期刊
FRONTIERS IN MICROBIOLOGY
卷 14, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fmicb.2023.1150412
关键词
yeast; oral vaccine; Saccharomyces boulardii; Saccharomyces cerevisiae; vaccine; vaccine adjuvant and delivery system
类别
Currently, orally delivered vaccines have advantages over injected vaccines, but approved oral vaccines are limited to diseases that affect the gastrointestinal tract or crucial life cycle stages in the gut. All approved oral vaccines involve live-attenuated or inactivated pathogens. This mini-review explores the potential and challenges of yeast oral vaccine delivery systems for animal and human infectious diseases.
Vaccines that are delivered orally have several advantages over their counterparts that are administered via injection. Despite the advantages of oral delivery, however, approved oral vaccines are currently limited either to diseases that affect the gastrointestinal tract or to pathogens that have a crucial life cycle stage in the gut. Moreover, all of the approved oral vaccines for these diseases involve live-attenuated or inactivated pathogens. This mini-review summarizes the potential and challenges of yeast oral vaccine delivery systems for animal and human infectious diseases. These delivery systems utilize whole yeast recombinant cells that are consumed orally to transport candidate antigens to the immune system of the gut. This review begins with a discussion of the challenges associated with oral administration of vaccines and the distinct benefits offered by whole yeast delivery systems over other delivery systems. It then surveys the emerging yeast oral vaccines that have been developed over the past decade to combat animal and human diseases. In recent years, several candidate vaccines have emerged that can elicit the necessary immune response to provide significant protection against challenge by pathogen. They serve as proof of principle to show that yeast oral vaccines hold much promise.
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