Abstract
Background
Esophageal squamous cell carcinoma (ESCC) is one of the most common malignancies and frequent cause of cancer-related death worldwide. Long non-coding RNAs (lncRNAs) play regulatory roles and serve as biomarkers of multiple cancers, including ESCC. Our previous studies have confirmed that lncRNA Kinectin 1 antisense RNA 1 (KTN1-AS1) is highly expressed in ESCC and exerts oncogene function through RBBP4/HDAC1 complex.
Objective
Our present study focused on exploring a novel molecular mechanism of KTN1-AS1 in ESCC.
Methods
In this study, qRT-PCR assay, Western blot assay, Luciferase reporter assay, and RNA immunoprecipitation assay were conducted.
Results
We found that KTN1-AS1 could bind to miR-885-5p in ESCC cells, and miR-885-5p was low expressed in ESCC. Overexpression of miR-885-5p inhibited esophageal cancer cells proliferation and invasion in vitro. Mechanistic analysis demonstrated that miR-885-5p specifically targeted striatin 3 (STRN3), and KTN1-AS1/miR-885-5p promoted the EMT process by Hippo pathway in STRN3/YAP1 dependent manner.
Conclusion
To sum up, KTN1-AS1 facilitates ESCC progression by acting as a ceRNA for miR-885-5p to regulate STRN3 expression and the Hippo pathway, and KTN1-AS1 maybe used as a promising therapeutic target for ESCC.
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Data availability
The datasets analyzed during the current study are available from the corresponding author on reasonable request.
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Funding
This work was supported by Grants from the Natural Science Foundation of Hebei Province (no. H2021206259 and H2022206598) and National Natural Science Foundation of China (no. 82203622).
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All authors contributed to the study conception and design. Material preparation and data collection were performed by LC, JL, and XL. Data analysis was performed by XW and RQ. The first draft of the manuscript was written by LC and all authors commented on previous versions of the manuscript. Conception and revision of the manuscript were performed by WG and QR. All authors read and approved the final manuscript.
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This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of the Forth Hospital of Hebei Medical University.
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Chen, L., Lu, J., Li, X. et al. LncRNA KTN1-AS1 facilitates esophageal squamous cell carcinoma progression via miR-885-5p/STRN3 axis. Genes Genom 46, 241–252 (2024). https://doi.org/10.1007/s13258-023-01451-0
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DOI: https://doi.org/10.1007/s13258-023-01451-0