Further studies on distribution of neural crest cells in prenatal or postnatal development in mice.

The neural crest cells showed a specific sensitivity to mitomycin C, and the neural crest cells in mice treated with mitomycin C were not stained by hematoxylin and eosin. Reports have already been made on the distribution of the neural crest cells in mice embryos of early stage in regard to the characteristics of the staining ability by mitomycin C (Nozue and Kirino 1973 ; Nozue 1973 ; Nozue 1974). There are not a few cells of which the origins are obscured and unsettled. Some of them are thought to be of the neural crest origin, therefore, further study on the distribution of the neural crest cells was done in the embryos, fetuses, and suckling mice.