| Autor: |
Tomáš, Gucký, Eva, Řezníčková, Tereza, Radošová Muchová, Radek, Jorda, Zuzana, Klejová, Veronika, Malínková, Karel, Berka, Václav, Bazgier, Haresh, Ajani, Martin, Lepšík, Vladimír, Divoký, Vladimír, Kryštof |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Journal of medicinal chemistry. 61(9) |
| ISSN: |
1520-4804 |
| Popis: |
FLT3 tyrosine kinase is a potential drug target in acute myeloid leukemia (AML) because patients with FLT3-ITD mutations respond poorly to standard cytotoxic agents and there is a clear link between the disease and the oncogenic properties of FLT3. We present novel 2,6,9-trisubstituted purine derivatives with potent FLT3 inhibitory activity. The lead compound 7d displays nanomolar activity in biochemical assays and selectively blocks proliferation of AML cell lines harboring FLT3-ITD mutations, whereas other transformed and normal human cells are several orders of magnitude less sensitive. The MV4-11 cells treated with 7d suppressed the phosphorylation of FLT3 and its downstream signaling pathways, with subsequent G1 cell cycle arrest and apoptosis. Additionally, a single dose of 7d in mice with subcutaneous MV4-11 xenografts caused sustained inhibition of FLT3 and STAT5 phosphorylation over 48 h, in contrast to the shorter effect observed after administration of the reference FLT3 inhibitor quizartinib. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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