Blockade of glutamate transporters facilitates cerebellar synaptic long-term depression
Blockade of glutamate transporters facilitates cerebellar synaptic long-term depression
复制标题
谷氨酸转运蛋白的阻断促进小脑突触长期抑制
DOI:
10.1097/wnr.0b013e328328f397
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发表时间:
2009-03
期刊:
影响因子:
1.7
通讯作者:
Su LD
中科院分区:
文献类型:
--
作者:
Shen Y;Su LD
Excitatory amino acid transporters (EAATs) are believed to limit extracellular glutamate concentrations with specific roles poorly understood. At cerebellar climbing fiber-Purkinje cell synapse, EAAT4 and metabotropic glutamate receptor 1 (mGluR1) are closely expressed in surrounding postsynaptic locations, suggesting that EAAT4 may regulate mGluR1 activation. We examined the actions of EAAT4 on synaptic plasticity by applying blockers of glutamate transporters, DL-threo-&bgr;-benzyloxyaspartic acid and D-aspartate. Inhibition of EAAT4 markedly prolonged AMPA receptor-mediated excitatory postsynaptic currents evoked by stimulating climbing fibers. Impairing glutamate uptake facilitated mGluR1-dependent climbing fiber-Purkinje cell synaptic long-term depression (LTD). Glutamate uptake blockers also sufficiently rescued climbing fiber-Purkinje cell synaptic LTD that failed to be induced by a weaker tetanus. Our results suggest that neuronal glutamate transporters strongly influence mGluR1-dependent cerebellar LTD.
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影响因子:
5.3
作者:
Carter, AG;Regehr, WG
通讯作者:
Regehr, WG
DOI:
10.1523/jneurosci.18-10-03606.1998
发表时间:
1998-05
期刊:
The Journal of Neuroscience
影响因子:
--
作者:
Y. Dehnes;F. Chaudhry;K. Ullensvang;K. P. Lehre;J. Storm-Mathisen;N. Danbolt
通讯作者:
Y. Dehnes;F. Chaudhry;K. Ullensvang;K. P. Lehre;J. Storm-Mathisen;N. Danbolt
DOI:
10.1523/jneurosci.18-16-06147.1998
发表时间:
1998-08
期刊:
The Journal of Neuroscience
影响因子:
--
作者:
J. Dittman;W. Regehr
通讯作者:
J. Dittman;W. Regehr
影响因子:
3.4
作者:
Y. Takayasu;M. Iino;S. Ozawa
通讯作者:
Y. Takayasu;M. Iino;S. Ozawa
影响因子:
4.7
作者:
Dowd, LA;Robinson, MB
通讯作者:
Robinson, MB