PEG(15) NPs promoted tumor infiltration of CD8+ T cells (Figure 6G), with significantly increased frequency of Adpgk‐specific CD8+ T cells (28 ± 9.0%), representing 14‐ and 3.2‐fold increases over PBS and soluble Adpgk + CpG, respectively (Figure 6H). Here, CD8A is linked to neoplasm.