关键词: Campylobacter ELISA FliD protein chicken foodborne pathogen sera

Mesh : Animals Antibodies, Bacterial / blood immunology Bacterial Proteins / genetics immunology Campylobacter Infections / blood microbiology veterinary Campylobacter jejuni / genetics immunology Chickens Enzyme-Linked Immunosorbent Assay Poultry Diseases / blood microbiology

来  源:   DOI:10.1093/femsle/fnaa115   PDF(Sci-hub)

Abstract:
Campylobacter is a leading causative pathogen of acute bacterial gastroenteritis among humans. Contaminated chicken products are regarded as major sources of human infection. The flagellar capping protein (FliD), which plays important roles in colonization and adhesion to the mucosal surface of chicken ceca, is conserved among Campylobacter jejuni strains. In this study, the recombinant C. jejuni FliD protein was expressed, purified and used as a coated protein to examine the prevalence of C. jejuni antibodies in chickens. The anti-FliD antibody was prevalent among chicken serum samples taken from different farms in the diverse regions of Jiangsu province by using enzyme-linked immunosorbent assay. The Campylobacter antibody was present in culture-negative chickens. No strong dose-response relationships were observed between serum FliD antibody levels and Campylobacter cultural status. These results provide a basis for further evaluating FliD as a vaccine candidate for broiler chickens or for examining host-C. jejuni interactions, with implications for improving food safety.
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