In addition, CCL20, CXCL10, CCL5, CXCR6, CXCL13, CXCL11 and CXCL9 are chemokines that can recruit immune cells to the tumor microenvironment, which affects tumor immunity and angiogenesis (Lee & Körner, 2019; Tokunaga et al., 2018; Zhang et al., 2018; Singh et al., 2016; Gao et al., 2019). This evidence concerns the gene CXCR6 and neoplasm.