Extrinsic pathway- and cathepsin-dependent induction of mitochondrial dysfunction are essential for synergistic flavopiridol and vorinostat lethality in breast cancer cells
Mitchell C, Park MA, Zhang G, Yacoub A, Curiel DT, Fisher PB, Roberts JD, Grant S, Dent P. Extrinsic pathway- and cathepsin-dependent induction of mitochondrial dysfunction are essential for synergistic flavopiridol and vorinostat lethality in breast cancer cells. Molecular Cancer Therapeutics 2007, 6: 3101-3112. PMID: 18065490, DOI: 10.1158/1535-7163.mct-07-0561.Peer-Reviewed Original ResearchConceptsBcl-xLC-FLIPBreast cancer cellsMitogen-activated protein/ERK kinase 1X-chromosome-linked inhibitorCancer cellsExtracellular signal-regulated kinase 1/2Apoptosis protein levelsSignal-regulated kinase 1/2ERK kinase 1CDK inhibitor roscovitineIntrinsic apoptosis pathwayHistone deacetylase inhibitor suberoylanilide hydroxamic acidForm of AktProtease-dependent pathwayInhibition of AktTreatment of cellsBak functionBcl-xL expressionCell killingCyclin-dependent kinase inhibitor flavopiridolInhibitor suberoylanilide hydroxamic acidKinase inhibitor flavopiridolERK1/2 functionAkt activityLow-Dose BBR3610 Toxicity in Colon Cancer Cells Is p53-Independent and Enhanced by Inhibition of Epidermal Growth Factor Receptor (ERBB1)-Phosphatidyl Inositol 3 Kinase Signaling
Mitchell C, Kabolizadeh P, Ryan J, Roberts JD, Yacoub A, Curiel DT, Fisher PB, Hagan MP, Farrell NP, Grant S, Dent P. Low-Dose BBR3610 Toxicity in Colon Cancer Cells Is p53-Independent and Enhanced by Inhibition of Epidermal Growth Factor Receptor (ERBB1)-Phosphatidyl Inositol 3 Kinase Signaling. Molecular Pharmacology 2007, 72: 704-714. PMID: 17578896, DOI: 10.1124/mol.107.038406.Peer-Reviewed Original ResearchConceptsColon cancer cellsEpidermal growth factor receptorGrowth factor receptorActive AktC-FLIPMolecular inhibitionCaspase-8 functionsPhosphatidyl inositol 3 kinaseActivation of BaxDominant-negative AktErbB1 inhibitorsFactor receptorHuman colon cancer cellsOverexpression of XIAPCancer cellsSmall moleculesKinase signalingPI3K inhibitorsAkt activityCaspase-9Bcl-xLNull cellsMcl-1SW480 cellsK-RAS