PSD-95-nNOS Coupling Regulates Contextual Fear Extinction in the Dorsal CA3.
PSD-95-nNOS Coupling Regulates Contextual Fear Extinction in the Dorsal CA3.
复制标题
PSD-95-nNOS 耦合调节背侧 CA3 中的情境恐惧消退
DOI:
10.1038/s41598-018-30899-4
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发表时间:
2018-08-24
影响因子:
4.6
通讯作者:
Zhu DY
中科院分区:
文献类型:
--
作者:
Cai CY;Chen C;Zhou Y;Han Z;Qin C;Cao B;Tao Y;Bian XL;Lin YH;Chang L;Wu HY;Luo CX;Zhu DY
Fear extinction depends on N-methyl-D-aspartate glutamate receptors (NMDARs) and brain-derived neurotrophic factor (BDNF) activation in the limbic system. However, postsynaptic density-95 (PSD-95) and neuronal nitric oxide synthase (nNOS) coupling, the downstream signaling of NMDARs activation, obstructs the BDNF signaling transduction. Thus, we wondered distinct roles of NMDAR activation and PSD-95-nNOS coupling on fear extinction. To explore the mechanisms, we detected protein-protein interaction using coimmunoprecipitation and measured protein expression by western blot. Contextual fear extinction induced a shift from PSD-95-nNOS to PSD-95-TrkB association in the dorsal hippocampus and c-Fos expression in the dorsal CA3. Disrupting PSD-95-nNOS coupling in the dorsal CA3 up-regulated phosphorylation of extracellular signal-regulates kinase (ERK) and BDNF, enhanced the association of BDNF-TrkB signaling with PSD-95, and promoted contextual fear extinction. Conversely, blocking NMDARs in the dorsal CA3 down-regulated BDNF expression and hindered contextual fear extinction. NMDARs activation and PSD-95-nNOS coupling play different roles in modulating contextual fear extinction in the hippocampus. Because inhibitors of PSD-95-nNOS interaction produce antidepressant and anxiolytic effect without NMDAR-induced side effects, PSD-95-nNOS could be a valuable target for PTSD treatment.
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DOI:
10.1126/science.1214592
发表时间:
2011-12-23
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Karpova NN;Pickenhagen A;Lindholm J;Tiraboschi E;Kulesskaya N;Agústsdóttir A;Antila H;Popova D;Akamine Y;Bahi A;Sullivan R;Hen R;Drew LJ;Castrén E
通讯作者:
Castrén E
影响因子:
5.3
作者:
Bernier, Brian E.;Lacagnina, Anthony F.;Drew, Michael R.
通讯作者:
Drew, Michael R.
影响因子:
4.7
作者:
Jiang, Lizhu;Mao, Rongrong;Xu, Lin
通讯作者:
Xu, Lin
影响因子:
64.5
作者:
Gräff J;Joseph NF;Horn ME;Samiei A;Meng J;Seo J;Rei D;Bero AW;Phan TX;Wagner F;Holson E;Xu J;Sun J;Neve RL;Mach RH;Haggarty SJ;Tsai LH
通讯作者:
Tsai LH
影响因子:
16.2
作者:
Makara JK;Magee JC
通讯作者:
Magee JC