Effects of PI3Kγ overexpression in the hippocampus on synaptic plasticity and spatial learning.
Effects of PI3Kγ overexpression in the hippocampus on synaptic plasticity and spatial learning.
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DOI:
10.1186/s13041-014-0078-6
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发表时间:
2014-11-06
期刊:
影响因子:
3.6
通讯作者:
Kaang BK
中科院分区:
文献类型:
--
作者:
Choi JH;Park P;Baek GC;Sim SE;Kang SJ;Lee Y;Ahn SH;Lim CS;Lee YS;Collingridge GL;Kaang BK
Previous studies have shown that a family of phosphoinositide 3-kinases (PI3Ks) plays pivotal roles in the brain; in particular, we previously reported that knockout of the γ isoform of PI3K (PI3Kγ) in mice impaired synaptic plasticity and reduced behavioral flexibility. To further examine the role of PI3Kγ in synaptic plasticity and hippocampus-dependent behavioral tasks we overexpressed p110γ, the catalytic subunit of PI3Kγ, in the hippocampal CA1 region. We found that the overexpression of p110γ impairs NMDA receptor-dependent long-term depression (LTD) and hippocampus-dependent spatial learning in the Morris water maze (MWM) task. In contrast, long-term potentiation (LTP) and contextual fear memory were not affected by p110γ overexpression. These results, together with the previous knockout study, suggest that a critical level of PI3Kγ in the hippocampus is required for successful induction of LTD and normal learning.
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DOI:
10.1073/pnas.1008200107
发表时间:
2010-09-21
影响因子:
11.1
作者:
Ge, Yuan;Dong, Zhifang;Wang, Yu Tian
通讯作者:
Wang, Yu Tian
影响因子:
16.2
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通讯作者:
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影响因子:
25
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Chen, X;Garelick, MG;Storm, DR
通讯作者:
Storm, DR
DOI:
10.1073/pnas.96.15.8739
发表时间:
1999-07-20
影响因子:
11.1
作者:
Manahan-Vaughan, D;Braunewell, KH
通讯作者:
Braunewell, KH
影响因子:
5.3
作者:
Hou, LF;Klann, E
通讯作者:
Klann, E