For example, CX3CL1 as a chemokine has been associated with better patient outcomes by recruiting NK and CD8+ T cells in gastric adenocarcinoma [23]; paradoxically, CX3CL1 was also found to stimulate the proliferation of gastric and ovarian cancer cells by activating EGFR [24, 25]. Here, CX3CL1 is linked to ovarian cancer.