GO:1905333 regulation of gastric motility: Mechanism, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:1905333 regulation of gastric motility is a biological process that modulates the frequency, rate, or extent of gastric motility.
• Gastric motility is controlled by neural, hormonal, and cellular signals, including Rho/ROCK, gastrin, and metabolic enzymes.
• Dysregulation of gastric motility contributes to gastric cancer progression, metastasis, and tumor growth.
• Key genes such as RHOA, ROCK, LAMB1, and CD44v6 influence gastric epithelial cell motility and cancer stemness.
• CRISPR-based models (knockout, point mutation, knock-in, overexpression) enable causal studies of motility-regulating genes.
• Understanding this process aids in identifying therapeutic targets for gastric cancer and motility disorders.
Description
Regulation of gastric motility (GO:1905333) is a fundamental biological process that controls the frequency, rate, and extent of gastric smooth muscle contractions, ensuring proper food mixing and emptying. This process is tightly regulated by neural, hormonal, and cellular mechanisms, and its disruption is associated with gastrointestinal disorders and gastric cancer progression. Researchers study this process to understand how gastric epithelial cells and smooth muscle cells coordinate motility and how dysregulation contributes to disease. Recent evidence links gastric motility regulation to Rho/ROCK signaling, metabolic enzymes, and cell adhesion molecules, highlighting its broad impact on gastric physiology and pathology. Investigating GO:1905333 is therefore critical for developing targeted therapies for gastric cancer and motility disorders.
regulation of gastric motility At A Glance
| GO ID | GO:1905333 |
|---|---|
| GO term | regulation of gastric motility |
| Ontology | biological_process |
| Synonym | none |
| Major function | Modulates the frequency, rate, or extent of gastric motility |
| Related cellular components | Smooth muscle cells, enteric neurons, interstitial cells of Cajal |
| Related molecular functions | Rho GTPase activity, kinase signaling, hormone receptor binding |
| Associated diseases | Gastric cancer, gastroparesis, functional dyspepsia |
What Is GO:1905333?
According to the Gene Ontology, GO:1905333 (regulation of gastric motility) is defined as any process that modulates the frequency, rate, or extent of gastric motility. This encompasses molecular signals, cellular pathways, and physiological inputs that influence the contractions of the stomach musculature, thereby affecting digestion and gastric emptying.
Why Is regulation of gastric motility Important in Cell Biology?
Regulation of gastric motility is essential for normal digestion and nutrient absorption, and its dysregulation is implicated in a range of gastrointestinal disorders and gastric malignancies. Understanding the molecular players that control gastric motility can reveal therapeutic targets for conditions such as gastroparesis and gastric cancer, where altered motility contributes to disease progression and metastasis.
• Maintains normal gastric emptying and digestion.
• Dysregulation leads to gastroparesis and functional dyspepsia.
• Altered motility promotes gastric cancer invasion and metastasis.
• Rho/ROCK signaling is a key regulator of gastric smooth muscle contraction.
• Hormones like gastrin modulate gastric acid secretion and motility.
• Metabolic enzymes and hypoxia influence gastric epithelial cell motility.
• Cell adhesion molecules such as CD44v6 affect cancer stem cell motility.
• Targeting motility pathways may improve gastric cancer therapy.
• CRISPR screens can identify novel regulators of gastric motility.
• Bioinformatics integrates multi-omics data to map motility networks.
What Happens During regulation of gastric motility?
Neural and hormonal initiation
In simple terms: The brain and gut hormones tell the stomach muscles when to contract.
Gastric motility is initiated by neural signals from the enteric nervous system and hormones such as gastrin, which regulate the frequency and strength of contractions. These signals coordinate the activity of smooth muscle cells and interstitial cells of Cajal to produce peristaltic waves.
Rho/ROCK signaling in smooth muscle contraction
In simple terms: Rho/ROCK acts like a molecular switch that controls how strongly stomach muscles squeeze.
The Rho/ROCK pathway regulates the contractility of gastric smooth muscle cells by modulating myosin light chain phosphorylation and actin cytoskeleton dynamics. Activation of RhoA and its downstream effector ROCK promotes calcium sensitization, enhancing contractile force and contributing to motility.
Metabolic and hypoxic modulation
In simple terms: Low oxygen and cellular energy changes can alter how stomach cells move.
Hypoxia induces RHOA-dependent mitochondrial remodeling and enhances cell motility in gastric epithelial cells, linking metabolic stress to motility regulation. Additionally, Hsp90 regulates the regional distribution of glycolysis-related enzymes, affecting gastric cancer cell motility and metastasis.
Cell adhesion and stemness in motility
In simple terms: Sticky proteins on cell surfaces help cancer cells move and spread.
CD44v6, a variant of the cell surface glycoprotein CD44, regulates gastric cancer stem cells and promotes motility and metastasis. LAMB1, a laminin subunit, is upregulated via ERK/c-Jun signaling and enhances gastric cancer growth and motility.
Integration of signals for coordinated motility
In simple terms: Many signals come together to ensure the stomach empties properly.
The regulation of gastric motility integrates neural, hormonal, and cellular signals to coordinate smooth muscle contraction and relaxation. Disruption of this integration can lead to motility disorders and contribute to gastric cancer progression.
Key Genes Involved in GO:1905333 regulation of gastric motility
The following genes and proteins have been experimentally linked to the regulation of gastric motility and related cellular processes.
| Gene | Major Role | Research Relevance |
|---|---|---|
| RHOA | Regulates mitochondrial remodeling and cell motility under hypoxia | Studied in gastric epithelial cells to understand hypoxia-induced motility |
| ROCK | Effector of RhoA, promotes smooth muscle contraction | Target for modulating gastric motility and cancer invasion |
| LAMB1 | Laminin subunit, promotes growth and motility | Upregulated via ERK/c-Jun in gastric cancer |
| CD44v6 | Cell surface marker, regulates cancer stem cells | Potential therapeutic target in gastric cancer |
| IGF2BP3 | RNA-binding protein, inhibits ferroptosis | Promotes gastric cancer progression via ETV4/GCH1 |
| Hsp90 | Chaperone, regulates glycolysis enzyme distribution | Promotes metastasis and stemness in gastric cancer |
| GCH1 | GTP cyclohydrolase 1, involved in ferroptosis regulation | Modulated by IGF2BP3/ETV4 axis in gastric cancer |
| ETV4 | Transcription factor, regulates GCH1 | Mediates IGF2BP3 effects on ferroptosis |
| Neogenin-1 | Cell proliferation and motility | Upregulated in gastric cancer |
| Gastrin | Hormone, regulates gastric acid secretion and motility | Implicated in gastric tumor pathogenesis |
| ERK | Kinase, upstream of c-Jun | Mediates LAMB1 upregulation |
| c-Jun | Transcription factor, regulates LAMB1 | Part of ERK/c-Jun axis in gastric cancer |
| RhoA | GTPase, controls actin cytoskeleton | Key regulator of cell motility |
| ROCK1 | Kinase, downstream of RhoA | Involved in smooth muscle contraction |
| ROCK2 | Kinase, downstream of RhoA | Involved in smooth muscle contraction |
| CD44 | Cell adhesion molecule | Regulates cancer stem cell properties |
| Hsp90β | Chaperone isoform | Regulates metabolic enzymes in gastric cancer |
How Is regulation of gastric motility Regulated?
The regulation of gastric motility is modulated by multiple signaling pathways, including Rho/ROCK, ERK/c-Jun, and hypoxia-induced RHOA signaling. Hormonal factors such as gastrin also play a role in controlling gastric acid secretion and motility. Additionally, metabolic enzymes and chaperones like Hsp90 influence the distribution of glycolysis-related enzymes, affecting cell motility and metastasis.
regulation of gastric motility and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| RHOA | Gastric cancer, hypoxia-induced motility | Knockout in gastric epithelial cells |
| ROCK | Gastric cancer invasion | Point mutation to inhibit kinase activity |
| LAMB1 | Gastric cancer growth and motility | Overexpression in gastric cancer cell lines |
| CD44v6 | Gastric cancer stemness | Knock-in of v6 variant |
| IGF2BP3 | Gastric cancer progression | Knockout to assess ferroptosis |
Gastric cancer
Dysregulation of gastric motility pathways is strongly associated with gastric cancer progression and metastasis. Rho/ROCK signaling promotes cancer cell motility and invasion, while LAMB1 upregulation via ERK/c-Jun enhances tumor growth and motility. CD44v6 regulates cancer stem cells, contributing to therapy resistance and metastasis.
Gastroparesis and functional dyspepsia
Impaired regulation of gastric motility leads to delayed gastric emptying, as seen in gastroparesis and functional dyspepsia. Hormonal imbalances, such as altered gastrin signaling, can disrupt normal motility patterns.
Hypoxia and metabolic stress
Hypoxic conditions in the tumor microenvironment induce RHOA-dependent mitochondrial remodeling and enhance gastric epithelial cell motility, linking metabolic stress to cancer progression. Hsp90 further promotes metastasis by regulating glycolysis enzyme distribution.
From regulation of gastric motility-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does RHOA regulate hypoxia-induced motility? | RHOA knockout gastric epithelial cells |
| Does ROCK inhibition affect gastric cancer invasion? | ROCK point mutant (kinase-dead) |
| Does LAMB1 overexpression enhance motility? | LAMB1 overexpression in gastric cancer cells |
| Does CD44v6 knock-in promote stemness? | CD44v6 knock-in in gastric cancer cells |
| Does IGF2BP3 knockout affect ferroptosis? | IGF2BP3 knockout gastric cancer cells |
| Does Hsp90 inhibition alter glycolysis enzyme distribution? | Hsp90 knockdown or inhibitor treatment |
How to Study the regulation of gastric motility Process
| Method | What It Measures | Typical Application |
|---|---|---|
| CRISPR knockout screen | Gene essentiality for motility | Identify novel regulators |
| RNA-seq | Transcriptional changes | Map motility gene networks |
| Proteomics | Protein expression and modifications | Study Rho/ROCK signaling |
| Phosphoproteomics | Kinase activity | Assess ERK/c-Jun axis |
| Live-cell imaging | Cell contraction and migration | Real-time motility assays |
| Organoid culture | Gastric tissue contraction | Model gastric motility disorders |
| Bioinformatics | Pathway enrichment | Integrate multi-omics data |
CRISPR knockout screens
Genome-wide CRISPR knockout screens can identify genes that regulate gastric motility and related cellular phenotypes, such as migration and contraction.
RNA sequencing and transcriptomics
RNA-seq reveals expression changes in motility-related genes under conditions like hypoxia or drug treatment, helping to map regulatory networks.
Proteomics and phosphoproteomics
Proteomic approaches quantify protein abundance and phosphorylation events in Rho/ROCK and ERK pathways, providing insights into motility regulation.
Live-cell imaging
Time-lapse microscopy tracks gastric smooth muscle cell contraction and cancer cell migration, allowing real-time assessment of motility regulation.
How CRISPR Can Be Used to Study GO:1905333 regulation of gastric motility
Knockout
CRISPR knockout of RHOA or ROCK in gastric epithelial cells can abolish hypoxia-induced motility, confirming their essential roles.
Point Mutation
Introducing kinase-dead point mutations in ROCK allows dissection of its catalytic activity in smooth muscle contraction without affecting protein stability.
Knock-in
Knock-in of CD44v6 variant into gastric cancer cells enables study of its specific role in stemness and motility.
Overexpression
Overexpression of LAMB1 in gastric cancer cells enhances growth and motility, validating its oncogenic function.
How EDITGENE Supports regulation of gastric motility Research
Researchers studying regulation of gastric motility-related genes often need to determine whether a candidate gene is causally involved in motility phenotypes. EDITGENE provides comprehensive CRISPR services to accelerate this discovery.
Contact EDITGENE today to design your custom CRISPR model for regulation of gastric motility research.
Frequently Asked Questions About regulation of gastric motility
What is GO:1905333 regulation of gastric motility?
GO:1905333 is a Gene Ontology biological process term defined as any process that modulates the frequency, rate, or extent of gastric motility.
What genes are involved in regulation of gastric motility?
Key genes include RHOA, ROCK, LAMB1, CD44v6, IGF2BP3, and Hsp90, among others.
How does Rho/ROCK signaling regulate gastric motility?
Rho/ROCK signaling controls smooth muscle contraction by modulating myosin light chain phosphorylation and actin dynamics.
What diseases are associated with dysregulated gastric motility?
Gastric cancer, gastroparesis, and functional dyspepsia are linked to impaired regulation of gastric motility.
How can CRISPR be used to study regulation of gastric motility?
CRISPR knockout, point mutation, knock-in, and overexpression models allow functional dissection of motility-related genes.
What is the role of gastrin in gastric motility?
Gastrin is a hormone that regulates gastric acid secretion and motility, and is implicated in gastric tumor pathogenesis.
How does hypoxia affect gastric motility?
Hypoxia induces RHOA-dependent mitochondrial remodeling and enhances gastric epithelial cell motility.
What is the link between CD44v6 and gastric cancer stem cells?
CD44v6 regulates gastric cancer stem cells and promotes motility and metastasis.
What experimental models are used to study gastric motility?
Models include knockout cell lines, organoids, and live-cell imaging assays.
How does Hsp90 regulate gastric cancer motility?
Hsp90 regulates the regional distribution of glycolysis-related enzymes, affecting metastasis and stemness.
Conclusion
Regulation of gastric motility (GO:1905333) is a complex biological process critical for normal digestion and implicated in gastric cancer and motility disorders. Understanding its molecular regulators, such as Rho/ROCK, LAMB1, and CD44v6, offers opportunities for therapeutic intervention. CRISPR-based models and multi-omics approaches are powerful tools to dissect these pathways and identify new targets.
References
- 1. Pal A et al.. 2025. RHOA-dependent regulation of mitochondrial remodeling and cell motility in hypoxia-exposed gastric epithelial cells.. J Cell Sci 138(14) PMID: 40600795
- 2. Liu S et al.. 2024. Hsp90 Promotes Gastric Cancer Cell Metastasis and Stemness by Regulating the Regional Distribution of Glycolysis-Related Metabolic Enzymes in the Cytoplasm.. Adv Sci (Weinh) 11(33):e2310109 PMID: 38874476
- 3. Matsuoka T et al.. 2014. Rho/ROCK signaling in motility and metastasis of gastric cancer.. World J Gastroenterol 20(38):13756-66 PMID: 25320513
- 4. Chen H et al.. 2025. CD44v6-mediated regulation of gastric cancer stem cells: a potential therapeutic target.. Clin Exp Med 25(1):80 PMID: 40069421
- 5. Li K et al.. 2026. IGF2BP3 promotes gastric cancer progression by inhibiting ferroptosis through ETV4-mediated regulation of GCH1.. Cancer Biol Ther 27(1):2664967 PMID: 42068022
- 6. Lee H et al.. 2021. Upregulation of LAMB1 via ERK/c-Jun Axis Promotes Gastric Cancer Growth and Motility.. Int J Mol Sci 22(2) PMID: 33435161
- 7. Kim SJ et al.. 2014. Up-regulation of neogenin-1 increases cell proliferation and motility in gastric cancer.. Oncotarget 5(10):3386-98 PMID: 24930499
- 8. Burkitt MD et al.. 2009. Importance of gastrin in the pathogenesis and treatment of gastric tumors.. World J Gastroenterol 15(1):1-16 PMID: 19115463
