αCaMKII in the lateral amygdala mediates PTSD-Like behaviors and NMDAR-Dependent LTD.
αCaMKII in the lateral amygdala mediates PTSD-Like behaviors and NMDAR-Dependent LTD.
复制标题
外侧杏仁核中的 α CaMKII 介导 PTSD 样行为和 NMDAR 依赖性 LTD
DOI:
10.1016/j.ynstr.2021.100359
复制
发表时间:
2021-11
影响因子:
5
通讯作者:
Cao X
中科院分区:
文献类型:
--
作者:
An S;Wang J;Zhang X;Duan Y;Xu Y;Lv J;Wang D;Zhang H;Richter-Levin G;Klavir O;Yu B;Cao X
Post-traumatic stress disorder (PTSD) is a psychiatric disorder that afflicts many individuals. However, its molecular and cellular mechanisms remain largely unexplored. Here, we found PTSD susceptible mice exhibited significant up-regulation of alpha-Ca2+/calmodulin-dependent kinase II (αCaMKII) in the lateral amygdala (LA). Consistently, increasing αCaMKII in the LA not only caused PTSD-like behaviors such as impaired fear extinction and anxiety-like behaviors, but also attenuated N-methyl-D-aspartate receptor (NMDAR)-dependent long-term depression (LTD) at thalamo-lateral amygdala (T-LA) synapses, and reduced GluA1-Ser845/Ser831 dephosphorylation and a-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) internalization. Suppressing the elevated αCaMKII to normal levels completely rescued both PTSD-like behaviors and the impairments in LTD, GluA1-Ser845/Ser831 dephosphorylation, and AMPAR internalization. Intriguingly, deficits in GluA1-Ser845/Ser831 dephosphorylation and AMPAR internalization were detected not only after impaired fear extinction, but also after attenuated LTD. Our results suggest that αCaMKII in the LA may be a potential molecular determinant of PTSD. We further demonstrate for the first time that GluA1-Ser845/Ser831 dephosphorylation and AMPAR internalization are molecular links between fear extinction and LTD.
登录
查看更多内容
DOI:
10.1038/s41583-018-0039-7
发表时间:
2018-09
期刊:
Nature reviews. Neuroscience
影响因子:
--
作者:
Fenster RJ;Lebois LAM;Ressler KJ;Suh J
通讯作者:
Suh J
影响因子:
3
作者:
Erlich JC;Bush DE;Ledoux JE
通讯作者:
Ledoux JE
影响因子:
6.1
作者:
Ardi, Ziv;Albrecht, Anne;Richter-Levin, Gal
通讯作者:
Richter-Levin, Gal
影响因子:
56.9
作者:
Brebner, K;Wong, TP;Wang, YT
通讯作者:
Wang, YT
影响因子:
2.7
作者:
Bevilaqua, LR;Bonini, JS;Izquierdo, I
通讯作者:
Izquierdo, I