Here, we discover an FLT3/CHK1 dual inhibitor (30) that exhibits excellent kinase potency and antiproliferative activity against MV4-11 cells. Simultaneously, 30 possesses high selectivity over c-Kit enzyme and low hERG inhibitory ability. Compound 30, meanwhile, overcomes varied resistance in BaF3 cell lines carrying FLT3-TKD and FLT3-ITD mutations. Moreover, 30 demonstrates favorable oral PK properties and kinase selectivity. These conclusions support that compound 30 may be a promising potential FLT3/CHK1 dual agent for further development.
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http://dx.doi.org/10.1039/d3md00597f | DOI Listing |
RSC Med Chem
February 2024
ZJU-ENS Joint Laboratory of Medicinal Chemistry, College of Pharmaceutical Sciences, Zhejiang University Zijingang Campus Hangzhou 310058 P.R. China
J Med Chem
September 2023
ZJU-ENS Joint Laboratory of Medicinal Chemistry, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P.R. China.
FLT3 inhibitors as single agents have limited effects because of acquired and adaptive resistance and the cardiotoxicity related to human ether-a-go-go-related gene (hERG) channel blockade further impedes safe drugs to the market. Inhibitors having potential to overcome resistance and reduce hERG affinity are highly demanded. Here, we reported a dual FLT3/CHK1 inhibitor , which displayed potencies to overcome varying acquired resistance in BaF3 cells with FLT3-TKD and FLT3-ITD-TKD mutations.
View Article and Find Full Text PDFLeukemia
March 2023
Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, 528400, China.
FLT3 inhibitors (FLT3i) are widely used for the treatment of acute myeloid leukemia (AML), but adaptive and acquired resistance remains a primary challenge. Inhibitors simultaneously blocking adaptive and acquired resistance are highly demanded. Here, we observed the potential of CHK1 inhibitors to synergistically improve the therapeutic effect of FLT3i in FLT3-mutated AML cells.
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