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Mouse model to study the replication of primate foamy viruses
M Schmidt1, S Niewiesk, J Heeney
1Institut für Virologie und Immunobiologie, Würzburg, Germany.
The Journal of General Virology
|August 1, 1997
Summary
This study developed a mouse model to track human foamy virus (HFV) infection. Different mouse strains showed varied viral persistence and immune responses, highlighting genetic influences on host-pathogen interactions.
Area of Science:
- Virology
- Immunology
- Genetics
Background:
- Human foamy virus (HFV) is a retrovirus with a complex host-pathogen interaction.
- Understanding HFV's in vivo behavior is crucial for developing therapeutic strategies.
- Previous studies lacked comprehensive in vivo models for HFV infection dynamics.
Purpose of the Study:
- To establish and utilize a mouse model for studying HFV-host interactions.
- To analyze the infectious process and viral dissemination in different mouse strains.
- To investigate the correlation between viral persistence and the host's immune response.
Main Methods:
- Development of a mouse model using molecularly cloned HFV.
- Analysis of viral DNA in various tissues via Polymerase Chain Reaction (PCR) over 24 weeks.
- Assessment of virus serology using immunoblotting.
Main Results:
- HFV infection persisted in both CBA/Ca and C57BL/6J mouse strains without inducing clinical symptoms.
- CBA/Ca mice showed increasing viral detectability across organs over time.
- C57BL/6J mice exhibited initial dissemination followed by restricted viral presence, coupled with a stronger antibody response to the Bet protein.
Conclusions:
- The developed mouse model effectively demonstrates persistent HFV infection in vivo.
- Mouse strain genetics significantly influence viral dissemination patterns and the host antiviral immune response.
- C57BL/6J mice mount a more robust antibody response against HFV compared to CBA/Ca mice.