GO:0071642 positive regulation of macrophage inflammatory protein 1 alpha production: Immune Signaling Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0071642 describes any process that increases the production of macrophage inflammatory protein 1 alpha (MIP-1α, also known as CCL3).
• MIP-1α/CCL3 is a chemokine that recruits immune cells such as neutrophils and monocytes to sites of inflammation.
• Positive regulation of MIP-1α production is observed in diverse cell types, including basophils, osteoblasts, and macrophages.
• Dysregulated MIP-1α production contributes to pulmonary fibrosis, acute lung injury, osteoarthritis, and hematological malignancies.
• Key signaling molecules and transcription factors, such as SIRT1 and SRGN, modulate MIP-1α production.
• CRISPR-based models (knockout, knock-in, overexpression) enable precise dissection of the regulatory mechanisms controlling MIP-1α production.
Description
Macrophage inflammatory protein 1 alpha (MIP-1α), officially known as chemokine (C-C motif) ligand 3 (CCL3), is a key chemokine involved in the recruitment and activation of immune cells during inflammation. The Gene Ontology term GO:0071642, positive regulation of macrophage inflammatory protein 1 alpha production, captures the biological processes that increase the synthesis and secretion of this chemokine. Understanding this term is critical for researchers studying inflammatory diseases, host defense, and cancer, as MIP-1α levels are tightly linked to disease severity and progression. This article integrates authoritative QuickGO data with published literature to provide a comprehensive overview of the mechanisms, genes, and experimental models relevant to GO:0071642.
positive regulation of macrophage inflammatory protein 1 alpha production At A Glance
| GO ID | GO:0071642 |
|---|---|
| GO term | positive regulation of macrophage inflammatory protein 1 alpha production |
| Ontology | biological_process |
| Synonym | positive regulation of CCL3 production; positive regulation of chemokine (C-C motif) ligand 3 production; positive regulation of MIP-1a production |
| Major function | Increases the production of MIP-1α/CCL3, a chemokine that recruits immune cells to sites of inflammation. |
| Related diseases | Pulmonary fibrosis, acute lung injury, osteoarthritis, myeloid leukaemias. |
| Key regulators | SIRT1, SRGN, and various inflammatory stimuli. |
| Cellular sources | Basophils, osteoblasts, macrophages, neutrophils. |
What Is GO:0071642?
GO:0071642 is defined as any process that activates or increases the frequency, rate, or extent of production of macrophage inflammatory protein 1 alpha. This includes transcriptional activation, enhanced mRNA stability, increased translation, and augmented secretion of the CCL3 protein.
Why Is positive regulation of macrophage inflammatory protein 1 alpha production Important in Cell Biology?
Positive regulation of MIP-1α production is a central node in inflammatory and immune responses. MIP-1α recruits neutrophils and monocytes, and its overproduction is associated with tissue damage in acute lung injury and fibrosis. Conversely, MIP-1α can inhibit growth of myeloid leukemia cells, suggesting therapeutic potential. Thus, understanding how MIP-1α production is positively regulated offers opportunities for targeted interventions in inflammatory diseases and cancer.
• MIP-1α is a chemoattractant for neutrophils and monocytes, driving inflammation.
• Positive regulation of MIP-1α is implicated in silica-induced pulmonary fibrosis.
• MIP-1α contributes to acute lung injury in animal models.
• SRGN promotes macrophage recruitment through CCL3 in osteoarthritis.
• MIP-1α has growth inhibitory effects in myeloid leukaemias.
• Basophils produce MIP-1α upon stimulation, linking to allergic inflammation.
• MIP-1α enhances IgE and IgG4 production by B cells, modulating humoral immunity.
• Schistosomal egg antigens modulate MIP-1 expression in granulomatous responses.
• Osteoblast-CD4+ CTL crosstalk via SIRT1/DAAM2 axis regulates MIP-1α production and bone loss.
What Happens During positive regulation of macrophage inflammatory protein 1 alpha production?
Initiation by Inflammatory Stimuli
In simple terms: Inflammation triggers cells to start making more MIP-1α.
Various stimuli, such as silica particles, antigens, or cytokines, initiate signaling cascades that lead to increased MIP-1α production. For example, silica exposure induces Ccl3+ neutrophil recruitment in pulmonary fibrosis. Basophils produce MIP-1α in response to stimulation, linking to allergic inflammation.
Transcriptional Activation
In simple terms: Genes are switched on to make more MIP-1α mRNA.
Transcription factors such as NF-κB and others are activated, binding to the CCL3 promoter and enhancing transcription. In osteoarthritis, SRGN promotes CCL3 expression in macrophages. The SIRT1/DAAM2 axis in osteoblasts regulates MIP-1α production, affecting osteoclastogenesis.
Post-transcriptional Regulation
In simple terms: The mRNA message is stabilized or translated more efficiently.
After transcription, MIP-1α mRNA can be stabilized or its translation enhanced, leading to increased protein levels. In myeloid leukaemias, MIP-1α production is modulated at multiple levels, contributing to growth inhibition.
Secretion and Extracellular Function
In simple terms: MIP-1α is released to attract immune cells.
Newly synthesized MIP-1α is secreted into the extracellular space, where it binds to chemokine receptors on target cells, inducing chemotaxis. This leads to recruitment of neutrophils and monocytes to sites of inflammation, as seen in acute lung injury and fibrosis.
Key Genes Involved in GO:0071642 positive regulation of macrophage inflammatory protein 1 alpha production
The following genes and proteins are key players in the positive regulation of MIP-1α production, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| CCL3 | Encodes MIP-1α; the chemokine itself | Central to GO:0071642; target for knockout and overexpression studies. |
| SIRT1 | Deacetylase that regulates osteoblast-CD4+ CTL crosstalk | Modulates MIP-1α production in age-related bone loss. |
| DAAM2 | Formin-like protein involved in Wnt signaling | Part of SIRT1/DAAM2 axis affecting MIP-1α. |
| SRGN | Serglycin, a proteoglycan | Promotes macrophage recruitment through CCL3 in osteoarthritis. |
| NFKB1 | Transcription factor subunit | Drives CCL3 transcription in inflammation. |
| CXCL10 | Chemokine | Interplays with Ccl3+ neutrophils in fibrosis. |
| MMP14 | Matrix metalloproteinase | Expressed by Cxcl10+ monocytes, linked to Ccl3+ neutrophils. |
| CD4 | T cell co-receptor | CD4+ CTLs interact with osteoblasts to regulate MIP-1α. |
| RANTES | CCL5, related chemokine | Enhances IgE and IgG4 production with MIP-1α. |
| IgE | Immunoglobulin E | Production enhanced by MIP-1α in B cells. |
| IgG4 | Immunoglobulin G4 | Production enhanced by MIP-1α in B cells. |
| MIP-1α | Macrophage inflammatory protein 1 alpha | The protein product of CCL3; central to the term. |
| CCR1 | Chemokine receptor | Mediates MIP-1α effects on target cells. |
| CCR5 | Chemokine receptor | Mediates MIP-1α effects on target cells. |
| IL-4 | Cytokine | May modulate MIP-1α production in basophils. |
| LPS | Lipopolysaccharide | Stimulates MIP-1α production in macrophages. |
| TNF | Tumor necrosis factor | Induces MIP-1α in various cell types. |
| IL-1β | Interleukin-1 beta | Stimulates MIP-1α production. |
How Is positive regulation of macrophage inflammatory protein 1 alpha production Regulated?
The positive regulation of MIP-1α production is controlled by a network of signaling pathways and transcription factors. Inflammatory stimuli such as LPS, TNF, and IL-1β activate NF-κB, which binds to the CCL3 promoter and enhances transcription. The SIRT1/DAAM2 axis in osteoblasts modulates MIP-1α production, influencing osteoclastogenesis and bone loss. SRGN promotes CCL3 expression in macrophages, contributing to osteoarthritis. Additionally, schistosomal egg antigens can modulate MIP-1 expression in granulomatous responses.
positive regulation of macrophage inflammatory protein 1 alpha production and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| CCL3 | Pulmonary fibrosis | Ccl3 knockout mice exposed to silica |
| SRGN | Osteoarthritis | SRGN knockout or overexpression in chondrocytes |
| SIRT1 | Age-related bone loss | Osteoblast-specific SIRT1 knockout mice |
| CCL3 | Acute lung injury | LPS-induced lung injury in Ccl3-/- mice |
| CCL3 | Myeloid leukaemia | Leukemia cell lines with CCL3 overexpression |
Pulmonary Fibrosis and Acute Lung Injury
Positive regulation of MIP-1α production is critically involved in silica-induced pulmonary fibrosis, where Ccl3+ neutrophils are recruited and mediate tissue remodeling. In acute lung injury, MIP-1α contributes to neutrophil infiltration and lung damage.
Osteoarthritis
In osteoarthritis, SRGN promotes macrophage recruitment through CCL3, exacerbating joint inflammation and cartilage degradation. Targeting MIP-1α production may offer therapeutic benefits.
Myeloid Leukaemias
MIP-1α has growth inhibitory effects on myeloid leukemia cells, and its production is dysregulated in these malignancies. Understanding its positive regulation could inform novel treatment strategies.
Allergic and Parasitic Diseases
Basophils produce MIP-1α, linking to allergic inflammation. In schistosomiasis, MIP-1 expression is modulated in granulomatous hyporesponsiveness.
From positive regulation of macrophage inflammatory protein 1 alpha production-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does CCL3 knockout reduce fibrosis? | CCL3 knockout mouse model |
| Does SRGN overexpression increase CCL3 production? | SRGN overexpression in macrophage cell lines |
| Does SIRT1 regulate MIP-1α in osteoblasts? | Osteoblast-specific SIRT1 knockout mice |
| Does point mutation in CCL3 promoter affect transcription? | CRISPR knock-in of point mutations in CCL3 promoter |
| Does tagged CCL3 allow tracking of secretion? | Knock-in of tagged CCL3 (e.g., HA-tag) |
| Does overexpression of CCL3 enhance immune cell recruitment? | CCL3 overexpression in vivo using viral vectors |
How to Study the positive regulation of macrophage inflammatory protein 1 alpha production Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Transcriptome-wide mRNA levels | Identify genes co-regulated with CCL3 |
| qPCR | Specific mRNA levels | Validate CCL3 induction |
| ELISA | Secreted protein concentration | Quantify MIP-1α in supernatants |
| Western blot | Intracellular protein levels | Assess MIP-1α synthesis |
| Immunohistochemistry | Tissue localization | Detect MIP-1α in inflamed tissues |
| Chemotaxis assay | Cell migration | Measure functional MIP-1α activity |
| CRISPR screen | Gene knockout effects | Identify regulators of MIP-1α production |
| Flow cytometry | Cell surface markers and intracellular cytokines | Analyze MIP-1α-producing cells |
Transcriptional Profiling
RNA-seq and qPCR can quantify CCL3 mRNA levels in response to stimuli, revealing transcriptional regulation.
Protein Quantification
ELISA and Western blot measure MIP-1α protein levels in cell supernatants and lysates, assessing production and secretion.
Imaging and Localization
Immunohistochemistry and immunofluorescence localize MIP-1α in tissues, as shown in schistosomal granulomas.
Functional Assays
Chemotaxis assays measure the ability of MIP-1α to recruit immune cells, linking production to function.
How CRISPR Can Be Used to Study GO:0071642 positive regulation of macrophage inflammatory protein 1 alpha production
Knockout
CRISPR knockout of CCL3 or its regulators (e.g., SRGN, SIRT1) can abolish or reduce MIP-1α production, confirming their roles.
Point Mutation
Introducing point mutations in the CCL3 promoter or coding region can dissect regulatory elements and functional residues.
Knock-in
Knock-in of tagged CCL3 (e.g., HA or GFP) allows real-time tracking of MIP-1α production and secretion.
Overexpression
CRISPR activation (CRISPRa) or viral overexpression of CCL3 can enhance MIP-1α production, modeling inflammatory conditions.
How EDITGENE Supports positive regulation of macrophage inflammatory protein 1 alpha production Research
Researchers studying positive regulation of macrophage inflammatory protein 1 alpha production-related genes often need to determine whether a candidate gene is causally involved in MIP-1α regulation or is merely correlated. EDITGENE provides comprehensive CRISPR-based services to enable such functional studies.
Contact EDITGENE today to design your custom CRISPR model for positive regulation of macrophage inflammatory protein 1 alpha production research.
Frequently Asked Questions About positive regulation of macrophage inflammatory protein 1 alpha production
What is GO:0071642?
GO:0071642 is the Gene Ontology term for positive regulation of macrophage inflammatory protein 1 alpha production, describing processes that increase MIP-1α/CCL3 synthesis and secretion.
What genes are involved in positive regulation of MIP-1α production?
Key genes include CCL3, SRGN, SIRT1, DAAM2, and NFKB1, among others.
What diseases are associated with MIP-1α overproduction?
Pulmonary fibrosis, acute lung injury, osteoarthritis, and myeloid leukaemias are linked to dysregulated MIP-1α.
How is MIP-1α production regulated?
It is regulated transcriptionally by NF-κB and other factors, and post-transcriptionally by mRNA stability and translation.
What cell types produce MIP-1α?
Basophils, macrophages, osteoblasts, and neutrophils are known producers.
What is the role of SRGN in MIP-1α production?
SRGN promotes macrophage recruitment through CCL3 in osteoarthritis.
How does SIRT1 affect MIP-1α?
SIRT1 in osteoblasts modulates MIP-1α production via the DAAM2 axis, influencing bone loss.
Can CRISPR be used to study MIP-1α regulation?
Yes, CRISPR knockout, knock-in, and overexpression models enable precise dissection of regulatory mechanisms.
What methods measure MIP-1α production?
ELISA, Western blot, qPCR, RNA-seq, and chemotaxis assays are commonly used.
What is the difference between MIP-1α and CCL3?
MIP-1α is the protein product of the CCL3 gene; they refer to the same molecule.
Conclusion
GO:0071642, positive regulation of macrophage inflammatory protein 1 alpha production, is a critical biological process in inflammation and immunity. Its dysregulation contributes to fibrosis, arthritis, and leukemia, making it a target for therapeutic intervention. CRISPR-based models and advanced omics technologies are essential for unraveling the complex regulatory networks controlling MIP-1α production, paving the way for novel treatments.
References
- 1. Cheng D et al.. 2024. The interplay of Cxcl10(+)/Mmp14(+) monocytes and Ccl3(+) neutrophils proactively mediates silica-induced pulmonary fibrosis.. J Hazard Mater 467:133713 PMID: 38335607
- 2. Yang B et al.. 2025. Osteoblast-CD4(+) CTL Crosstalk Mediated by SIRT1/DAAM2 Axis Prevents Age-Related Bone Loss.. Adv Sci (Weinh) 12(39):e01170 PMID: 40714829
- 3. Li H et al.. 1996. The production of macrophage inflammatory protein-1 alpha by human basophils.. J Immunol 157(3):1207-12 PMID: 8757627
- 4. Shanley TP et al.. 1995. Role of macrophage inflammatory protein-1 alpha (MIP-1 alpha) in acute lung injury in rats.. J Immunol 154(9):4793-802 PMID: 7722328
- 5. Zhang Y et al.. 2024. SRGN promotes macrophage recruitment through CCL3 in osteoarthritis.. Connect Tissue Res 65(4):330-342 PMID: 39067006
- 6. Owen-Lynch PJ et al.. 1998. The growth inhibitory role and potential clinical value of macrophage inflammatory protein 1 alpha in myeloid leukaemias.. Leuk Lymphoma 30(1-2):41-53 PMID: 9669675
- 7. Kimata H et al.. 1996. RANTES and macrophage inflammatory protein 1 alpha selectively enhance immunoglobulin (IgE) and IgG4 production by human B cells.. J Exp Med 183(5):2397-402 PMID: 8642352
- 8. El-Ahwany EG et al.. 2000. Immunolocalization of macrophage adhesion molecule-1 and macrophage inflammatory protein-1 in schistosomal soluble egg antigen-induced granulomatous hyporesponsiveness.. Int J Parasitol 30(7):837-42 PMID: 10899528
