1996
DOI: 10.1002/jlb.60.1.94
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Modulation of neutrophil migration by exogenous gaseous nitric oxide

Abstract: We studied the effect of exogenous nitric oxide (NO) on migration of rabbit peritoneal neutrophils. Exogenous NO enhanced random migration of neutrophils in a concentration-dependent way. An optimally stimulatory effect was observed with 0.5 microM NO, whereas at higher NO concentrations the enhancing effect decreased again. NO caused a rapid and transient increase in intracellular guanosine-3',5'-cyclic monophosphate (cGMP) levels. The enhancing effect of NO on random migration was largely reversed by the inh… Show more

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Cited by 46 publications
(31 citation statements)
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“…inhibition of leukocyte functions including chemotaxis and superoxide generation, especially when these NO donors were used at higher concentrations (25)(26)(27). With respect to degranulation, published reports indicate a biphasic dose response in which NO and cGMP enhance exocytosis at low concentrations and inhibits exocytosis at higher concentrations (48,(57)(58)(59). The inhibitory effect in leukocyte functions may be attributed to the ability of several NO donors and cGMP analogs to stimulate cAMP accumulation when used at high concentrations (60).…”
Section: Discussionmentioning
confidence: 99%
“…inhibition of leukocyte functions including chemotaxis and superoxide generation, especially when these NO donors were used at higher concentrations (25)(26)(27). With respect to degranulation, published reports indicate a biphasic dose response in which NO and cGMP enhance exocytosis at low concentrations and inhibits exocytosis at higher concentrations (48,(57)(58)(59). The inhibitory effect in leukocyte functions may be attributed to the ability of several NO donors and cGMP analogs to stimulate cAMP accumulation when used at high concentrations (60).…”
Section: Discussionmentioning
confidence: 99%
“…For example, platelet-derived growth factor and other cytosolic proteins that are released by muscle after crush injury [18] can act as chemoattractants to inflammatory cells [19] and contribute to inflammatory cell activation [20]. NO has also been shown to promote motility [21] and chemotaxis [22] of neutrophils, which may contribute to their ability to invade injured tissues.…”
Section: Introductionmentioning
confidence: 99%
“…The precise function of cGMP-elevating agents and NO donors in regulating neutrophil chemotaxis, granule secretion, and the respiratory burst is controversial (8, 10, 18 -21). NO has diverse effects on neutrophil functions, because a concentration-dependent biphasic effect has been reported for chemotaxis and granule secretion (22)(23)(24). Interestingly, high concentrations of NO-releasing compounds and cGMP analogues inhibit chemotaxis, whereas lower concentrations facilitate this response (20,(22)(23)(24).…”
mentioning
confidence: 99%
“…NO has diverse effects on neutrophil functions, because a concentration-dependent biphasic effect has been reported for chemotaxis and granule secretion (22)(23)(24). Interestingly, high concentrations of NO-releasing compounds and cGMP analogues inhibit chemotaxis, whereas lower concentrations facilitate this response (20,(22)(23)(24). Evidence suggests that exogenous NO or L-Arg regulates chemotaxis and granule secretion via a cGKI-dependent mechanism (9,(22)(23)(24)(25).…”
mentioning
confidence: 99%
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