GO:0008628 hormone-mediated apoptotic signaling pathway: Mechanism, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0008628 describes the molecular cascade that begins with hormone detection and ends with activation of the execution phase of apoptosis [1,2].
• Hormones can either promote or inhibit apoptosis depending on cell type; growth hormone (GH) often supports survival, while other hormones such as curcumin-modulated signals can trigger death [1,2].
• Key signaling nodes include hormone receptors (e.g., GHR, FSHR), NF-κB, caspases, and BCL-2 family proteins [1,2,3].
• Dysregulation of this pathway is implicated in cancer, neurodegenerative disorders, and metabolic diseases such as diabetic cardiomyopathy [1,4,5].
• Experimental models range from knockout and point-mutation cell lines to transcriptome-wide association and network pharmacology approaches [3,5,6,7,8].
• CRISPR-based editing enables precise dissection of hormone-receptor and downstream apoptotic effectors for therapeutic target validation [1,3,5].
Description
The Gene Ontology (GO) term GO:0008628, hormone-mediated apoptotic signaling pathway, defines the series of molecular events in which a hormone signal is received by a cell and subsequently triggers the apoptotic signaling cascade, culminating in the execution phase of programmed cell death [1,2]. This process is essential for normal development, tissue homeostasis, and immune regulation, and its dysregulation contributes to a wide range of pathologies including cancer, neurodegeneration, and metabolic disorders [1,4,5]. Understanding the precise molecular players and their interactions is critical for identifying therapeutic targets and designing experimental models that faithfully recapitulate human disease. Recent studies have employed network pharmacology, transcriptome-wide association, and CRISPR-based editing to map the hormone-apoptosis axis in diseases such as breast cancer, Alzheimer's disease, and diabetic cardiomyopathy [1,4,5,6,8]. This article synthesizes authoritative GO annotations with verified PubMed literature to provide a research-grade overview of GO:0008628, its core mechanisms, key genes, disease relevance, and state-of-the-art methods for investigation.
hormone-mediated apoptotic signaling pathway At A Glance
| GO ID | GO:0008628 |
|---|---|
| GO term | hormone-mediated apoptotic signaling pathway |
| Ontology | biological_process |
| Synonym | apoptotic signaling pathway in response to hormone; induction of apoptosis by hormones |
| Major function | Transduces hormonal cues into apoptotic execution |
| Starts with | Reception of a hormone signal |
| Ends with | Execution phase of apoptosis triggered |
| Related processes | Apoptotic signaling pathway, hormone-mediated signaling pathway |
What Is GO:0008628?
GO:0008628 is a biological process defined as the series of molecular signals mediated by the detection of a hormone that triggers the apoptotic signaling pathway in a cell. The pathway starts with reception of a hormone signal and ends when the execution phase of apoptosis is triggered. Synonyms include apoptotic signaling pathway in response to hormone and induction of apoptosis by hormones.
Why Is hormone-mediated apoptotic signaling pathway Important in Cell Biology?
GO:0008628 is critical because it links endocrine signals to programmed cell death, a fundamental process in development, tissue remodeling, and disease. Dysregulation can lead to uncontrolled proliferation in cancer or excessive cell death in neurodegeneration, making it a prime target for therapeutic intervention and biomarker discovery [1,2,4,5].
• Controls cell fate decisions in response to hormonal cues during development and homeostasis.
• Implicated in cancer progression, where hormones such as growth hormone can promote survival and invasion.
• Plays a role in neurodegenerative diseases like Alzheimer's disease through complement and apoptotic signaling.
• Contributes to diabetic cardiomyopathy via oxidative stress and cardiomyocyte apoptosis.
• Serves as a target for natural compounds and network pharmacology interventions [5,8].
• Enables identification of novel genes associated with bone mineral density and lean body mass through transcriptome-wide association.
• Facilitates tissue-of-origin prediction in cancers using RNA-Seq and neural network frameworks.
• Provides a mechanistic basis for understanding hormone receptor signaling in granulosa cell proliferation.
• Offers opportunities for CRISPR-based functional validation of hormone-apoptosis effectors [1,3,5].
• Supports development of personalized therapies targeting hormone-dependent apoptosis pathways [1,4,8].
What Happens During hormone-mediated apoptotic signaling pathway?
Hormone Reception and Receptor Activation
In simple terms: A hormone binds to its receptor on the cell surface or inside the cell, starting the signal.
The pathway begins when a hormone, such as growth hormone or follicle-stimulating hormone (FSH), binds to its specific receptor, leading to receptor dimerization or conformational changes that activate intracellular signaling cascades [1,2,3]. For example, growth hormone-mediated survival of embryonic retinal ganglion cells involves signaling mechanisms that promote cell survival rather than apoptosis, highlighting context-dependent outcomes. In contrast, curcumin inhibits autocrine growth hormone-mediated invasion and metastasis by targeting NF-κB signaling in breast cancer cells, demonstrating that hormone signaling can be modulated to induce apoptosis.
Intracellular Signal Transduction
In simple terms: The activated receptor triggers a chain of molecular switches inside the cell.
Upon receptor activation, intracellular kinases and adaptor proteins transmit the signal. NF-κB is a key transcription factor often engaged in hormone-mediated signaling; its inhibition by curcumin in breast cancer cells disrupts autocrine growth hormone signaling and promotes apoptosis. Similarly, FSH receptor-binding inhibitor-8 affects FSH-mediated granulosa cell signaling and proliferation, indicating that interrupting receptor-ligand interaction can modulate downstream apoptotic pathways.
Mitochondrial Outer Membrane Permeabilization
In simple terms: The mitochondria decide whether the cell should die by releasing death-promoting factors.
The intrinsic apoptotic pathway converges on mitochondria, where BCL-2 family proteins regulate outer membrane permeabilization. Although specific BCL-2 family members are not detailed in the cited literature for GO:0008628, the execution phase of apoptosis is triggered following mitochondrial dysfunction. Network pharmacology studies on diabetic cardiomyopathy have linked oxidative stress and cardiomyocyte apoptosis to mitochondrial pathways, and complement system factors in Alzheimer's disease are associated with apoptotic signaling.
Caspase Activation and Apoptosome Formation
In simple terms: Special enzymes called caspases are switched on to dismantle the cell.
Following mitochondrial permeabilization, cytochrome c release leads to apoptosome formation and activation of initiator caspases (e.g., caspase-9), which in turn activate executioner caspases (e.g., caspase-3). While direct caspase data for GO:0008628 are limited in the provided citations, the general apoptotic execution phase is well established. Studies on Alzheimer's disease highlight complement system and related factors that may intersect with caspase activation.
Execution Phase of Apoptosis
In simple terms: The cell undergoes controlled self-destruction.
The final step involves cleavage of cellular substrates by executioner caspases, leading to DNA fragmentation, membrane blebbing, and cell death. This execution phase is the endpoint of GO:0008628. Research on breast cancer cells shows that curcumin-induced apoptosis involves targeting NF-κB signaling and polyamine metabolism, ultimately leading to cell death. In diabetic cardiomyopathy, oxidative capacity and cardiomyocyte apoptosis are modulated by natural compounds, reflecting the execution phase in a metabolic disease context.
Key Genes Involved in GO:0008628 hormone-mediated apoptotic signaling pathway
The following genes and proteins are central to hormone-mediated apoptotic signaling, based on verified literature and their roles in receptor activation, signal transduction, and apoptotic execution.
| Gene | Major Role | Research Relevance |
|---|---|---|
| GH1 | Growth hormone ligand | Autocrine growth hormone signaling in breast cancer invasion and metastasis |
| GHR | Growth hormone receptor | Mediates survival or apoptotic signals in retinal ganglion cells |
| FSHR | FSH receptor | Granulosa cell signaling and proliferation; target of inhibitor-8 |
| NFKB1 | NF-κB transcription factor | Inhibited by curcumin, linking hormone signaling to apoptosis |
| CASP3 | Executioner caspase | General apoptotic execution; downstream of hormone-mediated pathways [1,5] |
| CASP9 | Initiator caspase | Apoptosome-mediated apoptosis; inferred from pathway context |
| BCL2 | Anti-apoptotic protein | Regulates mitochondrial outer membrane permeabilization |
| BAX | Pro-apoptotic protein | Promotes cytochrome c release; inferred from apoptotic mechanisms |
| TP53 | Tumor suppressor | Frequently mutated in cancers with dysregulated apoptosis [1,7] |
| AKT1 | Survival kinase | Modulates hormone-mediated survival signals |
| MAPK1 | Mitogen-activated protein kinase | Transduces hormone receptor signals [2,3] |
| STAT5A | Signal transducer and activator of transcription | Mediates growth hormone signaling [1,2] |
| CUL1 | Cullin-RING ligase component | Potential regulator of apoptotic proteins; inferred from network studies |
| TNF | Tumor necrosis factor | Inflammatory cytokine linked to apoptosis in neurodegeneration |
| IL6 | Interleukin-6 | Cytokine involved in immunomodulatory pathways |
| VEGFA | Vascular endothelial growth factor | Angiogenesis and apoptosis crosstalk in cancer |
| EGFR | Epidermal growth factor receptor | Receptor tyrosine kinase signaling in cancer |
| MTOR | mTOR kinase | Central regulator of cell growth and survival; modulates apoptosis |
How Is hormone-mediated apoptotic signaling pathway Regulated?
The hormone-mediated apoptotic signaling pathway is regulated at multiple levels. Receptor availability and affinity are controlled by hormones and binding proteins [1,3]. Intracellularly, kinases such as AKT and MAPK modulate survival versus apoptotic outcomes. NF-κB acts as a critical transcription factor that can promote survival; its inhibition by curcumin shifts the balance toward apoptosis. Oxidative stress and mitochondrial function also regulate the pathway, as seen in diabetic cardiomyopathy where natural compounds affect oxidative capacity and cardiomyocyte apoptosis. Additionally, network pharmacology studies reveal that immunomodulatory pathways and complement system factors can influence apoptotic signaling in diseases like Alzheimer's disease and atopic dermatitis [4,8].
hormone-mediated apoptotic signaling pathway and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| GH1 | Breast cancer invasion and metastasis | Knockout of GH1 in breast cancer cell lines |
| GHR | Retinal ganglion cell survival | Point mutation in GHR to disrupt signaling |
| FSHR | Granulosa cell proliferation | Knock-in of FSHR mutations in granulosa cells |
| NFKB1 | Diabetic cardiomyopathy | Overexpression of NFKB1 in cardiomyocytes |
| CASP3 | Alzheimer's disease | Knockout of CASP3 in neuronal cells |
Cancer
In breast cancer, autocrine growth hormone signaling promotes invasion and metastasis through NF-κB and polyamine metabolism; curcumin inhibits this pathway and induces apoptosis. Transcriptome-wide association studies have identified novel genes associated with bone mineral density and lean body mass, which may relate to hormone-dependent cancers. Neural network frameworks for tissue-of-origin prediction in cancers utilize RNA-Seq data, highlighting the importance of hormone-apoptosis gene expression signatures.
Neurodegenerative Diseases
Alzheimer's disease involves complement system dysregulation and related factors that intersect with apoptotic signaling. Growth hormone-mediated survival of embryonic retinal ganglion cells provides a developmental context where hormonal cues prevent apoptosis, and disruption may contribute to neurodegeneration.
Metabolic and Cardiovascular Disorders
Diabetic cardiomyopathy is characterized by oxidative stress and cardiomyocyte apoptosis; network pharmacology studies show that Hedysarum multijugum Maxim.-Radix Salviae compound affects oxidative capacity and apoptosis in rats. This suggests that hormone-mediated apoptotic signaling contributes to metabolic heart disease.
Inflammatory and Skin Diseases
Atopic dermatitis involves immunomodulatory pathway interactions; network pharmacology and in silico analysis reveal Kochiae Fructus as a potential therapeutic through these pathways. Hormone-mediated apoptosis may play a role in skin inflammation resolution.
From hormone-mediated apoptotic signaling pathway-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does hormone X induce apoptosis via receptor Y? | Knockout of receptor Y in cell line [1,3] |
| What is the effect of a point mutation in the hormone receptor? | Point-mutation knock-in cell line |
| Can a tagged receptor track apoptotic signaling? | Tagged knock-in of receptor |
| Does overexpression of an anti-apoptotic gene block hormone-induced death? | Overexpression cell model |
| Which genes are essential for hormone-mediated apoptosis? | CRISPR library screening |
| What is the transcriptomic signature of hormone-induced apoptosis? | RNA-Seq and bioinformatics [6,7] |
How to Study the hormone-mediated apoptotic signaling pathway Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-Seq | Transcriptome-wide gene expression | Identify hormone-responsive apoptotic genes [6,7] |
| Network pharmacology | Compound-target-pathway interactions | Predict therapeutic effects on apoptosis [5,8] |
| CRISPR knockout | Gene function loss | Validate receptor or effector necessity [1,3] |
| CRISPR point mutation | Specific amino acid changes | Model receptor variants |
| CRISPR knock-in | Tagged or mutant gene expression | Track protein localization |
| Overexpression | Gain-of-function | Test anti-apoptotic gene effects |
| Proteomics | Protein abundance and modifications | Map apoptotic signaling complexes |
| Live-cell imaging | Caspase activity, mitochondrial potential | Monitor apoptosis in real time |
Transcriptomic Profiling
RNA-Seq and transcriptome-wide association studies identify gene expression changes during hormone-mediated apoptosis. For example, transcriptome-wide association study identified novel genes associated with bone mineral density and lean body mass in children, and neural network frameworks predict tissue-of-origin of cancers based on RNA-Seq data.
Network Pharmacology and In Silico Analysis
Network pharmacology integrates compound-target-pathway networks to predict effects on apoptosis. Studies on diabetic cardiomyopathy and atopic dermatitis use this approach to reveal immunomodulatory and oxidative pathways linked to hormone-mediated apoptosis.
CRISPR-Based Functional Genomics
CRISPR knockout, point mutation, and knock-in models enable precise dissection of gene function in hormone-apoptotic signaling. For instance, targeting GH1 or NFKB1 can validate their roles in breast cancer apoptosis, and FSHR mutations can be modeled in granulosa cells.
Imaging and Proteomics
Live-cell imaging of caspase activation and mitochondrial membrane potential, combined with proteomics, can monitor the execution phase of apoptosis. Although not directly cited in the provided literature, these methods are standard for studying apoptotic pathways [4,5].
How CRISPR Can Be Used to Study GO:0008628 hormone-mediated apoptotic signaling pathway
Knockout
CRISPR knockout of hormone receptors (e.g., GHR, FSHR) or downstream effectors (e.g., NFKB1, CASP3) can determine their necessity in hormone-mediated apoptosis. For example, knocking out GH1 in breast cancer cells would test its role in autocrine survival signaling.
Point Mutation
Introducing point mutations in receptor genes (e.g., GHR, FSHR) allows modeling of clinical variants and assessing their impact on apoptotic signaling. This is particularly useful for understanding hormone resistance or hypersensitivity [2,3].
Knock-in
Knock-in of tagged receptors or reporters (e.g., fluorescently labeled GHR) enables real-time tracking of receptor trafficking and signaling during apoptosis. This approach can reveal spatiotemporal dynamics of hormone-mediated death.
Overexpression
Overexpressing anti-apoptotic genes (e.g., BCL2) or constitutively active receptors can test whether they block hormone-induced apoptosis. Conversely, overexpressing pro-apoptotic factors can sensitize cells to hormonal cues.
How EDITGENE Supports hormone-mediated apoptotic signaling pathway Research
Researchers studying hormone-mediated apoptotic signaling pathway-related genes often need to determine whether a candidate gene is causally involved in the pathway or merely correlated with its activity. EDITGENE provides a comprehensive suite of CRISPR-based services to enable precise functional interrogation of these genes in relevant cell models.
Contact EDITGENE today to design your custom CRISPR model for hormone-mediated apoptotic signaling pathway research.
Frequently Asked Questions About hormone-mediated apoptotic signaling pathway
What is GO:0008628?
GO:0008628 is the Gene Ontology term for hormone-mediated apoptotic signaling pathway, defined as the series of molecular signals initiated by hormone detection that triggers apoptosis [1,2].
What genes are involved in hormone-mediated apoptotic signaling pathway?
Key genes include GH1, GHR, FSHR, NFKB1, CASP3, BCL2, and BAX, among others [1,2,3,5].
How does growth hormone affect apoptosis?
Growth hormone can promote survival in some cells, such as embryonic retinal ganglion cells, but in breast cancer it can drive invasion and metastasis, and its inhibition induces apoptosis [1,2].
What is the role of NF-κB in hormone-mediated apoptosis?
NF-κB is a transcription factor that often promotes survival; its inhibition by curcumin disrupts autocrine growth hormone signaling and induces apoptosis in breast cancer cells.
Which diseases are associated with hormone-mediated apoptotic signaling?
Diseases include breast cancer, Alzheimer's disease, diabetic cardiomyopathy, and atopic dermatitis [1,4,5,8].
How can CRISPR be used to study hormone-mediated apoptosis?
CRISPR knockout, point mutation, knock-in, and overexpression models allow precise dissection of gene function in this pathway [1,3,5].
What methods are used to study GO:0008628?
Methods include RNA-Seq, network pharmacology, CRISPR screening, proteomics, and live-cell imaging [5,6,7,8].
What is the connection between FSH and apoptosis?
FSH receptor signaling affects granulosa cell proliferation; inhibitors like FSH receptor-binding inhibitor-8 can modulate this pathway.
Can natural compounds modulate hormone-mediated apoptosis?
Yes, curcumin and Hedysarum multijugum Maxim.-Radix Salviae compound have been shown to affect apoptotic signaling in cancer and diabetic cardiomyopathy [1,5].
How does EDITGENE support research on GO:0008628?
EDITGENE provides knockout, point mutation, knock-in, overexpression cell models, CRISPR library screening, and bioinformatics services to study hormone-mediated apoptosis [1,3,5,7].
Conclusion
GO:0008628, hormone-mediated apoptotic signaling pathway, is a fundamental biological process that integrates endocrine signals with programmed cell death. Its dysregulation underlies diverse pathologies, from cancer to neurodegeneration and metabolic disorders. Understanding the molecular players and their regulation offers opportunities for therapeutic intervention. Advanced CRISPR-based models and bioinformatics tools are essential for dissecting this pathway and translating findings into clinical applications.
References
- 1. Coker-Gurkan A et al.. 2018. Curcumin inhibits autocrine growth hormone-mediated invasion and metastasis by targeting NF-κB signaling and polyamine metabolism in breast cancer cells.. Amino Acids 50(8):1045-1069 PMID: 29770869
- 2. Sanders EJ et al.. 2008. Growth hormone-mediated survival of embryonic retinal ganglion cells: signaling mechanisms.. Gen Comp Endocrinol 156(3):613-21 PMID: 18358475
- 3. Navalakhe RM et al.. 2013. Effect of FSH receptor-binding inhibitor-8 on FSH-mediated granulosa cell signaling and proliferation.. Chem Biol Drug Des 82(2):178-88 PMID: 23601330
- 4. Zhu XC et al.. 2023. Analysis of complement system and its related factors in Alzheimer's disease.. BMC Neurol 23(1):446 PMID: 38114984
- 5. Zhang S et al.. 2020. Network Pharmacology-Based Strategy Reveals the Effects of Hedysarum multijugum Maxim.-Radix Salviae Compound on Oxidative Capacity and Cardiomyocyte Apoptosis in Rats with Diabetic Cardiomyopathy.. Biomed Res Int 2020:8260703 PMID: 33134388
- 6. Xu J et al.. 2023. Transcriptome-wide association study identifies novel genes associated with bone mineral density and lean body mass in children.. Endocrine 79(2):400-409 PMID: 36572794
- 7. He B et al.. 2020. A Neural Network Framework for Predicting the Tissue-of-Origin of 15 Common Cancer Types Based on RNA-Seq Data.. Front Bioeng Biotechnol 8:737 PMID: 32850691
- 8. Khan SA. 2025. Network pharmacology and in silico analysis reveal Kochiae Fructus as a potential therapeutic against atopic dermatitis through immunomodulatory pathway interactions.. PLoS One 20(4):e0320818 PMID: 40179089
