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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Serum levels of interleukin 6 (IL-6), oncostatin M, soluble IL-6 receptor, and soluble gp130 in patients with systemic sclerosis.

OBJECTIVE: To determine whether serum interleukin 6 (IL-6), oncostatin M (OSM), soluble IL-6 receptor (sIL-6R), and soluble gp130 (sgp130) levels in patients with systemic sclerosis (SSc) are elevated and whether they are correlated with the clinical or serological features of the disease. METHODS: Serum samples from patients with SSc (n = 55) and control subjects (n = 20) were investigated by ELISA. Patients were divided into 4 groups: 12 with limited cutaneous SSc (lSSc) < or = 3 years' duration (early lSSc), 22 with lSSc > 3 years' duration (late lSSc), 9 with diffuse cutaneous SSc (dSSc) < or = 3 years' duration (early dSSc), and 12 with dSSc > 3 years' duration (late dSSc). RESULTS: Serum IL-6 levels were significantly elevated in patients with early dSSc compared with controls. In addition, serum IL-6 was detected more frequently in patients with pulmonary fibrosis, and these values were inversely correlated with the percentage of vital capacity of individual patients. Furthermore, serum IL-6 levels were correlated with erythrocyte sedimentation rates, C-reactive protein, and IgG and IgA levels in patients. Serum sIL-6R levels were significantly higher in patients with lSSc versus controls. Serum OSM and sgp130 levels were not significantly elevated in patients with SSc compared with controls. CONCLUSION: We suggest that IL-6 and sIL-6R may contribute to the disease process in SSc. In particular, IL-6 may be related to the early phase of the disease and the development of pulmonary fibrosis in SSc.[1]

References

  1. Serum levels of interleukin 6 (IL-6), oncostatin M, soluble IL-6 receptor, and soluble gp130 in patients with systemic sclerosis. Hasegawa, M., Sato, S., Fujimoto, M., Ihn, H., Kikuchi, K., Takehara, K. J. Rheumatol. (1998) [Pubmed]
 
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