title: Multiple roles of GluN2B-containing NMDA receptors in synaptic plasticity in juvenile hippocampus.
abstract: In the CA1 area of the hippocampus N-methyl-d-aspartate receptors (NMDARs) mediate the induction of long-term depression (LTD), short-term potentiation (STP) and long-term potentiation (LTP). All of these forms of synaptic plasticity can be readily studied in juvenile hippocampal slices but the involvement of particular NMDAR subunits in the induction of these different forms of synaptic plasticity is currently unclear. Here, using NVP-AAM077, Ro 25-6981 and UBP145 to target GluN2A-, 2B- and 2D-containing NMDARs respectively, we show that GluN2B-containing NMDARs (GluN2B) are involved in the induction of LTD, STP and LTP in slices prepared from P14 rat hippocampus. A concentration of Ro (1 μM) that selectively blocks GluN2B-containing diheteromers is able to block LTD. It also inhibits a component of STP without affecting LTP. A higher concentration of Ro (10 μM), that also inhibits GluN2A/B triheteromers, blocks LTP. UBP145 selectively inhibits the Ro-sensitive component of STP whereas NVP inhibits LTP. These data are consistent with a role of GluN2B diheretomers in LTD, a role of both GluN2B- and GluN2D- containing NMDARs in STP and a role of GluN2A/B triheteromers in LTP. This article is part of the Special Issue entitled 'Ionotropic glutamate receptors'.
authors: Centre for Synaptic Plasticity, School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK.
authors: Grace
authors: G
authors: France
authors: Centre for Synaptic Plasticity, School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK.
authors: Diego
authors: D
authors: Fernández-Fernández
authors: Centre for Synaptic Plasticity, School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK.
authors: Erica S
authors: ES
authors: Burnell
authors: Centre for Synaptic Plasticity, School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK.
authors: Mark W
authors: MW
authors: Irvine
authors: Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, USA.
authors: Daniel T
authors: DT
authors: Monaghan
authors: Centre for Synaptic Plasticity, School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK.
authors: David E
authors: DE
authors: Jane
authors: Centre for Synaptic Plasticity, School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK.
authors: Zuner A
authors: ZA
authors: Bortolotto
authors: Centre for Synaptic Plasticity, School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK; Dept Physiology, University of Toronto and Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada.
authors: Graham L
authors: GL
authors: Collingridge
authors: Centre for Synaptic Plasticity, School of Clinical Sciences, University of Bristol, Bristol, UK; Centre for Neuroscience and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK. Electronic address: A.Volianskis@bristol.ac.uk.
authors: Arturas
authors: A
authors: Volianskis
mesh_terms: D000818:Animals; D006624:Hippocampus / Q000502:physiology*; D017774:Long-Term Potentiation; D036881:Long-Term Synaptic Depression; D010636:Phenols / Q000494:pharmacology; D010880:Piperidines / Q000494:pharmacology; D011810:Quinoxalines / Q000494:pharmacology; D051381:Rats; D017208:Rats, Wistar; D016194:Receptors, N-Methyl-D-Aspartate / Q000037:antagonists & inhibitors / Q000502:physiology*
chemical_list: D010636:Phenols; D010880:Piperidines; D011810:Quinoxalines; D016194:Receptors, N-Methyl-D-Aspartate; C498554:5-(alpha-methyl-4-bromobenzylamino)phosphonomethyl-1,4-dihydroquinoxaline-2,3-dione; C121001:NR2B NMDA receptor; C464436:NR2D NMDA receptor; C109643:Ro 25-6981
keywords: Long-term depression, LTD; Long-term potentiation, LTP; NMDA receptors; Short-term potentiation, STP