Imatinib Mesylate (STI571)
Catalog No.S1026 Synonyms: CGP-57148B, ST-1571 Mesylate
Molecular Weight(MW): 589.71
Imatinib Mesylate (STI571) is an orally bioavailability mesylate salt of Imatinib, which is a multi-target inhibitor of v-Abl, c-Kit and PDGFR with IC50 of 0.6 μM, 0.1 μM and 0.1 μM in cell-free or cell-based assays, respectively.
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THOC5 phospho-Y225 levels were assessed in the populations shown by flow cytometry following 24 h treatment with 5 μM imatinib, 150 nM dasatinib or 5 μM nilotinib. Results are displayed as mean fluorescence intensity (n= 4) ±s.e.m.
Leukemia 2013 27, 932-40. Imatinib Mesylate (STI571) purchased from Selleck.
Inhibition of ER stress response protects against CBD-induced cell death. (b) LX-2 cells were treated with 5 μM CBD in serum-free media for 8 h in the presence or absence of 10 μM imatinib to inhibit ER stress. Expression of PARP, CHOP, and phospho-JNK was determined by western blot analysis and is presented as fold over vehicle.E.M. for n = four independent experiments. (c) Acid phosphatase activity was used to measure LX-2 cell viability following treatment with CBD and imatinib as in (b).
Cell Death Dis 2011 2, e170. Imatinib Mesylate (STI571) purchased from Selleck.
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Ba/F3-p210T315I cells were treated with indicated concentrations of imatinib with or without PDMP for 24 h. Apoptosis was determined as in A. Data are shown as percentage of sub-G1 for apoptosis in triplicate cultures. *P <0.05.
FASEB J 2011 25, 3661-3673. Imatinib Mesylate (STI571) purchased from Selleck.
(a) Cell viability was measured by MTT assay after drug treatment. Results are shown as mean ± SD of at least three independent experiments. (b) Indicated cells were exposed to 0.3 μM imatinib for 3 h or 10 μM Y‐632 for 12 h and analyzed by Western blot.
Cancer Sci, 2016, 107(6):782-90. Imatinib Mesylate (STI571) purchased from Selleck.
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Cell Viability assay results. A2C12, BetaD5, GammaA3, GammaD12, A549, CaCo2, HepG2 cell lines were treated with imatinib mesylate for 24h and 96h.
Dr. Thomas Kruwel of Fraunhofer-Institute for Toxicology and Experimental Medicine. Imatinib Mesylate (STI571) purchased from Selleck.
A. Viability curve for the c-Kit mutant MelMS melanoma cell line treated with increasing concentrations of imatinib for 72h (relative to DMSO-treated controls; mean ±sd; n=3) B. MelMS melanoma cells were treated with 50nM imatinib for 24h. The effects on c-Kit, ERK and AKT activation were determined by immunoblotting.
Dr. Helen Rizos from the university of Sydney. Imatinib Mesylate (STI571) purchased from Selleck.
Purity & Quality Control
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Biological Activity
| Description | Imatinib Mesylate (STI571) is an orally bioavailability mesylate salt of Imatinib, which is a multi-target inhibitor of v-Abl, c-Kit and PDGFR with IC50 of 0.6 μM, 0.1 μM and 0.1 μM in cell-free or cell-based assays, respectively. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| In vitro |
In vitro assays for inhibition of a panel of tyrosine and serine/threonine protein kinases show that Imatinib inhibits the v-Abl tyrosine kinase and PDGFR potently with an IC50 of 0.6 and 0.1 μM, respectively. [1] Imatinib inhibits the SLF-dependent activation of wild-type c-kit kinase activity with a IC50 for these effects of approximately 0.1 μM, which is similar to the concentration required for inhibition of PDGFR. [2] Imatinib exhibits growth-inhibitory activity on the human bronchial carcinoid cell line NCI-H727 and the human pancreatic carcinoid cell line BON-1 with an IC50 of 32.4 and 32.8 μM, respectively. [3] A recent study shows that Imatinib has the potential to exert its antileukemia effects in chronic myelogenous leukemia by down-regulating hERG1 K(+) channels, which are highly expressed in leukemia cells and appear of exceptional importance in favoring leukemogenesis. [4] |
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| Cell Data |
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| In vivo | Imatinib produces a different antitumor effect on three xenografted tumors derived from surgical samples of fresh human small cell lung cancers, with 80%, 40% and 78% growth inhibition of SCLC6, SCLC61 and SCLC108 tumors, respectively, and no significant inhibition of SCLC74 growth. [5] In high fat fed ApoE(-/-) mice, Imatinib significantly reduces the high fat-induced lipid staining area by 30%, 27% and 35% compared to high-fat diet untreated controls when dosed by gavage at 10, 20 and 40 mg/kg, respectively, and suppresses carotid artery lipid accumulation. [6] |
Protocol
| Kinase Assay:[1] |
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PDGF receptor kinase activity: PDGF receptor is immunoprecipitated from BALB/c 3T3 cell extracts with rabbit antiserum to the murine PDGF receptor for 2 hours on ice. Protein A-Sepharose beads are used to collect the antigen-antibody complexes. The immunoprecipitates are washed twice with TNET (50 mM Tris, pH 7.5, 140 mM NaCl, 5 mM EDTA, 1% Triton X-100), once with TNE (50 mM Tris, pH 7.5, 140 mM EDTA), and once with kinase buffer (20 mM Tris, pH 7.5,10 mM MgCl2). After stimulation with PDGF (50 ng/mL) for 10 minutes at 4 °C, different concentrations of drug are added to the reaction mixture. PDGF receptor kinase activity is determined by incubation with 10 μCi [7-33P]-ATP and l μM ATP for 10 minutes at 4 °C. Immune complexes are separated by SDS-PAGE on 7.5% gels. |
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| Cell Research:[3] |
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| Animal Research:[5] |
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Solubility (25°C)
| In vitro | DMSO | 118 mg/mL (200.09 mM) |
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| Water | 118 mg/mL (200.09 mM) | |
| Ethanol | Insoluble | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): Saline For best results, use promptly after mixing. |
30 mg/mL |
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Information
| Molecular Weight | 589.71 |
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| Formula | C29H31N7O.CH4SO3 |
| CAS No. | 220127-57-1 |
| Storage | powder |
| in solvent | |
| Synonyms | CGP-57148B, ST-1571 Mesylate |
Bio Calculators
Molarity Calculator
Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:
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*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Dilution Calculator
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
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This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
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Molecular Weight Calculator
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Molarity Calculator
Clinical Trial Information
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
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| NCT03674099 | Recruiting | Multiple Sclerosis | Tomas Olsson|The Swedish Research Council|Karolinska Institutet | October 1 2018 | Phase 2 |
| NCT03688568 | Recruiting | Neurofibroma Plexiform | Indiana University|Food and Drug Administration (FDA) | September 1 2018 | Phase 2 |
| NCT03516279 | Not yet recruiting | Chronic Phase Chronic Myelogenous Leukemia BCR-ABL1 Positive|Minimal Residual Disease | ECOG-ACRIN Cancer Research Group|National Cancer Institute (NCI)|Eastern Cooperative Oncology Group | August 12 2018 | Phase 2 |
| NCT02538926 | Withdrawn | B Acute Lymphoblastic Leukemia|B Lymphoblastic Lymphoma|Recurrent Adult Acute Lymphoblastic Leukemia|Recurrent B Lymphoblastic Lymphoma|Recurrent T Lymphoblastic Leukemia/Lymphoma|Refractory B Lymphoblastic Lymphoma|Refractory T Lymphoblastic Lymphoma|T Acute Lymphoblastic Leukemia|T Lymphoblastic Lymphoma | University of Washington|National Cancer Institute (NCI) | July 1 2018 | Phase 2 |
| NCT03131999 | Recruiting | Lymphangioleiomyomatosis | Medical University of South Carolina|Columbia University | January 23 2018 | Phase 1|Phase 2 |
| NCT03241199 | Recruiting | Chronic Myeloid Leukemia|Philadelphia Chromosome Positive CML | The University of Hong Kong | August 1 2017 | Phase 2 |
Tech Support
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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