Prophylactic trypsin inhibition during the isolation procedure guarantees reproducible, high porcine islet yields
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- Abstract: For isolating islets from the porcine pancreas, we established a semiautomated digestion method. Although the isolation technique was standardized and collagenase of controlled quality was used, until now the reproducibility of high islet yields was unsatisfactory. Our hypothesis was that pancreatic trypsin was responsible for this failure. The aim of this study was to investigate the effect of endogenous trypsin on islet yield. Our results demonstrate that a high trypsin level correlates with poor islet yield, whereas low trypsinAbstract: For isolating islets from the porcine pancreas, we established a semiautomated digestion method. Although the isolation technique was standardized and collagenase of controlled quality was used, until now the reproducibility of high islet yields was unsatisfactory. Our hypothesis was that pancreatic trypsin was responsible for this failure. The aim of this study was to investigate the effect of endogenous trypsin on islet yield. Our results demonstrate that a high trypsin level correlates with poor islet yield, whereas low trypsin activity always correlates with high islet yield. Specific inhibition of trypsin results in low trypsin activity and reproducible, high islet yields.…
Autor(en): | A. Heiser, Karin Ulrichs, W. Müller-Ruchholtz |
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URN: | urn:nbn:de:bvb:20-opus-45531 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Medizinische Fakultät / Klinik und Poliklinik für Allgemein-, Viszeral-, Gefäß- und Kinderchirurgie (Chirurgische Klinik I) |
Sprache der Veröffentlichung: | Englisch |
Erscheinungsjahr: | 1994 |
Originalveröffentlichung / Quelle: | In: Xenotransplantation (1994) 1, 66-68 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit |
Freie Schlagwort(e): | enzyme activation; enzyme inhibitors; islets of Langerhans; swine; xenogenic transplantation |
Datum der Freischaltung: | 03.09.2010 |
Lizenz (Deutsch): | Deutsches Urheberrecht |