ArticleThoracic cancer2021
Circular RNA circCPA4 promotes tumorigenesis by regulating miR-214-3p/TGIF2 in lung cancer.
Article in Thoracic cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 20 citations in OpenAlex.
- CPA4 overexpression correlates with poor prognosis and tumor progression in endometrial cancer.European journal of medical research · 2025Article
- Role of circular RNAs in cancer therapy resistance.Molecular cancer · 2025Review
- Circ_0082374 Promotes the Tumorigenesis and Suppresses Ferroptosis in Non-small Cell Lung Cancer by Up-Regulating GPX4 Through Sequestering miR-491-5p.Molecular biotechnology · 2025Article
- TMEM33, an oncogene regulated by miR-214-3p, promotes the progression of lung adenocarcinoma through the Wnt/β-catenin signaling pathway.Oncology research · 2025Article
- circRNA-CPA4 Regulates Cell Proliferation and Apoptosis of Non-small Cell Lung Cancer via the miR-1183/PDPK1 Axis.Biochemical genetics · 2024Article
- Circular RNAs in lung cancer: implications for preventing therapeutic resistance.EBioMedicine · 2024Review
- CircCOL1A1 promotes proliferation, migration, and invasion of colorectal cancer (CRC) cells and glutamine metabolism through GLS1 up-regulation by sponging miR-214-3p.Journal of cancer research and clinical oncology · 2024Article
- CircCPA4 induces ASCT2 expression to promote tumor property of non-small cell lung cancer cells in a miR-145-5p-dependent manner.Thoracic cancer · 2024Article
- The novel circRNA circ_0045881 inhibits cell proliferation and invasion by targeting mir-214-3p in triple-negative breast cancer.BMC cancer · 2024Article
- circNINL facilitates aerobic glycolysis, proliferation, invasion, and migration in lung cancer by sponging miR-3918 to mediate FGFR1 expression.European journal of medical research · 2024Article
- circCPA4 induces malignant behaviors of prostate cancer via miR-491-5p/SHOC2 feedback loop.Clinics (Sao Paulo, Brazil) · 2024Article
- Hsa_circ_0014784-induced YAP1 promoted the progression of pancreatic cancer by sponging miR-214-3p.Cell cycle (Georgetown, Tex.) · 2023Article
- Circular RNA circCPA4 promotes tumorigenesis by regulating miR-214-3p/TGIF2 in lung cancer.Thoracic cancer · 2021Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLung cancer is the most prevalent malignancy in adults. Circular RNA (circRNA) circCPA4 (hsa_circ_0082374) is highly expressed in non-small cell lung cancer (NSCLC). The purpose of this study was to explore the role and mechanism of circCPA4 in lung cancer.
methodsCircCPA4, linear CPA4, TGF-β-induced factor homeobox 2 (TGIF2), and microRNA-214-3p (miR-214-3p) levels were measured by real-time quantitative polymerase chain reaction (RT-qPCR). The protein levels of TGIF2, Beclin1, and p62 were assessed by western blot assay. Colony numbers, migration, invasion, apoptosis, and cell cycle progression were examined by colony formation, wound-healing, transwell, and flow cytometry assays, respectively. The binding relationship between miR-214-3p and circCPA4 or TGIF2 was predicted by StarBase or TargetScan and then verified by a dual-luciferase reporter, RNA immunoprecipitation (RIP), and RNA pulldown assays. The biological role of circCPA4 on lung tumor growth was assessed by a xenograft tumor model in vivo, and TGIF2 and ki-67 expression was assessed by immunohistochemistry.
resultsWe determined that CircCPA4 and TGIF2 were increased, and miR-214-3p was decreased in lung cancer tissues and cells. Functionally, circCPA4 knockdown could suppress colony formation, migration, invasion, cell cycle progression, and expedite apoptosis of lung cancer cells in vitro. Mechanically, circCPA4 could regulate TGIF2 expression by sponging miR-214-3p. In addition, circCPA4 deficiency inhibited the tumor growth in lung cancer in the mouse model.
conclusionsCircCPA4 could act as a sponge of miR-214-3p to upregulate TGIF2 expression, thereby promoting the progression of lung cancer cells. These findings suggested underlying therapeutic targets for the treatment of lung cancer.
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