2024
Identification of HER2-positive breast cancer molecular subtypes with potential clinical implications in the ALTTO clinical trial
Rediti M, Venet D, Joaquin Garcia A, Maetens M, Vincent D, Majjaj S, El-Abed S, Di Cosimo S, Ueno T, Izquierdo M, Piccart M, Pusztai L, Loi S, Salgado R, Viale G, Rothé F, Sotiriou C. Identification of HER2-positive breast cancer molecular subtypes with potential clinical implications in the ALTTO clinical trial. Nature Communications 2024, 15: 10402. PMID: 39613746, PMCID: PMC11607438, DOI: 10.1038/s41467-024-54621-3.Peer-Reviewed Original ResearchMeSH KeywordsAntineoplastic Agents, ImmunologicalBiomarkers, TumorBreast NeoplasmsClinical Trials, Phase III as TopicFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansMiddle AgedNeoplasm Recurrence, LocalPrognosisRandomized Controlled Trials as TopicReceptor, ErbB-2TrastuzumabTumor MicroenvironmentConceptsHER2-positive breast cancerMolecular subtypesBreast cancerRate of pathological complete responseSensitive to HER2-targeted therapiesClinical trialsRisk of distant recurrenceBreast cancer molecular subtypesPathological complete responseHER2-targeted therapyCancer molecular subtypesPotential clinical implicationsNeoALTTO trialDistant recurrenceComplete responseAdjuvant trastuzumabPrognostic/predictive valueHeterogeneous biologySurvival outcomesI-SPY2Clinical outcomesMicroenvironment featuresGene expression profilesExternal cohortTumorImage‐based multiplex immune profiling of cancer tissues: translational implications. A report of the International Immuno‐oncology Biomarker Working Group on Breast Cancer
Jahangir C, Page D, Broeckx G, Gonzalez C, Burke C, Murphy C, Reis‐Filho J, Ly A, Harms P, Gupta R, Vieth M, Hida A, Kahila M, Kos Z, van Diest P, Verbandt S, Thagaard J, Khiroya R, Abduljabbar K, Haab G, Acs B, Adams S, Almeida J, Alvarado‐Cabrero I, Azmoudeh‐Ardalan F, Badve S, Baharun N, Bellolio E, Bheemaraju V, Blenman K, Fujimoto L, Burgues O, Chardas A, Cheang M, Ciompi F, Cooper L, Coosemans A, Corredor G, Portela F, Deman F, Demaria S, Dudgeon S, Elghazawy M, Fernandez‐Martín C, Fineberg S, Fox S, Giltnane J, Gnjatic S, Gonzalez‐Ericsson P, Grigoriadis A, Halama N, Hanna M, Harbhajanka A, Hart S, Hartman J, Hewitt S, Horlings H, Husain Z, Irshad S, Janssen E, Kataoka T, Kawaguchi K, Khramtsov A, Kiraz U, Kirtani P, Kodach L, Korski K, Akturk G, Scott E, Kovács A, Lænkholm A, Lang‐Schwarz C, Larsimont D, Lennerz J, Lerousseau M, Li X, Madabhushi A, Maley S, Narasimhamurthy V, Marks D, McDonald E, Mehrotra R, Michiels S, Kharidehal D, Minhas F, Mittal S, Moore D, Mushtaq S, Nighat H, Papathomas T, Penault‐Llorca F, Perera R, Pinard C, Pinto‐Cardenas J, Pruneri G, Pusztai L, Rajpoot N, Rapoport B, Rau T, Ribeiro J, Rimm D, Vincent‐Salomon A, Saltz J, Sayed S, Hytopoulos E, Mahon S, Siziopikou K, Sotiriou C, Stenzinger A, Sughayer M, Sur D, Symmans F, Tanaka S, Taxter T, Tejpar S, Teuwen J, Thompson E, Tramm T, Tran W, van der Laak J, Verghese G, Viale G, Wahab N, Walter T, Waumans Y, Wen H, Yang W, Yuan Y, Bartlett J, Loibl S, Denkert C, Savas P, Loi S, Stovgaard E, Salgado R, Gallagher W, Rahman A. Image‐based multiplex immune profiling of cancer tissues: translational implications. A report of the International Immuno‐oncology Biomarker Working Group on Breast Cancer. The Journal Of Pathology 2024, 262: 271-288. PMID: 38230434, PMCID: PMC11288342, DOI: 10.1002/path.6238.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorBreast NeoplasmsFemaleHumansPhenotypePrognosisTumor MicroenvironmentUnited KingdomConceptsImmune profileInternational Immuno-Oncology Biomarker Working GroupIdentification of clinically relevant biomarkersField of immuno-oncologyBiomarker Working GroupManagement of cancer patientsImmune profiling of tumorsClinical trial perspectiveTranslational implicationsProfiling of tumorsIndividual tumor cellsPredicting disease prognosisClinically relevant biomarkersSubtypes of cancerImmuno-oncologyTumor microenvironmentMultiplex immunohistochemistryTreatment responseTumor cellsBreast cancerTumor samplesCancer patientsTreatment choiceDisease prognosisRelevant biomarkers
2023
Molecular Characterization of HER2-Low Invasive Breast Carcinoma by Quantitative RT-PCR Using Oncotype DX Assay
Lin H, Can T, Kahn A, Flannery C, Hoag J, Akkunuri A, Bailey H, Baehner R, Pusztai L, Rozenblit M. Molecular Characterization of HER2-Low Invasive Breast Carcinoma by Quantitative RT-PCR Using Oncotype DX Assay. The Oncologist 2023, 28: e973-e976. PMID: 37656608, PMCID: PMC10546821, DOI: 10.1093/oncolo/oyad249.Peer-Reviewed Original ResearchConceptsHER2 mRNA levelsIHC 0MRNA levelsOncotype DX recurrence score resultsEstrogen receptor-positive breast cancerReceptor-positive breast cancerCurrent adjuvant chemotherapyOncotype DX assayRecurrence Score resultsPositive breast cancerInvasive breast carcinomaIHC score 0Adjuvant chemotherapyQuantitative RT-PCRBreast carcinomaPositive statusScore 0Breast cancerStage IYale cohortHigher mRNA levelsCancerRT-PCRPatientsHER2Intratumor spatial heterogeneity in programmed death-ligand 1 (PD-L1) protein expression in early-stage breast cancer
Kahn A, Golestani R, Harigopal M, Pusztai L. Intratumor spatial heterogeneity in programmed death-ligand 1 (PD-L1) protein expression in early-stage breast cancer. Breast Cancer Research And Treatment 2023, 201: 289-298. PMID: 37378695, DOI: 10.1007/s10549-023-06977-1.Peer-Reviewed Original ResearchConceptsTriple-negative breast cancerPD-L1 expressionBreast cancerPD-L1Metastatic triple-negative breast cancerPD-L1 positive casesEarly-stage breast cancerPD-L1 protein expressionImmune checkpoint inhibitorsPD-L1 positivityPD-L1 statusProtein expressionWhole study populationPrimary breast tumorsNegative breast cancerConcordant negative resultsCheckpoint inhibitorsMultiple biopsiesPositive cancersCohen's kappa coefficientStudy populationE1L3N antibodyDiscordance rateBreast tumorsPositive casesNeoadjuvant Immunotherapy in Early, Triple-Negative Breast Cancers: Catching Up with the Rest
Kim L, Coman M, Pusztai L, Park T. Neoadjuvant Immunotherapy in Early, Triple-Negative Breast Cancers: Catching Up with the Rest. Annals Of Surgical Oncology 2023, 30: 6441-6449. PMID: 37349612, DOI: 10.1245/s10434-023-13714-x.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorCombined Modality TherapyHumansImmunotherapyNeoadjuvant TherapyTriple Negative Breast NeoplasmsConceptsTriple-negative breast cancerTumor mutational burdenBreast cancerAdjuvant therapyPathological complete response rateImmune checkpoint modulationComplete response rateExcellent clinical outcomesCombination immunochemotherapyNeoadjuvant immunotherapyNeoadjuvant settingNeoadjuvant chemotherapyOverall survivalPD-L1Checkpoint modulationClinical outcomesMajor trialsMutational burdenResponse rateCancer typesCancerTherapyBiomarkersOutcomesExciting advancesVariable Landscape of PD-L1 Expression in Breast Carcinoma as Detected by the DAKO 22C3 Immunohistochemistry Assay
Danziger N, Sokol E, Graf R, Hiemenz M, Maule J, Parimi V, Palmieri C, Pusztai L, Ross J, Huang R. Variable Landscape of PD-L1 Expression in Breast Carcinoma as Detected by the DAKO 22C3 Immunohistochemistry Assay. The Oncologist 2023, 28: 319-326. PMID: 36866462, PMCID: PMC10078903, DOI: 10.1093/oncolo/oyad025.Peer-Reviewed Original ResearchMeSH KeywordsB7-H1 AntigenBiomarkers, TumorCarcinoma, Non-Small-Cell LungHumansImmunohistochemistryLung NeoplasmsTriple Negative Breast NeoplasmsConceptsTriple-negative breast cancerPD-L1 expressionNegative triple negative breast cancerTNBC tissue samplesPD-L1 positivityPD-L1Dako 22C3Breast cancerDeath ligand 1 (PD-L1) immunohistochemistry (IHC) assaysPD-L1 groupNon-TNBC patientsTissue samplesComprehensive genomic profilingBreast cancer subtypesFoundationOne CDxImmunotherapy efficacyMetastatic sitesTNBC casesBC patientsBreast carcinomaPositive statusImmunohistochemistry assaysOptimum cutoffCancer subtypesGenomic profilingTumor-Derived Extracellular Vesicles as Complementary Prognostic Factors to Circulating Tumor Cells in Metastatic Breast Cancer
Nanou A, Miao J, Coumans F, Dolce E, Darga E, Barlow W, Smerage J, Paoletti C, Godwin A, Pusztai L, Sharma P, Thompson A, Hortobagyi G, Terstappen L, Hayes D. Tumor-Derived Extracellular Vesicles as Complementary Prognostic Factors to Circulating Tumor Cells in Metastatic Breast Cancer. JCO Precision Oncology 2023, 7: e2200372. PMID: 36634296, PMCID: PMC9928629, DOI: 10.1200/po.22.00372.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorBreast NeoplasmsClinical Trials as TopicFemaleHumansNeoplastic Cells, CirculatingPrognosisProspective StudiesConceptsCycles of chemotherapyMetastatic breast cancerTumor-derived extracellular vesiclesOverall survivalBreast cancerTumor cellsExtracellular vesiclesComplementary prognostic factorComplementary prognostic valuePoor overall survivalAdditional prognostic biomarkerLonger OSPrognostic factorsPrognostic significanceCTC countPrognostic valuePrognostic biomarkerChemotherapyCancerPatientsCTCsCellsBiomarkers
2022
PD-L1 protein expression in relation to recurrence score values in early-stage ER + breast cancer
Rozenblit M, Blenman K, Harigopal M, Reisenbichler E, Singh K, Qing T, Ibrahim E, Ramkissoon S, Asmelash S, Lin HK, Roberts M, Ross J, Huang RSP, Pusztai L. PD-L1 protein expression in relation to recurrence score values in early-stage ER + breast cancer. Breast Cancer Research And Treatment 2022, 196: 221-227. PMID: 36028784, DOI: 10.1007/s10549-022-06712-2.Peer-Reviewed Original ResearchMeSH KeywordsB7-H1 AntigenBiomarkers, TumorBreast NeoplasmsFemaleHumansLymphocyte CountLymphocytes, Tumor-InfiltratingPrognosisConceptsPD-L1 positivityPD-L1 protein expressionPD-L1 expressionGrade 3 cancersPD-L1TIL scoreTumor gradeMultivariate analysisHigher PD-L1 positivityTumor-infiltrating lymphocyte countsConclusionPD-L1 expressionProtein expressionPD-L1 immunohistochemistryChi-square testResultsPD-L1T1 cancersLymphocyte countT3 tumorsIndependent predictorsTumor sizeLarge tumorsPositivity rateCell positivityBreast cancerGrade 2Redefining breast cancer subtypes to guide treatment prioritization and maximize response: Predictive biomarkers across 10 cancer therapies
Wolf DM, Yau C, Wulfkuhle J, Brown-Swigart L, Gallagher RI, Lee PRE, Zhu Z, Magbanua MJ, Sayaman R, O’Grady N, Basu A, Delson A, Coppé JP, Lu R, Braun J, Investigators I, Asare SM, Sit L, Matthews JB, Perlmutter J, Hylton N, Liu MC, Pohlmann P, Symmans WF, Rugo HS, Isaacs C, DeMichele AM, Yee D, Berry DA, Pusztai L, Petricoin EF, Hirst GL, Esserman LJ, van 't Veer LJ. Redefining breast cancer subtypes to guide treatment prioritization and maximize response: Predictive biomarkers across 10 cancer therapies. Cancer Cell 2022, 40: 609-623.e6. PMID: 35623341, PMCID: PMC9426306, DOI: 10.1016/j.ccell.2022.05.005.Peer-Reviewed Original ResearchConceptsBreast cancer subtypesHormone receptorsHuman epidermal growth factor receptor 2 (HER2) statusCancer subtypesEpidermal growth factor receptor 2 statusPathologic complete response rateTreatment prioritizationComplete response ratePatient selectionPredictive biomarkersTreatment allocationPlatform trialsClinical dataLuminal phenotypeTreatment selectionResponse rateTumor biologyNew treatmentsDrug responseSubtypesCancer therapyBiomarkersProtein/phosphoproteinGene expressionDiverse biologyBiomarkers for Adjuvant Endocrine and Chemotherapy in Early-Stage Breast Cancer: ASCO Guideline Update
Andre F, Ismaila N, Allison KH, Barlow WE, Collyar DE, Damodaran S, Henry NL, Jhaveri K, Kalinsky K, Kuderer NM, Litvak A, Mayer EL, Pusztai L, Raab R, Wolff AC, Stearns V. Biomarkers for Adjuvant Endocrine and Chemotherapy in Early-Stage Breast Cancer: ASCO Guideline Update. Journal Of Clinical Oncology 2022, 40: 1816-1837. PMID: 35439025, DOI: 10.1200/jco.22.00069.Peer-Reviewed Original ResearchConceptsBreast Cancer IndexEarly-stage breast cancerHER2- breast cancerAdjuvant endocrinePositive nodesBreast cancerEndocrine therapyPostmenopausal patientsPremenopausal patientsHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Early-stage estrogen receptorTriple-negative breast cancerAdjuvant therapy decisionsASCO Guideline UpdateExtended endocrine therapyProspective-retrospective studyEvidence of recurrenceGrowth factor receptor 2Recurrence-free survivalGenomic testsNegative breast cancerEvidence-based recommendationsFactor receptor 2Outcomes of interestPredictive Markers of Response to Neoadjuvant Durvalumab with Nab-Paclitaxel and Dose-Dense Doxorubicin/Cyclophosphamide in Basal-Like Triple-Negative Breast Cancer.
Blenman KRM, Marczyk M, Karn T, Qing T, Li X, Gunasekharan V, Yaghoobi V, Bai Y, Ibrahim EY, Park T, Silber A, Wolf DM, Reisenbichler E, Denkert C, Sinn BV, Rozenblit M, Foldi J, Rimm DL, Loibl S, Pusztai L. Predictive Markers of Response to Neoadjuvant Durvalumab with Nab-Paclitaxel and Dose-Dense Doxorubicin/Cyclophosphamide in Basal-Like Triple-Negative Breast Cancer. Clinical Cancer Research 2022, 28: 2587-2597. PMID: 35377948, PMCID: PMC9464605, DOI: 10.1158/1078-0432.ccr-21-3215.Peer-Reviewed Original ResearchConceptsBasal-like triple-negative breast cancerPathologic complete responseResidual diseaseNeoadjuvant durvalumabDNA damage repairSomatic mutationsBreast cancerWnt/β-cateninHigh expressionTriple-negative breast cancerBasal-Like TripleDoxorubicin/cyclophosphamideDNA repairTumor mutation burdenRNA sequencingEpithelial-mesenchymal transitionFive-gene signatureB-cell markersCancer driversEnrichment analysisNegative breast cancerDamage repairGene expressionJAK-STATCell cycle
2021
Quantitative assessment of the immune microenvironment in African American Triple Negative Breast Cancer: a case–control study
Yaghoobi V, Moutafi M, Aung TN, Pelekanou V, Yaghoubi S, Blenman K, Ibrahim E, Vathiotis IA, Shafi S, Sharma A, O’Meara T, Fernandez AI, Pusztai L, Rimm DL. Quantitative assessment of the immune microenvironment in African American Triple Negative Breast Cancer: a case–control study. Breast Cancer Research 2021, 23: 113. PMID: 34906209, PMCID: PMC8670126, DOI: 10.1186/s13058-021-01493-w.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorBlack or African AmericanCase-Control StudiesHumansTriple Negative Breast NeoplasmsTumor MicroenvironmentConceptsNegative breast cancerT cellsTumor microenvironmentAA patientsImmune cellsAA tumorsBreast cancerPurposeTriple-negative breast cancerAfrican AmericansTriple-negative breast cancerCase-control studySignificant differencesActivated T cellsImmunologic biomarkersPD-L1Lymphocytic infiltrationLymphoid infiltrationImmune microenvironmentControl cohortTNBC tumorsMyeloid markersQuantitative immunofluorescenceMean expression levelPatientsTNBCOptimal Management for Residual Disease Following Neoadjuvant Systemic Therapy
Foldi J, Rozenblit M, Park TS, Knowlton CA, Golshan M, Moran M, Pusztai L. Optimal Management for Residual Disease Following Neoadjuvant Systemic Therapy. Current Treatment Options In Oncology 2021, 22: 79. PMID: 34213636, DOI: 10.1007/s11864-021-00879-4.Peer-Reviewed Original ResearchConceptsPathologic complete responseResidual cancerClinical trialsAdjuvant therapyExcellent long-term disease-free survivalLong-term disease-free survivalAxillary lymph node dissectionHuman epidermal growth factor receptor 2Early-stage breast cancerEpidermal growth factor receptor 2Post-mastectomy breastSystemic adjuvant therapyInternal mammary nodesLymph node dissectionNeoadjuvant systemic therapyDisease-free survivalGrowth factor receptor 2Minimal residual disease monitoringRecurrence-free survivalType of surgeryPivotal clinical trialsOngoing clinical trialsFactor receptor 2Residual disease monitoringAccurate prognostic estimatesClinicopathologic and Genomic Landscape of Breast Carcinoma Brain Metastases
Huang RSP, Haberberger J, McGregor K, Mata DA, Decker B, Hiemenz MC, Lechpammer M, Danziger N, Schiavone K, Creeden J, Graf RP, Strowd R, Lesser GJ, Razis ED, Bartsch R, Giannoudis A, Bhogal T, Lin NU, Pusztai L, Ross JS, Palmieri C, Ramkissoon SH. Clinicopathologic and Genomic Landscape of Breast Carcinoma Brain Metastases. The Oncologist 2021, 26: 835-844. PMID: 34105210, PMCID: PMC8488784, DOI: 10.1002/onco.13855.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorBrain NeoplasmsGenomicsHumansRetrospective StudiesTriple Negative Breast NeoplasmsConceptsComprehensive genomic profilingPD-L1 immunohistochemistryBrain metastasesTumor mutational burdenPrimary breast carcinomaRelevant genomic alterationsBreast carcinomaPrimary tumorHigh prevalenceMutational burdenCerebrospinal fluidTissue acquisitionCatalytic polypeptide-like (APOBEC) mutational signatureGenomic alterationsPrimary breast carcinoma specimensHigh tumor mutational burdenGenomic profilingTriple-negative breast carcinomaTNBC brain metastasisCohort of patientsBrain metastasis samplesBreast carcinoma specimensHigher positive rateHigh microsatellite instabilityApolipoprotein B mRNA editing enzymeDiverse immune response of DNA damage repair-deficient tumors
Qing T, Jun T, Lindblad KE, Lujambio A, Marczyk M, Pusztai L, Huang KL. Diverse immune response of DNA damage repair-deficient tumors. Cell Reports Medicine 2021, 2: 100276. PMID: 34095878, PMCID: PMC8149377, DOI: 10.1016/j.xcrm.2021.100276.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorDNA DamageDNA RepairDNA Repair-Deficiency DisordersGenomicsHumansImmunityImmunotherapyMutationNeoplasmsConceptsCancer typesDDR-deficient tumorsImmune checkpoint inhibitorsHigh neoantigen loadDifferent immune phenotypesDiverse immune responsesAdaptive immune markersRepair-deficient tumorsDDR deficiencyCheckpoint inhibitorsImmunotherapy outcomesDNA damage repair deficiencyImmune infiltratesImmune markersNeoantigen loadSurvival outcomesImmune phenotypeTumor neoantigensImmune responseAnimal modelsGenomic biomarkersGermline mutationsPathway mutationsTumorsRepair deficiencyComparison of programmed death-ligand 1 protein expression between primary and metastatic lesions in patients with lung cancer
Moutafi MK, Tao W, Huang R, Haberberger J, Alexander B, Ramkissoon S, Ross JS, Syrigos K, Wei W, Pusztai L, Rimm DL, Vathiotis IA. Comparison of programmed death-ligand 1 protein expression between primary and metastatic lesions in patients with lung cancer. Journal For ImmunoTherapy Of Cancer 2021, 9: e002230. PMID: 33833050, PMCID: PMC8039214, DOI: 10.1136/jitc-2020-002230.Peer-Reviewed Original ResearchConceptsPD-L1 expressionMetastatic lesionsLung cancer casesLung cancerCancer casesAdvanced stage non-small cell lung cancerNon-small cell lung cancerNon-squamous histologyCell lung cancerFuture patient managementDefinite diagnostic testSquamous histologyFoundation MedicineLymph nodesRoutine careHistologic subtypeMetastatic sitesPrimary lesionRetrospective studyAdrenal glandPrimary tumorPleural fluidPatient managementTrial designDrug AdministrationPredicted sensitivity to endocrine therapy for stage II-III hormone receptor-positive and HER2-negative (HR+/HER2−) breast cancer before chemo-endocrine therapy
Du L, Yau C, Brown-Swigart L, Gould R, Krings G, Hirst G, Bedrosian I, Layman R, Carter J, Klein M, Venters S, Shad S, van der Noordaa M, Chien A, Haddad T, Isaacs C, Pusztai L, Albain K, Nanda R, Tripathy D, Liu M, Boughey J, Schwab R, Hylton N, DeMichele A, Perlmutter J, Yee D, Berry D, Veer L, Valero V, Esserman L, Symmans W. Predicted sensitivity to endocrine therapy for stage II-III hormone receptor-positive and HER2-negative (HR+/HER2−) breast cancer before chemo-endocrine therapy. Annals Of Oncology 2021, 32: 642-651. PMID: 33617937, DOI: 10.1016/j.annonc.2021.02.011.Peer-Reviewed Original ResearchConceptsResidual cancer burdenI-SPY2 trialIndependent prognostic informationPrognostic informationBreast cancerPrognostic signaturePre-treatment tumor biopsiesHER2-negative breast cancerStage IIDistant relapse-free survivalMultivariate Cox regression modelHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Chemo-endocrine therapyEndocrine-based treatmentAdjuvant endocrine therapyGrowth factor receptor 2Primary outcome measureRelapse-free survivalSimilar prognostic informationCox regression modelMolecular prognostic signaturesNegative breast cancerFactor receptor 2MDACC cohortTargeted RNAseq assay incorporating unique molecular identifiers for improved quantification of gene expression signatures and transcribed mutation fraction in fixed tumor samples
Fu C, Marczyk M, Samuels M, Trevarton AJ, Qu J, Lau R, Du L, Pappas T, Sinn BV, Gould RE, Pusztai L, Hatzis C, Symmans WF. Targeted RNAseq assay incorporating unique molecular identifiers for improved quantification of gene expression signatures and transcribed mutation fraction in fixed tumor samples. BMC Cancer 2021, 21: 114. PMID: 33541297, PMCID: PMC7860187, DOI: 10.1186/s12885-021-07814-8.Peer-Reviewed Original ResearchConceptsPolymerase chain reactionParaffin-embedded tumor tissue samplesConcordance correlation coefficientFresh frozenFFPE samplesPrimary breast cancerMulti-gene signatureTumor tissue samplesActivating point mutationMutant allele fractionReverse transcriptionKey breast cancer genesGene expression signaturesBreast cancer genesPIK3CA mutationsBackgroundOur objectiveBreast cancerWhole transcriptome RNAseqTumor samplesLin's concordance correlation coefficientHormone receptorsFF samplesTissue samplesExpression signaturesChain reaction
2020
PD-L1 Protein Expression on Both Tumor Cells and Macrophages are Associated with Response to Neoadjuvant Durvalumab with Chemotherapy in Triple-negative Breast Cancer
Ahmed FS, Gaule P, McGuire J, Patel K, Blenman K, Pusztai L, Rimm DL. PD-L1 Protein Expression on Both Tumor Cells and Macrophages are Associated with Response to Neoadjuvant Durvalumab with Chemotherapy in Triple-negative Breast Cancer. Clinical Cancer Research 2020, 26: 5456-5461. PMID: 32709714, PMCID: PMC7572612, DOI: 10.1158/1078-0432.ccr-20-1303.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntibodies, MonoclonalAntigens, CDAntigens, Differentiation, MyelomonocyticAntineoplastic Combined Chemotherapy ProtocolsB7-H1 AntigenBiomarkers, TumorCell ProliferationFemaleGene Expression Regulation, NeoplasticHumansLymphocytes, Tumor-InfiltratingMacrophagesMiddle AgedNeoadjuvant TherapyProgrammed Cell Death 1 ReceptorTriple Negative Breast NeoplasmsConceptsTriple-negative breast cancerPD-L1 expressionNeoadjuvant durvalumabTumor cellsImmune cellsBreast cancerPretreatment core-needle biopsiesPhase I/II clinical trialsPD-L1 protein expressionIMpassion 130 trialCore needle biopsyAmount of CD68Neoadjuvant settingMetastatic settingPD-L1Clinical trialsNeedle biopsyInsufficient tissuePatientsCD68Stromal compartmentQuantitative immunofluorescenceChemotherapyFinal analysisProtein expressionBiomarkers in Breast Cancer: An Integrated Analysis of Comprehensive Genomic Profiling and PD‐L1 Immunohistochemistry Biomarkers in 312 Patients with Breast Cancer
Huang RSP, Li X, Haberberger J, Sokol E, Severson E, Duncan DL, Hemmerich A, Edgerly C, Williams E, Elvin J, Vergilio J, Killian J, Lin D, Hiemenz M, Xiao J, McEwan D, Holmes O, Danziger N, Erlich R, Frampton G, Cohen M, McGregor K, Reddy P, Cardeiro D, Anhorn R, Venstrom J, Alexander B, Brown C, Pusztai L, Ross J, Ramkissoon S. Biomarkers in Breast Cancer: An Integrated Analysis of Comprehensive Genomic Profiling and PD‐L1 Immunohistochemistry Biomarkers in 312 Patients with Breast Cancer. The Oncologist 2020, 25: 943-953. PMID: 32869930, PMCID: PMC7648336, DOI: 10.1634/theoncologist.2020-0449.Peer-Reviewed Original ResearchMeSH KeywordsB7-H1 AntigenBiomarkers, TumorGenomicsHumansImmunohistochemistryTriple Negative Breast NeoplasmsConceptsComprehensive genomic profilingPD-L1 immunohistochemistryPotential therapeutic optionBreast cancerPD-L1Therapeutic optionsTriple negative breast cancer cohortDrug AdministrationHormone receptor-positive breast cancerReceptor-positive breast cancerGenomic profilingTriple-negative breast cancerPD-L1 positivityRoutine clinical careMutations/MbBreast cancer cohortBiomarker landscapeTNBC cohortNab-paclitaxelGermline testingConsecutive patientsReceptor negativeHER2-positiveClinical trialsPIK3CA mutations