This study aims to elucidate the effect of IgY anti ComD on the biological properties of Streptococcus mutans. (S. mutans) ComD is an interspecies quorum-sensing signaling receptor that plays an important role in biofilm formation by S. mutans.
Materials and Methodology:
Egg yolk IgY was produced by the immunization of chickens with a DNA vaccine containing the ComD DNA coding region. We evaluated the effect of the antibody on biofilm formation by S. mutans isolated from subjects with or without dental caries. We also assessed the immunoreactivity of the antibody against all isolates, and analyzed the protein profile of S. mutans by SDS-PAGE.
The ComD antibody was successfully induced in the hens’ eggs. It inhibited biofilm formation by all S. mutans isolates. In addition, the expression of some protein bands was affected after exposure to the antibody.
IgY anti-S. mutans ComD reduces biofilm formation by this bacterium and alters the protein profile of S. mutans.
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This study was supported by the Grant from The Universitas Indonesia 2011 and Competence Grant from Indonesian Ministry of Education 2013. Authors were grateful for the assistance of Dessy and Maysyaroh from Oral Biology Laboratory Faculty of Dentistry University of Indonesia and Okti from Immunology Department of Veterinary Faculty, IPB. Bogor.
Open-Access License: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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