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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1999-1-29
pubmed:abstractText
Human herpesvirus-8 (HHV-8) DNA sequences have been identified in all forms of Kaposi's sarcoma (KS), a cancer found primarily in adult AIDS patients. We have identified HHV-8 strains in a rare human immunodeficiency virus (HIV)-negative form of KS, which is endemic in children in parts of sub-Saharan Africa. This was shown in Zambia, where we also had identified HHV-8 sequences in blood from HIV-negative febrile children without KS. In order to investigate the relationship of these Zambian strains to each other and to those from other forms of KS, we compared them to strains we have characterized from European AIDS KS (Denmark) and all published sequences from all forms of KS. Four distinct genomic regions were examined by PCR and sequencing: ORF26, ORF75, gH and K1. The results showed a distinct grouping of strains from both sets of Zambian children in all genomic regions studied, but which was most pronounced in the K1 glycoprotein gene. This gene was highly variable, encoding up to 25% amino acid sequence variation. In contrast, the Zambian groups were closely related to each other, with only 2% variation. Similar results were found in comparisons to the K1 sequences from HIV-positive febrile infants or KS children. The data raise the possibility that in areas where rare childhood endemic KS occurs, geographical variation in HHV-8 may relate to differences in virulence or transmission.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1317
pubmed:author
pubmed:issnType
Print
pubmed:volume
79 ( Pt 12)
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3055-65
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:9880022-AIDS-Related Opportunistic Infections, pubmed-meshheading:9880022-Adult, pubmed-meshheading:9880022-Amino Acid Sequence, pubmed-meshheading:9880022-Base Sequence, pubmed-meshheading:9880022-Conserved Sequence, pubmed-meshheading:9880022-DNA, Viral, pubmed-meshheading:9880022-Endemic Diseases, pubmed-meshheading:9880022-Fever, pubmed-meshheading:9880022-Genes, Viral, pubmed-meshheading:9880022-Genetic Variation, pubmed-meshheading:9880022-Glycoproteins, pubmed-meshheading:9880022-Herpesvirus 8, Human, pubmed-meshheading:9880022-Humans, pubmed-meshheading:9880022-Infant, pubmed-meshheading:9880022-Molecular Sequence Data, pubmed-meshheading:9880022-Sarcoma, Kaposi, pubmed-meshheading:9880022-Sequence Analysis, DNA, pubmed-meshheading:9880022-Sequence Homology, Amino Acid, pubmed-meshheading:9880022-Sequence Homology, Nucleic Acid, pubmed-meshheading:9880022-Viral Proteins, pubmed-meshheading:9880022-Zambia
pubmed:year
1998
pubmed:articleTitle
Sequence analyses of human herpesvirus-8 strains from both African human immunodeficiency virus-negative and -positive childhood endemic Kaposi's sarcoma show a close relationship with strains identified in febrile children and high variation in the K1 glycoprotein.
pubmed:affiliation
Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, University of London, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't