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Zhang B, Zhang H, Wang Z, Cao H, Zhang N, Dai Z, Liang X, Peng Y, Wen J, Zhang X, Zhang L, Luo P, Zhang J, Liu Z, Cheng Q, Peng R. The regulatory role and clinical application prospects of circRNA in the occurrence and development of CNS tumors. CNS Neurosci Ther 2024; 30:e14500. [PMID: 37953502 PMCID: PMC11017455 DOI: 10.1111/cns.14500] [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: 06/29/2023] [Revised: 09/20/2023] [Accepted: 10/03/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Central nervous system (CNS) tumors originate from the spinal cord or brain. The study showed that even with aggressive treatment, malignant CNS tumors have high mortality rates. However, CNS tumor risk factors and molecular mechanisms have not been verified. Due to the reasons mentioned above, diagnosis and treatment of CNS tumors in clinical practice are currently fraught with difficulties. Circular RNAs (circRNAs), single-stranded ncRNAs with covalently closed continuous structures, are essential to CNS tumor development. Growing evidence has proved the numeral critical biological functions of circRNAs for disease progression: sponging to miRNAs, regulating gene transcription and splicing, interacting with proteins, encoding proteins/peptides, and expressing in exosomes. AIMS This review aims to summarize current progress regarding the molecular mechanism of circRNA in CNS tumors and to explore the possibilities of clinical application based on circRNA in CNS tumors. METHODS We have summarized studies of circRNA in CNS tumors in Pubmed. RESULTS This review summarized their connection with CNS tumors and their functions, biogenesis, and biological properties. Furthermore, we introduced current advances in clinical RNA-related technologies. Then we discussed the diagnostic and therapeutic potential (especially for immunotherapy, chemotherapy, and radiotherapy) of circRNA in CNS tumors in the context of the recent advanced research and application of RNA in clinics. CONCLUSIONS CircRNA are increasingly proven to participate in decveloping CNS tumors. An in-depth study of the causal mechanisms of circRNAs in CNS tomor progression will ultimately advance their implementation in the clinic and developing new strategies for preventing and treating CNS tumors.
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Affiliation(s)
- Bo Zhang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Hao Zhang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- Department of Neurosurgery, The Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Zeyu Wang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- MRC Centre for Regenerative Medicine, Institute for Regeneration and RepairUniversity of EdinburghEdinburghUK
| | - Hui Cao
- Department of Psychiatry, The School of Clinical MedicineHunan University of Chinese MedicineChangshaChina
| | - Nan Zhang
- College of Life Science and TechnologyHuazhong University of Science and TechnologyWuhanChina
| | - Ziyu Dai
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Xisong Liang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Yun Peng
- Teaching and Research Section of Clinical NursingXiangya Hospital of Central South UniversityChangshaChina
- Department of Geriatrics, Xiangya HospitalCentral South UniversityChangshaChina
| | - Jie Wen
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Xun Zhang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Liyang Zhang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Peng Luo
- Department of Oncology, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Jian Zhang
- Department of Oncology, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Zaoqu Liu
- Department of Interventional RadiologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Quan Cheng
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Renjun Peng
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
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2
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Song Z, Xue Z, Wang Y, Imran M, Assiri M, Fahad S. Insights into the roles of non-coding RNAs and angiogenesis in glioblastoma: An overview of current research and future perspectives. Biochim Biophys Acta Gen Subj 2024; 1868:130567. [PMID: 38242182 DOI: 10.1016/j.bbagen.2024.130567] [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: 06/21/2023] [Revised: 12/27/2023] [Accepted: 01/15/2024] [Indexed: 01/21/2024]
Abstract
Glioblastoma (GBM) is a highly aggressive type of primary brain cancer with a poor prognosis, and despite intensive research, survival rates have not significantly improved. Non-coding RNAs (ncRNAs) are emerging as critical regulators of GBM pathogenesis, including angiogenesis, which is essential for tumor growth and invasion. MicroRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs) have been identified as regulators of angiogenesis in GBM. miRNAs such as miR-21, miR-10b, and miR-26a promote angiogenesis by targeting anti-angiogenic factors, while lncRNAs such as H19 and MALAT1 inhibit angiogenesis by regulating pro-angiogenic factors. CircRNAs, such as circSMARCA5 and circBACH2, also regulate angiogenesis through various mechanisms. Similarly, signaling pathways such as the vascular endothelial growth factor (VEGF) pathway play critical roles in angiogenesis and have been targeted for GBM therapy. However, resistance to anti-angiogenic therapies is a significant obstacle in clinical practice. Developing novel therapeutic strategies targeting ncRNAs and angiogenesis is a promising approach for GBM. Potential targets include miRNAs, lncRNAs, circRNAs, and downstream signaling pathways that regulate angiogenesis. This review highlights the critical roles of ncRNAs and angiogenesis in GBM pathogenesis and the potential for new therapeutic strategies targeting these pathways to improve the prognosis and quality of life for GBM patients.
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Affiliation(s)
- Zhengfei Song
- Department of Neurosurgery, SIR Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhaoliang Xue
- Department of Neurosurgery, SIR Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yirong Wang
- Department of Neurosurgery, SIR Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Mohammed Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Shah Fahad
- Department of Agronomy, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa 23200, Pakistan; Department of Natural Sciences, Lebanese American University, Byblos, Lebanon.
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3
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Singh RR, Mondal I, Janjua T, Popat A, Kulshreshtha R. Engineered smart materials for RNA based molecular therapy to treat Glioblastoma. Bioact Mater 2024; 33:396-423. [PMID: 38059120 PMCID: PMC10696434 DOI: 10.1016/j.bioactmat.2023.11.007] [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: 04/25/2023] [Revised: 10/19/2023] [Accepted: 11/14/2023] [Indexed: 12/08/2023] Open
Abstract
Glioblastoma (GBM) is an aggressive malignancy of the central nervous system (CNS) that remains incurable despite the multitude of improvements in cancer therapeutics. The conventional chemo and radiotherapy post-surgery have only been able to improve the prognosis slightly; however, the development of resistance and/or tumor recurrence is almost inevitable. There is a pressing need for adjuvant molecular therapies that can successfully and efficiently block tumor progression. During the last few decades, non-coding RNAs (ncRNAs) have emerged as key players in regulating various hallmarks of cancer including that of GBM. The levels of many ncRNAs are dysregulated in cancer, and ectopic modulation of their levels by delivering antagonists or overexpression constructs could serve as an attractive option for cancer therapy. The therapeutic potential of several types of ncRNAs, including miRNAs, lncRNAs, and circRNAs, has been validated in both in vitro and in vivo models of GBM. However, the delivery of these RNA-based therapeutics is highly challenging, especially to the tumors of the brain as the blood-brain barrier (BBB) poses as a major obstacle, among others. Also, since RNA is extremely fragile in nature, careful considerations must be met while designing a delivery agent. In this review we have shed light on how ncRNA therapy can overcome the limitations of its predecessor conventional therapy with an emphasis on smart nanomaterials that can aide in the safe and targeted delivery of nucleic acids to treat GBM. Additionally, critical gaps that currently exist for successful transition from viral to non-viral vector delivery systems have been identified. Finally, we have provided a perspective on the future directions, potential pathways, and target areas for achieving rapid clinical translation of, RNA-based macromolecular therapy to advance the effective treatment of GBM and other related diseases.
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Affiliation(s)
- Ravi Raj Singh
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi, India
- School of Pharmacy, The University of Queensland, Brisbane, QLD, 4072, Australia
- University of Queensland –IIT Delhi Academy of Research (UQIDAR)
| | - Indranil Mondal
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi, India
| | - Taskeen Janjua
- School of Pharmacy, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, Brisbane, QLD, 4072, Australia
- Department of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
| | - Ritu Kulshreshtha
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, New Delhi, India
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4
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Yang K, Li J, Zhu J, Chen Y, He Y, Wang J, Shen K, Wang K, Shi T, Chen W. HOOK3 suppresses proliferation and metastasis in gastric cancer via the SP1/VEGFA axis. Cell Death Discov 2024; 10:33. [PMID: 38228617 DOI: 10.1038/s41420-024-01808-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/25/2023] [Accepted: 01/05/2024] [Indexed: 01/18/2024] Open
Abstract
HOOK3, a member of the human hook microtubule-tethering protein family, has been implicated in the progression of cancer. However, the role of HOOK3 in the pathogenesis of gastric cancer (GC) remains incompletely understood. In this study, we investigated the expression of HOOK3 protein in GC tissues using immunohistochemistry (IHC). The findings of our study indicate that the expression levels of HOOK3 in GC tissues were relatively low. Furthermore, a significant negative association was seen between HOOK3 expression and the prognosis of patients with GC. The suppression of HOOK3 resulted in a notable increase in the proliferation, migration, invasion, and survival of GC cells. Conversely, the overexpression of HOOK3 had the opposite impact, reducing these cellular processes. Moreover, in vivo tests have shown evidence that the overexpression of HOOK3 significantly inhibited the formation of tumors and the spread of GC cells to the lungs. In a mechanistic manner, the analysis of RNA-seq data demonstrated that the knockdown of HOOK3 resulted in a notable increase in the expression of vascular endothelial growth factor A (VEGFA) in GC cells. Furthermore, the upregulation of VEGFA counteracted the impacts of HOOK3 upregulation on the proliferation, migration, invasion, and survival of GC cells. Furthermore, it was revealed that specificity protein 1 (SP1) exhibited the ability to bind to the promoter region of VEGFA. Moreover, the overexpression of SP1 successfully counteracted the inhibitory impact of HOOK3 overexpression on the expression of VEGFA in GC cells. In summary, the results of our study indicate that HOOK3 has a role in inhibiting the growth, migration, invasion, and survival of GC cells by modulating the SP1/VEGFA pathway. These findings contribute significant knowledge to our understanding of the underlying mechanisms involved in the development of GC.
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Affiliation(s)
- Kexi Yang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Juntao Li
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jinghan Zhu
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yuqi Chen
- Department of Gastroenterology, Dushu Lake Hospital Affiliated of Soochow University, Suzhou, China
| | - Yuxin He
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jiayu Wang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Kanger Shen
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Kun Wang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Tongguo Shi
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, China.
| | - Weichang Chen
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, China.
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China.
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5
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Ghaedrahmati F, Nasrolahi A, Najafi S, Mighani M, Anbiyaee O, Haybar H, Assareh AR, Kempisty B, Dzięgiel P, Azizidoost S, Farzaneh M. Circular RNAs-mediated angiogenesis in human cancers. Clin Transl Oncol 2023; 25:3101-3121. [PMID: 37039938 DOI: 10.1007/s12094-023-03178-6] [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: 01/16/2023] [Accepted: 03/16/2023] [Indexed: 04/12/2023]
Abstract
Circular RNAs (circRNAs) as small non-coding RNAs with cell, tissue, or organ-specific expression accomplish a broad array of functions in physiological and pathological processes such as cancer development. Angiogenesis, a complicated multistep process driving a formation of new blood vessels, speeds up tumor progression by supplying nutrients as well as energy. Abnormal expression of circRNAs reported to affect tumor development through impressing angiogenesis. Such impacts are introduced as constant with different tumorigenic features known as "hallmarks of cancer". In addition, deregulated circRNAs show possibilities to prognosis and diagnosis both in the prophecy of prognosis in malignancies and also their prejudice from healthy individuals. In the present review article, we have evaluated the angiogenic impacts and anti-angiogenic managements of circRNAs in human cancers.
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Affiliation(s)
- Farhoodeh Ghaedrahmati
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ava Nasrolahi
- Infectious Ophthalmologic Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sajad Najafi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Mighani
- School of Medicine, Golestan University of Medical Sciences, Golestan, Iran
| | - Omid Anbiyaee
- Cardiovascular Research Center, Nemazi Hospital, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Habib Haybar
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ahmad Reza Assareh
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bartosz Kempisty
- Institute of Veterinary Medicine, Department of Veterinary Surgery, Nicolaus Copernicus University, Torun, Poland
- Department of Human Morphology and Embryology, Division of Anatomy, Wroclaw Medical University, Wrocław, Poland
- North Carolina State University College of Agriculture and Life Sciences, Raleigh, NC, 27695, US
| | - Piotr Dzięgiel
- Division of Histology and Embryology, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368, Wroclaw, Poland
| | - Shirin Azizidoost
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Maryam Farzaneh
- Fertility, Infertility and Perinatology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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6
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Zhang L, Zhang Y, Li X, Gao H, Chen X, Li P. CircRNA-miRNA-VEGFA: an important pathway to regulate cancer pathogenesis. Front Pharmacol 2023; 14:1049742. [PMID: 37234708 PMCID: PMC10206052 DOI: 10.3389/fphar.2023.1049742] [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] [Received: 09/21/2022] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
Cancers, especially malignant tumors, contribute to high global mortality rates, resulting in great economic burden to society. Many factors are associated with cancer pathogenesis, including vascular endothelial growth factor-A (VEGFA) and circular RNAs (circRNA). VEGFA is a pivotal regulator of vascular development such as angiogenesis, which is an important process in cancer development. CircRNAs have covalently closed structures, making them highly stable. CircRNAs are widely distributed and participate in many physiological and pathological processes, including modulating cancer pathogenesis. CircRNAs act as transcriptional regulators of parental genes, microRNA (miRNA)/RNA binding protein (RBP) sponges, protein templates. CircRNAs mainly function via binding to miRNAs. CircRNAs have been shown to influence different diseases such as coronary artery diseases and cancers by regulating VEGFA levels via binding to miRNAs. In this paper, we explored the origin and functional pathways of VEGFA, reviewed the current understanding of circRNA properties and action mechanisms, and summarized the role of circRNAs in regulating VEGFA during cancer pathogenesis.
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Affiliation(s)
- Lei Zhang
- *Correspondence: Lei Zhang, ; Peifeng Li,
| | | | | | | | | | - Peifeng Li
- *Correspondence: Lei Zhang, ; Peifeng Li,
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7
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Fontemaggi G. Non-coding RNA regulatory networks in post-transcriptional regulation of VEGFA in cancer. IUBMB Life 2023; 75:30-39. [PMID: 35467790 PMCID: PMC10084289 DOI: 10.1002/iub.2620] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/10/2022] [Indexed: 12/29/2022]
Abstract
The switch from the normal quiescent vasculature to angiogenesis in tumors is induced by a variety of growth factors, released from cancer and stromal cells upon oxygen and nutrients deprivation. Vascular endothelial growth factor A (VEGF-A) is a potent-secreted mitogen and the only growth factor specific to endothelial cells that is observed almost ubiquitously at sites of angiogenesis. Expression of VEGF-A in cancer cells is controlled through transcriptional and post-transcriptional mechanisms. Post-transcriptional regulation of VEGF-A occurs at multiple levels, through the control of splicing, mRNA stability and translation rate, enabling a fine-tuned expression and release of VEGF-A. Mounting evidence is highlighting the important role played by microRNAs (miRNAs) in the control of VEGF-A mRNA stability and translation in cancer. Moreover, non-coding RNAs, as long non-coding RNAs and circular RNAs, are emerging as crucial modulators of VEGF-A-targeting miRNAs, with consequent ability to modulate VEGF-A expression. This review discusses the recent progress on the ncRNA-related networks controlling VEGF-A expression in cancer cells and provides insights into the complexity of VEGF-A post-transcriptional regulation.
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Affiliation(s)
- Giulia Fontemaggi
- Oncogenomic and Epigenetic Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
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8
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Rajabi A, Kayedi M, Rahimi S, Dashti F, Mirazimi SMA, Homayoonfal M, Mahdian SMA, Hamblin MR, Tamtaji OR, Afrasiabi A, Jafari A, Mirzaei H. Non-coding RNAs and glioma: Focus on cancer stem cells. Mol Ther Oncolytics 2022; 27:100-123. [PMID: 36321132 PMCID: PMC9593299 DOI: 10.1016/j.omto.2022.09.005] [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] [Indexed: 11/28/2022] Open
Abstract
Glioblastoma and gliomas can have a wide range of histopathologic subtypes. These heterogeneous histologic phenotypes originate from tumor cells with the distinct functions of tumorigenesis and self-renewal, called glioma stem cells (GSCs). GSCs are characterized based on multi-layered epigenetic mechanisms, which control the expression of many genes. This epigenetic regulatory mechanism is often based on functional non-coding RNAs (ncRNAs). ncRNAs have become increasingly important in the pathogenesis of human cancer and work as oncogenes or tumor suppressors to regulate carcinogenesis and progression. These RNAs by being involved in chromatin remodeling and modification, transcriptional regulation, and alternative splicing of pre-mRNA, as well as mRNA stability and protein translation, play a key role in tumor development and progression. Numerous studies have been performed to try to understand the dysregulation pattern of these ncRNAs in tumors and cancer stem cells (CSCs), which show robust differentiation and self-regeneration capacity. This review provides recent findings on the role of ncRNAs in glioma development and progression, particularly their effects on CSCs, thus accelerating the clinical implementation of ncRNAs as promising tumor biomarkers and therapeutic targets.
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Affiliation(s)
- Ali Rajabi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Mehrdad Kayedi
- Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shiva Rahimi
- School of Medicine,Fasa University of Medical Sciences, Fasa, Iran
| | - Fatemeh Dashti
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Mohammad Ali Mirazimi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Mina Homayoonfal
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Mohammad Amin Mahdian
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein 2028, South Africa
| | - Omid Reza Tamtaji
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Afrasiabi
- Department of Internal Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ameneh Jafari
- Advanced Therapy Medicinal Product (ATMP) Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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Wang J, Chen Y, Wang Q, Xu H, Jiang Q, Wang M, Li S, Chen Y, Wu C, Yu P, Xiao Z, Chen W, Lan Q. LncRNA SPRY4‐IT1 facilitates cell proliferation and angiogenesis of glioma via the miR‐101‐3p/EZH2/VEGFA signaling axis. Cancer Med 2022; 12:7309-7326. [PMID: 36479622 PMCID: PMC10067065 DOI: 10.1002/cam4.5517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 07/16/2022] [Accepted: 11/27/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND SPRY4-IT1 (SPRY4 intronic transcript 1) is a long non-coding RNA (lncRNA) that has been identified as a novel oncogene in various cancers, including glioma. However, its function and underlying mechanism in glioma remain largely unclear. Here, we investigated the role of SPRY4-IT1 in the development of glioma and its underlying mechanism. METHODS Bioinformatics analysis and RT-qPCR assay were used to examine the expression of SPRY4-IT1 in glioma tissues. The CCK-8, EdU, and Xenograft tumor assays wereperformed to assess the proliferation effect of glioma cells. The tube forming assay and Chick Embryo Chorioallantoic Membrane (CAM) assay were conducted to detect the angiogenesis effect of HUVECs. RNA-sequencing, western blotting, RT-qPCR, ELISA, and IHC assays were employed to verify the regulatory mechanism of the SPRY4-IT1/ miR-101-3p/EZH2/VEGFA axis. RESULTS Analysis of the TCGA dataset and data from our own cohort demonstrated that SPRY4-IT1 was overexpressed in patients with glioma, and high SPRY4-IT1 expression correlated with poor prognosis. In vitro and in vivo experiments showed that SPRY4-IT1 promoted the proliferation of glioma cells. RNA sequencing and Gene Ontology (GO) enrichment analysis indicated significant enrichment of angiogenesis. HUVEC tube forming assay and CAM assay confirmed that SPRY4-IT1 could induce angiogenesis of glioma cells in vitro and in vivo. Mechanistically, SPRY4-IT1 upregulated EZH2 expression by sponging miR-101-3p to induce VEGFA expression in glioma cells. Moreover, SPRY4-IT1 activated the VEGFR2/AKT/ERK1/2 pathway in HUVECs mediated by glioma cells. Rescue experiments further confirmed that SPRY4-IT1 promoted glioma cell proliferation and angiogenesis via the miR-101-3p/EZH2/VEGFA signaling axis. CONCLUSIONS Our findings provide compelling evidence showing that SPRY4-IT1 upregulated EZH2 to induce VEGFA by sponging miR-101-3p, thereby achieving cell proliferation and angiogenesis in glioma. Therefore, targeting SPRY4-IT1/miR-101-3p/EZH2/VEGFA axis may improve the outcomes of patients with glioma.
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Affiliation(s)
- Ji Wang
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Yanming Chen
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Qing Wang
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Hui Xu
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Qianqian Jiang
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Man Wang
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Shenggang Li
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Ying Chen
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Chunwang Wu
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Pei Yu
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
| | - Zongyu Xiao
- Department of Neurosurgery Dushu Lake Hospital Affiliated to Soochow University Suzhou China
| | - Wenjin Chen
- Department of Neurosurgery Peking University Shenzhen Hospital Shenzhen China
| | - Qing Lan
- Department of Neurosurgery The Second Affiliated Hospital of Soochow University Suzhou China
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10
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Yang J, Hou G, Chen H, Chen W, Ge J. Circ_0000189 Promotes the Malignancy of Glioma Cells via Regulating miR-192-5p-ZEB2 Axis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2521951. [PMID: 36193069 PMCID: PMC9526621 DOI: 10.1155/2022/2521951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 07/06/2022] [Indexed: 11/30/2022]
Abstract
Background Some recent studies have reported the role of circular RNAs (circRNAs) in modulating the tumorigenesis of human malignancies. Nevertheless, the expression characteristics, biological functions, and regulatory mechanism of circ_0000189 in glioma are unclear. Methods Quantitative real-time polymerase chain reaction (qRT-PCR) was utilized to detect the expression levels of circ_0000189, miR-192-5p, and ZEB2 mRNA in glioma tissues and cells. The association between the expression of circ_0000189 and the clinicopathological indicators and the features of magnetic resonance imaging (MRI) images of glioma patients were analyzed. Western blot was utilized to evaluate ZEB2 expression and epithelial-mesenchymal transition (EMT-)-related proteins (E-cadherin, N-cadherin, as well as Vimentin) in glioma cells. Cell proliferation was assessed employing cell counting kit-8 (CCK-8) and EdU experiments. Flow cytometry was used to detect the apoptotic rate of the cells. Cell migration and invasion were accessed employing Transwell assay. Moreover, dual luciferase reporter gene assay and RNA immunoprecipitation assay were employed to investigate the targeting relationship between miR-192-5p and circ_0000189, miR-192-5p, and ZEB2. Subcutaneous tumorigenesis experiment and lung metastasis experiment in nude mice were conducted to verify the regulatory function of circ_0000189 on the proliferation and metastasis of glioma cells in vivo. Results circ_0000189 was markedly overexpressed in glioma tissues and cell lines. Its high expression was associated with poor clinical pathological indicators and adverse MRI signs. Gain-of-function experiments and loss-of-function experiments confirmed that circ_0000189 overexpression facilitated the proliferation and migration, as well as invasion of glioma cells, and suppressed apoptosis, and facilitated epithelial-mesenchymal transition (EMT) process. Compared to the control group, knocking down circ_0000189 suppressed the malignant phenotypes of glioma cells both in vivo and in vitro. Working as a competitive endogenous RNA, circ_0000189 directly targeted miR-192-5p, and repressed its expression, and circ_0000189 positively modulated ZEB2 expression indirectly via repressing miR-192-5p. Conclusion circ_0000189 facilitates the progression of glioma by modulating miR-192-5p/ZEB2 axis.
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Affiliation(s)
- Jian Yang
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
- Department of Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200092, China
| | - Guoqiang Hou
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Hongjin Chen
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Weilin Chen
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Jianwei Ge
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
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11
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Zhou Q, Shaya M, Kugeluke Y, Fu Q, Li S, Dilimulati Y. A circular RNA derived from GLIS3 accelerates the proliferation of glioblastoma cells through competitively binding with miR-449c-5p to upregulate CAPG and GLIS3. BMC Neurosci 2022; 23:53. [PMID: 36114444 PMCID: PMC9479268 DOI: 10.1186/s12868-022-00736-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 08/02/2022] [Indexed: 11/17/2022] Open
Abstract
Background Glioblastoma (GBM) is an aggressive and malignant brain tumor with extremely poor prognosis. Despite advances in treatment, the pathogenesis of GBM remains elusive. Mounting studies have revealed the critical role of circular RNAs (circRNAs) in the development and progression of human cancers including GBM, but the comprehension of their functions is still insufficient. In this study, we investigated the expression profile of a circRNA derived from GLIS family zinc finger 3 (GLIS3) in GBM and normal astrocytes. CircGLIS3 expression was detected through quantitative real-time polymerase chain reaction (qRT-PCR) analysis. Functional experiments were performed to analyze the influence of circGLIS3 on GBM cell proliferation and apoptosis. In addition, mechanism assays were to uncover the potential regulatory mechanism of circGLIS3. Results CircGLIS3 was up-regulated in GBM cells and knockdown of circGLIS3 significantly hampered proliferation and promoted apoptosis of GBM cells. Furthermore, circGLIS3 positively regulated CAPG and GLIS3 by sponging miR-449c-5p to affect GBM cell proliferation and apoptosis. Conclusions In summary, our study identified that circGLIS3 could promote proliferation and inhibit apoptosis of GBM cells via targeting miR-449c-5p/GLIS3/CAPG axis in vitro. This study could offer a novel molecular perspective for further investigation into mechanisms essential to GBM progression. Supplementary Information The online version contains supplementary material available at 10.1186/s12868-022-00736-6.
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12
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Tumor Cells-derived exosomal CircRNAs: Novel cancer drivers, molecular mechanisms, and clinical opportunities. Biochem Pharmacol 2022; 200:115038. [DOI: 10.1016/j.bcp.2022.115038] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 12/12/2022]
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13
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Yin H, Wang H, Wang M, Yan Y, Dong Q, Li Q, Liu Y, Wang X, Guo T, Niu L, Zhang H, Wang B, Yao X, Yuan G, Pan Y. CircTCF25 serves as a sponge for miR-206 to support proliferation, migration, and invasion of glioma via the Jak2/p-Stat3/CypB axis. Mol Carcinog 2022; 61:558-571. [PMID: 35384084 DOI: 10.1002/mc.23402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/07/2022] [Accepted: 03/13/2022] [Indexed: 12/17/2022]
Abstract
Glioma is the most common primary malignant intracranial tumor in humans, and glioblastoma (GBM) has been associated with a more aggressive histology and poorer prognosis. There is growing evidence that circular RNAs (circRNAs) are involved in the progression of various malignancies; however, the role and molecular mechanism of circRNAs in glioma remain elusive. In the present study, we screened for differentially expressed circRNAs in gliomas by using a bioinformatics method. Significant upregulation in glioma tissues was verified by quantitative real-time polymerase chain reaction (qRT-PCR), and the prognostic value was evaluated. The potential oncogenic role of circular RNA TCF25 (circTCF25) in glioma was assessed both in vivo and in vitro. Bioinformatics analysis and luciferase reporter assays confirmed the interaction among circTCF25, microRNA-206 (miR-206), and its target gene Cyclophilin B (CypB). circTCF25 was predominantly located in the cytoplasm; the combination of mir-206 and circTCF25 reverses the effects of knockdown of circTCF25 on the proliferation, migration, invasion, and tumorigenesis of glioma cells. Competitive binding between circTCF25 and miR-206 mainly upregulates target gene CypB expression by preventing its inhibition of the Jak2/p-stat3 pathway. In addition, knockdown of circTCF25 reduced CypB expression by inhibiting JAK2/p-stat3, which was rescued by treatment with a miR-206 inhibitor. In summary, our findings demonstrate that the circTCF25/miR-206/CypB axis plays a vital role in glioma progression, migration, invasion, and tumorigenesis.
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Affiliation(s)
- Hang Yin
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Hongyu Wang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Maolin Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Yunji Yan
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Qiang Dong
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Qiao Li
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Yang Liu
- Key Laboratory of Neurology of Gansu Province, Lanzhou, Gansu Province, China
| | - Xiaoqing Wang
- Key Laboratory of Neurology of Gansu Province, Lanzhou, Gansu Province, China
| | - Tianxue Guo
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Liang Niu
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - He Zhang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Bo Wang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Xuan Yao
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Guoqiang Yuan
- Key Laboratory of Neurology of Gansu Province, Lanzhou, Gansu Province, China
| | - Yawen Pan
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China.,Key Laboratory of Neurology of Gansu Province, Lanzhou, Gansu Province, China
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14
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Sharma AR, Banerjee S, Bhattacharya M, Saha A, Lee SS, Chakraborty C. Recent progress of circular RNAs in different types of human cancer: Technological landscape, clinical opportunities and challenges (Review). Int J Oncol 2022; 60:56. [PMID: 35362541 DOI: 10.3892/ijo.2022.5346] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/10/2022] [Indexed: 11/11/2022] Open
Abstract
Circular RNAs (circRNAs) are a novel class of endogenous non‑coding RNAs that have been recently regarded as functionally active. CircRNAs are remarkably stable and known to possess several biological functions such as microRNA sponging, regulating transcription and splicing and occasionally acting as polypeptide‑producing templates. CircRNAs show tissue‑specific expression and have been reported to be associated with the progression of several types of malignancies. Given the recent progress in genome sequencing and bioinformatics techniques, a rapid increment in the biological role of circRNAs has been observed. Concurrently, the patent search from different patent databases shows that the patent number of circRNA is increasing very quickly. These phenomena reveal a rapid development of the technological landscape. In the present review, the recent progress on circRNAs in various kinds of cancer has been investigated and their function as biomarkers or therapeutic targets and their technological landscape have been appreciated. A new insight into circRNAs structure and functional capabilities in cancer has been reviewed. Continually increasing knowledge on their critical role during cancer progression is projecting them as biomarkers or therapeutic targets for various kinds of cancer. Thus, recent updates on the functional role of circRNAs in terms of the technological landscape, clinical opportunities (biomarkers and therapeutic targets), and challenges in cancer have been illustrated.
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Affiliation(s)
- Ashish Ranjan Sharma
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University‑Chuncheon Sacred Heart Hospital, Chuncheon, Gangwon 24252, Republic of Korea
| | - Shreya Banerjee
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal 700126, India
| | - Manojit Bhattacharya
- Department of Zoology, Fakir Mohan University, Vyasa Vihar, Balasore, Odisha 756020, India
| | - Abinit Saha
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal 700126, India
| | - Sang-Soo Lee
- Institute for Skeletal Aging and Orthopedic Surgery, Hallym University‑Chuncheon Sacred Heart Hospital, Chuncheon, Gangwon 24252, Republic of Korea
| | - Chiranjib Chakraborty
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal 700126, India
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15
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Xia H, Liu B, Shen N, Xue J, Chen S, Guo H, Zhou X. circRNA-0002109 promotes glioma malignant progression via modulating the miR-129-5P/EMP2 axis. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 27:1-15. [PMID: 34938603 PMCID: PMC8646083 DOI: 10.1016/j.omtn.2021.11.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 09/05/2021] [Accepted: 11/16/2021] [Indexed: 02/08/2023]
Abstract
Glioma is a common intracranial malignant tumor with high mortality and high recurrence rate. In recent years, increasing evidence has demonstrated that circular RNAs (circRNAs) are potential biomarkers and therapeutic targets for many tumors. However, the role of circRNAs in glioma remains unclear. In this study, we found that circRNA-0002109 was highly expressed in glioma tissues and cell lines. Downregulation of circRNA-0002109 expression inhibited the proliferation, migration, and invasion of glioma cells and inhibited the malignant progression of tumors in vivo. Investigations into the relevant mechanisms showed that circRNA-0002109 upregulated the expression of EMP2 through endogenous competitive binding of microRNA-129-5P (miR-129-5P), which partially alleviated the inhibitory effect of miR-129-5P on epithelial membrane protein-2 (EMP2) and ultimately promoted the malignant development of glioma. Our results indicate that circRNA-0002109 plays an important role in the proliferation, invasion, and migration of glioma cells by regulating the miR-129-5P/EMP2 axis, which provides a new potential therapeutic target for glioma.
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Affiliation(s)
- Haibin Xia
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang East Road, Guangzhou 510260, China.,Trauma Center, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Boyang Liu
- Neurosurgery Center, 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, China
| | - Nanxiang Shen
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang East Road, Guangzhou 510260, China
| | - Jinhua Xue
- Department of Physiology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou 341000, China
| | - Siyu Chen
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang East Road, Guangzhou 510260, China
| | - Hongbo Guo
- Neurosurgery Center, 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, China
| | - Xiaozhong Zhou
- Trauma Center, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
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16
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Chen S, Zhang Z, Zhang B, Huang Q, Liu Y, Qiu Y, Long X, Wu M, Zhang Z. CircCDK14 Promotes Tumor Progression and Resists Ferroptosis in Glioma by Regulating PDGFRA. Int J Biol Sci 2022; 18:841-857. [PMID: 35002529 PMCID: PMC8741855 DOI: 10.7150/ijbs.66114] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 12/02/2021] [Indexed: 12/28/2022] Open
Abstract
CircRNAs have garnered significant interest in recent years due to their regulation in human tumorigenesis, yet, the function of most glioma-related circRNAs remains unclear. In this study, using RNA-Seq, we screened differentially regulated circRNAs in glioma, in comparison to non-tumor brain tissue. Loss- and gain-of-function strategies were used to assess the effect of circCDK14 on tumor progression both in vitro and in vivo. Luciferase reporter, RNA pull-down and fluorescence in situ hybridization assays were carried out to validate interactions between circCDK14 and miR-3938 as well as miR-3938 and PDGFRA. Transmission electron microscopic observation of mitochondria, iron and reactive oxygen species assays were employed for the detection of circCDK14 effect on glioma cells' sensitivity to erastin-induced ferroptosis (Fp). Our findings indicated that circCDK14 was overexpressed in glioma tissues and cell lines, and elevated levels of circCDK14 induced poor prognosis of glioma patients. CircCDK14 promotes the migration, invasion and proliferation of glioma cells in vitro as well as tumorigenesis in vivo. An evaluation of the underlying mechanism revealed that circCDK14 sponged miR-3938 to upregulate oncogenic gene PDGFRA expression. Moreover, we also found that circCDK14 reduced glioma cells' sensitivity to Fp by regulating PDGFRA expression. In conclusion, circCDK14 induces tumor in glioma and increases malignant tumor behavior via the miR-3938/PDGFRA axis. Hence, the miR-3938/PDGFRA axis may be an excellent candidate of anti-glioma therapy.
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Affiliation(s)
- Simin Chen
- School of Basic Medical Science, Central South University, Changsha 410013, Hunan, China.,Department of Clinical Laboratory, Yueyang Central Hospital, Yueyang 414000, Hunan, China
| | - Zhaoyu Zhang
- School of Basic Medical Science, Central South University, Changsha 410013, Hunan, China.,Cancer Research Institute, Central South University, Changsha 410013, Hunan, China
| | - Baoxin Zhang
- Armed Police Hospital of Hunan Province, Changsha 410013, Hunan, China
| | - Qing Huang
- School of Basic Medical Science, Central South University, Changsha 410013, Hunan, China.,Department of Clinical Laboratory, Yueyang Central Hospital, Yueyang 414000, Hunan, China
| | - Yi Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410013, Hunan, China
| | - Yi Qiu
- School of Basic Medical Science, Central South University, Changsha 410013, Hunan, China.,Cancer Research Institute, Central South University, Changsha 410013, Hunan, China
| | - Xinmiao Long
- School of Basic Medical Science, Central South University, Changsha 410013, Hunan, China.,Cancer Research Institute, Central South University, Changsha 410013, Hunan, China
| | - Minghua Wu
- Cancer Research Institute, Central South University, Changsha 410013, Hunan, China
| | - Zuping Zhang
- School of Basic Medical Science, Central South University, Changsha 410013, Hunan, China
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17
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Yang C, Han S. The circular RNA circ0005654 interacts with specificity protein 1 via microRNA-363 sequestration to promote gastric cancer progression. Bioengineered 2021; 12:6305-6317. [PMID: 34499009 PMCID: PMC8806801 DOI: 10.1080/21655979.2021.1971031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 12/24/2022] Open
Abstract
Circular RNAs (circRNAs), a group of unique long noncoding RNAs, are involved in gastric carcinogenesis through multiple mechanisms, including interacting with microRNAs (miRNAs). Here, circ0005654, significantly upregulated in gastric cancer (GC), was chosen for further examination. circ0005654 was analyzed by RT-qPCR. The function of circ0005654 in GC cells was substantiated by loss-of-function assays. The mechanism of circ0005654 on miR-363/specificity protein 1 (sp1) axis was evaluated in GC cells by bioinformatics analysis, luciferase reporter, FISH, and ChIP assays. We observed that circ0005654 was enhanced in GC tissues and cells. Overexpression of circ0005654 was correlated with a poor long-term prognosis in patients with GC. Functionally, silencing of circ0005654 remarkably suppressed GC cell proliferation, migration and invasiveness in vitro and tumorigenesis and metastases in vivo. It was also established that circ0005654 served as a miR-363 sponge and enhanced sp1 expression. Furthermore, sp1 promoted GC carcinogenesis by regulating myc transcription to potentiate the Wnt/β-catenin pathway. In conclusion, circ0005654 expedites the GC development via miR-363/sp1/myc/Wnt/β-catenin axis and is a new biomarker for GC treatment regimen.
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Affiliation(s)
- Cui Yang
- Department of Clinical Medicine, Wanxi Health Vocational College, Lu’an, Anhui, P.R. China
| | - Shengjin Han
- Department of Emergency Surgery, Lu’an People's Hospital, Lu’an, Anhui, P.R. China
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18
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Li D, Zhang Z, Xia C, Niu C, Zhou W. Non-Coding RNAs in Glioma Microenvironment and Angiogenesis. Front Mol Neurosci 2021; 14:763610. [PMID: 34803608 PMCID: PMC8595242 DOI: 10.3389/fnmol.2021.763610] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/11/2021] [Indexed: 12/17/2022] Open
Abstract
Glioma, especially glioblastoma, is the most common and lethal brain tumor. In line with the complicated vascularization processes and the strong intratumoral heterogeneity, tumor-associated blood vessels in glioma are regulated by multiple types of cells through a variety of molecular mechanisms. Components of the tumor microenvironment, including tumor cells and tumor-associated stromata, produce various types of molecular mediators to regulate glioma angiogenesis. As critical regulatory molecules, non-coding RNAs (ncRNAs) inside cells or secreted to the tumor microenvironment play essential roles in glioma angiogenesis. In this review, we briefly summarize recent studies about the production, delivery, and functions of ncRNAs in the tumor microenvironment, as well as the molecular mechanisms underlying the regulation of angiogenesis by ncRNAs. We also discuss the ncRNA-based therapeutic strategies in the anti-angiogenic therapy for glioma treatment.
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Affiliation(s)
- Dongxue Li
- Intelligent Pathology Institute, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zhe Zhang
- Basic Medical College, Qingdao University, Qingdao, China
| | - Chengyu Xia
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chaoshi Niu
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wenchao Zhou
- Intelligent Pathology Institute, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Department of Pathology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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19
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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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20
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Song LJ, Zhang H, Qu XP, Jin JG, Wang C, Jiang X, Gao L, Li G, Wang DL, Shen LL, Liu B. Increased expression of Rho-associated protein kinase 2 confers astroglial Stat3 pathway activation during epileptogenesis. Neurosci Res 2021; 177:25-37. [PMID: 34740726 DOI: 10.1016/j.neures.2021.10.013] [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: 07/21/2021] [Revised: 10/28/2021] [Accepted: 10/31/2021] [Indexed: 10/19/2022]
Abstract
Patients with TLE are prone to tolerance to antiepileptic drugs. Based on the perspective of molecular targets for drug resistance, it is necessary to explore effective drug resistant genes and signaling pathways for the treatment of TLE. We performed gene expression profiles in hippocampus of patients with drug-resistant TLE and identified ROCK2 as one of the 20 most significantly increased genes in hippocampus. In vitro and in vivo experiments were performed to identify the potential role of ROCK2 in epileptogenesis. In addition, the activity of Stat3 pathway was tested in rat hippocampal tissues and primary cultured astrocytes. The expression levels of ROCK2 in the hippocampus of TLE patients were significantly increased compared with the control group, which was due to the hypomethylation of ROCK2 promoter. Fasudil, a specific Rho-kinase inhibitor, alleviated epileptic seizures in the pilocarpine rat model of TLE. Furthermore, ROCK2 activated the Stat3 pathway in pilocarpine-treated epilepsy rats, and the spearman correlation method confirmed that ROCK2 is associated with Stat3 activation in TLE patients. In addition, ROCK2 was predominantly expressed in astrocytes during epileptogenesis, and induced epileptogenesis by activating astrocyte cell cycle progression via Stat3 pathway. The overexpressed ROCK2 plays an important role in the pathogenesis of drug-resistant epilepsy. ROCK2 accelerates astrocytes cell cycle progression via the activation of Stat3 pathway likely provides the key to explaining the process of epileptogenesis.
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Affiliation(s)
- Li-Jia Song
- Department of Pediatrics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Hua Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiao-Peng Qu
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Jun-Gong Jin
- Department of Neurosurgery, Xi'an International Medical Center, Xi'an, China
| | - Chao Wang
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Xue Jiang
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Li Gao
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Gang Li
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Da-Li Wang
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Liang-Liang Shen
- Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China.
| | - Bei Liu
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.
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21
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Zhao L, Guo Y, Guo Y, Ji X, Fan D, Chen C, Yuan W, Sun Z, Ji Z. Effect and mechanism of circRNAs in tumor angiogenesis and clinical application. Int J Cancer 2021; 150:1223-1232. [PMID: 34724210 DOI: 10.1002/ijc.33863] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/27/2021] [Accepted: 09/30/2021] [Indexed: 12/12/2022]
Abstract
Tumor blood vessels provide oxygen and necessary nutrients for the tumor, which provides the basis for tumor metastasis. Therefore, tumor angiogenesis plays a very important role in tumor growth and metastasis. In contrast to linear RNAs, circRNAs represent a type of closed-loop RNA with diverse biological functions. At the same time, circRNAs have strong stability, timeliness, tissue specificity and disease specificity. With the rapid development of next-generation sequencing and bioinformatics, there have been an increasing number of studies on circRNAs. At present, a large number of studies have reported that circRNAs regulate tumor growth, invasion, metastasis, tumor metabolism, tumor immunity and other biological functions. Increasing evidence has shown that circRNAs also play an important role in tumor angiogenesis. In this review, we briefly introduced tumor angiogenesis and circRNAs and outlined the main ways that circRNAs affect tumor angiogenesis from multiple aspects. Finally, we further explored the potential clinical application value of circRNAs in the context of tumor angiogenesis.
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Affiliation(s)
- Luyang Zhao
- BGI College, Zhengzhou University, Zhengzhou, Henan, China.,Henan Institute of Medical and Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan, China.,School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yuying Guo
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yaxin Guo
- Henan Institute of Medical and Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan, China.,Department of Basic Medical, Academy of Medical Sciences of Zhengzhou University, Zhengzhou, Henan, China.,Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiang Ji
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Dandan Fan
- Henan Institute of Medical and Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan, China
| | - Chen Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China.,Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Weitang Yuan
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhenqiang Sun
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.,Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhenyu Ji
- Henan Institute of Medical and Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan, China.,Department of Basic Medical, Academy of Medical Sciences of Zhengzhou University, Zhengzhou, Henan, China
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22
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Long non-coding RNAs and circular RNAs in tumor angiogenesis: From mechanisms to clinical significance. Mol Ther Oncolytics 2021; 22:336-354. [PMID: 34553023 PMCID: PMC8426176 DOI: 10.1016/j.omto.2021.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) execute a wide array of functions in physiological and pathological processes, including tumor progression. Angiogenesis, an elaborate multistep process driving new blood vessel formation, accelerates cancer progression by supplying nutrients and energy. Dysregulated lncRNAs and circRNAs can reportedly impact cancer progression by influencing angiogenesis. However, the expanding landscape of lncRNAs and circRNAs in tumor progression-dependent angiogenesis remains largely unknown. This review summarizes the major functions of angiogenic lncRNAs (Angio-LncRs) and angiogenic circRNAs (termed Angio-CircRs) and their cancer mechanisms. Moreover, we highlight the commonalities of lncRNAs and circRNAs in epigenetic, transcriptional, and post-transcriptional regulation as well as illustrate how Angio-LncRs and Angio-CircRs induce cancer onset and progression. We also discuss their potential clinical applications in diagnosis, prognosis, and anti-angiogenic therapies.
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23
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Han C, Wang S, Wang H, Zhang J. Exosomal circ-HIPK3 Facilitates Tumor Progression and Temozolomide Resistance by Regulating miR-421/ZIC5 Axis in Glioma. Cancer Biother Radiopharm 2021; 36:537-548. [PMID: 32644821 DOI: 10.1089/cbr.2019.3492] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Chengchen Han
- Department of Neurosurgery, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Shuwei Wang
- Department of Neurosurgery, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Hongwei Wang
- Department of Neurosurgery, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Jianning Zhang
- Department of Neurosurgery, The Sixth Medical Center of PLA General Hospital, Beijing, China
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24
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Zhao SF, Ye YX, Xu JD, He Y, Zhang DW, Xia ZY, Wang S. Long non-coding RNA KCNQ1OT1 increases the expression of PDCD4 by targeting miR-181a-5p, contributing to cardiomyocyte apoptosis in diabetic cardiomyopathy. Acta Diabetol 2021; 58:1251-1267. [PMID: 33907874 DOI: 10.1007/s00592-021-01713-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/26/2021] [Indexed: 12/19/2022]
Abstract
AIMS Diabetic cardiomyopathy (DCM) is a specific myocardial alteration in patients with diabetics. LncRNA KCNQ1OT1 has been previously demonstrated to be involved in various diabetic complications. Our aims are to further investigate the underlying regulatory mechanisms/pathways of KCNQ1OT1 in DCM. METHODS In vitro and in vivo models of DCM were established in high glucose (HG)-treated human cardiomyocytes and in streptozotocin (STZ)-induced diabetic mice, respectively. Gene and protein expressions were examined by qPCR, western blotting and ELISA. Cell proliferation and apoptosis were determined by CCK8 assay, flow cytometry and TUNEL staining. The association between KCNQ1OT1 and miR-181a-5p, miR-181a-5p and PDCD4 was predicted using bioinformatics methods and subsequently confirmed by dual luciferase reporter and RNA immunoprecipitation assays. Mouse cardiac tissues were collected and analysed using HE staining, Masson's staining and immunohistochemical analysis. RESULTS KCNQ1OT1 and PDCD4 were upregulated in HG-treated human cardiomyocytes, while miR-181a-5p was downregulated. In addition, KCNQ1OT1 could negatively regulate miR-181a-5p expression; meanwhile, miR-181a-5p also negatively regulated PDCD4 expression. KCNQ1OT1 silencing suppressed the expression of inflammatory cytokines and cell apoptosis in vitro, whereas inhibition of miR-181a-5p abrogated those effects of KCNQ1OT1 knockdown. Moreover, overexpressed PDCD4 abolished the inhibition on inflammation and apoptosis caused by miR-181a-5p overexpression. Finally, KCNQ1OT1 knockdown reduced the expression of PDCD4 via regulating miR-181a-5p and inhibited myocardial inflammation and cardiomyocyte apoptosis in the in vivo DCM model. CONCLUSIONS Our findings suggest that KCNQ1OT1 and its target gene miR-181a-5p regulate myocardial inflammation and cardiomyocyte apoptosis by modulating PDCD4 in DCM.
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Affiliation(s)
- Shuo-Fang Zhao
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences and Guangdong Cardiovascular Institute, No.102, Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Ying-Xian Ye
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences and Guangdong Cardiovascular Institute, No.102, Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Jin-Dong Xu
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences and Guangdong Cardiovascular Institute, No.102, Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Yi He
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences and Guangdong Cardiovascular Institute, No.102, Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Deng-Wen Zhang
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences and Guangdong Cardiovascular Institute, No.102, Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, Guangdong Province, People's Republic of China
| | - Zheng-Yuan Xia
- Department of Anesthesiology, The University of Hong Kong, Pok Fu Lam, 999077, Hong Kong SAR, People's Republic of China
| | - Sheng Wang
- Department of Anesthesiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences and Guangdong Cardiovascular Institute, No.102, Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, Guangdong Province, People's Republic of China.
- Department of Anesthesiology, Linzhi People's Hospital, Linzhi, Tibet, People's Republic of China.
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25
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Khorsandi K, Esfahani H, Abrahamse H. Characteristics of circRNA and its approach as diagnostic tool in melanoma. Expert Rev Mol Diagn 2021; 21:1079-1094. [PMID: 34380368 DOI: 10.1080/14737159.2021.1967749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
One of the most common types of cancer in the world is skin cancer, which has been divided into two groups: non-melanoma and melanoma skin cancer. Different external and internal agents are considered as risk factors for melanoma skin cancer pathogenesis but the exact mechanisms are not yet confirmed. Genetic and epigenetic changes, UV exposure, arsenic compounds, and chemical substances are contributory factors to the development of melanoma. A correlation has emerged between new therapies and the discovery of a basic molecular pattern for skin cancer patients. Circular RNAs (circRNAs) are described as a unique group of extensively expressed endogenous regulatory RNAs with closed-loop structure bonds connecting the 5' and 3' ends, which are commonly expressed in mammalian cells. In this review, we describe the biogenesis of circular RNAs and its function in cancerous conditions focusing on the crosstalk between different circRNAs and melanoma. Increasing evidence suggests that circRNAs appears to be relative to the origin and development of skin-related diseases like malignant melanoma. Different circular RNAs like hsa_circ_0025039, hsa_circRNA006612, circRNA005537, and circANRIL, by targeting different cellular and molecular targets (e.g., CDK4, DAB2IP, ZEB1, miR-889, and let-7 c-3p), can participate in melanoma cancer progression.
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Affiliation(s)
- Khatereh Khorsandi
- Department of Photodynamic, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
| | - HomaSadat Esfahani
- Department of Photodynamic, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
| | - Heidi Abrahamse
- Laser Research Centre, Nrf SARChI Chair: Laser Applications in Health, Faculty of Health Sciences, University of Johannesburg, Auckland Park, South Africa
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26
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Wang JH, Wu XJ, Duan YZ, Li F. Circular RNA_CNST Promotes the Tumorigenesis of Osteosarcoma Cells by Sponging miR-421. Cell Transplant 2021; 29:963689720926147. [PMID: 32693639 PMCID: PMC7563816 DOI: 10.1177/0963689720926147] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Circular RNAs (circRNAs) act crucial roles in the progression of multiple malignancies including osteosarcoma (OS). But, the underlying mechanisms by which hsa_circ_0017311 (circCNST) contributes to the tumorigenesis of OS remain poorly understood. Our present study aimed to explore the role and mechanisms of circCNST in OS tumorigenesis. The differentially expressed circRNAs were identified by the Gene Expression Omnibus database. The association of circCNST with clinicopathological features and prognosis in patients with OS was analyzed by RNA fluorescence in situ hybridization (FISH) and quantitative real-time polymerase chain reaction (PCR) analysis. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), colony formation assays, and a xenograft tumor model were conducted to assess the role of circCNST in OS cells in vitro and in vivo. CircCNST-specific binding with miR-421 was confirmed by FISH, luciferase gene report, and RNA immunoprecipitation assays. As a result, we found that the expression levels of circCNST were dramatically increased in OS tissues and cell lines as compared with the adjacent normal tissues, and it was associated with tumor size and poor survival in OS patients. Knockdown of circCNST repressed cell viability, colony formation, and xenograft tumor growth, while restored expression of circCNST reversed these effects. Furthermore, circCNST was colocalized with miR-421 in the cytoplasm and acted as a sponge of miR-421, which attenuated circCNST-induced proliferation-promoting effects in OS cells by targeting SLC25A3. In conclusion, our findings demonstrate that circCNST promotes the tumorigenesis of OS cells by sponging miR-421, and provides a potential biomarker for patients with OS.
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Affiliation(s)
- Ji-Hai Wang
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Xue-Jian Wu
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Yong-Zhuang Duan
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Feng Li
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Henan, China
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27
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Guan H, Luo W, Liu Y, Li M. Novel circular RNA circSLIT2 facilitates the aerobic glycolysis of pancreatic ductal adenocarcinoma via miR-510-5p/c-Myc/LDHA axis. Cell Death Dis 2021; 12:645. [PMID: 34168116 PMCID: PMC8225611 DOI: 10.1038/s41419-021-03918-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 06/05/2021] [Accepted: 06/08/2021] [Indexed: 01/17/2023]
Abstract
Increasing evidence has indicated the great diagnostic and therapeutic potentials of circular RNAs (circRNAs) in human cancers. Although the biological roles of circRNAs in pancreatic ductal adenocarcinoma (PDAC) have been partially annotated, the potential regulatory mechanism of circRNAs in PDAC tumorigenesis remains poorly understood. Here, our study found that the novel circRNA circSLIT2 was significantly upregulated in PDAC tissues and cells. Clinically, ectopic high-expression of circSLIT2 was correlated with unfavorable prognosis of PDAC patients. Functional experiments demonstrated that circSLIT2 promoted the aerobic glycolysis and proliferation of PDAC cells in vitro, and circSLIT2 knockdown inhibited tumor growth in vivo. Mechanistically, circSLIT2 acted as miRNA sponge to target miR-510-5p/c-Myc axis. Furthermore, c-Myc bound with the promoter region of lactate dehydrogenase A (LDHA) to activate the transcription. Collectively, present findings reveal that circSLIT2/miR-510-5p/c-Myc/LDHA axis participates in the aerobic glycolysis and carcinogenesis of PDAC, and may act as a promising therapeutic target.
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MESH Headings
- Aged
- Animals
- Apoptosis
- Carcinoma, Pancreatic Ductal/enzymology
- Carcinoma, Pancreatic Ductal/genetics
- Carcinoma, Pancreatic Ductal/pathology
- Cell Line, Tumor
- Cell Proliferation
- Female
- Gene Expression Regulation, Enzymologic
- Gene Expression Regulation, Neoplastic
- Glycolysis
- Humans
- L-Lactate Dehydrogenase/genetics
- L-Lactate Dehydrogenase/metabolism
- Male
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Middle Aged
- Pancreatic Neoplasms/enzymology
- Pancreatic Neoplasms/genetics
- Pancreatic Neoplasms/pathology
- Proto-Oncogene Proteins c-myc/genetics
- Proto-Oncogene Proteins c-myc/metabolism
- RNA, Circular/genetics
- RNA, Circular/metabolism
- Signal Transduction
- Transcription, Genetic
- Mice
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Affiliation(s)
- Hua Guan
- Department of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Wei Luo
- Department of Stomatology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yuping Liu
- Department of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
| | - Mingfei Li
- Department of Hepatobiliary Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
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28
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Sun W, Zhou H, Han X, Hou L, Xue X. Circular RNA: A novel type of biomarker for glioma (Review). Mol Med Rep 2021; 24:602. [PMID: 34165178 PMCID: PMC8240176 DOI: 10.3892/mmr.2021.12240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 05/12/2021] [Indexed: 12/18/2022] Open
Abstract
With the rapid development of sequencing technologies, the characteristics and functions of circular RNAs (circRNAs) in different tissues, and their underlying pathophysiological mechanisms, have been identified. circRNAs are significantly enriched in the brain and are continually expressed from the embryonic stage to the adult stage in rats. Previous studies have reported that certain circRNAs are differentially expressed in glioma and regulate a number of biological processes, such as cell proliferation, metastasis and oncogenesis of glioma. Furthermore, certain circRNAs have been associated with tumor size, World Health Organization tumor grade and poor prognosis in patients with glioma. It has been hypothesized that circRNAs may be involved in the onset and progression of glioma through transcriptional regulation, protein translation and binding to microRNAs. These properties and functions suggest the potential of circRNAs as prognostic biomarkers and therapeutic targets for glioma. For the present review, published studies were examined from PubMed, Embase, Cochrane Central and the reference lists of the retrieved articles. The aim of the present review was to summarize the progress of circRNA research in glioma, discuss the potential diagnostic and prognostic values, and the roles of circRNAs in glioma, and provide a novel theoretical basis and research concepts for the prediction, diagnosis and treatment of glioma.
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Affiliation(s)
- Wei Sun
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Huandi Zhou
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Xuetao Han
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Liubing Hou
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Xiaoying Xue
- Department of Radiotherapy, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
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29
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Tang T, Wang H, Han Y, Huang H, Niu W, Fei M, Zhu Y. The Role of N-myc Downstream-Regulated Gene Family in Glioma Based on Bioinformatics Analysis. DNA Cell Biol 2021; 40:949-968. [PMID: 34115542 DOI: 10.1089/dna.2020.6216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Glioma is the most common type of primary tumor in the central nervous system, and the molecular mechanisms remain elusive. N-myc downstream-regulated gene (NDRG) family is reported to take part in the pathogenesis of various diseases, including some preliminary exploration in glioma. However, there has been no bioinformatics analysis of NDRG family in glioma yet. Herein, we focused on the expression changes of NDRGs with their value in predicting patients' prognoses, upstream regulatory mechanisms (DNA mutation, DNA methylation, transcription factors, and microRNA regulation) and gene enrichment analysis based on co-expressed genes with data from public databases. Furthermore, the expression pattern of NDRGs was verified by the paired glioma and peritumoral samples in our institute. It was suggested that NDRGs were differentially expressed genes in glioma. In particular, the lower expression of NDRG2 or NDRG4 could serve as a predictor of higher grade tumor and poorer prognosis. Also, NDRGs might play a crucial role in signal transduction, energy metabolism, and cross-talk among cells in glioma, under the control of a complex regulatory network. This study enables us to better understand the role of NDRGs in glioma and with further research, it may contribute to the development of glioma treatment.
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Affiliation(s)
- Ting Tang
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
| | - Handong Wang
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
| | - Yanling Han
- Department of Neurosurgery, Jinling Hospital, Nanjing, P.R. China
| | - Hanyu Huang
- Department of Neurosurgery, Affiliated Jinling Hospital, Nanjing Medical University, Nanjing, P.R. China
| | - Wenhao Niu
- Department of Neurosurgery, Jinling Hospital, Nanjing, P.R. China
| | - Maoxing Fei
- Department of Neurosurgery, Jinling Hospital, Nanjing, P.R. China
| | - Yihao Zhu
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
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30
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Cen L, Liu R, Liu W, Li Q, Cui H. Competing Endogenous RNA Networks in Glioma. Front Genet 2021; 12:675498. [PMID: 33995499 PMCID: PMC8117106 DOI: 10.3389/fgene.2021.675498] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
Gliomas are the most common and malignant primary brain tumors. Various hallmarks of glioma, including sustained proliferation, migration, invasion, heterogeneity, radio- and chemo-resistance, contribute to the dismal prognosis of patients with high-grade glioma. Dysregulation of cancer driver genes is a leading cause for these glioma hallmarks. In recent years, a new mechanism of post-transcriptional gene regulation was proposed, i.e., "competing endogenous RNA (ceRNA)." Long non-coding RNAs, circular RNAs, and transcribed pseudogenes act as ceRNAs to regulate the expression of related genes by sponging the shared microRNAs. Moreover, coding RNA can also exert a regulatory role, independent of its protein coding function, through the ceRNA mechanism. In the latest glioma research, various studies have reported that dysregulation of certain ceRNA regulatory networks (ceRNETs) accounts for the abnormal expression of cancer driver genes and the establishment of glioma hallmarks. These achievements open up new avenues to better understand the hidden aspects of gliomas and provide new biomarkers and potential efficient targets for glioma treatment. In this review, we summarize the existing knowledge about the concept and logic of ceRNET and highlight the emerging roles of some recently found ceRNETs in glioma progression.
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Affiliation(s)
- Liang Cen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Ruochen Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Wei Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
| | - Qianqian Li
- Department of Psychology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Department of Neurosurgery, National Clinical Research Center for Child Health and Disorders, Children’s Hospital of Chongqing Medical University, Chongqing, China
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31
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Guan Q, Yuan L, Lin A, Lin H, Huang X, Ruan J, Zhuo Z. KRAS gene polymorphisms are associated with the risk of glioma: a two-center case-control study. Transl Pediatr 2021; 10:579-586. [PMID: 33850816 PMCID: PMC8039792 DOI: 10.21037/tp-20-359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Glioma, also known as neuroglioma, is the most common primary tumors of the central nervous system. Many previous studies have reported associations between RAS gene polymorphisms and multiple tumors. However, the role of RAS gene polymorphisms on glioma risk has not been investigated. METHODS We conducted a two-center case-control study to investigate whether the RAS gene polymorphisms predispose individuals to gliomas in 248 healthy controls and 191 glioma patients. RAS gene polymorphisms (rs12587 G>T, rs7973450 A>G, rs7312175 G>A in KRAS, rs2273267 A>T in NRAS) were genotyped by the TaqMan assay. The relationship between RAS gene functional single nucleotide polymorphisms (SNPs) and the risk of glioma was evaluated based on odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Individuals with KRAS rs7312175 GA genotype were more likely to develop glioma than those with GG genotype (adjusted OR =1.66, 95% CI: 1.05-2.64, P=0.030). However, the other three SNPs could not affect glioma risk. In stratified analysis of age, gender, subtypes, and clinical stages, rs7312175 GA carriers were more likely to develop glioma in the following subgroups: children less than 60 months, tumor derived from the astrocytic tumors, and clinical stages I. CONCLUSIONS The study showed that polymorphism rs7312175 GA in the KRAS gene was associated with increased glioma susceptibility. Further investigation is warranted to confirm these findings and to better elucidate the involved biological pathways.
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Affiliation(s)
- Qian Guan
- School of Medicine, South China University of Technology, Guangzhou, China.,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, China
| | - Li Yuan
- Department of Pathology, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Ao 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, China
| | - Huiran Lin
- Faculty of Medicine, Macau University of Science and Technology, Macau, China
| | - Xiaokai Huang
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jichen Ruan
- Department of Pathology, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Zhenjian Zhuo
- School of Medicine, South China University of Technology, Guangzhou, China.,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, China
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32
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Liu X, Liu X, Li M, Zhang Y, Chen W, Zhang M, Zhang C, Zhang M. Mechanical Stretch Induces Smooth Muscle Cell Dysfunction by Regulating ACE2 via P38/ATF3 and Post-transcriptional Regulation by miR-421. Front Physiol 2021; 11:540591. [PMID: 33536929 PMCID: PMC7848200 DOI: 10.3389/fphys.2020.540591] [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: 03/05/2020] [Accepted: 12/08/2020] [Indexed: 12/25/2022] Open
Abstract
Mechanical stretch promotes deregulation of vascular smooth muscle cell (VSMC) functions during hypertension-induced vascular remodeling. ACE2 has a wide range of cardiovascular and renal protective effects. Loss of ACE2 is associated with cardiovascular disease, but little is known about the regulation of its expression, especially by abnormal mechanical stretch during hypertension. The present study was designed to investigate the contribution of ACE2 to vascular remodeling under mechanical stretch and to assess the possible underlying mechanisms. The abdominal aortic constriction model was established to mimic the environment in vivo. FX-5000T Strain Unit provided mechanical stretch in vitro. Overexpression was used to analyze the role of ACE2 played in the proliferation, migration, apoptosis, and collagen metabolism of the VSMCs. RT-qPCR, Western blot, luciferase assay, and ChIP assay were used to elucidate the molecular mechanism of ACE2 expression regulated by stretch. We found that mechanical stretch modulated the expression of the ACE2/Ang-(1–7) and ACE/AngII axis. ACE2 was mechanically sensitive and was involved in the stretch-induced dysfunction of VSMCs. The p38 MAPK/ATF3 pathway and miR-421 participated in the regulation of ACE2. Thus, ACE2 may contribute to the development of vascular remodeling under conditions of mechanical stretch.
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Affiliation(s)
- Xiaolin Liu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Xinxin Liu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Mengmeng Li
- The Key Laboratory of Cardiovascular Remodeling and Function Research, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Yu Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Weijia Chen
- The Key Laboratory of Cardiovascular Remodeling and Function Research, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Meng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Cheng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Mei Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
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Cheng D, Wang J, Dong Z, Li X. Cancer-related circular RNA: diverse biological functions. Cancer Cell Int 2021; 21:11. [PMID: 33407501 PMCID: PMC7789196 DOI: 10.1186/s12935-020-01703-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/04/2020] [Indexed: 02/06/2023] Open
Abstract
Noncoding RNAs, including long noncoding RNAs (lncRNAs), microRNAs (miRNAs) and circular RNAs (circRNAs), are involved in regulating biological functions. In recent decades, miRNAs and lncRNAs have both inspired a wave of research, but the study of circRNA functions is still in its infancy. Studies have found that circRNAs actively participate in the occurrence and development of various diseases, which emphasizes the importance of circRNAs. Here, we review the features and classification of circRNAs and summarize their functions. Then, we briefly describe how to analyze circRNAs by bioinformatics procedures. In addition, the relationship between circRNAs and cancers is discussed with an emphasis on proving whether circRNAs can be potential biomarkers for the prognosis and diagnosis of cancer.
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Affiliation(s)
- Dan Cheng
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008, Henan, China
| | - Jing Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008, Henan, China
| | - Zigang Dong
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008, Henan, China
| | - Xiang Li
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China. .,China-US (Henan) Hormel Cancer Institute, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008, Henan, China.
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Chen Z, Xu W, Zhang D, Chu J, Shen S, Ma Y, Wang Q, Liu G, Yao T, Huang Y, Ye H, Wang J, Ma J, Fan S. circCAMSAP1 promotes osteosarcoma progression and metastasis by sponging miR-145-5p and regulating FLI1 expression. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 23:1120-1135. [PMID: 33664993 PMCID: PMC7901030 DOI: 10.1016/j.omtn.2020.12.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 12/16/2020] [Indexed: 12/18/2022]
Abstract
Osteosarcoma is the most common primary malignant bone tumor in adolescents. While chemotherapy combined with surgery can improve the prognosis of some patients, chemo-resistance is still a huge obstacle in osteosarcoma treatment. Accumulating evidence demonstrates that circular RNAs (circRNAs) are involved in cancer progression and metastasis, but their specific role in osteosarcoma remains mostly undescribed. In this study, we performed circRNA deep sequencing and identified 88 distinct circRNAs from a human osteosarcoma cell lines group (143B, HOS, SJSA, and U2OS) and the human osteoblast hFOB 1.19 (control). We found that circCAMSAP1, also named hsa_circ_0004338, is significantly upregulated in human osteosarcoma tissues and cell lines, and it is positively correlated with osteosarcoma development. Silencing of circCAMSAP1 effectively suppresses osteosarcoma cell growth, apoptosis, migration, and invasion. Furthermore, we validated that circCAMSAP1 functions in osteosarcoma tumorigenesis through a circCAMSAP1/miR-145-5p/friend leukemia virus integration 1 (FLI1) pathway. FLI1 promotes osteosarcoma tumorigenesis and miR-145-5p suppresses FLI translation. circCAMSAP1 directly sequesters miR-145-5p in the cytoplasm and inhibits its activity to suppress osteosarcoma tumorigenesis. Moreover, the regulatory role of circCAMSAP1 upregulation was examined and validated in rats. In summary, our findings provide evidence that circCAMSAP1 act as a "microRNA sponge" and suggest a new therapeutic target of human osteosarcoma.
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Affiliation(s)
- Zizheng Chen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China.,Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Wenbin Xu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
| | - Deguang Zhang
- Department of Head and Neck Surgery, Institution of Micro-Invasion Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China
| | - Junjie Chu
- Department of Head and Neck Surgery, Institution of Micro-Invasion Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China
| | - Shuying Shen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
| | - Yan Ma
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
| | - Qingxin Wang
- Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Gang Liu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
| | - Teng Yao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
| | - Yizhen Huang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China.,Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Huali Ye
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
| | - Jiying Wang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
| | - Jianjun Ma
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
| | - Shunwu Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, Zhejiang Province, China
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Li X, Zou ZZ, Wen M, Xie YZ, Peng KJ, Luo T, Liu SY, Gu Q, Li JJ, Luo ZY. ZLM-7 inhibits the occurrence and angiogenesis of breast cancer through miR-212-3p/Sp1/VEGFA signal axis. Mol Med 2020; 26:109. [PMID: 33187481 PMCID: PMC7666510 DOI: 10.1186/s10020-020-00239-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 11/03/2020] [Indexed: 11/26/2022] Open
Abstract
Background Breast cancer (BC) is a common malignant tumor with poor prognosis. Angiogenesis is related to the growth and progression of solid tumors and associated with prognosis. ZLM-7, SP1, VEGFA and miR-212-3p were associated with BC angiogenesis and proliferation, however the detailed mechanism was not clear. This study aimed to reveal the regulatory mechanism of angiogenesis of BC. Methods BC cell lines were treated with 10 nM ZLM-7 for 8 h. We detected protein expression level by western blot and RNA expression level by qRT-PCR. Overexpression or inhibition of miR-212-3p is performed using miR-212-3p mimics or miR-212-3p inhibitor, Sp1 overexpression using pcDNA3.1 vector. Angiogenesis was analyzed by co-culturing BC cell lines and HUVEC cells. To evaluate regulatory relationship between miR-212-3p and Sp1, dual luciferase assay was performed. Besides, the direct interaction between Sp1 and VEGFA was analyzed by ChIP. Migration and invasion were analyzed by transwell assay and proliferation was detected by clone formation assay. In mice xenograft model developed using BC cells, we also detected angiogenesis marker CD31 through immunohistochemistry. Results ZLM-7 up-regulated miR-212-3p and inhibited invasion, migration, proliferation and angiogenesis of BC, while miR-212-3p inhibitor antagonized such effects. Binding sequence was revealed between miR-212-3p and Sp1, and expression of Sp1 was inhibited by miR-212-3p on both protein and mRNA level. Sp1 could interact with VEGFA and promoted its expression. Overexpression of miR-212-3p inhibited migration, invasion, proliferation and angiogenesis of BC cell lines, while Sp1 overexpression showed the opposite effect and could antagonize these effects of miR-212-3p overexpression. ZLM-7 decreased VEGFA expression, which was rescued by co-transfection with miR-212-3p inhibitor. Similar, ZLM-7 could inhibit tumor growth and angiogenesis through the miR-212-3p/Sp1/VEGFA axis in vivo. Conclusions ZLM-7 could directly up-regulate miR-212-3p in BC. MiR-212-3p could inhibit VEGFA expression through Sp1, thereby inhibiting angiogenesis and progression of BC.
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Affiliation(s)
- Xuan Li
- Molecular Biology Research Centre, Hunan Province Key Laboratory of Basic and Applied Hematology, Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, 410008, Hunan, China
| | - Zi-Zheng Zou
- Molecular Biology Research Centre, Hunan Province Key Laboratory of Basic and Applied Hematology, Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, 410008, Hunan, China
| | - Min Wen
- Molecular Biology Research Centre, Hunan Province Key Laboratory of Basic and Applied Hematology, Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, 410008, Hunan, China
| | - Yuan-Zhu Xie
- Molecular Biology Research Centre, Hunan Province Key Laboratory of Basic and Applied Hematology, Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, 410008, Hunan, China
| | - Kun-Jian Peng
- Molecular Biology Research Centre, Hunan Province Key Laboratory of Basic and Applied Hematology, Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, 410008, Hunan, China
| | - Tiao Luo
- Hunan Key Laboratory of Oral Health Research, Xiangya Stomatological Hospital, Xiangya School of Stomatology, Central South University, Changsha, 410008, Hunan, China
| | - Su-You Liu
- School of Pharmaceutical Sciences, Central South University, Changsha, 410013, China
| | - Qin Gu
- Molecular Biology Research Centre, Hunan Province Key Laboratory of Basic and Applied Hematology, Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, 410008, Hunan, China
| | - Ji-Jia Li
- Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
| | - Zhi-Yong Luo
- Molecular Biology Research Centre, Hunan Province Key Laboratory of Basic and Applied Hematology, Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, 410008, Hunan, China.
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Yin D, Liu L, Shi Z, Zhang L, Yang Y. Ropivacaine Inhibits Cell Proliferation, Migration and Invasion, Whereas Induces Oxidative Stress and Cell Apoptosis by circSCAF11/miR-145-5p Axis in Glioma. Cancer Manag Res 2020; 12:11145-11155. [PMID: 33173347 PMCID: PMC7648566 DOI: 10.2147/cmar.s274975] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022] Open
Abstract
Background Glioma is a heterogeneous aggressive tumor. Ropivacaine, a widely used anesthetic, has been shown to repress the progression of multiple cancers, including glioma. In this study, the effects of ropivacaine on cell proliferation, migration, invasion and apoptosis in glioma were revealed. Methods The expression levels of circSCAF11 and miR-145-5p were detected by quantitative real-time polymerase chain reaction (qRT-PCR) in glioma tissues and cells. The expression levels of epithelial–mesenchymal transition (EMT)-related proteins were determined by Western blot. Oxidative stress was evaluated by the measurement of reactive oxygen species (ROS) and determination of mitochondrial 8-hydroxy-2-deoxyguanosine (8-OHdG) assay in glioma cells. Cell proliferation was determined by cell counting kit-8 (CCK-8) assay and cell colony formation assay. Cell apoptosis and metastasis were detected by flow cytometry analysis and transwell assay, respectively. The binding relationship between circSCAF11 and miR-145-5p was predicted by circular RNA Interactome and identified by dual-luciferase reporter assay and RNA immunoprecipitation assay. In vivo tumor formation assay was performed to reveal the effects between ropivacaine and circSCAF11 overexpression on tumorigenesis in vivo. Results CircSCAF11 expression was obviously upregulated and miR-145-5p was significantly downregulated in glioma tissues and cells compared with control groups. Ropivacaine treatment upregulated E-cadherin protein expression and repressed the protein expression of Vimentin. Functionally, ropivacaine exposure promoted ROS and 8-OHdG production and cell apoptosis, whereas inhibited cell proliferation, migration and invasion; however, these effects were hindered by circSCAF11 overexpression. Mechanistically, circSCAF11 was a sponge of miR-145-5p. In addition, ropivacaine was revealed to inhibit tumor growth in vivo by regulating circSCAF11 and miR-145-5p expression. Conclusion Ropivacaine suppressed glioma progression by regulating circSCAF11 and miR-145-5p, which might provide a theoretical foundation in glioma treatment.
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Affiliation(s)
- Danqin Yin
- Department of Anesthesiology, Danyang People's Hospital of Jiangsu, Danyang City, Jiangsu Province, People's Republic of China
| | - Li Liu
- Department of Anesthesiology, Tianjin Fourth Central Hospital, Tianjin City, People's Republic of China
| | - Zhengyuan Shi
- Department of Anesthesiology, Danyang People's Hospital of Jiangsu, Danyang City, Jiangsu Province, People's Republic of China
| | - Lihui Zhang
- Department of Anesthesiology, Hulunbeier Municipal People's Hospital (Hulunbuir Hospital Affiliated to Suzhou University), Hulunbeier City, Inner Mongolia Province, People's Republic of China
| | - Yan Yang
- Department of Anesthesiology, The First People's Hospital of Jiangxia District, Wuhan City, Hubei Province, People's Republic of China
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Ding X, Yang L, Geng X, Zou Y, Wang Z, Li Y, Qi R, Wang W, Li J, Yu H. CircRNAs as potential biomarkers for the clinicopathology and prognosis of glioma patients: a meta-analysis. BMC Cancer 2020; 20:1005. [PMID: 33059605 PMCID: PMC7566033 DOI: 10.1186/s12885-020-07446-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 09/21/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND An increasing number of studies have reported circular RNAs (circRNAs) as new potential biomarkers for the prognosis of gliomas. However, the overall prognostic value of circRNAs for glioma remains unclear. Therefore, this study is the first comprehensive evaluation of the clinicopathological and prognostic value of dysregulated circRNAs in the treatment of glioma patients. METHODS We systematically reviewed the online databases of PubMed, Web of Science, EMBASE, and Cochrane Library to identify studies that explored the relationship between circRNA expression and clinicopathological and prognostic factors in glioma through April 11, 2020. The quality of the included studies was evaluated by the Newcastle-Ottawa Scale (NOS) checklists. Clinicopathological features were assessed by pooled odds ratios (ORs) and 95% confidence intervals (CIs), and overall survival (OS) was assessed by hazard ratios (HRs) and 95% CIs. RESULTS Twenty-four eligible studies, including 22 studies of clinicopathological features, 1 diagnostic study, and 18 studies of prognosis, that included a total of 1390 patients were ultimately included in this study. Meta-analysis showed that highly expressed oncogenic circRNAs were significantly related to poor clinicopathological features (age: P = 0.026; tumor size: P ≤ 0.001; tumor grade: P ≤ 0.001; KPS: P = 0.012) and worse overall survival (OS) (HR = 2.01, 95% CI: 1.61-2.50, P ≤ 0.001). Moreover, we found that highly expressed tumor-suppressor circRNAs were related to better clinicopathological features (gender: P = 0.042; age: P = 0.014; tumor size: P = 0.022; tumor grade: P ≤ 0.001) and longer OS (HR = 2.70, 95% CI: 1.82-3.99, P ≤ 0.001). CONCLUSIONS In conclusion, there is a significant correlation between the dysregulated expression of circRNAs and the clinicopathology and prognosis of glioma patients.
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Affiliation(s)
- Xiangqian Ding
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
| | - Luyao Yang
- Department of Anesthesiology, Liaocheng people’s hospital, LiaoCheng, Shandong China
| | - Xin Geng
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
| | - Yanghong Zou
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
| | - Zhigang Wang
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
| | - Yao Li
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
| | - Renli Qi
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
| | - Wei Wang
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
| | - Jinghui Li
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
- Graduate School of Kunming Medical University, 650500, No.1168, Kunming, Yunnan China
| | - Hualin Yu
- Second Department of Neurosurgery, Kunming Medical University First Affiliated Hospital, 650032, No.295, Xichang road, Kunming, Yunnan China
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Non-coding RNAs in Brain Tumors, the Contribution of lncRNAs, circRNAs, and snoRNAs to Cancer Development-Their Diagnostic and Therapeutic Potential. Int J Mol Sci 2020; 21:ijms21197001. [PMID: 32977537 PMCID: PMC7582339 DOI: 10.3390/ijms21197001] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/18/2020] [Accepted: 09/20/2020] [Indexed: 12/17/2022] Open
Abstract
Brain tumors are one of the most frightening ailments that afflict human beings worldwide. They are among the most lethal of all adult and pediatric solid tumors. The unique cell-intrinsic and microenvironmental properties of neural tissues are some of the most critical obstacles that researchers face in the diagnosis and treatment of brain tumors. Intensifying the search for potential new molecular markers in order to develop new effective treatments for patients might resolve this issue. Recently, the world of non-coding RNAs (ncRNAs) has become a field of intensive research since the discovery of their essential impact on carcinogenesis. Some of the most promising diagnostic and therapeutic regulatory RNAs are long non-coding RNAs (lncRNAs), circular RNAs (circRNAs), and small nucleolar RNAs (snoRNAs). Many recent reports indicate the important role of these molecules in brain tumor development, as well as their implications in metastasis. In the following review, we summarize the current state of knowledge about regulatory RNAs, namely lncRNA, circRNAs, and snoRNAs, and their impact on the development of brain tumors in children and adults with particular emphasis on malignant primary brain tumors-gliomas and medulloblastomas (MB). We also provide an overview of how these different ncRNAs may act as biomarkers in these tumors and we present their potential clinical implications.
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Abstract
Circular RNAs (circRNAs) are covalently circularized RNA moieties that despite being relatively abundant were only recently identified and have only begun to be investigated within the last couple of years. Even though there are many thousands of genes that appear capable of producing circRNAs, and the fact that many circRNAs appear to be highly evolutionarily conserved, the function of all but a few remain to be fully explored. What has been determined, however, is that circRNAs play key regulatory roles in many aspects of biology with focus being given to their function in cancer. Most of the studies to date have found that circRNAs act as master regulator of gene expression most often than not acting to regulate levels though sequestration or "sponging" of other gene expression regulators, particularly miRNAs. They can also function directly modulating transcription, or by interfering with splicing mechanisms. Some circRNAs can also be translated into functional proteins or peptides. A combination of tissue and developmental stage specific expression along with an innate resistance to RNAse activity means that circRNAs show perhaps their greatest potential as novel biomarkers of cancer. In this chapter we consider the current state of knowledge regarding these molecules, their synthesis, function, and association with cancer. We also consider some of the challenges that remain to be overcome to allow this emerging class of RNAs to fulfill their potential in clinical practice.
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Affiliation(s)
- Carla Solé
- Molecular Oncology Group, Biodonostia Research Institute, San Sebastián, Spain
| | - Charles Henderson Lawrie
- Molecular Oncology Group, Biodonostia Research Institute, San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, Bilbao, Spain; Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
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Shao Y, Lu B. The crosstalk between circular RNAs and the tumor microenvironment in cancer metastasis. Cancer Cell Int 2020; 20:448. [PMID: 32943996 PMCID: PMC7488731 DOI: 10.1186/s12935-020-01532-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/01/2020] [Indexed: 02/06/2023] Open
Abstract
Background Carcinomas are highly heterogeneous with regard to various cancer cells within a tumor microenvironment (TME), which is composed of stromal cells, blood vessels, immunocytes, and modified extracellular matrix. Focus of the study Circular RNAs (circRNAs) are non-coding RNAs that are expressed in cancer and stromal cells. They are closely associated with cancer metastasis as their expression in tumor cells directs the latter to migrate to different organs. circRNAs packaged in exosomes might be involved in this process. This is particularly important as the TME acts in tandem with cancer cells to enhance their proliferation and metastatic capability. In this review, we focus on recent studies on the crosstalk between circRNAs and the TME during cancer metastasis. Conclusion We particularly emphasize the roles of the interaction between circRNAs and the TME in anoikis resistance, vessel co-option, and local circRNA expression in directing homing of exosome.
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Affiliation(s)
- Ying Shao
- Department of Surgical Pathology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang China
| | - Bingjian Lu
- Department of Surgical Pathology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang China
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Zhang B, Liu Z, Cao K, Shan W, Liu J, Wen Q, Wang R. Circ-SPECC1 modulates TGFβ2 and autophagy under oxidative stress by sponging miR-33a to promote hepatocellular carcinoma tumorigenesis. Cancer Med 2020; 9:5999-6008. [PMID: 32627938 PMCID: PMC7433841 DOI: 10.1002/cam4.3219] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 12/12/2022] Open
Abstract
Circular RNAs (circRNAs) play vital roles in the pathogenesis and development of multiple cancers, including hepatocellular carcinoma (HCC). Nevertheless, the regulatory mechanisms of circ-SPECC1 in HCC remain poorly understood. In our study, we found that circ-SPECC1 was apparently downregulated in H2 O2 -treated HCC cells. Additionally, knockdown of circ-SPECC1 inhibited cell proliferation and promoted cell apoptosis of HCC cells under H2 O2 treatment. Moreover, circ-SPECC1 inhibited miR-33a expression by direct interaction, and miR-33a inhibitor partially reversed the effect of circ-SPECC1 knockdown on proliferation and apoptosis of H2 O2 -treated HCC cells. Furthermore, TGFβ2 was demonstrated to be a target gene of miR-33a and TGFβ2 overexpression rescued the phenotypes of HCC cells attenuated by miR-33a mimics. Meanwhile, autophagy inhibition by 3-methyladenine (3-MA) abrogated the effect of miR-33a mimics on proliferation and apoptosis of H2 O2 -treated HCC cells. Finally, knockdown of circ-SPECC1 hindered tumor growth in vivo. In conclusion, our study demonstrated that circ-SPECC1 regulated TGFβ2 and autophagy to promote HCC tumorigenesis under oxidative stress via miR-33a. These findings might provide potential treatment strategies for patients with HCC.
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Affiliation(s)
- Bin Zhang
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Zhiyi Liu
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Kuan Cao
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Wengang Shan
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Jin Liu
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Quan Wen
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
| | - Renhao Wang
- Institute of Digestive DiseasesXuzhou Medical UniversityXuzhouJiangsuChina
- Department of General SurgeryAffiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
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Identification of circRNA-lncRNA-miRNA-mRNA Competitive Endogenous RNA Network as Novel Prognostic Markers for Acute Myeloid Leukemia. Genes (Basel) 2020; 11:genes11080868. [PMID: 32751923 PMCID: PMC7465400 DOI: 10.3390/genes11080868] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/23/2020] [Accepted: 07/29/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Acute myeloid leukemia (AML) is one of the most common malignant and aggressive hematologic tumors, and its pathogenesis is associated with abnormal post-transcriptional regulation. Unbalanced competitive endogenous RNA (ceRNA) promotes tumorigenesis and progression, and greatly contributes to tumor risk classification and prognosis. However, the comprehensive analysis of the circular RNA (circRNA)-long non-coding RNA (lncRNA)-miRNA-mRNA ceRNA network in the prognosis of AML is still rarely reported. Method: We obtained transcriptome data of AML and normal samples from The Cancer Genome Atlas (TCGA), Genotype-tissue Expression (GTEx), and Gene Expression Omnibus (GEO) databases, and identified differentially expressed (DE) mRNAs, lncRNAs, and circRNAs. Then, the targeting relationships among lncRNA-miRNA, circRNA-miRNA, and miRNA-mRNA were predicted, and the survival related hub mRNAs were further screened by univariate and multivariate Cox proportional hazard regression. Finally, the AML prognostic circRNA-lncRNA-miRNA-mRNA ceRNA regulatory network was established. Results: We identified prognostic 6 hub mRNAs (TM6SF1, ZMAT1, MANSC1, PYCARD, SLC38A1, and LRRC4) through Cox regression model, and divided the AML samples into high and low risk groups according to the risk score obtained by multivariate Cox regression. Survival analysis verified that the survival rate of the high-risk group was significantly reduced (p < 0.0001). The prognostic ceRNA network of 6 circRNAs, 32 lncRNAs, 8 miRNAs, and 6 mRNAs was established according to the targeting relationship between 6 hub mRNAs and other RNAs. Conclusion: In this study, ceRNA network jointly participated by circRNAs and lncRNAs was established for the first time. It comprehensively elucidated the post-transcriptional regulatory mechanism of AML, and identified novel AML prognostic biomarkers, which has important guiding significance for the clinical diagnosis, treatment, and further scientific research of AML.
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43
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Song H, Liu Q, Liao Q. Circular RNA and tumor microenvironment. Cancer Cell Int 2020; 20:211. [PMID: 32518520 PMCID: PMC7268656 DOI: 10.1186/s12935-020-01301-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 05/27/2020] [Indexed: 02/07/2023] Open
Abstract
Circular RNAs (circRNAs) are small non-coding RNAs with a unique ring structure and play important roles as gene regulators. Disturbed expressions of circRNAs is closely related to varieties of pathological processes. The roles of circRNAs in cancers have gained increasing concerns. The communications between the cancer cells and tumor microenvironment (TME) play complicated roles to affect the malignant behaviors of cancers, which potentially present new therapeutic targets. Herein, we reviewed the roles of circRNAs in the TME.
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Affiliation(s)
- Huixin Song
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730 China
| | - Qiaofei Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730 China
| | - Quan Liao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, 100730 China
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44
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Yang CM, Qiao GL, Song LN, Bao S, Ma LJ. Circular RNAs in gastric cancer: Biomarkers for early diagnosis. Oncol Lett 2020; 20:465-473. [PMID: 32565971 PMCID: PMC7285985 DOI: 10.3892/ol.2020.11623] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 04/09/2020] [Indexed: 01/17/2023] Open
Abstract
Circular RNAs (circRNAs) are highly conserved and stable closed-loop non-coding RNAs. They are involved in numerous biological functions, including regulating gene transcription or protein translation by interacting with proteins and regulating expression of microRNAs. The aberrant expression of circRNAs has been reported in many cancers, including gastric cancer. By regulating gene expression, circRNAs are able to affect the proliferation, invasion and metastasis of gastric cancer. The current review focused on the characteristics and biological functions of circRNAs, the carcinogenic potential and the possible implications of circRNAs on the diagnosis and treatment of gastric cancer. In conclusion, circRNAs may serve as potential biomarkers for diagnosis, as well as therapeutic targets.
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Affiliation(s)
- Chun-Mei Yang
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Department of Clinical Laboratory Diagnostics, Beihua University, Jilin City, Jilin 132012, P.R. China
| | - Guang-Lei Qiao
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China
| | - Li-Na Song
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China
| | - Shisan Bao
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China.,Discipline of Pathology, School of Medical Science and Bosch Institute, Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia
| | - Li-Jun Ma
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, P.R. China
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45
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Zhu F, Cheng C, Qin H, Wang H, Yu H. A novel circular RNA circENTPD7 contributes to glioblastoma progression by targeting ROS1. Cancer Cell Int 2020; 20:118. [PMID: 32308563 PMCID: PMC7147020 DOI: 10.1186/s12935-020-01208-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 04/06/2020] [Indexed: 12/24/2022] Open
Abstract
Background Circular RNAs (circRNAs) are identified to play an important role in many human cancers, such as glioblastoma. However, the potential mechanisms underlying the relationship between circRNAs and glioblastoma pathogenesis are still elusive. This study is designed to investigate the role of circRNAs in glioblastoma progression. Methods The present study is designed to investigate the mechanism by which circRNAs involves in glioblastoma pathogenesis. By using circRNAs microarray, we detected the dysregulated circRNAs and identified an up-regulated circRNA, circENTPD7 in glioblastoma tissues. Cell proliferation was measured using a CCK-8 assay. Cell clone formation ability was assessed with a clone formation test. We used the bioinformatics website to predict circRNA–miRNA and miRNA–mRNA interactions. CircRNA–miRNA interaction was confirmed by dual-luciferase reporter assays and RNA–RNA pulldown assay. Results circENTPD7 (hsa_circ_0019421) was upregulated in glioblastoma tissues. Kaplan–Meier survival analysis indicated that glioblastoma patients had a poor overall survival when circENTPD7 expression levels were high. Knockdown of circENTPD7 inhibited the motility and proliferation of glioblastoma cells. Moreover, we demonstrated that circENTPD7 acted as a sponge of miR-101-3p to regulate the expression of ROS1 further promoted the proliferation and motility of glioblastoma cells. Conclusions Taken together, these findings indicate that circRNA circENTPD7 promotes glioblastoma cell proliferation and motility by regulating miR-101-3p/ROS1.
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Affiliation(s)
- Fei Zhu
- Department of Neuro Surgery, The Affiliated Hospital of Yangzhou University, No. 45, Taizhou Road, Yangzhou, Jiangsu China
| | - Cheng Cheng
- Department of Neuro Surgery, The Affiliated Hospital of Yangzhou University, No. 45, Taizhou Road, Yangzhou, Jiangsu China
| | - Hong Qin
- Department of Neuro Surgery, The Affiliated Hospital of Yangzhou University, No. 45, Taizhou Road, Yangzhou, Jiangsu China
| | - Hongsheng Wang
- Department of Neuro Surgery, The Affiliated Hospital of Yangzhou University, No. 45, Taizhou Road, Yangzhou, Jiangsu China
| | - Hailong Yu
- Department of Neuro Surgery, The Affiliated Hospital of Yangzhou University, No. 45, Taizhou Road, Yangzhou, Jiangsu China
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46
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Ding C, Yi X, Wu X, Bu X, Wang D, Wu Z, Zhang G, Gu J, Kang D. Exosome-mediated transfer of circRNA CircNFIX enhances temozolomide resistance in glioma. Cancer Lett 2020; 479:1-12. [PMID: 32194140 DOI: 10.1016/j.canlet.2020.03.002] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 12/14/2022]
Abstract
Development of chemotherapy resistance remains a major obstacle for glioma management. Exosome-mediated transfer of circular RNAs (circRNAs) are being found to have relevance to many human cancers, including glioma. The purpose of this study is to explore the effect and underlying mechanism of exosomal circRNA nuclear factor I X (CircNFIX) on temozolomide (TMZ) chemoresistance in glioma. Our results indicated that exosomal CircNFIX was up-regulated in the serum of TMZ-resistant patients and predicted poor prognosis. Exosomal CircNFIX from TMZ-resistant cells conferred TMZ resistance to recipient sensitive cells through the enhancement of cell migration and invasion and the repression of cell apoptosis under TMZ exposure. CircNFIX directly interacted with miR-132 by binding to miR-132. CircNFIX knockdown enhanced TMZ sensitivity in resistant glioma cells by up-regulating miR-132. Additionally, exosomal CircNFIX promoted tumor growth and its depletion enhanced TMZ sensitivity in glioma cells in vivo. Taken together, our study suggests that exosome-mediated transfer of CircNFIX enhances TMZ resistance in glioma at least partially through sponging miR-132, highlighting a potentially prognostic biomarker and therapeutic target for improving the clinical benefits of TMZ treatment in patients with glioma.
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Affiliation(s)
- Chenyu Ding
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China
| | - Xuehan Yi
- Department of Otolaryngology Head and Neck Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, People's Republic of China
| | - Xiyue Wu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China
| | - Xingyao Bu
- Department of Neurosurgery, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, 450000, Henan, People's Republic of China
| | - Desheng Wang
- Department of Otolaryngology Head and Neck Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, People's Republic of China
| | - Zanyi Wu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China
| | - Gaoqi Zhang
- Department of Neurosurgery, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, 450000, Henan, People's Republic of China
| | - Jianjun Gu
- Department of Neurosurgery, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, 450000, Henan, People's Republic of China.
| | - Dezhi Kang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China.
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47
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Geng X, Lin X, Zhang Y, Li Q, Guo Y, Fang C, Wang H. Exosomal circular RNA sorting mechanisms and their function in promoting or inhibiting cancer. Oncol Lett 2020; 19:3369-3380. [PMID: 32269609 PMCID: PMC7114721 DOI: 10.3892/ol.2020.11449] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 02/13/2020] [Indexed: 02/06/2023] Open
Abstract
Exosomes are nanoscale phospholipid bilayer vesicles that can be artificially engineered into vectors for the treatment of cancer. Circular RNA (circRNA), a type of non-coding RNA, has crucial regulatory functions in various aspects of cancer, such as tumorigenesis, apoptosis, proliferation, invasion, metastasis and chemo- and radiotherapeutic resistance, as well as in cancer prognosis. Notably, the exosomal transfer of circRNAs may function to both promote and inhibit cancer. Numerous studies have addressed the importance of circRNAs in cancer and non-coding RNAs (such as microRNAs and long non-coding RNAs) in exosomes. However, little research has focussed on a class of RNAs called exosomal circRNAs. The present review discusses current studies regarding exosomal circRNAs, including their biogenesis and biological functions, their abundance in exosomes and possible sorting mechanisms and their potential roles in both promoting and inhibiting cancer. It is predicted that in the next five years there will be increasing research exploring the functional mechanisms of exosomal circRNA in various diseases, in particular their roles in cancer genesis and progression.
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Affiliation(s)
- Xiuchao Geng
- Faculty of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050091, P.R. China
| | - Xiaomeng Lin
- Department of Breast Surgery, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Yuhao Zhang
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Qiang Li
- Faculty of Acupuncture-Moxibustion and Tuina, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Yajing Guo
- Scientific Research Center, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050091, P.R. China
| | - Chuan Fang
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Hong Wang
- Faculty of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050091, P.R. China
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48
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Sun J, Li B, Shu C, Ma Q, Wang J. Functions and clinical significance of circular RNAs in glioma. Mol Cancer 2020; 19:34. [PMID: 32061256 PMCID: PMC7023692 DOI: 10.1186/s12943-019-1121-0] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 12/23/2019] [Indexed: 12/14/2022] Open
Abstract
CircRNAs are a class of single-stranded RNA molecules with a covalently closed loop structure and have been characterized by high stability, abundance, conservation, and display tissue/developmental stage-specific expression, furthermore, based on the abundance in distinct body fluids or exosomes, circRNAs present novel biomarkers and targets for the diagnosis and prognosis of cancers. Recently, the regulatory mechanisms of biogenesis and molecular functions, including miRNAs and RBPs sponge, translation as well as transcriptional and splicing regulation, have been gradually uncovered, although various aspects remained to be elucidated in combination with deep-sequence and bioinformatics. Accumulating studies have indicated that circRNAs are more enriched in neuronal tissues partly due to the abundance of specific genes promoting circularization, suggesting dysregulation of circRNAs is closely related to diseases of the nervous system, including glioma. In this review, we elaborate on the biogenesis, functions, databases as well as novel advances especially involved in the molecular pathways, highlight its great value as diagnostic or therapeutic targets in glioma.
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Affiliation(s)
- Jikui Sun
- School of Medicine, Nankai University, 94 Weijin Road, Nankai District, Tianjin, 300071, People's Republic of China.,Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin, 300350, People's Republic of China
| | - Banban Li
- Qilu Hospital, Shandong University, 107 Cultural West Road, Jinan, 250012, People's Republic of China.,Department of Hematology, Taian Central Hospital, 29 Longtan Road, Taian, 271000, People's Republic of China
| | - Chang Shu
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin, 300350, People's Republic of China
| | - Quanfeng Ma
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin, 300350, People's Republic of China
| | - Jinhuan Wang
- School of Medicine, Nankai University, 94 Weijin Road, Nankai District, Tianjin, 300071, People's Republic of China. .,Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin, 300350, People's Republic of China.
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49
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Zhang Q, Wang W, Zhou Q, Chen C, Yuan W, Liu J, Li X, Sun Z. Roles of circRNAs in the tumour microenvironment. Mol Cancer 2020; 19:14. [PMID: 31973726 PMCID: PMC6977266 DOI: 10.1186/s12943-019-1125-9] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 12/26/2019] [Indexed: 02/06/2023] Open
Abstract
The tumour microenvironment (TME) constitutes the area surrounding the tumour during its development and has been demonstrated to play roles in cancer-related diseases through crosstalk with tumour cells. Circular RNAs (circRNAs) are a subpopulation of endogenous noncoding RNAs (ncRNAs) that are ubiquitously expressed in eukaryotes and have multiple biological functions in the regulation of cancer onset and progression. An increasing number of studies have shown that circRNAs participate in the multifaceted biological regulation of the TME. However, details on the mechanisms involved have remained elusive until now. In this review, we analyse the effects of circRNAs on the TME from various perspectives, including immune surveillance, angiogenesis, hypoxia, matrix remodelling, exo-circRNAs and chemoradiation resistance. Currently, the enormous potential for circRNA use in targeted therapy and as noninvasive biomarkers have drawn our attention. We emphasize the prospect of targeting circRNAs as an essential strategy to regulate TME, overcome cancer resistance and improve therapeutic outcomes.
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Affiliation(s)
- Qiuge Zhang
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.,Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Weiwei Wang
- Department of Pathology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, China
| | - Quanbo Zhou
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Chen Chen
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.,Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Weitang Yuan
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jinbo Liu
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Xiaoli Li
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Zhenqiang Sun
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China. .,Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450052, China.
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50
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Li H, Shen S, Ruan X, Liu X, Zheng J, Liu Y, Yang C, Wang D, Liu L, Ma J, Ma T, Wang P, Cai H, Li Z, Zhao L, Xue Y. Biosynthetic CircRNA_001160 induced by PTBP1 regulates the permeability of BTB via the CircRNA_001160/miR-195-5p/ETV1 axis. Cell Death Dis 2019; 10:960. [PMID: 31862871 PMCID: PMC6925104 DOI: 10.1038/s41419-019-2191-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 11/30/2019] [Accepted: 12/02/2019] [Indexed: 02/07/2023]
Abstract
The presence of the blood-tumor barrier (BTB) severely impedes the transport of anti-neoplasm drugs to the central nervous system, affecting the therapeutic effects of glioma. Glioma endothelial cells (GECs) are the main structural basis of the BTB. Circular RNA is considered to be an important regulator of endothelial cell growth. In this study, we found that polypyrimidine tract binding protein 1 (PTBP1) and circRNA_001160 were remarkably upregulated in GECs. Knockdown of PTBP1 or circRNA_001160 significantly increased BTB permeability, respectively. As a molecular sponge of miR-195-5p, circRNA_001160 attenuated its negative regulation of the target gene ETV1 by adsorbing miR-195-5p. In addition, ETV1 was overexpression in GECs. ETV1 bounded to the promoter regions of tight junction-related proteins and increased the promoter activities, which significantly promoted the expression levels of tight junction-related proteins. The present study showed that the combined application of PTBP1, circRNA_001160, and miR-195-5p with the anti-tumor drug Dox effectively promoted Dox through BTB and extremely induced the apoptosis of glioma cells. Our results demonstrated that the PTBP1/circRNA_001160/miR-195-5p/ETV1 axis was critical in the regulation of BTB permeability and provided new targets for the treatment of glioma.
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Affiliation(s)
- Hua Li
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Shuyuan Shen
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Xuelei Ruan
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, People's Republic of China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, People's Republic of China
| | - Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, People's Republic of China
| | - Di Wang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, People's Republic of China
| | - Libo Liu
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Teng Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, People's Republic of China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, 110004, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, 110004, People's Republic of China
| | - Lini Zhao
- Department of pharmacology, Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China. .,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, 110122, People's Republic of China. .,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China.
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