Figure 3From: Expression of truncated Int6/eIF3e in mammary alveolar epithelium leads to persistent hyperplasia and tumorigenesisMammary glands from multiparous WapInt6sh transgenic females show persistent alveolar hyperplasia. (a) Multiple focal alveolar hyperplasias (green arrows) are visible in this carmine alum stained whole mounted mammary gland from a multiparous WapInt6sh transgenic female. LN, lymph node. Magnification 10 ×. (b) A no. 4 mammary gland from a WapInt6sh multiparous female containing one focal hyperplasia at 10 × magnification. Inset panel shows the hyperplasia at higher magnification (25 ×). This gland and the gland shown in Panel A were each taken from mice with tumors in their contralateral no. 4 mammary glands. (c) Hematoxylin and eosin-stained 5 μm section through the focal hyperplasia shown in Panel B. Well defined acinar structures are visible at 100 × magnification surrounded by significant lymphocytic infiltration (green arrows). (d) Representative multiparous WapInt6sh mammary gland showing a more uniform persistence of alveolar hyperplasia. This female had three litters, the last of which was weaned 9 months before this gland was harvested.Back to article page