Title : Evaluation of bioactive sphingolipids in 4-HPR-resistant leukemia cells.

Pub. Date : 2011 Nov 7

PMID : 22061047






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1 Evaluation of bioactive sphingolipids in 4-HPR-resistant leukemia cells. Sphingolipids haptoglobin-related protein Homo sapiens
2 Ceramide and, more recently, other sphingolipid species (e.g., dihydroceramide and dihydrosphingosine) have been implicated in 4-HPR-mediated tumor cell death. Sphingolipids haptoglobin-related protein Homo sapiens
3 Because sphingolipid metabolism has been reported to be altered in drug-resistant tumor cells, we studied the implication of sphingolipids in acquired resistance to 4-HPR based on an acute lymphoblastic leukemia model. Sphingolipids haptoglobin-related protein Homo sapiens
4 CCRF-CEM cell lines resistant to 4-HPR exhibited a distinctive endogenous sphingolipid profile that correlated with inhibition of dihydroceramide desaturase. Sphingolipids haptoglobin-related protein Homo sapiens
5 Therapeutically, the data demonstrate that alternative sphingolipid-modulating antitumoral strategies are suitable for both 4-HPR-resistant and sensitive leukemia cells. Sphingolipids haptoglobin-related protein Homo sapiens