Reduced synaptic STIM2 expression and impaired store-operated calcium entry cause destabilization of mature spines in mutant presenilin mice.
Reduced synaptic STIM2 expression and impaired store-operated calcium entry cause destabilization of mature spines in mutant presenilin mice.
复制标题
突触 STIM2 表达减少和钙库操作钙进入受损导致突变早老素小鼠成熟棘不稳定
DOI:
10.1016/j.neuron.2014.02.019
复制
发表时间:
2014-04-02
期刊:
影响因子:
16.2
通讯作者:
Bezprozvanny I
中科院分区:
文献类型:
--
作者:
Sun S;Zhang H;Liu J;Popugaeva E;Xu NJ;Feske S;White CL 3rd;Bezprozvanny I
Mushroom dendritic spine structures are essential for memory storage and the loss of mushroom spines may explain memory defects in Alzheimer's disease (AD). Here we show a significant reduction in the fraction of mushroom spines in hippocampal neurons from the presenilin-1 M146V knockin (KI) mouse model of familial AD (FAD). The stabilization of mushroom spines depends on STIM2-mediated neuronal store operated calcium influx (nSOC) and continuous activity of Ca2+-calmodulin-dependent protein kinase II (CaMKII). We demonstrate that STIM2-nSOC-CaMKII pathway is compromised in KI neurons, in aging neurons and in sporadic AD brains due to downregulation of STIM2 protein. We further establish that overexpression of STIM2 rescues synaptic nSOC, CaMKII activity and mushroom spine loss in KI neurons. Our results identify STIM2-nSOC-CaMKII synaptic pathway as a novel potential therapeutic target for treatment of AD and age-related memory decline.
登录
查看更多内容
影响因子:
19
作者:
Collins SR;Meyer T
通讯作者:
Meyer T
影响因子:
2.9
作者:
Feng B;Raghavachari S;Lisman J
通讯作者:
Lisman J
影响因子:
34.7
作者:
Lisman, John;Yasuda, Ryohei;Raghavachari, Sridhar
通讯作者:
Raghavachari, Sridhar
影响因子:
3.3
作者:
Dickstein, D. L.;Weaver, C. M.;Luebke, J. I.;Hof, P. R.
通讯作者:
Hof, P. R.
影响因子:
3.1
作者:
Luebke, Jennifer I.;Weaver, Christina M.;Rocher, Anne B.;Rodriguez, Alfredo;Crimins, Johanna L.;Dickstein, Dara L.;Wearne, Susan L.;Hof, Patrick R.
通讯作者:
Hof, Patrick R.