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
Neratinib shows efficacy in the treatment of HER2 amplified carcinosarcoma in vitro and in vivo
Schwab CL, English DP, Black J, Bellone S, Lopez S, Cocco E, Bonazzoli E, Bussi B, Predolini F, Ferrari F, Ratner E, Silasi DA, Azodi M, Rutherford T, Schwartz PE, Santin AD. Neratinib shows efficacy in the treatment of HER2 amplified carcinosarcoma in vitro and in vivo. Gynecologic Oncology 2015, 139: 112-117. PMID: 26260909, PMCID: PMC4587290, DOI: 10.1016/j.ygyno.2015.08.002.Peer-Reviewed Original ResearchConceptsHER2/neuTreatment of HER2Efficacy of neratinibCarcinosarcoma cell lineTumor growthCell linesEffective treatment optionDeadliest gynecologic malignancyG0/G1 phaseCell cycle distributionCell signaling changesActivation of S6Neratinib treatmentGynecologic malignanciesOverall survivalTreatment optionsClinical trialsXenograft growthNew therapiesHER2NeratinibFlow cytometryNeuCycle distributionSignaling changesDacomitinib (PF-00299804), a second-generation irreversible pan-erbB receptor tyrosine kinase inhibitor, demonstrates remarkable activity against HER2-amplified uterine serous endometrial cancer in vitro
Zhu L, Lopez S, Bellone S, Black J, Cocco E, Zigras T, Predolini F, Bonazzoli E, Bussi B, Stuhmer Z, Schwab CL, English DP, Ratner E, Silasi DA, Azodi M, Schwartz PE, Rutherford TJ, Santin AD. Dacomitinib (PF-00299804), a second-generation irreversible pan-erbB receptor tyrosine kinase inhibitor, demonstrates remarkable activity against HER2-amplified uterine serous endometrial cancer in vitro. Tumor Biology 2015, 36: 5505-5513. PMID: 25669172, PMCID: PMC5573583, DOI: 10.1007/s13277-015-3218-4.Peer-Reviewed Original ResearchConceptsUterine serous carcinomaReceptor tyrosine kinase inhibitorsHER2/neu gene amplificationTyrosine kinase inhibitorsUSC cell linesNeu gene amplificationEndometrial cancerIrreversible pan-ErbB receptor tyrosine kinase inhibitorEpidermal growth factor receptor tyrosine kinase inhibitorsGrowth factor receptor tyrosine kinase inhibitorsEpidermal growth factor receptor 2Cell linesKinase inhibitorsEffect of dacomitinibStandard salvage chemotherapyGrowth factor receptor 2Serous endometrial cancerFlow cytometry-based assayHER2/neuFactor receptor 2Dose-dependent declineGene amplificationCell cycle distributionCytometry-based assayGrowth inhibition
2010
Inhibition of the c-fms proto-oncogene autocrine loop and tumor phenotype in glucocorticoid stimulated human breast carcinoma cells
Toy EP, Lamb T, Azodi M, Roy WJ, Woo HH, Chambers SK. Inhibition of the c-fms proto-oncogene autocrine loop and tumor phenotype in glucocorticoid stimulated human breast carcinoma cells. Breast Cancer Research And Treatment 2010, 129: 411-419. PMID: 21063905, DOI: 10.1007/s10549-010-1247-7.Peer-Reviewed Original ResearchMeSH KeywordsAutocrine CommunicationBreast NeoplasmsCarcinomaCell AdhesionCell Line, TumorCell MovementDexamethasoneDose-Response Relationship, DrugFemaleGlucocorticoidsHumansMacrophage Colony-Stimulating FactorNeoplasm InvasivenessOligonucleotides, AntisensePhenotypePhenylurea CompoundsProtein Kinase InhibitorsProto-Oncogene MasReceptor, Macrophage Colony-Stimulating FactorRNA InterferenceThiazolesTransfectionConceptsC-fms signalingBreast cancer cellsAntisense oligonucleotide therapyBreast cancerGC stimulationC-fms expressionCancer cellsBreast cancer cell invasionTargeted molecular therapiesHuman breast cancer cellsCo-expressed receptorsAutocrine feedback loopDose-response mannerC-fms mRNAHuman breast carcinoma cellsBreast tumor behaviorReceptor/ligand pairsBreast carcinoma cellsCancer cell invasionInhibition of glucocorticoidsC-fmsAutocrine pathwayClinical utilityParacrine mannerTumor behavior