rateTriple-negative breast cancerAdjuvant treatment optionsResidual invasive diseaseComplete response rateHER2-positive cancersDifferent molecular subtypesClin Cancer ResClinical cancer researchAnniversary CommentaryNeoadjuvant therapyTreatment optionsInvasive diseaseClinical trialsMolecular subtypesResponse rateCancer subtypesCancer ResExtent of responseCancerSubtypesTherapyCancer researchChemotherapy
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 chipsCorrelation of intratumor gene expression heterogeneity with chemotherapy sensitivity in breast cancer.
Natowicz R, Jiang T, Shi W, Qi Y, Delpech Y, Symmans W, Pusztai L. Correlation of intratumor gene expression heterogeneity with chemotherapy sensitivity in breast cancer. Journal Of Clinical Oncology 2013, 31: 1013-1013. DOI: 10.1200/jco.2013.31.15_suppl.1013.Peer-Reviewed Original ResearchPathologic complete responseBasal-like cancersBreast cancerNeoadjuvant chemotherapyChemotherapy sensitivityCancer subtypesLuminal B cancersDifferent molecular subtypesBreast cancer subtypesB cancersComplete responseLuminal cancersResidual diseaseMolecular subtypesStage ICancerGene signatureGreat heterogeneitySubtypesTumor heterogeneityChemotherapySignificant differences
2012
172O 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 valueHER2DNA repair metagene signature as a prognostic and predictive factor in molecular breast cancer subtypes.
Santarpia L, Iwamoto T, Di Leo A, Hayashi N, Stampfer M, Guarducci C, Symmans W, Hortobagyi G, Pusztai L, Giampaolo B. DNA repair metagene signature as a prognostic and predictive factor in molecular breast cancer subtypes. Journal Of Clinical Oncology 2012, 30: 1012-1012. DOI: 10.1200/jco.2012.30.15_suppl.1012.Peer-Reviewed Original ResearchPathological complete responseHigher pathological complete responseBreast cancer molecular subtypesTaxane-based regimensTaxane-containing regimensCisplatin-containing regimensMolecular breast cancer subtypesTaxane-based chemotherapyPotential predictive markerBreast cancer subtypesCancer molecular subtypesBC cell linesFalse discovery correctionDistant relapseComplete responseBetter prognosisPoor prognosisPredictive factorsPrognostic valueBC subtypesER-/HER2Predictive markerN patientsPrognostic markerMolecular subtypesMutation profiling identifies numerous rare drug targets and distinct mutation patterns in different clinical subtypes of breast cancers
Santarpia L, Qi Y, Stemke-Hale K, Wang B, Young EJ, Booser DJ, Holmes FA, O’Shaughnessy J, Hellerstedt B, Pippen J, Vidaurre T, Gomez H, Valero V, Hortobagyi GN, Symmans WF, Bottai G, Di Leo A, Gonzalez-Angulo AM, Pusztai L. Mutation profiling identifies numerous rare drug targets and distinct mutation patterns in different clinical subtypes of breast cancers. Breast Cancer Research And Treatment 2012, 134: 333-343. PMID: 22538770, PMCID: PMC3885980, DOI: 10.1007/s10549-012-2035-3.Peer-Reviewed Original ResearchConceptsTriple-negative breast cancerBreast cancer subtypesBreast cancerPIK3CA mutationsCancer subtypesEstrogen receptor-positive cancersBreast cancer molecular subtypesMajor breast cancer subtypesSingle needle biopsyProspective clinical trialsReceptor-positive cancersDifferent breast cancer subtypesDifferent clinical subtypesNegative breast cancerCancer molecular subtypesFine-needle aspirationMutation patternsClinical subtypesClinical trialsNeedle biopsyMolecular subtypesNeedle aspirationInvestigational drugsStage IFBXW7 mutations
2011
Gene pathways associated with prognosis and chemotherapy sensitivity in different molecular subtypes of breast cancer
Pusztai L. Gene pathways associated with prognosis and chemotherapy sensitivity in different molecular subtypes of breast cancer. Breast Cancer Research 2011, 13: o1. PMCID: PMC3247034, DOI: 10.1186/bcr3000.Peer-Reviewed Original ResearchGene expression profiling in breast cancer: classification, prognostication, and prediction
Reis-Filho JS, Pusztai L. Gene expression profiling in breast cancer: classification, prognostication, and prediction. The Lancet 2011, 378: 1812-1823. PMID: 22098854, DOI: 10.1016/s0140-6736(11)61539-0.Peer-Reviewed Original ResearchConceptsBreast cancerER-negative breast cancerGene expression profilingER-positive diseasePrognosis of patientsDistinct molecular aberrationsMolecular classification systemPotential clinical useClinical behaviorHistological featuresClinical trialsMolecular subtypesProliferation-related genesMultigene classifiersClinical practiceMolecular aberrationsExpression profilingCancerDistinct diseasesMultigene predictorsClinical useMolecular classificationDiseaseHeterogeneous groupDifferent diseasesArtificial neural network analysis of circulating tumor cells in metastatic breast cancer patients
Giordano A, Giuliano M, De Laurentiis M, Eleuteri A, Iorio F, Tagliaferri R, Hortobagyi GN, Pusztai L, De Placido S, Hess K, Cristofanilli M, Reuben JM. Artificial neural network analysis of circulating tumor cells in metastatic breast cancer patients. Breast Cancer Research And Treatment 2011, 129: 451-458. PMID: 21710134, DOI: 10.1007/s10549-011-1645-5.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorBreast NeoplasmsFemaleHumansImmunohistochemistryKaplan-Meier EstimateLinear ModelsMiddle AgedNeoplastic Cells, CirculatingNeural Networks, ComputerPrognosisProportional Hazards ModelsReceptor, ErbB-2Receptors, EstrogenReceptors, ProgesteroneRetrospective StudiesRisk AssessmentRisk FactorsSurvival RateTexasTime FactorsConceptsMetastatic breast cancer patientsRisk of deathBreast cancer patientsCTC countMBC patientsPrognostic effectCancer patientsTumor subtypesTumor cellsMD Anderson Cancer CenterConsecutive MBC patientsTriple-negative MBCMetastatic disease sitesAnderson Cancer CenterTumor molecular subtypeNumber of CTCsMolecular tumor subtypesVisceral metastasesOverall survivalCancer CenterHER2 statusProgesterone receptorMolecular subtypesTherapy typePrognostic toolA 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 IDifferent gene expressions are associated with the different molecular subtypes of inflammatory breast cancer
Iwamoto T, Bianchini G, Qi Y, Cristofanilli M, Lucci A, Woodward WA, Reuben JM, Matsuoka J, Gong Y, Krishnamurthy S, Valero V, Hortobagyi GN, Robertson F, Symmans WF, Pusztai L, Ueno NT. Different gene expressions are associated with the different molecular subtypes of inflammatory breast cancer. Breast Cancer Research And Treatment 2010, 125: 785-795. PMID: 21153052, PMCID: PMC4109066, DOI: 10.1007/s10549-010-1280-6.Peer-Reviewed Original ResearchConceptsInflammatory breast cancerClinical subtypesBreast cancerNon-IBC patientsCase-control studyDistinct clinical subtypesDifferent molecular subtypesNon-IBC tumorsSignificant differencesNon-IBC specimensImmune system-related pathwaysLipid metabolism-related pathwaysHER2 statusReceptor phenotypeMetabolism-related pathwaysMolecular subtypesIBC tumorsSurvival curvesSubtypesTumor samplesHormone receptorsCancerPatientsT-testHER2
2009
Clinical Subtype-Derived p53 Gene Signature Is Predictive of Prognosis and Response to Chemotherapy in ER-Positive but Not in ER-Negative Breast Cancers.
Pusztai L, Rouzier R, Qi Y, Lehmann-Che J, Bianchini G, Iwamoto T, Symmans W, Andre F, de The H, Coutant C, Coutant C. Clinical Subtype-Derived p53 Gene Signature Is Predictive of Prognosis and Response to Chemotherapy in ER-Positive but Not in ER-Negative Breast Cancers. Cancer Research 2009, 69: 6122-6122. DOI: 10.1158/0008-5472.sabcs-09-6122.Peer-Reviewed Original ResearchDistant metastasis-free survivalP53 signatureBreast cancerER- cancersPredictive valueWorse distant metastasis-free survivalSystemic adjuvant therapyER- breast cancerMetastasis-free survivalNegative breast cancerDifferent molecular subtypesP53 functional statusP53 gene mutationsGene expression-based predictorsP53 mutation statusAdjuvant tamoxifenAdjuvant therapyFree survivalBackgroundBreast cancerFunctional statusMolecular subtypesIndependent cohortNeoplastic diseaseChemotherapy sensitivityMutation statusDifferent Biological Processes Are Associated with Prognosis and Chemotherapy Sensitivity in the Different Molecular Subtypes of Breast Cancer.
Iwamoto T, Iwamoto T, Bianchini G, Coutant C, Shiang C, Matsuoka J, Symmans W, Hortobagyi G, Simon R, Pusztai L. Different Biological Processes Are Associated with Prognosis and Chemotherapy Sensitivity in the Different Molecular Subtypes of Breast Cancer. Cancer Research 2009, 69: 6124-6124. DOI: 10.1158/0008-5472.sabcs-09-6124.Peer-Reviewed Original ResearchER- cancersDifferent molecular subtypesChemotherapy sensitivityChemotherapy responseBreast cancerMolecular subtypesMeta-AnalysisPrognostic pathwaysCohort of patientsPlasma cell functionT cell differentiationNeoadjuvant therapySeparate cohortImmune functionPrognosisGlycolipid metabolismPredictive gene setsBlood vessel formationDifferent subtypesCancerCancer ResOxidative stressCell functionSubtypesVessel formation
2008
Effect of Molecular Disease Subsets on Disease-Free Survival in Randomized Adjuvant Chemotherapy Trials for Estrogen Receptor–Positive Breast Cancer
Pusztai L, Broglio K, Andre F, Symmans WF, Hess KR, Hortobagyi GN. Effect of Molecular Disease Subsets on Disease-Free Survival in Randomized Adjuvant Chemotherapy Trials for Estrogen Receptor–Positive Breast Cancer. Journal Of Clinical Oncology 2008, 26: 4679-4683. PMID: 18662965, DOI: 10.1200/jco.2008.17.2544.Peer-Reviewed Original ResearchConceptsDisease-free survivalER-positive breast cancerAdjuvant chemotherapy trialsProportion of patientsBreast cancerChemotherapy trialsRS patientsEstrogen receptor-positive breast cancerRandomized adjuvant chemotherapy trialReceptor-positive breast cancerFuture adjuvant studiesProportion of casesTwo-arm clinical trialChemotherapy decreasesMolecular diagnostic testsAdjuvant chemotherapyEndocrine therapyAdjuvant studiesDisease subsetsPositive cancersClinical trialsDFS estimatesRisk groupsEstrogen receptorMolecular subtypes