Adhesion dependent release of hepatocyte growth factor and interleukin-1 receptor antagonist from human blood granulocytes and monocytes: Evidence for the involvement of plasma IgG, complement C3 and ?2 integrin
Copyright policy )Adhesion dependent release of hepatocyte growth factor and interleukin-1 receptor antagonist from human blood granulocytes and monocytes: Evidence for the involvement of plasma IgG, complement C3 and ?2 integrin
Evolving evidence of anti-inflammatory effects is observed in patients with rheumatoid arthritis or ulcerative colitis following periodic adsorptive granulocyte and monocyte (GM) apheresis with a column containing cellulose acetate (CA) beads as apheresis carriers. This study was undertaken to obtain insights into mechanisms of anti-inflammatory actions of adsorptive GM apheresis with CA beads.In a series of in-vitro experiments, we investigated the effects of plasma proteins and the leucocytes beta2 integrin (CD18) on granulocyte adsorption to CA beads.Granulocyte adsorption to CA beads required plasma IgG, the complement C3 and was inhibited by an antibody to leucocytes CD18. Further, hepatocyte growth factor (HGF) and interleukin-1 receptor antagonist (IL-1ra) which have strong anti-inflammatory actions were released by granulocytes that adhered to CA beads.Plasma IgG, C3 derived complement activation fragments and leucocytes CD18 are involved in granulocyte adhesion to CA beads and hence the release of HGF and IL-1ra.
Adult, Male, Time Factors, Hepatocyte Growth Factor, Sialoglycoproteins, Blotting, Western, Dose-Response Relationship, Immunologic, Complement C3, Middle Aged, Monocytes, Interleukin 1 Receptor Antagonist Protein, CD18 Antigens, Immunoglobulin G, Cell Adhesion, Leukocytes, Humans, Female, Adsorption, Granulocytes
Adult, Male, Time Factors, Hepatocyte Growth Factor, Sialoglycoproteins, Blotting, Western, Dose-Response Relationship, Immunologic, Complement C3, Middle Aged, Monocytes, Interleukin 1 Receptor Antagonist Protein, CD18 Antigens, Immunoglobulin G, Cell Adhesion, Leukocytes, Humans, Female, Adsorption, Granulocytes
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