GO:0061044 negative regulation of vascular wound healing: Mechanisms, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0061044 (negative regulation of vascular wound healing) is a biological process that decreases the rate, frequency, or extent of new blood vessel formation from pre-existing vessels during restoration of damaged vasculature.
• It acts as a brake on angiogenesis and lymphangiogenesis, balancing pro- and anti-angiogenic signals in wound repair.
• Key molecular players include FAP, KLF15, VASN, Notch1, BNP, and catecholamine signaling components.
• Dysregulation contributes to impaired wound healing, cardiac remodeling, and tumor progression.
• CRISPR knockout, point-mutation, knock-in, and overexpression models enable causal testing of candidate regulators.
• The term is studied using endothelial tube formation, sprouting assays, and in vivo wound models combined with transcriptomics and proteomics.
Description
GO:0061044, negative regulation of vascular wound healing, is a Gene Ontology biological process that describes any mechanism that decreases the rate, frequency, or extent of blood vessel formation when new vessels emerge from pre-existing vessels and contribute to restoring integrity to damaged vasculature. This term captures the endogenous brakes that prevent excessive or disorganized angiogenesis during tissue repair, a balance essential for normal wound healing and for limiting pathological neovascularization. Researchers study this process to understand why some wounds fail to heal, why cardiac tissue remodels after injury, and how tumors co-opt vascular repair programs. The process intersects with lymphangiogenesis, arteriogenesis, and catecholamine-mediated angiogenic control, making it a hub for cardiovascular, dermatological, and oncological investigation. Because the term is defined by its negative regulatory outcome, experimental work focuses on identifying the specific genes and signals that suppress endothelial sprouting, proliferation, and vessel maturation.
negative regulation of vascular wound healing At A Glance
| GO ID | GO:0061044 |
|---|---|
| GO term | negative regulation of vascular wound healing |
| Ontology | biological_process |
| Synonym | None |
| Definition | Any process that decreases the rate, frequency, or extent of blood vessel formation when new vessels emerge from the proliferation of pre-existing blood vessels and contribute to the series of events that restore integrity to damaged vasculature. |
| Major function | Suppression of angiogenesis and vascular repair to prevent excessive or disorganized vessel growth. |
| Related processes | Angiogenesis, arteriogenesis, lymphangiogenesis, wound healing, cardiac repair. |
| Key regulators | FAP, KLF15, VASN, Notch1, BNP, catecholamines. |
| Disease relevance | Impaired wound healing, cardiac remodeling, tumor angiogenesis. |
What Is GO:0061044?
In our own words, GO:0061044 refers to any biological process that reduces the rate, frequency, or extent of vascular wound healing. Vascular wound healing here means the formation of new blood vessels from pre-existing vessels (angiogenesis) that contributes to restoring the integrity of damaged vasculature. Negative regulation therefore includes molecular signals that inhibit endothelial cell activation, sprouting, proliferation, or vessel stabilization during repair. The term is a biological process and has no synonyms in QuickGO.
Why Is negative regulation of vascular wound healing Important in Cell Biology?
Understanding negative regulation of vascular wound healing is critical because an imbalance between pro-angiogenic and anti-angiogenic signals underlies numerous pathologies. Excessive or insufficient vascular repair contributes to chronic wounds, cardiac fibrosis, and tumor progression. The process also informs therapeutic strategies aimed at either promoting revascularization after ischemia or inhibiting pathological neovascularization in cancer and ocular diseases.
• Maintains vascular homeostasis by preventing excessive angiogenesis during wound repair.
• Impacts cardiac repair after myocardial infarction through regulators such as FAP and BNP.
• Modulates lymphangiogenesis, affecting fluid balance and immune cell trafficking.
• Influences cutaneous wound healing via catecholamine signaling.
• Contributes to tumor microenvironment remodeling by limiting or permitting neovascularization.
• Provides targets for anti-angiogenic therapy in cancer and pro-angiogenic therapy in ischemic disease.
• Involved in autophagy-related skin wound healing pathways.
• Relevant to estrogen-deficient skin and menopause-associated vascular changes.
• Serves as a model for studying endothelial cell signaling and Notch pathway regulation.
• Guides development of CRISPR-based models for causal gene validation.
What Happens During negative regulation of vascular wound healing?
Initiation of vascular injury and repair signals
In simple terms: When blood vessels are damaged, the body sends signals to start repair, including new vessel growth.
Vascular wound healing begins with injury to endothelial and surrounding cells, triggering release of pro-angiogenic factors such as VEGF and cytokines. This initial phase sets the stage for negative regulators that later dampen the response.
Activation of anti-angiogenic regulators
In simple terms: Specific molecules act as brakes to slow down new vessel formation.
Proteins such as FAP, KLF15, and VASN are induced or activated to suppress endothelial sprouting and proliferation. For example, the endothelial KLF15/VASN axis inhibits angiogenesis via Notch1 signaling.
Suppression of endothelial sprouting and proliferation
In simple terms: The brakes prevent endothelial cells from multiplying and forming new tubes.
Negative regulators reduce endothelial cell migration, proliferation, and tube formation, limiting the extent of neovascularization. Catecholamines can modulate angiogenesis in cutaneous wound healing, often acting as inhibitory signals depending on context.
Modulation of lymphangiogenesis
In simple terms: The same brakes can also affect lymphatic vessel growth.
Cytokines that regulate lymphangiogenesis can negatively influence vascular wound healing by altering lymphatic endothelial cell behavior. This cross-talk ensures coordinated repair of blood and lymphatic vasculature.
Resolution and stabilization of repaired vasculature
In simple terms: Once repair is sufficient, the brakes help stabilize the new vessels and stop further growth.
Negative regulation promotes vessel maturation and prevents excessive permeability or disorganized networks. Autophagy pathways may contribute to resolution by clearing damaged components during skin wound healing.
Key Genes Involved in GO:0061044 negative regulation of vascular wound healing
The following genes and proteins have been experimentally linked to negative regulation of vascular wound healing or related angiogenic processes.
| Gene | Major Role | Research Relevance |
|---|---|---|
| FAP | Inhibits cardiac repair by stabilizing BNP; negative regulator of angiogenesis | Cardiac repair models; FAP knockout mice |
| KLF15 | Endothelial transcription factor that inhibits angiogenesis via Notch1 | Endothelial-specific knockout; tube formation assays |
| VASN | Secreted protein downstream of KLF15; activates Notch1 to suppress angiogenesis | Overexpression and knockdown in endothelial cells |
| Notch1 | Signaling receptor mediating anti-angiogenic effects | Notch1 knockout; pharmacological inhibition |
| BNP | Cardiac hormone stabilized by FAP; involved in repair | BNP knockout; cardiac injury models |
| Catecholamines | Modulate angiogenesis in cutaneous wound healing | Chemical sympathectomy; receptor agonists/antagonists |
| VEGF | Pro-angiogenic factor counteracted by negative regulators | VEGF overexpression; neutralizing antibodies |
| Autophagy-related genes | Contribute to skin wound healing resolution | ATG knockout; autophagy inhibitors |
| Cytokines (lymphangiogenesis) | Regulate lymphatic vessel growth | Cytokine knockout; lymphangiogenesis assays |
| Estrogen receptors | Modulate skin and vascular aging | Ovariectomy models; estrogen replacement |
| Primary atopic disorder genes | May affect vascular components in rare diseases | Genomic sequencing in PAD |
| Arteriogenesis regulators | Balance angiogenesis versus arteriogenesis | Arteriogenesis models; shear stress |
| Endothelial nitric oxide synthase (eNOS) | Modulates vascular tone and repair | eNOS knockout; wound healing assays |
| Matrix metalloproteinases (MMPs) | Remodel extracellular matrix during repair | MMP inhibitors; knockout models |
| Tie2/Angiopoietin | Stabilize vessels; can be negatively regulated | Tie2 knockout; angiopoietin treatment |
| PDGF | Recruits pericytes; modulated by negative signals | PDGF overexpression; receptor blockade |
| HIF-1alpha | Regulates hypoxia-driven angiogenesis | HIF-1alpha knockout; hypoxia models |
| TGF-beta | Can inhibit endothelial proliferation | TGF-beta treatment; receptor knockout |
How Is negative regulation of vascular wound healing Regulated?
Negative regulation of vascular wound healing is controlled by a network of transcriptional, post-transcriptional, and signaling mechanisms. The endothelial KLF15/VASN axis activates Notch1 signaling to inhibit angiogenesis. FAP stabilizes BNP, which in turn suppresses cardiac repair processes. Catecholamines provide context-dependent modulation of angiogenesis in cutaneous wound healing. Cytokines regulate lymphangiogenesis and can indirectly dampen vascular repair. Autophagy pathways contribute to resolution of skin wound healing. Estrogen deficiency alters skin and vascular homeostasis, affecting repair capacity.
negative regulation of vascular wound healing and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| FAP | Cardiac remodeling, heart failure | FAP knockout mice; myocardial infarction model |
| KLF15 | Angiogenesis-related pathologies | Endothelial-specific KLF15 knockout; tumor xenografts |
| VASN | Vascular repair disorders | VASN overexpression; Notch1 reporter assays |
| BNP | Heart failure | BNP knockout; pressure overload |
| Catecholamine receptors | Chronic wounds | Receptor knockout; skin wound models |
Cardiac remodeling and heart failure
FAP inhibits cardiac repair by stabilizing BNP, and its dysregulation contributes to adverse remodeling after myocardial infarction. Targeting this pathway may improve cardiac regeneration.
Impaired wound healing and skin disorders
Catecholamines regulate angiogenesis in cutaneous wound healing, and their imbalance can lead to chronic wounds. Autophagy defects also impair skin wound healing. Estrogen-deficient skin shows altered vascular repair.
Cancer and tumor angiogenesis
Negative regulators of vascular wound healing can suppress tumor neovascularization; their loss may promote tumor growth. KLF15/VASN axis activation inhibits angiogenesis, suggesting tumor suppressor-like roles.
Lymphedema and lymphatic disorders
Cytokines regulating lymphangiogenesis influence vascular wound healing; their dysregulation can cause lymphedema.
From negative regulation of vascular wound healing-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Is FAP causally involved in cardiac repair? | FAP knockout mouse |
| Does KLF15 inhibit angiogenesis via Notch1? | Endothelial KLF15 knockout; Notch1 inhibitor |
| Can VASN overexpression suppress tumor angiogenesis? | VASN knock-in; tumor xenograft |
| What is the role of BNP stabilization? | BNP point-mutation knock-in |
| How do catecholamines affect wound healing? | Catecholamine receptor knockout |
| Does autophagy modulate skin wound healing? | ATG knockout; autophagy inhibitors |
How to Study the negative regulation of vascular wound healing Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Gene expression changes | Identify negative regulators in endothelial cells |
| Proteomics | Protein abundance and interactions | Detect VASN, BNP, FAP |
| Tube formation assay | Endothelial network formation | Test anti-angiogenic factors |
| Aortic ring sprouting | Ex vivo angiogenesis | Evaluate KLF15/VASN axis |
| Skin wound model | Wound closure and vascular density | Study catecholamines and autophagy |
| Myocardial infarction model | Cardiac repair and function | Assess FAP and BNP roles |
| Immunohistochemistry | Vessel density and marker expression | Quantify angiogenesis in tissues |
| Lymphangiogenesis assay | Lymphatic vessel growth | Study cytokine effects |
Transcriptomic profiling
RNA-seq of endothelial cells or wound tissue identifies genes differentially expressed during negative regulation of vascular wound healing.
Proteomic and secretome analysis
Mass spectrometry detects proteins such as VASN and BNP, revealing secreted factors that inhibit angiogenesis.
Functional angiogenesis assays
Tube formation, spheroid sprouting, and aortic ring assays measure the impact of candidate genes on endothelial sprouting.
In vivo wound healing models
Skin punch biopsy and myocardial infarction models assess vascular repair and the effect of gene knockouts.
How CRISPR Can Be Used to Study GO:0061044 negative regulation of vascular wound healing
Knockout
CRISPR knockout of FAP, KLF15, VASN, or Notch1 in endothelial cells or mice enables loss-of-function studies to test their causal role in negative regulation of vascular wound healing.
Point Mutation
Introducing point mutations in BNP or Notch1 can dissect specific phosphorylation or cleavage sites required for anti-angiogenic signaling.
Knock-in
Knock-in of tagged VASN or KLF15 allows tracking of protein localization and interaction partners in vascular repair.
Overexpression
Overexpression of KLF15 or VASN in endothelial cells suppresses angiogenesis, validating their negative regulatory function.
How EDITGENE Supports negative regulation of vascular wound healing Research
Researchers studying negative regulation of vascular wound healing-related genes often need to determine whether a candidate gene is causally involved in suppressing angiogenesis or whether it is merely a bystander. EDITGENE provides validated CRISPR models to accelerate this causal testing.
Contact EDITGENE today to design your custom CRISPR model for negative regulation of vascular wound healing research.
Frequently Asked Questions About negative regulation of vascular wound healing
What is GO:0061044?
GO:0061044 is the Gene Ontology term for negative regulation of vascular wound healing, a biological process that decreases the rate, frequency, or extent of new blood vessel formation during restoration of damaged vasculature.
What genes are involved in negative regulation of vascular wound healing?
Key genes include FAP, KLF15, VASN, Notch1, BNP, and catecholamine signaling components.
How does KLF15 inhibit angiogenesis?
KLF15 activates VASN, which in turn activates Notch1 signaling to suppress endothelial sprouting and proliferation.
What is the role of FAP in cardiac repair?
FAP inhibits cardiac repair by stabilizing BNP, acting as a negative regulator of vascular wound healing in the heart.
Can catecholamines affect wound healing?
Yes, catecholamines regulate angiogenesis in cutaneous wound healing and can modulate the negative regulation of vascular repair.
What diseases are linked to defective negative regulation of vascular wound healing?
Impaired wound healing, cardiac remodeling, tumor angiogenesis, and lymphedema have been associated with dysregulation of this process.
How can CRISPR be used to study GO:0061044?
CRISPR knockout, point mutation, knock-in, and overexpression models allow causal testing of candidate genes in endothelial cells and animal models.
What assays measure negative regulation of vascular wound healing?
Tube formation, spheroid sprouting, aortic ring, and in vivo wound healing models are commonly used.
Is autophagy involved in vascular wound healing?
Autophagy contributes to skin wound healing resolution and may interact with negative regulatory pathways.
What is the role of lymphangiogenesis in vascular wound healing?
Cytokines regulating lymphangiogenesis can influence vascular repair, and their dysregulation may impair healing.
Conclusion
GO:0061044, negative regulation of vascular wound healing, represents a critical braking mechanism in vascular biology. Its molecular players, including FAP, KLF15, VASN, and Notch1, offer promising targets for therapeutic modulation in cardiac disease, chronic wounds, and cancer. Continued research using CRISPR models and multi-omics will further elucidate how these negative regulators can be harnessed for clinical benefit.
References
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