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Imatinib Mesylate (STI571) (Synonyms: CGP57148B, STI571)

Catalog No.GC11759

Imatinib Mesylate (STI571) (STI571 Mesylate) is a tyrosine kinases inhibitor that inhibits c-Kit, Bcr-Abl, and PDGFR (IC50=100 nM) tyrosine kinases.

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Imatinib Mesylate (STI571) Chemical Structure

Cas No.: 220127-57-1

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10mM (in 1mL DMSO)
$46.00
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100mg
$50.00
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250mg
$106.00
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Sample solution is provided at 25 µL, 10mM.

Description of Imatinib Mesylate (STI571)

Imatinib mesylate is a tyrosine kinase inhibitor IC50 value of 100 nM, 100 nM, 600 nM for v-Abl, c-kit, PDGFR, respectively [1].
Tyrosine kinase is an enzyme which is a subclass of protein kinase and plays an important role in transferring a phosphate group from ATP to a protein in cells. It is shown that tyrosine kinase plays a pivotal role in the management of disorders in which activation of c-Abl, PDGFR, or c-Kit signaling. Recently, the role of tyrosine kinases in the modulation of growth factor signaling are received more and more attention and gradually become an especial important target [2].
Imatinib Mesylate is a specific tyrosine kinase (abl, c-kit, and PDGFR) inhibitor and is reported to sensitize cells to radio- or chemo-therapy. When tested with Y-79 and WERI-RB-1 Rb cell lines, imatinib mesylate treatment decreased the cell proliferation and invasion with the concentration of 10 μM [3]. In osteoblast cells, administration of imatinib mesylate decreased osteoclast development via stimulating differentiation, inhibiting proliferation and survival [4].
In dog model with mast cell tumor, administration of imatinib mesylate at a dose of 10 mg/kg daily for 1-9 weeks reduced tumor growth via inhibiting tyrosine kinase [5].
References:
[1].Buchdunger, E., et al., Selective inhibition of the platelet-derived growth factor signal transduction pathway by a protein-tyrosine kinase inhibitor of the 2-phenylaminopyrimidine class. Proc Natl Acad Sci U S A, 1995. 92(7): p. 2558-62.
[2].Zhou, Y., et al., The multi-targeted tyrosine kinase inhibitor vandetanib plays a bifunctional role in non-small cell lung cancer cells. Sci Rep, 2015. 5: p. 8629.
[3].de Moura, L.R., et al., The effect of imatinib mesylate on the proliferation, invasive ability, and radiosensitivity of retinoblastoma cell lines. Eye (Lond), 2013. 27(1): p. 92-9.
[4].O'Sullivan, S., et al., Imatinib mesylate does not increase bone volume in vivo. Calcif Tissue Int, 2011. 88(1): p. 16-22.
[5].Isotani, M., et al., Effect of tyrosine kinase inhibition by imatinib mesylate on mast cell tumors in dogs. J Vet Intern Med, 2008. 22(4): p. 985-8.

Protocol of Imatinib Mesylate (STI571)

Cell experiment: [1]

Cell lines

T cells

Preparation method

The solubility of this compound in DMSO is >10 mM. 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.

Reaction Conditions

IC50: 3.9 μM for inhibiting DCs-stimulated T-cell proliferation 2.9 μM for inhibiting PHA-stimulated T-cell proliferation 4 days

Applications

Cells were stimulated with allogeneic mature DCs or PHA in the presence of imatinib mesylate. The drug inhibited T-cell proliferation as a function of concentration. The effects were significant at 0.5 μM imatinib mesylate for the cells stimulated by DCs and at 1.0 μM imatinib mesylate for the cells stimulated with PHA. The IC50 values for imatinib mesylate–inhibited T-cell proliferation stimulated by DCs and PHA were 3.9 μM and 2.9 μM, respectively.

Animal experiment: [2]

Animal models

Female C57BL/6 mice

Dosage form

Intraperitoneal injection, 25 or 50mg/kg/day

Applications

Administration of imatinib alone did not generate any changes in lung morphology. However, when imatinib was administered in bleomycin-treated mice, a reduction of fibrotic lesions in the subpleural areas of lung was observed at doses of 25 and 50 mg/kg/day. The quantitative histologic analysis demonstrated that the fibrotic score in mice treated with bleomycin and 50 mg/kg/day of imatinib was significantly lower than that treated with bleomycin alone. The collagen content of the lung was also significantly lower in mice treated with bleomycin and imatinib (50 mg/kg/day) as compared with those treated with bleomycin alone.

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] Dietz A B, Souan L, Knutson G J, et al. Imatinib mesylate inhibits T-cell proliferation in vitro and delayed-type hypersensitivity in vivo. Blood, 2004, 104(4): 1094-1099.

[2] Aono Y, Nishioka Y, Inayama M, et al. Imatinib as a novel antifibrotic agent in bleomycin-induced pulmonary fibrosis in mice. American journal of respiratory and critical care medicine, 2005, 171(11): 1279-1285.

Chemical Properties of Imatinib Mesylate (STI571)

Cas No. 220127-57-1 SDF
Synonyms CGP57148B, STI571
Chemical Name methanesulfonic acid;4-[(4-methylpiperazin-1-yl)methyl]-N-[4-methyl-3-[(4-pyridin-3-ylpyrimidin-2-yl)amino]phenyl]benzamide
Canonical SMILES CC1=C(C=C(C=C1)NC(=O)C2=CC=C(C=C2)CN3CCN(CC3)C)NC4=NC=CC(=N4)C5=CN=CC=C5.CS(=O)(=O)O
Formula C29H31N7O.CH4SO3 M.Wt 589.71
Solubility ≥ 29.5mg/mL in DMSO Storage Store at -20°C
General tips Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
Shipping Condition Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.

Complete Stock Solution Preparation Table of Imatinib Mesylate (STI571)

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1 mg 5 mg 10 mg
1 mM 1.6957 mL 8.4787 mL 16.9575 mL
5 mM 0.3391 mL 1.6957 mL 3.3915 mL
10 mM 0.1696 mL 0.8479 mL 1.6957 mL
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In vivo Formulation Calculator (Clear solution) of Imatinib Mesylate (STI571)

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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.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.

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