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1996-03-04
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Document 0672
DOCN M9640672
TI PCR detection of JC virus DNA in brain tissue from patients with and
without progressive multifocal leukoencephalopathy.
DT 9604
AU Ferrante P; Caldarelli-Stefano R; Omodeo-Zorini E; Vago L; Boldorini R;
Costanzi G; Institute of Medical Microbiology, University of Milan,
Italy.
SO J Med Virol. 1995 Nov;47(3):219-25. Unique Identifier : AIDSLINE
MED/96129548
AB Progressive multifocal leukoencephalopathy (PML) is a demyelinating
disease of the central nervous system, which is thought to be a result
of the reactivation of JC virus (JCV), a human polyomavirus. The disease
occurs in individuals with immunosuppression and in recent years there
has been an increase in PML cases due to AIDS. A nested polymerase chain
reaction (n-PCR) was employed to detect JCV and BK virus (BKV) DNA in
brain tissue collected postmortem from 28 AIDS patients with PML and
from 13 patients without PML, but with other diagnoses, including solid
tumors, Alzheimer's disease, thromboembolism, myocardial infarction and
acute cerebrovascular diseases. All 28 brain specimens from the patients
with PML were positive for JCV DNA when tested by n-PCR and three of the
latter were also positive for BKV DNA. These results were confirmed by
an enzyme restriction analysis and a DNA hybridization assay.
Interestingly, in this study, JCV DNA was also found in 6 brain tissue
specimens from 4 subjects with diseases unrelated to PML or AIDS. All
the brain specimens from the control group were negative for BKV DNA.
The results confirm that the n-PCR is a useful tool for PML diagnosis.
The presence of JCV DNA in the brain tissue of patients without PML is
particularly important since it indicates that JCV could be latent in
the brains of immunocompetent individuals. Moreover, detection of
simultaneous presence of JCV and BKV in the brain tissue of the patients
with PML demonstrates that BKV may also infect the human brain without
causing any apparent neurological disease.
DE Adult AIDS-Related Opportunistic Infections/PATHOLOGY/*VIROLOGY Base
Sequence Brain/PATHOLOGY/*VIROLOGY DNA, Viral/*ANALYSIS Female Human
Leukoencephalopathy, Progressive Multifocal/COMPLICATIONS/
PATHOLOGY/*VIROLOGY Male Middle Age Molecular Sequence Data
Polymerase Chain Reaction Polyomavirus hominis 1/GENETICS/*ISOLATION &
PURIF Polyomavirus hominis 2/GENETICS/*ISOLATION & PURIF Restriction
Mapping Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).