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Activity assessment of microbial fibrinolytic enzymes
Faculty
Science
Year:
2013
Type of Publication:
Article
Pages:
6647-6665
Authors:
Kotb, Essam
DOI:
10.1007/s00253-013-5052-1
Journal:
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY SPRINGER
Volume:
97
Research Area:
Biotechnology \& Applied Microbiology
ISSN
ISI:000321632700005
Keywords :
Fibrinolytic activity, Esterolytic assays, Fluorimetric assays, Fibrin plate method, Euglobulin clot lysis time, Thrombolysis
Abstract:
Conversion of fibrinogen to fibrin inside blood vessels results in thrombosis, leading to myocardial infarction and other cardiovascular diseases. In general, there are four therapy options: surgical operation, intake of antiplatelets, anticoagulants, or fibrinolytic enzymes. Microbial fibrinolytic enzymes have attracted much more attention than typical thrombolytic agents because of the expensive prices and the side effects of the latter. The fibrinolytic enzymes were successively discovered from different microorganisms, the most important among which is the genus Bacillus. Microbial fibrinolytic enzymes, especially those from food-grade microorganisms, have the potential to be developed as functional food additives and drugs to prevent or cure thrombosis and other related diseases. There are several assay methods for these enzymes; this may due to the insolubility of substrate, fibrin. Existing assay methods can be divided into three major groups. The first group consists of assay of fibrinolytic activity with natural proteins as substrates, e.g., fibrin plate methods. The second and third groups of assays are suitable for kinetic studies and are based on the determination of hydrolysis of synthetic peptide esters. This review will deal primarily with the microorganisms that have been reported in literature to produce fibrinolytic enzymes and the first review discussing the methods used to assay the fibrinolytic activity.
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