Abstract:
:To enhance the ability of indirubin derivatives to inhibit CDK2/cyclin E, a target of anticancer agents, we designed and synthesized a new series of indirubin-3'-oxime derivatives with combined substitutions at the 5 and 5' positions. A molecular docking study predicted the binding of derivatives with OH or halogen substitutions at the 5' position to the ATP binding site of CDK2, revealing the critical interactions that may explain the improved CDK2 inhibitory activity of these derivatives. Among the synthesized derivatives, the 5-nitro-5'-hydroxy analogue 3a and the 5-nitro-5'-fluoro analogue 5a displayed potent inhibitory activity against CDK2, with IC(50) values of 1.9 and 1.7 nM, respectively. These derivatives also showed antiproliferative activity against several human cancer cell lines, with IC(50) values of 0.2-3.3 microM. A representative analogue, 3a, showed greater than 500-fold selectivity for CDK relative to selected kinase panel and potent in vivo anticancer activity.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Choi SJ,Lee JE,Jeong SY,Im I,Lee SD,Lee EJ,Lee SK,Kwon SM,Ahn SG,Yoon JH,Han SY,Kim JI,Kim YCdoi
10.1021/jm100080zsubject
Has Abstractpub_date
2010-05-13 00:00:00pages
3696-706issue
9eissn
0022-2623issn
1520-4804journal_volume
53pub_type
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