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  • Title: Differential production of chemokines by phagocytosing rat neutrophils and macrophages.
    Author: al-Mokdad M, Shibata F, Takano K, Nakagawa H.
    Journal: Inflammation; 1998 Apr; 22(2):145-59. PubMed ID: 9561925.
    Abstract:
    In this study, rat neutrophils and macrophages produced cytokine-induced neutrophil chemoattractants (CINCs) and rat macrophage inflammatory protein-1 alpha (MIP-1 alpha) in different patterns during phagocytosis of heat-killed yeast cells in vitro. The cultured supernatants of the phagocytosing rat neutrophils and macrophages had chemotactic activities toward neutrophils, and the chemotactic potencies were markedly inhibited by anti-CINCs IgGs or/and anti-MIP-1 alpha IgG, suggesting that CINCs and MIP-1 alpha are major neutrophil chemoattractants produced by the phagocytosing neutrophils and macrophages. Dexamethasone suppressed the production of CINCs and MIP-1 alpha by the phagocytosing cells in a dose-dependent manner. Our results demonstrate significant differences in the production of CINCs and MIP-1 alpha by neutrophils and macrophages during phagocytosis of yeast cells and thus may suggest the different contribution of each chemokine to neutrophil recruitment in the processes of inflammation in rats.
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