CXCL13 and cancer: CXCL13 expression levels were positively related to TMB in 5 cancer types (UCEC, KICH, OV, CESC, and COAD) but negatively related to TMB in 6 different cancer types, including HNSC, TGCT, KIRP, PAAD, MESO and THCA (Figure 6C).