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PKM and the maintenance of memory
1Department of Integrative Biology and Physiology, University of California Los Angeles, CA, 90095 USA ; Department of Neurobiology and the Brain Research Institute, David Geffen School of Medicine, University of California Los Angeles, CA, 90095 USA ; Integrative Center for Learning and Memory, University of California Los Angeles, CA, 90095 USA.
F1000 Biology Reports
|February 16, 2013
Summary
Protein kinase M zeta (PKMzeta) is crucial for maintaining established memories. Inhibiting PKMzeta erases memories but allows synapses to be retrained, sparking debate on memory persistence.
Area of Science:
- Neuroscience
- Molecular Biology
- Cognitive Science
Background:
- Understanding the molecular basis of memory persistence is a key challenge in neuroscience.
- Long-term memory requires molecular mechanisms that can stabilize synaptic changes over time.
Purpose of the Study:
- To review the role of protein kinase M zeta (PKMzeta) in the maintenance of long-term memory.
- To discuss the implications and controversies surrounding PKMzeta's function in memory consolidation.
Main Methods:
- Overview of existing literature on PKMzeta and memory.
- Analysis of studies involving inhibition of PKMzeta's catalytic activity.
Main Results:
- PKMzeta, a novel kinase and isoform of protein kinase C, is critical for maintaining certain types of memory.
- Inhibiting PKMzeta erases established memories without impairing synaptic plasticity for retraining.
Conclusions:
- PKMzeta plays a significant role in the persistence of memory.
- Further research is needed to address controversies and explore future directions in PKMzeta's role in memory maintenance.
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