Normal neurodevelopment in the CNS of ADAM22-deficient mice. Sagittal sections of the cerebellum from wild-type mice (A, C, E, G) and homozygous mutants (B, D, F, H) at postnatal day 13 were stained for calbindin (C and D; green) or MBP (G and H; green), and were counterstained with DAPI (A, B, E, F; blue). Significant abnormalities were not observed in the homozygotes. Hippocampal neurons were stained by anti-Neu N antibody (I and J). Spinal myelin was analysed by MBP staining (K and L). These analyses showed no obvious differences between homozygotes (J, L) and wild-type littermates (I, K). Bar: (A, B, E, F) 100 μm, (K, L) 250 μm.