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Updated: Aug 2, 2025

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Published on: January 12, 2020
γ-tocotrienol regulates gastric cancer by targeting notch signaling pathway
1Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Orthopaedic Department of Tongji Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China.
Background:
Gastric cancer is a common cause of death from cancer and an important global health care issue. Consequently, there is an urgent need to find new drugs and therapeutic targets for the treatment of gastric cancer. Recent studies have shown that tocotrienols (T3) have significant anticancer ability in cancer cell lines. Our previous study found that γ-tocotrienol (γ-T3) induced apoptosis in gastric cancer cells. We further explored the possible mechanisms of γ-T3 therapy for gastric cancer.
Methods:
In this study, we treated gastric cancer cells with γ-T3, collect and deposit the cells. γ-T3-treated gastric cancer cells group and untreated group were subjected to RNA-seq assay, and analysis of sequencing results.
Results:
Consistent with our previous findings, the results suggest that γ-T3 can inhibit mitochondrial complexes and oxidative phosphorylation. Analysis reveals that γ-T3 has altered mRNA and ncRNA in gastric cancer cells. Significantly altered signaling pathways after γ-T3 treatment were enriched for human papillomavirus infection (HPV) pathway and notch signaling pathway. The same significantly down-regulated genes notch1 and notch2 were present in both pathways in γ-T3-treated gastric cancer cells compared to controls.
Conclusions:
It is indicated that γ-T3 may cure gastric cancer by inhibiting the notch signaling pathway. To provide a new and powerful basis for the clinical treatment of gastric cancer.
Insights
Gamma-tocotrienol (γ-T3) may treat gastric cancer by inhibiting the notch signaling pathway. This study explored γ-T3
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Gastric cancer is a leading cause of cancer mortality globally.
- There is a critical need for novel therapeutic targets and drugs for gastric cancer treatment.
- Tocotrienols (T3) exhibit promising anticancer properties in various cancer cell lines.
Purpose of the Study:
- To investigate the underlying mechanisms of gamma-tocotrienol (γ-T3) in gastric cancer therapy.
- To build upon previous findings that γ-T3 induces apoptosis in gastric cancer cells.
- To identify specific molecular pathways affected by γ-T3 treatment.
Main Methods:
- Gastric cancer cells were treated with γ-T3.
- RNA sequencing (RNA-seq) was performed on treated and untreated gastric cancer cells.
- Analysis of mRNA, ncRNA, and signaling pathway alterations was conducted.
Main Results:
- γ-T3 treatment inhibited mitochondrial complexes and oxidative phosphorylation in gastric cancer cells.
- Significant alterations in mRNA and ncRNA expression were observed post γ-T3 treatment.
- The human papillomavirus (HPV) infection and notch signaling pathways were significantly altered, with down-regulation of Notch1 and Notch2 genes.
Conclusions:
- γ-T3 shows potential as a therapeutic agent for gastric cancer by inhibiting the notch signaling pathway.
- This research provides a foundation for developing new clinical treatments for gastric cancer.
- Targeting the notch signaling pathway with γ-T3 represents a novel therapeutic strategy.
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