DCC-2036 (Rebastinib)

Cell lines

Ba/F3 cells expressing native or mutant BCRABL1

Preparation method

The solubility of this compound in DMSO is > 27.7 mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below - 20 °C for several months.

Reacting condition

2 ~ 150 nM

Applications

In Ba/F3 cells expressing native BCR-ABL1native, DCC-2036 effectively inhibited cell proliferation with an IC50 value of 5.4 nM. DCC-2036 also potently inhibited Ba/F3 cells expressing BCR-ABL1 mutants that were resistant to Imatinib, Dasatinib (T315A) and Nilotinib (L248R, Y253H, E255V and F359C). In addition, DCC-2036 was effective on the gatekeeper mutant BCR-ABL1T315I (IC50 = 13 nM), on which all three FDA-approved TKIs were ineffective.

Animal models

Mice bearing Ba/F3-BCR-ABL1T315I leukemia cells

Dosage form

100 mg/kg; p.o.

Applications

In mice bearing Ba/F3-BCR-ABL1T315I leukemia cells, a single oral dose of DCC-2036 at 100 mg/kg resulted in a plasma concentration over 12 μM for up to 24 hrs, and effectively inhibited BCR-ABL1 signaling for up to 8 hrs. Treating mice bearing Ba/F3-BCR-ABL1 T315I leukemia cells with DCC-2036 at the dose of 100 mg/kg once daily significantly prolonged their survival.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

References:

[1]. Chan W W, Wise S C, Kaufman M D, et al. Conformational control inhibition of the BCR-ABL1 tyrosine kinase, including the gatekeeper T315I mutant, by the switch-control inhibitor DCC-2036. Cancer cell, 2011, 19(4): 556-568.