Synaptic and complement markers in extracellular vesicles in multiple sclerosis.
Synaptic and complement markers in extracellular vesicles in multiple sclerosis.
复制标题
多发性硬化症中细胞外囊泡中的突触和补体标记。
DOI:
10.1177/1352458520924590
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发表时间:
2021-04
期刊:
影响因子:
--
通讯作者:
Kapogiannis D
中科院分区:
文献类型:
--
作者:
Bhargava P;Nogueras-Ortiz C;Kim S;Delgado-Peraza F;Calabresi PA;Kapogiannis D
Synaptic loss is a feature of MS pathology that can be seen even in normal-appearing grey matter. Opsonization of synapses with complement components may underlie pathologic synapse loss. We sought to determine whether circulating neuronal-enriched and astrocytic-enriched extracellular vesicles (NEVs and AEVs) provide biomarkers reflecting complement-mediated synaptic loss in MS. From plasma of 61 people with MS (46 RRMS, 15 Progressive MS) and 31 healthy controls, we immunocaptured L1CAM+ NEVs and GLAST+ AEVs. We measured pre-and post-synaptic proteins synaptopodin and synaptophysin in NEVs and complement components (C1q, C3, C3b/iC3b, C4, C5, C5a, C9, Factor B, Factor H) in AEVs, total circulating EVs and neat plasma. We found lower levels of NEV synaptopodin and synaptophysin in MS compared to controls (p < 0.0001 for both). In AEVs, we found higher levels of multiple complement cascade components in people with MS compared to controls; these differences were not noted in total EVs or neat plasma. Strikingly, there were strong inverse correlations between NEV synaptic proteins and multiple AEV complement components in MS, but not in controls. Circulating EVs could identify synaptic loss in MS and suggest a link between astrocytic complement production and synaptic loss.
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影响因子:
7.1
作者:
Ingram G;Loveless S;Howell OW;Hakobyan S;Dancey B;Harris CL;Robertson NP;Neal JW;Morgan BP
通讯作者:
Morgan BP
DOI:
10.1177/1352458512438238
发表时间:
2012-10
期刊:
Multiple sclerosis (Houndmills, Basingstoke, England)
影响因子:
--
作者:
Ingram G;Hakobyan S;Hirst CL;Harris CL;Loveless S;Mitchell JP;Pickersgill TP;Robertson NP;Morgan BP
通讯作者:
Morgan BP
DOI:
10.1056/nejmra1401483
发表时间:
2018-01-11
期刊:
The New England journal of medicine
影响因子:
--
作者:
Reich DS;Lucchinetti CF;Calabresi PA
通讯作者:
Calabresi PA
影响因子:
14.5
作者:
Fitzgerald, Kathryn C.;Kim, Kicheol;Calabresi, Peter A.
通讯作者:
Calabresi, Peter A.
影响因子:
9.3
作者:
Watkins LM;Neal JW;Loveless S;Michailidou I;Ramaglia V;Rees MI;Reynolds R;Robertson NP;Morgan BP;Howell OW
通讯作者:
Howell OW