CD8A and neoplasm: When bulk lymphocytes from tdLNs of B16-F10-zsGreen-GP33-tumor-bearing mice were co-cultured with bulk splenocytes from P14 mice (mice bearing naive CD8 T cells with specificity for GP33) for 4 days, fewer CD8 T cells had undergone proliferation, as determined by the absence of CellTraceViolet (Figure 4D).