Abstract
Platelet-activating factor (PAF) is a bioactive phospholipid produced by activated inflammatory cells such as polymorphonuclear leukocytes, macrophages, platelets and endothelial cells1. Previous research showed that PAF in vivo, increases vascular permeability and infiltration of PMNs 2. Recent studies, however, have implicated PAF with virtually all inflammatory and immune responses 3. So, PAF influences either directly or indirectly many organ and tissue functions. In PMNs PAF induces chemotaxis, aggregation, adherence, lysosomal enzymes release and the production of leukotrienes and free radicals 4 , 5. In monocytes macrophages, low concentrations of PAF cause not only chemotaxis and aggregation but also potentiate, the IL-1, TNF and superoxide production 6,7. Also PAF induces inhibition of lymphocyte proliferation and IL-2 production was observed 8.
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Baltas, G., Kotsifaki, H., Antonopoulou, S., Kipioti, A., Demopoulos, C.A. (1996). Implication of PAF and Acetylhydrolase (PAF-AH) Activity in Periodontal Disease. In: Nigam, S., Kunkel, G., Prescott, S.M. (eds) Platelet-Activating Factor and Related Lipid Mediators 2. Advances in Experimental Medicine and Biology, vol 416. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0179-8_23
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DOI: https://doi.org/10.1007/978-1-4899-0179-8_23
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