Design of hypoxia-targeting protein tyrosine kinase inhibitor using an innovative pharmacophore 2-methylene-4-cyclopentene-1,3-dione
Design of hypoxia-targeting protein tyrosine kinase inhibitor using an innovative pharmacophore 2-methylene-4-cyclopentene-1,3-dione
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DOI:
10.1016/j.bbapap.2003.11.011
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发表时间:
2004-03-11
影响因子:
3.2
通讯作者:
Shimamura, M
中科院分区:
文献类型:
--
作者:
Hori, H;Nagasawa, H;Shimamura, M
We review in this report our strategy and tactics for the design of 2-hydroxyarylidene-4-cyclopentene-1,3-diones as protein tyrosine kinase (PTK) inhibitors having low mitochondrial toxicities and/or hypoxia-targeting function. We based our synthetic design on an innovative pharmacophore, 2-methylene-4-cyclopentene-1,3-dione. We first showed the effectiveness of this pharmacophore in the development of 2-methylene-4-cyclopentene-1,3-dione as PTK inhibitor that have lower mitochondrial toxicity than the potent PTK inhibitor tyrphostin AG17 Our results show that the cyclopentenedione-derived TX-1123 is a more potent antitumor tyiphostin and also shows lower mitochondrial toxicity than the malononitrile-derived AG17 The O-methylation product of TX-1123 (TX-1925) retained its tyrphostin-like properties. including mitochondrial toxicity and antitumor activities. However, the methylation product of AG17 (TX-1927) retained its tyrphostin-like antitumor activities, but lost its mitochondrial toxicity. Our comprehensive evaluation of these agents with respect to PTK inhibition, mitochondrial inhibition, antitumor activity, and hepatotoxicity demonstrates thatPTK inhibitors TX-1123 and TX-1925 are more promising candidates for antitumor agents than tyrphostin AGIT Secondly, as a further investigation of the promising power of this 4-cyclopentene-1,3-dione as an innovative pharmacophore, we discuss our strategy of development of hypoxia-targeting PTK inhibitor TX1123 analogues. 2 -nitroimidazole-aminomethylenecyclopentenediones, such as TX-2036, for cancer treatment, especially for pancreatic cancers, which have a high level of hypoxia. (C) 2003 Elsevier B.V. All rights reserved.