期刊
ACTA NEUROPATHOLOGICA
卷 107, 期 4, 页码 292-298出版社
SPRINGER-VERLAG
DOI: 10.1007/s00401-003-0811-1
关键词
multiple system atrophy; alpha-synucleinopathy; neuronal cytoplasmic inclusions; neuropil threads; phosphorylation
We immunohistochemically examined the brain and peripheral sympathetic ganglia from eight patients with multiple system atrophy (MSA), using an antibody specific for phosphorylated alpha-synuclein (anti-PSer129). Phosphorylated alpha-synuclein was deposited in five cellular locations: oligodendroglial cytoplasm and nucleus, and neuronal cytoplasm, processes and nucleus. Many neuronal cytoplasmic inclusions (NCIs) were found in the pontine and inferior olivary nuclei and, to a lesser extent, in the substantia nigra, locus ceruleus, and neocortical and hippocampal neurons. NCIs were also found in the sympathetic ganglia in two out of the eight cases. Moreover, anti-PSer129 immunohistochemistry revealed extensive neuropil pathology; swollen neurites were abundant in the pontine nucleus, delicate neurites were observed in the deeper layers of the cerebral cortex and thalamus, and neuropil threads and dot-like structures were distributed in the basal ganglia and brainstem. Diffuse neuronal cytoplasmic staining (pre-NCI) was frequently found in the pontine and inferior olivary nuclei. Thus, the widespread accumulation of phosphorylated alpha-synuclein in both glial and neuronal cells is a pathological feature in patients suffering from MSA.
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