TAK-659 hydrochloride 

TAK-659 hydrochloride is a highly potent, selective, reversible and orally available dual inhibitor of spleen tyrosine kinase (SYK) and fms related tyrosine kinase 3 (FLT3), with an IC₅₀ of 3.2 nM and 4.6 nM for SYK and FLT3, respectively. TAK-659 hydrochloride induces cell death in tumor cells but not in nontumor cells, and with potential for the treatment of chronic lymphocytic leukemia (CLL)^[1][2][3][4].

IC50: 3.2 nM (Syk), 4.6 nM (FLT3)^[1]

TAK-659 hydrochloride inhibits cellular proliferation in SYK-dependent DLBCL and FLT3-dependent AML cell lines^[1][3].
TAK-659 hydrochloride (5 µM; 1-24 hours) induces Casp3 activation in the LMP2A/MYC cells which was readily apparent at 4 h and reached maximum levels at 8 h of treatment^[4].
TAK-659 hydrochloride (0.01-10 μM; 1 hour) stimulates expression of phospho-Syk at Tyr525 and Tyr352 and phospho-ERK1/2 increased in Ramos cells^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

TAK-659 hydrochloride (100 mg/kg/day; p.o.; daily, for 10 days) treatment totally abrogates splenomegaly and tumor development in LMP2A/MYC mice in both pretumor and tumor cell transfer experiments^[4].
TAK-659 hydrochloride treatment kills tumor cells, but not host cells within the spleen and tumors^[4].
TAK-659 hydrochloride treatment abrogates metastasis of tumor cells into bone marrow^[4].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

380.85

C₁₇H₂₂ClFN₆O

1952251-28-3

Solid

White to off-white

FC1=C(N[C@@H]2CCCC[C@@H]2N)N=C(C3=CN(C)N=C3)C4=C1CNC4=O.Cl

Room temperature in continental US; may vary elsewhere.

4°C, stored under nitrogen, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen, away from moisture)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (stored under nitrogen, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

• [1]. Lam B, et al. Discovery of TAK-659 an orally available investigational inhibitor of Spleen Tyrosine Kinase (SYK). Bioorg Med Chem Lett. 2016 Dec 15;26(24):5947-5950.  [Content Brief]

  [2]. Purroy N, et al. Inhibition of BCR signaling using the Syk inhibitor TAK-659 prevents stroma-mediated signaling in chronic lymphocytic leukemia cells. Oncotarget. 2017 Jan 3;8(1):742-756.  [Content Brief]

  [3]. Jie Yu, et al. Anti-tumor activity of TAK-659, a dual inhibitor of SYK and FLT-3 kinases, in AML models. Journal of Clinical Oncology 34, no. 15_suppl.

  [4]. Cen O, et al. Spleen Tyrosine Kinase Inhibitor TAK-659 Prevents Splenomegaly and Tumor Development in a Murine Model of Epstein-Barr Virus-Associated Lymphoma. mSphere. 2018 Aug 22;3(4).  [Content Brief]