Cited by 234Neuroscience and Neuropharmacology ResearchAlzheimer's disease research and treatmentsMemory and Neural Mechanisms

Activation of glycogen synthase kinase-3 inhibits long-term potentiation with synapse-associated impairments

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Zhu, Ling-Qiang, Wang, Shao-Hui, Liu, Dan, Yin, Yang-Yang, Tian, Qing, Wang, Xiao-Chuan, Wang, Qun, Chen, Jian-Guo +1 more·2007·The Journal of Neuroscience

Abstract

Activation of glycogen synthase kinase-3 (GSK-3) can cause memory deficits as seen in Alzheimer's disease, the most common age-associated dementia, but the mechanism is not understood. Here, we found that activation of GSK-3 by wortmannin or transient overexpression of wild-type GSK-3β could suppress the induction of long-term potentiation (LTP) in rat hippocampus, whereas simultaneous inhibition of GSK-3 by lithium or SB216763 or transient expression of a dominant-negative GSK-3β mutant (dnGSK-3β) preserved the LTP. After high-frequency stimulation (HFS), the presynaptic release of glutamate and the expression/clustering of synapsin I, a synaptic vesicle protein playing an important role in neurotransmitter release, decreased markedly after upregulation of GSK-3.In vitro studies further demonstrated that GSK-3 inhibited the expression of SynI independent of HFS. In postsynaptic level, the expression of PSD93 and NR2A/B proteins decreased significantly when GSK-3 was activated. The LTP-associated synapse impairments including less presynaptic active zone, thinner postsynaptic density, and broader synaptic cleft were also prominent in the hippocampal slices after HFS with activation of GSK-3. These synaptic impairments were attenuated when GSK-3 was simultaneously inhibited by LiCl or SB216763 or transient expression of dnGSK-3. We conclude that upregulation of GSK-3 impairs the synaptic plasticity both functionally and structurally, which may underlie the GSK-3-involved memory deficits.

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Crossref · 10.1523/jneurosci.3321-07.2007

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  • GSK3β activation reduces synaptic long-term potentiation (LTP) and provides a potential biochemical mechanism by which Aβ can induce tau hyperphosphorylation.

    “GSK3β activation reduces synaptic long-term potentiation (LTP) and provides a potential biochemical mechanism by which Aβ can induce τ hyperphosphorylation [39].”

    From ApoE, ApoE Receptors, and the Synapse in Alzheimer's Disease (2017) · cites this paper as [39]

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  1. Berger TW, Yeckel M (1991) Long-term potentiation of entorhinal afferents to the hippocampus: enhanced propagation of activity through the trisyn- aptic pathway. In: Long-term potentiation: a debate of the current issues (Baudry M, Davis JL, eds), pp 327-356. Cambridge, MA: MIT.

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Authors
Zhu, L.-Q., Wang, S.-H., Liu, D., Yin, Y.-Y., Tian, Q., Wang, X.-C., Wang, Q., Chen, J.-G., & Wang, J.-Z.
Affiliations
Huazhong University of Science and Technology (CN)
Venue
The Journal of Neuroscience
Published
2007-11-07
Volume
27
Issue
45
Pages
12211-12220
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2045696000
Cited by
234
References
70
Citations by year
2026: 4 · 2025: 6 · 2024: 2 · 2023: 9 · 2022: 9 · 2021: 13 · 2020: 11 · 2019: 6 · 2018: 16 · 2017: 10 · 2016: 17 · 2015: 18 · 2014: 25 · 2013: 19 · 2012: 18
FWCI
4.25
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (30430270)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
glycogen synthase kinase-3, GSK3β, long-term potentiation, synaptic plasticity, hippocampus, Alzheimer's disease, memory impairment, synapsin I, glutamate release, postsynaptic density, synaptic cleft, lithium, SB216763, wortmannin, high-frequency stimulation
MeSH terms
Animals, Enzyme Activation, Enzyme Inhibitors, Hippocampus, Male, Neural Inhibition, Synapses, Rats, Wistar, Long-Term Potentiation, Glycogen Synthase Kinase 3, Rats

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