GO:0050768 negative regulation of neurogenesis: Signaling Mechanisms, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0050768 (negative regulation of neurogenesis) describes any process that stops, prevents, or reduces the generation of new neurons in the nervous system.
• It is essential for balancing neural stem cell activation, differentiation, and survival during development and adult neurogenesis.
• Key negative regulators include proBDNF, myostatin, glucocorticoids, inflammatory cytokines, and FOXO3a.
• Dysregulation of this process contributes to cognitive decline, impaired brain repair, and neurodegenerative conditions.
• CRISPR knockout, point mutation, knock-in, and overexpression models enable causal testing of candidate negative regulators.
• Studying this term requires combining transcriptomics, imaging, and functional assays in neural stem/progenitor cells and animal models.
Description
Negative regulation of neurogenesis (GO:0050768) is a biological process that stops, prevents, or reduces the frequency, rate, or extent of neurogenesis, the generation of cells within the nervous system. This process is critical for maintaining the proper balance between neural stem cell quiescence and activation, ensuring that new neurons are produced only when and where needed. In the adult brain, negative regulation of neurogenesis helps preserve the neural stem cell pool and prevents excessive or aberrant neurogenesis that could disrupt circuit function. Understanding this term is therefore central to developmental neurobiology, regenerative medicine, and the study of cognitive aging. Researchers investigate negative regulation of neurogenesis to identify molecular brakes that can be targeted to enhance brain repair after injury or in neurodegenerative disease. The process is mediated by a diverse set of signaling molecules, including proBDNF, myostatin, glucocorticoids, inflammatory mediators, and transcription factors such as FOXO3a. Because many of these regulators are context-dependent, precise experimental models are needed to dissect their causal roles.
negative regulation of neurogenesis At A Glance
| GO ID | GO:0050768 |
|---|---|
| GO term | negative regulation of neurogenesis |
| Ontology | biological_process |
| Synonym | down regulation of neurogenesis, down-regulation of neurogenesis, downregulation of neurogenesis, inhibition of neurogenesis |
| Major function | Suppression of the generation of new neurons in the nervous system |
| Related processes | Regulation of neural stem cell proliferation, differentiation, and survival |
| Cellular context | Neural stem cells, neural progenitors, and their niche |
| Key regulators | proBDNF, myostatin, glucocorticoids, inflammatory cytokines, FOXO3a, Shh signaling components |
What Is GO:0050768?
According to the Gene Ontology, negative regulation of neurogenesis (GO:0050768) is any process that stops, prevents, or reduces the frequency, rate or extent of neurogenesis, the generation of cells within the nervous system. In other words, it encompasses all molecular and cellular events that suppress the production of new neurons, whether during embryonic development or in adult neurogenic niches. This regulation can occur at multiple levels, including inhibition of neural stem cell proliferation, promotion of quiescence, induction of cell cycle exit, or increased cell death of neural progenitors. It is a biological_process term and is distinct from positive regulation of neurogenesis (GO:0050769).
Why Is negative regulation of neurogenesis Important in Cell Biology?
Negative regulation of neurogenesis is essential for normal brain development and adult brain function. It prevents uncontrolled neural stem cell activation, maintains the stem cell pool over the lifespan, and ensures that new neurons integrate appropriately into existing circuits. Dysregulation of this process is linked to cognitive decline during aging, impaired recovery after spinal cord injury or stroke, and neurodegenerative conditions. Understanding the molecular brakes on neurogenesis can reveal therapeutic targets to promote brain repair and counteract age-related cognitive loss.
• Maintains the balance between neural stem cell quiescence and activation in adult neurogenic niches.
• Prevents exhaustion of the neural stem cell pool by limiting excessive proliferation.
• Mediates the negative effects of aging systemic factors on hippocampal neurogenesis and cognition.
• Contributes to reduced neurogenesis after spinal cord injury through myostatin signaling.
• Links chronic stress and inflammation to suppressed adult neurogenesis via glucocorticoids and cytokines.
• Involves proBDNF signaling that restricts peripheral neurogenesis in sensory ganglia.
• Is modulated by FOXO3a downstream of amyloid precursor protein intracellular domain, relevant to Alzheimer's disease.
• Impacts neurogenic response after cortical ischemic stroke through microglia-neural stem cell interactions.
• Provides a conceptual framework for developing therapies that enhance endogenous brain repair.
• Serves as a key term for annotating gene function in neurodevelopmental and neurodegenerative research.
What Happens During negative regulation of neurogenesis?
Inhibition of neural stem cell proliferation
In simple terms: This step slows down or stops the division of stem cells that would otherwise become new neurons.
Negative regulation of neurogenesis often begins with reduced proliferation of neural stem and progenitor cells. Signaling molecules such as proBDNF can suppress the cell cycle in sensory ganglia, limiting the production of new neurons. Similarly, myostatin acts as a negative regulator of adult neurogenesis after spinal cord injury in zebrafish, reducing progenitor proliferation. Glucocorticoids and inflammatory mediators also inhibit neural stem cell proliferation in the adult hippocampus. These effects help preserve the stem cell pool and prevent exhaustion.
Promotion of quiescence and cell cycle exit
In simple terms: Some signals push neural stem cells into a resting state or make them stop dividing permanently.
Negative regulation can also involve promoting quiescence or terminal cell cycle exit of neural progenitors. FOXO3a, downstream of amyloid precursor protein intracellular domain, inhibits adult hippocampal neurogenesis by promoting cell cycle exit. This mechanism is important for maintaining a reserve of stem cells that can be activated later. The balance between quiescence and activation is tightly controlled by niche signals and systemic factors.
Induction of progenitor cell death
In simple terms: In some cases, negative regulation eliminates excess or damaged neural progenitors by triggering cell death.
Apoptosis of neural progenitor cells is a common mechanism to reduce neurogenesis. Inflammatory cytokines and glucocorticoids can increase cell death of newborn neurons in the adult hippocampus. This ensures that only healthy cells survive and integrate into circuits. The precise triggers depend on the developmental stage and brain region.
Modulation by systemic and niche factors
In simple terms: Factors from the blood and surrounding brain cells can tell neural stem cells to slow down.
The aging systemic milieu contains factors that negatively regulate neurogenesis and cognitive function, as shown by heterochronic parabiosis experiments. Microglia in the subventricular zone interact with neural stem cells to impact the neurogenic response after cortical ischemic stroke. These niche interactions highlight that negative regulation is not cell-intrinsic but heavily influenced by the microenvironment.
Integration with developmental signaling pathways
In simple terms: Developmental signals like Shh can both promote and inhibit neurogenesis depending on context.
Shh signaling has both positive and negative roles in vertebrate retinal development, illustrating how the same pathway can context-dependently regulate neurogenesis. Negative regulation of neurogenesis may therefore involve modulation of Shh, Notch, and other developmental pathways. Understanding these context-specific effects is crucial for interpreting gene function.
Key Genes Involved in GO:0050768 negative regulation of neurogenesis
The following genes and proteins have been experimentally implicated in negative regulation of neurogenesis (GO:0050768) according to the verified literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| BDNF | proBDNF signaling negatively regulates peripheral neurogenesis in sensory ganglia | Target for studying neurogenesis inhibition in adult sensory systems |
| MSTN | Myostatin acts as a negative regulator of adult neurogenesis after spinal cord injury | Model for injury-induced suppression of neurogenesis |
| FOXO3a | Inhibits adult hippocampal neurogenesis downstream of APP intracellular domain | Link to Alzheimer's disease and cognitive decline |
| APP | Amyloid precursor protein intracellular domain regulates FOXO3a to inhibit neurogenesis | Relevant to Alzheimer's disease pathology |
| SHH | Sonic hedgehog signaling has positive and negative roles in retinal development | Context-dependent regulator of neurogenesis |
| NR3C1 | Glucocorticoid receptor mediates stress-induced suppression of neurogenesis | Target for stress and inflammation studies |
| IL1B | Inflammatory cytokine that negatively regulates adult neurogenesis | Link between inflammation and impaired neurogenesis |
| TNF | Pro-inflammatory cytokine contributing to reduced neurogenesis | Model for inflammation-induced cognitive decline |
| CD68 | Microglial marker involved in neurogenic niche interactions after stroke | Studying microglia-neural stem cell crosstalk |
| GFAP | Astrocyte and neural stem cell marker; altered in negative regulation contexts | Lineage tracing and niche analysis |
| DCX | Marker of immature neurons; decreased when neurogenesis is inhibited | Quantifying negative regulation in vivo |
| SOX2 | Neural stem cell transcription factor; maintenance of stem pool | Assessing stem cell quiescence |
| NES | Nestin, neural progenitor marker; expression changes with neurogenesis levels | Characterizing progenitor populations |
| MKI67 | Proliferation marker; reduced under negative regulation | Measuring inhibition of neural stem cell proliferation |
| CASP3 | Apoptosis marker; increased in progenitor cell death | Detecting cell death in neurogenic niches |
| NOTCH1 | Notch signaling maintains quiescence and inhibits neurogenesis | Studying cell fate decisions |
| ID1 | Inhibitor of differentiation; blocks neuronal differentiation | Model for differentiation blockade |
| REST | Repressor of neuronal genes; restricts neurogenesis | Epigenetic regulation of neurogenesis |
How Is negative regulation of neurogenesis Regulated?
Negative regulation of neurogenesis is itself controlled by multiple signaling pathways and systemic factors. The aging systemic milieu contains circulating factors that suppress neurogenesis and impair cognitive function, as demonstrated by parabiosis experiments. Glucocorticoids and inflammatory cytokines, acting through receptors such as NR3C1, mediate stress- and inflammation-induced inhibition of adult neurogenesis. Myostatin signaling is induced after spinal cord injury and negatively regulates neurogenesis in zebrafish. FOXO3a, downstream of APP intracellular domain, provides a cell-intrinsic brake on hippocampal neurogenesis. Microglia-neural stem cell interactions in the subventricular zone modulate the neurogenic response after ischemic stroke. Shh signaling can both promote and inhibit neurogenesis depending on developmental context. These layers of regulation ensure that neurogenesis is tightly coupled to physiological state and environmental cues.
negative regulation of neurogenesis and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| FOXO3a | Alzheimer's disease, cognitive decline | Knockout or overexpression in mouse hippocampus |
| MSTN | Spinal cord injury, impaired neurogenesis | Zebrafish knockout or knockdown |
| IL1B | Neuroinflammation, depression | Overexpression or knockout in adult mouse brain |
| APP | Alzheimer's disease | Knock-in of familial mutations in mice |
| CD68 | Ischemic stroke, microglia-neural stem cell crosstalk | Microglia-specific knockout in stroke models |
Cognitive aging and neurodegeneration
Aging is associated with reduced hippocampal neurogenesis and cognitive decline. The aging systemic milieu negatively regulates neurogenesis and cognitive function, as shown by heterochronic parabiosis. FOXO3a-dependent inhibition of adult hippocampal neurogenesis downstream of APP intracellular domain links negative regulation to Alzheimer's disease pathology. These findings suggest that targeting negative regulators could mitigate age-related cognitive loss.
Spinal cord injury and impaired repair
After spinal cord injury, myostatin acts as a negative regulator of adult neurogenesis in zebrafish, limiting the regenerative response. This suggests that blocking myostatin signaling might enhance endogenous neurogenesis and functional recovery. Similar mechanisms may operate in mammalian injury models.
Stroke and neuroinflammation
In a mouse model of cortical ischemic stroke, interactions between subventricular zone microglia and neural stem cells impact the neurogenic response. Inflammatory mediators such as IL1B and TNF, along with glucocorticoids, suppress adult neurogenesis. Modulating these negative regulators could promote repair after stroke.
Stress-related psychiatric disorders
Chronic stress and elevated glucocorticoids negatively regulate adult neurogenesis, contributing to mood disorders and cognitive impairment. Understanding these pathways may lead to new treatments for stress-related psychiatric conditions.
From negative regulation of neurogenesis-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X negatively regulate neural stem cell proliferation? | CRISPR knockout in neural stem cells followed by proliferation assays |
| Does a point mutation in gene Y alter its inhibitory function? | Point-mutation knock-in in mouse or human neural progenitors |
| Does overexpression of gene Z suppress neurogenesis in vivo? | Transgenic overexpression in adult mouse hippocampus |
| Does a tagged version of protein W localize to neural stem cells? | Knock-in of epitope tag for imaging and co-IP |
| Does gene V mediate injury-induced inhibition of neurogenesis? | Knockout in zebrafish spinal cord injury model |
| Does microglial gene U affect neurogenic response after stroke? | Conditional knockout in microglia in mouse stroke model |
How to Study the negative regulation of neurogenesis Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Global gene expression changes | Identifying negative regulators in neurogenic niches |
| Single-cell RNA-seq | Cell-type-specific expression heterogeneity | Dissecting microglia-neural stem cell crosstalk |
| Immunohistochemistry | Protein markers of proliferation and neurogenesis | Quantifying DCX+ and MKI67+ cells in brain sections |
| Neurosphere assay | Self-renewal and multipotency of neural stem cells | Testing effects of gene knockout on stem cell activity |
| Co-immunoprecipitation | Protein-protein interactions | Identifying FOXO3a complexes |
| Mass spectrometry | Protein abundance and modifications | Proteomic profiling of neurogenic niches |
| CRISPR knockout | Loss-of-function phenotypes | Causal testing of candidate negative regulators |
| Transgenic overexpression | Gain-of-function effects | Testing if a gene suppresses neurogenesis in vivo |
Transcriptomic profiling of neurogenic niches
RNA sequencing of sorted neural stem cells and progenitors can reveal gene expression changes associated with negative regulation of neurogenesis. Comparing quiescent versus activated stem cells identifies candidate negative regulators. Single-cell RNA-seq allows dissection of heterogeneity within the niche.
Imaging of neurogenesis in vivo
Immunohistochemistry for markers such as DCX, MKI67, and SOX2 quantifies neurogenesis and proliferation in brain sections. Confocal imaging of transgenic reporters enables lineage tracing. These methods are essential to validate functional effects of candidate genes.
Functional assays in neural stem cell cultures
Neurosphere assays and differentiation assays measure self-renewal and neuronal differentiation capacity. Knockdown or knockout of candidate genes can test their role in negative regulation. These in vitro systems allow mechanistic dissection of signaling pathways.
Proteomics and interactomics
Mass spectrometry-based proteomics can identify protein complexes involved in negative regulation, such as FOXO3a-containing complexes. Co-immunoprecipitation followed by mass spectrometry reveals interacting partners. These approaches complement genetic studies.
How CRISPR Can Be Used to Study GO:0050768 negative regulation of neurogenesis
Knockout
CRISPR knockout of candidate genes in neural stem cells or animal models can test whether they are required for negative regulation of neurogenesis. For example, knocking out MSTN in zebrafish may enhance neurogenesis after spinal cord injury. Similarly, FOXO3a knockout in mice could increase hippocampal neurogenesis. Knockout studies provide causal evidence for gene function.
Point Mutation
Point mutations can dissect specific domains or phosphorylation sites required for negative regulation. For instance, mutating the DNA-binding domain of FOXO3a would test its transcriptional role in inhibiting neurogenesis. Point mutations in APP that cause familial Alzheimer's disease can be introduced to study effects on neurogenesis. These models are valuable for understanding mechanism.
Knock-in
Knock-in of reporter tags or human disease mutations allows tracking of endogenous proteins and their effects. Tagging FOXO3a with GFP enables live imaging of its localization in neural stem cells. Knock-in of disease-associated mutations in APP or other genes can model human conditions. These approaches preserve endogenous regulation.
Overexpression
Overexpression of negative regulators such as proBDNF or myostatin can suppress neurogenesis in vivo, mimicking pathological states. Transgenic overexpression in specific brain regions allows spatial and temporal control. Overexpression studies complement loss-of-function approaches.
How EDITGENE Supports negative regulation of neurogenesis Research
Researchers studying negative regulation of neurogenesis-related genes often need to determine whether a candidate gene is causally involved in suppressing neural stem cell proliferation, differentiation, or survival. EDITGENE provides a comprehensive suite of CRISPR services to enable such investigations, from knockout to knock-in and library screening.
Contact EDITGENE today to design your custom CRISPR model for negative regulation of neurogenesis research.
Frequently Asked Questions About negative regulation of neurogenesis
What is negative regulation of neurogenesis (GO:0050768)?
It is any biological process that stops, prevents, or reduces the generation of new neurons in the nervous system, as defined by the Gene Ontology.
What genes are involved in negative regulation of neurogenesis?
Key genes include BDNF (proBDNF), MSTN (myostatin), FOXO3a, APP, SHH, NR3C1, IL1B, TNF, and REST, among others.
How does aging affect negative regulation of neurogenesis?
The aging systemic milieu contains factors that negatively regulate neurogenesis and cognitive function, as shown by heterochronic parabiosis experiments.
What role does myostatin play in neurogenesis?
Myostatin acts as a negative regulator of adult neurogenesis after spinal cord injury in zebrafish, limiting the regenerative response.
How do glucocorticoids regulate neurogenesis?
Glucocorticoids, acting through the glucocorticoid receptor, mediate stress-induced suppression of adult neurogenesis.
What is the link between inflammation and negative regulation of neurogenesis?
Inflammatory cytokines such as IL1B and TNF contribute to reduced adult neurogenesis, linking neuroinflammation to impaired brain function.
How does FOXO3a inhibit neurogenesis?
FOXO3a, downstream of amyloid precursor protein intracellular domain, inhibits adult hippocampal neurogenesis by promoting cell cycle exit.
Can CRISPR be used to study negative regulation of neurogenesis?
Yes, CRISPR knockout, point mutation, knock-in, and overexpression models enable causal testing of candidate genes in neural stem cells and animal models.
What methods are used to measure negative regulation of neurogenesis?
Common methods include RNA-seq, single-cell RNA-seq, immunohistochemistry for DCX and MKI67, neurosphere assays, and proteomics.
How does stroke affect negative regulation of neurogenesis?
After cortical ischemic stroke, microglia-neural stem cell interactions in the subventricular zone impact the neurogenic response, often suppressing it.
Conclusion
Negative regulation of neurogenesis (GO:0050768) is a fundamental biological process that controls the production of new neurons in the nervous system. It involves diverse molecular players such as proBDNF, myostatin, FOXO3a, glucocorticoids, and inflammatory cytokines, and is critical for maintaining neural stem cell homeostasis and cognitive function. Dysregulation of this process contributes to aging-related cognitive decline, impaired repair after injury, and neurodegenerative diseases. By leveraging CRISPR-based models and multi-omics approaches, researchers can dissect the causal roles of individual genes and identify therapeutic targets to modulate neurogenesis. EDITGENE provides the tools and expertise to accelerate such discoveries.
References
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- 2. Ma W et al.. 2021. Negative regulation by proBDNF signaling of peripheral neurogenesis in the sensory ganglia of adult rats.. Biomed Pharmacother 144:112273 PMID: 34700232
- 3. Villeda SA et al.. 2011. The ageing systemic milieu negatively regulates neurogenesis and cognitive function.. Nature 477(7362):90-4 PMID: 21886162
- 4. Lucassen PJ et al.. 2015. Regulation of Adult Neurogenesis and Plasticity by (Early) Stress, Glucocorticoids, and Inflammation.. Cold Spring Harb Perspect Biol 7(9):a021303 PMID: 26330520
- 5. Saraswathy VM et al.. 2022. Myostatin is a negative regulator of adult neurogenesis after spinal cord injury in zebrafish.. Cell Rep 41(8):111705 PMID: 36417881
- 6. Respondek M et al.. 2015. [Regulation of neurogenesis: factors affecting of new neurons formation in adult mammals brain].. Postepy Hig Med Dosw (Online) 69:1451-61 PMID: 27259217
- 7. Jiang M et al.. 2020. Amyloid precursor protein intracellular domain-dependent regulation of FOXO3a inhibits adult hippocampal neurogenesis.. Neurobiol Aging 95:250-263 PMID: 32866886
- 8. Nath S et al.. 2024. Interaction between subventricular zone microglia and neural stem cells impacts the neurogenic response in a mouse model of cortical ischemic stroke.. Nat Commun 15(1):9095 PMID: 39448558
