Dihydroxyoctadecamonoenoate esters inhibit the neutrophil respiratory burst.
J Biosci
;
2007 Mar; 32(2): 279-91
Artigo
em Inglês
| IMSEAR
| ID: sea-111014
ABSTRACT
The leukotoxins [9(10)-and 12(13)-EpOME] are produced by activated inflammatory leukocytes such as neutrophils. High EpOME levels are observed in disorders such as acute respiratory distress syndrome and in patients with extensive burns.Although the physiological significance of the EpOMEs remains poorly understood,in some systems, the EpOMEs act as a protoxin,with their corresponding epoxide hydrolase metabolites,9,10-and 12,13-DiHOME, specifically exerting toxicity.Both the EpOMEs and the DiHOMEs were also recently shown to have neutrophil chemotactic activity.We evaluated whether the neutrophil respiratory burst,a surge of oxidant production thought to play an important role in limiting certain bacterial and fungal infections,is modulated by members of the EpOME metabolic pathway.We present evidence that the DiHOMEs suppress the neutrophil respiratory burst by a mechanism distinct from that of respiratory burst inhibitors such as cyclosporin H or lipoxin A4,which inhibit multiple aspects of neutrophil activation.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Humanos
/
Ácidos Linoleicos
/
Ácidos Oleicos
/
Immunoblotting
/
Explosão Respiratória
/
Células HL-60
/
Eletroforese
/
Glucuronidase
/
Neutrófilos
Idioma:
Inglês
Revista:
J Biosci
Ano de publicação:
2007
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS