The ssGSEA was used to assess the relative abundance of each cell's infiltration in tumour tissues and showed that activated B cell, activated CD8 T cell, activated dendritic cell, immature B cell, macrophage, mast cell, monocyte, natural killer T cell, plasmacytoid dendritic cell, regulatory T cell, T follicular helper cell, Type 1 T helper cell, Type 17 T helper cell were the highest in the Cluster B (Fig. 3C). Here, CD8A is linked to neoplasm.