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Kazemi S, Mirzaei R, Karampoor S, Hosseini-Fard SR, Ahmadyousefi Y, Soltanian AR, Keramat F, Saidijam M, Alikhani MY. Circular RNAs in tuberculosis: From mechanism of action to potential diagnostic biomarker. Microb Pathog 2023; 185:106459. [PMID: 37995882 DOI: 10.1016/j.micpath.2023.106459] [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: 05/25/2023] [Revised: 10/01/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis (M. tuberculosis), continues to be a major global health concern. Understanding the molecular intricacies of TB pathogenesis is crucial for developing effective diagnostic and therapeutic approaches. Circular RNAs (circRNAs), a class of single-stranded RNA molecules characterized by covalently closed loops, have recently emerged as potential diagnostic biomarkers in various diseases. CircRNAs have been demonstrated to modulate the host's immunological responses against TB, specifically by reducing monocyte apoptosis, augmenting autophagy, and facilitating macrophage polarization. This review comprehensively explores the roles and mechanisms of circRNAs in TB pathogenesis. We also discuss the growing body of evidence supporting their utility as promising diagnostic biomarkers for TB. By bridging the gap between fundamental circRNA biology and TB diagnostics, this review offers insights into the exciting potential of circRNAs in combatting this infectious disease.
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Affiliation(s)
- Sima Kazemi
- Infectious Disease Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Rasoul Mirzaei
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Sajad Karampoor
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Reza Hosseini-Fard
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Yaghoub Ahmadyousefi
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Hamadan University of Medical Sciences, Hamadan, Iran; Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ali Reza Soltanian
- Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Iran
| | - Fariba Keramat
- Infectious Disease Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Yousef Alikhani
- Infectious Disease Research Center, Hamadan University of Medical Sciences, Hamadan, Iran; Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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2
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Tang S, Cai L, Wang Z, Pan D, Wang Q, Shen Y, Zhou Y, Chen Q. Emerging roles of circular RNAs in the invasion and metastasis of head and neck cancer: Possible functions and mechanisms. CANCER INNOVATION 2023; 2:463-487. [PMID: 38125767 PMCID: PMC10730008 DOI: 10.1002/cai2.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/27/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2023]
Abstract
Head and neck cancer (HNC) is the seventh most prevalent malignancy worldwide in 2020. Cancer metastasis is the main cause of poor prognosis in HNC patients. Recently, circular RNAs (circRNAs), initially thought to have no biological function, are attracting increasing attention, and their crucial roles in mediating HNC metastasis are being extensively investigated. Existing studies have shown that circRNAs primarily function through miRNA sponges, transcriptional regulation, interacting with RNA-binding proteins (RBPs) and as translation templates. Among these functions, the function of miRNA sponge is the most prominent. In this review, we summarized the reported circRNAs involved in HNC metastasis, aiming to elucidate the regulatory relationship between circRNAs and HNC metastasis. Furthermore, we summarized the latest advances in the epidemiological information of HNC metastasis and the tumor metastasis theories, the biogenesis, characterization and functional mechanisms of circRNAs, and their potential clinical applications. Although the research on circRNAs is still in its infancy, circRNAs are expected to serve as prognostic markers and effective therapeutic targets to inhibit HNC metastasis and significantly improve the prognosis of HNC patients.
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Affiliation(s)
- Shouyi Tang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Luyao Cai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Zhen Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Dan Pan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Qing Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Yingqiang Shen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of StomatologySichuan UniversityChengduChina
| | - Yu Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of StomatologySichuan UniversityChengduChina
- State Institute of Drug/Medical Device Clinical TrialWest China Hospital of StomatologyChengduChina
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of StomatologySichuan UniversityChengduChina
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3
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Guo R, Zhang R. Dual effects of circRNA in thyroid and breast cancer. Clin Transl Oncol 2023; 25:3321-3331. [PMID: 37058206 DOI: 10.1007/s12094-023-03173-x] [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: 02/28/2023] [Accepted: 03/21/2023] [Indexed: 04/15/2023]
Abstract
CircRNA, the latest research hotspot in the field of RNA, is a special non-coding RNA molecule, which is unable to encode proteins and bind polyribosomes. As a regulatory molecule, circRNA participates in cancer cell generation and progression mainly through the mechanism of competitive endogenous RNA. In numerous regulated cancer organs, the thyroid and breast are both endocrine organs, and both are regulated by the hypothalamic pituitary gland axis. Thyroid cancer (TC) and breast cancer (BC) are both sexually prevalent in women and both are affected by hormones, thus they are intrinsically linked. In addition, recent epidemiological surveys have found that, early metastasis and recurrence of breast cancer remain the main cause of survival in breast cancer patients. Although at home and abroad, studies have shown that new targeted anti-tumor drugs with numerous tumor markers are gradually being used in the clinic, evidence for potential molecular mechanisms affecting its prognosis lacks clinical studies. Therefore, we search the relevant literature, and based on the latest domestic and international consensus, review the molecular mechanisms and regulation relevance of circRNA, compare the difference of the same circRNA in two tumors, to more deeply understand and lay the foundation for future clinical diagnostic, therapeutic and prognostic studies in large samples.
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Affiliation(s)
- Rina Guo
- Department of Thyroid Breast Surgery, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China.
| | - Rui Zhang
- Department of Thyroid Breast Surgery, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China
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4
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Mafi A, Rismanchi H, Malek Mohammadi M, Hedayati N, Ghorbanhosseini SS, Hosseini SA, Gholinezhad Y, Mousavi Dehmordi R, Ghezelbash B, Zarepour F, Taghavi SP, Asemi Z, Alimohammadi M, Mirzaei H. A spotlight on the interplay between Wnt/β-catenin signaling and circular RNAs in hepatocellular carcinoma progression. Front Oncol 2023; 13:1224138. [PMID: 37546393 PMCID: PMC10403753 DOI: 10.3389/fonc.2023.1224138] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/15/2023] [Indexed: 08/08/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the deadliest cancers due to multifocal development and distant metastasis resulting from late diagnosis. Consequently, new approaches to HCC diagnosis and treatment are required to reduce mortality rates. A large body of evidence suggests that non-coding RNAs (ncRNAs) are important in cancer initiation and progression. Cancer cells release many of these ncRNAs into the blood or urine, enabling their use as a diagnostic tool. Circular RNAs (CircRNAs) are as a members of the ncRNAs that regulate cancer cell expansion, migration, metastasis, and chemoresistance through different mechanisms such as the Wnt/β-catenin Signaling pathway. The Wnt/β-catenin pathway plays prominent roles in several biological processes including organogenesis, stem cell regeneration, and cell survival. Aberrant signaling of both pathways mentioned above could affect the progression and metastasis of many cancers, including HCC. Based on several studies investigated in the current review, circRNAs have an effect on HCC formation and progression by sponging miRNAs and RNA-binding proteins (RBPs) and regulating the Wnt/β-catenin signaling pathway. Therefore, circRNAs/miRNAs or RBPs/Wnt/β-catenin signaling pathway could be considered promising prognostic and therapeutic targets in HCC.
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Affiliation(s)
- Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamidreza Rismanchi
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Seyedeh Sara Ghorbanhosseini
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyed Ali Hosseini
- Research Committee, Department of Immunology, School of Medicine, Shahid Beheshti, University of Medical Sciences, Tehran, Iran
| | - Yasaman Gholinezhad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rohollah Mousavi Dehmordi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Behrooz Ghezelbash
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Zarepour
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Mina Alimohammadi
- Student Research Committee, Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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5
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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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6
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Karami Fath M, Shafieyari S, Ardalani N, Moumivand F, Kaviani Charati H, Zareei M, Mansoori Nia A, Zokaei M, Barati G. Hypoxia-circular RNA crosstalk to promote breast cancer. Pathol Res Pract 2023; 244:154402. [PMID: 36921546 DOI: 10.1016/j.prp.2023.154402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/25/2023] [Accepted: 03/03/2023] [Indexed: 03/07/2023]
Abstract
The expression of hypoxia-inducible factors (HIFs), particularly HIF-1, plays a major role in the adaptation of solid tumors to hypoxic conditions. The activation of the HIF pathway results in an expression of genes involved in the promotion of cell growth, proliferation, vascularization, metastasis, and therapeutic resistance. Circular RNA (CircRNA) is considered as a major regulator of gene expression. CircRNAs could regulate the HIF-1 pathway in cancer cells. In addition, they might be regulated by the HIF-1 pathway to promote cancer progression. Therefore, the crosstalk between hypoxia and circRNA might be involved in the pathogenesis of cancers, including breast cancer. In this review, we discussed the function of HIF-related circRNAs in the progression, angiogenesis, metabolic reprogramming, and stemness maintenance of breast cancer. In addition, the correlation between HIF-related circRNAs and clinical features of breast cancer is reviewed.
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Affiliation(s)
- Mohsen Karami Fath
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Saba Shafieyari
- Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nasim Ardalani
- Faculty of Medicine, Islamic Azad University, Sari Branch, Sari, Iran
| | - Farzane Moumivand
- Faculty of Paramedicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Mohammad Zareei
- Faculty of Medicine, Islamic Azad University, Sari Branch, Sari, Iran
| | | | - Maryam Zokaei
- Department of Food Science and Technology, Faculty of Nutrition Science, Food Science and Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Veterinary Medicine, Beyza Branch, Islamic Azad University, Beyza, Iran
| | - Ghasem Barati
- Department of Medical Biotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran; Stem Cell Technology Research Center, Tehran, Iran.
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7
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Dawoud A, Ihab Zakaria Z, Hisham Rashwan H, Braoudaki M, Youness RA. Circular RNAs: New layer of complexity evading breast cancer heterogeneity. Noncoding RNA Res 2023; 8:60-74. [PMID: 36380816 PMCID: PMC9637558 DOI: 10.1016/j.ncrna.2022.09.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/04/2022] [Accepted: 09/30/2022] [Indexed: 11/23/2022] Open
Abstract
Advances in high-throughput sequencing techniques and bioinformatic analysis have refuted the "junk" RNA hypothesis that was claimed against non-coding RNAs (ncRNAs). Circular RNAs (circRNAs); a class of single-stranded covalently closed loop RNA molecules have recently emerged as stable epigenetic regulators. Although the exact regulatory role of circRNAs is still to be clarified, it has been proven that circRNAs could exert their functions by interacting with other ncRNAs or proteins in their own physiologically authentic environment, regulating multiple cellular signaling pathways and other classes of ncRNAs. CircRNAs have also been reported to exhibit a tissue-specific expression and have been associated with the malignant transformation process of several hematological and solid malignancies. Along this line of reasoning, this review aims to highlight the importance of circRNAs in Breast Cancer (BC), which is ranked as the most prevalent malignancy among females. Notwithstanding the substantial efforts to develop a suitable anticancer therapeutic regimen against the heterogenous BC, inter- and intra-tumoral heterogeneity have resulted in an arduous challenge for drug development research, which in turn necessitates the investigation of other markers to be therapeutically targeted. Herein, the potential of circRNAs as possible diagnostic and prognostic biomarkers have been highlighted together with their possible application as novel therapeutic targets.
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Affiliation(s)
- Alyaa Dawoud
- Molecular Genetics Research Team (MGRT), Pharmaceutical Biology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835, Cairo, Egypt
- Biochemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835, Cairo, Egypt
| | - Zeina Ihab Zakaria
- Molecular Genetics Research Team (MGRT), Pharmaceutical Biology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835, Cairo, Egypt
| | - Hannah Hisham Rashwan
- Molecular Genetics Research Team (MGRT), Pharmaceutical Biology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835, Cairo, Egypt
| | - Maria Braoudaki
- Clinical, Pharmaceutical, and Biological Science Department, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, AL10 9AB, UK
| | - Rana A. Youness
- Molecular Genetics Research Team (MGRT), Pharmaceutical Biology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835, Cairo, Egypt
- Clinical, Pharmaceutical, and Biological Science Department, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, AL10 9AB, UK
- Biology and Biochemistry Department, School of Life and Medical Sciences, University of Hertfordshire hosted By Global Academic Foundation, New Administrative Capital, 11586, Cairo, Egypt
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8
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The Tumorigenic Role of Circular RNA-MicroRNA Axis in Cancer. Int J Mol Sci 2023; 24:ijms24033050. [PMID: 36769372 PMCID: PMC9917898 DOI: 10.3390/ijms24033050] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of endogenous RNAs that control gene expression at the transcriptional and post-transcriptional levels. Recent studies have increasingly demonstrated that circRNAs act as novel diagnostic biomarkers and promising therapeutic targets for numerous cancer types by interacting with other non-coding RNAs such as microRNAs (miRNAs). The miRNAs are presented as crucial risk factors and regulatory elements in cancer by regulating the expression of their target genes. Some miRNAs are derived from transposable elements (MDTEs) that can transfer their location to another region of the genome. Genetic interactions between miRNAs and circular RNAs can form complex regulatory networks with various carcinogenic processes that play critical roles in tumorigenesis and cancer progression. This review focuses on the biological regulation of the correlative axis among circular RNAs, miRNAs, and their target genes in various cancer types and suggests the biological importance of MDTEs interacting with oncogenic or tumor-suppressive circRNAs in tumor progression.
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Ye H, Sun X, Ding Q, Yang E, Zhao S, Fan X, Fang M, Ding X. The Emerging Roles of circRNAs in Papillary Thyroid Carcinoma: Molecular Mechanisms and Biomarker Potential. Protein Pept Lett 2023; 30:709-718. [PMID: 37537939 DOI: 10.2174/0929866530666230804104057] [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: 02/22/2023] [Revised: 05/27/2023] [Accepted: 05/27/2023] [Indexed: 08/05/2023]
Abstract
Papillary thyroid carcinoma (PTC) is a common endocrine malignant tumor. The incidence of PTC has increased in the past decades and presents a younger trend. Accumulating evidence indicates that circular RNAs (circRNAs), featured with non-linear, closed-loop structures, play pivotal roles in tumorigenesis and regulate cell biological processes, such as proliferation, migration, and invasion, by acting as microRNA (miRNA) sponges. Additionally, due to their unique stability, circRNAs hold promising potential as diagnostic biomarkers and effective therapeutic targets for PTC treatment. In this review, we systematically arrange the expression level of circRNAs, related clinical characteristics, circRNA-miRNA-mRNA regulatory network, and molecular mechanisms. Furthermore, related signaling pathways and their potential ability of diagnostic biomarkers and therapeutic targets are discussed, which might provide a new strategy for PTC diagnosis, monitoring, and prognosis.
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Affiliation(s)
- Haihan Ye
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310023, P.R. China
| | - Xiaoyang Sun
- Department of Molecular Genetics, Faculty of Medicine, University of Toronto, Toronto, M5S2E8, Canada
| | - Qianyun Ding
- Department of 'A', The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, 310023, P.R. China
| | - Enyu Yang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310023, P.R. China
| | - Shuo Zhao
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310023, P.R. China
| | - Xiaowei Fan
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310023, P.R. China
| | - Meiyu Fang
- Department of Rare and Head and Neck Oncology, Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, Zhejiang, 310005, P.R. China
| | - Xianfeng Ding
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310023, P.R. China
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A Review and In Silico Analysis of Tissue and Exosomal Circular RNAs: Opportunities and Challenges in Thyroid Cancer. Cancers (Basel) 2022; 14:cancers14194728. [PMID: 36230649 PMCID: PMC9564022 DOI: 10.3390/cancers14194728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Thyroid cancer is the most common endocrine neoplasm. Recently, knowledge of the molecular genetic changes of thyroid cancer has dramatically improved. Understanding the roles of these molecular changes in thyroid cancer tumorigenesis and progression is essential in developing a successful treatment strategy and improving disease outcomes. As a family of non-coding RNAs, circular RNAs (circRNAs) have been involved in several aspects of the physiological and pathological processes of the cells. The roles of circRNAs in cancer development and progress are evident. In the current review, we aimed to explore the clinical potential of circRNAs as potential diagnostic, prognostic, and therapeutic targets in thyroid cancer. Furthermore, screening the genome-wide circRNAs and performing functional enrichment analyses for all associated dysregulated circRNAs in thyroid cancer have been done. Given the unique advantages circRNAs have, such as superior stability, higher abundance, and presence in different body fluids, this family of non-coding RNAs could be promising diagnostic and prognostic biomarkers and potential therapeutic targets for thyroid cancer. Abstract Thyroid cancer (TC) is the most common endocrine tumor. The genetic and epigenetic molecular alterations of TC have become more evident in recent years. However, a deeper understanding of the roles these molecular changes play in TC tumorigenesis and progression is essential in developing a successful treatment strategy and improving patients’ prognoses. Circular RNAs (circRNAs), a family of non-coding RNAs, have been implicated in several aspects of carcinogenesis in multiple cancers, including TC. In the current review, we aimed to explore the clinical potential of circRNAs as putative diagnostic, prognostic, and therapeutic targets in TC. The current analyses, including genome-wide circRNA screening and functional enrichment for all deregulated circRNA expression signatures, show that circRNAs display atypical contributions, such as sponging for microRNAs, regulating transcription and translation processes, and decoying for proteins. Given their exceptional clinical advantages, such as higher stability, wider abundance, and occurrence in several body fluids, circRNAs are promising prognostic and theranostic biomarkers for TC.
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11
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Xu WB, Kotheeranurak V, Zhang HL, Feng JY, Liu JW, Chen CM, Lin GX, Rui G. Identification of the circRNA–miRNA–mRNA regulatory network in osteoarthritis using bioinformatics analysis. Front Genet 2022; 13:994163. [PMID: 36186471 PMCID: PMC9523487 DOI: 10.3389/fgene.2022.994163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Osteoarthritis (OA) is a degenerative joint disease that seriously affects the quality of people. Unfortunately, the pathogenesis of OA has not been fully known. Therefore, this study aimed to construct a ceRNA regulatory network related to OA to explore the pathogenesis of OA.Methods: Differentially expressed circRNAs (DEcircRNAs), microRNAs (DEmiRNAs), and mRNAs (DEmRNAs) were obtained from the Gene Expression Omnibus microarray data (GSE175959, GSE105027, and GSE169077). The miRNA response elements and target mRNAs were identified using bioinformatics approaches. Additionally, a circRNA–miRNA–mRNA network was established using Cytoscape version 3.8.0. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses of mRNAs in the network were conducted to explore the possible mechanisms underlying OA development. Protein–protein interaction (PPI) analysis was performed to determine the hub genes. Based on the hub genes, a sub network was constructed using Cytoscape 3.8.0 version. Finally, connectivity map (CMap) and drug–gene interaction database (DGIdb) analyses were performed to identify the potential therapeutic targets for OA.Results: Altogether, five DEcircRNAs, 89 DEmiRNAs, and 345 DEmRNAs were identified. Moreover, a circRNA–miRNA–mRNA network was established using three circRNAs, seven miRNAs, and 37 mRNAs. GO and KEGG analyses demonstrated that the mRNAs in the network could be related to the occurrence and development of OA. PPI analysis was performed and six key genes, namely serpin family H member 1 [SERPINH1], collagen type VIII alpha 2 chain [COL8A2], collagen type XV alpha 1 chain [COL15A1], collagen type VI alpha 3 chain [COL6A3], collagen type V alpha 1 chain [COL5A1], and collagen type XI alpha 1 chain [COL11A1], were identified. Furthermore, a circRNA–miRNA–hub gene subnetwork was established in accordance with two circRNAs (hsa_circ_0075320 and hsa_circ_0051428), two miRNAs (hsa-miR-6124 and hsa-miR-1207-5p), and six hub genes (COL11A1, SERPINH1, COL6A3, COL5A1, COL8A2, and COL15A1). Finally, three chemicals (noscapine, diazepam, and TG100-115) based on CMap analysis and two drugs (collagenase Clostridium histolyticum and ocriplasmin) based on DGIdb were discovered as potential treatment options for OA.Conclusion: This study presents novel perspectives on the pathogenesis and treatment of OA based on circRNA-related competitive endogenous RNA regulatory networks.
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Affiliation(s)
- Wen-Bin Xu
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Vit Kotheeranurak
- Department of Orthopedics, Faculty of Medicine, Chulalongkorn University, and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
- Center of Excellence in Biomechanics and Innovative Spine Surgery, Chulalongkorn University, Bangkok, Thailand
| | - Huang-Lin Zhang
- The Third Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China
| | - Jin-Yi Feng
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Jing-Wei Liu
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Chien-Min Chen
- Division of Neurosurgery, Department of Surgery, Changhua Christian Hospital, Changhua, Taiwan
- Department of Leisure Industry Management, National Chin-Yi University of Technology, Taichung, Taiwan
- School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- *Correspondence: Chien-Min Chen, ; Guang-Xun Lin, ; Gang Rui,
| | - Guang-Xun Lin
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- The Third Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China
- *Correspondence: Chien-Min Chen, ; Guang-Xun Lin, ; Gang Rui,
| | - Gang Rui
- Department of Orthopedics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- The Third Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China
- *Correspondence: Chien-Min Chen, ; Guang-Xun Lin, ; Gang Rui,
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Liu Z, Zhang W, Tu C, Li W, Qi L, Zhang Z, Wan L, Yang Z, Ren X, Li Z. Prognostic and clinicopathologic significance of circZFR in multiple human cancers. World J Surg Oncol 2022; 20:268. [PMID: 36008845 PMCID: PMC9413939 DOI: 10.1186/s12957-022-02733-9] [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: 03/22/2022] [Accepted: 08/17/2022] [Indexed: 11/24/2022] Open
Abstract
Background Abnormally expressed in diverse cancers, circZFR has been correlated with clinical outcomes of cancer patients. Aim of this meta-analysis was to elucidate the prognostic role of circZFR in multiple human malignancies. Methods Literature retrieval was conducted by systematically searching on Pubmed, Web of Science, and the Cochrane Library up to December 2nd, 2021. Hazard ratios (HRs) or odds ratios (ORs) with 95% confidence intervals (CIs) were pooled to evaluate the association between circZFR expression and overall survival (OS). The reliability of the pooled results was assessed through sensitivity analysis and the publication bias was measured by Begg’s and Egger’s test. Results A total of seventeen studies comprising 1098 Chinese patients were enrolled in this meta-analysis. Results demonstrated that high circZFR expression was correlated with an unfavorable OS (HR = 2.14, 95% CI 1.74, 2.64). High circZFR expression predicted larger tumor size (OR = 2.79, 95% CI 1.52, 5.12), advanced clinical stage (OR = 3.38, 95% CI 1.49, 7.65), tendentiousness of lymph node metastasis (LNM) (OR = 3.08, 95% CI 2.01, 4.71), and malignant grade (OR = 3.18, 95% CI 1.09, 9.30), but not related to age, gender, and distant metastasis (DM). Conclusions High circZFR expression was associated with unfavorable OS and clinicopathologic parameters including tumor size, clinical stage, LNM, and histology grade, implicating a promising prognostic factor in cancers. Supplementary Information The online version contains supplementary material available at 10.1186/s12957-022-02733-9.
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Affiliation(s)
- Zhongyue Liu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Wenchao Zhang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Chao Tu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Wenyi Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Lin Qi
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Zhiming Zhang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Lu Wan
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Zhimin Yang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China
| | - Xiaolei Ren
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China. .,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.
| | - Zhihong Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China. .,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.
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13
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Wang L, Wang W, Cai Y, Zhou Y, Jiang J, Ning Y, Shui C, Sun R, Wang Y, Li C. RETRACTED ARTICLE: Circ-NUP214 Promotes Papillary Thyroid Carcinoma Tumorigenesis by Regulating HK2 Expression Through miR-15a-5p. Biochem Genet 2022; 60:1408. [PMID: 35099648 DOI: 10.1007/s10528-022-10192-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 01/18/2022] [Indexed: 01/15/2023]
Affiliation(s)
- Ling Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Southwest Medical University, No. 55, 4th Section of Southern Renmin Road, Chengdu, Sichuan, China
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Wei Wang
- Department of Head and Neck Surgery, Sichuan Cancer Hospital, Sichuan Cancer Research Institute, Sichuan Cancer Prevention and Cure Center, Cancer Hospital Affiliate to School of Medicine, Chengdu, Sichuan, China
| | - Yongcong Cai
- Department of Head and Neck Surgery, Sichuan Cancer Hospital, Sichuan Cancer Research Institute, Sichuan Cancer Prevention and Cure Center, Cancer Hospital Affiliate to School of Medicine, Chengdu, Sichuan, China
| | - Yuqiu Zhou
- Department of Head and Neck Surgery, Sichuan Cancer Hospital, Sichuan Cancer Research Institute, Sichuan Cancer Prevention and Cure Center, Cancer Hospital Affiliate to School of Medicine, Chengdu, Sichuan, China
| | - Jian Jiang
- Department of Head and Neck Surgery, Sichuan Cancer Hospital, Sichuan Cancer Research Institute, Sichuan Cancer Prevention and Cure Center, Cancer Hospital Affiliate to School of Medicine, Chengdu, Sichuan, China
| | - Yudong Ning
- Department of Head and Neck Surgery, Sichuan Cancer Hospital, Sichuan Cancer Research Institute, Sichuan Cancer Prevention and Cure Center, Cancer Hospital Affiliate to School of Medicine, Chengdu, Sichuan, China
| | - Chunyan Shui
- Department of Head and Neck Surgery, Sichuan Cancer Hospital, Sichuan Cancer Research Institute, Sichuan Cancer Prevention and Cure Center, Cancer Hospital Affiliate to School of Medicine, Chengdu, Sichuan, China
| | - Ronghao Sun
- Department of Head and Neck Surgery, Sichuan Cancer Hospital, Sichuan Cancer Research Institute, Sichuan Cancer Prevention and Cure Center, Cancer Hospital Affiliate to School of Medicine, Chengdu, Sichuan, China
| | - Yi Wang
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Chao Li
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Southwest Medical University, No. 55, 4th Section of Southern Renmin Road, Chengdu, Sichuan, China.
- Department of Head and Neck Surgery, Sichuan Cancer Hospital, Sichuan Cancer Research Institute, Sichuan Cancer Prevention and Cure Center, Cancer Hospital Affiliate to School of Medicine, Chengdu, Sichuan, China.
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14
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Yao X, Zhang Q. Function and Clinical Significance of Circular RNAs in Thyroid Cancer. Front Mol Biosci 2022; 9:925389. [PMID: 35936780 PMCID: PMC9353217 DOI: 10.3389/fmolb.2022.925389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/22/2022] [Indexed: 12/28/2022] Open
Abstract
Thyroid cancer (TC) is the leading cause and mortality of endocrine malignancies worldwide. Tumourigenesis involves multiple molecules including circular RNAs (circRNAs). circRNAs with covalently closed single-stranded structures have been identified as a type of regulatory RNA because of their high stability, abundance, and tissue/developmental stage-specific expression. Accumulating evidence has demonstrated that various circRNAs are aberrantly expressed in thyroid tissues, cells, exosomes, and body fluids in patients with TC. CircRNAs have been identified as either oncogenic or tumour suppressor roles in regulating tumourigenesis, tumour metabolism, metastasis, ferroptosis, and chemoradiation resistance in TC. Importantly, circRNAs exert pivotal effects on TC through various mechanisms, including acting as miRNA sponges or decoys, interacting with RNA-binding proteins, and translating functional peptides. Recent studies have suggested that many different circRNAs are associated with certain clinicopathological features, implying that the altered expression of circRNAs may be characteristic of TC. The purpose of this review is to provide an overview of recent advances on the dysregulation, functions, molecular mechanisms and potential clinical applications of circRNAs in TC. This review also aimes to improve our understanding of the functions of circRNAs in the initiation and progression of cancer, and to discuss the future perspectives on strategies targeting circRNAs in TC.
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15
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Cao F, Liu S, Li Z, Meng L, Sang M, Shan B. Activation of circ_0072088/miR-1261/PIK3CA pathway accelerates lung adenocarcinoma progression. Thorac Cancer 2022; 13:1548-1557. [PMID: 35474604 PMCID: PMC9161339 DOI: 10.1111/1759-7714.14369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/13/2022] [Accepted: 02/14/2022] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) are involved in the tumorigenesis and progression of lung adenocarcinoma (LUAD). This study aimed to determine the role of circ_0072088 in LUAD. METHODS The existence and expression of circ_0072088 in human LUAD tissues and cell lines were determined through Sanger sequencing, quantitative reverse transcription-polymerase chain reaction, and fluorescence in situ hybridization (FISH). Subsequently, the biological role of circ_0072088 was examined using loss-of-function assays in H1299 cells. Moreover, circ_0072088/miR-1261/PIK3CA pathway-mediated biological effects in H1299 were verified using bioinformatic prediction and experiments, including interaction analysis (FISH, luciferase reporter, and RNA-pulldown assays), and tumor biological function test (CCK8 and colony formation, wound healing, and transwell assays). Finally, miR-1261 and PIK3CA expression and LUAD patient survival were further analyzed using FISH, immunohistochemical staining, and the Kaplan-Meier plotter database, respectively. RESULTS First, an increase in circ_0072088 was confirmed in human LUAD tissues. Thereafter, it was mainly localized in the cytoplasm and was found to enhance cell proliferation, migration, and invasion of H1299 cells. Mechanistically, circ_0072088 directly downregulated miR-1261 expression, whereas increased PIK3CA gene expression was associated with poor overall survival of LUAD patients. The activation of the circ_0072088/miR-1261/PIK3CA regulatory pathway may play a significant role in the tumorigenesis and progression of LUAD. CONCLUSIONS Circ_0072088-dependent regulation of miR-1261/PIK3CA is important for cell proliferation, migration, and invasion during the tumorigenesis and progression of LUAD, warranting the need to consider the circ_0072088/miR-1261/PIK3CA regulatory pathway as a potential therapeutic target in patients with lung adenocarcinoma.
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Affiliation(s)
- Feng Cao
- Department of Radiation Oncologythe Fourth Hospital of HebeiMedical UniversityShijiazhuangChina
| | - Sihua Liu
- Research Center, the Fourth Hospital of HebeiMedical UniversityShijiazhuangChina
| | - Ziyi Li
- Research Center, the Fourth Hospital of HebeiMedical UniversityShijiazhuangChina
| | - Lingjiao Meng
- Research Center, the Fourth Hospital of HebeiMedical UniversityShijiazhuangChina
| | - Meixiang Sang
- Research Center, the Fourth Hospital of HebeiMedical UniversityShijiazhuangChina
| | - Baoen Shan
- Research Center, the Fourth Hospital of HebeiMedical UniversityShijiazhuangChina
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16
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Zhu C, Feng Z, Hong F, Sun H, Wang Z, Zhao Z, Zhang F. The predictive value of circular RNAs in the diagnosis, prognosis and clinicopathological features of thyroid cancer: A systematic review and meta-analysis. Pathol Res Pract 2022; 236:153871. [DOI: 10.1016/j.prp.2022.153871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/16/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
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17
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Tian X, Yang H, Fang Q, Quan H, Lu H, Wang X. Circ_ZFR affects FABP7 expression to regulate breast cancer progression by acting as a sponge for miR-223-3p. Thorac Cancer 2022; 13:1369-1380. [PMID: 35355424 PMCID: PMC9058297 DOI: 10.1111/1759-7714.14401] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Breast cancer (BC) is a common malignancy in women. Circular RNAs (circRNAs) have been reported to play a key role in the development of BC; however, the effect of circular RNA zinc finger RNA binding protein (circ_ZFR) in BC is unknown. METHODS Abundances of circ_ZFR, fatty acid binding protein 7 (FABP7), and microRNA-223-3p (miR-223-3p) were measured by quantitative real-time polymerase chain reaction (qRT-PCR). The circular structure of circ_ZFR was validated by RNase R treatment. Cell proliferation, migration, invasion, and apoptosis were assessed by colony formation, cell counting kit-8, Transwell, flow cytometry assays, respectively. All protein levels were determined by Western blot. Dual-luciferase reporter assay was used to confirm the relationship between miR-223-3p and circ_ZFR or FABP7. A xenograft model was established to understand the effect of circ_ZFR on BC cell growth in vivo. RESULTS The expression levels of circ_ZFR and FABP7 were higher in BC tissues and cell lines, whereas miR-223-3p expression was lower. Knockdown of circ_ZFR or FABP7 in BC cells reduced proliferation, migration, invasion, and epithelial mesenchymal transition (EMT), and induced apoptosis in vitro, whereas the opposite effects were observed in circ_ZFR-overexpressed cells. Furthermore, circ_ZFR might act as a sponge for miR-223-3p to regulate FABP7 expression, thereby promoting the progression of BC cells in vitro and in vivo. CONCLUSION Circ_ZFR might act as a miRNA sponge for miR-223-3p to regulate FABP7, thereby promoting proliferation, migration, invasion, and EMT of BC cells, and inhibiting cell apoptosis.
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Affiliation(s)
- Xiuling Tian
- Department of Oncology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Hong Yang
- Department of Oncology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Qian Fang
- Department of General Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Hongmei Quan
- Department of Oncology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Hongyu Lu
- Department of Oncology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Xin Wang
- Department of General Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
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18
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Shifman BM, Platonova NM, Vasilyev EV, Abdulkhabirova FM, Kachko VA. Circular RNAs and thyroid cancer: closed molecules, open possibilities. Crit Rev Oncol Hematol 2022; 173:103662. [PMID: 35341987 DOI: 10.1016/j.critrevonc.2022.103662] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/22/2022] [Accepted: 03/22/2022] [Indexed: 12/17/2022] Open
Abstract
Thyroid neoplasms requiring differential diagnosis between thyroid cancer and benign tumors can be detected in more than half of the healthy population. A generally accepted method that allows assessing the risk of malignant potential and determining the indications for surgical treatment of thyroid tumor is a fine-needle aspiration biopsy followed by a cytological examination. Nevertheless, in patients with indeterminate categories of cytological conclusions according to Bethesda system, the positive predictive value of the cytology result is significantly lower than desired and often leads to unjustified surgical treatment. In this regard, the search for alternative diagnostic solutions continues. Circular RNAs are a group of non-coding RNAs distinguished by a closed structure formed by covalent bonding of the nucleotide chain ends. Recent studies allow us to conclude that many different circular RNAs are involved in processes mediating oncogenesis in the thyroid gland, and their altered expression in tissue, blood, and exosomes of plasma may be a characteristic sign of thyroid cancer and certain clinicopathological features of its course. The purpose of this review is to analyze the accumulated data on the association of various circular RNAs with thyroid cancer and to discuss possible ways to improve the diagnosis and treatment of the disease based on the assessment of the expression of these molecules.
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Papaioannou M, Chorti AG, Chatzikyriakidou A, Giannoulis K, Bakkar S, Papavramidis TS. MicroRNAs in Papillary Thyroid Cancer: What Is New in Diagnosis and Treatment. Front Oncol 2022; 11:755097. [PMID: 35186709 PMCID: PMC8851242 DOI: 10.3389/fonc.2021.755097] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 12/08/2021] [Indexed: 12/12/2022] Open
Abstract
Introduction Papillary thyroid cancer (PTC) accounts for up to 80% of thyroid malignancies. New diagnostic and therapeutic options are suggested including innovative molecular methods. MicroRNAs (miRNAs) are nonprotein coding single-stranded RNAs that regulate many cell processes. The aim of the present study is to review the deregulated miRNAs associated with PTCs. Methods A bibliographic research was conducted, resulting in 272 articles referred to miRNAs and PTC. Regarding our exclusion criteria, 183 articles were finally included in our review. Results A remarkably large number of miRNAs have been found to be deregulated during PTC manifestation in the literature. The deregulated miRNAs are detected in tissue samples, serum/plasma, and FNA samples of patients with PTC. These miRNAs are related to several molecular pathways, involving genes and proteins responsible for important biological processes. MiRNA deregulation is associated with tumor aggressiveness, including larger tumor size, multifocality, extrathyroidal extension, lymphovascular invasion, lymph node and distant metastasis, and advanced tumor node metastasis stage. Conclusion MiRNAs are proposed as new diagnostic and therapeutic tools regarding PTC. They could be essential biomarkers for PTC diagnosis applied in serum and FNA samples, while their contribution to prognosis is of great importance.
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Affiliation(s)
- Maria Papaioannou
- Laboratory of Biological Chemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Angeliki G. Chorti
- 1st Propedeutic Department of Surgery, American Hellenic Educational Progressive Association (AHEPA) University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anthoula Chatzikyriakidou
- Laboratory of Medical Biology, School of Medicine, Faculty of Health Science, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kleanthis Giannoulis
- 1st Propedeutic Department of Surgery, American Hellenic Educational Progressive Association (AHEPA) University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sohail Bakkar
- Department of Surgery, Faculty of Medicine, The Hashemite University, Zarqa, Jordan
| | - Theodosios S. Papavramidis
- 1st Propedeutic Department of Surgery, American Hellenic Educational Progressive Association (AHEPA) University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
- *Correspondence: Theodosios S. Papavramidis,
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Liu L, Wang H, Yu S, Gao X, Liu G, Sun D, Jiang X. An Update on the Roles of circRNA-ZFR in Human Malignant Tumors. Front Cell Dev Biol 2022; 9:806181. [PMID: 35186956 PMCID: PMC8848330 DOI: 10.3389/fcell.2021.806181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 12/16/2021] [Indexed: 01/11/2023] Open
Abstract
CircRNAs (circular RNAs) are single-stranded RNAs that form covalently closed loops and function as important regulatory elements of the genome through multiple mechanisms. Increasing evidence had indicated that circRNAs, which might serve as either oncogenes or tumor suppressors, played vital roles in the pathophysiology of human diseases, especially in tumorigenesis and progression. CircRNA-ZFR (circular RNA zinc finger RNA binding protein) is a circular RNA that had attracted much attention in recent years. It has been found that circRNA-ZFR was abnormally expressed in a variety of malignant tumors, and its dysregulated expression was closely related to tumor stage, cancer metastasis and patients’ prognosis. Recent studies had shown that aberrantly expressed circRNA-ZFR could regulate the malignant biological behaviors of tumors through various mechanisms; further exploration of circRNA-ZFR expression in tumors and its regulation on malignant biological behaviors such as tumor proliferation, invasion and drug resistance will provide new ideas for clinical tumors diagnosis and treatment.
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21
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Zhang L, Wu Y, Hou C, Li F. Circ_0072088 knockdown contributes to cisplatin sensitivity and inhibits tumor progression by miR-944/LASP1 axis in non-small cell lung cancer. J Gene Med 2022; 24:e3414. [PMID: 35106879 DOI: 10.1002/jgm.3414] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 12/09/2021] [Accepted: 01/24/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is an aggressive tumor that accounts for a high rate in cancer-related deaths. Cisplatin (CDDP) has been utilized to treat NSCLC. However, the efficacy of CDDP is usually restrained owing to the development of drug resistance. This study aims to reveal the molecular mechanism related to the resistance of NSCLC cells to CDDP. METHODS The expression levels of circRNA_0072088 (circ_0072088), microRNA-944 (miR-944) and LIM and SH3 protein 1 (LASP1) were detected by quantitative real-time PCR (qRT-PCR) in CDDP-resistant NSCLC tissues and cells. Protein expression was determined by Western blotting in CDDP-resistant NSCLC tissues and cells. The functional effects of circ_0072088, miR-944 and LASP1 on CDDP sensitivity and NSCLC progression were revealed by cell counting kit-8 (CCK-8), flow cytometry, cell colony formation, wound-healing and transwell invasion assays. The binding relationship between miR-944 and circ_0072088 or LASP1 was identified by a dual-luciferase reporter or RNA immunoprecipitation assay. The effects of circ_0072088 knockdown on tumor growth in vivo were analyzed by an in vivo tumor formation assay. RESULTS Circ_0072088 and LASP1 expression were significantly upregulated, while miR-944 expression was downregulated in CDDP-resistant NSCLC tissues and cells as compared to control groups. Circ_0072088 expression was significantly associated with tumor-node-metastasis stages and tumor size. Functionally, circ_0072088 knockdown improved CDDP sensitivity and repressed NSCLC cell malignancy, whereas miR-944 inhibitor hindered these effects. Mechanistically, circ_0072088 functioned as a sponge for miR-944 and miR-944 targeted LASP1. Circ_0072088 knockdown improved the sensitivity of tumor to CDDP in vivo. CONCLUSION Circ_0072088 silencing improved CDDP sensitivity and inhibited NSCLC progression by downregulating LASP1 expression through sponging miR-944. These data provided a novel insight into the study on the resistance of NSCLC to CDDP.
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Affiliation(s)
- Lei Zhang
- Department of Diagnostics of Traditional Chinese Medicine, Basic Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yuanzhou Wu
- Department of Thoracic Surgery, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Chunyang Hou
- Department of infection, The Sixth People's Hospital of Shenyang, Shenyang City, Liaoning Province, China
| | - Fangzhi Li
- Department of The First Pulmonary and Critical Care Medicine, The Fourth Affiliated Hospital of China Medical University, Shenyang City, Liaoning Province, China
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22
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Chen H, Li Q, Yi R, Li B, Xiong D, Peng H. CircRNA casein kinase 1 gamma 1 (circ-CSNK1G1) plays carcinogenic effects in thyroid cancer by acting as miR-149-5p sponge and relieving the suppression of miR-149-5p on mitogen-activated protein kinase 1 (MAPK1). J Clin Lab Anal 2022; 36:e24188. [PMID: 35023214 PMCID: PMC8841138 DOI: 10.1002/jcla.24188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/18/2021] [Accepted: 12/08/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The initiation and development of thyroid cancer may be associated with the deregulation of circular RNAs (circRNAs). The purpose of this work was to explore the role of circRNA casein kinase 1 gamma 1 (circ-CSNK1G1) in thyroid cancer. METHODS The expression of circ-CSNK1G1, miR-149-5p, and mitogen-activated protein kinase 1 (MAPK1) was concluded using quantitative real-time PCR (qPCR), and the expression of MAPK1 protein was detected by Western blot assay. Cell viability was monitored by CCK-8 assay. Cell proliferation was determined by colony formation assay and EdU assay. Cell apoptosis and cycle were checked by flow cytometry assay. Cell invasion was determined by transwell assay. The predicted binding relationship between miR-149-5p and circ-CSNK1G1 or MAPK1 was verified by dual-luciferase reporter assay. The role of circ-CSNK1G1 in vivo was determined by establishing animal models. RESULTS The present work discovered the upregulation of circ-CSNK1G1 in tumor tissues of thyroid cancer. In function, circ-CSNK1G1 knockdown inhibited proliferation, survival, and invasion in cancer cells, and tumor growth in mouse models. MiR-149-5p was a target of circ-CSNK1G1, and the anti-tumor effects of circ-CSNK1G1 knockdown were abolished by miR-149-5p downregulation. In addition, miR-149-5p directly targeted MAPK1, and miR-149-5p restoration-inhibited cell proliferation and invasion were recovered by MAPK1 overexpression. CONCLUSION Circ-CSNK1G1 acted as miR-149-5p to relieve the inhibition of miR-149-5p on MAPK1, thus promoting the malignant development of thyroid cancer.
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Affiliation(s)
- Huan Chen
- Department of Endocrine-metabolic, Yichun People's Hospital, Yichun, China
| | - Qin Li
- Department of Endocrine-metabolic, Yichun People's Hospital, Yichun, China
| | - Rong Yi
- Department of Endocrine-metabolic, Yichun People's Hospital, Yichun, China
| | - Baiyun Li
- Department of Endocrine-metabolic, Yichun People's Hospital, Yichun, China
| | - Dongling Xiong
- Department of Endocrine-metabolic, Yichun People's Hospital, Yichun, China
| | - Hui Peng
- Department of Endocrine-metabolic, Yichun People's Hospital, Yichun, China
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CircLDLR Promotes Papillary Thyroid Carcinoma Tumorigenicity by Regulating miR-637/LMO4 Axis. DISEASE MARKERS 2021; 2021:3977189. [PMID: 34925640 PMCID: PMC8677406 DOI: 10.1155/2021/3977189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/03/2021] [Accepted: 11/15/2021] [Indexed: 12/27/2022]
Abstract
Background Circular RNAs (circRNAs) have been reported to play important roles in the development and progression of papillary thyroid carcinoma (PTC). However, the function and molecular mechanism of circRNA low-density lipoprotein receptor (circLDLR) in the tumorigenesis of PTC remain unknown. Results In this study, circLDLR was found to be markedly upregulated in PTC tissues and cell lines, and knockdown of circLDLR inhibited PTC cell proliferation, migration, and invasion but induced apoptosis in vitro. Moreover, circLDLR acted as a sponge for miR-637, and miR-637 interference reversed the anticancer effects of circLDLR knockdown on PTC cells. LMO4 was verified to be a target of miR-637; LMO4 upregulation abolished miR-637 mediated inhibition of cell growth and metastasis in PTC. Additionally, circLDLR could indirectly modulate LMO4 via acting as a sponge of miR-637 in PTC cells. Besides that, xenograft analysis showed that circLDLR knockdown suppressed tumor growth in vivo via regulating LMO4 and miR-637. Conclusion Taken together, these results demonstrated that circLDLR promoted PTC tumorigenesis through miR-637/LMO4 axis, which may provide a novel insight into the understanding of PTC tumorigenesis and be useful in developing potential targets for PTC treatment.
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Xu R, Yin S, Zheng M, Pei X, Ji X. Circular RNA circZFR Promotes Hepatocellular Carcinoma Progression by Regulating miR-375/HMGA2 Axis. Dig Dis Sci 2021; 66:4361-4373. [PMID: 33433801 DOI: 10.1007/s10620-020-06805-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 12/17/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND Mounting evidence indicates that circular RNAs (circRNAs) have vital roles in human diseases, especially in cancers. AIMS The aim of this study was to explore the biological functions and underlying mechanism of circRNA zinc finger RNA binding (circZFR) in hepatocellular carcinoma (HCC). METHODS The expression levels of circZFR, microRNA-375 (miR-375) and high mobility group A2 (HMGA2) were detected by qRT-PCR or western blot assay. Glycolytic metabolism was examined via the measurement of extracellular acidification rate, oxygen consumption rate, glucose uptake, lactate production, and ATP level. MTT assay and flow cytometry were used to assess cell proliferation and cell apoptosis, respectively. The interaction between miR-375 and circZFR or HMGA2 was verified by dual-luciferase reporter and RNA Immunoprecipitation (RIP) assays. The mice xenograft model was established to investigate the role of circZFR in vivo. RESULTS CircZFR and HMGA2 were upregulated while miR-375 was downregulated in HCC tissues and cells. CircZFR silence inhibited HCC progression by inhibiting cell proliferation, glycolysis and tumor growth and promoting apoptosis. MiR-375 was a direct target of circZFR and its knockdown reversed the inhibitory effect of circZFR silence on the progression of HCC cells. Moreover, HMGA2 was a downstream target of miR-375, and miR-375 suppressed proliferation and glycolysis and induced apoptosis by targeting HMGA2 in HCC cells. Besides, circZFR acted as a molecular sponge of miR-375 to regulate HMGA2 expression. CONCLUSION Knockdown of circZFR suppressed the progression of HCC by upregulating miR-375 and downregulating HMGA2, providing new insight into the pathogenesis of HCC.
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Affiliation(s)
- Rui Xu
- Department of Interventional Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, No. 1 Swan Lake Road, New District of Political Affairs and Culture, Hefei, 230036, Anhui, China
| | - Shiwu Yin
- Department of Interventional Radiology, The Second People's Hospital of Hefei, Hefei, 230000, Anhui, China
| | - Meng Zheng
- Department of Interventional Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, No. 1 Swan Lake Road, New District of Political Affairs and Culture, Hefei, 230036, Anhui, China
| | - Xiaohong Pei
- Department of Interventional Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, No. 1 Swan Lake Road, New District of Political Affairs and Culture, Hefei, 230036, Anhui, China
| | - Xuebing Ji
- Department of Interventional Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, No. 1 Swan Lake Road, New District of Political Affairs and Culture, Hefei, 230036, Anhui, China.
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Xiong H, Yu H, Jia G, Yu J, Su Y, Zhang J, Zhou J. circZFR regulates thyroid cancer progression by the miR-16/MAPK1 axis. ENVIRONMENTAL TOXICOLOGY 2021; 36:2236-2244. [PMID: 34323000 DOI: 10.1002/tox.23337] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 07/12/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Previous studies have identified the dysregulation of various circRNAs in many types of human cancers including thyroid cancer (TC). Circular RNA ZFR (circZFR) serves as an oncogenic circRNA in TC. However, the detailed molecular mechanism of circZFR in TC progression remains to be further explored. CircZFR and miR-16 expressions in TC cells were analyzed through qRT-PCR. Cell viability, invasion, and apoptosis were detected using CCK-8, transwell invasion assay, and flow cytometry analysis, respectively. The relationship between circZFR and miR-16 was explored using luciferase reporter assay, RNA pull-down assay, and qRT-PCR. The relationship between miR-16 and mitogen-activated protein kinase 1 (MAPK1) was explored using luciferase reporter assay and western blot analysis. Results showed that circZFR was upregulated and miR-16 was downregulated in TC cells. CircZFR knockdown inhibited the viability and invasion and induced apoptosis in TC cells. CircZFR inhibited miR-16 expression by sponging miR-16 and miR-16 repressed MAPK1 expression by targeting MAPK1. Moreover, circZFR positively regulated MAPK1 expression in TC cells by serving as a ceRNA of miR-16. Mechanistically, circZFR knockdown-induced inhibition of cell viability and invasion and promotion of apoptosis were overturned after miR-16 downregulation and promotion of MAPK1. Collectively, circZFR knockdown retarded TC progression by sponging miR-16 and modulating MAPK1 expression.
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Affiliation(s)
- Hui Xiong
- Department of Thyroid and Breast Surgery, Nanyang First People's Hospital, Nanyang, China
- Key Laboratory of Thyroid Tumor Prevention and Treatment, Nanyang First People's Hospital, Nanyang, China
| | - Huimei Yu
- Department of Endocrinology, Huaiyin Hospital, Huai'an, China
| | - Guangwei Jia
- Department of Thyroid and Breast Surgery, Nanyang First People's Hospital, Nanyang, China
| | - Jinsong Yu
- Key Laboratory of Thyroid Tumor Prevention and Treatment, Nanyang First People's Hospital, Nanyang, China
- Department of General Surgery, Nanyang First People's Hospital, Nanyang, China
| | - Yang Su
- Department of Thyroid and Breast Surgery, Nanyang First People's Hospital, Nanyang, China
| | - Jianliang Zhang
- Department of Thyroid and Breast Surgery, Nanyang First People's Hospital, Nanyang, China
| | - Jin Zhou
- Department of Ultrasound Imaging, The Affiliated Huai'an Hospital of Xuzhou Medical University, The Second People's Hospital of Huai'an, Huai'an, China
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Li G, Lan Q. Bioinformatics analysis reveals a stem cell-expressed circ-Serpine2-mediated miRNA-mRNA regulatory subnetwork in the malignant progression of glioma. J Transl Med 2021; 19:444. [PMID: 34689806 PMCID: PMC8543835 DOI: 10.1186/s12967-021-03118-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/15/2021] [Indexed: 11/10/2022] Open
Abstract
Background High-grade glioma has a poor prognosis, and GSCs can have pivotal roles in glioma pathology. This study investigated GSC exosome-containing circRNA mechanisms affecting the malignant progression of glioma. Methods In this study, we identified differentially expressed circRNAs and constructed a circRNA-miRNA-mRNA regulatory network through circRNA sequencing/bioinformatics analysis. Then, we identified circRNAs that were upregulated in GSC23 cells and employed them as downstream targets in subsequent investigations. Such investigations included downstream target knockout to assess any influence on A172 cell proliferation, invasion, migration and apoptosis. In addition, in vivo investigations using tumor-bearing animals evaluated the in vivo influences of the selected targets. Results This study identified circ-Serpine2/miR-124-3p/KIF20A as a regulatory pathway in glioma. Our in vitro analysis confirmed that circ-Serpine2 could upregulate KIF20A by sponging miR-124-3p, consequently promoting A172 cell proliferation, migration and invasion. Such a signaling channel could also inhibit glioma cell apoptosis. Additionally, our research indicated that circ-Serpine2 inhibited glioma apoptosis and promoted in vivo tumor progression. Conclusion Circ-Serpine2 exacerbated the malignant progression of glioma mediated by the miR-124-3p/KIF20A nexus, thus providing novel predictive/prognostic biomarkers and drug targets against glioma.
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Affiliation(s)
- Guowei Li
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Qing Lan
- Department of Neurosurgery, The Second Affiliated Hospital of Soochow University, Suzhou, China.
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Li H, Liu Z, Guo X, Zhang M. Circ_0128846/miR-140-3p/JAK2 Network in Osteoarthritis Development. Immunol Invest 2021; 51:1529-1547. [PMID: 34544313 DOI: 10.1080/08820139.2021.1981930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Circular RNAs (circRNAs) titrate the function of microRNAs (miRNAs), regulate transcription, and interfere with splicing. This study attempted to confirm the role of a novel circRNA circ_0128846 during osteoarthritis (OA) progression. Tissues and chondrocytes were isolated from OA patients. Overexpression and knockdown of target genes were generated using cell transfection and siRNA interference. Expression levels of genes were measured by qRT-PCR, Western blot, and immunohistochemistry, respectively. The interactions among circ_0128846, miR-140-3p, and JAK2 were verified by bioinformatics prediction, a dual-luciferase reporter assay, and RNA immunoprecipitation assay. The role of circ_0128846 in vivo was confirmed by the construction of experimental OA rats. Pathological changes were evaluated by hematoxylin and eosin and Safranin O staining. In OA patients, the level of circ_0128846 and JAK2 were up-regulated with down-regulated level of miR-140-3p. Circ_0128846 was principally located in the cytoplasm. Circ_0128846 silence enhanced cells viability, but reduced apoptosis rate and inflammatory response, which was obviously reversed by miR-140-3p knockdown. The overexpression of JAK2 reversed the effects of miR-140-3p on cell phenotypes. Circ_0128846 silence suppressed the level of MMP-13 and promoted the expression of collagen II by up-regulating miR-140-3p and down-regulating JAK2 in OA cells. Results of animal experiments demonstrated that circ_0128846 silence promoted collagen II expression and attenuated the OA progression by regulating the miR-140-3p/JAK2 axis. Circ_0128846 contributes to OA development through acting as a sponge RNA for miR-140-3p and thereby increasing JAK2 expression. Results indicated that targeting circ_0128846 may have the potential to alleviate OA progression.Abbreviations:circRNAs: Circular RNAs; miRNAs: microRNAs; OA: osteoarthritis; RIP: RNA immunoprecipitation; H&E: hematoxylin and eosin; ncRNAs: noncoding RNAs; ceRNA: competitive endogenous RNA; DMEM: Dulbecco's modified Eagle's medium; PBS: phosphate buffered saline; OE-circ_0128846: overexpression vector for circ_0128846; pcDNA3.1-JAK2: pcDNA3.1 overexpression vector for Janus kinase 2; NC: negative control; CCK-8: Cell Counting Kit-8; PI: propidium iodide; WT: Wild-type; mutants (MUT); SD rats: Sprague Dawley rats; DMM: destabilization of medial meniscus; IHC: immunohistochemistry; DAB: diaminobenzene; pre-Mrna: precursor mRNA.
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Affiliation(s)
- Hongjun Li
- Department of Rheumatology and Immunology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Zhongyu Liu
- Department of Knee Joint, Tianjin Hospital, Tianjin, China
| | - Xiaoyun Guo
- Department of Rheumatology and Immunology, The Second Hospital of Tianjin Medical University, Tianjin, China.,Department of Nephrology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Mei Zhang
- Department of Rheumatology and Immunology, Tianjin Medical University Genenral Hospital, Tianjin, China
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Gong L, Zhou X, Sun J. Circular RNAs Interaction with MiRNAs: Emerging Roles in Breast Cancer. Int J Med Sci 2021; 18:3182-3196. [PMID: 34400888 PMCID: PMC8364445 DOI: 10.7150/ijms.62219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/28/2021] [Indexed: 12/24/2022] Open
Abstract
Despite significant advances in cancer therapy strategies, breast cancer is one of the most common and lethal malignancies worldwide. Characterization of a new class of RNAs using next-generation sequencing opened new doors toward uncovering etiopathogenesis mechanisms of breast cancer as well as prognostic and diagnostic biomarkers. Circular RNAs (circRNAs) are a novel class of RNA with covalently closed and highly stable structures generated primarily from the back-splicing of precursor mRNAs. Although circRNAs exert their function through various mechanisms, acting as a sponge for miRNAs is their primary mechanism of function. Furthermore, growing evidence has shown that aberrant expression of circRNAs is involved in the various hallmarks of cancers. This paper reviews the biogenesis, characteristics, and mechanism of functions of circRNAs and their deregulation in various cancers. Finally, we focused on the circRNAs roles as a sponge for miRNAs in the development, metastasis, angiogenesis, drug resistance, apoptosis, and immune responses of breast cancer.
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Affiliation(s)
- Liu Gong
- Department of Medical Oncology, Hangzhou Xiasha Hospital, Hangzhou, Zhejiang Province, China
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Chen L, Sun Z, Xu H, Xie Q, Qi M, Tian X, Wang T. Emerging roles of circular RNAs in thyroid cancer. Exp Cell Res 2021; 404:112626. [PMID: 34023393 DOI: 10.1016/j.yexcr.2021.112626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 11/30/2022]
Abstract
As the most common endocrine-related malignant tumor, the prevalence of thyroid cancer (TC) has soared strikingly over the past thirty years then verged to stabilization or even descension temporally. Distributed in a cell-specific manner, circular RNAs (circRNAs) is a novel class of non-coding RNAs characterized by its covalently closed loop without 5'-terminal cap and 3'-terminal poly A tail, which guarantee its distinctive evolutionary conservation and exonucleases resistance. Emerging evidence indicates that circRNA participates in the pathogenesis and carcinogenesis of several cancers including thyroid cancer. In this review, we concentrated on the connection between circRNAs and thyroid cancer so as to obtain a more profound understanding. We aim to discuss this relationship between TC and circRNAs by summarizing the effect of various circRNAs on tumor biological behaviors and clinical application, and systematically outlook the conceivable application of circRNAs in TC diagnosis and therapy.
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Affiliation(s)
- Lin Chen
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
| | - Zhigang Sun
- Department of Colorectal Surgery and State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - Hao Xu
- Department of Thyroid and Breast Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China.
| | - Qiuping Xie
- Department of Thyroid Surgery, The Second Affiliated Hospital of Zhejiang University College of Medicine, Hangzhou, Zhejiang, 310009, China.
| | - Ming Qi
- Department of Thyroid and Breast Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China.
| | - Xingsong Tian
- Department of Thyroid and Breast Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China.
| | - Tiantian Wang
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Department of Thyroid and Breast Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China; Department of Thyroid Surgery, The Second Affiliated Hospital of Zhejiang University College of Medicine, Hangzhou, Zhejiang, 310009, China.
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Li X, Jiang W, Zhong Y, Wu L, Sun G, Wang H, Tao J, Li Z. Advances of circular RNAs in thyroid cancer: An overview. Biomed Pharmacother 2021; 140:111706. [PMID: 34004512 DOI: 10.1016/j.biopha.2021.111706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 05/03/2021] [Accepted: 05/05/2021] [Indexed: 12/19/2022] Open
Abstract
Circular RNA (circRNA) is a general term for a type of single-stranded RNAs, they are primarily generated via exon back-splice process in precursor mRNAs (pre-mRNAs). circRNAs refer to an emerging type of endogeneity-correlated closed molecules of RNA in a covalent manner. They mainly function as microRNA sponges, protein brackets, and regulatory element in transcription and splicing process. Recently, it has also starting been noticed that they serve as extraordinary models involved in polypeptides producing process. Although circRNAs have been extensively studied, their function in thyroid carcinoma is still lacking. Thus, we present the latest advances in circRNA research and summarize their fundamental rules of regulating process as well as the mechanism. More importantly, We mainly review the role and mechanism of circRNA in thyroid cancer, which provides an emerging perspective and theoretically supports the treatment of thyroid cancer.
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Affiliation(s)
- Xiao Li
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wei Jiang
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yi Zhong
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Liangliang Wu
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Guoqiang Sun
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hanjin Wang
- Department of General Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Jing Tao
- Department of General Surgery, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Zhouxiao Li
- Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Division of Hand, Plastic and Aesthetic Surgery, University Hospital, LMU Munich, Pettenkoferstraße 8a, 80336, Munich, Germany.
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Circ_0137287 suppresses cell tumroigenesis and aerobic glycolysis in papillary thyroid carcinoma through miR-183-5p/PPP2R2A axis. Cytotechnology 2021; 73:497-511. [PMID: 34149180 DOI: 10.1007/s10616-021-00473-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 04/30/2021] [Indexed: 10/21/2022] Open
Abstract
Circ_0137287 was found to be decreased in papillary thyroid cancer (PTC) tissues and related to aggressive clinicopathologic characteristics. However, the role and mechanism of circ_0137287 in PTC remain vague. Circ_0137287 expression was decreased in PTC and its low expression predicted poor survival. The ROC analysis suggested circ_0137287 might be a marker for PTC diagnosis. Circ_0137287 overexpression in PTC cells impaired cell proliferation, migration, invasion, and aerobic glycolysis, but induced apoptosis in vitro and in vivo. Circ_0137287 specifically bound to miR-183-5p, and miR-183-5p reversed the inhibitory effects of circ_0137287 on PTC tumor growth, motility and aerobic glycolysis. MiR-183-5p directly targeted PPP2R2A, and promoted PTC progression through regulating PPP2R2A. Mechanistically, circ_0137287 could indirectly modulate PPP2R2A expression through targeting miR-183-5p. Circ_0137287 suppressed PTC tumorigenesis and aerobic glycolysis through up-regulating PPP2R2A via miR-183-5p absorption, indicating a promising prognostic, diagnostic and therapeutic target.
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Warburg effect-promoted exosomal circ_0072083 releasing up-regulates NANGO expression through multiple pathways and enhances temozolomide resistance in glioma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:164. [PMID: 33975615 PMCID: PMC8111743 DOI: 10.1186/s13046-021-01942-6] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 04/11/2021] [Indexed: 12/20/2022]
Abstract
Background Temozolomide (TMZ) resistance limits its application in glioma. Exosome can carry circular RNAs (circRNAs) to regulate drug resistance via sponging microRNAs (miRNAs). miRNAs can control mRNA expression by regulate the interaction with 3’UTR and methylation. Nanog homeobox (NANOG) is an important biomarker for TMZ resistance. Hitherto, it is unknown about the role of exosomal hsa_circ_0072083 (circ_0072083) in TMZ resistance in glioma, and whether it is associated with NANOG via regulating miRNA sponge and methylation. Methods TMZ-resistant (n = 36) and sensitive (n = 33) patients were recruited. The sensitive cells and constructed resistant cells were cultured and exposed to TMZ. circ_0072083, miR-1252-5p, AlkB homolog H5 (ALKBH5) and NANOG levels were examined via quantitative reverse transcription polymerase chain reaction and western blot. The half maximal inhibitory concentration (IC50) of TMZ, cell proliferation, apoptosis, migration and invasion were analyzed via Cell Counting Kit-8, colony formation, flow cytometry, wound healing and transwell assays. The in vivo function was assessed using xenograft model. The N6-methyladenosine (m6A) level was analyzed via methylated RNA immunoprecipitation (MeRIP). Target relationship was investigated via dual-luciferase reporter assay and RNA immunoprecipitation. Warburg effect was investigated via lactate production, glucose uptake and key enzymes expression. Exosome was isolated and confirmed via transmission electron microscopy and specific protein expression. Results circ_0072083 expression was increased in TMZ-resistant glioma tissues and cells. circ_0072083 knockdown restrained the resistance of resistant cells via decreasing IC50 of TMZ, proliferation, migration, invasion and xenograft tumor growth and increasing apoptosis. circ_0072083 silence reduced NANOG expression via blocking ALKBH5-mediated demethylation. circ_0072083 could regulate NANOG and ALKBH5 via targeting miR-1252-5p to control TMZ resistance. Warburg effect promoted the release of exosomal circ_0072083 in resistant cells. Exosomal circ_0072083 from resistant cells increased the resistance of sensitive cells to TMZ in vitro and xenograft model. Exosomal circ_0072083 level was enhanced in resistant patients, and it had a diagnostic value and indicated a lower overall survival in glioma. Conclusion Exosomal circ_0072083 promoted TMZ resistance via increasing NANOG via regulating miR-1252-5p-mediated degradation and demethylation in glioma. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01942-6.
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Xia F, Zhang Z, Li X. Emerging Roles of Circular RNAs in Thyroid Cancer. Front Cell Dev Biol 2021; 9:636838. [PMID: 33981702 PMCID: PMC8107370 DOI: 10.3389/fcell.2021.636838] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/02/2021] [Indexed: 12/26/2022] Open
Abstract
Thyroid cancer (TC) has the highest incidence among endocrine malignancies. Thus, it is essential to achieve a deep understanding of various mechanisms of development and progression of TC. circRNAs are recognized by multiple studies as being dysregulated in TC. Accumulating evidences have revealed that circRNAs serve as regulatory molecules involved in various biological processes in TC, including cell proliferation, apoptosis, invasion/migration, metabolism, and chemoresistance. Furthermore, circRNA can also serve as an effective tool in TC researches of diagnosis, prognosis, and treatments. Thus, this review is to outline the characteristics of circRNAs, generalize their categories and functions, and highlight the expression of circRNAs in TC. Meanwhile, we are expecting to achieve a comprehensive understanding of new therapies based on circRNAs in treating or preventing TC.
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Affiliation(s)
- Fada Xia
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Zeyu Zhang
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Xinying Li
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
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Zhang Y, Jia DD, Zhang YF, Cheng MD, Zhu WX, Li PF, Zhang YF. The emerging function and clinical significance of circRNAs in Thyroid Cancer and Autoimmune Thyroid Diseases. Int J Biol Sci 2021; 17:1731-1741. [PMID: 33994857 PMCID: PMC8120456 DOI: 10.7150/ijbs.55381] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 04/07/2021] [Indexed: 12/21/2022] Open
Abstract
Thyroid cancer (TC) is one of the most common malignant tumors, with high morbidity and mortality rates worldwide. The incidence of TC, especially that of papillary thyroid carcinoma (PTC); has increased rapidly in recent decades. Autoimmune thyroid disease (AITD) is closely related to TC and has an estimated prevalence of 5%. Thus, it is becoming increasingly important to identify potential diagnostic biomarkers and therapeutic targets for TC and AITD. Circular RNAs (circRNAs) are a class of non-coding RNAs with covalently bonded circular structures that lack 5'-3' polarity and polyadenylated tails. Several circRNAs play crucial roles in the development of various diseases, including TC and AITD, and could be important new biomarkers and/or targets for the diagnosis and therapy of such disorders. Although there are four subtypes of TC, research on circRNA has largely focused on its connection to PTC. Therefore, this review mainly summarizes the relationships between circRNAs and PTC and AITD, including the molecular mechanisms underlying these relationships. In particular, the functions of “miRNA sponges” and their interactions with proteins and RNA are discussed. The possible targeting of circRNAs for the prevention, diagnosis, and treatment of TC and AITD is also described. CircRNAs could be potential biomarkers of TC and AITD, although validation will be required before they can be implemented in clinical practice.
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Affiliation(s)
- Yu Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Deng Zhou Road 38, Qingdao 266021, China
| | - Dong-Dong Jia
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Deng Zhou Road 38, Qingdao 266021, China
| | - Yi-Fei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Deng Zhou Road 38, Qingdao 266021, China
| | - Meng-Die Cheng
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China. Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Wen-Xiu Zhu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China. Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Pei-Feng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Deng Zhou Road 38, Qingdao 266021, China
| | - Yin-Feng Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Deng Zhou Road 38, Qingdao 266021, China
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Luo L, Miao P, Ming Y, Tao J, Shen H. Circ-ZFR Promotes Progression of Bladder Cancer by Upregulating WNT5A Via Sponging miR-545 and miR-1270. Front Oncol 2021; 10:596623. [PMID: 33928018 PMCID: PMC8076638 DOI: 10.3389/fonc.2020.596623] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/16/2020] [Indexed: 12/20/2022] Open
Abstract
Background Bladder cancer is one of the most common cancers all over the world. CircZFR is a circular RNA and has been implicated in tumor generation and invasion. However, the exact role of circZFR in the development of bladder cancer (BCa) remains unknown. This study aimed to investigate the function of circZFR in BCa, and further to probe into the association between circ-ZFR, miR-545/miR-1270 and WNT5A. Methods The expression of circZFR in BCa was quantified by qRT-PCR and was positively correlated with the prognosis of BCa patients. Next, the stable knockdown of circZFR BCa cell lines was established and the resulting capacities of proliferation, migration and invasion were measured. The association of circZFR with miR-1270/miR-545 was predicted by circinteractome prediction, and was confirmed by luciferase assay as well as RNA pull down assay. Furthermore, miRNA inhibitors, WNT5A overexpression and Pearson correlation analysis were used to examine the relationship between circZFR, miR-1270/miR-545 and WNT5A. Results The expression of CircZFR was up-regulated both in BCa tissues and in BCa cell lines, and was positively correlated with patient survival rates. Blocking of circZFR's expression by RNA inhibitors suppressed the proliferation, migration and invasion of BCa cells both in vitro and in vivo. On the other hand, overexpression of target miRNA supported that circZFR directly interact with miR-545 and miR-1270. Moreover, we demonstrated that circZFR promotes the progression of BCa by upregulating WNT5A's expression via sponging miR-545 and miR-1270. Conclusions CircZFR promotes the proliferation, migration and invasion of BCa cells by upregulating WNT5A signaling pathway via sponging miR-545 and miR-1270. These results provide new insights into the molecular mechanism of circZFR in BCa progression, and more important, a novel target for BCa clinical treatment.
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Affiliation(s)
- Liping Luo
- Department of Nephrology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Pingping Miao
- Department of Nephrology, The Traditional Chinese Medicine Hospital of Luzhou City, Luzhou, China
| | - Yao Ming
- Department of Nephrology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Jie Tao
- Department of Nephrology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Hongchun Shen
- Department of Nephrology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China.,College of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, China
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Lyu N, Zeng Y, Kong Y, Chen Q, Deng H, Ou S, Bai Y, Tang H, Wang X, Zhao M. Ferroptosis is involved in the progression of hepatocellular carcinoma through the circ0097009/miR-1261/SLC7A11 axis. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:675. [PMID: 33987373 PMCID: PMC8106082 DOI: 10.21037/atm-21-997] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background Circular RNAs (circRNAs) are a class of non-coding RNAs that have been demonstrated to play important roles in tumorigenesis. However, how circRNAs regulate the progression of hepatocellular cancer (HCC) remains unclear. Methods In the present study, circRNA microarray analyses were performed with HCC tissues to identify circRNAs that are differentially expressed. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis was conducted on HCC cell lines and tissues, and circ0097009 was found to be significantly upregulated. The functions of circ0097009 in HCC were investigated by a series of experiments, including cell proliferation, invasion, and mouse xenograft assays. Additionally, luciferase assays and RNA immunoprecipitation (RIP) assays were used to explore the interactions of circ0097009, microRNA-1261 (miR-1261), and solute carrier family 7 member 11 (SLC7A11) in HCC. Results Microarray analysis and qRT-PCR verified that circRNA, circ0097009, was significantly upregulated in HCC tissues and cell lines. Knockdown of circ0097009 inhibited the proliferation and invasion of HCC cells. Luciferase reporter assays showed that circ0097009 and SLC7A11 directly bound to miR-1261. Subsequent experiments showed that circ0097009 and SLC7A11 reciprocally regulated their expression via miR-1261 sponging by circ0097009. Conclusions Circ0097009 acts as a competing endogenous RNA to regulate the expression of SLC7A11, a key regulator of cancer cell ferroptosis, by sponging miR-1261 in HCC. Circ0097009 may be used as a diagnostic biomarker for HCC and as a potential target for HCC therapy.
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Affiliation(s)
- Ning Lyu
- Department of Minimally Invasive Interventional Radiology, Liver Cancer Study and Service Group, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
| | - Yan Zeng
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
| | - Yanan Kong
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
| | - Qifeng Chen
- Department of Minimally Invasive Interventional Radiology, Liver Cancer Study and Service Group, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
| | - Haijing Deng
- Department of Minimally Invasive Interventional Radiology, Liver Cancer Study and Service Group, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
| | - Shunling Ou
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
| | - Yanfang Bai
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
| | - Hailin Tang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
| | - Xiaolan Wang
- Reproductive Center of Medicine, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Ming Zhao
- Department of Minimally Invasive Interventional Radiology, Liver Cancer Study and Service Group, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangzhou, China
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Ren H, Song Z, Chao C, Mao W. circCCDC66 promotes thyroid cancer cell proliferation, migratory and invasive abilities and glycolysis through the miR-211-5p/PDK4 axis. Oncol Lett 2021; 21:416. [PMID: 33841577 PMCID: PMC8020395 DOI: 10.3892/ol.2021.12677] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 01/20/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer metastasis is the main cause of death in cancer patients, including patients with thyroid cancer (TC). TC is the most common malignant endocrine tumour. In the recent years, increasing evidence has demonstrated that circular RNAs (circRNAs) serve a significant role in the development of many types of human cancer. However, the function and underlying mechanism of circCCDC66 in TC remain unclear. The present study aimed to explore the role of circCCDC66 in TC. To do so, reverse transcription quantitative PCR was used to detect the expression level of circCCDC66. Cell viability, migratory and invasive abilities, and glucose consumption were evaluated by cell counting kit 8, Transwell and glucose consumption assays, respectively. The association between circCCDC66 or pyruvate dehydrogenase kinase 4 (PDK4) and miR-211-5p was verified by dual-luciferase reporter assay. The results demonstrated that circCCDC66 expression was significantly increased in TC tissues and cell lines. Furthermore, silencing circCCDC66 inhibited TC cell proliferation, migratory and invasive abilities and glycolysis in vitro. Further validation demonstrated that circCCDC66 directly interacted with the microRNA (miR) miR-211-5p. Subsequently, the activity of circCCDC66 was attenuated by miR-211-5p. In addition, the results demonstrated that circCCDC66 may promote papillary thyroid cancer progression by sponging miR-211-5p and increasing expression of PDK4. In conclusion, the present study demonstrated that circCCDC66 could promote TC cell proliferation, migratory and invasive abilities and invasion and glycolysis through the miR-211-5p/PDK4 axis. These findings suggested that targeting circCCDC66 may be considered as a promising therapeutic strategy for TC.
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Affiliation(s)
- Hong Ren
- Department of General Surgery, Qingdao Municipal Hospital, Qingdao University School of Medicine, Shandong, Qingdao 266000, P.R. China
| | - Zhendi Song
- Department of General Surgery, Qingdao Municipal Hospital, Qingdao University School of Medicine, Shandong, Qingdao 266000, P.R. China
| | - Chen Chao
- Department of General Surgery, Jintan Hospital, Jiangsu University School of Medicine, Changzhou, Jiangsu 213200, P.R. China
| | - Weizheng Mao
- Department of General Surgery, Qingdao Municipal Hospital, Qingdao University School of Medicine, Shandong, Qingdao 266000, P.R. China
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Luo Q, Guo F, Fu Q, Sui G. hsa_circ_0001018 promotes papillary thyroid cancer by facilitating cell survival, invasion, G 1/S cell cycle progression, and repressing cell apoptosis via crosstalk with miR-338-3p and SOX4. MOLECULAR THERAPY-NUCLEIC ACIDS 2021; 24:591-609. [PMID: 33898108 PMCID: PMC8054110 DOI: 10.1016/j.omtn.2021.02.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 02/19/2021] [Indexed: 11/26/2022]
Abstract
We identified a novel interactome, circ_0001018/miR-338-3p/SOX4, in papillary thyroid cancer (PTC), and we intended to confirm the regulatory relationship between the three and to study the effects of the three in PTC. The bioinformatics method was used to screen out the circular RNA and mRNA of interest. A cellular fractionation assay and fluorescence in situ hybridization (FISH) assay were conducted to prove that circ_0001018 and CCT4 (the host gene of circ_0001018) mRNA primarily localized in the cytoplasm of PTC cell lines. By qRT-PCR analysis, the expression of circ_0001018 and SOX4 mRNA was found upregulated while the expression of miR-338-3p was found downregulated in PTC tissues and cells. circ_0001018 silence significantly inhibited the tumor growth in xenografted nude mice. A series of cytological experiments such as a Cell Counting Kit-8 (CCK-8) assay, a 5-ethynyl-2′-deoxyuridine (EdU) assay, cell cycle profiling, wound healing, a transwell assay, and cell apoptosis were conducted and showed that circ_0001018 and SOX4 promoted cell proliferation, migration, and invasion, inhibited cell apoptosis, and reduced the cell cycle arrest at the G1 phase in PTC cells. Compared with circ_0001018 and SOX4, miR-338-3p held the opposite function. The regulatory relationship between circ_0001018 and miR-338-3p, and between miR-338-3p and SOX4 mRNA, was validated using a luciferase reporter gene assay and/or RNA immunoprecipitation (RIP assay). Our findings showed that circ_0001018 acted as the tumor promoter via sponging miR-338-3p to elevate SOX4 expression level in PTC. Importantly, this novel circ_0001018/miR-338-3p/SOX4 axis has the potential to be considered as a therapy target for PTC.
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Affiliation(s)
- Qiang Luo
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun 130033, Jilin, China
| | - Feng Guo
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun 130033, Jilin, China
| | - Qingfeng Fu
- Jilin Provincial Key Laboratory of Surgical Translational Medicine, Division of Thyroid Surgery, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun 130033, Jilin, China
| | - Guoqing Sui
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, No. 126 Xiantai Street, Changchun 130033, Jilin, China
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Ma W, Zhao P, Zang L, Zhang K, Liao H, Hu Z. CircTP53 promotes the proliferation of thyroid cancer via targeting miR-1233-3p/MDM2 axis. J Endocrinol Invest 2021; 44:353-362. [PMID: 32500444 DOI: 10.1007/s40618-020-01317-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/28/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Follicular cells give rise to thyroid cancer. Worldwide thyroid cancer incidence continues to rise in recent decades but the mortality rate remains at a stable level. The discovery of novel molecular mechanisms in the pathogenesis of thyroid cancer will promote new diagnostic or therapeutic strategies. Circular RNA (circRNA) is a type of noncoding RNA which is characterized by the covalently closed loop and non-protein coding capacity. The abnormal expression of circRNAs is an important part during the pathogenesis and development of thyroid cancer. CircTP53 is a novel circRNA, and we aimed to investigate its function in the pathogenesis of thyroid cancer and to further demonstrate the underlying molecular mechanism. METHODS The levels of circTP53, miR-1233-3p, and other relative mRNA were analyzed by qRT-PCR. Protein levels were shown by Western blot. RNA-pulldown assay and luciferase assay were employed to examine the interaction between circTP53 and miR-1233-3p. Cell proliferation was analyzed by the MTT assay. RESULTS CircTP53 was a circRNA highly expressed in thyroid cancer tissues. CircTP53 promoted cell proliferation and cell viability of TPC-1 cells. Knockdown of circTP53 inhibited the expression of Mouse double minute 2 (MDM2) and increased the protein level of p53. CircTP53 acted as a target of miR-1233-3p to increase MDM2 expression. p53 expression in thyroid cancer tissue exhibited a negative correlation with circTP53 expression. CONCLUSION In thyroid cancer, overexpressed circTP53 decreased the protein level of p53 via targeting miR-1233-3p/MDM2 axis and promoted cancer cell proliferation.
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Affiliation(s)
- W Ma
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - P Zhao
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - L Zang
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - K Zhang
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - H Liao
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China
| | - Z Hu
- The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang, 050000, Hebei, China.
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Ashrafizadeh M, Zarrabi A, Hushmandi K, Hashemi F, Moghadam ER, Owrang M, Hashemi F, Makvandi P, Goharrizi MASB, Najafi M, Khan H. Lung cancer cells and their sensitivity/resistance to cisplatin chemotherapy: Role of microRNAs and upstream mediators. Cell Signal 2021; 78:109871. [PMID: 33279671 DOI: 10.1016/j.cellsig.2020.109871] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/24/2020] [Accepted: 12/01/2020] [Indexed: 02/07/2023]
Abstract
Cisplatin (CP) is a well-known chemotherapeutic agent with excellent clinical effects. The anti-tumor activity of CP has been demonstrated in different cancers such as breast, cervical, reproductive, lung, brain, and prostate cancers. However, resistance of cancer cells to CP chemotherapy has led to its failure in eradication of cancer cells, and subsequent death of patients with cancer. Fortunately, much effort has been put to identify molecular pathways and mechanisms involved in CP resistance/sensitivity. It seems that microRNAs (miRs) are promising candidates in mediating CP resistance/sensitivity, since they participate in different biological aspects of cells such as proliferation, migration, angiogenesis, and differentiation. In this review, we focus on miRs and their regulation in CP chemotherapy of lung cancer, as the most malignant tumor worldwide. Oncogenic miRs trigger CP resistance in lung cancer cells via targeting various pathways such as Wnt/β-catenin, Rab6, CASP2, PTEN, and Apaf-1. In contrast, onco-suppressor miRs inhibit oncogene pathways such as STAT3 to suppress CP resistance. These topics are discussed to determine the role of miRs in CP resistance/sensitivity. We also describe the upstream modulators of miRs such as lncRNAs, circRNAs, NF-κB, SOX2 and TRIM65 and their association with CP resistance/sensitivity in lung cancer cells. Finally, the effect of anti-tumor plant-derived natural compounds on miR expression during CP sensitivity of lung cancer cells is discussed.
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Affiliation(s)
- Milad Ashrafizadeh
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla 34956, Istanbul, Turkey; Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla 34956, Istanbul, Turkey
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla 34956, Istanbul, Turkey
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology & Zoonoses, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Farid Hashemi
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Ebrahim Rahmani Moghadam
- Department of Anatomical Sciences, School of Medicine, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Marzieh Owrang
- Department of Anatomical Sciences, School of Medicine, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fardin Hashemi
- Student Research Committee, Department of Physiotherapy, Faculty of Rehabilitation, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Pooyan Makvandi
- Istituto Italiano di Tecnologia, Centre for Micro-BioRobotics, viale Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
| | | | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran; Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, 23200, Pakistan.
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Li Y, Qin J, He Z, Cui G, Zhang K, Wu B. Knockdown of circPUM1 impedes cell growth, metastasis and glycolysis of papillary thyroid cancer via enhancing MAPK1 expression by serving as the sponge of miR-21-5p. Genes Genomics 2021; 43:141-150. [PMID: 33481227 DOI: 10.1007/s13258-020-01023-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/05/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Circular RNAs (circRNAs) are a crucial class of regulatory RNAs in cancer procession, including papillary thyroid cancer (PTC). Circ-Pumilio 1 (circPUM1) is a novel circRNA with the oncogenic function in ovarian cancer and lung cancer. However, the role of circPUM1 in PTC is undiscovered. OBJECTIVE This study was performed to investigate the biological function and molecular mechanism of circPUM1 in PTC. METHODS CircPUM1 and microRNA-21-5p (miR-21-5p) levels were analyzed via quantitative real-time polymerase chain reaction (qRT-PCR). Cellular viability and metastasis were measured using Cell Counting Kit 8 (CCK-8) and transwell migration/invasion assay. Glycolysis was evaluated by glucose uptake and lactate production. Associated proteins were examined applying with western blot. Dual-luciferase reporter assay and RNA pull-down assay were used to analyze the interaction between circPUM1 or mitogen-activated protein kinase 1 (MAPK1) and miR-21-5p. Moreover, the role of circPUM1 in vivo was explored by xenograft tumor experiment. RESULTS Significantly, circPUM1 was upregulated in PTC tissue samples and cells. Cell growth, metastasis and glycolytic process of PTC cells were all inhibited after downregulation of circPUM1. Besides, circPUM1 could sponge miR-21-5p and MAPK1 was a target gene of miR-21-5p. Furthermore, we found that the anti-cancer effect of circPUM1 knockdown on PTC was partly ascribed to MAPK1 downregulation by upregulating miR-21-5p. Silencing circPUM1 also impeded tumorigenesis of PTC in vivo via miR-21-5p/MAPK1 axis. CONCLUSION These findings suggested that circPUM1 knockdown inhibited MAPK1 expression by targeting miR-21-5p, consequently leading to the repressive effect on PTC progression. CircPUM1 might be a promising target to improve the diagnosis and treatment of PTC.
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Affiliation(s)
- Yanqi Li
- Department of General Surgery, Heping Hospital Affiliated to Changzhi Medical College, No. 110, Yan'an South Road, Changzhi, 046000, Shanxi Province, China
| | - Jun Qin
- Department of General Surgery, Heping Hospital Affiliated to Changzhi Medical College, No. 110, Yan'an South Road, Changzhi, 046000, Shanxi Province, China
| | - Zhaocai He
- Department of General Surgery, Heping Hospital Affiliated to Changzhi Medical College, No. 110, Yan'an South Road, Changzhi, 046000, Shanxi Province, China
| | - Guang Cui
- Department of General Surgery, Heping Hospital Affiliated to Changzhi Medical College, No. 110, Yan'an South Road, Changzhi, 046000, Shanxi Province, China
| | - Kun Zhang
- Department of General Surgery, Heping Hospital Affiliated to Changzhi Medical College, No. 110, Yan'an South Road, Changzhi, 046000, Shanxi Province, China
| | - Buqiang Wu
- Department of General Surgery, Heping Hospital Affiliated to Changzhi Medical College, No. 110, Yan'an South Road, Changzhi, 046000, Shanxi Province, China.
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Gong J, Kong X, Qi J, Lu J, Yuan S, Wu M. CircRNA_104565 Promoted Cell Proliferation in Papillary Thyroid Carcinoma by Sponging miR-134. Int J Gen Med 2021; 14:179-185. [PMID: 33500653 PMCID: PMC7822225 DOI: 10.2147/ijgm.s288360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/11/2020] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Thyroid cancer is one of the most common cancers with rising incidence worldwide, and papillary thyroid carcinoma (PTC) accounts for 80-85% of thyroid malignancy. Although it has been reported that many genes relate to the carcinogenesis of PTC, the molecular mechanisms remain mostly unclear. METHODS QRT-PCR assay was performed to detect circRNA_104565, miR-134 and ELF2 expression. CCK8 assay was exercised to examine cell proliferation. Western blot was used to detect ELF2 expression. RESULTS We found that circRNA_104565 was highly expressed in PTC tissue and cell and promoted cell proliferation in vitro and in vivo. In addition, circRNA_104565 promoted cell proliferation in PTC by regulating the miR-134/ELF2 axis. CONCLUSION Hence, revealing the function of circRNA_104565 in PTC is important for understanding the molecular mechanism of carcinogenesis and providing new biomarkers or therapeutic targets for PTC.
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Affiliation(s)
- Jianming Gong
- Department of Surgery, Tinglin Hospital of Jinshan District, Shanghai201505, People’s Republic of China
| | - Xiangdong Kong
- Department of Surgery, Tinglin Hospital of Jinshan District, Shanghai201505, People’s Republic of China
| | - Jinhui Qi
- Department of Surgery, Tinglin Hospital of Jinshan District, Shanghai201505, People’s Republic of China
| | - Jiangkun Lu
- Department of Surgery, Tinglin Hospital of Jinshan District, Shanghai201505, People’s Republic of China
| | - Shaofeng Yuan
- Department of Surgery, Tinglin Hospital of Jinshan District, Shanghai201505, People’s Republic of China
| | - Ming Wu
- Department of Surgery, Tinglin Hospital of Jinshan District, Shanghai201505, People’s Republic of China
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Lou W, Ding B, Wang J, Xu Y. The Involvement of the hsa_circ_0088494-miR-876-3p-CTNNB1/CCND1 Axis in Carcinogenesis and Progression of Papillary Thyroid Carcinoma. Front Cell Dev Biol 2020; 8:605940. [PMID: 33363164 PMCID: PMC7755655 DOI: 10.3389/fcell.2020.605940] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 11/11/2020] [Indexed: 12/16/2022] Open
Abstract
Recently, growing studies have demonstrated that circular RNAs (circRNAs) function as critical players in multiple human tumors, including papillary thyroid carcinoma (PTC). However, the expression and underlying potential mechanism of circRNAs in PTC are still not fully elucidated. In this study, 14 candidate differentially expressed circRNAs (DECs) between normal thyroid tissues and benign thyroid tissues or PTC were first screened using the GSE93522 dataset by the GEO2R online tool. Then, the structural loop graphs of these 14 circRNAs were obtained through the CSCD database. After performing miRNA co-prediction by combination of CSCD and CRI databases, a potential circRNA-miRNA sub-network, consisting of 9 circRNAs and 21 miRNAs, was successfully constructed. Subsequently, the expression and prognostic values of these miRNAs were further determined by starBase, and two miRNAs, namely, miR-605-5p and miR-876-3p, were identified as key miRNAs in PTC. Then, their downstream target genes were predicted by the miRNet database. CTNNB1 and CCND1 were found to be two most potential targets of miR-876-3p by combination of multiple in silico analyses, including protein–protein interaction (PPI), hub gene screening, correlation analysis, and expression analysis. Conclusively, we established a key hsa_circ_0088494-miR-876-3p-CTNNB1/CCND1 axis linked to carcinogenesis and progression of PTC, which may provide promising therapeutic targets in treating PTC in the future.
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Affiliation(s)
- Weiyang Lou
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Bisha Ding
- Key Laboratory of Combined Multi-Organ Transplantation, Division of Hepatobiliary and Pancreatic Surgery, Program of Innovative Cancer Therapeutics, Department of Surgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Ministry of Public Health, Hangzhou, China.,Key Laboratory of Organ Transplantation, Zhejiang University, Hangzhou, China
| | - Jiannan Wang
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yongfang Xu
- Department of Respiratory Medicine, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Shu T, Yang L, Sun L, Lu J, Zhan X. CircHIPK3 Promotes Thyroid Cancer Tumorigenesis and Invasion through the Mirna-338-3p/RAB23 Axis. Med Princ Pract 2020:000512548. [PMID: 33105143 DOI: 10.1159/000512548] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 10/24/2020] [Indexed: 11/19/2022] Open
Abstract
Objective:Thyroid cancer is a common type of endocrine malignancy, and its incidence has been steadily increasing in many regions of the world. Numerous studies have found that the circRNAs in various cancer types are aberrantly expressed, which could be potential biological diagnostic markers and therapeutic targets. The purpose of this study was to investigate the role of circHIPK3 in the development and progression of thyroid cancer and its mechanism. Subject and Methods:qRT-PCR was used to detect the relative expression levels of circHIPK3 in thyroid cancer cell lines (K1, CAL-62, TPC1), human thyroid normal cells (Nthy-ori 3-1), 10 pairs of thyroid cancer tissues and corresponding adjacent normal tissues. CCK-8 and Transwell assays were used to detect the proliferation and metastasis ability of cells. The targeted relationships between circHIPK3-miR-338-3p and miR-338-3p-RAB23 were predicted by bioinformatics analysis and verified by dual-luciferase reporter assays. Results and Conclusion: The downregulation of circHIPK3 significantly reduced the migration, invasion and proliferation of thyroid carcinoma. Then, we demonstrated that circHIPK3 up-regulated the expression of its target gene RAB23 by sponging miR-338-3p to promote the tumorigenesis and invasiveness of thyroid cancer. This study is the first to find that circHIPK3 plays the role of oncogenetic circRNA in thyroid cancer, which may provide new insights into how circRNA affects the progression of thyroid cancer. Our study also showed that circHIPK3 could be a novel biomarker for thyroid cancer.
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MicroRNA in Papillary Thyroid Carcinoma: A Systematic Review from 2018 to June 2020. Cancers (Basel) 2020; 12:cancers12113118. [PMID: 33113852 PMCID: PMC7694051 DOI: 10.3390/cancers12113118] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 02/06/2023] Open
Abstract
Simple Summary The most common form of endocrine cancer - papillary thyroid carcinoma, has an increasing incidence. Although this disease usually has an indolent behavior, there are cases when it can evolve more aggressively. It has been known for some time that it is possible to use microRNAs for the diagnosis, prognosis and even treatment monitoring of papillary thyroid cancer. The purpose of this study is to summarize the latest information provided by publications regarding the involvement of microRNAs in papillary thyroid cancer, underling the new clinical perspectives offered by these publications. Abstract The involvement of micro-ribonucleic acid (microRNAs) in metabolic pathways such as regulation, signal transduction, cell maintenance, and differentiation make them possible biomarkers and therapeutic targets. The purpose of this review is to summarize the information published in the last two and a half years about the involvement of microRNAs in papillary thyroid carcinoma (PTC). Another goal is to understand the perspective offered by the new findings. Main microRNA features such as origin, regulation, targeted genes, and metabolic pathways will be presented in this paper. We interrogated the PubMed database using several keywords: “microRNA” + “thyroid” + “papillary” + “carcinoma”. After applying search filters and inclusion criteria, a selection of 137 articles published between January 2018–June 2020 was made. Data regarding microRNA, metabolic pathways, gene/protein, and study utility were selected and included in the table and later discussed regarding the matter at hand. We found that most microRNAs regularly expressed in the normal thyroid gland are downregulated in PTC, indicating an important tumor-suppressor action by those microRNAs. Moreover, we showed that one gene can be targeted by several microRNAs and have nominally described these interactions. We have revealed which microRNAs can target several genes at once.
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Zhang S, Wang Q, Li D, Huang B, Hou X, Wang D, Xiao Z, Meng H, Zhang Y, Dong L. Oncolytic Vaccinia Virus-Mediated Antitumor Effect and Cell Proliferation Were Promoted in PTC by Regulating circRNA_103598/miR-23a-3p/IL-6 Axis. Cancer Manag Res 2020; 12:10389-10396. [PMID: 33116893 PMCID: PMC7585822 DOI: 10.2147/cmar.s273072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 09/28/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Papillary thyroid carcinoma (PTC) is the most common type of thyroid malignancy, and cases have been rising steadily worldwide in the past few decades. Despite great progress having been made in surgery and chemotherapy for PTC, the survival rate of PTC patients has not increased significantly. Therefore, there is an urgent need to explore novel treatment strategies. MATERIALS AND METHODS The levels of circRNA_103598, miR-23a-3p and IL-6 mRNA in PTC tissues and cells were examined by qRT-PCR assay. Cell proliferation and IC50 values of oncolytic vaccinia virus (OVV) were detected by CCK-8 assay. A dual-luciferase reporter assay was performed to detect the relationships among circRNA_103598, miR-23a-3p and IL-6. ELISA was carried out to detect the expression of IL-6. RESULTS We found that circRNA_103598 was increased in PTC tissues and cell lines and acted as a sponge for miR-23a-3p. Moreover, knockdown of miR-23a-3p suppressed the OVV-mediated antitumor effect and cell proliferation in PTC. In addition, we revealed that circRNA_103598 bound to miR-23a-3p as a sponge to promote IL-6 expression. CONCLUSION Our study first revealed the high expression and oncogenic function of circRNA_103598 in PTC cells. Then, circRNA_103598 sponged miR-23a-3p to upregulate IL-6 expression, with the resulted that cell proliferation was promoted and the OVV-mediated antitumor effect was enhanced by strengthening the viral replication, providing new insights into future therapy for PTC.
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Affiliation(s)
- Shuilong Zhang
- Department of Thyroid Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People’s Republic of China
| | - Qiang Wang
- Department of Thyroid Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People’s Republic of China
| | - Dewei Li
- Department of Thyroid Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People’s Republic of China
| | - Bo Huang
- Department of Gastrointestinal Pancreas, Hernia and Abdominal Wall Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People's Republic of China
| | - Xia Hou
- Department of Chest Radiotherapy, Tumor Hospital of Shanxi Province, Taiyuan, People's Republic of China
| | - Dongliang Wang
- Department of Thyroid Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People’s Republic of China
| | - Zhifu Xiao
- Department of Thyroid Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People’s Republic of China
| | - Hongjing Meng
- Department of Thyroid Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People’s Republic of China
| | - Yuhang Zhang
- Department of Thyroid Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People’s Republic of China
| | - Lingxiang Dong
- Department of Thyroid Surgery, Shanxi Provincial People’s Hospital, Taiyuan, People’s Republic of China
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Liu J, Li H, Wei C, Ding J, Lu J, Pan G, Mao A. circFAT1(e2) Promotes Papillary Thyroid Cancer Proliferation, Migration, and Invasion via the miRNA-873/ZEB1 Axis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2020; 2020:1459368. [PMID: 33133224 PMCID: PMC7593750 DOI: 10.1155/2020/1459368] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/14/2020] [Accepted: 09/17/2020] [Indexed: 12/21/2022]
Abstract
Circular RNAs (circRNAs) play an extremely important regulatory role in the occurrence and development of various malignant tumors including papillary thyroid cancer (PTC). circFAT1(e2) is a new type of circRNA derived from exon 2 of the FAT1 gene, which is distributed in the cytoplasm and nucleus of PTC cells. However, so far, the role of circFAT1(e2) in PTC is still unclear. In this study, circFAT1(e2) was found to be highly expressed in PTC cell lines and tissues. circFAT1(e2) knockdown suppressed PTC cell growth, migration, and invasion. Also, circFAT1(e2) acted as a sponge for potential microRNAs (miRNAs) to modulate cancer progression. A potential miRNA target was discovered to be miR-873 which was targeted by circFAT1(e2) in PTC. The dual-luciferase assay conducted later also confirmed that there was indeed a direct interaction between circFAT1(e2) and miR-873. This study also confirmed that circFAT1(e2) inhibited the miR-873 expression and thus promoted the ZEB1 expression, thus affecting the proliferation, metastasis, and invasion of PTC cells. In conclusion, the results of this study indicated that circFAT1(e2) played a carcinogenic role by targeting the miR-873/ZEB1 axis to promote PTC invasion and metastasis, which might become a potential novel target for therapy of PTC.
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Affiliation(s)
- Jiazhe Liu
- Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Hongchang Li
- Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Chuanchao Wei
- Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Junbin Ding
- Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Jingfeng Lu
- Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Gaofeng Pan
- Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
| | - Anwei Mao
- Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai 201199, China
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CircZFR serves as a prognostic marker to promote bladder cancer progression by regulating miR-377/ZEB2 signaling. Biosci Rep 2020; 39:221189. [PMID: 31746333 PMCID: PMC6893170 DOI: 10.1042/bsr20192779] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/21/2019] [Accepted: 11/20/2019] [Indexed: 12/16/2022] Open
Abstract
Circular RNAs (circRNAs) have been identified as crucial regulators of gene expression in human cancer biology. CircZFR is a novel identified circRNA and its effect in bladder cancer remains unclearly. In the present study, we aimed to investigate the role of circZFR in the progression of bladder cancer. First, we demonstrated that the expression of circZFR was higher in bladder cancer tissues and cells compared with adjacent non-tumor tissues and normal bladder epithelial cells. And higher circZFR levels were positively correlated with bladder cancer patients’ pathological T stage, grade, lymphatic metastasis, recurrence, progression-free survival (PFS) and overall survival (OS). Functionally, knockdown of circZFR could significantly prohibit cell growth, migration and invasion, arrest cell cycle as well as promote apoptosis of bladder cancer cells in vitro study. Mechanistically, we observed that circZFR could directly bind to miR-377 as sponge to promote ZEB2 expression in bladder cancer cells. In addition, rescue assays demonstrated that restoration of ZEB2 significantly impaired the suppressive effects of circZFR silencing on bladder cancer cells growth, migration and invasion. Taken together, our results illuminated that circZFR could be a prognostic biomarker in bladder cancer and exerted oncogenic roles through regulating miR-377/ZEB2 axis in bladder cancer, which indicated that circZFR could be a potential therapeutic target for bladder cancer patients treatment.
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Borran S, Ahmadi G, Rezaei S, Anari MM, Modabberi M, Azarash Z, Razaviyan J, Derakhshan M, Akhbari M, Mirzaei H. Circular RNAs: New players in thyroid cancer. Pathol Res Pract 2020; 216:153217. [PMID: 32987339 DOI: 10.1016/j.prp.2020.153217] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/02/2020] [Accepted: 09/10/2020] [Indexed: 12/11/2022]
Abstract
The prevalence of thyroid cancer the most frequent endocrine malignancy, is rapidly increasing. Most of thyroid cancers are relatively indolent, however, some cases still possess a risk of developing into lethal types of thyroid cancer. Regarding its multistep tumorigenesis, the determination of the underlying mechanisms is a vital issue for thyroid cancer therapy. Circular RNAs (circRNAs) are a type of non-coding RNAs with a closed loop structure. Numerous circRNAs have been identified in cancerous tissues. Mounting data recommends that the biological activities of circRNAs, such as serving as microRNA or ceRNAs sponges, interacting with proteins, modulating gene translation and transcription, suggesting that circRNAs will be potential targets as well as agents for the prognosis and diagnosis of diseases, including cancer. Given that circular RNAs acts as oncogenes or tumor suppressors in the thyroid cancer. Several studies documented that circular RNAs via microRNA and protein sponges could regulate a sequences of cellular and molecular mechanisms e.g., apoptosis, angiogenesis, tumor growth, and invasion that are involved in thyroid cancer pathogenesis. Herein, we summarized the role of circular RNAs as therapeutic and diagnostic biomarkers in the thyroid cancer. Moreover, we highlighted the role of these molecules in the pathogenesis of various cancers.
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Affiliation(s)
- Sarina Borran
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Gelavizh Ahmadi
- Department of Biotechnology, Faculty of Science, University of Maragheh, Maragheh, Iran
| | - Samaneh Rezaei
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical, Sciences, Mashhad, Iran
| | | | - Mohsen Modabberi
- Physical Medicine and Rehabilitation Department and Research Center, Shohada-e-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, School of Medicine, Tehran, Iran
| | - Ziba Azarash
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Javad Razaviyan
- Student Research Committee, School of Medicine Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Derakhshan
- Department of Pathology, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Masoume Akhbari
- Department of Molecular Medicine, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran.
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, I.R. Iran.
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Chen Z, Wang F, Xiong Y, Wang N, Gu Y, Qiu X. CircZFR functions as a sponge of miR-578 to promote breast cancer progression by regulating HIF1A expression. Cancer Cell Int 2020; 20:400. [PMID: 32831653 PMCID: PMC7437024 DOI: 10.1186/s12935-020-01492-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 08/11/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Breast cancer (BC) is the most common malignancy among women. Emerging studies have demonstrated that circular RNA (circRNA) zinc finger RNA binding protein (circZFR) serves as a crucial regulator in many human cancers. However, the role and mechanism of circZFR in BC tumorigenesis remain unclear. METHODS The levels of circZFR, miR-578 and hypoxia-inducible factor 1α (HIF1A) were detected by quantitative real-time polymerase chain reaction (qRT-PCR) or western blot. Cell viability, colony formation, apoptosis, migration and invasion capacities in vitro were determined by using the Cell Counting Kit-8 (CCK-8), standard colony formation, flow cytometry and transwell assays, respectively. Glucose uptake, lactate product and adenosine triphosphate (ATP) levels of cells in vitro were measured using the commercial human assay kits. Targeted relationships among circZFR, miR-578 and HIF1A in BC cell lines were verified by dual-luciferase reporter and RNA pulldown assays. Animal studies were performed to assess the effect of circZFR on tumor growth in vivo. RESULTS Our data indicated that circZFR was overexpressed in BC tissues and cells, and the increased circZFR level predicted poor prognosis of BC patients. CircZFR silencing or miR-578 overexpression repressed BC cell viability, colony formation, migration, invasion, and glycolysis and enhanced cell apoptosis in vitro. CircZFR silencing also hampered tumor growth in vivo. Mechanistically, circZFR acted as a sponge of miR-578, and circZFR silencing hindered BC cell malignant behaviors by miR-578. HIF1A was a functional target of miR-578 in regulating BC cell viability, colony formation, migration, invasion, glycolysis and apoptosis in vitro. Furthermore, circZFR modulated HIF1A expression through sponging miR-578. CONCLUSION Our findings first identified that the silencing of circZFR suppressed BC malignant progression in vitro via the regulation of the miR-578/HIF1A axis, providing evidence for the crucial involvement of circZFR in BC pathogenesis.
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Affiliation(s)
- Zhuo Chen
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000 China
| | - Fang Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000 China
| | - Youyi Xiong
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000 China
| | - Nan Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000 China
| | - Yuanting Gu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000 China
| | - Xinguang Qiu
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi District, Zhengzhou, 450000 Henan China
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