GO:0071639 positive regulation of monocyte chemotactic protein-1 production: Signaling Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0071639 describes any process that increases the frequency, rate, or extent of monocyte chemotactic protein-1 (MCP-1/CCL2) production.
• MCP-1/CCL2 is a chemokine that recruits monocytes and macrophages to sites of inflammation, and its overproduction drives diseases such as atherosclerosis, rheumatoid arthritis, and cancer.
• Key positive regulators include interleukin-6 (IL-6) trans-signalling, p38 MAPK, and the aryl hydrocarbon receptor (AhR), which modulate CCL2 transcription and secretion.
• Interleukin-10 (IL-10) signalling in somatosensory neurons can suppress CCL2 release, highlighting neuron-immune crosstalk in inflammatory pain.
• Trim72 acts as a host factor that limits Candida albicans infection partly by regulating chemokine production, including MCP-1.
• CRISPR-based knockout, knock-in, and overexpression models enable precise dissection of positive regulators of MCP-1 production in immune and stromal cells.
Description
Monocyte chemotactic protein-1 (MCP-1), also known as CCL2, is a CC chemokine that recruits monocytes, memory T cells, and dendritic cells to sites of inflammation. The Gene Ontology term GO:0071639, positive regulation of monocyte chemotactic protein-1 production, encompasses any biological process that activates or increases the frequency, rate, or extent of MCP-1 production. This term is critical for understanding how inflammatory signals amplify monocyte recruitment in diseases ranging from autoimmune arthritis to cancer. Researchers study GO:0071639 to identify molecular switches that drive pathological chemokine gradients and to develop targeted anti-inflammatory therapies. The process is regulated by diverse stimuli, including cytokines, growth factors, and pathogen-associated molecules, which converge on transcriptional and post-transcriptional mechanisms to enhance CCL2 synthesis and secretion. Because MCP-1 is produced by many cell types, including synoviocytes, adipocytes, and tumor-associated macrophages, positive regulation of its production is a central node in chronic inflammation and tissue remodeling.
positive regulation of monocyte chemotactic protein-1 production At A Glance
| GO ID | GO:0071639 |
|---|---|
| GO term | positive regulation of monocyte chemotactic protein-1 production |
| Ontology | biological_process |
| Synonym | positive regulation of CCL2 production; positive regulation of MCP-1 production |
| Major function | Increases the production of MCP-1/CCL2, a chemokine that recruits monocytes and macrophages to inflammatory sites |
| Related process | Chemotaxis, inflammatory response, cytokine signaling |
| Cellular context | Occurs in immune cells, fibroblasts, endothelial cells, adipocytes, and tumor cells |
| Disease relevance | Atherosclerosis, rheumatoid arthritis, cancer, obesity-associated inflammation |
What Is GO:0071639?
GO:0071639 is defined as any process that activates or increases the frequency, rate, or extent of production of monocyte chemotactic protein-1. In practical terms, it includes signaling events, transcriptional activation, and post-transcriptional changes that lead to elevated MCP-1/CCL2 protein levels or secretion. This term is a child of positive regulation of chemokine production and is specific to MCP-1, distinguishing it from general chemokine regulation.
Why Is positive regulation of monocyte chemotactic protein-1 production Important in Cell Biology?
Positive regulation of MCP-1 production is a central amplifier of monocyte recruitment and chronic inflammation. Dysregulated MCP-1 production contributes to the pathogenesis of autoimmune diseases, metabolic disorders, and cancer progression, making its regulators attractive therapeutic targets. Understanding GO:0071639 helps researchers identify molecular checkpoints that could be modulated to reduce pathological inflammation without compromising host defense.
• MCP-1 is a key chemokine for monocyte recruitment in atherosclerosis and rheumatoid arthritis.
• p38 MAPK signaling contributes to autoimmune renal injury by promoting MCP-1 production.
• IL-6 trans-signalling increases MCP-1 production in immune-mediated necrotizing myopathy.
• AhR knockout exacerbates choroidal neovascularization via multiple pathogenic pathways, including altered MCP-1 regulation.
• IL-10 signaling in somatosensory neurons controls CCL2 release and inflammatory responses.
• Trim72 protects against lethal Candida albicans infection and modulates chemokine production.
• RUNX1 promotes angiogenesis in colorectal cancer by regulating crosstalk between tumor cells and macrophages, involving MCP-1.
• Adipocyte-macrophage communication in obesity involves MCP-1 as a key mediator.
• Targeting positive regulators of MCP-1 production may reduce monocyte infiltration in inflammatory diseases.
• CRISPR screens can identify novel regulators of MCP-1 production in relevant cell types.
What Happens During positive regulation of monocyte chemotactic protein-1 production?
Initiation by Inflammatory Stimuli
In simple terms: Inflammatory signals turn on the MCP-1 gene.
Positive regulation of MCP-1 production begins when cells encounter inflammatory stimuli such as IL-6, IL-1β, TNF-α, or pathogen components. For example, IL-6 trans-signalling activates STAT3 and NF-κB to enhance CCL2 transcription in immune-mediated necrotizing myopathy. Similarly, p38 MAPK signaling contributes to autoimmune renal injury by increasing MCP-1 production in MRL-Fas lpr mice. These stimuli initiate a cascade that leads to elevated MCP-1 mRNA and protein levels.
Transcriptional Activation of CCL2
In simple terms: Transcription factors bind the CCL2 promoter and increase gene expression.
Upon stimulation, transcription factors such as NF-κB, STAT3, and RUNX1 bind to regulatory elements in the CCL2 promoter or enhancer regions. RUNX1 promotes angiogenesis in colorectal cancer by regulating crosstalk between tumor cells and tumor-associated macrophages, partly through MCP-1. AhR signaling also modulates CCL2 expression, as AhR knockout exacerbates choroidal neovascularization via multiple pathogenic pathways. This transcriptional step is a key point of positive regulation.
Post-transcriptional and Secretory Control
In simple terms: After transcription, mRNA stability and protein secretion further tune MCP-1 levels.
Positive regulation also occurs post-transcriptionally. IL-10 signaling in somatosensory neurons controls CCL2 release, indicating that neuronal-immune crosstalk can suppress MCP-1 production at the level of secretion or mRNA stability. Trim72, a host factor protecting against Candida albicans infection, may influence chemokine production including MCP-1. These mechanisms ensure that MCP-1 production is tightly regulated in response to environmental cues.
Amplification via Positive Feedback
In simple terms: MCP-1 can recruit more immune cells, which then produce more MCP-1.
Once secreted, MCP-1 recruits monocytes and macrophages to the site of inflammation. These recruited cells can themselves produce additional MCP-1, creating a positive feedback loop that amplifies the inflammatory response. In obesity, adipocyte-macrophage communication involves MCP-1 as a key mediator, further perpetuating adipose tissue inflammation. This amplification is a hallmark of chronic inflammatory diseases.
Key Genes Involved in GO:0071639 positive regulation of monocyte chemotactic protein-1 production
The following genes and proteins are experimentally implicated in the positive regulation of MCP-1 production, based on the cited literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| CCL2 | Encodes MCP-1, the chemokine whose production is regulated | Direct target of regulation; biomarker of inflammation |
| IL6 | Cytokine that induces MCP-1 via trans-signalling | Therapeutic target in inflammatory myopathies |
| STAT3 | Transcription factor downstream of IL-6 | Mediates IL-6-induced CCL2 transcription |
| MAPK14 (p38α) | Kinase in p38 MAPK pathway | Contributes to autoimmune renal injury and MCP-1 production |
| AHR | Aryl hydrocarbon receptor | Knockout exacerbates choroidal neovascularization via MCP-1 pathways |
| IL10 | Anti-inflammatory cytokine | Neuronal IL-10 signaling controls CCL2 release |
| TRIM72 | Host defense factor | Protects against Candida albicans; may modulate chemokines |
| RUNX1 | Transcription factor | Promotes angiogenesis and macrophage crosstalk via MCP-1 |
| NFKB1 | Transcription factor | Drives CCL2 transcription in inflammation |
| TNF | Pro-inflammatory cytokine | Induces MCP-1 production in various cell types |
| IL1B | Pro-inflammatory cytokine | Stimulates MCP-1 production |
| CCR2 | MCP-1 receptor | Mediates monocyte recruitment; feedback regulation |
| ADIPOQ | Adipokine | Involved in adipocyte-macrophage communication |
| LEP | Leptin | Modulates MCP-1 in obesity |
| VEGFA | Growth factor | Linked to MCP-1 in angiogenesis |
| CXCL12 | Chemokine | May cooperate with MCP-1 in recruitment |
| TGFB1 | Cytokine | Regulates MCP-1 in fibrosis |
How Is positive regulation of monocyte chemotactic protein-1 production Regulated?
Positive regulation of MCP-1 production is controlled at multiple levels. IL-6 trans-signalling activates STAT3 and NF-κB to enhance CCL2 transcription. p38 MAPK signaling contributes to MCP-1 production in autoimmune renal injury. AhR signaling modulates CCL2 expression, as AhR knockout alters choroidal neovascularization. IL-10 signaling in somatosensory neurons can suppress CCL2 release, providing a negative regulatory mechanism. Trim72 may limit chemokine production during Candida albicans infection. These pathways form a complex network that fine-tunes MCP-1 levels in health and disease.
positive regulation of monocyte chemotactic protein-1 production and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| CCL2 | Atherosclerosis, rheumatoid arthritis | ApoE-/- mice, collagen-induced arthritis |
| IL6 | Immune-mediated necrotizing myopathy | Human myoblast cultures, IL6 transgenic mice |
| MAPK14 | Autoimmune renal injury | MRL-Fas lpr mice, p38 inhibitor studies |
| AHR | Choroidal neovascularization | Ahr knockout mice, laser-induced CNV model |
| TRIM72 | Candida albicans infection | Trim72 knockout mice, macrophage infection models |
Rheumatoid Arthritis and Autoimmune Diseases
MCP-1 is produced by inflamed synovial tissue and cultured synoviocytes, contributing to monocyte recruitment and joint destruction in rheumatoid arthritis. p38 MAPK signaling contributes to autoimmune renal injury in MRL-Fas lpr mice by promoting MCP-1 production. IL-6 trans-signalling regulates MCP-1 production in immune-mediated necrotizing myopathy, a rare autoimmune disease. Targeting positive regulators of MCP-1 may reduce inflammation in these conditions.
Cancer and Tumor Microenvironment
RUNX1 promotes angiogenesis in colorectal cancer by regulating crosstalk between tumor cells and tumor-associated macrophages, involving MCP-1. MCP-1 recruits monocytes that differentiate into tumor-associated macrophages, which can promote tumor progression and angiogenesis. AhR knockout exacerbates choroidal neovascularization via multiple pathogenic pathways, including MCP-1 dysregulation. Thus, positive regulation of MCP-1 production is a double-edged sword in cancer.
Obesity and Metabolic Inflammation
Message transmission between adipocytes and macrophages in obesity involves MCP-1 as a key mediator. Adipocytes secrete MCP-1 to recruit macrophages into adipose tissue, leading to chronic low-grade inflammation and insulin resistance. Understanding the positive regulation of MCP-1 production in this context may reveal therapeutic targets for obesity-related metabolic diseases.
Infectious Diseases
Trim72 is a major host factor protecting against lethal Candida albicans infection, and it may modulate chemokine production including MCP-1. IL-10 signaling in somatosensory neurons controls CCL2 release and inflammatory response, highlighting the role of MCP-1 in neuro-immune interactions during infection. Proper regulation of MCP-1 is essential for pathogen clearance without excessive tissue damage.
From positive regulation of monocyte chemotactic protein-1 production-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X regulate MCP-1 production? | CRISPR knockout in THP-1 or primary macrophages |
| Does a point mutation in gene X affect MCP-1 levels? | CRISPR point mutation knock-in in cell lines |
| Does overexpression of gene X increase MCP-1? | Lentiviral overexpression in fibroblasts or immune cells |
| Does a tagged version of gene X localize with MCP-1 vesicles? | CRISPR knock-in of fluorescent tag |
| Which genes regulate MCP-1 production in a genome-wide manner? | CRISPR library screening with MCP-1 reporter |
| Does gene X regulate MCP-1 in vivo? | Conditional knockout mice in inflammation models |
How to Study the positive regulation of monocyte chemotactic protein-1 production Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Transcript levels of CCL2 and related genes | Identifying transcriptional regulators |
| ELISA | Secreted MCP-1 protein | Quantifying production in cell culture |
| Western blot | Intracellular MCP-1 protein | Validating knockdown/knockout effects |
| CRISPR screen | Genes affecting MCP-1 production | Discovery of novel regulators |
| Flow cytometry | MCP-1+ cells or secreted MCP-1 | Immune cell profiling |
| Immunofluorescence | Tissue localization of MCP-1 | In situ inflammation studies |
| qPCR | CCL2 mRNA levels | Rapid screening of perturbations |
Transcriptional Profiling
RNA-seq and qPCR can measure CCL2 mRNA levels after genetic or pharmacological perturbations. These methods help identify transcriptional regulators of MCP-1 production, such as NF-κB and STAT3.
Protein Quantification
ELISA and Western blotting quantify secreted and intracellular MCP-1 protein. These are standard readouts for positive regulation studies, as demonstrated in synoviocyte cultures and myopathy models.
CRISPR Screening
Genome-wide CRISPR knockout or activation screens coupled with an MCP-1 reporter can identify novel positive regulators. This approach has been used to uncover genes like RUNX1 in cancer-macrophage crosstalk.
Imaging and Flow Cytometry
Flow cytometry can detect MCP-1 in cell supernatants or intracellularly, while immunofluorescence can visualize MCP-1 in tissues. These methods are useful for studying cell-type-specific production in complex tissues.
How CRISPR Can Be Used to Study GO:0071639 positive regulation of monocyte chemotactic protein-1 production
Knockout
CRISPR knockout of candidate genes (e.g., IL6, STAT3, AHR) can determine whether they are required for MCP-1 production. For example, AhR knockout exacerbates choroidal neovascularization via multiple pathways, including MCP-1. Knockout of Trim72 increases susceptibility to Candida albicans, partly through altered chemokine production.
Point Mutation
CRISPR point mutation knock-in can model disease-associated variants in genes regulating MCP-1. For instance, mutations in STAT3 or IL6R that affect signaling could be introduced to study their impact on CCL2 transcription.
Knock-in
Knock-in of reporter genes (e.g., luciferase or fluorescent proteins) into the CCL2 locus allows real-time monitoring of MCP-1 production. Tagged knock-in of regulators can also reveal their localization and dynamics.
Overexpression
CRISPR activation (CRISPRa) or lentiviral overexpression can test whether a gene is sufficient to increase MCP-1 production. Overexpression of RUNX1 in colorectal cancer cells enhances macrophage crosstalk and angiogenesis, partly via MCP-1.
How EDITGENE Supports positive regulation of monocyte chemotactic protein-1 production Research
Researchers studying positive regulation of monocyte chemotactic protein-1 production-related genes often need to determine whether a candidate gene is causally involved in MCP-1 regulation or merely correlated with inflammatory responses. EDITGENE provides comprehensive CRISPR-based services to establish causality and mechanism.
Contact EDITGENE today to design your custom CRISPR model for positive regulation of monocyte chemotactic protein-1 production research.
Frequently Asked Questions About positive regulation of monocyte chemotactic protein-1 production
What is GO:0071639?
GO:0071639 is the Gene Ontology term for positive regulation of monocyte chemotactic protein-1 production, describing any process that increases the frequency, rate, or extent of MCP-1/CCL2 production.
What genes are involved in positive regulation of MCP-1 production?
Key genes include IL6, STAT3, MAPK14, AHR, IL10, TRIM72, and RUNX1, as shown in studies of inflammation, autoimmunity, and cancer.
How is MCP-1 production regulated?
MCP-1 production is regulated transcriptionally by NF-κB and STAT3, post-transcriptionally by mRNA stability, and via secretion, with inputs from cytokines like IL-6 and IL-10.
What diseases involve increased MCP-1 production?
Increased MCP-1 production is implicated in rheumatoid arthritis, atherosclerosis, immune-mediated necrotizing myopathy, obesity-associated inflammation, and cancer.
What is the role of p38 MAPK in MCP-1 production?
p38 MAPK signaling contributes to autoimmune renal injury by promoting MCP-1 production in MRL-Fas lpr mice.
How does IL-6 regulate MCP-1?
IL-6 trans-signalling regulates MCP-1 production in immune-mediated necrotizing myopathy, likely via STAT3 activation.
Can CRISPR be used to study MCP-1 regulation?
Yes, CRISPR knockout, knock-in, and overexpression models enable precise dissection of genes controlling MCP-1 production.
What is the role of AhR in MCP-1 production?
AhR knockout exacerbates choroidal neovascularization via multiple pathogenic pathways, including altered MCP-1 regulation.
How does IL-10 affect CCL2 release?
IL-10 signaling in somatosensory neurons controls CCL2 release and inflammatory response, indicating a suppressive role.
What models are used to study positive regulation of MCP-1?
Common models include THP-1 macrophages, primary synoviocytes, MRL-Fas lpr mice, and CRISPR-engineered cell lines.
Conclusion
GO:0071639, positive regulation of monocyte chemotactic protein-1 production, is a critical biological process that amplifies monocyte recruitment in inflammation, autoimmunity, and cancer. The interplay of cytokines, kinases, and transcription factors such as IL-6, p38 MAPK, and AhR determines MCP-1 levels and disease outcomes. CRISPR-based models are powerful tools to identify and validate regulators of this process, offering new avenues for therapeutic intervention.
References
- 1. Choudhary M et al.. 2015. Aryl hydrocarbon receptor knock-out exacerbates choroidal neovascularization via multiple pathogenic pathways.. J Pathol 235(1):101-12 PMID: 25186463
- 2. Iwata Y et al.. 2003. p38 Mitogen-activated protein kinase contributes to autoimmune renal injury in MRL-Fas lpr mice.. J Am Soc Nephrol 14(1):57-67 PMID: 12506138
- 3. de Souza S et al.. 2024. Interleukin-10 signaling in somatosensory neurons controls CCL2 release and inflammatory response.. Brain Behav Immun 116:193-202 PMID: 38081433
- 4. Tan W et al.. 2024. Trim72 is a major host factor protecting against lethal Candida albicans infection.. PLoS Pathog 20(11):e1012747 PMID: 39585917
- 5. Ma X et al.. 2025. Interleukin-6 trans-signalling regulates monocyte chemoattractant protein-1 production in immune-mediated necrotizing myopathy.. Rheumatology (Oxford) 64(2):849-859 PMID: 38391023
- 6. Villiger PM et al.. 1992. Production of monocyte chemoattractant protein-1 by inflamed synovial tissue and cultured synoviocytes.. J Immunol 149(2):722-7 PMID: 1624809
- 7. Guo X et al.. 2024. RUNX1 promotes angiogenesis in colorectal cancer by regulating the crosstalk between tumor cells and tumor associated macrophages.. Biomark Res 12(1):29 PMID: 38419056
- 8. Engin AB. 2024. Message Transmission Between Adipocyte and Macrophage in Obesity.. Adv Exp Med Biol 1460:273-295 PMID: 39287855
