近日,河北工业大学生物物理研究所马标老师,使用IPHASE品牌产品:人肝微粒体在《Journal of Agricultural and Food Chemistry》权-威期刊上发表文章《Liensinine, a Novel and Food-Derived Compound, Exerts Potent Antihepatoma Efficacy via Inhibiting the Kv10.1 Channel》,影响因子6.1!
本论文中,对课题组提出的药物结合袋进行了虚拟筛选,并确定了一种高效的Kv10.1通道抑制剂Liensinine,可以高效抑制通道电流,IC50为0.24±0.07 μM。分子动力学模拟和定点突变实验揭示了其抑制Kv10.1通道的分子机制。同时抗肿瘤实验分析了Liensinine在体内外均能抑制肝癌细胞的增殖。另外,使用IPHASE肝微粒体产品以体外代谢反应体系探究了其I相代谢情况。综上所述,提出一种食品来源化合物,Liensinine,可以作为靶向Kv10.1的抗肝癌治疗药物的先导化合物。
摘要
Plant metabolites from natural product extracts offer unique advantages against carcinogenesis in the development of drugs. The target-based virtual screening from food-derived compounds represents a promising approach for tumor therapy. In this study, we performed virtual screening to target the presumed inhibitor-binding pocket and identified a highly potent Kv10.1 inhibitor, liensinine (Lien), which can inhibit the channel in a dose-dependent way with an IC50 of 0.24 ± 0.07 μM. Combining molecular dynamics simulations with mutagenesis experiments, our data show that Lien interacts with Kv10.1 by binding with Y539, T543, D551, E553, and H601 in the C-linker domain of Kv10.1. In addition, the interaction of sequence alignment and 3D structural modeling revealed differences between the C-linker domain of the Kv10.1 channel and the Kv11.1 channel. Furthermore, antitumor experiments revealed that Lien suppresses the proliferation and migration of HCC both in vitro and in vivo. In summary, the foodderived compound, Lien, may serve as a lead compound for antihepatoma therapeutic drugs targeting Kv10.1.
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