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  • Title: Inducement of respiratory mucosal immunogenicity for nasal vaccine due to amine- and amide-inactivation of parainfluenza virus type 1, Sendai.
    Author: Miyamae T.
    Journal: Microbiol Immunol; 1994; 38(12):937-41. PubMed ID: 7723686.
    Abstract:
    The protective effects in mice by nasal vaccination of amine- and amide-inactivated Sendai viruses were investigated by a contact exposure experiment, immunofluorescent examination of the entire respiratory tract, and checking the serum HI antibody development. Of 10 monoamines, ethanolamine and 2-methoxyethylamine vaccines induced complete protection, and methylamine, ethylamine, n-propylamine, n-butylamine, 2-ethoxyethylamine, diethylamine and triethylamine vaccines brought about almost complete protection or lower respiratory infection. The methoxyamine-treated mouse conferred the least protection. Of 5 diamines, 1,3-diaminopropane vaccine inhibited completely the infection, but hydrazine, ethylenediamine, putrescine, and cadaverine vaccines produced regional infection. Two polyamines, spermine and spermidine, did not inactivate the virus. Of 4 amides, only semicarbazide vaccine conferred complete mucosal defense, while acetamide, propionamide, and isonicotinic acid hydrazide vaccines lead to regional infection. Serum HI titers developed by vaccination were low on the whole, following their slight rise, fall or maintenance postexposure. In effect, the 4 vaccines inactivated by a best-suited interstrand cross-link between phosphate groups in helix of viral RNA brought about the strongest protection, and showed the necessity of a definite length of molecules for inactivants.
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