As shown in Figure 4, 18 cell types were significantly changed in DCM cardiac tissue compared to control samples, among which the scores of CD8+ T-cells, cDC, adipocytes, fibroblasts, and smooth muscle in DCM were significantly increased, while the scores of macrophages M1, Th1 cells were significantly decreased. This evidence concerns the gene CD8A and familial dilated cardiomyopathy.