Association of Simian Virus 40 with a Central Nervous System Lesion Distinct from Progressive Multifocal Leukoencephalopathy in Macaques with AIDS

• Published in: The American journal of pathology Vol. 154; no. 2; pp. 437 - 446
• Main Authors: Simon, Meredith A., Ilyinskii, Petr O., Baskin, Gary B., Knight, Heather Y., Pauley, Douglas R., Lackner, Andrew A.
• Format: Journal Article
• Language: English
• Published: Bethesda, MD Elsevier Inc 01.02.1999; ASIP; American Society for Investigative Pathology
• Subjects: AIDS/HIV; Animals; Antigens, Polyomavirus Transforming - analysis; Base Sequence; Biological and medical sciences; Brain - pathology; Brain - virology; DNA Primers - chemistry; DNA, Viral - analysis; Human viral diseases; In Situ Hybridization; Infectious diseases; Leukoencephalopathy, Progressive Multifocal - pathology; Leukoencephalopathy, Progressive Multifocal - virology; Macaca mulatta; Medical sciences; Meningoencephalitis - pathology; Meningoencephalitis - virology; Molecular Sequence Data; Regular; Serologic Tests; Simian Acquired Immunodeficiency Syndrome - complications; Simian Acquired Immunodeficiency Syndrome - pathology; Simian virus 40 - genetics; Tumor Virus Infections - pathology; Tumor Virus Infections - virology; Viral diseases; Viral diseases of the lymphoid tissue and the blood. Aids; Immunohistochemistry; In situ; Monkey; Papovaviridae; Hybridization; Inflammatory disease; Progressive multifocal leukoencephalopathy; Primates; Sequencing; Slow virus; Immunopathology; Nervous system diseases; Polyomavirus; Retroviridae; AIDS; Simian virus 40; Immune deficiency; Lentivirus; Cerebral disorder; Meningoencephalitis; Infection; Virus; Polymerase chain reaction; Pathology; Vertebrata; Mammalia; Viral disease; Animal; Central nervous system disease; Molecular biology; Simian immunodeficiency virus; Comparative study
• ISSN: 0002-9440; 1525-2191
• DOI: 10.1016/S0002-9440(10)65290-X

The primate polyomavirus SV40 is known to cause interstitial nephritis in primary infections and progressive multifocal leukoencephalopathy (PML) upon reactivation of a latent infection in SIV-infected macaques. We now describe a second central nervous system manifestation of SV40: a meningoencephalitis affecting cerebral gray matter, without demyelination, distinct from PML. Meningoencephalitis appears also to be a primary manifestation of SV40 infection and can be seen in conjunction with SV40-induced interstitial nephritis and pneumonitis. The difference in the lesions of meningoencephalitis and PML does not appear to be due to cellular tropism, as both oligodendrocytes and astrocytes are infected in PML and meningoencephalitis, as determined by in situ hybridization or immunohistochemistry for SV40 coupled with immunohistochemistry for cellular determinants. This is further supported by examination of SV40 nucleic acid sequences from the ori-enhancer and large-T-antigen regions, which reveals no tissue- or lesion-specific variation in SV40 sequences.