2015
PIK3CAH1047R- and Her2-initiated mammary tumors escape PI3K dependency by compensatory activation of MEK-ERK signaling
Cheng H, Liu P, Ohlson C, Xu E, Symonds L, Isabella A, Muller WJ, Lin NU, Krop IE, Roberts TM, Winer EP, Arteaga CL, Zhao JJ. PIK3CAH1047R- and Her2-initiated mammary tumors escape PI3K dependency by compensatory activation of MEK-ERK signaling. Oncogene 2015, 35: 2961-2970. PMID: 26640141, PMCID: PMC4896860, DOI: 10.1038/onc.2015.377.Peer-Reviewed Original ResearchConceptsBreast cancerPIK3CA mutationsMammary tumorsHER2 amplification/overexpressionHER2-positive breast cancerHER2-positive cancersPrimary mammary tumorsHER2/HER3PIK3CA-activating mutationsHER2/neuHuman breast cancerEffective treatment approachAmplification/overexpressionCompound mouse modelMEK-ERK signalingMouse mammary glandWorse prognosisCombination therapyMammary tumorigenesisMouse modelMutant PIK3CATreatment approachesHER2Combined inhibitionCompensatory activation
2014
Phosphorylation of ETS1 by Src Family Kinases Prevents Its Recognition by the COP1 Tumor Suppressor
Lu G, Zhang Q, Huang Y, Song J, Tomaino R, Ehrenberger T, Lim E, Liu W, Bronson RT, Bowden M, Brock J, Krop IE, Dillon DA, Gygi SP, Mills GB, Richardson AL, Signoretti S, Yaffe MB, Kaelin WG. Phosphorylation of ETS1 by Src Family Kinases Prevents Its Recognition by the COP1 Tumor Suppressor. Cancer Cell 2014, 26: 222-234. PMID: 25117710, PMCID: PMC4169234, DOI: 10.1016/j.ccr.2014.06.026.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBinding SitesFemaleHCT116 CellsHEK293 CellsHumansMiceMice, Inbred NODMice, SCIDMolecular Sequence DataNeoplasm TransplantationPhosphorylationProtein BindingProto-Oncogene Protein c-ets-1Proto-Oncogene Protein c-ets-2Src-Family KinasesTriple Negative Breast NeoplasmsTumor BurdenUbiquitinationUbiquitin-Protein LigasesConceptsSrc family kinasesFamily kinasesTumor suppressorPhosphorylation of ETS1Ubiquitin ligase componentTumor suppressor proteinAnchorage-independent growthNeighboring tyrosine residueCOP1 substratesRegulatory phosphorylationSpecific serineThreonine residuesSrc familySuppressor proteinTyrosine residuesETS1Breast cancer cellsPhosphorylationCancer cellsNeoplastic growthKinaseSuppressorProteinOncoproteinResidues