Nitric Oxide in Life and Death of Neutrophilsстатья

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[1] Nitric oxide in life and death of neutrophils / S. Galkina, E. Golenkina, G. Viryasova et al. // Current Medicinal Chemistry. — 2018. NO plays an important role in various neutrophil cellular activities and interaction with other cells. The characteristic cellular activities of neutrophils are adhesion and phagocytosis. NO plays a protective role in neutrophil-endothelial interaction by preventing neutrophil adhesion and endothelial cell damage by activated neutrophils. NO suppresses neutrophil phagocytic activity but stimulates long-distance contact interactions through tubulovesicular extensions or cytonemes. Neutrophils are the main source of superoxide, but NO flow results in the formation of peroxynitrite, a compound with high biological activity. Peroxynitrite is involved in the regulation of eicosanoid biosynthesis and inhibits endothelial prostacyclin synthase. NO and peroxynitrite modulate cellular 5-lipoxygenase activity and leukotriene synthesis. Long-term exposure of neutrophils to NO results in the activation of cell death mechanisms and neutrophil apoptosis. CONCLUSION: Nitric oxide and the NO/superoxide interplay fine-tune mechanisms regulating life and death in neutrophils. [ DOI ]

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