Discovery of novel coumarin-indole derivatives as tubulin polymerization inhibitors with potent anti-gastric cancer activities

Eur J Med Chem. 2022 Aug 5:238:114467. doi: 10.1016/j.ejmech.2022.114467.

Jian Song ¹, Yong-Feng Guan ², Wen-Bo Liu ³, Chun-Hong Song ³, Xin-Yi Tian ³, Ting Zhu ³, Xiang-Jing Fu ³, Ying-Qiu Qi ⁴, Sai-Yang Zhang ⁵

Affiliations

1 Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China; School of Pharmaceutical Sciences, Institute of Drug Discovery & Development, Key Laboratory of Advanced Drug Preparation Technologies (Ministry of Education), Zhengzhou University, Zhengzhou, Henan, 450001, China.
2 School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, China.
3 School of Pharmaceutical Sciences, Institute of Drug Discovery & Development, Key Laboratory of Advanced Drug Preparation Technologies (Ministry of Education), Zhengzhou University, Zhengzhou, Henan, 450001, China.
4 Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China. Electronic address: qiyq@zzu.edu.cn.
5 Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China; School of Pharmaceutical Sciences, Institute of Drug Discovery & Development, Key Laboratory of Advanced Drug Preparation Technologies (Ministry of Education), Zhengzhou University, Zhengzhou, Henan, 450001, China. Electronic address: saiyangz@zzu.edu.cn.

PMID: 35605363 DOI: 10.1016/j.ejmech.2022.114467

Abstract

Novel coumarin-indole derivatives were designed, synthesized and evaluated as tubulin polymerization inhibitors targeting the colchicine binding site. Among these compounds, compound MY-413 displayed the most potent inhibitory activities against gastric Cancer cell line MGC-803 with an IC₅₀ value of 0.011 μM. Furthermore, the IC₅₀ values of compound MY-413 was less than 0.1 μM for Other 17 Cancer cell lines and less than 0.05 μM for Other 8 Cancer cell lines. Compound MY-413 effectively inhibited the tubulin polymerization (IC₅₀ = 2.46 μM) by binding to the colchicine site. Screening for the inhibitory effects of compound MY-413 on 61 kinases, it was found that compound MY-413 could inhibit MAPK pathways-related kinases. Because of the inhibitory effects of compound MY-413 on tubulin polymerization and MAPK signaling pathway, compound MY-413 induced cell Apoptosis, arrested the cell cycle in the G2/M phase, induced the inhibition of cell proliferation and migration in gastric Cancer cells MGC-803 and HGC-27. In addition, compound MY-413 could significantly inhibit tumor growth in MGC-803 xenograft tumor models with tumor growth inhibition (TGI) rates of 70% (15 mg/kg) and 80% (30 mg/kg) without obvious toxicity. Consistent with the in vitro results, compound MY-413 also inhibited MAPK signaling pathway, and induced Apoptosis and proliferation inhibition in vivo. In conclusion, this work indicated that compound MY-413 was a promising lead compound for the further investigation as a potential anti-gastric Cancer agent.

Keywords

Antiproliferative activities; Colchicine binding site; Coumarin; Indole; MAPK; Tubulin.

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