Mg(2+) block of Drosophila NMDA receptors is required for long-term memory formation and CREB-dependent gene expression.
Mg(2+) block of Drosophila NMDA receptors is required for long-term memory formation and CREB-dependent gene expression.
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DOI:
10.1016/j.neuron.2012.03.039
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发表时间:
2012-06-07
期刊:
影响因子:
16.2
通讯作者:
Saitoe M
中科院分区:
文献类型:
--
作者:
Miyashita T;Oda Y;Horiuchi J;Yin JC;Morimoto T;Saitoe M
NMDA receptor (NMDAR) channels allow Ca2+ influx only during correlated activation of both pre- and postsynaptic cells; a Mg2+ block mechanism suppresses NMDAR activity when the postsynaptic cell is inactive. Although the importance of NMDARs in associative learning and long-term memory (LTM) formation has been demonstrated, the role of Mg2+ block in these processes remains unclear. Using transgenic flies expressing NMDARs defective for Mg2+ block, we found that Mg2+ block mutants are defective for LTM formation but not associative learning. We demonstrate that LTM-dependent increases in expression of synaptic genes, including homer, staufen, and activin, are abolished in flies expressing Mg2+ block defective NMDARs. Furthermore, we show that genetic and pharmacological reduction of Mg2+ block significantly increases expression of a CREB repressor isoform. Our results suggest that Mg2+ block of NMDARs functions to suppress basal expression of a CREB repressor, thus permitting CREB-dependent gene expression upon LTM induction.
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影响因子:
64.5
作者:
Cheng, YZ;Endo, K;Davis, RL
通讯作者:
Davis, RL
影响因子:
64.5
作者:
BOURTCHULADZE, R;FRENGUELLI, B;SILVA, AJ
通讯作者:
SILVA, AJ
DOI:
10.1016/j.molbrainres.2003.07.005
发表时间:
2003-10-21
期刊:
MOLECULAR BRAIN RESEARCH
影响因子:
--
作者:
Kato, A;Fukazawa, Y;Sugiyama, H
通讯作者:
Sugiyama, H
影响因子:
4.2
作者:
Hirasawa, T;Wada, H;Uchino, S
通讯作者:
Uchino, S
DOI:
10.1073/pnas.0800946105
发表时间:
2008-04-08
影响因子:
11.1
作者:
Adesnik, Hillel;Li, Guangnan;Nicoll, Roger A.
通讯作者:
Nicoll, Roger A.