CDH1 and ocular melanoma: Cluster 4 (blue nodes) focused on the mechanisms by which the OM affects CA, including inflammation (NF-kappa-b, Toll-like receptors), immunity (such as T cells, dendritic cells, epithelial cells, and e-cadherin), apoptosis, gene expression (overexpression, activation, downregulation, and proliferation), epithelial–mesenchymal transition, and oxidative stress.