Sphingosine-1-phosphate receptors stimulate macrophage plasma-membrane actin assembly via ADP release, ATP synthesis and P2X7R activation - Kuehnel,MP; Reiss,M; Anand,PK; Treede,I; Holzer,D; Hoffmann,E; Klapperstueck,M; Steinberg,TH; Markwardt,F; Griffiths,G (JOURNAL OF CELL SCIENCE, 2009)