Constitution of the ependyma in the chicken telencephalon.
The constitution of ependyma derived from the ventricular zone is different from that derived from other regions of the central nervous system. In the mammalian cerebrum, the ependyma is varied by the regions to cortex or basal ganglia (BG). In the avian telencephalon (Tc), previous studies about the constitution of the ependyma have not revealed clear findings. In the present study, we performed immunostaining of ependymal cells in the chicken Tc to confirm differences in the ependyma of various regions. As a result, 4 patterns of ependyma were defined in the outer side of the lateral ventricle. In the base of the lamina pallio-subpallialis (LPS), ependyma consisted of vimentin/glial fibrillary acidic protein (GFAP) double-positive cells, whereas in the base of the lamina frontalis superior, it consisted primarily of vimentin-positive cells and a small number of vimentin/GFAP double-positive cells. With the exception of the above, the pallial ependyma was a single layer containing vimentin single-positive cells. Lastly, the ependyma of the BG was rich in vimentin single-positive cells. The constitutional differences of the ependyma of the pallium and BG concerned differences in ependymal morphology and cell characteristics. These finding suggest that the bounder between pallium and BG is LPS at the point of ependyma.
The United Graduate School of Veterinary Science, Yamaguchi University, Yoshida.
Shinsuke
S
Uchida
Tomohiro
T
Imagawa
Masato
M
Furue
Safwat Ali Mohamed
SA
Ali
Yoshinao Z
YZ
Hosaka
Masato
M
Uehara
D000818:Animals; D002645:Chickens / Q000033:anatomy & histology* / Q000502:physiology*; D004805:Ependyma / Q000033:anatomy & histology* / Q000502:physiology*; D005786:Gene Expression Regulation / Q000502:physiology; D005904:Glial Fibrillary Acidic Protein / Q000235:genetics / Q000378:metabolism; D013687:Telencephalon / Q000033:anatomy & histology* / Q000502:physiology*; D014746:Vimentin / Q000235:genetics / Q000378:metabolism
D005904:Glial Fibrillary Acidic Protein; D014746:Vimentin