GO:1903450 regulation of G1 to G0 transition: Cell Cycle Quiescence, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:1903450 regulation of G1 to G0 transition describes any process that modulates the frequency, rate or extent of the G1 to G0 transition, the switch by which a proliferating cell exits the active cell cycle into a reversible quiescent state.
• D-type cyclins (CCND1, CCND2, CCND3) and their CDK partners are central regulators of the G1/G0 decision, and D-type cyclins also have CDK-independent functions in DNA mismatch repair that influence this transition.
• NF-kappaB signaling controls cyclin D1 expression and the G0/G1-to-S-phase transition, linking inflammatory and survival pathways to quiescence regulation.
• ARG2 knockdown promotes G0/G1 cell cycle arrest and mitochondrial dysfunction through NF-kappaB and Wnt/beta-catenin signaling cascades, showing that metabolic enzymes can regulate G1 to G0 transition.
• Ion transport and intracellular monovalent ion balance control proliferation and the G0/G1 transition, as shown for ClC-3 in multiple myeloma and in Ehrlich Lettre ascites cells.
• Chemoresistance and disease progression are linked to altered G0/G1 regulation, as demonstrated in 5-fluorouracil-resistant colon cancer cell lines and in adenomyosis models.
Description
The G1 to G0 transition is the point at which a cell leaves the active division cycle and enters a reversible non-dividing state known as quiescence or G0. The Gene Ontology term GO:1903450, regulation of G1 to G0 transition, captures any process that modulates the frequency, rate or extent of this switch, including signals that promote quiescence and those that prevent it. Because quiescence underlies tissue homeostasis, stem cell maintenance, immune memory and tumor dormancy, understanding its regulation is a central problem in cell and cancer biology. Mechanistically, the G1 to G0 transition is governed by the balance between mitogenic signaling and growth-inhibitory cues that converge on the G1 cyclin-CDK machinery. D-type cyclins and their associated kinases are rate-limiting for G1 progression, and their downregulation or inhibition favors exit into G0. In parallel, transcription factors such as NF-kappaB and E2F1, metabolic enzymes such as ARG2, and ion transporters such as ClC-3 have all been shown to modulate the G0/G1 decision in specific cellular contexts. For researchers, GO:1903450 provides a structured framework to annotate and interrogate the many inputs that control quiescence. Experimental systems ranging from mouse fibroblasts to human colon cancer and multiple myeloma cells have been used to dissect these inputs, and the term is increasingly relevant to cancer dormancy, chemoresistance and regenerative medicine.
regulation of G1 to G0 transition At A Glance
| GO ID | GO:1903450 |
|---|---|
| GO term | regulation of G1 to G0 transition |
| Ontology | biological_process |
| Synonym | regulation of cell cycle quiescence; regulation of establishment of cell quiescence; regulation of G1/G0 transition; regulation of stationary phase |
| Major function | Modulates the frequency, rate or extent of the G1 to G0 transition, thereby controlling entry into and exit from quiescence |
| Key regulators | D-type cyclins (CCND1/2/3), CDKs, NF-kappaB, ARG2, ClC-3, E2F1 |
| Cellular context | Fibroblasts, mesangial cells, colon cancer cells, multiple myeloma cells, adenomyosis cells |
| Disease relevance | Cancer chemoresistance, adenomyosis, proliferative disorders |
| Research methods | Cell cycle analysis, knockout/knock-in models, RNA-seq, proteomics, imaging |
What Is GO:1903450?
GO:1903450, regulation of G1 to G0 transition, is defined as any process that modulates the frequency, rate or extent of the G1 to G0 transition. In practice, this means any molecular event, signaling pathway or environmental cue that changes how often, how quickly or how completely a cell exits the G1 phase of the cell cycle into the quiescent G0 state. The term is a biological process and includes both positive regulation (promoting quiescence) and negative regulation (preventing or delaying quiescence).
Why Is regulation of G1 to G0 transition Important in Cell Biology?
Regulation of the G1 to G0 transition is fundamental because it determines whether a cell continues to proliferate or enters a reversible quiescent state that can be re-activated later. This decision influences tissue homeostasis, stem cell function, immune memory and tumor dormancy, and its dysregulation is implicated in cancer chemoresistance and proliferative disorders. Understanding GO:1903450 therefore has direct implications for cancer therapy, regenerative medicine and the interpretation of cell cycle data.
• Controls entry into quiescence (G0), a reversible state critical for tissue homeostasis and stem cell maintenance.
• D-type cyclins and CDKs are rate-limiting for G1 progression and their modulation determines G0 entry.
• NF-kappaB signaling regulates cyclin D1 expression and the G0/G1-to-S-phase transition, linking inflammation to quiescence.
• ARG2 knockdown promotes G0/G1 arrest and mitochondrial dysfunction via NF-kappaB and Wnt/beta-catenin cascades.
• Ion transporters such as ClC-3 and monovalent ion balance control proliferation and the G0/G1 transition.
• E2F1 regulates the G1/S transition in mesangial cells, providing a model for G1 control.
• Altered G0/G1 regulation is associated with 5-fluorouracil resistance in colon cancer cell lines.
• Quiescence regulation is relevant to adenomyosis, where ARG2 knockdown induces G0/G1 arrest.
• Mouse fibroblasts show induction of NF-kappaB DNA-binding activity during the G0-to-G1 transition.
• Understanding this term supports development of therapies targeting dormant or chemoresistant cells.
What Happens During regulation of G1 to G0 transition?
Integration of mitogenic and anti-mitogenic signals
In simple terms: Cells listen to growth signals and stop signals to decide whether to keep dividing or take a rest.
The G1 to G0 transition is controlled by the balance between mitogenic signaling and growth-inhibitory cues that converge on the G1 cyclin-CDK machinery. D-type cyclins and their associated kinases are rate-limiting for G1 progression, and their downregulation or inhibition favors exit into G0. NF-kappaB signaling regulates cyclin D1 expression and the G0/G1-to-S-phase transition, linking inflammatory and survival pathways to quiescence regulation. In mouse fibroblasts, NF-kappaB DNA-binding activity is induced during the G0-to-G1 transition, indicating that this pathway is dynamically engaged as cells move between states.
Cyclin D-CDK control of the restriction point
In simple terms: Cyclin D and its partner enzymes act as a gate that must be passed for a cell to commit to division.
D-type cyclins (CCND1, CCND2, CCND3) and their CDK partners are central regulators of the G1/G0 decision, and D-type cyclins also have CDK-independent functions in DNA mismatch repair that influence this transition. Their expression and activity are modulated by upstream signals, and changes in their levels can shift the balance between proliferation and quiescence. E2F1 regulates the G1/S transition in mesangial cells, providing a downstream node through which G1 control is exerted.
Metabolic and signaling inputs: ARG2, NF-kappaB and Wnt/beta-catenin
In simple terms: Metabolic enzymes and signaling cascades can push cells to stop dividing.
ARG2 knockdown promotes G0/G1 cell cycle arrest and mitochondrial dysfunction in adenomyosis via regulation of NF-kappaB and Wnt/beta-catenin signaling cascades. This demonstrates that metabolic enzymes can regulate the G1 to G0 transition through cross-talk with major signaling pathways. NF-kappaB function in growth control includes regulation of cyclin D1 expression and the G0/G1-to-S-phase transition.
Ion transport and cellular physiology
In simple terms: The movement of ions in and out of cells can influence whether they divide or rest.
ClC-3 is required for G0/G1 to S phase transition induced by IGF-1 via ERK1/2-cyclins cascade in multiple myeloma cells. Monovalent ions control proliferation of Ehrlich Lettre ascites cells, showing that ion balance is a physiological regulator of the G0/G1 transition. These findings indicate that ion transporters and intracellular ion homeostasis are part of the regulatory network of GO:1903450.
Cell cycle exit and quiescence establishment
In simple terms: When cells decide to rest, they enter a reversible state called G0.
The G1 to G0 transition is the point at which a cell leaves the active division cycle and enters a reversible non-dividing state known as quiescence or G0. This transition is modulated by the frequency, rate or extent of quiescence entry, and its dysregulation is associated with chemoresistance in colon cancer cell lines. Understanding how cells establish and exit quiescence is central to cancer dormancy and regenerative biology.
Key Genes Involved in GO:1903450 regulation of G1 to G0 transition
The following genes and proteins have been experimentally implicated in the regulation of the G1 to G0 transition (GO:1903450) in the cited literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| CCND1 | D-type cyclin; rate-limiting for G1 progression and G0 entry | Knockout/overexpression models to study quiescence and DNA mismatch repair |
| CCND2 | D-type cyclin; CDK-independent functions in mismatch repair | Point mutation models to separate CDK-dependent and independent roles |
| CCND3 | D-type cyclin; regulates G1/G0 decision | Knock-in reporters to track quiescence entry |
| CDK4/6 | Partner kinases of D-type cyclins; control G1 progression | Pharmacological and genetic models of G0 arrest |
| NFKB1/RELA | NF-kappaB subunits; regulate cyclin D1 and G0/G1-to-S transition | Knockout models to test inflammatory control of quiescence |
| ARG2 | Arginase 2; knockdown promotes G0/G1 arrest via NF-kappaB and Wnt/beta-catenin | Knockdown/knockout models in adenomyosis and cancer |
| CLCN3 | Chloride channel ClC-3; required for G0/G1 to S transition via ERK1/2-cyclins | Knockout models in multiple myeloma cells |
| E2F1 | Transcription factor; regulates G1/S transition in mesangial cells | Overexpression/knockout models of G1 control |
| ERK1/2 | Signaling kinases downstream of IGF-1; regulate cyclins | Inhibitor and knockout studies of G0/G1 transition |
| IGF-1 | Growth factor; induces G0/G1 to S transition via ERK1/2-cyclins | Stimulation models in multiple myeloma |
| CTNNB1 | Beta-catenin; Wnt signaling component linked to G0/G1 arrest | Knockout/knock-in models in adenomyosis |
| TP53 | Tumor suppressor; frequently linked to cell cycle arrest | Knockout models to study G1/G0 checkpoint |
| CDKN1A | p21; CDK inhibitor affecting G1 progression | Overexpression models to induce quiescence |
| CDKN2A | p16; CDK inhibitor affecting G1 progression | Knockout models to study G0 exit |
| MCM complex | DNA replication licensing; marks proliferating cells | Readout of G1/G0 state in sequencing studies |
| PCNA | Proliferation marker; reflects S-phase entry | Immunostaining and flow cytometry readout |
| Ki-67 | Proliferation marker; absent in G0 | Flow cytometry and imaging of quiescence |
| Cyclin E (CCNE1) | G1/S transition cyclin; downstream of E2F1 | Overexpression models of G1 control |
How Is regulation of G1 to G0 transition Regulated?
Regulation of the G1 to G0 transition is exerted through multiple layers, including growth factor signaling, transcription factor activity and metabolic inputs. NF-kappaB controls cyclin D1 expression and the G0/G1-to-S-phase transition, and its DNA-binding activity is induced during the G0-to-G1 transition in mouse fibroblasts. ARG2 knockdown promotes G0/G1 arrest via NF-kappaB and Wnt/beta-catenin cascades, showing that metabolic enzymes can feed into this regulatory network. Ion transport, exemplified by ClC-3 and monovalent ion balance, also modulates the G0/G1 transition. These pathways collectively determine the frequency, rate and extent of quiescence entry.
regulation of G1 to G0 transition and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| CCND1 | Cancer chemoresistance and dormancy | Knockout and overexpression in colon cancer cell lines |
| ARG2 | Adenomyosis with G0/G1 arrest | Knockdown/knockout in adenomyosis cell models |
| CLCN3 | Multiple myeloma proliferation | Knockout in multiple myeloma cells |
| NFKB1/RELA | Inflammatory control of quiescence | Knockout in mouse fibroblasts |
| E2F1 | Mesangial cell G1/S control | Overexpression in mesangial cells |
Cancer chemoresistance and dormancy
Altered regulation of the G1 to G0 transition is associated with chemoresistance, as shown in 5-fluorouracil-sensitive and -resistant human colon cancer cell lines where G0/G1 transition regulation differs. D-type cyclins and their CDK-independent functions in DNA mismatch repair further link G1/G0 control to genome maintenance and therapy response. Understanding GO:1903450 may inform strategies to target dormant or chemoresistant tumor cells.
Adenomyosis and proliferative disorders
ARG2 knockdown promotes G0/G1 cell cycle arrest and mitochondrial dysfunction in adenomyosis via regulation of NF-kappaB and Wnt/beta-catenin signaling cascades. This indicates that metabolic and signaling perturbations can shift the G1 to G0 balance in benign proliferative disorders. The same pathways are relevant to other conditions where quiescence regulation is altered.
Multiple myeloma and ion transport
ClC-3 is required for G0/G1 to S phase transition induced by IGF-1 via ERK1/2-cyclins cascade in multiple myeloma cells. Monovalent ions control proliferation of Ehrlich Lettre ascites cells, highlighting ion homeostasis as a determinant of the G0/G1 transition. These findings suggest that ion transporters may be explored as targets in hematologic malignancies.
From regulation of G1 to G0 transition-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Is a candidate gene required for G0 entry? | CRISPR knockout followed by cell cycle analysis |
| Does a specific residue control CDK-independent function? | Point mutation knock-in of the candidate residue |
| Can a reporter track quiescence in live cells? | Tagged knock-in of a fluorescent reporter at the endogenous locus |
| Does overexpression drive G0 arrest? | Doxycycline-inducible overexpression cell line |
| Which pathways cooperate with ARG2 in G0/G1 arrest? | ARG2 knockdown combined with NF-kappaB/Wnt inhibitors |
| Does ion transport regulate the G0/G1 transition? | ClC-3 knockout in multiple myeloma cells |
How to Study the regulation of G1 to G0 transition Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Flow cytometry | DNA content and proliferation markers (Ki-67, PCNA) | Quantify G0/G1 fraction in knockout models |
| RNA-seq | Global transcriptome changes | Identify quiescence-associated gene programs |
| Proteomics | Protein abundance and modifications | Map signaling changes during G0 entry |
| Western blot | Protein levels of cyclins and signaling nodes | Validate pathway activation |
| Reporter assays | NF-kappaB and Wnt/beta-catenin activity | Test pathway contribution to G0/G1 arrest |
| Live-cell imaging | Real-time quiescence entry and exit | Track heterogeneity in G1 to G0 transition |
| Cell viability assays | Proliferation and survival | Assess chemoresistance in G0/G1 models |
Cell cycle analysis by flow cytometry
Flow cytometry with DNA dyes and proliferation markers such as Ki-67 and PCNA is used to quantify the fraction of cells in G0/G1 versus S/G2/M. This method is standard for assessing the frequency and extent of the G1 to G0 transition in knockout or overexpression models.
Transcriptomic and proteomic profiling
RNA-seq and proteomics can identify global changes in gene and protein expression associated with quiescence entry. These approaches help map the regulatory network of GO:1903450, including cyclins, CDK inhibitors and signaling components.
Signaling pathway assays
Western blotting and reporter assays for NF-kappaB, Wnt/beta-catenin and ERK1/2 pathways are used to test how specific signals modulate the G0/G1 transition. Such assays link upstream cues to downstream cell cycle effects.
Imaging and live-cell tracking
Fluorescence imaging of tagged reporters and proliferation markers allows real-time tracking of quiescence entry and exit. Live-cell imaging complements population-level assays by revealing heterogeneity in the G1 to G0 transition.
How CRISPR Can Be Used to Study GO:1903450 regulation of G1 to G0 transition
Knockout
CRISPR knockout of candidate genes such as CCND1, ARG2 or CLCN3 allows direct testing of their requirement for the G1 to G0 transition. Knockout cell pools or clones can be analyzed by flow cytometry to quantify changes in the G0/G1 fraction.
Point Mutation
Point mutation knock-in can separate CDK-dependent from CDK-independent functions of D-type cyclins in regulating the G1/G0 decision. Such models are valuable for dissecting specific residues that control quiescence without altering protein levels.
Knock-in
Tagged knock-in of fluorescent reporters at endogenous loci enables live tracking of quiescence entry and exit. Knock-in of pathway reporters can also be used to monitor NF-kappaB or Wnt/beta-catenin activity during the G0/G1 transition.
Overexpression
Inducible overexpression of genes such as ARG2 or E2F1 can drive or prevent G0/G1 arrest, providing gain-of-function evidence. Overexpression models complement knockout studies to establish causality in GO:1903450 regulation.
How EDITGENE Supports regulation of G1 to G0 transition Research
Researchers studying regulation of G1 to G0 transition-related genes often need to determine whether a candidate gene is causally involved in quiescence entry or exit, and CRISPR-based models provide the most direct way to test this. EDITGENE offers a comprehensive suite of services to generate and characterize such models.
Contact EDITGENE today to design your custom CRISPR model for regulation of G1 to G0 transition research.
Frequently Asked Questions About regulation of G1 to G0 transition
What is GO:1903450 regulation of G1 to G0 transition?
GO:1903450 is a Gene Ontology biological process term defined as any process that modulates the frequency, rate or extent of the G1 to G0 transition, the switch by which a cell exits the active cycle into quiescence.
What genes are involved in regulation of G1 to G0 transition?
Key genes include D-type cyclins (CCND1, CCND2, CCND3), CDKs, NF-kappaB subunits, ARG2, CLCN3 and E2F1, as shown in the cited literature.
How is the G1 to G0 transition regulated?
It is regulated by the balance of mitogenic and anti-mitogenic signals converging on cyclin-CDK machinery, with contributions from NF-kappaB, Wnt/beta-catenin, metabolic enzymes and ion transport.
Why is G0 quiescence important in cancer?
Quiescence regulation is linked to chemoresistance and tumor dormancy, as shown in 5-fluorouracil-resistant colon cancer cell lines and in models of G0/G1 arrest.
What is the role of D-type cyclins in G1 to G0 transition?
D-type cyclins are rate-limiting for G1 progression and also have CDK-independent functions in DNA mismatch repair that influence the transition.
How does ARG2 affect the cell cycle?
ARG2 knockdown promotes G0/G1 cell cycle arrest and mitochondrial dysfunction via NF-kappaB and Wnt/beta-catenin signaling cascades.
What is the role of NF-kappaB in G0/G1 transition?
NF-kappaB regulates cyclin D1 expression and the G0/G1-to-S-phase transition, and its DNA-binding activity is induced during the G0-to-G1 transition in mouse fibroblasts.
How can I study regulation of G1 to G0 transition in the lab?
Common methods include flow cytometry for cell cycle analysis, RNA-seq and proteomics, signaling pathway assays, and CRISPR knockout or overexpression models.
What models are used to study G0/G1 arrest?
Models include mouse fibroblasts, mesangial cells, colon cancer cell lines, multiple myeloma cells and adenomyosis cell models.
Does ion transport affect the G1 to G0 transition?
Yes, ClC-3 is required for G0/G1 to S phase transition in multiple myeloma cells, and monovalent ions control proliferation of Ehrlich Lettre ascites cells.
Conclusion
GO:1903450 regulation of G1 to G0 transition provides a precise ontology framework for the many signals that control quiescence entry and exit. Experimental evidence implicates D-type cyclins, NF-kappaB, ARG2, ClC-3 and E2F1 in this process across diverse cell types. Continued research using CRISPR models and multi-omics approaches will clarify how these pathways can be targeted in cancer and proliferative disorders.
References
- 1. Rona G et al.. 2024. CDK-independent role of D-type cyclins in regulating DNA mismatch repair.. Mol Cell 84(7):1224-1242.e13 PMID: 38458201
- 2. Xu Y et al.. 2024. ARG2 knockdown promotes G0/G1 cell cycle arrest and mitochondrial dysfunction in adenomyosis via regulation NF-κB and Wnt/Β-catenin signaling cascades.. Int Immunopharmacol 140:112817 PMID: 39116499
- 3. Inoshita S et al.. 1999. Regulation of the G1/S transition phase in mesangial cells by E2F1.. Kidney Int 56(4):1238-41 PMID: 10504464
- 4. Du Y et al.. 2018. Requirement of ClC-3 in G0/G1 to S Phase Transition Induced by IGF-1 via ERK1/2-Cyclins Cascade in Multiple Myeloma Cells.. Clin Lab 64(6):929-936 PMID: 29945325
- 5. Hinz M et al.. 1999. NF-kappaB function in growth control: regulation of cyclin D1 expression and G0/G1-to-S-phase transition.. Mol Cell Biol 19(4):2690-8 PMID: 10082535
- 6. Baldwin AS Jr et al.. 1991. Induction of NF-kappa B DNA-binding activity during the G0-to-G1 transition in mouse fibroblasts.. Mol Cell Biol 11(10):4943-51 PMID: 1922027
- 7. Klausen TK et al.. 2010. Monovalent ions control proliferation of Ehrlich Lettre ascites cells.. Am J Physiol Cell Physiol 299(3):C714-25 PMID: 20592244
- 8. McGinn CJ et al.. 2000. Cell cycle regulation of the G0/G1 transition in 5-fluorouracil-sensitive and -resistant human colon cancer cell lines.. Cancer J 6(4):234-42 PMID: 11038143
