Α-synuclein immunotherapy blocks uptake and templated propagation of misfolded α-synuclein and neurodegeneration.

Α-synuclein immunotherapy blocks uptake and templated propagation of misfolded α-synuclein and neurodegeneration.
复制标题

DOI:
10.1016/j.celrep.2014.05.033
复制
发表时间:
2014-06-26
期刊:
影响因子:
8.8
通讯作者:
Lee VM
Lee VM
中科院分区:
生物学1区
文献类型:
--
作者:
Tran HT;Chung CH;Iba M;Zhang B;Trojanowski JQ;Luk KC;Lee VM

文献摘要

参考文献

被引文献

相似文献

错误折叠的α-突触核蛋白(α-syn)在路易小体(LBs)和路易神经突(LNs)中积累是帕金森病(PD)和路易小体痴呆(DLB)的主要标志。最近的研究表明,合成预成形原纤维(pffs)在体外和体内招募内源性α-syn并诱导LB/LN病理,从而暗示病理性α-syn的增殖和细胞间传递是LB/LN进行性扩散的机制。在这里,我们证明α-syn单克隆抗体(mab)通过阻止pff摄取和随后的细胞间病理传递,减少α-syn pff诱导的LB/LN形成,并在原代神经元培养中挽救突触/神经元损失。此外,给非转基因小鼠腹腔注射α-syn pffs,可减少LB/LN病理,改善黑质多巴胺能神经元的损失,并改善运动障碍。由此可见,α-syn抗体可能通过阻断病理性α-syn进入和/或其在神经元中的增殖而发挥治疗PD/DLB的作用。
Accumulation of misfolded alpha-synuclein (α-syn) into Lewy bodies (LBs) and Lewy neurites (LNs) is a major hallmark of Parkinson’s disease (PD) and dementia with LBs (DLB). Recent studies showed that synthetic preformed fibrils (pffs) recruit endogenous α-syn and induce LB/LN pathology in vitro and in vivo, thereby implicating propagation and cell-to-cell transmission of pathological α-syn as mechanisms for the progressive spread of LBs/LNs. Here, we demonstrate that α-syn monoclonal antibodies (mAbs) reduce α-syn pff-induced LB/LN formation and rescue synapse/neuron loss in primary neuronal cultures by preventing both pff uptake and subsequent cell-to-cell transmission of pathology. Moreover, intraperitoneal (i.p.) administration of mAb specific for misfolded α-syn into nontransgenic mice injected intrastriatally with α-syn pffs reduces LB/LN pathology, ameliorates substantia nigra dopaminergic neuron loss, and improves motor impairments. We conclude that α-syn antibodies could exert therapeutic effects in PD/DLB by blocking entry of pathological α-syn and/or its propagation in neurons.
DOI: 10.1016/s0896-6273(02)00682-7
发表时间: 2002-05-16
期刊: NEURON
影响因子: 16.2
作者:
Giasson, BI;Duda, JE;Lee, VMY
通讯作者: Lee, VMY
DOI: 10.1371/journal.pone.0062402
发表时间: 2013
期刊: PloS one
影响因子: 3.7
作者:
d'Abramo C;Acker CM;Jimenez HT;Davies P
通讯作者: Davies P
DOI: 10.1126/science.1227157
发表时间: 2012-11-16
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Luk KC;Kehm V;Carroll J;Zhang B;O'Brien P;Trojanowski JQ;Lee VM
通讯作者: Lee VM
DOI: 10.1016/j.neuron.2011.08.033
发表时间: 2011-10-06
期刊: Neuron
影响因子: 16.2
作者:
Volpicelli-Daley LA;Luk KC;Patel TP;Tanik SA;Riddle DM;Stieber A;Meaney DF;Trojanowski JQ;Lee VM
通讯作者: Lee VM
DOI: 10.1038/nrneurol.2009.219
发表时间: 2010-02
影响因子: 38.1
作者:
Lemere, Cynthia A.;Masliah, Eliezer
通讯作者: Masliah, Eliezer