RELL2 and cancer: RELL2 expression level was significantly correlated with TMB in UCEC, THYM, COAD, and CESC (Figure 6(g)) and significantly correlated with MSI in 16 cancer types, including UCEC, THCA, PRAD, LUSC, LUAD, HNSC, COAD, and BRCA (Figure 6(h)).