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Circulating interleukin 10 and interleukin-6 serum levels in rheumatoid arthritis patients treated with methotrexate or gold salts: Preliminary report

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Abstract

In order to evaluate the relationship between serum concentrations of interleukin-10 (IL-10), IL-6, and acute phase proteins in rheumatoid arthritis (RA) patients treated with methotrexate (MTX) or intramuscular gold (IMG) we determined IL-10, IL-6, C-reactive protein (CRP), alpha-1-acid glycoprotein (AGP) and alpha-1-antichymotrypsin (ACT) in the sera of 35 RA patients. IL-10 and IL-6 levels were evaluated using an enzyme-linked immunoassay (ELISA). AGP and ACT level were measured using rocket immunoelectrophoresis. IL-10 serum level was not increased in RA patients as compared to controls (58.7 ± 18.1 pg/ml vs. 57.2 ± 11.9 pg/ml). IL-6 level was significantly elevated (91.6 ± 46.9 pg/ml vs. 45 ± 19 pg/ml, p < 0.05). CRP was significantly increased as compared to healthy controls (35 ± 19 mg/l vs. 3 ± 2 mg/l, p < 0.05). Patients treated with MTX or IMG presented an increased level of IL-10 and decreased amounts of IL-6, as compared to those treated with NSAID only. However, only changes between patients treated with IMG and NSAID were found to be statistically significant. A good negative correlation between IL-10 and IL-6 serum level was found (r = −0.75, p < 0.05). A positive significant correlation between IL-6 serum level and CRP (r = 0.62, p < 0.05), AGP (r = 0.78, p < 0.05) and ACT (r = 0.45, p < 0.05) was established. On the other hand, a negative correlation between IL-10 and serum level of CRP (r = −0.76, p < 0.05), AGP (r = −0.64, p < 0.05) and ACT (r = −0.38, p < 0.05) was also observed. Moreover, these relationships were maintained when patients treated with MTX, IMG, or NSAID were analyzed independently. According to the data thus far obtained, it seems that IL-10 decreases IL-6 production, and thereby indirectly affects the acute phase response, decreasing CRP, AGP, and ACT concentration in RA patients.

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Abbreviations

ACT:

α-1-antichymotrypsin

AGP:

α 1-acid glycoprotein

APP:

acute phase protein

CRP:

C-reactive protein

CSF:

colony stimulating factor

IFN:

interferon

IL:

interleukin

IMG:

intramuscular gold

MTX:

methotrexate

NSAID:

non-steroidal anti-inflammatory drug

RA:

rheumatoid arthritis

References

  1. Fiorentino DF, Bond MW, Mosmann TR. Two types of mouse T helper cells. IV. Th2 clones secrete a factor that inhibits cytokine production by Th1 clones. J Exp Med 1989;170:2081–8.

    Google Scholar 

  2. Moor KW, Vieira P, Fiorentino DF, Trounstine ML, Khan TA, Mosmann TR. Homology of cytokine synthesis inhibitory factor (IL-10) to the Epstein—Barr virus gene BCRFI. Science 1990;248:1230–4.

    Google Scholar 

  3. Fiorentino DF, Zlotnik A, Mosmann TR, Howard M, O'Garra A. IL-10 inhibits cytokine production by activated macrophages. J Immunol 1991;147:3815–22.

    Google Scholar 

  4. Vieira P, de Waal-Malefyt R, Dang MN, Johnson KE, Kastelein R, Fiorentino DF et al. Isolation and expression of human cytokine synthesis inhibitory factor cDNA clones: Homology to Epstein—Barr virus open reading frame BCRFI. Proc Natl Acad Sci USA 1991;88:1172–9.

    Google Scholar 

  5. Fiorentino DF, Zlotnik A, Vieira P, Mosmann TR, Howard M, Moore KW. IL-10 acts on the antigen-presenting cell to inhibit cytokine production by Th1 cells. J Immunol 1991;146:3444–51.

    Google Scholar 

  6. de Waal-Malefyt R, Abrams J, Bennett B, Fidgor CG, de Vries JE. Interleukin 10 inhibits cytokine synthesis by human monocyte: an autoregulatory role of IL-10 produced by monocytes. J Exp Med 1991;174:1209–20.

    Google Scholar 

  7. Rau R, Herborn G, Kargar T et al. A double blind randomized parallel trial of intramuscular methotrexate and sodium thiomalate in early erosive rheumatoid arthritis. J Rheumatol 1991;18:328–33.

    Google Scholar 

  8. Andus T, Geiger T, Hirano T, Northoff H, Ganter U, Bauer J et al. Recombinant human B-cell stimulatory factor-2 (BSF-2/IFN-beta 2) regulates beta fibrinogen and albumin mNA levels in Fao-9 cells. FEBS Lett 1987;221:18–22.

    Google Scholar 

  9. Gauldie J, Richards C, Harnish D, Landsdorp P, Baumann H. Interferon beta-2/B-cell stimulatory factor type 2 shares identity with monocyte-derived hepatocyte-stimulating factor and regulates the major acute phase response in liver cells. Proc Natl Acad Sci USA 1987;84:7251–55.

    Google Scholar 

  10. Bowen M, Rayses JG, Cooper EH, Glass M. Changes in the relative amount of individual microheterogenous forms of serum alpha-1-antichymotrypsin in disease. In: Bog-Hansen TC editors, Lectins, Berlin-New York, Walter de Gruyter 1982;2:403–11.

    Google Scholar 

  11. Mackiewicz A, Pawlowski T, Mackiewicz-Pawlowska A, Wiktorowicz K, Mackiewicz S. Microheterogeneity of alpha-1-acid glycoprotein as indicator of rheumatoid arthritis activity. Clin Chim Acta 1987;163:185–90.

    Google Scholar 

  12. Furst DE, Koehnke R, Burmeister LF, Kohler J, Cargill I. Increasing methotrexate effect with increasing dose in the treatment of resistant rheumatoid arthritis. J Rheumatol 1989;16:313–3.

    Google Scholar 

  13. Arnet FC, Edworthy SM, Bloch DA, McShane DJ, Fries JF, Cooper NS et al. The American Rheumatism Association 1987 revised criteria for the classification of rheumatoid arthritis. Arthritis Rheum 1988;31:315–24.

    Google Scholar 

  14. Mallya RK, Mace BEW. The assessment of disease activity in rheumatoid arthritis using a multivariate analysis. Rheumatol Rehabil 1981;20:14–7.

    Google Scholar 

  15. Laurell CB. Quantitative estimation of proteins by electrophoresis in agarose gel containing antibodies. Scand J Clin Invest 1973;124 (Suppl):2–28S.

    Google Scholar 

  16. Brozik M, Rosztoczy I, Meretey K, Balint G, Gaal M, Balogh Z, et al. Interleukin 6 levels in synovial fluid of patients with different arthritides; correlation with local IgM rheumatoid factor and systemic acute phase protein production. J Rheumatol 1992;19:63–8.

    Google Scholar 

  17. Hirano T, Akira S, Taga T, Kishimoto T. Biological and clinical aspects of interleukin 6. Immunology Today 1991;11:443–9.

    Google Scholar 

  18. Janossy G, Panayi G, Duke O, Bofill M, Poulter EQ, Goldstein G. Rheumatoid arthritis: a disease of T-lymphocyte/macrophage immunoregulation. Lancet 1981:839–42.

  19. Barrera P, Boerbooms AMT, Janssen EM, Sauerwein RW, Gallati H, Mulder J et al. Circulating soluble tumor necrosis factor receptors, interleukin-2 receptors, tumor necrosis factor alpha, and interleukin-6 levels in rheumatoid arthritis. Arthritis Rheum 1993;36:1070–8.

    Google Scholar 

  20. Madhok R, Crilly A, Murphy E, Smith J, Watson J, Capell HA. Gold therapy lowers serum interleukin-6 levels in rheumatoid arthritis. J Rheumatol 1993;20:630–3.

    Google Scholar 

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Lacki, J.K., Klama, K., Mackiewicz, S.H. et al. Circulating interleukin 10 and interleukin-6 serum levels in rheumatoid arthritis patients treated with methotrexate or gold salts: Preliminary report. Inflamm Res 44, 24–26 (1995). https://doi.org/10.1007/BF01630483

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