Caspase 8/10 are not mediating apoptosis in neuroblastoma cells treated with CDK inhibitory drugs
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 inv...
| Authors: | ; ; |
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| Format: | Article |
| Status: | Accepted version |
| Publication date: | 2005 |
| Country: | España |
| Institution: | Universitat de Lleida (UdL) |
| Repository: | Repositori Obert UdL |
| OAI Identifier: | oai:repositori.udl.cat:10459.1/48115 |
| Online Access: | https://doi.org/10.1016/j.ejphar.2005.09.021 http://hdl.handle.net/10459.1/48115 |
| Access Level: | Open access |
| Keyword: | Apoptosis Cell Cycle Caspases Roscovitine Olomoucine Apoptosi Cicle cel·lular Cell cycle |
| Summary: | 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. |
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