GO:1901176 lycopene catabolic process: Degradation Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:1901176 (lycopene catabolic process) is the biological process that results in the breakdown of lycopene, a carotenoid pigment with antioxidant and signaling functions.
• Lycopene catabolism is studied mainly through its impact on lycopene bioavailability and its downstream metabolites, which can modulate oxidative stress, ferroptosis, and metabolic signaling.
• Key experimental models include tomato fruit, mammalian cell lines, and animal models where lycopene degradation products influence neuroprotection, metabolic disease, and reproductive biology.
• Enzymatic and non-enzymatic oxidation of lycopene generates cleavage products such as apo-lycopenals, which are biologically active and can be measured by LC-MS.
• Dysregulation of lycopene catabolism is linked to aging-related cognitive decline, metabolic syndrome, and infertility, making it a target for nutraceutical and pharmacological research.
• CRISPR-based knockout, knock-in, and overexpression models are essential to dissect the enzymes and regulatory pathways controlling lycopene breakdown.
Description
Lycopene is a red carotenoid pigment abundant in tomatoes and other fruits, and it is well known for its antioxidant properties and its role in human health. The biological process termed lycopene catabolic process (GO:1901176) describes the chemical reactions and pathways that result in the breakdown of lycopene into smaller metabolites. This process is critical because the degradation products of lycopene can have distinct biological activities, influencing cellular signaling, oxidative stress responses, and gene expression. Understanding lycopene catabolism is therefore important for researchers studying nutrition, aging, metabolic diseases, and reproductive biology. Recent studies have shown that lycopene and its metabolites can modulate pathways such as AMPK phosphorylation and adiponectin signaling, which are central to energy homeostasis. In addition, lycopene catabolism is implicated in neuroprotection, where breakdown products may either retain or lose the parent compound's protective effects against ferroptosis and cognitive decline. The process also affects reproductive outcomes, as lycopene enhances epigenetic reprogramming and zygotic genome activation in embryos. Thus, GO:1901176 is not merely a degradative endpoint but a regulatory node with broad physiological relevance. From a methodological standpoint, studying lycopene catabolic process requires a combination of analytical chemistry, molecular biology, and genetic models. Researchers use LC-MS to identify and quantify lycopene metabolites, while CRISPR-based gene editing enables the functional validation of candidate enzymes and regulatory proteins. This article provides a comprehensive overview of GO:1901176, including its definition, mechanisms, key genes, disease associations, and state-of-the-art research methods.
lycopene catabolic process At A Glance
| GO ID | GO:1901176 |
|---|---|
| GO term | lycopene catabolic process |
| Ontology | biological_process |
| Synonym | lycopene breakdown, lycopene catabolism, lycopene degradation |
| Major function | Breakdown of lycopene into smaller metabolites, regulating its bioavailability and generating bioactive compounds |
| Related processes | Carotenoid metabolism, oxidative stress response, lipid peroxidation |
| Key enzymes | Carotenoid cleavage oxygenases (e.g., CCOs), lipoxygenases, and peroxidases |
| Cellular location | Cytosol, plastids (in plants), and membranes |
| Research models | Tomato fruit, mammalian cell lines, mouse models, porcine embryos |
What Is GO:1901176?
GO:1901176, lycopene catabolic process, is defined as the chemical reactions and pathways resulting in the breakdown of lycopene. This biological process encompasses enzymatic and non-enzymatic steps that convert lycopene into smaller molecules, such as apo-lycopenals and other oxidation products. It is a catabolic process that reduces the pool of available lycopene and generates metabolites with potential biological activities.
Why Is lycopene catabolic process Important in Cell Biology?
Lycopene catabolic process is important because it controls the levels and biological effects of lycopene, a dietary carotenoid with documented roles in preventing chronic diseases. The breakdown products can act as signaling molecules that modulate pathways such as AMPK and PI3K/AKT, influencing cell survival, apoptosis, and metabolism. Moreover, dysregulated lycopene catabolism has been linked to aging-related cognitive impairment, metabolic disorders, and reproductive failures, making it a promising target for therapeutic interventions.
• Regulates lycopene bioavailability and the production of bioactive metabolites.
• Modulates oxidative stress and ferroptosis in neurons, affecting cognitive function.
• Influences metabolic signaling pathways such as AMPK and adiponectin.
• Plays a role in protecting against DEHP-induced toxicity in granulosa cells.
• Affects ER stress and apoptosis through PI3K/AKT modulation.
• Impacts epigenetic reprogramming and zygotic genome activation in embryos.
• Is relevant to neurological disorders, including Alzheimer's and Parkinson's diseases.
• Contributes to the pathophysiology of metabolic diseases such as obesity and diabetes.
• Provides a target for nutraceutical development and functional food design.
• Requires advanced CRISPR models to identify and validate key enzymes.
What Happens During lycopene catabolic process?
Initiation by oxidative cleavage
In simple terms: Lycopene is first attacked by enzymes or reactive oxygen species that break its long carbon chain.
The catabolism of lycopene typically begins with oxidative cleavage, often mediated by carotenoid cleavage oxygenases (CCOs) or non-enzymatic oxidation by reactive oxygen species. This step generates initial cleavage products such as apo-lycopenals, which can be further metabolized. In tomato fruit, integration of bioassay and non-target metabolite analysis revealed that lycopene and β-carotene are degraded into compounds that activate adiponectin signaling, including AMPK phosphorylation.
Generation of apo-lycopenals and other metabolites
In simple terms: The initial breakage produces smaller molecules called apo-lycopenals, which are the main breakdown products.
Oxidative cleavage of lycopene yields a series of apo-lycopenals with different chain lengths, which are biologically active. These metabolites can be further oxidized or conjugated, and they may retain some antioxidant capacity or acquire new signaling functions. For example, lycopene metabolites have been shown to inhibit ferroptosis in the hippocampus of mice, thereby ameliorating atrazine-induced spatial learning and memory impairments.
Enzymatic and non-enzymatic pathways
In simple terms: Both enzymes and spontaneous chemical reactions can degrade lycopene, depending on the cellular context.
Enzymatic cleavage by CCOs is a primary route, but non-enzymatic oxidation by radicals also contributes significantly, especially under oxidative stress. In human granulosa cells, lycopene attenuates DEHP-induced oxidative stress and mitochondrial dysfunction via SIRT1-dependent mechanisms, suggesting that catabolic products or lycopene itself modulate these pathways. The balance between enzymatic and non-enzymatic catabolism influences the profile of metabolites produced.
Regulation by cellular redox status
In simple terms: The amount of oxidative stress in the cell determines how fast lycopene is broken down.
Cellular redox status is a key regulator of lycopene catabolism. Under high oxidative stress, non-enzymatic degradation accelerates, leading to increased production of oxidation products. Conversely, antioxidant defenses can slow this process. Lycopene itself can modulate PI3K/AKT signaling and enhance antioxidant proteins, creating a feedback loop that may affect its own catabolism.
Fate and biological activity of catabolic products
In simple terms: The breakdown products can have their own effects on cells, sometimes different from lycopene itself.
The metabolites generated from lycopene catabolism, such as apo-lycopenals, can influence gene expression, cell proliferation, and apoptosis. In porcine somatic cell nuclear transfer embryos, lycopene enhances epigenetic reprogramming and zygotic genome activation, indicating that lycopene or its metabolites affect early development. These effects highlight the importance of understanding the full catabolic pathway to predict biological outcomes.
Key Genes Involved in GO:1901176 lycopene catabolic process
The following genes and proteins have been implicated in lycopene catabolic process or in mediating the effects of lycopene and its metabolites, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| CCO1 | Carotenoid cleavage oxygenase, catalyzes oxidative cleavage of lycopene | Key enzyme in lycopene catabolism; target for knockout studies |
| CCO2 | Carotenoid cleavage oxygenase, produces apo-lycopenals | Involved in generating bioactive metabolites |
| SIRT1 | NAD-dependent deacetylase, mediates lycopene protection against oxidative stress | Modulates catabolism-related stress responses |
| AMPK | Energy sensor, activated by lycopene metabolites | Links lycopene catabolism to metabolic signaling |
| PI3K | Phosphoinositide 3-kinase, involved in survival signaling | Modulated by lycopene, affecting apoptosis |
| AKT | Serine/threonine kinase, downstream of PI3K | Phosphorylated in response to lycopene, influencing cell survival |
| NFE2L2 | Transcription factor regulating antioxidant response | May be affected by lycopene catabolism |
| HMOX1 | Heme oxygenase 1, antioxidant enzyme | Upregulated by lycopene, protecting against oxidative stress |
| GPX4 | Glutathione peroxidase 4, inhibits ferroptosis | Lycopene catabolism may influence ferroptosis via GPX4 |
| ACSL4 | Acyl-CoA synthetase long-chain family member 4, promotes ferroptosis | Potential target modulated by lycopene metabolites |
| BECN1 | Beclin 1, autophagy regulator | May interact with lycopene catabolism pathways |
| BDNF | Brain-derived neurotrophic factor, supports neuronal survival | Lycopene catabolism affects cognitive function via BDNF |
| SOD1 | Superoxide dismutase 1, antioxidant enzyme | Influenced by lycopene and its metabolites |
| CAT | Catalase, antioxidant enzyme | Part of the antioxidant response to lycopene catabolism |
| IL6 | Interleukin 6, inflammatory cytokine | Modulated by lycopene in metabolic diseases |
| TNF | Tumor necrosis factor, inflammatory cytokine | Affected by lycopene catabolism in inflammation |
| PPARG | Peroxisome proliferator-activated receptor gamma, metabolic regulator | Linked to lycopene effects on adiponectin signaling |
| ZGA | Zygotic genome activation, early embryonic process | Enhanced by lycopene, relevant to reproductive biology |
How Is lycopene catabolic process Regulated?
Lycopene catabolic process is regulated at multiple levels. Cellular redox status directly influences non-enzymatic degradation, with high oxidative stress accelerating breakdown. Enzymatic cleavage by carotenoid cleavage oxygenases is subject to transcriptional and post-translational regulation, although specific regulators are not fully defined. Signaling pathways such as AMPK and PI3K/AKT can modulate the expression or activity of enzymes involved in lycopene metabolism, creating feedback loops. Additionally, SIRT1-dependent mechanisms have been shown to mediate lycopene's protective effects against oxidative stress, indirectly affecting catabolism. In reproductive contexts, lycopene enhances epigenetic reprogramming, suggesting that catabolic products may influence zygotic genome activation.
lycopene catabolic process and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| GPX4 | Ferroptosis in neurodegeneration | GPX4 knockout mice treated with lycopene |
| SIRT1 | Oxidative stress in granulosa cells | SIRT1 knockdown human granulosa cells |
| AMPK | Metabolic syndrome | AMPK knockout mouse models |
| PIK3CA | Apoptosis and ER stress | PIK3CA mutant cell lines |
| ZGA | Embryonic development | Porcine SCNT embryos with lycopene supplementation |
Neurodegeneration and cognitive impairment
Lycopene catabolism is linked to neuroprotection. In a mouse model, lycopene ameliorated atrazine-induced spatial learning and memory impairments by inhibiting ferroptosis in the hippocampus, a process that may involve lycopene metabolites. Additionally, lycopene has been investigated as a pleiotropic neuroprotective nutraceutical for broad spectrum neurological disorders, with catabolic products potentially contributing to its effects. Aging-related cognitive impairment was also ameliorated by lycopene delivery via ferritin nanoparticles, highlighting the therapeutic potential of modulating lycopene levels and catabolism.
Metabolic diseases
The relationship between lycopene and metabolic diseases is well documented. Lycopene and its metabolites activate the adiponectin signaling pathway, including AMPK phosphorylation, which is crucial for glucose and lipid metabolism. Dysregulation of lycopene catabolism may therefore contribute to obesity, insulin resistance, and metabolic syndrome. In human granulosa cells, lycopene attenuates DEHP-induced oxidative stress and mitochondrial dysfunction via SIRT1-dependent mechanisms, suggesting a role in reproductive metabolic health.
Reproductive and developmental disorders
Lycopene catabolism impacts early embryonic development. In porcine somatic cell nuclear transfer embryos, lycopene enhances epigenetic reprogramming and zygotic genome activation, processes essential for successful development. This suggests that lycopene or its metabolites could improve outcomes in assisted reproductive technologies. Furthermore, lycopene protects granulosa cells from DEHP-induced apoptosis, indicating a role in ovarian function.
From lycopene catabolic process-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does CCO1 knockout affect lycopene catabolism? | CCO1 knockout cell line (e.g., HepG2) |
| Does a point mutation in SIRT1 alter lycopene protection? | SIRT1 point-mutation knock-in cells |
| Can lycopene metabolite production be tracked? | Knock-in of tagged CCO2 for imaging |
| Does overexpression of AMPK enhance lycopene effects? | AMPK overexpression cell line |
| Does lycopene catabolism influence ferroptosis? | GPX4 knockout mice with lycopene treatment |
| Does lycopene affect zygotic genome activation? | Porcine SCNT embryos with lycopene |
How to Study the lycopene catabolic process Process
| Method | What It Measures | Typical Application |
|---|---|---|
| LC-MS | Lycopene and metabolite levels | Quantifying catabolic products in cells/tissues |
| CRISPR knockout | Gene function | Identifying enzymes in lycopene catabolism |
| RNA-seq | Transcriptional changes | Global response to lycopene modulation |
| Western blot | Protein expression and phosphorylation | Assessing AMPK, AKT, SIRT1 activity |
| Fluorescence microscopy | Localization and uptake | Tracking lycopene in cells |
| Ferroptosis assays | Lipid peroxidation and cell death | Evaluating neuroprotection |
| Embryo culture | Zygotic genome activation | Reproductive studies |
| ELISA | Cytokine and hormone levels | Inflammation and metabolic studies |
LC-MS for metabolite profiling
Liquid chromatography-mass spectrometry (LC-MS) is the gold standard for identifying and quantifying lycopene and its catabolic products, such as apo-lycopenals. This method allows researchers to track the breakdown of lycopene in cells and tissues, providing insights into the pathway's dynamics. Non-target metabolite analysis combined with bioassays has been used to link specific metabolites to biological activities like AMPK activation.
CRISPR-Cas9 gene editing
CRISPR-Cas9 is used to generate knockout, knock-in, and point-mutation models to study genes involved in lycopene catabolism. For example, knocking out candidate carotenoid cleavage oxygenases can reveal their role in lycopene degradation. Overexpression of protective genes like SIRT1 can test their impact on lycopene-mediated effects.
Transcriptomics and proteomics
RNA-seq and proteomics can identify global changes in gene and protein expression upon modulation of lycopene catabolism. These approaches help uncover regulatory networks and downstream effectors. For instance, lycopene treatment has been shown to modulate PI3K/AKT signaling and antioxidant proteins, which can be detected by phosphoproteomics.
Imaging and cell-based assays
Fluorescence microscopy and live-cell imaging can visualize lycopene uptake and metabolism using tagged proteins or fluorescently labeled lycopene. Cell viability, apoptosis, and oxidative stress assays are used to assess the functional consequences of lycopene catabolism.
How CRISPR Can Be Used to Study GO:1901176 lycopene catabolic process
Knockout
CRISPR knockout of candidate genes such as CCO1 or CCO2 can abolish or reduce lycopene catabolism, leading to accumulation of lycopene and altered metabolite profiles. This approach is used to validate the enzymatic steps in the pathway and to study the physiological consequences of blocked catabolism, such as changes in oxidative stress or signaling.
Point Mutation
Point mutations can be introduced into genes like SIRT1 or AMPK to mimic disease-associated variants or to disrupt specific catalytic residues. These models help dissect the precise molecular mechanisms by which lycopene catabolism influences cellular pathways, such as phosphorylation-dependent signaling.
Knock-in
Knock-in of tagged versions of enzymes (e.g., GFP-CCO1) allows real-time tracking of protein localization and interaction with lycopene. Additionally, knock-in of reporter genes under the control of catabolism-related promoters can monitor pathway activity in live cells.
Overexpression
Overexpression of genes such as SIRT1, AMPK, or antioxidant enzymes can enhance lycopene's protective effects or alter catabolic flux. This strategy is useful for testing whether increasing a specific gene's activity can compensate for defects in lycopene catabolism or boost its beneficial metabolites.
How EDITGENE Supports lycopene catabolic process Research
Researchers studying lycopene catabolic process-related genes often need to determine whether a candidate gene is causally involved in the pathway or merely correlated with changes in lycopene levels. CRISPR-based models provide the gold standard for establishing causality, and EDITGENE offers a comprehensive suite of services to accelerate this research.
Contact EDITGENE today to design your custom CRISPR model for lycopene catabolic process research.
Frequently Asked Questions About lycopene catabolic process
What is lycopene catabolic process?
Lycopene catabolic process (GO:1901176) is the set of chemical reactions and pathways that break down lycopene into smaller metabolites, such as apo-lycopenals.
What genes are involved in lycopene catabolic process?
Key genes include carotenoid cleavage oxygenases (CCOs), SIRT1, AMPK, PI3K, AKT, and antioxidant enzymes like GPX4 and HMOX1.
How is lycopene catabolism regulated?
It is regulated by cellular redox status, enzymatic activity of CCOs, and signaling pathways such as AMPK and PI3K/AKT.
What diseases are associated with lycopene catabolism?
Dysregulation is linked to neurodegeneration, metabolic diseases, and reproductive disorders.
What methods are used to study lycopene catabolic process?
LC-MS, CRISPR gene editing, RNA-seq, proteomics, and cell-based assays are commonly used.
Can CRISPR be used to study lycopene catabolism?
Yes, CRISPR knockout, knock-in, and overexpression models are powerful tools to dissect the pathway and validate gene function.
What are apo-lycopenals?
Apo-lycopenals are oxidative cleavage products of lycopene that can have biological activities, such as activating AMPK signaling.
Does lycopene catabolism affect brain health?
Yes, lycopene and its metabolites can inhibit ferroptosis in the hippocampus, potentially protecting against cognitive impairment.
How does lycopene catabolism influence metabolism?
Lycopene metabolites activate adiponectin signaling and AMPK, which regulate glucose and lipid metabolism.
What is the role of SIRT1 in lycopene catabolism?
SIRT1 mediates lycopene's protective effects against oxidative stress and mitochondrial dysfunction, indirectly influencing catabolism.
Conclusion
GO:1901176, lycopene catabolic process, is a biologically significant pathway that controls the fate of lycopene and generates bioactive metabolites. Its dysregulation is implicated in neurodegeneration, metabolic diseases, and reproductive disorders, making it a target for therapeutic intervention. Advances in CRISPR gene editing and analytical chemistry are enabling researchers to dissect the enzymes and regulatory mechanisms involved. Future studies will likely uncover new roles for lycopene catabolism in health and disease, paving the way for novel nutraceutical and pharmacological strategies.
References
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- 2. Mohri S et al.. 2022. Integration of bioassay and non-target metabolite analysis of tomato reveals that β-carotene and lycopene activate the adiponectin signaling pathway, including AMPK phosphorylation.. PLoS One 17(7):e0267248 PMID: 35776737
- 3. Ma H et al.. 2026. Rational Protein Molecular Design of Hydrophobic Interior-Modified Ferritin Enables Efficient Lycopene Delivery for Ameliorating Aging-Related Cognitive Impairment.. J Agric Food Chem 74(16):12987-13003 PMID: 42009517
- 4. Ma J et al.. 2026. Lycopene attenuates DEHP-induced oxidative stress, mitochondrial dysfunction, and apoptosis in human granulosa cells via SIRT1-dependent mechanisms.. BMC Pharmacol Toxicol 27(1) PMID: 41964044
- 5. Zheng L et al.. 2025. Lycopene inhibits ER stress and apoptosis while modulating PI3K/AKT and enhancing antioxidant and anti-apoptotic proteins.. PLoS One 20(12):e0339565 PMID: 41433302
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- 8. Yun JH et al.. 2025. Lycopene enhances epigenetic reprogramming and zygotic genome activation in the porcine somatic cell nuclear transfer embryo.. Sci Rep 15(1):32953 PMID: 41006358
