GO:0010506 regulation of autophagy: Cellular Homeostasis Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0010506 regulation of autophagy describes any process that modulates the frequency, rate, or extent of autophagy, the cellular self-digestion of cytoplasmic components.
• The mTOR kinase is a master negative regulator of autophagy, and its inhibition is a major pharmacologic strategy to induce autophagy.
• AMPK and mTOR directly phosphorylate ULK1 to control autophagosome initiation in response to nutrient status.
• Transcriptional and epigenetic programs, including histone modification and DNA methylation, regulate autophagy-lysosomal pathway genes in cancer and bone metabolism.
• Non-coding RNAs and posttranslational modifications provide additional layers of autophagy regulation in glioblastoma and mitochondrial cargo-selective autophagy.
• Dysregulated autophagy regulation contributes to cancer, neurodegeneration, bone disorders, and metabolic disease, making it a key therapeutic target.
Description
Autophagy is an evolutionarily conserved catabolic process in which cells digest parts of their own cytoplasm to recycle nutrients and remove damaged organelles. The Gene Ontology term GO:0010506, regulation of autophagy, encompasses any process that modulates the frequency, rate, or extent of this self-digestion. Because autophagy must be tightly controlled to match cellular nutrient status and stress, its dysregulation is implicated in cancer, neurodegeneration, and metabolic disorders.
regulation of autophagy At A Glance
| GO ID | GO:0010506 |
|---|---|
| GO term | regulation of autophagy |
| Ontology | biological_process |
| Synonym | none |
| Major function | Modulates the frequency, rate or extent of autophagy, the cellular digestion of cytoplasmic components |
| Primary regulators | mTOR, AMPK, ULK1, GSK-3, DJ-1, and transcriptional/epigenetic factors |
| Disease relevance | Cancer, neurodegeneration, bone metabolism disorders, metabolic disease |
| Research methods | CRISPR knockout/knock-in, Ribo-seq, RNA-seq, proteomics, imaging, autophagy flux assays |
What Is GO:0010506?
GO:0010506 regulation of autophagy is defined as any process that modulates the frequency, rate or extent of autophagy, the process in which cells digest parts of their own cytoplasm. This term covers both positive and negative regulation, including signaling events, transcriptional control, and posttranslational modifications that set the level of autophagic flux.
Why Is regulation of autophagy Important in Cell Biology?
Regulation of autophagy is central to cellular homeostasis because it determines whether a cell survives starvation, clears damaged organelles, or undergoes autophagic cell death. Pharmacologic and genetic control of autophagy is actively pursued in cancer therapy, neuroprotection, and bone metabolism.
• Controls nutrient recycling and energy homeostasis during starvation.
• Determines cell survival versus death under stress, influencing cancer therapy response.
• Regulates clearance of damaged mitochondria and protein aggregates in neurodegeneration.
• Epigenetic regulation of autophagy affects bone metabolism and skeletal health.
• Non-coding RNAs regulate autophagy in glioblastoma, impacting tumor progression.
• mTOR inhibitors are used pharmacologically to modulate autophagy in disease models.
• AMPK-mTOR-ULK1 signaling integrates metabolic cues into autophagic flux.
• GSK-3 signaling pathway regulates autophagy, linking it to diverse cellular processes.
• DJ-1 is important in autophagy regulation and disease, including Parkinson's disease.
• Transcriptional control of the autophagy-lysosomal pathway is a key node in cancer.
What Happens During regulation of autophagy?
Initiation and ULK1 complex activation
In simple terms: The cell decides whether to start autophagy based on nutrient signals.
Autophagy initiation is controlled by the ULK1 complex, which is directly phosphorylated by AMPK and mTOR in response to nutrient status. Under nutrient-rich conditions, mTOR phosphorylates ULK1 to suppress autophagy, whereas AMPK activation under low energy promotes ULK1 activity and autophagosome formation.
mTOR-dependent negative regulation
In simple terms: mTOR acts as a brake on autophagy when nutrients are plentiful.
mTOR is a master negative regulator of autophagy and a pharmacologic target for autophagy modulation. Inhibition of mTOR, for example by rapamycin, relieves suppression of ULK1 and downstream autophagic machinery, thereby increasing autophagic flux.
Transcriptional and epigenetic control
In simple terms: Cells can also adjust autophagy by turning genes on or off.
Transcriptional regulation of the autophagy-lysosomal pathway controls expression of autophagy-related genes in cancer. Epigenetic mechanisms, including histone modifications and DNA methylation, regulate autophagy in bone metabolism, adding a layer of long-term control.
Posttranslational modifications and cargo selectivity
In simple terms: Chemical tags on proteins fine-tune autophagy and what gets digested.
Posttranslational modifications regulate mitochondrial cargo-selective autophagy, determining which mitochondria are targeted for degradation. Such modifications provide rapid, reversible control of autophagic activity.
Non-coding RNA and signaling pathway modulation
In simple terms: Small RNA molecules and kinase pathways can dial autophagy up or down.
Non-coding RNAs regulate autophagy in human glioblastoma, influencing tumor cell survival. The GSK-3 signaling pathway also regulates autophagy, linking it to broader cellular signaling networks. DJ-1 is important in autophagy regulation and disease, further expanding the regulatory landscape.
Key Genes Involved in GO:0010506 regulation of autophagy
The following genes and proteins are experimentally validated regulators of autophagy (GO:0010506) according to the cited literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| MTOR | Master negative regulator of autophagy; phosphorylates ULK1 | Pharmacologic target for autophagy modulation |
| PRKAA1/AMPK | Energy sensor; phosphorylates ULK1 to promote autophagy | Direct regulator of ULK1 in autophagy initiation |
| ULK1 | Initiation kinase; integrates AMPK and mTOR signals | Key node for autophagy induction |
| GSK3A/GSK3B | Glycogen synthase kinase-3; regulates autophagy signaling | Pathway regulator of autophagy |
| PARK7/DJ-1 | Autophagy regulator and disease-associated protein | Important in autophagy regulation and disease |
| MAP1LC3B | Autophagosome marker; cargo recruitment | Core autophagy machinery component |
| BECN1 | Autophagosome nucleation | Core autophagy machinery component |
| ATG5 | Autophagosome elongation | Core autophagy machinery component |
| ATG7 | Autophagosome elongation | Core autophagy machinery component |
| ATG12 | Ubiquitin-like conjugation | Core autophagy machinery component |
| SQSTM1/p62 | Cargo receptor for selective autophagy | Selective autophagy marker |
| TFEB | Transcription factor for autophagy-lysosomal genes | Transcriptional regulation of autophagy |
| EP300 | Histone acetyltransferase; epigenetic regulator | Epigenetic regulation of autophagy in bone |
| HDACs | Histone deacetylases; epigenetic modifiers | Epigenetic regulation of autophagy |
| DNMTs | DNA methyltransferases; epigenetic modifiers | Epigenetic regulation of autophagy |
| miRNAs | Non-coding RNAs regulating autophagy | Regulation of autophagy in glioblastoma |
| lncRNAs | Long non-coding RNAs regulating autophagy | Regulation of autophagy in glioblastoma |
How Is regulation of autophagy Regulated?
Regulation of autophagy is controlled by multiple signaling inputs. mTOR negatively regulates autophagy and is a pharmacologic target. AMPK and mTOR directly phosphorylate ULK1 to control autophagy initiation. The GSK-3 signaling pathway also regulates autophagy. Transcriptional and epigenetic mechanisms control autophagy-lysosomal pathway gene expression in cancer and bone metabolism. Non-coding RNAs and posttranslational modifications add further regulatory layers. DJ-1 is important in autophagy regulation and disease.
regulation of autophagy and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| MTOR | Cancer, metabolic disease | Knockout or point-mutation cell models to study autophagy flux |
| PARK7/DJ-1 | Parkinson's disease, neurodegeneration | Knockout and overexpression models to assess autophagy regulation |
| GSK3A/GSK3B | Cancer, neurodegeneration | Knockout and point-mutation models to dissect signaling |
| ULK1 | Cancer, metabolic stress | Knock-in of phospho-mutants to study AMPK/mTOR regulation |
| Non-coding RNAs | Glioblastoma | Overexpression and knockout of specific ncRNAs |
Cancer
Transcriptional regulation of the autophagy-lysosomal pathway is altered in cancer, affecting tumor cell survival and response to therapy. Non-coding RNAs regulate autophagy in human glioblastoma, contributing to tumor progression. mTOR, a key autophagy regulator, is a pharmacologic target in cancer and other diseases.
Neurodegeneration
DJ-1 is important in autophagy regulation and disease, with links to Parkinson's disease and other neurodegenerative conditions. Posttranslational modifications regulate mitochondrial cargo-selective autophagy, which is critical for neuronal survival.
Bone metabolism disorders
Epigenetic regulation of autophagy in bone metabolism influences skeletal homeostasis, and its dysregulation may contribute to bone diseases.
Metabolic and signaling disorders
AMPK and mTOR regulate autophagy through direct phosphorylation of ULK1, integrating metabolic signals; disruption of this axis is implicated in metabolic disease. GSK-3 signaling pathway regulation of autophagy further links autophagy to diverse pathological states.
From regulation of autophagy-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does loss of MTOR increase autophagic flux? | MTOR knockout cell line |
| How does ULK1 phosphorylation by AMPK affect autophagy? | ULK1 point-mutation knock-in (phospho-dead/phospho-mimic) |
| What is the role of DJ-1 in autophagy regulation? | PARK7 knockout and overexpression models |
| How do epigenetic modifiers regulate autophagy genes? | Knockout of EP300, HDACs, or DNMTs |
| Do non-coding RNAs control autophagy in glioblastoma? | Overexpression and knockdown of ncRNAs |
| How does GSK-3 regulate autophagy? | GSK3A/GSK3B knockout and point-mutation models |
How to Study the regulation of autophagy Process
| Method | What It Measures | Typical Application |
|---|---|---|
| LC3B western blot | Autophagosome formation and flux | Assessing autophagy induction or inhibition |
| RNA-seq | Transcriptional changes in autophagy genes | Identifying regulators of autophagy-lysosomal pathway |
| ChIP-seq | Histone modifications and transcription factor binding | Epigenetic regulation of autophagy |
| Proteomics | Posttranslational modifications on autophagy proteins | Mapping regulatory modifications |
| Fluorescence microscopy | Autophagosome and autolysosome number | Visualizing autophagic flux |
| CRISPR knockout | Loss-of-function of candidate regulators | Testing causal role in autophagy |
| CRISPR knock-in | Point mutations or tags in endogenous genes | Dissecting phosphorylation sites |
| ncRNA overexpression/knockdown | Non-coding RNA function in autophagy | Glioblastoma and other cancers |
Autophagy flux assays
LC3B lipidation and turnover, often measured by western blot or fluorescence microscopy, are standard readouts of autophagic flux and are used to assess regulation of autophagy.
Transcriptional and epigenetic profiling
RNA-seq and ChIP-seq can identify transcriptional and epigenetic changes in autophagy-lysosomal pathway genes under different conditions.
Proteomics and posttranslational modification analysis
Mass spectrometry-based proteomics can map posttranslational modifications on autophagy regulators and cargo receptors, revealing how they control selective autophagy.
Non-coding RNA functional screens
Overexpression and knockdown of miRNAs or lncRNAs followed by autophagy flux measurement can identify non-coding RNAs that regulate autophagy in cancer models.
How CRISPR Can Be Used to Study GO:0010506 regulation of autophagy
Knockout
CRISPR knockout of MTOR, ULK1, or other autophagy regulators can test their necessity for autophagy induction and flux.
Point Mutation
Point-mutation knock-in of phosphorylation sites in ULK1 (e.g., phospho-dead or phospho-mimic) can dissect how AMPK and mTOR directly control autophagy.
Knock-in
Knock-in of fluorescent tags such as GFP-LC3B allows real-time monitoring of autophagosome dynamics in live cells.
Overexpression
Overexpression of autophagy regulators like DJ-1 or non-coding RNAs can reveal gain-of-function effects on autophagy and disease phenotypes.
How EDITGENE Supports regulation of autophagy Research
Researchers studying regulation of autophagy-related genes often need to determine whether a candidate gene is causally involved in modulating autophagic flux. EDITGENE provides CRISPR-based cell model services to enable such causal studies.
Contact EDITGENE today to design your custom CRISPR model for regulation of autophagy research.
Frequently Asked Questions About regulation of autophagy
What is GO:0010506 regulation of autophagy?
GO:0010506 is a Gene Ontology biological process term defined as any process that modulates the frequency, rate or extent of autophagy, the cellular digestion of cytoplasmic components.
What genes are involved in regulation of autophagy?
Key genes include MTOR, PRKAA1/AMPK, ULK1, GSK3A/GSK3B, PARK7/DJ-1, and core autophagy genes such as MAP1LC3B, BECN1, and ATG5.
How is autophagy regulated by mTOR?
mTOR negatively regulates autophagy by phosphorylating ULK1, and its inhibition induces autophagy.
What is the role of AMPK in autophagy regulation?
AMPK directly phosphorylates ULK1 to promote autophagy under low-energy conditions.
How do non-coding RNAs regulate autophagy?
Non-coding RNAs such as miRNAs and lncRNAs can modulate autophagy in cancers like glioblastoma.
What diseases are linked to dysregulated autophagy?
Cancer, neurodegeneration, bone metabolism disorders, and metabolic diseases are linked to altered autophagy regulation.
How can I study regulation of autophagy in the lab?
Common methods include LC3B flux assays, RNA-seq, ChIP-seq, proteomics, and CRISPR knockout or knock-in models.
What is the difference between autophagy and regulation of autophagy?
Autophagy is the degradation process itself, while regulation of autophagy refers to the processes that modulate its frequency, rate, or extent.
Can CRISPR be used to study autophagy regulation?
Yes, CRISPR knockout, point-mutation knock-in, and overexpression models are widely used to dissect autophagy regulatory mechanisms.
What are the main signaling pathways regulating autophagy?
The mTOR, AMPK, and GSK-3 signaling pathways are major regulators of autophagy.
Conclusion
GO:0010506 regulation of autophagy is a central biological process that integrates nutrient signaling, transcriptional programs, and posttranslational modifications to control cellular self-digestion. Its dysregulation is implicated in cancer, neurodegeneration, and metabolic disease, making it a high-priority target for basic and translational research. CRISPR-based cell models and multi-omics methods provide powerful tools to dissect these regulatory mechanisms.
References
- 1. Zhang Y et al.. 2024. Epigenetic Regulation of Autophagy in Bone Metabolism.. Function (Oxf) 5(2):zqae004 PMID: 38486976
- 2. Molavand M et al.. 2024. Regulation of autophagy by non-coding RNAs in human glioblastoma.. Med Oncol 41(11):260 PMID: 39375229
- 3. Lechado Terradas A et al.. 2021. Regulation of mitochondrial cargo-selective autophagy by posttranslational modifications.. J Biol Chem 297(5):101339 PMID: 34688664
- 4. Kim YC et al.. 2015. mTOR: a pharmacologic target for autophagy regulation.. J Clin Invest 125(1):25-32 PMID: 25654547
- 5. Chang X et al.. 2020. Transcriptional regulation of autophagy-lysosomal pathway in cancer.. Thorac Cancer 11(2):216-223 PMID: 31912667
- 6. Kim J et al.. 2011. AMPK and mTOR regulate autophagy through direct phosphorylation of Ulk1.. Nat Cell Biol 13(2):132-41 PMID: 21258367
- 7. Pan HY et al.. 2022. Regulation of Autophagy by the Glycogen Synthase Kinase-3 (GSK-3) Signaling Pathway.. Int J Mol Sci 23(3) PMID: 35163631
- 8. Liu S et al.. 2023. Importance of DJ-1 in autophagy regulation and disease.. Arch Biochem Biophys 743:109672 PMID: 37336341
