ITGB1 and hepatocellular carcinoma: Receptor‐ligand bubble plot analysis further revealed that cell adhesion‐related ligand‐receptor pairs (e.g., integrin family and cadherins) were markedly upregulated in the HCC group Treg‐endothelial cell interactions, among which the communication intensity of ITGB1 and its ligand JAM2 was the most prominent.