Summary
Intensely stained cells are found in the cerebellar white matter of the vermis and paravermis in adult rats after immunoreaction with an immune serum raised against glutamic acid decarboxylase (GAD). The cells are similar in size to cortical Purkinje cells and three times the size of Golgi cells of the internal granule layer, and have a thick immunopositive cell process emerging from a welldefined cytoplasmic cone. In the cytoplasm, immunoprecipitates are more dense around the nucleus as in normally located Purkinje cells. The morphological appearance of the immunopositive cells suggests that they may be ectopically located Purkinje cells. The soma of the ectopic Purkinje cells is contacted by a few darkly stained terminal boutons. Data indicate that, in spite of the different cellular environment, ectopic Purkinje cells can develop not only the typical morphological pattern already described but also other intrinsic features, such as their typical inhibitory neurotransmitter.
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Scherini, E., Bernocchi, G. Ectopic Purkinje-like cells are GABAergic: Immunohistochemistry with an immune serum against glutamic acid decarboxylase. Cell Tissue Res. 258, 437–439 (1989). https://doi.org/10.1007/BF00239466
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DOI: https://doi.org/10.1007/BF00239466