Measurement of polyphosphoinositides in cultured mammalian cells.

Measurement of polyphosphoinositides in cultured mammalian cells.
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培养的哺乳动物细胞中多磷酸肌醇的测量。

DOI:
10.1007/978-1-60327-115-8_3
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发表时间:
2009
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
通讯作者:
Cooke FT
Cooke FT
中科院分区:
--
文献类型:
--
作者:
Cooke FT

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磷脂酰肌醇(PtdIns)的七种磷酸化衍生物,通常统称为聚磷酸肌醇(PPIn),是真核细胞膜的次要组分。然而,它们的合成是不断增加的细胞过程,包括调节肌动蛋白细胞骨架,趋化性,膜运输,葡萄糖摄取和细胞器酸化所必需的。PPin代谢受激酶和磷酸酶网络的动态调节。此外,PPIn的合成可以由外部刺激引起;例如,第二信使磷脂酰肌醇3,4,5-三磷酸在用激活受体酪氨酸激酶的激动剂如PDGF激发的细胞中快速且瞬时地积累。测量活培养细胞中的PPIn水平对于我们理解这些重要信号分子的代谢和功能至关重要;本文描述了允许测量体内培养细胞中的PPIn水平的方法。
The seven phosphorylated derivatives of phosphatidylinositol (PtdIns), often collectively referred to as polyphosphoinositides (PPIn), are a minor component of eukaryotic cell membranes. Nevertheless, their synthesis is needed for an ever-increasing spectrum of cellular processes, including regulation of the actin cytoskeleton, chemotaxis, membrane trafficking, glucose uptake, and organelle acidification. PPIn metabolism is regulated dynamically by a network of kinases and phosphatases. Furthermore, synthesis of PPIn can be provoked by external stimuli; for example, the second messenger phosphatidylinositol 3,4,5-trisphosphate rapidly and transiently accumulates in cells challenged with agonists such as PDGF that activate receptor tyrosine kinases. The measurement of PPIn levels inin vivocultured cells has been vital to our understanding of the metabolism and function of these important signaling molecules; methods are described herein that allow measurement of PPIn levels in culture cellsin vivo.
DOI: 10.1038/358157a0
发表时间: 1992-07-09
期刊: NATURE
影响因子: 64.8
作者:
HAWKINS, PT;JACKSON, TR;STEPHENS, LR
通讯作者: STEPHENS, LR
生物样品中完整磷酸肌醇的分析已发表,JLR Papers in Press,2006 年 4 月 21 日。
DOI: --
发表时间: 2006
影响因子: 6.5
作者:
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DOI: 10.1042/bj1950301
发表时间: 1981-01-01
影响因子: 4.1
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DOI: 10.1038/351033a0
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影响因子: 64.8
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