Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
| Sorafenib kills liver cancer cells by disrupting SCD1-mediated synthesis of monounsaturated fatty acids via the ATP-AMPK-mTOR-SREBP1 signaling pathway | |
| Liu, Ge1,2,3; Kuang, Shan1,2,3; Cao, Ruobing1,2,3; Wang, Ju1,2,3; Peng, Quancai1; Sun, Chaomin1,2,3 | |
| 2019-09-01 | |
| Source Publication | FASEB JOURNAL
 |
| ISSN | 0892-6638 |
| Volume | 33Issue:9Pages:10089-10103 |
| Corresponding Author | Sun, Chaomin(sunchaomin@qdio.ac.cn) |
| Abstract | Sorafenib is a multikinase inhibitor that is effective in treating advanced liver cancer. Although its mechanism of action through several established cancer-related protein kinase targets is well-characterized, sorafenib induces variable responses among human tumors, and the cause for this variation is yet unknown. To investigate the underlying mechanisms, we applied mass spectrometry-based proteomic analysis to Huh7.5 human liver cancer cells and found that sorafenib significantly affected the expression of the key lipogenic enzymes, especially stearoyl coenzyme A desaturase 1 (SCD1), in these cells. Given that SCD1 catalyzes the most crucial and rate-limiting step in the synthesis of monounsaturated fatty acids (FAs), we performed a lipidomic analysis, which showed a dramatically altered lipid profile in sorafenib-treated cells. Detection and analysis of free FAs showed that the levels of monounsaturated FAs, including oleate, were significantly decreased in those cells treated by sorafenib. Addition of oleate protected liver cancer cells from sorafenib-induced death and alleviated the abnormalities of mitochondrial morphology and function caused by the drug. Treatment with sorafenib suppressed ATP production, resulting in AMPK activation via phosphorylation. Further secondary effects included reduction of the levels of sterol regulatory element-binding protein 1 (SREBP1) and the phosphorylation of mammalian target of rapamycin (mTOR) in liver cancer cells. These effects were partly abolished in the presence of compound C (an AMPK inhibitor) and ATP and adenosine, and SREBP1c overexpression also could be resistant to the effects of sorafenib, suggesting that the sorafenib-induced reduction in cell viability was mediated by the ATP-AMPK-mTOR-SREBP1 signaling pathway. Taken together, our results suggest that sorafenib's anticancer activity in liver cancer cells is based on the inhibition of ATP production, SCD1 expression, and monounsaturated FA synthesis. In addition, the decreased monounsaturated FA synthesis further triggered the more serious reduction of ATP production in sorafenib-treated cells. To our knowledge, this is the first evidence that sorafenib disrupts lipogenesis and triggers liver cancer cell death by targeting SCD1 through the ATP-AMPK-mTOR-SREBP1 pathway.-Liu, G., Kuang, S., Cao, R., Wang, J., Peng, Q., Sun, C. Sorafenib kills liver cancer cells by disrupting SCD1-mediated synthesis of monounsaturated fatty acids via the ATP-AMPK-mTOR- SREBP1 signaling pathway. |
| Keyword | stearoyl CoA desaturase 1 monounsaturated FAs ATP production |
| DOI | 10.1096/fj.201802619RR |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | China Ocean Mineral Resources RD Association[DY135-B2-14] ; National Key R and D Program of China[2018YFC0310800] ; Natural Science Outstanding Youth Fund of Shandong Province[JQ201607] ; National Natural Science Foundation of China[31470181] ; Taishan Young Scholar Program of Shandong Province[tsqn20161051] ; AoShan Talents Program - Qingdao National Laboratory for Marine Science and Technology[2015ASTP] ; 100-Talent Project of the Chinese Academy of Sciences |
| WOS Research Area | Biochemistry & Molecular Biology ; Life Sciences & Biomedicine - Other Topics ; Cell Biology |
| WOS Subject | Biochemistry & Molecular Biology ; Biology ; Cell Biology |
| WOS ID | WOS:000482214200030 |
| Publisher | FEDERATION AMER SOC EXP BIOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/162373 |
| Collection | 实验海洋生物学重点实验室 |
| Corresponding Author | Sun, Chaomin |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Shandong, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Shandong, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Shandong, Peoples R China |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Liu, Ge,Kuang, Shan,Cao, Ruobing,et al. Sorafenib kills liver cancer cells by disrupting SCD1-mediated synthesis of monounsaturated fatty acids via the ATP-AMPK-mTOR-SREBP1 signaling pathway[J]. FASEB JOURNAL,2019,33(9):10089-10103. |
| APA | Liu, Ge,Kuang, Shan,Cao, Ruobing,Wang, Ju,Peng, Quancai,&Sun, Chaomin.(2019).Sorafenib kills liver cancer cells by disrupting SCD1-mediated synthesis of monounsaturated fatty acids via the ATP-AMPK-mTOR-SREBP1 signaling pathway.FASEB JOURNAL,33(9),10089-10103. |
| MLA | Liu, Ge,et al."Sorafenib kills liver cancer cells by disrupting SCD1-mediated synthesis of monounsaturated fatty acids via the ATP-AMPK-mTOR-SREBP1 signaling pathway".FASEB JOURNAL 33.9(2019):10089-10103. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| liu2019.pdf（2281KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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