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Hejazian SM, Rahbar Saadat Y, Hosseiniyan Khatibi SM, Farnood F, Farzamikia N, Hejazian SS, Batoumchi S, Shoja MM, Zununi Vahed S, Ardalan M. Circular RNAs as novel biomarkers in glomerular diseases. Arch Physiol Biochem 2024; 130:568-580. [PMID: 37194131 DOI: 10.1080/13813455.2023.2212328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 05/03/2023] [Accepted: 05/03/2023] [Indexed: 05/18/2023]
Abstract
Circular RNAs (circRNAs) regulate gene expression and biological procedures by controlling target genes or downstream pathways by sponging their related miRNA (s). Three types of circRNAs have been identified; exonic circRNAs (ecircRNAs), intronic RNAs (ciRNAs), and exon-intron circRNAs (ElciRNAs). It is clarified that altered levels of circRNAs have dynamic pathological and physiological functions in kidney diseases. Evidence suggests that circRNAs can be considered novel diagnostic biomarkers and therapeutic targets for renal diseases. Glomerulonephritis (GN) is a general term used to refer to a wide range of glomerular diseases. GN is an important cause of chronic kidney diseases. Here, we review the biogenesis of circRNAs, and their molecular and physiological functions in the kidney. Moreover, the dysregulated expression of circRNAs and their biological functions are discussed in primary and secondary glomerulonephritis. Moreover, diagnostic and therapeutic values of circRNAs in distinguishing or treating different types of GN are highlighted.
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Affiliation(s)
| | | | | | - Farahnoosh Farnood
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Negin Farzamikia
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyyed Sina Hejazian
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Batoumchi
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammadali M Shoja
- College of Allopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
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2
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Luo X, Shi J, Wang S, Jin X. The role of circular RNA targeting IGF2BPs in cancer-a potential target for cancer therapy. J Mol Med (Berl) 2024:10.1007/s00109-024-02488-8. [PMID: 39287635 DOI: 10.1007/s00109-024-02488-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 07/01/2024] [Accepted: 09/10/2024] [Indexed: 09/19/2024]
Abstract
Circular RNAs (circRNAs) are an interesting class of conserved single-stranded RNA molecules derived from exon or intron sequences produced by the reverse splicing of precursor mRNA. CircRNAs play important roles as microRNA sponges, gene splicing and transcriptional regulators, RNA-binding protein sponges, and protein/peptide translation factors. Abnormal functions of circRNAs and RBPs in tumor progression have been widely reported. Insulin-like growth factor-2 mRNA-binding proteins (IGF2BPs) are a highly conserved family of RBPs identified in humans that function as post-transcriptional fine-tuners of target transcripts. Emerging evidence suggests that IGF2BPs regulate the processing and metabolism of RNA, including its stability, translation, and localization, and participate in a variety of cellular functions and pathophysiology. In this review, we have summarized the roles and molecular mechanisms of circRNAs and IGF2BPs in cancer development and progression. In addition, we briefly introduce the role of other RNAs and IGF2BPs in cancer, discuss the current clinical applications and challenges faced by circRNAs and IGF2BPs, and propose future directions for this promising research field.
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Affiliation(s)
- Xia Luo
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Jiaxin Shi
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Siyuan Wang
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China
| | - Xiaofeng Jin
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, 315211, China.
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3
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Kundu I, Varshney S, Karnati S, Naidu S. The multifaceted roles of circular RNAs in cancer hallmarks: From mechanisms to clinical implications. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102286. [PMID: 39188305 PMCID: PMC11345389 DOI: 10.1016/j.omtn.2024.102286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Circular RNAs (circRNAs) represent a distinct class of covalently closed RNA species lacking conventional 5' to 3' polarity. Derived predominantly from pre-mRNA transcripts of protein-coding genes, circRNAs arise through back-splicing events of exon-exon or exon-intron junctions. They exhibit tissue- and cell-specific expression patterns and play crucial roles in regulating fundamental cellular processes such as cell cycle dynamics, proliferation, apoptosis, and differentiation. CircRNAs modulate gene expression through a plethora of mechanisms at epigenetic, transcriptional, and post-transcriptional levels, and some can even undergo translation into functional proteins. Recently, aberrant expression of circRNAs has emerged as a significant molecular aberration within the intricate regulatory networks governing hallmarks of cancer. The tumor-specific expression patterns and remarkable stability of circRNAs have profound implications for cancer diagnosis, prognosis, and therapy. This review comprehensively explores the multifaceted roles of circRNAs across cancer hallmarks in various tumor types, underscoring their growing significance in cancer diagnosis and therapeutic interventions. It also details strategies for leveraging circRNA-based therapies and discusses the challenges in using circRNAs for cancer management, emphasizing the need for further research to overcome these obstacles.
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Affiliation(s)
- Indira Kundu
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
| | - Shivani Varshney
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
| | - Srikanth Karnati
- Institute of Anatomy and Cell Biology, University of Würzburg, 97070 Würzburg, Germany
- Comprehensive Heart Failure Center, University Hospital Würzburg, Würzburg, Germany
| | - Srivatsava Naidu
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
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4
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Saadh MJ, Ehymayed HM, Alazzawi TS, Fahdil AA, Athab ZH, Yarmukhamedov B, Al-Anbari HHA, Shallal MM, Alsaikhan F, Farhood B. Role of circRNAs in regulating cell death in cancer: a comprehensive review. Cell Biochem Biophys 2024:10.1007/s12013-024-01492-6. [PMID: 39243349 DOI: 10.1007/s12013-024-01492-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2024] [Indexed: 09/09/2024]
Abstract
Despite multiple diagnostic and therapeutic advances, including surgery, radiation therapy, and chemotherapy, cancer preserved its spot as a global health concern. Prompt cancer diagnosis, treatment, and prognosis depend on the discovery of new biomarkers and therapeutic strategies. Circular RNAs (circRNAs) are considered as a stable, conserved, abundant, and varied group of RNA molecules that perform multiple roles such as gene regulation. There is evidence that circRNAs interact with RNA-binding proteins, especially capturing miRNAs. An extensive amount of research has presented the substantial contribution of circRNAs in various types of cancer. To fully understand the linkage between circRNAs and cancer growth as a consequence of various cell death processes, including autophagy, ferroptosis, and apoptosis, more research is necessary. The expression of circRNAs could be controlled to limit the occurrence and growth of cancer, providing a more encouraging method of cancer treatment. Consequently, it is critical to understand how circRNAs affect various forms of cancer cell death and evaluate whether circRNAs could be used as targets to induce tumor death and increase the efficacy of chemotherapy. The current study aims to review and comprehend the effects that circular RNAs exert on cell apoptosis, autophagy, and ferroptosis in cancer to investigate potential cancer treatment targets.
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Affiliation(s)
- Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman, 11831, Jordan
| | | | - Tuqa S Alazzawi
- College of dentist, National University of Science and Technology, Dhi Qar, Iraq
| | - Ali A Fahdil
- Medical technical college, Al-Farahidi University, Baghdad, Iraq
| | - Zainab H Athab
- Department of Pharmacy, Al-Zahrawi University College, Karbala, Iraq
| | - Bekhzod Yarmukhamedov
- Department of Surgical Dentistry and Dental Implantology, Tashkent State Dental Institute, Tashkent, Uzbekistan
- Department of Scientific affairs, Samarkand State Medical University, Samarkand, Uzbekistan
| | | | | | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia.
- School of Pharmacy, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia.
| | - Bagher Farhood
- Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Siedlecki E, Remiszewski P, Stec R. The Role of circHIPK3 in Tumorigenesis and Its Potential as a Biomarker in Lung Cancer. Cells 2024; 13:1483. [PMID: 39273053 PMCID: PMC11393915 DOI: 10.3390/cells13171483] [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: 07/29/2024] [Revised: 08/27/2024] [Accepted: 08/31/2024] [Indexed: 09/15/2024] Open
Abstract
Lung cancer treatment and detection can be improved by the identification of new biomarkers. Novel approaches in investigating circular RNAs (circRNAs) as biomarkers have yielded promising results. A circRNA molecule circHIPK3 was found to be widely expressed in non-small-cell lung cancer (NSCLC) cells, where it plays a crucial role in lung cancer tumorigenesis. CircHIPK3 promotes lung cancer progression by sponging oncosuppressive miRNAs such as miR-124, miR-381-3p, miR-149, and miR-107, which results in increased cell proliferation, migration, and resistance to therapies. Inhibiting circHIPK3 has been demonstrated to suppress tumour growth and induce apoptosis, which suggests its potential use in the development of new lung cancer treatment strategies targeting circHIPK3-related pathways. As a biomarker, circHIPK3 shows promise for early detection and monitoring of lung cancer. CircHIPK3 increased expression levels in lung cancer cells, and its potential link to metastasis risk highlights its clinical relevance. Given the promising preliminary findings, more clinical trials are needed to validate circHIPK3 efficacy as a biomarker. Moreover, future research should determine if the mechanisms discovered in NSCLC apply to small cell lung cancer (SCLC) to investigate circHIPK3-targeted therapies for SCLC.
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Affiliation(s)
- Eryk Siedlecki
- Department of Oncology, Medical University of Warsaw, 02-097 Warsaw, Poland
- Faculty of Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Piotr Remiszewski
- Department of Oncology, Medical University of Warsaw, 02-097 Warsaw, Poland
- Faculty of Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Rafał Stec
- Department of Oncology, Medical University of Warsaw, 02-097 Warsaw, Poland
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Wang Y, Zhang J, Yang Y, Liu Z, Sun S, Li R, Zhu H, Li T, Zheng J, Li J, Ma L. Circular RNAs in human diseases. MedComm (Beijing) 2024; 5:e699. [PMID: 39239069 PMCID: PMC11374765 DOI: 10.1002/mco2.699] [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: 06/20/2023] [Revised: 07/25/2024] [Accepted: 07/30/2024] [Indexed: 09/07/2024] Open
Abstract
Circular RNAs (circRNAs) are a unique class of RNA molecules formed through back-splicing rather than linear splicing. As an emerging field in molecular biology, circRNAs have garnered significant attention due to their distinct structure and potential functional implications. A comprehensive understanding of circRNAs' functions and potential clinical applications remains elusive despite accumulating evidence of their involvement in disease pathogenesis. Recent research highlights their significant roles in various human diseases, but comprehensive reviews on their functions and applications remain scarce. This review provides an in-depth examination of circRNAs, focusing first on their involvement in non-neoplastic diseases such as respiratory, endocrine, metabolic, musculoskeletal, cardiovascular, and renal disorders. We then explore their roles in tumors, with particular emphasis on exosomal circular RNAs, which are crucial for cancer initiation, progression, and resistance to treatment. By detailing their biogenesis, functions, and impact on disease mechanisms, this review underscores the potential of circRNAs as diagnostic biomarkers and therapeutic targets. The review not only enhances our understanding of circRNAs' roles in specific diseases and tumor types but also highlights their potential as novel diagnostic and therapeutic tools, thereby paving the way for future clinical investigations and potential therapeutic interventions.
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Affiliation(s)
- Yuanyong Wang
- Department of Thoracic Surgery Tangdu Hospital Air Force Medical University Xi'an China
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) The First Department of Thoracic Surgery Peking University Cancer Hospital and Institute Peking University School of Oncology Beijing China
| | - Jin Zhang
- Department of Traditional Chinese Medicine Tangdu Hospital Air Force Medical University Xi'an China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine Tumor Diagnosis and Treatment in Shaanxi Province Xi'an China
| | - Yuchen Yang
- Department of Traditional Chinese Medicine Tangdu Hospital Air Force Medical University Xi'an China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine Tumor Diagnosis and Treatment in Shaanxi Province Xi'an China
| | - Zhuofeng Liu
- Department of Traditional Chinese Medicine The Third Affiliated Hospital of Xi'an Medical University Xi'an China
| | - Sijia Sun
- Department of Traditional Chinese Medicine Tangdu Hospital Air Force Medical University Xi'an China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine Tumor Diagnosis and Treatment in Shaanxi Province Xi'an China
| | - Rui Li
- Department of Epidemiology School of Public Health Air Force Medical University Xi'an China
| | - Hui Zhu
- Department of Anatomy Medical College of Yan'an University Yan'an China
- Institute of Medical Research Northwestern Polytechnical University Xi'an China
| | - Tian Li
- School of Basic Medicine Fourth Military Medical University Xi'an China
| | - Jin Zheng
- Department of Traditional Chinese Medicine Tangdu Hospital Air Force Medical University Xi'an China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine Tumor Diagnosis and Treatment in Shaanxi Province Xi'an China
| | - Jie Li
- Department of Endocrine Xijing 986 Hospital Air Force Medical University Xi'an China
| | - Litian Ma
- Department of Thoracic Surgery Tangdu Hospital Air Force Medical University Xi'an China
- Department of Traditional Chinese Medicine Tangdu Hospital Air Force Medical University Xi'an China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine Tumor Diagnosis and Treatment in Shaanxi Province Xi'an China
- Department of Gastroenterology Tangdu Hospital Air Force Medical University Xi'an China
- School of Medicine Northwest University Xi'an China
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Fei D, Wang F, Wang Y, Chen J, Chen S, Fan L, Yang L, Ren Q, Duangmano S, Du F, Liu H, Zhou J, Sheng J, Zhao Y, Wu X, Li M, Xiao Z, Zhang Z, Jiang X. Circular RNA ACVR2A promotes the progression of hepatocellular carcinoma through mir-511-5p targeting PI3K-Akt signaling pathway. Mol Cancer 2024; 23:159. [PMID: 39107843 PMCID: PMC11302160 DOI: 10.1186/s12943-024-02074-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 07/26/2024] [Indexed: 08/10/2024] Open
Abstract
Circular RNA (circRNA) is thought to mediate the occurrence and development of human cancer and usually acts as a tiny RNA (miRNA) sponge to regulate downstream gene expression. However, it is not clear whether and how circACVR2A (hsa_circ_0001073) is involved in the progression of HCC. The purpose of this study is to clarify the potential role and molecular mechanism of circACVR2A in regulating the progression of hepatocellular carcinoma cells (HCC). The abundance of related proteins in circACVR2A, microRNA (miR511-5p) and PI3K-Akt signaling pathway was determined by quantitative reverse transcriptase polymerase chain reaction (RT-PCR) or Western blotting. Cell viability, invasion and apoptosis were analyzed by CCK-8, Transwell analysis and Tunel staining, respectively. The interaction between circACVR2A and microRNA was evaluated by double luciferase reporter gene assay. The results showed that circACVR2A was highly expressed in hepatocellular carcinoma cell lines. Our in vivo and in vitro data showed that circACVR2A promoted the proliferation, migration and invasion of HCC. In terms of mechanism, we found that circACVR2A can directly interact with miR511-5p and act as a miRNA sponge to regulate the expression of related proteins in PI3K-Akt signaling pathway.In HCC, circACVR2A can mediate miR-511-5p/mRNA network to activate PI3K signal pathway. This shows that the molecular regulatory network with circACVR2A as the core is a new potential target for diagnosis and treatment of hepatocellular carcinoma.
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Affiliation(s)
- Du Fei
- Department of Anesthesiology, Luzhou People's Hospital, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Fang Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Yaohui Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Ji Chen
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Shendong Chen
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Lianpeng Fan
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Luhan Yang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Qingyi Ren
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Suwit Duangmano
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Fukuan Du
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Hao Liu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Jie Zhou
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Jing Sheng
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Yueshui Zhao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Xu Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Mingxing Li
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Zhangang Xiao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China
| | - Zhuo Zhang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, PR China.
| | - Xian Jiang
- Department of Anesthesiology, Luzhou People's Hospital, Southwest Medical University, Luzhou, 646000, Sichuan, PR China.
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8
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Lu P, Fan J, Li B, Wang X, Song M. A novel protein encoded by circLARP1B promotes the proliferation and migration of vascular smooth muscle cells by suppressing cAMP signaling. Atherosclerosis 2024; 395:117575. [PMID: 38851155 DOI: 10.1016/j.atherosclerosis.2024.117575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 06/10/2024]
Abstract
BACKGROUND AND AIMS Circular RNA (circRNA) is closely related to atherosclerosis (AS) incidence and progression, but its regulatory mechanism in AS needs further elucidation. AS development is significantly influenced by abnormal vascular smooth muscle cells (VSMCs) growth and migration. This study explored the potential protein role of circLARP1B in VSMC proliferation and migration. METHODS We performed whole-transcriptome sequencing in human normal arterial intima and advanced atherosclerotic plaques to screen for differentially expressed circRNAs. The sequencing results were combined with database analysis to screen for circRNAs with coding ability. Real-time quantitative polymerase chain reaction was utilized to assess circLARP1B expression levels in atherosclerotic plaque tissues and cells. circLARP1B-243aa function and pathway in VSMCs growth and migration were studied by scratch, transwell, 5-ethynyl-2'-deoxyuridine, cell counting kit-8, and Western blot experiments. RESULTS We found that circLARP1B was downregulated in atherosclerotic plaque tissue and promoted the proliferation and migration of VSMCs. circLARP1B encodes a novel protein with a length of 243 amino acids. Through functional experiments, we confirmed the role of circLARP1B-243aa in enhancing VSMCs migration and proliferation. Mechanistically, circLARP1B-243aa promotes VSMCs migration and growth by upregulating phosphodiesterase 4C to inhibit the cyclic adenosine monophosphate signaling pathway. CONCLUSIONS Our results suggested that circLARP1B could promote VSMCs growth and migration through the encoded protein circLARP1B-243aa. Therefore, it could be a treatment target and biomarker for AS.
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MESH Headings
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Cell Proliferation
- Cell Movement
- Humans
- RNA, Circular/metabolism
- RNA, Circular/genetics
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Signal Transduction
- Cyclic AMP/metabolism
- SS-B Antigen
- Cells, Cultured
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Atherosclerosis/genetics
- Plaque, Atherosclerotic
- Male
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Affiliation(s)
- Peng Lu
- Department of Cardiovascular Surgery, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, Jiangsu, 225300, PR China; Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210000, PR China
| | - Jidan Fan
- Department of Cardiovascular Surgery, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, Jiangsu, 225300, PR China
| | - Ben Li
- Department of Cardiovascular Surgery, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, Jiangsu, 225300, PR China; Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210000, PR China.
| | - Xiaowei Wang
- Department of Cardiovascular Surgery, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, Jiangsu, 225300, PR China.
| | - Meijuan Song
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210000, PR China.
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9
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Guo M, Li X, Tao W, Teng F, Li C. Vibrio splendidus infection promotes circRNA-FGL1-regulated coelomocyte apoptosis via competitive binding to Myc with the deubiquitinase OTUB1 in Apostichopus japonicus. PLoS Pathog 2024; 20:e1012463. [PMID: 39146353 PMCID: PMC11349225 DOI: 10.1371/journal.ppat.1012463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 08/27/2024] [Accepted: 07/30/2024] [Indexed: 08/17/2024] Open
Abstract
Circular RNAs (circRNAs) are involved in various physiological and pathological processes in both vertebrates and invertebrates. However, most studies on circRNAs have focused on their roles as endogenous competitive RNAs. Here, we report a novel function of circRNA derived from the Fibrinogen-like protein 1 gene (circ-FGL1) that inhibits coelomocyte apoptosis via competing with the deubiquitinase AjOTUB1 to bind AjMyc in Apostichopus japonicus during Vibrio splendidus infection. The results showed that circ-FGL1 is significantly downregulated in coelomocytes of V. splendidus-induced A. japonicus and negatively regulates coelomocyte apoptosis through the AjBax-AjCyt c pathway. Mechanistically, the deubiquitinase AjOTUB1 and circ-FGL1 could interact with the transcription factor protein AjMyc in the same region with circ-FGL1/AjMyc having greater affinity. Under normal conditions, high levels of circ-FGL1 bind directly to AjMyc, inhibiting the deubiquitylation of AjMyc by AjOTUB1 and leading to the degradation of AjMyc. After V. splendidus infection, AjMyc disassociates from the depressed expression of circ-FGL1, promoting its deubiquitylation by binding to the induced deubiquitinase AjOTUB1 to inhibit its degradation. AjMyc is then transferred to the nucleus and promotes the transcription of AjCyt c and AjBax to induce coelomocyte apoptosis. The new finding will expand our present outstanding on the functional role of circRNAs and suggest new therapeutic targets for the treatment of echinoderms during bacterial invasion.
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Affiliation(s)
- Ming Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Xin Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Wenjun Tao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Fei Teng
- College of Mathematics and Computer, Jilin Normal University, Siping, Jilin, China
| | - Chenghua Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Marine Sciences, Ningbo University, Ningbo, China
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10
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Zhang D, Ma Y, Naz M, Ahmed N, Zhang L, Zhou JJ, Yang D, Chen Z. Advances in CircRNAs in the Past Decade: Review of CircRNAs Biogenesis, Regulatory Mechanisms, and Functions in Plants. Genes (Basel) 2024; 15:958. [PMID: 39062737 PMCID: PMC11276256 DOI: 10.3390/genes15070958] [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: 06/20/2024] [Revised: 07/12/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Circular RNA (circRNA) is a type of non-coding RNA with multiple biological functions. Whole circRNA genomes in plants have been identified, and circRNAs have been demonstrated to be widely present and highly expressed in various plant tissues and organs. CircRNAs are highly stable and conserved in plants, and exhibit tissue specificity and developmental stage specificity. CircRNAs often interact with other biomolecules, such as miRNAs and proteins, thereby regulating gene expression, interfering with gene function, and affecting plant growth and development or response to environmental stress. CircRNAs are less studied in plants than in animals, and their regulatory mechanisms of biogenesis and molecular functions are not fully understood. A variety of circRNAs in plants are involved in regulating growth and development and responding to environmental stress. This review focuses on the biogenesis and regulatory mechanisms of circRNAs, as well as their biological functions during growth, development, and stress responses in plants, including a discussion of plant circRNA research prospects. Understanding the generation and regulatory mechanisms of circRNAs is a challenging but important topic in the field of circRNAs in plants, as it can provide insights into plant life activities and their response mechanisms to biotic or abiotic stresses as well as new strategies for plant molecular breeding and pest control.
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Affiliation(s)
- Dongqin Zhang
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Yue Ma
- College of Agriculture, Guizhou University, Guiyang 550025, China;
| | - Misbah Naz
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Nazeer Ahmed
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Libo Zhang
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Jing-Jiang Zhou
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
- Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge CB2 0XY, UK
| | - Ding Yang
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
| | - Zhuo Chen
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (D.Z.); (M.N.); (N.A.); (L.Z.); (J.-J.Z.); (D.Y.)
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11
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Firoozi Z, Shahi A, Mohammadisoleimani E, Afzali S, Mansoori B, Bahmanyar M, Mohaghegh P, Dastsooz H, Pezeshki B, Nikfar G, Kouhpayeh SA, Mansoori Y. CircRNA-associated ceRNA networks (circCeNETs) in chronic obstructive pulmonary disease (COPD). Life Sci 2024; 349:122715. [PMID: 38740326 DOI: 10.1016/j.lfs.2024.122715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 04/29/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
Chronic obstructive pulmonary disease (COPD), a chronic airway disorder, which is mostly brought on by cigarette smoke extract (CSE), is a leading cause of death which has a high frequency. In COPD patients, smoking cigarette could also trigger the epithelial-mesenchymal transition (EMT) of airway remodeling. One of the most significant elements of environmental contaminants that is linked to pulmonary damage is fine particulate matter (PM2.5). However, the basic processes of lung injury brought on by environmental contaminants and cigarette smoke are poorly understood, particularly the molecular pathways involved in inflammation. For the clinical management of COPD, investigating the molecular process and identifying workable biomarkers will be important. According to newly available research, circular RNAs (circRNAs) are aberrantly produced and serve as important regulators in the pathological processes of COPD. This class of non-coding RNAs (ncRNAs) functions as microRNA (miRNA) sponges to control the levels of gene expression, changing cellular phenotypes and advancing disease. These findings led us to concentrate our attention in this review on new studies about the regulatory mechanism and potential roles of circRNA-associated ceRNA networks (circCeNETs) in COPD.
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Affiliation(s)
- Zahra Firoozi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Abbas Shahi
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran; Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Mohammadisoleimani
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran; Department of Medical Microbiology (Bacteriology & Virology), Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Shima Afzali
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Behnam Mansoori
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Maryam Bahmanyar
- Pediatrics Department, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Poopak Mohaghegh
- Pediatrics Department, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Hassan Dastsooz
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy; Candiolo, C/o IRCCS, IIGM-Italian Institute for Genomic Medicine, Turin, Italy; Candiolo Cancer (IT), FPO-IRCCS, Candiolo Cancer Institute, Turin, Italy
| | - Babak Pezeshki
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Ghasem Nikfar
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Seyed Amin Kouhpayeh
- Department of Pharmacology, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Yaser Mansoori
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran; Department of Medical Genetics, Fasa University of Medical Sciences, Fasa, Iran.
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12
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Lun J, Zhang Y, Yu M, Zhai W, Zhu L, Liu H, Guo J, Zhang G, Qiu W, Fang J. Circular RNA circHIPK2 inhibits colon cancer cells through miR-373-3p/RGMA axis. Cancer Lett 2024; 593:216957. [PMID: 38762192 DOI: 10.1016/j.canlet.2024.216957] [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: 03/25/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/20/2024]
Abstract
Circular RNAs (circRNAs) have been implicated in cancer development. However, their regulation, function, and underlying mechanisms of action remain unclear. We found that circHIPK2 was downregulated in colon cancer, and low expression levels of circHIPK2 were associated with high tumor grade and poor patient survival. The expression of circHIPK2 was observed to be regulated by the transcription factor HOXD10, which was downregulated in colon cancer. Consequently, low circHIPK2 expression promoted colon cancer cell proliferation, migration, and invasion in vitro and tumor growth and metastasis in vivo. Mechanistically, circHIPK2 sponges miR-373-3p to upregulate the expression of the tumor suppressor RGMA, leading to the activation of BMP/Smad signaling and, ultimately, the inhibition of colon cancer cells, indicating that circHIPK2 inhibits colon cancer cells through the miR-373-3p/RGMA/BMP pathway. These findings revealed a previously unknown regulation, function, and underlying mechanism of circHIPK2 in cancer cells. Hence, circHIPK2 may have a prognostic value and serve as a potential target for colon cancer treatment.
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Affiliation(s)
- Jie Lun
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China; School of Pharmacy, Qingdao University, Qingdao, 266071, China
| | - Yuying Zhang
- School of Public Health, Qingdao University, Qingdao, 266071, China
| | - Mengchao Yu
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, 266071, China
| | - Wenxin Zhai
- Department of Medical Oncology, Changzheng Hospital, Naval Medical University, 64 Hetian Road, Shanghai, 200072, China
| | - Lei Zhu
- Medical College, Qingdao Binhai University, Qingdao, 266071, China
| | - Huizi Liu
- Department of Rehabilitation Medicine, General Hospital of Central Theater Command, Wuhan, 430070, China
| | - Jing Guo
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China
| | - Gang Zhang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China
| | - Wensheng Qiu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China.
| | - Jing Fang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao University, Qingdao, 266071, China.
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13
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Bian B, Chen H, Teng T, Huang J, Yu X. Circ_0104652 Promotes the Proliferation and Migration of ox-LDL-Stimulated Vascular Smooth Muscle Cells via Stabilizing ADAMTS7 and HMGB1. Am J Hypertens 2024; 37:465-476. [PMID: 38536049 DOI: 10.1093/ajh/hpae026] [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: 05/07/2023] [Revised: 01/14/2024] [Accepted: 03/06/2024] [Indexed: 06/15/2024] Open
Abstract
BACKGROUND Atherosclerosis (AS) stands as the primary contributor to cardiovascular disease, a pervasive global health concern. Extensive research has underscored the pivotal role of circular RNAs (circRNAs) in cardiovascular disease development. However, the specific functions of numerous circRNAs in AS remain poorly understood. METHODS Quantitative real-time PCR analysis revealed a significant upregulation of circ_0104652 in oxidized low-density lipoprotein (ox-LDL)-induced vascular smooth muscle cells (VSMCs). Loss-of-function experiments were subsequently employed to assess the impact of circ_0104652 on ox-LDL-induced VSMCs. RESULTS Silencing circ_0104652 was found to impede the proliferation and migration while promoting the apoptosis of ox-LDL-stimulated VSMCs. Mechanistic assays unveiled that circ_0104652 stabilized ADAM metallopeptidase with thrombospondin type 1 motif 7 (ADAMTS7) and high mobility group box 1 (HMGB1) by recruiting eukaryotic translation initiation factor 4A3 (EIF4A3) protein. Rescue assays further confirmed that circ_0104652 exerted its influence on ox-LDL-induced VSMC proliferation through modulation of ADAMTS7 and HMGB1. CONCLUSIONS This study elucidates the role of the circ_0104652/EIF4A3/ADAMTS7/HMGB1 axis in ox-LDL-stimulated VSMCs, providing valuable insights into the intricate mechanisms involved.
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MESH Headings
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/pathology
- Lipoproteins, LDL/pharmacology
- Lipoproteins, LDL/metabolism
- Cell Proliferation/drug effects
- RNA, Circular/metabolism
- RNA, Circular/genetics
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/pathology
- Cell Movement/drug effects
- Humans
- HMGB1 Protein/metabolism
- HMGB1 Protein/genetics
- ADAMTS7 Protein/metabolism
- ADAMTS7 Protein/genetics
- Atherosclerosis/pathology
- Atherosclerosis/metabolism
- Atherosclerosis/genetics
- Cells, Cultured
- Signal Transduction
- Apoptosis/drug effects
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Affiliation(s)
- Bo Bian
- General Practice Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Heye Chen
- Department of Endocrinology and Metabolism, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Tianming Teng
- General Practice Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Jinyong Huang
- General Practice Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Xuefang Yu
- General Practice Department, Tianjin Medical University General Hospital, Tianjin, China
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14
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Zhu K, Gou F, Zhao Z, Xu K, Song J, Jiang H, Zhang F, Yang Y, Li J. Circ_0005615 enhances multiple myeloma progression through interaction with EIF4A3 to regulate MAP3K4 m6A modification mediated by ALKBH5. Leuk Res 2024; 141:107451. [PMID: 38663164 DOI: 10.1016/j.leukres.2024.107451] [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: 10/16/2023] [Revised: 01/06/2024] [Accepted: 01/28/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Circular RNAs (circRNAs) are associated with development and progression of multiple myeloma (MM). However, the role and mechanism of circ_0005615 in MM have not been elucidated. METHODS Circ_0005615 was determined by GEO database. quantitative RT-PCR was performed to confirm the expression of circ_0005615 in peripheral blood of MM patients and MM cells. The roles of circ_0005615 in MM were analyzed using CCK8, transwell invasion, cell apoptosis and tumor xenograft experiments. Bioinformatics tools, RIP and RNA pull down assays were conducted to explore the downstream of circ_0005615. Furthermore, the mechanism was investigated by quantitative RT-PCR, western blot, dot blot and meRIP-PCR assays. RESULTS Circ_0005615 was upregulated in MM. Overexpression of circ_0005615 promoted cell viability and invasion, and suppressed apoptosis in vitro, which were opposite when circ_0005615 was knockdowned. Mechanistically, EIF4A3, a RNA-binding protein (RBP), could directly bind to circ_0005615 and ALKBH5, where ALKBH5 could directly combine with MAP3K4, forming a circ_0005615- EIF4A3-ALKBH5-MAP3K4 module. Furthermore, circ_0005615 overexpression increased m6A methylation of MAP3K4 by inhibiting ALKBH5, leading to decreased MAP3K4. Further functional experiments indicated that ALKBH5 overexpression weakened the promoting roles of circ_0005615 overexpression in MAP3K4 m6A methylation and tumor progression in MM. The above functions and mechanism were also verified in vivo. CONCLUSIONS Elevated circ_0005615 decreased MAP3K4 mediated by ALKBH5 through interacting with EIF4A3, thereby accelerating MM progression. Circ_0005615 might be a promising biomarker and target of MM.
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Affiliation(s)
- Kai Zhu
- Bengbu Medical College, Department of Hematology, Chang Huai Road 287, Bengbu 233004, China
| | - Fengquan Gou
- Bengbu Medical College, Department of Hematology, Chang Huai Road 287, Bengbu 233004, China
| | - Ziwen Zhao
- Bengbu Medical College, Department of Hematology, Chang Huai Road 287, Bengbu 233004, China
| | - Ke Xu
- Anhui University of Science and Technology, Taifeng Street 168, Shannan New District, Huainan 232001, China
| | - Jian Song
- Bengbu Medical College, No. 2600 Donghai Avenue, Bengbu 233030, China
| | - Hongyi Jiang
- Bengbu Medical College, No. 2600 Donghai Avenue, Bengbu 233030, China
| | - Feng Zhang
- The First Affiliated Hospital of Bengbu Medical College, Department of Hematology, Chang Huai Road 287, Bengbu 233004, China
| | - Yanli Yang
- The First Affiliated Hospital of Bengbu Medical College, Department of Hematology, Chang Huai Road 287, Bengbu 233004, China
| | - Jiajia Li
- The First Affiliated Hospital of Bengbu Medical College, Department of Hematology, Chang Huai Road 287, Bengbu 233004, China.
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15
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Fang X, Tang C, Zeng D, Shan Y, Liu Q, Yin X, Li Y. CircInpp5b Ameliorates Renal Interstitial Fibrosis by Promoting the Lysosomal Degradation of DDX1. Biomolecules 2024; 14:613. [PMID: 38927017 PMCID: PMC11201918 DOI: 10.3390/biom14060613] [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: 03/23/2024] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024] Open
Abstract
Renal interstitial fibrosis (RIF) is a classic pathophysiological process of chronic kidney disease (CKD). However, the mechanisms underlying RIF remain unclear. The present study found that a novel circular RNA, cirInpp5b, might be involved in RIF by high-throughput sequencing. Subsequent experiments revealed that circInpp5b was reduced in UUO mouse kidney tissues and TGF-β1-treated proximal tubular cells. The overexpression of circInpp5b inhibited RIF in UUO mice and prevented extracellular matrix (ECM) deposition in TGF-β1-treated proximal tubular cells. Furthermore, overexpression of circInpp5b down-regulated the protein level of DDX1. Mechanistically, circInpp5b bound to the DDX1 protein and promoted its lysosomal degradation. Collectively, the findings of our study demonstrate that circInpp5b ameliorates RIF by binding to the DDX1 protein and promoting its lysosomal degradation.
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Affiliation(s)
- Xi Fang
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Chengyuan Tang
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Dong Zeng
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Yi Shan
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Qianfang Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Xuemin Yin
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Ying Li
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
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16
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Yan S, Wang Z, Lan D, Niu J, Jian X, He F, Tang W, Hu C, Liu W. Circ_PABPC1 promotes the malignancy of gastric cancer through interacting with ILK to activate NF-κB pathway. Exp Cell Res 2024; 438:114058. [PMID: 38688434 DOI: 10.1016/j.yexcr.2024.114058] [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: 02/17/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Gastric cancer (GC) is a common cancer type with both high incidence and mortality. Recent studies have revealed an important role of circRNA in the development of GC. However, more experiments are needed to reveal the precise molecular mechanisms of circRNA in GC development. METHODS Bioinformatics analysis was conducted to predict the potential role of circ_PABPC1 in GC and the target proteins of circ_PABPC1. Quantitative RT-PCR, Western blot and immunohistochemistry assays were conducted to detect the levels of circ_PABPC1, NF-κB p65, NF-κB p65 (Ser536) and ILK. MTT, Edu staining, cell scratch-wound and trans-well assays were carried out to detect cell proliferation, migration and invasion. The interaction between ILK and circ_PABPC1 was confirmed by RNA immunoprecipitation (RIP), RNA pull-down and fluorescence in situ hybridization assays. Genetically modified GC cells were injected into mice to evaluate the tumor growth performance. RESULTS This study found that the high expression of circ_PABPC1 was associated with a poor prognosis of GC. The up-regulation of circ_PABPC1 promoted the proliferation, migration and invasion of GC cells. Circ_PABPC1 bound to ILK protein, thereby preventing the degradation of ILK. ILK mediated the effect of circ_PABPC1 on GC cells through activating NF-κB. CONCLUSION circ_PABPC1 promotes the malignancy of GC cells through binding to ILK to activate NF-κB signaling pathway.
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Affiliation(s)
- Siqi Yan
- Departments of Oncology, The Second Xiangya Hospital of Central-South University, Changsha, Hunan, 410011, China; Departments of Radiotherapy, Hunan Provincial Hospital of Integrated Chinese and Western Medicine, The Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha, Hunan, 410006, China
| | - Zhu Wang
- Departments of Radiotherapy, Hunan Provincial Hospital of Integrated Chinese and Western Medicine, The Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha, Hunan, 410006, China
| | - Dongqiang Lan
- Departments of Radiotherapy, Hunan Provincial Hospital of Integrated Chinese and Western Medicine, The Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha, Hunan, 410006, China
| | - Junjie Niu
- Departments of Radiotherapy, Hunan Provincial Hospital of Integrated Chinese and Western Medicine, The Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha, Hunan, 410006, China
| | - Xiaolan Jian
- Departments of Radiotherapy, Hunan Provincial Hospital of Integrated Chinese and Western Medicine, The Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha, Hunan, 410006, China
| | - Fengjiao He
- Departments of Radiotherapy, Hunan Provincial Hospital of Integrated Chinese and Western Medicine, The Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha, Hunan, 410006, China; Departments of Oncology, Xiangya Hospital of Central-South University, Changsha, Hunan, 410008, China
| | - Weizhi Tang
- Departments of Radiotherapy, Hunan Provincial Hospital of Integrated Chinese and Western Medicine, The Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha, Hunan, 410006, China
| | - Chunhong Hu
- Departments of Oncology, The Second Xiangya Hospital of Central-South University, Changsha, Hunan, 410011, China.
| | - Wei Liu
- Departments of Radiotherapy, Hunan Provincial Hospital of Integrated Chinese and Western Medicine, The Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha, Hunan, 410006, China.
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17
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Ashrafizadeh M, Dai J, Torabian P, Nabavi N, Aref AR, Aljabali AAA, Tambuwala M, Zhu M. Circular RNAs in EMT-driven metastasis regulation: modulation of cancer cell plasticity, tumorigenesis and therapy resistance. Cell Mol Life Sci 2024; 81:214. [PMID: 38733529 PMCID: PMC11088560 DOI: 10.1007/s00018-024-05236-w] [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: 12/05/2023] [Revised: 03/05/2024] [Accepted: 04/03/2024] [Indexed: 05/13/2024]
Abstract
The non-coding RNAs comprise a large part of human genome lack of capacity in encoding functional proteins. Among various members of non-coding RNAs, the circular RNAs (circRNAs) have been of importance in the pathogenesis of human diseases, especially cancer. The circRNAs have a unique closed loop structure and due to their stability, they are potential diagnostic and prognostic factors in cancer. The increasing evidences have highlighted the role of circRNAs in the modulation of proliferation and metastasis of cancer cells. On the other hand, metastasis has been responsible for up to 90% of cancer-related deaths in patients, requiring more investigation regarding the underlying mechanisms modulating this mechanism. EMT enhances metastasis and invasion of tumor cells, and can trigger resistance to therapy. The cells demonstrate dynamic changes during EMT including transformation from epithelial phenotype into mesenchymal phenotype and increase in N-cadherin and vimentin levels. The process of EMT is reversible and its reprogramming can disrupt the progression of tumor cells. The aim of current review is to understanding the interaction of circRNAs and EMT in human cancers and such interaction is beyond the regulation of cancer metastasis and can affect the response of tumor cells to chemotherapy and radiotherapy. The onco-suppressor circRNAs inhibit EMT, while the tumor-promoting circRNAs mediate EMT for acceleration of carcinogenesis. Moreover, the EMT-inducing transcription factors can be controlled by circRNAs in different human tumors.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Radiation Oncology, Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong 250000, China
- Department of General Surgery and Integrated Chinese and Western Medicine, Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Carson International Cancer Center, Shenzhen University General Hospital, Shenzhen University, Shenzhen, Guangdong, 518060, China
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Jingyuan Dai
- School of computer science and information systems, Northwest Missouri State University, Maryville, MO, 64468, USA.
| | - Pedram Torabian
- Cumming School of Medicine, Arnie Charbonneau Cancer Research Institute, University of Calgary, Calgary, AB, T2N 4Z6, Canada
- Department of Medical Sciences, University of Calgary, Calgary, AB, T2N 4Z6, Canada
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC, V6H3Z6, Canada
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Department of Translational Sciences, Xsphera Biosciences Inc. Boston, Boston, MA, USA
| | - Alaa A A Aljabali
- Faculty of Pharmacy, Department of Pharmaceutics and Pharmaceutical Technology, Yarmouk University, Irbid, Jordan
| | - Murtaza Tambuwala
- Lincoln Medical School, University of Lincoln, Brayford Pool Campus, Lincoln, LN6 7TS, UK.
- College of Pharmacy, Ras Al Khaimah Medical and Health Sciences University, Ras Al Khaimah, United Arab Emirates.
| | - Minglin Zhu
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
- Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, Hubei, 430071, China.
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18
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Sun X, Zhao X, Xu Y, Yan Y, Han L, Wei M, He M. Potential therapeutic strategy for cancer: Multi-dimensional cross-talk between circRNAs and parental genes. Cancer Lett 2024; 588:216794. [PMID: 38453043 DOI: 10.1016/j.canlet.2024.216794] [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: 01/09/2024] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
In many ways, circular RNAs (circRNAs) have been demonstrated to be crucial in the onset and advancement of cancer throughout the last ten years and have become a new focus of intense research in the field of RNAs. Accumulating studies have demonstrated that circRNAs can regulate parental gene expression via a variety of biological pathways. Furthermore, research into the complex interactions between circRNAs and their parental genes will shed light on their biological roles and open up new avenues for circRNAs' potential clinical translational uses. However, to date, multi-dimensional cross-talk between circRNAs and parental genes have not been systematically elucidated. Particularly intriguing is circRNA's exploration of tumor targeting, and potential therapeutic uses based on the parental gene regulation perspective. Here, we discuss their biogenesis, take a fresh look at the molecular mechanisms through which circRNAs control the expression of their parental genes in cancer. We further highlight We further highlight the latest circRNA clinical translational applications, including prognostic diagnostic markers, cancer vaccines, gDNA, and so on. Demonstrating the potential benefits and future applications of circRNA therapy.
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Affiliation(s)
- Xiaoyu Sun
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
| | - Xinyi Zhao
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
| | - Yan Xu
- Department of Urology, The First Hospital of China Medical University, Shenyang, China.
| | - Yuanyuan Yan
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
| | - Li Han
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
| | - Minjie Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China; Liaoning Medical Diagnosis and Treatment Center, Liaoning Province, China.
| | - Miao He
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, Liaoning Province, China; Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Shenyang, China.
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19
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Wei Z, Zhang C, Song Y, Han D, Liu J, Song X, Chao F, Wang S, Xu G, Chen G. CircUBE3A(2,3,4,5) promotes adenylate-uridylate-rich binding factor 1 nuclear translocation to suppress prostate cancer metastasis. Cancer Lett 2024; 588:216743. [PMID: 38423246 DOI: 10.1016/j.canlet.2024.216743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/07/2024] [Accepted: 02/18/2024] [Indexed: 03/02/2024]
Abstract
Metastatic progression is the primary cause of mortality in prostate cancer (PCa) patients. Although circular RNAs (circRNAs) have been implicated in cancer progression and metastasis, our current understanding of their role in PCa metastasis remains limited. In this study, we identified that circUBE3A(2,3,4,5), which originated from exons 2, 3, 4 and 5 of the human ubiquitin-protein ligase E3A (UBE3A) gene, was specifically downregulated in PCa tissues and correlated with the Gleason score, bone metastasis, and D'Amico risk classification. Through the in vitro and in vivo experiments, we demonstrated that overexpression of circUBE3A(2,3,4,5) inhibited PCa cell migration, invasion, metastasis, and proliferation. Mechanistically, circUBE3A(2,3,4,5) was found to bind to adenylate-uridylate-rich binding factor 1 (AUF1), promoting the translocation of AUF1 into the nucleus. This led to decreased AUF1 in the cytoplasm, resulting in methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) mRNA instability and a subsequent reduction at the protein level. The downregulation of MTHFD2 further inhibited vimentin expression, thereby suppressing PCa cell epithelial-mesenchymal transition. Additionally, two pairs of the short-inverted repeats (TSIRs) in flanking introns were identified to synergistically facilitate the generation of circUBE3A(2,3,4,5) and other circRNAs. In summary, TSIRs-induced circUBE3A(2,3,4,5) acts as a suppressor of PCa metastasis by enhancing AUF1 nuclear translocation, reducing MTHFD2, and subsequently inhibiting vimentin expression. This study characterizes circUBE3A(2,3,4,5) as a functional circRNA and proposes it as a highly promising target for preventing PCa metastasis.
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Affiliation(s)
- Ziwei Wei
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Cong Zhang
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China; Department of Urology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Yufeng Song
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Dunsheng Han
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Jinke Liu
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Xiaoming Song
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China
| | - Fan Chao
- Department of Urology, Zhongshan Hospital, Fudan University (Xiamen Branch), Xiamen, 361015, Fujian, China
| | - Shiyu Wang
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 201508, Shanghai, China.
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, 201508, Shanghai, China.
| | - Gang Chen
- Department of Urology, Jinshan Hospital, Fudan University, 201508, Shanghai, China.
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20
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Ni X, Duan L, Bao Y, Li J, Zhang X, Jia D, Wu N. Circ_005077 accelerates myocardial lipotoxicity induced by high-fat diet via CyPA/p47PHOX mediated ferroptosis. Cardiovasc Diabetol 2024; 23:129. [PMID: 38622592 PMCID: PMC11020354 DOI: 10.1186/s12933-024-02204-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/14/2024] [Indexed: 04/17/2024] Open
Abstract
The long-term high-fat diet (HFD) can cause myocardial lipotoxicity, which is characterized pathologically by myocardial hypertrophy, fibrosis, and remodeling and clinically by cardiac dysfunction and heart failure in patients with obesity and diabetes. Circular RNAs (circRNAs), a novel class of noncoding RNA characterized by a ring formation through covalent bonds, play a critical role in various cardiovascular diseases. However, few studies have been conducted to investigate the role and mechanism of circRNA in myocardial lipotoxicity. Here, we found that circ_005077, formed by exon 2-4 of Crmp1, was significantly upregulated in the myocardium of an HFD-fed rat. Furthermore, we identified circ_005077 as a novel ferroptosis-related regulator that plays a role in palmitic acid (PA) and HFD-induced myocardial lipotoxicity in vitro and in vivo. Mechanically, circ_005077 interacted with Cyclophilin A (CyPA) and inhibited its degradation via the ubiquitination proteasome system (UBS), thus promoting the interaction between CyPA and p47phox to enhance the activity of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase responsible for ROS generation, subsequently inducing ferroptosis. Therefore, our results provide new insights into the mechanisms of myocardial lipotoxicity, potentially leading to the identification of a novel therapeutic target for the treatment of myocardial lipotoxicity in the future.
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Affiliation(s)
- Xinzhu Ni
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, Liaoning, P.R. China
| | - Lian Duan
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, Liaoning, P.R. China
| | - Yandong Bao
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, Liaoning, P.R. China
| | - Jinyang Li
- Department of Geriatric Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Xiaowen Zhang
- Medical Research Center, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Dalin Jia
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, Liaoning, P.R. China.
| | - Nan Wu
- Department of Central Laboratory, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
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21
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Chen H, Wang X, Cheng H, Deng Y, Chen J, Wang B. CircRNA circRREB1 promotes tumorigenesis and progression of breast cancer by activating Erk1/2 signaling through interacting with GNB4. Heliyon 2024; 10:e28785. [PMID: 38617926 PMCID: PMC11015410 DOI: 10.1016/j.heliyon.2024.e28785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/16/2024] Open
Abstract
Current investigations have illuminated the essential roles played by circular RNAs (circRNAs) in driving breast cancer (BC) tumorigenesis. However, the functional implications and molecular underpinnings of most circRNAs in BC are not well characterized. Here, Circular RNA (circRNA) expression profiles were analyzed in four surgically resected BC cases along with adjacent non-cancerous tissues applying RNA microarray analysis. The levels and prognostic implications of circRREB1 in BC were subjected to quantitative real-time PCR (qRT-PCR) and in situ hybridization (ISH). Experimental manipulation of circRREB1 levels in both in vivo and in vitro settings further delineated its role in BC cell growth, invasion, and metastasis. The mechanical verification of circRREB1's interaction with GNB4 was established through RNA pull-down, mass spectrometry, Western blot analysis, RNA immunoprecipitation assays (RIP), fluorescence ISH (FISH), and rescue experiments. We found that circRREB1 exhibited significant upregulation in BC tissues and cells, implicating its association with an unfavorable prognosis in BC patients. CircRREB1 knockdown elicited anti-proliferative, anti-migratory, anti-invasive, and pro-apoptotic effects in BC cells, whereas its upregulation exerted opposing influences. Follow-up mechanistic examinations suggested that circRREB1 might interact with GNB4 directly, inducing the activation of Erk1/2 signaling and driving BC progression. Our findings collectively indicate that the interplay of circRREB1 with GNB4 promotes Erk1/2 signaling, thereby fostering BC progression, and positioning circRREB1 as a candidate therapeutic target for intervention in BC.
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Affiliation(s)
- Hong Chen
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China
| | - Xiaosong Wang
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China
| | - Hang Cheng
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China
| | - Yumei Deng
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China
| | - Junxia Chen
- Department of Cell Biology and Genetics, Chongqing Medical University, Chongqing 400016, China
| | - Bin Wang
- Department of Oncology, The Seventh People's Hospital of Chongqing (Affiliated Central Hospital of Chongqing University of Technology), Chongqing 400054, China
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22
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Jia S, Yu L, Wang L, Peng L. The functional significance of circRNA/miRNA/mRNA interactions as a regulatory network in lung cancer biology. Int J Biochem Cell Biol 2024; 169:106548. [PMID: 38360264 DOI: 10.1016/j.biocel.2024.106548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/22/2024] [Accepted: 02/02/2024] [Indexed: 02/17/2024]
Abstract
Lung cancer, the leading cause of cancer-related deaths, presents significant challenges to patients due to its poor prognosis. Recent research has increasingly implicated circular RNAs in the development and progression of lung cancer. These circular RNAs have been found to impact various aspects of tumor behavior, including proliferation, metastasis, cell cycle regulation, apoptosis, cancer stem cells, therapy response, and the tumor microenvironment. One of the key mechanisms by which circular RNAs exert their influence is through their ability to act as miRNA sponges, sequestering microRNAs and preventing them from targeting other RNA molecules. Accumulating evidence suggests that circular RNAs can function as competing endogenous RNAs, affecting the expression of target mRNAs by sequestering microRNAs. Dysregulation of competing endogenous RNAs networks involving circular RNAs, microRNAs, and mRNAs leads to the aberrant expression of oncogenes and tumor suppressors involved in lung cancer pathogenesis. Understanding the dynamic interplay and molecular mechanisms among circular RNAs, microRNAs, and mRNAs holds great promise for advancing early diagnosis, personalized therapeutic interventions, and improved patient outcomes in lung cancer. Therefore, this study aims to provide an in-depth exploration of the executive roles of circular RNAs/microRNAs/ mRNAs interactions in lung cancer pathogenesis and their potential utility for diagnosing lung cancer, predicting patient prognosis, and guiding targeted therapies. By offering a comprehensive overview of the dysregulation of the axes as driving factors in lung cancer, we aim to pave the way for their translation into clinical practice in the future.
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Affiliation(s)
- Shengnan Jia
- Department of Respiratory Medicine, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, China; Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - Ling Yu
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun 130041, China
| | - Lihui Wang
- Department of Respiratory Medicine, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, China.
| | - Liping Peng
- Department of Respiratory Medicine, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, China.
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23
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Liu X, Feng Y, Wang L, Shi L, Ji K, Hu N, Du Y, Liu M, Wang M. Silencing of circ_0088036 inhibits growth and invasion of lung adenocarcinoma through miR-203/SP1 axis. J Biochem Mol Toxicol 2024; 38:e23684. [PMID: 38533528 DOI: 10.1002/jbt.23684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 02/06/2024] [Accepted: 02/23/2024] [Indexed: 03/28/2024]
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide. Circular RNA (circRNA) circ_0088036 is a recently discovered circRNA known for its roles in rheumatoid arthritis. The study aimed to study the function of circ_0088036 in lung adenocarcinoma (LUAD). Circ_0088036 expressions were analyzed in the Gene Expression Omnibus (GEO) database. The relationship between circ_0088036 expressions and clinicopathological data of LUAD was assessed. The messenger RNA and protein levels were analyzed by quantitative real-time polymerase chain reaction and Western blot. Cell viability, apoptosis, and invasion were tested by Cell Counting Kit-8, flow cytometry, and transwell assay. The direct interaction between microRNA-203 (miR-203) and circ_0088036 or specificity protein 1 (SP1) was confirmed by dual-luciferase reporter assay, RNA pull-down, and RNA immunoprecipitation assays. Circ_0088036 was overexpressed in LUAD from the analysis of the GEO database. The poor prognosis was found in the patients with high expressions of circ_0088036. The level of Circ_0088036 was increased in LUAD tissues and cells. In terms of function, the deletion of circ_0088036 inhibited LUAD tumorigenesis in vitro by repressing cell growth, invasion, and epithelial-mesenchymal transition (EMT). In mechanism, circ_0088036 could competitively sponge miR-203, thereby affecting the expressions of the target gene SP1. In addition, lessening of miR-203 and enlarging of SP1 could eliminate the anticancer effect of short hairpin RNA-circ_0088036 on LUAD cells. Besides, the knockout of circ_0088036 hindered the growth of xenografted tumors in vivo. Circ_0088036 promoted the LUAD cell growth, invasion, and EMT via modulating the miR-203/SP1 axis in LUAD.
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Affiliation(s)
- Xiuhua Liu
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yan Feng
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Linna Wang
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Lei Shi
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Kunxiang Ji
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Nan Hu
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Yang Du
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Mingyang Liu
- Department of Oncology, General Hospital of Heilongjiang Province Land Reclamation Bureau, Harbin, Heilongjiang, China
| | - Man Wang
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
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24
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Yuan YY, Wu H, Chen QY, Fan H, Shuai B. Construction of the underlying circRNA-miRNA-mRNA regulatory network and a new diagnostic model in ulcerative colitis by bioinformatics analysis. World J Clin Cases 2024; 12:1606-1621. [PMID: 38576737 PMCID: PMC10989427 DOI: 10.12998/wjcc.v12.i9.1606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/02/2024] [Accepted: 03/04/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) are involved in the pathogenesis of many diseases through competing endogenous RNA (ceRNA) regulatory mechanisms. AIM To investigate a circRNA-related ceRNA regulatory network and a new predictive model by circRNA to understand the diagnostic mechanism of circRNAs in ulcerative colitis (UC). METHODS We obtained gene expression profiles of circRNAs, miRNAs, and mRNAs in UC from the Gene Expression Omnibus dataset. The circRNA-miRNA-mRNA network was constructed based on circRNA-miRNA and miRNA-mRNA interactions. Functional enrichment analysis was performed to identify the biological mechanisms involved in circRNAs. We identified the most relevant differential circRNAs for diagnosing UC and constructed a new predictive nomogram, whose efficacy was tested with the C-index, receiver operating characteristic curve (ROC), and decision curve analysis (DCA). RESULTS A circRNA-miRNA-mRNA regulatory network was obtained, containing 12 circRNAs, three miRNAs, and 38 mRNAs. Two optimal prognostic-related differentially expressed circRNAs, hsa_circ_0085323 and hsa_circ_0036906, were included to construct a predictive nomogram. The model showed good discrimination, with a C-index of 1(> 0.9, high accuracy). ROC and DCA suggested that the nomogram had a beneficial diagnostic ability. CONCLUSION This novel predictive nomogram incorporating hsa_circ_0085323 and hsa_circ_0036906 can be conveniently used to predict the risk of UC. The circRNa-miRNA-mRNA network in UC could be more clinically significant.
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Affiliation(s)
- Yu-Yi Yuan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Hui Wu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Qian-Yun Chen
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Bo Shuai
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
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25
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DeSouza NR, Nielsen KJ, Jarboe T, Carnazza M, Quaranto D, Kopec K, Suriano R, Islam HK, Tiwari RK, Geliebter J. Dysregulated Expression Patterns of Circular RNAs in Cancer: Uncovering Molecular Mechanisms and Biomarker Potential. Biomolecules 2024; 14:384. [PMID: 38672402 PMCID: PMC11048371 DOI: 10.3390/biom14040384] [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: 12/27/2023] [Revised: 03/08/2024] [Accepted: 03/14/2024] [Indexed: 04/28/2024] Open
Abstract
Circular RNAs (circRNAs) are stable, enclosed, non-coding RNA molecules with dynamic regulatory propensity. Their biogenesis involves a back-splicing process, forming a highly stable and operational RNA molecule. Dysregulated circRNA expression can drive carcinogenic and tumorigenic transformation through the orchestration of epigenetic modifications via extensive RNA and protein-binding domains. These multi-ranged functional capabilities have unveiled extensive identification of previously unknown molecular and cellular patterns of cancer cells. Reliable circRNA expression patterns can aid in early disease detection and provide criteria for genome-specific personalized medicine. Studies described in this review have revealed the novelty of circRNAs and their biological ss as prognostic and diagnostic biomarkers.
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Affiliation(s)
- Nicole R. DeSouza
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
| | - Kate J. Nielsen
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
| | - Tara Jarboe
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
| | - Michelle Carnazza
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
| | - Danielle Quaranto
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
| | - Kaci Kopec
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
| | - Robert Suriano
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
- Division of Natural Sciences, University of Mount Saint Vincent, Bronx, NY 10471, USA
| | - Humayun K. Islam
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
| | - Raj K. Tiwari
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
- Department of Otolaryngology, New York Medical College, Valhalla, NY 10595, USA
| | - Jan Geliebter
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA; (N.R.D.)
- Department of Otolaryngology, New York Medical College, Valhalla, NY 10595, USA
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26
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Chen S, Zong Y, Hou Z, Deng Z, Xia Z. Splicing factor ESRP1 derived circ_0068162 promotes the progression of oral squamous cell carcinoma via the miR-186/JAG axis. Carcinogenesis 2024; 45:107-118. [PMID: 37966490 DOI: 10.1093/carcin/bgad082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/18/2023] [Accepted: 11/09/2023] [Indexed: 11/16/2023] Open
Abstract
OBJECTIVES Oral squamous cell carcinoma (OSCC) is a common malignancy in the oral and maxillofacial regions with an increasing incidence rate. Circular RNA (circRNA) is a recently discovered long-chain non-coding RNA family member. The objective of this study was to analyze the role of circ_0068162 in OSCC development. METHODS We downloaded sample data GSE145608 from the Gene Expression Omnibus database. Online databases Starbase, TargetScan and miRDB were used to predict the target microRNAs (miRNAs) and genes. Cell viability and proliferation were assessed using the CCK-8 and EdU assays, respectively. Cell migration and invasion abilities were detected using transwell assay. The double luciferase reporter and RNA immunoprecipitation (RIP) assays were performed to verify the interaction relationship between the identified target molecules. RNase R and actinomycin D treatment were performed to analyze the stability of circ_0068162. RESULTS We found that circ_0068162 was overexpressed in the cytoplasm of OSCC cells and clinical OSCC tissues. Knockdown of circ_0068162 inhibited the growth, migration and invasion of OSCC cells. We also identified miR-186 as the target miRNA of circ_0068162, and JAG1 and JAG2 as the target genes of miR-186. The miR-186 inhibitor rescued the effects of sh-circ_0068162 and JAG1/JAG2 overexpression rescued the effects of miR-186 mimic in OSCC cells. Furthermore, ESRP1 promoted the biosynthesis of circ_0068162. CONCLUSIONS The circ_0068162/miR-186/JAGs/ESRP1 feedback loop is closely related to OSCC development.
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Affiliation(s)
- Shuai Chen
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Erqi District, Zhengzhou 450052, Henan, China
| | - Yingrui Zong
- Department of Oral Prevention, The First Affiliated Hospital of Zhengzhou University, Stomatological Hospital of Henan Province, 1 Jianshe East Road, Erqi District, Zhengzhou 450052, Henan, China
| | - Zhenzhen Hou
- Department of Oral Prevention, The First Affiliated Hospital of Zhengzhou University, Stomatological Hospital of Henan Province, 1 Jianshe East Road, Erqi District, Zhengzhou 450052, Henan, China
| | - Zhifen Deng
- Clinical Systems Biology Laboratories, The First Affiliated Hospital of Zhengzhou University, 1 Longhu Zhonghuan Road, Jinshui District, Zhengzhou 450001, Henan, China
| | - Zongping Xia
- Clinical Systems Biology Laboratories, The First Affiliated Hospital of Zhengzhou University, 1 Longhu Zhonghuan Road, Jinshui District, Zhengzhou 450001, Henan, China
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27
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Babayev M, Silveyra P. Role of circular RNAs in lung cancer. Front Genet 2024; 15:1346119. [PMID: 38501058 PMCID: PMC10944888 DOI: 10.3389/fgene.2024.1346119] [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: 11/29/2023] [Accepted: 02/23/2024] [Indexed: 03/20/2024] Open
Abstract
Lung cancer remains a global public health concern with significant research focus on developing better diagnosis/prognosis biomarkers and therapeutical targets. Circular RNAs (circRNAs) are a type of single-stranded RNA molecules that covalently closed and have ubiquitous expression. These molecules have been implicated in a variety of disease mechanisms, including lung cancer, as they exhibit oncogenic or tumor suppressor characteristics. Recent research has shown an important role that circRNAs play at different stages of lung cancer, particularly in lung adenocarcinoma. In this review, we summarize the latest research on circRNAs and their roles within lung cancer diagnosis, as well as on disease mechanisms. We also discuss the knowledge gaps on these topics and possible future research directions.
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Affiliation(s)
| | - Patricia Silveyra
- Department of Environmental and Occupational Health, Indiana University School of Public Health Bloomington, Bloomington, IN, United States
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28
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Zhu J, Li Q, Wu Z, Xu W, Jiang R. Circular RNA-mediated miRNA sponge & RNA binding protein in biological modulation of breast cancer. Noncoding RNA Res 2024; 9:262-276. [PMID: 38282696 PMCID: PMC10818160 DOI: 10.1016/j.ncrna.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/30/2024] Open
Abstract
Circular RNAs (circRNAs) and small non-coding RNAs of the head-to-junction circle in the construct play critical roles in gene regulation and are significantly associated with breast cancer (BC). Numerous circRNAs are potential cancer biomarkers that may be used for diagnosis and prognosis. Widespread expression of circRNAs is regarded as a feature of gene expression in highly diverged eukaryotes. Recent studies show that circRNAs have two main biological modulation models: sponging and RNA-binding. This review explained the biogenesis of circRNAs and assessed emerging findings on their sponge function and role as RNA-binding proteins (RBPs) to better understand how their interaction alters cellular function in BC. We focused on how sponges significantly affect the phenotype and progression of BC. We described how circRNAs exercise the translation functions in ribosomes. Furthermore, we reviewed recent studies on RBPs, and post-protein modifications influencing BC and provided a perspective on future research directions for treating BC.
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Affiliation(s)
- Jing Zhu
- School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Qian Li
- Medical Department, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Zhongping Wu
- School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Wei Xu
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Rilei Jiang
- School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
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29
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Liu M, Guo B, Zhang G, Qi H. Circ_0091579 Knockdown Inhibited HCC Proliferation and Glutamine Metabolism Through miR-1270/YAP1 Axis. Biochem Genet 2024; 62:208-228. [PMID: 37314551 DOI: 10.1007/s10528-023-10386-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 04/14/2023] [Indexed: 06/15/2023]
Abstract
A growing number of studies have indicated that circRNAs play an important role in the progression of malignant tumors, including hepatocellular carcinoma (HCC). In this study, we designed to explore the abnormal expression of hsa_circ_0091579 (circ_0091579) and its role in the pathogenesis of HCC. In this study, the mRNA levels of circ_0091579, miR-1270, and Yes-associated protein (YAP1) were assessed by quantitative real-time polymerase chain reaction (qRT-PCR). RNase R and Actinomycin D were used to test the stability of circ_0091579. Cell Counting Kit-8 (CCK-8) was used to measure cell viability. Tubule formation assay was used to determine the effect of HCC cells on the number of tubes. Cell apoptosis was detected by flow cytometry. Western blot was used for the protein levels. Transwell and wound healing tests were used to measure the abilities of invasion and migration. The effect of circ_0091579 knockdown on tumor growth was verified in vivo by xenograft tumor assay and Immunohistochemistry (IHC) analysis. Dual-luciferase reporter or RIP assay was used to detect the relationship between miR-1270 and circ_0091579 or YAP1. Glutamine metabolism was determined by ELISA and western blot assays. In the present study, we found that circ_0091579 was upregulated in HCC tissues and cells. Inhibited circ_0091579 expression significantly suppressed proliferation and promoted apoptosis of HCC cells. Moreover, circ_0091579 knockdown inhibited tumor growth in vivo. Bioinformatic prediction and luciferase assay showed that circ_0091579 acted as a molecular sponge for miR-1270 and YAP1 was a target gene of miR-1270. MiR-1270 silencing could reverse the inhibitory effect of circ_0091579 knockdown on HCC progression, and YAP1 overexpression also could reverse the suppressive effect of circ_0091579 silencing on HCC progression. Meanwhile, miR-1270 inhibitor could invert the negative regulation effect of circ_0091579 silencing on YAP1 expression. Circ_0091579 promoted HCC progression by regulating the miR-1270/YAP1 axis, and our study might offer novel biomarkers and therapeutic targets for HCC.
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Affiliation(s)
- Ming Liu
- Department of Radiotherapy, Taian City Central Hospital, No. 29, Longtan Road, Taishan District, Tai'an, Shandong, China
| | - Bing Guo
- Department of Radiotherapy, Taian City Central Hospital, No. 29, Longtan Road, Taishan District, Tai'an, Shandong, China
| | - Ge Zhang
- Department of Radiotherapy, Taian City Central Hospital, No. 29, Longtan Road, Taishan District, Tai'an, Shandong, China
| | - Huanpeng Qi
- Department of Radiotherapy, Taian City Central Hospital, No. 29, Longtan Road, Taishan District, Tai'an, Shandong, China.
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Zhou W, Li X, Li X, Liu Y, Song W, Yang Q. The role of circular RNA in preeclampsia: From pathophysiological mechanism to clinical application. Life Sci 2024; 338:122407. [PMID: 38184270 DOI: 10.1016/j.lfs.2023.122407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024]
Abstract
Preeclampsia (PE) is a common pregnancy-induced hypertension disorder that poses a significant threat to the health of pregnant women and fetuses, and has become a leading cause of maternal, fetal, and neonatal mortality. Currently, the therapy strategy for PE is mainly prevention management and symptomatic treatment, and only delivery can completely terminate PE. Therefore, a deeper understanding of the pathogenesis of PE is needed to make treatment and prevention more effective and targeted. With the deepening of molecular etiology research, circular RNAs (circRNAs) have been found to be widely involved in various processes of PE pathogenesis. As a kind of RNA with a special "head to tail" loop structure, the characteristics of circRNAs enable them to play diverse roles in the pathophysiology of PE, and can also serve as ideal biomarkers for early prediction and monitoring progression of PE. In this review, we summarized the latest research on PE-related circRNAs, trying to elucidate the unique or shared roles of circRNAs in various pathophysiological mechanisms of PE, aiming to provide a whole picture of current research on PE-related circRNAs, and extend a new perspective for the precise screening and targeted therapy of PE.
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Affiliation(s)
- Wenjing Zhou
- Medical Research Center, The Second Hospital of Jilin University, Changchun, Jilin, China; Department of Cancer Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Xiuying Li
- Medical Research Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.
| | - Xin Li
- Medical College, Jilin Engineering Vocational College, Siping, Jilin, China.
| | - Yaojia Liu
- Medical Research Center, The Second Hospital of Jilin University, Changchun, Jilin, China.
| | - Wenling Song
- Department of Obstetrics, The First Hospital of Jilin University, Changchun, Jilin, China.
| | - Qiwei Yang
- Medical Research Center, The Second Hospital of Jilin University, Changchun, Jilin, China.
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Du W, Quan X, Wang C, Song Q, Mou J, Pei D. Regulation of tumor metastasis and CD8 + T cells infiltration by circRNF216/miR-576-5p/ZC3H12C axis in colorectal cancer. Cell Mol Biol Lett 2024; 29:19. [PMID: 38267865 PMCID: PMC10809481 DOI: 10.1186/s11658-024-00539-z] [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: 10/04/2023] [Accepted: 01/17/2024] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND The tumor immune microenvironment (TIME) is an important regulator of tumor progression, growth and metastasis. In addition, tumor metastasis is one of the principal obstacles to the treatment of colorectal cancer (CRC). Circular RNAs (circRNAs) have been recognized as important regulators in the development of malignancies. However, their specific roles and mechanisms in both CRC metastasis and TIME have not been thoroughly investigated. METHODS High-throughput next-generation sequencing technology and real-time fluorescence quantitative PCR technology were performed to identify differential circRNAs in CRC. Functional assays including transwell assay, wound healing assay, and metastasis models were conducted to assess the effect of circRNF216 on CRC metastasis. In addition, luciferase reporter, western blot, RNA immunoprecipitation (RIP), and fluorescent in situ hybridization (FISH) were performed to explore the underlying mechanism of circRNF216. The level of immune infiltration was assessed by bioinformatics analysis and flow cytometry in CRC model. Furthermore, rescue and mutation experiments were used for verification. RESULTS circRNF216 was identified as a putative tumor suppressor that is downregulated in CRC tissues and cells. Overexpression of circRNF216 inhibits metastasis in vitro and vivo. Mechanistically, circRNF216 acts as a competitive endogenous RNA (ceRNA) for miR-576-5p, alleviating miR-576-5p repression on its target ZC3H12C, which in turn downregulated N-cadherin. Additionally, circRNF216 could enhance the infiltration level of CD8+ T cells by upregulating ZC3H12C, ultimately inhibiting the development of CRC, which suggests that circRNF216 is a potential biomarker for the treatment of CRC. CONCLUSIONS Here, we provide novel mechanistic insight revealing how circRNF216 functioned in CRC metastasis and TIME via the circRNF216/miR-576-5p/ZC3H12C pathway. Therefore, circRNF216 holds promise as a potential therapeutic target and novel diagnostic marker for CRC.
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Affiliation(s)
- Wenqi Du
- Department of Pathology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
- Department of Human Anatomy, Xuzhou Medical University, Xuzhou, China
- Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Xin Quan
- Department of Pathology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Chaoqun Wang
- Department of Pathology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Qiuya Song
- Department of Pathology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Jie Mou
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China.
| | - Dongsheng Pei
- Department of Pathology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China.
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.
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Xie C, Hao X, Yuan H, Wang C, Sharif R, Yu H. Crosstalk Between circRNA and Tumor Microenvironment of Hepatocellular Carcinoma: Mechanism, Function and Applications. Onco Targets Ther 2024; 17:7-26. [PMID: 38283733 PMCID: PMC10812140 DOI: 10.2147/ott.s437536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/30/2023] [Indexed: 01/30/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common aggressive tumors in the world. Despite the availability of various treatments, its prognosis remains poor due to the lack of specific diagnostic indicators and the high heterogeneity of HCC cases. CircRNAs are noncoding RNAs with stable and highly specific expression. Extensive research evidence suggests that circRNAs mediate the pathogenesis and progression of HCC through acting as miRNA sponges, protein modulators, and translation templates. Tumor microenvironment (TME) has become a hotspot of immune-related research in recent years due to its effects on metabolism, secretion and immunity of HCC. Accordingly, understanding the role played by circRNAs in TME is important for the study of HCC. This review will discuss the crosstalk between circRNAs and TME in HCC. In addition, we will discuss the current deficiencies and controversies in research on circRNAs and predict future research directions.
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Affiliation(s)
- Chenxi Xie
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Xiaopei Hao
- The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, People’s Republic of China
| | - Hao Yuan
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Chongyu Wang
- The First Clinical Medical College of Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Razinah Sharif
- Center for Healthy Ageing & Wellness, Faculty of Health Sciences, University Kebangsaan Malaysia, Kuala Lumpur, 50300, Malaysia
- Biocompatibility Laboratory, Centre for Research and Instrumentation, University Kebangsaan Malaysia, UKM, Bangi, Selangor Darul Ehsan, 43600, Malaysia
| | - Haibo Yu
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
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Long F, Tian B, Li L, Ma M, Chen Z, Tan G, Yin N, Zhong C, Yu B, Guo Y, Chen M, Hu G. CircPOFUT1 fosters colorectal cancer metastasis and chemoresistance via decoying miR-653-5p/E2F7/WDR66 axis and stabilizing BMI1. iScience 2024; 27:108729. [PMID: 38230259 PMCID: PMC10790033 DOI: 10.1016/j.isci.2023.108729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 10/31/2023] [Accepted: 12/11/2023] [Indexed: 01/18/2024] Open
Abstract
CircRNAs are implicated in colorectal cancer (CRC) development and progression. Protein O-fucosyltransferase 1 (POFUT1) plays an oncogenic role via activating Notch1 signaling in CRC. However, the roles of circPOFUT1, which is originated from POFUT1, have not been investigated. Our study showed circPOFUT1 was highly expressed in CRC tissues and cells. CircPOFUT1 enhanced the proliferation, migration and invasion of CRC cells, and promoted tumor growth and liver metastasis in vivo. It also reinforced stemness and chemoresistance of CRC cells. Mechanistically, circPOFUT1 regulated the function of E2F7 via sponging miR-653-5p, thereby transcriptionally inducing WDR66 expression and further promoting metastasis in CRC. On the other hand, circPOFUT1 promoted stemness and chemoresistance of CRC cells via stabilizing BMI1 in an IGF2BP1-dependent manner. In conclusion, circPOFUT1 fosters CRC metastasis and chemoresistance via decoying miR-653-5p/E2F7/WDR66 axis and stabilizing BMI1.
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Affiliation(s)
- Fei Long
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
- Postdoctoral Station of Basic Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Buning Tian
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Liang Li
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Min Ma
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Zhijian Chen
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Guojiang Tan
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Ning Yin
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Chonglei Zhong
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Bowen Yu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Yihang Guo
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Miao Chen
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Gui Hu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
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Xu Y, Xu T, Huang Y, Wan J, Jiang Z. Silencing hsa_circ_0032449 inhibits the pancreatic differentiation of human embryonic stem cells via the hsa_miR-195-5p/CCND1/PI3K/AKT signaling pathway. Exp Cell Res 2024; 434:113879. [PMID: 38072304 DOI: 10.1016/j.yexcr.2023.113879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023]
Abstract
Stem cell-derived β cells (SC-β cells) differentiated from stem cell-derived pancreatic progenitor (PP) cells are promising tools for enabling normal glucose control of islet transplants and have therapeutic potential for type 1 diabetes treatment. Pancreatic specification is essential for SC-β cell induction in vitro and low-quality PP cells may convert into derivatives of non-pancreatic lineages both in vivo and in vitro, impeding PP-derived β cell safety and differentiation efficiency. Circular RNA (circRNA) commonly determines the fate of stem cells by acting as competing endogenous RNA (ceRNA). Currently, the relationships between endogenous circRNA and pancreatic specification remain elusive. Herein, we used whole transcriptome sequencing analysis and functional experiments to reveal that deficiency of hsa_circ_0032449 resulted in posterior foregut-derived PP cells with a weakened the progenitor state with decreased expression of PDX1, NKX6.1 and CCND1. As differentiation processed into maturation, silencing of hsa_circ_0032449 suppressed PP cell development into functionally mature and glucose-responsive SC-β cells. These SC-β cells exhibited lower serum C-peptide levels compared with those of control groups in nude mice and had difficulties in reversing hyperglycemia in STZ-induced diabetic nude mice. Mechanistically, loss of hsa_circ_0032449 participated in PI3K-AKT signaling transduction by acting as a ceRNA to sponge miR-195-5p and by influencing the expression of the downstream target CCND1 at transcription and translation levels. Overall, our findings identified hsa_circ_0032449 as an essential PP cell-fate specification regulator, indicating a promising potential in clinical applications and basic research.
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Affiliation(s)
- Yang Xu
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China
| | - Tianxin Xu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Yan Huang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Jian Wan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China.
| | - Zhaoyan Jiang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, School of Medicine, Tongji University, Shanghai 200092, China.
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Brezski A, Murtagh J, Schulz MH, Zarnack K. A systematic analysis of circRNAs in subnuclear compartments. RNA Biol 2024; 21:1-16. [PMID: 39257052 PMCID: PMC11404584 DOI: 10.1080/15476286.2024.2395718] [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] [Revised: 06/21/2024] [Accepted: 08/13/2024] [Indexed: 09/12/2024] Open
Abstract
CircRNAs are an important class of RNAs with diverse cellular functions in human physiology and disease. A thorough knowledge of circRNAs including their biogenesis and subcellular distribution is important to understand their roles in a wide variety of processes. However, the analysis of circRNAs from total RNA sequencing data remains challenging. Therefore, we developed Calcifer, a versatile workflow for circRNA annotation. Using Calcifer, we analysed APEX-Seq data to compare circRNA occurrence between whole cells, nucleus and subnuclear compartments. We generally find that circRNAs show higher abundance in whole cells compared to nuclear samples, consistent with their accumulation in the cytoplasm. The notable exception is the single-exon circRNA circCANX(9), which is unexpectedly enriched in the nucleus. In addition, we observe that circFIRRE prevails over the linear lncRNA FIRRE in both the cytoplasm and the nucleus. Zooming in on the subnuclear compartments, we show that circRNAs are strongly depleted from nuclear speckles, indicating that excess splicing factors in this compartment counteract back-splicing. Our results thereby provide valuable insights into the subnuclear distribution of circRNAs. Regarding circRNA function, we surprisingly find that the majority of all detected circRNAs possess complete open reading frames with potential for cap-independent translation. Overall, we show that Calcifer is an easy-to-use, versatile and sustainable workflow for the annotation of circRNAs which expands the repertoire of circRNA tools and allows to gain new insights into circRNA distribution and function.
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Affiliation(s)
- Andre Brezski
- Buchmann Institute for Molecular Life Sciences (BMLS) & Institute of Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Hesse, Germany
| | - Justin Murtagh
- Department of Medicine, Institute for Computational Genomic Medicine and Institute of Cardiovascular Regeneration, Goethe University Frankfurt, Frankfurt am Main, Hesse, Germany
| | - Marcel H Schulz
- Department of Medicine, Institute for Computational Genomic Medicine and Institute of Cardiovascular Regeneration, Goethe University Frankfurt, Frankfurt am Main, Hesse, Germany
- Cardio-Pulmonary Institute, Goethe University Frankfurt, Frankfurt am Main, Hesse, Germany
- German Center for Cardiovascular Research, Partner site Rhein-Main, Frankfurt am Main, Hesse, Germany
| | - Kathi Zarnack
- Buchmann Institute for Molecular Life Sciences (BMLS) & Institute of Molecular Biosciences, Goethe University Frankfurt, Frankfurt am Main, Hesse, Germany
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Gabryelska MM, Webb ST, Lin H, Gantley L, Kirk K, Liu R, Stringer BW, Conn VM, Conn SJ. Native Circular RNA Pulldown Method to Simultaneously Profile RNA and Protein Interactions. Methods Mol Biol 2024; 2765:299-309. [PMID: 38381346 DOI: 10.1007/978-1-0716-3678-7_16] [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] [Indexed: 02/22/2024]
Abstract
Circular RNAs (circRNAs) are a widespread, cell-, tissue-, and disease-specific class of largely non-coding RNA transcripts. These single-stranded, covalently-closed transcripts arise through non-canonical splicing of pre-mRNA, a process called back-splicing. Back-splicing results in circRNAs which are distinguishable from their cognate mRNA as they possess a unique sequence of nucleic acids called the backsplice junction (BSJ). CircRNAs have been shown to play key functional roles in various cellular contexts and achieve this through their interaction with other macromolecules, particularly other RNA molecules and proteins. To elucidate the molecular mechanisms underlying circRNA function, it is necessary to identify these interacting partners. Herein, we present an optimized strategy for the simultaneous purification of the circRNA interactome within eukaryotic cells, allowing the identification of both circRNA-RNA and circRNA-protein interactions.
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Affiliation(s)
- Marta M Gabryelska
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Stuart T Webb
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - He Lin
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Laura Gantley
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Kirsty Kirk
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Ryan Liu
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Brett W Stringer
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Vanessa M Conn
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Simon J Conn
- Flinders Health and Medical Research Institute (FHMRI), College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia.
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Lun J, Guo J, Yu M, Zhang H, Fang J. Circular RNAs in inflammatory bowel disease. Front Immunol 2023; 14:1307985. [PMID: 38187401 PMCID: PMC10771839 DOI: 10.3389/fimmu.2023.1307985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 12/07/2023] [Indexed: 01/09/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a term encompassing a few chronic inflammatory disorders that leads to damage of the intestinal tract. Although much progress has been made in understanding the pathology of IBD, the precise pathogenesis is not completely understood. Circular RNAs (circRNAs) are single-stranded, covalently closed, endogenous molecules in eukaryotes with a variety of biological functions. CircRNAs have been shown to have regulatory effects in many diseases, such as cancer, cardiovascular disease, and neurological disorders. CircRNAs have also been found to play important roles in IBD, and although they are not sufficiently investigated in the context of IBD, a few circRNAs have been identified as potential biomarkers for the diagnosis and prognosis of IBD and as potential therapeutic targets for IBD. Herein, we survey recent progress in understanding the functions and roles of circRNAs in IBD and discuss their potential clinical applications.
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Affiliation(s)
- Jie Lun
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao, China
| | - Jing Guo
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao, China
| | - Mengchao Yu
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, China
| | - Hongwei Zhang
- Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, China
| | - Jing Fang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao Cancer Institute, Qingdao, China
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Chen Z, Li Y, He K, Yang J, Deng Q, Chen Y, Fu Z. CircGPRC5A enhances colorectal cancer progress by stabilizing PPP1CA and inducing YAP dephosphorylation. J Exp Clin Cancer Res 2023; 42:334. [PMID: 38057879 PMCID: PMC10698990 DOI: 10.1186/s13046-023-02915-7] [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: 07/26/2023] [Accepted: 11/23/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND With the advancements in bioinformatic technology, an increasing number of circular RNAs (circRNAs) have been discovered and their crucial roles in the development and progression of various malignancies have been confirmed through multiple pathways. However, the specific mechanisms involving protein-binding circRNAs in colorectal cancer (CRC) remain largely unexplored. METHODS Differential circRNA expression was assessed using a human circRNA microarray in five CRC tissue and paired normal samples. CircGPRC5A expression was then confirmed in the CRC tissues and paired normal samples using qRT-PCR. The biological function of circGPRC5A in CRC were studied in vitro and in vivo. Western blotting, fluorescence in situ hybridization, immunofluorescence, RNA pulldown, mass spectrometry, immunoprecipitation, quantitative phosphoproteomics, and RNA-binding protein immunoprecipitation assays were used to study circGPRC5A. RESULTS Our analysis revealed that circGPRC5A expression was higher in CRC tissues compared to normal tissues and was associated with tumor size, tumor stage and lymph node status. CircGPRC5A promoted CRC cell proliferation, migration, and metastasis in vitro and in vivo. CircGPRC5A could stabilize PPP1CA protein by inhibiting the binding between UBA1 and PPP1CA, and increasing YAP dephosphorylation. CONCLUSIONS Our study revealed that circGPRC5A plays an essential function in CRC progression by stabilizing PPP1CA protein and enhancing YAP dephosphorylation. CircGPRC5A could act as a novel and potential target for CRC.
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Affiliation(s)
- Zhenzhou Chen
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yidan Li
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kuan He
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jianguo Yang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qican Deng
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yajun Chen
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhongxue Fu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Yao Y, Chen C, Wang J, Xuan H, Chen X, Li Z, Yang F, Wang B, Lin S, Li S, Tang D, Gong L, Gao W. Circular RNA circATP9A promotes non-small cell lung cancer progression by interacting with HuR and by promoting extracellular vesicles-mediated macrophage M2 polarization. J Exp Clin Cancer Res 2023; 42:330. [PMID: 38049814 PMCID: PMC10696866 DOI: 10.1186/s13046-023-02916-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 11/27/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND CircRNA is recognized for its significant regulatory function across various cancers. However, its regulatory role in non-small cell lung cancer (NSCLC) is still largely uncharted. METHODS Analysis based on public databases is completed using R software. circATP9A was identified by two circRNA datasets of NSCLC from the Gene Expression Omnibus database. To examine the impact of circATP9A on the phenotype of NSCLC, we conducted both in vitro and in vivo functional experiments. The mRNA and protein levels of specific molecules were determined through quantitative real-time PCR and western blot assays. RNA pulldown and RNA immunoprecipitation assays were performed to verify the interaction between RNA and protein. The functional role of extracellular vesicles (EVs)-circATP9A on tumor-associated macrophage (TAM) polarization was assessed using co-culture system and cell flow cytometry. RESULTS Here, we elucidates the functional role of circATP9A in NSCLC. We demonstrated that circATP9A can foster the progression of NSCLC through in vivo and in vitro experiments. From a mechanistic standpoint, circATP9A can interact with the HuR protein to form an RNA-protein complex, subsequently amplifying the mRNA and protein levels of the target gene NUCKS1. Further, the PI3K/AKT/mTOR signaling was identified as the downstream pathways of circATP9A/HuR/NUCKS1 axis. More notably, hnRNPA2B1 can mediate the incorporation of circATP9A into EVs. Subsequently, these EVs containing circATP9A induce the M2 phenotype of TAMs, thereby facilitating NSCLC development. CONCLUSIONS Our discoveries indicate that circATP9A could serve as a promising diagnostic indicator and a therapeutic target for NSCLC.
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Affiliation(s)
- Yuanshan Yao
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Chunji Chen
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Jing Wang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Haojie Xuan
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Xiuxiu Chen
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Zheng Li
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Fuzhi Yang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Bin Wang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Siyun Lin
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Saitian Li
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Dongfang Tang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China
| | - Libao Gong
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong Province, China
| | - Wen Gao
- Department of Thoracic Surgery, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital Affiliated to Fudan University, Shanghai, 200041, China.
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Ren A, Gong F, Liu G, Fan W. NR1H4-mediated circRHOBTB3 modulates the proliferation, metastasis, and Warburg effects of cervical cancer through interacting with IGF2BP3. Mol Cell Biochem 2023; 478:2671-2681. [PMID: 36939994 DOI: 10.1007/s11010-023-04692-5] [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: 03/13/2022] [Accepted: 02/25/2023] [Indexed: 03/21/2023]
Abstract
Globally, cervical cancer (CC) ranks as the fourth most common cancer and the most lethal malignancy among females of reproductive age. The incidence of CC is increasing in low-income countries, with unsatisfactory outcomes and long-term survival for CC patients. Circular RNAs (CircRNAs) are promising therapeutics that target multiple cancers. In this study, we investigated the tumorigenic role of circRHOBTB3 in CC, showing that circRHOBTB3 is highly expressed in CC cells and circRHOBTB3 knockdown also repressed CC proliferation, migration, invasion, and the Warburg effects. CircRHOBTB3 interacted with the RNA-binding protein, IGF2BP3, to stabilize its expression in CC cells and is putatively transcriptionally regulated by NR1H4. In conclusion, this novel NR1H4/circRHOBTB3/IGF2BP3 axis may provide new insights into CC pathogenesis.
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Affiliation(s)
- Ailing Ren
- Department of Gynecology, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, China
| | - Fan Gong
- Department of Clinical Laboratory, Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, 610072, China
| | - Guokun Liu
- Outpatient Department, Huai'an Second People's Hospital, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
| | - Wenli Fan
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Li W, Li X, Gao Y, Xiong C, Tang Z. Emerging roles of RNA binding proteins in intervertebral disc degeneration and osteoarthritis. Orthop Surg 2023; 15:3015-3025. [PMID: 37803912 PMCID: PMC10694020 DOI: 10.1111/os.13851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 07/06/2023] [Accepted: 07/19/2023] [Indexed: 10/08/2023] Open
Abstract
The etiology of intervertebral disc degeneration (IDD) and osteoarthritis (OA) is complex and multifactorial. Both predisposing genes and environmental factors are involved in the pathogenesis of IDD and OA. Moreover, epigenetic modifications affect the development of IDD and OA. Dysregulated phenotypes of nucleus pulposus (NP) cells and OA chondrocytes, including apoptosis, extracellular matrix disruption, inflammation, and angiogenesis, are involved at all developmental stages of IDD and OA. RNA binding proteins (RBPs) have recently been recognized as essential post-transcriptional regulators of gene expression. RBPs are implicated in many cellular processes, such as proliferation, differentiation, and apoptosis. Recently, several RBPs have been reported to be associated with the pathogenesis of IDD and OA. This review briefly summarizes the current knowledge on the RNA-regulatory networks controlled by RBPs and their potential roles in the pathogenesis of IDD and OA. These initial findings support the idea that specific modulation of RBPs represents a promising approach for managing IDD and OA.
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Affiliation(s)
- Wen Li
- Department of EmergencyGeneral Hospital of Central Theater Command of PLAWuhanChina
| | - Xing‐Hua Li
- Department of EmergencyGeneral Hospital of Central Theater Command of PLAWuhanChina
| | - Yang Gao
- Department of OrthopaedicGeneral Hospital of Central Theater Command of PLAWuhanChina
| | - Cheng‐Jie Xiong
- Department of OrthopaedicGeneral Hospital of Central Theater Command of PLAWuhanChina
| | - Zhong‐Zhi Tang
- Department of EmergencyGeneral Hospital of Central Theater Command of PLAWuhanChina
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Zhou J, Jin S. Circ_0058063 Contributed to Oral Squamous Cell Carcinoma Development by Sponging miR-145 and Regulating PI3K/AKT Pathway. Mol Biotechnol 2023; 65:2049-2060. [PMID: 36928742 DOI: 10.1007/s12033-023-00715-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND Circular RNAs (circRNAs) are key regulators of oral squamous cell carcinoma (OSCC) progression. In this study, we aimed to clarify the regulatory roles of circ_0058063 and its effect on tumorigenesis in OSCC. METHODS Quantitative real-time polymerase chain reaction was conducted to determine the expression levels of microRNA (miR)-145-5p and circ_0058063 in OSCC. Cell viability, adhesion, migration, and epithelial-mesenchymal transition (EMT) of OSCC cells were assessed using cell counting kit-8, cell adhesion, and transwell assays. Western blotting was performed to determine the phosphoinositide 3-kinase (PI3K) and protein kinase B (AKT) phosphorylation levels. Xenograft tumor models were constructed to evaluate the tumorigenicity of OSCC cells in vivo. In addition, the interaction between circ_0058063 and miR-145-5p was validated via luciferase reporter and RNA immunoprecipitation assays. RESULTS Expression levels of circ_0058063 were elevated, whereas those of miR-145-5p were decreased in OSCC. Upregulation of circ_0058063 levels enhanced the viability, adhesion, migration, and EMT of OSCC cells in vitro and promoted tumorigenicity in vivo. Moreover, circ_0058063 promoted OSCC growth by upregulating the PI3K and AKT phosphorylation levels. miR-145-5p overexpression considerably inhibited the PI3K/AKT pathway and decreased OSCC cell viability, adhesion, migration, and EMT. Mechanistically, circ_0058063 sponged miR-145-5p and activated the PI3K/AKT pathway in OSCC cells. CONCLUSION Our results revealed that circ_0058063 functions as an oncogene via regulation of the PI3K/AKT pathway by targeting miR-145-5p in OSCC, suggesting its potential for OSCC diagnosis and treatment.
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Affiliation(s)
- Jie Zhou
- Department of Stomatology, Wuhan Fourth Hospital, No. 473, Hanzheng Street, Qiaokou District, Wuhan, 430030, Hubei, China
| | - Song Jin
- Department of Stomatology, Wuhan Fourth Hospital, No. 473, Hanzheng Street, Qiaokou District, Wuhan, 430030, Hubei, China.
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Luo Q, Li J, Miao H, Su S, Chen Y, Xu C, Zhao C, Huang J, Ling K, Lin C, Yan H, Zhang S. circSSPO boosts growth of esophageal squamous cell carcinoma through upregulation of micrRNA-6820-5p-mediated KLK8 and PKD1 expression. Cell Biol Toxicol 2023; 39:3219-3234. [PMID: 37812360 DOI: 10.1007/s10565-023-09828-3] [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: 01/31/2023] [Accepted: 08/13/2023] [Indexed: 10/10/2023]
Abstract
Investigation on a competitive endogenous RNA (ceRNA) network attracted lots of attention due its function in cancer regulation. Here, we probed into the possible molecular mechanism of circSSPO/microRNA-6820-5p (miR-6820-5p)/kallikrein-related peptidase 8 (KLK8)/PKD1 network in the esophageal squamous cell carcinoma (ESCC). Following whole-transcriptome sequencing and differential analysis in collected ESCC tissue samples, circRNA-miRNA-mRNA regulatory network affecting ESCC was investigated. After interaction measurement among circSSPO/miR-6820-5p/KLK8/PKD1, their regulatory roles in ESCC cell functions in vitro and xenograft tumor growth and lung metastasis in vivo were analyzed. The bioinformatics prediction and sequencing results screened that circSSPO, miR-6820-5p, KLK8, and PKD1 were associated with ESCC development. In ESCC, miR-6820-5p was expressed at very low levels, while circSSPO, KLK8, and PKD1 were highly expressed. In vitro cell experiments further proved that circSSPO competitively inhibited miR-6820-5p to induce ESCC cell malignant properties. Moreover, knockdown of KLK8 or PKD1 inhibited ESCC cell malignant properties. circSSPO also promoted the tumorigenic and metastasis of ESCC through the upregulation of KLK8 and PKD1 expression in vivo. We found that circSSPO was an oncogenic circRNA that was significantly abundant in ESCC tissues and circSSPO exhibited an oncogenic activity in ESCC by elevating expression of KLK8 and PKD1 through suppressing miR-6820-5p expression.
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Affiliation(s)
- Qianhua Luo
- Clinical Pharmacy Research Center, Shantou University Medical College, Shantou, 515041, People's Republic of China
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), No. 396, Tongfuzhong Road, Haizhu District, Guangzhou, 510220, People's Republic of China
| | - Junzheng Li
- Department of Otolaryngology-Head and Neck Surgery, Zhujiang Hospital of Southern Medical University, Guangzhou, 510280, China
| | - Haixiong Miao
- Department of Orthopaedics, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), Guangzhou, 510220, People's Republic of China
| | - Siman Su
- Clinical Pharmacy Research Center, Shantou University Medical College, Shantou, 515041, People's Republic of China
| | - Yun Chen
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), No. 396, Tongfuzhong Road, Haizhu District, Guangzhou, 510220, People's Republic of China
| | - Chengcheng Xu
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), No. 396, Tongfuzhong Road, Haizhu District, Guangzhou, 510220, People's Republic of China
| | - Chengkuan Zhao
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), No. 396, Tongfuzhong Road, Haizhu District, Guangzhou, 510220, People's Republic of China
| | - Jianxiang Huang
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), No. 396, Tongfuzhong Road, Haizhu District, Guangzhou, 510220, People's Republic of China
| | - Kai Ling
- Clinical Pharmacy Research Center, Shantou University Medical College, Shantou, 515041, People's Republic of China
| | - Chaoxian Lin
- Clinical Pharmacy Research Center, Shantou University Medical College, Shantou, 515041, People's Republic of China.
- Shantou Chaonan Minsheng Hospital, Shantou, 515144, People's Republic of China.
| | - Hongfei Yan
- Department of Pathology, Cancer Hospital of Shantou University Medical College, Shantou, 515031, People's Republic of China.
| | - Shuyao Zhang
- Clinical Pharmacy Research Center, Shantou University Medical College, Shantou, 515041, People's Republic of China.
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), No. 396, Tongfuzhong Road, Haizhu District, Guangzhou, 510220, People's Republic of China.
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Samavarchi Tehrani S, Goodarzi G, Panahi G, Maniati M, Meshkani R. Multiple novel functions of circular RNAs in diabetes mellitus. Arch Physiol Biochem 2023; 129:1235-1249. [PMID: 34087083 DOI: 10.1080/13813455.2021.1933047] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022]
Abstract
Circular RNAs (circRNAs), as an emerging group of non-coding RNAs (ncRNAs), have received the attention given evidence indicating that these novel ncRNAs are implicated in various biological processes. Due to the absence of 5' and 3' ends in circ-RNAs, their two ends are covalently bonded together, and they are synthesised from pre-mRNAs in a process called back-splicing, which makes them more stable than linear RNAs. There is accumulating evidence showing that circRNAs play a critical role in the pathogenesis of diabetes mellitus (DM). Moreover, it has been indicated that dysregulation of circRNAs has made them promising diagnostic biomarkers for the detection of DM. Recently, increasing attention has been paid to investigate the mechanisms underlying the DM process. It has been demonstrated that there is a strong correlation between the expression of circRNAs and DM. Hence, our aim is to discuss the crosstalk between circRNAs and DM and its complications.
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Affiliation(s)
- Sadra Samavarchi Tehrani
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Golnaz Goodarzi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Student Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghodratollah Panahi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Maniati
- English Department, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Reza Meshkani
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Hu G, Lin C, Gao K, Chen M, Long F, Tian B. Exosomal circCOL1A1 promotes angiogenesis via recruiting EIF4A3 protein and activating Smad2/3 pathway in colorectal cancer. Mol Med 2023; 29:155. [PMID: 37940881 PMCID: PMC10633966 DOI: 10.1186/s10020-023-00747-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 10/25/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is the third frequently diagnosed cancer with high incidence and mortality rate worldwide. Our previous report has demonstrated that circCOL1A1 (hsa_circ_0044556) functions as an oncogene in CRC, and Gene Ontology (GO) analysis has also revealed the strong association between circCOL1A1 and angiogenesis. However, the mechanism of circCOL1A1 or exosomal circCOL1A1 in CRC angiogenesis remains elusive. METHODS Purified exosomes from CRC cells were characterized by nanoparticle tracking analyzing, electron microscopy and western blot. qRT-PCR, immunohistochemistry or western blot were employed to test the expression of circCOL1A1, EIF4A3, Smad pathway and angiogenic markers. Cell proliferation of HUVECs was monitored by CCK-8 assay. The migratory and angiogenic capabilities of HUVECs were detected by wound healing and tube formation assay, respectively. Bioinformatics analysis, RNA immunoprecipitation (RIP), RNA pull-down and FISH assays were used to detect the interactions among circCOL1A1, EIF4A3 and Smad2/3 mRNA. The in vitro findings were verified in xenograft model. RESULTS CRC cell-derived exosomal circCOL1A1 promoted angiogenesis of HUVECs via recruiting EIF4A3. EIF4A3 was elevated in CRC tissues, and it stimulated angiogenesis of HUVECs through directly binding and stabilizing Smad2/3 mRNA. Moreover, exosomal circCOL1A1 promoted angiogenesis via inducing Smad2/3 signaling pathway in vitro, and it also accelerated tumor growth and angiogenesis in vivo. CONCLUSION CRC cell-derived exosomal circCOL1A1 promoted angiogenesis via recruiting EIF4A3 and activating Smad2/3 signaling.
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Affiliation(s)
- Gui Hu
- Department of Gastrointestinal Surgery, the Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, 410013, Hunan Province, P.R. China
| | - Changwei Lin
- Department of Gastrointestinal Surgery, the Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, 410013, Hunan Province, P.R. China
| | - Kai Gao
- Department of Gastrointestinal Surgery, the Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, 410013, Hunan Province, P.R. China
| | - Miao Chen
- Department of Gastrointestinal Surgery, the Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, 410013, Hunan Province, P.R. China
| | - Fei Long
- Department of Gastrointestinal Surgery, the Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, 410013, Hunan Province, P.R. China
| | - Buning Tian
- Department of Gastrointestinal Surgery, the Third Xiangya Hospital of Central South University, No. 138, Tongzipo Road, Changsha, 410013, Hunan Province, P.R. China.
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Hao Q, Zhang M, Wu Y, Guo Y, Zheng Y, Wu L, Feng L, Wang Z. Hsa_circRNA_001676 accelerates the proliferation, migration and stemness in colorectal cancer through regulating miR-556-3p/G3BP2 axis. Sci Rep 2023; 13:18353. [PMID: 37884630 PMCID: PMC10603078 DOI: 10.1038/s41598-023-45164-6] [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: 07/10/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Circular RNAs (circRNAs) play key roles in colorectal cancer (CRC) progression, but little is known about the biological functions of hsa_circRNA_001676 in CRC. Therefore, we explored the potential role of hsa_circRNA_001676 in CRC development. RT-qPCR was performed to determine hsa_circRNA_001676, miR-556-3p and Ras-GTPase-activating SH3 domain-binding-proteins 2 (G3BP2) levels in CRC tissues. Meanwhile, to evaluate the roles of hsa_circRNA_001676, miR-556-3p and G3BP2 on CRC, functional analysis of cell proliferation, migration and stemness were then performed. Our results showed that compared to normal tissues, hsa_circRNA_001676 and G3BP2 level was elevated, but miR-556-3p level was reduced in CRC tissues. Additionally, luciferase reporter results showed that hsa_circRNA_001676 was shown to target miR-556-3p, and G3BP2 was targeted by miR-556-3p. Hsa_circRNA_001676 or G3BP2 overexpression promoted CRC cell proliferation and migration. Conversely, miR-556-3p overexpression suppressed CRC cell proliferation and migration. Moreover, deficiency of hsa_circRNA_001676 or G3BP2 repressed the CRC cell proliferation, migration and stemness. Meanwhile, hsa_circRNA_001676 deficiency obviously reduced tumor growth and stemness in a CRC mouse xenograft model. Furthermore, hsa_circRNA_001676 deficiency notably reduced G3BP2 level, but elevated miR-556-3p level in tumor tissues from tumor-bearing mice. Mechanistically, hsa_circRNA_001676 targeted miR-556-3p to increase G3BP2 level, contributing to the progression of CRC. Collectively, hsa_circRNA_001676 was able to accelerate proliferation, migration and stemness in CRC through regulating miR-556-3p/G3BP2 axis, suggesting that hsa_circRNA_001676 may become a potential therapeutic target in treating CRC.
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Affiliation(s)
- Qin Hao
- Department of Gastrointestinal Surgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010051, China
| | - Miao Zhang
- Graduate School, Inner Mongolia Medical University, Hohhot, 010010, China
| | - Yingcai Wu
- The Laboratory for Tumor Molecular Diagnosis, Peking University Cancer Hospital (Inner Mongolia Campus)/Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, 010020, China
| | - Yuchen Guo
- The Laboratory for Tumor Molecular Diagnosis, Peking University Cancer Hospital (Inner Mongolia Campus)/Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, 010020, China
| | - Yanling Zheng
- Graduate School, Inner Mongolia Medical University, Hohhot, 010010, China
| | - Lijuan Wu
- Graduate School, Inner Mongolia Medical University, Hohhot, 010010, China
| | - Li Feng
- Department A of Abdominal surgery, Peking University Cancer Hospital (Inner Mongolia Campus)/Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, 010020, China.
| | - Zhenfei Wang
- The Laboratory for Tumor Molecular Diagnosis, Peking University Cancer Hospital (Inner Mongolia Campus)/Affiliated Cancer Hospital of Inner Mongolia Medical University, Hohhot, 010020, China.
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Zhu Q, Hu Y, Jiang W, Ou ZL, Yao YB, Zai HY. Circ-CCT2 Activates Wnt/β-catenin Signaling to Facilitate Hepatoblastoma Development by Stabilizing PTBP1 mRNA. Cell Mol Gastroenterol Hepatol 2023; 17:175-197. [PMID: 37866478 PMCID: PMC10758885 DOI: 10.1016/j.jcmgh.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 10/24/2023]
Abstract
BACKGROUND & AIMS Circ-CCT2 (hsa_circ_0000418) is a novel circular RNA that stems from the CCT2 gene. However, the expression of circ-CCT2 and its roles in hepatoblastoma are unknown. Our study aims to study the circ-CCT2 roles in hepatoblastoma development. METHODS Hepatoblastoma specimens were collected for examining the expression of circ-CCT2, TAF15, and PTBP1. CCK-8 and colony formation assays were applied for cell proliferation analysis. Migratory and invasive capacities were evaluated through wound healing and Transwell assays. The interaction between circ-CCT2, TAF15, and PTBP1 was validated by fluorescence in situ hybridization, RNA pull-down, and RNA immunoprecipitation. SKL2001 was used as an agonist of the Wnt/β-catenin pathway. A subcutaneous mouse model of hepatoblastoma was established for examining the function of circ-CCT2 in hepatoblastoma in vivo. RESULTS Circ-CCT2 was significantly up-regulated in hepatoblastoma. Overexpression of circ-CCT2 activated Wnt/β-catenin signaling and promoted hepatoblastoma progression, whereas knockdown of circ-CCT2 exerted opposite effects. Moreover, both TAF15 and PTBP1 were up-regulated in hepatoblastoma tissues and cells. TAF15 was positively correlated with the expression of circ-CCT2 and PTBP1 in hepatoblastoma. Furthermore, circ-CCT2 recruited and up-regulated TAF15 protein to stabilize PTBP1 mRNA and trigger Wnt/β-catenin signaling in hepatoblastoma. Overexpression of TAF15 or PTBP1 reversed knockdown of circ-CCT2-mediated suppression of hepatoblastoma progression. SKL2001-mediated activation of Wnt/β-catenin signaling reversed the anti-tumor effects of silencing of circ-CCT2, TAF15, or PTBP1. CONCLUSIONS Circ-CCT2 stabilizes PTBP1 mRNA and activates Wnt/β-catenin signaling through recruiting and up-regulating TAF15 protein, thus promoting hepatoblastoma progression. Our findings deepen the understanding of hepatoblastoma pathogenesis and suggest potential therapeutic targets.
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Affiliation(s)
- Qin Zhu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, P.R. China
| | - Yu Hu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, P.R. China
| | - Wei Jiang
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, P.R. China
| | - Zheng-Lin Ou
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, P.R. China
| | - Yuan-Bing Yao
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, P.R. China
| | - Hong-Yan Zai
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, P.R. China.
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Chen X, Xu Y, Zhou Z, Zhao P, Zhou Z, Wang F, Zhong F, Du H. CircUSP10 promotes liver cancer progression by regulating miR-211-5p/TCF12/EMT signaling pathway. Heliyon 2023; 9:e20649. [PMID: 37829805 PMCID: PMC10565698 DOI: 10.1016/j.heliyon.2023.e20649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/22/2023] [Accepted: 10/03/2023] [Indexed: 10/14/2023] Open
Abstract
There is no precise diagnosis or prognosis for liver cancer (LC) using a single biomarker. Circular RNAs (circRNAs) contribute to the pathogenesis of different cancers, but their role in LC is not entirely understood. In this study, circUSP10, an aberrantly expressed circRNA in LC, was screened using the Gene Expression Omnibus database, and its tissue-specific expression was verified using qRT-PCR. In vitro, functional assays and nude mouse tumorigenesis models were used to investigate circUSP10 role in LC. RNA immunoprecipitation and dual-luciferase reporter assays were performed to study the mechanistic relationship between circUSP10, miR-211-5p, and transcription factor 12 (TCF12). We found that circUSP10 expression was upregulated in LC tissues and cells. CircUSP10 expression was linked to tumor size and tumor node metastasis stage and negatively correlated with LC prognosis. In vitro assays confirmed circUSP10-mediated proliferation, migration, and invasion of LC cells and their association with the epithelial-mesenchymal transition (EMT) pathway. Mechanistically, circUSP10 adsorbed miR-211-5p, which regulated TCF12 and promoted tumorigenesis via the EMT signaling pathway. Therefore, our results suggest that circUSP10 may promote LC progression by modulating the miR-211-5p/TCF12/EMT signaling cascade and may serve as a potential biomarker for LC diagnosis and prognosis.
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Affiliation(s)
- Xiang Chen
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Department of Laboratory Medicine, Nantong First People's Hospital and The Second Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Yao Xu
- Department of Laboratory Medicine, Nantong First People's Hospital and The Second Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Zhengyang Zhou
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Ping Zhao
- Department of Laboratory Medicine, Nantong First People's Hospital and The Second Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Zhou Zhou
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Feng Wang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Fengyun Zhong
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Hong Du
- Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Nappi F, Alzamil A, Avtaar Singh SS, Spadaccio C, Bonnet N. Current Knowledge on the Interaction of Human Cytomegalovirus Infection, Encoded miRNAs, and Acute Aortic Syndrome. Viruses 2023; 15:2027. [PMID: 37896804 PMCID: PMC10611417 DOI: 10.3390/v15102027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/21/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
Aortic dissection is a clinicopathological entity caused by rupture of the intima, leading to a high mortality if not treated. Over time, diagnostic and investigative methods, antihypertensive therapy, and early referrals have resulted in improved outcomes according to registry data. Some data have also emerged from recent studies suggesting a link between Human Cytomegalovirus (HCMV) infection and aortic dissection. Furthermore, the use of microRNAs has also become increasingly widespread in the literature. These have been noted to play a role in aortic dissections with elevated levels noted in studies as early as 2017. This review aims to provide a broad and holistic overview of the role of miRNAs, while studying the role of HCMV infection in the context of aortic dissections. The roles of long non-coding RNAs, circular RNAs, and microRNAs are explored to identify changes in expression during aortic dissections. The use of such biomarkers may one day be translated into clinical practice to allow early detection and prognostication of outcomes and drive preventative and therapeutic options in the future.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France; (A.A.); (N.B.)
| | - Almothana Alzamil
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France; (A.A.); (N.B.)
| | | | - Cristiano Spadaccio
- Department of Cardiothoracic Surgery, Mayo Clinic, Rochester, Rochester, MN 55905, USA;
| | - Nicolas Bonnet
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France; (A.A.); (N.B.)
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Zhang J, Zhang H, Ju Z, Peng Y, Pan Y, Xi W, Wei Y. JCcirc: circRNA full-length sequence assembly through integrated junction contigs. Brief Bioinform 2023; 24:bbad363. [PMID: 37833842 DOI: 10.1093/bib/bbad363] [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: 07/31/2023] [Revised: 09/04/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Recent studies have shed light on the potential of circular RNA (circRNA) as a biomarker for disease diagnosis and as a nucleic acid vaccine. The exploration of these functionalities requires correct circRNA full-length sequences; however, existing assembly tools can only correctly assemble some circRNAs, and their performance can be further improved. Here, we introduce a novel feature known as the junction contig (JC), which is an extension of the back-splice junction (BSJ). Leveraging the strengths of both BSJ and JC, we present a novel method called JCcirc (https://github.com/cbbzhang/JCcirc). It enables efficient reconstruction of all types of circRNA full-length sequences and their alternative isoforms using splice graphs and fragment coverage. Our findings demonstrate the superiority of JCcirc over existing methods on human simulation datasets, and its average F1 score surpasses CircAST by 0.40 and outperforms both CIRI-full and circRNAfull by 0.13. For circRNAs below 400 bp, 400-800 bp, 800 bp-1200 bp and above 1200 bp, the correct assembly rates are 0.13, 0.09, 0.04 and 0.03 higher, respectively, than those achieved by existing methods. Moreover, JCcirc also outperforms existing assembly tools on other five model species datasets and real sequencing datasets. These results show that JCcirc is a robust tool for accurately assembling circRNA full-length sequences, laying the foundation for the functional analysis of circRNAs.
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Affiliation(s)
- Jingjing Zhang
- University of Chinese Academy of Sciences, Beijing, China
- Shenzhen Key Laboratory of Intelligent Bioinformatics & Center for High Performance Computing, Shenzhen Institute of Advanced Technology, CAS, Shenzhen, China
| | - Huiling Zhang
- College of Mathematics and Information, South China Agriculture University, Guangzhou, China
| | - Zhen Ju
- University of Chinese Academy of Sciences, Beijing, China
- Shenzhen Key Laboratory of Intelligent Bioinformatics & Center for High Performance Computing, Shenzhen Institute of Advanced Technology, CAS, Shenzhen, China
| | - Yin Peng
- Guangdong Key Laboratory for Genome Stability and Disease Prevention and Regional Immunity and Diseases, Department of Pathology, Shenzhen University School of Medicine, Shenzhen, China
| | - Yi Pan
- Shenzhen Key Laboratory of Intelligent Bioinformatics & Center for High Performance Computing, Shenzhen Institute of Advanced Technology, CAS, Shenzhen, China
| | - Wenhui Xi
- Shenzhen Key Laboratory of Intelligent Bioinformatics & Center for High Performance Computing, Shenzhen Institute of Advanced Technology, CAS, Shenzhen, China
| | - Yanjie Wei
- Shenzhen Key Laboratory of Intelligent Bioinformatics & Center for High Performance Computing, Shenzhen Institute of Advanced Technology, CAS, Shenzhen, China
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