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  • Title: Interferon-gamma receptors on T cells in patients with chronic liver disease.
    Author: Kakumu S, Yoshioka K, Fuji A, Tahara H.
    Journal: Hepatogastroenterology; 1988 Aug; 35(4):158-61. PubMed ID: 2972598.
    Abstract:
    Interferon-gamma (IFN-gamma) appears to be important for the activation of T cells, and its binding to IFN-gamma receptors on T cells is an essential step for its actions. We investigated the expression of IFN-gamma receptors on T cells in chronic liver disease using radioiodinated recombinant interferon-gamma binding assay, and by Scatchard analysis. The mean numbers of IFN-gamma receptors on T cells from controls, asymptomatic hepatitis B virus carriers (ASC), patients with chronic active hepatitis (CAH), and patients with liver cirrhosis (LC) were 2,205 +/- 497, 2,494 +/- 1,074, 1,925 +/- 735, and 1,666 +/- 653, respectively. The numbers of IFN-gamma receptors on T cells from the patients with LC were significantly smaller than those of controls (P less than 0.05). Kids of IFN-gamma receptor on T cells from control and patient groups were 2.3 4.8 x 10(-9) M, and there was no significant difference among the groups. The percentage of T cells reactive with OKT3, OKT4, or OKT8 was similar in control and patient groups. These findings suggest that the decrease in IFN-gamma receptors in LC is not related to the activity of the liver damage, but is associated with the severity of the underlying disease. The normal expression of IFN-gamma receptors on T cells from CAH may provide a reasonable basis for IFN-gamma therapy to type B CAH.
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