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  1. Article: Soluble HLA-G in rheumatoid arthritis.

    Verbruggen, Leon A / Rebmann, Vera / Demanet, Christian / De Cock, Seija / Grosse-Wilde, Hans

    Human immunology

    2006  Volume 67, Issue 8, Page(s) 561–567

    Abstract: We investigated potential correlations between soluble HLA-G (sHLA-G) and soluble HLA class I (sHLA-I) levels, respectively, and parameters of disease activity or genetic factors determined by HLA-DRB1 and HLA-DQB1 in patients with rheumatoid arthritis ( ... ...

    Abstract We investigated potential correlations between soluble HLA-G (sHLA-G) and soluble HLA class I (sHLA-I) levels, respectively, and parameters of disease activity or genetic factors determined by HLA-DRB1 and HLA-DQB1 in patients with rheumatoid arthritis (RA). SHLA-G plasma concentrations from 106 RA patients (mean age 59.8 years, 80 women) were assessed by a sensitive enzyme-linked immunosorbent assay format. The mean sHLA-G levels were lower and sHLA-I levels higher in the RA patients than in healthy controls. Correlation coefficients of 0.248 to 0.344 (p < 0.01) between sHLA-G and rheumatoid factor, CRP, and EULAR joint swelling score were found. Patients with disease-associated HLA epitopes had higher sHLA-G levels than those without. Significantly lower sHLA-G was observed in groups of patients having HLA-DRB1*03 or HLA-DQB1*02 compared to groups without these genotypes. In contrast, HLA-DQB1*03 or disease-associated epitopes combined with HLA-DQB1*03 were associated with higher sHLA-G levels, whereas the inverse was observed in the combined presence of HLA-DRB1*03 and HLA-DQB1*02. SHLA-G as a percentage of sHLA-I was lower in patients positive for HLA-DQB1*02 and higher in patients positive for HLA-DQB1*03 and in its combined presence with disease-associated epitopes or with HLA-DRB1*07. As especially sHLA-G strongly inhibits T and natural killer (NK) cell functions, low sHLA-G suggests that T and NK cell activities are not efficiently restricted by sHLA-G molecules in rheumatoid arthritis. The sHLA-G levels, however, increase in correlation with parameters of disease activity and appear to be affected by the presence of disease-predisposing epitopes and other HLA-DRB1, DQB1 genotypes.
    MeSH term(s) Arthritis, Rheumatoid/blood ; Arthritis, Rheumatoid/immunology ; Epitopes/immunology ; Female ; Genetic Predisposition to Disease ; HLA Antigens/blood ; HLA-DQ Antigens/blood ; HLA-DQ beta-Chains ; HLA-DR Antigens/blood ; HLA-DRB1 Chains ; HLA-G Antigens ; Histocompatibility Antigens Class I/blood ; Humans ; Male ; Membrane Glycoproteins/blood ; Middle Aged
    Chemical Substances Epitopes ; HLA Antigens ; HLA-DQ Antigens ; HLA-DQ beta-Chains ; HLA-DQB1 antigen ; HLA-DR Antigens ; HLA-DRB1 Chains ; HLA-G Antigens ; Histocompatibility Antigens Class I ; Membrane Glycoproteins
    Language English
    Publishing date 2006-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 801524-7
    ISSN 1879-1166 ; 0198-8859
    ISSN (online) 1879-1166
    ISSN 0198-8859
    DOI 10.1016/j.humimm.2006.03.023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1597: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article: Soluble HLA-DR levels in serum are associated with therapy and genetic factors in rheumatoid arthritis.

    Verbruggen, Leon A / Versaen, Hendrik / Rebmann, Vera / Duquet, William / De Cock, Seija / Grosse-Wilde, Hans / Demanet, Christian

    Human immunology

    2002  Volume 63, Issue 9, Page(s) 758–764

    Abstract: As rheumatoid arthritis (RA) is an HLA-DR associated autoimmune disease and soluble HLA-DR (sHLA-DR) molecules have the capacity to regulate the immune response, we studied the sHLA-DR levels in RA patients in view of therapy modalities and clinical and ... ...

    Abstract As rheumatoid arthritis (RA) is an HLA-DR associated autoimmune disease and soluble HLA-DR (sHLA-DR) molecules have the capacity to regulate the immune response, we studied the sHLA-DR levels in RA patients in view of therapy modalities and clinical and biologic parameters of disease activity. For this sHLA-DR concentrations from 87 RA patients were determined by a sensitive enzyme-linked immunoabsorbent assay (ELISA) format. There was a weak but significant correlation between sHLA-DR levels and disease activity (r 0.186 to 0.287, p < 0.004 to < 0.001). The mean serum sHLA were not significantly different between groups with or without corticosteroids, or undergoing therapy with different disease modifying antirheumatic drugs. However, patients treated with a combination of methotrexate and prednisolone have lower sHLA-DR (206 +/- 21 ng/ml, n = 34) compared with the mean value for all other samples (306 +/- 16, n = 217, p < 0.001). This corresponded with significantly lower EULAR pain and swelling scores, ESR and rheumatoid factor (RF) by latex fixation (p < 0.02 to 0.001) in the former, compared with the latter group. Furthermore, sHLA-DR was, respectively, 267 +/- 15 ng/ml (n = 182) in samples from patients treated with nonsteroidal anti-inflammatory drugs (NSAIDs), and 358 +/- 31 (n = 72) without NSAIDs (p < 0.01). Lower sHLA-DR with NSAIDs contrasted with significantly higher scores for pain, swelling, CRP, and RF by latex fixation and by Waaler-Rose test (p < 0.05 to 0.001). Comparison of subgroups with or without the shared epitope of RA disease (Q)R/KRAA within the HLA-DR beta1-chain confirmed significantly higher parameters of disease activity and sHLA-DR in the presence of this disease associated epitope in our patients. Different mechanisms appear to be involved in sHLA-DR production or release, as their level correlates positively with disease activity under combined therapy with corticosteroids and methotrexate, but decreases with higher disease activity in patients treated with NSAIDs.
    MeSH term(s) Adrenal Cortex Hormones/therapeutic use ; Adult ; Aged ; Aged, 80 and over ; Anti-Inflammatory Agents, Non-Steroidal/therapeutic use ; Arthritis, Rheumatoid/drug therapy ; Arthritis, Rheumatoid/genetics ; Arthritis, Rheumatoid/immunology ; Epitopes/blood ; Epitopes/genetics ; Female ; HLA-DR Antigens/blood ; HLA-DR Antigens/chemistry ; HLA-DR Antigens/genetics ; Humans ; Male ; Methotrexate/therapeutic use ; Middle Aged ; Prednisolone/therapeutic use ; Solubility
    Chemical Substances Adrenal Cortex Hormones ; Anti-Inflammatory Agents, Non-Steroidal ; Epitopes ; HLA-DR Antigens ; Prednisolone (9PHQ9Y1OLM) ; Methotrexate (YL5FZ2Y5U1)
    Language English
    Publishing date 2002-02-28
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 801524-7
    ISSN 1879-1166 ; 0198-8859
    ISSN (online) 1879-1166
    ISSN 0198-8859
    DOI 10.1016/s0198-8859(02)00431-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 1597: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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