GO:1900409 positive regulation of cellular response to oxidative stress: Signaling Pathways, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:1900409 describes any process that activates or increases the frequency, rate or extent of the cellular response to oxidative stress.
• Key regulators include METTL14, YTHDF1, p53, p21, LCN2, Pirin, Wee1, and Gtr1p, which modulate antioxidant defenses, ferroptosis, and inflammatory signaling.
• Dysregulation of this process contributes to vascular ageing, acute lung inflammation, cancer progression, and ischemia/reperfusion injury.
• Experimental models range from yeast (Schizosaccharomyces pombe, Saccharomyces cerevisiae) to mammalian cell lines and knockout mice.
• CRISPR knockout, point mutation, knock-in, and overexpression models enable causal dissection of positive regulators in oxidative stress responses.
• The term is relevant to ferroptosis, mitochondrial function, m6A RNA methylation, and inflammatory signaling pathways.
Description
Positive regulation of cellular response to oxidative stress (GO:1900409) is a biological process that encompasses any mechanism which activates or increases the frequency, rate or extent of a cell's response to oxidative stress. Oxidative stress arises when reactive oxygen species (ROS) overwhelm cellular antioxidant capacity, leading to damage of lipids, proteins, and DNA. Cells have evolved sophisticated surveillance and adaptive systems to detect ROS and mount protective responses, and the positive regulation of these responses is critical for survival and homeostasis. This GO term is essential for researchers studying redox biology, aging, inflammation, cancer, and neurodegeneration, as it defines the upstream events that amplify or sustain antioxidant defense programs. Understanding which genes and pathways positively regulate this response can reveal therapeutic targets for diseases driven by oxidative damage.
positive regulation of cellular response to oxidative stress At A Glance
| GO ID | GO:1900409 |
|---|---|
| GO term | positive regulation of cellular response to oxidative stress |
| Ontology | biological_process |
| Synonym | activation of adaptive response to oxidative stress; upregulation of cellular response to oxidative stress |
| Major function | Activates or increases the cellular response to oxidative stress |
| Related processes | Ferroptosis, mitochondrial function, inflammatory signaling, m6A RNA methylation |
| Key regulators | METTL14, YTHDF1, p53, p21, LCN2, Pirin, Wee1, Gtr1p |
| Disease relevance | Vascular ageing, acute lung inflammation, cancer, ischemia/reperfusion injury |
What Is GO:1900409?
GO:1900409 is defined as any process that activates or increases the frequency, rate or extent of the cellular response to oxidative stress. In other words, it covers the molecular events that boost a cell's ability to sense and counteract oxidative damage, including the upregulation of antioxidant enzymes, activation of stress-responsive transcription factors, and enhancement of repair pathways.
Why Is positive regulation of cellular response to oxidative stress Important in Cell Biology?
Positive regulation of cellular response to oxidative stress is fundamental to cell survival under adverse conditions. It determines whether a cell can adapt to ROS exposure or succumbs to oxidative damage, influencing outcomes in aging, cancer, cardiovascular disease, and neurodegeneration. The process is tightly linked to ferroptosis, a form of regulated cell death driven by iron-dependent lipid peroxidation, and to inflammatory signaling, making it a central node in disease pathogenesis. Understanding its regulators provides opportunities for therapeutic intervention and biomarker discovery.
• Protects cells from oxidative damage by amplifying antioxidant defenses.
• Modulates ferroptosis, a key cell death pathway in cancer and ischemia.
• Influences vascular ageing through epigenetic regulators like METTL14.
• Drives acute lung inflammation via iron accumulation and LCN2.
• Links RNA methylation (m6A) to oxidative stress responses.
• Affects T cell expansion and mitochondrial function.
• Contributes to hepatocellular carcinoma progression via Pirin.
• Regulated by cell cycle kinases such as Wee1 in yeast models.
• Involves small GTPases like Gtr1p in yeast oxidative stress response.
• Provides targets for CRISPR-based functional genomics screens.
What Happens During positive regulation of cellular response to oxidative stress?
Sensing oxidative stress and initiating the response
In simple terms: Cells first detect dangerous oxygen molecules and turn on a defense program.
The cellular response to oxidative stress begins with sensors that detect ROS or altered redox balance. Positive regulation can occur at this sensing step, enhancing the sensitivity or amplitude of the signal. For example, in Schizosaccharomyces pombe, absence of Wee1 alters the global transcriptional response to oxidative stress, indicating that cell cycle regulators can modulate the initiation of the stress response. Similarly, Gtr1p is involved in the oxidative stress response in Saccharomyces cerevisiae, suggesting a role for small GTPases in sensing or signaling.
Transcriptional and post-transcriptional amplification
In simple terms: The cell makes more protective proteins by boosting gene expression and RNA handling.
Positive regulation often involves increasing the transcription of antioxidant genes or stabilizing their mRNAs. p53 and Rb differentially regulate p21 in response to oxidative stress, linking tumor suppressors to cell cycle arrest and survival decisions. METTL14, an m6A methyltransferase, when deleted, attenuates vascular ageing, implicating m6A modification in the positive regulation of oxidative stress responses. YTHDF1, an m6A reader, promotes p53 translation and induces ferroptosis during cerebral ischemia/reperfusion, showing post-transcriptional control of oxidative stress-related cell death.
Metabolic and mitochondrial adaptations
In simple terms: Cells adjust their energy production and use of iron to survive oxidative stress.
Mitochondria are both sources and targets of ROS. Positive regulation can enhance mitochondrial quality control or shift metabolism to reduce ROS production. PGE2 inhibits TIL expansion by disrupting IL-2 signaling and mitochondrial function, indicating that inflammatory mediators can negatively impact mitochondrial resilience, and by extension, positive regulation of oxidative stress responses may counteract such effects. LCN2 promotes acute lung inflammation and oxidative stress by enhancing macrophage iron accumulation, linking iron metabolism to oxidative stress amplification.
Inflammatory signaling and cell fate decisions
In simple terms: Inflammation and oxidative stress are connected, and the cell decides whether to survive or die.
Positive regulation of oxidative stress responses intersects with inflammatory pathways. Nuclear Pirin promotes hepatocellular carcinoma by acting as an inflammation-facilitating factor, suggesting that it may enhance oxidative stress responses in the tumor microenvironment. The balance between adaptive survival and cell death (e.g., ferroptosis) is influenced by positive regulators such as YTHDF1 and p53.
Key Genes Involved in GO:1900409 positive regulation of cellular response to oxidative stress
The following genes and proteins have been experimentally linked to the positive regulation of cellular response to oxidative stress.
| Gene | Major Role | Research Relevance |
|---|---|---|
| METTL14 | m6A RNA methyltransferase; epigenetic regulator | Deletion attenuates vascular ageing; links RNA methylation to oxidative stress |
| YTHDF1 | m6A reader; promotes p53 translation | Induces ferroptosis during cerebral ischemia/reperfusion |
| TP53 | Tumor suppressor; transcription factor | Regulates p21 and cell cycle in oxidative stress |
| CDKN1A (p21) | Cyclin-dependent kinase inhibitor | Differentially regulated by p53 and Rb in oxidative stress |
| LCN2 | Lipocalin-2; iron-binding protein | Promotes acute lung inflammation and oxidative stress via macrophage iron accumulation |
| PIR | Nuclear Pirin; inflammation-facilitating factor | Promotes hepatocellular carcinoma |
| WEE1 | Cell cycle kinase | Absence alters global transcriptional response to oxidative stress in S. pombe |
| GTR1 | Small GTPase | Involved in oxidative stress response in S. cerevisiae |
| IL2 | T cell growth factor | PGE2 disrupts IL-2 signaling and mitochondrial function |
| PTGS2 (COX-2) | Prostaglandin synthase | Produces PGE2, which inhibits TIL expansion |
| RB1 | Retinoblastoma protein | Regulates p21 in oxidative stress |
| NFE2L2 (NRF2) | Transcription factor (implied by pathway) | Not directly cited in provided references, but central to antioxidant response |
| HIF1A | Hypoxia-inducible factor | Not directly cited in provided references, but linked to oxidative stress |
| FOXO3 | Forkhead transcription factor | Not directly cited in provided references, but regulates antioxidant genes |
| SOD1 | Superoxide dismutase 1 | Not directly cited in provided references, but key antioxidant enzyme |
| CAT | Catalase | Not directly cited in provided references, but key antioxidant enzyme |
| GPX4 | Glutathione peroxidase 4 | Not directly cited in provided references, but critical for ferroptosis regulation |
How Is positive regulation of cellular response to oxidative stress Regulated?
The positive regulation of cellular response to oxidative stress is itself controlled at multiple levels. In yeast, Wee1 kinase activity modulates the transcriptional response to oxidative stress, indicating cell cycle-dependent regulation. Gtr1p, a small GTPase, is involved in the oxidative stress response, suggesting regulation by nutrient-sensing pathways. In mammals, m6A RNA methylation by METTL14 and recognition by YTHDF1 provide post-transcriptional control of oxidative stress-related genes such as p53. Inflammatory mediators like PGE2 can disrupt mitochondrial function and IL-2 signaling, indirectly affecting the capacity for positive regulation. Iron metabolism, regulated by LCN2, also influences oxidative stress amplification.
positive regulation of cellular response to oxidative stress and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| METTL14 | Vascular ageing | Knockout mouse or endothelial cell line |
| YTHDF1 | Cerebral ischemia/reperfusion injury, ferroptosis | Knockout mouse or neuronal cell line |
| LCN2 | Acute lung inflammation | Knockout mouse or macrophage cell line |
| PIR | Hepatocellular carcinoma | Knockout or overexpression in liver cancer cell lines |
| TP53 | Cancer, oxidative stress response | Point mutation knock-in in cancer cell lines |
Cancer and tumor microenvironment
Positive regulation of oxidative stress responses plays a dual role in cancer. Nuclear Pirin promotes hepatocellular carcinoma by facilitating inflammation, suggesting that enhancing oxidative stress responses can support tumor progression. Conversely, YTHDF1-mediated p53 translation and ferroptosis induction can suppress tumor growth during ischemia/reperfusion. p53 and p21 regulation in oxidative stress is critical for cell cycle arrest and survival, with implications for chemotherapy resistance.
Cardiovascular and metabolic diseases
METTL14 deletion attenuates vascular ageing, linking m6A-dependent positive regulation of oxidative stress responses to vascular pathology. LCN2 promotes acute lung inflammation and oxidative stress by enhancing macrophage iron accumulation, contributing to inflammatory lung diseases. These findings suggest that targeting positive regulators could mitigate cardiovascular and pulmonary damage.
Ischemia/reperfusion injury and ferroptosis
YTHDF1 promotes p53 translation and induces ferroptosis during acute cerebral ischemia/reperfusion through m6A-dependent binding, highlighting the role of positive regulation in neuronal cell death. This pathway represents a potential therapeutic target for stroke and other ischemic conditions.
Immune regulation and inflammation
PGE2 inhibits TIL expansion by disrupting IL-2 signaling and mitochondrial function, which may impair the positive regulation of oxidative stress responses in immune cells. LCN2 and Pirin further illustrate how inflammatory signals intersect with oxidative stress pathways in diseases such as acute lung injury and liver cancer.
From positive regulation of cellular response to oxidative stress-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X positively regulate oxidative stress response? | CRISPR knockout in cell line, followed by oxidative stress challenge |
| What is the effect of a specific point mutation in gene X? | Point mutation knock-in via CRISPR |
| How does gene X overexpression affect ROS levels? | CRISPR activation or cDNA overexpression |
| What is the localization of gene X during oxidative stress? | Tagged knock-in (e.g., GFP) and imaging |
| Which genes are essential for oxidative stress resistance? | Genome-wide CRISPR library screening |
| How does gene X affect ferroptosis? | Knockout and ferroptosis induction assays |
How to Study the positive regulation of cellular response to oxidative stress Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Global transcriptional changes | Identify oxidative stress-responsive genes |
| MeRIP-seq | m6A RNA methylation sites | Map METTL14/YTHDF1 targets |
| Ribo-seq | Translational efficiency | Assess p53 translation under stress |
| Proteomics | Protein abundance and modifications | Quantify antioxidant enzymes |
| ROS detection assays | Reactive oxygen species levels | Measure oxidative stress in cells |
| CRISPR knockout screening | Gene essentiality under stress | Discover positive regulators |
| CRISPR activation screening | Gene overexpression effects | Identify enhancers of stress response |
Transcriptomic profiling
RNA-seq can reveal global transcriptional changes in response to oxidative stress and identify genes whose expression is positively regulated. In S. pombe, absence of Wee1 alters the global transcriptional response to oxidative stress, demonstrating the power of transcriptomics.
Proteomics and post-translational modifications
Mass spectrometry-based proteomics can quantify changes in antioxidant enzymes and detect oxidative modifications. m6A RNA methylation studies, such as those on METTL14 and YTHDF1, require immunoprecipitation and sequencing to map modified transcripts.
Functional assays for oxidative stress
ROS levels can be measured with fluorescent probes (e.g., DCFDA), and cell survival under oxidative stress can be assessed by viability assays. Ferroptosis can be monitored by lipid peroxidation markers and iron chelators.
CRISPR screening and bioinformatics
Genome-wide CRISPR knockout or activation screens coupled with oxidative stress selection can identify positive regulators. Bioinformatics pipelines are needed to analyze sgRNA enrichment and map hits to pathways.
How CRISPR Can Be Used to Study GO:1900409 positive regulation of cellular response to oxidative stress
Knockout
CRISPR knockout is used to delete candidate positive regulators and assess whether oxidative stress responses are impaired. For example, METTL14 knockout attenuates vascular ageing, and YTHDF1 knockout reduces p53 translation and ferroptosis.
Point Mutation
Point mutation knock-in can model specific amino acid changes in regulators to dissect domain functions. For p53, point mutations in DNA-binding domains alter its ability to regulate p21 under oxidative stress.
Knock-in
Tagged knock-in (e.g., GFP, HA) allows visualization and immunoprecipitation of endogenous proteins. This is useful for studying localization and interaction dynamics of regulators like Gtr1p or Pirin.
Overexpression
CRISPR activation or cDNA overexpression can test whether increasing a gene's dosage enhances oxidative stress resistance. Overexpression of LCN2 promotes iron accumulation and oxidative stress in macrophages.
How EDITGENE Supports positive regulation of cellular response to oxidative stress Research
Researchers studying positive regulation of cellular response to oxidative stress-related genes often need to determine whether a candidate gene is causally involved in the response or merely correlated with it. This requires precise genetic manipulation, which is where EDITGENE's CRISPR services can accelerate discovery.
Contact EDITGENE today to design your custom CRISPR model for positive regulation of cellular response to oxidative stress research.
Frequently Asked Questions About positive regulation of cellular response to oxidative stress
What is GO:1900409?
GO:1900409 is the Gene Ontology term for positive regulation of cellular response to oxidative stress, describing any process that activates or increases the cellular response to oxidative stress.
What genes are involved in positive regulation of cellular response to oxidative stress?
Key genes include METTL14, YTHDF1, TP53, CDKN1A, LCN2, PIR, WEE1, and GTR1, among others.
How does oxidative stress response relate to ferroptosis?
YTHDF1 promotes p53 translation and induces ferroptosis during ischemia/reperfusion, linking oxidative stress regulation to ferroptosis.
What diseases are associated with dysregulated oxidative stress response?
Vascular ageing, acute lung inflammation, hepatocellular carcinoma, and cerebral ischemia/reperfusion injury are linked to this process.
Which model organisms are used to study oxidative stress response?
Yeast such as Schizosaccharomyces pombe and Saccharomyces cerevisiae are used, as well as mammalian cell lines and mice.
How can CRISPR help study positive regulation of oxidative stress response?
CRISPR knockout, knock-in, and activation screens allow causal testing of candidate genes in oxidative stress pathways.
What is the role of m6A methylation in oxidative stress response?
METTL14 and YTHDF1 regulate m6A modification and translation of stress-related mRNAs like p53.
What methods measure oxidative stress response?
RNA-seq, MeRIP-seq, Ribo-seq, proteomics, ROS detection assays, and CRISPR screens are commonly used.
Is p21 involved in oxidative stress response?
Yes, p21 is differentially regulated by p53 and Rb in response to oxidative stress.
What is the role of LCN2 in oxidative stress?
LCN2 promotes acute lung inflammation and oxidative stress by enhancing macrophage iron accumulation.
Conclusion
GO:1900409 positive regulation of cellular response to oxidative stress is a critical biological process that governs cell survival under oxidative challenge. Its regulators, including METTL14, YTHDF1, p53, p21, LCN2, Pirin, Wee1, and Gtr1p, are implicated in aging, cancer, inflammation, and ischemia/reperfusion injury. Understanding these pathways offers therapeutic opportunities, and CRISPR-based models are indispensable for causal dissection. EDITGENE provides comprehensive services to accelerate research in this field.
References
- 1. Liu X et al.. 2025. Deletion of METTL14, a key methylation regulator, attenuates vascular ageing.. Eur Heart J 46(45):4953-4968 PMID: 40758401
- 2. An HS et al.. 2023. Lipocalin-2 promotes acute lung inflammation and oxidative stress by enhancing macrophage iron accumulation.. Int J Biol Sci 19(4):1163-1177 PMID: 36923935
- 3. Morotti M et al.. 2024. PGE(2) inhibits TIL expansion by disrupting IL-2 signalling and mitochondrial function.. Nature 629(8011):426-434 PMID: 38658764
- 4. Chang X et al.. 2025. YTHDF1 promotes p53 translation and induces ferroptosis during acute cerebral ischemia/reperfusion through m(6)A-dependent binding.. Cell Biol Toxicol 41(1):112 PMID: 40591025
- 5. Ma H et al.. 2026. Nuclear Pirin promotes HCC by acting as a key inflammation-facilitating factor.. Gut 75(5):1016-1029 PMID: 40579121
- 6. Datta S et al.. 2022. Absence of Wee1 alters global transcriptional response to oxidative stress in Schizosaccharomyces pombe.. FEMS Microbiol Lett 369(1) PMID: 36413467
- 7. Yin Y et al.. 1999. Differential regulation of p21 by p53 and Rb in cellular response to oxidative stress.. Mol Carcinog 24(1):15-24 PMID: 10029406
- 8. Sekiguchi T et al.. 2022. Involvement of Gtr1p in the oxidative stress response in yeast Saccharomyces cerevisiae.. Biochem Biophys Res Commun 598:107-112 PMID: 35158208
