| 1 | Eupalinolide B inhibits hepatic carcinoma by inducing ferroptosis and ROS-ER-JNK pathway显示文摘Primary hepatic carcinoma is a common malignant tumor.The classic molecular targeted drug sorafenib is costly and is only effective for some patients.Therefore,it is of great clinical significance to search for new molecular targeted drugs.Eupalinolide B(EB)from Eupatorium lindleyanum DC.is used to treat chronic tracheitis in clinical practice.However,the role of EB in hepatic carcinoma is unknown.In this study,we first measure the effect of EB on tumor growth in a xenograft model and PDX model.The cell proliferation and migration are also detected in human hepatocarcinoma cell lines(SMMC-7721 and HCCLM3).Then,we investigate cell cycle,cell apoptosis,cell necrosis,cell autophagy,and ferroptosis by flow cytometry,western blot analysis and electron microscopy.The results demonstrate that EB exerts anti-proliferative activity in hepatic carcinoma by blocking cell cycle arrest at S phase and inducing ferroptosis mediated by endoplasmic reticulum(ER)stress,as well as HO-1 activation.When HO-1 is inhibited,EB-induced cell death and ER protein expression are rescued.The migration-related mechanism consists of activation of the ROS-ER-JNK signaling pathway and is not connected to ferroptosis.In summary,we first discover that EB inhibits cell proliferation and migration in hepatic carcinoma,and thus EB is a promising anti-tumor compound that can be used for hepatic carcinoma. | Yonghui Zhang Haoyang Zhang Jinage Mu Meiyue Han Zhihao Cao Feng Dong Tingting Wang Lian Pan Wujing Luo Jiaxin Li Huan Liu Lishan Jin Wenxuan Ding Yong Wei Xuesong Deng Dan Liu Xiuzhen He Yi Pang Xiao Mu Zhongjun Wu Dilong Chen | 2022 | Acta Biochimica et Biophysica Sinica2022，54，7： | 1 |
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