Synthesis and pharmacological evaluation of carboxycoumarins as a new antitumor treatment targeting lactate transport in cancer cells
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- 作者：Nihed Draoui ; Olivier Schicke ; Antony Fern ; es ; Xavier Drozak ; Fady Nahra ; Am¨¦lie Dumont ; Jonathan Douxfils ; Emmanuel Hermans ; Jean-Michel Dogn¨¦ ; Romu Corbau ; Arnaud March ; Patrick Chaltin ; Pierre Sonveaux ; Olivier Feron ; Olivier Riant
- 关键词：Cancer ; Monocarboxylate transporter ; Lactate ; Carboxycoumarins
- 刊名：Bioorganic and Medicinal Chemistry
- 出版年：2013
- 出版时间：15 November, 2013
- 年：2013
- 卷：21
- 期：22
- 页码：7107-7117
- 全文大小：720 K
文摘
Under hypoxia, cancer cells consume glucose and release lactate at a high rate. Lactate was recently documented to be recaptured by oxygenated cancer cells to fuel the TCA cycle and thereby to support tumor growth. Monocarboxylate transporters (MCT) are the main lactate carriers and therefore represent potential therapeutic targets to limit cancer progression. In this study, we have developed and implemented a stepwise in vitro screening procedure on human cancer cells to identify new potent MCT inhibitors. Various 7-substituted carboxycoumarins and quinolinone derivatives were synthesized and pharmacologically evaluated. Most active compounds were obtained using a palladium-catalyzed Buchwald-Hartwig type coupling reaction, which proved to be a quick and efficient method to obtain aminocarboxycoumarin derivatives. Inhibition of lactate flux revealed that the most active compound 19 (IC50 11 nM) was three log orders more active than the CHC reference compound. Comparison with warfarin, a conventional anticoagulant coumarin, further showed that compound 19 did not influence the prothrombin time which, together with a good in vitro ADME profile, supports the potential of this new family of compounds to act as anticancer drugs through inhibition of lactate flux.