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- Yu Chen, Ross Corriden, Yoshiaki Inoue, Linda Yip, Naoyuki Hashiguchi, Annelies Zinkernagel, Victor Nizet, Paul A Insel, and Wolfgang G Junger.
- Department of Surgery, University of California San Diego, San Diego, CA 92103, USA.
- Science. 2006 Dec 15; 314 (5806): 1792-5.
AbstractCells must amplify external signals to orient and migrate in chemotactic gradient fields. We find that human neutrophils release adenosine triphosphate (ATP) from the leading edge of the cell surface to amplify chemotactic signals and direct cell orientation by feedback through P2Y2 nucleotide receptors. Neutrophils rapidly hydrolyze released ATP to adenosine that then acts via A3-type adenosine receptors, which are recruited to the leading edge, to promote cell migration. Thus, ATP release and autocrine feedback through P2Y2 and A3 receptors provide signal amplification, controlling gradient sensing and migration of neutrophils.
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