
European Journal of Medicinal Chemistry (2020)
Update date:2022-08-15
Topics:
Chen, Shuo-Bin
Hu, Yu-Tao
Huang, Shi-Liang
Huang, Zhi-Shu
Li, Chan
Li, Qing-Jiang
Ou, Tian-Miao
Rao, Yong
Song, Bing-Bing
Song, Qin-Qin
Tan, Jia-Heng
Wang, Hong-Gen
Xu, Yao-Hao
Xu, Zhao
Ye, Ji-Ming
Yu, Hong
Zhong, Guo-Ping
Discovery of novel anti-obesity agents is a challenging and promising research area. Based on our previous works, we synthesized 40 novel β-indoloquinazoline analogues by altering the skeleton and introducing preferential side chains, evaluated their lipid-lowering activity and summarized the structure-activity relationships. In combination with an evaluation of the lipid-lowering efficacies, AMP-dependent activated protein kinase (AMPK) activating ability and liver microsomal stability, compound 23 (named as IQZ23) was selected for further studies. IQZ23 exerted a high efficacy in decreasing the triglyceride level (EC50 = 0.033 μM) in 3T3-L1 adipocytes. Mechanistic studies revealed the lipid-lowering activity of IQZ23 was dependent on the AMPK pathway by modulating ATP synthase activity. This activation was accompanied by mitochondrial biogenesis and oxidation capacity increased, and insulin sensitivity enhanced in pertinent cell models by various interventions. Correspondingly, IQZ23 (20 mg/kg, i.p.) treatment significantly reversed high fat and cholesterol diet (HFC)- induced body weight increases and accompanying clinical symptoms of obesity in mice but without indicative toxicity. These results indicate that IQZ23 could be a useful candidate for the treatment of obesity and related metabolic disorders.
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