2017
Inhibition of PI3K suppresses propagation of drug-tolerant cancer cell subpopulations enriched by 5-fluorouracil
Ishida K, Ito C, Ohmori Y, Kume K, Sato KA, Koizumi Y, Konta A, Iwaya T, Nukatsuka M, Kobunai T, Takechi T, Nishizuka SS. Inhibition of PI3K suppresses propagation of drug-tolerant cancer cell subpopulations enriched by 5-fluorouracil. Scientific Reports 2017, 7: 2262. PMID: 28536445, PMCID: PMC5442158, DOI: 10.1038/s41598-017-02548-9.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntimetabolites, AntineoplasticCell Line, TumorCell ProliferationClass I Phosphatidylinositol 3-KinasesCodonDisease Models, AnimalDose-Response Relationship, DrugDrug Resistance, NeoplasmFluorouracilGenetic VariationHeterograftsHumansMiceNeoplasmsPhenotypePhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsPhosphorylationProteomeProteomicsRibosomal Protein S6 Kinases, 90-kDaSignal TransductionConceptsOrthotopic xenograftsCancer cell subpopulationsCell subpopulationsGastric cancer cell line MKN45Gastric cancer chemotherapyRibosomal S6 kinase phosphorylationPI3K inhibitorsDisease relapseSequential administrationS6 kinase phosphorylationNude miceTumor propagationCancer chemotherapyK inhibitorsXenograftsPI3KChemotherapyRelapseTolerant subpopulationSubpopulationsKinase phosphorylationAdministrationCellsPhosphorylated phosphatidylinositidesMice
2015
Systematic Protein Level Regulation via Degradation Machinery Induced by Genotoxic Drugs
Kume K, Ishida K, Ikeda M, Takemoto K, Shimura T, Young L, Nishizuka SS. Systematic Protein Level Regulation via Degradation Machinery Induced by Genotoxic Drugs. Journal Of Proteome Research 2015, 15: 205-215. PMID: 26625007, DOI: 10.1021/acs.jproteome.5b00759.Peer-Reviewed Original ResearchConceptsDegradation machineryGenotoxic drugsProtein dynamicsProtein-level regulationProtein degradation systemProtein levelsDistinct proteinsApoptosis-related proteinsDegradation systemProtein arraysProteinLevel regulationProteasome inhibitorsMachineryComprehensive insightRegulationMG132Similar dynamicsPairsInhibitorsDynamicsDifferent concentrationsResponseSimilarityLevels