Search results for "Farnesyltransferase inhibitor"

showing 2 items of 2 documents

Combination of the novel farnesyltransferase inhibitor RPR130401 and the geranylgeranyltransferase-1 inhibitor GGTI-298 disrupts MAP kinase activatio…

1999

To test the Kirsten-Ras (Ki-Ras) alternative prenylation hypothesis in malignant transformation, we used a novel farnesyltransferase inhibitor competitive to farnesyl-pyrophosphate, RPR130401, and a CaaX peptidomimetic geranylgeranyltransferase-1 inhibitor GGTI-298. In Ki-Ras-overexpressing transformed adrenocortical cells, RPR130401 at 1-10 microM inhibited very efficiently the [(3)H]farnesyl but not [(3)H]geranylgeranyl transfer to Ras. However, proliferation of these cells was only slightly sensitive to RPR130401 (IC(50)=30 microM). GGTI-298 inhibited the growth of these cells with an IC(50) of 11 microM but cell lysis was observed at 15 microM. The combination of 10 microM RPR130401 and…

GeranylgeranyltransferaseFarnesyltransferaseSimvastatinIndolesTime FactorsFarnesyltransferaseBiophysicsProtein PrenylationAntineoplastic AgentsKirsten-RasBiochemistryAnti-proliferative effectS PhasePrenylationStructural BiologyAlternative pathwayAdrenal GlandsGeneticsAnimalsFarnesyltranstransferaseLovastatinBinding siteEnzyme InhibitorsMolecular BiologyCells CulturedCell Line TransformedPrenylationAlkyl and Aryl TransferasesbiologyDose-Response Relationship DrugCell growthFarnesyltransferase inhibitorG1 PhaseG1/S transitionDrug SynergismCell BiologyCell cycleFlow CytometryCell biologyRatsGenes rasBiochemistryMitogen-activated protein kinaseBenzamidesbiology.proteinras ProteinsMitogen-Activated Protein KinasesCell DivisionFEBS letters
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Inhibition of Protein Isoprenylation Impairs Rho-Regulated Early Cellular Response to Genotoxic Stress

2000

Activation of c-Jun N-terminal kinases (JNKs) and nuclear factor-kappaB (NF-kappaB) are early cellular responses to genotoxic stress involved in the regulation of gene expression. Pretreatment of cells with the hydroxymethyl glutaryl-CoA reductase inhibitor lovastatin blocked stimulation of JNK1 activity by UV irradiation and by treatment with the alkylating compound methyl methanesulfonate but did not affect activation of extracellular signal-regulated kinase 2 by UV light. Lovastatin also attenuated UV-induced degradation of the NF-kappaB inhibitor IkappaBalpha. The effects of lovastatin on UV-triggered stimulation of JNK1 as well as on IkappaBalpha degradation were reverted by cotreatmen…

rho GTP-Binding ProteinsProtein PrenylationStimulationClostridium difficile toxin BCHO CellsGenotoxic StressBiologychemistry.chemical_compoundCricetinaemedicineAnimalsHumansMitogen-Activated Protein Kinase 8LovastatinPharmacologyMutagenicity TestsKinaseFarnesyltransferase inhibitorNF-kappa BMethyl methanesulfonateCell biologyIκBαchemistryMolecular MedicineLovastatinHydroxymethylglutaryl-CoA Reductase InhibitorsMitogen-Activated Protein KinasesHeLa CellsSignal Transductionmedicine.drugMolecular Pharmacology
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