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Updated: Jun 11, 2025

Development of Compendium for Esophageal Squamous Cell Carcinoma
Published on: April 12, 2024
EIF4A3-mediated oncogenic circRNA hsa_circ_0001165 advances esophageal squamous cell carcinoma progression through
Xun Zhang1,2, Yan Bian1,2, Qiuxin Li1,2
1Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
Abstract:
Esophageal squamous cell carcinoma (ESCC) remains a major clinical challenge due to its poor prognosis and the scarcity effective therapeutic targets. Circular RNAs (circRNAs) are crucial in cancer progression. In this study, high-throughput sequencing was employed to profile ESCC tissues, revealing that hsa_circ_0001165 is notably elevated in both ESCC tumor samples and cell lines, with its expression is positively associated with patients' TNM staging. Knockdown of hsa_circ_0001165 resulted in reduced malignant biological behavior of ESCC cells in vitro and also inhibited tumor growth in vivo. Mechanism experimental analysis found that hsa_circ_0001165 expression is positively enhanced by eukaryotic translation initiation factor 4A3 (EIF4A3). Hsa_circ_0001165 acts as a miRNA sponge for miR-381-3p, increasing the expression of tensin-3 (TNS3) through a series of related mechanism assays include dual-luciferase reporter gene, RNA Immunoprecipitation and RNA-pulldown. The downregulation in miR-381-3p expression was observed in ESCC tissues, and the cell proliferation, invasion, and migration of ESCC were suppressed. The upregulated expression of hsa_circ_0001165 modulates the miR-381-3p/TNS3 axis and promotes aggressive phenotypes of ESCC. Hsa_circ_0001165 is regarded as a encouraging biomarker and potential therapeutic target for ESCC, presenting innovative options for both diagnostic and treatment approaches.
Insights
Circular RNAs (circRNAs) like hsa_circ_0001165 are elevated in esophageal squamous cell carcinoma (ESCC). This circRNA promotes ESCC progression by sponging miR-381-3p, making it a potential therapeutic target.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Esophageal squamous cell carcinoma (ESCC) presents a significant clinical challenge with limited effective therapeutic targets.
- Circular RNAs (circRNAs) play a critical role in the progression of various cancers, including ESCC.
Purpose of the Study:
- To investigate the role of hsa_circ_0001165 in esophageal squamous cell carcinoma (ESCC).
- To elucidate the molecular mechanisms underlying the function of hsa_circ_0001165 in ESCC progression.
Main Methods:
- High-throughput sequencing to profile circRNA expression in ESCC tissues and cell lines.
- In vitro and in vivo experiments to assess the functional impact of hsa_circ_0001165 knockdown.
- Mechanism assays including dual-luciferase reporter gene, RNA Immunoprecipitation, and RNA-pulldown to determine molecular interactions.
Main Results:
- hsa_circ_0001165 expression is significantly upregulated in ESCC tissues and cell lines, correlating with TNM staging.
- Knockdown of hsa_circ_0001165 inhibited ESCC cell proliferation, invasion, and migration in vitro and suppressed tumor growth in vivo.
- hsa_circ_0001165 acts as a molecular sponge for miR-381-3p, leading to increased TNS3 expression and promoting aggressive ESCC phenotypes.
Conclusions:
- Upregulated hsa_circ_0001165 promotes ESCC progression by modulating the miR-381-3p/TNS3 axis.
- hsa_circ_0001165 represents a promising biomarker and potential therapeutic target for esophageal squamous cell carcinoma.
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