Rat gastric gelatinase induction during endotoxemia.
Dig Dis Sci
; 51(3): 548-59, 2006 Mar.
Article
de En
| MEDLINE
| ID: mdl-16614966
ABSTRACT
Despite continued investigation, the pathogenesis of tissue injury secondary to sepsis remains elusive. Further evaluation of the mechanisms by which endotoxemia and sepsis induce tissue injury is necessary to formulate rational and effective treatment strategies. The purpose of these studies was to evaluate the role of the matrix metalloproteinases MMP-2 and MMP-9 in gastric injury during lipopolysaccharide induced endotoxemia. Lipopolysaccharide increased gastric gelatinase activity as determined by in situ and gelatin zymography. Specifically, lipopolysaccharide induced MMP-2, MMP-9, and tissue inhibitor of metalloproteinase-1 (TIMP-1) transcription, with subsequent increases in MMP-2 and TIMP-1 protein expression. Furthermore, selective metalloproteinase inhibition ameliorated gastric injury in this model. These data suggest that lipopolysaccharide-induced gastric injury is mediated, at least in part, by increased MMP-2 production.
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Gelatinases
/
Endotoxémie
/
Matrix metalloproteinase 2
/
Matrix metalloproteinase 9
/
Muqueuse gastrique
Type d'étude:
Diagnostic_studies
Limites:
Animals
Langue:
En
Journal:
Dig Dis Sci
Année:
2006
Type de document:
Article
Pays d'affiliation:
États-Unis d'Amérique