Abstract:
:To investigate the capability of different routes of immunization with replication-competent recombinant adenovirus to induce antigen-specific antibody responses, we immunized cotton rats with a human adenovirus type 5 (HAd5) vector expressing the glycoprotein D (gD) of bovine herpesvirus type 1 (BHV-1) (gD-dE3). Different routes of mucosal and systemic immunization (intraduodenal-oral, intraduodenal, intranasal and intradermal) with gD-dE3 stimulated similar levels of gD-specific IgG in the serum of cotton rats. However, intranasal (i.n.) immunization stimulated higher levels of gD-specific IgA in the lung and nasal washes, and higher frequency of gD-specific antibody secreting cells in the lung than did the intradermal immunization. Higher levels of antibody in the respiratory tract following i.n. immunization correlated with better protection of the lungs against i.n. BHV-1 challenge. Intraduodenal-oral immunization induced more gD-specific antibodies in the respiratory tract than intraduodenal immunization alone. Adenovirus dissemination to most organs tested was evident following each route of immunization, which is important to consider when studying the mechanism of induction of immunity by recombinant adenoviruses.
journal_name
Viral Immunoljournal_title
Viral immunologyauthors
Papp Z,Babiuk LA,Baca-Estrada MEdoi
10.1089/vim.1998.11.79subject
Has Abstractpub_date
1998-01-01 00:00:00pages
79-91issue
2eissn
0882-8245issn
1557-8976journal_volume
11pub_type
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