IL6 and central nervous system cancer: Kaplan–Meier analysis indicated that high expression of all 21 genes (CASP1, CASP3, CASP4, CASP5, CASP6, CASP8, GSDMA, GSDMB, GSDMC, GSDMD, IL18, IL1B, IL6, NLRC4, NLRP3, NOD1, NOD2, PLCG1, PRKACA, PYCARD, SCAF11) was associated with poor OS in low-grade glioma.