ArticleFrontiers in oncology2021
Circular RNA CircPVT1 Inhibits 5-Fluorouracil Chemosensitivity by Regulating Ferroptosis Through MiR-30a-5p/FZD3 Axis in Esophageal Cancer Cells.
Article in Frontiers in oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
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Who cites it
48 citing papers in PubMed, 84 citations in OpenAlex.
- Review
- Non-coding RNAs as master regulators of ferroptosis in cancer: mechanisms and clinical implications.Molecular cancer · 2026Review
- The Transcriptional Role of Circular RNAs in Drug Resistance by Modulating the miRNA/mRNA Axis.Experientia supplementum (2012) · 2026Article
- Biomembrane-coated Nanoparticles Targeting circHIF1α Suppress Ovarian Cancer Metastasis and Cisplatin Resistance by Mediating System Xc⁻ Inactivation via SLC7A11/SLC3A2 to Induce Ferroptosis in Cancer Stem Cells.International journal of biological sciences · 2026Article
- Regulation of the Wnt/β-Catenin Signaling Pathway by Non-Coding RNAs in Esophageal Squamous Cell Carcinoma: Mechanisms, Translational Relevance, and Therapeutic Implications.Oncology research · 2026Review
- Ferroptosis and non-coding RNAs in lung cancer: exploring molecular mechanisms and diagnostic/therapeutic implications.Cancer cell international · 2025Review
- Exploring the role of ferroptosis in esophageal cancer: mechanisms and therapeutic implications.Cell death discovery · 2025Review
- Review
- The Molecular Interplay Between p53-Mediated Ferroptosis and Non-Coding RNAs in Cancer.International journal of molecular sciences · 2025Review
- Wnt Signaling and Circular RNAs in Esophageal and Gastric Cancers: Opportunities for Early Detection and Targeted Therapy.Journal of clinical medicine · 2025Review
- Epigenetic regulation of ferroptosis in gastrointestinal cancers (Review).International journal of molecular medicine · 2025Review
- The Potential Role of Egg-Derived Xeno-miRs in Chemotherapy Response: An In Silico Approach.Food science & nutrition · 2025Article
- U2AF65 mediated circPVT1 promotes NSCLC cell proliferation and inhibits ferroptosis through the miR-338-3p/GPX4 axis.Cell biology and toxicology · 2025Article
- Circular PVT1 promotes cardiac fibroblast activation interacting with miR-30a-5p and miR-125b-5p.Cell death & disease · 2025Article
- Blocking lncRNA NOP14-AS1 overcomes 5-Fu resistance of colon cancer cells by modulating miR-30a-5p-LDHA-glucose metabolism pathway.Discover oncology · 2025Article
- Wnt signaling in cancer: from biomarkers to targeted therapies and clinical translation.Molecular cancer · 2025Review
- Circular RNAs and Cancers.Advances in experimental medicine and biology · 2025Review
- Regulatory role of circular RNAs in the development of therapeutic resistance in the glioma: A double-edged sword.Iranian journal of basic medical sciences · 2025Review
- Harnessing the gut microbiome to modulate ferroptosis: a metabolic strategy for the treatment of digestive tract cancers.Frontiers in immunology · 2025Review
- CircPOLA2 sensitizes non-small cell lung cancer cells to ferroptosis and suppresses tumorigenesis via the Merlin-YAP signaling pathway.iScience · 2024Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCircPVT1 is demonstrated to promote cancer progression in esophageal squamous cell carcinoma (ESCC). However, the role and potential functional mechanisms of circPVT1 in regulating 5-fluorouracil (5-FU) chemosensitivity remain largely unknown.
methodsESCC cells resistant to 5-FU were induced with continuous increasing concentrations of 5-FU step-wisely. A cell counting kit-8 assay was used to analyze the viability of ESCC cells. LDH release assay kit was used to evaluate the cytotoxicity. RT-qPCR was used to assess the expression level of non-coding RNAs and cDNAs. Luciferase was used to confirm the interaction between non-coding RNAs and targets. Western blotting was used to detect the expression of downstream signaling proteins. Flow cytometry and ferroptosis detection assay kit were utilized to measure the ferroptosis of ESCC cells.
resultsCircPVT1 was significantly upregulated in ESCC cells resistant to 5-FU. Knockdown of circPVT1 enhanced the 5-FU chemosensitivity of ESCC cells resistant to 5-FU by increasing cytotoxicity and downregulating multidrug-resistant associated proteins, including P-gp and MRP1. Luciferase assay showed that circPVT1 acted as a sponge of miR-30a-5p, and Frizzled3 (FZD3) was a downstream target of miR-30a-5p. The enhanced 5-FU chemosensitivity by circPVT1 knockdown was reversed with miR-30a-5p inhibitor. Besides, the increased 5-FU chemosensitivity by miR-30a-5p mimics was reversed with FZD3 overexpression. Furthermore, knockdown of circPVT1 increased ferroptosis through downregulating p-β-catenin, GPX4, and SLC7A11 while miR-30a-5p inhibition and FZD3 overexpression reversed the phenotype by upregulating p-β-catenin, GPX4, and SLC7A11.
conclusionsThese results suggested a key role for circPVT1 in ESCC 5-FU-chemosensitivity in regulating the Wnt/β-catenin pathway and ferroptosis
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