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Long-term Potentiation01:35

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Long-term Potentiation01:25

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
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3D Modeling of Dendritic Spines with Synaptic Plasticity
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Published on: May 18, 2020

Taking LSD 1 to a new high.

Joanna Wysocka1, Thomas A Milne, C David Allis

  • 1Laboratory of Chromatin Biology, the Rockerfeller University, New York, NY 10021, USA.

Cell
|September 7, 2005
PubMed
Summary
This summary is machine-generated.

Histone demethylase LSD1

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Area of Science:

  • Epigenetics and gene regulation
  • Molecular biology
  • Biochemistry

Background:

  • Histone methylation is a key epigenetic modification regulating gene expression.
  • Histone demethylase LSD1 (lysine-specific demethylase 1) was recently discovered, challenging the notion of irreversible histone methylation.
  • LSD1's role in demethylating histone H3 lysine 4 (H3K4) was established.

Discussion:

  • Recent studies reveal that LSD1's activity and specificity are modulated by protein cofactors.
  • These cofactors play a crucial role in directing LSD1 to specific genomic targets.
  • The interaction with cofactors fine-tunes the demethylation process, impacting gene expression.

Key Insights:

  • LSD1's function is not solely dependent on the enzyme itself but is critically regulated by its protein partners.
  • Cofactor association allows for dynamic control over histone demethylation.
  • This regulatory mechanism provides a new layer of epigenetic control.

Outlook:

  • Further research into LSD1-cofactor interactions will elucidate precise roles in development and disease.
  • Targeting these interactions may offer novel therapeutic strategies for epigenetic disorders.
  • Understanding cofactor-dependent regulation is key to fully deciphering the epigenome.