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Region‐specifi neuro‐astroglial interactions: Ultrastructural study of the in vitro expression of neuronal polarity
Author(s) -
AutilloTouati A.,
Chamak B.,
Araud D.,
Vuillet J.,
Seite R.,
Prochiantz A.
Publication year - 1988
Publication title -
journal of neuroscience research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.72
H-Index - 160
eISSN - 1097-4547
pISSN - 0360-4012
DOI - 10.1002/jnr.490190308
Subject(s) - astrocyte , ultrastructure , biology , in vitro , polarity (international relations) , neuroscience , microbiology and biotechnology , neuron , electron microscope , dendrite (mathematics) , midbrain , chemistry , central nervous system , cell , anatomy , biochemistry , physics , geometry , mathematics , optics
Mesencephal;ic neurons were cultured for 2 days on mesencephalic or striatal astrocyte monolayers. The morphology of these neurons was studied in electron microscopy. The number of dendritic profiles was higher on mesencephalic astrocytes (homotopic neuroastroglial co‐cultures) than on striatal astrocytes (heterotopic co‐cultures). This increase in the number of dendrites correlated with a more mature aspect of the meurons. Striatal neurons were also cultured on the astrocytic monolayers. The state of maturation of these neurons was more advanced, and the number of their dendrites was higher on striatal than on mesencephalic astrocytes. These results confirm and extend the fact that neuronal maturation and dendritic growth can be regulated through region‐specific neuro‐astroglial interactions (Denis‐Donini et al., 1984; Chamak et al., 1987).