Article
Sphingosine-1-phosphate receptor modulators resensitize FLT3-ITD acute myeloid leukemia cells with NRAS mutations to FLT3 inhibitors.
Leukemia - 1 Aug 2026
Chatterjee Aditi, Mustafa Ali Moaath K, Bailey Christopher M, Liu Yuchen, Small Donald, Smith Catherine C, Traer Elie, Wang Yin, Silvestri Giovannino, Baer Maria R
Abstract excerpt
FLT3 inhibitor efficacy in AML with FLT3-ITD is short-lived, frequently due to new mutations, most commonly in NRAS. Sphingosine kinase 1 (SPHK1), which phosphorylates sphingosine to generate sphingosine-1-phosphate (S1P), is upregulated and localized to the plasma membrane in RAS-mutated cells. We studied S1P and FLT3 co-targeting to overcome FLT3 inhibitor resistance in NRAS-mutated FLT3-ITD AML cells....
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