Figure 1.

TnC expression in the SEZ. A, B, Xgal staining (blue pseudocolor) and GFAP immunohistochemistry colabeling in the SEZ and RMS (asterisks indicate Xgal/GFAP-negative neuroblast clusters). C–G, Double immunolabeling of TnC with different cell markers in the SEZ (C–E, G) and the RMS (F). Arrows indicate PSA-NCAM, GFAP (monoclonal antibody) and Mash1-positive cells. A representative image of PSA-NCAM-positive clusters contained within GFAP-positive tubes is shown in G. The positioning of the different cell types relative to the TnC immunopositive zone is summarized in (H). Scale bars: 15 μm.