Abstract
The aim of the present study was to examine the potential role and applicability of dietary supplements in reducing the risk of development of amyloid diseases associated with the gastrointestinal tract, such as type II diabetes. Trypsin, a well-known serine protease was used as a model protein in our experiments. The effect of various red wines on the formation of amyloid-like fibrils of trypsin was studied in vitro, in aqueous ethanol, at pH 7.0. Turbidity measurements, aggregation kinetics experiments, Congo red binding assays and electronic circular dichroism spectroscopic measurements were used to follow the aggregation process in the presence or absence of various red wines. The results suggest that red wines effectively inhibit the formation of amyloid-like fibrils of trypsin and the inhibitory effect is dose-dependent. The extent of inhibition was found to be proportional to the total concentration of phenolic compounds.
Keywords: Amyloid-like fibrils, electronic circular dichroism, congo red, natural polyphenols, red wine, trypsin.
Protein & Peptide Letters
Title:Inhibition of Amyloid-like Fibril Formation of Trypsin by Red Wines
Volume: 24 Issue: 5
Author(s): Marta Kotorman*, Phanindra B. Kasi, Laszlo Halasz and Attila Borics
Affiliation:
- Department of Biochemistry and Molecular Biology, Faculty of Science and Informatics, University of Szeged, H-6726 Szeged, Középfasor 52,Hungary
Keywords: Amyloid-like fibrils, electronic circular dichroism, congo red, natural polyphenols, red wine, trypsin.
Abstract: The aim of the present study was to examine the potential role and applicability of dietary supplements in reducing the risk of development of amyloid diseases associated with the gastrointestinal tract, such as type II diabetes. Trypsin, a well-known serine protease was used as a model protein in our experiments. The effect of various red wines on the formation of amyloid-like fibrils of trypsin was studied in vitro, in aqueous ethanol, at pH 7.0. Turbidity measurements, aggregation kinetics experiments, Congo red binding assays and electronic circular dichroism spectroscopic measurements were used to follow the aggregation process in the presence or absence of various red wines. The results suggest that red wines effectively inhibit the formation of amyloid-like fibrils of trypsin and the inhibitory effect is dose-dependent. The extent of inhibition was found to be proportional to the total concentration of phenolic compounds.
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Cite this article as:
Kotorman Marta*, Kasi B. Phanindra, Halasz Laszlo and Borics Attila, Inhibition of Amyloid-like Fibril Formation of Trypsin by Red Wines, Protein & Peptide Letters 2017; 24 (5) . https://dx.doi.org/10.2174/0929866524666170214125847
DOI https://dx.doi.org/10.2174/0929866524666170214125847 |
Print ISSN 0929-8665 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5305 |
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