GO:0071375 cellular response to peptide hormone stimulus: Signaling Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0071375 describes how a cell changes its state or activity in response to a peptide hormone stimulus, a class of secreted peptides with endocrine functions.
• Peptide hormones such as vasopressin, oxytocin, CRH, and amylin act on target cells through specific receptors and downstream signaling cascades.
• The cellular response includes changes in movement, secretion, enzyme production, and gene expression, often mediated by second messengers like cAMP.
• Key genes involved include receptors (e.g., AVPR1A, OXTR, CRHR1, AMY1) and downstream effectors that regulate hormone metabolism and cellular responses.
• Dysregulation of peptide hormone responses is linked to metabolic, reproductive, and neurological disorders, making it a target for therapeutic research.
• CRISPR-based models (knockout, point mutation, knock-in, overexpression) enable precise dissection of peptide hormone signaling pathways in relevant cell types.
Description
Cellular response to peptide hormone stimulus (GO:0071375) is a fundamental biological process by which cells detect and respond to peptide hormones, a class of signaling molecules secreted into the bloodstream that exert endocrine functions. Peptide hormones such as vasopressin, oxytocin, corticotropin-releasing hormone (CRH), and amylin bind to specific cell-surface receptors, triggering intracellular signaling cascades that alter cell behavior, metabolism, and gene expression. This process is essential for maintaining homeostasis, regulating reproduction, metabolism, and stress responses. Understanding the molecular players and regulatory mechanisms of GO:0071375 is critical for researchers studying endocrine disorders, cancer, and neurological diseases. The QuickGO definition states: 'Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a peptide hormone stimulus.' This article synthesizes authoritative data and real PubMed literature to provide a research-grade overview of this term, its genes, functions, and experimental approaches.
cellular response to peptide hormone stimulus At A Glance
| GO ID | GO:0071375 |
|---|---|
| GO term | cellular response to peptide hormone stimulus |
| Ontology | biological_process |
| Synonym | cellular response to polypeptide hormone stimulus |
| Definition | Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a peptide hormone stimulus. A peptide hormone is any of a class of peptides that are secreted into the blood stream and have endocrine functions in living animals. |
| Major function | Mediates cellular adaptation to endocrine peptide signals, regulating metabolism, secretion, gene expression, and cell movement. |
| Related hormones | Vasopressin, oxytocin, CRH, amylin, and other peptide hormones. |
| Key signaling | Receptor binding, second messenger production (e.g., cAMP), kinase cascades, and transcriptional changes. |
What Is GO:0071375?
GO:0071375, cellular response to peptide hormone stimulus, refers to the series of molecular events and cellular changes triggered when a peptide hormone binds to its receptor on a target cell. Peptide hormones are secreted peptides that travel through the blood to act on distant cells, and their binding initiates signaling pathways that modify cellular activities such as secretion, enzyme production, movement, and gene expression. This term encompasses the reception of the hormone, signal transduction, and the resulting cellular outcomes.
Why Is cellular response to peptide hormone stimulus Important in Cell Biology?
GO:0071375 is central to understanding how cells integrate endocrine signals to maintain physiological homeostasis. Peptide hormones control diverse processes including water balance, social behavior, stress responses, and glucose metabolism. Dysregulation of these pathways contributes to diseases such as diabetes, reproductive disorders, and neurological conditions. Studying this process provides insights into fundamental cell biology and identifies therapeutic targets.
• Regulates water and electrolyte balance through vasopressin signaling.
• Modulates social behaviors and arousal via oxytocin.
• Controls stress responses through CRH neurons.
• Influences glucose homeostasis and satiety via amylin.
• Affects ovarian function and hormone metabolism in granulosa cells.
• Provides a model for stimulus-response coupling in neurohypophysial target cells.
• Implicated in metabolic disorders such as diabetes.
• Linked to reproductive and endocrine pathologies.
• Relevant to neurological and psychiatric conditions.
• Offers targets for pharmacological intervention in endocrine diseases.
What Happens During cellular response to peptide hormone stimulus?
Hormone Recognition and Receptor Binding
In simple terms: The cell detects the hormone when it docks onto a specific receptor on the cell surface.
Peptide hormones such as vasopressin or oxytocin bind to their cognate G protein-coupled receptors on target cells, initiating the response. This binding is highly specific and triggers conformational changes in the receptor that activate intracellular signaling.
Signal Transduction and Second Messenger Generation
In simple terms: The receptor activates relay molecules inside the cell, often creating small messenger molecules that amplify the signal.
Activated receptors stimulate G proteins, leading to the production of second messengers such as cyclic AMP (cAMP) or calcium ions. These messengers propagate the signal to downstream effectors, including protein kinases.
Cellular Effector Responses
In simple terms: The cell changes its behavior, such as secreting substances, moving, or altering enzyme activity.
Downstream kinases phosphorylate target proteins, leading to diverse cellular responses including secretion, changes in membrane permeability, and cytoskeletal reorganization. For example, vasopressin triggers water reabsorption in kidney cells.
Transcriptional and Translational Changes
In simple terms: The cell switches genes on or off to produce new proteins that sustain the response.
Peptide hormone signaling can activate transcription factors, altering gene expression programs that contribute to long-term cellular adaptation. In ovarian granulosa cells, hormone metabolism and cellular response genes are differentially expressed upon hormonal stimulation.
Feedback Regulation and Termination
In simple terms: The cell has built-in brakes to stop the response once the hormone signal fades.
Receptor desensitization, second messenger degradation, and negative feedback loops terminate the response, preventing overstimulation. This regulation is crucial for maintaining homeostasis.
Key Genes Involved in GO:0071375 cellular response to peptide hormone stimulus
The following genes and proteins are key players in the cellular response to peptide hormone stimulus, as supported by the cited literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| AVPR1A | Vasopressin receptor 1A; mediates vasopressin signaling | Studied in water balance and social behavior |
| AVPR2 | Vasopressin receptor 2; regulates water reabsorption | Target in nephrogenic diabetes insipidus |
| OXTR | Oxytocin receptor; mediates social and reproductive behaviors | Linked to social cognition and cataplexy |
| CRHR1 | Corticotropin-releasing hormone receptor 1; stress response | Implicated in stress-related disorders |
| CRHR2 | Corticotropin-releasing hormone receptor 2; stress response | Modulates anxiety and feeding |
| AMY1 | Amylin receptor component; regulates glucose homeostasis | Studied in diabetes and obesity |
| RAMP1 | Receptor activity-modifying protein 1; modulates amylin receptor | Affects amylin signaling |
| RAMP2 | Receptor activity-modifying protein 2; modulates amylin receptor | Affects amylin signaling |
| RAMP3 | Receptor activity-modifying protein 3; modulates amylin receptor | Affects amylin signaling |
| GNAS | G protein alpha subunit; couples receptors to cAMP | Central to peptide hormone signal transduction |
| ADCY | Adenylyl cyclase; produces cAMP | Key effector in peptide hormone response |
| PRKACA | Protein kinase A catalytic subunit; phosphorylates targets | Mediates downstream effects |
| CREB1 | Transcription factor; regulates gene expression | Links hormone signaling to transcription |
| STAR | Steroidogenic acute regulatory protein; hormone metabolism | Expressed in ovarian granulosa cells |
| CYP11A1 | Cytochrome P450 family 11 subfamily A member 1; steroidogenesis | Hormone metabolism in granulosa cells |
| HSD3B1 | Hydroxy-delta-5-steroid dehydrogenase; steroidogenesis | Hormone metabolism in granulosa cells |
| INHA | Inhibin alpha subunit; regulates hormone secretion | Ovarian function |
How Is cellular response to peptide hormone stimulus Regulated?
The cellular response to peptide hormone stimulus is tightly regulated at multiple levels. Receptor availability and sensitivity are modulated by feedback mechanisms, including receptor phosphorylation and internalization. Second messenger levels are controlled by phosphodiesterases and phosphatases. Additionally, transcriptional feedback loops adjust the expression of signaling components and target genes. Hormone metabolism and cellular response genes in ovarian granulosa cells are regulated in a cell-type-specific manner.
cellular response to peptide hormone stimulus and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| AMY1 | Diabetes, obesity | Knockout mouse or cell line for amylin signaling |
| OXTR | Social behavior disorders, cataplexy | Knockout or knock-in models to study social triggers |
| CRHR1 | Stress-related disorders | Conditional knockout in hypothalamic neurons |
| AVPR2 | Nephrogenic diabetes insipidus | Point mutation knock-in to mimic human mutations |
| CYP11A1 | Ovarian dysfunction | Overexpression or knockout in granulosa cell lines |
Metabolic Disorders
Amylin, a peptide hormone co-secreted with insulin, plays a key role in glucose homeostasis. Dysregulation of amylin signaling is implicated in diabetes and obesity, making it a therapeutic target.
Reproductive and Endocrine Disorders
Genes involved in hormone metabolism and cellular response in human ovarian granulosa cells are critical for fertility. Abnormal expression of these genes can lead to ovulatory disorders and endocrine pathologies.
Neurological and Psychiatric Conditions
Peptide hormones such as oxytocin and CRH modulate social behavior and stress responses. Dysfunction in their signaling pathways is associated with conditions like cataplexy, anxiety, and mood disorders.
From cellular response to peptide hormone stimulus-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X mediate peptide hormone-induced secretion? | Knockout cell line (e.g., CRISPR-Cas9) |
| Does a specific point mutation alter receptor signaling? | Point mutation knock-in via CRISPR |
| Can a tagged receptor track hormone binding dynamics? | Tagged knock-in (e.g., GFP) |
| Does overexpression of gene Y enhance hormone response? | Overexpression cell model |
| Which genes are essential for hormone metabolism? | CRISPR library screening |
| How does hormone stimulation alter transcriptome? | RNA-seq after hormone treatment |
How to Study the cellular response to peptide hormone stimulus Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | Changes in gene expression | Identify hormone-responsive genes |
| Phosphoproteomics | Protein phosphorylation events | Map signaling pathways |
| Live-cell imaging | Real-time receptor dynamics | Study hormone binding and internalization |
| CRISPR knockout screening | Gene essentiality for hormone response | Discover novel regulators |
| cAMP assays | Second messenger levels | Measure receptor activation |
| Western blot | Protein expression and modification | Validate signaling changes |
| qPCR | mRNA levels of target genes | Confirm transcriptional responses |
Transcriptomic Profiling
RNA sequencing (RNA-seq) can identify global changes in gene expression following peptide hormone stimulation, revealing downstream targets and regulatory networks.
Proteomic and Phosphoproteomic Analysis
Mass spectrometry-based proteomics measures changes in protein abundance and phosphorylation status, uncovering signaling events triggered by hormone receptors.
Live-Cell Imaging
Fluorescently tagged receptors and second messenger biosensors enable real-time visualization of hormone binding and signal propagation in living cells.
CRISPR Screening
Genome-wide CRISPR knockout or activation screens can identify genes that modulate cellular responses to peptide hormones, providing unbiased functional insights.
How CRISPR Can Be Used to Study GO:0071375 cellular response to peptide hormone stimulus
Knockout
CRISPR-Cas9 knockout of candidate genes (e.g., receptors or downstream kinases) in cell lines allows researchers to test their requirement for peptide hormone-induced cellular responses.
Point Mutation
Introducing specific point mutations (e.g., in AVPR2) via CRISPR base editing or homology-directed repair can model human disease variants and dissect receptor function.
Knock-in
Knock-in of fluorescent tags (e.g., GFP) or epitope tags into endogenous loci enables tracking of receptor localization and dynamics in response to hormones.
Overexpression
CRISPR activation (CRISPRa) or cDNA overexpression can elevate gene expression to study gain-of-function effects on hormone sensitivity and downstream signaling.
How EDITGENE Supports cellular response to peptide hormone stimulus Research
Researchers studying cellular response to peptide hormone stimulus-related genes often need to determine whether a candidate gene is causally involved in hormone sensing, signal transduction, or downstream cellular changes. EDITGENE provides comprehensive CRISPR-based services to generate precisely engineered cell models, enabling functional validation and mechanistic studies.
Contact EDITGENE today to design your custom CRISPR model for cellular response to peptide hormone stimulus research.
Frequently Asked Questions About cellular response to peptide hormone stimulus
What is GO:0071375?
GO:0071375 is the Gene Ontology term for cellular response to peptide hormone stimulus, describing how a cell changes its state or activity in response to a peptide hormone.
What are peptide hormones?
Peptide hormones are secreted peptides that travel through the blood and have endocrine functions, such as vasopressin, oxytocin, and amylin.
What genes are involved in cellular response to peptide hormone stimulus?
Key genes include receptors like AVPR1A, OXTR, CRHR1, and AMY1, as well as downstream effectors such as GNAS, ADCY, and PRKACA.
How does peptide hormone signaling work?
Peptide hormones bind to cell-surface receptors, activating G proteins and second messengers like cAMP, which then trigger cellular responses including secretion and gene expression changes.
What diseases are linked to defects in peptide hormone response?
Dysregulation is associated with diabetes, reproductive disorders, and neurological conditions such as cataplexy and stress-related disorders.
How can CRISPR be used to study peptide hormone response?
CRISPR knockout, point mutation, knock-in, and overexpression models allow researchers to test the function of specific genes in hormone signaling pathways.
What methods are used to study cellular response to peptide hormone stimulus?
Common methods include RNA-seq, phosphoproteomics, live-cell imaging, and CRISPR screens.
What is the role of vasopressin in cellular response?
Vasopressin binds to receptors like AVPR1A and AVPR2, triggering signaling that regulates water balance and cellular responses.
How does amylin affect cells?
Amylin is a peptide hormone that regulates glucose homeostasis and satiety, acting through receptors that include AMY1 and RAMP proteins.
Can EDITGENE help with CRISPR models for peptide hormone research?
Yes, EDITGENE provides knockout, point mutation, knock-in, overexpression, library screening, and bioinformatics services tailored to peptide hormone signaling studies.
Conclusion
GO:0071375, cellular response to peptide hormone stimulus, is a vital biological process that governs how cells interpret endocrine signals. From receptor binding to transcriptional changes, this pathway controls metabolism, reproduction, and behavior. Understanding its molecular components and regulatory mechanisms is essential for uncovering disease mechanisms and developing targeted therapies. CRISPR-based models and advanced omics technologies continue to illuminate this complex process.
References
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- 4. Mahoney CE et al.. 2026. Oxytocin promotes socially triggered cataplexy.. Nat Neurosci 29(8):1931-1941 PMID: 42449131
- 5. Leng G et al.. 2008. Population dynamics in vasopressin cells.. Neuroendocrinology 88(3):160-72 PMID: 18667805
- 6. Ludvik B et al.. 1997. Amylin: history and overview.. Diabet Med 14 Suppl 2:S9-13 PMID: 9212323
- 7. Brązert M et al.. 2019. Genes involved in hormone metabolism and cellular response in human ovarian granulosa cells.. J Biol Regul Homeost Agents 33(2):461-468 PMID: 30968676
- 8. Jard S et al.. 1975. Stimulus-response coupling in neurohypophysial peptide target cells.. Physiol Rev 55(4):489-536 PMID: 171691
