Imatinib Mesylate (STI571)

For research use only.

Catalog No.S1026 Synonyms: Glivec, CGP-57148B, ST-1571 Mesylate

135 publications

Imatinib Mesylate (STI571) Chemical Structure

CAS No. 220127-57-1

Imatinib Mesylate (STI571, CGP-57148B) 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. Imatinib Mesylate (STI571) induces autophagy.

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10mM (1mL in DMSO) USD 240 In stock
USD 122 In stock
USD 214 In stock
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Selleck's Imatinib Mesylate (STI571) has been cited by 135 publications

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Biological Activity

Description Imatinib Mesylate (STI571, CGP-57148B) 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. Imatinib Mesylate (STI571) induces autophagy.
(Cell-free assay)
c-Kit [2]
(M-07e cells)
v-Abl [1]
(Cell-free assay)
100 nM 100 nM 600 nM
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]

Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
T47D  MnztS5Jwf3SqIFnubIljcXSrb36gRZN{[Xl? M1njc2lEPTB;NUCg{txO NUfkfXVHOjV6NkOyN|I>
Hep G2 NIjObGZIem:5dHigTY5pcWKrdHnvckBCe3OjeR?= MoTBTWM2OD1|MTFOwG0> NVPQUpBrOjV6NkOyN|I>
DU145 MY\D[YxtKF[rYXLpcIl1gSCDc4PhfS=> NITGdJgzOOLCid88US=> NHnNNJA3NTd{IHi= MkCy[IVkemWjc3XzJINmdGxidnnhZoltcXS7 NFzoPJIzPTd6Nk[1Oi=>
PC3  MoDkR4VtdCCYaXHibYxqfHliQYPzZZk> NFzKSmczOOLCid88US=> MX[2MVczKGh? M4PIVolv[3KnYYPld{Bk\WyuII\pZYJqdGm2eR?= MWWyOVc5PjZ3Nh?=
DU145 Mm\xRZBweHSxc3nzJGF{e2G7 NGPRSXUzOOLCid88US=> MX60PE84OiCq NXPib2ZjcW6mdXPld{Bk\WyuIHTlZZRpKGK7IHHwc5B1d3Orcx?= MYqyOVc5PjZ3Nh?=
PC3  NV\nN3hoSXCxcITvd4l{KEG|c3H5 NYXDVnl6OjEkgJpOwG0> MnrXOFgwPzJiaB?= NGXiVZhqdmO{ZXHz[ZMh[2WubDDzeZJ3cX[jbB?= NWDQZpYxOjV5OE[2OVY>
MCF-7 Mn7mS5Jwf3SqIFnubIljcXSrb36gRZN{[Xl? NXy3XIhEOTBizszN MojlOFghcA>? MYDicI9kc3NiY3XscEBxem:uaX\ldoF1cW:wIHnuZ5Jm[XOnIHnu[JVk\WRiYomgRmo{Yg>? NV\5fJJDOjV{N{SwN|Q>
K-562  NHzMU2lIem:5dHigTY5pcWKrdHnvckBCe3OjeR?= M{X0OmlEPTB;MTFOwG0> NVGzNGdXOjV{M{m2OlI>
K562  M1rQ[mdzd3e2aDDJcohq[mm2aX;uJGF{e2G7 MWPJR|UxRTBwNdMg{txO NXLWUWY2OjR7M{m0NVg>
K562r NGH5XWdIem:5dHigTY5pcWKrdHnvckBCe3OjeR?= NIi3NWNKSzVyPUGwxsDPxE1? M37LelI1QTN7NEG4
K562 MYnHdo94fGhiSX7obYJqfGmxbjDBd5NigQ>? M{D4NmVEPTB;MD6wPUDPxE1? Mm\pNVY3Pzh2MUS=
K562 M1yyTmN6fG:2b4jpZ4l1gSCDc4PhfS=> MViyOEBp MkPRTWM2OD1yLkKxJO69VQ>? Mk\ENlIxODB{MEe=
MCF-7 M2T3bGN6fG:2b4jpZ4l1gSCDc4PhfS=> MW[yOEBp MkjITWM2OD1yLkizJO69VQ>? NUfTRoVpOjJyMECyNFc>
MDA-MB-23 M2Pr[mN6fG:2b4jpZ4l1gSCDc4PhfS=> M{Pz[lI1KGh? NX7qdVA5UUN3ME2xMlgh|ryP NYjCN3F5OjJyMECyNFc>
GIST882 NYS2T2xsT3Kxd4ToJGlvcGmkaYTpc44hSXO|YYm= M2SwW|k3KGh? M2rGNWlEPTB;MT63JO69VQ>? MUKyOFkxODJzMh?=

... Click to View More Cell Line Experimental Data

Methods Test Index PMID
Western blot
p-STAT3 / STAT3 / p-STAT5 / STAT5; 

PubMed: 18981115     

For phospho-STAT3 and Phospho-STAT5 detection, cells were then activated for 6 hrs with anti-CD3 and anti-CD28 Ab. Equivalent amounts of protein from cell lysates were separated by SDS-PAGE and western blot analysis was then performed using anti-phospho S䲧疝Ỵ疞㧀疜膉痘 瘿뙠ෆᾰƌෆĀ 㺣痖帉痖

p-ZAP70 / ZAP70 / p-LAT / LAT; 

PubMed: 18981115     

For the analysis of imatinib interference with early TCR signaling events, cells were activated for 5 min with anti-CD3 and anti-CD28 Abs and blots were probed with anti-phospho ZAP70, anti-ZAP70, anti-phospho LAT or anti-LAT antibodies. Untreated, non-ac䲧疝Ỵ疞㧀疜膉痘 瘿�෋ᾰƌ෋à 


PubMed: 20371728     

Nuclear proteins were extracted from the untreated and treated cells and nuclear levels of RelA and RelB were confirmed by immunocytochemistry 

Cortactin / F-actin; 

PubMed: 20937825     

NIH3T3-SrcY527F cells were treated with DMSO or with 10 μm STI571 for 16 h, fixed and co-stained for cortactin (red, left panels) and F-actin (green, middle panels). Merged fields (right panels) demonstrate co-localization between cortactin and F-actin at䲧疝Ỵ疞㧀疜

20371728 20937825
Growth inhibition assay
Cell viability ; 

PubMed: 28435223     

(C) K562 cells were treated with imatinib (0–10 μM) alone or imatinib and BEZ235 (0.2 μM) for 48 h and subjected to MTS assay. (D) KBM7R cells were treated with imatinib (0–10 μM) alone or imatinib and BEZ235 (0.2 μM) for 48 h and subjected to MTS assay. 䲧疝Ỵ疞㧀疜膉痘 瘿�෋ᾰƌ෋à 㺣痖帉痖Ѐ瑖堘𢡄빢᎒෋à鑸᎒彿堙奋堙巫堙᎒ﻺ᎒彿堙ﻮ᎒塚堙ﻺ᎒ꍈ堞빢᎒學堙漸堞圔堙빢᎒圞堙圭堙𢡄玚Wᾰƌ ᾰƌ戤瘯Ɖ뾠Ղ䐺

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]


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.
Cell Research:[3]
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  • Cell lines: BON-1 cells and NCI-H727 cells
  • Concentrations: ~100 μM
  • Incubation Time: 48 hours
  • Method: BON-1 cells and NCI-H727 cells are seeded into flat-bottomed 96-well plates in triplicate and allowed to adhere overnight in 10% fetal bovine serum-supplemented DMEM or RPMI 1640 complete medium, respectively; the medium is then exchanged for serum-free medium (negative control) or serum-free medium containing serial dilutions of Imatinib. After 48 hours (control cultures do not reach confluence), the number of metabolically active cells is determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and absorbance is measured in a Packard Spectra microplate reader at 540 nm. Growth inhibition is calculated using the following formula: inhibition rate = (1 − a / b) × 100%, where a and b are the absorbance values of the treated and control groups, respectively.
    (Only for Reference)
Animal Research:[5]
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  • Animal Models: SCLC6, SCLC61, SCLC 74 and SCLC108 small cell lung cancers are injected into Swiss mice (nu/nu, female).
  • Dosages: 70 or 100 mg/kg
  • Administration: Administered via i.p.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 118 mg/mL (200.09 mM)
Water 118 mg/mL (200.09 mM)
Ethanol Insoluble

* 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


CAS No. 220127-57-1
Storage powder
in solvent
Synonyms Glivec, CGP-57148B, ST-1571 Mesylate
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

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Clinical Trial Information

NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT02687425 Unknown status Drug: Pioglitazone|Drug: imatinib mesylate Leukemia Myelogenous Chronic BCR-ABL Positive Meng Li|Tongji Hospital February 2016 Phase 2
NCT02303899 Unknown status Drug: Gemcitabine|Drug: Imatinib mesylate Mesothelioma Malignant Istituto Clinico Humanitas November 2014 Phase 2
NCT01898377 Active not recruiting Drug: Imatinib mesylate Mycophenolate mofetil Chronic Graft-versus-host Disease Seoul National University Hospital August 2013 Phase 2
NCT02891395 Completed Drug: Imatinib Mesylate and Nilotinib Graft Versus Host Disease University Hospital Lille|Novartis December 24 2012 Phase 2

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID