Nitric Oxide Production and Signaling in Inflammation

The Immunopharmacology Research Group, University of Tampere Medical School and Research Unit, Tampere University Hospital, Tampere, Finland.
Current Drug Targets - Inflammation & Allergy 09/2005; 4(4):471-9. DOI: 10.2174/1568010054526359
Source: PubMed


Nitric oxide (NO) is recognized as a mediator and regulator of inflammatory responses. It possesses cytotoxic properties that are aimed against pathogenic microbes, but it can also have damaging effects on host tissues. NO reacts with soluble guanylate cyclase to form cyclic guanosine monophosphate (cGMP), which mediates many of the effects of NO. NO can also interact with molecular oxygen and superoxide anion to produce reactive nitrogen species that can modify various cellular functions. These indirect effects of NO have a significant role in inflammation, where NO is produced in high amounts by inducible nitric oxide synthase (iNOS) and reactive oxygen species are synthesized by activated inflammatory cells. The present review deals with NO production and signaling in inflammation, especially in relation to human neutrophils and eosinophils.

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Available from: Hannu Kankaanranta, Feb 12, 2015
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    • "tic effect or anti - apoptotic effect of NO has been described in various cells . Apoptosis in human B lymphocytes is suppressed by low - dose NO generated by nitric oxide synthase ( NOS ) ( Mannick et al . , 1994 ) , whereas excessive NO reacts with superoxide anion radicals to form peroxynitrite , leading to the activation of apoptosis cascade ( Korhonen et al . , 2005 ) . Previous studies have shown that M . hyopneumoniae , M . hyorhinis , and M . synoviae stimulate excessive production of NO in the RAW 264 . 7 cell line , human gastric carcinoma AZ - 521 cell Fig . 4 . Effects of LAMP treatment on PARP cleavage , Bax / Bcl - 2 ratio , and phosphorylation of p38 / ERK MAPK in PBMCs . Phosphorylation "
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