Design and Discovery of an Orally Efficacious Spiroindolinone-Based Tankyrase Inhibitor for the Treatment of Colon Cancer

Autor: Takehiro Fukami, Yui Mazaki, Kenichi Washizuka, Hideaki Niwa, Takeshi Tsumura, Hiroo Koyama, Yuko Kano, Yasuko Koda, Fumiyuki Shirai, Kouichi Kitamura, Yoko Yashiroda, Anna Mizutani, Hitomi Yuki, Eiki Shitara, Hiroyuki Seimiya, Teruki Honma, Shin Sato, Tsubasa Chikada, Minoru Yoshida, Masayuki Okue, Takashi Watanabe, Takashi Umehara, Yukiko Muramatsu, Akiko Nagamori, Myung-Kyu Jang, Haruka Yoshida, Mikako Shirouzu
Rok vydání: 2020
Předmět:
Zdroj: Journal of medicinal chemistry. 63(8)
ISSN: 1520-4804
Popis: Tankyrases (TNKS/TNKS2) belong to the poly(ADP-ribose) polymerase family. Inhibition of their enzymatic activities attenuates the Wnt/β-catenin signaling, which plays an important role in cancer pathogenesis. We previously reported the discovery of RK-287107, a spiroindoline-based, highly selective, potent tankyrase inhibitor. Herein we describe the optimization process of RK-287107 leading to RK-582, which exhibits a markedly improved robust tumor growth inhibition in a COLO-320DM mouse xenograft model when orally administered. In addition to the dose-dependent elevation and attenuation of the levels of biomarkers AXIN2 and β-catenin, respectively, results of the TCF reporter and cell proliferation studies on COLO-320DM are discussed.
Databáze: OpenAIRE