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Mafi A, Hedayati N, Kahkesh S, Khoshayand S, Alimohammadi M, Farahani N, Hushmandi K. The landscape of circRNAs in gliomas temozolomide resistance: Insights into molecular pathways. Noncoding RNA Res 2024; 9:1178-1189. [PMID: 39022676 PMCID: PMC11250881 DOI: 10.1016/j.ncrna.2024.05.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/01/2024] [Accepted: 05/20/2024] [Indexed: 07/20/2024] Open
Abstract
As the deadliest type of primary brain tumor, gliomas represent a significant worldwide health concern. Circular RNA (circRNA), a unique non-coding RNA molecule, seems to be one of the most alluring target molecules involved in the pathophysiology of many kinds of cancers. CircRNAs have been identified as prospective targets and biomarkers for the diagnosis and treatment of numerous disorders, particularly malignancies. Recent research has established a clinical link between temozolomide (TMZ) resistance and certain circRNA dysregulations in glioma tumors. CircRNAs may play a therapeutic role in controlling or overcoming TMZ resistance in gliomas and may provide guidance for a novel kind of individualized glioma therapy. To address the biological characteristics of circRNAs and their potential to induce resistance to TMZ, this review has highlighted and summarized the possible roles that circRNAs may play in molecular pathways of drug resistance, including the Ras/Raf/ERK PI3K/Akt signaling pathway and metabolic processes in gliomas.
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Affiliation(s)
- Alireza Mafi
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Samaneh Kahkesh
- Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Sara Khoshayand
- School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mina Alimohammadi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Najma Farahani
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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2
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Zhang N, Wu P, Mu M, Niu C, Hu S. Exosomal circZNF800 Derived from Glioma Stem-like Cells Regulates Glioblastoma Tumorigenicity via the PIEZO1/Akt Axis. Mol Neurobiol 2024; 61:6556-6571. [PMID: 38324181 PMCID: PMC11338982 DOI: 10.1007/s12035-024-04002-0] [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: 08/05/2023] [Accepted: 01/30/2024] [Indexed: 02/08/2024]
Abstract
Exosomes play a crucial role in regulating crosstalk between tumor and tumor stem-like cells through their cargo molecules. Circular RNAs (circRNAs) have recently been demonstrated to be critical factors in tumorigenesis. This study focuses on the molecular mechanism by which circRNAs from glioma stem-like cell (GSLC) exosomes regulate glioblastoma (GBM) tumorigenicity. In this study, we validated that GSLC exosomes accelerated the malignant phenotype of GBM. Subsequently, we found that circZNF800 was highly expressed in GSLC exosomes and was negatively associated with GBM patients. CircZNF800 promoted GBM cell proliferation and migration and inhibited GBM cell apoptosis in vitro. Silencing circZNF800 could improve the GBM xenograft model survival rate. Mechanistic studies revealed that circZNF800 activated the PIEZO1/Akt signaling pathway by sponging miR-139-5p. CircZNF800 derived from GSLC exosomes promoted GBM cell tumorigenicity and predicted poor prognosis in GBM patients. CircZNF800 has the potential to serve as a promising target for further therapeutic exploration.
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Affiliation(s)
- Ning Zhang
- Department of Neurosurgery, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, 230001, People's Republic of China
- Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, People's Republic of China
| | - Pengfei Wu
- Department of Neurosurgery, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, 230001, People's Republic of China
- Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, People's Republic of China
| | - Maolin Mu
- Department of Neurosurgery, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, 230001, People's Republic of China
- Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, People's Republic of China
| | - Chaoshi Niu
- Department of Neurosurgery, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, 230001, People's Republic of China.
- Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, People's Republic of China.
- Anhui Provincial Stereotactic Neurosurgical Institute, Hefei, Anhui, 230001, People's Republic of China.
- Anhui Provincial Clinical Research Center for Neurosurgical Disease, Hefei, Anhui, 230001, People's Republic of China.
| | - Shanshan Hu
- Department of Neurosurgery, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, 230001, People's Republic of China.
- Anhui Key Laboratory of Brain Function and Diseases, Hefei, Anhui, 230001, People's Republic of China.
- Anhui Provincial Stereotactic Neurosurgical Institute, Hefei, Anhui, 230001, People's Republic of China.
- Anhui Provincial Clinical Research Center for Neurosurgical Disease, Hefei, Anhui, 230001, People's Republic of China.
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3
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Yang Q, Cai B, Zhu S, Tai G, Shen A. Identification and Validation of MYADM as a Novel Prognostic Marker Related to EMT in ESCC. J Cancer 2024; 15:5351-5366. [PMID: 39247591 PMCID: PMC11375559 DOI: 10.7150/jca.88767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 07/15/2024] [Indexed: 09/10/2024] Open
Abstract
Background: Esophageal squamous cell carcinoma (ESCC), one of the most aggressive gastrointestinal malignancies, remains an enormous challenge in terms of medical treatment and prognostic improvement. Based on the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases in R language, the myeloid-associated differentiation marker (MYADM) was confirmed using bioinformatics analysis and experimental verification. MYADM is upregulated in multiple cancer types; however, the oncogenic mechanism by which MYADM promotes ESCC remains largely unknown. Methods: In the present study, we used weighted gene coexpression network analysis to filter four hub genes (AKAP12, ITGA1, JAM2, and MYADM) in GSE45670 and GSE23400 that are related to the malignant progression of ESCC. Transcription factors and target miRNAs of the hub genes were predicted using the TarBase and JASPRAR databases, respectively, and a regulatory network was established. MYADM was selected based on the analysis of expression differences and prognostic value in ESCC. Next, we confirmed the level of MYADM in ESCC samples using immunohistochemistry of the tissue microarray. The molecular mechanisms of MYADM were further elucidated by experimental analyses, including Transwell assays, wound healing assays, and CCK8. Results: The correlation between MYADM levels and the clinical data of patients with ESCC was confirmed, including tumor differentiation, the node and metastasis stage, T stage, lymphatic metastasis, and postoperative distant metastasis. MYADM was significantly upregulated in ESCC and positively correlated with overall survival. MYADM induced cell proliferation, migration, invasion, and wound healing via the epithelial to mesenchymal transition (EMT) pathway in multiple experiments. Moreover, our results supported the hypothesis that MYADM promotes EMT during paclitaxel resistance. Conclusion: MYADM is closely correlated with ESCC progression, metastasis, and paclitaxel resistance and could be regarded as a novel biomarker and therapeutic target for ESCC patients.
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Affiliation(s)
- Qiuxing Yang
- Cancer Research Center Nantong, Nantong Tumor Hospital, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Bo Cai
- Nantong Center for Disease Control and Prevention Institute of Chronic Noncommunicable Diseases Prevention and Control, Nantong, China
| | - Shudong Zhu
- Cancer Research Center Nantong, Nantong Tumor Hospital, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Guomei Tai
- Department of Radiotherapy, Nantong Tumor Hospital, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Aiguo Shen
- Cancer Research Center Nantong, Nantong Tumor Hospital, Affiliated Tumor Hospital of Nantong University, Nantong, China
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Goleij P, Pourali G, Raisi A, Ravaei F, Golestan S, Abed A, Razavi ZS, Zarepour F, Taghavi SP, Ahmadi Asouri S, Rafiei M, Mousavi SM, Hamblin MR, Talei S, Sheida A, Mirzaei H. Role of Non-coding RNAs in the Response of Glioblastoma to Temozolomide. Mol Neurobiol 2024:10.1007/s12035-024-04316-z. [PMID: 39023794 DOI: 10.1007/s12035-024-04316-z] [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: 11/27/2023] [Accepted: 06/16/2024] [Indexed: 07/20/2024]
Abstract
Chemotherapy and radiotherapy are widely used in clinical practice across the globe as cancer treatments. Intrinsic or acquired chemoresistance poses a significant problem for medical practitioners and researchers, causing tumor recurrence and metastasis. The most dangerous kind of malignant brain tumor is called glioblastoma multiforme (GBM) that often recurs following surgery. The most often used medication for treating GBM is temozolomide chemotherapy; however, most patients eventually become resistant. Researchers are studying preclinical models that accurately reflect human disease and can be used to speed up drug development to overcome chemoresistance in GBM. Non-coding RNAs (ncRNAs) have been shown to be substantial in regulating tumor development and facilitating treatment resistance in several cancers, such as GBM. In this work, we mentioned the mechanisms of how different ncRNAs (microRNAs, long non-coding RNAs, circular RNAs) can regulate temozolomide chemosensitivity in GBM. We also address the role of these ncRNAs encapsulated inside secreted exosomes.
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Affiliation(s)
- Pouya Goleij
- Department of Genetics, Faculty of Biology, Sana Institute of Higher Education, Sari, Iran
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ghazaleh Pourali
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arash Raisi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Ravaei
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Shahin Golestan
- Department of Ophthalmology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atena Abed
- Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Zahra Sadat Razavi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Zarepour
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Pouya Taghavi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Sahar Ahmadi Asouri
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Moein Rafiei
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Mojtaba Mousavi
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Michael R Hamblin
- Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa
| | - Sahand Talei
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Amirhossein Sheida
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran.
| | - Hamed Mirzaei
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Uthanaphun T, Manochantr S, Tantrawatpan C, Tantikanlayaporn D, Kheolamai P. PL-hMSC and CH-hMSC derived soluble factors inhibit proliferation but improve hGBM cell migration by activating TGF-β and inhibiting Wnt signaling. Biosci Rep 2024; 44:BSR20231964. [PMID: 38687607 PMCID: PMC11130542 DOI: 10.1042/bsr20231964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 03/18/2024] [Accepted: 04/30/2024] [Indexed: 05/02/2024] Open
Abstract
Glioblastoma multiforme (GBM) is one of the most common and aggressive brain tumors. GBM resists most chemotherapeutic agents, resulting in a high mortality rate in patients. Human mesenchymal stem cells (hMSCs), which are parts of the cancer stroma, have been shown to be involved in the development and progression of GBM. However, different sources of hMSCs might affect GBM cells differently. In the present study, we established hMSCs from placenta (PL-hMSC) and chorion (CH-hMSC) to study the effects of their released soluble factors on the proliferation, migration, invasion, gene expression, and survival of human GBM cells, U251. We found that the soluble factors derived from CH-hMSCs and PL-hMSCs suppressed the proliferation of U251 cells in a dose-dependent manner. In contrast, soluble factors derived from both hMSC sources increased U251 migration without affecting their invasive property. The soluble factors derived from these hMSCs decreased the expression levels of CyclinD1, E2Fs and MYC genes that promote GBM cell proliferation but increased the expression level of TWIST gene, which promotes EMT and GBM cell migration. The functional study suggests that both hMSCs might exert their effects, at least in part, by activating TGF-β and suppressing Wnt/β-catenin signaling in U251 cells. Our study provides a better understanding of the interaction between GBM cells and gestational tissue-derived hMSCs. This knowledge might be used to develop safer and more effective stem cell therapy that improves the survival and quality of life of patients with GBM by manipulating the interaction between hMSCs and GBM cells.
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Affiliation(s)
- Tanawat Uthanaphun
- Master of Science Program in Stem Cell and Molecular Biology, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
| | - Sirikul Manochantr
- Center of Excellence in Stem Cell Research and Innovation, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
- Division of Cell Biology, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
| | - Chairat Tantrawatpan
- Center of Excellence in Stem Cell Research and Innovation, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
- Division of Cell Biology, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
| | - Duangrat Tantikanlayaporn
- Center of Excellence in Stem Cell Research and Innovation, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
- Division of Cell Biology, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
| | - Pakpoom Kheolamai
- Center of Excellence in Stem Cell Research and Innovation, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
- Division of Cell Biology, Faculty of Medicine, Thammasat University, Pathumthani 12120, Thailand
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Jegathesan Y, Stephen PP, Sati ISEE, Narayanan P, Monif M, Kamarudin MNA. MicroRNAs in adult high-grade gliomas: Mechanisms of chemotherapeutic resistance and their clinical relevance. Biomed Pharmacother 2024; 172:116277. [PMID: 38377734 DOI: 10.1016/j.biopha.2024.116277] [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: 11/16/2023] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 02/22/2024] Open
Abstract
Notorious for its high mortality rate, the current standard treatment for high-grade gliomas remains a challenge. This is largely due to the complex heterogeneity of the tumour coupled with dysregulated molecular mechanisms leading to the development of drug resistance. In recent years, microRNAs (miRNAs) have been considered to provide important information about the pathogenesis and prognostication of gliomas. miRNAs have been shown to play a specific role in promoting oncogenesis and regulating resistance to anti-glioma therapeutic agents through diverse cellular mechanisms. These include regulation of apoptosis, alterations in drug efflux pathways, enhanced activation of oncogenic signalling pathways, Epithelial-Mesenchymal Transition-like process (EMT-like) and a few others. With this knowledge, upregulation or inhibition of selected miRNAs can be used to directly affect drug resistance in glioma cells. Moreover, the clinical use of miRNAs in glioma management is becoming increasingly valuable. This comprehensive review delves into the role of miRNAs in drug resistance in high-grade gliomas and underscores their clinical significance. Our analysis has identified a distinct cluster of oncogenic miRNAs (miR-9, miR-21, miR-26a, miR-125b, and miR-221/222) and tumour suppressive miRNAs (miR-29, miR-23, miR-34a-5p, miR 181b-5p, miR-16-5p, and miR-20a) that consistently emerge as key players in regulating drug resistance across various studies. These miRNAs have demonstrated significant clinical relevance in the context of resistance to anti-glioma therapies. Additionally, the clinical significance of miRNA analysis is emphasised, including their potential to serve as clinical biomarkers for diagnosing, staging, evaluating prognosis, and assessing treatment response in gliomas.
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Affiliation(s)
- Yugendran Jegathesan
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor 47500, Malaysia; Taiping Hospital, Jalan Taming Sari, Perak, Taiping 34000, Malaysia
| | - Pashaun Paveen Stephen
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor 47500, Malaysia; Coffs Harbour Health Campus, Coffs Harbour, NSW 2450, Australia
| | - Isra Saif Eldin Eisa Sati
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor 47500, Malaysia
| | - Prakrithi Narayanan
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor 47500, Malaysia
| | - Mastura Monif
- Department of Neuroscience, Central Clinical School, Monash University, VIC, Melbourne, Australia; Department of Physiology, The University of Melbourne, Melbourne, VIC, Australia; Department of Neurology, The Royal Melbourne Hospital, Melbourne, VIC, Australia; Department of Neurology, The Alfred, Melbourne, VIC, Australia
| | - Muhamad Noor Alfarizal Kamarudin
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor 47500, Malaysia.
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Rezaee A, Tehrany PM, Tirabadi FJ, Sanadgol N, Karimi AS, Ajdari A, Eydivandi S, Etemad S, Rajabi R, Rahmanian P, Khorrami R, Nabavi N, Aref AR, Fan X, Zou R, Rashidi M, Zandieh MA, Hushmandi K. Epigenetic regulation of temozolomide resistance in human cancers with an emphasis on brain tumors: Function of non-coding RNAs. Biomed Pharmacother 2023; 165:115187. [PMID: 37499452 DOI: 10.1016/j.biopha.2023.115187] [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: 05/05/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023] Open
Abstract
Brain tumors, which are highly malignant, pose a significant threat to health and often result in substantial rates of mortality and morbidity worldwide. The brain cancer therapy has been challenging due to obstacles such as the BBB, which hinders effective delivery of therapeutic agents. Additionally, the emergence of drug resistance further complicates the management of brain tumors. TMZ is utilized in brain cancer removal, but resistance is a drawback. ncRNAs are implicated in various diseases, and their involvement in the cancer is particularly noteworthy. The focus of the current manuscript is to explore the involvement of ncRNAs in controlling drug resistance, specifically in the context of resistance to the chemotherapy drug TMZ. The review emphasizes the function of ncRNAs, particularly miRNAs, in modulating the growth and invasion of brain tumors, which significantly influences their response to TMZ treatment. Through their interactions with various molecular pathways, miRNAs are modulators of TMZ response. Similarly, lncRNAs also associate with molecular pathways and miRNAs, affecting the efficacy of TMZ chemotherapy. Given their functional properties, lncRNAs can either induce or suppress TMZ resistance in brain tumors. Furthermore, circRNAs, which are cancer controllers, regulate miRNAs by acting as sponges, thereby impacting the response to TMZ chemotherapy. The review explores the correlation between ncRNAs and TMZ chemotherapy, shedding light on the underlying molecular pathways involved in this process.
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Affiliation(s)
- Aryan Rezaee
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | | | - Farimah Jafari Tirabadi
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran.
| | - Negin Sanadgol
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Asal Sadat Karimi
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Atra Ajdari
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Sepideh Eydivandi
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Sara Etemad
- Faculty of Veterinary Medicine, Islamic Azad University, Garmsar Branch, Semnan, Iran.
| | - Romina Rajabi
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran.
| | - Parham Rahmanian
- Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran.
| | - Ramin Khorrami
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC V6H3Z6, Canada.
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA; Translational Sciences, Xsphera Biosciences Inc. 6, Tide Street, Boston, MA 02210, USA.
| | - Xiaoping Fan
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China; The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China.
| | - Rongjun Zou
- Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China; The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, China.
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Mohammad Arad Zandieh
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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8
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Li J, Ma J, Huang S, Li J, Zhou L, Sun J, Chen L. Circ TTLL13 Promotes TMZ Resistance in Glioma via Modulating OLR1-Mediated Activation of the Wnt/β-Catenin Pathway. Mol Cell Biol 2023; 43:354-369. [PMID: 37427890 PMCID: PMC10348032 DOI: 10.1080/10985549.2023.2210032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/19/2023] [Indexed: 07/11/2023] Open
Abstract
Glioma, originating from neuroglial progenitor cells, is a type of intrinsic brain tumor with poor prognosis. temozolomide (TMZ) is the first-line chemotherapeutic agent for glioma. Exploring the mechanisms of circTTLL13 underlying TMZ resistance in glioma is of great significance to improve glioma treatment. Bioinformatics was adopted to identify target genes. The circular structure of circTTLL13 and its high expression in glioma cells were disclosed by quantitative real time-PCR (qRT-PCR) and PCR-agarose gel electrophoresis. Functional experiments proved that oxidized LDL receptor 1 (OLR1) promotes TMZ resistance of glioma cells. CircTTLL13 enhances TMZ resistance of glioma cells via modulating OLR1. Luciferase reporter, RNA-binding protein immunoprecipitation (RIP), RNA pulldown, mRNA stability, N6-methyladenosine (m6A) dot blot and RNA total m6A quantification assays were implemented, indicating that circTTLL13 stabilizes OLR1 mRNA via recruiting YTH N6-methyladenosine RNA binding protein 1 (YTHDF1) and promotes m6A methylation of OLR1 pre-mRNA through recruiting methyltransferase-like 3 (METTL3). TOP/FOP-flash reporter assay and western blot verified that circTTLL13 activates Wnt/β-catenin signaling pathway by regulating OLR1. CircTTLL13 promotes TMZ resistance in glioma through regulating OLR1-mediated Wnt/β-catenin pathway activation. This study offers an insight into the efficacy improvement of TMZ for glioma treatment.
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Affiliation(s)
- Jun Li
- Department of Neurosurgery, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Junfeng Ma
- Department of Neurosurgery, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Shan Huang
- Department of Neurosurgery, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Jun Li
- Department of Neurosurgery, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Liang Zhou
- Department of Neurosurgery, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Jiahua Sun
- Department of Neurosurgery, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Lin Chen
- Department of Neurosurgery, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
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Hu J, Zhang G, Wang Y, Xu K, Chen L, Luo G, Xu J, Li H, Pei D, Zhao X, Guo Z, Li X, Zong S, Jiang Y, Jing Z. CircGNB1 facilitates the malignant phenotype of GSCs by regulating miR-515-5p/miR-582-3p-XPR1 axis. Cancer Cell Int 2023; 23:132. [PMID: 37407973 DOI: 10.1186/s12935-023-02970-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 06/12/2023] [Indexed: 07/07/2023] Open
Abstract
Glioma is the most common and aggressive primary malignant brain tumor. Circular RNAs (circRNAs) and RNA-binding proteins (RBPs) have been verified to mediate diverse biological behaviors in various human cancers. Therefore, the aim of this study was to explore a novel circRNA termed circGNB1 and elucidate relative molecular mechanism in functional phenotypes, which might be a potential prognostic biomarker and therapeutic approach for glioma. CircGNB1 was upregulated in glioma and closely associated with the low poor prognosis. Functional assays demonstrated that circGNB1 overexpression promoted glioma stem cells (GSCs) viability proliferation, invasion, and neurosphere formation. Mechanistically, circGNB1 upregulated the expression of oncogene XPR1 via sponging miR-515-5p and miR-582-3p. The following experiments proved XPR1 could promote the malignant phenotype of GSCs via upregulating IL6 expression and activating JAK2/STAT3 signaling. Moreover, the RNA binding protein IGF2BP3 could bind to and maintain the stability of circGNB1, thus promoting the effects of circGNB1 on GSCs. Our study reveals that circGNB1 plays a crucial role in promoting tumorigenesis and malignant progression in glioma, which provides a promising cancer biomarker.
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Affiliation(s)
- Jinpeng Hu
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Guoqing Zhang
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Yongfeng Wang
- Department of Radiology, The First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Kai Xu
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Lian Chen
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Gang Luo
- Liaoning Maternal and Child Health Hospital, No. 240 Shayang Road, Shenyang, 110005, People's Republic of China
| | - Jinkun Xu
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Hao Li
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Dongmei Pei
- Department of Health Management, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Xiang Zhao
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Zhengting Guo
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Xinqiao Li
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Shengliang Zong
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Yang Jiang
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, People's Republic of China.
| | - Zhitao Jing
- Department of Neurosurgery, The First Hospital of China Medical University, No. 155 North Nanjing Street, Shenyang, 110001, People's Republic of China.
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10
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Kciuk M, Yahya EB, Mohamed MMI, Abdulsamad MA, Allaq AA, Gielecińska A, Kontek R. Insights into the Role of LncRNAs and miRNAs in Glioma Progression and Their Potential as Novel Therapeutic Targets. Cancers (Basel) 2023; 15:3298. [PMID: 37444408 DOI: 10.3390/cancers15133298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Accumulating evidence supports that both long non-coding and micro RNAs (lncRNAs and miRNAs) are implicated in glioma tumorigenesis and progression. Poor outcome of gliomas has been linked to late-stage diagnosis and mostly ineffectiveness of conventional treatment due to low knowledge about the early stage of gliomas, which are not possible to observe with conventional diagnostic approaches. The past few years witnessed a revolutionary advance in biotechnology and neuroscience with the understanding of tumor-related molecules, including non-coding RNAs that are involved in the angiogenesis and progression of glioma cells and thus are used as prognostic biomarkers as well as novel therapeutic targets. The emerging research on lncRNAs and miRNAs highlights their crucial role in glioma progression, offering new insights into the disease. These non-coding RNAs hold significant potential as novel therapeutic targets, paving the way for innovative treatment approaches against glioma. This review encompasses a comprehensive discussion about the role of lncRNAs and miRNAs in gene regulation that is responsible for the promotion or the inhibition of glioma progression and collects the existing links between these key cancer-related molecules.
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Affiliation(s)
- Mateusz Kciuk
- Department of Molecular Biotechnology and Genetics, University of Lodz, 90-237 Lodz, Poland
- Doctoral School of Exact and Natural Sciences, University of Lodz, 90-237 Lodz, Poland
| | - Esam Bashir Yahya
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
| | | | - Muhanad A Abdulsamad
- Department of Molecular Biology, Faculty of Science, Sabratha University, Sabratha 00218, Libya
| | - Abdulmutalib A Allaq
- Faculty of Applied Science, Universiti Teknologi MARA, Shah Alam 40450, Malaysia
| | - Adrianna Gielecińska
- Department of Molecular Biotechnology and Genetics, University of Lodz, 90-237 Lodz, Poland
- Doctoral School of Exact and Natural Sciences, University of Lodz, 90-237 Lodz, Poland
| | - Renata Kontek
- Department of Molecular Biotechnology and Genetics, University of Lodz, 90-237 Lodz, Poland
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11
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Verhoeff TJ, Holloway AF, Dickinson JL. Non-coding RNA regulation of integrins and their potential as therapeutic targets in cancer. Cell Oncol (Dordr) 2023; 46:239-250. [PMID: 36512308 PMCID: PMC10060301 DOI: 10.1007/s13402-022-00752-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Integrins are integral to cell signalling and management of the extracellular matrix, and exquisite regulation of their expression is essential for a variety of cell signalling pathways, whilst disordered regulation is a key driver of tumour progression and metastasis. Most recently non-coding RNAs in the form of micro-RNA (miRNA) and long non-coding RNA (lncRNA) have emerged as a key mechanism by which tissue dependent gene expression is controlled. Whilst historically these molecules have been poorly understood, advances in 'omic' technologies and a greater understanding of non-coding regions of the genome have revealed that non-coding RNAs make up a large proportion of the transcriptome. CONCLUSIONS AND PERSPECTIVES This review examines the regulation of integrin genes by ncRNAs, provides and overview of their mechanism of action and highlights how exploitation of these discoveries is informing the development of novel chemotherapeutic agents in the treatment of cancer. MiRNA molecules have been the most extensively characterised and negatively regulate most integrin genes, classically regulating genes through binding to recognition sequences in the mRNA 3'-untranslated regions of gene transcripts. LncRNA mechanisms of action are now being elucidated and appear to be more varied and complex, and may counter miRNA molecules, directly engage integrin mRNA transcripts, and guide or block both transcription factors and epigenetic machinery at integrin promoters or at other points in integrin regulation. Integrins as therapeutic targets are of enormous interest given their roles as oncogenes in a variety of tumours, and emerging therapeutics mimicking ncRNA mechanisms of action are already being trialled.
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Affiliation(s)
- Tristan Joseph Verhoeff
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia
| | - Adele F Holloway
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia
| | - Joanne L Dickinson
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia.
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12
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Dysregulation of Serum MicroRNA after Intracerebral Hemorrhage in Aged Mice. Biomedicines 2023; 11:biomedicines11030822. [PMID: 36979801 PMCID: PMC10044892 DOI: 10.3390/biomedicines11030822] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 03/12/2023] Open
Abstract
Stroke is one of the most common diseases that leads to brain injury and mortality in patients, and intracerebral hemorrhage (ICH) is the most devastating subtype of stroke. Though the prevalence of ICH increases with aging, the effect of aging on the pathophysiology of ICH remains largely understudied. Moreover, there is no effective treatment for ICH. Recent studies have demonstrated the potential of circulating microRNAs as non-invasive diagnostic and prognostic biomarkers in various pathological conditions. While many studies have identified microRNAs that play roles in the pathophysiology of brain injury, few demonstrated their functions and roles after ICH. Given this significant knowledge gap, the present study aims to identify microRNAs that could serve as potential biomarkers of ICH in the elderly. To this end, sham or ICH was induced in aged C57BL/6 mice (18–24 months), and 24 h post-ICH, serum microRNAs were isolated, and expressions were analyzed. We identified 28 significantly dysregulated microRNAs between ICH and sham groups, suggesting their potential to serve as blood biomarkers of acute ICH. Among those microRNAs, based on the current literature, miR-124-3p, miR-137-5p, miR-138-5p, miR-219a-2-3p, miR-135a-5p, miR-541-5p, and miR-770-3p may serve as the most promising blood biomarker candidates of ICH, warranting further investigation.
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13
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Wang Z, Liu Z, Wang S, Bing X, Ji X, He D, Han M, Wei Y, Wang C, Xia Q, Yang J, Gao J, Yin X, Wang Z, Shang Z, Xu J, Xin T, Liu Q. Implantation of hydrogel-liposome nanoplatform inhibits glioblastoma relapse by inducing ferroptosis. Asian J Pharm Sci 2023. [DOI: 10.1016/j.ajps.2023.100800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
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14
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Roles of circular RNAs in regulating the development of glioma. J Cancer Res Clin Oncol 2023; 149:979-993. [PMID: 35776196 DOI: 10.1007/s00432-022-04136-5] [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: 03/30/2022] [Accepted: 06/13/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND Glioma is the most common malignant tumor in the central nervous system. In patients with glioma, the prognosis is poor and median survival is only 12-15 months. With the recent development of sequencing technology, important roles of noncoding RNAs are being discovered in cells, especially those of circular RNAs (circRNAs). Because circRNAs are stable, abundant, and highly conserved, they are regarded as novel biomarkers in the early diagnosis and prognosis of diseases. PURPOSE In this review, roles and mechanisms of circRNAs in the development of glioma are summarized. METHODS This paper collects and reviews relevant PubMed literature. CONCLUSION Several classes of circRNAs are highly expressed in glioma and are associated with malignant biological behaviors of gliomas, including proliferation, migration, invasion, apoptosis, angiogenesis, and drug resistance. Further studies are needed to clarify the roles of circRNAs in glioma and to determine whether it is possible to increase therapeutic effects on tumors through circRNA intervention.
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15
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Xu C, Luo M, Liu X, Wei T, Zhou Z, Li C, He Z, Sui H. MicroRNA-1298-5p in granulosa cells facilitates cell autophagy in polycystic ovary syndrome by suppressing glutathione-disulfide reductase. Cell Tissue Res 2023:10.1007/s00441-023-03747-9. [PMID: 36781484 DOI: 10.1007/s00441-023-03747-9] [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: 09/27/2021] [Accepted: 01/23/2023] [Indexed: 02/15/2023]
Abstract
The aim of this study was to investigate the effect and mechanism of action of miR-1298-5p in polycystic ovary syndrome (PCOS). Granulosa cells were isolated from follicular fluid of patients with PCOS and healthy women, and the expression of miR-1298-5p and glutathione-disulfide reductase (GSR) mRNA in these cells was evaluated using reverse transcription-quantitative polymerase chain reaction (qRT-PCR). Clinical data were obtained from all subjects, and reproductive hormones and endocrine indices were assayed to analyze the correlation between miR-1298-5p and clinicopathological characteristics of patients with PCOS. Following transfection with the miR-1298-5p mimic or inhibitor and/or pcDNA3.1-GSR, LC3 immunofluorescence and transmission electron microscopy were used to evaluate autophagy in the COV434 human granulosa cell line. Additionally, western blotting was performed to detect LC3-II, Beclin 1, and p62 protein levels in COV434 cells. The interaction between miR-1298-5p and GSR was also examined. A PCOS rat model was established and injected with the miR-1298-5p antagomir, followed by measurement of body and ovary weights, histological examination, and autophagosome observation. The protein expression levels of GSR, LC3-II, Beclin 1, and p62 were determined in rat ovaries. miR-1298-5p was expressed at a high level, and GSR was downregulated in granulosa cells from patients with PCOS. In COV434 cells, miR-1298-5p inversely mediated GSR expression, and miR-1298-5p mimic transfection promoted autophagy, whereas GSR overexpression blocked miR-1298-5p mimic-promoted autophagy. In PCOS rats, miR-1298-5p inhibition reduced autophagy and alleviated abnormalities in follicular development. Overall, miR-1298-5p enhances autophagy in granulosa cells by downregulating GSR, thereby affecting PCOS development.
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Affiliation(s)
- Changlong Xu
- The Reproductive Medical Center, Nanning Second People's Hospital, No.13 Dancun Road, Nanning, Guangxi 530031, People's Republic of China
| | - Mingjiu Luo
- College of Animal Science and Veterinary, Shandong Agricultural University, Tai'an, Shandong 271018, People's Republic of China
| | - Xiaodong Liu
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, No. 6699, Qingdao Road, Huaiyin District, Jinan, Shandong, 250000, People's Republic of China
| | - Tao Wei
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, No. 6699, Qingdao Road, Huaiyin District, Jinan, Shandong, 250000, People's Republic of China
| | - Zheng Zhou
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, No. 6699, Qingdao Road, Huaiyin District, Jinan, Shandong, 250000, People's Republic of China
| | - Changze Li
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, No. 6699, Qingdao Road, Huaiyin District, Jinan, Shandong, 250000, People's Republic of China
| | - Zilin He
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, No. 6699, Qingdao Road, Huaiyin District, Jinan, Shandong, 250000, People's Republic of China
| | - Hongshu Sui
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, No. 6699, Qingdao Road, Huaiyin District, Jinan, Shandong, 250000, People's Republic of China.
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16
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Katsushima K, Joshi K, Perera RJ. Diagnostic and therapeutic potential of circular RNA in brain tumors. Neurooncol Adv 2023; 5:vdad063. [PMID: 37334165 PMCID: PMC10276536 DOI: 10.1093/noajnl/vdad063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of RNA with a stable cyclic structure. They are expressed in various tissues and cells with conserved, specific characteristics. CircRNAs have been found to play critical roles in a wide range of cellular processes by regulating gene expression at the epigenetic, transcriptional, and posttranscriptional levels. There is an accumulation of evidence on newly discovered circRNAs, their molecular interactions, and their roles in the development and progression of human brain tumors, including cell proliferation, cell apoptosis, invasion, and chemoresistance. Here we summarize the current state of knowledge of the circRNAs that have been implicated in brain tumor pathogenesis, particularly in gliomas and medulloblastomas. In providing a comprehensive overview of circRNA studies, we highlight how different circRNAs have oncogenic or tumor-suppressive roles in brain tumors, making them attractive therapeutic targets and biomarkers for personalized therapy and precision diagnostics. This review article discusses circRNAs' functional roles and the prospect of using them as diagnostic biomarkers and therapeutic targets in patients with brain tumors.
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Affiliation(s)
- Keisuke Katsushima
- Department of Neurosurgery and Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Cancer and Blood Disorders Institute, Johns Hopkins All Children’s Hospital, Florida, USA
| | - Kandarp Joshi
- Department of Neurosurgery and Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Cancer and Blood Disorders Institute, Johns Hopkins All Children’s Hospital, Florida, USA
| | - Ranjan J Perera
- Corresponding Author: Ranjan J. Perera, PhD, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, School of Medicine, Johns Hopkins University, 1650 Orleans St., Baltimore, MD 21231, USA ()
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17
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Li X, Wang N, Leng H, Yuan H, Xu L. Hsa_circ_0043949 reinforces temozolomide resistance via upregulating oncogene ITGA1 axis in glioblastoma. Metab Brain Dis 2022; 37:2979-2993. [PMID: 36301458 DOI: 10.1007/s11011-022-01069-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 08/08/2022] [Indexed: 10/31/2022]
Abstract
Temozolomide (TMZ) resistance limits its use in glioblastoma (GBM). Exosomes can carry circular RNAs (circRNAs) to regulate chemoresistance. To date, the role of exosomal hsa_circ_0043949 (circ_0043949) in GBM resistance to TMZ is unclear. Relative expression of circ_0043949 in clinical samples, GBM cell lines, and exosomes was detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The half-maximal inhibitory concentration (IC50) of TMZ, cell proliferation, apoptosis, invasion, and migration were analyzed via MTT, EdU, flow cytometry, transwell, and wound-healing assays. Relative protein levels were evaluated by western blotting. Target relationship was predicted by bioinformatics analysis and validated by dual-luciferase reporter and RNA pull-down assays. Exosomes were isolated by ultracentrifugation and verified by transmission electron microscopy, nanoparticle tracking analysis (NTA), and western blotting. The effect of exosomal circ_0043949 on TMZ resistance was validated by xenograft assay. Higher expression of circ_0043949 was gained in TMZ-resistant GBM samples and cells. Inhibition of circ_0043949 reduced TMZ resistance via decreasing IC50 of TMZ, repressing proliferation, invasion, migration, and inducing apoptosis in TMZ-resistant GBM cells. Circ_0043949 mediated integrinalpha1 (ITGA1) expression via function as a miR-876-3p sponge. Circ_0043949 was also upregulated in TMZ-resistant GBM cells-derived exosomes, and exosomal circ_0043949 increased the resistance of TMZ-resistant GBM cells to TMZ in xenograft models. TMZ-resistant GBM cells-derived exosomal circ_0043949 promoted TMZ resistance via upregulating ITGA1 expression via sequestering miR-876-3p, offering a potential target for the treatment of TMZ resistance in GBM.
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Affiliation(s)
- Xuzhao Li
- Department of Neurosurgery, The First People's Hospital of Changde City, Changde City, 415000, Hunan, China
| | - Nianhua Wang
- Department of Neurosurgery, The First People's Hospital of Changde City, Changde City, 415000, Hunan, China
| | - Haibin Leng
- Department of Neurosurgery, The First People's Hospital of Changde City, Changde City, 415000, Hunan, China
| | - Huichun Yuan
- Department of Neurosurgery, The First People's Hospital of Changde City, Changde City, 415000, Hunan, China
| | - Lixin Xu
- Department of Neurosurgery, The First People's Hospital of Changde City, Changde City, 415000, Hunan, China.
- Department of Neurosurgery, The First People's Hospital of Changde City, No.818, Renmin Road, Changde, 415000, Hunan, China.
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18
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Wang H, Gao X, Yu S, Wang W, Liu G, Jiang X, Sun D. Circular RNAs regulate parental gene expression: A new direction for molecular oncology research. Front Oncol 2022; 12:947775. [PMID: 36091137 PMCID: PMC9453195 DOI: 10.3389/fonc.2022.947775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
CircRNAs have been the focus of research in recent years. They are differentially expressed in various human tumors and can regulate oncogenes and tumor suppressor genes expression through various mechanisms. The diversity, stability, evolutionary conservatism and cell- or tissue-specific expression patterns of circRNAs also endow them with important regulatory roles in promoting or inhibiting tumor cells malignant biological behaviors progression. More interestingly, emerging studies also found that circRNAs can regulate not only other genes expression, but also their parental gene expression and thus influence tumors development. Apart from some conventional features, circRNAs have a certain specificity in the regulation of parental gene expression, with a higher proportion affecting parental gene transcription and easier translation into protein to regulate parental gene expression. CircRNAs are generally thought to be unable to produce proteins and therefore the protein-coding ability exhibited by circRNAs in regulating parental gene expression is unique and indicates that the regulatory effects of parental gene expression by circRNAs are not only a competitive binding relationship, but also a more complex molecular relationship between circRNAs and parental gene, which deserves further study. This review summarizes the molecular mechanisms of circRNAs regulating parental gene expression and their biological roles in tumorigenesis and development, aiming to provide new ideas for the clinical application of circRNAs in tumor-targeted therapy.
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Affiliation(s)
- Haicun Wang
- General Surgery Department, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin Gao
- General Surgery Department, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shaobo Yu
- General Surgery Department, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Weina Wang
- Department of Anesthesiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Guanglin Liu
- General Surgery Department, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xingming Jiang
- General Surgery Department, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Xingming Jiang, ; Dongsheng Sun,
| | - Dongsheng Sun
- General Surgery Department, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Xingming Jiang, ; Dongsheng Sun,
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19
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Lin H, Wang Y, Wang P, Long F, Wang T. Mutual regulation between N6-methyladenosine (m6A) modification and circular RNAs in cancer: impacts on therapeutic resistance. Mol Cancer 2022; 21:148. [PMID: 35843942 PMCID: PMC9290271 DOI: 10.1186/s12943-022-01620-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/08/2022] [Indexed: 02/08/2023] Open
Abstract
The resistance of tumor cells to therapy severely impairs the efficacy of treatment, leading to recurrence and metastasis of various cancers. Clarifying the underlying mechanisms of therapeutic resistance may provide new strategies for overcoming cancer resistance. N6-methyladenosine (m6A) is the most prevalent RNA modification in eukaryotes, and is involved in the regulation of RNA splicing, translation, transport, degradation, stability and processing, thus affecting several physiological processes and cancer progression. As a novel type of multifunctional non-coding RNAs (ncRNAs), circular RNAs (circRNAs) have been demonstrated to play vital roles in anticancer therapy. Currently, accumulating studies have revealed the mutual regulation of m6A modification and circRNAs, and their interaction can further influence the sensitivity of cancer treatment. In this review, we mainly summarized the recent advances of m6A modification and circRNAs in the modulation of cancer therapeutic resistance, as well as their interplay and potential mechanisms, providing promising insights and future directions in reversal of therapeutic resistance in cancer.
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Affiliation(s)
- Hong Lin
- Department of Pharmacy, Sichuan Cancer Hospital & Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuxi Wang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Pinghan Wang
- Laboratory Medicine Center, Sichuan Provincial Maternity and Child Health Care Hospital, Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu Medical College, Chengdu, China
| | - Fangyi Long
- Laboratory Medicine Center, Sichuan Provincial Maternity and Child Health Care Hospital, Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu Medical College, Chengdu, China.
| | - Ting Wang
- Department of Pharmacy, Sichuan Cancer Hospital & Institution, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
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20
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Yin X, Lin H, Lin L, Miao L, He J, Zhuo Z. LncRNAs and CircRNAs in cancer. MedComm (Beijing) 2022; 3:e141. [PMID: 35592755 PMCID: PMC9099016 DOI: 10.1002/mco2.141] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 12/24/2022] Open
Affiliation(s)
- Xin Yin
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
- College of Pharmacy Jinan University Guangzhou Guangdong China
| | - Huiran Lin
- Faculty of Medicine Macau University of Science and Technology Macau China
| | - Lei Lin
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
| | - Lei Miao
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
| | - Zhenjian Zhuo
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou Guangdong China
- Laboratory Animal Center, School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen China
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21
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Peng Q, Wang L, Wang S, Wang C, Xue Z. MicoRNA-214-3p: a key player in CPLX2-mediated inhibition on temozolomide resistance in glioma. Neurol Res 2022; 44:879-887. [DOI: 10.1080/01616412.2022.2064699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Qian Peng
- Medical Department Hunan Provincial People’s Hospital, (the First Affiliated Hospital of Hunan Normal University), Changsha P.R. China
| | - Lijiao Wang
- Department of Nosocomial Infection, Hunan Provincial People’s Hospital, (the First Affiliated Hospital of Hunan Normal University), Changsha, P.R. China
| | - Shuling Wang
- Institute of Geriatrics, Hunan Provincial People’s Hospital, (the First Affiliated Hospital of Hunan Normal University), Changsha, P.R. China
| | - Chenxu Wang
- Institute of Geriatrics, Hunan Provincial People’s Hospital, (the First Affiliated Hospital of Hunan Normal University), Changsha, P.R. China
| | - Zhi Xue
- Department of Neurosurgery, Hunan Provincial People’s Hospital, (the First Affiliated Hospital of Hunan Normal University), Changsha, P.R. China
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22
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Pei Y, Zhang H, Lu K, Tang X, Li J, Zhang E, Zhang J, Huang Y, Yang Z, Lu Z, Li Y, Zhang H, Dong L. Circular RNA circRNA_0067934 promotes glioma development by modulating the microRNA miR-7/ Wnt/β-catenin axis. Bioengineered 2022; 13:5792-5802. [PMID: 35213267 PMCID: PMC8973834 DOI: 10.1080/21655979.2022.2033382] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Glioma, one of the most prevalent malignant tumors, is well-known for its poor prognosis and low survival rate among patients. As a type of non-coding RNA, circular RNAs (circRNAs) play a significant role in tumor progression. However, the function and role of circRNAs in glioma development remain unclarified. In our experiments, the relative expression level of circRNA_0067934 and miR-7 in glioma tissue was detected by qRT-PCR, and specific gene knockdown was mediated by siRNA and miRNA-inhibitor. Dual-luciferase reporter assay was carried out to determine whether miR-7 successfully targeted circRNA_0067934. Also, CCK-8 and Transwell were performed to evaluate the malignant behaviors of glioma tissues. Western blotting and immunofluorescence were used to evaluate relative protein expression levels. The results of qRT-PCR indicated that circRNA_0067934 was over-expressed in glioma tissues, and down regulation of circRNA_0067934 reduced the tumor progression by inhibiting cell proliferation, invasion, and migration. The relative expression level of miR-7 was significantly reduced in glioma tissues, which showed a negative association with the expression of circRNA_0067934. CircRNA_0067934 could tagete the miR-7 to regulate progression of glioma cell. In addition, the Wnt/β-catenin signaling pathway might involve in down stream regulation of circRNA_0067934 and miR-7. In conclusion, our results revealed that circRNA_0067934 regulates glioma cells progression by targeting miR-7/ Wnt/β-catenin axis.
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Affiliation(s)
- Yunlong Pei
- Department of Clinical Medicine, Dalian Medical University, Dalian, Liaoning, China.,Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Hongying Zhang
- Department of Image, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Kongye Lu
- Department of Clinical Medicine, Dalian Medical University, Dalian, Liaoning, China
| | - Xiaojia Tang
- Department of Rehabilitation, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Jialing Li
- Department of clinical science, Ross University School of Medicine (RUSM), Bridgetown, Barbados
| | - Enpeng Zhang
- Department of Clinical Medicine, Dalian Medical University, Dalian, Liaoning, China
| | - Jun Zhang
- Department of Neurosurgery, Fudan University, Yangzhou, Jiangsu, China
| | - Yujia Huang
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Zhijie Yang
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Zhenggang Lu
- Department of Clinical Medicine, Dalian Medical University, Dalian, Liaoning, China.,Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Yuping Li
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Hengzhu Zhang
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
| | - Lun Dong
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Yangzhou, Jiangsu, China
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23
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Ke Y, Su S, Duan C, Wang Y, Cao G, Fang Z, Tuo Y, Li W, Wang Z, Zhang S. Hsa_circ_0076931 suppresses malignant biological properties, down-regulates miR-6760-3p through direct binding, and up-regulates CCBE1 in glioma. Biosci Rep 2022; 42:BSR20211895. [PMID: 34931668 PMCID: PMC8738865 DOI: 10.1042/bsr20211895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 11/17/2022] Open
Abstract
The function of circular RNAs (circRNAs) in gliomas is as yet unknown. The present study explored role of hsa_circ_0076931 in glioma. circRNA expression profiles were identified via RNA-seq followed by qRT-PCR validation in three pairs of glioma and normal brain tissues (NBT). The function of hsa_circ_0076931 was investigated in vitro using cell lines as well as in vivo using a xenograft tumor. Hsa_circ_0076931 was up-regulated by overexpression and an mRNA profile compared with wild-type was identified by RNA-seq. The relationship between miR-6760-3p and hsa_circ_0076931 or CCBE1 was confirmed via luciferase reporter or AGO2-RIP assays. A total of 507 circRNAs were identified in glioma tissues that were differentially expressed compared with that in NBT, and the sequencing data were deposited in BioProject (ID: PRJNA746438). Hsa_circ_0007694 and hsa_circ_0008016 were memorably increased whereas hsa_circ_0076931 and hsa_circ_0076948 decreased in glioma compared with those in NBT. Additionally, hsa_circ_0076931 expression was negatively correlated with histological grade. Overexpression of hsa_circ_0076931 inhibited proliferation, migration, and invasion while promoting apoptosis of glioma cells. A total of 4383 and 537 aberrantly expressed genes were identified between the hsa_circ_0076931-overexpressed and control groups in H4 and U118-MG cells, respectively; the sequencing data were deposited in BioProject (ID: PRJNA746438). These differentially expressed genes were mainly enriched in cancer-related pathways. In addition, elevated hsa_circ_0076931 levels induced the expression of CCBE1 while suppressing miR-6760-3p expression. miR-6760-3p can bind to hsa_circ_0076931. The experimental evidence supports using hsa_circ_0076931 as a marker for glioma and to help prevent malignant progression. The mechanism might be relevant to miR-6760-3p and CCBE1.
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Affiliation(s)
- Yanbin Ke
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong, China
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong, China
| | - Shixing Su
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong, China
| | - Chuanzhi Duan
- Neurosurgery Center, Department of Cerebrovascular Surgery, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong, China
| | - Yezhong Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong, China
| | - Guobin Cao
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong, China
| | - Zelu Fang
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong, China
| | - Yonghua Tuo
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong, China
| | - Wei Li
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong, China
| | - Zhaotao Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong, China
| | - Shizhen Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, Guangdong, China
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24
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Liu XY, Zhang Q, Guo J, Zhang P, Liu H, Tian ZB, Zhang CP, Li XY. The Role of Circular RNAs in the Drug Resistance of Cancers. Front Oncol 2022; 11:790589. [PMID: 35070998 PMCID: PMC8766647 DOI: 10.3389/fonc.2021.790589] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/13/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer is a major threat to human health and longevity. Chemotherapy is an effective approach to inhibit cancer cell proliferation, but a growing number of cancer patients are prone to develop resistance to various chemotherapeutics, including platinum, paclitaxel, adriamycin, and 5-fluorouracil, among others. Significant progress has been made in the research and development of chemotherapeutic drugs over the last few decades, including targeted therapy drugs and immune checkpoint inhibitors; however, drug resistance still severely limits the application and efficacy of these drugs in cancer treatment. Recently, emerging studies have emphasized the role of circular RNAs (circRNAs) in the proliferation, migration, invasion, and especially chemoresistance of cancer cells by regulating the expression of related miRNAs and targeted genes. In this review, we comprehensively summarized the potential roles and mechanisms of circRNAs in cancer drug resistance including the efflux of drugs, apoptosis, intervention with the TME (tumor microenvironment), autophagy, and dysfunction of DNA damage repair, among others. Furthermore, we highlighted the potential value of circRNAs as new therapeutic targets and prognostic biomarkers for cancer.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiao-Yu Li
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
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25
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Chen M, Yan C, Zhao X. Research Progress on Circular RNA in Glioma. Front Oncol 2021; 11:705059. [PMID: 34745938 PMCID: PMC8568300 DOI: 10.3389/fonc.2021.705059] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 10/06/2021] [Indexed: 12/12/2022] Open
Abstract
The discovery of circular RNA (circRNA) greatly complements the traditional gene expression theory. CircRNA is a class of non-coding RNA with a stable cyclic structure. They are highly expressed, spatiotemporal-specific and conservative across species. Importantly, circRNA participates in the occurrence of many kinds of tumors and regulates the tumor development. Glioma is featured by limited therapy and grim prognosis. Cancer-associated circRNA compromises original function or creates new effects in glioma, thus contributing to oncogenesis. Therefore, this article reviews the biogenesis, metabolism, functions and properties of circRNA as a novel potential biomarker for gliomas. We elaborate the expression characteristics, interaction between circRNA and other molecules, aiming to identify new targets for early diagnosis and treatment of gliomas.
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Affiliation(s)
- Mengyu Chen
- Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Chunyan Yan
- Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xihe Zhao
- Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, China
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26
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circRNA hsa_circ_0005909 Predicts Poor Prognosis and Promotes the Growth, Metastasis, and Drug Resistance of Non-Small-Cell Lung Cancer via the miRNA-338-3p/SOX4 Pathway. DISEASE MARKERS 2021; 2021:8388512. [PMID: 34413915 PMCID: PMC8369175 DOI: 10.1155/2021/8388512] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/17/2021] [Accepted: 07/24/2021] [Indexed: 12/25/2022]
Abstract
Background Circular RNAs (circRNAs) are powerful factors in regulating various cancer behaviors. It has been manifested in previous researches that circular RNA hsa_circ_0005909 (circ_0005909) exhibits a regulatory function in osteosarcoma. However, there are no other studies on whether circ_0005909 displays potential functions on the progression of non-small-cell lung cancer (NSCLC). Methods RT-PCR was applied to examine the expression of circ_0005909 in NSCLC. To study the specific behaviors of NSCLC cells after circ_0005909 knockdown, cell counting kit-8 (CCK-8) assays, colony formation assays, Transwell assays, and xenograft tumor model assays were conducted. Bioinformatics and luciferase reporter assays were employed to study the association among circ_0005909, miRNA-338-3p, and SOX4. Results In this research, our group firstly showed that circ_0005909 expressions were distinctly increased in NSCLC specimens and cell lines. Clinical studies revealed that high circ_0005909 expressions were associated with poor prognosis of NSCLC patients. Functionally, knockdown of circ_0005909 was observed to suppress the proliferation, metastasis, and drug resistance of NSCLC cells. In the terms of mechanism, circ_0005909 could act as a sponge of miRNA-338-3p, and miRNA-338-3p could target SOX4. In addition, miRNA-338-3p inhibitors reversed the suppressor ability of circ_0005909 silence on NSCLC behaviors. Conclusions circ_0005909 promoted the progression of NSCLC via the modulation of the miRNA-338-3p/SOX4 axis, which may be a therapeutic target for NSCLC.
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