Research Project
Grant-in-Aid for Young Scientists (B)
Acyclic retinoid (ACR) is a synthetic vitamin A-like compound capable of preventing the recurrence of hepatocellular carcinoma (HCC). I performed omics analyses to identify molecular targets of ACR. In vivo metabolome analysis revealed that inhibition of biosynthesis of unsaturated fatty acids such as arachidonic acid (AA) but not glucose metabolism played a crucial role in the prevention of hepatic tumorigenesis by ACR. In vitro mechanical analysis showed a critical role of induced ROS/TG2 signaling in liver injury by AA. A genome-wide transcriptome analysis identified that an MYCN+EpCAM+ cancer stem cell (CSC)-like subpopulation was selectively depleted by ACR. Further proteome/metabolome analyses showed unsaturated fatty acids were enriched in EpCAM+ CSC-like HCC cells compared with EpCAM- cells. These findings suggested a potential role of unsaturated fatty acid-associated metabolic changes during hepatic tumorigenesis, which might serve as a therapeutic target for HCC prevention.
All 2018 2017 2016 Other
All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results, Peer Reviewed: 2 results, Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 4 results, Invited: 3 results) Remarks (3 results)
Proc Natl Acad Sci U S A
Volume: 115 Issue: 19 Pages: 4969-4974
10.1073/pnas.1802279115
EBioMedicine
Volume: 24 Pages: 257-266
10.1016/j.ebiom.2017.09.008
http://www.riken.jp/en/pr/press/2018/20180424_1/
http://www.riken.jp/pr/press/2018/20180424_1/
http://www.riken.jp/pr/press/2017/20171024_3/