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Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies
Published on: September 15, 2023
miR-708-3p promotes gastric cancer progression through downregulating ETNK1
Jincai Shang1, Qingdong Wang1, Jingren Wang1
1Key Laboratory of Microecology-immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang, 154000, China.
Abstract:
MicroRNAs (miRNAs) are small, evolutionarily conserved, non-coding RNAs playing a role in the proliferation, metastasis, apoptosis, chemo-sensitivity, and chemo-resistance of gastric cancer, as well as the stemness of gastric cancer stem cells. miR-708-3p induces gastric cancer cell chemo-resistance, but its actual role in gastric cancer progression remains unclear. This paper shows that miR-708-3p is upregulated in gastric cancer samples and that a high miR-708-3p expression in gastric cancer patients is associated with poor overall survival. Our functional study results indicate that miR-708-3p overexpression promotes gastric cancer cell proliferation and migration, inhibits cell apoptosis, and facilitates the transition from the G0/G1 to the G2/M phase. Furthermore, reducing miR-708-3p levels yielded opposite effects. Next, our in vivo experiments revealed that miR-708-3p advanced gastric cancer cell growth in nude mice. The underlying mechanism was the regulation of ethanolamine kinase 1 (ETNK1) expression by miR-708-3p, which bound to the 3'UTR of the ETNK1 gene in gastric cancer cells. Finally, the recovery assay results showed that ETNK1 overexpression could slow miR-708-3p-induced gastric cancer progression. In conclusion, we identified a new miR-708-3p/ETNK1 pathway involved in gastric cancer progression. These results may offer new targets for gastric cancer therapy and markers for gastric cancer prognosis.
Insights
MicroRNAs (miRNAs) like miR-708-3p are upregulated in gastric cancer, promoting tumor growth and poor survival. Targeting the miR-708-3p/ETNK1 pathway may offer new therapeutic strategies for gastric cancer.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- MicroRNAs (miRNAs) are key regulators in gastric cancer, influencing proliferation, metastasis, and chemo-resistance.
- The specific role of miR-708-3p in gastric cancer progression and its therapeutic potential remain largely undefined.
Purpose of the Study:
- To investigate the role and mechanism of miR-708-3p in gastric cancer progression.
- To identify potential therapeutic targets and prognostic markers for gastric cancer.
Main Methods:
- Analysis of miR-708-3p expression in gastric cancer samples.
- In vitro functional assays (proliferation, migration, apoptosis, cell cycle analysis).
- In vivo experiments in nude mice and mechanistic studies involving ETNK1 regulation.
Main Results:
- miR-708-3p is upregulated in gastric cancer and associated with poor patient survival.
- Overexpression of miR-708-3p promotes gastric cancer cell proliferation, migration, and G0/G1 to G2/M phase transition, while inhibiting apoptosis.
- miR-708-3p targets and downregulates ethanolamine kinase 1 (ETNK1) expression, promoting tumor growth in vivo.
Conclusions:
- A novel miR-708-3p/ETNK1 pathway is identified as a crucial driver of gastric cancer progression.
- miR-708-3p and ETNK1 represent potential therapeutic targets and prognostic biomarkers for gastric cancer.
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