The transport of Teffs to the TME and their infiltration into tumor tissues are primarily mediated by the interaction between chemokines and their receptors 51, with C-X-C motif chemokine ligand 9 (CXCL9) and C-X-C motif chemokine ligand 10 (CXCL10) acting as key chemokines in this recruitment process. Here, CXCL9 is linked to neoplasm.