Abstract:Addition of supernatant from concanavalin A-stimulated spleen cells to in vitro primed cytolytic T lymphocytes in semisolid medium stimulated the growth of colonies of cytolytic lymphocytes. Optimal results were obtained using a peritoneal adherent cell underlayer where a 10% plating efficiency (greater than or equal to 4 cells per colony) was achieved when between 5000 and 100 000 cells were plated per dish. Individual colonies were harvested and tested in a short term (5h) 51Cr release microassay, employing … Show more
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