ATF3 and cancer: In the top 20 upregulated DEGs of lymph node‐derived exhausted CD8+ T cells (Figure 7B), CXCL13, CXCR4, CH25H, HSPD1, HSP90AA1, and ATF3 have been confirmed to promote lymph node metastasis in several cancer types.115, 116, 117, 118, 119, 120