2022
The role of HER2 as a therapeutic biomarker in gynaecological malignancy: potential for use beyond uterine serous carcinoma
Talia K, Banet N, Buza N. The role of HER2 as a therapeutic biomarker in gynaecological malignancy: potential for use beyond uterine serous carcinoma. Pathology 2022, 55: 8-18. PMID: 36503635, DOI: 10.1016/j.pathol.2022.11.004.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinoma, MucinousBiomarkers, TumorEndometrial NeoplasmsFemaleHumansMolecular Targeted TherapyReceptor, ErbB-2ConceptsHuman epidermal growth factor receptor 2Uterine serous carcinomaRole of HER2Serous carcinomaClinical trialsHER2 overexpressionPrognostic biomarkerTherapeutic targetHigh-grade endometrioid carcinomaEpidermal growth factor receptor 2Vulvar Paget's diseaseGrowth factor receptor 2Time of diagnosisFuture clinical trialsGynaecological cancer careClinical trial dataHER2 protein overexpressionFactor receptor 2P53 mutant tumorsRecurrent diseaseSurvival benefitGynaecological malignanciesPaget's diseaseClinical benefitEndometrial carcinomaCorrelative Assessment of p53 Immunostaining Patterns and TP53 Mutation Status by Next-Generation Sequencing in High-Grade Endometrial Carcinomas
Matsumoto N, Manrai P, Rottmann D, Wu X, Assem H, Hui P, Buza N. Correlative Assessment of p53 Immunostaining Patterns and TP53 Mutation Status by Next-Generation Sequencing in High-Grade Endometrial Carcinomas. International Journal Of Gynecological Pathology 2022, 42: 567-575. PMID: 36730675, DOI: 10.1097/pgp.0000000000000930.Peer-Reviewed Original ResearchMeSH KeywordsCarcinoma, EndometrioidEndometrial NeoplasmsFemaleHigh-Throughput Nucleotide SequencingHumansMutationTumor Suppressor Protein p53ConceptsHigh-grade endometrial carcinomasEndometrial carcinomaEndometrioid endometrial carcinomaTP53 mutation statusP53 immunohistochemistrySerous componentIHC staining patternNext-generation sequencing resultsNuclear overexpressionGrade 3 endometrioid endometrial carcinomaMutation statusTP53 mutationsCytoplasmic stainingStaining patternSerous endometrial carcinomaAberrant p53 expressionMixed endometrial carcinomasClinical prognosisSurrogate markerAberrant p53 proteinTherapeutic decisionsIHC patternsTP53 alterationsTumor histotypesP53 expressionData Set for the Reporting of Endometrial Cancer: Recommendations From the International Collaboration on Cancer Reporting (ICCR)
Matias-Guiu X, Selinger CI, Anderson L, Buza N, Ellenson LH, Fadare O, Ganesan R, Ip PPC, Palacios J, Parra-Herran C, Raspollini MR, Soslow RA, Werner HMJ, Lax SF, McCluggage WG. Data Set for the Reporting of Endometrial Cancer: Recommendations From the International Collaboration on Cancer Reporting (ICCR). International Journal Of Gynecological Pathology 2022, 41: s90-s118. PMID: 36305536, DOI: 10.1097/pgp.0000000000000901.Peer-Reviewed Original ResearchConceptsEndometrial cancerCancer reportingWorld Health Organization classificationFemale genital tumorsCancer patient careCommon cancerOrganization classificationResection specimensClinical managementGenital tumorsPatient careCancerMolecular classificationCancer diagnosisExpert cliniciansExpert pathologistsNoncore elementsMajor advancesDetailed recommendationsReportingCancer dataInternational collaborationPrognosisNeoplasmsTumorsCharacteristics 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 17
2021
A phase 2 evaluation of pembrolizumab for recurrent Lynch‐like versus sporadic endometrial cancers with microsatellite instability
Bellone S, Roque DM, Siegel ER, Buza N, Hui P, Bonazzoli E, Guglielmi A, Zammataro L, Nagarkatti N, Zaidi S, Lee J, Silasi D, Huang GS, Andikyan V, Damast S, Clark M, Azodi M, Schwartz PE, Tymon‐Rosario J, Harold JA, Mauricio D, Zeybek B, Menderes G, Altwerger G, Ratner E, Alexandrov LB, Iwasaki A, Kong Y, Song E, Dong W, Elvin JA, Choi J, Santin AD. A phase 2 evaluation of pembrolizumab for recurrent Lynch‐like versus sporadic endometrial cancers with microsatellite instability. Cancer 2021, 128: 1206-1218. PMID: 34875107, PMCID: PMC9465822, DOI: 10.1002/cncr.34025.Peer-Reviewed Original ResearchConceptsObjective response rateImmune checkpoint inhibitorsProgression-free survivalEndometrial cancerWhole-exome sequencingSporadic endometrial cancerOverall survivalEnd pointPhase 2 pilot studyPrimary end pointSecondary end pointsTumor mutation burdenPhase 2 evaluationLarger confirmatory studiesAntigen processing/presentationProcessing/presentationCheckpoint inhibitorsSurgical resectionICI resistanceDMMR patientsPrognostic significanceDMMR tumorsMechanisms of resistanceLocal treatmentSporadic MSIMinimal 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 seriesA phase II evaluation of pembrolizumab in recurrent microsatellite instability-high (MSI-H) endometrial cancer patients with Lynch-like versus MLH-1 methylated characteristics (NCT02899793)
Bellone S, Roque DM, Siegel ER, Buza N, Hui P, Bonazzoli E, Guglielmi A, Zammataro L, Nagarkatti N, Zaidi S, Lee J, Silasi D, Huang GS, Andikyan V, Damast S, Clark M, Azodi M, Schwartz PE, Tymon-Rosario J, Harold J, Mauricio D, Zeybek B, Menderes G, Altwerger G, Ratner E, Alexandrov LB, Iwasaki A, Kong Y, Song E, Dong W, Elvin J, Choi J, Santin AD. A phase II evaluation of pembrolizumab in recurrent microsatellite instability-high (MSI-H) endometrial cancer patients with Lynch-like versus MLH-1 methylated characteristics (NCT02899793). Annals Of Oncology 2021, 32: 1045-1046. PMID: 33932502, PMCID: PMC9465821, DOI: 10.1016/j.annonc.2021.04.013.Commentaries, Editorials and LettersHER2 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 immunohistochemistryDoes Specimen Type Have an Impact on HER2 Status in Endometrial Serous Carcinoma? Discordant HER2 Status of Paired Endometrial Biopsy and Hysterectomy Specimens in the Presence of Frequent Intratumoral Heterogeneity
Rottmann D, Assem H, Matsumoto N, Wong S, Hui P, Buza N. Does Specimen Type Have an Impact on HER2 Status in Endometrial Serous Carcinoma? Discordant HER2 Status of Paired Endometrial Biopsy and Hysterectomy Specimens in the Presence of Frequent Intratumoral Heterogeneity. International Journal Of Gynecological Pathology 2020, 40: 263-271. PMID: 32897955, DOI: 10.1097/pgp.0000000000000690.Peer-Reviewed Original ResearchConceptsEndometrial serous carcinomaDiscordant HER2 statusHER2 immunohistochemical scoresHER2 protein expressionSerous carcinomaHER2 statusEndometrial biopsies/curettingsImmunohistochemical scoreProtein expressionHER2 testingIntratumoral heterogeneityEndometrial biopsy/curettageProlonged progression-free survivalHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2HER2 testing algorithmProgression-free survivalGrowth factor receptor 2HER2-negative tumorsFinal study cohortHER2-positive tumorsRecent clinical trialsSpecimen typesFactor receptor 2Optimal specimen typesHER2 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
2018
Minimal microsatellite shift in microsatellite instability high endometrial cancer: a significant pitfall in diagnostic interpretation
Wu X, Snir O, Rottmann D, Wong S, Buza N, Hui P. Minimal microsatellite shift in microsatellite instability high endometrial cancer: a significant pitfall in diagnostic interpretation. Modern Pathology 2018, 32: 650-658. PMID: 30443012, DOI: 10.1038/s41379-018-0179-3.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBiomarkers, TumorColorectal Neoplasms, Hereditary NonpolyposisDNA-Binding ProteinsEndometrial NeoplasmsFemaleGenetic LociGenetic Predisposition to DiseaseHumansImmunohistochemistryMicrosatellite InstabilityMiddle AgedMismatch Repair Endonuclease PMS2MutL Protein Homolog 1MutS Homolog 2 ProteinPhenotypePolymerase Chain ReactionPredictive Value of TestsReproducibility of ResultsConceptsEndometrial cancerMLH1/PMS2Endometrial carcinomaMSH6 lossMicrosatellite shiftCancer cohortMismatch repair deficiency testingMicrosatellite instability-high colorectal cancerEndometrial cancer cohortLoss of PMS2Clear cell carcinomaColorectal cancer cohortHigh colorectal cancerLynch syndrome familiesMSH2/MSH6PMS2 lossCell carcinomaColorectal cancerDeficiency testingSolid malignanciesColorectal carcinomaCarcinomaCancerIsolated lossMSH-6
2016
Mismatch repair deficiency testing in clinical practice
Buza N, Ziai J, Hui P. Mismatch repair deficiency testing in clinical practice. Expert Review Of Molecular Diagnostics 2016, 16: 591-604. PMID: 26895074, DOI: 10.1586/14737159.2016.1156533.Peer-Reviewed Original ResearchConceptsLynch syndromeDeficiency testingMismatch repair deficiency testingMicrosatellite instabilityMMR deficiency testingMMR gene deficiencyDNA mismatch repair genesCurrent diagnostic algorithmsLynch syndrome familiesProfound genetic instabilityMicrosatellite instability analysisMismatch repair genesEndometrial malignancyClinical managementUltimate diagnosisClinical OncologyClinical practiceClinical testingTumor tissueSyndromeCancer developmentMMR genesDiagnostic algorithmGene deficiencyGermline DNA
2015
Diagnostic application of KRAS mutation testing in uterine microglandular proliferations
Hong W, Abi-Raad R, Alomari AK, Hui P, Buza N. Diagnostic application of KRAS mutation testing in uterine microglandular proliferations. Human Pathology 2015, 46: 1000-1005. PMID: 25997988, DOI: 10.1016/j.humpath.2015.03.010.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdultAgedAged, 80 and overBiopsyCell ProliferationCervix UteriDiagnosis, DifferentialDNA Mutational AnalysisEndometrial HyperplasiaEndometrial NeoplasmsFemaleHumansMiddle AgedMutationPredictive Value of TestsProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)Ras ProteinsConceptsKRAS mutation analysisEndometrial adenocarcinomaMicroglandular hyperplasiaMicroglandular patternKRAS mutationsCareful morphological assessmentEndometrial mucinous carcinomaKRAS mutation testingCases of EMAMutation analysisFrequent KRAS mutationsElectronic medical recordsDifferential diagnostic toolHigh mitotic activityEndometrial biopsyImmunohistochemical workupUterine cervixMucinous carcinomaClinical historyDiagnostic challengeDiagnostic dilemmaGlandular proliferationMucinous lesionsMedical recordsEAC cases
2014
Mitotically Active Microglandular Hyperplasia of the Cervix
Abi-Raad R, Alomari A, Hui P, Buza N. Mitotically Active Microglandular Hyperplasia of the Cervix. International Journal Of Gynecological Pathology 2014, 33: 524-530. PMID: 25083971, DOI: 10.1097/pgp.0000000000000086.Peer-Reviewed Original ResearchMeSH KeywordsAdultCervix UteriDiagnosis, DifferentialEndometrial HyperplasiaEndometrial NeoplasmsFemaleHumansHyperplasiaMiddle AgedUterine Cervical NeoplasmsConceptsHuman papillomavirus (HPV) statusMicroglandular hyperplasiaSmall biopsy specimensEndometrial malignancyClinical historyBiopsy specimensHigh risk human papillomavirus statusCarcinoembryonic antigenKi-67 proliferation indexMitotic activityModerate nuclear atypiaPatient's clinical historySignet ring cellsSignificant mitotic activityReticular growth patternMicroglandular patternVimentin immunostainsPatient ageCase seriesEndocervical polypEndometrial adenocarcinomaEndocervical glandsDiagnostic dilemmaClinical prognosisMucinous differentiationHER2/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