Peripheral monocyte entry is required for alpha-Synuclein induced inflammation and Neurodegeneration in a model of Parkinson disease.
Peripheral monocyte entry is required for alpha-Synuclein induced inflammation and Neurodegeneration in a model of Parkinson disease.
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DOI:
10.1016/j.expneurol.2017.11.010
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发表时间:
2018-03
影响因子:
5.3
通讯作者:
Standaert DG
中科院分区:
文献类型:
--
作者:
Harms AS;Thome AD;Yan Z;Schonhoff AM;Williams GP;Li X;Liu Y;Qin H;Benveniste EN;Standaert DG
Accumulation of alpha-synuclein (α-syn) in the central nervous system (CNS) is a core feature of Parkinson disease (PD) that leads to activation of the innate immune system, production of inflammatory cytokines and chemokines, and subsequent neurodegeneration. Here, we used heterozygous reporter knock-in mice in which the first exons of the fractalkine receptor (CX3CR1) and of the C-C chemokine receptor type 2 (CCR2) are replaced with fluorescent reporters to study the role of resident microglia (CX3CR1+) and infiltrating peripheral monocytes (CCR2+), respectively, in the CNS. We used an α-syn mouse model induced by viral over-expression of α-syn. We find that in vivo, expression of full-length human α-syn induces robust infiltration of pro-inflammatory CCR2+ peripheral monocytes into the substantia nigra. Genetic deletion of CCR2 prevents α-syn induced monocyte entry, attenuates MHCII expression and blocks the subsequent degeneration of dopaminergic neurons. These results demonstrate that extravasation of pro-inflammatory peripheral monocytes into the CNS plays a key role in neurodegeneration in this model of PD synucleinopathy, and suggest that peripheral monocytes may be a target of neuroprotective therapies for human PD.
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影响因子:
9.9
作者:
Gao, Xiang;Chen, Honglei;Ascherio, Alberto
通讯作者:
Ascherio, Alberto
影响因子:
5.3
作者:
Jung, S;Aliberti, J;Littman, DR
通讯作者:
Littman, DR
影响因子:
15.9
作者:
Brochard, Vanessa;Combadiere, Behazine;Hunot, Stephane
通讯作者:
Hunot, Stephane
影响因子:
8.6
作者:
Funk, Natalja;Wieghofer, Peter;Biskup, Saskia
通讯作者:
Biskup, Saskia
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