CD8A and neuroblastoma: Kaplan–Meier analysis revealed that T-cells were associated with a good prognosis in NB, WILMS and RMS (Figure 2b), which was consistent with the results of the GO enrichment analysis and with previous results on the favorable prognostic value of T-cells in ESFT [18]; whereas, surprisingly, T-cells, in particular CD8 T-cells, were associated with a shortened OS in OSTEO (Figure 2b,c).