1. Protein Tyrosine Kinase/RTK
    Apoptosis
  2. Bcr-Abl
    FLT3
    Src
    Apoptosis
  3. Rebastinib

Rebastinib (Synonyms: DCC-2036)

Cat. No.: HY-13024 Purity: 99.91%
Handling Instructions

Rebastinib (DCC-2036) is an orally active, non-ATP-competitive Bcr-Abl inhibitor for Abl1WT and Abl1T315I with IC50s of 0.8 nM and 4 nM, respectively. Rebastinib also inhibits SRC, KDR, FLT3, and Tie-2, and has low activity to seen towards c-Kit.

For research use only. We do not sell to patients.

Rebastinib Chemical Structure

Rebastinib Chemical Structure

CAS No. : 1020172-07-9

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Solution
10 mM * 1 mL in DMSO USD 85 In-stock
Estimated Time of Arrival: December 31
Solid + Solvent
10 mM * 1 mL
ready for reconstitution
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Estimated Time of Arrival: December 31
Solid
5 mg USD 70 In-stock
Estimated Time of Arrival: December 31
10 mg USD 120 In-stock
Estimated Time of Arrival: December 31
50 mg USD 290 In-stock
Estimated Time of Arrival: December 31
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Customer Review

Based on 4 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Rebastinib (DCC-2036) is an orally active, non-ATP-competitive Bcr-Abl inhibitor for Abl1WT and Abl1T315I with IC50s of 0.8 nM and 4 nM, respectively. Rebastinib also inhibits SRC, KDR, FLT3, and Tie-2, and has low activity to seen towards c-Kit.

IC50 & Target

IC50: 0.75±0.11 nM (ABL1WT), 2±0.3 nM (FLT3), 4±0.3 nM (KDR), 6±0.3 nM (TIE2), 34±6 nM (SRC)[1]

In Vitro

Rebastinib potently (IC50 0.82 nM) inhibits u-ABL1native, which is thought to exist predominantly in the inactive type II conformation. In addition, Rebastinib also strongly inhibits p-ABL1native (IC50 2 nM), which more readily adopts an active, Type I conformation[1].
Rebastinib potently inhibits both u-ABL1T315I (IC50 5 nM) and p-ABL1T315I (IC50 4 nM), both of which exist predominately in the Type I conformation due to stabilization of an activating hydrophobic spine by the T315I mutation[1].
In addition to ABL1, Rebastinib also inhibits the SRC family kinases LYN, SRC, FGR, and HCK, and PDGFRα, and PDGFRβ with IC50 of 29±1, 34±6, 38±1, 40±1, 70±10 and 113±10 nM, respectively. Notably, Rebastinib spared c-KIT (IC50 481 nM)[1].
Rebastinib effectively inhibits the proliferation of Ba/F3 cells expressing native BCR-ABL1native (IC50 5.4 nM). Rebastinib also inhibits proliferation of the Ph+ cell line K562 (IC50 5.5 nM)[1].
Rebastinib also inhibits proliferation of several common TKI-resistant mutants of BCR-ABL1, including G250E, Q252H, Y235F, E255K, V299L, F317L, and M351T, at IC50s ranging from 6-150 nM. Rebastinib effectively inhibits autophosphorylation of BCR-ABL1native (IC50 29 nM) and BCR-ABL1T315I (IC50 18 nM), as well as the phosphorylation of STAT5 in both cell lines (IC50 28 nM and 13 nM, respectively)[1].

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

In Vivo

A single dose of Rebastinib (DCC-2036; oral; 100 mg/kg) affords circulating plasma levels that exceeds 12 μM for up to 24 hours, and effectively inhibits BCR-ABL1 signaling for up to 8 hours in Ba/F3-BCR-ABL1T315I leukemia cells isolated from BM and spleen of tumor-bearing mice[1].
Treatment of mice bearing Ba/F3-BCR-ABL1T315I leukemia cells with Rebastinib at 100 mg/kg once daily by oral gavage significantly prolonged their survival, while STI571 at 100 mg/kg twice daily is ineffective[1].
In this aggressive allograft model, Rebastinib is as effective for treatment of BCR-ABLT315I leukemia as STI571 at 100 mg/kg twice daily in BCR-ABL1native leukemia, and reduces the leukemia cell burden in the spleens of treated mice[1].

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

Clinical Trial
Molecular Weight

553.59

Formula

C₃₀H₂₈FN₇O₃

CAS No.
Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (90.32 mM; ultrasonic and warming and heat to 80°C)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.8064 mL 9.0320 mL 18.0639 mL
5 mM 0.3613 mL 1.8064 mL 3.6128 mL
10 mM 0.1806 mL 0.9032 mL 1.8064 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.08 mg/mL (3.76 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.08 mg/mL (3.76 mM); Clear solution

*All of the co-solvents are provided by MCE.
References
Cell Assay
[1]

Ba/F3 cells (3×103 cells/well) or primary Ph+ leukemia cells (5×104 cells/well) are plated in triplicate in 96-well plates containing test compounds (e.g., Rebastinib (DCC-2036)). After 72h, viable cells are quantified by resazurin or MTT assay. Results represent an average of at least three independent experiments[1].

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

Animal Administration
[1]

Mice[1]
Ba/F3 cells (1×106) transformed to interleukin-3 independence by transduction with either BCR-ABL1native or BCR-ABL1T315I retrovirus are injected intravenously into syngeneic Balb/c recipients. Beginning day 3 post-injection, mice are treated with STI571 (100 mg/kg in water twice daily via oral gavage) or with Rebastinib (DCC-2036) (100 mg/kg in 0.5% CMC/1% Tween-80, once daily via oral gavage) or with vehicle (0.5% CMC/1% Tween-80) alone. For induction of CML-like leukemia, bone marrow (BM) from male Balb/c donor mice is harvested 4d after intravenous administration of 150 mg/kg 5-FU, transduced with BCR-ABL1T315I retrovirus, and 5×105 cells injected intravenously into sublethally irradiated (400 cGy) Balb/c recipients. Beginning at d5 post-transplant, cohorts are treated once daily by oral gavage with vehicle alone, or Rebastinib (DCC-2036) at 100 mg/kg. For induction of B-cell acute lymphoblastic leukemia, BM from donors not pretreated with 5-FU is transduced once with BCR-ABL1T315I retrovirus and 1×106 cells injected into sublethally irradiated Balb/c recipients. Beginning at d8 post-transplant, cohorts are treated twice daily by oral gavage with vehicle alone, with Rebastinib (DCC-2036) at 60 mg/kg, with STI571 at 100 mg/kg (in water), or with BMS-354825 at 10 mg/kg (in 80 mM citric acid pH 3.1).

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

References

Purity: 99.91%

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