Research Project
Grant-in-Aid for Challenging Exploratory Research
We focused on novel sterol metabolites, glycosylated sterols that we discovered in vertebrate brain, and verified whether unreported sterol metabolic pathways exist in the brain. Structural analysis of the glycosylated sterols revealed for the first time that glycolipids, in which glucose and galactose are bound to cholesterol and a plant sterol, are present in the brain. Their synthesis and degradation were found to be mediated by glucosylceramide-degrading enzymes, whose involvement in sterol metabolism was not previously reported.
脳内新規糖化ステロール群の合成・分解を担うことが明らかになったグルコシルセラミド分解酵素は、その機能不全がパーキンソン病や小脳失調などの神経変性疾患の原因となる。脳内新規糖化ステロール群の代謝調節という新しい機能に着目することにより、グルコシルセラミド分解酵素の機能不全が神経変性疾患を引き起こすメカニズムを明らかにすることできる可能性があり、本研究成果の学術的・社会的意義は大きい。
All 2020 2019 2018 2017 2016 Other
All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results, Peer Reviewed: 4 results, Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 2 results, Invited: 2 results)
Journal of Biological Chemistry
Volume: 295 Issue: 16 Pages: 5257-5277
10.1074/jbc.ra119.012502
生化学
Volume: 90 Issue: 3 Pages: 399-402
10.14952/SEIKAGAKU.2018.900399
40021622671
Biochim. Biophys. Acta.
Volume: 1861 Issue: 10 Pages: 2507-2514
10.1016/j.bbagen.2017.06.003
J Lipid Res.
Volume: 57 Issue: 11 Pages: 2061-72
10.1194/jlr.m071480
JSBMS Letters
Volume: 41 Pages: 43-46