Figure 3

Immunoreactivity for CS epitopes in hindbrain sections of E13.5 _{(+1 DIV)} hindbrain sections. (A-H) Staining for the CS-56 epitope following control treatment with PBS (A,B,E,F) and the 2B6-stub epitope following Ch^ABC treatment (C,D,G,H). Images correspond to the boxed region shown in the schematic diagram of the hindbrain section in (A). Zoomed-in views of the hindbrain matrix are shown below the corresponding images of the hindbrain sections. Asterisks indicate the region of the fourth ventricle; arrowheads indicate the outline of the ventricular surfaces of the hindbrain. Sections are 14 μm. Scale bars: 100 μm (upper panels); 50 μm (lower panels).