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  • Title: Hepatitis B virus-reactive human T lymphocyte clones: antigen specificity and helper function for antibody synthesis.
    Author: Celis E, Kung PC, Chang TW.
    Journal: J Immunol; 1984 Mar; 132(3):1511-6. PubMed ID: 6198394.
    Abstract:
    To study immunity to hepatitis B surface antigen (HBsAg) at the cellular level, lymphocytes were obtained from the peripheral blood of hepatitis B vaccine recipients and were examined for various immune responses to HBsAg in vitro. The peripheral blood mononuclear cells (PBM) from most of the vaccinees did not proliferate to a great extent to HBsAg in vitro. However, HBsAg-reactive lymphocyte lines and clones were obtained from some of these individuals if the PBM were stimulated in vitro with HBsAg and were maintained in the presence of T cell growth supplement. Most of the HBsAg-reactive T cell clones obtained were found to be antigen-specific and some of them provided help in the production of anti-HBsAg antibodies by a cell population enriched for HBsAg-binding cells. These results indicate that HBsAg-specific T and B cells exist in the circulation of hepatitis B vaccine recipients, although they are at limiting concentrations for the in vitro cell proliferation and antibody production assays.
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