Journal
JOURNAL OF CLINICAL MEDICINE
Volume 11, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/jcm11144213
Keywords
heparan sulfate; heparin; sVCAM-1; MCP-1; MMP-9; ADMA; rheumatoid arthritis; anti-TNF-alpha treatment
Categories
Funding
- National Science Centre, Poland [2013/09/N/NZ5/00815]
- Medical University of Silesia, Katowice, Poland [PCN-2-064/K/1/I]
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This study investigated the effects of anti-TNF-alpha therapy on RA-associated atherosclerosis and found that the treatment reduced levels of HS/H and markers of endothelial dysfunction, providing a potential means for monitoring treatment efficacy.
Sulfated glycosaminoglycans (sGAGs) are likely to play an important role in the development and progression of rheumatoid arthritis (RA)-associated atherosclerosis. The present study investigated the effect of anti-tumor necrosis factor-alpha (anti-TNF-alpha) therapy in combination with methotrexate on plasma sGAG levels and serum markers of endothelial dysfunction. Among sGAG types, plasma chondroitin/dermatan sulfate (CS/DS) and heparan sulfate/heparin (HS/H) were characterized using electrophoretic fractionation. Serum levels of soluble vascular cell adhesion molecule-1 (sVCAM-1), monocyte chemoattractant protein-1 (MCP-1), matrix metalloproteinase-9 (MMP-9) and asymmetric dimethylarginine (ADMA) were measured by immunoassays. The measurements were carried out four times: at baseline and after 3, 9 and 15 months of anti-TNF-alpha therapy. All analyzed parameters, excluding ADMA, were significantly elevated in patients with RA before the implementation of biological therapy compared to healthy subjects. Performed anti-TNF-alpha treatment led to a successive decrease in HS/H levels toward normal values, without any effect on CS/DS levels in female RA patients. The treatment was also effective at lowering the serum levels of sVCAM-1, MCP-1, MMP-9 and ADMA. Moreover, a significant positive correlation was found between the circulating HS/H and the 28 joint disease activity score based on the erythrocyte sedimentation rate (DAS28-ESR, r = 0.408; p <0.05), MCP-1 (r = 0.398; p <0.05) and ADMA (r = 0.396; p <0.05) in patients before the first dose of TNF-alpha inhibitor. In conclusion, a beneficial effect of anti-TNF-alpha therapy on cell-surface heparan sulfate proteoglycans (HSPGs)/HS turnover and endothelial dysfunction was observed in this study. This was manifested by a decrease in blood HS/H levels and markers of endothelial activation, respectively. Moreover, the decrease in the concentration of HS/H in the blood of patients during treatment, progressing with the decline in disease activity, indicates that the plasma HS/H profile may be useful for monitoring the efficacy of anti-TNF-alpha treatment in patients with RA.
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