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Bafetinib Bcr-Abl inhibitor

Cat.No.S1369

Bafetinib is a potent and selective dual Bcr-Abl/Lyn inhibitor with IC50 of 5.8 nM/19 nM in cell-free assays, does not inhibit the phosphorylation of the T315I mutant and is less potent to PDGFR and c-Kit.
Bafetinib Bcr-Abl inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 576.62

Quality Control

Chemical Information, Storage & Stability

Molecular Weight 576.62 Formula

C30H31F3N8O

Storage (From the date of receipt)
CAS No. 859212-16-1 Download SDF Download SDF Storage of Stock Solutions

Synonyms INNO-406, NS-187 Smiles CC1=C(C=C(C=C1)NC(=O)C2=CC(=C(C=C2)CN3CCC(C3)N(C)C)C(F)(F)F)NC4=NC=CC(=N4)C5=CN=CN=C5

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (173.42 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight

In vivo
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In vivo Formulation Calculator (Clear solution)

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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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Mechanism of Action

Features
Dual Bcr-Abl/Lyn inhibitor.
Targets/IC50/Ki
Abl [1]
(Cell-free assay)
5.8 nM
Lyn [1]
(Cell-free assay)
19 nM
In vitro

Bafetinib blocks WT Bcr-Abl autophosphorylation and its downstream kinase activity with IC50 of 11 nM and 22 nM in K562 and 293T cells, respectively. This compound suppresses the growth of the Bcr-Abl-positive cell lines including K562, KU812, and BaF3/wt cells potently without effects on the proliferation of the Bcr-Abl-negative U937 cell line. Moreover, it exhibits a dose-dependent antiproliferative effect against Bcr-Abl point mutant cell lines, such as BaF3/E255K cells. [1] In Bcr-Abl+ leukemia cell lines, this chemical induces both caspase-mediated and caspase-independent cell death by blocking the phosphorylation of Bcr-Abl. [2]

Kinase Assay
Kinase assay
Bcr-Abl kinase assays are performed in 25 μL of reaction mixture containing 250 μM peptide substrate, 740 Bq/μL [γ-33P]ATP, and 20 μM cold adenosine triphosphate (ATP) by using the SignaTECT protein tyrosine kinase assay system. Each Bcr-Abl kinase is used at a concentration of 10 nM. Kinase assays for Abl, Src, and Lyn are carried out with an enzyme-linked immunosorbent assay (ELISA) kit. The inhibitory effects of this compound against 79 tyrosine kinases are tested with KinaseProfiler.
In vivo

In Bcr-Abl–positive KU812 mouse model, Bafetinib (0.2 mg/kg/day) significantly inhibits tumor growth, and completely inhibits tumor growth without adverse effects at 20 mg/kg/day. For Balb/c mice, this compound shows maximal tolerated dose of 200 mg/kg/d and bioavailability value (BA) of 32%. [1] In a Central nervous system (CNS) leukemia model bearing Ba/F3/wt bcr-ablGFP, Ba/F3/Q252H, or Ba/F3/M351T cells, combination treatment of this chemical (60 mg/kg) and CsA (50 mg/kg) leads to more significant inhibition of leukemia growth in the brain than either this compound or CsA alone. [3]

References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT00352677 Completed
Chronic Myeloid Leukemia|Acute Lymphocytic Leukemia
CytRx
July 2006 Phase 1

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Frequently Asked Questions

Question 1:
Can you suggest the route of in vivo administration for it?

Answer:
It is fine for oral gavage when suspended in 0.5% methylcellulose+0.2% Tween 80 at 30mg/ml. If you dissolved this compound in 0.5% methyl cellulose and got a suspension, it is fine. And 0.2% Tween 80 can help the suspension dissolving more homogeneous.

Signaling Pathway Map