Fig. 3.

Cell-cell interactions between cell types in 8 tissues expressing ACE2. (A) The cell-cell interaction analysis was conducted by CellPhoneDB. Cell types are nodes and interactions are edges. Red nodes indicate major cell types expressing ACE2 in each tissue. Size of cell type is proportional to the total number of interactions with the red nodes. (B) The cytokines that connected ACE2-expressing cells and the macrophages. Macrophages expression receptors and ACE2-expressing cells express ligands.