Abstract:
:Organotypic cultures established from the third thoracic ganglion of locust embryo have been used to investigate dopamine receptors. In this in vitro system, neurites emerge directly from the explants and form a dense network around the explants, presenting cell surface freely exposed for experimental labelling. Polyclonal anti-idiotypic antibodies raised in rabbits to antibodies against dopamine conjugate, and previously found to bind to dopamine receptors, have been used to investigate putative dopamine receptors in these neurites. Immunocytochemical detection by light microscopy employing immunofluorescence labelling, was correlated with electron microscopy, using peroxidase staining. In addition to a location for dopamine receptors on the neurite surface, intracellular binding sites were also found in neurites. This internal labelling might represent an intracellular pool of dopamine receptor precursors. The labelling was specific in that it was not present when the anti-idiotypic dopamine antibodies were replaced with non-immune serum or when preincubation with conjugated dopamine preceded incubation with anti-idiotypic dopamine antibodies.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Vanhems E,Delbos M,Geffard M,Viellemaringe Jdoi
10.1016/0306-4522(94)90088-4subject
Has Abstractpub_date
1994-02-01 00:00:00pages
649-55issue
3eissn
0306-4522issn
1873-7544pii
0306-4522(94)90088-4journal_volume
58pub_type
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