Linked Life Data

11733071

Source:http://linkedlifedata.com/resource/pubmed/id/11733071

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2001-12-4
pubmed:abstractText
We had earlier demonstrated that a comparison of DNA fingerprinting profiles of tumor and corresponding normal DNA from the same patient by random amplified polymorphic DNA (RAPD) analysis can readily demonstrate alterations in tumor DNA [Gene 206 (1998) 45 and J. Neuro Oncol. 48 (2000) 1]. These alterations could be used to identify changes in tumor DNA where the prior identity of the locus was not known. In this study, we report the identification, cloning and characterization of a RAPD amplified fragment which was lost in a glioma, a grade IV glioblastoma multiforme (GBM). Comparison of the RAPD profile of tumor and corresponding leucocyte DNA revealed several differences between the two. These included a band of 443 bases, which was demonstrated in the normal, but not in tumor DNA. On sequencing, this band was found to be homologous with a group of SINE sequences, which are probably derived from the human endogenous retrovirus-K (HERV-K). Homology search also reveals that HERV-K-derived sequences are interspersed, amongst others, in the tumor suppressor gene BRCA2 and the DNA repair gene XRCC1. Of particular interest is the inverted repeat pattern of HERV-derived sequences in the genes. While not demonstrating a cause effect relationship, this highlights the possible role of such virus-derived sequences in gene inactivation by recombination during tumorigenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0027-5107
pubmed:author
pubmed:issnType
Print
pubmed:day
12
pubmed:volume
484
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
53-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Alteration of a sequence with homology to human endogenous retrovirus (HERV-K) in primary human glioma: implications for viral repeat mediated rearrangement.
pubmed:affiliation
Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, 110029, New Delhi, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't