1. Involvement of the ubiquitin-proteasome system in the formation of experimental postsurgical peritoneal adhesions.
- Author
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Di Filippo C, Petronella P, Freda F, Scorzelli M, Ferretti M, Canonico S, Rossi F, and D'Amico M
- Subjects
- Animals, Boronic Acids therapeutic use, Bortezomib, Interleukin-6 metabolism, Male, NF-kappa B metabolism, Peritoneal Diseases drug therapy, Peritoneal Diseases etiology, Pyrazines therapeutic use, Rats, Rats, Sprague-Dawley, Tissue Adhesions drug therapy, Tumor Necrosis Factor-alpha metabolism, Peritoneal Diseases metabolism, Proteasome Endopeptidase Complex metabolism, Tissue Adhesions metabolism, Ubiquitin metabolism
- Abstract
We investigated the Ubiquitin-Proteasome System (UPS), major nonlysosomal intracellular protein degradation system, in the genesis of experimental postsurgical peritoneal adhesions. We assayed the levels of UPS within the adhered tissue along with the development of peritoneal adhesions and used the specific UPS inhibitor bortezomib in order to assess the effect of the UPS blockade on the peritoneal adhesions. We found a number of severe postsurgical peritoneal adhesions at day 5 after surgery increasing until day 10. In the adhered tissue an increased values of ubiquitin and the 20S proteasome subunit, NFkB, IL-6, TNF-α and decreased values of IkB-beta were found. In contrast, bortezomib-treated rats showed a decreased number of peritoneal adhesions, decreased values of ubiquitin and the 20S proteasome, NFkB, IL-6, TNF-α, and increased levels of IkB-beta in the adhered peritoneal tissue. The UPS system, therefore, is primarily involved in the formation of post-surgical peritoneal adhesions in rats.
- Published
- 2012
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