Fig. 6. A comparison of
PR+/-;
N89ß-catenin and
PR-/-;
N89ß-catenin glands.
(A,C,E)
PR+/-;
N89ß-catenin;
(B,D,F)
PR-/-;
N89ß-catenin. Hematoxylin and Eosin
staining (A,B) shows that
N89ß-catenin induces bilayered,
secretion-filled structures. Note that alveolar lumen diameters are
significantly larger in PR-/-;
N89ß-catenin
glands. Functional alveolar differentiation is demonstrated by
immunohistochemistry for casein expression (C,D) and Oil Red O staining (E,F)
to detect lipid droplets in alveoli. (G) Average alveolar luminal area
in PR+/-;
N89ß-catenin (gray) and
PR-/-;
N89ß-catenin (black) glands. Scale bars:
50 µm.