1
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Chang J, Zhang L, Li Z, Qian C, Du J. Exosomal non-coding RNAs (ncRNAs) as potential biomarkers in tumor early diagnosis. Biochim Biophys Acta Rev Cancer 2024; 1879:189188. [PMID: 39313040 DOI: 10.1016/j.bbcan.2024.189188] [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: 06/13/2024] [Revised: 09/19/2024] [Accepted: 09/19/2024] [Indexed: 09/25/2024]
Abstract
Exosomes, extracellular vesicles carrying a cargo rich in various non-coding RNAs (ncRNAs), have emerged as crucial mediators of intercellular communication. Their stability, abundance, and specificity make exosomal ncRNAs promising candidates for biomarker discovery. The discovery of exosomal ncRNAs has unveiled a novel avenue for the exploration of biomarkers in tumor early diagnosis. This review consolidates current knowledge on the role of exosomal ncRNAs as potential biomarkers in the early detection of various tumors. We provide an overview of recent studies demonstrating the diagnostic potential of exosomal ncRNAs across multiple cancer types, highlighting their sensitivity, specificity, and feasibility for early detection. This review underscores the potential of exosomal ncRNAs as non-invasive biomarkers for early tumor diagnosis, paving the way for improved clinical outcomes through timely intervention and personalized management strategies.
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Affiliation(s)
- Jingyue Chang
- School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China
| | - Lingquan Zhang
- School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China
| | - Zeting Li
- School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China
| | - Chungen Qian
- Department of Reagent Research and Development, Shenzhen YHLO Biotech Co., Ltd., Shenzhen 518172, Guangdong, China.
| | - Juan Du
- School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China; The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China.
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2
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Sharma A, Bansal C, Sharma KL, Kumar A. Circular RNA: The evolving potential in the disease world. World J Med Genet 2024; 12:93011. [DOI: 10.5496/wjmg.v12.i1.93011] [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: 02/15/2024] [Revised: 05/23/2024] [Accepted: 07/02/2024] [Indexed: 09/19/2024] Open
Abstract
Circular RNAs (circRNAs), a new star of noncoding RNAs, are a group of endogenous RNAs that form a covalently closed circle and occur widely in the mammalian genome. Most circRNAs are conserved throughout species and frequently show stage-specific expression during various stages of tissue development. CircRNAs were a mystery discovery, as they were initially believed to be a product of splicing errors; however, subsequent research has shown that circRNAs can perform various functions and help in the regulation of splicing and transcription, including playing a role as microRNA (miRNA) sponges. With the application of high throughput next-generation technologies, circRNA hotspots were discovered. There are emerging indications that explain the association of circRNAs with human diseases, like cancers, developmental disorders, and inflammation, and circRNAs may be a new potential biomarker for the diagnosis and treatment outcome of various diseases, including cancer. After the discoveries of miRNAs and long noncoding RNAs, circRNAs are now acting as a novel research entity of interest in the field of RNA disease biology. In this review, we aim to focus on major updates on the biogeny and metabolism of circRNAs, along with their possible/established roles in major human diseases.
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Affiliation(s)
- Aarti Sharma
- Department of Research, Mayo Clinic Arizona, Phoenix, AZ 85054, United States
| | - Cherry Bansal
- Department of Pathology, Dr. S Tantia Medical College, Hospital and Research Center, Sri Ganganagar 335002, Rajasthan, India
| | - Kiran Lata Sharma
- Department of Pathology, Baylor College of Medicine, Houston, TX 77030, United States
| | - Ashok Kumar
- Department of Surgical Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow 226014, Uttar Pradesh, India
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3
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Conn VM, Chinnaiyan AM, Conn SJ. Circular RNA in cancer. Nat Rev Cancer 2024; 24:597-613. [PMID: 39075222 DOI: 10.1038/s41568-024-00721-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/13/2024] [Indexed: 07/31/2024]
Abstract
Over the past decade, circular RNA (circRNA) research has evolved into a bona fide research field shedding light on the functional consequence of this unique family of RNA molecules in cancer. Although the method of formation and the abundance of circRNAs can differ from their cognate linear mRNA, the spectrum of interacting partners and their resultant cellular functions in oncogenesis are analogous. However, with 10 times more diversity in circRNA variants compared with linear RNA variants, combined with their hyperstability in the cell, circRNAs are equipped to influence every stage of oncogenesis. This is an opportune time to address the breadth of circRNA in cancer focused on their spatiotemporal expression, mutations in biogenesis factors and contemporary functions through each stage of cancer. In this Review, we highlight examples of functional circRNAs in specific cancers, which satisfy critical criteria, including their physical co-association with the target and circRNA abundance at stoichiometrically valid quantities. These considerations are essential to develop strategies for the therapeutic exploitation of circRNAs as biomarkers and targeted anticancer agents.
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Affiliation(s)
- Vanessa M Conn
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, South Australia, Australia
| | - Arul M Chinnaiyan
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, USA
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
- Howard Hughes Medical Institute, University of Michigan, Ann Arbor, MI, USA
- Department of Urology, University of Michigan, Ann Arbor, MI, USA
| | - Simon J Conn
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, South Australia, Australia.
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4
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Liang X, Long L, Guan F, Xu Z, Huang H. Research status and potential applications of circRNAs affecting colorectal cancer by regulating ferroptosis. Life Sci 2024; 352:122870. [PMID: 38942360 DOI: 10.1016/j.lfs.2024.122870] [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: 03/11/2024] [Revised: 06/20/2024] [Accepted: 06/23/2024] [Indexed: 06/30/2024]
Abstract
Ferroptosis is an emerging form of non-apoptotic programmed cell death (PCD), characterized by iron-mediated oxidative imbalance. This process plays a significant role in the development and progression of various tumors, including colorectal cancer, gastric cancer, and others. Circular RNA (circRNA) is a stable, non-coding RNA type with a single-stranded, covalently closed loop structure, which is intricately linked to the proliferation, invasion, and metastasis of tumor cells. Recent studies have shown that many circRNAs regulate various pathways leading to cellular ferroptosis. Colorectal cancer, known for its high incidence and mortality among cancers, is marked by a poor prognosis and pronounced chemoresistance. To enhance our understanding of how circRNA-mediated regulation of ferroptosis influences colorectal cancer development, this review systematically examines the mechanisms by which specific circRNAs regulate ferroptosis and their critical role in the progression of colorectal cancer. Furthermore, it explores the potential of circRNAs as biomarkers and therapeutic targets in colorectal cancer treatment, offering a novel approach to clinical management.
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Affiliation(s)
- Xiyuan Liang
- School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Linna Long
- Department of Histology & Embryology, Xiangya School of Medicine, Central South University, Changsha 410013, China
| | - Fan Guan
- School of Basic Medical Science, Central South University, Changsha 410013, China
| | - Zilu Xu
- School of Basic Medical Science, Central South University, Changsha 410013, China
| | - He Huang
- Department of Histology & Embryology, Xiangya School of Medicine, Central South University, Changsha 410013, China.
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5
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Xue X, Pan Y, Li C. Circ_TMCO3 Inhibits the Progression of Cervical Cancer by Activating FRMD6 Expression by Restraining miR-1291. Reprod Sci 2024; 31:2641-2653. [PMID: 38700824 DOI: 10.1007/s43032-024-01549-0] [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: 01/21/2024] [Accepted: 04/04/2024] [Indexed: 09/14/2024]
Abstract
Cervical cancer (CC) is one of the most common cancers that threaten the life of women. More and more circular RNAs (circRNAs) have been found to be maladjusted in tumor tissues. However, the mechanism of circ_TMCO3 in CC needs to be studied. In this study, quantitative real-time polymerase chain reaction (qRT-PCR), western blot, and immunohistochemistry (IHC) were used to detect the expressions of circ_TMCO3, miR-1291, and FERM domain-containing protein 6 (FRMD6). Cell viability, proliferation, apoptosis, migration, invasion, and protein level were detected via 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT), 5-Ethynyl-2'-deoxyuridine (EdU), flow cytometry, transwell and western blot, respectively. The glycolysis level was detected via specific kits. Dual-luciferase activity assay was used to analyze the targeted relationship between miR-1291 and circ_TMCO3 or FRMD6. Xenograft models were used to analyze the effect of circ_TMCO3 on the growth of CC tumors in vivo. Circ_TMCO3 and FRMD6 were low expressed in tumor tissues, and miR-1291 was conspicuously upregulated in tumor tissues. Upregulation of circ_TMCO3 dramatically curbed cell viability, proliferation, migration, and invasion, and enhanced cell apoptosis, while those effects were attenuated after the overexpression of miR-1291. MiR-1291 could directly target FRMD6, and knockdown of FRMD6 could restore the inhibitory effect of miR-1291 silencing on tumor cell growth. In terms of mechanism, circ_TMCO3 was confirmed as a miR-1291 sponge to regulate the expression of FRMD6. Tumor growth was markedly retarded with the overexpression of circ_TMCO3. In conclusion, circ_TMCO3 inhibited tumorigenicity of CC via miR-1291/FRMD6 axis, providing a potential therapeutic strategy for CC patients.
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Affiliation(s)
- Xue Xue
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Yanta District, Xi'an, 710061, Shaanxi, China
| | - Yixia Pan
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Yanta District, Xi'an, 710061, Shaanxi, China
| | - Chen Li
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Yanta District, Xi'an, 710061, Shaanxi, China.
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6
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Hama Faraj GS, Hussen BM, Abdullah SR, Fatih Rasul M, Hajiesmaeili Y, Baniahmad A, Taheri M. Advanced approaches of the use of circRNAs as a replacement for cancer therapy. Noncoding RNA Res 2024; 9:811-830. [PMID: 38590433 PMCID: PMC10999493 DOI: 10.1016/j.ncrna.2024.03.012] [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: 12/14/2023] [Revised: 03/18/2024] [Accepted: 03/29/2024] [Indexed: 04/10/2024] Open
Abstract
Cancer is a broad name for a group of diseases in which abnormal cells grow out of control and are characterized by their complexity and recurrence. Although there has been progress in cancer therapy with the entry of precision medicine and immunotherapy, cancer incidence rates have increased globally. Non-coding RNAs in the form of circular RNAs (circRNAs) play crucial roles in the pathogenesis, clinical diagnosis, and therapy of different diseases, including cancer. According to recent studies, circRNAs appear to serve as accurate indicators and therapeutic targets for cancer treatment. However, circRNAs are promising candidates for cutting-edge cancer therapy because of their distinctive circular structure, stability, and wide range of capabilities; many challenges persist that decrease the applications of circRNA-based cancer therapeutics. Here, we explore the roles of circRNAs as a replacement for cancer therapy, highlight the main challenges facing circRNA-based cancer therapies, and discuss the key strategies to overcome these challenges to improve advanced innovative therapies based on circRNAs with long-term health effects.
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Affiliation(s)
- Goran Sedeeq Hama Faraj
- Department of Medical Laboratory Science, Komar University of Science and Technology, Sulaymaniyah, 46001, Iraq
| | - Bashdar Mahmud Hussen
- Department of Biomedical Sciences, College of Science, Cihan University-Erbil, Erbil, Kurdistan Region, 44001, Iraq
- Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, 44001, Iraq
| | - Snur Rasool Abdullah
- Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, 44001, Iraq
| | - Mohammed Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | | | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Xu J, Xu S, Liu W, Chen J, Cai L, Zhuang W. circTP63 promotes prostate cancer progression via miR-421/VAMP associated protein A axis. J Cancer 2024; 15:5451-5461. [PMID: 39247600 PMCID: PMC11375539 DOI: 10.7150/jca.99561] [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: 06/12/2024] [Accepted: 08/08/2024] [Indexed: 09/10/2024] Open
Abstract
Background: Circular RNAs (circRNA) have a vital role in the progression of cancers. For instance, circTP63 is upregulated in prostate cancer (PCa) tissues compared with adjacent normal tissues. However, the role of circTP63 in prostate cancer is still unclear. Methods: qRT-PCR assays were applied to detected the expression of circTP63 and miR-421 in PCa samples. Functionally, CCK-8, apoptosis assay, and transwell migration and invasion assays were used to explore the role of circTP63 in PCa progression. Mechanistically, the interaction between circTP63 and miR-421 were verified using qRT-PCR and dual-luciferase report assay. Western blot, qRT-PCR, and dual-luciferase report assay were applied to detect the interaction between miR-421 and VAMP associated protein A (VAPA). And xenograft animal model was used to detect the role of circTP63 in vivo. Results: circTP63 was upregulated and miR-421 was downregulated in PCa tissues. Functional assays revealed that circTP63 promoted the proliferation and metastasis of PCa cells in vitro. In addition, the inhibition effect of circTP63 knockdown could be rescued by miR-421 inhibition or VAPA overexpression. Mechanistically, circTP63-mediated PCa progression through directly binding to miR-421, and subsequently releasing the VAPA. In vivo, silencing of circTP63 significantly impaired PCa progression. Conclusion: In summary, our study identified circTP63 as an oncogenic circRNA, which could be a promising diagnostic and therapeutic target for PCa treatment.
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Affiliation(s)
- Jianfeng Xu
- Department of Urology, Jinjiang Municipal Hospital. No. 16, Luoshan Section, Jinguang Road, Luoshan Street, Jinjiang City, Quanzhou, Fujian, China
| | - Siwei Xu
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Weihui Liu
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Jiabi Chen
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Longbo Cai
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Wei Zhuang
- Department of Urology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
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8
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Yehui L, Zhihong L, Fang T, Zixuan Z, Mengyuan Z, Zhifang Y, Jiuhong Z. Bibliometric Analysis of Global Research on Circular RNA: Current Status and Future Directions. Mol Biotechnol 2024; 66:2064-2077. [PMID: 37587318 DOI: 10.1007/s12033-023-00830-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 07/13/2023] [Indexed: 08/18/2023]
Abstract
Circular RNAs (circRNAs) have gained significant attention in recent years. This bibliometric analysis aimed to provide insights into the current state and future trends of global circRNA research. The scientific output on circRNAs from 2010 to 2022 was retrieved from the Web of Science Core Collection with circRNA-related terms as the subjects. Key bibliometric indicators were calculated and evaluated using CiteSpace. A total of 7385 studies on circRNAs were identified. The output and citation number have increased rapidly after 2015. China, the USA, and Germany were top three publishing countries. Currently, circCDR1as, circHIPK3, circPVT1, circSHPRH, and circZNF609 are the most studied circRNAs; and all are related to cancer. The theme of research have shifted from transcript, exon circularization and miRNA sponge topics to the transcriptome, tumor suppressor, and biomarkers, indicating that research interests have evolved from basic to applied research. CircRNAs will continue to be a highly active research area in the near future. From the current understanding of circRNA characterization and regulatory mechanisms as miRNA sponges in cancer, future directions may examine potential diagnostic and therapeutic roles of circRNAs in cancers or the function and mechanism of circRNAs in other diseases.
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Affiliation(s)
- Lv Yehui
- Institute of Wound Prevention and Treatment, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Department of Human Anatomy and Histology, School of Fundamental Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Li Zhihong
- Institute of Wound Prevention and Treatment, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Department of Human Anatomy and Histology, School of Fundamental Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Tong Fang
- Department of Human Anatomy and Histology, School of Fundamental Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Department of Physiology and Biochemistry, School of Fundamental Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Zeng Zixuan
- Institute of Wound Prevention and Treatment, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Zhang Mengyuan
- Institute of Wound Prevention and Treatment, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Yang Zhifang
- Department of Human Anatomy and Histology, School of Fundamental Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Department of Physiology and Biochemistry, School of Fundamental Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Zhao Jiuhong
- Institute of Wound Prevention and Treatment, Shanghai University of Medicine and Health Sciences, Shanghai, China.
- Department of Human Anatomy and Histology, School of Fundamental Medicine, Shanghai University of Medicine and Health Sciences, Shanghai, China.
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9
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Hussen BM, Abdullah SR, Mohammed AA, Rasul MF, Hussein AM, Eslami S, Glassy MC, Taheri M. Advanced strategies of targeting circular RNAs as therapeutic approaches in colorectal cancer drug resistance. Pathol Res Pract 2024; 260:155402. [PMID: 38885593 DOI: 10.1016/j.prp.2024.155402] [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: 02/21/2024] [Revised: 06/03/2024] [Accepted: 06/09/2024] [Indexed: 06/20/2024]
Abstract
Colorectal cancer (CRC) stands second in terms of mortality and third among the highest prevalent kinds of cancer globally. CRC prevalence is rising in moderately and poorly developed regions and is greater in economically advanced regions. Despite breakthroughs in targeted therapy, resistance to chemotherapeutics remains a significant challenge in the long-term management of CRC. Circular RNAs (circRNAs) have been involved in growing cancer therapy resistance, particularly in CRC, according to an increasing number of studies in recent years. CircRNAs are one of the novel subclasses of non-coding RNAs, previously thought of as viroid. According to studies, circRNAs have been recommended as biological markers for therapeutic targets and diagnostic and prognostic purposes. That is particularly notable given that the expression of circRNAs has been linked to the hallmarks of CRC since they are responsible for drug resistance in CRC patients; thereby, circRNAs are significant for chemotherapy failure. Moreover, knowledge concerning circRNAs remains relatively unclear despite using all these advanced techniques. Here, in this study, we will go over the most recent published work to highlight the critical roles of circRNAs in CRC development and drug resistance and highlight the main strategies to overcome drug resistance to improve clinical outcomes.
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Affiliation(s)
- Bashdar Mahmud Hussen
- Department of Biomedical Sciences, College of Science, Cihan University-Erbil, Kurdistan Region, Iraq; Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
| | - Snur Rasool Abdullah
- Department of Medical Laboratory Science, College of Health Sciences, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | | | - Mohammed Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | - Ali M Hussein
- Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
| | - Solat Eslami
- Department of Medical Biotechnology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran; Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mark C Glassy
- Translational Neuro-Oncology Laboratory, San Diego (UCSD) Moores Cancer Center, University of California, CA, United States
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany.
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10
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Aquino-Jarquin G. CircRNA knockdown based on antisense strategies. Drug Discov Today 2024; 29:104066. [PMID: 38908546 DOI: 10.1016/j.drudis.2024.104066] [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: 02/27/2024] [Revised: 06/12/2024] [Accepted: 06/18/2024] [Indexed: 06/24/2024]
Abstract
Circular RNAs (circRNAs) are a type of noncoding RNA that are formed by back-splicing from eukaryotic protein-coding genes. The most frequently reported and well-characterized function of circRNAs is their ability to act as molecular decoys, most often as miRNA and protein sponges. However, the functions of most circRNAs still need to be better understood. To more fully understand the biological relevance of validated circRNAs, knockdown functional analyses can be performed using antisense oligonucleotides, RNA interference (RNAi) experiments (e.g., targeting back-splicing junction sites), the clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated (Cas)-9 system (e.g., generating circRNA-specific knockouts), and CRISPR-Cas13 technology to effectively target circRNAs without affecting host genes. In this review, I summarize the feasibility and effectiveness of circRNA knockdown through antisense strategies for investigating the biological roles of circRNAs in cultured cells and animal models.
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Affiliation(s)
- Guillermo Aquino-Jarquin
- RNA Biology and Genome Editing Section. Genomics, Genetics, and Bioinformatics Research Laboratory. 'Federico Gómez' Children's Hospital of Mexico. Dr. Márquez 162, Doctores, Cuauhtémoc, CP 06720, CDMX, Mexico.
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11
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Yang Y, Huang K, Jiang H, Wang S, Xu X, Liu Y, Liu Q, Wei M, Li Z. Unveiling the role of circRBBP7 in myoblast proliferation and differentiation: A novel regulator of muscle development. FASEB J 2024; 38:e23808. [PMID: 38994637 DOI: 10.1096/fj.202302599rr] [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: 12/18/2023] [Revised: 06/13/2024] [Accepted: 06/26/2024] [Indexed: 07/13/2024]
Abstract
Muscle development is a multistep process regulated by diverse gene networks, and circRNAs are considered novel regulators mediating myogenesis. Here, we systematically analyzed the role and underlying regulatory mechanisms of circRBBP7 in myoblast proliferation and differentiation. Results showed that circRBBP7 has a typical circular structure and encodes a 13 -kDa protein. By performing circRBBP7 overexpression and RNA interference, we found that the function of circRBBP7 was positively correlated with the proliferation and differentiation of myoblasts. Using RNA sequencing, we identified 1633 and 532 differentially expressed genes (DEGs) during myoblast proliferation or differentiation, respectively. The DEGs were found mainly enriched in cell cycle- and skeletal muscle development-related pathways, such as the MDM2/p53 and PI3K-Akt signaling pathways. Further co-IP and IF co-localization analysis revealed that VEGFR-1 is a target of circRBBP7 in myoblasts. qRT-PCR and WB analysis further confirmed the positive correlation between VEGFR-1 and circRBBP7. Moreover, we found that in vivo transfection of circRBBP7 into injured muscle tissues significantly promoted the regeneration and repair of myofibers in mice. Therefore, we speculate that circRBBP7 may affect the activity of MDM2 by targeting VEGFR-1, altering the expression of muscle development-related genes by mediating p53 degradation, and ultimately promoting myoblast development and muscle regeneration. This study provides essential evidence that circRBBP7 can serve as a potential target for myogenesis regulation and a reference for the application of circRBBP7 in cattle genetic breeding and muscle injury treatment.
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Affiliation(s)
- Yufeng Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
- The Animal Husbandry Research Institute of Guangxi Zhuang Autonomous Region, Guangxi Agricultural Vocational University, Nanning, China
| | - Kongwei Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
| | - Hancai Jiang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Shuwan Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xiaoxian Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Yang Liu
- Guangxi Zhuang Autonomous Region Center for Analysis and Test Research, Nanning, China
| | - Qingyou Liu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, China
| | - Mingsong Wei
- The Animal Husbandry Research Institute of Guangxi Zhuang Autonomous Region, Guangxi Agricultural Vocational University, Nanning, China
| | - Zhipeng Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
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12
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Okholm TLH, Kamstrup AB, Nielsen MM, Hollensen AK, Graversgaard ML, Sørensen MH, Kristensen LS, Vang S, Park SS, Yeo E, Dyrskjøt L, Kjems J, Pedersen JS, Damgaard CK. circHIPK3 nucleates IGF2BP2 and functions as a competing endogenous RNA. eLife 2024; 13:RP91783. [PMID: 39041323 PMCID: PMC11265796 DOI: 10.7554/elife.91783] [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] [Indexed: 07/24/2024] Open
Abstract
Circular RNAs represent a class of endogenous RNAs that regulate gene expression and influence cell biological decisions with implications for the pathogenesis of several diseases. Here, we disclose a novel gene-regulatory role of circHIPK3 by combining analyses of large genomics datasets and mechanistic cell biological follow-up experiments. Using time-course depletion of circHIPK3 and specific candidate RNA-binding proteins, we identify several perturbed genes by RNA sequencing analyses. Expression-coupled motif analyses identify an 11-mer motif within circHIPK3, which also becomes enriched in genes that are downregulated upon circHIPK3 depletion. By mining eCLIP datasets and combined with RNA immunoprecipitation assays, we demonstrate that the 11-mer motif constitutes a strong binding site for IGF2BP2 in bladder cancer cell lines. Our results suggest that circHIPK3 can sequester IGF2BP2 as a competing endogenous RNA (ceRNA), leading to target mRNA stabilization. As an example of a circHIPK3-regulated gene, we focus on the STAT3 mRNA as a specific substrate of IGF2BP2 and validate that manipulation of circHIPK3 regulates IGF2BP2-STAT3 mRNA binding and, thereby, STAT3 mRNA levels. Surprisingly, absolute copy number quantifications demonstrate that IGF2BP2 outnumbers circHIPK3 by orders of magnitude, which is inconsistent with a simple 1:1 ceRNA hypothesis. Instead, we show that circHIPK3 can nucleate multiple copies of IGF2BP2, potentially via phase separation, to produce IGF2BP2 condensates. Our results support a model where a few cellular circHIPK3 molecules can induce IGF2BP2 condensation, thereby regulating key factors for cell proliferation.
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Affiliation(s)
- Trine Line Hauge Okholm
- Department of Molecular Medicine (MOMA), Aarhus University HospitalAarhusDenmark
- Departments of Otolaryngology-Head and Neck Surgery and Microbiology & Immunology, University of California, San FranciscoSan FranciscoUnited States
- Department of Clinical Medicine, Aarhus UniversityAarhusDenmark
| | | | - Morten Muhlig Nielsen
- Department of Molecular Medicine (MOMA), Aarhus University HospitalAarhusDenmark
- Department of Clinical Medicine, Aarhus UniversityAarhusDenmark
| | | | | | | | | | - Søren Vang
- Department of Molecular Medicine (MOMA), Aarhus University HospitalAarhusDenmark
| | - Samuel S Park
- Department of Cellular and Molecular Medicine, University of California, San DiegoSan DiegoUnited States
| | - Eugene Yeo
- Department of Cellular and Molecular Medicine, University of California, San DiegoSan DiegoUnited States
| | - Lars Dyrskjøt
- Department of Molecular Medicine (MOMA), Aarhus University HospitalAarhusDenmark
- Department of Clinical Medicine, Aarhus UniversityAarhusDenmark
| | - Jørgen Kjems
- Department of Molecular Biology and Genetics, Aarhus UniversityAarhusDenmark
- Interdisciplinary Nanoscience Center (iNANO), Aarhus UniversityAarhusDenmark
| | - Jakob Skou Pedersen
- Department of Molecular Medicine (MOMA), Aarhus University HospitalAarhusDenmark
- Department of Clinical Medicine, Aarhus UniversityAarhusDenmark
- Bioinformatics Research Center (BiRC), Aarhus UniversityAarhusDenmark
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Okholm TLH, Kamstrup AB, Nielsen MM, Hollensen AK, Graversgaard ML, Sørensen MH, Kristensen LS, Vang S, Park SS, Yeo GW, Dyrskjøt L, Kjems J, Pedersen JS, Damgaard CK. circHIPK3 nucleates IGF2BP2 and functions as a competing endogenous RNA. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.09.14.557527. [PMID: 37745562 PMCID: PMC10515936 DOI: 10.1101/2023.09.14.557527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Circular RNAs (circRNAs) represent a class of widespread endogenous RNAs that regulate gene expression and thereby influence cell biological decisions with implications for the pathogenesis of several diseases. Here, we disclose a novel gene-regulatory role of circHIPK3 by combining analyses of large genomics datasets and mechanistic cell biological follow-up experiments. Specifically, we use temporal depletion of circHIPK3 or specific RNA binding proteins (RBPs) and identify several perturbed genes by RNA sequencing analyses. Using expression-coupled motif analyses of mRNA expression data from various knockdown experiments, we identify an 11-mer motif within circHIPK3, which is also enriched in genes that become downregulated upon circHIPK3 depletion. By mining eCLIP datasets, we find that the 11-mer motif constitutes a strong binding site for IGF2BP2 and validate this circHIPK3-IGF2BP2 interaction experimentally using RNA-immunoprecipitation and competition assays in bladder cancer cell lines. Our results suggest that circHIPK3 and IGF2BP2 mRNA targets compete for binding. Since the identified 11-mer motif found in circHIPK3 is enriched in upregulated genes following IGF2BP2 knockdown, and since IGF2BP2 depletion conversely globally antagonizes the effect of circHIPK3 knockdown on target genes, our results suggest that circHIPK3 can sequester IGF2BP2 as a competing endogenous RNA (ceRNA), leading to target mRNA stabilization. As an example of a circHIPK3-regulated gene, we focus on the STAT3 mRNA as a specific substrate of IGF2BP2 and validate that manipulation of circHIPK3 regulates IGF2BP2- STAT3 mRNA binding and thereby STAT3 mRNA levels. However, absolute copy number quantifications demonstrate that IGF2BP2 outnumbers circHIPK3 by orders of magnitude, which is inconsistent with a simple 1:1 ceRNA hypothesis. Instead, we show that circHIPK3 can nucleate multiple copies of IGF2BP2, potentially via phase separation, to produce IGF2BP2 condensates. Finally, we show that circHIPK3 expression correlates with overall survival of patients with bladder cancer. Our results are consistent with a model where relatively few cellular circHIPK3 molecules function as inducers of IGF2BP2 condensation thereby regulating STAT3 and other key factors for cell proliferation and potentially cancer progression.
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Zhang HY, Zhu JJ, Liu ZM, Zhang YX, Chen JJ, Chen KD. A prognostic four-gene signature and a therapeutic strategy for hepatocellular carcinoma: Construction and analysis of a circRNA-mediated competing endogenous RNA network. Hepatobiliary Pancreat Dis Int 2024; 23:272-287. [PMID: 37407412 DOI: 10.1016/j.hbpd.2023.06.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 06/13/2023] [Indexed: 07/07/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) has a poor long-term prognosis. The competition of circular RNAs (circRNAs) with endogenous RNA is a novel tool for predicting HCC prognosis. Based on the alterations of circRNA regulatory networks, the analysis of gene modules related to HCC is feasible. METHODS Multiple expression datasets and RNA element targeting prediction tools were used to construct a circRNA-microRNA-mRNA network in HCC. Gene function, pathway, and protein interaction analyses were performed for the differentially expressed genes (DEGs) in this regulatory network. In the protein-protein interaction network, hub genes were identified and subjected to regression analysis, producing an optimized four-gene signature for prognostic risk stratification in HCC patients. Anti-HCC drugs were excavated by assessing the DEGs between the low- and high-risk groups. A circRNA-microRNA-hub gene subnetwork was constructed, in which three hallmark genes, KIF4A, CCNA2, and PBK, were subjected to functional enrichment analysis. RESULTS A four-gene signature (KIF4A, CCNA2, PBK, and ZWINT) that effectively estimated the overall survival and aided in prognostic risk assessment in the The Cancer Genome Atlas (TCGA) cohort and International Cancer Genome Consortium (ICGC) cohort was developed. CDK inhibitors, PI3K inhibitors, HDAC inhibitors, and EGFR inhibitors were predicted as four potential mechanisms of drug action (MOA) in high-risk HCC patients. Subsequent analysis has revealed that PBK, CCNA2, and KIF4A play a crucial role in regulating the tumor microenvironment by promoting immune cell invasion, regulating microsatellite instability (MSI), and exerting an impact on HCC progression. CONCLUSIONS The present study highlights the role of the circRNA-related regulatory network, identifies a four-gene prognostic signature and biomarkers, and further identifies novel therapy for HCC.
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Affiliation(s)
- Hai-Yan Zhang
- Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jia-Jie Zhu
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China
| | - Zong-Ming Liu
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China
| | - Yu-Xuan Zhang
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China
| | - Jia-Jia Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Ke-Da Chen
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China.
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Tuerdi R, Zhang H, Wang W, Shen M, Wei X. Bibliometric analysis of the research hotspots and trends of circular RNAs. Heliyon 2024; 10:e31478. [PMID: 38818139 PMCID: PMC11137546 DOI: 10.1016/j.heliyon.2024.e31478] [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: 11/29/2023] [Revised: 03/27/2024] [Accepted: 05/16/2024] [Indexed: 06/01/2024] Open
Abstract
Background and objective Circular RNAs (circRNAs) have garnered considerable attention in the study of various human diseases due to their ubiquitous expression and potential biological functions. This study conducts a bibliometric and visualization-based analysis of circRNA-related research in diseases, aiming to reveal the current status, hotspots and emerging trends within the field. Methods Literature published between 2013 and 2022 and indexed in the Web of Science core databases was retrieved. Visualizations of publication volume, countries, authors, institutions, journals, references, and keywords were performed. Microsoft Excel (2021) was used to analyze and graph publication volume and growth trends. Additionally, CiteSpace (version 6.1.R6) and VOSviewer (version 1.6.18) were employed to visualize the bibliographic information. Results Between 2013 and 2022, a total of 4195 relevant articles on circRNA in the context of diseases were identified. These articles covered 56 countries, 2528 institutions, 19,842 authors and 698 journals, citing 85,541 references. The annual publication volume showed an exponential growth trend, with rapid development post-2017. China, the United States and Germany emerged as the top three contributors, demonstrating high publication volume and total citations. Notably, Nanjing Medical University exhibited the highest publication volume, boasting 291 articles. Burton B. Yang and Li Yang consistently ranked among the top 10 authors in terms of publication volume and citations, emerging as core contributors in this research field. The journal Bioengineered ranked first in terms of published articles (160), with an impact factor of 6.832, while Molecular Cancer garnered the highest impact factor (41.4), solidifying its position as a top journal in this field. Furthermore, high-frequency keywords included "expression" "proliferation" "biomarker" "microRNA" "cancer", signifying the prevailing research hotspots and principal themes of this field over the past decade. As of 2022, "biomarker", "prostate cancer","drug resistance","papillary thyroid carcinoma", etc. continued as keywords during the outbreak period. At present, the value of circRNA application is mainly reflected in the two aspects of biomarkers and therapeutic targets, and the prediction of accurate diagnosis and precise treatment based on big data analysis, especially in cancer, will become a hot spot of research in the future. Conclusion The trajectory of circRNA research from its biological origins to its applications in diseases has been delineated from 2013 to 2022. However, the transition to disease-specific applications and exploration of biological functions warrants further attention in future research endeavors.
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Affiliation(s)
- Reyila Tuerdi
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000, Gansu, China
| | - Hui Zhang
- Pathogenic Biology Laboratory, Gansu Provincial Center for Disease Prevention and Control, Lanzhou, 730000, Gansu, China
| | - Wenxin Wang
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000, Gansu, China
| | - Minghui Shen
- Center of Laboratory Medicine, Lanzhou University Second Hospital, Lanzhou, 730000, Gansu, China
| | - Xingmin Wei
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou, 730000, Gansu, China
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16
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Rong X, Li R, Gong T, Li H, Zhao X, Cao G, Li M, Li B, Yang Y, Guo X. CircMEF2C(2, 3) modulates proliferation and adipogenesis of porcine intramuscular preadipocytes by miR-383/671-3p/ MEF2C axis. iScience 2024; 27:109710. [PMID: 38689646 PMCID: PMC11059125 DOI: 10.1016/j.isci.2024.109710] [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: 11/14/2023] [Revised: 02/06/2024] [Accepted: 04/06/2024] [Indexed: 05/02/2024] Open
Abstract
Circular RNA is a special category of non-coding RNA that has emerged as epigenetic regulator of adipose tissue development. However, the mechanism governing intramuscular adipogenesis of circRNA remains largely uncharted. In this study, circMEF2C(2, 3), looped by MEF2C exons 2 and 3, was identified from the pig MEF2C gene. Expression of circMEF2C(2, 3) is upregulated in early stage of intramuscular adipogenesis and muscular tissue of lean pigs (DLY pig). Subsequently, overexpression or knockdown of circMEF2C(2, 3) reflected that it participates in promoting proliferation and inhibiting adipogenic differentiation in porcine intramuscular preadipocytes and murine C3H10T1/2 cells. Mechanically, circMEF2C(2, 3) competitively combined with miR-383 and miR-671-3p to the 3'-UTR of MEF2C, which maintains MEF2C expression in regulating proliferation and adipogenesis. In summary, circMEF2C(2, 3) is a key regulator in the proliferation and adipogenic differentiation of intramuscular adipogenesis, suggesting its potential as a multi-target strategy for adipose development and associated diseases.
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Affiliation(s)
- Xiaoyin Rong
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Ruixiao Li
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Tianye Gong
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Haonan Li
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Xiaolei Zhao
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Guoqing Cao
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Meng Li
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Bugao Li
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Yang Yang
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
| | - Xiaohong Guo
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, P.R. China
- Key Laboratory of Farm Animal Genetic Resources Exploration and Breeding of Shanxi Province, Jinzhong 030801, P.R. China
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Geng Y, Zheng X, Zhang D, Wei S, Feng J, Wang W, Zhang L, Wu C, Hu W. CircHIF1A induces cetuximab resistance in colorectal cancer by promoting HIF1α-mediated glycometabolism alteration. Biol Direct 2024; 19:36. [PMID: 38715141 PMCID: PMC11075259 DOI: 10.1186/s13062-024-00478-x] [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: 11/24/2023] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
Epidermal growth factor receptor (EGFR)-targeted therapy is an important treatment for RAS wild-type metastatic colorectal cancer (mCRC), but the resistance mechanism remains unclear. Here, the differential expression of circRNAs between Cetuximab sensitive and resistant cell lines was analyzed using whole-transcriptome sequencing. We identified that the expression of circHIF1A was significantly higher in LIM1215-R than in LIM1215. When treated with Cetuximab, downregulation of circHIF1A level weakened the proliferation and clonal formation ability of LIM1215-R, caused more cells to enter G0-G1 phase, and significantly reduced the basal respiration, ATP production, and maximal respiration, as well as the glycolytic capacity and glycolytic reserve. The response rate and prognosis of circHIF1A-positive patients were inferior to those of negative patients. Mechanistically, circHIF1A can upregulate the level of hypoxia-inducible factor 1 A (HIF1A) by competitively binding to miR-361-5p, inducing the overexpression of enzymes such as glucose transporter 1 (GLUT1) and lactate dehydrogenase A (LDHA). In a xenograft model, inhibition of circHIF1A expression increased the sensitivity to Cetuximab treatment. In conclusion, circHIF1A can promote HIF1α-mediated glycometabolism alteration to induce Cetuximab resistance in CRC. It has the potential to become a screening indicator for the Cetuximab beneficial population in mCRC and a new therapeutic target for enhancing treatment efficacy.
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Affiliation(s)
- Yiting Geng
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Xiao Zheng
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
- Jiangsu Engineering Research Center for Tumor Immunotherapy, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Dachuan Zhang
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Shanshan Wei
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Jun Feng
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Wei Wang
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Luo Zhang
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China
| | - Changping Wu
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
| | - Wenwei Hu
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
- Jiangsu Engineering Research Center for Tumor Immunotherapy, The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
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Kang WY, Gao YL, Wang Y, Li F, Liu JX. KFDAE: CircRNA-Disease Associations Prediction Based on Kernel Fusion and Deep Auto-Encoder. IEEE J Biomed Health Inform 2024; 28:3178-3185. [PMID: 38408006 DOI: 10.1109/jbhi.2024.3369650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
CircRNA has been proved to play an important role in the diseases diagnosis and treatment. Considering that the wet-lab is time-consuming and expensive, computational methods are viable alternative in these years. However, the number of circRNA-disease associations (CDAs) that can be verified is relatively few, and some methods do not take full advantage of dependencies between attributes. To solve these problems, this paper proposes a novel method based on Kernel Fusion and Deep Auto-encoder (KFDAE) to predict the potential associations between circRNAs and diseases. Firstly, KFDAE uses a non-linear method to fuse the circRNA similarity kernels and disease similarity kernels. Then the vectors are connected to make the positive and negative sample sets, and these data are send to deep auto-encoder to reduce dimension and extract features. Finally, three-layer deep feedforward neural network is used to learn features and gain the prediction score. The experimental results show that compared with existing methods, KFDAE achieves the best performance. In addition, the results of case studies prove the effectiveness and practical significance of KFDAE, which means KFDAE is able to capture more comprehensive information and generate credible candidate for subsequent wet-lab.
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Li X, Yang Y, Wang Z, Lin X, Fu X, He X, Liu M, Wang JX, Yu T, Sun P. CircHIPK3 targets DRP1 to mediate hydrogen peroxide-induced necroptosis of vascular smooth muscle cells and atherosclerotic vulnerable plaque formation. J Adv Res 2024:S2090-1232(24)00154-1. [PMID: 38621622 DOI: 10.1016/j.jare.2024.04.011] [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: 12/28/2023] [Revised: 03/21/2024] [Accepted: 04/10/2024] [Indexed: 04/17/2024] Open
Abstract
INTRODUCTION Necroptosis triggered by H2O2 is hypothesized to be a critical factor in the rupture of atherosclerotic plaques, which may precipitate acute cardiovascular events. Nevertheless, the specific regulatory molecules of this development remain unclear. We aims to elucidate a mechanism from the perspective of circular RNA. OBJECTIVES There are few studies on circRNA in VSMCs necroptosis. The objective of our research is to shed light on the intricate roles that circHIPK3 plays in the process of necroptosis in VSMCs and the development of atherosclerotic plaques that are prone to rupture. Our study elucidates the specific molecular mechanisms by which circHIPK3 regulates necroptosis and atherosclerotic vulnerable plaque formation through targeted proteins. Identifying this mechanism at the cellular level offers a molecular framework for understanding plaque progression and stability regulation, as well as a potential biomarker for the prognosis of susceptible atherosclerotic plaques. METHODS We collected clinical vascular tissue for HE staining and Masson staining to determine the presence and stability of plaques. Then, NCBI database was used to screen out circRNA with elevated expression level in plaque tissue, and the up-regulated circRNA, circHIPK3, was verified by qRT-PCR and FISH. Further, we synthesized circHIPK3's small interference sequence and overexpressed plasmid in vitro, and verified its regulation effect on necroptosis of VSMCs under physiological and pathological conditions by WB, qRT-PCR and PI staining. Through RNA pull down, mass spectrometry and RNA immunoprecipitation, DRP1 was identified as circHIPK3 binding protein and was positively regulated by circHIPK3. Meanwhile, on the basis of silencing of DRP1, the regulation of circHIPK3 on necroptosis is verified to be mediated by DRP1. Finally, we validated the regulation of circHIPK3 on vulnerable plaque formation in ApoE-/- mice. RESULTS We investigated that circHIPK3 was highly expressed in vulnerable plaques, and the increase in expression level promoted H2O2 induced necroptosis of VSMCs. CircHIPK3 targeted the protein DRP1, leading to an elevation in mitochondrial division rate, resulting in increased reactive oxygen species and impaired mitochondrial function, ultimately leading to necroptosis of VSMCs and vulnerable plaque formation. CONCLUSION CircHIPK3 interact with DRP1 involve in H2O2 induced Mitochondrial damage and necroptosis of VSMCs, and Silencing circHIPK3 in vivo can reduce atherosclerotic vulnerable plaque formation. Our research findings may have applications in providing diagnostic biomarkers for vulnerable plaques.
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Affiliation(s)
- Xiaolu Li
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China
| | - Yanyan Yang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao 266071, People's Republic of China
| | - Zhibin Wang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China
| | - Xiaotong Lin
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao 266011, People's Republic of China
| | - Xiuxiu Fu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China
| | - Xiangqin He
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China
| | - Meixin Liu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China
| | - Jian-Xun Wang
- Department of Immunology, School of Basic Medicine, Qingdao University, Qingdao 266071, People's Republic of China
| | - Tao Yu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China; Center for Regenerative Medicine, Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao 266000, People's Republic of China.
| | - Pin Sun
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266000, People's Republic of China.
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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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Dong C, Hui P, Wu Z, Li J, Man X. CircRNA LOC729852 promotes bladder cancer progression by regulating macrophage polarization and recruitment via the miR-769-5p/IL-10 axis. J Cell Mol Med 2024; 28:e18225. [PMID: 38506082 PMCID: PMC10951884 DOI: 10.1111/jcmm.18225] [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: 10/10/2023] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/21/2024] Open
Abstract
Circular RNAs (circRNAs) function as tumour promoters or suppressors in bladder cancer (BLCA) by regulating genes involved in macrophage recruitment and polarization. However, the underlying mechanisms are largely unknown. The aim of this study was to determine the biological role of circLOC729852 in BLCA. CircLOC729852 was upregulated in BLCA tissues and correlated with increased proliferation, migration and epithelial mesenchymal transition (EMT) of BCLA cells. MiR-769-5p was identified as a target for circLOC729852, which can upregulate IL-10 expression by directly binding to and suppressing miR-769-5p. Furthermore, our results indicated that the circLOC729852/miR-769-5p/IL-10 axis modulates autophagy signalling in BLCA cells and promotes the recruitment and M2 polarization of TAMs by activating the JAK2/STAT3 signalling pathway. In addition, circLOC729852 also promoted the growth of BLCA xenografts and M2 macrophage infiltration in vivo. Thus, circLOC729852 functions as an oncogene in BLCA by inducing secretion of IL-10 by the M2 TAMs, which then facilitates tumour cell growth and migration. Taken together, circLOC729852 is a potential diagnostic biomarker and therapeutic target for BLCA.
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Affiliation(s)
- Changming Dong
- Department of Urology, China Medical UniversityThe First Hospital of China Medical UniversityShenyangLiaoningChina
- Department of UrologyThe First Hospital of China Medical UniversityShenyangLiaoningPR China
| | - Pengyu Hui
- Department of UrologyThe Second Affiliated Hospital of Xi'an Medical UniversityXi'anShaanxiChina
| | - Zhengqi Wu
- Department of Urology, China Medical UniversityThe First Hospital of China Medical UniversityShenyangLiaoningChina
| | - Jianfeng Li
- Department of Urology, China Medical UniversityThe First Hospital of China Medical UniversityShenyangLiaoningChina
| | - Xiaojun Man
- Department of Urology, China Medical UniversityThe First Hospital of China Medical UniversityShenyangLiaoningChina
- Department of UrologyThe First Hospital of China Medical UniversityShenyangLiaoningPR China
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22
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Jia Y, Huo X, Wu L, Zhang H, Xu W, Leng H. circSNTB2 and CUL4A Induces Dysfunction of Nucleus Pulposus Cells by Competitively Binding miR-665. Biochem Genet 2024; 62:968-986. [PMID: 37507642 DOI: 10.1007/s10528-023-10465-y] [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: 05/18/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
Circular RNA (circRNA) plays important roles in lumbar degenerative diseases. This study aimed to investigate the role of circSNTB2 in regulating the development of lumbar disc herniation (LDH) in vitro and in vivo. The abnormally expressed circSNTB2 in intervertebral disc degeneration (IDD) through bioinformatics analysis was identified, and verified in nucleus pulposus (NP) tissues of patients with LDH. NP cells were treated with TNF-α to mimic the LDH microenvironment. RT-qPCR was applied to determine levels of mRNA and microRNA (miRNA) in clinical samples and cells. We performed CCK-8, EdU, TUNEL and flow cytometric apoptosis assays to evaluate the proliferation and apoptosis of NP cells. The predicted the miRNAs and downstream target genes were verified with the help of luciferase reporter gene and RNA pull-down experiments. Finally, we established an LDH rat model to further verify the role of circSNTB2 in vivo. circSNTB2 was significantly up-regulated in the NP tissues of LDH group and TNF-α -treated NP cells. miR-665 binds to circSNTB2 and cullin 4A (CUL4A) is the downstream target gene of miR-665. Knockdown of circSNTB2 promoted NP cells proliferation and inhibited apoptosis, which was reversed by down-regulation of miR-665. In addition, up-regulated CUL4A reversed the effects of over-expressed miR-665 on proliferation and apoptosis of NP cells. Meanwhile, results of in vivo experiments demonstrated that knocking down circSNTB2 alleviated LDH-induced thermo-mechanical pain and NP injury. In summary, circSNTB2 regulates the proliferation and apoptosis of NP by mediating miR-665 regulation of CUL4A, which provides a reliable idea for targeted therapy of LDH.
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Affiliation(s)
- Yiming Jia
- Department of Spine Surgery, Chifeng Municipal Hospital, Hongshan District, No. 1, Zhaowuda Road, Chifeng City, 024000, Inner Mongolia, China
| | - Xin Huo
- Department of Orthopaedics, Chifeng Second Hospital, Hongshan District, No.1, Changqing Street, Chifeng City, 024000, Inner Mongolia, China
| | - Leilei Wu
- Department of Spine Surgery, Chifeng Municipal Hospital, Hongshan District, No. 1, Zhaowuda Road, Chifeng City, 024000, Inner Mongolia, China
| | - Haibo Zhang
- Department of Spine Surgery, Chifeng Municipal Hospital, Hongshan District, No. 1, Zhaowuda Road, Chifeng City, 024000, Inner Mongolia, China
| | - Wenda Xu
- Department of Spine Surgery, Chifeng Municipal Hospital, Hongshan District, No. 1, Zhaowuda Road, Chifeng City, 024000, Inner Mongolia, China
| | - Hui Leng
- Department of Spine Surgery, Chifeng Municipal Hospital, Hongshan District, No. 1, Zhaowuda Road, Chifeng City, 024000, Inner Mongolia, China.
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Ren Y, Manoharan T, Liu B, Cheng CZM, En Siew B, Cheong WK, Lee KY, Tan IJW, Lieske B, Tan KK, Chia G. Circular RNA as a source of neoantigens for cancer vaccines. J Immunother Cancer 2024; 12:e008402. [PMID: 38508656 PMCID: PMC10952939 DOI: 10.1136/jitc-2023-008402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND The effectiveness of somatic neoantigen-based immunotherapy is often hindered by the limited number of mutations in tumors with low to moderate mutation burden. Focusing on microsatellite-stable colorectal cancer (CRC), this study investigates the potential of tumor-associated circular RNAs (circRNAs) as an alternative source of neoepitopes in CRC. METHODS Tumor-associated circRNAs in CRC were identified using the MiOncoCirc database and ribo-depletion RNA sequencing of paired clinical normal and tumor samples. Candidate circRNA expression was validated by quantitative real-time PCR (RT-qPCR) using divergent primers. TransCirc database was used for translation prediction. Human leukocyte antigen binding affinity of open reading frames from potentially translatable circRNA was predicted using pVACtools. Strong binders from messenger RNA-encoded proteins were excluded using BlastP. The immunogenicity of the candidate antigens was functionally validated through stimulation of naïve CD8+ T cells against the predicted neoepitopes and subsequent analysis of the T cells through enzyme-linked immunospot (ELISpot) assay, intracellular cytokine staining (ICS) and granzyme B (GZMB) reporter. The cytotoxicity of T cells trained with antigen peptides was further tested using patient-derived organoids. RESULTS We identified a neoepitope from circRAPGEF5 that is upregulated in CRC tumor samples from MiOncoCirc database, and two neoepitopes from circMYH9, which is upregulated across various tumor samples from our matched clinical samples. The translation potential of candidate peptides was supported by Clinical Proteomic Tumor Analysis Consortium database using PepQuery. The candidate peptides elicited antigen-specific T cells response and expansion, evidenced by various assays including ELISpot, ICS and GZMB reporter. Furthermore, T cells trained with circMYH9 peptides were able to specifically target and eliminate tumor-derived organoids but not match normal organoids. This observation underscores the potential of circRNAs as a source of immunogenic neoantigens. Lastly, circMYH9 was enriched in the liquid biopsies of patients with CRC, thus enabling a detection-to-vaccination treatment strategy for patients with CRC. CONCLUSIONS Our findings underscore the feasibility of tumor-associated circRNAs as an alternative source of neoantigens for cancer vaccines targeting tumors with moderate mutation levels.
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Affiliation(s)
- Yi Ren
- Department of Pharmacy, National University of Singapore, Singapore
- NUS iHealthtech, Singapore
| | - Thamizhanban Manoharan
- Department of Pharmacy, National University of Singapore, Singapore
- NUS iHealthtech, Singapore
| | - Beijia Liu
- Department of Pharmacy, National University of Singapore, Singapore
| | - Cyrus Zai Ming Cheng
- Department of Pharmacy, National University of Singapore, Singapore
- NUS iHealthtech, Singapore
| | - Bei En Siew
- Department of Surgery, National University of Singapore, Singapore
- Department of Surgery, National University Hospital, Singapore
| | - Wai-Kit Cheong
- Department of Surgery, National University Hospital, Singapore
| | - Kai Yin Lee
- Department of Surgery, National University Hospital, Singapore
| | - Ian Jse-Wei Tan
- Department of Surgery, National University Hospital, Singapore
| | - Bettina Lieske
- Department of Surgery, National University Hospital, Singapore
| | - Ker-Kan Tan
- Department of Surgery, National University of Singapore, Singapore
- Department of Surgery, National University Hospital, Singapore
| | - Gloryn Chia
- Department of Pharmacy, National University of Singapore, Singapore
- NUS iHealthtech, Singapore
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24
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Gomez EW, De Paula LB, Weimer RD, Hellwig AHDS, Rodrigues GM, Alegretti AP, de Oliveira JR. The potential of circHIPK3 as a biomarker in chronic myeloid leukemia. Front Oncol 2024; 14:1330592. [PMID: 38505596 PMCID: PMC10948418 DOI: 10.3389/fonc.2024.1330592] [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: 10/31/2023] [Accepted: 02/14/2024] [Indexed: 03/21/2024] Open
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative disorder characterized by leukocytosis and left shift. The primary molecular alteration is the BCR::ABL1, chimeric oncoprotein with tyrosine kinase activity, responsible for the initial oncogenesis of the disease. Therapy of CML was revolutionized with the advent of tyrosine kinase inhibitors, but it is still not considered curative and may present resistance and serious adverse effects. Discoveries in CML inaugurated a new era in cancer treatment and despite all the advances, a new biomarker is needed to detect resistance and adverse effects. Circular RNAs (circRNAs) are a special type of non-coding RNA formed through a process called backsplicing. The majority of circRNAs are derived from protein-coding genes. CircHIPK3 is formed from the second exon of the HIPK3 gene and has been found in various pathologies, including different types of cancer. New approaches have demonstrated the potential of circular RNAs in cancer research, and circHIPK3 has shown promising results. It is often associated with cellular regulatory pathways, suggesting an important role in the molecular dynamics of tumors. The identification of biomarkers is an important tool for therapeutic improvement; thus we review the role of circHIPK3 and its potential as a biomarker in CML.
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Affiliation(s)
- Eduardo Wandame Gomez
- Laboratory of Cell Biophysics and Inflammation, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
- Laboratory of Molecular Biology, Laboratory Diagnostic Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Laura Berti De Paula
- Laboratory of Cell Biophysics and Inflammation, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Rafael Diogo Weimer
- Laboratory of Cell Biophysics and Inflammation, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Grazielle Motta Rodrigues
- Laboratory of Molecular Biology, Laboratory Diagnostic Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Ana Paula Alegretti
- Laboratory of Molecular Biology, Laboratory Diagnostic Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Jarbas Rodrigues de Oliveira
- Laboratory of Cell Biophysics and Inflammation, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
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25
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Cao SQ, Xue ST, Li WJ, Hu GS, Wu ZG, Zheng JC, Zhang SL, Lin X, Chen C, Liu W, Zheng B. CircHIPK3 regulates fatty acid metabolism through miR-637/FASN axis to promote esophageal squamous cell carcinoma. Cell Death Discov 2024; 10:110. [PMID: 38431720 PMCID: PMC10908791 DOI: 10.1038/s41420-024-01881-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/05/2024] Open
Abstract
The oncogenic role of circRNA in cancers including esophageal cancer (EC) has been well studied. However, whether and how circRNAs are involved in cancer cell metabolic processes remains largely unknown. Here, we reported that circRNA, circHIPK3, is highly expressed in ESCC cell lines and tissues. Knockdown of circHIPK3 significantly restrained cell proliferation, colony formation, migration, and invasion in vitro and inhibited tumor growth in vivo. Mechanistically, circHIPK3 was found to act as a ceRNA by sponging miR-637 to regulate FASN expression and fatty acid metabolism in ESCC cells. Anti-sense oligonucleotide (ASO) targeting circHIPK3 substantially inhibited ESCC both in vitro and in vivo. Therefore, these results uncover a modulatory axis constituting of circHIPK3/miR-637/FASN may be a potential biomarker and therapeutic target for ESCC in the clinic.
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Affiliation(s)
- Shi-Qiang Cao
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
| | - Song-Tao Xue
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
| | - Wen-Juan Li
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
| | - Guo-Sheng Hu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang'an South Road, Xiamen, Fujian, 361102, China
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang'an South Road, Xiamen, Fujian, 361102, China
- Xiang An Biomedicine Laboratory, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang'an South Road, Xiamen, Fujian, 361102, China
| | - Zhi-Gang Wu
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
| | - Jian-Cong Zheng
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
| | - Shu-Liang Zhang
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
| | - Xiao Lin
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China
| | - Chun Chen
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China.
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China.
| | - Wen Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang'an South Road, Xiamen, Fujian, 361102, China.
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang'an South Road, Xiamen, Fujian, 361102, China.
- Xiang An Biomedicine Laboratory, School of Pharmaceutical Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiang'an South Road, Xiamen, Fujian, 361102, China.
| | - Bin Zheng
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China.
- Fujian Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, No. 29 Xinquan Road, Fuzhou, Fujian, 350001, China.
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26
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Wang Y, Chen X, Yang Y. CircRNA-regulated glucose metabolism in ovarian cancer: an emerging landscape for therapeutic intervention. Clin Transl Oncol 2024; 26:584-596. [PMID: 37578652 DOI: 10.1007/s12094-023-03285-4] [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: 05/11/2023] [Accepted: 07/11/2023] [Indexed: 08/15/2023]
Abstract
Ovarian cancer (OC) has the highest mortality rate among female reproductive system tumours, with limited efficacy of traditional treatments and 5-year survival rates that rarely exceed 40%. Circular RNA (circRNA) is a stable endogenous circular RNA that typically regulates protein expression by binding to downstream miRNA. It has been demonstrated that circRNAs play an important role in the proliferation, migration, and glucose metabolism (such as the Warburg effect) of OC and can regulate the expression of glucose metabolism-related proteins such as GLUT1 and HK2, promoting anaerobic glycolysis of cancer cells, increasing glucose uptake and ATP production, and affecting energy supply and biosynthetic substances to support tumour growth and invasion. This review summarises the formation and characteristics of circRNAs and focuses on their role in regulating glucose metabolism in OC cells and their potential therapeutic value, providing insights for identifying new therapeutic targets.
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Affiliation(s)
- Yaolong Wang
- Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, 730000, China
- Key Laboratory of Gynecological Oncology of Gansu Province, Lanzhou, Gansu, China
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, China
| | - Xi Chen
- Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, 730000, China
- Key Laboratory of Gynecological Oncology of Gansu Province, Lanzhou, Gansu, China
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, China
| | - Yongxiu Yang
- Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, 730000, China.
- Key Laboratory of Gynecological Oncology of Gansu Province, Lanzhou, Gansu, China.
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, China.
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27
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Saleh RO, Al-Hawary SIS, Jasim SA, Bokov DO, Hjazi A, Oudaha KH, Alnajar MJ, Jumaa SS, Alawadi A, Alsalamy A. A therapeutical insight into the correlation between circRNAs and signaling pathways involved in cancer pathogenesis. Med Oncol 2024; 41:69. [PMID: 38311682 DOI: 10.1007/s12032-023-02275-4] [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: 10/26/2023] [Accepted: 11/28/2023] [Indexed: 02/06/2024]
Abstract
Pre-messenger RNA molecules are back-spliced to create circular RNAs, which are non-coding RNA molecules. After a thorough investigation, it was discovered that these circRNAs have critical biological roles. CircRNAs have a variety of biological functions, including their ability to operate as microRNA sponges, interact with proteins to alter their stabilities and activities, and provide templates for the translation of proteins. Evidence supports a link between the emergence of numerous diseases, including various cancer types, and dysregulated circRNA expression. It is commonly known that a significant contributing element to cancer development is the disruption of numerous molecular pathways essential for preserving cellular and tissue homeostasis. The dysregulation of multiple biological processes is one of the hallmarks of cancer, and the molecular pathways linked to these processes are thought to be promising targets for therapeutic intervention. The biological and carcinogenic effects of circRNAs in the context of cancer are thoroughly reviewed in this article. Specifically, we highlight circRNAs' involvement in signal transduction pathways and their possible use as novel biomarkers for the early identification and prognosis of human cancer.
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Affiliation(s)
- Raed Obaid Saleh
- Department of Medical Laboratory Techniques, Al-Maarif University College, Al-Anbar, Iraq
| | | | | | - Dmitry Olegovich Bokov
- Institute of Pharmacy, Sechenov First Moscow State Medical University, 8 Trubetskaya St., Bldg. 2, Moscow, 119991, Russian Federation
- Laboratory of Food Chemistry, Federal Research Center of Nutrition, Biotechnology and Food Safety, 2/14 Ustyinsky Pr, Moscow, 109240, Russian Federation
| | - Ahmed Hjazi
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, 11942, Al-Kharj, Saudi Arabia
| | - Khulood H Oudaha
- Pharmaceutical Chemistry Department, College of Pharmacy, Al-Ayen University, Thi-Qar, Iraq
| | | | - Sally Salih Jumaa
- College of Pharmacy/National University of Science and Technology, Dhi Qar, Iraq
| | - Ahmed Alawadi
- College of Technical Engineering, The Islamic University, Najaf, Iraq
- College of Technical Engineering, The Islamic University of Al Diwaniyah,, Al Diwaniyah, Iraq
- College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq
| | - Ali Alsalamy
- College of Technical Engineering, Imam Ja'afar Al-Sadiq University, Al-Muthanna, 66002, Iraq
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28
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Zou B, Ning N, Yan Y, Zhang Y. Lateral lymph node dissection can increase overall survival and 5‑year survival rate of rectal cancer patients: A meta‑analysis. Oncol Lett 2024; 27:80. [PMID: 38249814 PMCID: PMC10797321 DOI: 10.3892/ol.2024.14214] [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: 03/19/2023] [Accepted: 09/19/2023] [Indexed: 01/23/2024] Open
Abstract
Rectal cancer is one of the most malignant tumors, and postoperative recurrence and metastasis are the main reasons for treatment failure. Lymph node metastasis is the main metastatic pathway of rectal cancer. The present study aimed to investigate the role of lateral lymph node dissection (LLND) in patients with rectal cancer using a meta-analysis. Articles in Chinese and English related to the application of LLND in patients with rectal cancer were retrieved and eligible studies were selected for data analysis. Evaluation indicators included the 5-year survival rate, recurrence rate, urinary system function and operation time. The random-effects model was utilized for the analysis. A total of 10 studies that met the eligibility criteria were selected, comprising 2,272 patients, including 1,101 cases in the LLND group and 1,171 cases in the non-LLND group. No significant difference was found between the two groups in terms of local recurrence rate, 5-year disease-free survival (DFS) rate, and DFS rate at the follow-up. It is noteworthy that cases in the LLND group had no significantly longer overall survival, but had a higher 5-year survival rate. However, cases in the LLND group had a longer operation time and worse urinary dysfunction. The results remained consistent throughout separate analyses for different research quality sources. The present meta-analysis showed that LLND provided a specific advantage in prolonging survival time. However, it was associated with prolonged operation time and an increased incidence of urinary dysfunction.
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Affiliation(s)
- Boyuan Zou
- Department of Retroperitoneal Tumor and Anorectal Surgery, Peking University International Hospital, Beijing 102206, P.R. China
| | - Ning Ning
- Department of Gastroenterological Surgery, Peking University International Hospital, Beijing 102206, P.R. China
| | - Yichao Yan
- Department of Gastroenterological Surgery, Peking University International Hospital, Beijing 102206, P.R. China
| | - Yankai Zhang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Peking University People's Hospital, Beijing 100044, P.R. China
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29
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Meng L, Wu H, Wu J, Ding P, He J, Sang M, Liu L. Mechanisms of immune checkpoint inhibitors: insights into the regulation of circular RNAS involved in cancer hallmarks. Cell Death Dis 2024; 15:3. [PMID: 38177102 PMCID: PMC10766988 DOI: 10.1038/s41419-023-06389-5] [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: 09/15/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 01/06/2024]
Abstract
Current treatment strategies for cancer, especially advanced cancer, are limited and unsatisfactory. One of the most substantial advances in cancer therapy, in the last decades, was the discovery of a new layer of immunotherapy approach, immune checkpoint inhibitors (ICIs), which can specifically activate immune cells by targeting immune checkpoints. Immune checkpoints are a type of immunosuppressive molecules expressed on immune cells, which can regulate the degree of immune activation and avoid autoimmune responses. ICIs, such as anti-PD-1/PD-L1 drugs, has shown inspiring efficacy and broad applicability across various cancers. Unfortunately, not all cancer patients benefit remarkably from ICIs, and the overall response rates to ICIs remain relatively low for most cancer types. Moreover, the primary and acquired resistance to ICIs pose serious challenges to the clinical application of cancer immunotherapy. Thus, a deeper understanding of the molecular biological properties and regulatory mechanisms of immune checkpoints is urgently needed to improve clinical options for current therapies. Recently, circular RNAs (circRNAs) have attracted increasing attention, not only due to their involvement in various aspects of cancer hallmarks, but also for their impact on immune checkpoints in shaping the tumor immune microenvironment. In this review, we systematically summarize the current status of immune checkpoints in cancer and the existing regulatory roles of circRNAs on immune checkpoints. Meanwhile, we also aim to settle the issue in an evidence-oriented manner that circRNAs involved in cancer hallmarks regulate the effects and resistance of ICIs by targeting immune checkpoints.
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Affiliation(s)
- Lingjiao Meng
- Department of Tumor Immunotherapy, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050035, China
- Research Center and Tumor Research Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, China
| | - Haotian Wu
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050011, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, 050011, China
| | - Jiaxiang Wu
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050011, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, 050011, China
| | - Ping'an Ding
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050011, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, 050011, China
| | - Jinchen He
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050011, China
- Hebei Key Laboratory of Precision Diagnosis and Comprehensive Treatment of Gastric Cancer, Shijiazhuang, 050011, China
| | - Meixiang Sang
- Research Center and Tumor Research Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, China.
- Science and Education Department, Shanghai Electric Power Hospital, Shanghai, 20050, China.
| | - Lihua Liu
- Department of Tumor Immunotherapy, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050035, China.
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Wei W, Liu K, Huang X, Tian S, Wang H, Zhang C, Ye J, Dong Y, An Z, Ma X, Wang B, Huang Y, Zhang X. EIF4A3-mediated biogenesis of circSTX6 promotes bladder cancer metastasis and cisplatin resistance. J Exp Clin Cancer Res 2024; 43:2. [PMID: 38163881 PMCID: PMC10759346 DOI: 10.1186/s13046-023-02932-6] [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: 09/25/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND Cisplatin (CDDP)-based chemotherapy is a standard first-line treatment for metastatic bladder cancer (BCa) patients, and chemoresistance remains a major challenge in clinical practice. Circular RNAs (circRNAs) have emerged as essential regulators in carcinogenesis and cancer progression. However, the role of circRNAs in mediating CDDP chemosensitivity has yet to be well elucidated in BCa. METHODS CircSTX6 (hsa_circ_0007905) was identified by mining the public circRNA datasets and verified by Sanger sequencing, agarose gel electrophoresis, RNase R treatment and qRT-PCR assays. Then, function experiments were performed to evaluate the effects of circSTX6 on BCa metastasis. Luciferase reporter assay, RNA pull-down, RNA immunoprecipitation (RIP), RNA stability assay, Fluorescence in situ hybridization (FISH) and Immunofluorescence (IF) were conducted to evaluate the interaction among circSTX6, miR-515-3p, PABPC1 and SUZ12. Animal experiments were performed to explore the function of circSTX6 in tumor metastasis and CDDP sensitivity. RESULTS We identified that circSTX6 was significantly upregulated in clinical samples and cells of BCa. Functionally, circSTX6 promoted cell migration and invasion both in vitro and in vivo. Mechanistically, circSTX6 could act as a miR-515-3p sponge and abolish its effect on SUZ12. Moreover, circSTX6 was confirmed to increase the stability of SUZ12 mRNA by interacting with a mRNA stabilizer PABPC1 and subsequently promote the expression of SUZ12. Importantly, silencing of circSTX6 improved the chemosensitivity of CDDP-resistant bladder cancer cells to CDDP. Furthermore, in vivo analysis supported that knockdown of circSTX6 attenuated CDDP resistance in BCa tumors. CONCLUSION These studies demonstrate that circSTX6 plays a pivotal role in BCa metastasis and chemoresistance, and has potential to serve as a therapeutic target for treatment of BCa.
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Affiliation(s)
- Wenjie Wei
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Kan Liu
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Xing Huang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Shuo Tian
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Hanfeng Wang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Chi Zhang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Jiali Ye
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Yuhao Dong
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Ziyan An
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of PLA, Beijing, 100853, China
| | - Xin Ma
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Baojun Wang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
| | - Yan Huang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
| | - Xu Zhang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
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Zhang Y, Guo J, Zhang L, Li Y, Sheng K, Zhang Y, Liu L, Gong W, Guo K. CircASPH Enhances Exosomal STING to Facilitate M2 Macrophage Polarization in Colorectal Cancer. Inflamm Bowel Dis 2023; 29:1941-1956. [PMID: 37624989 DOI: 10.1093/ibd/izad113] [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: 09/01/2022] [Indexed: 08/27/2023]
Abstract
Exosomes are considered a mediator of communication within the tumor microenvironment (TME), which modulates cancer progression through transmitting cargos between cancer cells and other cancer-related cells in TME. Circular RNAs (circRNAs) have emerged to be regulators in colorectal cancer (CRC) progression, but most of them have not been discussed in CRC. This study aims to investigate the role of circRNA aspartate beta-hydroxylase (circASPH) in CRC progression and its correlation with exosome-mediated TME. At first, we determined that circASPH was upregulated in CRC samples and cell lines. Functionally, the circASPH deficiency suppressed the malignant processes of CRC cells and also inhibited in vivo tumor growth via enhancing antitumor immunity. Mechanically, circASPH facilitated macrophage M2 polarization by upregulating exosomal stimulator of interferon genes (STING). CircASPH interacted with insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2) to stabilize IGF2BP2 protein, therefore enhancing the stability of m6A-modified STING mRNA. In turn, coculture of STING-overexpressed macrophages recovered the suppression of silenced circASPH on the malignancy of CRC cells both in vitro and in vivo. Our study demonstrated that circASPH enhances exosomal STING to facilitate M2 macrophage polarization, which further accelerates CRC progression. The findings support circASPH as a promising therapeutic target for CRC treatment.
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Affiliation(s)
- Yuting Zhang
- Department of Gastroenterology, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Jiakun Guo
- College of Life Science, Jilin Agricultural University, Changchun, Jilin, China
| | - Liyin Zhang
- Department of Dermatology, Wuxi's Second People Hospital Affiliated With Nanjing Medical University, 68 Zhongshan Road, Wuxi, Jiangsu 214000, China
| | - Ying Li
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230001, Anhui, China
| | - Kangliang Sheng
- School of Life Sciences, Anhui University, Hefei, 230001, Anhui, China
| | - Yawei Zhang
- Department of General Surgery, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Liu Liu
- Department of Clinical Laboratory, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Wenbin Gong
- Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Kun Guo
- Department of General Surgery, the First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
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Mester-Tonczar J, Einzinger P, Hasimbegovic E, Kastner N, Schweiger V, Spannbauer A, Han E, Müller-Zlabinger K, Traxler-Weidenauer D, Bergler-Klein J, Gyöngyösi M, Lukovic D. A CircRNA-miRNA-mRNA Network for Exploring Doxorubicin- and Myocet-Induced Cardiotoxicity in a Translational Porcine Model. Biomolecules 2023; 13:1711. [PMID: 38136582 PMCID: PMC10741657 DOI: 10.3390/biom13121711] [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: 10/06/2023] [Revised: 11/14/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Despite the widespread use of doxorubicin (DOX) as a chemotherapeutic agent, its severe cumulative cardiotoxicity represents a significant limitation. While the liposomal encapsulation of doxorubicin (Myocet, MYO) reduces cardiotoxicity, it is crucial to understand the molecular background of doxorubicin-induced cardiotoxicity. Here, we examined circular RNA expression in a translational model of pigs treated with either DOX or MYO and its potential impact on the global gene expression pattern in the myocardium. This study furthers our knowledge about the regulatory network of circRNA/miRNA/mRNA and its interaction with chemotherapeutics. Domestic pigs were treated with three cycles of anthracycline drugs (DOX, n = 5; MYO, n = 5) to induce cardiotoxicity. Untreated animals served as controls (control, n = 3). We applied a bulk mRNA-seq approach and the CIRIquant algorithm to identify circRNAs. The most differentially regulated circRNAs were validated under cell culture conditions, following forecasting of the circRNA-miRNA-mRNA network. We identified eight novel significantly regulated circRNAs from exonic and mitochondrial regions in the porcine myocardium. The forecasted circRNA-miRNA-mRNA network suggested candidate circRNAs that sponge miR-17, miR-15b, miR-130b, the let-7 family, and miR125, together with their mRNA targets. The identified circRNA-miRNA-mRNA network provides an updated, coherent view of the mechanisms involved in anthracycline-induced cardiotoxicity.
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Affiliation(s)
- Julia Mester-Tonczar
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Patrick Einzinger
- Research Unit of Information and Software, Institute of Information Systems Engineering, 1040 Vienna, Austria;
| | - Ena Hasimbegovic
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Nina Kastner
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Victor Schweiger
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Andreas Spannbauer
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Emilie Han
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Katrin Müller-Zlabinger
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Denise Traxler-Weidenauer
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Jutta Bergler-Klein
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Mariann Gyöngyösi
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
| | - Dominika Lukovic
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, 1090 Vienna, Austria; (J.M.-T.); (E.H.); (N.K.); (V.S.); (A.S.); (K.M.-Z.); (D.T.-W.); (J.B.-K.); (M.G.)
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Lin Y, Shi H, Wu L, Ge L, Ma Z. Research progress of N6-methyladenosine in colorectal cancer: A review. Medicine (Baltimore) 2023; 102:e36394. [PMID: 38013272 PMCID: PMC10681580 DOI: 10.1097/md.0000000000036394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 11/09/2023] [Indexed: 11/29/2023] Open
Abstract
Colorectal cancer is the third most common malignant tumor worldwide, causing serious harm to human health. Epigenetic modification, especially RNA methylation modification, plays a critical role in the occurrence and development of colorectal cancer via post-transcriptional regulation of mRNA and non-coding RNA expression. Among these, N6-methyladenosine (m6A) is the most common chemical modification in mammals, which plays an important role in the progress of cancer, including colorectal cancer. m6A is a dynamic and reversible process and is mainly regulated by m6A methyltransferase ("writers"), m6A demethylases ("erasers"), and m6A binding proteins ("readers"). Herein, we reviewed recent advances in the role of m6A modification in colorectal cancer and focused on the factors affecting m6A modification. Furthermore, we discussed the clinical application of m6A modifications for colorectal cancer diagnosis, prognosis, and treatment and provided guides in clinical practice. m6A modification and m6A regulators play significant roles in the occurrence and development of colorectal cancer by regulating the stability and translation of mRNAs, the maturation of miRNAs, and the function of lncRNAs. m6A regulators can play biological roles in colorectal cancer through m6A-dependent manner or m6A-independent manner. Multiplies of internal factors, including miRNAs and lncRNAs, and external factors can also regulate the m6A modification by completing with m6A regulators in a base complement manner, regulating the expression of m6A and mutating the m6A site. m6A regulators and m6A modificantion are diagnostic and prognostic markers for CRC. Therefore, m6A regulators and m6A modificantion may be potential therapeutic target for CRC in the future.
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Affiliation(s)
- Yu Lin
- Department of Respiratory, Nanjing Gaochun People’s Hospital, Nanjing, China
| | - Hongjun Shi
- Department of Pharmacy, Nanjing Gaochun People’s Hospital, Nanjing, China
| | - Lianping Wu
- Department of Pharmacy, Nanjing Gaochun People’s Hospital, Nanjing, China
| | - Linyang Ge
- Department of Respiratory, Nanjing Gaochun People’s Hospital, Nanjing, China
| | - Zengqing Ma
- Department of Pharmacy, Nanjing Gaochun People’s Hospital, Nanjing, China
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Yang Q, Liang Y, Shi Y, Shang J, Huang X. The ALKBH5/SOX4 axis promotes liver cancer stem cell properties via activating the SHH signaling pathway. J Cancer Res Clin Oncol 2023; 149:15499-15510. [PMID: 37646828 DOI: 10.1007/s00432-023-05309-6] [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: 07/23/2023] [Accepted: 08/16/2023] [Indexed: 09/01/2023]
Abstract
Hepatocellular carcinoma (HCC), featured with high prevalence and poor prognosis, is the major cause of cancer-related deaths worldwide. As a subgroup of liver cancer cells capable of differentiation, tumorigenesis and self-renewal, liver cancer stem cells (LCSCs) serve as one of the reasons leading to HCC progression and therapeutic resistance. Therefore, in-depth exploration of novel molecular biomarkers related to LSCSs is of great necessity. In our study, we found that human AlkB homolog H5 (ALKBH5) expression was enriched in LCSCs, which could foster proliferation, invasion and migration of the HCC cells. Mechanically, ALKBH5 positively mediated the expression of SOX4 via demethylation, and SOX4 promoted SHH expression at the transcriptional level to activate sonic hedgehog (SHH) signaling pathway. Furthermore, exosomes derived from CD133+ HCC cells could transmit ALKBH5 into THP-1 cells, which might be associated with M2 polarization of macrophages. In summary, the ALKBH5/SOX4 axis plays a significant role in exacerbating LCSC properties via activating SHH signaling pathway, and ALKBH5 could be a critical effector related to macrophage M2 polarization. These findings might provide a promising new biomarker for HCC diagnosis and treatment.
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Affiliation(s)
- Qinyan Yang
- Liver Transplantation Center and HBP Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuxin Liang
- Liver Transplantation Center and HBP Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Ying Shi
- Liver Transplantation Center and HBP Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Jin Shang
- Liver Transplantation Center and HBP Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
| | - Xiaolun Huang
- Liver Transplantation Center and HBP Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
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Ghaedrahmati F, Nasrolahi A, Najafi S, Mighani M, Anbiyaee O, Haybar H, Assareh AR, Kempisty B, Dzięgiel P, Azizidoost S, Farzaneh M. Circular RNAs-mediated angiogenesis in human cancers. Clin Transl Oncol 2023; 25:3101-3121. [PMID: 37039938 DOI: 10.1007/s12094-023-03178-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/16/2023] [Indexed: 04/12/2023]
Abstract
Circular RNAs (circRNAs) as small non-coding RNAs with cell, tissue, or organ-specific expression accomplish a broad array of functions in physiological and pathological processes such as cancer development. Angiogenesis, a complicated multistep process driving a formation of new blood vessels, speeds up tumor progression by supplying nutrients as well as energy. Abnormal expression of circRNAs reported to affect tumor development through impressing angiogenesis. Such impacts are introduced as constant with different tumorigenic features known as "hallmarks of cancer". In addition, deregulated circRNAs show possibilities to prognosis and diagnosis both in the prophecy of prognosis in malignancies and also their prejudice from healthy individuals. In the present review article, we have evaluated the angiogenic impacts and anti-angiogenic managements of circRNAs in human cancers.
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Affiliation(s)
- Farhoodeh Ghaedrahmati
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ava Nasrolahi
- Infectious Ophthalmologic Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sajad Najafi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Mighani
- School of Medicine, Golestan University of Medical Sciences, Golestan, Iran
| | - Omid Anbiyaee
- Cardiovascular Research Center, Nemazi Hospital, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Habib Haybar
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ahmad Reza Assareh
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bartosz Kempisty
- Institute of Veterinary Medicine, Department of Veterinary Surgery, Nicolaus Copernicus University, Torun, Poland
- Department of Human Morphology and Embryology, Division of Anatomy, Wroclaw Medical University, Wrocław, Poland
- North Carolina State University College of Agriculture and Life Sciences, Raleigh, NC, 27695, US
| | - Piotr Dzięgiel
- Division of Histology and Embryology, Department of Human Morphology and Embryology, Wroclaw Medical University, 50-368, Wroclaw, Poland
| | - Shirin Azizidoost
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Maryam Farzaneh
- Fertility, Infertility and Perinatology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Ma T, Guo J, Han J, Li L, Ren Y, Huang J, Diao G, Zheng X, Zheng Y. Circ_0001589/miR-1248/HMGB1 axis enhances EMT-mediated metastasis and cisplatin resistance in cervical cancer. Mol Carcinog 2023; 62:1645-1658. [PMID: 37431919 DOI: 10.1002/mc.23605] [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: 03/23/2023] [Revised: 05/30/2023] [Accepted: 06/11/2023] [Indexed: 07/12/2023]
Abstract
Cervical cancer is the fourth most common malignant tumors in female worldwide. Cirular RNAs (circRNA) represent a new class of regulatory RNA and play a pivotal role in the carcinogenesis and development of tumors. However, their functions have not been fully elucidated in cervical cancer. In this study, we identified an upregulated circRNA, circ_0001589, both in fresh clinical samples and tissue microarray of cervical cancer. Transwell assay and cell apoptosis assay by flow cytometry demonstrated circ_0001589 promotes epithelial-mesenchymal transition (EMT)-mediated cell migration and invasion, and enhanced cisplatin resistance in vitro. In addition, in nude mice model, circ_0001589 increased the number of lung metastases and recovered xenograft growth from cisplatin treatment in vivo. Mechanistically, RNA pull-down assay, RNA immunoprecipitation, and dual-luciferase reporter assay disclosed that circ_0001589 function as an competing endogenous RNA to sponge miR-1248, which directly target the 3' untranslated region of high mobility group box-B1 (HMGB1). Thereby, circ_0001589 upregulated HMGB1 protein expression and accelerate cervical cancer progression. The rescue experiments also revealed that miR-1248 overexpression or HMGB1 knockdown partially reversed the regulatory functions of circ_0001589 on cell migration, invasion, and cisplatin resistance. In summary, our findings suggest the upregulation of circ_0001589 promoted EMT-mediated cell migration and invasion, and enhanced cisplatin resistance via regulating miR-1248/HMGB1 axis in cervical cancer. These results provided new evidence for understanding the carcinogenesis mechanism and finding new therapeutic target for cervical cancer.
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Affiliation(s)
- Teng Ma
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jianxin Guo
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jian Han
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Lanfang Li
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yifei Ren
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jie Huang
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Ge Diao
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiuhui Zheng
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Yingru Zheng
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University (Third Military Medical University), Chongqing, China
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Zhang Y, Xu Y, Qiu G, Luo Y, Bao Y, Lu J, Wang T, Wang Y. METTL3 Mediated MALAT1 m6A Modification Promotes Proliferation and Metastasis in Osteosarcoma Cells. Mol Biotechnol 2023:10.1007/s12033-023-00953-2. [PMID: 37897586 DOI: 10.1007/s12033-023-00953-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 10/16/2023] [Indexed: 10/30/2023]
Abstract
BACKGROUND As one of the most ubiquitous types of posttranscriptional modification, N6-methyladenosine (m6A) is extensively implicated in almost all types of cancers, including osteosarcoma. Our previous research partially uncovered the role of Metastasis Associated Lung Adenocarcinoma Transcript 1 (MALAT1) in osteosarcoma. However, the relationships between methyltransferase-like 3 (METTL3) and noncoding RNAs modified by METTL3, especially MALAT1, in osteosarcoma remain obscure. METHODS The expression of METTL3 in osteosarcoma was evaluated by online bioinformatics analysis, immunohistochemical (IHC) staining, western blotting (WB), and reverse transcription-quantitative PCR (RT‒qPCR). Cell Counting Kit 8 (CCK-8) and Transwell assays were used to evaluate the cell proliferation and invasion abilities. The expression of MALAT1 in osteosarcoma was evaluated by online bioinformatics analysis and RT‒qPCR analysis. m6A methylated RNA immunoprecipitation-qPCR (MeRIP-qPCR) was used to detect m6A modification changes in MALAT1. An actinomycin D assay was used to study changes in the stability of MALAT1. RESULTS METTL3 was upregulated in osteosarcoma tissues and cell lines. Functionally, METTL3 promoted the proliferation and migration of osteosarcoma cells. Moreover, a clear positive correlation was found between METTL3 and MALAT1 expression, and MALAT1 was upregulated in osteosarcoma tissues and cells. Mechanistically, the presence of m6A modification sites in MALAT1 and METTL3-mediated m6A modification increased the stability of MALAT1 in osteosarcoma cells and promoted their proliferation and migration. CONCLUSION In this study, it was concluded that in osteosarcoma cells, METTL3, acting as an oncogene, promoted m6A modification of MALAT1, increased the stability of MALAT, and enhanced MALAT1-mediated oncogenic function.
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Affiliation(s)
- Yuanzhuang Zhang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Yeqiu Xu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Guanzhen Qiu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Yinzhou Luo
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Yuxin Bao
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China
| | - Jie Lu
- Department of Cardiology, Shenyang Fourth People's Hospital, China Medical University, Shenyang, 110031, Liaoning, P.R. China
| | - Tao Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China.
| | - Yong Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, No. 5 South Seven West Road, Tiexi, Shenyang, 110024, Liaoning, P.R. China.
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Qiu X, Xu Q, Liao B, Hu S, Zhou Y, Zhang H. Circ-CCS regulates oxaliplatin resistance via targeting miR-874-3p/HK2 axis in colorectal cancer. Histol Histopathol 2023; 38:1145-1156. [PMID: 36519522 DOI: 10.14670/hh-18-565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is a malignancy that threatens the patient's life. Previous reports showed that circular RNAs (circRNAs) can affect CRC development. Herein, we demonstrated the characters of circular RNA copper chaperone for superoxide dismutase (circ-CCS) in CRC tissues and cells. METHODS Circ-CCS, CCS mRNA, microRNA-874-3p (miR-874-3p) and hexokinase 2 (HK2) were indicated by qRT-PCR and western blot in CRC. The cell roles were examined. Additionally, the interaction between miR-874-3p and circ-CCS or HK2 was forecasted by the bioinformatics method and assessed by dual-luciferase reporter assay. Finally, the mouse test was implemented to demonstrate the effect of circ-CCS in vivo. RESULTS Circ-CCS and HK2 were increased, whereas miR-874-3p was diminished in CRC. Circ-CCS lack subdued the IC₅₀ value of oxaliplatin, cell proliferation, migration, invasion and glycolysis metabolism in CRC cells, while it endorsed cell apoptosis. Furthermore, miR-874-3p was validated as having a tumor repressive effect in CRC cells by restraining HK2. The results also showed that HK2 could regulate the development of CRC. In mechanism, circ-CCS targeted miR-874-3p to control HK2. In addition, circ-CCS knock-down also attenuated tumor growth in mice. CONCLUSION Circ-CCS expedited CRC through miR-874-3p/HK2.
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Affiliation(s)
- Xiaofeng Qiu
- Department of General Surgery, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qihua Xu
- Department of Gastroenterology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bingling Liao
- Department of Gastroenterology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Sheng Hu
- Department of General Surgery, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ying Zhou
- Department of Gastroenterology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Huijun Zhang
- Department of Gastroenterology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Abdollahi E, Mozdarani H. Role of The circ-HIPK3, circ-PVT1, miR-25, and miR-149 in Response of Breast Cancer Cells to Ionizing Radiation. CELL JOURNAL 2023; 25:688-695. [PMID: 37865877 PMCID: PMC10591259 DOI: 10.22074/cellj.2023.1995943.1255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/18/2023] [Accepted: 07/16/2023] [Indexed: 10/23/2023]
Abstract
OBJECTIVE Determining cellular radiosensitivity of breast cancer (BC) patients through molecular markers before radiation therapy (RT) allows accurate prediction of individual's response to radiation. The aim of this study was therefore to investigate the potential role of epigenetic biomarkers in breast cancer cellular radiosensitivity. MATERIALS AND METHODS In this experimental study, we treated two BC cell lines, MDA-MB 231 and MCF-7, with doses of 2, 4, and 8Gy of irradiation for 24 and 48 hours. Expression levels of circ-HIPK3, circ-PVT1, miR-25, and miR- 149 were quantified using quantitative reverse-transcription polymerase chain reaction (qRT-PCR). Significance of the observations was statistically verified using one-way ANOVA with a significance level of P<0.05. Annexin V-FITC/PI binding assay was utilized to measure cellular apoptosis. RESULTS The rate of cell apoptosis was significantly higher in MCF-7 cells compared to MDA-MB-231 cells at doses of 4Gy and 8Gy (P=0.013 and P=0.004, respectively). RNA expression analysis showed that circ-HIPK3 was increased in the MDA-MB-231 cell line compared to the MCF-7 cell line after exposure to 8Gy for 48 hours. Expression of circ-PVT1 was found to be higher in MDA-MB-231 cells compared to MCF-7 cells after exposure to 8Gy for 24 hours, likewise after exposure to 4Gy and 8Gy for 48 hours. After exposing 8Gy, expression of miR-25 was increased in MDA-MB-231 cells compared to MCF-7 cells at 24 and 48 hours. After exposing 8Gy dose, expression of miR-149 was increased in MCF-7 cells compared to MDA-MB-231 cells at 24 and 48 hours. CONCLUSION circ-HIPK3, circ-PVT1, and miR-25 played crucial roles in the mechanisms of radioresistance in breast cancer. Additionally, miR-149 was involved in regulating cellular radiosensitivity. Therefore, these factors provided predictive information about a tumor's radiosensitivity or its response to treatment, which could be valuable in personalizing radiation dosage.
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Affiliation(s)
- Elahe Abdollahi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hossein Mozdarani
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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Liu X, Wu Q, Wu J, Liu J, Zheng F, Yu G, Hu H, Guo Z, Wu S, Li H, Shao W. Microglia-derived exosomal circZNRF1 alleviates paraquat-induced neuronal cell damage via miR-17-5p. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115356. [PMID: 37591128 DOI: 10.1016/j.ecoenv.2023.115356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/19/2023] [Accepted: 08/09/2023] [Indexed: 08/19/2023]
Abstract
Paraquat (PQ) is an environmental poison that causes clinical symptoms similar to those of Parkinson's disease (PD) in vitro and in rodents. It can lead to the activation of microglia and apoptosis of dopaminergic neurons. However, the exact role and mechanism of microglial activation in PQ-induced neuronal degeneration remain unknown. Here, we isolated the microglia-derived exosomes exposed with 0 and 40 μM PQ, which were subsequently co-incubated with PQ-exposed neuronal cells to simulate intercellular communication. First, we found that exosomes released from microglia caused a change in neuronal cell vitality and reversed PQ-induced neuronal apoptosis. RNA sequencing data showed that these activated microglia-derived exosomes carried large amounts of circZNRF1. Moreover, a bioinformatics method was used to study the underlying mechanism of circZNRF1 in regulating PD, and miR-17-5p was predicted to be its target. Second, an increased Bcl2/Bax ratio could play an anti-apoptotic role. Bcl2 was predicted to be a downstream target of miR-17-5p. Our results showed that circZNRF1 plays an anti-apoptotic role by absorbing miR-17-5p and regulating the binding of Bcl2 after exosomes are internalized by dopaminergic neurons. In conclusion, we demonstrated a new intercellular communication mechanism between microglia and neurons, in which circZNRF1 plays a key role in protecting against PQ-induced neuronal apoptosis through miR-17-5p to regulate the biological process of PD. These findings may offer a novel approach to preventing and treating PD.
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Affiliation(s)
- Xu Liu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Qingqing Wu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Jingwen Wu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Jianxi Liu
- College of Environmental and Resource Sciences, College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou 350007, China
| | - Fuli Zheng
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Guangxia Yu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Hong Hu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Zhenkun Guo
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Siying Wu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Huangyuan Li
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China.
| | - Wenya Shao
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China.
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Zhou X, Qiu G, Yang Y, Bao W, Zhang D, Du X. Circ_0001955 promotes non-small cell lung cancer cell proliferation and invasion by regulating MiR-29a-3p/NKIRAS2 axis to activate the nuclear factor-κB pathway. Pathol Int 2023; 73:434-443. [PMID: 37477517 DOI: 10.1111/pin.13353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 06/21/2023] [Indexed: 07/22/2023]
Abstract
Non-small cell lung cancer (NSCLC) is one of the most common malignant tumors worldwide. Circular RNAs (circRNAs) have been widely reported to play a role in the pathogenesis of various tumors. Nevertheless, the function of circ_0001955 in NSCLC progression has not been explored yet. This study aims to explore the functions of circ_0001955 in NSCLC and investigate its regulatory molecular mechanism. First, we determined that circ_0001955 was upregulated in NSCLC cells. Subsequently, we demonstrated that knockdown of circ_0001955 restrained cell proliferation and invasion. In vivo experiments further proved the suppressive effect of circ_0001955 silence on tumor growth. Mechanism assays revealed that circ_0001955 enhanced nuclear factor-κB (NF-κB) inhibitor interacting Ras-like protein 2 (NKIRAS2) expression by sponging microRNA-29a-3p (miR-29a-3p). Upregulation of NKIRAS2 led to the deceased level of IκBβ but increased levels of nuclear p65, thus activating the NF-κB signaling pathway. In conclusion, Circ_0001955 activates the NF-κB pathway to promote NSCLC cell proliferation and invasion by regulating miR-29a-3p/NKIRAS2 axis.
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Affiliation(s)
- Xia Zhou
- Department of Thoracic Radiotherapy, Zhejiang Cancer Hospital, Gongshu District, Hangzhou, Zhejiang, China
| | - Guoqin Qiu
- Zhejiang Key Laboratory of Radiation Oncology, Hangzhou, Zhejiang, China
| | - Yang Yang
- Department of Thoracic Radiotherapy, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Wuan Bao
- Zhejiang Key Laboratory of Radiation Oncology, Hangzhou, Zhejiang, China
| | - Danhong Zhang
- Department of Thoracic Radiotherapy, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Xianghui Du
- Department of Thoracic Radiotherapy, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
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Zhu Y, Shen L, Xia Q, Tao H, Liu Z, Wang M, Zhang X, Zhang J, Lv J. Extracellular vesicle-derived circHIPK3: Novel diagnostic biomarker for lung cancer. Adv Med Sci 2023; 68:426-432. [PMID: 37866205 DOI: 10.1016/j.advms.2023.10.003] [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: 03/10/2023] [Revised: 06/15/2023] [Accepted: 10/09/2023] [Indexed: 10/24/2023]
Abstract
PURPOSE Lung cancer (LC) is a common malignancy worldwide. A great number of circular RNAs (circRNAs) have been identified that serve crucial roles in cancer development. Extracellular vesicles (EVs) and their contents have been shown to be biomarkers for the diagnosis and prognosis of LC. Thus, we intended to clarify the functional role of EVs-derived circRNA homology domain interacting protein kinase 3 (EVs-circHIPK3) and its underlying mechanism of action. MATERIAL AND METHODS Bioinformatics analysis was performed to validate the potential of partially circulating HIPK3 in LC diagnosis. EVs were isolated by polyethylene glycol (PEG) precipitation from plasma of 52 LC patients and 30 healthy controls. Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was employed to evaluate the expressions of candidate circRNAs (circHIPK3) and microRNA-637 (miR-637, a target of circHIPK3). RESULTS CircHIPK3 is significantly up-regulated in LC, while miR-637 expression is significantly reduced (p < 0.05). Receiver operating characteristic (ROC) curve analysis, based on the expression of EVs-circHIPK3, allowed us to distinguish LC from healthy controls (area under the curve, AUC 0.897). CONCLUSIONS Taken together, our study shows that EV-derived circHIPK3 can serve as a promising biomarker for LC patient diagnosis. However, the downstream mRNA of the circHIPK3/miR-637 axis requires further exploration to enrich our understanding of circHIPK3's mechanism in LC.
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Affiliation(s)
- Yingying Zhu
- Department of Oncology, Affiliated Aoyang Hospital of Jiangsu University, Jiangsu, China
| | - Li Shen
- Department of Oncology, Affiliated Aoyang Hospital of Jiangsu University, Jiangsu, China
| | - Qiuyan Xia
- Department of Oncology, Affiliated Aoyang Hospital of Jiangsu University, Jiangsu, China
| | - Heyun Tao
- Department of Oncology, Affiliated Aoyang Hospital of Jiangsu University, Jiangsu, China
| | - Zhanguo Liu
- Department of Oncology, Affiliated Aoyang Hospital of Jiangsu University, Jiangsu, China
| | - Mengdie Wang
- Department of Oncology, Affiliated Aoyang Hospital of Jiangsu University, Jiangsu, China
| | - Xiaomin Zhang
- Department of Oncology, Affiliated Aoyang Hospital of Jiangsu University, Jiangsu, China
| | - Jun Zhang
- Department of Oncology, Affiliated Aoyang Hospital of Jiangsu University, Jiangsu, China.
| | - Jian Lv
- Department of Thoracic Surgery, Affiliated Changzheng Hospital, Second Military Medical University, Shanghai, China.
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Wang L, Sheng Z, Yao T. Association between circHIPK3/miR-378a-3p/HDAC4 axis and osteoporotic fractures: A comprehensive investigation. J Orthop Surg (Hong Kong) 2023; 31:10225536231219637. [PMID: 38031987 DOI: 10.1177/10225536231219637] [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] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Osteoporotic fractures (OFs) are a significant public health issue, which can lead to pain and impaired mobility. The underlying mechanisms of OFs remain unclear, but recent studies have suggested that the circRNA-miRNA-mRNA pathway may play a crucial role. PURPOSE This study aimed to investigate the potential involvement of the circHIPK3/miR-378a-3p/HDAC4 pathway in the pathogenesis of OFs. METHODS We collected tissue and serum samples from 10 patients with OFs and 10 healthy controls. The expression levels of circHIPK3, miR-378a-3p, and HDAC4 were measured by qPCR and WB. Additionally, we quantified the serum levels of bone metabolism-related indicators (ALP, OC, TRAP, OCIF, ODF) using ELISA. RESULTS Our results revealed significant upregulation of circHIPK3 and HDAC4 in both tissue and serum samples from OF patients compared with controls. Simultaneously, we detected a lower expression level of miR-378a-3p in OF tissues and serum than that in the control group. Furthermore, the serum levels of bone metabolism-related indicators ALP, TRAP, OCIF, and ODF were significantly higher in OF patients than in the control group. Interestingly, the serum level of OCIF was lower in OF patients than in the control group. CONCLUSION Our study provides important evidence for the involvement of the circHIPK3/miR-378a-3p/HDAC4 pathway in the pathogenesis of OFs. The upregulation of circHIPK3 and HDAC4 and downregulation of miR-378a-3p observed in OF patients suggests their potential regulatory effects on bone metabolism. Meanwhile, abnormal expression of serum bone metabolism-related indicators may contribute to the development of OFs by disrupting the balance of bone remodeling.
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Affiliation(s)
- Lei Wang
- Department of Pre-Hospital and Emergency, The Third Affiliated Hospital of Anhui Medical University, The First People's Hospital of Hefei, Hefei, China
| | - Zhen Sheng
- Department of Orthopaedics, The Third Affiliated Hospital of Anhui Medical University, The First People's Hospital of Hefei, Hefei, China
| | - Tao Yao
- Department of Orthopaedics, The Third Affiliated Hospital of Anhui Medical University, The First People's Hospital of Hefei, Hefei, China
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Liu J, Zhao F, Chen LL, Su S. Dysregulation of circular RNAs in inflammation and cancers. FUNDAMENTAL RESEARCH 2023; 3:683-691. [PMID: 38933304 PMCID: PMC11197579 DOI: 10.1016/j.fmre.2023.04.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 02/24/2023] [Accepted: 04/19/2023] [Indexed: 06/28/2024] Open
Abstract
Emerging lines of evidence have shown that the production of the covalently closed single-stranded circular RNAs is not splicing errors, but rather a regulated process with distinct biogenesis and turnover. Circular RNAs are expressed in a cell type- and tissue-specific manner and often localize to specific subcellular regions or organelles for functions. The dysregulation of circular RNAs from birth to death is linked to the pathogenesis and progression of diverse diseases. This review outlines how aberrant circular RNA biogenesis, subcellular location, and degradation are linked to disease progression, focusing on metaflammation and cancers. We also discuss potential therapeutic strategies and obstacles in targeting such disease-related circular RNAs.
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Affiliation(s)
- Jiayu Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Fangqing Zhao
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China
- School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou 310003, China
| | - Ling-Ling Chen
- State Key Laboratory of Molecular Biology, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 200092, China
- School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou 310003, China
| | - Shicheng Su
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
- Department of Immunology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
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Zhi Y, Gao Q, Wang Z, Dong Y, Guan Y, Yuan J, Zhang Z. Circular RNA circSP5 promotes liver metastasis of colorectal cancer via SP5-mediated BAMBI transcription. Funct Integr Genomics 2023; 23:275. [PMID: 37596430 DOI: 10.1007/s10142-023-01142-9] [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: 02/20/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 08/20/2023]
Abstract
Liver metastasis of colorectal cancer (CRC) is a major cause of cancer morbidity and mortality. Circular RNAs (circRNAs) have been widely reported to be implicated in cancer metastasis. This study aims to investigate the effect of circSP5 (has_circ_0057010) on liver metastasis of CRC. Quantitative real-time PCR (RT-qPCR) analysis was performed to detect gene expression. The level of proteins was measured by western blot. The migration and invasion of CRC cells were assessed by wound healing assay and transwell assay. In vivo assays were performed after the construction of the CRC xenograft model and CRC model with liver metastasis. Mechanism analyses were performed via RNA-binding protein immunoprecipitation (RIP), RNA pulldown, luciferase reporter, chromatin immunoprecipitation (ChIP), and DNA pulldown assays. We found that circSP5 is significantly overexpressed in CRC with liver metastasis and its depletion suppresses the progression of CRC with liver metastasis in vitro and in vivo. Moreover, circSP5 enhances the expression of Sp5 transcription factor (SP5) via competitively sponging microRNA (miR)-1249-3p and could regulate BMP and activin membrane-bound inhibitor (BAMBI) via transcriptional activation. CircSP5 promotes the migration, invasion, and epithelial-mesenchymal transition (EMT) of CRC cells via BAMBI. In sum, circSP5 promotes liver metastasis of CRC by up-regulating SP5-mediated BAMBI transcription.
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Affiliation(s)
- Yingru Zhi
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Qingyuan Gao
- Department of Gastroenterology, Yuhua Branch of Nanjing First Hospital, Nanjing, Jiangsu, China
| | - Zhibing Wang
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Yu Dong
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Yue Guan
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Jie Yuan
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China.
| | - Zhenyu Zhang
- Department of Gastroenterology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China.
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Abdollahi E, Mozdarani H. Epigenetic regulation of circ-HIPK3, circ-PVT1, miR-25, and miR-149 in radiosensitivity of breast cancer. Exp Mol Pathol 2023; 132-133:104865. [PMID: 37536436 DOI: 10.1016/j.yexmp.2023.104865] [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: 02/26/2023] [Revised: 07/26/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Assessing the radiosensitivity of cells before administering radiation therapy (RT) to individuals diagnosed with breast cancer (BC) can facilitate the selection of appropriate treatment regimens and minimize the incidence of adverse side effects in patients undergoing radiation exposure. In this research, blood samples were obtained from 60 women who had been diagnosed with Invasive Ductal Carcinoma (IDC) Breast Cancer. The average age of the patients was 47 ± 9.93. Additionally, the study incorporated 20 healthy women, with an average age of 44.43 ± 6.7. A standard G2 assay was conducted to predict the cellular response to radiation. Out of the 60 samples, the G2 assay identified 20 patients with breast cancer who exhibited radiosensitivity. Hence, molecular investigations were ultimately conducted on two equivalent cohorts comprising 20 subjects each, one with and the other without cellular radiosensitivity. The expression levels of miR-149, miR-25, circ-PVT1, and circ-HIPK3 in peripheral blood mononuclear cells (PBMCs) were evaluated using quantitative polymerase chain reaction (qPCR). Receiver Operating Characteristic (ROC) curves were used to evaluate the sensitivity and specificity of the RNAs. An analysis using binary logistic regression was performed to investigate the relationship between RNAs and both BC and cellular radiosensitivity (CR) in patients with BC. The findings revealed a significant upregulation of Circ-HIPK3 and circ-PVT1 in individuals diagnosed with BC. The levels of Circ-HIPK3 and Circ-PVT1 were found to be directly associated with CR in BC patients. The analysis of the ROC curve demonstrated that circ-HIPK3 and circ-PVT1 exhibit favorable specificity and sensitivity in accurately predicting both BC and CR in patients with BC. The findings from the binary logistic regression analysis demonstrated that circ-HIPK3 and circ-PVT1 were effective predictors of both BC and CR. The ROC curve and binary logistic regression analyses provide evidence that miR-25 is a reliable predictor for BC patients exclusively. Our research has demonstrated that circ-HIPK3, circ-PVT1, and miR-25 may be involved in BC regulatory processes. The circular RNAs Circ-HIPK3 and circ-PVT1, as well as miR-25, among other significant biomarkers, could potentially serve as promising biomarkers for predicting BC. Furthermore, Circ-HIPK3 and circ-PVT1 have the potential to serve as biomarkers for predicting CR in BC patients.
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Affiliation(s)
- Elahe Abdollahi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hossein Mozdarani
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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Titze-de-Almeida SS, Titze-de-Almeida R. Progress in circRNA-Targeted Therapy in Experimental Parkinson's Disease. Pharmaceutics 2023; 15:2035. [PMID: 37631249 PMCID: PMC10459713 DOI: 10.3390/pharmaceutics15082035] [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: 06/16/2023] [Revised: 07/24/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Circular RNAs (circRNAs) are single-stranded RNA molecules often circularized by backsplicing. Growing evidence implicates circRNAs in the underlying mechanisms of various diseases, such as Alzheimer's and Parkinson's disease (PD)-the first and second most prevalent neurodegenerative disorders. In this sense, circSNCA, circHIPK2, circHIPK3, and circSLC8A1 are circRNAs that have been related to the neurodegenerative process of PD. Gain-of-function and loss-of-function studies on circRNAs have shed light on their roles in the pathobiology of various diseases. Gain-of-function approaches typically employ viral or non-viral vectors that hyperexpress RNA sequences capable of circularizing to form the specific circRNA under investigation. In contrast, loss-of-function studies utilize CRISPR/Cas systems, antisense oligonucleotides (ASOs), or RNAi techniques to knock down the target circRNA. The role of aberrantly expressed circRNAs in brain pathology has raised a critical question: could circRNAs serve as viable targets for neuroprotective treatments? Translating any oligonucleotide-based therapy, including those targeting circRNAs, involves developing adequate brain delivery systems, minimizing off-target effects, and addressing the high costs of treatment. Nonetheless, RNAi-based FDA-approved drugs have entered the market, and circRNAs have attracted significant attention and investment from major pharmaceutical companies. Spanning from bench to bedside, circRNAs present a vast opportunity in biotechnology for oligonucleotide-based therapies designed to slow or even halt the progression of neurodegenerative diseases.
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Affiliation(s)
- Simoneide Souza Titze-de-Almeida
- Technology for Gene Therapy Laboratory, Central Institute of Sciences, University of Brasília, Brasília 70910-900, Brazil
- Research Center for Major Themes, Central Institute of Sciences, University of Brasília, Brasília 70910-900, Brazil
| | - Ricardo Titze-de-Almeida
- Technology for Gene Therapy Laboratory, Central Institute of Sciences, University of Brasília, Brasília 70910-900, Brazil
- Research Center for Major Themes, Central Institute of Sciences, University of Brasília, Brasília 70910-900, Brazil
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He G, He Y, Ni H, Wang K, Zhu Y, Bao Y. Dexmedetomidine attenuates neuroinflammation and microglia activation in LPS-stimulated BV2 microglia cells through targeting circ-Shank3/miR-140-3p/TLR4 axis. Eur J Histochem 2023; 67:3766. [PMID: 37491974 PMCID: PMC10476535 DOI: 10.4081/ejh.2023.3766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/13/2023] [Indexed: 07/27/2023] Open
Abstract
It has been shown that dexmedetomidine (Dex) could attenuate postoperative cognitive dysfunction (POCD) via targeting circular RNAs (circRNAs). Circ-Shank3 has been found to be involved in the neuroprotective effects of Dex against POCD. However, the role of circ-Shank3 in POCD remains largely unknown. Reverse transcription quantitative PCR (RT-qPCR) was performed to detect circ-Shank3 and miR-140-3p levels in lipopolysaccharide (LPS)-treated microglia BV-2 cells in the absence or presence of Dex. The relationship among circ-Shank3, miR-140-3p and TLR4 was confirmed by dual-luciferase reporter assay. Additionally, Western blot and immunofluorescence (IF) assays were conducted to evaluate TLR4, p65 and Iba-1 or CD11b levels in cells. In this study, we found that Dex notably decreased circ-Shank3 and TLR4 levels and elevated miR-140-3p level in LPS-treated BV2 cells. Mechanistically, circ-Shank3 harbor miR-140-3p, functioning as a miRNA sponge, and then miR-140-3p targeted the 3'-UTR of TLR4. Additionally, Dex treatment significantly reduced TLR4 level and phosphorylation of p65, and decreased the expressions of microglia markers Iba-1 and CD11b in LPS-treated BV2 cells. As expected, silenced circ-Shank3 further reduced TLR4, p65 and Iba-1 and CD11b levels in LPS-treated BV2 cells in the presence of Dex, whereas these phenomena were reversed by miR-140-3p inhibitor. Collectively, our results found that Dex could attenuate the neuroinflammation and microglia activation in BV2 cells exposed to LPS via targeting circ-Shank3/miR-140-3p/TLR4 axis. Our results might shed a new light on the mechanism of Dex for the treatment of POCD.
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Affiliation(s)
- Guangbao He
- Department of Anesthesiology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai.
| | - Yibo He
- Department of Anesthesiology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai.
| | - Hongwei Ni
- Department of Anesthesiology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai.
| | - Kai Wang
- Department of Anesthesiology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai.
| | - Yijun Zhu
- Department of Anesthesiology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai.
| | - Yang Bao
- Department of Anesthesiology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai.
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Liu S, Hu C, Li M, Zhou W, Wang R, Xiao Y. Androgen receptor suppresses lung cancer invasion and increases cisplatin response via decreasing TPD52 expression. Int J Biol Sci 2023; 19:3709-3725. [PMID: 37564195 PMCID: PMC10411467 DOI: 10.7150/ijbs.84577] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 07/07/2023] [Indexed: 08/12/2023] Open
Abstract
Lung cancer, as the most commonly diagnosed malignancy, still accounts for the leading cause of cancer-related deaths worldwide. The high rate of mortality and tumor recurrence has prompted clinicians and scientists to urgently explore new targets for improved treatment. Previous studies have indicated a potential role of the androgen receptor (AR) in the progression of non-small cell lung cancer (NSCLC). However, the precise mechanisms underlying this association, particularly its relation to TPD52-mediated cell invasion and cisplatin (DDP) response, have not been fully elucidated. Therefore, further investigation is necessary to gain a better understanding of these mechanisms and their potential implications for lung cancer treatment. In this study, we discovered that AR can suppress NSCLC cell invasion and increase cisplatin response by downregulating the expression of circular RNA (circRNA), specifically circ-SLCO1B7. This suppression is achieved through the direct binding of AR to the 5' promoter region of the host gene SLCO1B7. The decreased expression of circ-SLCO1B7, mediated by AR, released miR-139-5p back to the RISC (RNA induced silencing complex), where it bonds to the 3' untranslated region (3'UTR) of Tumor Protein D52 (TPD52) messenger RNA, resulting in TPD52 reduction. The in vivo data also validated the functional contribution of AR/circ-SLCO1B7/miR-139-5p/TPD52 axis to lung cancer progression. Furthermore, analysis of human NSCLC databases and clinical specimens confirmed the association of the AR/circ-SLCO1B7/miR-139-5p/TPD52 signaling pathway with NSCLC progression. Collectively, the results from our study suggest that AR can suppress lung cancer cell invasion and increase DDP response by modulating the circ-SLCO1B7/miR-139-5p/TPD52 signaling pathway. Targeting this novel signaling pathway may be a new therapeutic strategy to effectively constrain NSCLC development.
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Affiliation(s)
- Shiqing Liu
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Chengping Hu
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Min Li
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Xiangya Lung Cancer Center, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Wolong Zhou
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Ronghao Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, China
| | - Yao Xiao
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
- International Joint Research Center of Minimally Invasive Endoscopic Technology Equipment & Standards, Changsha 410008, China
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50
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Gu A, Jaijyan DK, Yang S, Zeng M, Pei S, Zhu H. Functions of Circular RNA in Human Diseases and Illnesses. Noncoding RNA 2023; 9:38. [PMID: 37489458 PMCID: PMC10366867 DOI: 10.3390/ncrna9040038] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/23/2023] [Accepted: 06/28/2023] [Indexed: 07/26/2023] Open
Abstract
Circular RNAs (circRNAs) represent single-stranded RNA species that contain covalently closed 3' and 5' ends that provide them more stability than linear RNA, which has free ends. Emerging evidence indicates that circRNAs perform essential functions in many DNA viruses, including coronaviruses, Epstein-Barr viruses, cytomegalovirus, and Kaposi sarcoma viruses. Recent studies have confirmed that circRNAs are present in viruses, including DNA and RNA viruses, and play various important functions such as evading host immune response, disease pathogenesis, protein translation, miRNA sponges, regulating cell proliferation, and virus replication. Studies have confirmed that circRNAs can be biological signatures or pathological markers for autoimmune diseases, neurological diseases, and cancers. However, our understanding of circRNAs in DNA and RNA viruses is still limited, and functional evaluation of viral and host circRNAs is essential to completely understand their biological functions. In the present review, we describe the metabolism and cellular roles of circRNA, including its roles in various diseases and viral and cellular circRNA functions. Circular RNAs are found to interact with RNA, proteins, and DNA, and thus can modulate cellular processes, including translation, transcription, splicing, and other functions. Circular RNAs interfere with various signaling pathways and take part in vital functions in various biological, physiological, cellular, and pathophysiological processes. We also summarize recent evidence demonstrating cellular and viral circRNA's roles in DNA and RNA viruses in this growing field of research.
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Affiliation(s)
- Alison Gu
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Dabbu Kumar Jaijyan
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Shaomin Yang
- Department of Pain Medicine and Shenzhen Municipal Key Laboratory for Pain Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen 518052, China
| | - Mulan Zeng
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Shaokai Pei
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
| | - Hua Zhu
- Department of Microbiology and Molecular Genetics, New Jersey Medical School, Rutgers University, 225 Warren Street, Newark, NJ 070101, USA
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