Extracellular adenosine 5′-triphosphate plus activation of glutamatergic receptors induces long-term potentiation in CA1 neurons of guinea pig hippocampal slices
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Cited by (20)
Differential regulation of STP, LTP and LTD by structurally diverse NMDA receptor subunit-specific positive allosteric modulators
2022, NeuropharmacologyCitation Excerpt :Both histamine (Burban et al., 2010; Williams, 1994a) and spermine (Williams, 1994b) are GluN2B preferring PAMs, with unknown effects on STP and LTD. Application of ATP (10–70 μM) to hippocampal slices causes a transient depression of responses, followed by a slowly developing LTP (Fujii et al., 1999; Wieraszko and Seyfried, 1989), which is [Ca2+]o-dependent and is blocked by AP5 (Fujii et al., 1999, 2002). Higher concentrations of ATP (e.g. 250 μM) produce an LTD like effect, which can be reversed by 3,4-diaminopyridine (Wieraszko and Seyfried, 1989).
P2 Receptor Signaling in Neurons and Glial Cells of the Central Nervous System
2011, Advances in PharmacologyCitation Excerpt :LTP and LTD are forms of synaptic plasticity, and potential mechanisms for memory formation and learning. Activation of P2X and P2Y receptors has been implicated in regulation of synaptic plasticity including the control of LTP and LTD in various brain regions (Fujii et al., 1999; Guzman et al., 2010; Pankratov et al., 2009; Saitow et al., 2005). The data are controversial, including reports about the facilitation, or inhibition of LTP, or no effect at all in the same brain region (hippocampus) by P2X receptor activation (Pankratov et al., 2009; Sim et al., 2006; Wang et al., 2004).
Repetition of mGluR-dependent LTD causes slowly developing persistent reduction in synaptic strength accompanied by synapse elimination
2005, Brain ResearchCitation Excerpt :As shown in Fig. 1A, the protocol was effective in the present cultured hippocampal slice. It is important that the present protocol does not require the application of test stimuli to induce LTD, as some other protocols for the pharmacological induction of LTP or LTD require the concomitant application of test pulses [10,28] which should be avoided for the purpose of long-term culturing. Next, we suppressed this mGluR-dependent LTD by pharmacological means.
Cellular distribution and functions of P2 receptor subtypes in different systems
2004, International Review of CytologyPurinergic Receptors in the Nervous System
2003, Current Topics in MembranesCitation Excerpt :Intrahippocampal infusion of suramin, acting either by blocking purinergic neurotransmission or as an inhibitor of ATP degradation, modulated inhibitory avoidance learning in rats (Bonan et al., 1999). Evidence waspresented to support the view that ATP and glutamate acting through N-methyl-d-aspertate (NMDA) receptors are required to induce LTP in CA1 neurons of guinea pig hippocampal slices (Fujii et al., 1999). There is some exciting recent data indicating a trophic role for ATP in the hippocampus (Skladchikova et al., 1999).