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Juli MSB, Boe-Hansen GB, Raza A, Forutan M, Ong CT, Siddle HV, Tabor AE. A systematic review of predictive, diagnostic, and prognostic biomarkers for detecting reproductive diseases in cattle using traditional and omics approaches. J Reprod Immunol 2024; 165:104315. [PMID: 39154625 DOI: 10.1016/j.jri.2024.104315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 07/30/2024] [Accepted: 08/11/2024] [Indexed: 08/20/2024]
Abstract
Reproductive diseases and illnesses pose significant challenges in cattle farming, affecting fertility, milk production, and overall herd health. In recent years, the integration of various omics approaches, including transcriptomics, proteomics, metagenomics, miRNAomics, and metabolomics, has revolutionized the study of these conditions. This systematic review summarised the findings from studies that investigated reproductive disease biomarkers in both male and female cattle. After extracting 6137 studies according to exclusion and inclusion criteria, a total of 60 studies were included in this review. All studies identified were associated with female cattle and none were related to reproductive diseases in bulls. The analysis highlights specific biomarkers, metabolic pathways, and microbial compositions associated with bovine reproductive disease conditions, providing valuable insights into the underlying molecular mechanisms of disease. Pro-inflammatory cytokines such as IL-1β, IL-8, IL-4, IL-6, TNFα and acute-phase response proteins such as SAA and HP have been identified as promising biomarkers for bovine reproductive diseases. However, further research is needed to validate these markers clinically and to explore potential strategies for improving cow reproductive health. The role of bulls as carriers of venereal diseases has been underestimated in the current literature and therefore needs more attention to understand their impact on infectious reproductive diseases of female cattle.
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Affiliation(s)
- Mst Sogra Banu Juli
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), St Lucia, Queensland 4067, Australia.
| | - Gry B Boe-Hansen
- The University of Queensland, School of Veterinary Science, Gatton, Queensland 4343, Australia.
| | - Ali Raza
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), St Lucia, Queensland 4067, Australia.
| | - Mehrnush Forutan
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), St Lucia, Queensland 4067, Australia.
| | - Chian Teng Ong
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), St Lucia, Queensland 4067, Australia.
| | - Hannah V Siddle
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), St Lucia, Queensland 4067, Australia.
| | - Ala E Tabor
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), St Lucia, Queensland 4067, Australia; The University of Queensland, School of Chemistry and Molecular Biosciences, St Lucia, Queensland 4072, Australia.
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Hussen BM, Abdullah SR, Mohammed AA, Rasul MF, Hussein AM, Eslami S, Glassy MC, Taheri M. Advanced strategies of targeting circular RNAs as therapeutic approaches in colorectal cancer drug resistance. Pathol Res Pract 2024; 260:155402. [PMID: 38885593 DOI: 10.1016/j.prp.2024.155402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 06/03/2024] [Accepted: 06/09/2024] [Indexed: 06/20/2024]
Abstract
Colorectal cancer (CRC) stands second in terms of mortality and third among the highest prevalent kinds of cancer globally. CRC prevalence is rising in moderately and poorly developed regions and is greater in economically advanced regions. Despite breakthroughs in targeted therapy, resistance to chemotherapeutics remains a significant challenge in the long-term management of CRC. Circular RNAs (circRNAs) have been involved in growing cancer therapy resistance, particularly in CRC, according to an increasing number of studies in recent years. CircRNAs are one of the novel subclasses of non-coding RNAs, previously thought of as viroid. According to studies, circRNAs have been recommended as biological markers for therapeutic targets and diagnostic and prognostic purposes. That is particularly notable given that the expression of circRNAs has been linked to the hallmarks of CRC since they are responsible for drug resistance in CRC patients; thereby, circRNAs are significant for chemotherapy failure. Moreover, knowledge concerning circRNAs remains relatively unclear despite using all these advanced techniques. Here, in this study, we will go over the most recent published work to highlight the critical roles of circRNAs in CRC development and drug resistance and highlight the main strategies to overcome drug resistance to improve clinical outcomes.
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Affiliation(s)
- Bashdar Mahmud Hussen
- Department of Biomedical Sciences, College of Science, Cihan University-Erbil, Kurdistan Region, Iraq; Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
| | - Snur Rasool Abdullah
- Department of Medical Laboratory Science, College of Health Sciences, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | | | - Mohammed Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | - Ali M Hussein
- Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
| | - Solat Eslami
- Department of Medical Biotechnology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran; Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Mark C Glassy
- Translational Neuro-Oncology Laboratory, San Diego (UCSD) Moores Cancer Center, University of California, CA, United States
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany.
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3
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He H, Zhang Q, Gu Q, Yang H, Yue C. CircGNAO1 strengthens its host gene GNAO1 expression for suppression of hepatocarcinogenesis. Heliyon 2024; 10:e32848. [PMID: 38988568 PMCID: PMC11233958 DOI: 10.1016/j.heliyon.2024.e32848] [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: 03/23/2023] [Revised: 06/08/2024] [Accepted: 06/10/2024] [Indexed: 07/12/2024] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most prevalent primary liver carcinoma. Guanine nucleotide-binding protein, α-activating activity polypeptide O (GNAO1) was reported to be under-expressed in HCC tissues. This study aimed to investigate the GNAO1-derived circular RNA (circRNA) and its molecular mechanisms in HCC. Methods Real-time quantitative polymerase chain reaction (RT-qPCR) and Western blot were applied to examine RNA and protein levels. Functional experiments were performed to study HCC cell proliferation, cell cycle and cellular senescence. The interactions among circGNAO1, GNAO1 and DNA methyltransferase 1 (DNMT1) were examined by mechanism assays. The methylation level was analyzed by bisulfite sequencing PCR (BSP). Results CircGNAO1 is down-regulated and positively associated with GNAO1 in HCC tissues. Overexpression of circGNAO1 inhibits cell proliferation, induces cell cycle arrest and facilitates cell senescence in HCC cells. CircGNAO1 facilitates the progression of HCC via modulating GNAO1. Mechanistically, circGNAO1 enhances the transcription of GNAO1 by sequestering DNMT1, thereby up-regulating GNAO1 expression in HCC cells. Conclusions CircGNAO1 up-regulates its host gene GNAO1 expression for suppression of hepatocarcinogenesis.
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Affiliation(s)
- Hongwei He
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai, 201599, China
| | - Qing Zhang
- Trade Union of Shandong Second Provincial General Hospital, Jinan, 250022, Shandong Province, China
| | - Qiyun Gu
- Department of Hepatobiliary Surgery, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai, 201599, China
| | - Hui Yang
- Department of Neurology Medicine, The Second Hospital, Shandong University, Jinan, 250033, Shandong Province, China
| | - Caibin Yue
- General Medicine Department, The Second Hospital, Shandong University, Jinan, 250033, Shandong Province, China
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Gao FF, Chen DQ, Jiang YT, Han CF, Lin BY, Yang Z, Quan JH, Xiong YH, Chen XT. Functional roles of circular RNAs in lung injury. Front Pharmacol 2024; 15:1354806. [PMID: 38601461 PMCID: PMC11004487 DOI: 10.3389/fphar.2024.1354806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/16/2024] [Indexed: 04/12/2024] Open
Abstract
Lung injury leads to respiratory dysfunction, low quality of life, and even life-threatening conditions. Circular RNAs (circRNAs) are endogenous RNAs produced by selective RNA splicing. Studies have reported their involvement in the progression of lung injury. Understanding the roles of circRNAs in lung injury may aid in elucidating the underlying mechanisms and provide new therapeutic targets. Thus, in this review, we aimed to summarize and discuss the characteristics and biological functions of circRNAs, and their roles in lung injury from existing research, to provide a theoretical basis for the use of circRNAs as a diagnostic and therapeutic target for lung injury.
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Affiliation(s)
- Fei-Fei Gao
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Dian-Qing Chen
- Department of Hand and Foot Surgery, Armed Police Corps Hospital of Hebei, Shijiazhuang, Hebei, China
| | - Yue-Tong Jiang
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Cui-Fei Han
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Bi-Yun Lin
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Zhan Yang
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Juan-Hua Quan
- Laboratory of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Ying-Huan Xiong
- Biotissue Repository, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Xin-Tian Chen
- Laboratory of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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Yuan L, Duan J, Zhou H. Perspectives of circular RNAs in diabetic complications from biological markers to potential therapeutic targets (Review). Mol Med Rep 2023; 28:194. [PMID: 37681455 PMCID: PMC10502942 DOI: 10.3892/mmr.2023.13081] [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: 02/13/2023] [Accepted: 08/17/2023] [Indexed: 09/09/2023] Open
Abstract
Chronic complications of diabetes increase mortality and disability of patients. It is crucial to find potential early biomarkers and provide novel therapeutic strategies for diabetic complications. Circular RNAs (circRNAs), covalently closed RNA molecules in eukaryotes, have high stability. Recent studies have confirmed that differentially expressed circRNAs have a vital role in diabetic complications. Certain circRNAs, such as circRNA ankyrin repeat domain 36, circRNA homeodomain‑interacting protein kinase 3 (circHIPK3) and circRNA WD repeat domain 77, are associated with inflammation, endothelial cell apoptosis and smooth muscle cell proliferation, leading to vascular endothelial dysfunction and atherosclerosis. CircRNA LDL receptor related protein 6, circRNA actin related protein 2, circ_0000064, circ‑0101383, circ_0123996, hsa_circ_0003928 and circ_0000285 mediate inflammation, apoptosis and autophagy of podocytes, mesangial cell hypertrophy and proliferation, as well as tubulointerstitial fibrosis, in diabetic nephropathy by regulating the expression of microRNAs and proteins. Circ_0005015, circRNA PWWP domain containing 2A, circRNA zinc finger protein 532, circRNA zinc finger protein 609, circRNA DNA methyltransferase 3β, circRNA collagen type I α2 chain and circHIPK3 widely affect multiple biological processes of diabetic retinopathy. Furthermore, circ_000203, circ_010567, circHIPK3, hsa_circ_0076631 and circRNA cerebellar degeneration‑related protein 1 antisense are involved in the pathology of diabetic cardiomyopathy. CircHIPK3 is the most well‑studied circRNA in the field of diabetic complications and is most likely to become a biological marker and therapeutic target for diabetic complications. The applications of circRNAs may be a promising treatment strategy for human diseases at the molecular level. The relationship between circRNAs and diabetic complications is summarized in the present study. Of note, circRNA‑targeted therapy and the role of circRNAs as biomarkers may potentially be used in diabetic complications in the future.
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Affiliation(s)
- Lingling Yuan
- Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Jinsheng Duan
- Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Hong Zhou
- Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
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Alkhathami AG, Sahib AS, Al Fayi MS, Fadhil AA, Jawad MA, Shafik SA, Sultan SJ, Almulla AF, Shen M. Glycolysis in human cancers: Emphasis circRNA/glycolysis axis and nanoparticles in glycolysis regulation in cancer therapy. ENVIRONMENTAL RESEARCH 2023; 234:116007. [PMID: 37119844 DOI: 10.1016/j.envres.2023.116007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 06/19/2023]
Abstract
The metabolism of cancer has been an interesting hallmark and metabolic reprogramming, especially the change from oxidative phosphorylation in mitochondria to glucose metabolism known as glycolysis occurs in cancer. The molecular profile of glycolysis, related molecular pathways and enzymes involved in this mechanism such as hexokinase have been fully understood. The glycolysis inhibition can significantly decrease tumorigenesis. On the other hand, circRNAs are new emerging non-coding RNA (ncRNA) molecules with potential biological functions and aberrant expression in cancer cells which have received high attention in recent years. CircRNAs have a unique covalently closed loop structure which makes them highly stable and reliable biomarkers in cancer. CircRNAs are regulators of molecular mechanisms including glycolysis. The enzymes involved in the glycolysis mechanism such as hexokinase are regulated by circRNAs to modulate tumor progression. Induction of glycolysis by circRNAs can significantly increase proliferation rate of cancer cells given access to energy and enhance metastasis. CircRNAs regulating glycolysis can influence drug resistance in cancers because of theirimpact on malignancy of tumor cells upon glycolysis induction. TRIM44, CDCA3, SKA2 and ROCK1 are among the downstream targets of circRNAs in regulating glycolysis in cancer. Additionally, microRNAs are key regulators of glycolysis mechanism in cancer cells and can affect related molecular pathways and enzymes. CircRNAs sponge miRNAs to regulate glycolysis as a main upstream mediator. Moreover, nanoparticles have been emerged as new tools in tumorigenesis suppression and in addition to drug and gene delivery, then mediate cancer immunotherapy and can be used for vaccine development. The nanoparticles can delivery circRNAs in cancer therapy and they are promising candidates in regulation of glycolysis, its suppression and inhibition of related pathways such as HIF-1α. The stimuli-responsive nanoparticles and ligand-functionalized ones have been developed for selective targeting of glycolysis and cancer cells, and mediating carcinogenesis inhibition.
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Affiliation(s)
- Ali G Alkhathami
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia.
| | - Ameer S Sahib
- Department of Pharmacy, Al- Mustaqbal University College, 51001 Hilla, Iraq
| | - Majed Saad Al Fayi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Mohammed Abed Jawad
- Department of Medical Laboratories Technology, Al-Nisour University College, Iraq
| | - Sahar Ahmad Shafik
- Professor of Community Health Nursing, Faculty of Nursing, Fayum University, Egypt; College of Nursing, National University of Science and Technology, Iraq
| | | | - Abbas F Almulla
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Min Shen
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University, China.
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Pisignano G, Michael DC, Visal TH, Pirlog R, Ladomery M, Calin GA. Going circular: history, present, and future of circRNAs in cancer. Oncogene 2023; 42:2783-2800. [PMID: 37587333 PMCID: PMC10504067 DOI: 10.1038/s41388-023-02780-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 08/18/2023]
Abstract
To date, thousands of highly abundant and conserved single-stranded RNA molecules shaped into ring structures (circRNAs) have been identified. CircRNAs are multifunctional molecules that have been shown to regulate gene expression transcriptionally and post-transcriptionally and exhibit distinct tissue- and development-specific expression patterns associated with a variety of normal and disease conditions, including cancer pathogenesis. Over the past years, due to their intrinsic stability and resistance to ribonucleases, particular attention has been drawn to their use as reliable diagnostic and prognostic biomarkers in cancer diagnosis, treatment, and prevention. However, there are some critical caveats to their utility in the clinic. Their circular shape limits their annotation and a complete functional elucidation is lacking. This makes their detection and biomedical application still challenging. Herein, we review the current knowledge of circRNA biogenesis and function, and of their involvement in tumorigenesis and potential utility in cancer-targeted therapy.
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Affiliation(s)
- Giuseppina Pisignano
- Department of Life Sciences, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | - David C Michael
- Department of Life Sciences, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Tanvi H Visal
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Radu Pirlog
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael Ladomery
- Faculty of Health and Applied Sciences, University of the West of England, Coldharbour Lane, Frenchay, Bristol, BS16 1QY, UK
| | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Nuñez-Corona D, Contreras-Sanzón E, Puente-Rivera J, Arreola R, Camacho-Nuez M, Cruz Santiago J, Estrella-Parra EA, Torres-Romero JC, López-Camarillo C, Alvarez-Sánchez ME. Epigenetic Factors and ncRNAs in Testicular Cancer. Int J Mol Sci 2023; 24:12194. [PMID: 37569569 PMCID: PMC10418327 DOI: 10.3390/ijms241512194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Testicular cancer is the most prevalent tumor among males aged 15 to 35, resulting in a significant number of newly diagnosed cases and fatalities annually. Non-coding RNAs (ncRNAs) have emerged as key regulators in various cellular processes and pathologies, including testicular cancer. Their involvement in gene regulation, coding, decoding, and overall gene expression control suggests their potential as targets for alternative treatment approaches for this type of cancer. Furthermore, epigenetic modifications, such as histone modifications, DNA methylation, and the regulation by microRNA (miRNA), have been implicated in testicular tumor progression and treatment response. Epigenetics may also offer critical insights for prognostic evaluation and targeted therapies in patients with testicular germ cell tumors (TGCT). This comprehensive review aims to present the latest discoveries regarding the involvement of some proteins and ncRNAs, mainly miRNAs and lncRNA, in the epigenetic aspect of testicular cancer, emphasizing their relevance in pathogenesis and their potential, given the fact that their specific expression holds promise for prognostic evaluation and targeted therapies.
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Affiliation(s)
- David Nuñez-Corona
- Posgrado en Ciencias Genómicas, Universidad Autónoma De México (UACM), San Lorenzo 290, Col. Del Valle, México City 03100, Mexico
| | - Estefania Contreras-Sanzón
- Posgrado en Ciencias Genómicas, Universidad Autónoma De México (UACM), San Lorenzo 290, Col. Del Valle, México City 03100, Mexico
| | | | - Rodrigo Arreola
- Departamento De Genética, Instituto Nacional De Psiquiatría “Ramón De la Fuente Muñiz”, Calz. Mexico, Xochimilco 101, Col. Huipulco, Tlalpan, México City 14370, Mexico
| | - Minerva Camacho-Nuez
- Posgrado en Ciencias Genómicas, Universidad Autónoma De México (UACM), San Lorenzo 290, Col. Del Valle, México City 03100, Mexico
| | - José Cruz Santiago
- Hospital De Especialidades Centro Médico Nacional La Raza, IMSS, México City 02990, Mexico
| | - Edgar Antonio Estrella-Parra
- Laboratorio De Fitoquímica, UBIPRO, FES-Iztacala, Unidad Nacional Autónoma de México, Av. De los Barrios No.1, Los Reyes Iztacala, Tlalnepantla 54090, Mexico
| | - Julio César Torres-Romero
- Laboratorio De Bioquímica y Genética Molecular, Facultad De Química, Universidad Autónoma De Yucatán, Calle 43 s/n x Calle 96, Paseo De las Fuentes y 40, Col. Inalambrica, Yucatán 97069, Mexico
| | - César López-Camarillo
- Posgrado en Ciencias Genómicas, Universidad Autónoma De México (UACM), San Lorenzo 290, Col. Del Valle, México City 03100, Mexico
| | - María Elizbeth Alvarez-Sánchez
- Posgrado en Ciencias Genómicas, Universidad Autónoma De México (UACM), San Lorenzo 290, Col. Del Valle, México City 03100, Mexico
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Yin W, Zhang Z, Xiao Z, Li X, Luo S, Zhou Z. Circular RNAs in diabetes and its complications: Current knowledge and future prospects. Front Genet 2022; 13:1006307. [PMID: 36386812 PMCID: PMC9643748 DOI: 10.3389/fgene.2022.1006307] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/17/2022] [Indexed: 07/26/2023] Open
Abstract
A novel class of non-coding RNA transcripts called circular RNAs (circRNAs) have been the subject of significant recent studies. Accumulating evidence points that circRNAs play an important role in the cellular processes, inflammatory expression, and immune responses through sponging miRNA, binding, or translating in proteins. Studies have found that circRNAs are involved in the physiologic and pathologic processes of diabetes. There has been an increased focus on the relevance of between abnormal circRNA expression and the development and progression of various types of diabetes and diabetes-related diseases. These circRNAs not only serve as promising diagnostic and prognostic molecular biomarkers, but also have important biological roles in islet cells, diabetes, and its complications. In addition, many circRNA signaling pathways have been found to regulate the occurrence and development of diabetes. Here we comprehensively review and discuss recent advances in our understanding of the physiologic function and regulatory mechanisms of circRNAs on pancreatic islet cells, different subtypes in diabetes, and diabetic complications.
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The Targeting of Noncoding RNAs by Quercetin in Cancer Prevention and Therapy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4330681. [PMID: 35656022 PMCID: PMC9155922 DOI: 10.1155/2022/4330681] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 05/11/2022] [Indexed: 12/14/2022]
Abstract
The dietary flavonoid quercetin is ubiquitously distributed in fruits, vegetables, and medicinal herbs. Quercetin has been a focal point in recent years due to its versatile health-promoting benefits and high pharmacological values. It has well documented that quercetin exerts anticancer actions by inhibiting cell proliferation, inducing apoptosis, and retarding the invasion and metastasis of cancer cells. However, the exact mechanism of quercetin-mediated cancer chemoprevention is still not fully understood. With the advances in high-throughput sequencing technologies, the intricate oncogenic signaling networks have been gradually characterized. Increasing evidence on the close association between noncoding RNA (ncRNAs) and cancer etiopathogenesis emphasizes the potential of ncRNAs as promising molecular targets for cancer treatment. Available experimental studies indicate that quercetin can dominate multiple cancer-associated ncRNAs, hence repressing carcinogenesis and cancer development. Thus, modulation of ncRNAs serves as a key mechanism responsible for the anticancer effects of quercetin. In this review, we focus on the chemopreventive effects of quercetin on cancer pathogenesis by targeting cancer-relevant ncRNAs, supporting the viewpoint that quercetin holds promise as a drug candidate for cancer chemoprevention and chemotherapy. An in-depth comprehension of the interplay between quercetin and ncRNAs in the inhibition of cancer development and progression will raise the possibility of developing this bioactive compound as an anticancer agent that could be highly efficacious and safe in clinical practice.
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Huang L, Pei T, Wu G, Liu J, Pan W, Pan X. Circular RNAs as a Diagnostic Biomarker in Oral Squamous Cell Carcinoma: A Meta-Analysis. J Oral Maxillofac Surg 2021; 80:756-766. [PMID: 34958738 DOI: 10.1016/j.joms.2021.11.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 11/25/2021] [Accepted: 11/29/2021] [Indexed: 01/01/2023]
Abstract
PURPOSE Studies have found a positive correlation between various cancers and circular RNAs (circRNAs), which are newly discovered noncoding RNAs. However, limited scientific evidence is available to prove the clinical value of circRNAs in the presentation of oral squamous cell carcinoma (OSCC). This study aimed to comprehensively explore the potential of circRNAs as diagnostic indexes of OSCC. METHODS Online databases were systematically searched to identify published literature on the discovery of circRNAs in OSCC. Data were acquired from each reviewed study and collated to create a 2 × 2 eventuality table. Hierarchical analysis of the literature was conducted for the type of cancer, year of publication, and the sample size of each study. The diagnostic accuracy was calculated using indexes such as the pooled sensitivity and specificity and critically assessed using the Quality Assessment for Studies of Diagnostic Accuracy 2. RESULTS This meta-analysis included findings of 6 studies on 335 patients diagnosed with OSCC. These 6 studies examined 7 circRNAs, 5 in tissues and 2 in the saliva of patients with OSCC. When used as a diagnostic tool for OSCC, circRNAs manifested a sensitivity level of 0.72 (95% confidence interval: 0.67 to 0.76) and a degree of specificity of 0.81 (95% confidence interval: 0.76 to 0.85), with a general projected probability rate of 3.82 (95% confidence interval: 2.98 to 4.91) being positive and 0.35 (95% confidence interval: 0.29 to 0.41) being negative. The combined probability rate was 11.07 (95% confidence interval: 7.64 to 16.04), comprising a total of 0.76 (95% confidence interval: 0.72 to 0.79) of the region under the curve. A higher diagnostic value was found for salivary circRNAs (diagnostic odds ratio = 17.52; 95% CI: 10.11 to 30.35) than for tissue circRNAs (diagnostic odds ratio = 8.47; 95% CI: 5.6 to 12.83). This indicated that circRNAs showed a good discrimination ability as biomarkers of OSCC. CONCLUSIONS circRNAs showed high accuracy in the diagnosis of OSCC and could be used as prospective biomarkers to facilitate the diagnostic process.
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Affiliation(s)
- Long Huang
- Resident, The First Affiliated Hospital/Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Tianchu Pei
- Resident, The First Affiliated Hospital/Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Guohui Wu
- Resident, The First Affiliated Hospital/Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Jiamin Liu
- Resident, The First Affiliated Hospital/Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Wenna Pan
- Resident, The First Affiliated Hospital/Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Xuan Pan
- Professor, The First Affiliated Hospital/Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China.
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Molecular Markers to Predict Prognosis and Treatment Response in Uterine Cervical Cancer. Cancers (Basel) 2021; 13:cancers13225748. [PMID: 34830902 PMCID: PMC8616420 DOI: 10.3390/cancers13225748] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/12/2021] [Accepted: 11/14/2021] [Indexed: 02/07/2023] Open
Abstract
Uterine cervical cancer is one of the leading causes of cancer-related mortality in women worldwide. Each year, over half a million new cases are estimated, resulting in more than 300,000 deaths. While less-invasive, fertility-preserving surgical procedures can be offered to women in early stages, treatment for locally advanced disease may include radical hysterectomy, primary chemoradiotherapy (CRT) or a combination of these modalities. Concurrent platinum-based chemoradiotherapy regimens remain the first-line treatments for locally advanced cervical cancer. Despite achievements such as the introduction of angiogenesis inhibitors, and more recently immunotherapies, the overall survival of women with persistent, recurrent or metastatic disease has not been extended significantly in the last decades. Furthermore, a broad spectrum of molecular markers to predict therapy response and survival and to identify patients with high- and low-risk constellations is missing. Implementation of these markers, however, may help to further improve treatment and to develop new targeted therapies. This review aims to provide comprehensive insights into the complex mechanisms of cervical cancer pathogenesis within the context of molecular markers for predicting treatment response and prognosis.
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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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14
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Zhou Q, Ju LL, Ji X, Cao YL, Shao JG, Chen L. Plasma circRNAs as Biomarkers in Cancer. Cancer Manag Res 2021; 13:7325-7337. [PMID: 34584458 PMCID: PMC8464305 DOI: 10.2147/cmar.s330228] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 08/26/2021] [Indexed: 12/20/2022] Open
Abstract
The incidence and mortality of cancer are increasing each year. At present, the sensitivity and specificity of the blood biomarkers that were used in clinical practice are low, which make the detection rate of cancer decrease. With advances in bioinformatics and technology, some non-coding RNA as biomarkers can be easily detected through some traditional and new technologies. Circular RNAs (circRNAs) are non-coding RNAs, that is, they do not encode proteins, and have important regulatory functions. CircRNAs can remain stable in bodily fluids, such as in saliva, blood, urine, and especially plasma. The difference in the expression of plasma circRNAs between cancer patients and normal people may suggest that plasma circRNAs may play an important role in the occurrence and development of cancer. In this review, we summarized the clinical effect of plasma circRNAs in several high-incidence cancers. CircRNAs may be effective biomarkers for tumour diagnosis, treatment selection and prognosis evaluation.
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Affiliation(s)
- Qian Zhou
- Medical School of Nantong University, Nantong Third People's Hospital, Nantong, Jiangsu, People's Republic of China
| | - Lin-Ling Ju
- Nantong Institute of Liver Disease, Nantong Third People's Hospital, Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Xiang Ji
- Medical School of Nantong University, Nantong Third People's Hospital, Nantong, Jiangsu, People's Republic of China
| | - Ya-Li Cao
- Nantong Institute of Liver Disease, Nantong Third People's Hospital, Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Jian-Guo Shao
- Nantong Institute of Liver Disease, Nantong Third People's Hospital, Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Lin Chen
- Nantong Institute of Liver Disease, Nantong Third People's Hospital, Nantong University, Nantong, Jiangsu, People's Republic of China
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15
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Su Y, Zhu C, Wang B, Zheng H, McAlister V, Lacefield JC, Quan D, Mele T, Greasley A, Liu K, Zheng X. Circular RNA Foxo3 in cardiac ischemia-reperfusion injury in heart transplantation: A new regulator and target. Am J Transplant 2021; 21:2992-3004. [PMID: 33382168 DOI: 10.1111/ajt.16475] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/03/2020] [Accepted: 12/23/2020] [Indexed: 01/25/2023]
Abstract
Ischemia-reperfusion (I/R) injury occurring in heart transplantation (HT) remains as a leading cause of transplant heart graft failure. Circular RNAs (circRNAs) play important roles in gene regulation and diseases. However, the impact of circRNAs on I/R injury during HT remains unknown. This study aims to investigate the role of circular RNA Foxo3 (circFoxo3) in I/R injury in HT. Using an in vivo mouse HT model and an in vitro cardiomyocyte culture model, we demonstrated that circFoxo3 is significantly upregulated in I/R-injured hearts and hypoxia/reoxygenation (H/R)-damaged cardiomyocytes. Knockdown of circFoxo3 using siRNA not only reduces cell apoptosis and death, mitochondrial damage, and expression of apoptosis/death-related genes in vitro, but also protects heart grafts from prolonged cold I/R injury in HT. We also show that circFoxo3 interacts with Foxo3 proteins and inhibits the phosphorylation of Foxo3 and that it indirectly affects the expression of miR-433 and miR-136. In conclusion, circRNA is involved in I/R injury in HT and knockdown of circFoxo3 with siRNA can reduce I/R injury and improve heart graft function through interaction with Foxo3. This study highlights that circRNA is a new type of molecular regulator and a potential target for preventing I/R injury in HT.
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Affiliation(s)
- Yale Su
- Department of Cardiovascular Surgery, The Second Hospital of Jilin University, Changchun, China.,Department of Pathology, Western University, London, Ontario, Canada
| | - Cuilin Zhu
- Department of Cardiovascular Surgery, The Second Hospital of Jilin University, Changchun, China.,Department of Pathology, Western University, London, Ontario, Canada
| | - Bowen Wang
- Department of Cardiovascular Surgery, The Second Hospital of Jilin University, Changchun, China.,Department of Pathology, Western University, London, Ontario, Canada
| | - Hao Zheng
- Department of Pathology, Western University, London, Ontario, Canada
| | - Vivian McAlister
- Department of Surgery, Western University, London, Ontario, Canada.,London Health Sciences Centre, London, Ontario, Canada
| | - James C Lacefield
- Department of Medical Biophysics, Western University, London, Ontario, Canada.,Department of Electrical & Computer Engineering, Western University, London, Ontario, Canada.,Robarts Research Institute, Western University, London, Ontario, Canada.,Lawson Health Research Institute, London, Ontario, Canada
| | - Douglas Quan
- Department of Surgery, Western University, London, Ontario, Canada.,London Health Sciences Centre, London, Ontario, Canada
| | - Tina Mele
- Department of Surgery, Western University, London, Ontario, Canada.,London Health Sciences Centre, London, Ontario, Canada
| | - Adam Greasley
- Department of Pathology, Western University, London, Ontario, Canada
| | - Kexiang Liu
- Department of Cardiovascular Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Xiufen Zheng
- Department of Pathology, Western University, London, Ontario, Canada.,Department of Surgery, Western University, London, Ontario, Canada.,Lawson Health Research Institute, London, Ontario, Canada.,Department of Oncology, Western University, London, Canada
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16
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Khorsandi K, Esfahani H, Abrahamse H. Characteristics of circRNA and its approach as diagnostic tool in melanoma. Expert Rev Mol Diagn 2021; 21:1079-1094. [PMID: 34380368 DOI: 10.1080/14737159.2021.1967749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
One of the most common types of cancer in the world is skin cancer, which has been divided into two groups: non-melanoma and melanoma skin cancer. Different external and internal agents are considered as risk factors for melanoma skin cancer pathogenesis but the exact mechanisms are not yet confirmed. Genetic and epigenetic changes, UV exposure, arsenic compounds, and chemical substances are contributory factors to the development of melanoma. A correlation has emerged between new therapies and the discovery of a basic molecular pattern for skin cancer patients. Circular RNAs (circRNAs) are described as a unique group of extensively expressed endogenous regulatory RNAs with closed-loop structure bonds connecting the 5' and 3' ends, which are commonly expressed in mammalian cells. In this review, we describe the biogenesis of circular RNAs and its function in cancerous conditions focusing on the crosstalk between different circRNAs and melanoma. Increasing evidence suggests that circRNAs appears to be relative to the origin and development of skin-related diseases like malignant melanoma. Different circular RNAs like hsa_circ_0025039, hsa_circRNA006612, circRNA005537, and circANRIL, by targeting different cellular and molecular targets (e.g., CDK4, DAB2IP, ZEB1, miR-889, and let-7 c-3p), can participate in melanoma cancer progression.
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Affiliation(s)
- Khatereh Khorsandi
- Department of Photodynamic, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
| | - HomaSadat Esfahani
- Department of Photodynamic, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
| | - Heidi Abrahamse
- Laser Research Centre, Nrf SARChI Chair: Laser Applications in Health, Faculty of Health Sciences, University of Johannesburg, Auckland Park, South Africa
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17
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Shi Q, Zhou C, Xie R, Li M, Shen P, Lu Y, Ma S. CircCNIH4 inhibits gastric cancer progression via regulating DKK2 and FRZB expression and Wnt/β-catenin pathway. ACTA ACUST UNITED AC 2021; 28:19. [PMID: 34364402 PMCID: PMC8349030 DOI: 10.1186/s40709-021-00140-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/13/2021] [Indexed: 12/12/2022]
Abstract
Background Circular RNAs (circRNAs) have been reported to play an important role in tumor progression in various cancer types, including gastric cancer. The aim of this study was to investigate the role of circCNIH4 (hsa_circ_0000190) in gastric cancer and the underlying mechanism. Methods The expression levels of circCNIH4 and Wnt antagonist genes were detected by quantitative real-time polymerase chain reaction (qRT-PCR). The protein levels of β-catenin, Ki67, Dickkopf 2 (DKK2) and Frizzled related protein (FRZB) were measured by western blot. Ectopic overexpression or knockdown of circCNIH4, proliferation, apoptosis, migration and invasion by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT), flow cytometry and transwell assay in vitro, and in vivo experiment, were employed to assess the role of circCNIH4 in gastric cancer. Results CircCNIH4 was downregulated in gastric cancer tissues and cells. Overexpression of circCNIH4 inhibited gastric cancer cell proliferation, migration and invasion and promoted apoptosis by inactivating Wnt/β-catenin pathway in vitro. CircCNIH4 induced the expression of DKK2 and FRZB in gastric cancer cells. Moreover, silencing of DKK2 or FRZB reversed circCNIH4 overexpression-mediated effects on gastric cancer cells. Additionally, circCNIH4 suppressed tumor growth via regulating DKK2 and FRZB expression in gastric cancer in vivo. Conclusion Our study demonstrated that circCNIH4 played a tumor-inhibiting role through upregulating DKK2 and FRZB expression and suppressing Wnt/β-catenin pathway in gastric cancer, which might provide a potential biomarker for the diagnosis and treatment of gastric cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s40709-021-00140-x.
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Affiliation(s)
- Qi Shi
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Chuanwen Zhou
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Rui Xie
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Miaomiao Li
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Peng Shen
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Yining Lu
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Shijie Ma
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China.
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18
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CircDIP2C ameliorates oxidized low-density lipoprotein-induced cell dysfunction by binding to miR-556-5p to induce TET2 in human umbilical vein endothelial cells. Vascul Pharmacol 2021; 139:106887. [PMID: 34147657 DOI: 10.1016/j.vph.2021.106887] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/24/2021] [Accepted: 06/15/2021] [Indexed: 12/20/2022]
Abstract
Circular RNAs (circRNAs) are a group of conserved noncoding RNAs. Recent reports reveal that circRNAs play vital parts in cardiovascular system, including atherosclerosis (AS). The present study is designed to reveal the role of circRNA DIP2C-disco interacting protein 2 homolog C (circDIP2C) in oxidized low-density lipoprotein (ox-LDL)-triggered damage of human umbilical vein endothelial cells (HUVECs). The expression levels of circDIP2C, microRNA-556-5p (miR-556-5p) and tet methylcytosine dioxygenase 2 (TET2) were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Protein expression was determined by western blot analysis. Cell viability and angiogenesis were demonstrated by cell counting kit-8 and tube formation assays, respectively. The levels of reactive oxygen species (ROS) and malondialdehyde (MDA) were checked by ROS and MDA determination assays. Superoxide dismutase (SOD) and lactate dehydrogenase (LDH) activity assays were performed to detect the activity of SOD and LDH. The binding sites of miR-556-5p in circDIP2C or TET2 were predicted by online databases, and identified by dual-luciferase reporter, RNA immunoprecipitation and RNA pull-down assays. CircDIP2C and TET2 expression were obviously decreased, while miR-556-5p expression was increased in ox-LDL-induced HUVECs in comparison with untreated HUVECs. Ox-LDL treatment inhibited cell viability and angiogenesis, promoted oxidative stress, enhanced cytotoxicity and activated NLR family pyrin domain containing 3 (NLRP3) inflammasome pathway. CircDIP2C upregulation protected HUVECs from ox-LDL-induced injury. Additionally, circDIP2C directly bound to miR-556-5p, which was further found to target TET2. MiR-556-5p mimics or TET2 silencing could attenuate the effect of circDIP2C overexpression on ox-LDL-induced cell disorder. Thus, we came a conclusion that circDIP2C protected against ox-LDL-induced HUVEC damage by upregulating TET2 expression through sponging miR-556-5p, which provided a strategy for the therapy of AS.
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19
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Chen XT, Li ZW, Zhao X, Li ML, Hou PF, Chu SF, Zheng JN, Bai J. Role of Circular RNA in Kidney-Related Diseases. Front Pharmacol 2021; 12:615882. [PMID: 33776764 PMCID: PMC7990792 DOI: 10.3389/fphar.2021.615882] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 02/02/2021] [Indexed: 12/13/2022] Open
Abstract
The kidney is vital in maintaining fluid, electrolyte, and acid–base balance. Kidney-related diseases, which are an increasing public health issue, can happen to people of any age and at any time. Circular RNAs (circRNAs) are endogenous RNA that are produced by selective RNA splicing and are involved in progression of various diseases. Studies have shown that various kidney diseases, including renal cell carcinoma, acute kidney injury, and chronic kidney disease, are linked to circRNAs. This review outlines the characteristics and biological functions of circRNAs and discusses specific studies that provide insights into the function and potential of circRNAs for application in the diagnosis and treatment of kidney-related diseases.
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Affiliation(s)
- Xin-Tian Chen
- Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Zhong-Wei Li
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xue Zhao
- Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Min-Le Li
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ping-Fu Hou
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Su-Fang Chu
- Cancer Institute, Xuzhou Medical University, Xuzhou, China
| | - Jun-Nian Zheng
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Jin Bai
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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20
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Dai X, Cheng Y, Wang C, Huang J, Chao J. Role of circular RNAs in visceral organ fibrosis. Food Chem Toxicol 2021; 150:112074. [PMID: 33610620 DOI: 10.1016/j.fct.2021.112074] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 01/28/2021] [Accepted: 02/14/2021] [Indexed: 02/06/2023]
Abstract
Circular RNAs (circRNAs) are a novel class of noncoding RNAs produced during pre-mRNA splicing and are emerging as new members of the gene regulatory network. Unlike linear RNAs, circRNAs have a unique structure with a covalently closed loop formed from the ligation of exons, introns, or both. CircRNAs are widely expressed in various organisms in a species-, tissue-, developmental stage- and disease-specific manner; circRNAs have been demonstrated to play a vital role in the pathogenesis and progression of human diseases. Fibrosis is characterized by an abnormal excessive deposition of extracellular matrix (ECM) in the extracellular space and plays important roles in many different pathologies of various organs. CircRNAs function as master regulators of gene expression to "sponge" or sequester other genes and target gene expression, transcription, splicing, etc. Increasing evidence has revealed that circRNAs are tightly associated with fibrotic diseases in various organs, including the lungs, liver, heart and kidneys. Herein, we provide the current understanding of the molecular characteristics of circRNAs and summarize the findings from circRNA studies in which the functions and mechanisms of action of circRNAs in organ fibrosis were proposed.
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Affiliation(s)
- Xiaoniu Dai
- Department of Physiology, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China; School of Medicine, Xizang Minzu University, Xianyang, Shanxi, 712082, China; Jiangsu Provincial Key Laboratory of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Yusi Cheng
- Department of Physiology, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Cuifen Wang
- Tissue Sciences Facility, University of Nebraska Medical Center, 985815 Nebraska Medical Center, Omaha, NE6B19B-5815, USA
| | - Jie Huang
- Department of Physiology, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Jie Chao
- Department of Physiology, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China; School of Medicine, Xizang Minzu University, Xianyang, Shanxi, 712082, China; Jiangsu Provincial Key Laboratory of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China.
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21
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Zhang Z, Shi Z, Zhang S, Lu Q, Wei H, Wu X, Han L. Upregulated hsa_circ_0000129 expression promotes proliferation and migration of breast cancer cells. Oncol Lett 2021; 21:239. [PMID: 33664803 PMCID: PMC7882879 DOI: 10.3892/ol.2021.12500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 10/20/2020] [Indexed: 12/22/2022] Open
Abstract
Circular RNAs (circRNAs) are considered potential biomarkers in the pathogenesis and detection of several types of cancer. The present study aimed to investigate the role of hsa_circ_0000129 in the pathogenesis and molecular mechanism underlying breast cancer. A total of 68 pairs of breast cancer and corresponding paracancerous tissue samples, three different breast cancer cell lines (MCF-7, MDA-MB-231 and MDA-MB-468) and a normal human breast cell line (MCF-10A) were used to investigate the expression of hsa_circ_0000129. The effect of hsa_circ_0000129 on cell proliferation, migration and colony formation was assessed in MCF-7 and MDA-MB-468 cells, along with the expression of enhancer of zeste homolog 2 (EZH2). The results demonstrated that hsa_circ_0000129 expression was significantly higher in breast cancer tissues compared with normal tissues. In addition, high hsa_circ_0000129 expression was significantly associated with lymph node metastasis and a higher tumor-node-metastasis stage. Comparisons between the breast cancer cell lines (MCF-7, MDA-MB-231 and MDA-MB-468) and MCF-10A cells indicated similar results. MCF-7 cells overexpressed with hsa_circ_0000129 significantly increased cell proliferation, migration and colony formation compared with the negative control group, the effects of which were reversed following hsa_circ_0000129 knockdown in MDA-MB-468 cells. Furthermore, EZH2 expression was positively associated with hsa_circ_0000129 expression. Taken together, the results of the present study suggest that hsa_circ_0000129 may represent a promising prognostic biomarker for breast cancer. In addition, the role of hsa_circ_0000129 in breast cancer cell lines indicates a mechanism for tumorigenesis, as well as a potent target for the treatment of malignant progression.
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Affiliation(s)
- Zhenghua Zhang
- Department of Oncology, Jing'an District Centre Hospital of Shanghai, Huashan Hospital, Fudan University, Jing'an Branch, Shanghai 200040, P.R. China
| | - Zhan Shi
- Department of Clinical Oncology, Huadong Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Su Zhang
- Department of Traditional Chinese Medicine Jing'an District Centre Hospital of Shanghai, Huashan Hospital, Fudan University, Jing'an Branch, Shanghai 200040, P.R. China
| | - Qiong Lu
- Department of Oncology, Jing'an District Centre Hospital of Shanghai, Huashan Hospital, Fudan University, Jing'an Branch, Shanghai 200040, P.R. China
| | - Haimin Wei
- Department of Oncology, Jing'an District Centre Hospital of Shanghai, Huashan Hospital, Fudan University, Jing'an Branch, Shanghai 200040, P.R. China
| | - Xueyong Wu
- Department of Oncology, Jing'an District Centre Hospital of Shanghai, Huashan Hospital, Fudan University, Jing'an Branch, Shanghai 200040, P.R. China
| | - Li Han
- Department of Traditional Chinese Medicine, Huadong Hospital, Fudan University, Shanghai 200040, P.R. China
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22
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Liu X, Gao L, Shi S, Yang Y. Clinical Significance of has_circ_0055625 in Colon Cancer Patients Undergoing FOLFOX Chemotherapy Treatment. Int J Gen Med 2021; 14:221-227. [PMID: 33519228 PMCID: PMC7837584 DOI: 10.2147/ijgm.s290440] [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: 11/04/2020] [Accepted: 12/23/2020] [Indexed: 12/17/2022] Open
Abstract
Objective Colon cancer is a leading global cancer-related cause of morbidity and mortality. The oxaliplatin, 5-fluorouracil (5-FU), and leucovorin (FOLFOX) regimen is a standard chemotherapeutic approach used to treat colon cancer. However, chemoresistant tumor cells typically lead to the emergence of recurrent FOLFOX-resistant tumors after initial treatment. As such, it is vital that novel approaches to identifying and eliminating such chemoresistant tumors be developed in an effort to improve patient chemotherapy outcomes. Materials and Methods In total, 100 samples of serum were obtained between April 2014 and April 2019 from patients who had been pathologically diagnosed with colon cancer from the Xiamen Haicang Hospital, and after these patients received FOLFOX chemotherapy treatment, serum samples were collected again. The expression of has_circ_0055625 in these serum samples was assessed via qPCR. Additionally, 5-FU IC50 values were detected via CCK-8 assay. Results We found has_circ_0055625 to be significantly upregulated in colon cancer patient serum. After FOLFOX treatment, chemotherapy-resistance was associated with the upregulation of has_circ_0055625. Conclusion In summary, these data may provide a foundation for future studies of chemotherapeutic resistance in patients undergoing FOLFOX treatment, potentially guiding treatment adjustment strategies. However, further work will be necessary to expand upon these findings.
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Affiliation(s)
- Xiuhua Liu
- Department of Pathology, Xiamen Haicang Hospital, Xiamen, Fujian, 361000, People's Republic of China
| | - Liang Gao
- Department of Pathology, Xiamen Haicang Hospital, Xiamen, Fujian, 361000, People's Republic of China
| | - Shaoxin Shi
- Department of Pathology, Xiamen Haicang Hospital, Xiamen, Fujian, 361000, People's Republic of China
| | - Yun Yang
- Department of Pathology, Xiamen Haicang Hospital, Xiamen, Fujian, 361000, People's Republic of China
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Weng H, Zeng L, Cao L, Chen T, Li Y, Xu Y, Peng Y, Ye Y. circFOXM1 contributes to sorafenib resistance of hepatocellular carcinoma cells by regulating MECP2 via miR-1324. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 23:811-820. [PMID: 33614231 PMCID: PMC7868711 DOI: 10.1016/j.omtn.2020.12.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/17/2020] [Indexed: 12/22/2022]
Abstract
As one of the most common malignant tumors, hepatocellular carcinoma (HCC) is a leading cause of cancer-related deaths around the world. Emerging studies have indicated that circular RNAs (circRNAs), which play a crucial role in HCC pathogenesis and metastasis, are differentially expressed in HCC. However, the regulatory mechanisms of circRNA on sorafenib resistance of HCC are still unknown. In our study, we identified a novel circRNA, circFOXM1, using RNA sequencing (RNA-seq) that was increased in sorafenib-resistant HCC tissues. Functionally, circFOXM1 significantly inhibited HCC growth and enhanced sorafenib toxicity in vitro. Mechanistically, circFOXM1 acted as a sponge of microRNA (miR)-1324, which is a negative regulator of MECP2, indicating that circFOXM1 downregulation would regulate sorafenib resistance of HCC via releasing more free miR-1324 and suppressing MECP2 expression. Furthermore, miR-1324 overexpression was capable of reversing the circFOXM1-induced malignant phenotypes and elevated expression of MECP2 in HCC cells. circFOXM1 partially contributed to sorafenib resistance of HCC cells through upregulating MECP2 expression by sponging miR-1324.
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Affiliation(s)
- Hanqin Weng
- Department of Hepato-Biliary Surgery, Dongguan People's Hospital, Southern Medical University, Dongguan 523000, China
| | - Lexiang Zeng
- Department of Traditional Chinese Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.,Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong Higher Education Institutes, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Linhui Cao
- Department of Gastroenterology, Dongguan People's Hospital, Southern Medical University, Dongguan 523000, China
| | - Tao Chen
- Department of Hepato-Biliary Surgery, Dongguan People's Hospital, Southern Medical University, Dongguan 523000, China
| | - Yanshan Li
- Department of Hepato-Biliary Surgery, Dongguan People's Hospital, Southern Medical University, Dongguan 523000, China
| | - Yunxiuxiu Xu
- Department of Oncology, Dongguan People's Hospital, Southern Medical University, Dongguan 523000, China
| | - Yaorong Peng
- Department of Hepato-Biliary Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.,Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangdong Higher Education Institutes, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Yibiao Ye
- Department of Hepato-Biliary Surgery, Dongguan People's Hospital, Southern Medical University, Dongguan 523000, China
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24
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Rong Z, Xu J, Shi S, Tan Z, Meng Q, Hua J, Liu J, Zhang B, Wang W, Yu X, Liang C. Circular RNA in pancreatic cancer: a novel avenue for the roles of diagnosis and treatment. Am J Cancer Res 2021; 11:2755-2769. [PMID: 33456571 PMCID: PMC7806488 DOI: 10.7150/thno.56174] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 12/12/2020] [Indexed: 12/13/2022] Open
Abstract
Pancreatic cancer (PC), an important cause of cancer-related deaths worldwide, is one of the most malignant cancers characterized by a dismal prognosis. Circular RNAs (circRNAs), a class of endogenous ncRNAs with unique covalently closed loops, have attracted great attention in regard to various diseases, especially cancers. Compelling studies have suggested that circRNAs are aberrantly expressed in different cancer tissues and cell types, including PC. More specifically, circRNAs can modify the proliferation, progression, tumorigenesis and chemosensitivity of PC, and some circRNAs could serve as biomarkers for diagnosis and prognosis. Herein, we summarize what is currently known to be related to the biogenesis, functions and potential roles of human circRNAs in PC and their application prospects for PC clinical treatments.
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25
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Shi Y, He R, Yang Y, He Y, Shao K, Zhan L, Wei B. Circular RNAs: Novel biomarkers for cervical, ovarian and endometrial cancer (Review). Oncol Rep 2020; 44:1787-1798. [PMID: 33000238 PMCID: PMC7551080 DOI: 10.3892/or.2020.7780] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 08/24/2020] [Indexed: 12/24/2022] Open
Abstract
Cervical, ovarian and endometrial cancer are the three most common types of malignant tumor and the leading causes of cancer‑associated death in women. Tumor debulking surgery followed by platinum and paclitaxel chemotherapy is the current treatment regime of choice. However, as a result of late diagnosis and chemoresistance, the survival rates of patients with advanced gynecological cancers remains unsatisfactory. Circular RNAs (circRNAs) are stable noncoding RNAs that are present in a wide variety of tissue and cell types. With the enhancement of RNA sequencing methods, increasing numbers of circRNAs have been identified, and their functions are gradually being revealed. In recent years, circRNAs have received increasing attention for their regulatory roles in cervical, ovarian and endometrial cancer. The aim of the present review was to summarize the possible mechanisms of recently identified circRNAs; we hypothesize that a novel diagnostic and therapeutic biomarker may be identified to prolong the survival time of patients with gynecological malignancies.
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Affiliation(s)
- Yuchuan Shi
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
| | - Runhua He
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
| | - Yu Yang
- Cardiology Department, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
| | - Yu He
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
| | - Kang Shao
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
| | - Lei Zhan
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
- Department of Obstetrics and Gynecology, Reproductive Medicine Center, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Bing Wei
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
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26
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Calanca N, Abildgaard C, Rainho CA, Rogatto SR. The Interplay between Long Noncoding RNAs and Proteins of the Epigenetic Machinery in Ovarian Cancer. Cancers (Basel) 2020; 12:E2701. [PMID: 32967233 PMCID: PMC7563210 DOI: 10.3390/cancers12092701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/09/2020] [Accepted: 09/16/2020] [Indexed: 12/19/2022] Open
Abstract
Comprehensive large-scale sequencing and bioinformatics analyses have uncovered a myriad of cancer-associated long noncoding RNAs (lncRNAs). Aberrant expression of lncRNAs is associated with epigenetic reprogramming during tumor development and progression, mainly due to their ability to interact with DNA, RNA, or proteins to regulate gene expression. LncRNAs participate in the control of gene expression patterns during development and cell differentiation and can be cell and cancer type specific. In this review, we described the potential of lncRNAs for clinical applications in ovarian cancer (OC). OC is a complex and heterogeneous disease characterized by relapse, chemoresistance, and high mortality rates. Despite advances in diagnosis and treatment, no significant improvements in long-term survival were observed in OC patients. A set of lncRNAs was associated with survival and response to therapy in this malignancy. We manually curated databases and used bioinformatics tools to identify lncRNAs implicated in the epigenetic regulation, along with examples of direct interactions between the lncRNAs and proteins of the epigenetic machinery in OC. The resources and mechanisms presented herein can improve the understanding of OC biology and provide the basis for further investigations regarding the selection of novel biomarkers and therapeutic targets.
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Affiliation(s)
- Naiade Calanca
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (N.C.); (C.A.R.)
| | - Cecilie Abildgaard
- Department of Oncology, University Hospital of Southern Denmark-Vejle, Institute of Regional Health Research, University of Southern Denmark, 5000 Odense, Denmark;
- Department of Clinical Genetics, University Hospital of Southern Denmark-Vejle, Institute of Regional Health Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Cláudia Aparecida Rainho
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil; (N.C.); (C.A.R.)
| | - Silvia Regina Rogatto
- Department of Clinical Genetics, University Hospital of Southern Denmark-Vejle, Institute of Regional Health Research, University of Southern Denmark, 5000 Odense, Denmark
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27
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Hu Y, Song Q, Zhao J, Ruan J, He F, Yang X, Yu X. Identification of plasma hsa_circ_0008673 expression as a potential biomarker and tumor regulator of breast cancer. J Clin Lab Anal 2020; 34:e23393. [PMID: 32808350 PMCID: PMC7521290 DOI: 10.1002/jcla.23393] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Cell-free circular RNAs (circRNAs) are stable and abundantly exist in body fluids. In this study, we aimed to investigate plasma cell-free circRNAs as a novel class of biomarkers for the diagnosis of breast cancer (BC). METHODS Differentially expressed circRNAs from 6 normal and 6 BC plasma samples were detected by microarray. Hsa_circ_0008673 was then screened and validated in the plasma of 102 normal and 378 BC samples. A receiver operating characteristic (ROC) curve was used to evaluate the diagnostic value. The correlations between hsa_circ_0008673 expression and demographic characteristics, tumor features, and prognosis were analyzed. The effects of hsa_circ_0008673 on BC cell proliferation and metastasis were also measured. RESULTS Of the top ten up-regulated (hsa_circ_0008673, hsa_circ_0008500, hsa_circ_0005260, hsa_circ_0003423, hsa_circ_0119881, hsa_circ_0000987, hsa_circ_0007386, hsa_circ_0000091, hsa_circ_0016601, and hsa_circ_0008549) and top ten down-regulated (hsa_circ_0000826, hsa_circ_0072697, hsa_circ_0004587, hsa_circ_0000471, hsa_circ_0007786, hsa_circ_0001417, hsa_circ_0005982, hsa_circ_0001566, hsa_circ_0003823, and hsa_circ_0003823) circRNAs from microarray, hsa_circ_0008673 was the most significantly up-regulated circRNA in BC, and represented a good diagnostic value. Hsa_circ_0008673 was remarkably down-regulated after breast mastectomy. Hsa_circ_0008673 expression was associated with larger tumor size, distant metastasis, positive estrogen receptor (ER) status, and positive progesterone receptor (PR) status. Additionally, hsa_circ_0008673 could serve as a prognostic predicator of overall survival (OS) and disease-specific survival (DSS). Cell assays proved that hsa_circ_0008673 knockdown contributed to inhibition of tumor cell proliferation and migration. CONCLUSION Plasma cell-free hsa_circ_0008673 was up-regulated in BC, which was associated with poorer prognosis and promoted tumor proliferation and metastasis. Hsa_circ_0008673 is a promising biomarker for tumor diagnosis and prognostic assessment of BC patients.
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Affiliation(s)
- Youting Hu
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Qi Song
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Jianguo Zhao
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Jian Ruan
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Fan He
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Xia Yang
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
| | - Xiaocheng Yu
- Department of Breast and Thyroid Surgery, Wuhan Integrated TCM & Western Medicine Hospital, Hubei, China
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28
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Cai XY, Shao L, Zhu HM, Zhan YL, Wang YX, Tu WL, Hong L, Wang S. WITHDRAWN: Circ_0001946 facilitates the proliferation and represses apoptosis of ox-LDL-stimulated Vascular Smooth Muscle Cells via regulating miR-641/CCND1 pathway. Gene 2020:144953. [PMID: 32683082 DOI: 10.1016/j.gene.2020.144953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/30/2020] [Accepted: 07/13/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Xin-Yong Cai
- Department of Cardiology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi, China
| | - Liang Shao
- Department of Cardiology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi, China
| | - Hong-Min Zhu
- Department of Cardiology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi, China
| | - Yu-Liang Zhan
- Department of Cardiology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi, China
| | - Yun-Xia Wang
- Department of Cardiology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi, China
| | - Wei-Ling Tu
- Department of Cardiology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi, China
| | - Lang Hong
- Department of Cardiology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi, China
| | - Shu Wang
- Department of Gerontology, The First Affiliated Hospital of Nanchang University, 17 Yongwai Street, Nanchang 330006, JiangXi, China.
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29
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Fang S, Pan J, Zhou C, Tian H, He J, Shen W, Jin X, Meng X, Jiang N, Gong Z. Circular RNAs Serve as Novel Biomarkers and Therapeutic Targets in Cancers. Curr Gene Ther 2020; 19:125-133. [PMID: 30411680 DOI: 10.2174/1566523218666181109142756] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/20/2018] [Accepted: 10/25/2018] [Indexed: 12/19/2022]
Abstract
Circular RNAs (circRNAs) are a class of non-coding RNAs (ncRNAs) that structurally form closed loops without 5'-end cap and 3'-end poly(A) tail unlike linear RNAs. CircRNAs are widely present in eukaryotic cells with the capabilities of structural stability, high abundance and cell- /tissue-specific expression. A growing body of researches suggest that the dysregulated circRNAs are intimately relevant to the occurrence and development of cancer. In this review, we mainly discuss the differentially expressed circRNAs in cancer tissues, plasma and exosomes, which makes it possible for clinicians to use certain circRNAs as novel biomarkers for cancer diagnosis and prognosis. In particular, we primarily focus on circRNAs as potential therapeutic targets, which will provide promising applications in cancer gene therapy.
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Affiliation(s)
- Shuai Fang
- Department of Biochemistry and Molecular Biology, Medical School of Ningbo University, Ningbo, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo
| | - Jinchang Pan
- Department of Biochemistry and Molecular Biology, Medical School of Ningbo University, Ningbo, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo
| | - Chengwei Zhou
- Department of Thoracic Surgery, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, China
| | - Hui Tian
- Department of Thoracic Surgery, The Affiliated Ningbo Medical Center Lihuili Eastern Hospital of Medical School of Ningbo University, Ningbo, China
| | - Jinxian He
- Department of Thoracic Surgery, The Affiliated Ningbo Medical Center Lihuili Eastern Hospital of Medical School of Ningbo University, Ningbo, China
| | - Weiyu Shen
- Department of Thoracic Surgery, The Affiliated Ningbo Medical Center Lihuili Eastern Hospital of Medical School of Ningbo University, Ningbo, China
| | - Xiaofeng Jin
- Department of Biochemistry and Molecular Biology, Medical School of Ningbo University, Ningbo, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo
| | - Xiaodan Meng
- Department of Biochemistry and Molecular Biology, Medical School of Ningbo University, Ningbo, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo
| | - Nan Jiang
- Department of Biochemistry and Molecular Biology, Medical School of Ningbo University, Ningbo, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo
| | - Zhaohui Gong
- Department of Biochemistry and Molecular Biology, Medical School of Ningbo University, Ningbo, China.,Zhejiang Provincial Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo
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30
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Shi P, Ji H, Zhang H, Yang J, Guo R, Wang J. circANRIL reduces vascular endothelial injury, oxidative stress and inflammation in rats with coronary atherosclerosis. Exp Ther Med 2020; 20:2245-2251. [PMID: 32765701 PMCID: PMC7401493 DOI: 10.3892/etm.2020.8956] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 06/05/2020] [Indexed: 12/17/2022] Open
Abstract
Effects of circular antisense non-coding RNA in the INK4 locus (circANRIL) on vascular endothelial injury, oxidative stress and inflammation in rats with coronary atherosclerosis were studied by establishing a rat model of coronary atherosclerosis in which circANRIL was differentially expressed. A total of 40 healthy Sprague Dawley (SD) rats were randomly divided into research group (n=32) and control group (n=8). In research group, a rat model of coronary atherosclerosis was established without special treatment. The blood calcium (Ca2+) and lipid levels in the two groups were compared. After cell transfection, the rats were divided into blank group (untransfected), negative group (transfected with blank vector), circANRIL group (transfected with circANRIL overexpression plasmid) and circANRIL inhibitor group (transfected with circANRIL silencer). Then the levels of lactate dehydrogenase (LDH), superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in each group were compared. Western blotting was adopted to detect the expressions of phosphorylated p38 mitogen-activated protein kinase (p-p38MAPK), p38MAPK and glyceraldehyde 3-phosphate dehydrogenase (GAPDH). Finally, p-p38MAPK/GAPDH, p38MAPK/GAPDH and p-p38MAPK/p38MAPK were calculated. There were significant differences in the levels of serum Ca2+ and lipid between control group and research group (P<0.05). Besides, differences in LDH, SOD, MDA, TNF-α and IL-6 in the supernatant in each group were statistically significant (P<0.05 or P<0.01). Moreover, there were statistically significant differences in the gray values of p-p38MAPK/GAPDH and p38MAPK/GAPDH and their ratio p-p38MAPK/p38MAPK in each group (P<0.05 or P<0.01). Inhibiting the expression of circANRIL in coronary heart disease cases can reduce vascular endothelial injury, oxidative stress and inflammation.
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Affiliation(s)
- Peixia Shi
- No. 1 Department of Cardiology, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Hongling Ji
- Disinfection Supply Center and Hospital-Acquired Infection Control Department, Jinan Zhangqiu District Hospital of Traditional Chinese Medicine, Jinan, Shandong 250200, P.R. China
| | - Huajuan Zhang
- Hospital-Acquired Infection Control Department, Jinan Zhangqiu District Hospital of Traditional Chinese Medicine, Jinan, Shandong 250200, P.R. China
| | - Jian Yang
- Department of Clinical Laboratory, Τhe People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Rui Guo
- Department of Outpatients, Τhe People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Jianwei Wang
- ECG Room, W.F. Maternal and Child Health Hospital, Weicheng, Weifang 261000, P.R. China
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31
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Zhang JR, Sun HJ. LncRNAs and circular RNAs as endothelial cell messengers in hypertension: mechanism insights and therapeutic potential. Mol Biol Rep 2020; 47:5535-5547. [PMID: 32567025 DOI: 10.1007/s11033-020-05601-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/17/2020] [Indexed: 12/11/2022]
Abstract
Endothelial cells are major constituents in the vasculature, and they act as important players in vascular homeostasis via secretion/release of vasodilators and vasoconstrictors. In healthy arteries, endothelial cells play a key role in the regulation of vascular tone, cellular adhesion, and angiogenesis. A shift in the functions of the blood vessels toward vasoconstriction, proinflammatory state, oxidative stress and deficiency of nitric oxide (NO) might lead to endothelial dysfunction, a key event implicated in the pathophysiology of cardiovascular metabolic diseases, including diabetes, atherosclerosis, arterial hypertension and pulmonary arterial hypertension (PAH). Thus, reversibility of endothelial dysfunction may be beneficial for maintaining vascular homeostasis. In recent years, accumulative evidence has documented that noncoding RNAs (ncRNAs) are critically involved in endothelial homeostasis. Specifically, long noncoding RNAs (lncRNAs) and circular RNAs are highly expressed in endothelial cells where they serve as important mediators in normal endothelial functions. Dysregulation of lncRNAs and circular RNAs has been tightly associated with hypertension-related endothelial dysfunction. In this review, we will summarize the current progression and underlying mechanisms of lncRNA and circular RNA in endothelial cell biology under hypertensive conditions. We will also highlight their potential as biomarkers or therapeutic targets for hypertension and its associated endothelial dysfunction.
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Affiliation(s)
- Ji-Ru Zhang
- Department of Anesthesiology, Affiliated Hospital of Jiangnan University, Wuxi, 214062, People's Republic of China
| | - Hai-Jian Sun
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, People's Republic of China. .,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.
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32
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Hallajzadeh J, Amirani E, Mirzaei H, Shafabakhsh R, Mirhashemi SM, Sharifi M, Yousefi B, Mansournia MA, Asemi Z. Circular RNAs: new genetic tools in melanoma. Biomark Med 2020; 14:563-571. [PMID: 32462914 DOI: 10.2217/bmm-2019-0567] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Melanoma is the most lethal form of skin cancer. New technologies have resulted in major advances in the diagnosis and treatment of melanoma and other cancer types. Recently, some studies have investigated the role of circular RNAs (circRNAs) in different cancers. CircRNAs are a member of long noncoding RNA family mainly formed through back-splicing and have a closed-loop structure. These molecules affect several biological and oncogenic cascades in diverse ways via acting as microRNA sponge, interacting with RNA-binding proteins and acting as a transcription regulator. In this review, we made an insight into the impact of circRNA dysregulation in the melanoma tumorigenesis based on the presented evidences.
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Affiliation(s)
- Jamal Hallajzadeh
- Department of Biochemistry & Nutrition, Research Center for Evidence-Based Health Management, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Elaheh Amirani
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Rana Shafabakhsh
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyyed M Mirhashemi
- Metabolic Diseases Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mehran Sharifi
- Department of Hematology & Oncology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Bahman Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad A Mansournia
- Department of Epidemiology & Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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33
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Zhou DN, Ye CS, Deng YF. CircRNAs: potency of protein translation and feasibility of novel biomarkers and therapeutic targets for head and neck cancers. Am J Transl Res 2020; 12:1535-1552. [PMID: 32509160 PMCID: PMC7270011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 04/18/2020] [Indexed: 06/11/2023]
Abstract
Circular RNAs (circRNAs), a new star noncoding RNA (ncRNA), show stability, conservation, abundance, and tissue and stage specificity. They act as key regulators of biological processes. They target the mRNAs of many other different genes or signaling pathways, and closely link associated genes into regulatory networks. Growing evidence has demonstrated that circRNAs may play an important role in the carcinogenesis, progression and chemoradiation resistance of many cancers including head and neck cancers (HNC). CircRNA, like other ncRNA, such as miRNA, lncRNA, usually is considered to be non-protein coding transcript. However, recent studies indicated that abnormal translation of circRNAs may be involved in human diseases. In this review, we collected the origin, classification, characteristics, function of circRNAs, exosmal circRNAs, and then synthesize current study results to highlight aberration of circRNAs in various types of HNC, and try to clarify the molecular mechanisms of circRNAs affecting the pathogenesis and progression of HNC, as well as pay particular attention to provide a new avenue to the diagnosis and treatment strategy for HNC.
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Affiliation(s)
- Dong-Ni Zhou
- Department of Pathology, Zhongshan Hospital, Xiamen University209 Hubin South Road, Xiamen 361004, Fujian, China
| | - Chun-Sheng Ye
- Department of Otolaryngology-Head and Neck Surgery, Zhongshan Hospital, Xiamen University209 Hubin South Road, Xiamen 361004, Fujian, China
| | - Yan-Fei Deng
- Department of Otolaryngology-Head and Neck Surgery, Zhongshan Hospital, Xiamen University209 Hubin South Road, Xiamen 361004, Fujian, China
- Union School of Clinical Medicine, Fujian Medical UniversityFuzhou 350001, Fujian, China
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34
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Li YF, Pei FL, Cao MZ. CircRNA_101951 promotes migration and invasion of colorectal cancer cells by regulating the KIF3A-mediated EMT pathway. Exp Ther Med 2020; 19:3355-3361. [PMID: 32266033 PMCID: PMC7132243 DOI: 10.3892/etm.2020.8600] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/18/2020] [Indexed: 12/17/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most lethal tumor types worldwide. Circular RNAs (circRNAs), which are covalent closed loops of RNA, perform vital roles for the proliferation and metastasis of a variety of tumor types. In the present study, the expression, function and molecular mechanisms of action of a novel circRNA, circRNA_101951, were examined in CRC. The expression levels of circRNA_101951 in CRC tissue and cell lines were examined using reverse transcription-quantitative (RT-qPCR). Cell proliferation, the clone formation ability, cell apoptosis, the cell cycle and the cell migratory and invasive abilities were examined using MTT assays, colony formation assays, flow cytometric assays, and cell migration and invasion assays, respectively. The effects of circRNA_101951 on Kinesin II family member 3A (KIF3A) related gene expression were examined using RT-qPCR and western blot assays. The results indicated that circRNA_101951 was increased in CRC tissues and cell lines. The downregulation of circRNA_101951 inhibited cell proliferation and colony formation as well as cell migration and invasion of CRC cell lines. In addition, the downregulation of circRNA_101951 blocked the KIF3A-mediated epithelial-mesenchymal transition (EMT) pathway, which was detected by examining the expression levels of KIF3A and EMT related proteins. In conclusion, the current data revealed that circRNA_101951 may act as a potential biomarker for patients with CRC, and provided a novel insight demonstrating that the suppression of circRNA_101951 may be a potential therapeutic strategy for CRC.
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Affiliation(s)
- Yue-Feng Li
- Department of Oncology, Linyi Central Hospital, Linyi, Shandong 276400, P.R. China
| | - Fu-Lai Pei
- Department of Oncology, Linyi Central Hospital, Linyi, Shandong 276400, P.R. China
| | - Ming-Zheng Cao
- Department of General Surgery, Linyi Central Hospital, Linyi, Shandong 276400, P.R. China
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Tornesello ML, Faraonio R, Buonaguro L, Annunziata C, Starita N, Cerasuolo A, Pezzuto F, Tornesello AL, Buonaguro FM. The Role of microRNAs, Long Non-coding RNAs, and Circular RNAs in Cervical Cancer. Front Oncol 2020; 10:150. [PMID: 32154165 PMCID: PMC7044410 DOI: 10.3389/fonc.2020.00150] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/28/2020] [Indexed: 12/24/2022] Open
Abstract
Prolonged infection of uterine cervix epithelium with human papillomavirus (HPV) and constitutive expression of viral oncogenes have been recognized as the main cause of the complex molecular changes leading to transformation of cervical epithelial cells. Deregulated expression of microRNAs (miRNA), long non-coding RNAs (lncRNA), and circular RNAs (circRNA) is involved in the initiation and promotion processes of cervical cancer development. Expression profiling of small RNAs in cervical neoplasia revealed up-regulated “oncogenic” miRNAs, such as miR-10a, miR-21, miR-19, and miR-146a, and down regulated “tumor suppressive” miRNAs, including miR-29a, miR-372, miR-214, and miR-218, associated with cell growth, malignant transformation, cell migration, and invasion. Also several lncRNAs, comprising among others HOTAIR, MALAT1, GAS5, and MEG3, have shown to be associated with various pathogenic processes such as tumor progression, invasion as well as therapeutic resistance and emerged as new diagnostic and prognostic biomarkers in cervical cancer. Moreover, human genes encoded circular RNAs, such as has_circ-0018289, have shown to sponge specific miRNAs and to concur to the deregulation of target genes. Viral encoded circE7 has also demonstrated to overexpress E7 oncoprotein thus contributing to cell transformation. In this review, we summarize current literature on the complex interplay between miRNAs, lncRNAs, and circRNAs and their role in cervical neoplasia.
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Affiliation(s)
- Maria Lina Tornesello
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Raffaella Faraonio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Luigi Buonaguro
- Cancer Immunoregulation Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Clorinda Annunziata
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Noemy Starita
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Andrea Cerasuolo
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Francesca Pezzuto
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Anna Lucia Tornesello
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
| | - Franco Maria Buonaguro
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Naples, Italy
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Zhao W, Wang S, Qin T, Wang W. Circular RNA (circ-0075804) promotes the proliferation of retinoblastoma via combining heterogeneous nuclear ribonucleoprotein K (HNRNPK) to improve the stability of E2F transcription factor 3 E2F3. J Cell Biochem 2020; 121:3516-3525. [PMID: 32065448 DOI: 10.1002/jcb.29631] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 12/19/2019] [Indexed: 12/14/2022]
Abstract
It is growingly recognized that messenger RNAs (mRNAs) are important regulators of various cancers. However, there are few reporters about the function of E2F3 in retinoblastoma (RB), which needs more exploration. In addition, the circRNA circ-0075804 was derived from the E2F3 host gene. The purpose of the study is to figure out the role and molecular regulation mechanism of E2F3 and circ-0075804 in RB. The role of E2F3 in RB was determined through E2F3 silencing and loss of expression was evaluated by real-time quantitative polymerase chain reaction (RT-qPCR), Western blot, CCK-8, colony formation, and 5-ethynyl-2'-deoxyuridine assays. The interactions between E2F3 and circ-0075804 were validated through loss and gain function of circ-0075804. Besides, the role of circ-0075804 in RB was determined by several functional assays. And the binding ability between heterogeneous nuclear ribonucleoprotein K and circ-0075804 was verified by RNA pull-down, Western blot, and RT-qPCR assays. The expression of E2F3 was upregulated in RB cell lines. Furthermore, knockdown of E2F3 inhibited cell proliferation and induced cell apoptosis in RB. And circ-0075804 positively regulated the expression of E2F3. Moreover, circ-0075804 facilitated cell proliferation and suppressed cell apoptosis. Besides, HNRNPK could bind with circ-0075804 in RB. Finally, knockdown of E2F3 partly rescued the promoting role of circ-0075804 overexpression in RB. Overall, circ-0075804 promotes the proliferation of RB via combining HNRNPK to improve the stability of E2F3, which brings new light for treating RB.
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Affiliation(s)
- Wenbo Zhao
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Shuai Wang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Tingyu Qin
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wenzhan Wang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Ruan Y, Li Z, Shen Y, Li T, Zhang H, Guo J. Functions of circular RNAs and their potential applications in gastric cancer. Expert Rev Gastroenterol Hepatol 2020; 14:85-92. [PMID: 31922886 DOI: 10.1080/17474124.2020.1715211] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Introduction: In recent years, circular RNAs (circRNAs) have emerged in the field of RNA research and their biological functions are now being gradually identified. circRNAs are divided into three categories: exonic circular RNAs (ecircRNAs), exon-intron circular RNAs (EIciRNAs), and intronic circular RNAs (ciRNAs). The circular structure of circRNAs confers unique biological characteristics upon them, such as enhanced stability over linear RNAs.Areas covered: circRNAs function to competitively bind with microRNAs (miRNAs) and proteins, participate in protein coding, regulate transcription, and form pseudogenes after reverse transcription. In gastric cancer, the circRNA-miRNA-mRNA axis is the most studied mechanisms underlying gastric cancer occurrence and development. Some specific and sensitive circRNAs, such as hsa_circ_102958, hsa_circ_0000520, and hsa_circ_0001017 may have potential diagnostic potential in early-stage gastric cancer. Abnormal expression of some circRNAs, including circ-LMTK2, circ-PSMC3, and circ-DLST are associated with the development of gastric cancer. Other circRNAs, such as hsa_circ_0001368, circ-ZFR, and circ-ERBB2, may also play important roles in gastric cancer treatment.Expert opinion: Exploring the roles of circRNAs in gastric cancer occurrence and development will help us to elucidate the functions of circRNAs and develop potential tools for early diagnosis and effective treatment of gastric cancer.
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Affiliation(s)
- Yao Ruan
- Department of Biochemistry and Molecular Biology, And Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Zhe Li
- Department of Biochemistry and Molecular Biology, And Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Yijing Shen
- Department of Biochemistry and Molecular Biology, And Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Tianwen Li
- Department of Biochemistry and Molecular Biology, And Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Haiyan Zhang
- Department of Biochemistry and Molecular Biology, And Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
| | - Junming Guo
- Department of Biochemistry and Molecular Biology, And Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China
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Perera BP, Faulk C, Svoboda LK, Goodrich JM, Dolinoy DC. The role of environmental exposures and the epigenome in health and disease. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2020; 61:176-192. [PMID: 31177562 PMCID: PMC7252203 DOI: 10.1002/em.22311] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/29/2019] [Accepted: 06/03/2019] [Indexed: 05/02/2023]
Abstract
The genetic material of every organism exists within the context of regulatory networks that govern gene expression, collectively called the epigenome. Epigenetics has taken center stage in the study of diseases such as cancer and diabetes, but its integration into the field of environmental health is still emerging. As the Environmental Mutagenesis and Genomics Society (EMGS) celebrates its 50th Anniversary this year, we have come together to review and summarize the seminal advances in the field of environmental epigenomics. Specifically, we focus on the role epigenetics may play in multigenerational and transgenerational transmission of environmentally induced health effects. We also summarize state of the art techniques for evaluating the epigenome, environmental epigenetic analysis, and the emerging field of epigenome editing. Finally, we evaluate transposon epigenetics as they relate to environmental exposures and explore the role of noncoding RNA as biomarkers of environmental exposures. Although the field has advanced over the past several decades, including being recognized by EMGS with its own Special Interest Group, recently renamed Epigenomics, we are excited about the opportunities for environmental epigenetic science in the next 50 years. Environ. Mol. Mutagen. 61:176-192, 2020. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Bambarendage P.U. Perera
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan
| | - Christopher Faulk
- Department of Animal Sciences, University of Minnesota, St. Paul, Minnesota
| | - Laurie K. Svoboda
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan
| | - Jaclyn M. Goodrich
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan
| | - Dana C. Dolinoy
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan
- Correspondence to: Dana C. Dolinoy, Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan.
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CircACAP2 promotes breast cancer proliferation and metastasis by targeting miR-29a/b-3p-COL5A1 axis. Life Sci 2019; 244:117179. [PMID: 31863774 DOI: 10.1016/j.lfs.2019.117179] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/22/2019] [Accepted: 12/14/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Breast cancer is the most common cancer occurred in female around the world. The occurrence percentage of breast cancer among female who was over 50 years old is >80%. These factors may induce the chance of morbidity, including heavy drinking for a long term, smoking and postmenopausal obesity. Treatment of adjuvant chemotherapeutic and hormonal agents is mostly applied nowadays, which does contribute to the improvement of breast cancer, yet it is still an intractable disease for the side effects it brings. Emerging evidence has proved circular RNAs are involved in gene expression and modulation of biological behaviors. However, the mechanism and functions of circRNA ACAP2 (circACAP2) with respect to breast cancer remain unexplored. METHODS qRT-PCR analysis was used to detect relevant expression. Bioinformatics analysis was applied to seek miRNAs which might have binding sites with circACAP2 and miR-29a/b-3p. Functional experiments including CCK-8, colony formation assay and flow cytometry assay detected gene function role in breast cancer cells. RIP, RNA pull down and Luciferase reporter assays were carried out to verify binding sites among circACAP2, miR-29a/b-3p and COL5A1. RESULTS CircACAP2 expression was prominently elevated in tumorous tissues. Functionally and mechanistically, circACAP2 promoted breast cancer proliferation and motility by sponging miR-29a/b-3p and modulating COL5A1. CONCLUSION Elevated expression of circACAP2 in breast cancer tissues leads to malignant phenotype upon cancerous cells. CircACAP2-miR-29a/b-3p-COL5A1 axis leads to breast cancer tumorigenesis and could hopefully be a novel method for diagnosis and treatment for breast cancer.
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40
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Li T, Sun X, Chen L. Exosome circ_0044516 promotes prostate cancer cell proliferation and metastasis as a potential biomarker. J Cell Biochem 2019; 121:2118-2126. [PMID: 31625175 DOI: 10.1002/jcb.28239] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 11/15/2018] [Indexed: 12/15/2022]
Abstract
Circular RNAs (circRNAs) are important regulators in cancer growth and progression. Exosomes carry various molecules including RNA, protein, and lipid from one cell to another cell. But the role of circRNAs from the exosomes from prostate cancer patients are not elucidated. In this study, circ_0044516 was found upregulated in prostate cancer and the roles and molecular mechanism of Hsa_circ_0044516 (circ_0044516) was investigated. Firstly, the exosomes of prostate cancer patients were collected for human circRNAs microarray to screen the circRNA expression profile. There were 35 significantly expressed circRNAs with more than fivefolds from microarray analysis. Circ_0044516 was verified to be significantly upregulated in the exosomes from prostate cancer patients and the cell lines. Further investigation demonstrated that circ_0044516 downregulation inhibited the proliferation and metastasis of prostate cancer cells. By bioinformatics and luciferase reporter assays, circ_0044516 was verified to downregulate miR-29a-3p expression and negatively related to miR-29a-3p expression levels in prostate cancer. In a summary, the study indicated that circ_0044516 played an important role in prostate cancer cell survival and metastasis, which suggested that an oncogenic role of circ_0044516 in prostate cancer.
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Affiliation(s)
- Tian Li
- Department of Urology, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Minimally Invasive Technique and Product Translational Center, Guangzhou Medical University, Guangzhou, China
| | - Xiangzhou Sun
- Department of Urology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Liheng Chen
- Department of Biomedical Engineering, Jinan University, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangzhou, China
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41
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Yang X, Li J, Wu Y, Ni B, Zhang B. Aberrant dysregulated circular RNAs in the peripheral blood mononuclear cells of patients with rheumatoid arthritis revealed by RNA sequencing: novel diagnostic markers for RA. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 79:551-559. [PMID: 31596149 DOI: 10.1080/00365513.2019.1674004] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Circular RNAs (circRNAs) represent a newly identified class of non-coding RNAs that have been shown to be involved in several diseases, including autoimmune diseases. Two studies have revealed the aberrant circRNA expression profiles in the peripheral blood mononuclear cells (PBMCs) of patients with rheumatoid arthritis (RA) by microarrays. However, due to the intrinsic defects of microarrays, such as their inability to detect unidentified circRNAs, we examined the circRNA expression profiles in the PBMCs from four RA patients and three healthy controls by RNA sequencing (RNA-seq) and further explored the value of circRNAs in diagnosing RA. The results showed 71 markedly dysregulated circRNAs, including 41 upregulated and 30 downregulated circRNAs; these data included several previously unidentified candidate circRNAs. Gene Ontology and pathway annotation revealed that the most altered pathways and genes were associated with inflammation and transcriptional activity, such as the TNF pathway. The selected dysregulated circRNAs were verified by qRT-PCR in the PBMCs of 32 RA patients and 20 healthy controls, and the results indicated that hsa_circ_0000396 and hsa_circ_0130438 were downregulated in the RA group versus the healthy group, consistent with the RNA-seq data. The area under the receiver operating characteristic curve indicated the diagnostic value of both circRNAs for RA. Our results identified aberrant dysregulated circRNAs in RA patients, including several identified circRNAs, and the diagnostic value of circRNAs for RA, suggesting the superiority of RNA-seq versus microarrays for screening differentially expressed circRNAs and further strengthening the potential diagnostic value of circRNAs for the diagnosis of RA.
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Affiliation(s)
- Xuan Yang
- Department of Immunology, Medical College of Qingdao University, Qingdao, China.,Department of Pathophysiology, College of High Altitude Military Medicine, Third Military Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Jingyi Li
- Department of Rheumatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Yuzhang Wu
- Institute of Immunology, PLA, Third Military Medical University, Chongqing, China
| | - Bing Ni
- Department of Pathophysiology, College of High Altitude Military Medicine, Third Military Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Bei Zhang
- Department of Immunology, Medical College of Qingdao University, Qingdao, China
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Jin C, Shi L, Li Z, Liu W, Zhao B, Qiu Y, Zhao Y, Li K, Li Y, Zhu Q. Circ_0039569 promotes renal cell carcinoma growth and metastasis by regulating miR-34a-5p/CCL22. Am J Transl Res 2019; 11:4935-4945. [PMID: 31497210 PMCID: PMC6731413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 03/12/2019] [Indexed: 06/10/2023]
Abstract
Circular RNAs (circRNAs) belong to non-coding RNAs and are known as key regulators in gene regulation. CircRNAs involve in the various biological processes of cancer. However, the functions of circRNAs in renal cell carcinoma (RCC) are still not clear. In this study, the circRNA expression profile was performed in the RCC tissues by microarray. There were 35 significantly expressed circRNAs with more than 5 folds from microarray analysis. Hsa_circ_0039569 (circ_0039569) was verified to be up-regulated in RCC and cells compared with the controls by real time RT-PCR. The assays of cellular functions showed that circ_0039569 down-regulation suppressed the proliferation and metastasis of RCC cells. The molecular mechanism of circ_0039569 in RCC cells showed that circ_0039569 promoted RCC progression by up-regulating CCL22 expression via down-regulating miR-34a-5p. Taken together, the study indicated that circ_0039569 played an important role in RCC cell survival and metastasis, which suggested that an oncogenic role of circ_0039569 in RCC progression.
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Affiliation(s)
- Chengluo Jin
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
| | - Linmei Shi
- College of Public Health, Harbin Medical UniversityHarbin, China
| | - Zhexun Li
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
| | - Wei Liu
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
| | - Bai Zhao
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
| | - Yu Qiu
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
| | - Yakun Zhao
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
| | - Kunlun Li
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
| | - Yifei Li
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
| | - Qingguo Zhu
- Department of Urology, The Second Affiliate Hospital, Harbin Medical UniversityHarbin, China
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43
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Tang KL, Tang HY, Du Y, Tian T, Xiong SJ. MiR-638 suppresses the progression of oral squamous cell carcinoma through wnt/β-catenin pathway by targeting phospholipase D1. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:3278-3285. [PMID: 31379206 DOI: 10.1080/21691401.2019.1647222] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Kai-Liang Tang
- Department of VIP Center and Shandong Provincial Key Laboratory of Oral Biomedicine, School and Hospital of Stomatology, Shandong University, Jinan, Shandong, China
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, Shandong, China
| | - Han-Ying Tang
- Department of Oral prosthology, Jinan Stomatological Hospital, Jinan, Shandong, China
| | - Yi- Du
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, Shandong, China
| | - Tian Tian
- Department of Stomatology, Affiliated Hospital of Binzhou Medical College, Binzhou, Shandong, China
| | - Shi-Jiang Xiong
- Department of VIP Center and Shandong Provincial Key Laboratory of Oral Biomedicine, School and Hospital of Stomatology, Shandong University, Jinan, Shandong, China
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44
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Huang C, Wang L, Song H, Wu C. MiR-29a inhibits the progression of oral squamous cell carcinoma by targeting Wnt/β-catenin signalling pathway. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:3037-3042. [PMID: 31342798 DOI: 10.1080/21691401.2019.1576712] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chao Huang
- Department of Stomatology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Lili Wang
- Department of Prosthodontics, Tianjin Stomatological Hospital, Tianjin, China
| | - Hongguang Song
- Department of Stomatology, Beijing DCN Orthopaedic Hospital, Beijing, China
| | - Cungang Wu
- Department of Ultrasonography, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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45
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Chaichian S, Shafabakhsh R, Mirhashemi SM, Moazzami B, Asemi Z. Circular RNAs: A novel biomarker for cervical cancer. J Cell Physiol 2019; 235:718-724. [PMID: 31240697 DOI: 10.1002/jcp.29009] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/06/2019] [Accepted: 06/10/2019] [Indexed: 12/24/2022]
Abstract
Besides messenger RNAs, recent RNA-Seq and biochemical analysis showed another type of RNAs as a product of splicing which is named circular RNA (circRNA). Evidence demonstrated that circRNAs are abundant in the cells and are able to show cell/tissue-specific expression or tissue developmental stage which suggest that circRNAs may have regulatory potentials. In recent years, researchers have focused attention on circRNAs because of their key functions in various cellular mechanisms. CircRNAs also have the potential to be as promising biomarkers for diagnosis of various diseases such as cancer. Growing up evidence has shown the various roles of circRNAs in multiple cancers. In recent years, cervical cancer as one of the main causes of cancer death in women has been interesting for molecular research. CircRNAs are one of the novel objects which have recently been evaluated in this cancer. The improvement in our knowledge of the roles of circRNAs in cervical cancer may lead to new transcription therapeutic approaches to cervical cancer inhibition. Therefore, the purpose of this review is to review many studies which examined the role of circRNAs in cervical cancer carcinogenesis and progression up till date and to summarize possible mechanisms of action of circRNAs in cervical neoplasm.
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Affiliation(s)
- Shala Chaichian
- Minimally Invasive Techniques Research Center in Women, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran.,Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Rana Shafabakhsh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Bahram Moazzami
- Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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46
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Jin J, Chen A, Qiu W, Chen Y, Li Q, Zhou X, Jin D. Dysregulated circRNA_100876 suppresses proliferation of osteosarcoma cancer cells by targeting microRNA‐136. J Cell Biochem 2019; 120:15678-15687. [PMID: 31069828 DOI: 10.1002/jcb.28837] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/19/2019] [Accepted: 01/24/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Jian Jin
- Department of Spine Surgery Nanfang Hospital, Southern Medical University Guangzhou China
| | - Ajuan Chen
- Department of Spine Surgery The Third Affiliated Hospital, Southern Medical University Guangzhou China
| | - Weizheng Qiu
- Department of Spine Surgery The Third Affiliated Hospital, Southern Medical University Guangzhou China
| | - Yilin Chen
- Department of Spine Surgery Nanfang Hospital, Southern Medical University Guangzhou China
| | - Qingchu Li
- Department of Spine Surgery The Third Affiliated Hospital, Southern Medical University Guangzhou China
| | - Xinying Zhou
- Department of Spine Surgery The Third Affiliated Hospital, Southern Medical University Guangzhou China
| | - Dadi Jin
- Department of Spine Surgery The Third Affiliated Hospital, Southern Medical University Guangzhou China
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Liu LH, Tian QQ, Liu J, Zhou Y, Yong H. Upregulation of hsa_circ_0136666 contributes to breast cancer progression by sponging miR-1299 and targeting CDK6. J Cell Biochem 2019; 120:12684-12693. [PMID: 30993801 DOI: 10.1002/jcb.28536] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/10/2019] [Accepted: 01/14/2019] [Indexed: 01/03/2023]
Abstract
Circular RNAs (circRNAs) can participate in multiple cancers, including breast cancer. Increasing circRNAs are recognized in various cancers because of the high-throughput sequencing. However, the potential physiological effect of hsa_circ_0136666 in breast cancer progression is unknown. In our study, the biological role of hsa_circ_0136666 in breast cancer development was studied. It was displayed that hsa_circ_0136666 was greatly increased in breast cancer. In addition, overexpression of hsa_circ_0136666 was able to promote Michigan Cancer Foundation-7 (MCF7) and BT474 cell proliferation and triggered cell cycle in G2/M phase. microRNA plays critical role in tumor development and they can act as direct targets of circRNAs. miR-1299 has been implicated as a famous tumor suppressor in many cancers. Here, miR-1299 was predicted as the target of hsa_circ_0136666. Meanwhile, its Upregulation repressed breast cancer proliferation, migration and invasion capacity, which could be reversed by the increase of hsa_circ_0136666. Furthermore, Cyclin-dependent kinase 6 (CDK6) was speculated as the downstream target of miR-1299. In MCF7 and BT474 cells, CDK6 was greatly overexpressed and it was shown that CDK6 contributed a lot to breast cancer progression. Subsequently, it was implied that hsa_circ_0136666 could modulate CDK6 levels positively in vitro. In conclusion, it was revealed that Upregulation of hsa_circ_0136666 promoted breast cancer progression by sponging miR-1299 and targeting CDK6.
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Affiliation(s)
- Li-Hong Liu
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing-Qing Tian
- Department of Pathology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juan Liu
- Huai'an Second People's Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
| | - Yong Zhou
- Department of Breast Surgery, The Central Hospital of Enshi Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi, Hubei, China
| | - Hongmei Yong
- Department of Oncology, Huai'an Second People's Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University, 62 South Huaihai Rode, Huai'an, China
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Braicu C, Zimta AA, Gulei D, Olariu A, Berindan-Neagoe I. Comprehensive analysis of circular RNAs in pathological states: biogenesis, cellular regulation, and therapeutic relevance. Cell Mol Life Sci 2019; 76:1559-1577. [PMID: 30805658 PMCID: PMC11105679 DOI: 10.1007/s00018-019-03016-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 11/14/2018] [Accepted: 01/15/2019] [Indexed: 02/06/2023]
Abstract
Circular RNAs (circRNAs) are members of the non-coding transcriptome; however, some of them are translated into proteins. These transcripts have important roles in both physiological and pathological mechanisms due to their ability to directly influence cellular signaling pathways. Specifically, circRNAs are regulators of transcription, translation, protein interaction, and signal transduction. An increased knowledge within their area is observed over the last few years, concomitant with the development of next-generation sequencing techniques. circRNAs are mostly tissue and disease specific with the ability of specifically changing the biological behavior of cells. The altered expression profile is currently investigated as novel minimally invasive diagnosis/prognosis tool and also therapeutic target in human disease. The diagnosis approach is based on their level modification within pathological states, especially cancer, where circRNAs' therapies are intensively explored in anti-aging strategies, diabetes, cardiovascular diseases, and malignant pathologies, and are relying on the restoration of homeostatic profiles.
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Affiliation(s)
- Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, 23 Marinescu Street, 400337, Cluj-Napoca, Romania.
| | - Andreea-Alina Zimta
- MEDFUTURE-Research Center for Advanced Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, 23 Marinescu Street, 400337, Cluj-Napoca, Romania
| | - Diana Gulei
- MEDFUTURE-Research Center for Advanced Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, 23 Marinescu Street, 400337, Cluj-Napoca, Romania
| | - Andrei Olariu
- Nordlogic Software, 10-12, Rene Descartes Street, 400486, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, 23 Marinescu Street, 400337, Cluj-Napoca, Romania.
- MEDFUTURE-Research Center for Advanced Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, 23 Marinescu Street, 400337, Cluj-Napoca, Romania.
- Department of Functional Genomics and Experimental Pathology, "Prof. Dr. Ion Chiricuta" The Oncology Institute, 34-36 Republicii Street, 400015, Cluj-Napoca, Romania.
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Perera BPU, Svoboda L, Dolinoy DC. Genomic Tools for Environmental Epigenetics and Implications for Public Health. CURRENT OPINION IN TOXICOLOGY 2019; 18:27-33. [PMID: 31763499 DOI: 10.1016/j.cotox.2019.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Epigenetics refers to the study of mitotically heritable and potentially reversible changes in gene expression unrelated to the DNA sequence itself, influenced by epigenetic marks including chromatin modifications, non-coding RNA and alterations to DNA itself via methylation and hydroxymethylation. Epigenetics has taken center stage in the study of diseases such as cancer, diabetes, and neurodegeneration; however, its integration into the field of environmental health sciences and toxicology (e.g. Toxicoepigenetics) is in its infancy. This review highlights the need to evaluate surrogate and target tissues in the field of toxicoepigenetics as the National Institute of Environmental Health Sciences (NIEHS) multi-phased Toxicant Exposure and Response by Genomic and Epigenomic Regulators of Transcription (TaRGET) consortia make headway, and the emergence of non-coding RNA biomarkers. The review also discusses lead (Pb) as a potential toxicoepigenetic exposure, where pre- and post-natal Pb exposure is associated with reprogramming of DNA methylation, histone modifications, and microRNA expression, representing potential biomarkers or predictors for Pb-induced health outcomes. Finally, new advances in epigenome editing, highlighting the potential of small ncRNA, will be explored for environmental health sciences research.
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Affiliation(s)
- Bambarendage P U Perera
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI
| | - Laurie Svoboda
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI
| | - Dana C Dolinoy
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI
- University of Michigan School of Public Health, Department of Nutritional Sciences, Ann Arbor, MI
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Systematical Identification of Breast Cancer-Related Circular RNA Modules for Deciphering circRNA Functions Based on the Non-Negative Matrix Factorization Algorithm. Int J Mol Sci 2019; 20:ijms20040919. [PMID: 30791568 PMCID: PMC6412941 DOI: 10.3390/ijms20040919] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/03/2019] [Accepted: 02/12/2019] [Indexed: 01/22/2023] Open
Abstract
Circular RNA (circRNA), a kind of special endogenous RNA, has been shown to be implicated in crucial biological processes of multiple cancers as a gene regulator. However, the functional roles of circRNAs in breast cancer (BC) remain to be poorly explored, and relatively incomplete knowledge of circRNAs handles the identification and prediction of BC-related circRNAs. Towards this end, we developed a systematic approach to identify circRNA modules in the BC context through integrating circRNA, mRNA, miRNA, and pathway data based on a non-negative matrix factorization (NMF) algorithm. Thirteen circRNA modules were uncovered by our approach, containing 4164 nodes (80 circRNAs, 2703 genes, 63 miRNAs and 1318 pathways) and 67,959 edges in total. GO (Gene Ontology) function screening identified nine circRNA functional modules with 44 circRNAs. Within them, 31 circRNAs in eight modules having direct relationships with known BC-related genes, miRNAs or disease-related pathways were selected as BC candidate circRNAs. Functional enrichment results showed that they were closely related with BC-associated pathways, such as ‘KEGG (Kyoto Encyclopedia of Genes and Genomes) PATHWAYS IN CANCER’, ‘REACTOME IMMUNE SYSTEM’ and ‘KEGG MAPK SIGNALING PATHWAY’, ‘KEGG P53 SIGNALING PATHWAY’ or ‘KEGG WNT SIGNALING PATHWAY’, and could sever as potential circRNA biomarkers in BC. Comparison results showed that our approach could identify more BC-related functional circRNA modules in performance. In summary, we proposed a novel systematic approach dependent on the known disease information of mRNA, miRNA and pathway to identify BC-related circRNA modules, which could help identify BC-related circRNAs and benefits treatment and prognosis for BC patients.
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