Postsynaptic, not presynaptic NMDA receptors are required for spike-timing-dependent LTD induction.
Postsynaptic, not presynaptic NMDA receptors are required for spike-timing-dependent LTD induction.
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DOI:
10.1038/nn.4343
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发表时间:
2016-09
影响因子:
25
通讯作者:
Jahr, Craig E.
中科院分区:
文献类型:
--
作者:
Carter, Brett C.;Jahr, Craig E.
Long-term depression (LTD) between cortical layer 4 spiny stellate cells and layer 2/3 pyramidal cells requires the activation of NMDA receptors (NMDARs). In young rodents, this form of LTD has been repeatedly reported to require presynaptic NMDARs for its induction. Here we show that at this synapse in the somatosensory cortex of 2 to 3 week old rats and mice, postsynaptic, not presynaptic NMDARs are required for LTD induction. First, we find no evidence for functional NMDARs in L4 neuron axons using 2 photon laser scanning microscopy and 2 photon glutamate uncaging. Second, we find that genetic deletion of postsynaptic, but not presynaptic NMDARs prevents LTD induction. Finally, the pharmacology of the NMDAR requirement is consistent with a non-ionic signaling mechanism.
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影响因子:
16.2
作者:
Larsen, Rylan S.;Smith, Ikuko T.;Miriyala, Jayalakshmi;Han, Ji Eun;Corlew, Rebekah J.;Smith, Spencer L.;Philpot, Benjamin D.
通讯作者:
Philpot, Benjamin D.
影响因子:
25
作者:
通讯作者:
--
影响因子:
16.2
作者:
Casado, M;Isope, P;Ascher, P
通讯作者:
Ascher, P
影响因子:
16.2
作者:
McGuinness, Lindsay;Taylor, Chanel;Emptage, Nigel J.
通讯作者:
Emptage, Nigel J.
影响因子:
5.3
作者:
Bender, VA;Bender, KJ;Feldman, DE
通讯作者:
Feldman, DE