α-Synuclein fibril-specific nanobody reduces prion-like α-synuclein spreading in mice.
α-Synuclein fibril-specific nanobody reduces prion-like α-synuclein spreading in mice.
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DOI:
10.1038/s41467-022-31787-2
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发表时间:
2022-07-19
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Pathogenic α-synuclein (α-syn) is a prion-like protein that drives the pathogenesis of Lewy Body Dementia (LBD) and Parkinson’s Disease (PD). To target pathogenic α-syn preformed fibrils (PFF), here we designed extracellular disulfide bond-free synthetic nanobody libraries in yeast. Following selection, we identified a nanobody, PFFNB2, that can specifically recognize α-syn PFF over α-syn monomers. PFFNB2 cannot inhibit the aggregation of α-syn monomer, but can significantly dissociate α-syn fibrils. Furthermore, adeno-associated virus (AAV)-encoding EGFP fused to PFFNB2 (AAV-EGFP-PFFNB2) can inhibit PFF-induced α-syn serine 129 phosphorylation (pS129) in mouse primary cortical neurons, and prevent α-syn pathology spreading to the cortex in the transgenic mice expressing human wild type (WT) α-syn by intrastriatal-PFF injection. The pS129 immunoreactivity is negatively correlated with the expression of AAV-EGFP-PFFNB2. In conclusion, PFFNB2 holds a promise for mechanistic exploration and therapeutic development in α-syn-related pathogenesis. Butler et al. selected disulfide bond-free nanobodies to target α-synuclein fibrils. Nanobody PFFNB2 was shown to disaggregate α-synuclein fibrils in vitro and inhibit α-synuclein pathology development in neuron cultures and mouse models.
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影响因子:
7.3
作者:
Frenzel A;Hust M;Schirrmann T
通讯作者:
Schirrmann T
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Matagne, A
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Henderson, Michael X.;Covell, Dustin J.;Luk, Kelvin C.
通讯作者:
Luk, Kelvin C.
影响因子:
21.3
作者:
Fujiwara, H;Hasegawa, M;Iwatsubo, T
通讯作者:
Iwatsubo, T