, Volume 73, Issue 9, pp 970-984
Date: 21 Sep 2008

Chemotactically active proteins of neutrophils

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Polymorphonuclear leukocytes (neutrophils) are the first cells that arrive at sites of infection or injury. There, besides their microorganism-targeted effector functions, activated neutrophils secrete numerous chemoattractants that recruit other leukocyte subtypes into the inflamed tissue. First, neutrophil activation leads to the upregulation of the gene expression of several classical chemokines of the CXC and CC families. Second, neutrophil granules contain preformed intracellular storage pools of chemotactically active proteins that are rapidly released upon neutrophil degranulation. The third pathway of generation of chemotactically active proteins by activated neutrophils—shedding and concomitant proteolytic processing of a membrane protein—has recently been demonstrated in our laboratory. In this review we summarize the essential features of chemoattractant production by neutrophils and their contribution to orchestrating the recruitment of leukocyte subtypes during inflammatory response.

Original Russian Text © B. K. Pliyev, 2008, published in Biokhimiya, 2008, Vol. 73, No. 9, pp. 1206–1223.