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Am J Physiol Gastrointest Liver Physiol (December 23, 2003). doi:10.1152/ajpgi.00407.2003
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Submitted on September 17, 2003
Accepted on December 18, 2003

Soluble Complement Receptor 1 (sCR1) Preserves Endothelial Barrier Function and Microcirculation in Postischemic Pancreatitis in the Rat

E. von Dobschuetz1*, O. Bleiziffer2, S. Pahernik3, M. Dellian4, T. Hoffmann5, and K. Messmer2

1 Department of General- and Visceral- Surgery, Albert-Ludwigs-University, Freiburg, Germany
2 Institute for Surgical Research, Ludwig-Maximilians-University, Munich, Germany
3 Institute for Surgical Research, Ludwig-Maximilians-University, Munich, Germany; Department of Urology, University of Mainz, Mainz, Germany
4 Department of Otorhinolaryngology, Ludwig-Maximilians-University, Munich, Germany
5 Maria-Theresia Klinik, Munich, Germany

* To whom correspondence should be addressed. E-mail: ernst{at}von-dobschuetz.de.

Components of the activated complement cascade are considered to play a pivotal role in ischemia reperfusion induced organ injury. Using intravital epifluorescence microscopy we investigated the effect of complement inhibition by the recombinant soluble complement receptor 1 (sCR1, TP10) on the effect of macromolecular microvascular permeability, functional capillary perfusion and leukocyte endothelium interaction in postischemic pancreatitis. Anaesthetised Sprague-Dawley rats were subjected to 60 min of normothermic pancreatic ischemia induced by microclipping of the blood supplying arteries of the organ. Rats who received intravenous sCR1 (15 mg/kg b.w.; n = 7) during reperfusion showed a significant reduction of permeability (1.77 ± 1.34 *10-8 cm/s.; n = 7) of TRITC-Rhodamin labelled albumin injected 90 min after the onset of reperfusion as compared to vehicle treated animals (6.95 ± 1.56 *10-8 cm/s) (n= 7). 120 min after the onset of reperfusion the length of red blood cell perfused capillaries (FCD) was significantly improved (from 279 ± 15.7 cm-1to 330 ± 3.7 cm-1.; n = 7) and the number of leukocytes adherent to postcapillary venules was significantly reduced (from 314 ± 87 mm-2 to 163 ± 71 mm-2.; n = 7) by sCR1 as compared to vehicle treatment. Complement inhibition by sCR1 ameliorates effectively pancreatic ischemia-reperfusion induced microcirculatory disturbances and might be considered for treatment of postischemic pancreatitis.




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W. Hartwig, M. Klafs, M. Kirschfink, T. Hackert, L. Schneider, M.-M. Gebhard, M. W. Buchler, and J. Werner
Interaction of complement and leukocytes in severe acute pancreatitis: potential for therapeutic intervention.
Am J Physiol Gastrointest Liver Physiol, November 1, 2006; 291(5): G844 - G850.
[Abstract] [Full Text] [PDF]




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