Linked Life Data

8990088

Source:http://linkedlifedata.com/resource/pubmed/id/8990088

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-3-19
pubmed:abstractText
Although the origin of autoimmune antibodies to double-stranded DNA (dsDNA) is not known, the variable-region structures of such antibodies indicate that they are produced in response to antigen-selective stimulation. In accordance with this, results from experiments using artificial complexes of DNA and DNA-binding polypeptides for immunizations have indicated that DNA may induce these antibodies. The immunogenicity of DNA in vivo may therefore depend upon structures, or processes, that render DNA immunogenic. It is therefore crucial to determine the nature of the antigen(s) recognized by anti-DNA antibody-inducing Th cells. We describe here the results of a series of experiments using polyomavirus BK (BKV) inoculation as a model system for initiation of antibodies to DNA, including dsDNA, in animals. From the early observation that BKV had the potential to induce the linked production of antibodies to DNA and histones, we have investigated and described the molecular bases for how this virus may do so. The minimum requirement for DNA to act as an immunogen is the in vivo expression of the BKV early gene encoding the DNA-binding large T-antigen. In the context of in vivo expression of this gene, IgG antibodies to dsDNA, histones, and T-antigen were produced. Monoclonal anti-dsDNA antibodies derived from BKV immunized mice demonstrated variable-region structures highly similar to those of spontaneous anti-DNA antibodies in murine lupus. These results represent a conceptual advance in understanding a potential molecular basis for initiation of autoimmunity in systemic lupus erythematosus and establish a precedent for further studies on polyomavirus expression as one biological origin for anti-dsDNA antibodies in human lupus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1046-2023
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
44-54
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Human polyomavirus BK and immunogenicity of mammalian DNA: a conceptual framework.
pubmed:affiliation
Department of Immunology and Transfusion Medicine, University Hospital of Tromsø, Norway.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't