text:  BT-474 cell line_HER2 siRNA siRNA_10 nM Estrogen_4 hrs_Replica 1. BT-474_HER2 siRNA siRNA_10 nM Estrogen_4 hrs cell line: BT-474; genotype/variation: HER-2 siRNA knockdown; treated with: 10 nM Estrogen; treatment duration: 4 hours