circ-ZEB1 Enhances NSCLC Metastasis and Proliferation by Modulating the miR-491-5p/EIF5A Axis
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View abstract on PubMed
Summary
This summary is machine-generated.Circular RNA ZEB1 (circ-ZEB1) promotes non-small cell lung cancer (NSCLC) progression by regulating the miR-491-5p/EIF5A pathway. Downregulating circ-ZEB1 inhibits NSCLC cell proliferation and migration, suggesting its potential as a therapeutic target.
Area Of Science
- Molecular Biology
- Oncology
- RNA Biology
Background
- Circular RNAs (circRNAs) are implicated in cancer progression.
- circ-ZEB1 is abnormally expressed in liver cancer.
- The role of circ-ZEB1 in non-small cell lung cancer (NSCLC) remains unelucidated.
Purpose Of The Study
- To investigate the expression and function of circ-ZEB1 in NSCLC.
- To elucidate the underlying molecular mechanisms of circ-ZEB1 in NSCLC progression.
- To evaluate circ-ZEB1 as a potential therapeutic target for NSCLC.
Main Methods
- circ-ZEB1 expression was analyzed using fluorescence in situ hybridization (FISH) and RT-qPCR.
- Cell proliferation and migration were assessed via Transwell, EdU, and CCK8 assays.
- In vivo metastasis and tumorigenesis assays were conducted, alongside luciferase reporter assays to identify downstream targets.
Main Results
- circ-ZEB1 expression was significantly upregulated in NSCLC tissues and cells.
- Downregulation of circ-ZEB1 suppressed NSCLC cell proliferation and migration both in vitro and in vivo.
- circ-ZEB1 directly targets EIF5A and miR-491-5p, with EIF5A overexpression and miR-491-5p suppression reversing the effects of circ-ZEB1 silencing on migration.
Conclusions
- circ-ZEB1 promotes NSCLC malignant progression by regulating the miR-491-5p/EIF5A axis.
- circ-ZEB1 represents a potential diagnostic biomarker and therapeutic target for NSCLC.
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