2024
Prediction of Benefit From Adjuvant Pertuzumab by 80-Gene Signature in the APHINITY (BIG 4-11) Trial
Krop I, Mittempergher L, Paulson J, Andre F, Bonnefoi H, Loi S, Loibl S, Gelber R, Caballero C, Bhaskaran R, Dreezen C, Menicucci A, Bernards R, van ’t Veer L, Piccart M. Prediction of Benefit From Adjuvant Pertuzumab by 80-Gene Signature in the APHINITY (BIG 4-11) Trial. JCO Precision Oncology 2024, 8: e2200667. PMID: 38237097, DOI: 10.1200/po.22.00667.Peer-Reviewed Original ResearchConceptsInvasive disease-free survivalHER2 typeLuminal typeInvasive disease-free survival eventsHazard ratioEarly-stage breast cancerLuminal-type tumorsMolecular subtype signaturesAnti-HER2 therapyHER2-positive tumorsDisease-free survivalStandard adjuvant chemotherapyBasal-type tumorsBasal typePredictive of benefitAdjuvant pertuzumabAPHINITY trialHER2-typeHER2-positiveInferior prognosisAdjuvant chemotherapyTumor subtypesNo significant differenceAnti-HER2Breast tumors
2022
Multiomics in primary and metastatic breast tumors from the AURORA US network finds microenvironment and epigenetic drivers of metastasis
Garcia-Recio S, Hinoue T, Wheeler G, Kelly B, Garrido-Castro A, Pascual T, De Cubas A, Xia Y, Felsheim B, McClure M, Rajkovic A, Karaesmen E, Smith M, Fan C, Ericsson P, Sanders M, Creighton C, Bowen J, Leraas K, Burns R, Coppens S, Wheless A, Rezk S, Garrett A, Parker J, Foy K, Shen H, Park B, Krop I, Anders C, Gastier-Foster J, Rimawi M, Nanda R, Lin N, Isaacs C, Marcom P, Storniolo A, Couch F, Chandran U, Davis M, Silverstein J, Ropelewski A, Liu M, Hilsenbeck S, Norton L, Richardson A, Symmans W, Wolff A, Davidson N, Carey L, Lee A, Balko J, Hoadley K, Laird P, Mardis E, King T, Perou C. Multiomics in primary and metastatic breast tumors from the AURORA US network finds microenvironment and epigenetic drivers of metastasis. Nature Cancer 2022, 4: 128-147. PMID: 36585450, PMCID: PMC9886551, DOI: 10.1038/s43018-022-00491-x.Peer-Reviewed Original ResearchConceptsMetastatic breast cancerBreast cancerHER2-targeted therapiesImmune cell infiltratesMetastatic breast tumorsLiver metastasesCell infiltrateLow-pass whole-genome sequencingSubtype changesT cellsEstrogen receptorTumor subtypesEndothelial contentBreast tumorsMetastasisCell-cell adhesion genesReduced expressionGlobal DNA methylationDNA methylation mechanismsFocal deletionsMolecular featuresWhole-genome sequencingCancerSubtypesRNA sequencing
2019
Current Landscape of Immunotherapy in Breast Cancer
Adams S, Gatti-Mays ME, Kalinsky K, Korde LA, Sharon E, Amiri-Kordestani L, Bear H, McArthur HL, Frank E, Perlmutter J, Page DB, Vincent B, Hayes JF, Gulley JL, Litton JK, Hortobagyi GN, Chia S, Krop I, White J, Sparano J, Disis ML, Mittendorf EA. Current Landscape of Immunotherapy in Breast Cancer. JAMA Oncology 2019, 5: 1205-1214. PMID: 30973611, PMCID: PMC8452050, DOI: 10.1001/jamaoncol.2018.7147.Peer-Reviewed Original ResearchImmune checkpoint blockadeBreast cancerForm of immunotherapyLocal ablative therapyRobust predictive biomarkersCancer immunotherapy trialsAppropriate end pointsCombination therapy strategiesAdditional chemotherapeutic agentsCheckpoint blockadeMetastatic diseaseObjective responseImmunotherapy trialsClinical efficacyAblative therapyPredictive biomarkersClinical trialsImmune responseThoughtful study designImmunotherapyBreast tumorsChemotherapeutic agentsNarrative reviewCancerEnd pointThe Immune Microenvironment in Hormone Receptor–Positive Breast Cancer Before and After Preoperative Chemotherapy
Waks AG, Stover DG, Guerriero JL, Dillon D, Barry WT, Gjini E, Hartl C, Lo W, Savoie J, Brock J, Wesolowski R, Li Z, Damicis A, Philips AV, Wu Y, Yang F, Sullivan A, Danaher P, Brauer HA, Osmani W, Lipschitz M, Hoadley KA, Goldberg M, Perou CM, Rodig S, Winer EP, Krop IE, Mittendorf EA, Tolaney SM. The Immune Microenvironment in Hormone Receptor–Positive Breast Cancer Before and After Preoperative Chemotherapy. Clinical Cancer Research 2019, 25: 4644-4655. PMID: 31061067, PMCID: PMC6677598, DOI: 10.1158/1078-0432.ccr-19-0173.Peer-Reviewed Original ResearchConceptsStromal tumor-infiltrating lymphocytesImmune microenvironmentNeoadjuvant chemotherapyPD-L1Breast cancerHormone receptor-positive breast cancerBreast tumorsHormone receptor-positive/HER2-negative breast cancerHER2-negative breast cancerDistant metastasis-free survivalReceptor-positive breast cancerImmunotherapy-based approachesPAM50 intrinsic subtypesCheckpoint inhibitor therapyPD-L1 stainingTumor-infiltrating lymphocytesMetastasis-free survivalMacrophage-targeted therapiesRole of macrophagesPreoperative chemotherapyStandard chemotherapyInhibitor therapyResidual diseaseMyeloid signaturePoor response
2015
PI3K-p110α mediates resistance to HER2-targeted therapy in HER2+, PTEN-deficient breast cancers
Wang Q, Liu P, Spangle JM, Von T, Roberts TM, Lin NU, Krop IE, Winer EP, Zhao JJ. PI3K-p110α mediates resistance to HER2-targeted therapy in HER2+, PTEN-deficient breast cancers. Oncogene 2015, 35: 3607-3612. PMID: 26500061, PMCID: PMC4846581, DOI: 10.1038/onc.2015.406.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBreast NeoplasmsCell Line, TumorCell SurvivalClass I Phosphatidylinositol 3-KinasesDrug Resistance, NeoplasmFemaleHumansLapatinibMammary Neoplasms, ExperimentalMice, KnockoutMolecular Targeted TherapyPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsProtein Kinase InhibitorsProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseQuinazolinesReceptor, ErbB-2Signal TransductionThiazolesTumor BurdenXenograft Model Antitumor AssaysConceptsBreast tumorsP110β inhibitorsHuman epidermal growth factor receptor 2 (HER2) amplificationP110α inhibitionPTEN lossInhibition of HER2Treatment of HER2Human cancersPI3K pathway activationPTEN-deficient breast cancersGenetic mouse modelsPI3K/Akt signalingPTEN-deficient tumorsPI3K/AktDual HER2Therapeutic regimenHER2 inhibitionPIK3CA mutationsTumor regressionBreast cancerMouse modelXenograft modelHER2Null tumorsHER2 activation
2011
P1-06-23: Changes in Gene Expression after One Dose of Trastuzumab (T) in HER2+ Breast Cancer Cell Lines Predict Novel Pathways of Response in HER2 Positive Early Stage Breast Cancer.
Sprecher E, Lezon-Geyda K, Sarkar S, Bossuyt V, Narayaan M, Kumar A, Krop I, Winer E, Tuck D, Kleinstein S, Harris L. P1-06-23: Changes in Gene Expression after One Dose of Trastuzumab (T) in HER2+ Breast Cancer Cell Lines Predict Novel Pathways of Response in HER2 Positive Early Stage Breast Cancer. Cancer Research 2011, 71: p1-06-23-p1-06-23. DOI: 10.1158/0008-5472.sabcs11-p1-06-23.Peer-Reviewed Original ResearchPathologic complete responseBreast cancer patientsBreast cancer cell linesSensitive cell linesCancer cell linesCancer patientsSingle doseBreast cancerHER2-positive early-stage breast cancerPositive early-stage breast cancerCell linesBreast tumorsEarly breast cancer patientsEarly-stage breast cancerDose of trastuzumabEarly-stage HER2Early breast cancerResistant breast tumorsStage breast cancerTumor core biopsiesPathway analysisMechanism of actionResistant HER2RECIST criteriaClinical responseAssociation between response to brief trastuzumab exposure in cell lines and early stage HER2+ breast tumors
Sprecher E, Sarkar S, Kleinstein S, Narayan M, Winer E, Tuck D, Lezon-Geyda K, Krop I, Harris L. Association between response to brief trastuzumab exposure in cell lines and early stage HER2+ breast tumors. 2011, 446-450. DOI: 10.1145/2147805.2147867.Peer-Reviewed Original ResearchEarly-stage HER2Breast cancer patientsBreast tumorsTrastuzumab treatmentCancer patientsCell linesHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Breast cancer settingGrowth factor receptor 2Resistant breast tumorsTrastuzumab-resistant HER2Breast cancer cell linesClinical treatment decisionsFactor receptor 2Trastuzumab exposureCancer cell linesGene expression signaturesResponsive patientsTrastuzumab resistanceSingle doseTargeted therapyBreast cancerCancer settingTreatment decisions
2003
Lack of HIN-1 methylation in BRCA1-linked and "BRCA1-like" breast tumors.
Krop I, Maguire P, Lahti-Domenici J, Lodeiro G, Richardson A, Johannsdottir HK, Nevanlinna H, Borg A, Gelman R, Barkardottir RB, Lindblom A, Polyak K. Lack of HIN-1 methylation in BRCA1-linked and "BRCA1-like" breast tumors. Cancer Research 2003, 63: 2024-7. PMID: 12727813.Peer-Reviewed Original ResearchConceptsHIN-1 methylationBreast tumorsHIN-1BRCA1 tumorsSporadic breast tumorsFamilial breast cancer patientsBreast cancer patientsSpecific breast cancer subtypesBreast cancer riskBreast cancer subtypesSporadic breast carcinomasGerm-line mutationsPromoter methylation statusCancer patientsHER2 statusBreast carcinomaHistopathological phenotypeEstrogen receptorCancer riskCandidate tumor suppressor geneCancer subtypesSporadic casesTumorsCancer typesTumor suppressor gene