CX3CL1 and sarcoma: In light of this, the TIMER2 database was utilized to investigate the possibility of a correlation between CX3CL1 and CD4+ T cell infiltration were observed in colon adenocarcinoma (COAD), LIHC, GBM, PRAD, KIRC, LUAD, HNSC, THCA, and sarcoma (SARC) based on the EPIC and TIMER algorithms (Figure 5A).