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  • Title: Serum levels of interleukin-10, interleukin-12 and soluble interleukin-2 receptor in chronic liver disease type C.
    Author: Kitaoka S, Shiota G, Kawasaki H.
    Journal: Hepatogastroenterology; 2003; 50(53):1569-74. PubMed ID: 14571788.
    Abstract:
    BACKGROUND/AIMS: It is still unclear whether and how Th1/Th2 type cytokines are involved in the progression of chronic liver disease type C. We therefore examined serum levels of IL-10, IL-12 and sIL-2R (soluble IL-2 receptor) in association with clinical parameters in chronic liver disease type C, whereas IL-12 and sIL-2R represent Th1 cytokine and IL-10 does Th2 cytokine, respectively. METHODOLOGY: Serum levels of IL-10, IL-12 and sIL-2R were measured in 110 patients, including 36 with chronic hepatitis, 24 with liver cirrhosis and 50 with hepatocellular carcinoma in comparison with 19 normal individuals, by an enzyme-linked immunosorbent assay. In 9 chronic hepatitis patients, serum levels of these cytokines were measured before and after interferon therapy. In 28 with hepatocellular carcinoma, they were also measured before and after transcatheter arterial embolization. RESULTS: Serum levels of IL-10 in chronic hepatitis, liver cirrhosis and hepatocellular carcinoma were 3.9 +/- 1.8 pg/mL, 5.7 +/- 6.4 pg/mL and 5.6 +/- 8.9 pg/mL, respectively. IL-10 level was significantly correlated with level of y-globulin. Serum levels of IL-12 in chronic hepatitis, liver cirrhosis and hepatocellular carcinoma were 347.4 +/- 150.3 pg/mL, 365.2 +/- 130.7 pg/mL and 399.4 +/- 258.2 pg/mL. sIL-2R levels in chronic hepatitis, liver cirrhosis and hepatocellular carcinoma were 614.6 +/- 223.5 U/mL, 878.7 +/- 330.5 U/mL and 1037.9 +/- 412.0 U/mL. Serum levels of IL-12 and sIL-2R were significantly elevated on day 7 after interferon therapy compared to day 0 (p < 0.05 and p < 0.001, respectively), while no significant difference was seen in IL-10. Serum level of IL-10 was significantly elevated on day 3, and that of sIL-2R was elevated on day 3 and 7 after transcatheter arterial embolization, while that of IL-12 was decreased on day 3 and 7. CONCLUSIONS: The results of the present study suggest that Th1/Th2 type cytokines are changed in association with progression of chronic liver disease type C and in response to therapy.
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