Cellular antibody in mice bearing Ehrlich cancer. II. Properties of lymphoid cells from sensitized animal

In the experiments conducted with cells from the spleen and regional lymphoid cells derived from the axillary and regional lymph nodes of the mice receiving subcutaneous transplantation of Ehrlich tumor cells, it has been demonstrated that these lymphoid cells possess an ability to inhibit the proliferation of the subtrain of Ehrlich tumor cells (JTC-11), and that there is a parallel relationship between the rate of appearance of immunologicallly competent cells among these sensitized lymphoid cells and the inhibitory effect of these cells on JTC-11. In the experiment to reinforce the potency of sensitized cells conducted by means of the diffusion chamber technique, it has been proven that, while it is not an absolute prerogative, it is necessary to have the sensitized lymphoid cells come in contact with the target cells is order to wield the power of the former to the fullest extent. In the tissue cultures of lymphoid cells, it has been shown that sensitized lymphoid cells has a shorter life span than non-sensitized ones.