CD8A and medulloblastoma: Analysing publicly available medulloblastoma scRNA-Seq, we identify positive enrichment of many cytokine-related Reactome pathways by GSEA (Fig. 6B and C) and greater cytokine receptor expression (Fig. 6D) in monocytes/macrophages, CD8+ T cells and neutrophils than in medulloblastoma tumour cells.