2021
A Timely Update of Immunohistochemistry and Molecular Classification in the Diagnosis and Risk Assessment of Endometrial Carcinomas.
Wang M, Hui P. A Timely Update of Immunohistochemistry and Molecular Classification in the Diagnosis and Risk Assessment of Endometrial Carcinomas. Archives Of Pathology & Laboratory Medicine 2021, 145: 1367-1378. PMID: 34673912, DOI: 10.5858/arpa.2021-0098-ra.Peer-Reviewed Original ResearchBiomarkers, TumorCarcinomaDNA Copy Number VariationsDNA Polymerase IIEndometrial NeoplasmsFemaleGene DosageHumansImmunohistochemistryMicrosatellite InstabilityMolecular Diagnostic TechniquesMutationPoly-ADP-Ribose Binding ProteinsPredictive Value of TestsPrognosisTerminology as TopicTumor Suppressor Protein p53
2020
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
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 typesSacituzumab govitecan, an antibody‐drug conjugate targeting trophoblast cell‐surface antigen 2, shows cytotoxic activity against poorly differentiated endometrial adenocarcinomas in vitro and in vivo
Perrone E, Manara P, Lopez S, Bellone S, Bonazzoli E, Manzano A, Zammataro L, Bianchi A, Zeybek B, Buza N, Tymon‐Rosario J, Altwerger G, Han C, Menderes G, Huang GS, Ratner E, Silasi D, Azodi M, Hui P, Schwartz PE, Scambia G, Santin AD. Sacituzumab govitecan, an antibody‐drug conjugate targeting trophoblast cell‐surface antigen 2, shows cytotoxic activity against poorly differentiated endometrial adenocarcinomas in vitro and in vivo. Molecular Oncology 2020, 14: 645-656. PMID: 31891442, PMCID: PMC7053235, DOI: 10.1002/1878-0261.12627.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, Monoclonal, HumanizedAntibody-Dependent Cell CytotoxicityAntigens, NeoplasmAntineoplastic AgentsCamptothecinCarcinoma, EndometrioidCell Adhesion MoleculesCell DifferentiationCell Line, TumorCell SurvivalEndometrial NeoplasmsFemaleHumansImmunoconjugatesImmunohistochemistryIrinotecanMiceMice, SCIDTissue Array AnalysisXenograft Model Antitumor AssaysConceptsAntibody-dependent cell cytotoxicityCell surface antigen 2EC cell linesSacituzumab govitecanTrop-2 expressionPrimary tumor cell linesTrop-2Xenograft modelAntigen 2Cell linesTumor cell linesCommon gynecologic malignancyFuture clinical trialsChromium release assaysParaffin-embedded tumorsTumor growth inhibitionSignificant bystander killingEC xenograftsGynecologic malignanciesEndometrial cancerEndometrial adenocarcinomaEndometrioid carcinoma tissuesPreclinical activityControl antibodyClinical trialsFrequent loss of mutation-specific mismatch repair protein expression in nonneoplastic endometrium of Lynch syndrome patients
Wong S, Hui P, Buza N. Frequent loss of mutation-specific mismatch repair protein expression in nonneoplastic endometrium of Lynch syndrome patients. Modern Pathology 2020, 33: 1172-1181. PMID: 31932681, DOI: 10.1038/s41379-020-0455-x.Peer-Reviewed Original ResearchConceptsLynch syndrome patientsLynch syndromeMMR protein expressionSporadic endometrial carcinomasSyndrome patientsEndometrial cancerEndometrial glandsEndometrial carcinomaProtein expressionLynch syndrome-associated endometrial cancerGermline mutationsMismatch repair protein expressionMMR protein immunohistochemistryEndometrial cancer patientsNonneoplastic endometriumBenign endometrial tissuesMicrosatellite instability testingMMR protein lossGermline mutation analysisDNA mismatch repair genesRepair protein expressionMismatch repair genesBackground endometriumMMR immunohistochemistryProphylactic hysterectomy
2019
In vitro and in vivo activity of sacituzumab govitecan, an antibody-drug conjugate targeting trophoblast cell-surface antigen 2 (Trop-2) in uterine serous carcinoma
Han C, Perrone E, Zeybek B, Bellone S, Tymon-Rosario J, Altwerger G, Menderes G, Feinberg J, Haines K, Muller Karger ME, Bianchi A, Zammataro L, Manzano A, Bonazzoli E, Manara P, Buza N, Hui P, Ratner E, Silasi DA, Huang GS, Azodi M, Schwartz PE, Lopez S, Santin AD. In vitro and in vivo activity of sacituzumab govitecan, an antibody-drug conjugate targeting trophoblast cell-surface antigen 2 (Trop-2) in uterine serous carcinoma. Gynecologic Oncology 2019, 156: 430-438. PMID: 31839338, DOI: 10.1016/j.ygyno.2019.11.018.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, Monoclonal, HumanizedAntibody-Dependent Cell CytotoxicityAntigens, NeoplasmCamptothecinCell Adhesion MoleculesCell Line, TumorCystadenocarcinoma, SerousFemaleFlow CytometryHumansImmunoconjugatesImmunohistochemistryMiceMice, SCIDMolecular Targeted TherapyRandom AllocationTissue Array AnalysisUterine NeoplasmsXenograft Model Antitumor AssaysConceptsUterine serous carcinomaCell surface antigen 2Sacituzumab govitecanTrop-2 expressionTrop-2Serous carcinomaAntigen 2Advanced/recurrent diseasePrimary uterine serous carcinomaResistant human tumorsSignificant bystander killingUSC patientsUSC xenograftsRecurrent diseaseClinical responseEndometrial cancerAggressive variantPoor prognosisPreclinical activityPrimary tumorIntravenous administrationClinical developmentUSC samplesActive metaboliteSN-38
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-6Biomarker P16 predicts progression risk of anal low-grade squamous intraepithelial lesions
Liu Y, Blakely M, Sigel K, Thin TH, Hui P, Donovan M, Gaisa MM. Biomarker P16 predicts progression risk of anal low-grade squamous intraepithelial lesions. AIDS 2018, 32: 2309-2316. PMID: 30005024, PMCID: PMC6862769, DOI: 10.1097/qad.0000000000001957.Peer-Reviewed Original ResearchConceptsLow-grade squamous intraepithelial lesionsAnal low-grade squamous intraepithelial lesionsSquamous intraepithelial lesionsHigh-grade squamous intraepithelial lesionsBiomarker p16Intraepithelial lesionsIndex lesionP16 immunohistochemistryProgression riskHigh-risk human papillomavirus DNACD4 T-cell countFormer smoker statusHistory of condylomaT-cell countsHR-HPV DNAYear of diagnosisHuman papillomavirus DNASemi-quantitative scoring systemAssociation of predictorsLogistic regression modelsOnly significant predictorOrdinal logistic regression modelsClinical outcomesUnderwent surveillanceRetrospective study
2017
Immunohistochemistry in Gynecologic Pathology: An Example-Based Practical Update
Buza N, Hui P. Immunohistochemistry in Gynecologic Pathology: An Example-Based Practical Update. Archives Of Pathology & Laboratory Medicine 2017, 141: 1052-1071. PMID: 28745567, DOI: 10.5858/arpa.2016-0541-ra.Peer-Reviewed Original ResearchComprehensive Analysis of PAX8 Expression in Epithelial Malignancies of the Uterine Cervix
Wong S, Hong W, Hui P, Buza N. Comprehensive Analysis of PAX8 Expression in Epithelial Malignancies of the Uterine Cervix. International Journal Of Gynecological Pathology 2017, 36: 101-106. PMID: 27362905, DOI: 10.1097/pgp.0000000000000309.Peer-Reviewed Original ResearchMeSH KeywordsBiomarkers, TumorFemaleHumansImmunohistochemistryPAX8 Transcription FactorTissue Array AnalysisUterine Cervical NeoplasmsConceptsSquamous cell carcinomaEpithelial malignanciesPAX8 expressionAdenosquamous carcinomaMajority of SCCsCervical squamous cell carcinomaPossible primary sitesEndometrioid-type tumorsWeak nuclear stainingTissue microarray slidesGynecologic malignanciesEndometrial adenocarcinomaEndometrioid adenocarcinomaMetastatic lesionsEndometrial carcinomaMetastatic sitesUterine cervixCell carcinomaCervical tumorsEndocervical adenocarcinomaDifferential diagnosisPrimary siteAdenocarcinomaCarcinomaMalignancy
2015
Grading of atypia in genital skin lesions: routine microscopic evaluation and use of p16 immunostaining
Ezaldein H, Lott JP, McNiff JM, Hui P, Buza N, Ko CJ. Grading of atypia in genital skin lesions: routine microscopic evaluation and use of p16 immunostaining. Journal Of Cutaneous Pathology 2015, 42: 519-526. PMID: 25951050, DOI: 10.1111/cup.12525.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overBiomarkers, TumorCross-Sectional StudiesCyclin-Dependent Kinase Inhibitor p16FemaleGenitalia, FemaleHumansImmunohistochemistryMaleMiddle AgedNeoplasm ProteinsObserver VariationPapillomavirus InfectionsSensitivity and SpecificitySkin DiseasesSquamous Intraepithelial Lesions of the CervixUterine Cervical NeoplasmsConceptsGenital skin lesionsHigh-grade squamous intraepithelial lesionsLow-grade squamous intraepithelial lesionsSquamous intraepithelial lesionsP16 immunostainingSkin lesionsDiagnostic agreementIntraepithelial lesionsUseful adjunctive markerHigh-grade dysplasiaCross-sectional studyRoutine microscopic evaluationDegree of atypiaAdjunctive markerInter-observer agreementPrimary outcomeCervical lesionsHistopathologic assessmentHistopathologic evaluationConsensus diagnosisReactive atypiaEosin stainingOriginal diagnosisAtypiaLesionsCraniopharyngioma arising in a Rathke's cleft cyst: case report.
Alomari AK, Kelley BJ, Damisah E, Marks A, Hui P, DiLuna M, Vortmeyer A. Craniopharyngioma arising in a Rathke's cleft cyst: case report. Journal Of Neurosurgery Pediatrics 2015, 15: 250-4. PMID: 25555112, DOI: 10.3171/2014.11.peds14370.Peer-Reviewed Original ResearchConceptsRathke's cleft cystCleft cystDecreased visual acuityFocal squamous metaplasiaHistological findingsSquamous metaplasiaVisual acuityCase reportRim enhancementSellar lesionsSerial MRIIntracranial tumorsKi-67Histological examinationBRAF mutationsYears durationSellar regionLesion typeLesionsResidual enhancementCraniopharyngiomaMolecular classificationEctodermal lesionsPatientsCysts
2014
T‐DM1, a novel antibody–drug conjugate, is highly effective against primary HER2 overexpressing uterine serous carcinoma in vitro and in vivo
English DP, Bellone S, Schwab CL, Bortolomai I, Bonazzoli E, Cocco E, Buza N, Hui P, Lopez S, Ratner E, Silasi D, Azodi M, Schwartz PE, Rutherford TJ, Santin AD. T‐DM1, a novel antibody–drug conjugate, is highly effective against primary HER2 overexpressing uterine serous carcinoma in vitro and in vivo. Cancer Medicine 2014, 3: 1256-1265. PMID: 24890382, PMCID: PMC4302675, DOI: 10.1002/cam4.274.Peer-Reviewed Original ResearchMeSH KeywordsAdo-Trastuzumab EmtansineAgedAged, 80 and overAnimalsAntibodies, Monoclonal, HumanizedAntibody-Dependent Cell CytotoxicityAntineoplastic AgentsApoptosisCarcinomaCell Cycle CheckpointsCell ProliferationDisease Models, AnimalFemaleGene AmplificationGene ExpressionGene Expression Regulation, NeoplasticHumansImmunohistochemistryIn Situ Hybridization, FluorescenceMaytansineMiddle AgedReceptor, ErbB-2RNA, MessengerTrastuzumabUterine NeoplasmsXenograft Model Antitumor AssaysConceptsUterine serous carcinomaUSC cell linesNovel antibody-drug conjugateT-DM1USC xenograftsAntibody-drug conjugatesSerous carcinomaAntibody-dependent cell-mediated cytotoxicityEpidermal growth factor receptor 2Cell linesPrimary USC cell linesGrowth factor receptor 2Cell-mediated cytotoxicityChromium release assaysNovel treatment optionsHER2 protein overexpressionFactor receptor 2HER2 gene amplificationHER2 protein expressionC-erbB2 gene amplificationGene amplificationDisease refractoryPrimary HER2USC cellsUSC patientsImmunohistochemistry and other ancillary techniques in the diagnosis of gestational trophoblastic diseases
Buza N, Hui P. Immunohistochemistry and other ancillary techniques in the diagnosis of gestational trophoblastic diseases. Seminars In Diagnostic Pathology 2014, 31: 223-232. PMID: 24907943, DOI: 10.1053/j.semdp.2014.03.004.Peer-Reviewed Original Research
2013
A Retrospective Population-Based Comparison of HER2 Immunohistochemistry and Fluorescence In Situ Hybridization in Breast Carcinomas: Impact of 2007 American Society of Clinical Oncology/ College of American Pathologists Criteria
Schalper KA, Kumar S, Hui P, Rimm DL, Gershkovich P. A Retrospective Population-Based Comparison of HER2 Immunohistochemistry and Fluorescence In Situ Hybridization in Breast Carcinomas: Impact of 2007 American Society of Clinical Oncology/ College of American Pathologists Criteria. Archives Of Pathology & Laboratory Medicine 2013, 138: 213-9. PMID: 24164555, DOI: 10.5858/arpa.2012-0617-oa.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overBreast NeoplasmsCarcinomaCohort StudiesConnecticutFemaleHospitals, UniversityHumansImmunohistochemistryIn Situ Hybridization, FluorescenceMammary Glands, HumanMiddle AgedNeoplasm GradingNeoplasm InvasivenessNeoplasm ProteinsPractice Guidelines as TopicReceptor, ErbB-2Retrospective StudiesSocieties, MedicalUnited StatesUnited States Food and Drug AdministrationChromosome 17 polysomy: correlation with histological parameters and HER2NEU gene amplification
Orsaria M, Khelifa S, Buza N, Kamath A, Hui P. Chromosome 17 polysomy: correlation with histological parameters and HER2NEU gene amplification. Journal Of Clinical Pathology 2013, 66: 1070. PMID: 23908451, DOI: 10.1136/jclinpath-2013-201506.Peer-Reviewed Original ResearchConceptsInvasive breast carcinomaHER2 protein overexpressionPolysomy 17Breast carcinomaHistological parametersPoor Nottingham Prognostic IndexGene amplificationPrimary invasive breast carcinomasLocal tumor extentProgesterone receptor negativityNottingham Prognostic IndexHigh histological gradeProtein overexpressionHigh nuclear gradeCEP17 copy numberChromosome 17 polysomyReceptor negativityToward standard HER2 testing of endometrial serous carcinoma: 4-year experience at a large academic center and recommendations for clinical practice
Buza N, English DP, Santin AD, Hui P. Toward standard HER2 testing of endometrial serous carcinoma: 4-year experience at a large academic center and recommendations for clinical practice. Modern Pathology 2013, 26: 1605-1612. PMID: 23765245, DOI: 10.1038/modpathol.2013.113.Peer-Reviewed Original ResearchConceptsEndometrial serous carcinomaSerous carcinomaHER2 overexpressionEndometrial carcinomaMedical recordsImmunohistochemical scoreHER2 testingProtein expressionHER2 immunohistochemistrySignificant heterogeneityScoring systemMultiple tumor sectionsPure serous carcinomaHER2-positive casesHER2-positive tumorsScoring criteriaEndometrial carcinoma casesFDA criteriaPatients' medical recordsLarge academic centerHER2 FISH resultsHER2 protein overexpressionPromising therapeutic targetOverall concordance rateHER2 immunohistochemical scoresCancerous ‘floater’: a lesson learned about tissue identity testing, endometrial cancer and microsatellite instability
Bossuyt V, Buza N, Ngo NT, Much MA, Asis MC, Schwartz PE, Hui P. Cancerous ‘floater’: a lesson learned about tissue identity testing, endometrial cancer and microsatellite instability. Modern Pathology 2013, 26: 1264-1269. PMID: 23558568, DOI: 10.1038/modpathol.2013.63.Peer-Reviewed Original ResearchConceptsEndometrial curettageBackground endometriumStaging surgeryEndometrial cancerEndometrial polypsEndometrioid adenocarcinomaEndometrial adenocarcinomaFurther workupPap smearSecretory endometriumDiagnostic workupEndometrial cellsDNA genotypingAdenocarcinoma tissuesMolecular testingMicrosatellite instabilityAllelic patternsAdenocarcinomaPatientsConfirmation of contaminationTissue fragmentsCurettageEndometriumWorkupMolecular pathologists
2011
Her2/neu extracellular domain shedding in uterine serous carcinoma: implications for immunotherapy with trastuzumab
Todeschini P, Cocco E, Bellone S, Varughese J, Lin K, Carrara L, Guzzo F, Buza N, Hui P, Silasi DA, Ratner E, Azodi M, Schwartz PE, Rutherford TJ, Pecorelli S, Santin AD. Her2/neu extracellular domain shedding in uterine serous carcinoma: implications for immunotherapy with trastuzumab. British Journal Of Cancer 2011, 105: 1176-1182. PMID: 21915118, PMCID: PMC3208497, DOI: 10.1038/bjc.2011.369.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAntibodies, Monoclonal, HumanizedAntibody-Dependent Cell CytotoxicityAntineoplastic AgentsCulture Media, ConditionedFemaleFlow CytometryGenes, erbB-2HumansImmunohistochemistryImmunotherapyIn Situ Hybridization, FluorescenceMiddle AgedReal-Time Polymerase Chain ReactionTrastuzumabUterine NeoplasmsConceptsAntibody-dependent cell-mediated cytotoxicityTrastuzumab-mediated antibody-dependent cell-mediated cytotoxicityUSC cell linesHER2/neu expressionUSC patientsNeu expressionHER2/ECD levelsCell linesUterine serous carcinoma cell linesCell-mediated cytotoxicityUterine serous carcinomaChromium release assaysHER2/neuFISH-positive tumorsC-erbB2 gene amplificationTrastuzumab-induced cytotoxicityNeu tumorsHealthy womenSerous carcinomaCarcinoma cell linesReal-time PCRTherapeutic effectC-erbB2 genePatients
2010
Expression of glypican 3 in placental site trophoblastic tumor
Ou-Yang RJ, Hui P, Yang XJ, Zynger DL. Expression of glypican 3 in placental site trophoblastic tumor. Diagnostic Pathology 2010, 5: 64. PMID: 20868507, PMCID: PMC2954974, DOI: 10.1186/1746-1596-5-64.Peer-Reviewed Original ResearchConceptsPlacental site trophoblastic tumorPlacental site noduleInvasive cervical squamous cell carcinomaCervical squamous cell carcinomaNon-trophoblastic tumorsSquamous cell carcinomaTrophoblastic tumorCell carcinomaCytoplasmic stainingRare gestational trophoblastic neoplasmDiagnostic markerGestational trophoblastic neoplasmsGestational trophoblastic diseaseUseful diagnostic markerNon-neoplastic tissuesMembrane-bound heparan sulfate proteoglycanEndometrial adenocarcinomaUterine tumorsIntermediate trophoblastTrophoblastic diseaseTrophoblastic neoplasmsImmunohistochemical expressionHepatocellular carcinomaImmunohistochemical markersResultsEighty percentGlial Heterotopia of the Uterine Cervix: DNA Genotyping Confirmation of its Fetal Origin
Siddon A, Hui P. Glial Heterotopia of the Uterine Cervix: DNA Genotyping Confirmation of its Fetal Origin. International Journal Of Gynecological Pathology 2010, 29: 394-397. PMID: 20567155, DOI: 10.1097/pgp.0b013e3181c5a7e8.Peer-Reviewed Original ResearchConceptsGlial heterotopiaUterine cervixGlial tissueKlinefelter syndromeFetal originGlial fibrillary acidic proteinMature glial tissueFibrillary acidic proteinDown syndrome fetusesFetal brain tissueEndocervical glandular epitheliumFetal tissue samplesS100 immunohistochemistryCervical polypsCervical lesionsElective terminationIntriguing lesionsPregnancy terminationIdentical genetic profilesSyndrome fetusesGlandular epitheliumSyndromeBrain tissueFirst gestationDown syndrome