Abstract:
:The purpose of this study was to examine the expression of human leukocyte antigen-G (HLA-G) in patients with systemic lupus erythematosus (SLE) and its relation with interleukin-10 (IL-10) production. The study included 50 female SLE patients and 59 healthy female donors. HLA-G expression in peripheral blood and cutaneous biopsies was determined by flow cytometry and immunohistochemistry, respectively. Soluble HLA-G (sHLA-G) and IL-10 were quantified in serum samples by enzyme-linked immunosorbent assay. SLE patients presented with serum sHLA-G and IL-10 levels significantly higher than that observed in controls (median [interquartile range (IQR)] = 43.6 U/ml [23.2-150.2] vs 26.84 U/ml [6.0-45.2], p = 0.004; and 1.4 pg/ml [0-2.3] vs 0 pg/ml [0-1.5], p = 0.01, respectively). But no correlation was observed between sHLA-G and both IL-10 levels and the disease activity index for SLE patients. The expression of membrane HLA-G in peripheral lymphocytes from SLE patients was low, but higher than in controls (median [IQR] = 1.5% [0.6-1.8] and 0.3% [0.2-0.8], respectively; p = 0.02). Finally, these findings were in accordance with the weak expression of HLA-G in skin biopsies. Despite the fact that patients present higher levels of HLA-G than healthy controls, which suggests a possible relevance of this molecule in SLE, it seems not to be related to IL-10 production or disease activity.
journal_name
Hum Immunoljournal_title
Human immunologyauthors
Rosado S,Perez-Chacon G,Mellor-Pita S,Sanchez-Vegazo I,Bellas-Menendez C,Citores MJ,Losada-Fernandez I,Martin-Donaire T,Rebolleda N,Perez-Aciego Pdoi
10.1016/j.humimm.2007.11.001subject
Has Abstractpub_date
2008-01-01 00:00:00pages
9-15issue
1eissn
0198-8859issn
1879-1166pii
S0198-8859(07)00467-3journal_volume
69pub_type
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