2022
Quantitative measurement of HER2 expression to subclassify ERBB2 unamplified breast cancer.
Moutafi M, Robbins C, Yaghoobi V, Fernandez A, Martinez-Morilla S, Xirou V, Bai Y, Song Y, Gaule P, Krueger J, Bloom K, Hill S, Liebler D, Fulton R, Rimm D. Quantitative measurement of HER2 expression to subclassify ERBB2 unamplified breast cancer. Laboratory Investigation 2022, 102: 1101-1108. PMID: 36775350, DOI: 10.1038/s41374-022-00804-9.Peer-Reviewed Original ResearchConceptsHER2 expressionBreast cancerAttomol/HER2 proteinBreast cancer patientsBreast cancer casesOptimal patient careLevels of HER2Trastuzumab deruxtecanT-DXdCancer patientsLow HER2Cancer casesConventional assaysHER2Patient careAntibody concentrationsQuantitative immunofluorescenceAntibody drugsCancerCell linesAssaysExpressionHER2 detectionLower range
2018
Ki67 reproducibility using digital image analysis: an inter-platform and inter-operator study
Acs B, Pelekanou V, Bai Y, Martinez-Morilla S, Toki M, Leung SCY, Nielsen TO, Rimm DL. Ki67 reproducibility using digital image analysis: an inter-platform and inter-operator study. Laboratory Investigation 2018, 99: 107-117. PMID: 30181553, DOI: 10.1038/s41374-018-0123-7.Peer-Reviewed Original ResearchAn international multicenter study to evaluate reproducibility of automated scoring for assessment of Ki67 in breast cancer
Rimm DL, Leung SCY, McShane LM, Bai Y, Bane AL, Bartlett JMS, Bayani J, Chang MC, Dean M, Denkert C, Enwere EK, Galderisi C, Gholap A, Hugh JC, Jadhav A, Kornaga EN, Laurinavicius A, Levenson R, Lima J, Miller K, Pantanowitz L, Piper T, Ruan J, Srinivasan M, Virk S, Wu Y, Yang H, Hayes DF, Nielsen TO, Dowsett M. An international multicenter study to evaluate reproducibility of automated scoring for assessment of Ki67 in breast cancer. Modern Pathology 2018, 32: 59-69. PMID: 30143750, DOI: 10.1038/s41379-018-0109-4.Peer-Reviewed Original ResearchConceptsIntraclass correlation coefficientBreast cancerBreast Cancer Working GroupAssessment of Ki67Pre-specified analysisCancer Working GroupInternational multicenter studyMulticenter studySubsequent clinical validationInternational Ki67Biopsy sectionsClinical valueBiomarker Ki67Breast tumorsKi67 immunohistochemistryEvaluation of reproducibilityKi67Clinical validationTumor cellsObserved intraclass correlation coefficientScoring methodCorrelation coefficientKi67 scoringMaximum scoreCancer
2017
Elevated T cell activation score is associated with improved survival of breast cancer
Lu L, Bai Y, Wang Z. Elevated T cell activation score is associated with improved survival of breast cancer. Breast Cancer Research And Treatment 2017, 164: 689-696. PMID: 28488141, DOI: 10.1007/s10549-017-4281-x.Peer-Reviewed Original ResearchConceptsT cell activation scoreBreast cancer patientsOverall survivalPatients' overall survivalCancer patientsImproved survivalPD-1Activation scoresBreast cancerCell death-1 receptorLow PD-1 expressionMultivariate Cox regression analysisT-lymphocyte antigen-4Kaplan-Meier survival curvesT cell activation statusDeath-1 receptorPD-1 expressionEffector T cellsImmune checkpoint blockadeCox regression analysisPoor overall survivalCox regression modelT cell functionActivation groupCell activation status
2014
Quantitative measurements of HER2 and phospho-HER2 expression: correlation with pathologic response to neoadjuvant chemotherapy and trastuzumab
Cheng H, Bai Y, Sikov W, Sinclair N, Bossuyt V, Abu-Khalaf MM, Harris LN, Rimm DL. Quantitative measurements of HER2 and phospho-HER2 expression: correlation with pathologic response to neoadjuvant chemotherapy and trastuzumab. BMC Cancer 2014, 14: 326. PMID: 24885187, PMCID: PMC4037428, DOI: 10.1186/1471-2407-14-326.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAlbuminsAntibodies, Monoclonal, HumanizedAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsCarboplatinChemotherapy, AdjuvantConnecticutFemaleFluorescent Antibody TechniqueHumansNeoadjuvant TherapyPaclitaxelPhosphorylationProteomicsReceptor, ErbB-2Rhode IslandTime FactorsTrastuzumabTreatment OutcomeConceptsLikelihood of responsePhospho-HER2Nab-paclitaxelPathologic responseHER2 levelsAdvanced HER2-positive breast cancerHER2-positive breast cancerCarboplatin combination therapyPreoperative clinical trialPre-surgical settingSingle-agent trastuzumabPathologic complete responseInitiation of treatmentWeeks of treatmentBreast cancer patientsTumor core biopsiesCore biopsy samplesMonoclonal antibody trastuzumabEvaluable patientsNeoadjuvant regimenNeoadjuvant chemotherapyNeoadjuvant therapyNeoadjuvant treatmentComplete responsePreoperative setting
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
2011
Optimal tumor sampling for immunostaining of biomarkers in breast carcinoma
Tolles J, Bai Y, Baquero M, Harris LN, Rimm DL, Molinaro AM. Optimal tumor sampling for immunostaining of biomarkers in breast carcinoma. Breast Cancer Research 2011, 13: r51. PMID: 21592345, PMCID: PMC3218938, DOI: 10.1186/bcr2882.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorBreast NeoplasmsData Interpretation, StatisticalFemaleHumansSample SizeStaining and LabelingConceptsWhole tissue sectionsBreast carcinomaEstrogen receptorBiomarker expressionTumor biomarker expressionAmount of tumorTissue sectionsEvidence-based standardsHeterogeneous markersTherapeutic responseHER-2Optimal tumorBreast biopsyBreast tumorsClinical implicationsMAP-tauQuantitative immunofluorescenceClinical useLevel of expressionCarcinomaImmunostaining assaysBiomarkersTumorsTissue samplesBiomarker heterogeneityQuantitative assessment shows loss of antigenic epitopes as a function of pre-analytic variables
Bai Y, Tolles J, Cheng H, Siddiqui S, Gopinath A, Pectasides E, Camp RL, Rimm DL, Molinaro AM. Quantitative assessment shows loss of antigenic epitopes as a function of pre-analytic variables. Laboratory Investigation 2011, 91: 1253-1261. PMID: 21519325, PMCID: PMC3145004, DOI: 10.1038/labinvest.2011.75.Peer-Reviewed Original ResearchConceptsCore needle biopsyCold ischemic timePre-analytic variablesNeedle biopsyEstrogen receptorIschemic timeTumor resectionTumor resection specimensAntigenic lossResection specimensTissue biomarkersTotal AktBiopsyPhospho-AktQuantitative immunofluorescencePhospho-ERKPhospho-S6K1Antigenic epitopesTotal ERKResectionTotal proteinCytokeratinImmunological methodsAntigenicitySignificant changes