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Propagation of pathological α-synuclein in marmoset brain
https://repo.qst.go.jp/records/47790
https://repo.qst.go.jp/records/47790fc819c9d-a58e-4aa7-b3f8-246d78072c71
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-04-26 | |||||
タイトル | ||||||
タイトル | Propagation of pathological α-synuclein in marmoset brain | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Shimozawa, Aki
× Shimozawa, Aki× Ono, Maiko× Takahara, Daisuke× Tarutani, Airi× Imura, Sei× Masuda-Suzukake, Masami× Higuchi, Makoto× Yanai, Kazuhiko× Hisanaga, Shin-ichi× Hasegawa, Masato× 小野 麻衣子× 樋口 真人 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | α-Synuclein is a defining, key component of Lewy bodies and Lewy neurites in Parkinson’s disease (PD) and dementia with Lewy bodies (DLB), as well as glial cytoplasmic inclusions in multiple system atrophy (MSA). The distribution and spreading of these pathologies are closely correlated with disease progression. Recent studies have revealed that intracerebral injection of synthetic α-synuclein fibrils or pathological α-synuclein prepared from DLB or MSA brains into wild-type or transgenic animal brains induced prion-like propagation of phosphorylated α-synuclein pathology. The common marmoset is a very small primate that is expected to be a useful model of human diseases. Here, we show that intracerebral injection of synthetic α-synuclein fibrils into adult wild-type marmoset brains (caudate nucleus and/or putamen) resulted in spreading of abundant α-synuclein pathologies, which were positive for various antibodies to α-synuclein, including phospho Ser129-specific antibody, anti-ubiquitin and anti-p62 antibodies, at three months after injection. Remarkably, robust Lewy body-like inclusions were formed in tyrosine hydroxylase (TH)-positive neurons in these marmosets, strongly suggesting the retrograde spreading of abnormal α-synuclein from striatum to substantia nigra. Moreover, a significant decrease in the numbers of TH-positive neurons was observed in the injection-side of the brain, where α-synuclein inclusions were deposited. Furthermore, most of the α-synuclein inclusions were positive for 1-fluoro-2,5-bis (3-carboxy-4-hydroxystyryl) benzene (FSB) and thioflavin-S, which are dyes widely used to visualize the presence of amyloid. Thus, injection of synthetic α-synuclein fibrils into brains of non-transgenic primates induced PD-like α-synuclein pathologies within only 3 months after injection. Finally, we provide evidence indicating that neurons with abnormal α-synuclein inclusions may be cleared by microglial cells. This is the first marmoset model for α-synuclein propagation. It should be helpful in studies to elucidate mechanisms of disease progression and in development and evaluation of disease-modifying drugs for α-synucleinopathies. | |||||
書誌情報 |
Acta Neuropathologica Communications 巻 5, p. 12-1-12-14, 発行日 2017-02 |
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出版者 | ||||||
出版者 | BioMed Central | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2051-5960 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 28148299 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1186/s40478-017-0413-0 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://actaneurocomms.biomedcentral.com/articles/10.1186/s40478-017-0413-0 | |||||
関連名称 | http://actaneurocomms.biomedcentral.com/articles/10.1186/s40478-017-0413-0 |