Journal
FEBS LETTERS
Volume 582, Issue 14, Pages 2075-2085Publisher
WILEY
DOI: 10.1016/j.febslet.2008.04.035
Keywords
chemotaxis; polarization; neutrophil; PI3K; heterotrimeric G protein; Dictyostelium
Funding
- NIGMS NIH HHS [R01 GM080370, R01 GM037830, R01 GM080370-03, R01 GM037830-22, R01 GM080370-02, R01 GM080370-01A2, R01 GM084227, R01 GM080370-04, R01 GM037830-21] Funding Source: Medline
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Cells have the innate ability to sense and move towards a variety of chemoattractants. We investigate the pathways by which cells sense and respond to chemoattractant gradients. We focus on the model system Dictyostelium and compare our understanding of chemotaxis in this system with recent advances made using neutrophils and other mammalian cell types, which share many molecular components and signaling pathways with Dictyostelium. This review also examines models that have been proposed to explain how cells are able to respond to small differences in ligand concentrations between the anterior leading edge and posterior of the cell. In addition, we highlight the overlapping functions of many signaling components in diverse processes beyond chemotaxis, including random cell motility and cell division. (C) 2008 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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