Synthesis and antitumor evaluation of arctigenin derivatives based on antiausterity strategy
作者:Naoki Kudou、Akira Taniguchi、Kenji Sugimoto、Yuji Matsuya、Masashi Kawasaki、Naoki Toyooka、Chika Miyoshi、Suresh Awale、Dya Fita Dibwe、Hiroyasu Esumi、Shigetoshi Kadota、Yasuhiro Tezuka
DOI:10.1016/j.ejmech.2012.11.031
日期:2013.2
A series of new (-)-arctigenin derivatives with variably modified O-alkyl groups were synthesized and their preferential cytotoxicity was evaluated against human pancreatic cancer cell line PANC-1 under nutrient-deprived conditions. The results showed that monoethoxy derivative 4i (PC50, 0.49 mu M), diethoxy derivative 4h (PC50, 0.66 mu M), and triethoxy derivative 4m (PC50, 0.78. mu M) showed the preferential cytotoxicities under nutrient-deprived conditions, which were identical to or more potent than (-)-arctigenin (1) (PC50, 0.80 mu M). Among them, we selected the triethoxy derivative 4m and examined its in vivo antitumor activity using a mouse xenograft model. Triethoxy derivative 4m exhibited also in vivo antitumor activity with the potency identical to or slightly more than (-)-arctigenin (1). These results would suggest that a modification of (-)-arctigenin structure could lead to a new drug based on the antiausterity strategy. (C) 2012 Elsevier Masson SAS. All rights reserved.