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Improved Preparation and Preservation of Hippocampal Mouse Slices for a Very Stable and Reproducible Recording of Long-term Potentiation
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Comprehensive protein synthesis inhibition impairs natural and artificial memory recall

Yeonjun Kim1,2, Ilgang Hong1,2, Bong-Kiun Kaang3,4,5,6

  • 1Center for Memory and Glioscience, Institute for Basic Science (IBS), Daejeon, South Korea.

Molecular Brain
|April 30, 2026
PubMed

Insights

New research shows that blocking protein synthesis, using a novel cocktail (CKT), impairs both natural and artificial memory recall. This suggests new proteins are essential for retrieving all types of memories.

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cognitive Science

Background:

  • Protein synthesis is crucial for memory formation and synaptic plasticity.
  • The role of protein synthesis in artificially evoked memory retrieval is not fully understood.

Purpose of the Study:

  • To investigate the necessity of de novo protein synthesis for both natural and artificially evoked memory recall.
  • To compare the effects of a translation-inhibitor cocktail (CKT) versus anisomycin alone (ANI) on memory retrieval.

Main Methods:

  • Administered anisomycin alone (ANI) or a translation-inhibitor cocktail (CKT; anisomycin and cycloheximide) immediately after memory acquisition.
  • Assessed natural and artificial memory recall following drug administration.

Main Results:

  • Anisomycin alone (ANI) impaired natural recall but preserved artificial recall.
  • The translation-inhibitor cocktail (CKT) significantly impaired both natural and artificial recall.

Conclusions:

  • De novo protein synthesis is required for both natural and artificial memory recall.
  • Comprehensive blockade of protein synthesis (CKT) has a more profound effect on memory recall than anisomycin alone.
Keywords:
AnisomycinArtificial memory recallCycloheximideEngramProtein synthesis inhibitor

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