To characterize the complex communication between different immune cell types in the liver immune microenvironment of AIH, we employed cellphoneDB (v2) to construct a cell–cell interaction network.[28] Diverse interactions were observed between multiple immune cell types, including MoMFs, B cells, CD4+ T cells, and CD8+ T cells (Figure 8A–D). This evidence concerns the gene CD4 and autoimmune hepatitis.