Production of Secretory Leucocyte Protease Inhibitor (SLPI) in Human Pancreatic β-Cells

Secretory leucocyte protease inhibitor (SLPI) is a potent inhibitor of granulocyte elastase and cathepsin G, and also an inhibitor of pancreatic enzymes like trypsin, chymotrypsin and pancreatic elastase. SLPI has also been shown to inhibit HIV-1 infections by blocking viral DNA synthesis. Since SLP...

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Bibliographic Details
Main Authors: Max Nyström, Magnus Bergenfeldt, Irena Ljungcrantz, Èsa Lindeheim, Kjell Ohlsson
Format: Article
Language:English
Published: Wiley 1999-01-01
Series:Mediators of Inflammation
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Online Access:http://dx.doi.org/10.1080/09629359990478
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Summary:Secretory leucocyte protease inhibitor (SLPI) is a potent inhibitor of granulocyte elastase and cathepsin G, and also an inhibitor of pancreatic enzymes like trypsin, chymotrypsin and pancreatic elastase. SLPI has also been shown to inhibit HIV-1 infections by blocking viral DNA synthesis. Since SLPI is an inhibitor of pancreatic proteases we wished to investigate whether SLPI was also actually produced in the pancreas. M-RNA from human pancreatic tissue showed evidence of SLPI production using the reverse transcriptase polymer chain reaction technique (RTPCR). Using immunohistochemical methods SLPI was demonstrated in the β-ce1ls of the islets of Langerhans. The function could be local protease/antiprotease regulation or antiviral/antibacterial defence in the close vicinity of the cell surface, or even inside the β-cell itself.
ISSN:0962-9351
1466-1861