rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
2007-3-19
|
pubmed:abstractText |
In order to improve the detection of antitopoisomerase 1 antibodies in a cohort of 111 systemic sclerosis patients, we have performed immunoblots on protein extracts of HEp-2 cells. Using indirect immunofluorescence and ELISA, 27 patients (24.3%) had antitopoisomerase 1 antibodies, 32 (28.8%) had anticentromere antibodies, 31 (27.9%) had antinuclear antibodies with none of these two antibodies and 21 (18.9%) had no antinuclear antibody. IgG from 24/27 (88.9%) patients with antitopoisomerase 1 antibodies bound to 2 protein bands of 63 and 100 kDa identified as topoisomerase 1 by N-terminal sequencing. Antitopoisomerase 1 antibodies were detected in 9 (8.1%) patients who had no antitopoisomerase 1 antibody as determined by ELISA. Patients with antitopoisomerase 1 antibodies had an almost similar phenotype without distinction between ELISA or immunoblot approaches. Our results provide evidence for the use of a combination of ELISA and immunoblot approaches for the detection of antitopoisomerase 1 antibodies.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
1521-6616
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
123
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
82-8
|
pubmed:meshHeading |
pubmed-meshheading:17258939-Adult,
pubmed-meshheading:17258939-Antibodies, Antinuclear,
pubmed-meshheading:17258939-Autoantibodies,
pubmed-meshheading:17258939-Autoantigens,
pubmed-meshheading:17258939-Cell Line,
pubmed-meshheading:17258939-Centromere,
pubmed-meshheading:17258939-DNA Topoisomerases, Type I,
pubmed-meshheading:17258939-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:17258939-Fluorescent Antibody Technique,
pubmed-meshheading:17258939-Humans,
pubmed-meshheading:17258939-Immunoblotting,
pubmed-meshheading:17258939-Immunoglobulin G,
pubmed-meshheading:17258939-Middle Aged,
pubmed-meshheading:17258939-Scleroderma, Systemic,
pubmed-meshheading:17258939-Sensitivity and Specificity
|
pubmed:year |
2007
|
pubmed:articleTitle |
Immunoblotting on HEp-2 cells increases the detection of antitopoisomerase 1 antibodies in patients with systemic sclerosis.
|
pubmed:affiliation |
Paris-Descartes University, UPRES-EA 4058, site Cochin, Paris, France.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|