Methods for Pseudopodia Purification and Proteomic Analysis
Methods for Pseudopodia Purification and Proteomic Analysis
复制标题
伪足纯化和蛋白质组分析方法
DOI:
10.1126/stke.4002007pl4
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
R. Klemke
中科院分区:
文献类型:
--
作者:
Yingchun Wang;Shi;Wei Wang;Feng Yang;J. Jacobs;D. Camp;Richard D. Smith;R. Klemke
Directional cell migration requires the formation of a dominant pseudopodium in the direction toward which the cell migrates. When a migratory cell is stimulated with a chemoattractant or extracellular matrix (ECM) gradient, it responds with localized amplification of signals on the side facing the gradient. The signals mediate reorganization of the actin-myosin cytoskeleton, leading to morphological polarization of the cell and pseudopodium extension. To identify these signals, we developed an approach to biochemically isolate the pseudopodium from the cell body using 3.0-micrometer porous filters for large-scale quantitative proteomic and phosphoproteomic analysis. Here, we detail the methodology for pseudopodium purification and proteomic analysis. This model system should be widely applicable for the analysis of the pseudopodium proteome from various migratory cell lines, including primary and cancer cell lines stimulated with a diverse array of chemoattractants, ECM proteins, or both.
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影响因子:
7.4
作者:
Tolmachev, Aleksey V.;Monroe, Matthew E.;Smith, Richard D.
通讯作者:
Smith, Richard D.
影响因子:
7.4
作者:
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影响因子:
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J. Wyckoff;Joan G. Jones;J. Condeelis;J. Segall
影响因子:
56.9
作者:
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通讯作者:
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