p53 and autophagy contribute to dasatinib resistance in primary CLL lymphocytes
- PMID: 20573397
- DOI: 10.1016/j.leukres.2010.05.029
p53 and autophagy contribute to dasatinib resistance in primary CLL lymphocytes
Abstract
B-cell chronic lymphocytic leukemia (CLL) is the most common leukemia in adults and there is no cure for the disease. Although dasatinib is cytotoxic to primary CLL lymphocytes in vitro, the drug has been shown to be active in a small percent of CLL patients. Our previous results suggest that dasatinib targets del17 CLL lymphocytes which are the CLL patients with the worst prognosis. Here we present mechanistic evidence that dasatinib induces endoplasmic reticulum stress and autophagy in CLL lymphocytes. Furthermore we provide evidence suggesting that autophagy mediates resistance to the drugs, process that is modulated by p53.
Copyright © 2010 Elsevier Ltd. All rights reserved.
Comment in
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The role of p53 and autophagy in Dasatinib resistance of CLL lymphocytes.Leuk Res. 2011 Jan;35(1):32-3. doi: 10.1016/j.leukres.2010.07.007. Epub 2010 Jul 31. Leuk Res. 2011. PMID: 20674019 No abstract available.
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On the assessment of dasatinib-induced autophagy in CLL.Leuk Res. 2011 Jan;35(1):137-8. doi: 10.1016/j.leukres.2010.09.012. Epub 2010 Oct 14. Leuk Res. 2011. PMID: 20947165 No abstract available.
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