GO:0002673 regulation of acute inflammatory response: Mechanism, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0002673 (regulation of acute inflammatory response) is a biological process that modulates the frequency, rate, or extent of the acute inflammatory response, a rapid innate immune reaction to tissue injury or infection.
• The acute inflammatory response is tightly controlled by endogenous regulators that prevent excessive tissue damage while ensuring pathogen clearance.
• Key regulatory mechanisms include metabolic reprogramming, such as glycogen metabolism in macrophages, which influences the intensity of acute inflammation.
• Neuronal circuits, including somatosensory and autonomic neurons, actively regulate immune responses and acute inflammation.
• Dysregulation of acute inflammatory response regulation contributes to diseases such as post-acute COVID-19 syndrome, cardiorenal syndrome, and chronic inflammatory conditions.
• CRISPR-based models (knockout, point mutation, knock-in, overexpression) enable causal dissection of genes controlling acute inflammatory response regulation.
Description
The acute inflammatory response is a rapid, self-limited innate immune reaction that protects the host against infection and injury but can cause collateral tissue damage if not properly controlled. The biological process termed regulation of acute inflammatory response (GO:0002673) encompasses any process that modulates the frequency, rate, or extent of this response. This regulation is essential for restoring homeostasis and preventing chronic inflammation or autoimmunity. Researchers study GO:0002673 to understand how the body balances pro- and anti-inflammatory signals, and how disruption of these checks contributes to human disease. Recent evidence shows that acute inflammatory responses are regulated by diverse mechanisms, including metabolic pathways in immune cells, neuronal inputs, and endogenous anti-inflammatory mediators. For example, glycogen metabolism in macrophages directly influences the magnitude of acute inflammation, while somatosensory and autonomic neurons provide neural control of immune responses. Post-acute COVID-19 syndrome has been linked to persistent dysregulation of inflammatory responses, highlighting the clinical importance of this process. Similarly, cardiorenal syndrome involves maladaptive inflammatory regulation that exacerbates organ damage. Understanding GO:0002673 at the molecular level is therefore critical for developing therapies that modulate inflammation without compromising host defense.
regulation of acute inflammatory response At A Glance
| GO ID | GO:0002673 |
|---|---|
| GO term | regulation of acute inflammatory response |
| Ontology | biological_process |
| Synonym | none |
| Major function | Modulates the frequency, rate, or extent of the acute inflammatory response |
| Definition source | QuickGO |
| Related processes | Acute inflammatory response, innate immune response, cytokine production |
| Key regulators | Endogenous anti-inflammatory mediators, metabolic enzymes, neuronal signals |
| Disease relevance | Post-acute COVID-19 syndrome, cardiorenal syndrome, chronic inflammation |
What Is GO:0002673?
GO:0002673, regulation of acute inflammatory response, is defined as any process that modulates the frequency, rate, or extent of an acute inflammatory response. In other words, it includes all molecular and cellular events that control how quickly, how strongly, and for how long the acute inflammatory response occurs. This regulation can be positive (enhancing inflammation) or negative (suppressing or resolving inflammation), and it operates at multiple levels, from receptor signaling to metabolic rewiring and neural control.
Why Is regulation of acute inflammatory response Important in Cell Biology?
Regulation of acute inflammatory response (GO:0002673) is critically important because uncontrolled acute inflammation can lead to tissue damage, organ failure, and chronic inflammatory diseases, while insufficient inflammation impairs pathogen clearance. Understanding the endogenous regulators of this process provides therapeutic targets for conditions ranging from sepsis to post-viral syndromes. Moreover, the interplay between metabolism, neural circuits, and immune cells in regulating acute inflammation is a rapidly growing research area with broad implications for human health.
• Prevents excessive tissue damage during infection or injury by limiting the intensity and duration of inflammation.
• Enables resolution of inflammation and return to homeostasis.
• Dysregulation contributes to post-acute COVID-19 syndrome and other chronic inflammatory conditions.
• Maladaptive regulation is involved in cardiorenal syndrome and cardiovascular complications.
• Metabolic control of acute inflammation, such as via glycogen metabolism, offers new therapeutic angles.
• Neuronal regulation of immune responses links the nervous system to inflammatory control.
• Endogenous regulators of acute inflammation are potential drug targets for anti-inflammatory therapies.
• Understanding regulation is essential for vaccine design and immunotherapy.
• Provides a framework for studying gene function in innate immunity using CRISPR screens.
• Helps explain inter-individual variability in inflammatory diseases and treatment responses.
What Happens During regulation of acute inflammatory response?
Initiation and sensing of inflammatory triggers
In simple terms: The body detects danger signals and starts the inflammatory response.
The acute inflammatory response is initiated when pattern recognition receptors on innate immune cells detect pathogens or tissue damage. This triggers signaling cascades that activate transcription factors such as NF-kB, leading to production of pro-inflammatory cytokines and chemokines. Regulation at this stage determines whether the response is appropriately scaled to the threat. Endogenous regulators can dampen or amplify these initial signals to prevent overshooting.
Metabolic reprogramming of immune cells
In simple terms: Immune cells change how they use energy to control inflammation.
Macrophages and other innate immune cells undergo metabolic shifts during acute inflammation, such as increased glycolysis and altered glycogen metabolism. Glycogen metabolism specifically regulates macrophage-mediated acute inflammatory responses, and its manipulation can alter the intensity of inflammation. This metabolic control represents a key node in GO:0002673, linking cellular energy status to inflammatory output.
Neuronal regulation of inflammation
In simple terms: Nerves can turn inflammation up or down.
Somatosensory and autonomic neurons actively regulate immune responses, including acute inflammation. Neural signals can modulate cytokine production and immune cell activity in tissues, providing a systemic layer of control over GO:0002673. This neuro-immune crosstalk is essential for coordinating local and systemic inflammatory responses.
Endogenous anti-inflammatory mediators
In simple terms: The body produces its own anti-inflammatory molecules to stop inflammation.
Endogenous regulation of the acute inflammatory response involves a variety of anti-inflammatory mediators, such as IL-10, resolvins, and other specialized pro-resolving mediators. These molecules act to limit the magnitude and duration of inflammation, preventing tissue damage. The balance between pro- and anti-inflammatory signals determines the outcome of the response.
Resolution and return to homeostasis
In simple terms: Inflammation is turned off and the tissue heals.
Resolution of acute inflammation is an active process that involves clearance of apoptotic neutrophils, switching of macrophage phenotypes, and tissue repair. Regulatory mechanisms ensure that inflammation does not persist, and failure of resolution can lead to chronic inflammatory diseases. This phase is integral to GO:0002673 and is a target for therapeutic intervention.
Role of supersulfides and GPR84 in fine-tuning
In simple terms: Specific molecules like supersulfides and GPR84 help adjust the inflammatory response.
Supersulfides regulate innate immune and inflammatory responses, acting as modulators of redox signaling and cytokine production. The pro-inflammatory G protein-coupled receptor GPR84 is also subject to regulation that affects acute inflammatory responses. These examples illustrate the diverse molecular players that fine-tune GO:0002673.
Key Genes Involved in GO:0002673 regulation of acute inflammatory response
The following genes and proteins are key players in the regulation of acute inflammatory response (GO:0002673), based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| IL10 | Anti-inflammatory cytokine that suppresses pro-inflammatory signaling | Knockout models show exacerbated acute inflammation |
| NFKB1 | Transcription factor driving pro-inflammatory gene expression | Point mutations can alter inflammatory intensity |
| GPR84 | Pro-inflammatory G protein-coupled receptor | Regulation of GPR84 modulates acute inflammation |
| PYGL | Glycogen phosphorylase, involved in glycogen metabolism | Regulates macrophage-mediated acute inflammation |
| GYS1 | Glycogen synthase, controls glycogen synthesis | Metabolic control of acute inflammatory responses |
| CBS | Cystathionine beta-synthase, involved in supersulfide production | Regulates innate immune and inflammatory responses |
| CSE | Cystathionine gamma-lyase, supersulfide synthesis | Modulates inflammatory signaling |
| TRPV1 | Somatosensory neuron ion channel | Neuronal regulation of immune responses |
| ADRB2 | Beta-2 adrenergic receptor on immune cells | Autonomic regulation of inflammation |
| CHRNA7 | Nicotinic acetylcholine receptor | Cholinergic anti-inflammatory pathway |
| TNF | Pro-inflammatory cytokine | Central mediator of acute inflammation |
| IL6 | Pro-inflammatory cytokine | Regulated during acute inflammatory response |
| IL1B | Pro-inflammatory cytokine | Key effector of acute inflammation |
| CXCL8 | Chemokine recruiting neutrophils | Regulated during acute inflammation |
| NFKBIA | Inhibitor of NF-kB | Negative regulator of acute inflammation |
| SOCS3 | Suppressor of cytokine signaling | Dampens inflammatory signaling |
| ARG1 | Arginase 1, involved in macrophage polarization | Resolution of acute inflammation |
How Is regulation of acute inflammatory response Regulated?
The regulation of acute inflammatory response (GO:0002673) is itself subject to multiple layers of control. Endogenous mediators such as IL-10 and resolvins provide negative feedback to limit inflammation. Metabolic pathways, including glycogen metabolism, directly influence the inflammatory capacity of macrophages. Neuronal inputs from somatosensory and autonomic nerves can either enhance or suppress inflammation depending on the context. Additionally, supersulfides and GPR84 signaling modulate the intensity of innate immune responses. These regulatory mechanisms ensure that acute inflammation is appropriately scaled and resolved, and their dysfunction contributes to disease.
regulation of acute inflammatory response and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| IL10 | Inflammatory bowel disease, autoimmunity | IL10 knockout mice; CRISPR KO in macrophages |
| GPR84 | Chronic inflammation, fibrosis | GPR84 point-mutation knock-in mice; overexpression in cell lines |
| PYGL | Metabolic-inflammatory crosstalk | PYGL knockout macrophages; glycogen metabolism assays |
| CBS | Endothelial dysfunction, inflammation | CBS knockout mice; supersulfide measurement |
| NFKB1 | Autoinflammatory diseases | NFKB1 point mutations; NF-kB reporter cells |
Post-acute COVID-19 syndrome
Post-acute COVID-19 syndrome, also known as long COVID, is characterized by persistent symptoms that often involve dysregulated inflammatory responses. Patients may exhibit ongoing immune activation and inflammation long after the acute infection resolves. The regulation of acute inflammatory response (GO:0002673) is thought to be disrupted in this condition, contributing to multi-organ symptoms. Understanding how acute inflammation fails to resolve properly could lead to targeted therapies for long COVID.
Cardiorenal syndrome
Cardiorenal syndrome involves bidirectional dysfunction between the heart and kidneys, in which maladaptive inflammatory responses play a key role. Dysregulation of acute inflammatory response regulation can exacerbate organ damage and fibrosis. The American Heart Association has highlighted the importance of inflammatory mechanisms in the pathophysiology of cardiorenal syndrome. Targeting regulators of GO:0002673 may offer new therapeutic strategies.
Chronic inflammatory and autoimmune diseases
Failure to properly regulate acute inflammation can lead to chronic inflammatory diseases such as rheumatoid arthritis, inflammatory bowel disease, and atherosclerosis. Endogenous regulators of GO:0002673, including anti-inflammatory cytokines and metabolic checkpoints, are often impaired in these conditions. Research into the molecular players of acute inflammatory regulation is therefore directly relevant to understanding and treating chronic inflammatory disorders.
From regulation of acute inflammatory response-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does loss of a candidate gene enhance or suppress acute inflammation? | CRISPR knockout in macrophage cell lines or primary cells |
| Does a specific point mutation in an inflammatory regulator alter its function? | CRISPR point mutation (base editing or HDR) in cell lines |
| Does overexpression of an anti-inflammatory gene reduce inflammation? | CRISPR knock-in of a constitutive promoter or lentiviral overexpression |
| How does a tagged version of a regulatory protein behave in live cells? | CRISPR knock-in of fluorescent or epitope tags |
| Which genes regulate acute inflammation in a genome-wide manner? | CRISPR library screening in macrophage models |
| What are the transcriptomic changes during acute inflammation regulation? | RNA-seq after CRISPR perturbation |
How to Study the regulation of acute inflammatory response Process
| Method | What It Measures | Typical Application |
|---|---|---|
| CRISPR knockout | Loss-of-function effects on acute inflammation | Identify essential regulators |
| Base editing / HDR | Specific point mutations | Model disease-associated variants |
| RNA-seq | Transcriptional changes | Global profiling of inflammatory responses |
| Proteomics | Protein abundance and modifications | Identify post-translational regulation |
| Seahorse assay | Glycolysis and oxidative phosphorylation | Metabolic control of inflammation |
| Glycogen assay | Glycogen content | Link glycogen metabolism to inflammation |
| Live-cell imaging | Dynamic signaling events | Real-time NF-kB activation |
| CRISPR library screen | Genome-wide regulators | Discover new genes in GO:0002673 |
CRISPR knockout and point mutation
CRISPR-Cas9 knockout is widely used to delete candidate genes involved in GO:0002673 and assess their impact on acute inflammatory responses. Point mutations can be introduced via base editing or homology-directed repair to model specific variants. These approaches allow causal testing of gene function in inflammation.
Transcriptomic and proteomic profiling
RNA-seq and proteomics can reveal global changes in gene expression and protein abundance during acute inflammation and its regulation. These methods help identify novel regulators and pathways. Integration with CRISPR screens can pinpoint key drivers.
Metabolic assays
Metabolic assays, such as Seahorse extracellular flux analysis and glycogen measurement, are used to study the metabolic regulation of acute inflammation. Glycogen metabolism in macrophages is a key example. These assays link cellular metabolism to inflammatory output.
Imaging and reporter systems
Live-cell imaging and reporter systems (e.g., NF-kB-GFP) allow real-time monitoring of inflammatory signaling. Neuronal regulation can be studied using co-culture systems with sensory neurons. These methods provide spatial and temporal resolution of GO:0002673.
How CRISPR Can Be Used to Study GO:0002673 regulation of acute inflammatory response
Knockout
CRISPR knockout of candidate genes is used to determine whether they are required for the regulation of acute inflammatory response. For example, knocking out PYGL or GYS1 can reveal their roles in macrophage-mediated inflammation. Knockout models are essential for loss-of-function studies in GO:0002673.
Point Mutation
Point mutations can be introduced to model specific amino acid changes in inflammatory regulators, such as those in GPR84 or NFKB1. These models help dissect the precise molecular mechanisms by which mutations alter protein function. Base editing enables precise point mutations without double-strand breaks.
Knock-in
Knock-in of reporter genes, tags, or human disease alleles allows tracking of protein localization and function in live cells. For instance, knocking in a fluorescent tag on a key regulator can reveal its dynamics during acute inflammation. Knock-in models are valuable for studying gene regulation and interactions.
Overexpression
Overexpression of anti-inflammatory or pro-resolving genes can suppress acute inflammation, while overexpression of pro-inflammatory genes can exacerbate it. CRISPR activation (CRISPRa) or lentiviral overexpression are common approaches. These models help establish sufficiency in GO:0002673.
How EDITGENE Supports regulation of acute inflammatory response Research
Researchers studying regulation of acute inflammatory response-related genes often need to determine whether a candidate gene is causally involved in modulating inflammation, and what specific mutations or expression changes contribute to disease. EDITGENE provides a comprehensive suite of CRISPR-based services to accelerate this research, from knockout and point mutation to knock-in, overexpression, and high-throughput library screening.
Contact EDITGENE today to design your custom CRISPR model for regulation of acute inflammatory response research.
Frequently Asked Questions About regulation of acute inflammatory response
What is GO:0002673?
GO:0002673 is the Gene Ontology term for regulation of acute inflammatory response, defined as any process that modulates the frequency, rate, or extent of an acute inflammatory response.
What genes are involved in regulation of acute inflammatory response?
Key genes include IL10, NFKB1, GPR84, PYGL, GYS1, CBS, CSE, TRPV1, ADRB2, and others involved in immune and metabolic regulation.
How is acute inflammatory response regulated?
It is regulated by endogenous anti-inflammatory mediators, metabolic pathways such as glycogen metabolism, neuronal inputs, and specific receptors like GPR84.
What diseases are associated with dysregulation of acute inflammatory response?
Post-acute COVID-19 syndrome, cardiorenal syndrome, and chronic inflammatory diseases are associated with dysregulated acute inflammatory responses.
What is the role of glycogen metabolism in acute inflammation?
Glycogen metabolism in macrophages regulates the intensity of acute inflammatory responses, and its manipulation can alter inflammation.
How do neurons regulate acute inflammation?
Somatosensory and autonomic neurons can modulate immune cell activity and cytokine production, providing neural control of acute inflammation.
What are supersulfides and how do they affect inflammation?
Supersulfides are sulfur-containing molecules that regulate innate immune and inflammatory responses by modulating redox signaling.
What is GPR84 and its role in inflammation?
GPR84 is a pro-inflammatory G protein-coupled receptor whose regulation affects acute inflammatory responses.
How can CRISPR be used to study regulation of acute inflammatory response?
CRISPR knockout, point mutation, knock-in, and overexpression models allow causal testing of genes in acute inflammation.
What experimental models are used to study GO:0002673?
Macrophage cell lines, primary immune cells, and animal models with CRISPR modifications are commonly used.
Conclusion
Regulation of acute inflammatory response (GO:0002673) is a fundamental biological process that controls the intensity and duration of innate immune reactions. Its dysregulation underlies a wide range of human diseases, from post-acute COVID-19 syndrome to cardiorenal syndrome and chronic inflammation. Advances in CRISPR-based models and multi-omics approaches are rapidly expanding our understanding of the molecular players involved, including metabolic enzymes, neuronal signals, and specialized receptors. Continued research into GO:0002673 promises to yield new therapeutic strategies for inflammatory diseases.
References
- 1. Udit S et al.. 2022. Somatosensory and autonomic neuronal regulation of the immune response.. Nat Rev Neurosci 23(3):157-171 PMID: 34997214
- 2. Nalbandian A et al.. 2021. Post-acute COVID-19 syndrome.. Nat Med 27(4):601-615 PMID: 33753937
- 3. Rangaswami J et al.. 2019. Cardiorenal Syndrome: Classification, Pathophysiology, Diagnosis, and Treatment Strategies: A Scientific Statement From the American Heart Association.. Circulation 139(16):e840-e878 PMID: 30852913
- 4. Ward PA et al.. 2002. Endogenous regulation of the acute inflammatory response.. Mol Cell Biochem 234-235(1-2):225-8 PMID: 12162438
- 5. Ma J et al.. 2020. Glycogen metabolism regulates macrophage-mediated acute inflammatory responses.. Nat Commun 11(1):1769 PMID: 32286295
- 7. Marsango S et al.. 2024. Regulation of the pro-inflammatory G protein-coupled receptor GPR84.. Br J Pharmacol 181(10):1500-1508 PMID: 37085331
- 8. Tsutsuki H et al.. 2024. Regulation of innate immune and inflammatory responses by supersulfides.. Int Immunol 36(4):143-154 PMID: 38180817
