2023
Monitoring Treatment Response, Early Recurrence, and Survival in Uterine Serous Carcinoma and Carcinosarcoma Patients Using Personalized Circulating Tumor DNA Biomarkers
Bellone S, McNamara B, Mutlu L, Demirkiran C, Hartwich T, Harold J, Yang-Hartwich Y, Siegel E, Santin A. Monitoring Treatment Response, Early Recurrence, and Survival in Uterine Serous Carcinoma and Carcinosarcoma Patients Using Personalized Circulating Tumor DNA Biomarkers. International Journal Of Molecular Sciences 2023, 24: 8873. PMID: 37240216, PMCID: PMC10219151, DOI: 10.3390/ijms24108873.Peer-Reviewed Original ResearchConceptsUterine serous carcinomaCS patientsEarly recurrenceDroplet digital polymerase chain reactionCA 125Serous carcinomaCtDNA testingTime of surgeryTime of recurrenceReliable tumor biomarkersTumour DNA biomarkersCarcinosarcoma patientsUSC patientsRecurrent diseaseOccult diseaseOverall survivalEndometrial cancerAggressive variantInitial treatmentRecurrent tumorsResidual tumorClinical findingsTreatment courseTreatment trialsPIK3CA mutations
2020
Phase II evaluation of copanlisib, a selective inhibitor of Pi3kca, in patients with persistent or recurrent endometrial carcinoma harboring PIK3CA hotspot mutations: An NRG Oncology study (NRG-GY008)
Santin AD, Filiaci V, Bellone S, Ratner ES, Mathews CA, Cantuaria G, Gunderson CC, Rutledge T, Buttin BM, Lankes HA, Frumovitz M, Khleif SN, Huh WK, Birrer MJ. Phase II evaluation of copanlisib, a selective inhibitor of Pi3kca, in patients with persistent or recurrent endometrial carcinoma harboring PIK3CA hotspot mutations: An NRG Oncology study (NRG-GY008). Gynecologic Oncology Reports 2020, 31: 100532. PMID: 31934607, PMCID: PMC6951478, DOI: 10.1016/j.gore.2019.100532.Peer-Reviewed Original ResearchProgression-free survivalStable diseaseOverall survivalMixed histologyPIK3CA mutationsGrade 5 adverse eventsMedian progression-free survivalCommon grade 3Common PIK3CA mutationCTCAE version 4GOG performance statusNRG Oncology StudyMedian overall survivalObjective tumor responsePhase II trialPhase II evaluationBest overall responsePIK3CA gene mutationsPIK3CA hotspot mutationsSelective inhibitorEligible patientsMeasurable diseaseHotspot PIK3CA mutationsII trialPrimary endpoint
2019
PI3K oncogenic mutations mediate resistance to afatinib in HER2/neu overexpressing gynecological cancers
Bonazzoli E, Cocco E, Lopez S, Bellone S, Zammataro L, Bianchi A, Manzano A, Yadav G, Manara P, Perrone E, Haines K, Espinal M, Dugan K, Menderes G, Altwerger G, Han C, Zeybek B, Litkouhi B, Ratner E, Silasi DA, Huang GS, Azodi M, Schwartz PE, Santin AD. PI3K oncogenic mutations mediate resistance to afatinib in HER2/neu overexpressing gynecological cancers. Gynecologic Oncology 2019, 153: 158-164. PMID: 30630630, PMCID: PMC6430698, DOI: 10.1016/j.ygyno.2019.01.002.Peer-Reviewed Original ResearchMeSH KeywordsAdultAfatinibAgedAnimalsAntineoplastic AgentsCell Line, TumorClass I Phosphatidylinositol 3-KinasesClass Ia Phosphatidylinositol 3-KinaseDrug Resistance, NeoplasmFemaleGenital Neoplasms, FemaleHumansMiceMice, SCIDMiddle AgedMutationPhosphatidylinositol 3-KinasesProtein Kinase InhibitorsReceptor, ErbB-2TransfectionXenograft Model Antitumor AssaysConceptsHER2/neuAKT/mTOR pathwayPIK3CA mutationsMTOR pathwayActivity of afatinibEffect of afatinibPI3K/AKT/mTOR pathwayPotential mechanismsPIK3CA/AKT/mTOR pathwayRapid tumor growthGreater compensatory increasePI3K mutationsAmplification/mutationOncogenic PIK3CA mutationsAfatinib exposurePIK3CA H1047RGynecological cancerClinical trialsMTOR inhibitorsAfatinibTumor growthCompensatory increasePhosphorylated Akt proteinPIK3CA geneC-erb
2015
PIK3CA oncogenic mutations represent a major mechanism of resistance to trastuzumab in HER2/neu overexpressing uterine serous carcinomas
Black JD, Lopez S, Cocco E, Bellone S, Altwerger G, Schwab CL, English DP, Bonazzoli E, Predolini F, Ferrari F, Ratner E, Silasi DA, Azodi M, Schwartz PE, Santin AD. PIK3CA oncogenic mutations represent a major mechanism of resistance to trastuzumab in HER2/neu overexpressing uterine serous carcinomas. British Journal Of Cancer 2015, 113: 1020-1026. PMID: 26325104, PMCID: PMC4651122, DOI: 10.1038/bjc.2015.306.Peer-Reviewed Original ResearchConceptsUSC cell linesCell linesPIK3CA-mutated tumorsUterine serous carcinomaHER2/neuXenograft mouse modelOncogenic PIK3CA mutationsPrimary HER2Trastuzumab treatmentSerous carcinomaCarcinoma cell linesMechanisms of resistancePIK3CA mutationsTrastuzumab efficacyMouse modelTrastuzumabMouse xenograftsHER2Tumor growthMajor mechanismOncogenic mutationsWild-type cell linesSitu hybridisation
2014
Taselisib, a selective inhibitor of PIK3CA, is highly effective on PIK3CA-mutated and HER2/neu amplified uterine serous carcinoma in vitro and in vivo
Lopez S, Schwab CL, Cocco E, Bellone S, Bonazzoli E, English DP, Schwartz PE, Rutherford T, Angioli R, Santin AD. Taselisib, a selective inhibitor of PIK3CA, is highly effective on PIK3CA-mutated and HER2/neu amplified uterine serous carcinoma in vitro and in vivo. Gynecologic Oncology 2014, 135: 312-317. PMID: 25172762, PMCID: PMC4270135, DOI: 10.1016/j.ygyno.2014.08.024.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAnimalsAntineoplastic AgentsCarcinomaCell Cycle CheckpointsCell Line, TumorCell ProliferationClass I Phosphatidylinositol 3-KinasesDrug Screening Assays, AntitumorFemaleGene AmplificationHumansImidazolesIn Situ Hybridization, FluorescenceIn Vitro TechniquesMiceMiddle AgedNeoplasms, Cystic, Mucinous, and SerousOxazepinesPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsReceptor, ErbB-2Uterine NeoplasmsXenograft Model Antitumor AssaysConceptsHER2/neu gene amplificationUterine serous carcinomaUSC cell linesNeu gene amplificationCell linesHER2/neuPIK3CA mutationsGene amplificationPhosphorylation of S6Serous carcinomaPIK3CA wild typeG0/G1 phaseSelective inhibitorOncogenic PIK3CA mutationsS6 proteinCell cycle distributionPrimary uterine serous carcinomaWild typeDownstream signalingPrimary USC cell linesCell cycleNovel therapeutic optionsDose-dependent increaseDifferential growth inhibitionG1 phase