Caspase 8/10 are not mediating apoptosis in neuroblastoma cells treated with CDK inhibitory drugs
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Olomoucine and Roscovitine are pharmacological inhibitors of cyclin-dependent kinases (CDK) displaying a promising profile as anticancer agents. Both compounds are effective inductors of apoptosis in a human neuroblastoma cell line, SH-SY5Y. The characterization of this process had suggested the involvement of an extrinsic pathway [Ribas, J., Boix, J., 2004. Cell differentiation, Caspase inhibition, and macromolecular synthesis blockage, but not Bcl-2 or Bcl-XL proteins, protect SH-SY5Y cells from apoptosis triggered by two CDK inhibitory drugs. Exp. Cell Res. 295 9<br>24.], which depends on either Caspase 8 or Caspase 10 activation. However, neither Caspase 8 nor Caspase 10 is expressed in SH- SY5Y cells because of gene silencing. Upon Olomoucine or Roscovitine treatment, no re-expression of Caspase 8 or Caspase 10 was found. Therefore, in SH-SY5Y cells, this type of drugs is not triggering a canonical, Caspase 8/10-mediated, extrinsic apoptotic pathway. © 2005 Elsevier B.V. All rights reserved.
Is part ofEuropean Journal of Pharmacology, 2005, vol. 524, num. 1-3, p. 49-52
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Cell differentiation, caspase inhibition and macromolecular synthesis blockage, but not Bcl-2 or Bcl-XL proteins, protect SH-SY5Y cells from apoptosis triggered by two cdk inhibitory drugs. Ribas i Fortuny, Judit; Boix Torras, Jacint (Elsevier, 2004)Olomoucine and Roscovitine are two ATP-competing compounds described as specific inhibitors of cyclin-dependent kinases (CDK). Both drugs showed to induce apoptosis in SH-SY5Y, a neuroblastoma-derived cell line. In these ...
Garrofé Ochoa, Xènia; Melero Fernández de Mera, Raquel M; Fernández Gómez, Francisco J.; Ribas i Fortuny, Judit; Jordán Bueso, Joaquín; Boix Torras, Jacint (American Association for Cancer Research, 2008)In previous reports we have shown in SH-SY5 cells that Olomoucine and Roscovitine, two inhibitory drugs of Cyclin Dependent Kinases, caused apoptosis independent of the extrinsic pathway. In this experimental paradigm, ...
Garrofé Ochoa, Xènia; Cosialls, Ana M; Ribas i Fortuny, Judit; Gil, Joan; Boix Torras, Jacint (Springer Science Business Media, 2011)Chemical inhibitors of cyclin-dependent kinase (CDK), like roscovitine, are promising drugs in thecontext of new cancer therapies. Roscovitine and related compounds, like seliciclib and olomoucine, are effective inducers ...