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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-10-30
pubmed:abstractText
To characterize the antigenic targets of anti-platelet antibodies (APA) found in systemic lupus erythematosus (SLE)-associated thrombocytopenia, 48 patients with immune thrombocytopenia and SLE were compared with 20 patients with SLE who had never been thrombocytopenic. Both cases and controls were tested for circulating APA by an indirect platelet suspension immunofluorescence assay (PSIIFT) and by indirect monoclonal antibody specific immobilization of platelet antigens (MAIPA). A direct platelet suspension immunofluorescence assay (PSIFT) was also used for antibodies bound to platelets in vivo in thrombocytopenic patients; 13 of them with high titres of platelets-bound APA were investigated by direct and indirect MAIPA and platelet eluate analysis. Circulating APA were detected by PSIIFT in 88% of cases and 55% of controls (P = 0.0066) and platelet-bound antibodies were detected by PSIFT in 90% of cases. Indirect MAIPA detected specific APA (mainly directed against GpIIbIIIa) in 36% of cases and only 5% of the controls (P = 0.0076). Nine out of the 13 fully investigated thrombocytopenic patients (69%) had a positive direct MAIPA and/or APA detected in platelet eluates. In conclusion, the production of specific anti-platelet autoantibodies, mainly directed against GpIIb/IIIa, and their binding to platelet membrane plays an important role in the pathogenesis of SLE-associated thrombocytopenia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0007-1048
pubmed:author
pubmed:issnType
Print
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
354-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Platelet autoantibodies and lupus-associated thrombocytopenia.
pubmed:affiliation
Service de Médecine Interne, EFS Ile de France, hôpital Henri-Mondor, Créteil.
pubmed:publicationType
Journal Article