ESR1 and breast cancer: Specifically, we evaluated all available proteins for the genes listed in Table 1 for ER-positive IBC, ER-negative IBC, and normal breast, as well as the top 50 most connected genes (with the largest degree) from the ER-positive IBC, ER-negative IBC, and normal breast epithelial stromal networks in both the normal and breast cancer samples from the Human Protein Atlas.