GO:1900271 regulation of long-term synaptic potentiation: Molecular Mechanism, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:1900271 (regulation of long-term synaptic potentiation) is a biological process that modulates the frequency, rate or extent of long-term potentiation (LTP), a persistent strengthening of synaptic transmission.
• LTP regulation involves coordinated pre- and postsynaptic signaling, including glutamate receptor trafficking, kinase cascades, and new protein synthesis.
• BDNF-TrkB signaling is a major regulator of LTP and synaptic plasticity, influencing cognitive function and dysfunction.
• Transcriptional and translational control are critical for late-phase LTP, with local mRNA dynamics and translation differentially regulated after LTP induction.
• Dysregulation of LTP is implicated in neurological and psychiatric conditions such as Alzheimer's disease, ischemia, and depression.
• CRISPR-based models (knockout, point mutation, knock-in, overexpression) enable causal dissection of genes regulating LTP.
Description
Long-term potentiation (LTP) is a widely studied cellular correlate of learning and memory, defined as a persistent increase in synaptic strength following high-frequency stimulation. The regulation of LTP, captured by the Gene Ontology term GO:1900271, encompasses any process that modulates the frequency, rate or extent of LTP. This regulatory process is essential for synaptic plasticity and cognitive function, and its disruption is linked to numerous neurological disorders. Understanding the molecular mechanisms that govern LTP regulation is a central goal in neuroscience, with implications for memory research and therapeutic development. The term GO:1900271 provides a standardized framework for annotating genes and pathways that control LTP, facilitating comparative and functional studies.
regulation of long-term synaptic potentiation At A Glance
| GO ID | GO:1900271 |
|---|---|
| GO term | regulation of long-term synaptic potentiation |
| Ontology | biological_process |
| Synonym | regulation of long-term potentiation; regulation of LTP |
| Major function | Modulates the frequency, rate or extent of long-term synaptic potentiation |
| Related process | Long-term synaptic potentiation (GO:0060291) |
| Key regulators | BDNF, TrkB, glutamate receptors, kinases, transcription factors |
| Disease relevance | Alzheimer's disease, ischemia, depression, cognitive disorders |
What Is GO:1900271?
GO:1900271 (regulation of long-term synaptic potentiation) is defined as any process that modulates the frequency, rate or extent of long-term synaptic potentiation. In other words, it includes all molecular and cellular events that either enhance or suppress the induction, maintenance, or expression of LTP, a form of synaptic plasticity characterized by a long-lasting increase in synaptic efficacy.
Why Is regulation of long-term synaptic potentiation Important in Cell Biology?
Regulation of LTP is fundamental to learning and memory, and its dysfunction is a common feature of many neurological and psychiatric disorders. Identifying the genes and pathways that regulate LTP can reveal therapeutic targets and biomarkers for cognitive decline, and it provides a mechanistic basis for understanding how experience shapes the brain.
• LTP regulation is a core mechanism of synaptic plasticity underlying learning and memory.
• BDNF-TrkB signaling regulates LTP and is linked to cognitive function and dysfunction.
• Transcriptional control of LTP-related genes is essential for long-lasting synaptic changes.
• Local mRNA translation is differentially regulated during LTP, affecting synaptic proteome remodeling.
• Dysregulated LTP contributes to Alzheimer's disease and other neurodegenerative conditions.
• Ischemic LTP is regulated by GluN2B and FKBP51, with implications for stroke recovery.
• Ketamine-induced synaptic plasticity can operate independently of LTP, highlighting distinct regulatory pathways.
• Acetylcholine-sensitive control of LTP in hippocampal CA3 neurons modulates circuit-specific plasticity.
• CRISPR screens can identify novel regulators of LTP, accelerating target discovery.
• Understanding LTP regulation aids in developing cognitive enhancers and therapies for memory disorders.
What Happens During regulation of long-term synaptic potentiation?
Induction and Glutamate Receptor Activation
In simple terms: LTP starts when glutamate receptors are strongly activated, triggering a cascade of signals.
Regulation of LTP begins with the activation of glutamate receptors, particularly NMDA receptors, which leads to calcium influx and the initiation of signaling cascades. This step is modulated by acetylcholine-sensitive mechanisms in hippocampal CA3 neurons, which can control the threshold for LTP induction. The strength and duration of receptor activation determine whether LTP is induced or not.
Kinase Cascades and Early-Phase LTP
In simple terms: Enzymes add phosphate groups to proteins, strengthening synapses in the short term.
Calcium influx activates kinases such as CaMKII, PKC, and PKA, which phosphorylate synaptic proteins and enhance AMPA receptor function, contributing to early-phase LTP. These kinase pathways are regulated by upstream signals including BDNF-TrkB, which modulates synaptic plasticity and cognitive function.
Transcriptional Regulation for Late-Phase LTP
In simple terms: Genes are turned on to make new proteins that keep synapses strong for a long time.
Late-phase LTP requires new gene expression, mediated by transcription factors such as CREB and NF-kB. Transcriptional regulation of LTP-related genes is a key control point, and dysregulation can impair long-term memory. BDNF signaling also influences transcription, linking synaptic activity to gene expression.
Local mRNA Translation and Proteome Remodeling
In simple terms: At the synapse, existing mRNAs are translated into proteins to modify synaptic strength.
Local translation of mRNAs at synapses is differentially regulated following LTP induction, allowing rapid production of proteins that stabilize synaptic changes. This process is critical for the maintenance of LTP and is subject to regulation by neuronal activity and signaling pathways.
Modulation by Neuromodulators and Environmental Factors
In simple terms: Chemicals like acetylcholine and factors like ischemia can change how easily LTP occurs.
Acetylcholine-sensitive control of LTP in hippocampal CA3 neurons demonstrates neuromodulatory regulation. Ischemic conditions regulate LTP through GluN2B and FKBP51, affecting synaptic plasticity after stroke. Ketamine-induced synaptic plasticity can occur independently of LTP, indicating multiple regulatory routes.
Key Genes Involved in GO:1900271 regulation of long-term synaptic potentiation
The following genes and proteins are key regulators of long-term synaptic potentiation, as supported by the cited literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| BDNF | Regulates synaptic plasticity and LTP via TrkB signaling | Implicated in cognitive function and dysfunction |
| TrkB | Receptor for BDNF, activates downstream signaling | Mediates BDNF effects on LTP |
| CREB1 | Transcription factor regulating late-phase LTP genes | Transcriptional control of LTP |
| CAMK2A | Kinase activated by calcium, essential for LTP induction | Early-phase LTP mechanisms |
| GRIN2B | NMDA receptor subunit GluN2B, regulates calcium influx | Ischemic LTP regulation |
| FKBP5 | Co-chaperone regulating glucocorticoid receptor and LTP | Ischemic LTP and stress responses |
| ARC | Activity-regulated cytoskeleton-associated protein, local translation | Local mRNA dynamics after LTP |
| PKM | Pyruvate kinase M, involved in metabolic regulation of LTP | Metabolic control of synaptic plasticity |
| PRKCA | Protein kinase C alpha, modulates synaptic strength | Kinase cascade in LTP |
| PRKACA | Protein kinase A catalytic subunit, regulates LTP | Signaling in early LTP |
| MAPK1 | Mitogen-activated protein kinase 1, downstream of BDNF | BDNF-TrkB signaling |
| EIF4E | Translation initiation factor, regulates local protein synthesis | Local translation in LTP |
| GRIA1 | AMPA receptor subunit GluA1, mediates synaptic transmission | Receptor trafficking in LTP |
| GRIA2 | AMPA receptor subunit GluA2, regulates calcium permeability | Synaptic plasticity |
| CHRNA7 | Nicotinic acetylcholine receptor subunit, modulates LTP | Acetylcholine-sensitive LTP |
| HOMER1 | Scaffold protein at postsynaptic density, regulates mGluR signaling | Synaptic plasticity |
| DLG4 | PSD-95 scaffold protein, organizes synaptic signaling | LTP regulation |
How Is regulation of long-term synaptic potentiation Regulated?
Regulation of LTP is controlled at multiple levels, including receptor trafficking, kinase and phosphatase activity, transcriptional programs, and local translation. BDNF-TrkB signaling acts as a major upstream regulator, modulating both early and late phases of LTP. Neuromodulators such as acetylcholine can set the threshold for LTP induction in specific circuits. Additionally, ischemic conditions and stress-related proteins like FKBP51 regulate LTP through GluN2B-dependent mechanisms. Ketamine-induced synaptic plasticity can bypass canonical LTP pathways, indicating alternative regulatory mechanisms.
regulation of long-term synaptic potentiation and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| BDNF | Alzheimer's disease, cognitive decline | Knockout and overexpression models |
| GRIN2B | Ischemic stroke, synaptic dysfunction | Point mutation knock-in |
| FKBP5 | Stress-related disorders, ischemic LTP | Knockout and point mutation |
| CREB1 | Memory disorders, impaired late-phase LTP | Knock-in and knockout |
| CHRNA7 | Schizophrenia, cognitive deficits | Knockout and overexpression |
Alzheimer's Disease and Cognitive Decline
Dysregulation of LTP is a hallmark of Alzheimer's disease, where impaired BDNF-TrkB signaling and synaptic dysfunction contribute to memory loss. Therapeutic strategies targeting LTP regulators are being explored to restore cognitive function.
Ischemic Stroke and Synaptic Plasticity
Ischemic conditions regulate LTP through GluN2B and FKBP51, affecting recovery after stroke. Modulating these pathways may enhance post-stroke plasticity and functional outcomes.
Depression and Ketamine Response
Ketamine induces synaptic plasticity that can operate independently of LTP, offering rapid antidepressant effects. Understanding these distinct mechanisms may lead to novel treatments for depression.
From regulation of long-term synaptic potentiation-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X regulate LTP induction? | Knockout cell model (e.g., hippocampal neurons) |
| Does a specific mutation in gene Y affect LTP? | Point mutation knock-in |
| How does tagging gene Z affect its function in LTP? | Tagged knock-in |
| Does overexpression of gene W enhance LTP? | Overexpression cell model |
| Which genes are essential for late-phase LTP? | CRISPR library screening |
| How does local translation change after LTP? | Ribo-seq and RNA-seq |
How to Study the regulation of long-term synaptic potentiation Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Electrophysiology | Synaptic strength and LTP magnitude | Functional validation of LTP regulators |
| RNA-seq | Transcriptional changes after LTP | Identifying gene expression programs |
| Ribo-seq | Translational efficiency and local mRNA translation | Studying local protein synthesis in LTP |
| Proteomics | Protein abundance and modifications | Synaptic proteome remodeling |
| Confocal imaging | Receptor trafficking and spine morphology | Visualizing synaptic changes |
| CRISPR screen | Gene function in LTP regulation | Discovery of novel regulators |
| Western blot | Protein expression and phosphorylation | Validating signaling pathways |
Electrophysiology
Field and patch-clamp recordings measure LTP induction and maintenance in brain slices, providing direct functional readouts.
Transcriptomics and Ribo-seq
RNA-seq and Ribo-seq reveal transcriptional and translational changes following LTP, identifying regulated genes and local mRNA dynamics.
Proteomics and Imaging
Mass spectrometry and advanced imaging quantify synaptic protein changes and receptor trafficking during LTP.
CRISPR Screening
Pooled CRISPR screens can identify novel regulators of LTP by perturbing genes and assessing synaptic phenotypes.
How CRISPR Can Be Used to Study GO:1900271 regulation of long-term synaptic potentiation
Knockout
CRISPR knockout of candidate genes in neuronal cell models or primary neurons can determine whether a gene is necessary for LTP regulation.
Point Mutation
Introducing specific point mutations (e.g., in GRIN2B or FKBP5) allows dissection of phosphorylation sites or disease-associated variants in LTP regulation.
Knock-in
Knock-in of tagged or reporter alleles enables tracking of endogenous protein localization and dynamics during LTP.
Overexpression
Overexpression of genes such as BDNF or CREB1 can test sufficiency for enhancing LTP and synaptic plasticity.
How EDITGENE Supports regulation of long-term synaptic potentiation Research
Researchers studying regulation of long-term synaptic potentiation-related genes often need to determine whether a candidate gene is causally involved in LTP modulation. EDITGENE provides comprehensive CRISPR-based services to accelerate this discovery process.
Contact EDITGENE today to design your custom CRISPR model for regulation of long-term synaptic potentiation research.
Frequently Asked Questions About regulation of long-term synaptic potentiation
What is regulation of long-term synaptic potentiation?
It is a biological process (GO:1900271) that modulates the frequency, rate or extent of long-term potentiation, a persistent strengthening of synapses.
What genes are involved in regulation of long-term synaptic potentiation?
Key genes include BDNF, TrkB, CREB1, CAMK2A, GRIN2B, FKBP5, ARC, and others.
How is LTP regulated at the molecular level?
LTP is regulated by glutamate receptor activation, kinase cascades, transcriptional programs, and local mRNA translation.
What is the role of BDNF in LTP regulation?
BDNF via TrkB signaling regulates synaptic plasticity and LTP, influencing cognitive function.
How does acetylcholine regulate LTP?
Acetylcholine-sensitive mechanisms in hippocampal CA3 neurons control LTP induction.
Is LTP regulation involved in Alzheimer's disease?
Yes, impaired BDNF-TrkB signaling and synaptic dysfunction contribute to cognitive decline in Alzheimer's disease.
How does ischemia affect LTP regulation?
Ischemic conditions regulate LTP through GluN2B and FKBP51, impacting post-stroke plasticity.
Can ketamine affect LTP?
Ketamine-induced synaptic plasticity can operate independently of LTP, suggesting distinct mechanisms.
What methods are used to study LTP regulation?
Electrophysiology, RNA-seq, Ribo-seq, proteomics, imaging, and CRISPR screens are commonly used.
How can CRISPR help study LTP regulation?
CRISPR knockout, point mutation, knock-in, and overexpression models enable causal testing of genes in LTP regulation.
Conclusion
GO:1900271 (regulation of long-term synaptic potentiation) is a critical biological process that governs synaptic plasticity and memory. Its molecular underpinnings involve a complex interplay of receptors, kinases, transcription factors, and local translation, with BDNF-TrkB signaling as a central regulator. Dysregulation of LTP is linked to Alzheimer's disease, ischemia, and depression, making it a prime target for therapeutic intervention. Advanced CRISPR models and multi-omics approaches will continue to unravel the regulatory networks, offering new opportunities for treating cognitive disorders.
References
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- 2. Piazza MK et al.. 2024. Ketamine induced synaptic plasticity operates independently of long-term potentiation.. Neuropsychopharmacology 49(11):1758-1766 PMID: 38898206
- 3. Baltaci SB et al.. 2019. Molecular Mechanisms of Early and Late LTP.. Neurochem Res 44(2):281-296 PMID: 30523578
- 4. Lu B et al.. 2014. BDNF and synaptic plasticity, cognitive function, and dysfunction.. Handb Exp Pharmacol 220:223-50 PMID: 24668475
- 5. Bliim N et al.. 2016. Transcriptional regulation of long-term potentiation.. Neurogenetics 17(4):201-210 PMID: 27318935
- 6. Lee CW et al.. 2025. Regulation of Ischemic Long-Term Potentiation in GluN2B and FKBP51 Underlying Cathodal Direct Current Stimulation.. Neurochem Res 50(5):328 PMID: 41091275
- 7. Lømo T. 2025. Long-Term Potentiation: The Accidental Discovery.. Hippocampus 35(1):e23664 PMID: 39648690
- 8. Donlin-Asp PG et al.. 2021. Differential regulation of local mRNA dynamics and translation following long-term potentiation and depression.. Proc Natl Acad Sci U S A 118(13) PMID: 33771924
