약학회지 (YAKHAK HOEJI)

  • 제43권1호
  • /
  • Pages.61-67
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  • 1999
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  • 0377-9556(pISSN)
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  • 2383-9457(eISSN)
대한약학회 (The Pharmaceutical Society of Korea)
권호 표지

Geranyllinalool에 의한 LLC-PK1 세포내 스핑고지질 생합성 억제

Inhibition of de Novo Sphingolipid Biosynthesis by Geranyllinalool in $LLC-PK_1$ Cells

  • 발행 : 1999.02.01
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초록

Geranyllinalool, a polyisoprenoid compound, was found to block the early biosynthetic pathway of sphingolipids in LLC-PKl cells. Sphinganine, an intermediate in sphingolipid biosynthetic pathway, was abruptly accumulated in LLC-PKl cells at $2{\;}{\mu}M$ of fumonisin B1(FB1), a specific inhibitor of sphinganine N-acyltransferase, for 24 hr. Geranyllinalool lowered the $B_1(FB_1)$, a specific inhibitor of sphinganine N-acyltransferase, for 24 hr. Geranyllinalool lowered th FB1 and $50{\;}\mu$M geranyllinalool. l-Cy-closerine, an inhibitor of serine-palmitoyl transferase, was used as a positive control to evaluate the inhibitory effect of geranyllinalool. These results suggest that geranyllinalool may inhibit the serine-palmitoyl transferase, the first enzyme in de novo sphingolipid biosynthesis, resulting in the altered regulation of sphingolipid metabolism.

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