2023
KRAS mutation in primary ovarian serous borderline tumors correlates with tumor recurrence
McHenry A, Rottmann D, Buza N, Hui P. KRAS mutation in primary ovarian serous borderline tumors correlates with tumor recurrence. Virchows Archiv 2023, 483: 71-79. PMID: 37219599, DOI: 10.1007/s00428-023-03564-z.Peer-Reviewed Original ResearchMeSH KeywordsCystadenocarcinoma, SerousCystadenoma, SerousFemaleHumansMutationNeoplasm Recurrence, LocalOvarian NeoplasmsProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)ConceptsOvarian serous borderline tumorsSerous borderline tumorsNon-invasive implantsDisease-free survivalKRAS mutationsTumor recurrenceExtraovarian implantsAdverse disease-free survivalWorse disease-free survivalHigher stage diseaseKRAS mutation testingHigher tumor stageWild-type KRASBRAF V600E mutationBRAF mutational analysisBorderline tumorsClinical outcomesHistological subtypesTumor stageBRAF mutationsUseful biomarkerInvasive implantsTumors correlatesV600E mutationMutational status
2022
Characteristics of HER2 Gene Amplification by Fluorescence In Situ Hybridization in Endometrial Serous Carcinoma.
Buza N, Hui P. Characteristics of HER2 Gene Amplification by Fluorescence In Situ Hybridization in Endometrial Serous Carcinoma. Archives Of Pathology & Laboratory Medicine 2022, 146: 0. PMID: 35687792, DOI: 10.5858/arpa.2021-0547-oa.Peer-Reviewed Original ResearchConceptsEndometrial serous carcinomaClinical trial criteriaHER2 gene amplificationTrial criteriaHER2 immunohistochemistrySerous carcinomaAnti-human epidermal growth factor receptor 2 (HER2) therapyClinical Oncology/CollegeHER2 testing algorithmHER2 FISHProspective clinical investigationHER2 IHC 2HER2/CEP17Gene amplificationContext of breastTherapeutic responseIHC 2HER2 amplificationAverage HER2Most tumorsClinical investigationImmunohistochemistryHER2 fluorescenceTumorsMonosomy 17Synergistic activity of neratinib in combination with olaparib in uterine serous carcinoma overexpressing HER2/neu
Yadav G, Roque DM, Bellone S, Manavella DD, Hartwich TMP, Zipponi M, Harold J, Tymon-Rosario J, Mutlu L, Altwerger G, Menderes G, Ratner E, Buza N, Hui P, Huang GS, Andikyan V, Clark M, Azodi M, Schwartz PE, Alexandrov LB, Santin AD. Synergistic activity of neratinib in combination with olaparib in uterine serous carcinoma overexpressing HER2/neu. Gynecologic Oncology 2022, 166: 351-357. PMID: 35641325, DOI: 10.1016/j.ygyno.2022.05.021.Peer-Reviewed Original ResearchConceptsUterine serous carcinomaHER2/neu expressionHER2/neuCombination of olaparibUSC xenograftsUSC cell linesNeu expressionSerous carcinomaLow HER2/neu expressionHER2/neu 3Cell linesHER2/neu gene amplificationNovel therapeutic optionsPolymerase inhibitor olaparibNeu gene amplificationDurable growth inhibitionNeratinib treatmentUSC cellsUSC patientsEndometrial cancerAggressive variantTherapeutic optionsPoor prognosisHER2/Single agent
2021
Minimal uterine serous carcinoma and endometrial polyp: a close clinicopathological relationship
Assem H, Rottmann D, Finkelstein A, Wang M, Ratner E, Santin AD, Buza N, Hui P. Minimal uterine serous carcinoma and endometrial polyp: a close clinicopathological relationship. Human Pathology 2021, 118: 1-8. PMID: 34508766, DOI: 10.1016/j.humpath.2021.09.001.Peer-Reviewed Original ResearchMeSH KeywordsAgedCystadenocarcinoma, SerousEndometrial NeoplasmsFemaleHumansMiddle AgedPolypsUterine NeoplasmsConceptsMinimal uterine serous carcinomaEndometrial polypsUterine serous carcinomaSerous carcinomaHigh stage patientsLow stage patientsPelvic washing cytologyAdvanced stage diseaseEndometrial serous carcinomaHigher stage diseaseLower tumor stageClinical outcome assessmentClose topographic relationshipBackground endometriumExtrauterine diseaseExtrauterine spreadStage diseaseExcellent prognosisLymphovascular invasionClinicopathological relationshipWashing cytologyTumor stageHigh riskPatientsLarge seriesDHES0815A, a novel antibody-drug conjugate targeting HER2/neu, is highly active against uterine serous carcinomas in vitro and in vivo
Tymon-Rosario J, Bonazzoli E, Bellone S, Manzano A, Pelligra S, Guglielmi A, Gnutti B, Nagarkatti N, Zeybek B, Manara P, Zammataro L, Harold J, Mauricio D, Buza N, Hui P, Altwerger G, Menderes G, Ratner E, Clark M, Andikyan V, Huang GS, Silasi DA, Azodi M, Schwartz PE, Santin AD. DHES0815A, a novel antibody-drug conjugate targeting HER2/neu, is highly active against uterine serous carcinomas in vitro and in vivo. Gynecologic Oncology 2021, 163: 334-341. PMID: 34452746, PMCID: PMC8722447, DOI: 10.1016/j.ygyno.2021.08.014.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntibodies, Monoclonal, HumanizedBenzodiazepinesBystander EffectCell Line, TumorCystadenocarcinoma, SerousDrug Resistance, NeoplasmFemaleHumansImmunoconjugatesMiddle AgedPrimary Cell CultureReceptor, ErbB-2TrastuzumabUterine NeoplasmsXenograft Model Antitumor AssaysConceptsHER2/neuPrimary USC cell linesUSC cell linesUterine serous carcinomaSerous carcinomaHER2/Cell linesBystander killingHER2/neu protein expressionHER2/neu overexpressionProtein expressionNovel treatment optionsAggressive histologic variantNeu protein expressionHER2 protein expressionC-erbB2 gene amplificationSignificant bystander killingUSC xenograftsEndometrial cancerNegative tumorsPoor prognosisPositive tumorsTreatment optionsPreclinical activityHistologic variantsHER2 Expression in Endometrial Cancers Diagnosed as Clear Cell Carcinoma
Cagaanan A, Stelter B, Vu N, Rhode EN, Stewart T, Hui P, Buza N, Al-Niaimi A, Flynn C, Weisman PS, McGregor SM. HER2 Expression in Endometrial Cancers Diagnosed as Clear Cell Carcinoma. International Journal Of Gynecological Pathology 2021, 41: 132-141. PMID: 33782344, DOI: 10.1097/pgp.0000000000000783.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinoma, Clear CellBiomarkers, TumorCarcinoma, EndometrioidCystadenocarcinoma, SerousEndometrial NeoplasmsFemaleHumansConceptsClear cell carcinomaEndometrial cancerSerous carcinomaCell carcinomaDiagnosis of CCCTraditional histologic classificationFuture clinical trialsAberrant p53 stainingBattery of immunostainsMajor diagnostic considerationCCC diagnosisMost HER2ER expressionEndometrioid carcinomaGynecologic pathologistsBeneficial therapyHER2 expressionHER2 statusP53 stainingClinical trialsDiagnostic difficultiesHistologic classificationDiagnostic considerationsAberrant p53Tissue microarrayReproducibility of scoring criteria for HER2 immunohistochemistry in endometrial serous carcinoma: a multi-institutional interobserver agreement study
Buza N, Euscher ED, Matias-Guiu X, McHenry A, Oliva E, Ordulu Z, Parra-Herran C, Rottmann D, Turner BM, Wong S, Hui P. Reproducibility of scoring criteria for HER2 immunohistochemistry in endometrial serous carcinoma: a multi-institutional interobserver agreement study. Modern Pathology 2021, 34: 1194-1202. PMID: 33536574, DOI: 10.1038/s41379-021-00746-5.Peer-Reviewed Original ResearchConceptsEndometrial serous carcinomaHER2 scoring criteriaSerous carcinomaHER2 scoreGynecologic pathologistsAnti-human epidermal growth factor receptor 2 (HER2) therapyRecent successful clinical trialsInterobserver disagreementCombination of HER2Successful clinical trialsHER2 gene amplificationInterobserver agreement studyScoring criteriaInterobserver agreement ratesOverall survivalEndometrial cancerPathologic studiesHER2 statusClinical trialsGastric carcinomaHER2 testingHER2 immunohistochemistryAdvanced stageCarcinomaScoring system
2020
HER2 Testing and Reporting in Endometrial Serous Carcinoma: Practical Recommendations for HER2 Immunohistochemistry and Fluorescent In Situ Hybridization: Proceedings of the ISGyP Companion Society Session at the 2020 USCAP Annual Meeting
Buza N. HER2 Testing and Reporting in Endometrial Serous Carcinoma: Practical Recommendations for HER2 Immunohistochemistry and Fluorescent In Situ Hybridization: Proceedings of the ISGyP Companion Society Session at the 2020 USCAP Annual Meeting. International Journal Of Gynecological Pathology 2020, 40: 17-23. PMID: 33290351, DOI: 10.1097/pgp.0000000000000711.Peer-Reviewed Original ResearchConceptsEndometrial serous carcinomaSerous carcinomaHER2 testingClinical trialsISGyP Companion Society SessionHER2 testing algorithmStandard chemotherapy regimenAnti-HER2 therapyRecent clinical trialsNew patient cohortCurrent clinical practiceHER2 scoring criteriaHER2 protein expressionUSCAP Annual MeetingChemotherapy regimenOverall survivalAppropriate triagingClinical benefitPatient cohortPatient enrollmentTrial criteriaTherapeutic responseTreatment approachesClinical practiceHER2 immunohistochemistryHuman epidermal growth factor 2 (HER2) in early stage uterine serous carcinoma: A multi-institutional cohort study
Erickson BK, Najjar O, Damast S, Blakaj A, Tymon-Rosario J, Shahi M, Santin A, Klein M, Dolan M, Cimino-Mathews A, Buza N, Ferriss JS, Stone RL, Khalifa M, Fader AN. Human epidermal growth factor 2 (HER2) in early stage uterine serous carcinoma: A multi-institutional cohort study. Gynecologic Oncology 2020, 159: 17-22. PMID: 32709539, PMCID: PMC7541557, DOI: 10.1016/j.ygyno.2020.07.016.Peer-Reviewed Original ResearchMeSH KeywordsAgedAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorChemoradiotherapy, AdjuvantCystadenocarcinoma, SerousFemaleFollow-Up StudiesHumansHysterectomyImmunohistochemistryMiddle AgedNeoplasm InvasivenessNeoplasm Recurrence, LocalNeoplasm StagingPrognosisProgression-Free SurvivalReceptor, ErbB-2Retrospective StudiesRisk AssessmentUnited StatesUterine NeoplasmsUterusConceptsHuman epidermal growth factor 2Uterine serous carcinomaHER2-positive tumorsEarly-stage diseaseOverall survivalSerous carcinomaCohort studyHER2 positivityPositive tumorsEarly stage uterine serous carcinomaLymph-vascular space invasionRecurrent uterine serous carcinomaMulti-institutional cohort studyHuman epidermal growth factor receptor 2Multi-center cohort studyEpidermal growth factor receptor 2Epidermal growth factor 2HER2-positive cohortGrowth factor receptor 2HER2-negative tumorsEquivocal IHC resultsFactor receptor 2Inferior PFSAdjuvant therapyGrowth factor 2HER2 Testing in Endometrial Serous Carcinoma: Time for Standardized Pathology Practice to Meet the Clinical Demand
Buza N. HER2 Testing in Endometrial Serous Carcinoma: Time for Standardized Pathology Practice to Meet the Clinical Demand. Archives Of Pathology & Laboratory Medicine 2020, 145: 687-691. PMID: 32649220, DOI: 10.5858/arpa.2020-0207-ra.Peer-Reviewed Original ResearchConceptsEndometrial serous carcinomaSerous carcinomaHER2 protein expressionHER2 testingNational Comprehensive Cancer Network clinical guidelinesProlonged progression-free survivalHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Gene amplificationStandard chemotherapy regimenProgression-free survivalProtein expressionAppropriate patient selectionGrowth factor receptor 2Recent clinical trialsSuccessful clinical outcomeHER2 protein overexpressionFactor receptor 2HER2 scoring criteriaHER2 therapyChemotherapy regimenEndometrial cancerClinical outcomesPatient selectionAggressive subtype
2014
HER2/neu in Endometrial Cancer: A Promising Therapeutic Target With Diagnostic Challenges
Buza N, Roque DM, Santin AD. HER2/neu in Endometrial Cancer: A Promising Therapeutic Target With Diagnostic Challenges. Archives Of Pathology & Laboratory Medicine 2014, 138: 343-50. PMID: 24576030, DOI: 10.5858/arpa.2012-0416-ra.Peer-Reviewed Original ResearchMeSH KeywordsAntibodies, MonoclonalCystadenocarcinoma, SerousEndometrial NeoplasmsFemaleGene Expression Regulation, NeoplasticHumansReceptor, ErbB-2ConceptsEndometrial carcinomaHER2/neuPromising therapeutic targetHER2 testingClinical responseTherapeutic targetHumanized monoclonal immunoglobulin G1 antibodyMonoclonal immunoglobulin G1 antibodyUterine serous carcinomaImmunoglobulin G1 antibodyNovel therapeutic strategiesEndometrial cancerSerous adenocarcinomaSerous carcinomaCase reportDiagnostic challengeHER2 overexpressionPathogenetic featuresClinical studiesG1 antibodyTherapeutic strategiesCarcinomaTherapeutic efficacyStandardized criteriaTherapy