Raccoon poxvirus recombinants expressing the rabies virus nucleoprotein protect mice against lethal rabies virus infection
| Autor: | J J Esposito, Donald L. Lodmell, W J Bellini, J W Sumner, Larry C. Ewalt |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Radioimmunoprecipitation Assay
Rabies Immunology Antibodies Viral Recombinant virus medicine.disease_cause Microbiology Virus Mice Neutralization Tests Virology medicine Animals Poxviridae Neutralizing antibody Lyssavirus Glycoproteins Vaccines Synthetic biology Vaccination Rabies virus Rhabdoviridae medicine.disease biology.organism_classification Nucleoproteins Rabies Vaccines Insect Science biology.protein Research Article |
| Zdroj: | Journal of Virology. 65:3400-3405 |
| ISSN: | 1098-5514 0022-538X |
| DOI: | 10.1128/jvi.65.6.3400-3405.1991 |
| Popis: | Raccoon poxvirus (RCN) recombinants expressing the rabies virus internal structural nucleoprotein (RCN-N) protected A/WySnJ mice against a lethal challenge with street rabies virus (SRV). Maximum survival was achieved following vaccination by tail scratch and footpad (FP) SRV challenge. RCN-N-vaccinated mice inoculated in the FP with SRV were resistant to infection for at least 54 weeks postvaccination. Protection was also elicited by RCN recombinants expressing the rabies virus glycoprotein (RCN-G). Vaccination with RCN-G evoked rabies virus neutralizing antibody. Rabies virus neutralizing antibody was not detected in RCN-N-vaccinated mice prior to or following SRV infection. Radioimmunoprecipitation assays showed that sera from RCN-N-vaccinated mice which survived SRV infection did not contain antibody to SRV structural protein G, M, or NS. The mechanism(s) of N-induced resistance appears to correlate with the failure of peripherally inoculated SRV to enter the central nervous system (CNS). Support for this correlation with resistance was documented by the observations that SRV-inoculated RCN-N-vaccinated mice did not develop clinical signs of CNS rabies virus infection, infectious SRV was not detected in the spinal cord or brain following FP challenge, and all RCN-N-vaccinated mice died following direct intracranial infection of the CNS with SRV. These results suggest that factors other than anti-G neutralizing antibody are important in resistance to rabies virus and that the N protein should be considered for incorporation with the G protein in recombinant vaccines. |
| Databáze: | OpenAIRE |
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