CD8A and neoplasm: IL-7 also induced sCD127 secretion by tissue-infiltrating CD8+ T cells from both tumor tissues (83.44 ± 13.59 pg/mL vs. 102.5 ± 7.47 pg/mL; P = 0.0068, Fig. 2i) and para-tumor tissues (119.9 ± 3.67 pg/mL vs. 110/5 ± 3.45 pg/mL; P = 0.0003, Fig. 2i).