CD147-high extracellular vesicles promote gastric cancer metastasis via VEGF/AKT/eNOS and AKT/mTOR pathways
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View abstract on PubMed
Summary
This summary is machine-generated.Gastric cancer cell-derived extracellular vesicles (EVs) carrying high levels of CD147 promote tumor metastasis by disrupting endothelial barrier integrity. CD147-high EVs serve as potential biomarkers and therapeutic targets for gastric cancer.
Area Of Science
- Oncology
- Cell Biology
- Molecular Medicine
Background
- Extracellular vesicles (EVs) mediate intercellular communication and are implicated in cancer metastasis.
- Gastric cancer cell-derived EVs are known to enhance tumor spread by increasing endothelial barrier permeability.
- The specific molecular drivers and mechanisms of EV-mediated gastric cancer metastasis remain incompletely understood.
Purpose Of The Study
- To identify key effector molecules within gastric cancer EVs responsible for promoting tumor metastasis.
- To elucidate the molecular mechanisms by which these EVs compromise endothelial barrier integrity.
- To evaluate the diagnostic and prognostic potential of identified EV markers in gastric cancer.
Main Methods
- Characterization of molecules expressed on gastric cancer cell-derived EVs.
- In vitro assays to assess the impact of CD147-high EVs on endothelial cell function and barrier integrity.
- Analysis of key signaling pathways (VEGF/AKT/eNOS/NO, AKT/mTOR/p70S6K) activated by CD147-high EVs.
- Correlation analysis of CD147 expression in patient tissues and plasma EVs with clinical outcomes.
Main Results
- CD147 was identified as a key molecule highly expressed on gastric cancer-derived EVs.
- CD147-high EVs significantly promoted endothelial dysfunction, increased vascular permeability, and enhanced tumor cell migration.
- Activation of VEGF/AKT/eNOS/NO and AKT/mTOR/p70S6K pathways by CD147-high EVs led to cytoskeletal reorganization and VE-cadherin internalization.
- High CD147 expression in tissues and plasma EVs correlated with advanced tumor stage, poor prognosis, and reduced survival.
Conclusions
- CD147-high EVs are critical mediators of gastric cancer metastasis by disrupting endothelial barrier function.
- CD147 is a potential diagnostic and prognostic biomarker for gastric cancer.
- Targeting CD147-high EVs presents a promising therapeutic strategy for gastric cancer treatment.
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