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 ResearchConceptsPD-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 2Examination of Low ERBB2 Protein Expression in Breast Cancer Tissue
Fernandez AI, Liu M, Bellizzi A, Brock J, Fadare O, Hanley K, Harigopal M, Jorns JM, Kuba MG, Ly A, Podoll M, Rabe K, Sanders MA, Singh K, Snir OL, Soong TR, Wei S, Wen H, Wong S, Yoon E, Pusztai L, Reisenbichler E, Rimm DL. Examination of Low ERBB2 Protein Expression in Breast Cancer Tissue. JAMA Oncology 2022, 8: 1-4. PMID: 35113160, PMCID: PMC8814969, DOI: 10.1001/jamaoncol.2021.7239.Peer-Reviewed Original ResearchConceptsBreast cancer biopsiesT-DXdCancer biopsiesLarge randomized clinical trialsRandomized clinical trialsERBB2 protein expressionCentral pathology laboratoryBreast cancer tissuesAmerican Pathologists surveysStudy of concordanceTrastuzumab deruxtecanERBB2 positivityPatient populationClinical trialsScore 0Breast cancerImmunohistochemistry scoreCancer tissuesIHC assaysPatientsPathology laboratoryProtein expressionBiopsyIHCConcordance
2018
Immunological differences between primary and metastatic breast cancer
Szekely B, Bossuyt V, Li X, Wali VB, Patwardhan GA, Frederick C, Silber A, Park T, Harigopal M, Pelekanou V, Zhang M, Yan Q, Rimm DL, Bianchini G, Hatzis C, Pusztai L. Immunological differences between primary and metastatic breast cancer. Annals Of Oncology 2018, 29: 2232-2239. PMID: 30203045, DOI: 10.1093/annonc/mdy399.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAntineoplastic Agents, ImmunologicalB7-H1 AntigenBiomarkers, TumorBiopsyBreast NeoplasmsDisease ProgressionDrug Resistance, NeoplasmFemaleGene Expression RegulationHumansImmunologic SurveillanceLymphocyte CountLymphocytes, Tumor-InfiltratingMiddle AgedMutation RateTumor EscapeTumor MicroenvironmentYoung AdultConceptsMetastatic breast cancerBreast cancerTherapeutic targetToll-like receptor pathway genesImmuno-oncology therapeutic targetsBreast cancer evolvesImmune proteasome expressionPD-L1 positivityCorresponding primary tumorsPotential therapeutic targetMHC class IImmune-related genesMetastatic cancer samplesLigand/receptor pairLymphocyte countT helperT-regsPD-L1Immune microenvironmentCytotoxic TPrimary tumorMastoid cellsDisease progressionTherapeutic combinationsMacrophage markersDurvalumab (MEDI4736) concurrent with nab-paclitaxel and dose dense doxorubicin cyclophosphamide (ddAC) as neoadjuvant therapy for triple negative breast cancer (TNBC).
Pusztai L, Hofstatter E, Chung G, Horowitz N, Lannin D, Killelea B, Chagpar A, DiGiovanna M, Frederick C, Burello T, Harigopal M. Durvalumab (MEDI4736) concurrent with nab-paclitaxel and dose dense doxorubicin cyclophosphamide (ddAC) as neoadjuvant therapy for triple negative breast cancer (TNBC). Journal Of Clinical Oncology 2018, 36: 586-586. DOI: 10.1200/jco.2018.36.15_suppl.586.Peer-Reviewed Original Research
2017
Impacts of Early Guideline-Directed 21-Gene Recurrence Score Testing on Adjuvant Therapy Decision Making
Dzimitrowicz H, Mougalian S, Storms S, Hurd S, Chagpar AB, Killelea BK, Horowitz NR, Lannin DR, Harigopal M, Hofstatter E, DiGiovanna MP, Adelson KB, Silber A, Abu-Khalaf M, Chung G, Zaheer W, Abdelghany O, Hatzis C, Pusztai L, Sanft TB. Impacts of Early Guideline-Directed 21-Gene Recurrence Score Testing on Adjuvant Therapy Decision Making. JCO Oncology Practice 2017, 13: jop.2017.022731. PMID: 29048991, DOI: 10.1200/jop.2017.022731.Peer-Reviewed Original ResearchConceptsAdjuvant therapy decisionsRecurrence scoreChemotherapy useRS testingMedical oncologistsHistorical controlsChemotherapy decisionsTherapy decisionsEligibility criteriaNational Comprehensive Cancer Network guidelinesProspective quality improvement projectEarly-stage breast cancerAdjuvant chemotherapy recommendationsTime of diagnosisTime of surgeryQuality improvement projectTesting groupChemotherapy initiationChemotherapy recommendationsMedian timeTrial enrollmentNetwork guidelinesSurgical oncologistsClinical trialsBreast cancerEconomic Impact of Routine Cavity Margins Versus Standard Partial Mastectomy in Breast Cancer Patients
Chagpar AB, Horowitz NR, Killelea BK, Tsangaris T, Longley P, Grizzle S, Loftus M, Li F, Butler M, Stavris K, Yao X, Harigopal M, Bossuyt V, Lannin DR, Pusztai L, Davidoff AJ, Gross CP. Economic Impact of Routine Cavity Margins Versus Standard Partial Mastectomy in Breast Cancer Patients. Annals Of Surgery 2017, 265: 39-44. PMID: 27192352, PMCID: PMC5605915, DOI: 10.1097/sla.0000000000001799.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overBreast NeoplasmsCarcinoma, Ductal, BreastCarcinoma, Intraductal, NoninfiltratingCarcinoma, LobularConnecticutFemaleFollow-Up StudiesHealth ExpendituresHospital CostsHumansMargins of ExcisionMastectomy, SegmentalMiddle AgedProspective StudiesReoperationSingle-Blind MethodTreatment OutcomeConceptsCavity shave marginsStandard partial mastectomyPartial mastectomyRe-excision ratesIndex surgeryInitial surgeryBreast cancerHospital perspectiveLower re-excision ratesDirect hospital costsBreast cancer patientsOperating room timeReoperative surgeryBaseline characteristicsOperative timePositive marginsShave marginsCancer patientsHospital costsStage 0Room timeSurgeryPathology costsPatientsMastectomy
2015
A Randomized, Controlled Trial of Cavity Shave Margins in Breast Cancer
Chagpar AB, Killelea BK, Tsangaris TN, Butler M, Stavris K, Li F, Yao X, Bossuyt V, Harigopal M, Lannin DR, Pusztai L, Horowitz NR. A Randomized, Controlled Trial of Cavity Shave Margins in Breast Cancer. New England Journal Of Medicine 2015, 373: 503-510. PMID: 26028131, PMCID: PMC5584380, DOI: 10.1056/nejmoa1504473.Peer-Reviewed Original ResearchConceptsCavity shave marginsPositive marginsPartial mastectomyShave marginsDuctal carcinomaBreast cancerInvasive cancerOutcome measuresStandard partial mastectomySecondary outcome measuresPrimary outcome measureLower ratesRoutine resectionMedian ageClinicopathological characteristicsCavity shavingMargin clearanceSecond surgeryInvasive carcinomaStage 0MastectomyPathological testingPatientsFurther diseaseVolume of tissue
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