Search results for "roscovitine"

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R-Roscovitine (Seliciclib) prevents DNA damage-induced cyclin A1 upregulation and hinders non-homologous end-joining (NHEJ) DNA repair.

2010

Abstract Background CDK-inhibitors can diminish transcriptional levels of cell cycle-related cyclins through the inhibition of E2F family members and CDK7 and 9. Cyclin A1, an E2F-independent cyclin, is strongly upregulated under genotoxic conditions and functionally was shown to increase NHEJ activity. Cyclin A1 outcompetes with cyclin A2 for CDK2 binding, possibly redirecting its activity towards DNA repair. To see if we could therapeutically block this switch, we analyzed the effects of the CDK-inhibitor R-Roscovitine on the expression levels of cyclin A1 under genotoxic stress and observed subsequent DNA damage and repair mechanisms. Results We found that R-Roscovitine alone was unable …

Cancer ResearchDNA RepairDNA repairDNA damageSettore MED/06 - Oncologia MedicaCyclin DCyclin ACyclin BSettore BIO/11 - Biologia Molecolarelcsh:RC254-282RoscovitineProtein Kinase InhibitorsBIO/10 Biochimicaroscovitine doxorubicinbiologyResearchCyclin A1; Doxorubicin; Protein Kinase Inhibitors; Purines; Up-Regulation; DNA Damage; DNA Repair; Hydrogen-Ion Concentration; Cancer Research; Molecular Medicine; OncologyG2-M DNA damage checkpointHydrogen-Ion Concentrationlcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensUp-RegulationOncologyDoxorubicinPurinesCancer researchbiology.proteinMolecular MedicineCyclin A1biological phenomena cell phenomena and immunityCyclin A1Cyclin A2DNA DamageMolecular cancer
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