Development of the cerebellar afferent system in the sharkScyliorhinus canicula: Insights into the basal organization of precerebellar nuclei in gnathostomes

2013 ◽  
Vol 522 (1) ◽  
pp. 131-168 ◽  
Author(s):  
Sol Pose-Méndez ◽  
Eva Candal ◽  
Fátima Adrio ◽  
Isabel Rodríguez-Moldes
Keyword(s):  
Afferent System ◽  
Precerebellar Nuclei

Role of Pax6 in development of the cerebellar system

Development ◽  
1999 ◽  
Vol 126 (16) ◽  
pp. 3585-3596 ◽  
Author(s):  
D. Engelkamp ◽  
P. Rashbass ◽  
A. Seawright ◽  
V. van Heyningen
Keyword(s):  
Cell Proliferation ◽  
Cell Migration ◽  
Granule Cell ◽  
Granule Cells ◽  
Cerebellar Granule Cells ◽  
Long Distance ◽  
Cerebellar Granule ◽  
Precerebellar Nuclei ◽  
Rhombic Lip

Post-mitotic neurons generated at the rhombic lip undertake long distance migration to widely dispersed destinations, giving rise to cerebellar granule cells and the precerebellar nuclei. Here we show that Pax6, a key regulator in CNS and eye development, is strongly expressed in rhombic lip and in cells migrating away from it. Development of some structures derived from these cells is severely affected in Pax6-null Small eye (Pax6(Sey)/Pax6(Sey)) embryos. Cell proliferation and initial differentiation seem unaffected, but cell migration and neurite extension are disrupted in mutant embryos. Three of the five precerebellar nuclei fail to form correctly. In the cerebellum the pre-migratory granule cell sub-layer and fissures are absent. Some granule cells are found in ectopic positions in the inferior colliculus which may result from the complete absence of Unc5h3 expression in Pax6(Sey)/Pax6(Sey) granule cells. Our results suggest that Pax6 plays a strong role during hindbrain migration processes and at least part of its activity is mediated through regulation of the netrin receptor Unc5h3.

scholarly journals Neuronal heterogeneity and stereotyped connectivity in the auditory afferent system

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Charles Petitpré ◽  
Haohao Wu ◽  
Anil Sharma ◽  
Anna Tokarska ◽  
Paula Fontanet ◽  
...  
Keyword(s):  
Afferent System

scholarly journals Ne uropeptides in the primary afferent system.

1989 ◽  
Vol 49 ◽  
pp. 43
Author(s):  
Emiko Senba ◽  
Masaya Tohyama
Keyword(s):  
Primary Afferent ◽  
Afferent System

scholarly journals The dual nature of the lemnisco-cortical afferent system in the cat

1964 ◽  
Vol 171 (2) ◽  
pp. 231-246 ◽  
Author(s):  
R. W. Morse ◽  
A. L. Towe
Keyword(s):  
Dual Nature ◽  
Afferent System
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