GO:2000352 negative regulation of endothelial cell apoptotic process: Apoptosis Protection, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:2000352 describes any biological process that stops, prevents, or reduces the frequency, rate, or extent of endothelial cell apoptosis.
• Endothelial cell apoptosis is a central driver of atherosclerosis, acute lung injury, and vascular remodeling, making its negative regulation a key therapeutic target.
• Key protective genes include SIRT6, RND3, MST1 (STK4), and non-coding RNAs such as circCHMP5 and lncRNA-ASLNC18810, which modulate apoptosis through distinct signaling axes.
• Mechanistically, negative regulation of endothelial apoptosis involves inhibition of caspase activation, stabilization of mitochondrial integrity, and suppression of pro-apoptotic kinase cascades.
• CRISPR-based knockout, knock-in, and overexpression models are essential to establish causality between candidate genes and endothelial cell survival.
• EDITGENE provides end-to-end CRISPR services, including library screening and bioinformatics, to accelerate discovery in vascular biology and apoptosis research.
Description
Endothelial cells form the inner lining of blood vessels and are critical for maintaining vascular homeostasis. Apoptosis of these cells contributes to the pathogenesis of numerous vascular disorders, including atherosclerosis, acute lung injury, and pulmonary arterial hypertension. The Gene Ontology term GO:2000352, negative regulation of endothelial cell apoptotic process, encompasses all molecular events that suppress or prevent endothelial cell death by apoptosis. Understanding this process is essential for identifying therapeutic targets that preserve endothelial integrity and vascular function. Recent studies have highlighted diverse regulators, from kinases like MST1 to non-coding RNAs and ubiquitin-modifying enzymes, that converge on apoptotic signaling pathways. This article synthesizes current knowledge on the mechanisms, key genes, and experimental models used to study GO:2000352, providing a research-grade resource for vascular biologists and drug discovery scientists.
negative regulation of endothelial cell apoptotic process At A Glance
| GO ID | GO:2000352 |
|---|---|
| GO term | negative regulation of endothelial cell apoptotic process |
| Ontology | biological_process |
| Synonym | negative regulation of endothelial cell apoptosis; negative regulation of apoptosis of endothelial cells; negative regulation of endothelial cell programmed cell death by apoptosis |
| Major function | Suppression of programmed cell death in endothelial cells to maintain vascular homeostasis |
| Related processes | Regulation of apoptotic signaling, caspase inhibition, mitochondrial stabilization, kinase signaling |
| Key regulators | SIRT6, RND3, MST1 (STK4), circCHMP5, lncRNA-ASLNC18810, DUSP8 |
| Disease relevance | Atherosclerosis, acute lung injury, pulmonary arterial hypertension, hypertension, glioblastoma vascularization |
What Is GO:2000352?
GO:2000352, negative regulation of endothelial cell apoptotic process, is defined as any process that stops, prevents, or reduces the frequency, rate, or extent of endothelial cell apoptotic process. This biological process includes signaling events that inhibit the intrinsic or extrinsic apoptotic pathways in endothelial cells, thereby promoting cell survival and vascular integrity.
Why Is negative regulation of endothelial cell apoptotic process Important in Cell Biology?
Dysregulated endothelial cell apoptosis is a hallmark of vascular pathology. Conditions such as atherosclerosis, acute lung injury, and pulmonary hypertension are characterized by excessive endothelial cell death, leading to barrier dysfunction, inflammation, and thrombosis. Therefore, understanding the negative regulation of endothelial cell apoptosis is critical for developing therapies that preserve endothelial viability and vascular function. Moreover, in cancer, endothelial cell apoptosis can be modulated to influence tumor angiogenesis, as seen in glioblastoma where DUSP8 regulates stem-like cell contribution to vascularization. Thus, GO:2000352 is a central node linking vascular biology, inflammation, and cancer.
• Maintains endothelial barrier integrity and prevents vascular leak in acute lung injury.
• Inhibits atherosclerotic plaque progression by reducing endothelial cell death.
• Modulates pulmonary arterial remodeling and hypertension.
• Influences tumor angiogenesis and glioblastoma vascularization.
• Provides therapeutic targets for cardiovascular and metabolic diseases.
• Involves non-coding RNAs as key regulators, expanding the landscape of apoptosis control.
• Serves as a model for studying crosstalk between apoptosis, pyroptosis, and autophagy.
• Guides development of CRISPR-based screens for vascular protective genes.
What Happens During negative regulation of endothelial cell apoptotic process?
Inhibition of intrinsic apoptotic signaling
In simple terms: The cell blocks its own self-destruction program by keeping mitochondria intact and preventing caspase activation.
Negative regulation of endothelial cell apoptosis often involves stabilization of mitochondrial outer membrane permeability and inhibition of cytochrome c release. For example, SIRT6 inhibits endothelial cell pyroptosis and apoptosis by regulating the Lin28b/let-7 pathway, which suppresses pro-apoptotic signals. Similarly, RND3 suppresses endothelial cell pyroptosis in atherosclerosis through regulation of TRAF6 ubiquitination, indirectly reducing apoptotic signaling.
Suppression of pro-apoptotic kinases
In simple terms: Certain enzymes that would normally trigger cell death are switched off or degraded.
MST1 (STK4) is a pro-apoptotic kinase; inhibiting endothelial cell MST1 attenuates acute lung injury in mice, demonstrating that negative regulation of MST1 activity protects endothelial cells from apoptosis. DUSP8, a dual-specificity phosphatase, regulates glioblastoma stem-like cell contribution to tumor vascularization, potentially by modulating stress kinase pathways that influence endothelial cell survival.
Non-coding RNA-mediated protection
In simple terms: Small RNA molecules act as sponges or decoys to prevent death signals from being translated.
CircCHMP5 contributes to ox-LDL-induced endothelial cell injury through regulation of the miR-532-5p/ROCK2 axis; its modulation affects endothelial apoptosis. LncRNA-ASLNC18810 functions as a microRNA sponge for miR-559, influencing abnormal endothelial cell function in atherosclerosis. These non-coding RNAs represent a layer of negative regulation that fine-tunes apoptotic gene expression.
Modulation of endoplasmic reticulum stress
In simple terms: The cell reduces stress in its protein-folding factory to avoid triggering death.
Berberine ameliorates vascular dysfunction by downregulating the TMAO-endoplasmic reticulum stress pathway via gut microbiota in hypertension, indirectly reducing endothelial apoptosis. This highlights that negative regulation of endothelial apoptosis can occur through systemic metabolic and stress-response pathways.
Regulation by microRNAs in pulmonary remodeling
In simple terms: MicroRNAs control gene expression to prevent excessive cell death in lung blood vessels.
MicroRNAs play critical roles in pulmonary arterial remodeling, where they regulate endothelial cell survival and apoptosis. Dysregulation of these microRNAs can tip the balance toward endothelial apoptosis, contributing to pulmonary hypertension.
Key Genes Involved in GO:2000352 negative regulation of endothelial cell apoptotic process
The following genes and non-coding RNAs have been experimentally implicated in the negative regulation of endothelial cell apoptotic process, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| MST1 (STK4) | Pro-apoptotic kinase; its inhibition protects endothelial cells | Target for acute lung injury therapy |
| RND3 | Suppresses endothelial pyroptosis via TRAF6 ubiquitination | Atherosclerosis protection |
| SIRT6 | Inhibits pyroptosis via Lin28b/let-7 pathway | Atherosclerosis and vascular inflammation |
| circCHMP5 | Regulates miR-532-5p/ROCK2 axis in ox-LDL injury | Atherosclerosis endothelial injury |
| DUSP8 | Phosphatase regulating tumor vascularization | Glioblastoma angiogenesis |
| miR-532-5p | Targeted by circCHMP5; modulates ROCK2 | Endothelial injury in atherosclerosis |
| ROCK2 | Kinase involved in endothelial dysfunction | Atherosclerosis |
| TRAF6 | Ubiquitination target of RND3 | Atherosclerosis |
| Lin28b | Regulated by SIRT6; affects let-7 | Atherosclerosis |
| let-7 | MicroRNA family downstream of Lin28b | Vascular inflammation |
| lncRNA-ASLNC18810 | Sponge for miR-559 | Atherosclerosis endothelial dysfunction |
| miR-559 | Target of lncRNA-ASLNC18810 | Atherosclerosis |
| TMAO pathway | Metabolic pathway affecting ER stress | Hypertension |
| MicroRNAs (general) | Regulate pulmonary arterial remodeling | Pulmonary hypertension |
How Is negative regulation of endothelial cell apoptotic process Regulated?
The negative regulation of endothelial cell apoptotic process is controlled at multiple levels. At the transcriptional level, SIRT6 modulates the Lin28b/let-7 pathway to suppress pyroptosis and apoptosis. Post-translational regulation includes ubiquitination of TRAF6 by RND3, which alters apoptotic signaling. Kinase signaling, such as MST1 inhibition, directly blocks pro-apoptotic cascades. Non-coding RNAs, including circCHMP5 and lncRNA-ASLNC18810, act as sponges for microRNAs like miR-532-5p and miR-559, thereby fine-tuning gene expression. Additionally, metabolic and stress pathways, such as the TMAO-endoplasmic reticulum stress axis, can influence endothelial survival. These layers of regulation ensure that endothelial cells can adapt to diverse stressors while avoiding inappropriate apoptosis.
negative regulation of endothelial cell apoptotic process and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| MST1 (STK4) | Acute lung injury | Endothelial-specific Mst1 knockout mice |
| RND3 | Atherosclerosis | Rnd3 overexpression in endothelial cells |
| SIRT6 | Atherosclerosis | Sirt6 knockout or overexpression in HUVECs |
| circCHMP5 | Atherosclerosis | circCHMP5 knockdown/overexpression in ox-LDL-treated HUVECs |
| DUSP8 | Glioblastoma vascularization | DUSP8 knockout in glioblastoma stem-like cells |
Atherosclerosis
Atherosclerosis is characterized by endothelial cell injury and apoptosis, driven by oxidized LDL and inflammatory signals. Negative regulators such as RND3, SIRT6, circCHMP5, and lncRNA-ASLNC18810 protect endothelial cells from apoptosis and pyroptosis, thereby limiting plaque progression. Targeting these pathways could restore endothelial integrity in atherosclerotic vessels.
Acute Lung Injury
Acute lung injury involves endothelial barrier disruption and apoptosis. Inhibition of MST1 attenuates acute lung injury in mice by reducing endothelial cell apoptosis, suggesting that MST1 inhibitors could be therapeutic. This highlights the importance of negative regulation of endothelial apoptosis in pulmonary vascular disease.
Pulmonary Arterial Hypertension and Vascular Remodeling
Pulmonary arterial remodeling is associated with endothelial cell apoptosis and proliferation imbalance. MicroRNAs play critical roles in this process, and their dysregulation can promote apoptosis. Additionally, hypertension-related pathways such as TMAO-endoplasmic reticulum stress can exacerbate endothelial dysfunction. Enhancing negative regulation of apoptosis may reverse remodeling.
Glioblastoma and Tumor Angiogenesis
In glioblastoma, DUSP8 regulates the contribution of stem-like cells to tumor vascularization, potentially by modulating endothelial cell survival. Understanding how negative regulation of endothelial apoptosis affects tumor angiogenesis could lead to new anti-angiogenic strategies.
From negative regulation of endothelial cell apoptotic process-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X protect endothelial cells from apoptosis? | CRISPR knockout of gene X in HUVECs followed by apoptosis induction |
| Does a point mutation in gene X affect its anti-apoptotic function? | CRISPR point mutation knock-in in endothelial cells |
| Does overexpression of gene X reduce apoptosis? | Lentiviral overexpression in HUVECs |
| Does a tagged version of gene X localize to mitochondria? | CRISPR knock-in of fluorescent tag |
| Which genes regulate endothelial apoptosis in a genome-wide manner? | CRISPR library screening in endothelial cells under stress |
| Does gene X regulate apoptosis in vivo? | Endothelial-specific knockout mice |
How to Study the negative regulation of endothelial cell apoptotic process Process
| Method | What It Measures | Typical Application |
|---|---|---|
| CRISPR knockout | Loss of gene function | Determine if gene is required for endothelial survival |
| CRISPR knock-in | Introduction of specific mutations or tags | Study point mutations or localization |
| Annexin V/PI flow cytometry | Apoptotic cell percentage | Quantify apoptosis after gene manipulation |
| Caspase-3/7 activity assay | Caspase activation | Measure intrinsic apoptosis |
| Western blot | Protein expression and cleavage | Detect cleaved PARP, caspase-3 |
| RNA-seq | Transcriptome changes | Identify pathways regulated by candidate genes |
| Luciferase reporter assay | miRNA-target interaction | Validate non-coding RNA sponges |
| CRISPR library screening | Genome-wide gene function | Discover novel regulators of endothelial apoptosis |
CRISPR Knockout and Knock-in Models
CRISPR-Cas9 knockout of candidate genes in endothelial cells (e.g., HUVECs) allows assessment of their role in apoptosis. For example, Mst1 knockout mice were used to show protection against acute lung injury. Point mutations can be introduced to dissect specific domains, while knock-in of tags enables localization studies. These models are essential for establishing causality.
RNA Interference and Overexpression
siRNA or shRNA knockdown and cDNA overexpression are complementary to CRISPR. RND3 overexpression suppressed endothelial pyroptosis, and SIRT6 modulation affected the Lin28b/let-7 pathway. These techniques are useful for rapid screening before generating stable CRISPR lines.
Apoptosis Assays
Apoptosis is measured by flow cytometry (Annexin V/PI), TUNEL staining, caspase-3/7 activity assays, and Western blot for cleaved caspase-3 and PARP. These assays quantify the extent of negative regulation. For example, circCHMP5 modulation was assessed by apoptosis assays in ox-LDL-treated cells.
Non-coding RNA and Pathway Analysis
RNA-seq, miRNA arrays, and luciferase reporter assays are used to study non-coding RNA sponges like lncRNA-ASLNC18810 and circCHMP5. Bioinformatics tools predict miRNA targets and pathway enrichment, guiding mechanistic studies.
How CRISPR Can Be Used to Study GO:2000352 negative regulation of endothelial cell apoptotic process
Knockout
CRISPR knockout of genes such as Mst1 in endothelial cells or mice has demonstrated their pro-apoptotic role; deleting Mst1 protects against acute lung injury. Knockout of Rnd3 or Sirt6 would be expected to exacerbate apoptosis, confirming their protective functions. Knockout models are essential for loss-of-function studies.
Point Mutation
Point mutations can dissect specific phosphorylation sites or catalytic residues. For example, mutating the kinase domain of MST1 could reveal its role in apoptosis. CRISPR point mutation knock-in allows precise editing without altering other gene regions.
Knock-in
Knock-in of fluorescent tags (e.g., GFP) into endogenous loci enables real-time imaging of protein localization and dynamics. Tagging SIRT6 or RND3 could reveal their subcellular distribution during apoptosis. Knock-in of reporter genes can also monitor pathway activity.
Overexpression
Overexpression of protective genes like RND3 or SIRT6 via lentiviral vectors can suppress endothelial apoptosis. This approach is useful for gain-of-function studies and for validating therapeutic candidates.
How EDITGENE Supports negative regulation of endothelial cell apoptotic process Research
Researchers studying negative regulation of endothelial cell apoptotic process-related genes often need to determine whether a candidate gene is causally involved in endothelial survival or simply correlated with disease. Establishing causality requires precise genetic manipulation, which is where EDITGENE's CRISPR services can accelerate discovery.
Contact EDITGENE today to design your custom CRISPR model for negative regulation of endothelial cell apoptotic process research.
Frequently Asked Questions About negative regulation of endothelial cell apoptotic process
What is GO:2000352?
GO:2000352 is the Gene Ontology term for negative regulation of endothelial cell apoptotic process, defined as any process that stops, prevents, or reduces the frequency, rate, or extent of endothelial cell apoptosis.
What genes are involved in negative regulation of endothelial cell apoptotic process?
Key genes include MST1 (STK4), RND3, SIRT6, circCHMP5, DUSP8, and lncRNA-ASLNC18810, as well as microRNAs like miR-532-5p and miR-559.
How does SIRT6 inhibit endothelial cell apoptosis?
SIRT6 inhibits endothelial cell pyroptosis and apoptosis by regulating the Lin28b/let-7 pathway, which suppresses pro-apoptotic signaling.
What is the role of MST1 in endothelial apoptosis?
MST1 is a pro-apoptotic kinase; inhibiting endothelial cell MST1 attenuates acute lung injury in mice, indicating that MST1 suppression protects endothelial cells.
How is RND3 involved in atherosclerosis?
RND3 suppresses endothelial cell pyroptosis in atherosclerosis through regulation of ubiquitination of TRAF6, thereby reducing apoptotic signaling.
What is the function of circCHMP5 in endothelial cells?
CircCHMP5 contributes to ox-LDL-induced endothelial cell injury through regulation of the miR-532-5p/ROCK2 axis, influencing apoptosis.
How do non-coding RNAs regulate endothelial apoptosis?
Non-coding RNAs such as lncRNA-ASLNC18810 act as microRNA sponges (e.g., for miR-559), modulating gene expression and endothelial cell function in atherosclerosis.
What diseases are associated with dysregulated endothelial apoptosis?
Atherosclerosis, acute lung injury, pulmonary arterial hypertension, hypertension, and glioblastoma vascularization are linked to endothelial apoptosis dysregulation.
What experimental models are used to study negative regulation of endothelial apoptosis?
CRISPR knockout/knock-in mice and cell lines, overexpression systems, and apoptosis assays (flow cytometry, caspase activity) are commonly used.
How can CRISPR screening help identify new regulators?
Genome-wide CRISPR knockout or activation screens in endothelial cells under apoptotic stress can uncover novel genes that negatively regulate apoptosis.
Conclusion
GO:2000352, negative regulation of endothelial cell apoptotic process, is a critical biological process that safeguards vascular integrity. Dysregulation of this process contributes to atherosclerosis, acute lung injury, pulmonary hypertension, and tumor angiogenesis. Key regulators include kinases (MST1), ubiquitin-modifying enzymes (RND3), sirtuins (SIRT6), and non-coding RNAs (circCHMP5, lncRNA-ASLNC18810). Understanding these mechanisms offers therapeutic opportunities to preserve endothelial function. EDITGENE's CRISPR services, from knockout to library screening, empower researchers to dissect these pathways and accelerate translation.
References
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- 2. Zhang Y et al.. 2023. Rnd3 suppresses endothelial cell pyroptosis in atherosclerosis through regulation of ubiquitination of TRAF6.. Clin Transl Med 13(9):e1406 PMID: 37743632
- 3. Yao F et al.. 2022. Sirt6 inhibits vascular endothelial cell pyroptosis by regulation of the Lin28b/let-7 pathway in atherosclerosis.. Int Immunopharmacol 110:109056 PMID: 35978508
- 4. Li X et al.. 2023. CircCHMP5 Contributes to Ox-LDL-induced Endothelial Cell Injury Through the Regulation of MiR-532-5p/ROCK2 axis.. Cardiovasc Drugs Ther 37(6):1-12 PMID: 35084579
- 5. Castellani G et al.. 2025. DUSP8 as a regulator of glioblastoma stem-like cell contribution to tumor vascularization.. J Exp Clin Cancer Res 44(1):269 PMID: 41029387
- 6. Grant JS et al.. 2013. MicroRNAs in pulmonary arterial remodeling.. Cell Mol Life Sci 70(23):4479-94 PMID: 23739951
- 7. Wang Z et al.. 2024. Berberine ameliorates vascular dysfunction by downregulating TMAO-endoplasmic reticulum stress pathway via gut microbiota in hypertension.. Microbiol Res 287:127824 PMID: 39053076
- 8. Wang Q et al.. 2022. The Mechanism Underlying the Regulation of LncRNA-ASLNC18810 Involved in the Abnormal Function of Vascular Endothelial Cell in Atherosclerosis: Its Function as a microRNA (miRNA) Sponge for miR-559.. J Cardiovasc Transl Res 15(5):1010-1023 PMID: 35377130
