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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Central role for G protein-coupled phosphoinositide 3-kinase gamma in inflammation.

Phosphoinositide 3-kinase ( PI3K) activity is crucial for leukocyte function, but the roles of the four receptor-activated isoforms are unclear. Mice lacking heterotrimeric guanine nucleotide-binding protein (G protein)-coupled PI3Kgamma were viable and had fully differentiated neutrophils and macrophages. Chemoattractant-stimulated PI3Kgamma-/- neutrophils did not produce phosphatidylinositol 3,4,5-trisphosphate, did not activate protein kinase B, and displayed impaired respiratory burst and motility. Peritoneal PI3Kgamma-null macrophages showed a reduced migration toward a wide range of chemotactic stimuli and a severely defective accumulation in a septic peritonitis model. These results demonstrate that PI3Kgamma is a crucial signaling molecule required for macrophage accumulation in inflammation.[1]

References

  1. Central role for G protein-coupled phosphoinositide 3-kinase gamma in inflammation. Hirsch, E., Katanaev, V.L., Garlanda, C., Azzolino, O., Pirola, L., Silengo, L., Sozzani, S., Mantovani, A., Altruda, F., Wymann, M.P. Science (2000) [Pubmed]
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