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Jia S, Yu L, Wang L, Peng L. The functional significance of circRNA/miRNA/mRNA interactions as a regulatory network in lung cancer biology. Int J Biochem Cell Biol 2024; 169:106548. [PMID: 38360264 DOI: 10.1016/j.biocel.2024.106548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/22/2024] [Accepted: 02/02/2024] [Indexed: 02/17/2024]
Abstract
Lung cancer, the leading cause of cancer-related deaths, presents significant challenges to patients due to its poor prognosis. Recent research has increasingly implicated circular RNAs in the development and progression of lung cancer. These circular RNAs have been found to impact various aspects of tumor behavior, including proliferation, metastasis, cell cycle regulation, apoptosis, cancer stem cells, therapy response, and the tumor microenvironment. One of the key mechanisms by which circular RNAs exert their influence is through their ability to act as miRNA sponges, sequestering microRNAs and preventing them from targeting other RNA molecules. Accumulating evidence suggests that circular RNAs can function as competing endogenous RNAs, affecting the expression of target mRNAs by sequestering microRNAs. Dysregulation of competing endogenous RNAs networks involving circular RNAs, microRNAs, and mRNAs leads to the aberrant expression of oncogenes and tumor suppressors involved in lung cancer pathogenesis. Understanding the dynamic interplay and molecular mechanisms among circular RNAs, microRNAs, and mRNAs holds great promise for advancing early diagnosis, personalized therapeutic interventions, and improved patient outcomes in lung cancer. Therefore, this study aims to provide an in-depth exploration of the executive roles of circular RNAs/microRNAs/ mRNAs interactions in lung cancer pathogenesis and their potential utility for diagnosing lung cancer, predicting patient prognosis, and guiding targeted therapies. By offering a comprehensive overview of the dysregulation of the axes as driving factors in lung cancer, we aim to pave the way for their translation into clinical practice in the future.
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Affiliation(s)
- Shengnan Jia
- Department of Respiratory Medicine, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, China; Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - Ling Yu
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun 130041, China
| | - Lihui Wang
- Department of Respiratory Medicine, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, China.
| | - Liping Peng
- Department of Respiratory Medicine, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, China.
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2
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Liu X, Feng Y, Wang L, Shi L, Ji K, Hu N, Du Y, Liu M, Wang M. Silencing of circ_0088036 inhibits growth and invasion of lung adenocarcinoma through miR-203/SP1 axis. J Biochem Mol Toxicol 2024; 38:e23684. [PMID: 38533528 DOI: 10.1002/jbt.23684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 02/06/2024] [Accepted: 02/23/2024] [Indexed: 03/28/2024]
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide. Circular RNA (circRNA) circ_0088036 is a recently discovered circRNA known for its roles in rheumatoid arthritis. The study aimed to study the function of circ_0088036 in lung adenocarcinoma (LUAD). Circ_0088036 expressions were analyzed in the Gene Expression Omnibus (GEO) database. The relationship between circ_0088036 expressions and clinicopathological data of LUAD was assessed. The messenger RNA and protein levels were analyzed by quantitative real-time polymerase chain reaction and Western blot. Cell viability, apoptosis, and invasion were tested by Cell Counting Kit-8, flow cytometry, and transwell assay. The direct interaction between microRNA-203 (miR-203) and circ_0088036 or specificity protein 1 (SP1) was confirmed by dual-luciferase reporter assay, RNA pull-down, and RNA immunoprecipitation assays. Circ_0088036 was overexpressed in LUAD from the analysis of the GEO database. The poor prognosis was found in the patients with high expressions of circ_0088036. The level of Circ_0088036 was increased in LUAD tissues and cells. In terms of function, the deletion of circ_0088036 inhibited LUAD tumorigenesis in vitro by repressing cell growth, invasion, and epithelial-mesenchymal transition (EMT). In mechanism, circ_0088036 could competitively sponge miR-203, thereby affecting the expressions of the target gene SP1. In addition, lessening of miR-203 and enlarging of SP1 could eliminate the anticancer effect of short hairpin RNA-circ_0088036 on LUAD cells. Besides, the knockout of circ_0088036 hindered the growth of xenografted tumors in vivo. Circ_0088036 promoted the LUAD cell growth, invasion, and EMT via modulating the miR-203/SP1 axis in LUAD.
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Affiliation(s)
- Xiuhua Liu
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yan Feng
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Linna Wang
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Lei Shi
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Kunxiang Ji
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Nan Hu
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Yang Du
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Mingyang Liu
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Man Wang
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
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3
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Zhu S, Liao B. Mechanism of hypoxia-induced exosome circ_0051799 regulating the progression of lung adenocarcinoma. Biol Chem 2024; 405:143-160. [PMID: 37161917 DOI: 10.1515/hsz-2023-0108] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/05/2023] [Indexed: 05/11/2023]
Abstract
This study attempted to investigate the effect of circ_0051799 on the immune microenvironment of lung adenocarcinoma (LUAD) and the relationship between circ_0051799 and exosomes. The number and morphology of exosomes were verified by nanoparticle tracking, transmission electron microscopy and western blotting. CCK8, EdU, Transwell and flow cytometry were used to verify the regulatory role of exosomes and circ_0051799 on tumor progression. Dual luciferase reporting and RNA immunoprecipitation were used to verify the targeted regulatory relationship between circ_0051799, miR-214-3p and IGF2BP3. WB was used to verify the role of the JAK/STAT pathway in circ_0051799 regulation. Ectopic tumor grafts and in situ models were used to validate in vivo their role in regulating LUAD progression. Hypoxic environment could alter but does not alter its shape. Exosomes can participate in the regulation of macrophage polarization by circ_0051799. In vitro and in vivo assays had shown that circ_0051799 could affect the proliferation and metastasis of LUAD through targeting miR-214-3p mediated IGF2BP3 regulated JAK/STAT pathway. This study found that hypoxia can affect LUAD process by promoting the regulation of macrophage polarization by exosome circ_0051799.
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Affiliation(s)
- Shunping Zhu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of University of South China, Hengyang City 421001, Hunan Province, China
| | - Bihong Liao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of University of South China, Hengyang City 421001, Hunan Province, China
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Wang F, Yu C, Chen L, Xu S. Landscape of circular RNAs in different types of lung cancer and an emerging role in therapeutic resistance (Review). Int J Oncol 2022; 62:21. [PMID: 36562354 PMCID: PMC9812256 DOI: 10.3892/ijo.2022.5469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Lung cancer is one of the most common malignant tumor types and the leading cause of cancer‑associated death worldwide. Different types of lung cancer exhibit differences in terms of pathophysiology and pathogenesis, and also treatment and prognosis. Accumulating evidence has indicated that circular RNAs (circRNAs) are abnormally expressed among different types of lung cancer and confer important biological functions in progression and prognosis. However, studies comparing different circRNAs in lung cancer subtypes are scarce. Furthermore, circRNAs have an important role in drug resistance and are related to clinicopathological features in lung cancer. Summaries of the association of circRNAs with drug resistance are also scarce in the literature. The present study outlined the biological functions of circRNAs and focused on discriminating differential circRNA patterns and mechanisms in three different types of lung cancer. The emerging roles of circRNAs in the resistance to chemotherapy, targeted therapy, radiotherapy and immunotherapy were also highlighted. Understanding these aspects of circRNAs sheds light on novel physiological and pathophysiological processes of lung cancer and suggests the application of circRNAs as biomarkers for diagnosis and prognosis, as well as therapeutic resistance.
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Affiliation(s)
- Fan Wang
- National Key Laboratory of Medical Immunology and Institute of Immunology, Naval Medical University, Shanghai 200433, P.R. China
| | - Chuting Yu
- National Key Laboratory of Medical Immunology and Institute of Immunology, Naval Medical University, Shanghai 200433, P.R. China
| | - Ling Chen
- Department of Thoracic Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, P.R. China,Correspondence to: Dr Ling Chen, Department of Thoracic Surgery, Changhai Hospital, Naval Medical University, 800 Xiangyin Road, Shanghai 200433, P.R. China, E-mail:
| | - Sheng Xu
- National Key Laboratory of Medical Immunology and Institute of Immunology, Naval Medical University, Shanghai 200433, P.R. China,Professor Sheng Xu, National Key Laboratory of Medical Immunology and Institute of Immunology, Naval Medical University, 800 Xiangyin Road, Shanghai 200433, P.R. China, E-mail:
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5
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Circ-GSK3B up-regulates GSK3B to suppress the progression of lung adenocarcinoma. Cancer Gene Ther 2022; 29:1761-1772. [PMID: 35821283 DOI: 10.1038/s41417-022-00489-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 04/12/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023]
Abstract
GSK3B is the mRNA form of glycogen synthase kinase 3 beta (GSK-3β), which is a critical repressor of Wnt/β-catenin signaling pathway and generally inhibited in cancer cells. Plenty of researches have disclosed that circular RNAs, namely circRNAs exert important functions in the progression of various human malignancies including lung adenocarcinoma (LUAD). Therefore, we attempted to explore whether there existed certain circRNAs that could mediate LUAD development by regulating GSK3B expression and Wnt/β-catenin pathway. In the present research, circ-GSK3B (hsa_circ_0066903) was found to be significantly down-regulated in LUAD tissues and cells and it suppressed the proliferation, migration and stemness of LUAD cells. Furthermore, it was discovered that circ-GSK3B competitively sponged miR-3681-3p and miR-3909 to elevate GSK3B expression. Circ-GSK3B could impair the binding ability of FKBP51 to GSK-3β to inhibit the phosphorylation of GSK-3βS9, resulting in the inactivation of Wnt/β-catenin signaling. In addition, the regulatory effect of circ-GSK3B on LUAD tumorigenesis and cell progression was testified through in vitro and in vivo rescue experiments. In conclusion, circ-GSK3B suppressed LUAD development through up-regulating and activating GSK3B.
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Xue X, Chen Y. Circular RNA (circ)_0129047 upregulates bone morphogenetic protein receptor type 2 expression to inhibit lung adenocarcinoma progression by sponging microRNA (miR)-1206. Bioengineered 2022; 13:12067-12087. [PMID: 35570745 PMCID: PMC9275972 DOI: 10.1080/21655979.2022.2070580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Circular RNAs (circRNAs) play significant roles in the tumorigenesis and progression of various cancers, including lung adenocarcinoma (LAC). However, their underlying biological functions in LAC remain unclear. Here, we investigated the tumor suppressor role of the newly identified circRNA, circ_0129047, in LAC tumorigenesis and progression. The expression levels of circ_0129047, microRNA (miR)-1206, and bone morphogenetic protein receptor type 2 (BMPR2) mRNA in LAC cells and tissues were monitored using reverse transcription-quantitative polymerase chain reaction. Dual-luciferase reporter, RNA immunoprecipitation, and RNA pull-down assays were used to confirm the targeting relationships among circ_0129047, miR-1206, and BMPR2 mRNA. Functional experiments for A549 and PC9 cells were performed using cell counting kit-8, bromodeoxyuridine enzyme-linked immunosorbent, caspase-3 activity, cell adhesion, wound healing, and transwell assays. Circ_0129047 expression levels were reduced in LAC cells and tissues. Mechanistically, we discovered that circ_0129047 could sponge miR-1206, and miR-1206 could directly target BMPR2. In addition, circ_0129047 or BMPR2 knockdown facilitated the viability, proliferation, adhesion, migration, and invasion, while inhibiting the apoptosis of LAC cells. Furthermore, the inhibitory effects of circ_0129047 or BMPR2 overexpression on the malignant phenotype of LAC cells could be reversed by the overexpression of miR-1206. In conclusion, circ _0129047 was found to play a tumor suppressive role in LAC progression; it upregulated BMPR2 expression to inhibit LAC progression by sponging miR-1206. Abbreviations: non-small cell lung cancer (NSCLC); small cell lung cancer (SCLC); lung adenocarcinoma (LAC); Circular RNA (circRNA); MicroRNA (miRNA); bone morphogenetic protein (BMP); squamous cell lung cancer (SCC); RNA immunoprecipitation (RIP)
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Affiliation(s)
- Xinxin Xue
- Department of Respiratory and Critical Care Medicine, Wuhan Third Hospital & Tongren Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yajun Chen
- Department of Respiratory and Critical Care Medicine, Wuhan Third Hospital & Tongren Hospital of Wuhan University, Wuhan, Hubei, China
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Abstract
The wingless-related integration site (Wnt) signaling pathway plays an essential role in embryonic development and nervous system regulation. It is critically involved in multiple types of neuropathic pain (NP), such as HIV-related NP, cancer pain, diabetic neuralgia, multiple sclerosis-related NP, endometriosis pain, and other painful diseases. Wnt signaling is also implicated in the pain induced by sciatic nerve compression injury and selective spinal nerve ligation. Thus, the Wnt signaling pathway may be a potential therapeutic target for NP.
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Kaushik P, Kumar A. Emerging role and function of miR-198 in human health and diseases. Pathol Res Pract 2021; 229:153741. [PMID: 34952425 DOI: 10.1016/j.prp.2021.153741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 12/09/2021] [Accepted: 12/16/2021] [Indexed: 01/10/2023]
Abstract
Ever since their discovery, microRNAs (miRNAs/miRs) have astonished us by the plethora of processes they regulate, and thus adding another dimension to the gene regulation. They have been implicated in several diseases affecting cardiovascular, neurodegenerative, hepatic, autoimmune and inflammatory functions. A primate specific exonic miRNA, miR-198 has been vastly studied during the past decade, and shown to have a critical role in wound healing. The aberrant expression of miR-198 was first reported in schizophrenia, linking it to neural development. Later, its dysregulation and tumor suppressive role was reported in hepatocellular carcinoma. However, this was just a beginning, and after which there was an explosion of reports linking miR-198 deregulation to cancers and other ailments. The first target to be identified for miR-198 was Cyclin T1 in monocytes affecting HIV1 replication. Depending on the type of cancer, miR-198 has been shown to function either as a tumor suppressor or an oncomir. Interestingly, miR-198 is not only known to regulate multiple targets and pathways, but also is itself regulated by several circular RNAs and long-non-coding RNAs, highlighting a complex regulatory network. This review highlights the currently understood mechanism and regulation of miR-198 in different diseases, and its possible diagnostic and therapeutic potential.
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Affiliation(s)
- Pankhuri Kaushik
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India
| | - Arun Kumar
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India.
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Su L, Zhao J, Su H, Wang Y, Huang W, Jiang X, Gao S. CircRNAs in lung adenocarcinoma: diagnosis and therapy. Curr Gene Ther 2021; 22:15-22. [PMID: 34856899 DOI: 10.2174/1566523221666211202095258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/13/2021] [Accepted: 10/22/2021] [Indexed: 11/22/2022]
Abstract
Lung adenocarcinoma (LUAD) is the common histological subtype of non-small-cell lung carcinoma (NSCLC). Circular RNAs (circRNAs) represent a new class of non-coding RNAs (ncRNAs) involved in the development of cancer. Accumulating evidence indicated that a large number of circular RNAs were found to be involved in many biological processes, including tumor initiation, proliferation and progression. These circRNAs present great potentials as new biomarkers and vital targets for disease diagnosis and prognosis. In this review, we mainly focus on the differentially expressed circRNAs and their functions in the pathogenesis of LUAD, which makes it possible for the utility of circRNAs as novel biomarkers for early diagnosis and therapy. Especially, it is helpful to develop circRNAs as crucial therapeutic targets, thus providing a promising biomedical application in the field of cancer gene therapy.
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Affiliation(s)
- Lijia Su
- The Hubei Key Laboratory of Tumor Microenvironment and immunotherapy, China Three Gorges University, Yichang. China
| | - Jinying Zhao
- The Third-Grade Pharmacological Laboratory of Traditional Chinese Medicine (Approved by State Administration of Traditional Chinese Medicine), China Three Gorges University, Yichang. China
| | - Huahua Su
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang. China
| | - Yanhua Wang
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang. China
| | - Wenfeng Huang
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang. China
| | - Xuemei Jiang
- Department of Morphology, Medical Science College of China Three Gorges University, Yichang. China
| | - Shiyao Gao
- The Hubei provincial hospital of Traditional Chinese Medicine, Wuhan. China
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10
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Ren C, Zhang Z, Wang S, Zhu W, Zheng P, Wang W. Circular RNA hsa_circ_0001178 facilitates the invasion and metastasis of colorectal cancer through upregulating ZEB1 via sponging multiple miRNAs. Biol Chem 2021; 401:487-496. [PMID: 31747371 DOI: 10.1515/hsz-2019-0350] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/01/2019] [Indexed: 12/26/2022]
Abstract
Metastasis is the main cause of increasing cancer morbidity and mortality. However, the underlying mechanism of cancer metastasis remains largely unknown. In the present study, we identified one circular RNA (circRNA) closely related to the metastasis of colorectal cancer (CRC), namely hsa_circ_0001178. CRC patients with high hsa_circ_0001178 were more prone to have metastatic clinical features, advanced TNM stage and adverse prognosis. Stable knockdown of hsa_circ_0001178 significantly weakened CRC cell migratory and invasive capabilities in vitro as well as lung and liver metastases in vivo. Mechanistic study revealed that hsa_circ_0001178 acted as a competing endogenous RNA (ceRNA) for miR-382/587/616 to upregulate ZEB1 (a key trigger of epithelial-to-mesenchymal transition), thereby promoting CRC metastatic dissemination. Of note, ZEB1 could also increase hsa_circ_0001178 expression via physically binding to hsa_circ_0001178 promoter region. Collectively, our data uncover the crucial role of hsa_circ_0001178 in CRC metastasis, and targeted therapy based on this positive feedback ceRNA axis may be a promising treatment for metastatic CRC patients.
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Affiliation(s)
- Chunfeng Ren
- Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Dong Road, Erqi District, Zhengzhou 450003, P.R. China
| | - Zhenmin Zhang
- Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Dong Road, Erqi District, Zhengzhou 450003, P.R. China
| | - Shunhua Wang
- Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Dong Road, Erqi District, Zhengzhou 450003, P.R. China
| | - Weitao Zhu
- Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Dong Road, Erqi District, Zhengzhou 450003, P.R. China
| | - Peiguo Zheng
- Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Dong Road, Erqi District, Zhengzhou 450003, P.R. China
| | - Wanhai Wang
- Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Dong Road, Erqi District, Zhengzhou 450003, P.R. China
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Zhao S, Li S, Liu W, Wang Y, Li X, Zhu S, Lei X, Xu S. Circular RNA Signature in Lung Adenocarcinoma: A MiOncoCirc Database-Based Study and Literature Review. Front Oncol 2020; 10:523342. [PMID: 33163392 PMCID: PMC7581697 DOI: 10.3389/fonc.2020.523342] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 09/14/2020] [Indexed: 01/17/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of endogenous non-coding RNAs (ncRNAs) with a structure of covalently closed continuous loops, which can regulate gene expression by acting as a microRNA sponge or through other mechanisms. Recent studies have identified that the expression of candidate circRNAs are dysregulated in various tumors and hence are considered as promising diagnostic or therapeutic targets across cancer types. However, the expression and function of circRNAs in lung adenocarcinoma (LUAD) remains unclear. In this article, we investigated the expression of circRNAs in LUAD via MiOncoCirc, which is the first and comprehensive database characterizing circRNAs across >2,000 cancer samples using an exome capture RNA sequencing. We identified seven abnormally expressed circRNAs in LUAD, including circCDR1-AS, circHIPK3, circFNDC3B, circPCMTD1, circRHOBTB3, circFAM13B, and circMAN1A2, as well as conducted a literature review about the function and features of these circRNAs. Previous studies have demonstrated that circCDR1-AS, circMAN1A2, and circHIPK3 were upregulated and significantly correlated with a poor survival, or promoted the tumor progression in lung cancer, whereas other circRNAs have not been fully explored. Besides, we reviewed all the publications regarding circRNAs and LUAD, and noticed that the dysregulation of these circRNAs impacts the development of LUAD through a variety of regulatory mechanisms. In conclusion, the underlying mechanisms of aberrant expression and functions of circRNAs in LUAD are worthy of being further investigated.
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Affiliation(s)
- Shikang Zhao
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Shuo Li
- Department of Respiratory and Critical Care, Tianjin Medical University General Hospital, Tianjin, China
| | - Wei Liu
- Department of Respiratory Medicine, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yanye Wang
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiongfei Li
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Shuai Zhu
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Xi Lei
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Song Xu
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, China.,Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
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12
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Peng Z, Fang S, Jiang M, Zhao X, Zhou C, Gong Z. Circular RNAs: Regulatory functions in respiratory tract cancers. Clin Chim Acta 2020; 510:264-271. [PMID: 32710944 DOI: 10.1016/j.cca.2020.07.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 12/24/2022]
Abstract
Circular RNAs (circRNAs) are a class of single-stranded RNAs having a covalently closed loop structure generated from back-splicing of pre-mRNA. These novel RNAs are characterized by high stability, abundance and conservation. Accumulating evidence has revealed that circRNAs are intimately associated with the pathogenesis, development and progression of multiple human diseases, including respiratory tract cancers. CircRNAs may serve as oncogenes or tumor suppressors to influence cell proliferation, differentiation, apoptosis, invasion and metastasis. CircRNAs may act as microRNA (miRNA) sponges, interact with RNA-binding proteins (RBPs), regulate gene transcription and/or translate into mini-peptides or proteins. In this review, we discuss recent progress in understanding the pathologic roles of circRNAs in respiratory tract cancers, such as nasopharyngeal carcinoma, laryngeal squamous cell carcinoma, and especially lung adenocarcinoma. We further discuss the diagnostic, therapeutic and prognostic roles as potential biomarkers in respiratory tract cancers, providing insight into the possibilities of applying circRNAs as therapeutic targets and biomarkers in precision oncology.
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Affiliation(s)
- Ziyi Peng
- Department of Clinical Medicine, Ningbo University School of Medicine, Ningbo 315211, China
| | - Shuai Fang
- Department of Biochemistry and Molecular Biology, Ningbo University School of Medicine, Ningbo 315211, China; Zhejiang Province Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo 315211, China
| | - Meina Jiang
- Department of Biochemistry and Molecular Biology, Ningbo University School of Medicine, Ningbo 315211, China; Zhejiang Province Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo 315211, China
| | - Xiaodong Zhao
- Department of Clinical Medicine, Ningbo University School of Medicine, Ningbo 315211, China; Department of Thoracic Surgery, The Affiliated Hospital of Ningbo University School of Medicine, Ningbo 315020, China
| | - Chengwei Zhou
- Department of Clinical Medicine, Ningbo University School of Medicine, Ningbo 315211, China; Department of Thoracic Surgery, The Affiliated Hospital of Ningbo University School of Medicine, Ningbo 315020, China.
| | - Zhaohui Gong
- Department of Clinical Medicine, Ningbo University School of Medicine, Ningbo 315211, China; Department of Biochemistry and Molecular Biology, Ningbo University School of Medicine, Ningbo 315211, China; Zhejiang Province Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo 315211, China.
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13
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Liang ZZ, Guo C, Zou MM, Meng P, Zhang TT. circRNA-miRNA-mRNA regulatory network in human lung cancer: an update. Cancer Cell Int 2020; 20:173. [PMID: 32467668 PMCID: PMC7236303 DOI: 10.1186/s12935-020-01245-4] [Citation(s) in RCA: 135] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 05/07/2020] [Indexed: 02/07/2023] Open
Abstract
Circular RNAs, as hopeful diagnosis markers and therapeutic molecules, have been studied, probed and applied into several diseases, such as cardiovascular diseases, systemic lupus erythematosus, leukemia, pulmonary tuberculosis, and cancer especially. Recently, mounting evidence has supported that circRNAs play a key role in the tumorigenesis, progress, invasion and metastasis in lung cancer. Its special structure—3′–5′ covalent loop—allow it to execute several special functions in both normal eukaryotic cells and cancer cells. Our review summaries the latest studies on characteristics and biogenesis of circRNAs, and highlight the regulatory functions about miRNA sponge of lung-cancer-related circRNAs. In addition, the interaction of the circRNA-miRNA-mRNA regulatory network will also be elaborated in detail in this review. Therefore, this review can provide a new idea or strategy for further development and application in clinical setting in terms of early-diagnosis and better treatment.
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Affiliation(s)
- Zhuo-Zheng Liang
- 1Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630 China
| | - Cheng Guo
- 2Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Man-Man Zou
- 1Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630 China
| | - Ping Meng
- 1Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630 China
| | - Tian-Tuo Zhang
- 1Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630 China
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