2010
PIK3CA mutations associated with gene signature of low mTORC1 signaling and better outcomes in estrogen receptor–positive breast cancer
Loi S, Haibe-Kains B, Majjaj S, Lallemand F, Durbecq V, Larsimont D, Gonzalez-Angulo AM, Pusztai L, Symmans WF, Bardelli A, Ellis P, Tutt AN, Gillett CE, Hennessy BT, Mills GB, Phillips WA, Piccart MJ, Speed TP, McArthur GA, Sotiriou C. PIK3CA mutations associated with gene signature of low mTORC1 signaling and better outcomes in estrogen receptor–positive breast cancer. Proceedings Of The National Academy Of Sciences Of The United States Of America 2010, 107: 10208-10213. PMID: 20479250, PMCID: PMC2890442, DOI: 10.1073/pnas.0907011107.Peer-Reviewed Original ResearchMeSH KeywordsAntibiotics, AntineoplasticAntineoplastic Agents, HormonalBase SequenceBreast NeoplasmsCell Line, TumorClass I Phosphatidylinositol 3-KinasesDNA PrimersFemaleGene Expression ProfilingHumansMechanistic Target of Rapamycin Complex 1Multiprotein ComplexesMutationNeoplasms, Hormone-DependentOligonucleotide Array Sequence AnalysisPhosphatidylinositol 3-KinasesPrognosisProteinsProto-Oncogene Proteins c-aktReceptor, ErbB-2Receptors, EstrogenSignal TransductionSirolimusTamoxifenTOR Serine-Threonine KinasesTranscription FactorsConceptsBreast cancerPIK3CA mutationsClinical outcomesEstrogen receptor-positive breast cancerReceptor-positive breast cancerGene signaturePIK3CA mutation statusPI3K/mTOR inhibitorBetter clinical outcomesPI3K/mTOR inhibitionHuman breast cancerBC cell linesPIK3CA mutant breast cancersCommon genetic aberrationsTamoxifen monotherapyBetter prognosisMTOR inhibitorsBetter outcomesMutation statusMTOR inhibitionPathway activationExperimental modelGenetic aberrationsPrognosisCell lines
2009
Correlation of PIK3CA mutation-associated gene expression signature (PIK3CA-GS) with deactivation of the PI3K pathway and with prognosis within the luminal-B ER+ breast cancers
Loi S, Haibe-Kains B, Lallemand F, Pusztai L, Bardelli A, Gillett C, Ellis P, Piccart-Gebhart M, Phillips W, McArthur G, Sotiriou C. Correlation of PIK3CA mutation-associated gene expression signature (PIK3CA-GS) with deactivation of the PI3K pathway and with prognosis within the luminal-B ER+ breast cancers. Journal Of Clinical Oncology 2009, 27: 533-533. DOI: 10.1200/jco.2009.27.15_suppl.533.Peer-Reviewed Original ResearchPI3K pathwayBreast cancerPIK3CA mutationsMutation statusGene expression signaturesK pathwayClinical outcomesLuminal B breast cancerLuminal BC subtypePIK3CA mutation statusBetter clinical outcomesIndependent prognostic informationB breast cancerExpression signaturesPI3K inhibitorsPI3K inhibitionBC cohortDistinct gene expression signaturesEndocrine therapyBC samplesBC subtypesPrognostic informationFavorable outcomeEstrogen receptorMutation carriers