From the hierarchical clustering we noted [1] a strong positive correlation between expression of CYTOR and MIR4435-2HG – two homolog non-coding RNA genes reported to be correlated with patients’ poor prognosis in glioblastoma and in low-grade glioma [33] – and [2] an anticorrelation between expression of genes in the second and third clusters. This evidence concerns the gene CYTOR and glioblastoma.