Journal
JOURNAL OF THE NEUROLOGICAL SCIENCES
Volume 182, Issue 1, Pages 45-50Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-510X(00)00447-0
Keywords
olivary hypertrophy; Golgi apparatus; trans-Golgi network; MG160; pathology; multiple system atrophy
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- NINDS NIH HHS [NS36732-02] Funding Source: Medline
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We studied the Golgi apparatus (GA) and trans-Golgi network (TGN) in the human olivary hypertrophy by immunohistological methods with organelle specific antibodies against the medial cisternae of the organelle (MG160) and the trans-Golgi network (TGN46). The GA and TGN of enlarged neurons in the inferior olivary nuclei in the early stages after central tract lesions lost the normal network-like configuration, and they were reduced to numerous small disconnected granules (fragmentation). In chronic stages after lesions, the GA and TGN of vacuolated or enlarged neurons showed a variety of morphological profiles, such as normal-looking patterns, fragmentation, reduction in number, and aggregation around nuclei or at a distance in the cytoplasm. In patients with multiple system atrophy, the GA and TGN of the neurons in the inferior olivary nuclei showed almost similar findings to those seen in the chronic stages after brainstem lesions. These results suggest that the GA and TGN are affected in degenerating neurons by anterograde transneuronal mechanisms. (C) 2000 Elsevier Science B.V. All rights reserved.
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