The results showed that CISD1 expression was significantly correlated with infiltrating levels of CD8+ T cells (r = 0.139, p = 0.00724), neutrophils (r = 0.114, p = 0.0276), macrophages (r = 0.226, p = 1.06E − 05), and dendritic cells (r = 0.165, p = 0.00136) in liver cancer (Figure 6). The gene discussed is CISD1; the disease is liver cancer.