Fig. 5From: Adenovirus-directed Expression of Dominant Negative Estrogen Receptor Induces Apoptosis in Breast Cancer Cells and Regression of Tumors in Nude MiceInduction of positive TUNEL reaction. T47D cells were infected with AdGal (A), AdwtER (B), Ad1-536 (C), and AdL540Q (D) at an MOI of 5 PFU/cell. After 6 days of treatment with E2 (1 nM), the TUNEL assay was performed. Fluorescence (white) indicates TUNEL labeling. AdGal-infected cells were also stained with DAPI (violet) to show cell density.Back to article page