2020
Acquired Resistance to HER2-Targeted Therapies Creates Vulnerability to ATP Synthase Inhibition
Gale M, Li Y, Cao J, Liu ZZ, Holmbeck MA, Zhang M, Lang SM, Wu L, Do Carmo M, Gupta S, Aoshima K, DiGiovanna MP, Stern DF, Rimm DL, Shadel GS, Chen X, Yan Q. Acquired Resistance to HER2-Targeted Therapies Creates Vulnerability to ATP Synthase Inhibition. Cancer Research 2020, 80: 524-535. PMID: 31690671, PMCID: PMC7002225, DOI: 10.1158/0008-5472.can-18-3985.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntineoplastic Combined Chemotherapy ProtocolsApoptosisBreast NeoplasmsCell ProliferationDrug Resistance, NeoplasmEnzyme InhibitorsFemaleHumansMiceMice, Inbred NODMice, SCIDMitochondrial Proton-Translocating ATPasesOligomycinsReceptor, ErbB-2TrastuzumabTumor Cells, CulturedXenograft Model Antitumor AssaysConceptsResistant cellsHER2-Targeted TherapyTrastuzumab-resistant tumorsNew therapeutic strategiesNovel potential targetDrug-free mediumAntibody therapySynthase inhibitionLow doseTherapeutic strategiesTrastuzumabBreast tumorsHER2TherapyAcquired ResistanceTumorsPotential targetMitochondrial respirationCellsSelective dependencyInhibitionMinimal changesNovel vulnerabilitiesATP synthase inhibitionOligomycin A
2016
PMCA2 regulates HER2 protein kinase localization and signaling and promotes HER2-mediated breast cancer
Jeong J, VanHouten JN, Dann P, Kim W, Sullivan C, Yu H, Liotta L, Espina V, Stern DF, Friedman PA, Wysolmerski JJ. PMCA2 regulates HER2 protein kinase localization and signaling and promotes HER2-mediated breast cancer. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: e282-e290. PMID: 26729871, PMCID: PMC4725473, DOI: 10.1073/pnas.1516138113.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBreast NeoplasmsCalciumCarcinogenesisCell Line, TumorCell MembraneCell ProliferationCell SurvivalEndocytosisFemaleFluorescent Antibody TechniqueForkhead Box Protein O1Forkhead Transcription FactorsGene Knockdown TechniquesHSP90 Heat-Shock ProteinsHumansImmunoblottingIntracellular SpaceMammary Neoplasms, AnimalMicePlasma Membrane Calcium-Transporting ATPasesProtein BindingProtein TransportReceptor, ErbB-2Signal TransductionSurvival AnalysisConceptsBreast cancerHigh tumor levelsDegradation of HER2Increases Intracellular CalciumMouse mammary tumor virusBreast cancer cellsMammary tumor virusPMCA2 levelsNeu miceTumor levelsFormation of tumorsHER2 levelsIntracellular calciumTherapeutic targetBreast tumorsHER2Milk calciumExpression correlatesCancerHSP 90Mammary glandCancer cellsTumor virusTumorsCalcium
2013
Comparison of HER2 and Phospho-HER2 Expression between Biopsy and Resected Breast Cancer Specimens Using a Quantitative Assessment Method
Bai Y, Cheng H, Bordeaux J, Neumeister V, Kumar S, Rimm DL, Stern DF. Comparison of HER2 and Phospho-HER2 Expression between Biopsy and Resected Breast Cancer Specimens Using a Quantitative Assessment Method. PLOS ONE 2013, 8: e79901. PMID: 24278211, PMCID: PMC3836903, DOI: 10.1371/journal.pone.0079901.Peer-Reviewed Original ResearchConceptsCore needle biopsyBreast cancer casesResection specimensCancer casesHER2/neu overexpressionPrediction of responsePre-analytic variablesNeu overexpressionTumor resectionNeedle biopsyBreast cancerHER2 immunoreactivityRetrospective collectionHER2Drug trastuzumabClinical implicationsHER2 proteinQuantitative immunofluorescenceResectionPHER2Good responseFurther studiesBiopsyTrastuzumabImmunoreactivity
2005
Phosphorylated/Activated HER2 as a Marker of Clinical Resistance to Single Agent Taxane Chemotherapy for Metastatic Breast Cancer
Modi S, DiGiovanna MP, Lu Z, Moskowitz C, Panageas KS, Van Poznak C, Hudis CA, Norton L, Tan L, Stern DF, Carter D, Seidman AD. Phosphorylated/Activated HER2 as a Marker of Clinical Resistance to Single Agent Taxane Chemotherapy for Metastatic Breast Cancer. Cancer Investigation 2005, 23: 483-487. PMID: 16203655, DOI: 10.1080/07357900500201301.Peer-Reviewed Original ResearchConceptsMetastatic breast cancerSingle-agent taxane therapyTaxane therapyP-HER2Clinical benefitBreast cancerClinical resistanceSingle-agent taxane chemotherapyUnique predictive informationChi-squared analysisTaxane chemotherapyClinical outcomesClinical progressionTaxane monotherapyHER2 statusClinical trialsPhosphorylated HER2Tumor specimensFunctional assessmentHER2TherapyMonoclonal antibodiesImmunohistochemistrySquared analysisProgression