2011
DOI: 10.1113/jphysiol.2011.215566
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SAP97 directs NMDA receptor spine targeting and synaptic plasticity

Abstract: SAP97 is a multidomain scaffold protein implicated in the forward trafficking and synaptic localization of NMDA-and AMPA-type glutamate receptors. Alternative splicing of SAP97 transcripts gives rise to palmitoylated αSAP97 and L27-domain containing βSAP97 isoforms that differentially regulate the subsynaptic localization of GluR1 subunits of AMPA receptors. Here, we examined whether SAP97 isoforms regulate the mechanisms underlying long-term potentiation (LTP) and depression (LTD) and find that both α-and β-f… Show more

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Cited by 42 publications
(69 citation statements)
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“…The most obvious exception is Dlg1/Sap97, for which we did not observe activitydependent redistribution. A similar flat Dlg1 profile has been observed for different stimulation protocols in primary neuronal cultures at comparable time points (31).…”
Section: Discussionsupporting
confidence: 73%
“…The most obvious exception is Dlg1/Sap97, for which we did not observe activitydependent redistribution. A similar flat Dlg1 profile has been observed for different stimulation protocols in primary neuronal cultures at comparable time points (31).…”
Section: Discussionsupporting
confidence: 73%
“…Paired whole-cell patch-clamp recordings to measure synaptic transmission between pyramidal neurons in vitro were performed as described previously (Waites et al, 2009;Li et al, 2011). Briefly, hippocampal neurons from male and female P0 Wistar rat pups were plated on 12 mm round glass coverslips, transferred to a recording chamber mounted on an Olympus BX-51 microscope, and perfused at room temperature with artificial CSF (ACSF) (in mM): 119 NaCl, 2.5 KCl, 1.3 MgSO 4 , 2.5 CaCl 2 , 1 Na 2 HPO 4 , 26.2 NaHCO 3 , and 11 glucose).…”
Section: Methodsmentioning
confidence: 99%
“…Whilst the same electrode solution is used for postsynaptic neurons, cesium gluconate (120 mM) is typically used as the major salt in the postsynaptic electrode, plus 5 mM QX314. NOTE: This enables stable voltage clamping at positive potentials to record postsynaptic NMDAR-mediated currents [8][9][10]13 . It also prevents the potassium-induced hyperexcitability of the presynaptic neuron by the internal solution flowing from the postsynaptic recording electrode before a giga ohm seal is made.…”
Section: Paired Whole Cell Recordingsmentioning
confidence: 99%
“…The use of organotypic brain slice cultures circumvents this obstacle as synaptic connectivity can re-establish in vitro and moreover the nature of the resulting connectivity is similar to that in native brain tissue 20 . In addition, organotypic cultures express LTP, LTD [7][8][9][10][12][13][14][15]21 and additional forms of short-term synaptic plasticity including pairedpulse facilitation (PPF) and depression (PPD) 6,22,23 , enabling plasticity mechanisms to be studied in pairs of neurons. Here we describe the detailed methodology involved in successfully attaining paired recordings in this in vitro system.…”
Section: Introductionmentioning
confidence: 99%
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