| Bioactivity | Tuspetinib (HM43239) is an orally active and selective FLT3 inhibitor with IC50s of 1.1 nM, 1.8 nM and 1.0 nM for FLT3 WT, FLT3 internal tandem duplication (ITD) and FLT3 D835Y kinases, respectively. Tuspetinib inhibits the kinase activity of FLT3 as a reversible type I inhibitor and modulates p-STAT5, p-ERK, SYK, JAK1/2, and TAK1. Tuspetinib inhibits the proliferation and induces the apoptosis of leukemic cells[1][2][3]. |
| Invitro | Tuspetinib potently inhibits the growth of acute myeloid leukemia cell lines harboring FLT3 ITD mutation, such as MV4-11 (IC50: 1.3 nM), MOLM-13 (IC50: 5.1 nM), and MOLM-14 (IC50: 2.9 nM). Tuspetinib also inhibits KG1a cells (CD34+/CD38- cells) proliferation[1].Tuspetinib induces the caspase 3/7-dependent apoptosis of leukemic stem cell (LSC) marker-expressing KG1a cells (CD34+/CD38- cells)[1]. Tuspetinib potently inhibits phosphorylation of SYK, STAT3, and STAT5 in KG1a cells[3]. |
| Name | Tuspetinib |
| CAS | 2294874-49-8 |
| Formula | C29H33ClN6 |
| Molar Mass | 501.07 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | 4°C, protect from light *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light) |
Tuspetinib
CAS: 2294874-49-8 F: C29H33ClN6 W: 501.07
Tuspetinib (HM43239) is an orally active and selective FLT3 inhibitor with IC50s of 1.1 nM, 1.8 nM and 1.0 nM for FLT3 W
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