Somatostatin does not attenuate intestinal injury in dextran sodium sulphate-induced subacute colitis

Somatostatin does not attenuate intestinal injury in dextran sodium sulphate-induced subacute colitis

From several in vitro and in vivo studies involvement of som atostatin (SMS) in intestinal inflammation emerge. Acute colitis induced in rats is attenuated by the long-acting SMS analogue octreotide. We studied the potential beneficial effect of SMS on non-acute experimental colitis. BALB/c mice rec...

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Main Authors: J. D. van Bergeijk, M. E. van Meeteren, C. J. A. M. Tak, A. P. M. van Dijk, M. A. C. Meijssen, J. H. P. Wilson, F. J. Zijlstra
Format: Article
Language:English
Published: Wiley 1998-01-01
Series:Mediators of Inflammation
Subjects:
intestinal inflammation
somatostatin
neuropeptide
experimental colitis
dextran sulphate.
Online Access:http://dx.doi.org/10.1080/09629359891108
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Summary:From several in vitro and in vivo studies involvement of som atostatin (SMS) in intestinal inflammation emerge. Acute colitis induced in rats is attenuated by the long-acting SMS analogue octreotide. We studied the potential beneficial effect of SMS on non-acute experimental colitis. BALB/c mice received either saline, SMS-14 (36 or 120 μg daily) or octreotide (3 μg daily) subcutaneously delivered by implant osmotic pumps. A non-acute colitis was induced by administration of dextran sodium sulphate (DSS) 10% in drinking water during 7 days. DSS evoked a mild, superficial pancolitis, most characterized by mucosal ulceration and submucosal influx of neutrophils. Neither SMS-14 nor octreotide reduced mucosal inflammatory score or macroscopical disease activity, although reduction of intestinal levels of interleukin1 β (IL-1 β), IL-6 and IL-10 during DSS was augmented both by SMS and octreotide. A slight increase of neutrophil influx was seen during SMS administration in animals not exposed to DSS. In conclusion, SMS or its long-acting analogue did not reduce intestinal inflammation in non-acute DSS-induced colitis. According to the cytokine profile observed, SMS-14 and octreotide further diminished the reduction of intestinal macrophage and Th2 lymphocyte activity.
ISSN:0962-9351
1466-1861

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