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Comparative Study
. 2000 Jul;59(7):544-8.
doi: 10.1136/ard.59.7.544.

Raised human cartilage glycoprotein-39 plasma levels in patients with rheumatoid arthritis and other inflammatory conditions

K Vos  1 , P Steenbakkers, A M Miltenburg, E Bos, M W van Den Heuvel, R A van Hogezand, R R de Vries, F C Breedveld, A M Boots
Affiliations
Comparative Study

Raised human cartilage glycoprotein-39 plasma levels in patients with rheumatoid arthritis and other inflammatory conditions

K Vos et al. Ann Rheum Dis. 2000 Jul.

Abstract

Objective: To evaluate plasma human cartilage glycoprotein (HC gp-39) as a possible marker for the presence and/or activity of rheumatoid arthritis (RA) and other inflammatory conditions.

Background: HC gp-39 is a secretory product of chondrocytes, synovial cells, macrophages, and neutrophils. HC gp-39, also described as YKL-40, was found to be a marker of joint disease and tissue injury in RA and various other diseases.

Methods: Levels of HC gp-39 were determined by a sandwich enzyme linked immunosorbent assay (ELISA) in 47 patients with RA, 47 with osteoarthritis (OA), 24 with systemic lupus erythematosus (SLE), 24 with inflammatory bowel disease (IBD), and in 47 healthy controls. A disease activity score was assessed in the patients with RA, SLE, and IBD.

Results: The plasma level of HC gp-39 in the RA patient group was significantly higher than in the other patient groups and healthy controls. The level in patients with OA, SLE, and IBD was also significantly higher than the HC gp-39 level found in the healthy control group. HC gp-39 levels in patients with RA correlated positively with the ESR and IgM rheumatoid factor level but not with other variables of disease activity. In the patients with SLE and IBD no correlation was found with the disease activity score.

Conclusion: The plasma level of HC gp-39 is increased in inflammatory conditions with and without joint disease (SLE, IBD, OA, and RA). Thus increased levels of HC gp-39 do not only reflect joint disease but also reflect inflammation or tissue degradation in various conditions. Notably, the highest level of HC gp-39 was found in patients with RA. Only in the RA patient group was a correlation between HC gp-39 plasma levels and some laboratory variables of disease activity found.

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Figures

Figure 1
Figure 1
Human cartilage glycoprotein-39 (HC gp-39) levels in different patient groups. IBD = inflammatory bowel disease; OA = osteoarthritis; RA = rheumatoid arthritis; SLE = systemic lupus erythematosus.
See this image and copyright information in PMC

References

    1. Gastroenterology. 1976 Mar;70(3):439-44 - PubMed
    1. Rheumatology (Oxford). 1999 Jul;38(7):618-26 - PubMed
    1. Arthritis Rheum. 1982 Nov;25(11):1271-7 - PubMed
    1. Arthritis Rheum. 1988 Mar;31(3):315-24 - PubMed
    1. Biochem J. 1990 Jul 1;269(1):265-8 - PubMed

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