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  • Title: Lymphocyte proliferation to phytohemagglutinin (PHA) in hepatitis B antigen-positive and -negative hepatitis.
    Author: Sodomann CP, Rother M, Havemann K, Martini GA.
    Journal: Res Exp Med (Berl); 1979 Apr 23; 175(1):95-107. PubMed ID: 441526.
    Abstract:
    Lymphocytes from patients with HBs-Ag-positive and -negative acute, chronic-persistent, and chronic-active hepatitis, from healthy controls and from patients with alcoholic liver cirrhosis were tested under standardized conditions. These included use of a single charge of Phytohemagglutinin (PHA-P) dissolved and diluted in one operation, of a single pool of homologous serum of the major blood group AB found free of HBs-Ag and cytotixic factor, and elaboration of PHA dose response curves in the presence of autologous and homologous serum in each case examined. During the early phase of acute virus hepatitis B and non-B, and in HBs-Ag-positive chronic persistent and active hepatitis, hyperresponsiveness of lymphocytes to PHA was observed independently of the source of the serum present in the culture. Lymphocyte responsiveness returned to normal in the later phase of acute hepatitis and depressed in alcoholic liver cirrhosis and in cases of HBs-Ag-positive chronic active hepatitis in which cirrhosis had developed. Although the cause of these alterations in lymphocyte responsiveness is not completely understood, the central role of a primary change of the lymphocytes themselves affecting their ability to react to PHA seems probable.
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