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The effects of peroxidase on the enzymatic and candidacidal activities of lysozyme

Cited 11 time in Web of Science Cited 10 time in Scopus
Authors
Lee, Jeong-Yun; Kim, Yoon-Young; Chang, Ji-Youn; Park, Moon-Soo; Kho, Hong-Seop
Issue Date
2010
Publisher
Elsevier
Citation
Archives of Oral Biology, Vol.55, No.9, pp.607-612
Keywords
CandidacidalLysozymePeroxidase
Abstract
Objective: To investigate the effects of peroxidase or the peroxidase system on the enzymatic and candidacidal activities of lysozyme. Design: The effects of peroxidase on lysozyme were examined by incubating hen egg-white lysozyme (HEWL) with bovine lactoperoxidase (bLPO). The influence of the peroxidase system on lysozyme was examined by the subsequent addition of potassium thiocyanate and hydrogen peroxide. Lysozyme activity was determined by the turbidity measurement of a Micrococcus lysodeikticus substrate suspension. Candidacidal activity was determined by comparing the colony forming units of Candida albicans ATCC 10231, ATCC 18804, and ATCC 11006. The Wilcoxon signed rank test was used to analyze the effects of variables. Results: bLPO at physiological concentrations enhanced the enzymatic activity of HEWL and its effect was dependent on bLPO concentration. The enhancement of enzymatic activity of HEWL by bLPO was affected by pH and ionic strength. The addition of potassium thiocyanate and hydrogen peroxide did not lead to an additional enhancement of the enzymatic activity of HEWL, as compared with bLPO alone. HEWL displayed candidacidal activity in all 3 strains of C. ablicans. The addition of bLPO alone did not affect the candidacidal activity of HEWL, but the bLPO system enhanced candidacidal activity of HEWL in all 3 strains of C. ablicans. Conclusions: bLPO enhanced the enzymatic activity of HEWL, but the bLPO system did not show additional enhancement of the enzymatic activity of HEWL. The addition of bLPO did not affect the candidacidal activity of HEWL, but the bLPO system did enhance the candidacidal activity of HEWL. (C) 2010 Elsevier Ltd. All rights reserved.
ISSN
0003-9969
Language
English
URI
http://hdl.handle.net/10371/81054
DOI
https://doi.org/10.1016/j.archoralbio.2010.06.001
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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