- 著者
- Mahitab Elsayed Daisuke Kobayashi Toshio Kubota Naoya Matsunaga Ryusei Murata Yuko Yoshizawa Natsuki Watanabe Tohru Matsuura Yuya Tsurudome Takashi Ogino Shigehiro Ohdo Takao Shimazoe
- 出版者
- The Pharmaceutical Society of Japan
- 雑誌
- Biological and Pharmaceutical Bulletin (ISSN:09186158)
- 巻号頁・発行日
- vol.39, no.8, pp.1238-1246, 2016-08-01 (Released:2016-08-01)
- 参考文献数
- 64
- 被引用文献数
- 2 22
Bisphosphonates and statins are known to have antitumor activities against different types of cancer cell lines. In the present study, we investigated the antiproliferative effects of the combination of zoledronic acid (ZOL), a bisphophosphonate, and fluvastatin (FLU), a statin, in vitro on two types of human pancreatic cancer cell lines, Mia PaCa-2 and Suit-2. The pancreatic cancer cell lines were treated with ZOL and FLU both individually and in combination to evaluate their antiproliferative effects using WST-8 cell proliferation assay. In this study, we demonstrated a potent synergistic antiproliferative effect of both drugs when used in combination in both cell lines. Moreover, we studied the molecular mechanism behind this synergistic effect, which was inhibited by the addition of the mevalonate pathway products, farnesyl pyrophosphate (FPP) and geranylgeranyl pyrophosphate (GGPP). Furthermore, we aimed to determine the effect of ZOL and FLU combination on RhoA and Ras guanosine 5′-triphosphate (GTP)-proteins. The combination induced a marked accumulation in RhoA and unprenylated Ras. GGPP and FPP reversed the increase in the amount of both proteins. These results indicated that the combination treatment impaired RhoA and Ras signaling pathway by the inhibition of geranylgeranylation and/or farnesylation. This study provides a potentially effective approach for the treatment of pancreatic cancer using a combination treatment of ZOL and FLU.
- 著者
- Keimei Oh Kouta Nakai Kazuhiro Yamada Yuko Yoshizawa
- 出版者
- 日本農薬学会
- 雑誌
- Journal of Pesticide Science (ISSN:1348589X)
- 巻号頁・発行日
- vol.37, no.1, pp.80-84, 2012-03-20 (Released:2012-02-20)
- 参考文献数
- 21
- 被引用文献数
- 4 8
A series of new triazole derivatives was synthesized and their inhibitory activity against allene oxide synthase (AOS, CYP74A), a key enzyme in jasmonic acid biosynthesis, was evaluated. Structure-activity relationship studies revealed that methyl 8-[1-(naphthalen-2-yl)-2-(1,2,4-triazol-1-yl)ethoxy]octanate (4i) and methyl 8-[1-(2,4-dichlorophenyl)-2-(1,2,4-triazol-1-yl)ethoxy]octanate (4g) exhibit potent inhibitory activity to allene oxide synthase, with IC50 values of 0.75±0.30 and 0.84±0.60 μM, respectively.