GO:0009755 hormone-mediated signaling pathway: Mechanism, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0009755 (hormone-mediated signaling pathway) is defined as the series of molecular signals mediated by the detection of a hormone.
• Hormone-mediated signaling is conserved across plants and animals and coordinates development, metabolism, reproduction and stress responses [1,5,6].
• In plants, hormone pathways such as those for strigolactones and stress hormones integrate environmental cues into transcriptional and physiological outputs [1,7].
• In animals, thyroid hormone, ACTH and FoxO-dependent pathways illustrate how hormone detection is converted into tissue-specific gene programs [4,5,6,8].
• Dysregulation of hormone-mediated signaling contributes to cardiac hypertrophy, reproductive disorders and altered metabolic states [2,4,6].
• CRISPR knockout, point-mutation, knock-in and overexpression models enable causal dissection of hormone pathway components in relevant cell types [1,5,8].
Description
Hormone-mediated signaling is the process by which a cell detects a hormone and converts that detection into a coordinated series of molecular signals. This Gene Ontology term, GO:0009755, captures the entire cascade from hormone perception to downstream cellular responses, and it is used to annotate gene products that participate in these events. Because hormones act as systemic messengers, the pathway sits at the interface between environmental or physiological inputs and transcriptional, metabolic and developmental outputs [1,5]. In plants, hormone-mediated signaling underpins stress responses, growth regulation and perception of strigolactones and other hormones [1,7]. In animals, thyroid hormone signaling, adrenocorticotropic hormone cascades and FoxO-dependent pathways demonstrate how hormone detection is translated into tissue-specific programs [4,5,6,8]. For researchers, GO:0009755 provides a shared vocabulary for comparing hormone pathways across species and for designing experiments that test causality rather than correlation [1,5]. Understanding this term is therefore essential for studies of development, fertility, immunity and metabolic disease [2,3,6].
hormone-mediated signaling pathway At A Glance
| GO ID | GO:0009755 |
|---|---|
| GO term | hormone-mediated signaling pathway |
| Ontology | biological_process |
| Synonym | hormone mediated signalling |
| Definition | The series of molecular signals mediated by the detection of a hormone. |
| Major function | Transduces hormone detection into downstream cellular responses across plants and animals. |
| Representative hormones | Thyroid hormone, ACTH, strigolactones and stress-related plant hormones. |
| Representative processes | Stress responses, cardiac hypertrophy, reproductive development and diapause regulation. |
| Research relevance | Provides a framework for causal testing of hormone pathway components using genetic models. |
What Is GO:0009755?
GO:0009755, hormone-mediated signaling pathway, is defined by QuickGO as the series of molecular signals mediated by the detection of a hormone. In practical terms, the term covers the molecular events that begin when a hormone is sensed by a cell and continue through the signaling steps that relay that information to downstream effectors. It is a biological process term, meaning it describes a coordinated series of activities rather than a single molecular function or a static cellular structure. The synonym hormone mediated signalling is used interchangeably in the literature. Annotations to this term therefore include receptors, signal transducers and pathway components that are required for hormone detection and the resulting cellular response [1,5,8].
Why Is hormone-mediated signaling pathway Important in Cell Biology?
Hormone-mediated signaling is important because it allows organisms to convert systemic or environmental hormone cues into precise cellular responses. In plants, hormone pathways coordinate stress responses and developmental transitions, making them central to agriculture and plant immunity research [1,3,7]. In animals, thyroid hormone signaling influences cardiac growth and metabolism, while ACTH cascades control steroidogenic gene programs and FoxO factors regulate developmental timing [4,5,6,8]. Disruption of these pathways is linked to cardiac hypertrophy, reproductive disorders and altered metabolic states, so understanding GO:0009755 has direct translational value [2,4,6]. Because the term spans perception, transduction and response, it also provides a rational framework for choosing which nodes to target in genetic screens and therapeutic studies [1,5,8].
• Provides a conserved framework for how hormones are detected and converted into cellular signals.
• Underpins plant stress responses and hormone crosstalk in immunity and development [1,3].
• Controls cardiac growth and hypertrophic responses through thyroid hormone signaling.
• Regulates reproductive and steroidogenic gene programs via ACTH-mediated cascades.
• Influences developmental timing and diapause through FoxO-dependent hormone signaling.
• Is sensitive to physiological state, as shown by increased thyroid hormone signaling sensitivity during prolonged fasting.
• Can be disrupted by environmental exposures, with consequences for testis development and male fertility.
• Provides candidate nodes for genetic screens and CRISPR-based causal studies [1,5,8].
• Helps interpret transcriptomic and proteomic changes in hormone-treated cells and tissues [1,4].
• Supports cross-species comparison of hormone perception mechanisms such as strigolactone signaling.
What Happens During hormone-mediated signaling pathway?
Hormone detection and perception
In simple terms: A cell first has to notice that a hormone is present.
The pathway begins with detection of a hormone, which is the defining event of GO:0009755. In plants, perception of hormones such as strigolactones initiates signaling that shapes development and environmental responses. In animals, thyroid hormone detection and ACTH detection represent distinct perception events that feed into tissue-specific cascades [4,6,8]. The detection step is therefore the entry point that determines whether the rest of the pathway is engaged.
Signal transduction and relay
In simple terms: Once the hormone is detected, the message is passed along inside the cell.
After detection, a series of molecular signals relays the hormone information to downstream effectors. ACTH-mediated signaling cascades coordinate a cyclic pattern of steroidogenic factor 1-dependent transcriptional activation, illustrating how relay steps can be temporally organized. FoxO transcription factors regulate hormone-mediated signaling during nymphal diapause, showing that relay components can integrate developmental context. In plants, hormone-mediated regulation of stress responses depends on transduction components that connect perception to gene expression.
Transcriptional and cellular responses
In simple terms: The signal ultimately changes which genes are turned on or off.
The output of hormone-mediated signaling is often a change in transcriptional programs [1,8]. ACTH-mediated cascades drive cyclic transcriptional activation through steroidogenic factor 1, linking hormone detection to repeated waves of gene expression. Thyroid hormone signaling contributes to cardiac hypertrophy, a response that involves changes in cardiac gene expression and growth. In plants, hormone-mediated regulation of stress responses reprograms gene expression to cope with environmental challenges.
Integration with physiological state
In simple terms: The pathway does not act in isolation; it responds to the body's condition.
Hormone-mediated signaling is modulated by physiological state, as shown by increased sensitivity of thyroid hormone-mediated signaling despite prolonged fasting. Environmental exposures can also perturb these pathways, with prenatal and postnatal exposure to polystyrene microplastics inducing testis developmental disorder and affecting male fertility in mice. Mitochondrial functions further intersect with plant immunity, indicating that hormone signaling integrates with broader cellular physiology. These examples show that GO:0009755 should be interpreted in the context of the whole organism [2,3,4].
Feedback and developmental timing
In simple terms: The pathway can loop back on itself and is timed to developmental stages.
FoxO transcription factors regulate hormone-mediated signaling during nymphal diapause, demonstrating that the pathway is embedded in developmental timing. Cyclic patterns of transcriptional activation in ACTH-mediated signaling imply feedback or oscillatory control. In plants, hormone pathways coordinate stress responses with growth and developmental decisions. Such feedback and timing mechanisms help ensure that hormone responses are appropriate to the organism's stage and environment [1,5,8].
Key Genes Involved in GO:0009755 hormone-mediated signaling pathway
The following genes and proteins are representative components or regulators of hormone-mediated signaling pathway (GO:0009755) as reported in the verified literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| FoxO | Transcription factor regulating hormone-mediated signaling during nymphal diapause | Model for developmental timing and hormone crosstalk |
| SF1 (steroidogenic factor 1) | Mediates ACTH-dependent cyclic transcriptional activation | Readout for ACTH-mediated signaling cascades |
| Thyroid hormone receptor | Mediates thyroid hormone signaling in cardiac tissue | Target for cardiac hypertrophy studies |
| ACTH receptor | Detects adrenocorticotropic hormone and initiates cascades | Entry point for steroidogenic signaling |
| Strigolactone signaling components | Perceive and transduce strigolactone signals in plants | Model for plant hormone perception |
| Stress hormone pathway genes | Regulate plant stress responses | Framework for hormone-mediated stress adaptation |
| Mitochondrial function genes | Support plant immunity and hormone-linked responses | Link between mitochondria and hormone signaling |
| Thyroid hormone signaling effectors | Transduce thyroid hormone signals during fasting | Model for metabolic state sensitivity |
| Testis developmental genes | Respond to microplastic exposure via hormone pathways | Model for reproductive toxicity |
| Plant immunity hormone genes | Integrate hormone signals with defense | Model for hormone-immunity crosstalk |
| Diapause regulators | Control developmental arrest via hormone signaling | Model for seasonal timing |
| Cardiac hypertrophy genes | Respond to thyroid hormone signaling | Model for pathological cardiac growth |
| Steroidogenic enzymes | Downstream of ACTH-mediated cascades | Readout for steroidogenic transcription |
| Strigolactone receptors | Detect strigolactone hormones | Model for perception mechanisms |
| Fasting-responsive genes | Modulate thyroid hormone sensitivity | Model for physiological state effects |
| Microplastic-responsive testis genes | Link environmental exposure to hormone disruption | Model for fertility disorders |
How Is hormone-mediated signaling pathway Regulated?
Hormone-mediated signaling is regulated at multiple levels, including sensitivity to physiological state and developmental timing [4,5]. Prolonged fasting increases the sensitivity of thyroid hormone-mediated signaling, indicating that metabolic status can tune pathway responsiveness. FoxO transcription factors regulate hormone-mediated signaling during nymphal diapause, providing a mechanism for developmental control. ACTH-mediated signaling cascades coordinate a cyclic pattern of transcriptional activation, suggesting oscillatory or feedback regulation. In plants, hormone-mediated regulation of stress responses integrates multiple hormone inputs to shape appropriate physiological outputs. Environmental exposures such as polystyrene microplastics can also perturb these regulatory systems, with consequences for testis development and fertility.
hormone-mediated signaling pathway and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| Thyroid hormone receptor | Cardiac hypertrophy | Cardiomyocyte knockout or overexpression |
| SF1 (steroidogenic factor 1) | Steroidogenic dysfunction | ACTH-treated steroidogenic cell models |
| FoxO | Developmental timing disorders | Diapause or developmental timing models |
| Testis developmental genes | Male fertility disorders | Mouse models of microplastic exposure |
| Strigolactone signaling components | Plant developmental and stress phenotypes | Plant knockout lines |
Cardiac hypertrophy and thyroid hormone signaling
Thyroid hormone signaling is linked to cardiac hypertrophy, a pathological growth response of the heart. Because GO:0009755 includes the detection and relay of thyroid hormone signals, perturbations in this pathway are relevant to understanding hypertrophic remodeling. Researchers can use cardiac models to test how altered thyroid hormone signaling contributes to disease.
Reproductive disorders and environmental exposure
Prenatal and postnatal exposure to polystyrene microplastics induces testis developmental disorder and affects male fertility in mice, implicating hormone-mediated signaling in reproductive toxicity. This work shows that environmental factors can disrupt the pathway and lead to developmental and fertility defects. Such findings support the use of GO:0009755 as a framework for studying reproductive disease mechanisms.
Metabolic and stress-related conditions
Increased sensitivity of thyroid hormone-mediated signaling despite prolonged fasting demonstrates that metabolic state can alter pathway behavior. In plants, hormone-mediated regulation of stress responses is central to coping with environmental challenges, and mitochondrial functions intersect with plant immunity [1,3]. These examples highlight the broad relevance of hormone signaling to stress and metabolic biology [1,3,4].
From hormone-mediated signaling pathway-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Is a candidate receptor required for hormone detection? | CRISPR knockout in hormone-responsive cells |
| Does a specific phosphorylation site control signal relay? | Point-mutation knock-in of the phospho-site |
| Does a transcription factor directly drive hormone-dependent genes? | Tagged knock-in for ChIP or reporter assays |
| Does overexpression of a pathway component alter hormone sensitivity? | Overexpression cell model |
| Which genes mediate hormone-dependent stress responses? | CRISPR library screening in plant or animal cells [1,3] |
| How does environmental exposure perturb hormone signaling? | Exposure model combined with knockout or overexpression |
How to Study the hormone-mediated signaling pathway Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Transcriptional changes downstream of hormone signaling | Time-course hormone treatment [1,8] |
| CRISPR knockout | Requirement of a gene for hormone response | Receptor and transducer validation |
| Point-mutation knock-in | Role of specific residues in signal relay | Phospho-site or binding-site studies |
| Overexpression | Effect of increased pathway component dosage | Hormone sensitivity assays |
| Physiological assays | Organism-level hormone-dependent phenotypes | Cardiac, reproductive or developmental readouts [2,5,6] |
| Comparative plant assays | Conservation of hormone perception mechanisms | Strigolactone and stress hormone studies [1,7] |
| Exposure models | Environmental perturbation of hormone signaling | Microplastic and fertility studies |
Transcriptomic profiling of hormone responses
RNA-seq can measure how hormone treatment or pathway perturbation changes gene expression programs downstream of GO:0009755 [1,8]. In ACTH-mediated signaling, cyclic transcriptional activation can be resolved by time-course RNA-seq. In plants, transcriptomic profiling reveals how hormone-mediated stress responses reprogram gene expression.
Genetic perturbation with CRISPR
CRISPR knockout, point mutation, knock-in and overexpression allow causal testing of hormone pathway components [1,5,8]. For example, knocking out a candidate receptor can determine whether hormone detection is required for a downstream response. Point mutations can test whether specific residues are needed for signal relay.
Physiological and developmental assays
Hormone-mediated signaling is often studied through physiological readouts such as cardiac growth, diapause timing or fertility [2,5,6]. These assays connect molecular changes to organism-level phenotypes [2,5,6]. Combining them with genetic models strengthens causal inference [5,6].
Cross-species and environmental studies
Because GO:0009755 spans plants and animals, comparative studies can reveal conserved and divergent mechanisms [1,7]. Environmental exposure models, such as microplastic treatment, can test how external factors perturb hormone signaling. Mitochondrial and immunity readouts can further contextualize hormone pathway function.
How CRISPR Can Be Used to Study GO:0009755 hormone-mediated signaling pathway
Knockout
CRISPR knockout is used to remove a candidate hormone pathway gene and test whether the hormone response is lost. This approach is applicable to receptors, transducers and transcription factors annotated to GO:0009755 [1,5]. Knockout models provide strong causal evidence when paired with appropriate physiological readouts.
Point Mutation
Point-mutation knock-in can introduce specific amino acid changes to test the role of individual residues in hormone signaling. This is useful for dissecting cyclic transcriptional activation and other relay mechanisms. Such models help distinguish required domains from dispensable ones.
Knock-in
Tagged knock-in allows endogenous labeling of hormone pathway components for imaging, ChIP or interaction studies. It preserves native regulation while enabling precise tracking of the protein. This is valuable for studying transcription factors such as FoxO in developmental contexts.
Overexpression
Overexpression models increase the dosage of a pathway component to test whether it is sufficient to alter hormone sensitivity. They can reveal gain-of-function phenotypes and pathway saturation effects. Overexpression is often combined with knockout to compare loss- and gain-of-function states.
How EDITGENE Supports hormone-mediated signaling pathway Research
Researchers studying hormone-mediated signaling pathway-related genes often need to determine whether a candidate gene is causally involved in hormone detection, relay or response. EDITGENE provides CRISPR-based cell models and screening services that let teams move from correlation to causation in relevant biological systems.
Contact EDITGENE today to design your custom CRISPR model for hormone-mediated signaling pathway research.
Frequently Asked Questions About hormone-mediated signaling pathway
What is GO:0009755 hormone-mediated signaling pathway?
GO:0009755 is the Gene Ontology biological process defined as the series of molecular signals mediated by the detection of a hormone.
What does hormone-mediated signaling pathway mean in simple terms?
It is the process by which a cell notices a hormone and passes that message along to change cell behavior.
What genes are involved in hormone-mediated signaling pathway?
Representative genes include FoxO, steroidogenic factor 1, thyroid hormone receptor, ACTH receptor and strigolactone signaling components [5,6,7,8].
Why is hormone-mediated signaling important in plants?
It regulates stress responses and developmental processes, including strigolactone perception and immunity-related signaling [1,3,7].
How is hormone-mediated signaling studied?
Researchers use RNA-seq, CRISPR knockout, point-mutation knock-in, overexpression and physiological assays [1,4,5,8].
Is hormone-mediated signaling involved in disease?
Yes, it is linked to cardiac hypertrophy, reproductive disorders and metabolic or stress-related conditions [2,4,6].
What is the role of thyroid hormone signaling in the heart?
Thyroid hormone signaling contributes to cardiac hypertrophy and cardiac growth responses.
How does ACTH-mediated signaling work?
ACTH-mediated cascades coordinate a cyclic pattern of steroidogenic factor 1-dependent transcriptional activation.
Can CRISPR be used to study hormone-mediated signaling?
Yes, CRISPR knockout, point mutation, knock-in and overexpression are used to test causal roles of pathway components [1,5,8].
What model systems are used for hormone-mediated signaling research?
Models include plant systems, cardiac cells, steroidogenic cells, developmental timing models and mouse reproductive models [2,5,6,7,8].
Conclusion
GO:0009755, hormone-mediated signaling pathway, provides a precise ontology framework for the molecular events that begin with hormone detection and end in cellular responses. Its relevance spans plant stress biology, cardiac hypertrophy, reproductive development and metabolic regulation, as shown by studies of thyroid hormone, ACTH, FoxO and strigolactone signaling [1,4,5,6,7,8]. Because the pathway is sensitive to physiological state and environmental exposure, causal genetic models are essential for distinguishing drivers from bystanders [2,4]. CRISPR-based knockout, point-mutation, knock-in and overexpression approaches offer a direct route to test these mechanisms in relevant cell and animal systems [1,5,8].
References
- 1. Verma V et al.. 2016. Plant hormone-mediated regulation of stress responses.. BMC Plant Biol 16:86 PMID: 27079791
- 2. Zhao T et al.. 2023. Prenatal and postnatal exposure to polystyrene microplastics induces testis developmental disorder and affects male fertility in mice.. J Hazard Mater 445:130544 PMID: 36493639
- 3. Wang J et al.. 2022. Mitochondrial functions in plant immunity.. Trends Plant Sci 27(10):1063-1076 PMID: 35659746
- 4. Martinez B et al.. 2017. Increased sensitivity of thyroid hormone-mediated signaling despite prolonged fasting.. Gen Comp Endocrinol 252:36-47 PMID: 28743556
- 5. Yin ZJ et al.. 2018. FoxO Transcription Factor Regulate Hormone Mediated Signaling on Nymphal Diapause.. Front Physiol 9:1654 PMID: 30515107
- 6. Dillmann W. 2010. Cardiac hypertrophy and thyroid hormone signaling.. Heart Fail Rev 15(2):125-32 PMID: 19125327
- 7. Marzec M. 2016. Perception and Signaling of Strigolactones.. Front Plant Sci 7:1260 PMID: 27602041
- 8. Winnay JN et al.. 2006. Adrenocorticotropic hormone-mediated signaling cascades coordinate a cyclic pattern of steroidogenic factor 1-dependent transcriptional activation.. Mol Endocrinol 20(1):147-66 PMID: 16109736
