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Figure 4 | Breast Cancer Research

Figure 4

From: Estrogen receptor-α and progesterone receptor are expressed in label-retaining mammary epithelial cells that divide asymmetrically and retain their template DNA strands

Figure 4

Periductal stromal cells retain nuclear label. The nuclear label [3H]thymidine is detected in mammary tissue that has been processed for (a) ER-α or (b) PR following a 7-week chase period. Black arrows indicate periductal stromal cells that are [3H]thymidine positive. Scale bars = 5 μm. ER, estrogen receptor; PR, progesterone receptor.

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