TREM2 and hepatocellular carcinoma: Implementation of CellPhoneDB, which infers cell-cell communication networks from scRNAseq data, to HCC patient samples revealed interaction of TREM2+ LAM-like cells with Tregs via the CCL20/CXCL9/CXCL10/CXCL12-CXCR3 axis, suggesting recruitment of Tregs by the TREM2+ LAM-like cells by means of migration-related chemokines (27).