GO:0032645 regulation of granulocyte macrophage colony-stimulating factor production: Cytokine Regulation, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0032645 describes any process that modulates the frequency, rate, or extent of granulocyte macrophage colony-stimulating factor (GM-CSF) production.
• GM-CSF production is regulated at multiple levels, including transcriptional induction by immune stimuli such as B7 and IL-1 beta in T cells.
• GM-CSF itself feeds back to modulate adaptive immunity and inflammation, partly through induction of CCL17 via IRF4.
• Dysregulated GM-CSF production is implicated in severe pneumonia, where it suppresses type I interferon responses in infants.
• Studying GO:0032645 requires tools such as knockout, knock-in, and overexpression models to dissect causal gene contributions.
• CRISPR-based screens and targeted editing enable precise interrogation of regulators of GM-CSF production in immune and stromal cells.
Description
Granulocyte macrophage colony-stimulating factor (GM-CSF) is a pleiotropic cytokine that controls the survival, proliferation, and activation of myeloid cells, and its production must be tightly regulated to balance protective immunity and tissue damage. The Gene Ontology term GO:0032645, regulation of granulocyte macrophage colony-stimulating factor production, captures all biological processes that modulate the frequency, rate, or extent of GM-CSF biosynthesis and secretion. This term is essential for annotating gene function in immunology, hematology, and inflammation research because GM-CSF sits at the interface of innate and adaptive immunity. Researchers studying GO:0032645 aim to identify the upstream receptors, transcription factors, and signaling pathways that control GM-CSF expression in cell types such as T cells, macrophages, and endometrial cells. For example, GM-CSF production by T cells is regulated by costimulatory B7 molecules and the cytokine IL-1 beta, linking adaptive immune activation to myeloid growth factor output. In parallel, GM-CSF itself can act back on immune cells to induce chemokines like CCL17 via IRF4, creating a feedback loop that shapes inflammatory responses. Understanding GO:0032645 has direct clinical relevance. In infants with severe pneumonia, GM-CSF suppresses type I interferon induction, potentially worsening antiviral defense. In chronic inflammatory diseases, GM-CSF-driven macrophage activation contributes to pathology, making its regulation a therapeutic target. This article synthesizes authoritative QuickGO annotation and verified PubMed literature to provide a research-grade overview of GO:0032645, its mechanisms, key genes, disease links, and experimental strategies including CRISPR-based models.
regulation of granulocyte macrophage colony-stimulating factor production At A Glance
| GO ID | GO:0032645 |
|---|---|
| GO term | regulation of granulocyte macrophage colony-stimulating factor production |
| Ontology | biological_process |
| Synonym | regulation of GM-CSF production; regulation of granulocyte macrophage colony-stimulating factor biosynthetic process; regulation of granulocyte macrophage colony stimulating factor production |
| Major function | Modulates the frequency, rate, or extent of GM-CSF production, thereby controlling myeloid cell activation and immune responses |
| Related cytokine | GM-CSF (CSF2), a pleiotropic cytokine acting on granulocytes and macrophages |
| Key regulatory inputs | Costimulatory molecules (B7), cytokines (IL-1 beta), and inflammatory signals |
| Disease relevance | Severe pneumonia, inflammatory diseases, and conditions involving dysregulated myeloid activation |
| Research methods | Knockout, knock-in, overexpression, CRISPR screens, and cytokine assays |
What Is GO:0032645?
GO:0032645, regulation of granulocyte macrophage colony-stimulating factor production, is defined as any process that modulates the frequency, rate, or extent of granulocyte macrophage colony-stimulating factor production. This biological process encompasses both positive and negative regulation of GM-CSF biosynthesis, including transcriptional, post-transcriptional, and secretory control mechanisms. It is distinct from the production of GM-CSF itself, focusing instead on the regulatory inputs that determine how much GM-CSF is made and released by a cell.
Why Is regulation of granulocyte macrophage colony-stimulating factor production Important in Cell Biology?
GO:0032645 is important because GM-CSF production is a central node in immune regulation, and its dysregulation contributes to infectious, inflammatory, and autoimmune diseases. Precise annotation of this process helps researchers interpret gene function in myeloid biology and design interventions that tune GM-CSF levels for therapeutic benefit.
• GM-CSF regulates survival, proliferation, and activation of granulocytes and macrophages, making its production a key control point in innate immunity.
• T cell-derived GM-CSF production is regulated by costimulatory B7 and IL-1 beta, linking adaptive immune activation to myeloid responses.
• GM-CSF can suppress type I interferon induction in infants with severe pneumonia, highlighting its role in antiviral immunity.
• GM-CSF induces CCL17 via IRF4 in macrophages, contributing to inflammatory cell recruitment.
• Endometrial GM-CSF production is regulated in a reproductive cycle-dependent manner in ewes, indicating tissue-specific control.
• GM-CSF-dependent macrophages produce IL-13 via protease-activated receptor-2, linking GM-CSF to type 2 inflammation.
• GM-CSF modulates eicosanoid production by mononuclear phagocytes, affecting lipid mediator profiles in inflammation.
• Dysregulated GM-CSF production is implicated in chronic inflammatory diseases and is a target for therapeutic antibodies.
• Understanding GO:0032645 aids in interpreting genome-wide association and functional genomics data in immune cells.
• CRISPR-based editing of regulatory genes enables causal testing of GM-CSF production control.
What Happens During regulation of granulocyte macrophage colony-stimulating factor production?
Initiation by Immune and Inflammatory Stimuli
In simple terms: The process starts when immune cells receive signals that tell them to make GM-CSF.
Regulation of GM-CSF production begins with extracellular stimuli such as costimulatory molecules and cytokines. In T cells, B7 costimulation together with IL-1 beta induces GM-CSF production, linking antigen recognition to myeloid growth factor secretion. In macrophages, GM-CSF itself can act in an autocrine or paracrine manner to modulate further responses, including induction of CCL17 via IRF4. These initiating signals are context-dependent and vary by cell type, as shown by endometrial GM-CSF regulation in the ewe.
Transcriptional and Post-Transcriptional Control
In simple terms: Once the cell receives the signal, it turns on genes and adjusts RNA levels to control how much GM-CSF is made.
The regulation of GM-CSF production involves transcriptional activation of the CSF2 gene and post-transcriptional mechanisms that fine-tune mRNA stability and translation. Early studies established that GM-CSF expression is regulated at the level of gene transcription in response to immune signals. In T cells, B7 and IL-1 beta signaling leads to increased GM-CSF production, likely through transcriptional activation. These layers of control ensure that GM-CSF is produced only when needed and in appropriate amounts.
Feedback and Amplification Loops
In simple terms: GM-CSF can feed back to change how immune cells behave, creating loops that amplify or dampen inflammation.
GM-CSF produced by one cell can act on neighboring cells to induce secondary mediators. For example, GM-CSF induces CCL17 production via IRF4 in macrophages, which recruits additional immune cells and amplifies inflammation. GM-CSF also directs adaptive immunogenesis, influencing T cell responses. In severe pneumonia, GM-CSF suppresses type I interferon induction, potentially altering antiviral defense. These feedback loops are integral to the regulation of GM-CSF production and its downstream effects.
Tissue-Specific and Developmental Regulation
In simple terms: Different tissues control GM-CSF production in their own way, depending on the organ and its state.
Regulation of GM-CSF production is tissue-specific. In the endometrium of ewes, GM-CSF production is regulated in a cycle-dependent manner, suggesting hormonal control. In mononuclear phagocytes, GM-CSF modulates eicosanoid production, indicating that its regulation affects lipid mediator synthesis. GM-CSF-dependent macrophages produce IL-13 via protease-activated receptor-2, showing that the consequences of GM-CSF production vary by tissue context. These examples highlight the diversity of regulatory inputs that fall under GO:0032645.
Key Genes Involved in GO:0032645 regulation of granulocyte macrophage colony-stimulating factor production
The following genes and proteins are experimentally implicated in the regulation of GM-CSF production or its downstream effects, based on verified literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| CSF2 | Encodes GM-CSF, the cytokine whose production is regulated | Central to GO:0032645; target for expression assays |
| IL1B | Cytokine that induces GM-CSF production in T cells | Used to stimulate GM-CSF in vitro |
| CD80 | Costimulatory ligand (B7-1) that regulates GM-CSF production | Co-stimulation studies in T cells |
| CD86 | Costimulatory ligand (B7-2) that regulates GM-CSF production | Co-stimulation studies in T cells |
| IRF4 | Transcription factor induced by GM-CSF that drives CCL17 production | Feedback loop in macrophages |
| CCL17 | Chemokine induced by GM-CSF via IRF4 | Readout of GM-CSF activity |
| PAR2 | Protease-activated receptor-2 involved in IL-13 production by GM-CSF-dependent macrophages | Links GM-CSF to type 2 inflammation |
| IL13 | Cytokine produced by GM-CSF-dependent macrophages | Downstream effector of GM-CSF |
| IFN1 | Type I interferon suppressed by GM-CSF in severe pneumonia | Antiviral immunity interaction |
| CSF2RA | Alpha subunit of GM-CSF receptor | Mediates GM-CSF signaling |
| CSF2RB | Beta subunit of GM-CSF receptor | Mediates GM-CSF signaling |
| JAK2 | Kinase downstream of GM-CSF receptor | Signaling pathway |
| STAT5 | Transcription factor activated by GM-CSF receptor | Signaling pathway |
| NFKB1 | Transcription factor involved in inflammatory GM-CSF induction | Transcriptional regulation |
| RELA | NF-kB subunit involved in GM-CSF induction | Transcriptional regulation |
| MAPK1 | Kinase in signaling pathways regulating GM-CSF production | Signal transduction |
| MAPK3 | Kinase in signaling pathways regulating GM-CSF production | Signal transduction |
| PTGS2 | Enzyme in eicosanoid production modulated by GM-CSF | Lipid mediator regulation |
How Is regulation of granulocyte macrophage colony-stimulating factor production Regulated?
Regulation of GM-CSF production is controlled by a network of extracellular signals and intracellular pathways. Costimulatory B7 molecules and IL-1 beta induce GM-CSF in T cells. In macrophages, GM-CSF itself can amplify inflammatory responses through IRF4-dependent CCL17 production. Tissue-specific regulators, such as hormonal signals in the endometrium, further modulate GM-CSF output. Additionally, GM-CSF can suppress type I interferon in severe pneumonia, indicating cross-regulation between cytokine pathways. These layers ensure that GM-CSF production is tightly controlled in space and time.
regulation of granulocyte macrophage colony-stimulating factor production and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| CSF2 | Severe pneumonia, inflammatory diseases | Knockout and overexpression in immune cells |
| IRF4 | Inflammatory macrophage activation | Knockout macrophages with GM-CSF stimulation |
| PAR2 | Type 2 inflammation | Knockout or knockdown in GM-CSF-dependent macrophages |
| IL1B | T cell-driven inflammation | Point mutation or knockout in T cells |
| CSF2RA | Myeloid disorders | Knock-in of patient variants |
Severe Pneumonia and Antiviral Immunity
In infants with severe pneumonia, GM-CSF suppresses the induction of type I interferon, potentially impairing antiviral responses. This suggests that regulation of GM-CSF production is a critical determinant of pneumonia severity and that modulating GM-CSF levels could influence outcomes.
Chronic Inflammatory Diseases
GM-CSF induces CCL17 via IRF4 in macrophages, promoting inflammation and immune cell recruitment. Dysregulated GM-CSF production is therefore implicated in chronic inflammatory conditions, and targeting GM-CSF signaling is an active therapeutic strategy.
Type 2 Inflammation and Fibrosis
GM-CSF-dependent macrophages produce IL-13 via protease-activated receptor-2, linking GM-CSF to type 2 inflammation and potentially fibrosis. Regulation of GM-CSF production thus influences the balance between type 1 and type 2 immune responses.
Reproductive Biology
Endometrial GM-CSF production is regulated in the ewe, suggesting roles in uterine function and fertility. Abnormal regulation could affect reproductive outcomes, though direct human disease links require further study.
From regulation of granulocyte macrophage colony-stimulating factor production-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X regulate GM-CSF production? | CRISPR knockout in primary macrophages or T cells |
| Does a specific point mutation alter GM-CSF regulation? | Point-mutation knock-in via CRISPR |
| Does overexpression of gene Y increase GM-CSF? | CRISPR knock-in of a strong promoter or cDNA overexpression |
| Where is GM-CSF produced in tissue? | Tagged knock-in of CSF2 with fluorescent reporter |
| Which genes control GM-CSF in a genome-wide manner? | CRISPR library screening with GM-CSF readout |
| How does GM-CSF feedback affect CCL17? | Knockout of IRF4 in macrophages |
How to Study the regulation of granulocyte macrophage colony-stimulating factor production Process
| Method | What It Measures | Typical Application |
|---|---|---|
| ELISA | GM-CSF protein concentration | Quantify production after stimulation |
| RT-qPCR | CSF2 mRNA levels | Assess transcriptional regulation |
| RNA-seq | Global transcriptome changes | Identify pathways regulating GM-CSF |
| CRISPR knockout screen | Gene requirement for GM-CSF production | Discover novel regulators |
| Intracellular cytokine staining | Frequency of GM-CSF-producing cells | Single-cell analysis |
| Fluorescent reporter knock-in | Real-time GM-CSF expression | Tissue-specific regulation |
| Western blot | Signaling pathway activation | Confirm upstream signals |
| Luminex | Multiple cytokine levels | Multiplex immune profiling |
Cytokine Production Assays
ELISA and Luminex assays measure GM-CSF protein levels in supernatants from stimulated cells, providing a direct readout of GO:0032645 activity. These methods are used to quantify changes in GM-CSF production after genetic or pharmacological perturbation.
Transcriptional Analysis
RT-qPCR and RNA-seq measure CSF2 mRNA levels, revealing transcriptional regulation of GM-CSF production. These approaches are useful for identifying upstream regulators and for validating CRISPR perturbations.
CRISPR Screens
Genome-wide CRISPR knockout or activation screens coupled with GM-CSF readouts can identify novel regulators of GO:0032645. Such screens are powerful for discovering genes that modulate GM-CSF production in an unbiased manner.
Flow Cytometry and Imaging
Intracellular cytokine staining and fluorescent reporter knock-in models allow single-cell analysis of GM-CSF production. Imaging can reveal spatial and temporal dynamics of GM-CSF expression in tissues.
How CRISPR Can Be Used to Study GO:0032645 regulation of granulocyte macrophage colony-stimulating factor production
Knockout
CRISPR knockout of candidate genes such as IL1B, CD80, or IRF4 can test their requirement for GM-CSF production in primary immune cells. Knockout models are essential for establishing causality in GO:0032645 research.
Point Mutation
Point mutations in signaling genes (e.g., JAK2, STAT5) can be introduced to mimic human variants and assess their impact on GM-CSF regulation. This approach helps dissect specific residues required for cytokine production.
Knock-in
Knock-in of fluorescent reporters or epitope tags at the CSF2 locus enables tracking of GM-CSF production in real time. Knock-in of patient variants into CSF2RA or CSF2RB can model receptor dysfunction.
Overexpression
CRISPR activation or cDNA overexpression of candidate regulators can test sufficiency for inducing GM-CSF production. Overexpression models are useful for identifying rate-limiting factors in GO:0032645.
How EDITGENE Supports regulation of granulocyte macrophage colony-stimulating factor production Research
Researchers studying regulation of granulocyte macrophage colony-stimulating factor production-related genes often need to determine whether a candidate gene is causally involved in controlling GM-CSF output. EDITGENE provides a comprehensive suite of CRISPR-based services to enable such causal experiments in immune and stromal cell models.
Contact EDITGENE today to design your custom CRISPR model for regulation of granulocyte macrophage colony-stimulating factor production research.
Frequently Asked Questions About regulation of granulocyte macrophage colony-stimulating factor production
What is GO:0032645?
GO:0032645 is the Gene Ontology term for regulation of granulocyte macrophage colony-stimulating factor production, describing any process that modulates the frequency, rate, or extent of GM-CSF production.
What genes are involved in regulation of GM-CSF production?
Key genes include CSF2 (encoding GM-CSF), IL1B, CD80, CD86, IRF4, and CSF2RA/CSF2RB, among others.
How is GM-CSF production regulated in T cells?
In T cells, GM-CSF production is regulated by costimulatory B7 molecules and IL-1 beta.
What diseases are linked to GM-CSF regulation?
Dysregulated GM-CSF production is linked to severe pneumonia, chronic inflammatory diseases, and type 2 inflammation.
How can I study regulation of GM-CSF production?
You can use ELISA, RT-qPCR, CRISPR knockout, knock-in reporters, and CRISPR screens to study GM-CSF regulation.
What is the role of IRF4 in GM-CSF biology?
IRF4 is induced by GM-CSF and drives CCL17 production in macrophages, creating a feedback loop.
Does GM-CSF affect type I interferon?
Yes, GM-CSF suppresses type I interferon induction in infants with severe pneumonia.
What cell types produce GM-CSF?
GM-CSF is produced by T cells, macrophages, endometrial cells, and other cell types under appropriate stimulation.
What CRISPR models are available for GM-CSF research?
EDITGENE offers knockout, point mutation, knock-in, overexpression, and library screening models for GM-CSF regulation studies.
Why is regulation of GM-CSF production important?
It controls myeloid cell activation and inflammation, and its dysregulation contributes to infectious and inflammatory diseases.
Conclusion
GO:0032645, regulation of granulocyte macrophage colony-stimulating factor production, is a critical biological process that governs immune cell communication and inflammatory responses. Understanding its mechanisms, key genes, and disease links provides a foundation for therapeutic targeting and functional genomics. CRISPR-based models from EDITGENE enable precise causal dissection of this process, accelerating discovery in immunology and beyond.
References
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- 2. Gasson JC et al.. 1990. Human granulocyte-macrophage colony-stimulating factor (GM-CSF): regulation of expression.. Prog Clin Biol Res 338:27-41 PMID: 2189139
- 3. Seledtsov VI et al.. 2019. Directs effects of granulocyte-macrophage colony stimulating factor (GM-CSF) on adaptive immunogenesis.. Hum Vaccin Immunother 15(12):2903-2909 PMID: 31063025
- 4. McGuire WJ et al.. 2002. Regulation of endometrial granulocyte macrophage-colony stimulating factor (GM-CSF) in the ewe.. Domest Anim Endocrinol 23(3):383-96 PMID: 12206872
- 5. Yamaguchi R et al.. 2015. Mechanism of interleukin-13 production by granulocyte-macrophage colony-stimulating factor-dependent macrophages via protease-activated receptor-2.. Blood Cells Mol Dis 55(1):21-6 PMID: 25976462
- 6. Kruger M et al.. 1996. Production of granulocyte-macrophage colony-stimulating factor by T cells is regulated by B7 and IL-1 beta.. Immunology 88(1):49-54 PMID: 8707349
- 7. Achuthan A et al.. 2016. Granulocyte macrophage colony-stimulating factor induces CCL17 production via IRF4 to mediate inflammation.. J Clin Invest 126(9):3453-66 PMID: 27525438
- 8. Brock TG et al.. 1996. Effects of granulocyte-macrophage colony-stimulating factor on eicosanoid production by mononuclear phagocytes.. J Immunol 156(7):2522-7 PMID: 8786314
