Abstract:
:B-cell-dependent autoantibody production is a hallmark of systemic lupus erythematosus (SLE) which requires costimulatory molecules. The aim of the study was to analyse the expression of costimulatory molecules on B cells in patients with SLE. Twenty-six patients with SLE (four male, 22 female, mean age 46 +/- 15 years) as defined by the American College of Rheumatology criteria and 13 healthy controls (three male, 10 female, mean age 43 +/- 15 years) were included in the study. In a subgroup analysis, SLE patients were divided according to renal involvement due to SLE (10 with and 16 patients without renal involvement). Clinical disease activity was assessed according to the systemic lupus erythematosus disease activity index (SLEDAI). Blood B-cell populations were analysed by FACS for the cell surface marker expression of CD27, CD38, CD71, CD80, CD86 and CD137 ligand. The expression levels of CD71, CD80 and CD86 on B cells were significantly enhanced in SLE patients when compared with healthy controls (27 +/- 3% versus 11 +/- 2%, P = 0.0003, 55 +/- 2% versus 28 +/- 4%, P < 0.0001, 34 +/- 3% versus 12 +/- 2%, P < 0.0001). CD86 expression was significantly elevated in patients with renal involvement when compared with patients without renal disease (43 +/- 6% versus 28 +/- 3%, P < 0.05). There was a significant correlation between the expression levels of CD80 and CD86 on CD19(+) B cells and disease activity. Moreover, prednisone dose significantly correlated with SLEDAI (r = 0.5, P = 0.02) and with the expression levels of CD86 (r = 0.47, P = 0.02). A pathological B-cell population is associated with disease activity and renal involvement in SLE which are obviously resistant to therapy with medium doses of prednisone.
journal_name
Scand J Immunoljournal_title
Scandinavian journal of immunologyauthors
Dolff S,Wilde B,Patschan S,Dürig J,Specker C,Philipp T,Kribben A,Witzke Odoi
10.1111/j.1365-3083.2007.02008.xsubject
Has Abstractpub_date
2007-11-01 00:00:00pages
584-90issue
5eissn
0300-9475issn
1365-3083pii
SJI2008journal_volume
66pub_type
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
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journal_title:Scandinavian journal of immunology
pub_type: 杂志文章,评审
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