2014
Identification of PLX4032‐resistance mechanisms and implications for novel RAF inhibitors
Choi J, Landrette SF, Wang T, Evans P, Bacchiocchi A, Bjornson R, Cheng E, Stiegler AL, Gathiaka S, Acevedo O, Boggon TJ, Krauthammer M, Halaban R, Xu T. Identification of PLX4032‐resistance mechanisms and implications for novel RAF inhibitors. Pigment Cell & Melanoma Research 2014, 27: 253-262. PMID: 24283590, PMCID: PMC4065135, DOI: 10.1111/pcmr.12197.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceCell Line, TumorCell ProliferationDNA Transposable ElementsDrug Resistance, NeoplasmHumansIndolesMAP Kinase Signaling SystemMelanomaModels, MolecularMolecular Sequence DataMutagenesis, InsertionalMutant ProteinsMutationProtein Kinase InhibitorsProto-Oncogene Proteins B-rafSulfonamidesVemurafenibConceptsBRAF mutationsNovel BRAF mutationBRAF inhibitorsNext-generation BRAF inhibitorsPLX4032-resistant melanoma cellsMelanoma cellsMelanoma patient survivalHuman prostate cancerBRAF mutant cellsWhole-exome sequencingMelanoma patientsPatient survivalClinical trialsProstate cancerRAF inhibitorsOncogenic mutationsNew screening approachRelevant aberrationsInhibitorsCellsMutationsScreening approachNovel RAF inhibitorsPatientsPLX8394
2012
Preexisting MEK1 Exon 3 Mutations in V600E/KBRAF Melanomas Do Not Confer Resistance to BRAF Inhibitors
Shi H, Moriceau G, Kong X, Koya RC, Nazarian R, Pupo GM, Bacchiocchi A, Dahlman KB, Chmielowski B, Sosman JA, Halaban R, Kefford RF, Long GV, Ribas A, Lo RS. Preexisting MEK1 Exon 3 Mutations in V600E/KBRAF Melanomas Do Not Confer Resistance to BRAF Inhibitors. Cancer Discovery 2012, 2: 414-424. PMID: 22588879, PMCID: PMC3594852, DOI: 10.1158/2159-8290.cd-12-0022.Peer-Reviewed Original ResearchConceptsBRAF inhibitorsActivating mutationsObjective tumor responseMEK1/2 inhibitorMEK1 mutationsP-ERK1/2 levelsBRAF-mutant melanomaMelanoma cell linesAdvanced melanomaAntitumor responseExon 3 mutationsTumor responseDisease progressionMelanomaBRAFi resistanceDrug sensitivitySignificant alterationsPatientsCell linesInhibitorsBaselineMutationsExon 3Widespread use
2010
Incidence of the V600K mutation among melanoma patients with BRAF mutations, and potential therapeutic response to the specific BRAF inhibitor PLX4032
Rubinstein JC, Sznol M, Pavlick AC, Ariyan S, Cheng E, Bacchiocchi A, Kluger HM, Narayan D, Halaban R. Incidence of the V600K mutation among melanoma patients with BRAF mutations, and potential therapeutic response to the specific BRAF inhibitor PLX4032. Journal Of Translational Medicine 2010, 8: 67. PMID: 20630094, PMCID: PMC2917408, DOI: 10.1186/1479-5876-8-67.Peer-Reviewed Original ResearchConceptsV600K mutationsClinical trialsBRAF V600E/K mutationK mutationPotential therapeutic responseMutant BRAF inhibitorsBRAF inhibitor PLX4032BRAF V600K mutationMelanoma patientsTherapeutic responseBRAF mutationsPatientsV600E mutationInhibitor PLX4032BRAF kinasePLX4032TrialsCommon mutationsMutationsMelanomaIncidencePLX4032, a selective BRAFV600E kinase inhibitor, activates the ERK pathway and enhances cell migration and proliferation of BRAFWT melanoma cells
Halaban R, Zhang W, Bacchiocchi A, Cheng E, Parisi F, Ariyan S, Krauthammer M, McCusker JP, Kluger Y, Sznol M. PLX4032, a selective BRAFV600E kinase inhibitor, activates the ERK pathway and enhances cell migration and proliferation of BRAFWT melanoma cells. Pigment Cell & Melanoma Research 2010, 23: 190-200. PMID: 20149136, PMCID: PMC2848976, DOI: 10.1111/j.1755-148x.2010.00685.x.Peer-Reviewed Original ResearchConceptsMelanoma cellsTumor cellsMelanoma tumor cellsPrimary melanoma cellsMetastatic tumor cellsStatus of mutationsClinical responseRate of proliferationAdvanced lesionsInhibitor PLX4032Kinase inhibitorsPLX4032ERK pathwayCell migrationNRASDownstream effectorsCell adherenceERK1/2CellsProliferationCell cycle controlMobility of cellsActive ERK1/2Therapy