» Articles » PMID: 37675591

CircPKM2 Aggravates the Progression of Non-small Cell Lung Cancer by Regulating MTDH Via MiR-1298-5p

Overview
Journal Thorac Cancer
Date 2023 Sep 7
PMID 37675591
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Non-small cell lung cancer (NSCLC) is the most common type of lung cancer with high morbidity and mortality. The role of dysregulated circular RNAs (circRNAs) in human diseases are receiving more and more attention. In this study, we focused on the role and mechanism of circPKM2 in the progression of NSCLC.

Methods: The expression levels of circPKM2, microRNA-1298-5p (miR-1298-5p) and metadherin (MTDH) in NSCLC were measured by real-time quantitative PCR (qRT-PCR) or Western blot. Cell counting kit-8 (CCK-8), colony formation, 5-ethynyl-2'-deoxyuridine (EdU) staining, flow cytometry, transwell and tube formation assays were conducted to evaluate the effects of circPKM2 on malignant phenotypes of NSCLC. Western blot was used to measure related marker protein levels.

Results: CircPKM2 and MTDH were highly expressed in NSCLC tissues and cells, while miR-1298-5p was downregulated. CircPKM2 knockdown effectively suppressed cell proliferation, migration, invasion and tube formation whereas induced apoptosis in vitro. CircPKM2 had a potential targeting site with miR-1298-5p and negatively regulated the expression of miR-1298-5p. MiR-1298-5p inhibitor reversed the effect of circPKM2 knockdown on the progression of NSCLC. CircPKM2 induced MTDH expression via sponging miR-1298-5p to promote the progression of NSCLC. MiR-1298-5p directly targeted MTDH, and the addition of MTDH partially attenuated the inhibition of miR-1298-5p on the progression of NSCLC. In addition, the downregulation of circPKM2 significantly slowed down the growth of xenograft tumors in vivo.

Conclusion: Our findings demonstrated that circPKM2 mediated NSCLC progression via regulating miR-1298-5p/MTDH axis, providing a novel therapeutic target for NSCLC.

Citing Articles

Roles and mechanisms of circular RNA in respiratory system cancers.

Yang N, Jiao M, Zhang Y, Mo S, Wang L, Liang J Front Oncol. 2024; 14:1430051.

PMID: 39077467 PMC: 11284073. DOI: 10.3389/fonc.2024.1430051.


CircPKM2 aggravates the progression of non-small cell lung cancer by regulating MTDH via miR-1298-5p.

Gao S, Gao T, Feng L, Li H, Dong G, Yang S Thorac Cancer. 2023; 14(30):3020-3031.

PMID: 37675591 PMC: 10599976. DOI: 10.1111/1759-7714.15092.

References
1.
Li Y, Xu C, He C, Pu H, Liu J, Wang Y . circMTDH.4/miR-630/AEG-1 axis participates in the regulation of proliferation, migration, invasion, chemoresistance, and radioresistance of NSCLC. Mol Carcinog. 2019; 59(2):141-153. DOI: 10.1002/mc.23135. View

2.
Lai X, Li J, Tang L, Chen W, Zhang L, Xiong L . MiRNAs and LncRNAs: Dual Roles in TGF-β Signaling-Regulated Metastasis in Lung Cancer. Int J Mol Sci. 2020; 21(4). PMC: 7072809. DOI: 10.3390/ijms21041193. View

3.
Xue M, Hong W, Jiang J, Zhao F, Gao X . Circular RNA circ-LDLRAD3 serves as an oncogene to promote non-small cell lung cancer progression by upregulating SLC1A5 through sponging miR-137. RNA Biol. 2020; 17(12):1811-1822. PMC: 7714484. DOI: 10.1080/15476286.2020.1789819. View

4.
Ning Z, Tian Y, Li Y, Zhao X, Zhang J, Wang C . Exosomal circ_0007385 enhances non-small cell lung cancer cell proliferation and stemness via regulating miR-1253/FAM83A axis. Anticancer Drugs. 2021; 33(1):61-74. DOI: 10.1097/CAD.0000000000001103. View

5.
Guan H, Sun C, Gu Y, Li J, Ji J, Zhu Y . Circular RNA circ_0003028 contributes to tumorigenesis by regulating GOT2 via miR-1298-5p in non-small cell lung cancer. Bioengineered. 2021; 12(1):2326-2340. PMC: 8806680. DOI: 10.1080/21655979.2021.1935064. View