國家衛生研究院 NHRI:Item 3990099045/7572

NHRI > Institute of Biotechnology and Pharmaceutical Research > Hsing-Pang Hsieh > Conference Papers/Meeting Abstract > Item 3990099045/7572

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/7572

Title:	3D-QSAR assisted drug design: Identification of a potent quinazoline based Aurora kinase inhibitor
Authors:	Ke, YY;Shiao, HY;Hsu, YC;Chang-Chu, Y;Wang, WC;Lee, YC;Lin, WH;Hsu, JTA;Chang, CW;Lin, CW;Yeh, TK;Chao, YS;Coumar, MS;Hsieh, HP
Contributors:	Institute of Biotechnology and Pharmaceutical Research
Abstract:	We describe 3D-QSAR assisted design of an Aurora A inhibitor 67 with improved physico-chemical properties, in vitro activity, and in vivo PK profiles than the initial lead 24 . Three different 3D-QSAR models were built and validated using a set of 66 pyrazole (Model I) and furanopyrimidine (Model II) compounds with Aurora kinase A IC50 ranging from 33 nM to 10.5 mM. The best Model III, constructed using 24 training set ompounds from both series, showed robustness (r2CV = 0.54 and 0.52, for CoMFA and CoMSIA) as well as superior redictive abilities for forty two test set compounds (R2pred= 0.52 and 0.67, for CoMFA and CoMSIA). Superimposition of CoMFA and CoMSIA Model III over the crystal structure of Aurora A, suggests the possibility to improve the activity of the ligands by decreasing the steric clash with Val147 and Leu139 and by increasing the hydrophobic contact with Leu139 and Gly216 residues in the solvent exposed region of the enzyme. Based on these suggestions, rational redesign of furanopyrimidine 24 (cLogP = 7.41; Aurora A, IC50 = 43 nM; HCT-116, IC50 = 400 nM) led to the identification of quinazoline 67 (cLogP = 5.28; Aurora A, IC50 = 25 nM; HCT-116, IC50 = 23 nM). Rat in vivo pharmacokinetic study showed that 67 has better systemic exposure after iv administration than 24 , and has potential for further development.
Date:	2013-04-07
Relation:	Abstracts of Papers - American Chemical Society. 2013 Apr 7;245:Article number 87-MEDI.
Link to:	http://abstracts.acs.org/chem/245nm/program/view.php?pub_num=87&par=MEDI
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000324303602480
Appears in Collections:	[Hsing-Pang Hsieh] Conference Papers/Meeting Abstract [Yu-Sheng Chao(2002-2013)] Conference Papers/Meeting Abstract [Teng-Kuang Yeh] Conference Papers/Meeting Abstract [John Tsu-An Hsu] Conference Papers/Meeting Abstract [Wen-Chieh Wang] Conference Papers/Meeting Abstract

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