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  • Title: Salivary IgA enhancement strategy for development of a nasal-spray anti-caries mucosal vaccine.
    Author: Yan H.
    Journal: Sci China Life Sci; 2013 May; 56(5):406-13. PubMed ID: 23633072.
    Abstract:
    Dental caries remains one of the most common global chronic diseases caused by Streptococcus mutans, which is prevalent all over the world. The caries prevalence of children aged between 5-6 years old in China is still in very high rate. A potent and effective anti-caries vaccine has long been expected for caries prevention but no vaccines have been brought to market till now mainly due to the low ability to induce and maintain protective antibody in oral fluids. This review will give a brief historical retrospect on study of dental caries and pathogenesis, effective targets for anti-caries vaccines, oral immune system and immunization against dental caries. Then, salivary IgA antibodies and the protective responses are discussed in the context of the ontogeny of mucosal immunity to indigenous oral streptococcal. The methods and advancement for induction of specific anti-caries salivary sIgA antibodies and enhancement of specific anti-caries salivary sIgA antibodies by intranasal immunization with a safe effective mucosal adjuvant are described. The progress in the enhancement of salivary sIgA antibodies and anti-caries protection by intranasal immunization with flagellin-PAc fusion protein will be highlighted. Finally, some of the main strategies that have been used for successful mucosal vaccination of caries vaccine are reviewed, followed by discussion of the mucosal adjuvant choice for achieving protective immunity at oral mucosal membranes for development of a nasal-spray or nasal-drop anti-caries vaccine for human.
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