2016
Oncogenic EGFR Represses the TET1 DNA Demethylase to Induce Silencing of Tumor Suppressors in Cancer Cells
Forloni M, Gupta R, Nagarajan A, Sun LS, Dong Y, Pirazzoli V, Toki M, Wurtz A, Melnick MA, Kobayashi S, Homer RJ, Rimm DL, Gettinger SJ, Politi K, Dogra SK, Wajapeyee N. Oncogenic EGFR Represses the TET1 DNA Demethylase to Induce Silencing of Tumor Suppressors in Cancer Cells. Cell Reports 2016, 16: 457-471. PMID: 27346347, PMCID: PMC4945411, DOI: 10.1016/j.celrep.2016.05.087.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdenocarcinoma of LungAntineoplastic AgentsBrain NeoplasmsCCAAT-Enhancer-Binding ProteinsCell Line, TumorCpG IslandsDNA MethylationDrug Screening Assays, AntitumorErbB ReceptorsGene Expression Regulation, NeoplasticGene SilencingGlioblastomaHumansLung NeoplasmsMAP Kinase Signaling SystemMixed Function OxygenasesMutationOncogenesProtein Kinase InhibitorsProto-Oncogene ProteinsTranscription, GeneticTumor Suppressor ProteinsUp-RegulationConceptsOncogenic epidermal growth factor receptorMethylation-mediated transcriptional silencingEpidermal growth factor receptorTumor suppressorTranscriptional silencingActive DNA demethylationCancer cellsFamily member 1TET1 knockdownDNA demethylaseDNA demethylationTranscription factorsGrowth factor receptorEctopic expressionCytoplasmic localizationGlioblastoma tumor growthLung cancer cellsTET1 expressionFunctional roleSuppressorFactor receptorMember 1TET1SilencingLung cancer samples
2014
Acquired Resistance of EGFR-Mutant Lung Adenocarcinomas to Afatinib plus Cetuximab Is Associated with Activation of mTORC1
Pirazzoli V, Nebhan C, Song X, Wurtz A, Walther Z, Cai G, Zhao Z, Jia P, de Stanchina E, Shapiro EM, Gale M, Yin R, Horn L, Carbone DP, Stephens PJ, Miller V, Gettinger S, Pao W, Politi K. Acquired Resistance of EGFR-Mutant Lung Adenocarcinomas to Afatinib plus Cetuximab Is Associated with Activation of mTORC1. Cell Reports 2014, 7: 999-1008. PMID: 24813888, PMCID: PMC4074596, DOI: 10.1016/j.celrep.2014.04.014.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdenocarcinoma of LungAfatinibAnimalsAntibodies, Monoclonal, HumanizedAntineoplastic Combined Chemotherapy ProtocolsCell Line, TumorCetuximabDrug Resistance, NeoplasmErbB ReceptorsHumansLung NeoplasmsMechanistic Target of Rapamycin Complex 1MiceMice, NudeMice, TransgenicMultiprotein ComplexesMutationQuinazolinesRandom AllocationTOR Serine-Threonine KinasesXenograft Model Antitumor AssaysConceptsTyrosine kinase inhibitorsFirst-generation tyrosine kinase inhibitorEGFR-mutant lung adenocarcinomaLung adenocarcinomaMechanisms of resistanceEGFR antibody cetuximabPotential therapeutic strategyBiopsy specimensAntibody cetuximabDrug combinationsMouse modelTherapeutic strategiesAfatinibAddition of rapamycinCetuximabDual inhibitionAcquired ResistanceKinase inhibitorsGenomic alterationsAdenocarcinomaPatientsActivationGenomic mechanismsDrugsMTORC1 activationReduced NF1 Expression Confers Resistance to EGFR Inhibition in Lung Cancer
de Bruin EC, Cowell C, Warne PH, Jiang M, Saunders RE, Melnick MA, Gettinger S, Walther Z, Wurtz A, Heynen GJ, Heideman DA, Gómez-Román J, García-Castaño A, Gong Y, Ladanyi M, Varmus H, Bernards R, Smit EF, Politi K, Downward J. Reduced NF1 Expression Confers Resistance to EGFR Inhibition in Lung Cancer. Cancer Discovery 2014, 4: 606-619. PMID: 24535670, PMCID: PMC4011693, DOI: 10.1158/2159-8290.cd-13-0741.Peer-Reviewed Original ResearchConceptsLung cancerMAP-ERK kinase (MEK) inhibitorsEGF receptorEGFR-mutant lung adenocarcinomaKinase inhibitorsHuman lung cancer cell linesResistance of lungSubgroup of patientsLung cancer cell linesCancer cell linesClinical responsivenessCombination therapyEGFR-TKIEGFR mutationsErlotinib resistanceLung adenocarcinomaRAS-ERK signalingEGFR inhibitionMEK inhibitorsErlotinibReduced expressionNF1 expressionPatientsCell linesNeurofibromin levels