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A combined light and electron microscopic method for the visualization of the same in vitro neuron by radioautography and serial sections
Author(s) -
Vuillet J.,
Montety M.C. Daguetde,
AutilloTouati A.,
Glowinski J.,
Prochiantz A.,
Seïte R.
Publication year - 1984
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1984.tb00482.x
Subject(s) - dopaminergic , electron microscope , neuron , in vitro , ultrastructure , dopamine , microscopy , intracellular , neuroscience , chemistry , biology , microbiology and biotechnology , biophysics , anatomy , pathology , physics , optics , biochemistry , medicine
SUMMARY We report here on a technical improvement which makes it possible to study, at the ultrastructural level, a dopaminergic neuron which has been previously identified by light microscopy. Primary cultures of virtually pure mesencephalic neurons from mouse embryos were obtained. These cultures were kept for 6 days, then incubated with tritiated dopamine. fixed and embedded in Epon. The dopaminergic neurons were firstly visualized by radioautography directly through Epon blocks in toto by light microscopy. In a second step, ultrathin sections of the identified dopaminergic cells were prepared and the neurons observed at the electron microscopy level. The dopaminergic nature of these neurons was regularly checked by radioautographic control on some selected ultrathin sections.