Presynaptic and postsynaptic roles of NO, cGK, and RhoA in long-lasting potentiation and aggregation of synaptic proteins

Hong Gang Wang, Fang Min Lu, Iksung Jin, Hiroshi Udo, Eric R. Kandel, Jan De Vente, Ulrich Walter, Suzanne M. Lohmann, Robert D. Hawkins, Irina Antonova

Research output: Contribution to journalArticle

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Abstract

Recent results suggest that long-lasting potentiation at hippocampal synapses involves the rapid formation of clusters or puncta of presynaptic as well as postsynaptic proteins, both of which are blocked by antagonists of NMDA receptors and an inhibitor of actin polymerization. We have investigated whether the increase in puncta involves retrograde signaling through the NO-cGMP-cGK pathway and also examined the possible roles of two classes of molecules that regulate the actin cytoskeleton: Ena/VASP proteins and Rho GTPases. Our results suggest that NO, cGMP, cGK, actin, and Rho GTPases including RhoA play important roles in the potentiation and act directly in both the presynaptic and postsynaptic neurons, where they contribute to the increase in puncta of synaptic proteins. cGK phosphorylates synaptic VASP during the potentiation, whereas Rho GTPases act both in parallel and upstream of cGMP, in part by maintaining the synaptic localization of soluble guanylyl cyclase.

Original languageEnglish
Pages (from-to)389-403
Number of pages15
JournalNeuron
Volume45
Issue number3
DOIs
Publication statusPublished - Feb 3 2005

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rho GTP-Binding Proteins
Actins
Proteins
N-Methyl-D-Aspartate Receptors
Actin Cytoskeleton
Polymerization
Synapses
Neurons

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

Cite this

Wang, H. G., Lu, F. M., Jin, I., Udo, H., Kandel, E. R., De Vente, J., ... Antonova, I. (2005). Presynaptic and postsynaptic roles of NO, cGK, and RhoA in long-lasting potentiation and aggregation of synaptic proteins. Neuron, 45(3), 389-403. https://doi.org/10.1016/j.neuron.2005.01.011

Presynaptic and postsynaptic roles of NO, cGK, and RhoA in long-lasting potentiation and aggregation of synaptic proteins. / Wang, Hong Gang; Lu, Fang Min; Jin, Iksung; Udo, Hiroshi; Kandel, Eric R.; De Vente, Jan; Walter, Ulrich; Lohmann, Suzanne M.; Hawkins, Robert D.; Antonova, Irina.

In: Neuron, Vol. 45, No. 3, 03.02.2005, p. 389-403.

Research output: Contribution to journalArticle

Wang, HG, Lu, FM, Jin, I, Udo, H, Kandel, ER, De Vente, J, Walter, U, Lohmann, SM, Hawkins, RD & Antonova, I 2005, 'Presynaptic and postsynaptic roles of NO, cGK, and RhoA in long-lasting potentiation and aggregation of synaptic proteins', Neuron, vol. 45, no. 3, pp. 389-403. https://doi.org/10.1016/j.neuron.2005.01.011
Wang, Hong Gang ; Lu, Fang Min ; Jin, Iksung ; Udo, Hiroshi ; Kandel, Eric R. ; De Vente, Jan ; Walter, Ulrich ; Lohmann, Suzanne M. ; Hawkins, Robert D. ; Antonova, Irina. / Presynaptic and postsynaptic roles of NO, cGK, and RhoA in long-lasting potentiation and aggregation of synaptic proteins. In: Neuron. 2005 ; Vol. 45, No. 3. pp. 389-403.
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