IL15 and glioblastoma: In addition, DSS (disease-specific survival) of ESCA (p = 0.029), COADREAD (p = 0.004), COAD (p = 0.047), LUAD (p = 0.037), READ (p = 0.017), and SKCM (p < 0.001) were also positive correlated with IL-15 expression level, while that of GBM (p = 0.005) and LGG (p < 0.001) was negative correlated with IL-15 levels.