Online ISSN : 1884-6440
Print ISSN : 0385-1036
ISSN-L : 0385-1036
2次元・3次元 膜ダイナミクスと細胞信号伝達
下川 直史高木 昌宏
ジャーナル オープンアクセス

2016 年 41 巻 5 号 p. 233-239


The cell membrane is based on structure of lipid bilayer, and is constituted with hundreds kinds of phospholipid molecules. As the most famous model of the cell membrane structure, “the fluid mosaic model” has been the most generally accepted model to date. In this model, phospholipids and component molecules diffuse freely within membrane surfaces. Recently it has been suggested that there is a phase–separated domain structure called “Raft” in membrane1). Rafts contain high concentration of sphingolipids and cholesterol. Rafts concentrate receptor proteins and their dynamics are related to cell signaling. But mechanism of raft dynamics in intracellular signaling is still unknown. We are investigating the mechanism of raft dynamics and its role in cell signal transduction. Here in this review, we would like to introduce our recent research results using both living cells and cell–sized liposomes.

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