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Early events in infection of lymphoid tissue by a lentivirus, maedi-visna
B Blacklaws1, P Bird, I McConnell
1Dept of Clinical Veterinary Medicine, University of Cambridge, UK. bab2@cam.ac.uk
Abstract:
All members of the lentivirus family infect cells of the monocyte-macrophage lineage, although this may be obscured during infection in vivo by the effect of the virus on other cells, such as CD4+ lymphocytes. Macrophages are the major cell type infected by the ruminant lentivirus maedi-visna, making it a valuable model for studying the pathogenesis of lentiviruses in these cells.
Insights
Lentiviruses infect monocyte-macrophage cells. The maedi-visna virus, a ruminant lentivirus, primarily infects macrophages, serving as a key model for lentiviral pathogenesis research in these specific cells.
Area of Science:
- Virology
- Immunology
- Cell Biology
Background:
- Lentiviruses are known to infect cells within the monocyte-macrophage lineage.
- In vivo infections can present complex cellular targets due to viral effects on cells like CD4+ lymphocytes.
Purpose of the Study:
- To highlight the significance of macrophages as the primary target cells for lentiviruses.
- To establish the maedi-visna virus as a valuable model for studying lentiviral pathogenesis in macrophages.
Main Methods:
- Analysis of lentivirus tropism within the monocyte-macrophage lineage.
- Utilizing the maedi-visna virus as a model system for in-depth pathogenesis studies.
Main Results:
- Macrophages are confirmed as the predominant cell type infected by lentiviruses.
- The maedi-visna virus demonstrates a strong tropism for macrophages.
Conclusions:
- Macrophages are central to lentivirus infection and pathogenesis.
- The maedi-visna virus provides a robust model for investigating lentiviral mechanisms in macrophages.