ArticleTechnology in cancer research & treatment
RhoA G17E/Vav1 Signaling Induces Cancer Invasion via Matrix Metalloproteinase-9 in Gastric Cancer.
Article in Technology in cancer research & treatment. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 7 citations in OpenAlex.
- An evolutionarily conserved salt bridge stabilizes the active site for GTP hydrolysis in Rho GTPases.The Journal of biological chemistry · 2026Article
- Decoding Rho GTPase signalling networks in directed cell migration.Frontiers in cell and developmental biology · 2026Review
- Anti-metastatic potential of flavonoids for the treatment of cancers: focus on epithelial-mesenchymal transition (EMT) process.Naunyn-Schmiedeberg's archives of pharmacology · 2025Review
- Guanine Nucleotide Exchange Factors and Small GTPases: Their Regulation and Functions, Diseases, and Therapeutic Targets.MedComm · 2025Review
- CD84 as a Prognostic Biomarker and Therapeutic Target in Breast Cancer: Interconnections With PDL1, CD74, and Immune Tolerance Mechanisms.Cancer genomics & proteomics · 2025Article
- Molecular mechanisms of metastatic peritoneal dissemination in gastric adenocarcinoma.Cancer metastasis reviews · 2025Review
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13 authors at 1 institution in 1 country.
Funding
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Abstract
backgroundRAS homolog family member A (RhoA), a member of the Rho family of small GTPases, and Vav1, a guanine nucleotide exchange factor for Rho family GTPases, have been reported to activate pathways related to the actin cytoskeleton and regulation of cell shape, attachment, and motility. The interaction between these molecules in lymphoma is involved in malignant signaling, but its function in epithelial malignancy is unknown. Here, we investigated the malignant signal of mutant RhoA in gastric cancer and demonstrated the potential of RhoA G17E/Vav1 as a therapeutic target for diffuse gastric cancer.
methodsThe RhoA mutants R5W, G17E, and Y42C were retrovirally transduced into the gastric cancer cell line MKN74. The stably transduced cells were used for morphology, proliferation, and migration/invasion assays in vitro. MKN74 cells stably transduced with ectopic wild-type RhoA and mutant RhoA (G17E) were used in a peritoneal xenograft assay.
resultsThe RhoA mutations G17E and Y42C induced morphological changes in MKN74. G17E induced Vav1 expression at the mRNA and protein levels and promoted the migration and invasion of MKN74. An RNA interference assay of Vav1 revealed that RhoA G17E enhanced cancer cell invasion via Vav1. Furthermore, immunoprecipitation revealed that Vav1 and RhoA G17E specifically bind and function together through matrix metalloproteinase -9. In a peritoneal xenograft model of nude mice, RhoA G17E promoted peritoneal dissemination, whereas Vav1 knockdown suppressed it.
conclusionOverall, our findings indicate that RhoA G17E is associated with Vav1 and promoted cancer invasion via matrix metalloproteinase -9 in gastric cancer cells. Thus, RhoA G17E/Vav1 signaling in diffuse gastric cancer may be a useful therapeutic target.
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