細胞内の膜オルガネラの創成機構  脂肪滴形成のメカニズム

  • 藤本 豊士
    名古屋大学 大学院医学系研究科 分子細胞学分野
  • 大崎 雄樹
    名古屋大学 大学院医学系研究科 分子細胞学分野
  • 鈴木 倫毅
    名古屋大学 大学院医学系研究科 分子細胞学分野

書誌事項

タイトル別名
  • Mechanism of Lipid Droplet Formation
  • 脂肪滴形成のメカニズム
  • シボウテキ ケイセイ ノ メカニズム

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説明

The lipid droplet (LD) is a ubiquitous cellular structure that is made of the core of lipid esters covered by a phospholipid monolayer. LDs have been generally assumed to form by accumulation of lipid esters between the two leaflets of the endoplasmic reticulum (ER), but rigorous evidence to support this conjecture has not been presented. PAT proteins are thought to work as a shield against cytosolic lipases, and also to facilitate budding of LD from the ER. LDs are likely to fuse each other and may divide under some circumstances, which may be augmented by the microtubule-based motility. Because of the unique structure, division of LDs should increase the chance that the lipases get access to the stored lipid esters. By this way, motility and fusion/fission of LD can be linked directly to its physiological functions.

収録刊行物

  • 膜 33 (1), 17-23, 2008

    日本膜学会

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