| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
We have previously reported the association between Y2R gene SNPs and plasma HDL-C levels. The present study was undertaken to clarify the mechanism of this association. Reporter with Y2R gene containing these SNPs were transiently transfected to various cell lines. Human liver cell HepG2 showed transcriptional activity of Y2R gene with the SNPs associated with lower but not higher plasma HDL-C.
HepG2 contained DNA with these SNPs, so we tested the effect of Y2R antagonist BIIE0246 on gene expression. Microarray analysis revealed BIIE0246-induced up- and down-regulation (>1.5) of 743 and 492 transcripts,respectively. Up-regulated genes were included in chylomicron remodeling and negative regulation of cholesterol/sterol transport, and also included in the pathway of HDL metabolism. Down-regulated genes were included in the pathway of SREBP signaling. These results suggest that Y2R antagonist may be a drug candidate for dyslipidemia in subjects with the specified Y2R SNPs.
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