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Microcirculation. 2003 Jun;10(3-4):289-95.

Arrest chemokines.

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Cardiovascular Research Center and Department of Biomedical Engineering University of Virginia Health System, Charlottesville, VA 22903, USA.


In most organs, leukocyte attachment to the endothelium of blood vessels requires capture and rolling before firm adhesion is initiated by integrin activation and/or redistribution, which can be initiated by immobilized chemokines binding their cognate receptors on rolling cells. Such arrest chemokines are present on the endothelial surface under physiologic or pathologic conditions, necessary, and sufficient to trigger arrest. Although many chemokines can be immobilized and cause arrest of rolling cells in flow chambers, only four have so far been shown to function as arrest chemokines under physiologic conditions, although the actual number could be much higher. Secondary lymphoid tissue chemokine (SLC) (CCL21) on high endothelial venules triggers arrest of rolling lymphocytes, and keratinocyte-derived chemokine (KC) (mouse Gro-alpha, CXCL1), monocyte chemoattractant protein-1 (MCP-1) (CCL2), and regulated on activation, normal T cell exposed and secreted (RANTES) (CCL5) trigger arrest of rolling monocytes. Remarkably, no arrest chemokine for neutrophils under inflammatory conditions has been found so far.

[Indexed for MEDLINE]

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