Circ_0003340 regulates the expression of ENAH to affect the development of esophageal cancer through miR‐874‐3p
Abstract Background Esophageal cancer is a malignant tumor with a poor prognosis and high incidence. Circular RNAs (circRNAs) have been shown to be involved in the pathogenesis of cancers, including esophageal cancer. Here, we explored the precise role of circ_0003340 in esophageal cancer developmen...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-03-01
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| Series: | Thoracic Cancer |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/1759-7714.14812 |
| Summary: | Abstract Background Esophageal cancer is a malignant tumor with a poor prognosis and high incidence. Circular RNAs (circRNAs) have been shown to be involved in the pathogenesis of cancers, including esophageal cancer. Here, we explored the precise role of circ_0003340 in esophageal cancer development. Methods The expression levels of circ_0003340, miR‐874‐3p and enabled homolog (ENAH) were detected by quantitative real‐time polymerase chain reaction and western blot. Subcellular localization and RNase R assays were used to characterize circ_0003340. Cell Counting Kit 8, flow cytometry, transwell assays were used to analyze cell proliferation, apoptosis, migration and invasion. The effect of circ_0003340 on tumor growth was assessed by tumor experiments in vivo. Dual‐luciferase reporter assay was used to analyze the relationship between miR‐874‐3p and circ_0003340 or ENAH. Results Circ_0003340 was mainly located in the cytoplasm and was upregulated in esophageal cancer tissues and cells. Circ_0003340 knockdown inhibited cell proliferation, migration, invasion, glucose consumption, and lactate production and induced cell apoptosis in esophageal cancer cells. Moreover, circ_0003340 knockdown suppressed tumor growth in vivo. MiR‐874‐3p was reduced in esophageal cancer tissues and cells, and it was a molecular mediator of circ_0003340 function in esophageal cancer cells. ENAH was identified as a direct and functional target of miR‐874‐3p in esophageal cancer cells. The promotion effect of circ_0003340 on ENAH was ameliorated by miR‐874‐3p. Conclusion The data demonstrated that circ_0003340 promoted the progression of esophageal cancer through miR‐874‐3p/ENAH axis, which might provide novel therapeutic targets for esophageal cancer intervention. |
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| ISSN: | 1759-7706 1759-7714 |