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Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2022,12,13]]},"abstract":"<jats:p>\n                    Using epitope- and structure-based multiepitope fusion antigen vaccinology platform, we constructed a polyvalent protein immunogen that presents antigenic domains (epitopes) of\n                    <jats:italic>Vibrio cholerae<\/jats:italic>\n                    toxin-coregulated pilus A, cholera toxin (CT), sialidase, hemolysin A, flagellins (B, C, and D), and peptides mimicking lipopolysaccharide O-antigen on a flagellin B backbone. Mice and rabbits immunized intramuscularly with this polyvalent protein immunogen developed antibodies to all of the virulence factors targeted by the immunogen except lipopolysaccharide. Mouse and rabbit antibodies exhibited functional activities against CT enterotoxicity, CT binding to GM\n                    <jats:sub>1<\/jats:sub>\n                    ganglioside, bacterial motility, and in vitro adherence of\n                    <jats:italic>V. cholerae<\/jats:italic>\n                    O1, O139, and non-O1\/non-O139 serogroup strains. When challenged orogastrically with\n                    <jats:italic>V. cholerae<\/jats:italic>\n                    O1 El Tor N16961 or a non-O1\/non-O139 strain, rabbits IM immunized with the immunogen showed a 2-log (99%) reduction in\n                    <jats:italic>V. cholerae<\/jats:italic>\n                    colonization of small intestines. Moreover, infant rabbits born to the mother immunized with the protein immunogen acquired antibodies passively and were protected from bacterial intestinal colonization (&gt;2-log reduction), severe diarrhea (100%), and mild diarrhea (88%) after infection with\n                    <jats:italic>V. cholerae<\/jats:italic>\n                    O1 El Tor (N16961), O1 classical (O395), O139 (Bengal), or a non-O1\/non-O139 strain. This study demonstrated that this polyvalent cholera protein is broadly immunogenic and cross-protective, and an adult rabbit colonization model and an infant rabbit passive protection model fill a gap in preclinical efficacy assessment in cholera vaccine development.\n                  <\/jats:p>","DOI":"10.1073\/pnas.2202938119","type":"journal-article","created":{"date-parts":[[2022,12,5]],"date-time":"2022-12-05T15:13:32Z","timestamp":1670253212000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":19,"title":["A polyvalent multiepitope protein cross-protects against\n                    <i>Vibrio cholerae<\/i>\n                    infection in rabbit colonization and passive protection models"],"prefix":"10.1073","volume":"119","author":[{"given":"Ipshita","family":"Upadhyay","sequence":"first","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siqi","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Galen","family":"Ptacek","sequence":"additional","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyesuk","family":"Seo","sequence":"additional","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9338-5119","authenticated-orcid":false,"given":"David A.","family":"Sack","sequence":"additional","affiliation":[{"name":"Department of International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3723-2257","authenticated-orcid":false,"given":"Weiping","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2022,12,5]]},"reference":[{"key":"e_1_3_4_1_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pntd.0003832"},{"key":"e_1_3_4_2_2","first-page":"477","article-title":"Cholera vaccines: WHO position paper - August 2017","volume":"92","author":"Organization W. 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