GO:0008610 lipid biosynthetic process: Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0008610 lipid biosynthetic process describes the chemical reactions and pathways that form lipids, compounds soluble in organic solvents but not or sparingly in water.
• De novo lipogenesis is a tightly regulated anabolic program that converts carbon sources such as glucose, amino acids, and acetate into fatty acids, triglycerides, and other lipid species.
• Key enzymes include ACLY, ACC1, FASN, SCD1, and GPAT, which together build fatty acids and channel them into complex lipids.
• Lipid biosynthetic flux supports membrane biogenesis, energy storage, and signaling, and its dysregulation contributes to cancer, metabolic disease, and neurological disorders.
• Hepatic lipogenesis is fueled not only by glucose but also by amino acids such as glutamine and serine, which supply carbon and reducing equivalents.
• CRISPR knockout, point-mutation, knock-in, and overexpression models enable causal dissection of lipogenic genes in health and disease.
Description
Lipids are essential biomolecules that form cellular membranes, store energy, and act as signaling molecules. The Gene Ontology term GO:0008610 lipid biosynthetic process encompasses all chemical reactions and pathways that result in the formation of lipids, defined as compounds soluble in organic solvents but not, or sparingly, in aqueous solvents. This process, often called lipogenesis, is central to normal physiology and is frequently reprogrammed in disease. Understanding lipid biosynthetic process is therefore critical for researchers in metabolism, cancer biology, neuroscience, and beyond. The pathway integrates carbon from glucose, amino acids, and other substrates to generate fatty acids, triglycerides, phospholipids, and sterols. Its regulation occurs at multiple levels, including transcription, allosteric control, and post-translational modification, ensuring that lipid production matches cellular demand. Because dysregulated lipogenesis is a hallmark of many cancers and metabolic disorders, the enzymes and regulators of this process are active targets for therapeutic development and for functional genomics studies.
lipid biosynthetic process At A Glance
| GO ID | GO:0008610 |
|---|---|
| GO term | lipid biosynthetic process |
| Ontology | biological_process |
| Synonym | lipid anabolism; lipid biosynthesis; lipid formation; lipid synthesis; lipogenesis |
| Major function | Anabolic generation of lipids including fatty acids, triglycerides, phospholipids, and sterols |
| Key substrates | Acetyl-CoA, malonyl-CoA, glycerol-3-phosphate, amino acids (e.g., glutamine, serine), acetate |
| Major enzymes | ACLY, ACC1, FASN, SCD1, GPAT, DGAT, and associated desaturases/elongases |
| Cellular locations | Cytosol, endoplasmic reticulum, mitochondria, and lipid droplets |
| Regulatory inputs | Insulin, mTORC1, SREBP-1c, ChREBP, AMPK, and nutrient availability |
What Is GO:0008610?
GO:0008610 lipid biosynthetic process is defined by the Gene Ontology as the chemical reactions and pathways resulting in the formation of lipids, which are compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. In practical terms, it covers the anabolic routes that build fatty acids, triglycerides, phospholipids, sphingolipids, and sterols from simpler precursors such as acetyl-CoA, malonyl-CoA, glycerol, and amino acids. The term is synonymous with lipid anabolism, lipid biosynthesis, lipid formation, lipid synthesis, and lipogenesis.
Why Is lipid biosynthetic process Important in Cell Biology?
Lipid biosynthetic process is fundamental to cell growth, membrane homeostasis, and energy storage, and its dysregulation is a common feature of cancer, obesity, type 2 diabetes, non-alcoholic fatty liver disease, and neurodegeneration. Because lipogenic enzymes are often overexpressed in tumors and support rapid proliferation, they represent attractive targets for therapeutic intervention and biomarkers. Moreover, the pathway intersects with amino acid metabolism, redox balance, and signaling networks, making it a nexus for understanding metabolic flexibility in health and disease.
• Supports membrane biogenesis and cell proliferation in normal and cancer cells.
• Provides energy storage as triglycerides in adipose tissue and liver.
• Contributes to signaling lipids that regulate inflammation and immunity.
• Is reprogrammed in colorectal cancer to enhance growth via FASN-mediated lipogenesis.
• Hepatic lipogenesis is fueled by amino acids such as glutamine and serine, linking protein and lipid metabolism.
• Periodontitis-associated pathogens can promote hepatic lipogenesis and exacerbate atherosclerosis.
• Lipogenesis in the brain supports blood-brain barrier recovery after ischemic stroke.
• MIGA2 links mitochondria, ER, and lipid droplets to promote de novo lipogenesis in adipocytes.
• Enzymes of lipogenesis are potential drug targets for metabolic and neoplastic diseases.
• CRISPR screens can identify novel regulators of lipid biosynthetic process.
What Happens During lipid biosynthetic process?
Carbon precursor supply and acetyl-CoA generation
In simple terms: The cell first gathers raw materials like glucose and amino acids and converts them into acetyl-CoA, the building block for fatty acids.
Lipid biosynthesis begins with the provision of acetyl-CoA, which can be derived from glucose via glycolysis and pyruvate dehydrogenase, or from amino acids such as glutamine and serine. In hepatocytes, amino acids are a major carbon source for lipogenesis, contributing to acetyl-CoA pools. Serine catabolism generates NADPH, which is required for reductive steps in fatty acid synthesis. Acetyl-CoA is then carboxylated to malonyl-CoA by acetyl-CoA carboxylase (ACC), the committed step of fatty acid synthesis.
De novo fatty acid synthesis
In simple terms: A large enzyme complex stitches acetyl-CoA units together to make long-chain fatty acids.
Fatty acid synthase (FASN) catalyzes the iterative condensation of acetyl-CoA and malonyl-CoA to produce palmitate, using NADPH as a reducing agent. This step is highly regulated and is often upregulated in cancer; for example, FBXW7β loss enhances FASN-mediated lipogenesis and promotes colorectal cancer growth. The newly synthesized fatty acids can be further desaturated by stearoyl-CoA desaturase (SCD1) and elongated to generate diverse fatty acid species.
Triglyceride and phospholipid assembly
In simple terms: Fatty acids are attached to a glycerol backbone to form storage fats and membrane lipids.
Glycerol-3-phosphate acyltransferases (GPATs) and diacylglycerol acyltransferases (DGATs) sequentially acylate glycerol-3-phosphate to form phosphatidic acid, diacylglycerol, and triacylglycerol. These reactions occur primarily in the endoplasmic reticulum and are essential for storing energy and building membranes. In adipocytes, MIGA2 links mitochondria, the ER, and lipid droplets to promote de novo lipogenesis and lipid droplet expansion.
Lipid droplet formation and storage
In simple terms: Newly made fats are packaged into lipid droplets to be stored or used later.
Lipid droplets are dynamic organelles that store neutral lipids and are central to lipogenesis. MIGA2 promotes de novo lipogenesis in adipocytes by tethering mitochondria and ER to lipid droplets, facilitating efficient lipid storage. The balance between lipid synthesis and breakdown determines lipid droplet size and number, and dysregulation contributes to steatosis and metabolic disease.
Regulation by nutrients and hormones
In simple terms: The cell senses available nutrients and hormones to switch lipogenesis on or off.
Lipogenesis is activated by insulin and mTORC1 signaling, which promote the expression and activity of lipogenic enzymes such as ACC and FASN. Conversely, AMPK inhibits lipogenesis under low-energy conditions. Transcription factors SREBP-1c and ChREBP coordinate the expression of lipogenic genes in response to nutrients. In disease, pathogens and inflammatory signals can also modulate hepatic lipogenesis, as seen with Fusobacterium nucleatum promoting glycolysis and lipogenesis to exacerbate atherosclerosis.
Key Genes Involved in GO:0008610 lipid biosynthetic process
The following genes and proteins are central to lipid biosynthetic process, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| ACLY | Converts citrate to acetyl-CoA for lipogenesis | Links glucose metabolism to lipid synthesis; target in cancer |
| ACC1 (ACACA) | Carboxylates acetyl-CoA to malonyl-CoA | Rate-limiting enzyme; regulated by AMPK and mTORC1 |
| FASN | Synthesizes palmitate from acetyl-CoA and malonyl-CoA | Overexpressed in cancers; FBXW7β loss enhances FASN-mediated lipogenesis |
| SCD1 | Desaturates saturated fatty acids | Modulates membrane fluidity and signaling; target in metabolic disease |
| GPAT | Catalyzes first step of glycerolipid synthesis | Determines flux into storage lipids |
| DGAT | Converts diacylglycerol to triacylglycerol | Key for lipid droplet formation and energy storage |
| MIGA2 | Tethers mitochondria, ER, and lipid droplets | Promotes de novo lipogenesis in adipocytes |
| SREBP-1c | Transcription factor inducing lipogenic genes | Master regulator of lipogenesis |
| ChREBP | Transcription factor responding to glucose | Coordinates carbohydrate-driven lipogenesis |
| AMPK | Energy sensor inhibiting lipogenesis | Phosphorylates ACC to suppress fatty acid synthesis |
| mTORC1 | Promotes lipogenesis via SREBP and other targets | Integrates growth signals with lipid synthesis |
| GLS | Provides glutamate for glutamine-driven lipogenesis | Supports hepatic lipogenesis from amino acids |
| PHGDH | Serine synthesis pathway enzyme | Serine catabolism generates NADPH for lipogenesis |
| IL-33 | Cytokine induced by lipogenesis in brain | Mediates blood-brain barrier recovery after stroke |
How Is lipid biosynthetic process Regulated?
Lipid biosynthetic process is regulated at multiple levels. Hormonal signals such as insulin activate mTORC1, which promotes SREBP-1c processing and the expression of lipogenic genes including ACC and FASN. Nutrient availability, particularly glucose and amino acids, controls the supply of acetyl-CoA and NADPH. AMPK acts as an energy sensor that inhibits ACC activity via phosphorylation when ATP levels are low. In addition, transcription factors ChREBP and SREBP-1c respond to glucose and sterol levels to fine-tune lipogenic gene expression. Post-translational modifications and protein-protein interactions further modulate enzyme activity, as exemplified by FBXW7β regulation of FASN stability.
lipid biosynthetic process and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| FASN | Colorectal cancer growth | Knockout or point-mutation in HCT116 cells |
| ACLY | Metabolic reprogramming in cancer | CRISPR knockout in cancer cell lines |
| MIGA2 | Adipocyte lipogenesis and obesity | Knockout in 3T3-L1 adipocytes |
| IL-33 | Ischemic stroke recovery | Overexpression in mouse brain endothelial cells |
| GLS | Hepatic lipogenesis and NAFLD | Liver-specific knockout in mice |
Cancer
Many cancers exhibit enhanced de novo lipogenesis to support rapid proliferation and membrane synthesis. In colorectal cancer, loss of FBXW7β stabilizes FASN and enhances lipogenesis, promoting tumor growth. Targeting lipogenic enzymes such as FASN and ACC has shown promise in preclinical models, making them attractive for therapeutic development.
Metabolic and cardiovascular disease
Dysregulated hepatic lipogenesis contributes to non-alcoholic fatty liver disease, insulin resistance, and atherosclerosis. Periodontitis-associated Fusobacterium nucleatum can promote hepatic glycolysis and lipogenesis, exacerbating atherosclerosis in mouse models. Understanding the carbon sources for hepatic lipogenesis, including amino acids, may reveal new therapeutic targets.
Neurological disorders
Lipid biosynthesis is essential for brain function and repair. After ischemic stroke, glyceryl triacetate promotes blood-brain barrier recovery through lipogenesis-mediated induction of IL-33 in mice. This highlights the potential of modulating lipogenesis for neuroprotective strategies.
From lipid biosynthetic process-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Is a lipogenic gene essential for cancer cell proliferation? | CRISPR knockout in cancer cell lines |
| Does a specific point mutation alter enzyme activity? | Point-mutation knock-in via CRISPR |
| Does a gene promote lipogenesis in adipocytes? | Overexpression in 3T3-L1 cells |
| How does a gene affect lipid droplet dynamics? | Tagged knock-in with fluorescent reporter |
| What is the role of a gene in hepatic lipogenesis in vivo? | Liver-specific knockout mouse |
| Can a gene regulate blood-brain barrier recovery? | Brain endothelial overexpression in stroke model |
How to Study the lipid biosynthetic process Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Lipidomics (LC-MS) | Lipid species abundance | Quantify changes in triglycerides and phospholipids |
| Isotope tracing | Metabolic flux | Determine carbon sources for lipogenesis |
| RNA-seq | Gene expression | Identify lipogenic gene signatures |
| Proteomics | Protein abundance and modifications | Assess FASN stability and interactions |
| CRISPR knockout screen | Gene essentiality | Discover novel lipogenesis regulators |
| Fluorescence microscopy | Lipid droplet size and number | Study organelle interactions |
| Western blot | Protein expression and phosphorylation | Measure ACC phosphorylation by AMPK |
Lipidomics and metabolic flux analysis
Mass spectrometry-based lipidomics quantifies lipid species and isotope tracing measures flux through lipogenic pathways. These methods reveal how genetic perturbations alter lipid synthesis and storage.
CRISPR screens and functional genomics
Genome-wide CRISPR knockout screens can identify novel regulators of lipid biosynthetic process. Such screens have uncovered genes like FBXW7β that modulate FASN stability and lipogenesis.
Transcriptomics and proteomics
RNA-seq and proteomics measure expression changes in lipogenic enzymes and regulators upon genetic or pharmacological intervention. These approaches help define the transcriptional and post-translational landscape of lipogenesis.
Imaging and lipid droplet analysis
Fluorescence microscopy with lipid droplet dyes or tagged proteins visualizes lipogenesis and lipid storage dynamics. This is particularly useful for studying MIGA2 and other proteins that tether organelles to lipid droplets.
How CRISPR Can Be Used to Study GO:0008610 lipid biosynthetic process
Knockout
CRISPR knockout of lipogenic genes such as FASN or ACC1 can abolish de novo lipogenesis and impair cell proliferation, providing causal evidence for their role in cancer and metabolism. Knockout models are also used to validate findings from CRISPR screens.
Point Mutation
Point mutations can be introduced to mimic disease-associated variants or to dissect catalytic residues in enzymes like FASN or ACC1. Such models help distinguish between enzymatic activity and scaffolding functions.
Knock-in
Knock-in of tagged versions of lipogenic proteins (e.g., GFP-MIGA2) allows real-time visualization of protein localization and dynamics at lipid droplets. Knock-in of reporter genes can also monitor pathway activity.
Overexpression
Overexpression of lipogenic genes such as FASN or MIGA2 can drive increased lipid synthesis and storage, modeling conditions of excess lipogenesis in cancer or obesity. Overexpression in cell lines or mouse models helps establish sufficiency.
How EDITGENE Supports lipid biosynthetic process Research
Researchers studying lipid biosynthetic process-related genes often need to determine whether a candidate gene is causally involved in lipid synthesis, how specific mutations affect enzyme function, and whether targeting the gene alters disease phenotypes. EDITGENE provides comprehensive CRISPR-based services to address these questions with precision and reproducibility.
Contact EDITGENE today to design your custom CRISPR model for lipid biosynthetic process research.
Frequently Asked Questions About lipid biosynthetic process
What is lipid biosynthetic process?
Lipid biosynthetic process (GO:0008610) is the set of chemical reactions and pathways that form lipids, which are compounds soluble in organic solvents but not or sparingly in water.
What genes are involved in lipid biosynthetic process?
Key genes include ACLY, ACC1, FASN, SCD1, GPAT, DGAT, and regulators such as SREBP-1c, ChREBP, AMPK, and mTORC1.
Why is lipogenesis important in cancer?
Many cancers upregulate de novo lipogenesis to support rapid proliferation and membrane synthesis, and targeting lipogenic enzymes can inhibit tumor growth.
How is lipid biosynthetic process regulated?
It is regulated by hormones like insulin, nutrients, and energy sensors such as mTORC1 and AMPK, which control the expression and activity of lipogenic enzymes.
What are the main substrates for lipogenesis?
Acetyl-CoA, malonyl-CoA, glycerol-3-phosphate, and amino acids such as glutamine and serine are major substrates.
Can amino acids fuel hepatic lipogenesis?
Yes, amino acids are a major carbon source for hepatic lipogenesis, contributing to acetyl-CoA pools and NADPH production.
What is the role of MIGA2 in lipogenesis?
MIGA2 links mitochondria, the ER, and lipid droplets to promote de novo lipogenesis in adipocytes.
How does periodontitis affect lipogenesis?
Periodontitis-associated Fusobacterium nucleatum can promote hepatic glycolysis and lipogenesis, exacerbating atherosclerosis.
Is lipogenesis involved in stroke recovery?
Yes, glyceryl triacetate promotes blood-brain barrier recovery after ischemic stroke through lipogenesis-mediated IL-33 induction in mice.
What CRISPR models are used to study lipogenesis?
Knockout, point-mutation, knock-in, and overexpression models are commonly used to dissect gene function in lipid biosynthetic process.
Conclusion
GO:0008610 lipid biosynthetic process is a central anabolic pathway that builds fatty acids, triglycerides, and other lipids essential for cell function. Its dysregulation is implicated in cancer, metabolic disease, and neurological disorders, making it a rich area for research. By leveraging CRISPR-based models and multi-omics approaches, researchers can uncover new therapeutic targets and biomarkers within this pathway.
References
- 1. Jeon YG et al.. 2023. Physiological and pathological roles of lipogenesis.. Nat Metab 5(5):735-759 PMID: 37142787
- 2. Wei W et al.. 2023. FBXW7β loss-of-function enhances FASN-mediated lipogenesis and promotes colorectal cancer growth.. Signal Transduct Target Ther 8(1):187 PMID: 37202390
- 3. Liao Y et al.. 2024. Amino acid is a major carbon source for hepatic lipogenesis.. Cell Metab 36(11):2437-2448.e8 PMID: 39461344
- 4. Ameer F et al.. 2014. De novo lipogenesis in health and disease.. Metabolism 63(7):895-902 PMID: 24814684
- 5. Zhang Z et al.. 2021. Serine catabolism generates liver NADPH and supports hepatic lipogenesis.. Nat Metab 3(12):1608-1620 PMID: 34845393
- 6. Freyre CAC et al.. 2019. MIGA2 Links Mitochondria, the ER, and Lipid Droplets and Promotes De Novo Lipogenesis in Adipocytes.. Mol Cell 76(5):811-825.e14 PMID: 31628041
- 7. Zhou LJ et al.. 2023. Periodontitis exacerbates atherosclerosis through Fusobacterium nucleatum-promoted hepatic glycolysis and lipogenesis.. Cardiovasc Res 119(8):1706-1717 PMID: 36943793
- 8. Wei H et al.. 2023. Glyceryl triacetate promotes blood-brain barrier recovery after ischemic stroke through lipogenesis-mediated IL-33 in mice.. J Neuroinflammation 20(1):264 PMID: 37968698
