Lipid signaling in T-cell development and function.

Lipid signaling in T-cell development and function.
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DOI:
10.1101/cshperspect.a002428
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发表时间:
2010-11
影响因子:
7.2
通讯作者:
Sauer K
Sauer K
中科院分区:
生物学1区
文献类型:
--
作者:
Huang YH;Sauer K

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Second messenger molecules relay, amplify and diversify cell surface receptor signals. One important example are phosphorylated D-myo-inositol derivatives, such as phosphoinositide lipids within cellular membranes, and soluble inositol phosphates. Here, we review how phosphoinositide metabolism generates multiple second messengers with important roles in T cell development and function. They include soluble inositol(1,4,5)trisphosphate, long known for its Ca2+-mobilizing function, and phosphatidylinositol(3,4,5)trisphosphate, whose generation by phosphoinositide 3-kinase and turnover by the phosphatases PTEN and SHIP control a key "hub" of TCR signaling. More recent studies unveiled important second messenger functions for diacylglycerol, phosphatidic acid and soluble inositol(1,3,4,5)tetrakisphosphate in immune cells. Inositol(1,3,4,5)tetrakisphosphate acts as a soluble phosphatidylinositol(3,4,5)trisphosphate analog to control protein membrane recruitment. We propose that phosphoinositide lipids and soluble inositol phosphates can act as complementary partners whose interplay could have broadly important roles in cellular signaling.
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