Trisubstituted purine inhibitors of PDGFRα and their antileukemic activity in the human eosinophilic cell line EOL-1
摘要:
Inhibition of protein kinases is a validated concept for pharmacological intervention in cancers. Many kinase inhibitors have been approved for clinical use, but their practical application is often limited. Here, we describe a collection of 23 novel 2,6,9-trisubstituted purine derivatives with nanomolar inhibitory activities against PDGFR alpha, a receptor tyrosine kinase often found constitutively activated in various tumours. The compounds demonstrated strong and selective cytotoxicity in the human eosinophilic leukemia cell line EOL-1, whereas several other cell lines were substantially less sensitive. The cytotoxicity in EOL-1, which is known to express the FIP1L1-PDGFR alpha fusion gene encoding an oncogenic kinase, correlated significantly with PDGFR alpha inhibition. EOL-1 cells treated with the compounds also exhibited dose-dependent inhibition of PDGFR alpha autophosphorylation and suppression of its downstream signaling pathways with concomitant G1 phase arrest, confirming the proposed mechanism of action. Our results show that substituted purines can be used as platforms for preparing tyrosine kinase inhibitors with specific activity towards eosinophilic leukemia. (C) 2017 Elsevier Ltd. All rights reserved.
Development of highly selective casein kinase 1δ/1ε (CK1δ/ε) inhibitors with potent antiproliferative properties
作者:Mathieu Bibian、Ronald J. Rahaim、Jun Yong Choi、Yoshihiko Noguchi、Stephan Schürer、Weimin Chen、Shima Nakanishi、Konstantin Licht、Laura H. Rosenberg、Lin Li、Yangbo Feng、Michael D. Cameron、Derek R. Duckett、John L. Cleveland、William R. Roush
DOI:10.1016/j.bmcl.2013.05.075
日期:2013.8
The development of a series of potent and highly selective caseinkinase 1δ/ε (CK1δ/ε) inhibitors is described. Starting from a purine scaffold inhibitor (SR-653234) identified by high throughput screening, we developed a series of potent and highly kinase selective inhibitors, including SR-2890 and SR-3029, which have IC50 ⩽ 50 nM versus CK1δ. The two lead compounds have ⩽100 nM EC50 values in MTT
Compositions and methods for inducing osteogenesis
申请人:IRM LLC
公开号:US20040157864A1
公开(公告)日:2004-08-12
The present invention provides compositions and methods for differentiating and transdifferentiating mammalian cells into cells of an osteoblast lineage.
[EN] SUBSTITUTED 6-(2-HYDROXYBENZYLAMINO)PURINE DERIVATIVES, THEIR USE AS MEDICAMENTS AND COMPOSITIONS CONTAINING THESE DERIVATIVES<br/>[FR] DÉRIVÉS DE 6-(2-HYDROXYBENZYLAMINO)PURINE SUBSTITUÉS, LEUR UTILISATION EN TANT QUE MÉDICAMENTS ET COMPOSITIONS CONTENANT CES DÉRIVÉS
申请人:UNIV PALACKEHO
公开号:WO2010139289A1
公开(公告)日:2010-12-09
The invention relates to substituted 6-(2-hydroxybenzylamino)purines of general formula I, to their activity as cyclin-dependent kinases 2, 5, 7 and 9 inhibitors and to their use as medicaments, particularly in the treatment of disorders involving cell proliferation or inflammation. The invention further includes pharmaceutical compositions containing the substituted 6-(2-hydroxybenzylamino)purines.
SUBSTITUTED 6-(2-AMINOBENZYLAMINO)PURINE DERIVATIVES, THEIR USE AS MEDICAMENTS AND PREPARATIONS CONTAINING THESE COMPOUNDS
申请人:Havlicek Libor
公开号:US20110287111A1
公开(公告)日:2011-11-24
The invention relates to new substituted 6-(2-aminobenzylamino)purines, represented by the general formula I, which can be used in CDK inhibition, in particular, in the treatment of viral infections and diseases involving cell proliferation. The invention further includes pharmaceutical preparations containing substituted 6-(2-aminobenzylamino)purines.
Substituted 6-(2-hydroxybenzylamino)purine Derivatives, Their Use as Medicaments and Compositions Containing These Derivatives
申请人:Zatloukal Marek
公开号:US20120070512A1
公开(公告)日:2012-03-22
The invention relates to substituted 6-(2-hydroxybenzylamino)purines of general formula I, to their activity as cyclin-dependent kinases 2, 5, 7 and 9 inhibitors and to their use as medicaments, particularly in the treatment of disorders involving cell proliferation or inflammation. The invention further includes pharmaceutical compositions containing the substituted 6-(2-hydroxybenzylamino)purines.