Evidence for the involvement of TNF and NF-κB in hippocampal synaptic plasticity

Benedict C. Albensi, Mark P. Mattson

Research output: Contribution to journalArticle

Abstract

The cytokine tumor necrosis factor-α (TNF), well-known for its roles in cellular responses to tissue injury, has recently been shown to be produced in response to physiological activity in neuronal circuits. TNF stimulates receptors in neurons linked to the activation of the transcription factor NF- κB, and recent findings suggest that this signaling pathway can modulate neuronal excitability and vulnerability of neurons to excitotoxicity. Because data indicate that TNF is produced, and NF-κB activated, under conditions associated with learning and memory, we performed experiments in the hippocampal slice preparation aimed at elucidating roles for TNF and NF-κB in modulating synaptic plasticity. Whereas stimulation of Schaffer collateral axons at a frequency of 1 Hz induced long-term depression (LTD) of synaptic transmission in region CA1 of wild-type mice, LTD did not occur in slices from TNF receptor knockout mice. Stimulation at 100 Hz induced long-term potentiation (LTP) in slices from both wild-type mice and mice lacking TNF receptors. Basal transmission was unaltered in mice lacking TNF receptors. Pretreatment of slices from wild-type mice with κB decoy DNA prevented induction of LTD and significantly reduced the magnitude of LTP. Collectively, these data suggest important roles for TNF and signaling pathways that modulate NF-κB activity in regulation of hippocampal synaptic plasticity.

Original languageEnglish (US)
Pages (from-to)151-159
Number of pages9
JournalSynapse
Volume35
Issue number2
DOIs
StatePublished - 2000
Externally publishedYes

Fingerprint

Neuronal Plasticity
Tumor Necrosis Factor Receptors
Tumor Necrosis Factor-alpha
Long-Term Potentiation
Neurons
Knockout Mice
Synaptic Transmission
Axons
Hippocampus
Transcription Factors
Learning
Cytokines
DNA
Wounds and Injuries

Keywords

  • Hippocampal slice
  • Long-term depression
  • Long-term potentiation
  • Synaptic plasticity
  • Transcription
  • Tumor necrosis factor

ASJC Scopus subject areas

  • Neuroscience(all)
  • Physiology
  • Pharmacology

Cite this

Evidence for the involvement of TNF and NF-κB in hippocampal synaptic plasticity. / Albensi, Benedict C.; Mattson, Mark P.

In: Synapse, Vol. 35, No. 2, 2000, p. 151-159.

Research output: Contribution to journalArticle

Albensi, Benedict C. ; Mattson, Mark P. / Evidence for the involvement of TNF and NF-κB in hippocampal synaptic plasticity. In: Synapse. 2000 ; Vol. 35, No. 2. pp. 151-159.
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