Figure 2
From: Selective segregation of DNA strands persists in long label retaining mammary cells during pregnancy
Periductal LRC are not myoepithelial cells. Sections from all experimental groups were stained for the myoepithelial marker SMA (brown). LRC (blue, 5BrdU) in periductal or peri-acinar positions are not SMA positive (arrows). (a) Group 1. (b) Group 2 cells are endothelial except for arrows. (c) Group3. (d) Group 4. Scale bars = 15 μm. 5BrdU, 5-bromodeoxyuridine; LRC, label-retaining cell; SMC, smooth muscle actin.