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  • Title: Disordered immunoregulatory functions in patients with chronic active hepatitis.
    Author: Nonomura A, Tanino M, Kurumaya H, Ohta G, Kato Y, Kobayashi K.
    Journal: Clin Exp Immunol; 1982 Mar; 47(3):595-605. PubMed ID: 6211306.
    Abstract:
    Peripheral T lymphocytes from patients with chronic active hepatitis (CAH) showed a significantly decreased suppressor cell (or increased helper cell) effect on differentiation of allogenic B cells to Ig-producing cells (Ig-PC). Spontaneous helper cell activity as measured after irradiation of T cells appeared normal, while Concanavalin A (Con A)-induced suppressor cell activity was significantly reduced. Some patients of chronic persistent hepatitis (CPH) also showed mild depression of Con A-induced suppressor cell activity. Poor suppressor cell activity in CAH was much more often seen in HBsAg negative, autoantibody positive patients than in HBsAg positive autoantibody negative ones. Autologous mixed lymphocyte reaction (AMLR) was significantly decreased in patients with CAH. Also, a serum factor(s) that decreased Con A-induced suppressor cell function of healthy subjects could be demonstrated in some patients with CAH and CPH. Our results suggest that altered immune responses observed in CAH may be due to defective suppressor cell function, partly attributable to serum factor(s).
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