A Potent Isoprenylcysteine Carboxylmethyltransferase (ICMT) Inhibitor Improves Survival in Ras-Driven Acute Myeloid Leukemia
摘要:
Blockade of Ras activity by inhibiting its post-translational methylation catalyzed by isoprenylcysteine carboxylmethyltransferase (ICMT) has been suggested as a promising antitumor strategy. However, the paucity of inhibitors has precluded the clinical validation of this approach. In this work we report a potent ICMT inhibitor, compound 3 [UCM-1336, IC50 = 2 mu M], which is selective against the other enzymes involved in the post-translational modifications of Ras. Compound 3 significantly impairs the membrane association of the four Ras isoforms, leading to a decrease of Ras activity and to inhibition of Ras downstream signaling pathways. In addition, it induces cell death in a variety of Ras-mutated tumor cell lines and increases survival in an in vivo model of acute myeloid leukemia. Because ICMT inhibition impairs the activity of the four Ras isoforms regardless of its activating mutation, compound 3 surmounts many of the common limitations of available Ras inhibitors described so far. In addition, these results validate ICMT as a valuable target for the treatment of Ras-driven tumors.
Temperature-responsive polymer compound and process for producing the same
申请人:Akiyama Yoshikatsu
公开号:US20050224415A1
公开(公告)日:2005-10-13
A temperature-responsive polymer and polymer material which has ester bond(s) and/or acid amide bond(s) respectively at one or more sites in the side chain and can be arbitrarily controlled by varying the side chain is provided. The process for production thereof and the use thereof are also provided.
TEMPERATURE-RESPONSIVE POLYMER COMPOUND AND PROCESS FOR PRODUCING THE SAME
申请人:Amersham Pharmacia Biotech K.K.
公开号:EP1153049A1
公开(公告)日:2001-11-14
US6956077B1
申请人:——
公开号:US6956077B1
公开(公告)日:2005-10-18
[EN] TEMPERATURE-RESPONSIVE POLYMER COMPOUND AND PROCESS FOR PRODUCING THE SAME<br/>[FR] POLYMERE SENSIBLE A LA TEMPERATURE ET PROCEDE DE FABRICATION CORRESPONDANT
申请人:AMERSHAM PHARMACIA BIOTECH K K
公开号:WO2000044800A1
公开(公告)日:2000-08-03
A temperature-responsive polymer and polymer material which has ester bond(s) and/or acid amide bond(s) respectively at one or more sites in the side chain and can be arbitrarily controlled by varying the side chain is provided. The process for production thereof and the use thereof are also provided.