Abstract
In the course of the culture of an autologous mixed lymphocyte reaction (AMLR), T cells proliferated in response to autologous non-T cells, and differentiated to cytotoxic T cells (AMLR killers). DNA synthesis was necessary to generate AMLR killers, as the elimination of autoreactive proliferating cells with BUdR and UV light completely abrogated AMLR killer cytolysis. Amlr killers lysed various lymphoid cell lines, including autologous B cell lines, autologous or allogeneic mitogen blasts stimulated by Con A, PHA, or pokeweed mitogen, variious nonlymphoid cell lines derived from human, mouse, or rat, and weakly normal autologous or allogeneic non-T cells. KMT-17, methylcholanthrene-induced rat fibrosarcoma, was the only resistant cell line to have been tested. AMLR killers had characteristics similar to NK cells, Major histocompatibility antigens were not the target antigens for AMLR killers. AMLR killers distinguished the blasts stimulated by alloantigens as self from the blasts stimulated by mitogens as non-self.
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