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α-Synuclein aggregation nucleates through liquid-liquid phase separation

delete2020-06-08
delete434
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OA
AI
S
Soumik Ray
N
Nitu Singh
R
Rakesh Kumar
K
Komal Patel
S
Satyaprakash Pandey
D
Debalina Datta
J
Jaladhar Mahato
R
Rajlaxmi Panigrahi
A
Ambuja Navalkar
S
Surabhi Mehra
L
Laxmikant Gadhe
D
Debdeep Chatterjee
A
Ajay Singh Sawner
S
S.K. Maiti
S
Sandhya Bhatia
J
Juan Gerez
A
Arindam Chowdhury
A
Ashutosh Kumar
R
Ranjith Padinhateeri
R
Roland Riek
G
G. Krishnamoorthy
S
Samir K. Maji *
DOI:10.1038/s41557-020-0465-9delete
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摘要

摘要

En 中文
Α-突触核蛋白 (α-syn) 聚集和淀粉样蛋白形成与帕金森病发病机制直接相关。然而,这一过程中涉及的早期事件仍不清楚。在这里,使用体外重建和细胞模型,我们表明 α-syn的液-液相分离先于其聚集。特别地,体外产生的a-syn液体样液滴最终经历液-固转变并形成含有低聚物和纤维状物质的淀粉样蛋白水凝胶。已知会加剧 α-syn聚集的因素,例如低pH,拟磷酸取代和家族性帕金森氏病突变,也会促进 α-syn液-液相分离及其随后的成熟。我们进一步证明了细胞中 α-syn液滴的形成。这些细胞的 α-syn液滴最终转化为核周的聚集体,该过程由微管调节。这项工作为天然非结构化 α-syn的相分离行为及其向疾病相关聚集状态的转化提供了详细的见解,这与帕金森氏病的发病机理高度相关。
Keyword:
IMMUNOLOGICAL SYNAPSE
PARKINSONS-DISEASE
TRANSITION
DROPLETS
MUTATION
BINDING
STRESS
NEURODEGENERATION
FIBRILLATION
TOXICITY
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Nature Chemistry 封面图
Nature Chemistry
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20.2
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4.4K
被引数:
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indian institute of technology system (iit system)
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9.5W
论文数: 9.9W
被引数: 93
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indian institute of technology (iit) - bombay
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