There are 14 multiscale hub genes including ROPN1, TPX2, TEKT1, FOXA1, ESR1, CCNT1, SDPR, THSD4, MLPH, TBC1D9, FOXC1, SPDEF, SFRP1, and AR. Many of these genes are known to play important roles in breast cancer etiology. This evidence concerns the gene ESR1 and breast cancer.