Fig. 2
From: ELF5 and DOK7 regulation in anti-estrogen treated cells and tumors
Hormone receptor status of cell lines. Immunohistochemistry results for estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) in MCF-7, and a representative tamoxifen-selected clonal cell line (clone 3) are shown. Images were taken at ×200 original magnification. PR staining was weaker in 85 % of the tamoxifen-selected clones compared to the parent cell line