GO:0072715 cellular response to selenite ion: Stress Signaling, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0072715 cellular response to selenite ion describes any process that changes a cell's state or activity in response to a selenite ion stimulus.
• Selenite uptake and intracellular handling involve membrane transport and redox chemistry that differ among cell types.
• Selenite exposure triggers oxidative stress responses, glutathione-dependent defense, and metabolic network rewiring in mammalian cells.
• Fungal and plant models show that selenite toxicity is modulated by vacuolar acidification, sulfur demand, and glutathione availability.
• Selenite also has antibacterial, osteoinductive, and anticancer properties, making it relevant to biomaterials and cancer research.
• CRISPR knockout, knock-in, overexpression, and library screening enable causal testing of genes in the cellular response to selenite ion.
Description
GO:0072715 cellular response to selenite ion is a Gene Ontology biological process term that captures how a cell changes its state or activity after exposure to selenite ion. Selenite is a selenium oxyanion that can enter cells through membrane transport systems and participate in redox reactions, making it both a nutrient source and a stressor depending on dose and context. Because selenium is essential for selenoprotein synthesis but toxic in excess, the cellular response to selenite ion sits at the interface of nutrient sensing, redox homeostasis, and stress adaptation. Researchers study this term to understand how cells detoxify or exploit selenite, how selenite affects metabolism, and how selenite-based interventions can be designed for antimicrobial, osteoinductive, or anticancer applications. The response is not a single pathway but a coordinated set of transport, redox, transcriptional, and metabolic events that vary across species and cell types. This article integrates the QuickGO definition with verified PubMed literature to provide a research-grade overview of GO:0072715, its mechanisms, key genes, disease links, and experimental methods.
cellular response to selenite ion At A Glance
| GO ID | GO:0072715 |
|---|---|
| GO term | cellular response to selenite ion |
| Ontology | biological_process |
| Synonym | none |
| Major function | Cellular sensing and response to selenite ion, including transport, redox handling, gene expression changes, and metabolic adaptation |
| Definition source | QuickGO definition: Any process that results in a change in state or activity of a cell as a result of a selenite ion stimulus |
| Related stimuli | Selenite ion, selenium oxyanions, oxidative stress |
| Taxonomic scope | Broad; documented in mammals, fungi, plants, and bacteria |
| Research relevance | Cancer, oxidative stress, selenium metabolism, antimicrobial biomaterials, and environmental toxicology |
What Is GO:0072715?
In our own words, GO:0072715 cellular response to selenite ion refers to any cellular process that is triggered by or alters the cell's state, activity, movement, secretion, enzyme production, or gene expression as a result of a selenite ion stimulus. It is a biological process term, meaning it describes a series of molecular events rather than a single molecule or location. The response can include uptake of selenite, redox reactions, changes in gene expression, metabolic remodeling, and adaptive or toxic outcomes depending on the cell type and selenite concentration.
Why Is cellular response to selenite ion Important in Cell Biology?
GO:0072715 cellular response to selenite ion is important because selenite is a double-edged molecule: it is a source of selenium for selenoprotein synthesis but also a pro-oxidant that can damage cells. Understanding this response helps researchers define safe doses for selenium supplementation, design selenite-based anticancer or antibacterial strategies, and interpret selenium-related toxicity in environmental and clinical settings. Because selenite intersects with glutathione metabolism, redox signaling, and metabolic networks, it is a useful probe for studying cellular stress adaptation.
• Selenite is a redox-active selenium species that can induce oxidative stress and alter glutathione homeostasis.
• The cellular response to selenite ion determines whether cells adapt, survive, or die under selenium exposure.
• Selenite has documented antibacterial, osteoinductive, and anticancer properties relevant to biomaterials and oncology.
• Selenite uptake and transport mechanisms differ across cell types, affecting sensitivity and response.
• Fungal models show that vacuolar acidification and pH control are critical for selenite tolerance.
• Plant selenium-binding proteins link selenite response to sulfur demand and glutathione-dependent stress tolerance.
• Selenite alters metabolic networks in mammalian cells, revealing links to central carbon and redox metabolism.
• Environmental selenite exposure affects microbial growth and toxin production, with ecological implications.
• Selenite response pathways are conserved enough to study in yeast, plants, and mammalian cells.
• CRISPR-based models enable causal dissection of genes in the selenite response for therapeutic and biotech applications.
What Happens During cellular response to selenite ion?
Selenite uptake and membrane transport
In simple terms: First, selenite must get into the cell through transport proteins in the membrane.
The cellular response to selenite ion begins with transport across the plasma membrane. In rainbow trout hepatocytes and enterocytes, selenium transport across the plasma membrane has been characterized, showing that selenite uptake is a regulated process rather than simple diffusion. This transport step determines intracellular selenite availability and is a key control point for downstream responses. In mammalian cells, selenite exposure leads to rapid changes in intracellular redox state, indicating efficient uptake and reactivity.
Redox chemistry and oxidative stress
In simple terms: Once inside, selenite can react with antioxidants and generate oxidative stress.
Selenite is redox-active and can react with thiols such as glutathione, producing reactive oxygen species and altering the cellular redox balance. In HepG2/C3A cells supplemented with sodium selenite, the response to hydrogen peroxide-induced oxidative stress is modulated, showing crosstalk between selenite and oxidative stress pathways. Ultrahigh-resolution metabolomics in mammalian cells has revealed that selenite and arsenite action reshapes metabolic networks, consistent with redox-driven metabolic remodeling.
Glutathione-dependent defense and sulfur demand
In simple terms: Cells use glutathione and sulfur metabolism to defend against selenite stress.
Glutathione is a major thiol antioxidant that buffers selenite toxicity. In Arabidopsis, the putative selenium-binding protein1 (SBP1) is tightly linked to cellular sulfur demand and can reduce sensitivity to stresses that require glutathione for tolerance. This indicates that the cellular response to selenite ion is integrated with sulfur assimilation and glutathione biosynthesis. In mammalian cells, selenite supplementation alters glutathione-related redox status, further supporting this link.
Vacuolar and organellar detoxification in fungi
In simple terms: In yeast, vacuoles help store and detoxify selenite.
In Saccharomyces cerevisiae, the PacC-family protein Rim101 prevents selenite toxicity by controlling vacuolar acidification. This demonstrates that organellar pH regulation and vacuolar function are part of the cellular response to selenite ion in fungi. The white-rot fungus Phanerochaete chrysosporium also responds to selenium oxyanions, with effects on growth and physiology, indicating conserved themes in fungal selenite handling.
Metabolic remodeling and gene expression changes
In simple terms: The cell changes its metabolism and gene activity to cope with selenite.
Selenite exposure leads to changes in metabolic networks, as shown by ultrahigh-resolution MS1/MS2-based reconstruction in mammalian cells. These changes include shifts in central carbon metabolism and redox-related pathways. In Microcystis aeruginosa, selenite affects growth and microcystin production under hypersalinity and copper sulfate stresses, showing that selenite response interacts with other environmental stressors. Together, these findings indicate that the cellular response to selenite ion involves coordinated transcriptional and metabolic adaptation.
Outcomes: adaptation, toxicity, or therapeutic effect
In simple terms: Depending on dose and cell type, selenite can protect, kill, or reprogram cells.
The cellular response to selenite ion can lead to adaptation, toxicity, or therapeutic effects. Selenite-incorporated hydroxyapatite exhibits combined antibacterial, osteoinductive, and anticancer properties, showing that selenite can be engineered for beneficial outcomes. In contrast, excessive selenite can cause oxidative damage and cell death. The balance between protective and toxic outcomes depends on transport, glutathione status, and metabolic capacity.
Key Genes Involved in GO:0072715 cellular response to selenite ion
The following genes and proteins have been experimentally linked to the cellular response to selenite ion or to selenium/selenite handling in the cited literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| SBP1 (Arabidopsis) | Putative selenium-binding protein linked to sulfur demand and glutathione-dependent stress tolerance | Plant model for selenite response and sulfur metabolism |
| RIM101 (Saccharomyces cerevisiae) | PacC-family transcription factor controlling vacuolar acidification and selenite tolerance | Fungal model for vacuolar detoxification of selenite |
| Glutathione biosynthesis genes (e.g., GSH1/GSH2 in yeast, GCL in mammals) | Produce glutathione, a major thiol antioxidant buffering selenite toxicity | Redox defense and selenite tolerance |
| Selenoprotein synthesis machinery (e.g., SEPSECS, EEFSEC) | Incorporates selenium into selenoproteins | Links selenite response to selenoprotein biology |
| Membrane transporters (e.g., SLC family members) | Mediate selenite uptake across the plasma membrane | Transport studies in hepatocytes and enterocytes |
| Metabolic enzymes in central carbon metabolism | Remodel metabolic networks in response to selenite | Metabolomics of selenite action |
| Microcystin biosynthesis genes (mcy cluster in Microcystis) | Produce microcystin, affected by selenite under stress | Environmental selenite response |
| Oxidative stress response genes (e.g., catalase, superoxide dismutase) | Detoxify reactive oxygen species generated by selenite | Crosstalk with H2O2-induced oxidative stress |
| Sulfur assimilation genes (e.g., sulfate transporters in plants) | Provide sulfur for glutathione and selenite detoxification | Plant sulfur-selenium interaction |
| Vacuolar ATPase genes (e.g., VMA in yeast) | Acidify vacuoles for selenite sequestration | Vacuolar detoxification |
| Phanerochaete chrysosporium selenium response genes | Handle selenium oxyanions in white-rot fungi | Fungal environmental response |
| Hydroxyapatite-associated osteogenic genes | Mediate osteoinductive effects of selenite-incorporated materials | Biomaterial applications |
| Apoptosis-related genes (e.g., caspases) | Execute cell death under high selenite exposure | Anticancer mechanisms of selenite |
| Antioxidant response element (ARE) target genes | Coordinate transcriptional antioxidant defense | Selenite-induced oxidative stress response |
| Copper/zinc homeostasis genes | Interact with selenite under metal stress | Combined stress studies in Microcystis |
| Hypersalinity response genes | Modulate selenite toxicity under high salt | Environmental stress interaction |
How Is cellular response to selenite ion Regulated?
The cellular response to selenite ion is regulated at multiple levels. Transport across the plasma membrane controls intracellular selenite levels and is a primary determinant of sensitivity. Redox regulation through glutathione and sulfur metabolism modulates selenite toxicity, as shown by the link between SBP1 expression and cellular sulfur demand in Arabidopsis. In yeast, the Rim101 transcription factor regulates vacuolar acidification, which is required to prevent selenite toxicity. Metabolic network remodeling in mammalian cells further indicates that selenite response is integrated with central carbon and redox metabolism. Environmental factors such as hypersalinity and copper sulfate also modulate selenite effects in Microcystis aeruginosa.
cellular response to selenite ion and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| SBP1 | Selenium/sulfur metabolism and stress tolerance | Arabidopsis knockout and overexpression |
| RIM101 | Fungal selenite tolerance and vacuolar function | S. cerevisiae knockout and point mutation |
| Glutathione biosynthesis genes | Oxidative stress and redox imbalance | Mammalian cell knockout and overexpression |
| Selenoprotein synthesis genes | Selenoprotein deficiency and metabolic stress | Knockout and knock-in in mammalian cells |
| Microcystin biosynthesis genes | Cyanobacterial toxin production under selenite stress | Microcystis gene knockout and environmental stress |
Cancer and selenite-based anticancer strategies
Selenite has documented anticancer properties, and selenite-incorporated hydroxyapatite shows combined antibacterial, osteoinductive, and anticancer effects. The cellular response to selenite ion can induce oxidative stress and apoptosis in cancer cells, making it a candidate for therapeutic intervention. Understanding how cancer cells handle selenite may reveal vulnerabilities related to redox metabolism.
Oxidative stress and metabolic disorders
Selenite modulates the response of HepG2/C3A cells to hydrogen peroxide-induced oxidative stress, indicating that selenite exposure can alter cellular redox defense. Because selenite reshapes metabolic networks, it may influence metabolic disorders and redox-related pathologies. Glutathione-dependent defense pathways are central to these effects.
Fungal infections and microbial tolerance
In Saccharomyces cerevisiae, Rim101 prevents selenite toxicity by controlling vacuolar acidification, suggesting that fungal pathogens may use similar mechanisms to tolerate selenite. Selenite-incorporated materials have antibacterial properties, linking selenite response to infection control. Fungal and bacterial selenite handling is therefore relevant to antimicrobial strategies.
Environmental and ecological health
Selenite affects Microcystis aeruginosa growth and microcystin production under hypersalinity and copper sulfate stresses, with implications for water quality and cyanobacterial blooms. Selenium oxyanions also affect white-rot fungi, indicating broader ecological impacts. These findings connect the cellular response to selenite ion with environmental health and toxicology.
From cellular response to selenite ion-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does a candidate transporter mediate selenite uptake? | Knockout of SLC transporter in mammalian cells |
| Does Rim101 regulate vacuolar acidification for selenite tolerance? | Point mutation of RIM101 in S. cerevisiae |
| Does SBP1 modulate glutathione-dependent selenite tolerance? | Overexpression and knockout in Arabidopsis |
| How does selenite alter metabolic networks? | Knockout of metabolic enzymes plus metabolomics |
| Does selenite-incorporated material affect osteogenesis? | Overexpression of osteogenic genes in cell models |
| How does selenite interact with copper stress? | Knockout of copper homeostasis genes in Microcystis |
How to Study the cellular response to selenite ion Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Ultrahigh-resolution MS1/MS2 metabolomics | Metabolic network changes | Selenite-induced metabolic remodeling |
| Glutathione and ROS assays | Redox status and oxidative stress | Selenite and H2O2 crosstalk |
| Selenite uptake kinetics | Membrane transport rate | Hepatocyte and enterocyte transport |
| Fungal growth and viability assays | Selenite toxicity and tolerance | Yeast Rim101 studies |
| Cyanobacterial growth and toxin assays | Microcystin production under stress | Microcystis selenite response |
| Plant stress tolerance assays | Glutathione-dependent stress response | Arabidopsis SBP1 function |
| Biomaterial cell culture assays | Osteoinductive and anticancer effects | Selenite-incorporated hydroxyapatite |
| Gene expression analysis (RNA-seq/qPCR) | Transcriptional response to selenite | Selenite-responsive gene discovery |
Metabolomics and metabolic network reconstruction
Ultrahigh-resolution MS1/MS2-based metabolomics has been used to reconstruct metabolic networks and reveal changes induced by selenite and arsenite in mammalian cells. This approach identifies metabolites and pathways affected by selenite exposure, providing a systems-level view of the cellular response. It is particularly useful for detecting redox-related and central carbon metabolic shifts.
Oxidative stress and redox assays
Measuring glutathione levels, reactive oxygen species, and oxidative stress markers is essential for studying the cellular response to selenite ion. In HepG2/C3A cells, selenite supplementation modulates hydrogen peroxide-induced oxidative stress, which can be assessed with standard redox assays. Plant studies link SBP1 expression to glutathione-dependent stress tolerance, supporting redox-focused methods.
Transport and uptake studies
Selenite transport across the plasma membrane can be studied using primary hepatocytes and enterocytes, as demonstrated in rainbow trout. These methods quantify uptake kinetics and identify transport pathways. They are critical for understanding how selenite enters cells and how transport affects downstream responses.
Microbial and fungal growth and toxicity assays
Fungal and cyanobacterial models allow assessment of selenite toxicity through growth, viability, and toxin production assays. In S. cerevisiae, vacuolar acidification mutants reveal selenite sensitivity. In Microcystis aeruginosa, selenite effects on growth and microcystin production are measured under environmental stress.
How CRISPR Can Be Used to Study GO:0072715 cellular response to selenite ion
Knockout
CRISPR knockout can delete candidate genes involved in selenite transport, glutathione metabolism, or vacuolar function to test their causal role in the cellular response to selenite ion. For example, knocking out RIM101 in S. cerevisiae or SBP1 in Arabidopsis would test selenite sensitivity. In mammalian cells, knockout of transporters or metabolic enzymes can reveal their contribution to selenite uptake and toxicity.
Point Mutation
Point mutations can be introduced to dissect specific residues required for selenite response, such as catalytic cysteines in redox enzymes or regulatory phosphorylation sites in transcription factors. This approach is useful when complete knockout is lethal or when domain-specific functions need to be separated.
Knock-in
Knock-in of tagged or reporter alleles allows tracking of selenite-responsive proteins in live cells and tissues. For example, knocking in a fluorescent tag on SBP1 or a metabolic enzyme can reveal localization changes upon selenite exposure. Knock-in of disease-relevant variants can also model altered selenite sensitivity.
Overexpression
Overexpression of candidate genes such as SBP1 or glutathione biosynthesis enzymes can test whether increased levels protect against selenite toxicity. In mammalian cells, overexpression of antioxidant enzymes may buffer selenite-induced oxidative stress. Overexpression models are also useful for producing selenite-resistant cell lines for biotechnological applications.
How EDITGENE Supports cellular response to selenite ion Research
Researchers studying cellular response to selenite ion-related genes often need to determine whether a candidate gene is causally involved in selenite uptake, redox defense, or metabolic adaptation. EDITGENE provides CRISPR-based cell model services that enable precise knockout, point mutation, knock-in, and overexpression of target genes, as well as library screening and bioinformatics support. These tools help convert correlative findings from metabolomics and transcriptomics into mechanistic insights.
Contact EDITGENE today to design your custom CRISPR model for cellular response to selenite ion research.
Frequently Asked Questions About cellular response to selenite ion
What is GO:0072715 cellular response to selenite ion?
GO:0072715 is a Gene Ontology biological process term describing any cellular change in state or activity resulting from a selenite ion stimulus, including transport, redox reactions, gene expression, and metabolic adaptation.
What genes are involved in cellular response to selenite ion?
Genes include SBP1 in plants, RIM101 in yeast, glutathione biosynthesis genes, selenoprotein synthesis machinery, membrane transporters, and metabolic enzymes.
How does selenite enter cells?
Selenite uptake occurs through plasma membrane transport proteins, as characterized in rainbow trout hepatocytes and enterocytes.
What is the role of glutathione in selenite response?
Glutathione buffers selenite toxicity and is linked to sulfur demand and stress tolerance in plants and mammalian cells.
Does selenite cause oxidative stress?
Yes, selenite is redox-active and can induce oxidative stress, as shown in HepG2/C3A cells and metabolic studies.
How do fungi respond to selenite?
In Saccharomyces cerevisiae, Rim101 controls vacuolar acidification to prevent selenite toxicity, and white-rot fungi also respond to selenium oxyanions.
Can selenite be used in cancer therapy?
Selenite-incorporated hydroxyapatite shows anticancer properties, and selenite can induce oxidative stress and apoptosis in cancer cells.
What methods study cellular response to selenite ion?
Methods include metabolomics, glutathione and ROS assays, transport kinetics, fungal growth assays, and gene expression analysis.
How does selenite affect Microcystis aeruginosa?
Selenite affects growth and microcystin production under hypersalinity and copper sulfate stresses.
How can CRISPR help study selenite response?
CRISPR knockout, point mutation, knock-in, and overexpression models enable causal testing of genes involved in selenite transport, redox defense, and metabolic adaptation.
Conclusion
GO:0072715 cellular response to selenite ion encompasses a complex set of transport, redox, metabolic, and transcriptional events that determine how cells handle selenite. From glutathione-dependent defense in plants to vacuolar detoxification in yeast and metabolic remodeling in mammalian cells, the response is conserved in principle but diverse in detail. Understanding this process has implications for cancer therapy, antimicrobial biomaterials, and environmental health. CRISPR-based cell models and multi-omics methods provide powerful tools to dissect the genes and pathways underlying this response.
References
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- 2. Zanetti TA et al.. 2018. Response of HepG2/C3A cells supplemented with sodium selenite to hydrogen peroxide-induced oxidative stress.. J Trace Elem Med Biol 50:209-215 PMID: 30262281
- 3. Espinosa-Ortiz EJ et al.. 2015. Effects of selenium oxyanions on the white-rot fungus Phanerochaete chrysosporium.. Appl Microbiol Biotechnol 99(5):2405-18 PMID: 25341399
- 4. Misra S et al.. 2012. Transport of selenium across the plasma membrane of primary hepatocytes and enterocytes of rainbow trout.. J Exp Biol 215(Pt 9):1491-501 PMID: 22496285
- 5. Hugouvieux V et al.. 2009. Arabidopsis putative selenium-binding protein1 expression is tightly linked to cellular sulfur demand and can reduce sensitivity to stresses requiring glutathione for tolerance.. Plant Physiol 151(2):768-81 PMID: 19710230
- 6. Pérez-Sampietro M et al.. 2014. The PacC-family protein Rim101 prevents selenite toxicity in Saccharomyces cerevisiae by controlling vacuolar acidification.. Fungal Genet Biol 71:76-85 PMID: 25239548
- 7. Fan TW et al.. 2022. Ultrahigh resolution MS(1)/MS(2)-based reconstruction of metabolic networks in mammalian cells reveals changes for selenite and arsenite action.. J Biol Chem 298(12):102586 PMID: 36223837
- 8. Zhou C et al.. 2017. Effects of selenite on Microcystis aeruginosa: Growth, microcystin production and its relationship to toxicity under hypersalinity and copper sulfate stresses.. Environ Pollut 223:535-544 PMID: 28129951
