| Autor: |
Kévin Berthenet, Eliézer Aïmontché, Sara El Mrini, Johan Brière, Nathalie Pion, Isabelle Iacono, Stéphanie Brejon, Karine Monier, Frédéric Catez, Gabriel Ichim, Valérie Combaret, Hichem C. Mertani, Jean-Jacques Diaz, Marie Alexandra Albaret |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2045-2322 |
| DOI: |
10.1038/s41598-024-54140-7 |
| Popis: |
Abstract Neuroblastoma (NB) is the most common pediatric tumor and is currently treated by several types of therapies including chemotherapies, such as bortezomib treatment. However, resistance to bortezomib is frequently observed by mechanisms that remain to be deciphered. Bortezomib treatment leads to caspase activation and aggresome formation. Using models of patients-derived NB cell lines with different levels of sensitivity to bortezomib, we show that the activated form of caspase 3 accumulates within aggresomes of NB resistant cells leading to an impairment of bortezomib-induced apoptosis and increased cell survival. Our findings unveil a new mechanism of resistance to chemotherapy based on an altered subcellular distribution of the executioner caspase 3. This mechanism could explain the resistance developed in NB patients treated with bortezomib, emphasizing the potential of drugs targeting aggresomes. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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