Localized calcium accumulations prime synapses for phagocyte removal in cortical neuroinflammation
Localized calcium accumulations prime synapses for phagocyte removal in cortical neuroinflammation
复制标题
局部钙积累促进突触清除皮质神经炎症中的吞噬细胞
DOI:
10.1101/758193
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Kersch
中科院分区:
文献类型:
--
作者:
Jafari M;Schumacher A.-M;Snaidero N;Neziraj T;Ullrich Gavilanes E.M;Jürgens T;Flórez Weidinger J.D;Schmidt S.S;Beltrán E;Hagan N;Woodworth L;Ofengeim D;Gans J;Wolf F;Kreutzfeldt M;Portugues R;Merkler D;Misgeld T. ;Kersch
Cortical pathology contributes to chronic cognitive impairment of patients suffering from the neuroinflammatory disease multiple sclerosis (MS). How such gray matter inflammation affects neuronal structure and function is not well understood. Here we use functional and structuralin vivoimaging in a mouse model of cortical MS to demonstrate that bouts of cortical inflammation disrupt cortical circuit activity coincident with a widespread but transient loss of dendritic spines. Spines destined for removal show a local calcium accumulation and are subsequently removed by invading macrophages and activated microglia. Targeting phagocyte activation with a new antagonist of the colony-stimulating factor 1 receptor prevents cortical synapse loss. Overall, our study identifies synapse loss as a key pathological feature of inflammatory gray matter lesions that is amenable to immunomodulatory therapy.HIGHLIGHTSWidespread, but transient loss of synapses in inflammatory lesions and beyondReversible impairment of neuronal firing and circuit function in the inflamed cortexCalcium dyshomeostasis of single spines precedes swift synapse lossPhagocyte-mediated spine pruning as targetable mechanism of synapse loss
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影响因子:
168.9
作者:
Lublin, Fred;Miller, David H.;Kappos, Ludwig
通讯作者:
Kappos, Ludwig
影响因子:
4.8
作者:
Rodriguez, A;Ehlenberger, D;Wearne, SL
通讯作者:
Wearne, SL
影响因子:
2.5
作者:
Vogelstein, Joshua T.;Packer, Adam M.;Paninski, Liam
通讯作者:
Paninski, Liam
影响因子:
16.6
作者:
Montey KL;Quinlan EM
通讯作者:
Quinlan EM
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
X. D. Damjanovic;X. P. Valsasina;M. Rocca;X. M. Stromillo;X. A. Gallo;X. C. Enzinger;X. H. Hulst;X. A. Rovira;X. N. Muhlert;N. Stefano;X. A. Bisecco;X. F. Fazekas;X. M.J.;T. Yousry;X. M. Filippi;MD Massimo Filippi;Neuroimaging Research
通讯作者:
Neuroimaging Research