GSE40867
Global mapping of estrogen receptor and histone modifications in breast tumor samples uncovers distinct patterns for aromatase inhibitor resistance
ChIP-seq on primary breast cancer tumor samples for Era, H3K4me3, H3K27me3. Patients had a poor or good outcome after aromatase inhibitor treatment. Differential binding patterns between good and poor outcome patients were identified for each marker, predicting response to treatment Overall design: comparing ER, H3K4me3 and H3K27me3 patterns between two breast cancer patient populations