Effect of BCG on Alloimmune Cell-Mediated Cytotoxicity in (C57BL/6J ♀ × A/J ♂)F1 Mice. II. Correlation With BCG Activity in Syngeneic Tumor Systems2

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Abstract
The effectiveness of selected BCG regimens to produce an activation of cell-mediated cytotoxicity (CMC) in an allogeneic tumor system was compared with its ability to cause tumor regression in syngeneic tumor systems. In the tumor system selected In both Inbred LEW rats and inbred C57BL/6J and (C57BL/6J♀ × A/J♂)F1 mice, a correlation was observed in that BCG treatments that caused marked CMC activation in the allogeneic tumor systems also effectively caused tumor regression and increased animal survival in syngeneic systems. It was concluded that the allogeneic CMC reaction can be used to predict the capacity of BCG to cause tumor rejection.