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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2002-9-4
pubmed:abstractText
Simian virus 40 (SV40), a monkey polyomavirus, was a contaminant of early poliovirus vaccines administered to millions of individuals in the 1950s and early 1960s. SV40 causes brain tumors in laboratory animals, and SV40 DNA sequences have been variably identified in human choroid plexus tumors and ependymomas. We studied the possible association between SV40 and human brain tumors in northern India, where humans have frequent contact with SV40-infected rhesus macaques. DNA from pathologic specimens from 33 ependymomas, 14 choroid plexus tumors and 18 control brain tissues (contused brain, brain metastases) was extracted and analyzed under masked conditions. We used real-time PCR to detect and quantify SV40 (T antigen) and human (GAPDH) DNA sequences. The SV40 PCR assay detected as few as 10 copies of SV40 DNA and had a linear range from 1 x 10(2) to 1 x 10(6) copies. SV40 DNA was detected in 1 specimen (an ependymoma). However, few SV40 DNA copies were detected in this sample (<10 copies, equivalent to <1 copy/350 cells, based on simultaneous GAPDH quantification), and SV40 was not detected when this sample was retested. Our findings do not support a role for SV40 in choroid plexus tumors or ependymomas from northern India.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0020-7136
pubmed:author
pubmed:copyrightInfo
Copyright 2002 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
101
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
348-52
pubmed:dateRevised
2007-7-24
pubmed:meshHeading
pubmed-meshheading:12209959-Adolescent, pubmed-meshheading:12209959-Adult, pubmed-meshheading:12209959-Animals, pubmed-meshheading:12209959-Antigens, Polyomavirus Transforming, pubmed-meshheading:12209959-Brain, pubmed-meshheading:12209959-Brain Neoplasms, pubmed-meshheading:12209959-Child, pubmed-meshheading:12209959-Child, Preschool, pubmed-meshheading:12209959-Choroid Plexus Neoplasms, pubmed-meshheading:12209959-DNA, Viral, pubmed-meshheading:12209959-Drug Contamination, pubmed-meshheading:12209959-Ependymoma, pubmed-meshheading:12209959-Glyceraldehyde-3-Phosphate Dehydrogenases, pubmed-meshheading:12209959-Humans, pubmed-meshheading:12209959-India, pubmed-meshheading:12209959-Macaca mulatta, pubmed-meshheading:12209959-Nucleic Acid Hybridization, pubmed-meshheading:12209959-Poliovirus Vaccines, pubmed-meshheading:12209959-Polymerase Chain Reaction, pubmed-meshheading:12209959-Simian virus 40
pubmed:year
2002
pubmed:articleTitle
Absence of simian virus 40 in human brain tumors from northern India.
pubmed:affiliation
Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD 20852, USA. engelse@exchange.nih.gov
pubmed:publicationType
Journal Article