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Imaging G-protein Coupled Receptor (GPCR)-mediated Signaling Events that Control Chemotaxis of Dictyostelium Discoideum
JoVE Journal
Biologia
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JoVE Journal Biologia
Imaging G-protein Coupled Receptor (GPCR)-mediated Signaling Events that Control Chemotaxis of Dictyostelium Discoideum
DOI:

09:40 min

September 20, 2011

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Capítulos

  • 00:05Título
  • 01:43Preparation of Chemotactic Competent Cells of Dictyostelium discoideum
  • 02:57Imaging Chemotaxing Cells in a Visible and Manipulatable Chemoattractant Gradient
  • 04:16Immobile Nonpolarized Cell Systems Facilitate Imaging Signaling Events Involved in cAMP Gradient Sensing
  • 05:05Representative Images of cAMP Gradient-induced PIP3 Expression
  • 07:58Conclusion

Summary

Tadução automática

Here, we describe detailed live cell imaging methods for investigating chemotaxis. We present fluorescence microscopic methods to monitor spatiotemporal dynamics of signaling events in migrating cells. Measurement of signaling events permits us to further understand how a GPCR-signaling network achieves gradient sensing of chemoattractants and controls directional migration of eukaryotic cells.

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