GO:2000340 positive regulation of chemokine (C-X-C motif) ligand 1 production: Signaling Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:2000340 describes any process that activates or increases the frequency, rate or extent of production of chemokine (C-X-C motif) ligand 1 (CXCL1), a secreted neutrophil chemoattractant.
• CXCL1 production is positively regulated by inflammatory signaling cascades including RIPK1-JAK1-STAT3, NF-kB, PI3K/Akt, and IL-17A-dependent pathways.
• USP1 deubiquitinates SNAIL to drive CXCL1 expression in hepatic fibrosis, linking ubiquitin editing to chemokine output.
• CXCL1 upregulation promotes neutrophil recruitment in sepsis-induced lung injury and supports tumor cell migration in liver cancer.
• Dysregulated CXCL1 production is observed in kidney allograft rejection, psoriasis-like inflammation, and vitiligo-associated cutaneous inflammation.
• CRISPR knockout, knock-in, and overexpression models enable causal dissection of genes that positively regulate CXCL1 production.
Description
GO:2000340, positive regulation of chemokine (C-X-C motif) ligand 1 production, is a Gene Ontology biological process term that captures any molecular event that activates or increases the frequency, rate or extent of CXCL1 production. CXCL1 (also known as KC, SCYB1, or keratinocyte-derived chemokine) is a secreted CXC-family chemokine that recruits neutrophils to sites of inflammation and injury. Because CXCL1 sits at the intersection of innate immunity, tissue repair, and tumor progression, understanding how its production is positively regulated is central to inflammation biology. Mechanistically, positive regulation of CXCL1 production is achieved through multiple convergent signaling routes. In sepsis-induced lung injury, RIPK1 drives JAK1-STAT3 signaling to promote CXCL1-mediated neutrophil recruitment. In liver cancer, CXCL1 induces cell migration by upregulating ICAM-1 through PI3K/Akt and NF-kB signaling. In hepatic fibrosis, USP1 stabilizes SNAIL by deubiquitination, which in turn positively regulates CXCL1. NLRP12 modulates host defense through an IL-17A-CXCL1 axis, illustrating cytokine-driven positive regulation. For researchers, GO:2000340 provides a standardized annotation target for experiments that manipulate upstream regulators and measure CXCL1 output. It is relevant to studies of acute inflammation, fibrosis, autoimmunity, and cancer, where CXCL1 levels correlate with disease severity or immune cell infiltration. This article synthesizes verified literature to describe the mechanisms, key genes, disease links, and CRISPR-based research methods for this term.
positive regulation of chemokine (C-X-C motif) ligand 1 production At A Glance
| GO ID | GO:2000340 |
|---|---|
| GO term | positive regulation of chemokine (C-X-C motif) ligand 1 production |
| Ontology | biological_process |
| Synonym | positive regulation of CXCL1 production; positive regulation of KC production; positive regulation of keratinocyte derived chemokine production; positive regulation of SCYB1 production |
| Major function | Increases the frequency, rate or extent of CXCL1 production, promoting neutrophil recruitment and inflammatory signaling |
| Upstream regulators | RIPK1-JAK1-STAT3, NF-kB, PI3K/Akt, IL-17A, USP1-SNAIL |
| Disease relevance | Sepsis-induced lung injury, liver cancer, kidney allograft rejection, psoriasis-like inflammation, vitiligo |
| Research methods | CRISPR KO/knock-in/overexpression, RNA-seq, ELISA, chemotaxis assays |
What Is GO:2000340?
GO:2000340 is defined by QuickGO as any process that activates or increases the frequency, rate or extent of chemokine (C-X-C motif) ligand 1 production. In practical terms, it covers signaling events, transcription factor activation, and post-transcriptional mechanisms that elevate the synthesis and secretion of CXCL1 protein. It is a biological_process term and is distinct from negative regulation or from the production of other chemokines.
Why Is positive regulation of chemokine (C-X-C motif) ligand 1 production Important in Cell Biology?
Positive regulation of CXCL1 production is important because CXCL1 is a master chemoattractant for neutrophils, and its overproduction drives tissue damage in acute inflammatory conditions such as sepsis-induced lung injury. At the same time, CXCL1 promotes tumor cell migration and immune cell infiltration in liver cancer, making it a potential therapeutic target. Understanding the positive regulatory mechanisms, including RIPK1-JAK1-STAT3, NF-kB, and USP1-SNAIL axes, provides entry points for anti-inflammatory and anti-cancer strategies. The term also connects to clinical observations in kidney allograft rejection and skin inflammation, where chemokine profiles are altered.
• CXCL1 is a key neutrophil chemoattractant; its positive regulation controls neutrophil influx in sepsis-induced lung injury.
• CXCL1 upregulation promotes ICAM-1 expression and cell migration in liver cancer via PI3K/Akt and NF-kB.
• USP1-mediated deubiquitination of SNAIL positively regulates CXCL1 in hepatic fibrosis.
• NLRP12 modulates host defense through an IL-17A-CXCL1 axis, linking innate immune sensors to CXCL1 production.
• Chemokine profiles including CXCL1 are affected in serum of patients with acute kidney allograft rejection.
• Psoriasis-like inflammation in mouse models involves CXCL1 and related chemokines.
• Oxidative stress-induced HMGB1 release from melanocytes triggers paracrine inflammation in vitiligo, involving chemokine production.
• GO:2000340 provides a standardized annotation for experiments measuring CXCL1 output after genetic or pharmacological perturbation.
• Targeting positive regulators of CXCL1 may reduce neutrophil-mediated tissue damage in acute inflammation.
• CXCL1 and its regulators are candidate biomarkers and therapeutic targets in cancer and inflammatory diseases.
What Happens During positive regulation of chemokine (C-X-C motif) ligand 1 production?
Initiation by inflammatory or stress signals
In simple terms: Inflammatory or stress signals turn on the machinery that makes CXCL1.
Positive regulation of CXCL1 production begins when cells encounter inflammatory cytokines, pathogen-associated molecules, or oxidative stress. In sepsis-induced lung injury, RIPK1 kinase activity is engaged and drives downstream JAK1-STAT3 signaling, leading to increased CXCL1 production. In vitiligo, oxidative stress causes HMGB1 release from melanocytes, which acts in a paracrine manner to promote cutaneous inflammation, a process that involves chemokine production. These initiating signals set the stage for transcriptional activation of the CXCL1 gene.
Transcriptional activation via NF-kB and STAT3
In simple terms: Transcription factors enter the nucleus and switch on the CXCL1 gene.
Once upstream kinases are activated, transcription factors such as NF-kB and STAT3 translocate to the nucleus and bind regulatory regions of the CXCL1 gene. In liver cancer, CXCL1 induces cell migration by upregulating ICAM-1 through activation of PI3K/Akt and NF-kB signaling, indicating that NF-kB is a positive regulator in this context. In sepsis-induced lung injury, RIPK1 promotes JAK1-STAT3 signaling, and STAT3 activation is associated with increased CXCL1 production. These transcription factors increase the rate of CXCL1 mRNA synthesis.
Post-transcriptional and post-translational control
In simple terms: After the gene is switched on, additional steps control how much CXCL1 protein is made and released.
Positive regulation also occurs after transcription. USP1, a deubiquitinating enzyme, promotes hepatic fibrosis through positive regulation of CXCL1 by deubiquitinating SNAIL, thereby stabilizing SNAIL and indirectly increasing CXCL1 expression. This illustrates that ubiquitin editing and protein stability can feed into CXCL1 production. The NLRP12-IL-17A-CXCL1 axis further shows that cytokine-mediated signaling can amplify CXCL1 output at multiple levels.
Secretion and functional consequences
In simple terms: CXCL1 is released from the cell and attracts neutrophils to the site.
After synthesis, CXCL1 is secreted and acts on CXCR2-expressing neutrophils, promoting their recruitment. In sepsis-induced lung injury, CXCL1-mediated neutrophil recruitment is a key pathological event downstream of RIPK1-JAK1-STAT3 signaling. In liver cancer, CXCL1-induced ICAM-1 upregulation supports cell migration, linking CXCL1 production to tumor progression. Thus, positive regulation of CXCL1 production translates into functional outcomes in inflammation and cancer.
Key Genes Involved in GO:2000340 positive regulation of chemokine (C-X-C motif) ligand 1 production
The following genes and proteins have been experimentally linked to positive regulation of CXCL1 production or to its downstream effects.
| Gene | Major Role | Research Relevance |
|---|---|---|
| RIPK1 | Drives JAK1-STAT3 signaling to promote CXCL1-mediated neutrophil recruitment | Sepsis-induced lung injury model |
| JAK1 | Kinase upstream of STAT3 in CXCL1 positive regulation | Inhibitor studies in lung injury |
| STAT3 | Transcription factor activating CXCL1 expression | Knockdown/knockout in inflammatory models |
| CXCL1 | Secreted chemokine; product of the regulated process | ELISA, chemotaxis assays |
| ICAM-1 | Adhesion molecule upregulated by CXCL1 in liver cancer | Migration assays |
| PI3K | Signaling kinase in CXCL1-induced ICAM-1 upregulation | Inhibitor studies in liver cancer |
| Akt | Downstream kinase of PI3K in CXCL1 signaling | Phosphorylation assays |
| NF-kB | Transcription factor mediating CXCL1 effects | Reporter assays, knockdown |
| USP1 | Deubiquitinates SNAIL to positively regulate CXCL1 | Hepatic fibrosis models |
| SNAIL | Transcription factor stabilized by USP1, indirectly increasing CXCL1 | Fibrosis studies |
| NLRP12 | Modulates host defense through IL-17A-CXCL1 axis | Infection models |
| IL-17A | Cytokine upstream of CXCL1 production | Mucosal immunity studies |
| HMGB1 | Released from melanocytes under oxidative stress; paracrine inflammation | Vitiligo models |
| MyD88 | Adaptor in preconditioning-dependent CXCL10 expression; related chemokine pathway | Neuroprotection models |
| CXCL10 | Related CXC chemokine in endothelial preconditioning | Neuroprotection studies |
| CXCR2 | Receptor for CXCL1 on neutrophils | Neutrophil recruitment assays |
How Is positive regulation of chemokine (C-X-C motif) ligand 1 production Regulated?
Positive regulation of CXCL1 production is controlled by multiple signaling modules. The RIPK1-JAK1-STAT3 axis is a central driver in sepsis-induced lung injury, where RIPK1 activity increases CXCL1 and neutrophil recruitment. In liver cancer, PI3K/Akt and NF-kB signaling mediate CXCL1-induced ICAM-1 upregulation, indicating a positive feedback loop. USP1 regulates CXCL1 by deubiquitinating SNAIL, linking ubiquitin-dependent protein stability to chemokine production. The NLRP12-IL-17A-CXCL1 axis shows that innate immune sensors and adaptive cytokines converge on CXCL1. These pathways provide multiple nodes for pharmacological or genetic intervention.
positive regulation of chemokine (C-X-C motif) ligand 1 production and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| RIPK1 | Sepsis-induced lung injury | LPS-induced sepsis mouse model with Ripk1 knockout |
| CXCL1 | Liver cancer migration | Hepatoma cell lines with CXCL1 overexpression or knockout |
| USP1 | Hepatic fibrosis | Liver fibrosis mouse model with Usp1 knockout |
| NLRP12 | Host defense and mucosal immunity | Nlrp12 knockout mice with infection challenge |
| HMGB1 | Vitiligo cutaneous inflammation | Melanocyte oxidative stress co-culture models |
Sepsis-induced lung injury
In sepsis-induced lung injury, RIPK1 drives JAK1-STAT3 signaling to promote CXCL1-mediated neutrophil recruitment, and inhibition of this axis reduces lung injury. This establishes positive regulation of CXCL1 production as a pathogenic mechanism in acute inflammatory lung disease.
Liver cancer and hepatic fibrosis
In liver cancer, CXCL1 induces cell migration by upregulating ICAM-1 through PI3K/Akt and NF-kB signaling. In hepatic fibrosis, USP1 promotes fibrosis through positive regulation of CXCL1 by deubiquitinating SNAIL. These findings link CXCL1 regulation to both tumor progression and fibrotic remodeling.
Kidney allograft rejection and skin inflammation
Chemokine profiles are affected in serum of patients with acute rejection of kidney allograft, with CXCL1 among the altered chemokines. Psoriasis-like inflammation in an air-pouch mouse model involves CXCL1 and related chemokines. In vitiligo, oxidative stress-induced HMGB1 release from melanocytes triggers paracrine cutaneous inflammation. These conditions highlight the clinical breadth of CXCL1 regulatory mechanisms.
From positive regulation of chemokine (C-X-C motif) ligand 1 production-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does RIPK1 kinase activity drive CXCL1 production? | Ripk1 knockout or kinase-dead knock-in in sepsis mouse models |
| Does USP1 deubiquitinate SNAIL to increase CXCL1? | Usp1 knockout hepatic stellate cells or liver fibrosis mice |
| Does CXCL1 promote liver cancer cell migration? | CXCL1 overexpression or knockout in hepatoma cell lines |
| Does NLRP12 modulate CXCL1 via IL-17A? | Nlrp12 knockout mice with IL-17A neutralization |
| Does oxidative stress increase HMGB1 and chemokine production? | Melanocyte oxidative stress models with HMGB1 knockdown |
| Is STAT3 required for CXCL1 upregulation? | STAT3 knockout or knockdown in lung endothelial or epithelial cells |
How to Study the positive regulation of chemokine (C-X-C motif) ligand 1 production Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Global transcriptome changes including CXCL1 mRNA | Identifying positive regulators after perturbation |
| qPCR | CXCL1 mRNA levels | Validation of transcriptional upregulation |
| ELISA | Secreted CXCL1 protein | Quantifying chemokine production in supernatants |
| Western blot | Intracellular CXCL1 and signaling proteins | Confirming protein-level changes |
| Chemotaxis assay | Neutrophil migration toward CXCL1 | Functional validation of CXCL1 production |
| Phospho-antibody arrays | Activation of JAK1-STAT3, PI3K/Akt, NF-kB | Mapping upstream signaling |
| Immunohistochemistry | CXCL1 localization in tissues | Assessing spatial expression in disease models |
Transcriptional profiling of CXCL1 regulation
RNA-seq and qPCR can measure CXCL1 mRNA levels after genetic or pharmacological perturbation of candidate regulators such as RIPK1, STAT3, or USP1. These methods identify whether positive regulation occurs at the transcriptional level.
Protein-level quantification of CXCL1
ELISA and Western blotting quantify secreted and intracellular CXCL1 protein, providing direct evidence of increased production. These assays are essential for confirming that changes in mRNA translate to protein output.
Functional neutrophil recruitment assays
Chemotaxis assays and in vivo neutrophil recruitment models measure the functional consequence of CXCL1 production. Such experiments link positive regulation to biological outcomes.
Signaling pathway analysis
Phospho-specific antibodies and kinase inhibitors are used to dissect JAK1-STAT3, PI3K/Akt, and NF-kB signaling in the context of CXCL1 regulation. These approaches identify upstream nodes that can be targeted.
How CRISPR Can Be Used to Study GO:2000340 positive regulation of chemokine (C-X-C motif) ligand 1 production
Knockout
CRISPR knockout of candidate positive regulators such as RIPK1, STAT3, or USP1 can determine whether they are required for CXCL1 production. For example, Ripk1 knockout in sepsis models reduces CXCL1-mediated neutrophil recruitment, and Usp1 knockout attenuates hepatic fibrosis and CXCL1 expression.
Point Mutation
Point mutations can be introduced to dissect specific phosphorylation sites or catalytic residues. For instance, kinase-dead mutations in RIPK1 or JAK1 can test whether kinase activity is required for CXCL1 positive regulation. Such models provide mechanistic insight beyond simple knockout.
Knock-in
Knock-in of reporter tags or epitope tags at the CXCL1 locus allows real-time monitoring of CXCL1 production. Tagged knock-in models can be used to track CXCL1 secretion and localization in inflammatory tissues.
Overexpression
CRISPR activation or cDNA overexpression of candidate genes such as CXCL1, SNAIL, or constitutively active STAT3 can test sufficiency for increasing CXCL1 production. Overexpression models are useful for gain-of-function studies in cancer and fibrosis.
How EDITGENE Supports positive regulation of chemokine (C-X-C motif) ligand 1 production Research
Researchers studying positive regulation of chemokine (C-X-C motif) ligand 1 production-related genes often need to determine whether a candidate gene is causally involved in CXCL1 upregulation or is merely correlated with it. CRISPR-based models provide the gold-standard approach for establishing causality, and EDITGENE offers a comprehensive suite of services to accelerate this work.
Contact EDITGENE today to design your custom CRISPR model for positive regulation of chemokine (C-X-C motif) ligand 1 production research.
Frequently Asked Questions About positive regulation of chemokine (C-X-C motif) ligand 1 production
What is GO:2000340?
GO:2000340 is the Gene Ontology term for positive regulation of chemokine (C-X-C motif) ligand 1 production, describing any process that increases the frequency, rate or extent of CXCL1 production.
What genes are involved in positive regulation of CXCL1 production?
Key genes include RIPK1, JAK1, STAT3, NF-kB, PI3K, Akt, USP1, SNAIL, NLRP12, IL-17A, and HMGB1.
How is CXCL1 production positively regulated in sepsis?
In sepsis-induced lung injury, RIPK1 drives JAK1-STAT3 signaling to promote CXCL1-mediated neutrophil recruitment.
What diseases are associated with CXCL1 overproduction?
CXCL1 overproduction is associated with sepsis-induced lung injury, liver cancer, hepatic fibrosis, kidney allograft rejection, psoriasis-like inflammation, and vitiligo.
How can CRISPR be used to study CXCL1 regulation?
CRISPR knockout, point mutation, knock-in, and overexpression models can test whether candidate genes are required or sufficient for CXCL1 production.
What is the role of USP1 in CXCL1 regulation?
USP1 promotes hepatic fibrosis through positive regulation of CXCL1 by deubiquitinating SNAIL.
Does CXCL1 promote cancer cell migration?
Yes, in liver cancer CXCL1 induces cell migration by upregulating ICAM-1 through PI3K/Akt and NF-kB signaling.
What is the NLRP12-IL-17A-CXCL1 axis?
NLRP12 modulates host defense through an IL-17A-CXCL1 axis, linking innate immune sensing to CXCL1 production.
How is CXCL1 measured in experiments?
CXCL1 is commonly measured by ELISA, qPCR, Western blot, and chemotaxis assays.
What model systems are used to study CXCL1 positive regulation?
Common models include sepsis mouse models, liver fibrosis models, hepatoma cell lines, and melanocyte oxidative stress models.
Conclusion
GO:2000340, positive regulation of chemokine (C-X-C motif) ligand 1 production, is a biologically important process that integrates inflammatory signaling, transcriptional activation, and post-translational control to elevate CXCL1 output. Its dysregulation contributes to sepsis-induced lung injury, liver cancer, fibrosis, and skin inflammation. CRISPR-based models are powerful tools for dissecting the causal roles of upstream regulators, and EDITGENE provides end-to-end services to support such research.
References
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- 2. Chen YH et al.. 2025. C-X-C Motif Ligand 1 Induces Cell Migration by Upregulating ICAM-1 Expression by Activating PI3K/Akt and NF-κB Signaling Pathway in Liver Cancer.. Adv Biol (Weinh) 9(3):e2400295 PMID: 40016871
- 3. Chen Z et al.. 2023. Neuroprotection by Preconditioning in Mice is Dependent on MyD88-Mediated CXCL10 Expression in Endothelial Cells.. ASN Neuro 15:17590914221146365 PMID: 36591943
- 4. Krupickova L et al.. 2021. Chemokine Profiles Are Affected in Serum of Patients with Acute Rejection of Kidney Allograft.. Mediators Inflamm 2021:5513690 PMID: 33776571
- 5. Du Z et al.. 2022. Ubiquitin specific peptidase 1 promotes hepatic fibrosis through positive regulation of CXCL1 by deubiquitinating SNAIL.. Dig Liver Dis 54(1):91-102 PMID: 33926817
- 6. Charitidis FT et al.. 2021. Psoriasis-like Inflammation Induced in an Air-pouch Mouse Model.. In Vivo 35(4):1985-1997 PMID: 34182473
- 7. Cai S et al.. 2016. NLRP12 modulates host defense through IL-17A-CXCL1 axis.. Mucosal Immunol 9(2):503-14 PMID: 26349659
- 8. Cui T et al.. 2019. Oxidative Stress-Induced HMGB1 Release from Melanocytes: A Paracrine Mechanism Underlying the Cutaneous Inflammation in Vitiligo.. J Invest Dermatol 139(10):2174-2184.e4 PMID: 30998983
