Table 2.
Brain | Spinal cord | ||||||
---|---|---|---|---|---|---|---|
Animal # | Lesion pattern |
Demyeli- nation |
Neuronal SV40 infection |
Euthanasia due to neurological signs |
SV40 infected cell type |
Demyeli- nation |
Lesion |
1 | PML | Yes | Yes | Yes | Glial cells in GM | No | None |
2 | PML | Yes | Yes | Yes | Glial cells in WM and GM; Meningeal cells | Yes (large) | PML and ME |
3 | PML, ME | Yes | Yes | Yes | Glial cells in GM | No | Gliosis |
4 | ME | No | Yes | Yes | Glial cells in WM and GM; Meningeal cells | No | ME; Perivascular lymphocytic cuff in meninges |
5 | PML,ME | Yes | No | No | Glial cells in WM and GM; Meningeal cells | Yes (small) | PML |
6 | ME | No | No | Yes | Glial cells in GM | Negative | ME; Perivascular lymphocytic cuff in GM and meninges |
PML, Progressive multifocal leukoencephalopathy; ME, Meningoencephalitis or meningitis; GM, Gray matter; WM, White matter; SV40, Simian virus 40.