MicroRNA-195 prevents dendritic degeneration and neuron death in rats following chronic brain hypoperfusion.
MicroRNA-195 prevents dendritic degeneration and neuron death in rats following chronic brain hypoperfusion.
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MicroRNA-195 可预防大鼠慢性脑灌注不足后的树突变性和神经元死亡
DOI:
10.1038/cddis.2017.243
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发表时间:
2017-06-01
影响因子:
9
通讯作者:
Ai J
中科院分区:
文献类型:
--
作者:
Chen X;Jiang XM;Zhao LJ;Sun LL;Yan ML;Tian Y;Zhang S;Duan MJ;Zhao HM;Li WR;Hao YY;Wang LB;Xiong QJ;Ai J
Impaired synaptic plasticity and neuron loss are hallmarks of Alzheimer’s disease and vascular dementia. Here, we found that chronic brain hypoperfusion (CBH) by bilateral common carotid artery occlusion (2VO) decreased the total length, numbers and crossings of dendrites and caused neuron death in rat hippocampi and cortices. It also led to increase in N-terminal β-amyloid precursor protein (N-APP) and death receptor-6 (DR6) protein levels and in the activation of caspase-3 and caspase-6. Further study showed that DR6 protein was downregulated by miR-195 overexpression, upregulated by miR-195 inhibition, and unchanged by binding-site mutation and miR-masks. Knockdown of endogenous miR-195 by lentiviral vector-mediated overexpression of its antisense molecule (lenti-pre-AMO-miR-195) decreased the total length, numbers and crossings of dendrites and neuron death, upregulated N-APP and DR6 levels, and elevated cleaved caspase-3 and caspase-6 levels. Overexpression of miR-195 using lenti-pre-miR-195 prevented these changes triggered by 2VO. We conclude that miR-195 is involved in CBH-induced dendritic degeneration and neuron death through activation of the N-APP/DR6/caspase pathway.
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影响因子:
4.2
作者:
Alobuia WM;Xia W;Vohra BP
通讯作者:
Vohra BP
影响因子:
6
作者:
Akkawi, NM;Borroni, B;Padovani, A
通讯作者:
Padovani, A
影响因子:
4.6
作者:
Jiang X;Chai GS;Wang ZH;Hu Y;Li XG;Ma ZW;Wang Q;Wang JZ;Liu GP
通讯作者:
Liu GP
影响因子:
3.1
作者:
Spires-Jones T;Knafo S
通讯作者:
Knafo S
影响因子:
7.1
作者:
Deleglise B;Magnifico S;Duplus E;Vaur P;Soubeyre V;Belle M;Vignes M;Viovy JL;Jacotot E;Peyrin JM;Brugg B
通讯作者:
Brugg B