2023
Trastuzumab deruxtecan (DS-8201a), a HER2-targeting antibody–drug conjugate with topoisomerase I inhibitor payload, shows antitumor activity in uterine and ovarian carcinosarcoma with HER2/neu expression
Mauricio D, Bellone S, Mutlu L, McNamara B, Manavella D, Demirkiran C, Verzosa M, Buza N, Hui P, Hartwich T, Harold J, Yang-Hartwich Y, Zipponi M, Altwerger G, Ratner E, Huang G, Clark M, Andikyan V, Azodi M, Schwartz P, Santin A. Trastuzumab deruxtecan (DS-8201a), a HER2-targeting antibody–drug conjugate with topoisomerase I inhibitor payload, shows antitumor activity in uterine and ovarian carcinosarcoma with HER2/neu expression. Gynecologic Oncology 2023, 170: 38-45. PMID: 36610380, PMCID: PMC10445234, DOI: 10.1016/j.ygyno.2022.12.018.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, Monoclonal, HumanizedCarcinosarcomaCell Line, TumorFemaleHumansImmunoconjugatesIn Situ Hybridization, FluorescenceMiceOvarian NeoplasmsReceptor, ErbB-2Topoisomerase I InhibitorsTrastuzumabConceptsHER2/neu expressionDS-8201aAntibody-drug conjugatesNeu expressionCS cell linesTrastuzumab deruxtecanOvarian carcinosarcomaTopoisomerase I inhibitor payloadCell linesAggressive gynecologic malignancyLimited therapeutic optionsEffective antibody-drug conjugatesCarcinosarcoma cell lineGynecologic malignanciesTherapeutic optionsIsotype controlSarcomatous elementsXenograft modelBystander killingFlow cytometryTumor cellsCarcinosarcomaAntitumor activityVivo studiesVivo activity
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 ResearchMeSH KeywordsAntibodies, Monoclonal, HumanizedDNA Mismatch RepairEndometrial NeoplasmsFemaleHumansMicrosatellite InstabilityNeoplasm Recurrence, LocalPilot ProjectsProspective StudiesConceptsObjective 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 MSIDHES0815A, 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 variants
2020
Cervical carcinomas that overexpress human trophoblast cell-surface marker (Trop-2) are highly sensitive to the antibody-drug conjugate sacituzumab govitecan
Zeybek B, Manzano A, Bianchi A, Bonazzoli E, Bellone S, Buza N, Hui P, Lopez S, Perrone E, Manara P, Zammataro L, Altwerger G, Han C, Tymon-Rosario J, Menderes G, Ratner E, Silasi DA, Huang GS, Azodi M, Schwartz PE, Santin A. Cervical carcinomas that overexpress human trophoblast cell-surface marker (Trop-2) are highly sensitive to the antibody-drug conjugate sacituzumab govitecan. Scientific Reports 2020, 10: 973. PMID: 31969666, PMCID: PMC6976591, DOI: 10.1038/s41598-020-58009-3.Peer-Reviewed Original ResearchConceptsSquamous cell carcinomaSacituzumab govitecanTrop-2 expressionAntibody-drug conjugatesCell surface markersXenograft modelTrop-2Adenocarcinoma/adenosquamous carcinomaAnti-Trop-2 antibodyCell linesWeekly intravenous administrationSignificant tumor growth inhibitionCervical cancer patientsPrimary cervical cancerStrong diffuse stainingPrimary cervical tumorsCervical cancer cell linesEpithelial solid tumorsReal-time polymerase chain reactionTumor growth inhibitionHuman placental tissuePositive cell linesNegative cell linesVivo antitumor activityCancer cell linesSacituzumab 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 trials
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
In vitro and in vivo activity of IMGN853, an Antibody-Drug Conjugate targeting Folate Receptor Alpha linked to DM4, in biologically aggressive endometrial cancers
Altwerger G, Bonazzoli E, Bellone S, Egawa-Takata T, Menderes G, Pettinella F, Bianchi A, Riccio F, Feinberg J, Zammataro L, Han C, Yadav G, Dugan K, Morneault A, Ponte JF, Buza N, Hui P, Wong S, Litkouhi B, Ratner E, Silasi DA, Huang GS, Azodi M, Schwartz PE, Santin AD. In vitro and in vivo activity of IMGN853, an Antibody-Drug Conjugate targeting Folate Receptor Alpha linked to DM4, in biologically aggressive endometrial cancers. Molecular Cancer Therapeutics 2018, 17: molcanther.0930.2017. PMID: 29440294, PMCID: PMC5932245, DOI: 10.1158/1535-7163.mct-17-0930.Peer-Reviewed Original ResearchConceptsEndometrial cancerXenograft modelCell linesTumor cell linesPatient-derived xenograft modelsUterine cancer cell linesAggressive endometrial cancersEndometrial cancer deathsExpression of FRαPrimary USC cell linesRecurrent endometrial cancerReceptor alpha expressionUSC cell linesImpressive antitumor activityMol Cancer TherUSC patientsCancer cell linesMedian survivalCancer deathPDX modelsPreclinical dataUterine cancerComplete resolutionIMGN853Grade 3
2017
Superior in vitro and in vivo activity of trastuzumab-emtansine (T-DM1) in comparison to trastuzumab, pertuzumab and their combination in epithelial ovarian carcinoma with high HER2/neu expression
Menderes G, Bonazzoli E, Bellone S, Altwerger G, Black JD, Dugan K, Pettinella F, Masserdotti A, Riccio F, Bianchi A, Zammataro L, de Haydu C, Buza N, Hui P, Wong S, Huang GS, Litkouhi B, Ratner E, Silasi DA, Azodi M, Schwartz PE, Santin AD. Superior in vitro and in vivo activity of trastuzumab-emtansine (T-DM1) in comparison to trastuzumab, pertuzumab and their combination in epithelial ovarian carcinoma with high HER2/neu expression. Gynecologic Oncology 2017, 147: 145-152. PMID: 28705408, PMCID: PMC5605415, DOI: 10.1016/j.ygyno.2017.07.009.Peer-Reviewed Original ResearchConceptsHigh HER2/neu expressionHER2/neu expressionEpithelial ovarian cancerHER2/neuAnti-tumor activityEOC cell linesT-DM1Neu expressionChemotherapy-resistant epithelial ovarian cancerLimited anti-tumor activityAntibody-dependent cell-mediated cytotoxicity (ADCC) activityCell linesSuperior anti-tumor activityCombination of trastuzumabLethal gynecologic malignancyEpithelial ovarian carcinomaTumor growth inhibitionEOC xenograftsGynecologic malignanciesPreclinical dataOvarian carcinomaOvarian cancerClinical studiesXenograft modelSingle agentSYD985, a novel duocarmycin-based HER2-targeting antibody-drug conjugate, shows promising antitumor activity in epithelial ovarian carcinoma with HER2/Neu expression
Menderes G, Bonazzoli E, Bellone S, Black J, Altwerger G, Masserdotti A, Pettinella F, Zammataro L, Buza N, Hui P, Wong S, Litkouhi B, Ratner E, Silasi DA, Huang GS, Azodi M, Schwartz PE, Santin AD. SYD985, a novel duocarmycin-based HER2-targeting antibody-drug conjugate, shows promising antitumor activity in epithelial ovarian carcinoma with HER2/Neu expression. Gynecologic Oncology 2017, 146: 179-186. PMID: 28473206, PMCID: PMC5533304, DOI: 10.1016/j.ygyno.2017.04.023.Peer-Reviewed Original ResearchMeSH KeywordsAdo-Trastuzumab EmtansineAdultAgedAnimalsAntibodies, Monoclonal, HumanizedAntibody-Dependent Cell CytotoxicityAntineoplastic Agents, AlkylatingBystander EffectCarcinoma, Ovarian EpithelialCell Line, TumorDuocarmycinsFemaleHumansImmunotoxinsIndolesMaytansineMiceMice, SCIDMiddle AgedNeoplasms, Glandular and EpithelialOvarian NeoplasmsPyrrolidinonesRandom AllocationReceptor, ErbB-2TrastuzumabXenograft Model Antitumor AssaysConceptsHER2/neu expressionAntibody-dependent cellular cytotoxicityEpithelial ovarian cancerLow HER2/neu expressionPeripheral blood lymphocytesHER2/neu 3Antibody-drug conjugatesT-DM1Neu expressionEOC cell linesNeu 3HER2-targeting antibody-drug conjugateNovel antibody-drug conjugateNovel HER2-targeting antibody-drug conjugateEpithelial ovarian carcinomaOvarian cancer xenograftsAnti-tumor activityCell linesEOC xenograftsTrastuzumab emtansineCancer xenograftsBlood lymphocytesOvarian cancerOvarian carcinomaSYD985
2014
T-DM1, a novel antibody-drug conjugate, is highly effective against uterine and ovarian carcinosarcomas overexpressing HER2
Nicoletti R, Lopez S, Bellone S, Cocco E, Schwab CL, Black JD, Centritto F, Zhu L, Bonazzoli E, Buza N, Hui P, Mezzanzanica D, Canevari S, Schwartz PE, Rutherford TJ, Santin AD. T-DM1, a novel antibody-drug conjugate, is highly effective against uterine and ovarian carcinosarcomas overexpressing HER2. Clinical & Experimental Metastasis 2014, 32: 29-38. PMID: 25398397, PMCID: PMC4310789, DOI: 10.1007/s10585-014-9688-8.Peer-Reviewed Original ResearchMeSH KeywordsAdo-Trastuzumab EmtansineAnimalsAntibodies, Monoclonal, HumanizedAntibody-Dependent Cell CytotoxicityAntineoplastic AgentsCarcinosarcomaCell Line, TumorCell ProliferationFemaleImmunoconjugatesM Phase Cell Cycle CheckpointsMaytansineMiceMice, SCIDOvarian NeoplasmsReceptor, ErbB-2TrastuzumabUterine NeoplasmsXenograft Model Antitumor AssaysConceptsCS cell linesT-DM1Cell linesFlow cytometryNovel antibody-drug conjugateAggressive clinical behaviorNovel treatment optionsG2/M phase cell cycle arrestHER2 protein overexpressionM phase cell cycle arrestPhase cell cycle arrestAntibody-drug conjugatesDisease refractoryPrimary HER2Vehicle miceOvarian carcinosarcomaPoor prognosisUterine carcinosarcomaCS patientsTreatment optionsClinical behaviorLonger survivalCell cycle arrestHER2 amplificationCarcinosarcomaT‐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 patients
2012
HER2/neu as a Potential Target for Immunotherapy in Gynecologic Carcinosarcomas
Guzzo F, Bellone S, Buza N, Hui P, Carrara L, Varughese J, Cocco E, Betti M, Todeschini P, Gasparrini S, Schwartz PE, Rutherford TJ, Angioli R, Pecorelli S, Santin AD. HER2/neu as a Potential Target for Immunotherapy in Gynecologic Carcinosarcomas. International Journal Of Gynecological Pathology 2012, 31: 211-221. PMID: 22498937, PMCID: PMC3366047, DOI: 10.1097/pgp.0b013e31823bb24d.Peer-Reviewed Original Research
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
Overexpression of EpCAM in Uterine Serous Papillary Carcinoma: Implications for EpCAM-Specific Immunotherapy With Human Monoclonal Antibody Adecatumumab (MT201)
El-Sahwi K, Bellone S, Cocco E, Casagrande F, Bellone M, Abu-Khalaf M, Buza N, Tavassoli FA, Hui P, Rüttinger D, Silasi DA, Azodi M, Schwartz PE, Rutherford TJ, Pecorelli S, Santin AD. Overexpression of EpCAM in Uterine Serous Papillary Carcinoma: Implications for EpCAM-Specific Immunotherapy With Human Monoclonal Antibody Adecatumumab (MT201). Molecular Cancer Therapeutics 2010, 9: 57-66. PMID: 20053761, PMCID: PMC2806489, DOI: 10.1158/1535-7163.mct-09-0675.Peer-Reviewed Original ResearchMeSH KeywordsAgedAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntibody-Dependent Cell CytotoxicityAntigens, NeoplasmCarcinoma, PapillaryCell Adhesion MoleculesCell Line, TumorCell MembraneCystadenocarcinoma, SerousDrug Resistance, NeoplasmDrug Screening Assays, AntitumorEpithelial Cell Adhesion MoleculeFemaleFlow CytometryGene Expression Regulation, NeoplasticHumansImmunoglobulin GImmunohistochemistryImmunotherapyInterleukin-2Killer Cells, NaturalMiddle AgedNeoplasm MetastasisRNA, MessengerUterine NeoplasmsConceptsUterine serous papillary carcinomaUSPC cell linesNormal endometrial cellsPrimary USPC cell linesAntibody-dependent cellular cytotoxicitySerous papillary carcinomaCellular cytotoxicityPapillary carcinomaCell linesFlow cytometryAdvanced/recurrentStandard treatment modalityCell-dependent cytotoxicityUterine serous carcinomaComplement-dependent cytotoxicitySurface expressionHuman monoclonal antibodyNovel therapeutic strategiesFresh frozen biopsiesHigh surface expressionEpithelial cell adhesion moleculeOverexpression of EpCAMParaffin-embedded tissuesMedian copy numberSerous carcinoma
2009
In vitro activity of pertuzumab in combination with trastuzumab in uterine serous papillary adenocarcinoma
El-Sahwi K, Bellone S, Cocco E, Cargnelutti M, Casagrande F, Bellone M, Abu-Khalaf M, Buza N, Tavassoli FA, Hui P, Silasi DA, Azodi M, Schwartz PE, Rutherford TJ, Pecorelli S, Santin AD. In vitro activity of pertuzumab in combination with trastuzumab in uterine serous papillary adenocarcinoma. British Journal Of Cancer 2009, 102: 134-143. PMID: 19920829, PMCID: PMC2813756, DOI: 10.1038/sj.bjc.6605448.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinoma, PapillaryAgedAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntibody-Dependent Cell CytotoxicityCell Line, TumorComplement System ProteinsCytotoxicity, ImmunologicDimerizationDrug Screening Assays, AntitumorDrug SynergismFemaleHumansImmunoglobulin GIn Vitro TechniquesInterleukin-2Killer Cells, NaturalLymphocytesMiddle AgedReceptor, ErbB-2Signal TransductionTrastuzumabUterine NeoplasmsConceptsAntibody-dependent cell-mediated cytotoxicityUSPC cell linesHER2/neu expressionComplement-dependent cytotoxicityStrong antibody-dependent cell-mediated cytotoxicitySerous papillary adenocarcinomaNeu expressionHER2/neuPapillary adenocarcinomaHigh HER2/neu expressionLow HER2/neu expressionCell linesH chromium release assaysPrimary USPC cell linesAdvanced/recurrentCombination of pertuzumabCell-mediated cytotoxicityHumanised monoclonal antibodyChromium release assaysC-erbB2 gene amplificationActivity of pertuzumabNew therapeutic agentsProliferation-based assaysType II receptorEndometrial cancer