The Pearson's correlation coefficient between C16orf54 expression and 60 immune checkpoint genes, including 24 inhibitory genes and 36 stimulatory genes (Figure 6), was calculated, which showed that almost all immune checkpoint genes, except IFNA1 and IFNA2, were significantly positively coexpressed with C16orf54 in most tumours. This evidence concerns the gene C16orf54 and neoplasm.