Fig. 9.
p15INK4b is ectopically expressed in the perichondrium, on forming cartilage, and in the ventricular zone of the lateral ventricle in ZEB1 gene null mice. A and C. Immunostaining for p15INK4b on forming cartilage. B and D. Overlay of the immunostaining in panels A and C with a Nomarski image. E and F. Immunostaining for p15INK4b in the ventricular zone of the lateral ventricle. G and H. Immunostaining for BrdU and p15INK4b, respectively, in the ventricular zone of the lateral ventricle. I. Overlay of panels G and H. Immunostaining of E15.5 embryos is shown. The bar is 50 μm.