Expression of E-selectin in ischemic and reperfused human skeletal muscle

Ultrastructural Pathology
L FormigliG P Novelli

Abstract

This work was undertaken to assess the role of endothelial E-selectin in the development of neutrophil accumulation into the ischemic and reperfused human skeletal muscle and eventually in the genesis of ischemia-reperfusion syndrome. Twelve patients affected by abdominal aortic aneurysm who were undergoing reconstructive vascular surgery were studied. Muscle biopsies from the right femoral quadriceps were taken (1) immediately after anesthesia, as control samples, (2) before declamping the aorta, as ischemic samples, and (3) 30 minutes after reperfusion and then processed for immunohistochemical and ultrastructural analysis. Immunohistochemistry revealed a strong positive reaction for E-selectin on the venular endothelium during ischemia and reperfusion. Ultrastructural investigation showed that reactivity for E-selectin matched neutrophil accumulation of the skeletal muscle tissue. This phenomenon was dependent upon a complex series of events that included neutrophil adhesion to the inner surface of the postcapillary venules, passage through endothelial intercellular junctions, and migration distally into the interstitial spaces of the skeletal muscle tissue. Neutrophil tissue infiltration was also associated with ultrastruct...Continue Reading

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Citations

Mar 1, 1997·American Journal of Surgery·G P NovelliS Capaccioli
Jul 31, 1999·Pediatric Neurology·C L WagnerK R Holden
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May 25, 2004·Journal of Cellular Biochemistry·Michael T WatkinsGeorge M Patton

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