Using the CIBERSORT method, we further evaluated the correlation between various T cell subtypes and PSMB8, and the results revealed a significant positive correlation between PSMB8 expression levels and CD8+ T cells in BRCA, CESC, UCEC, COAD, HNSC, KIRC, KIRP, LGG, LUAD, LUSC, OSCC, and THCA tumours (Figure 2). Here, CD8A is linked to neoplasm.