Abstract:
AIM:To establish the therapeutic potential of proteasome inhibition, we examined the therapeutic effects of MG132 (Z-Leu-Leu-Leu-aldehyde) in an experimental model of acute pancreatitis. METHODS:Pancreatitis was induced in rats by two hourly intraperitoneal (ip) injections of cholecystokinin octapeptide (CCK; 2 x 100 microg/kg) and the proteasome inhibitor MG132 (10 mg/kg ip) was administered 30 min after the second CCK injection. Animals were sacrificed 4 h after the first injection of CCK. RESULTS:Administering the proteasome inhibitor MG132 (at a dose of 10 mg/kg, ip) 90 min after the onset of pancreatic inflammation induced the expression of cell-protective 72 kDa heat shock protein (HSP72) and decreased DNA-binding of nuclear factor-kappaB (NF-kappaB). Furthermore MG132 treatment resulted in milder inflammatory response and cellular damage, as revealed by improved laboratory and histological parameters of pancreatitis and associated oxidative stress. CONCLUSION:Our findings suggest that proteasome inhibition might be beneficial not only for the prevention, but also for the therapy of acute pancreatitis.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Letoha T,Fehér LZ,Pecze L,Somlai C,Varga I,Kaszaki J,Tóth G,Vizler C,Tiszlavicz L,Takács Tdoi
10.3748/wjg.v13.i33.4452subject
Has Abstractpub_date
2007-09-07 00:00:00pages
4452-7issue
33eissn
1007-9327issn
2219-2840journal_volume
13pub_type
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