PDCD1 and neoplasm: We found P14 DTR+ T cells in both the tumor and TdLN (Figure S6B), and eGFP was highly expressed in the PD-1+ Tcf-1+ stem-like subset in both the tumor and TdLN, but not in the Tcf-1− Tim3+ T cells from the tumor on day 19 (Figure 6A–6D).