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Imatinib

CAS No. : 152459-95-5

MCE 国际站：Imatinib

产品活性：Imatinib (STI571) 是一种口服生物可用的酪氨酸激酶抑制剂，可选择性抑制 BCR/ABL，v-Abl，PDGFR，c-kit 激酶活性。Imatinib (STI571) 靠近 ATP 结合位点结合，将其锁定在封闭或自我抑制的构象中，因此半竞争性抑制蛋白质的酶活性。Imatinib 还抑制 SARS-CoV 和 MERS-CoV。

研究领域：Protein Tyrosine Kinase/RTK  |  Anti-infection  |  Autophagy

作用靶点：Bcr-Abl  |  PDGFR  |  c-Kit  |  SARS-CoV  |  Autophagy

In Vitro: Imatinib (STI571) inhibits c-Kit autophosphorylation, activation of MAPK, and activation of Akt without altering total protein levels of c-kit, MAPK, or Akt. The concentration that produces 50% inhibition for these effects is approximately 100 nM.
Imatinib (STI571) is very effective (in vitro IC₅₀ of 25 nM) against the chronic myeloid leukemia-causing kinase Bcr-Abl. Imatinib also efficiently inhibits Kit (in vitro IC₅₀, 410 nM) and PDGFR (in vitro IC₅₀, 380 nM).
Imatinib (STI571) is a multi-target inhibitor of v-Abl, c-Kit and inhibits Bcr/Abl, v-Abl, Tel/Abl, the native PDGFβ receptor, and c-Kit, but it does not inhibit Src family kinases, c-Fms, Flt3, the EGFR or multiple other tyrosine kinases. Imatinib inhibits tyrosine phosphorylation and cell growth of Ba/F3 cells expressing Bcr/Abl, Tel/Abl, Tel/PDGFβR, and Tel/Arg with an IC₅₀ of approximately 0.5 μM in each case, but it has no effect on untransformed Ba/F3 cells growing in IL-3 or on Ba/F3 cells transformed by Tel/JAK2.
The IC₅₀s of Imatinib(STI571) is a multi-target inhibitor of v-Abl, c-Kit and on BON-1 and H727 cells after exposure for 48 h are 32.4 and 32.8 μM, respectively.

In Vivo: In the phosphorothioate antisense oligodeoxynucleotides (PS-ASODN) group, tumor growth is inhibited by 59.437%, which is markedly higher than in the Imatinib (STI571) is a multi-target inhibitor of v-Abl, c-Kit and group (11.071%) and liposome negative control group (2.759%). Telomerase activity is significantly lower (P<0.01) in the PS-ASODN group (0.689±0.158) compare with the Imatinib group (1.838±0.241), liposome negative control group (2.013±0.273), and saline group (2.004±0.163).
Imatinib (25 mg/kg/day, p.o.) suppresses the growth of endometriotic tissue and reduces the number of ovarian follicles in a rat model. Imatinib effectively treats experimental endometriosis by its inhibitor effects on angiogenesis and cell proliferation.

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