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Xu GE, Zhao X, Li G, Gokulnath P, Wang L, Xiao J. The landscape of epigenetic regulation and therapeutic application of N 6-methyladenosine modifications in non-coding RNAs. Genes Dis 2024; 11:101045. [PMID: 38988321 PMCID: PMC11233902 DOI: 10.1016/j.gendis.2023.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 05/18/2023] [Accepted: 06/04/2023] [Indexed: 07/12/2024] Open
Abstract
RNA N6-methyladenosine (m6A) methylation is the most abundant and conserved RNA modification in eukaryotes. It participates in the regulation of RNA metabolism and various pathophysiological processes. Non-coding RNAs (ncRNAs) are defined as small or long transcripts which do not encode proteins and display numerous biological regulatory functions. Similar to mRNAs, m6A deposition is observed in ncRNAs. Studying RNA m6A modifications on ncRNAs is of great importance specifically to deepen our understanding of their biological roles and clinical implications. In this review, we summarized the recent research findings regarding the mutual regulation between RNA m6A modification and ncRNAs (with a specific focus on microRNAs, long non-coding RNAs, and circular RNAs) and their functions. We also discussed the challenges of m6A-containing ncRNAs and RNA m6A as therapeutic targets in human diseases and their future perspective in translational roles.
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Affiliation(s)
- Gui-E Xu
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Sciences, Shanghai University, Nantong, Jiangsu 226011, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Xuan Zhao
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Sciences, Shanghai University, Nantong, Jiangsu 226011, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Guoping Li
- Cardiovascular Division of the Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Priyanka Gokulnath
- Cardiovascular Division of the Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Lijun Wang
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Sciences, Shanghai University, Nantong, Jiangsu 226011, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Junjie Xiao
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Sciences, Shanghai University, Nantong, Jiangsu 226011, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai 200444, China
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Hsu CY, Faisal A, Jumaa SS, Gilmanova NS, Ubaid M, Athab AH, Mirzaei R, Karampoor S. Exploring the impact of circRNAs on cancer glycolysis: Insights into tumor progression and therapeutic strategies. Noncoding RNA Res 2024; 9:970-994. [PMID: 38770106 PMCID: PMC11103225 DOI: 10.1016/j.ncrna.2024.05.001] [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: 02/19/2024] [Revised: 04/18/2024] [Accepted: 05/04/2024] [Indexed: 05/22/2024] Open
Abstract
Cancer cells exhibit altered metabolic pathways, prominently featuring enhanced glycolytic activity to sustain their rapid growth and proliferation. Dysregulation of glycolysis is a well-established hallmark of cancer and contributes to tumor progression and resistance to therapy. Increased glycolysis supplies the energy necessary for increased proliferation and creates an acidic milieu, which in turn encourages tumor cells' infiltration, metastasis, and chemoresistance. Circular RNAs (circRNAs) have emerged as pivotal players in diverse biological processes, including cancer development and metabolic reprogramming. The interplay between circRNAs and glycolysis is explored, illuminating how circRNAs regulate key glycolysis-associated genes and enzymes, thereby influencing tumor metabolic profiles. In this overview, we highlight the mechanisms by which circRNAs regulate glycolytic enzymes and modulate glycolysis. In addition, we discuss the clinical implications of dysregulated circRNAs in cancer glycolysis, including their potential use as diagnostic and prognostic biomarkers. All in all, in this overview, we provide the most recent findings on how circRNAs operate at the molecular level to control glycolysis in various types of cancer, including hepatocellular carcinoma (HCC), prostate cancer (PCa), colorectal cancer (CRC), cervical cancer (CC), glioma, non-small cell lung cancer (NSCLC), breast cancer, and gastric cancer (GC). In conclusion, this review provides a comprehensive overview of the significance of circRNAs in cancer glycolysis, shedding light on their intricate roles in tumor development and presenting innovative therapeutic avenues.
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Affiliation(s)
- Chou-Yi Hsu
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan City, 71710, Taiwan
- Thunderbird School of Global Management, Arizona State University Tempe Campus, Phoenix, Arizona, 85004, USA
| | - Ahmed Faisal
- Department of Pharmacy, Al-Noor University College, Nineveh, Iraq
| | - Sally Salih Jumaa
- College of Pharmacy, National University of Science and Technology, Dhi Qar, Iraq
| | - Nataliya Sergeevna Gilmanova
- Department of Prosthetic Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Russia, Moscow
| | - Mohammed Ubaid
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| | - Aya H. Athab
- Department of Pharmacy, Al-Zahrawi University College, Karbala, Iraq
| | - Rasoul Mirzaei
- Venom & Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Sajad Karampoor
- Gastrointestinal & Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
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3
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Liu J, Zhang Y, Liu C, Jiang Y, Wang Z, Guo Z, Li X. A single dose of VEGF-A circular RNA sustains in situ long-term expression of protein to accelerate diabetic wound healing. J Control Release 2024; 373:319-335. [PMID: 38986911 DOI: 10.1016/j.jconrel.2024.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 06/28/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
Diabetic foot ulcer (DFU), which is characterised by damage to minute blood vessels or capillaries around wounds, is one of the most serious and dreaded complications of diabetes. It is challenging to repair chronic non-healing DFU wounds. Vascular endothelial growth factor (VEGF) plays an important role in angiogenesis and promotes wound healing in DFU. However, it is difficult to sustainably deliver VEGF to the wound site owing to its poor stability and easy degradation. To overcome this challenge, lipid nanoparticles (LNP) encapsulating circular RNA (circRNA) encoding VEGF-A have been developed to continuously generate and release VEGF-A and accelerate diabetic wound healing. First, VEGF-A circRNA was synthesized using group I intron autocatalysis strategy and confirmed by enzyme digestion, polymerase chain reaction, and sequencing assay. VEGF-A circRNA was encapsulated in ionizable lipid U-105-derived LNP (U-LNP) using microfluidic technology to fabricate U-LNP/VEGF-A circRNA. For comparison, a commercially ionizable lipid ALC-0315-derived LNP (A-LNP) encapsulating circRNA (A-LNP/circRNA) was used. Dynamic light scattering and transmission electron microscopy characterization indicated that U-LNP/circRNA had spherical structure with an average diameter of 108.5 nm, a polydispersity index of 0.22, and a zeta potential of -3.31 mV. The messenger RNA (mRNA) encapsulation efficiency (EE%) of U-LNP was 87.12%. In vitro transfection data confirmed better stability and long-term VEGF-A expression of circRNA compared with linear mRNA. Assessment of cytotoxicity and innate immunity further revealed that U-LNP/circRNA was biocompatible and induced a weak congenital immune response. Cell scratch and angiogenesis tests demonstrated the bioactivity of U-LNP/VEGF-A circRNA owing to its VEGF-A expression. In situ bioluminescence imaging of firefly luciferase (F-Luc) probe and ELISA demonstrated that circRNA had long-term and strong expression of VEGF-A in the first week, and a gradual decrease in the next week at the wound site and surrounding areas. Finally, a diabetic mouse model was used to validate the healing effect of U-LNP/VEGF-A circRNA formulation. The results showed that a single dose of U-LNP/VEGF-A circRNA administered by dripping resulted in almost complete wound recovery on day 12, which was significantly superior to that of U-LNP/VEGF-A linear mRNA, and it also outperformed recombinant human vascular endothelial growth factor (rhVEGF) injection and A-LNP/circRNA dripping. Histological analysis confirmed the healing efficiency and low toxicity of U-LNP/VEGF-A circRNA formulation. Together, VEGF-A circRNA delivered by U-105-derived LNP showed good performance in wound healing, which was ascribed to the long-term expression and continuous release of VEGF-A, and has potential applications for the treatment of diabetic foot ulcer wounds.
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Affiliation(s)
- Jinyu Liu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Yanhao Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Chao Liu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Yuhao Jiang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Zihao Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Zongke Guo
- Zhongda Hospital, Southeast University, Nanjing 210009, PR China.
| | - Xinsong Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China.
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Dłuski DF, Cieśla M, Darmochwał-Kolarz D. Circular RNA hsa_circ_0002268 ( PHACTR1) Is Specific to Gestational Diabetes Mellitus in a Polish Pregnant Population. Int J Mol Sci 2024; 25:7040. [PMID: 39000149 PMCID: PMC11241481 DOI: 10.3390/ijms25137040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 07/16/2024] Open
Abstract
Gestational diabetes mellitus (GDM) is an intolerance of carbohydrate of any degree, which appears for the first time or is diagnosed during pregnancy. The objective of this study is to assess the differences in circular RNA (circRNA) in a Polish pregnant population with and without GDM. A total of 62 pregnant women, 34 with GDM and 28 controls, were enrolled in the study. Total RNAs were extracted from plasma and reverse transcription to complementary DNA (cDNA) was performed. A panel covering 271 amplicons, targeting both linear and circular as well as negative control gene transcripts, was used. Next-generation sequencing was used to evaluate the circRNA quantity. Data analysis was performed using the Coverage Analysis plugin in the Torrent Suite Software (Torrent Suite 5.12.3). A two-step normalization was performed by dividing each transcript read count by the total number of reads generated for the sample, followed by dividing the quantity of each transcript by β-actin gene expression. Both circular and linear forms of RNAs were independently evaluated. A total of 57 transcripts were dysregulated between pregnant women with GDM and controls. Most of the targets (n = 25) were downregulated (cut-off ratio below 0.5), and one target showed a trend toward strong upregulation (ratio 1.45). A total of 39 targets were positively correlated with fasting plasma glucose (FPG), but none of the tested targets were correlated with insulin, CRP or HOMA-IR levels. Among the pregnant women with gestational diabetes, the relative quantity of hsa_circ_0002268 (PHACTR1) was approximately 120% higher than among healthy pregnant women: 0.046 [0.022-0.096] vs. 0.021 [0.007-0.047], respectively, (p = 0.0029). Elevated levels of hsa_circ_0002268 (PHACTR1) might be specific to the Polish population of pregnant women with GDM, making it useful as a potential molecular biomarker in the management of GDM in Poland.
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Affiliation(s)
| | - Marek Cieśla
- Institute of Medical Science, College of Medical Science, University of Rzeszow, 35-959 Rzeszow, Poland
| | - Dorota Darmochwał-Kolarz
- Department of Obstetrics and Gynecology, College of Medical Science, University of Rzeszow, 35-301 Rzeszow, Poland
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Valenti MT, Zerlotin R, Cominacini M, Bolognin S, Grano M, Dalle Carbonare L. Exploring the Role of Circular RNA in Bone Biology: A Comprehensive Review. Cells 2024; 13:999. [PMID: 38920630 PMCID: PMC11201515 DOI: 10.3390/cells13120999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/27/2024] Open
Abstract
Circular RNAs (circRNAs) have emerged as pivotal regulators of gene expression with diverse roles in various biological processes. In recent years, research into circRNAs' involvement in bone biology has gained significant attention, unveiling their potential as novel regulators and biomarkers in bone-related disorders and diseases. CircRNAs, characterized by their closed-loop structure, exhibit stability and resistance to degradation, underscoring their functional significance. In bone tissue, circRNAs are involved in critical processes such as osteogenic differentiation, osteoclastogenesis, and bone remodeling through intricate molecular mechanisms including microRNA regulation. Dysregulated circRNAs are associated with various bone disorders, suggesting their potential as diagnostic and prognostic biomarkers. The therapeutic targeting of these circRNAs holds promise for addressing bone-related conditions, offering new perspectives for precision medicine. Thus, circRNAs constitute integral components of bone regulatory networks, impacting both physiological bone homeostasis and pathological conditions. This review provides a comprehensive overview of circRNAs in bone biology, emphasizing their regulatory mechanisms, functional implications, and therapeutic potential.
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Affiliation(s)
- Maria Teresa Valenti
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37100 Verona, Italy
| | - Roberta Zerlotin
- Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, Italy; (R.Z.); (M.G.)
| | - Mattia Cominacini
- Department of Engineering for the Innovation Medicine, University of Verona, 37100 Verona, Italy; (M.C.); (L.D.C.)
| | - Silvia Bolognin
- MERLN Institute, Maastricht University, Universiteitssingel 40, 6229 ET Maastricht, The Netherlands;
| | - Maria Grano
- Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, 70124 Bari, Italy; (R.Z.); (M.G.)
| | - Luca Dalle Carbonare
- Department of Engineering for the Innovation Medicine, University of Verona, 37100 Verona, Italy; (M.C.); (L.D.C.)
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Liu J, Liu R, Wang H, Zhang Z, Wang J, Wei F. CircPRKD3/miR-6783-3p responds to mechanical force to facilitate the osteogenesis of stretched periodontal ligament stem cells. J Orthop Surg Res 2024; 19:257. [PMID: 38649946 PMCID: PMC11036753 DOI: 10.1186/s13018-024-04727-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/06/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND The mechanotransduction mechanisms by which cells regulate tissue remodeling are not fully deciphered. Circular RNAs (circRNAs) are crucial to various physiological processes, including cell cycle, differentiation, and polarization. However, the effects of mechanical force on circRNAs and the role of circRNAs in the mechanobiology of differentiation and remodeling in stretched periodontal ligament stem cells (PDLSCs) remain unclear. This article aims to explore the osteogenic function of mechanically sensitive circular RNA protein kinase D3 (circPRKD3) and elucidate its underlying mechanotransduction mechanism. MATERIALS AND METHODS PDLSCs were elongated with 8% stretch at 0.5 Hz for 24 h using the Flexcell® FX-6000™ Tension System. CircPRKD3 was knockdown or overexpressed with lentiviral constructs or plasmids. The downstream molecules of circPRKD3 were predicted by bioinformatics analysis. The osteogenic effect of related molecules was evaluated by quantitative real-time PCR (qRT-PCR) and western blot. RESULTS Mechanical force enhanced the osteogenesis of PDLSCs and increased the expression of circPRKD3. Knockdown of circPRKD3 hindered PDLSCs from osteogenesis under mechanical force, while overexpression of circPRKD3 promoted the early osteogenesis process of PDLSCs. With bioinformatics analysis and multiple software predictions, we identified hsa-miR-6783-3p could act as the sponge of circPRKD3 to indirectly regulate osteogenic differentiation of mechanically stimulated PDLSCs. CONCLUSIONS Our results first suggested that both circPRKD3 and hsa-miR-6783-3p could enhance osteogenesis of stretched PDLSCs. Furthermore, hsa-miR-6783-3p could sponge circPRKD3 to indirectly regulate RUNX2 during the periodontal tissue remodeling process in orthodontic treatment.
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Affiliation(s)
- Jiani Liu
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, Jinan, Shandong, 250012, China
| | - Rui Liu
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, Jinan, Shandong, 250012, China
| | - Hong Wang
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, Jinan, Shandong, 250012, China
| | - Zijie Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, Jinan, Shandong, 250012, China
| | - Jixiao Wang
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, Jinan, Shandong, 250012, China
| | - Fulan Wei
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No. 44-1 Wenhua Road West, Jinan, Shandong, 250012, China.
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Huang C, Aghaei-Zarch SM. From molecular pathogenesis to therapy: Unraveling non-coding RNAs/DNMT3A axis in human cancers. Biochem Pharmacol 2024; 222:116107. [PMID: 38438051 DOI: 10.1016/j.bcp.2024.116107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/03/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
Cancer is a comprehensive classification encompassing more than 100 forms of malignancies that manifest in diverse tissues within the human body. Recent studies have provided evidence that aberrant epigenetic modifications are pivotal indicators of cancer. Epigenetics encapsulates DNA methyltransferases as a crucial class of modifiers. DNMTs, including DNMT3A, assume central roles in DNA methylation processes that orchestrate normal biological functions, such as gene transcription, predominantly in mammals. Typically, deviations in DNMT3A function engender distortions in factors that drive tumor growth and progression, thereby exacerbating the malignant phenotype of tumors. Consequently, such abnormalities pose significant challenges in cancer therapy because they impede treatment efficacy. Non-coding RNAs (ncRNAs) represent a group of RNA molecules that cannot encode functional proteins. Recent investigation attests to the crucial significance of regulatory ncRNAs in epigenetic regulation. Notably, recent reports have illuminated the complex interplay between ncRNA expression and epigenetic regulatory machinery, including DNMT3A, particularly in cancer. Recent findings have demonstrated that miRNAs, namely miR-770-5p, miR-101, and miR-145 exhibit the capability to target DNMT3A directly, and their aberration is implicated in diverse cellular abnormalities that predispose to cancer development. This review aims to articulate the interplay between DNMT3A and the ncRNAs, focusing on its impact on the development and progression of cancer, cancer therapy resistance, cancer stem cells, and prognosis. Importantly, the emergence of such reports that suggest a connection between DNMT3A and ncRNAs in several cancers indicates that this connecting axis offers a valuable target with significant therapeutic potential that might be exploited for cancer management.
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Affiliation(s)
- Chunjie Huang
- School of Medicine, Nantong University, Nantong 226001, China
| | - Seyed Mohsen Aghaei-Zarch
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Wu H, Liu X, Fang Y, Yang Y, Huang Y, Pan X, Shen HB. Decoding protein binding landscape on circular RNAs with base-resolution transformer models. Comput Biol Med 2024; 171:108175. [PMID: 38402841 DOI: 10.1016/j.compbiomed.2024.108175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/16/2024] [Accepted: 02/18/2024] [Indexed: 02/27/2024]
Abstract
Circular RNAs (circRNAs), a class of endogenous RNA with a covalent loop structure, can regulate gene expression by serving as sponges for microRNAs and RNA-binding proteins (RBPs). To date, most computational methods for predicting RBP binding sites on circRNAs focus on circRNA fragments instead of circRNAs. These methods detect whether a circRNA fragment contains binding sites, but cannot determine where are the binding sites and how many binding sites are on the circRNA transcript. We report a hybrid deep learning-based tool, CircSite, to predict RBP binding sites at single-nucleotide resolution and detect key contributed nucleotides on circRNA transcripts. CircSite takes advantage of convolutional neural networks (CNNs) and Transformer for learning local and global representations of circRNAs binding to RBPs, respectively. We construct 37 datasets of circRNAs interacting with proteins for benchmarking and the experimental results show that CircSite offers accurate predictions of RBP binding nucleotides and detects key subsequences aligning well with known binding motifs. CircSite is an easy-to-use online webserver for predicting RBP binding sites on circRNA transcripts and freely available at http://www.csbio.sjtu.edu.cn/bioinf/CircSite/.
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Affiliation(s)
- Hehe Wu
- Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, And Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai 200240, China
| | - Xiaojian Liu
- Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, And Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai 200240, China
| | - Yi Fang
- Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, And Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai 200240, China
| | - Yang Yang
- Center for Brain-Like Computing and Machine Intelligence, Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yan Huang
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics Chinese Academy of Sciences, 500 Yutian Road, Shanghai, 200083, China
| | - Xiaoyong Pan
- Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, And Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai 200240, China.
| | - Hong-Bin Shen
- Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, And Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai 200240, China.
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9
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Xie HS, Huang JF, Lin QX, Chen YW, Chen GP, Lin QC. The role of exosomal circular RNA ZNF292 in intermittent hypoxia-induced AC16 cardiomyocytes injury. Sleep Breath 2024; 28:319-329. [PMID: 37726500 DOI: 10.1007/s11325-023-02920-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/19/2023] [Accepted: 09/06/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Exosomes are involved in cell-to-cell communication in numerous diseases including cardiovascular diseases, neurological diseases. Little attention has been dedicated to exosomal circular RNAs in obstructive sleep apnea (OSA)-related cardiovascular diseases. The aim of this study was to explore the role of exosomal circular RNA ZNF292 (circZNF292) on AC16 cells exposure to intermittent hypoxia (IH). METHODS Exosome release inhibitor GW4869 was used to examine the effect of exosomes on IH-induced AC16 cells apoptosis. The expression of exosomal circZNF292 was detected by qRT-PCR in AC16 cells exposure to IH, and a luciferase reporter assay was conducted to confirm the connection between circZNF292 and miR-146a-5p. Exosomal circZNF292 was stably transfected with short hairpin RNAs (shRNAs) against circZNF292 and co-cultured with AC16 cells. The expression of miR-146a-5p and apoptosis-related protein was then measured to evaluate the effect of exosomal circZNF292. RESULTS We found that IH contributed to the AC16 cells apoptosis, and the administration of GW4869 increased the apoptosis of cardiomyocytes when exposed to IH. The expression of exosomal circZNF292 decreased and miR-146a-5p increased significantly in AC16 cells exposed to IH compared to normoxic conditions. Bioinformatics analysis predicted a circZNF292/miR-146a-5p axis in IH-induced cardiomyocytes apoptosis. The dual-luciferase reporter system validated the direct interaction of circZNF292 and miR-146a-5p. Knockdown of circZNF292 increased the expressions of miR-146a-5p and accelerated the AC16 cardiomyocytes apoptosis. CONCLUSIONS The findings of this study suggested a novel mechanism by which exosomes transmit intrinsic regulatory signals to the myocardium through the exosomal circZNF292/miR-146a-5p axis. This finding highlights the potential of targeting this pathway as a therapeutic approach for treating cardiovascular diseases associated with OSA.
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Affiliation(s)
- Han-Sheng Xie
- Department of Respiratory and Critical Care Medicine, Respiratory Disease Research Institute, The First Affiliated Hospital, Fujian Medical University, NO 20, Chazhong road, Taijiang district, Fuzhou, Fujian Province, 350005, People's Republic of China
- Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Jie-Feng Huang
- Department of Respiratory and Critical Care Medicine, Respiratory Disease Research Institute, The First Affiliated Hospital, Fujian Medical University, NO 20, Chazhong road, Taijiang district, Fuzhou, Fujian Province, 350005, People's Republic of China
- Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Qiao-Xian Lin
- Department of Hematology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yue-Wen Chen
- Department of Pharmacy, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Gong-Ping Chen
- Department of Respiratory and Critical Care Medicine, Respiratory Disease Research Institute, The First Affiliated Hospital, Fujian Medical University, NO 20, Chazhong road, Taijiang district, Fuzhou, Fujian Province, 350005, People's Republic of China
- Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Qi-Chang Lin
- Department of Respiratory and Critical Care Medicine, Respiratory Disease Research Institute, The First Affiliated Hospital, Fujian Medical University, NO 20, Chazhong road, Taijiang district, Fuzhou, Fujian Province, 350005, People's Republic of China.
- Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China.
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Shao C, Niu G, Su P, Zhang J, Zhu X, Han G, Xu P, Bai J, Sun K, Sun Y. circFOXK2 promotes the progression of osteoarthritis by regulating the miR-4640-5p/NOTCH2 axis. Mod Rheumatol 2024; 34:422-432. [PMID: 36537124 DOI: 10.1093/mr/roac158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/14/2022] [Accepted: 12/15/2022] [Indexed: 02/17/2024]
Abstract
OBJECTIVES Osteoarthritis (OA) is the most common age-related chronic and disabling joint disease, frequently causing pain and disability in the adult population. Given that there are no proven disease-modifying drugs for OA, it is urgent to gain a deeper understanding of OA pathogenesis. This study intended to uncover the circFOXK2 regulation in OA. METHODS First, an in vitro OA cell model was constructed by treating murine chondrocytes with interleukin (IL)-1β. Then, a series of functional assays were conducted to evaluate the effect of circFOXK2 on OA progression in murine chondrocytes. Bioinformatics analysis and mechanism investigations were performed to investigate the competitive endogenous ribonucleic acid (RNA) network of circFOXK2 in OA. RESULTS circFOXK2 is overexpressed in IL-1β-treated chondrocyte. We confirmed the cyclic structure and cytoplasmic distribution of circFOXK2. Functionally, circFOXK2 promotes chondrocyte apoptosis and extracellular matrix degradation but inhibits chondrocyte proliferation. Mechanically, circFOXK2 competitively binds to microRNA-4640-5p (miR-4640-5p) to enhance NOTCH2 expression in OA, affecting OA progression. Besides, circFOXK2 could motivate the NOTCH pathway to accelerate OA progression. CONCLUSIONS The circFOXK2/miR-4640-5p/NOTCH2 axis stimulates the NOTCH pathway to promote the transcription of inflammatory cytokines (IL33, IL17F, and IL6), consequently facilitating OA progression in murine chondrocytes.
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Affiliation(s)
- Chen Shao
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- Department of Orthopedics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
- Key Laboratory of Digital Orthopedics, Bengbu Medical College, Bengbu, Anhui, China
| | - Guoqi Niu
- Department of Orthopedics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
- Key Laboratory of Digital Orthopedics, Bengbu Medical College, Bengbu, Anhui, China
| | - Peng Su
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jingquan Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
- Key Laboratory of Digital Orthopedics, Bengbu Medical College, Bengbu, Anhui, China
| | - Xunbing Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
- Key Laboratory of Digital Orthopedics, Bengbu Medical College, Bengbu, Anhui, China
| | - Guansheng Han
- Department of Orthopedics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
- Key Laboratory of Digital Orthopedics, Bengbu Medical College, Bengbu, Anhui, China
| | - Panpan Xu
- Department of Orthopedics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
- Key Laboratory of Digital Orthopedics, Bengbu Medical College, Bengbu, Anhui, China
| | - Jianzhong Bai
- Department of Orthopedics, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
- Key Laboratory of Digital Orthopedics, Bengbu Medical College, Bengbu, Anhui, China
| | - Kui Sun
- Department of Clinical Laboratory, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Yongming Sun
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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11
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Caponnetto A, Ferrara C, Fazzio A, Agosta N, Scribano M, Vento ME, Borzì P, Barbagallo C, Stella M, Ragusa M, Scollo P, Barbagallo D, Purrello M, Di Pietro C, Battaglia R. A Circular RNA Derived from the Pumilio 1 Gene Could Regulate PTEN in Human Cumulus Cells. Genes (Basel) 2024; 15:124. [PMID: 38275605 PMCID: PMC10815046 DOI: 10.3390/genes15010124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
CircRNAs are a class of non-coding RNAs able to regulate gene expression at multiple levels. Their involvement in physiological processes, as well as their altered regulation in different human diseases, both tumoral and non-tumoral, is well documented. However, little is known about their involvement in female reproduction. This study aims to identify circRNAs potentially involved in reproductive women's health. Candidate circRNAs expressed in ovary and sponging miRNAs, already known to be expressed in the ovary, were selected by a computational approach. Using real time PCR, we verified their expression and identified circPUM1 as the most interesting candidate circRNA for further analyses. We assessed the expression of circPUM1 and its linear counterpart in all the follicle compartments and, using a computational and experimental approach, identified circPUM1 direct and indirect targets, miRNAs and mRNAs, respectively, in cumulus cells. We found that both circPUM1 and its mRNA host gene are co-expressed in all the follicle compartments and proposed circPUM1 as a potential regulator of PTEN, finding a strong positive correlation between circPUM1 and PTEN mRNA. These results suggest a possible regulation of PTEN by circPUM1 in cumulus cells and point out the important role of circRNA inside the pathways related to follicle growth and oocyte maturation.
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Affiliation(s)
- Angela Caponnetto
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
| | - Carmen Ferrara
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
- Department of Physics and Astronomy “Ettore Majorana”, University of Catania, 95123 Catania, Italy
| | - Anna Fazzio
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
- Department of Physics and Astronomy “Ettore Majorana”, University of Catania, 95123 Catania, Italy
| | - Noemi Agosta
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, 95123 Catania, Italy; (N.A.); (M.S.)
| | - Marianna Scribano
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, 95123 Catania, Italy; (N.A.); (M.S.)
| | - Maria Elena Vento
- IVF Unit, Cannizzaro Hospital, 95123 Catania, Italy; (M.E.V.); (P.B.)
| | - Placido Borzì
- IVF Unit, Cannizzaro Hospital, 95123 Catania, Italy; (M.E.V.); (P.B.)
| | - Cristina Barbagallo
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
| | - Michele Stella
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
- Department of Physics and Astronomy “Ettore Majorana”, University of Catania, 95123 Catania, Italy
| | - Marco Ragusa
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
| | - Paolo Scollo
- Department of Medicine and Surgery, Kore University, 94100 Enna, Italy;
- Maternal and Child Department, Obstetrics and Gynecology Unit, Cannizzaro Hospital, 95123 Catania, Italy
| | - Davide Barbagallo
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
| | - Michele Purrello
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
| | - Cinzia Di Pietro
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
| | - Rosalia Battaglia
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics “G. Sichel”, University of Catania, 95123 Catania, Italy; (C.F.); (A.F.); (C.B.); (M.S.); (M.R.); (D.B.); (M.P.); (C.D.P.); (R.B.)
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12
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Chen S, Song P, Wang Y, Wang Z, Xue J, Jiang Y, Zhou Y, Zhao J, Tang L. CircMAPK9 promotes adipogenesis through modulating hsa-miR-1322/FTO axis in obesity. iScience 2023; 26:107756. [PMID: 37692283 PMCID: PMC10492215 DOI: 10.1016/j.isci.2023.107756] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/21/2023] [Accepted: 08/24/2023] [Indexed: 09/12/2023] Open
Abstract
Circular RNA (circRNA) is a special category of non-coding RNA that has garnered increasing attention in the exploration of lipid metabolism. However, the functional regulation mechanisms of circRNAs in obesity diseases remain unclear. By whole transcriptome sequencing, a total of 164 circular RNAs were found to exhibit differential expression between lean and obese individuals. RT-qPCR was used to detect significant expression of circMAPK9 in obese individuals, and it was closely related to BMI. Western blot, triglyceride detection, and Oil Red O staining were employed to investigate the role of circMAPK9/hsa-miR-1322/FTO in adipogenesis. In adipocytes, the connection between hsa-miR-1322 and circMAPK9 was verified using fluorescence in situ hybridization, luciferase reporter assay, and RNA immunoprecipitation. It was found that circMAPK9 competed for binding hsa-miR-1322 in the cytoplasm, weakening the inhibitory effect on FTO and promoting adipogenesis. Our study revealed the regulatory mechanism and important role of circMAPK9 in the process of adipogenesis.
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Affiliation(s)
- Shuai Chen
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Peng Song
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Yu Wang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Zeng Wang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Jiaming Xue
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Yicheng Jiang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Yan Zhou
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Jie Zhao
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Liming Tang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou City, Jiangsu Province, China
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13
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Ivanišević V, Žilić L, Čunko M, Fadiga H, Munitić I, Jurak I. RNA Editing-Dependent and -Independent Roles of Adenosine Deaminases Acting on RNA Proteins in Herpesvirus Infection-Hints on Another Layer of Complexity. Viruses 2023; 15:2007. [PMID: 37896783 PMCID: PMC10611208 DOI: 10.3390/v15102007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/24/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
The Adenosine Deaminases Acting on RNA (ADAR) catalyze the posttranscriptional deamination of adenosine residues to inosine in double-stranded RNAs (dsRNAs, A-to-I editing), preventing the overactivation of dsRNA sensor molecules and interferons. RNA editing is the cornerstone of innate immunity that distinguishes between self and non-self (virus), and it is essential for normal regulation of cellular homeostasis. Although much is already known about the role of ADAR proteins in RNA virus infection, the role of ADAR proteins in herpesvirus infection remains largely unexplored. In this review, we provide several lines of evidence from studies of different herpesviruses for another level of complexity in regulating the already intricate biphasic life cycle of herpesviruses.
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Affiliation(s)
| | | | | | | | | | - Igor Jurak
- Department of Biotechnology, University of Rijeka, 51000 Rijeka, Croatia (L.Ž.)
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14
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Tuerdimaimaiti D, Abuduaini B, Kang S, Jiao J, Li M, Madeniyati W, Tuerdi B, Aili G, Tuerhong R, Kulaxi A. Genome-wide identification and functional analysis of dysregulated alternative splicing profiles in sepsis. J Inflamm (Lond) 2023; 20:31. [PMID: 37749550 PMCID: PMC10521395 DOI: 10.1186/s12950-023-00355-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 08/10/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND An increasing body of evidence now shows that the long-term mortality of patients with sepsis are associated with various sepsis-related immune cell defects. Alternative splicing (AS), as a sepsis-related immune cell defect, is considered as a potential immunomodulatory therapy target to improve patient outcomes. However, our understanding of the role AS plays in sepsis is currently insufficient. AIM This study investigated possible associations between AS and the gene regulatory networks affecting immune cells. We also investigated apoptosis and AS functionality in sepsis pathophysiology. METHODS In this study, we assessed publicly available mRNA-seq data that was obtained from the NCBI GEO dataset (GSE154918), which included a healthy group (HLTY), a mild infection group (INF1), asepsis group (Seps), and a septic shock group (Shock). A total of 79 samples (excluding significant outliers) were identified by a poly-A capture method to generate RNA-seq data. The variable splicing events and highly correlated RNA binding protein (RBP) genes in each group were then systematically analyzed. RESULTS For the first time, we used systematic RNA-seq analysis of sepsis-related AS and identified 1505 variable AS events that differed significantly (p <= 0.01) across the four groups. In the sepsis group, the genes related to significant AS events, such as, SHISA5 and IFI27, were mostly enriched in the cell apoptosis pathway. Furthermore, we identified differential splicing patterns within each of the four groups. Significant differences in the expression of RNA Binding Protein(RBP) genes were observed between the control group and the sepsis group. RBP gene expression was highly correlated with variant splicing events in sepsis, as determined by co-expression analysis; The expression of DDX24, CBFA2T2, NOP, ILF3, DNMT1, FTO, PPRC1, NOLC1 RBPs were significant reduced in sepsis compared to the healthy group. Finally, we constructed an RBP-AS functional network. CONCLUSION Analysis indicated that the RBP-AS functional network serves as a critical post-transcriptional mechanism that regulates the development of sepsis. AS dysregulation is associated with alterations in the regulatory gene expression network that is involved in sepsis. Therefore, the RBP-AS expression network could be useful in refining biomarker predictions in the development of new therapeutic targets for the pathogenesis of sepsis.
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Affiliation(s)
- Dilixiati Tuerdimaimaiti
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China
| | - Buzukela Abuduaini
- The Intensive Care Unit, The First Affiliated Hospital of Xinjiang Medical University, Wulumuqi, Xinjiang, 830054, China
| | - Shaotao Kang
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China
| | - Jinliang Jiao
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China
| | - Mengchen Li
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China
| | - Wolazihan Madeniyati
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China
| | - Baihetinisha Tuerdi
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China.
| | - Gulisitan Aili
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China
| | - Reyila Tuerhong
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China
| | - Ajiguli Kulaxi
- Department of RICU, The First Affiliated Hospital of Xinjiang Medical University, 393 South Li Yu Shan Road, Wulumuqi, Xinjiang, 830054, China
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15
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He Z, Zhu Q. Circular RNAs: Emerging roles and new insights in human cancers. Biomed Pharmacother 2023; 165:115217. [PMID: 37506578 DOI: 10.1016/j.biopha.2023.115217] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
Circular RNAs (circRNAs) are single-stranded, covalently closed RNA molecules formed by mRNA exon back-splicing. Although the circRNA functions remain largely unknown, their currently known biological activities include: acting as competing endogenous RNA (ceRNA) to adsorb microRNA (miRNA), binding proteins, regulating transcription or splicing, and ability to be translated into proteins or peptides. A growing number of studies have found that many circRNAs are abnormally expressed in various cancers, and their dysregulation is highly correlated with tumor progression. Therefore, diagnosis and treatment using circRNAs as biomarkers and therapeutic targets, respectively, has gradually become an attractive research topic. In this review, we introduced the canonical biogenesis pathways and degradation mechanisms of circRNAs. In addition, we examined the biological functions of circRNAs in vivo. Finally, we discussed the current clinical applications and challenges faced by circRNA, and proposed future directions for this promising research field.
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Affiliation(s)
- Zhilin He
- Xiangya School of Pharmaceutical Sciences in Central South University, Changsha 410013, Hunan, China.
| | - Qubo Zhu
- Xiangya School of Pharmaceutical Sciences in Central South University, Changsha 410013, Hunan, China.
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16
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Wang XF, Yu CQ, You ZH, Qiao Y, Li ZW, Huang WZ, Zhou JR, Jin HY. KS-CMI: A circRNA-miRNA interaction prediction method based on the signed graph neural network and denoising autoencoder. iScience 2023; 26:107478. [PMID: 37583550 PMCID: PMC10424127 DOI: 10.1016/j.isci.2023.107478] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/16/2023] [Accepted: 07/21/2023] [Indexed: 08/17/2023] Open
Abstract
Circular RNA (circRNA) plays an important role in the diagnosis, treatment, and prognosis of human diseases. The discovery of potential circRNA-miRNA interactions (CMI) is of guiding significance for subsequent biological experiments. Limited by the small amount of experimentally supported data and high randomness, existing models are difficult to accomplish the CMI prediction task based on real cases. In this paper, we propose KS-CMI, a novel method for effectively accomplishing CMI prediction in real cases. KS-CMI enriches the 'behavior relationships' of molecules by constructing circRNA-miRNA-cancer (CMCI) networks and extracts the behavior relationship attribute of molecules based on balance theory. Next, the denoising autoencoder (DAE) is used to enhance the feature representation of molecules. Finally, the CatBoost classifier was used for prediction. KS-CMI achieved the most reliable prediction results in real cases and achieved competitive performance in all datasets in the CMI prediction.
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Affiliation(s)
- Xin-Fei Wang
- School of Information Engineering, Xijing University, Xi’an, China
| | - Chang-Qing Yu
- School of Information Engineering, Xijing University, Xi’an, China
| | - Zhu-Hong You
- School of Computer Science, Northwestern Polytechnical University, Xi’an, China
| | - Yan Qiao
- College of Agriculture and Forestry, Longdong University, Qingyang, China
| | - Zheng-Wei Li
- School of Computer Science and Technology, China University of Mining and Technology, Xuzhou, China
| | - Wen-Zhun Huang
- School of Information Engineering, Xijing University, Xi’an, China
| | - Ji-Ren Zhou
- School of Computer Science, Northwestern Polytechnical University, Xi’an, China
| | - Hai-Yan Jin
- School of Computer Science and Engineering, Xi’an University of Technology, Xi’an, China
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17
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Macvanin MT, Gluvic Z, Bajic V, Isenovic ER. Novel insights regarding the role of noncoding RNAs in diabetes. World J Diabetes 2023; 14:958-976. [PMID: 37547582 PMCID: PMC10401459 DOI: 10.4239/wjd.v14.i7.958] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 05/01/2023] [Accepted: 05/23/2023] [Indexed: 07/12/2023] Open
Abstract
Diabetes mellitus (DM) is a group of metabolic disorders defined by hyperglycemia induced by insulin resistance, inadequate insulin secretion, or excessive glucagon secretion. In 2021, the global prevalence of diabetes is anticipated to be 10.7% (537 million people). Noncoding RNAs (ncRNAs) appear to have an important role in the initiation and progression of DM, according to a growing body of research. The two major groups of ncRNAs implicated in diabetic disorders are miRNAs and long noncoding RNAs. miRNAs are single-stranded, short (17–25 nucleotides), ncRNAs that influence gene expression at the post-transcriptional level. Because DM has reached epidemic proportions worldwide, it appears that novel diagnostic and therapeutic strategies are required to identify and treat complications associated with these diseases efficiently. miRNAs are gaining attention as biomarkers for DM diagnosis and potential treatment due to their function in maintaining physiological homeostasis via gene expression regulation. In this review, we address the issue of the gradually expanding global prevalence of DM by presenting a complete and up-to-date synopsis of various regulatory miRNAs involved in these disorders. We hope this review will spark discussion about ncRNAs as prognostic biomarkers and therapeutic tools for DM. We examine and synthesize recent research that used novel, high-throughput technologies to uncover ncRNAs involved in DM, necessitating a systematic approach to examining and summarizing their roles and possible diagnostic and therapeutic uses.
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Affiliation(s)
- Mirjana T Macvanin
- Department of Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
| | - Zoran Gluvic
- Department of Endocrinology and Diabetes, Clinic for Internal Medicine, Zemun Clinical Hospital, School of Medicine, University of Belgrade, Belgrade 11000, Serbia
| | - Vladan Bajic
- Department of Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
| | - Esma R Isenovic
- Department of Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11000, Serbia
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18
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Noor S, Pritha AN, Pasmay AA, Sanchez JE, Sanchez JJ, Fernandez-Oropeza AK, Sun MS, Dell’Orco M, Davies S, Savage DD, Mellios N, Milligan ED. Prenatal alcohol exposure dysregulates spinal and circulating immune cell circular RNA expression in adult female rats with chronic sciatic neuropathy. Front Neurosci 2023; 17:1180308. [PMID: 37360167 PMCID: PMC10288115 DOI: 10.3389/fnins.2023.1180308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 05/09/2023] [Indexed: 06/28/2023] Open
Abstract
Alcohol consumption during pregnancy is associated with Fetal Alcohol Spectrum Disorders (FASD) that results in a continuum of central nervous system (CNS) deficits. Emerging evidence from both preclinical and clinical studies indicate that the biological vulnerability to chronic CNS disease in FASD populations is driven by aberrant neuroimmune actions. Our prior studies suggest that, following minor nerve injury, prenatal alcohol exposure (PAE) is a risk factor for developing adult-onset chronic pathological touch sensitivity or allodynia. Allodynia in PAE rats occurs concurrently with heightened proinflammatory peripheral and spinal glial-immune activation. However, minor nerve-injured control rats remain non-allodynic, and corresponding proinflammatory factors are unaltered. A comprehensive molecular understanding of the mechanism(s) that underlie PAE-induced proinflammatory bias during adulthood remains elusive. Non-coding circular RNAs (circRNAs) are emerging as novel modulators of gene expression. Here, we hypothesized that PAE induces dysregulation of circRNAs that are linked to immune function under basal and nerve-injured conditions during adulthood. Utilizing a microarray platform, we carried out the first systematic profiling of circRNAs in adult PAE rats, prior to and after minor nerve injury. The results demonstrate a unique circRNA profile in adult PAE rats without injury; 18 circRNAs in blood and 32 spinal circRNAs were differentially regulated. Following minor nerve injury, more than 100 differentially regulated spinal circRNAs were observed in allodynic PAE rats. Bioinformatic analysis identified that the parental genes of these circRNAs are linked to the NF-κB complex, a central transcription factor for pain-relevant proinflammatory cytokines. Quantitative real-time PCR was employed to measure levels of selected circRNAs and linear mRNA isoforms. We have validated that circVopp1 was significantly downregulated in blood leukocytes in PAE rats, concurrent with downregulation of Vopp1 mRNA levels. Spinal circVopp1 levels were upregulated in PAE rats, regardless of nerve injury. Additionally, PAE downregulated levels of circItch and circRps6ka3, which are linked to immune regulation. These results demonstrate that PAE exerts long-lasting dysregulation of circRNA expression in blood leukocytes and the spinal cord. Moreover, the spinal circRNA expression profile following peripheral nerve injury is differentially modulated by PAE, potentially contributing to PAE-induced neuroimmune dysregulation.
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Hao Z, Yang Y, Xu D, Feng H, Li K, Ji C, Li M, Zhang H. Over-expression of hsa_circ_0088214 suppresses tumor progression by inhibiting Akt signaling pathway in osteosarcoma. J Orthop Surg Res 2023; 18:385. [PMID: 37237370 DOI: 10.1186/s13018-023-03873-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/22/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND To explore the effect of has_circ_0088214 in osteosarcoma cells and corresponding mechanisms. METHODS Osteosarcoma cell line MG63 and U2OS were selected in this study. Wound-healing and matrigel transwell assays were performed to detect migration and invasion capacities. CCK-8 assay was used to measure cell growth and cisplatin resistance. Cell apoptosis was observed by Hoechst 33342 staining after H2O2 induce. Western Blot was used to detect protein expression level. The rescue experiments were also performed using an Akt activator SC79. RESULTS Hsa_circ_0088214 was down-regulated in osteosarcoma cells compared to normal osteoblast cells. Over-expression of has_circ_0088214 significantly reduced osteosarcoma cells invasion, migration and resistance to cisplatin, but the apoptotic ratio was increased. The phosphorylation level of Akt could be regulated by hsa_circ_0088214, and rescue experiments proved Akt signaling pathway took part in above biological processes. CONCLUSION Up-regulation of hsa_circ_0088214 suppresses invasion, migration, cisplatin resistance but promoting apoptosis induced by H2O2 by inhibiting Akt signaling pathway in osteosarcoma.
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Affiliation(s)
- Zhiwei Hao
- Department of Orthopaedics, Liaocheng People's Hospital, No 67 Dongchang West Road, Liaocheng City, 252000, Shandong Province, People's Republic of China
| | - Yiqun Yang
- Department of Orthopaedics, Liaocheng People's Hospital, No 67 Dongchang West Road, Liaocheng City, 252000, Shandong Province, People's Republic of China
| | - Daxia Xu
- Department of Orthopaedics, Liaocheng People's Hospital, No 67 Dongchang West Road, Liaocheng City, 252000, Shandong Province, People's Republic of China
| | - Hongyong Feng
- Department of Orthopaedics, Liaocheng People's Hospital, No 67 Dongchang West Road, Liaocheng City, 252000, Shandong Province, People's Republic of China
| | - Kunpeng Li
- Department of Orthopaedics, Liaocheng People's Hospital, No 67 Dongchang West Road, Liaocheng City, 252000, Shandong Province, People's Republic of China
| | - Changbin Ji
- Department of Orthopaedics, Liaocheng People's Hospital, No 67 Dongchang West Road, Liaocheng City, 252000, Shandong Province, People's Republic of China
| | - Man Li
- Department of Cardiology, Liaocheng People's Hospital, No 67 Dongchang West Road, Liaocheng City, 252000, Shandong Province, People's Republic of China
| | - Honglei Zhang
- Department of Orthopaedics, Liaocheng People's Hospital, No 67 Dongchang West Road, Liaocheng City, 252000, Shandong Province, People's Republic of China.
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20
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Sun K, Yao H, Zhang P, Sun Y, Ma J, Xia Q. Emerging landscape of circFNDC3B and its role in human malignancies. Front Oncol 2023; 13:1097956. [PMID: 36793611 PMCID: PMC9924128 DOI: 10.3389/fonc.2023.1097956] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/06/2023] [Indexed: 01/31/2023] Open
Abstract
In recent years, more attention has been paid to expanding the abundance of Circular RNAs (circRNAs), while the circRNAs that have been found to have significant functions have not been studied in different diseases. CircFNDC3B is one of the most researched circRNAs generated from fibronectin type III domain-containing protein 3B (FNDC3B) gene. Accumulating researches have reported the multiple functions of circFNDC3B in different cancer types and other non-neoplastic diseases, and predicted that circFNDC3B might be a potential biomarker. Notably, circFNDC3B can play roles in different diseases by binding to various microRNAs (miRNAs), binding to RNA-binding proteins (RBPs), or encoding functional peptides. This paper systematically summarizes the biogenesis and function of circRNAs, reviews and discusses the roles and molecular mechanisms of circFNDC3B and its target genes in different cancers and non-neoplastic diseases, which will do favor to broaden our comprehension of the function of circRNAs and facilitate subsequent research on circFNDC3B.
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Affiliation(s)
- Kai Sun
- Department of Urology, Shandong Province Hospital, Shandong University, Jinan, China
| | - Huibao Yao
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Peizhi Zhang
- Department of Urology, Shandong Province Hospital, Shandong University, Jinan, China
| | - Yanning Sun
- Department of Urology, Shandong Province Hospital, Shandong University, Jinan, China
| | - Jian Ma
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Qinghua Xia
- Department of Urology, Shandong Province Hospital, Shandong University, Jinan, China
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21
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Circ_0136474 promotes the progression of osteoarthritis by sponging mir-140-3p and upregulating MECP2. J Mol Histol 2023; 54:1-12. [PMID: 36435914 DOI: 10.1007/s10735-022-10100-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 08/22/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) have pivotal roles in the progression of many diseases, including osteoarthritis (OA). The detained function and regulatory mechanism of circ_0136474 in OA are still largely unknown. METHODS The chondrocytes (CHON-001 cells) were exposed to interleukin-1 beta (IL-1β) to mimic the injury in OA. The expression levels of circ_0136474, microRNA-140-3p (miR-140-3p), methyl-CpG-binding protein 2 (MECP2) mRNA were measured by qRT-PCR. Cell proliferation was assessed using CCK-8 assay. Flow cytometry was employed for measuring cell apoptosis. All protein levels were evaluated via western blot analysis. ELISA was used for detecting the concentrations of the inflammatory cytokines. Dual-luciferase reporter analysis and RNA Immunoprecipitation analysis were conducted for confirming the association between miR-140-3p and circ_0136474 or MECP2. RESULTS Circ_0136474 was upregulated in IL-1β-induced CHON-001 cells and OA cartilage tissues. Circ_0136474 deficiency alleviated IL-1β-stimulated CHON-001 cell damage via enhancing cell proliferation and reducing extracellular matrix (ECM) degradation, apoptosis, and inflammation. Circ_0136474 was a sponge of miR-140-3p, and miR-140-3p inhibition reversed the roles of circ_0136474 knockdown in IL-1β-treated CHON-001 cells. Moreover, miR-140-3p directly targeted MECP2, and upregulation of miR-140-3p attenuated L-1β-triggered CHON-001 cell injury via targeting MECP2. Additionally, circ_0136474 regulated MECP2 level via sponging miR-140-3p. CONCLUSION Circ_0136474 knockdown alleviated IL-1β-triggered CHON-001 cell damage through modulation of miR-140-3p/MECP2 axis, indicating a new target for treatment of OA.
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22
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Koffler-Brill T, Noy Y, Avraham KB. The long and short: Non-coding RNAs in the mammalian inner ear. Hear Res 2023; 428:108666. [PMID: 36566643 PMCID: PMC9883734 DOI: 10.1016/j.heares.2022.108666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 10/21/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Non-coding RNAs (ncRNAs) play a critical role in the entire body, and their mis-regulation is often associated with disease. In parallel with the advances in high-throughput sequencing technologies, there is a great deal of focus on this broad class of RNAs. Although these molecules are not translated into proteins, they are now well established as significant regulatory components in many biological pathways and pathological conditions. ncRNAs can be roughly divided into two main sub-groups based on the length of the transcript, with both the small and long non-coding RNAs having diverse regulatory functions. The smaller length group includes ribosomal RNAs (rRNA), transfer RNAs (tRNA), small nuclear RNAs (snRNA), small nucleolar RNAs (snoRNA), microRNAs (miRNA), small interfering RNAs (siRNA), and PIWI-associated RNAs (piRNA). The longer length group includes linear long non-coding RNAs (lncRNA) and circular RNAs (circRNA). This review is designed to present the different classes of small and long ncRNA molecules and describe some of their known roles in physiological and pathological conditions, as well as methods used to assess the validity and function of miRNAs and lncRNAs, with a focus on their role and functions in the inner ear, hearing and deafness.
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Affiliation(s)
- Tal Koffler-Brill
- Department of Human Molecular Genetics and Biochemistry, Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Yael Noy
- Department of Human Molecular Genetics and Biochemistry, Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Karen B Avraham
- Department of Human Molecular Genetics and Biochemistry, Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 6997801, Israel.
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Lan W, Dong Y, Zhang H, Li C, Chen Q, Liu J, Wang J, Chen YPP. Benchmarking of computational methods for predicting circRNA-disease associations. Brief Bioinform 2023; 24:6972300. [PMID: 36611256 DOI: 10.1093/bib/bbac613] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/29/2022] [Accepted: 12/11/2022] [Indexed: 01/09/2023] Open
Abstract
Accumulating evidences demonstrate that circular RNA (circRNA) plays an important role in human diseases. Identification of circRNA-disease associations can help for the diagnosis of human diseases, while the traditional method based on biological experiments is time-consuming. In order to address the limitation, a series of computational methods have been proposed in recent years. However, few works have summarized these methods or compared the performance of them. In this paper, we divided the existing methods into three categories: information propagation, traditional machine learning and deep learning. Then, the baseline methods in each category are introduced in detail. Further, 5 different datasets are collected, and 14 representative methods of each category are selected and compared in the 5-fold, 10-fold cross-validation and the de novo experiment. In order to further evaluate the effectiveness of these methods, six common cancers are selected to compare the number of correctly identified circRNA-disease associations in the top-10, top-20, top-50, top-100 and top-200. In addition, according to the results, the observation about the robustness and the character of these methods are concluded. Finally, the future directions and challenges are discussed.
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Affiliation(s)
- Wei Lan
- School of Computer, Electronic and Information and Guangxi Key Laboratory of Multimedia Communications and Network Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Yi Dong
- School of Computer, Electronic and Information and Guangxi Key Laboratory of Multimedia Communications and Network Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Hongyu Zhang
- School of Computer, Electronic and Information and Guangxi Key Laboratory of Multimedia Communications and Network Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Chunling Li
- School of Computer, Electronic and Information and Guangxi Key Laboratory of Multimedia Communications and Network Technology, Guangxi University, Nanning, Guangxi 530004, China
| | - Qingfeng Chen
- School of Computer, Electronic and Information and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi 530004, China
| | - Jin Liu
- Hunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Jianxin Wang
- Hunan Provincial Key Lab on Bioinformatics, School of Computer Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Yi-Ping Phoebe Chen
- Department of Computer Science and Information Technology, La Trobe University, Melbourne, Victoria 3086, Australia
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24
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Recent insights into the roles of circular RNAs in human brain development and neurologic diseases. Int J Biol Macromol 2023; 225:1038-1048. [PMID: 36410538 DOI: 10.1016/j.ijbiomac.2022.11.166] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 11/16/2022] [Indexed: 11/20/2022]
Abstract
Circular RNAs (circRNAs) are a novel class of non-coding RNAs. They are single-stranded RNA transcripts characterized with a closed loop structure making them resistant to degrading enzymes. Recently, circRNAs have been suggested with regulatory roles in gene expression involved in controlling various biological processes. Notably, they have demonstrated abundance, dynamic expression, back-splicing events, and spatiotemporally regulation in the human brain. Accordingly, they are expected to be involved in brain functions and related diseases. Studies in animals and human brain have revealed differential expression of circRNAs in brain compartments. Interestingly, contributing roles of circRNAs in the regulation of central nervous system (CNS) development have been demonstrated in a number of studies. It has been proposed that circRNAs play role in substantial neurological functions like neurotransmitter-associated tasks, neural cells maturation, and functions of synapses. Furthermore, 3 main pathways have been identified in association with circRNAs's host genes including axon guidance, Wnt signaling, and transforming growth factor beta (TGF-β) signaling pathways, which are known to be involved in substantial functions like migration and differentiation of neurons and specification of axons, and thus play role in brain development. In this review, we have an overview to the biogenesis, biological functions of circRNAs, and particularly their roles in human brain development and the pathogenesis of neurodegenerative diseases including Alzheimer's diseases, multiple sclerosis, Parkinson's disease and brain tumors.
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Ai K, Yi L, Wang Y, Li Y. CircRNA_33702 Promotes Renal Fibrosis by Targeting the miR-29b-3p/WNT1-Inducible Signaling Pathway Protein 1 Pathway. J Pharmacol Exp Ther 2023; 384:61-71. [PMID: 36153002 DOI: 10.1124/jpet.122.001280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/11/2022] [Accepted: 08/04/2022] [Indexed: 12/27/2022] Open
Abstract
Growing evidence suggest that circular RNAs (circRNAs) are critical mediators in renal diseases. However, there have been very few reports about the role of circRNAs in renal fibrosis. In this study, circRNA_33702 was found to be upregulated, both in unilateral ureteral obstruction (UUO) mice and in TGF-β1-treated Boston University mouse proximal tubule cells. Furthermore, hsa_circ_0026331, homologous with mmu_circ_33702, was found to be upregulated in TGF-β1-treated HK-2 cells. Although knockdown of circRNA_33702 or hsa_circ_0026331 was shown to relieve the TGF-β1-induced expression of collagen I, collagen III, and fibronectin, overexpression of circRNA_33702 was found to exert an inhibitory effect on the expression of the same genes. Mechanistically, circRNA_33702 was demonstrated to bind directly with miR-29b-3p and inhibit its expression. MiR-29b-3p mimic was shown to inhibit the TGF-β1-induced expression of collagen I, collagen III, and fibronectin. Moreover, WNT1-inducible signaling pathway protein 1 (WISP1) was identified as a target of miR-29b-3p, and the expression of WISP1 was observed to be repressed by miR-29b-3p. Notably, knockdown of circRNA_33702 was found to attenuate the expression of collagen I, collagen III, and fibronectin by inhibiting the expression of WISP1, and the observed inhibitory effect can be reversed by miR-29b-3p inhibitor. Finally, inhibition of circRNA_33702 was shown to attenuate interstitial fibrosis in UUO mice via the miR-29b-3p/WISP1 axis. In general, our data show that circRNA_33702 may promote renal fibrosis via the miR-29b-3p/WISP1 axis, which may potentially be developed as a new therapeutic target. SIGNIFICANCE STATEMENT: This study's findings suggested that circRNA_33702 plays a profibrosis role and that circRNA_33702 with the homologous human hsa_circ_0026331 may be a novel therapeutic target of renal fibrosis.
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Affiliation(s)
- Kai Ai
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Lei Yi
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Yinhuai Wang
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Yuan Li
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
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Shi X, Li P, Wu X, Shu J. Whole-transcriptome sequencing identifies key differentially expressed circRNAs/lncRNAs/miRNAs/mRNAs and linked ceRNA networks in adult degenerative scoliosis. Front Mol Neurosci 2023; 16:1038816. [PMID: 37063366 PMCID: PMC10098162 DOI: 10.3389/fnmol.2023.1038816] [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: 09/07/2022] [Accepted: 02/10/2023] [Indexed: 04/18/2023] Open
Abstract
Background Adult degenerative scoliosis (ADS) is forecast to be a prevalent disabling condition in an aging society. Universally, its pathogenesis is perceived as intervertebral disc degeneration (IDD), however, a thought-provoking issue is why precisely a subset of patients with disc degeneration develop ADS. Exploring the diversities between common IDD and ADS would contribute to unraveling the etiological mechanisms of ADS. Therefore, we aimed to integrate the circRNA, lncRNA, miRNA, and mRNA expression profiles from normal adults (Normal), patients with lumbar disc herniation (LDH), and ADS by whole transcriptome sequencing, which identifies critical functional ncRNA and ceRNA networks and crosstalk between the various transcripts. Methods The fresh whole blood samples (n = 3/group) were collected from ADS patients, LDH patients, and healthy volunteers (Normal group), which were examined for mRNA, miRNA, lncRNA, and circRNA expression and screened for differentially expressed (DE) ncRNAs. Then, Gene Ontology (GO) and KEGG analyses were performed for gene annotation and enrichment pathways on the DE RNAs, which were constructed as a lncRNA-miRNA-mRNA network. Eventually, DE RNAs were validated by qRT-PCR targeting disc nucleus pulposus (NP) tissue in ADS and LDH group (n = 10/group). Results Compared to the LDH group, we identified 3322 DE mRNAs, 221 DE lncRNAs, 20 DE miRNAs, and 15 DE circRNAs in the ADS. In contrast to Normal, 21 miRNAs and 19 circRNAs were differentially expressed in the ADS. The expression of multiple differentially expressed ncRNAs was confirmed by qRT-PCR analysis to be consistent with the sequencing results. In addition, GO, and KEGG analysis demonstrated that most DE mRNAs and ncRNAs target genes are involved in various biological processes, including Endocytosis, Apoptosis, Rap1 signaling pathway, Notch signaling pathway, and others. The constructed lncRNA-miRNA-mRNA co-expression network was primarily related to angiogenesis and regulation. Conclusion By focusing on comparing asymmetric and symmetric disc degeneration, whole-transcriptome sequencing and bioinformatics analysis systematically screened for key ncRNAs in the development of ADS, which provided an abundance of valuable candidates for the elucidation of regulatory mechanisms. The DE ncRNAs and the lncRNA-miRNA-mRNA network are intrinsically involved in the regulation of mediator and angiogenesis, which may contribute to the insight into the pathogenesis of ADS.
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Affiliation(s)
- Xin Shi
- The Second Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, China
- Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Panpan Li
- The Second Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, China
- Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany
- *Correspondence: Panpan Li,
| | - Xiang Wu
- The Second Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, China
| | - Jun Shu
- The Second Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, China
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Kannampuzha S, Ravichandran M, Mukherjee AG, Wanjari UR, Renu K, Vellingiri B, Iyer M, Dey A, George A, Gopalakrishnan AV. The mechanism of action of non-coding RNAs in placental disorders. Biomed Pharmacother 2022; 156:113964. [DOI: 10.1016/j.biopha.2022.113964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
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Almuhayawi MS, Al Jaouni SK, Selim S, Alkhalifah DHM, Marc RA, Aslam S, Poczai P. Integrated Pangenome Analysis and Pharmacophore Modeling Revealed Potential Novel Inhibitors against Enterobacter xiangfangensis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192214812. [PMID: 36429532 PMCID: PMC9691136 DOI: 10.3390/ijerph192214812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 06/02/2023]
Abstract
Enterobacter xiangfangensis is a novel, multidrug-resistant pathogen belonging to the Enterobacter genus and has the ability to acquire resistance to multiple antibiotic classes. However, there is currently no registered E. xiangfangensis drug on the market that has been shown to be effective. Hence, there is an urgent need to identify novel therapeutic targets and effective treatments for E. xiangfangensis. In the current study, a bacterial pan genome analysis and subtractive proteomics approach was employed to the core proteomes of six strains of E. xiangfangensis using several bioinformatic tools, software, and servers. However, 2611 nonredundant proteins were predicted from the 21,720 core proteins of core proteome. Out of 2611 nonredundant proteins, 372 were obtained from Geptop2.0 as essential proteins. After the subtractive proteomics and subcellular localization analysis, only 133 proteins were found in cytoplasm. All cytoplasmic proteins were examined using BLASTp against the virulence factor database, which classifies 20 therapeutic targets as virulent. Out of these 20, 3 cytoplasmic proteins: ferric iron uptake transcriptional regulator (FUR), UDP-2,3diacylglucosamine diphosphatase (UDP), and lipid-A-disaccharide synthase (lpxB) were chosen as potential drug targets. These drug targets are important for bacterial survival, virulence, and growth and could be used as therapeutic targets. More than 2500 plant chemicals were used to molecularly dock these proteins. Furthermore, the lowest-binding energetic docked compounds were found. The top five hit compounds, Adenine, Mollugin, Xanthohumol C, Sakuranetin, and Toosendanin demonstrated optimum binding against all three target proteins. Furthermore, molecular dynamics simulations and MM/GBSA analyses validated the stability of ligand-protein complexes and revealed that these compounds could serve as potential E. xiangfangensis replication inhibitors. Consequently, this study marks a significant step forward in the creation of new and powerful drugs against E. xiangfangensis. Future studies should validate these targets experimentally to prove their function in E. xiangfangensis survival and virulence.
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Affiliation(s)
- Mohammed S. Almuhayawi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Soad K. Al Jaouni
- Department of Hematology/Oncology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi Arabia
| | - Dalal Hussien M. Alkhalifah
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Romina Alina Marc
- Food Engineering Department, Faculty of Food Science and Technology, University of Agricultural Science and Veterinary Medicine Cluj-Napoca, 3-5 Calea Mănă ¸stur Street, 400372 Cluj-Napoca, Romania
| | - Sidra Aslam
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Punjab 38000, Pakistan
- Banner Sun Health Research Institute, Sun City, AZ 85351, USA
| | - Peter Poczai
- Botany Unit, Finnish Museum of Natural History, University of Helsinki, P.O. Box 7, FI-00014 Helsinki, Finland
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Zhang S, Jiang E, Kang Z, Bi Y, Liu H, Xu H, Wang Z, Lei C, Chen H, Lan X. CircRNA Profiling Reveals an Abundant circBDP1 that Regulates Bovine Fat Development by Sponging miR-181b/miR-204 Targeting Sirt1/TRARG1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14312-14328. [PMID: 36269615 DOI: 10.1021/acs.jafc.2c05939] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The proliferation and differentiation of preadipocytes is an important factor determining bovine fat development, which is closely related to the feed conversion ratio, carcass traits, and beef quality. The purpose of this study was to identify the effects of candidate circRNA and miRNA on the proliferation and differentiation of bovine preadipocytes in order to provide basic materials for molecular breeding in cattle. circRNA sequencing was performed on bovine adipocyte samples at different differentiation time points, and a total of 1830 differentially expressed circRNAs were identified. Among them, circBDP1, derived from the bovine BDP1 gene, has potential binding sites for miR-204 (known as a regulator of bovine fat development) and miR-181b, which gives us a hint that circBDP1 may regulate bovine fat development by adsorbing miR-204 and miR-181b. Here, our results revealed that circBDP1 overexpression promoted the proliferation and differentiation of bovine preadipocytes. The miRNA profile of bovine adipocytes at different differentiation time points was also analyzed using the small RNA sequencing method, and a total of 89 differentially expressed miRNAs were identified, including miR-204 and miR-181b. As expected, dual-luciferase reporter results showed that circBDP1 competitively adsorbed miR-181b and miR-204. Overexpression and interference of miR-181b in bovine preadipocytes and 3T3-L1 showed that miR-181b promoted the proliferation and differentiation of preadipocytes. Further results displayed that miR-181b and miR-204 simultaneously targeted the SIRT1 gene, and miR-204 also targeted the 3' UTR region of the TRARG1 gene. In summary, this study found that miR-181b and miR-204 were involved in fat development by targeting SIRT1 and TRARG1. The results of this study will lay a foundation for the research of fat development and beef cattle industry.
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Affiliation(s)
- Sihuan Zhang
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
- College of Animal Science and Technology, Anhui Agricultural University, Hefei230036, P.R. China
| | - Enhui Jiang
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
| | - Zihong Kang
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing100193, China
| | - Yi Bi
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
| | - Hongfei Liu
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing100193, China
| | - Han Xu
- School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong510006, China
| | - Zhen Wang
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing100193, China
| | - Chuzhao Lei
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
| | - Hong Chen
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
| | - Xianyong Lan
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi712100, China
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Zhang C, Gao R, Zhou R, Chen H, Liu C, Zhu T, Chen C. The emerging power and promise of non-coding RNAs in chronic pain. Front Mol Neurosci 2022; 15:1037929. [PMID: 36407760 PMCID: PMC9668864 DOI: 10.3389/fnmol.2022.1037929] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 10/07/2022] [Indexed: 08/26/2023] Open
Abstract
Chronic pain (CP) is an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage lasting longer than 3 months. CP is the main reason why people seek medical care and exerts an enormous economic burden. Genome-wide expression analysis has revealed that diverse essential genetic elements are altered in CP patients. Although many possible mechanisms of CP have been revealed, we are still unable to meet all the analgesic needs of patients. In recent years, non-coding RNAs (ncRNAs) have been shown to play essential roles in peripheral neuropathy and axon regeneration, which is associated with CP occurrence and development. Multiple key ncRNAs have been identified in animal models of CP, such as microRNA-30c-5p, ciRS-7, and lncRNA MRAK009713. This review highlights different kinds of ncRNAs in the regulation of CP, which provides a more comprehensive understanding of the pathogenesis of the disease. It mainly focuses on the contributions of miRNAs, circRNAs, and lncRNAs to CP, specifically peripheral neuropathic pain (NP), diabetic NP, central NP associated with spinal cord injury, complex regional pain syndrome, inflammatory pain, and cancer-induced pain. In addition, we summarize some potential ncRNAs as novel biomarkers for CP and its complications. With an in-depth understanding of the mechanism of CP, ncRNAs may provide novel insight into CP and could become new therapeutic targets in the future.
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Affiliation(s)
- Changteng Zhang
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Rui Gao
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Ruihao Zhou
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Hai Chen
- Department of Respiratory and Critical Care Medicine, West China Medical School/West China Hospital, Sichuan University, Chengdu, China
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Changliang Liu
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Zhu
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Chan Chen
- Department of Anesthesiology and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
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Rahmani-Kukia N, Abbasi A. New insights on circular RNAs and their potential applications as biomarkers, therapeutic agents, and preventive vaccines in viral infections: with a glance at SARS-CoV-2. MOLECULAR THERAPY - NUCLEIC ACIDS 2022; 29:705-717. [PMID: 35992045 PMCID: PMC9375856 DOI: 10.1016/j.omtn.2022.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The occurrence of viral infections and approaches to handling them are very challenging and require prompt diagnosis and timely treatment. Recently, genomic medicine approaches have come up with the discovery of the competing endogenous RNA (ceRNA) network, including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs) on the basis of gene silencing. CircRNAs, as a group of non-encoded RNAs, make a loop-like structure by back-splicing through 3′ and 5′ ends. They are stable, abundant, specific, and highly conserved and can be quickly generated at large scales in vitro. CircRNAs have the potential to contribute in several cellular processes in a way that some serve as microRNA sponges, cellular transporters, protein-binding RNAs, transcriptional regulators, and immune system modulators. CircRNAs can even play an important role in modulating antiviral immune responses. In the present review, circRNAs’ biogenesis, function, and biomarker and therapeutic potential as well as their prospective applications as vaccines against viral infections such as SARS-CoV-2 are explained. By considering their unique properties, their potential to be used as novel vaccines, biomarkers, and a therapeutic approach appears possible.
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An Overview of the Advances in Research on the Molecular Function and Specific Role of Circular RNA in Cardiovascular Diseases. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5154122. [PMID: 36033554 PMCID: PMC9410782 DOI: 10.1155/2022/5154122] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/30/2022] [Accepted: 08/08/2022] [Indexed: 11/18/2022]
Abstract
In recent years, the rate of residents suffering from cardiovascular disease (CVD), disability, and death has risen significantly. The latest report on CVD in China shows that it still has the highest mortality rate of all diseases in that country. Different from linear RNA, circular RNA (circRNA) is a covalently closed transcript, mainly through reverse splicing so that the 3′end and the 5′end are covalently connected to form a closed loop structure. It is structurally stable and abundant and has distinct tissue or cell specificity, and it is widely distributed in eukaryotes. Although circRNAs were discovered many years ago, researchers have only recently begun to slowly discover their extensive expression and regulatory functions in various biological processes. Studies have found that some circRNAs perform multiple functions in cells more used as RNA binding protein or microRNA sponge. In addition, accumulating evidence shows that the first change that occurs in patients with various metabolic diseases such as hypertension and cardiovascular disease is dysregulated circRNA expression. For cardiovascular and other related blood vessels, circRNA is one of the important causes of various complications. These findings contribute to a more comprehensive understanding and grasp of CVD, and the related molecular mechanisms of CVD should be further analyzed. Here, we review the new understanding of circRNAs in CVD and explain the role of these innovative biomarkers in the analysis and determination of other related cardiovascular events such as coronary heart disease. Thus, this study is aimed at providing new ideas and proposing more feasible medical research strategies based on circRNA.
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Sohn EJ. Differentially expression and function of circular RNAs in ovarian cancer stem cells. J Ovarian Res 2022; 15:97. [PMID: 35978436 PMCID: PMC9382745 DOI: 10.1186/s13048-022-01014-z] [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: 09/08/2021] [Accepted: 06/27/2022] [Indexed: 11/16/2022] Open
Abstract
Background Circular RNAs (circRNAs) are noncoding RNAs that regulate miRNA expression; however, their functions in cancer stem cells (CSCs) are not well known. Methods To determine the function of differentially expression of circRNAs associated with ovarian CSCs, circRNA profiling was conducted using a circRNA-based microarray on sphere-forming cells derived from A2780 and SKOV3 epithelial ovarian cancer cells termed A2780-SP and SKOV3-SP compared to monolayer cells such as A2780 and SKOV3 cells, respectively. Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed to predict the biological functions of the circRNAs expressed in CSCs. Results The circRNA-based microarray data showed that 159 circRNAs were significantly upregulated (fold change > 1.5) and 55 circRNAs were downregulated in ovarian CSCs compared to monolayer cells. GO and KEGG enrichment analysis of differentially expressed circRNAs in ovarian CSCs showed that they were mainly involved in cell cycle, histone modification, cellular protein metabolic process, cell cycle, apoptotic signaling pathway, and ubiquitin-mediated proteolysis in ovarian cancer. In addition, the hsa-circRNA000963-miRNA-mRNA regulatory network was constructed based on potential target of miRNAs. These analyses involved that the biological function of the hsa-circRNA00096/miRNA/mRNA network was involved in signaling pathways regulating pluripotency of stem cells, PI3K-Akt signaling pathway, cell cycle, p53 signaling pathway, Wnt signaling pathway, calcium modulating pathway, and production of miRNAs involved in gene silencing by miRNA. Conclusions Our data demonstrate the expression profiles of circRNAs in ovarian CSCs and suggest that circRNAs may be potential diagnostic and predictive biomarkers of ovarian cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s13048-022-01014-z.
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Affiliation(s)
- Eun Jung Sohn
- Pusan National University, Yangsan, 50612, Republic of Korea.
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Paskeh MDA, Entezari M, Mirzaei S, Zabolian A, Saleki H, Naghdi MJ, Sabet S, Khoshbakht MA, Hashemi M, Hushmandi K, Sethi G, Zarrabi A, Kumar AP, Tan SC, Papadakis M, Alexiou A, Islam MA, Mostafavi E, Ashrafizadeh M. Emerging role of exosomes in cancer progression and tumor microenvironment remodeling. J Hematol Oncol 2022; 15:83. [PMID: 35765040 PMCID: PMC9238168 DOI: 10.1186/s13045-022-01305-4] [Citation(s) in RCA: 192] [Impact Index Per Article: 96.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 06/13/2022] [Indexed: 12/14/2022] Open
Abstract
Cancer is one of the leading causes of death worldwide, and the factors responsible for its progression need to be elucidated. Exosomes are structures with an average size of 100 nm that can transport proteins, lipids, and nucleic acids. This review focuses on the role of exosomes in cancer progression and therapy. We discuss how exosomes are able to modulate components of the tumor microenvironment and influence proliferation and migration rates of cancer cells. We also highlight that, depending on their cargo, exosomes can suppress or promote tumor cell progression and can enhance or reduce cancer cell response to radio- and chemo-therapies. In addition, we describe how exosomes can trigger chronic inflammation and lead to immune evasion and tumor progression by focusing on their ability to transfer non-coding RNAs between cells and modulate other molecular signaling pathways such as PTEN and PI3K/Akt in cancer. Subsequently, we discuss the use of exosomes as carriers of anti-tumor agents and genetic tools to control cancer progression. We then discuss the role of tumor-derived exosomes in carcinogenesis. Finally, we devote a section to the study of exosomes as diagnostic and prognostic tools in clinical courses that is important for the treatment of cancer patients. This review provides a comprehensive understanding of the role of exosomes in cancer therapy, focusing on their therapeutic value in cancer progression and remodeling of the tumor microenvironment.
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Affiliation(s)
- Mahshid Deldar Abad Paskeh
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.,Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.,Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sepideh Mirzaei
- Department of Biology, Faculty of Science, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Amirhossein Zabolian
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Hossein Saleki
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohamad Javad Naghdi
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sina Sabet
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Amin Khoshbakht
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.,Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Kiavash Hushmandi
- Division of Epidemiology, Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore.,NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, 34396, Istanbul, Turkey
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore.,NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Shing Cheng Tan
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
| | - Marios Papadakis
- Department of Surgery II, University Hospital Witten-Herdecke, University of Witten-Herdecke, Heusnerstrasse 40, 42283, Wuppertal, Germany.
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, Australia.,AFNP Med Austria, Vienna, Austria
| | - Md Asiful Islam
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia.,Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, B15 2TT, UK
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Milad Ashrafizadeh
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla, Istanbul, Turkey.
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Circ_ROBO2/miR-186-5p/TRIM14 axis regulates oxidized low-density lipoprotein-induced cardiac microvascular endothelial cell injury. Regen Ther 2022; 20:138-146. [PMID: 35620639 PMCID: PMC9111929 DOI: 10.1016/j.reth.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/23/2022] [Accepted: 04/14/2022] [Indexed: 12/04/2022] Open
Abstract
Background Coronary artery disease (CAD) is one of the main risks of death, which is mainly caused by coronary arteries arteriosclerosis. Circular RNAs (circRNAs) have shown important regulatory roles in cardiovascular diseases. We amid to explore the role of circ_ROBO2 in CAD. Methods Cardiac microvascular endothelial cells (CMECs) stimulated by oxidized low-density lipoprotein (ox-LDL) were served as the cellular model of CAD. Real-time quantitative polymerase chain reaction (RT-qPCR) and western blot assay were performed to detect RNA levels and protein levels, respectively. Cell proliferation was assessed by 5-ethynyl-2′-deoxyuridine (EdU) assay and Cell Counting Kit-8 (CCK-8) assay. Flow cytometry was employed for measuring cell apoptosis. Matrigel tube formation assay was used to evaluate angiogenesis ability. The intermolecular interaction was predicted by bioinformatics analysis and verified by dual-luciferase reporter and RNA-pull down assays. Results The expression of circ_ROBO2 was upregulated in CAD patients and ox-LDL-induced CMECs. Treatment of ox-LDL suppressed cell proliferation and angiogenic ability as well as promoted the apoptosis of CMECs partly by upregulating circ_ROBO2. MicroRNA-186-5p (miR-186-5p) was identified as a target of circ_ROBO2, and circ_ROBO2 knockdown attenuated ox-LDL-induced damage in CMECs by sponging miR-186-5p. Tripartite motif containing 14 (TRIM14) acted as a target of miR-186-5p, and TRIM14 overexpression alleviated miR-186-5p-mediated inhibitory effect on ox-LDL-induced injury in CMECs. Circ_ROBO2 positively regulated TRIM14 expression by sponging miR-186-5p. Conclusion Circ_ROBO2 played a promoting role in ox-LDL-induced CMECs injury by sponging miR-186-5p and regulating TRIM14, providing a promising treatment strategy for CAD.
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Hsa_circ_0000994 Inhibits Pancreatic Cancer Progression by Clearing Immune-Related miR-27a and miR-27b. JOURNAL OF ONCOLOGY 2022; 2022:7274794. [PMID: 35669238 PMCID: PMC9166970 DOI: 10.1155/2022/7274794] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/23/2022]
Abstract
Pancreatic cancer (PC) is a common cause of cancer death. Although more and more evidences suggest that circular RNAs (circRNAs) are associated with the development of cancer, the biological function of circRNAs in PC has not been fully explored. Based on previous studies, Hsa_circ_0000994 was screened out, and its clinical significance, functional role, and mechanism in PC are poorly studied. In various cell lines, 50 PC tissues, and an equal number of normal tissues, RT-qPCR was used to identify expression level of Hsa_circ_0000994. The impact of Hsa_circ_0000994 on metastasis, cell proliferation, and apoptosis was detected using functional loss and functional gain tests. An animal study was also conducted. Underlying mechanisms of Hsa_circ_0000994 were revealed by luciferase reporter gene detection. Hsa_circ_0000994 was lowly expressed in PC tissues as well as various PC cell lines, and this low expression was closely related to cancer. In terms of functional testing, Hsa_circ_0000994 suppressed core ability of PC cells, including proliferation, migration, and invasion ability. Xenotransplantation studies further confirmed the effect of Hsa_circ_0000994 in promoting cell growth. Mechanically, Hsa_circ_0000994 inhibited miR-27a and miR-27b. Hsa_circ_0000994 inhibited the cancer cells through the effect on miR-27a and miR-27b. In summary, a circRNA with tumor suppressor effects on PC has been elucidated.
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Pinto A, Cunha C, Chaves R, Butchbach MER, Adega F. Comprehensive In Silico Analysis of Retrotransposon Insertions within the Survival Motor Neuron Genes Involved in Spinal Muscular Atrophy. BIOLOGY 2022; 11:824. [PMID: 35741345 PMCID: PMC9219815 DOI: 10.3390/biology11060824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022]
Abstract
Transposable elements (TEs) are interspersed repetitive and mobile DNA sequences within the genome. Better tools for evaluating TE-derived sequences have provided insights into the contribution of TEs to human development and disease. Spinal muscular atrophy (SMA) is an autosomal recessive motor neuron disease that is caused by deletions or mutations in the Survival Motor Neuron 1 (SMN1) gene but retention of its nearly perfect orthologue SMN2. Both genes are highly enriched in TEs. To establish a link between TEs and SMA, we conducted a comprehensive, in silico analysis of TE insertions within the SMN1/2 loci of SMA, carrier and healthy genomes. We found an Alu insertion in the promoter region and one L1 element in the 3'UTR that may play an important role in alternative promoter as well as in alternative transcriptional termination. Additionally, several intronic Alu repeats may influence alternative splicing via RNA circularization and causes the presence of new alternative exons. These Alu repeats present throughout the genes are also prone to recombination events that could lead to SMN1 exons deletions and, ultimately, SMA. TE characterization of the SMA genomic region could provide for a better understanding of the implications of TEs on human disease and genomic evolution.
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Affiliation(s)
- Albano Pinto
- Laboratory of Cytogenomics and Animal Genomics (CAG), Department of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (A.P.); (C.C.); (R.C.)
- BioISI-Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisbon, Portugal
| | - Catarina Cunha
- Laboratory of Cytogenomics and Animal Genomics (CAG), Department of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (A.P.); (C.C.); (R.C.)
- BioISI-Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisbon, Portugal
| | - Raquel Chaves
- Laboratory of Cytogenomics and Animal Genomics (CAG), Department of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (A.P.); (C.C.); (R.C.)
- BioISI-Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisbon, Portugal
| | - Matthew E. R. Butchbach
- Division of Neurology, Nemours Children’s Hospital Delaware, Wilmington, DE 19803, USA;
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
- Department of Pediatrics, Sidney Kimmel College of Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Filomena Adega
- Laboratory of Cytogenomics and Animal Genomics (CAG), Department of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal; (A.P.); (C.C.); (R.C.)
- BioISI-Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisbon, Portugal
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Najafi S. Circular RNAs as emerging players in cervical cancer tumorigenesis; A review to roles and biomarker potentials. Int J Biol Macromol 2022; 206:939-953. [PMID: 35318084 DOI: 10.1016/j.ijbiomac.2022.03.103] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/08/2022] [Accepted: 03/16/2022] [Indexed: 01/10/2023]
Abstract
Cervical cancer is the most lethal gynecological cancer among women worldwide. Most of the patients are diagnosed at the advanced stages due to late diagnosis and lack of accessible and valuable approaches for early detection of the disease. Circular RNAs (circRNAs) are a distinguishable class of non-coding RNAs with characteristic loop structures. Although their function has not been completely elucidated; however, recent evidence has suggested regulatory functions for circRNAs on gene expression controlling various biological functions like cell growth and apoptosis, development, embryogenesis, and pathogenesis of human diseases particularly cancers. Studies show the role of dysregulated circRNAs in biological processes including cell proliferation, migration, invasion, apoptosis, angiogenesis, and chemoresistance contributing to affect tumorigenesis in ovarian cancer cells, animal, and clinical studies. These effects can be defined as consistent with several tumorigenesis characteristics, which are defined as "hallmarks of cancer". Additionally, dysregulated circRNAs exhibit prognostic, and diagnostic potentials both in the prediction of prognosis in ovarian cancer patients, and also their discrimination from healthy individuals. Furthermore, targeting circRNAs has shown positive results in the suppression of malignant features of cancer cells, and also in overcoming chemoresistance. In this review, I have gathered the majority of studies evaluating the role of circRNAs in the development, and progression of cervical cancer, and also have discussed prognostic, diagnostic, and therapeutic potentials of circRNAs for clinical applications in cervical cancer patients.
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Affiliation(s)
- Sajad Najafi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Yang G, Zhang Y, Lin H, Liu J, Huang S, Zhong W, Peng C, Du L. CircRNA circ_0023984 promotes the progression of esophageal squamous cell carcinoma via regulating miR-134-5p/cystatin-s axis. Bioengineered 2022; 13:10578-10593. [PMID: 35440286 PMCID: PMC9161969 DOI: 10.1080/21655979.2022.2063562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Recent studies have shown that circRNAs can act as oncogenic factors or tumor suppressors by sponging microRNAs (miRNAs). The upregulation of circ_0023984 was reported in esophageal squamous cell carcinoma (ESCC). However, its functional role in ESCC remain unclear. In the present study, circ_0023984 expression in ESCC cells and tissues were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting (WB). Subcellular fraction experiment was performed to determine relative nuclear-cytoplasmic localization. The loss-of-function effects of circ_0023984 in ESCC cell lines were investigated by shRNA-mediated knockdown. Functional assays including cell Counting Kit-8 (CCK-8), 5-Ethynyl-2’-deoxyuridine (EDU) incorporation, colony formation and Transwell migration assays were conducted to assess the malignant phenotype. The interaction between the two molecules was analyzed by RNA pull-down, luciferase reporter assay and RNA immunoprecipitation (RIP). The subcutaneous tumor model in nude mice was used to assess the role of circ-0023984 in tumorigenesis. We found that ESCC patients with high circ_0023984 expression was associated with a poor prognosis. The knockdown of circ_0023984 suppressed cell growth, invasion, and migration in ESCC cells. Circ_0023984 interacted with miR-134-5p and inhibited its activity, which promoted the expression of CST4 (Cystatin-S). Circ_0023984 also regulated tumorigenesis in a CST4-dependent manner. Together, our study indicates that the oncogenic role of Circ_0023984 is mediated by miR-134-5p/CST4 Axis in ESCC, which could serve as potential targets for future therapeutic strategies.
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Affiliation(s)
- Ge Yang
- Department of Clinical Laboratory, Affiliated Neijiang Second People's Hospital of Southwest Medical University, Neijiang, P.R, China.,Department of Clinical Laboratory, The First Affiliated Hospital of Southwest Medical University, China Neijiang
| | - Yu Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Southwest Medical University, China Neijiang
| | - Hongni Lin
- Scientific research department, Sichuan Neijiang Health Vocational College, China Neijiang
| | - Jinnbo Liu
- Department of Clinical Laboratory, The First Affiliated Hospital of Southwest Medical University, China Neijiang
| | - Shengjie Huang
- Scientific research department, Sichuan Neijiang Health Vocational College, China Neijiang
| | - Wei Zhong
- Nuclear medicine department, Affiliated Neijiang Second People's Hospital of Southwest Medical University, Neijiang, P.R, China
| | - Chao Peng
- Department of intestine surgery, Affiliated Neijiang Second People's Hospital of Southwest Medical University, Neijiang, P.R, China
| | - Lin Du
- Scientific research department, Sichuan Neijiang Health Vocational College, China Neijiang
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Almatroudi A. Non-Coding RNAs in Tuberculosis Epidemiology: Platforms and Approaches for Investigating the Genome's Dark Matter. Int J Mol Sci 2022; 23:ijms23084430. [PMID: 35457250 PMCID: PMC9024992 DOI: 10.3390/ijms23084430] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/05/2022] [Accepted: 04/14/2022] [Indexed: 02/07/2023] Open
Abstract
A growing amount of information about the different types, functions, and roles played by non-coding RNAs (ncRNAs) is becoming available, as more and more research is done. ncRNAs have been identified as potential therapeutic targets in the treatment of tuberculosis (TB), because they may be essential regulators of the gene network. ncRNA profiling and sequencing has recently revealed significant dysregulation in tuberculosis, primarily due to aberrant processes of ncRNA synthesis, including amplification, deletion, improper epigenetic regulation, or abnormal transcription. Despite the fact that ncRNAs may have a role in TB characteristics, the detailed mechanisms behind these occurrences are still unknown. The dark matter of the genome can only be explored through the development of cutting-edge bioinformatics and molecular technologies. In this review, ncRNAs' synthesis and functions are discussed in detail, with an emphasis on the potential role of ncRNAs in tuberculosis. We also focus on current platforms, experimental strategies, and computational analyses to explore ncRNAs in TB. Finally, a viewpoint is presented on the key challenges and novel techniques for the future and for a wide-ranging therapeutic application of ncRNAs.
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Affiliation(s)
- Ahmad Almatroudi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah 51452, Saudi Arabia
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The role of circular RNAs in pancreatic cancer: new players in tumorigenesis and potential biomarkers. Pathol Res Pract 2022; 232:153833. [DOI: 10.1016/j.prp.2022.153833] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/21/2022] [Accepted: 03/01/2022] [Indexed: 12/23/2022]
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Wang X, Ma C, Hou X, Zhang G, Huang Y. Circular RNA circ_0002984 Promotes Cell Proliferation and Migration by Regulating miR-181b-5p/Vascular Endothelial Growth Factor Axis and PI3K-AKT Signaling Pathway in Oxidized Low-Density Lipoprotein-Treated Vascular Smooth Muscle Cells. J Cardiovasc Pharmacol 2022; 79:501-511. [PMID: 34954748 DOI: 10.1097/fjc.0000000000001203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 11/20/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT RNAs (circRNAs) play critical roles in many diseases, including atherosclerosis (AS). However, the role and underlying mechanism of circ_0002984 in AS remain unclear. Vascular smooth muscle cells (VSMCs) treated with oxidized low-density lipoprotein (ox-LDL) were used as a AS cell model. Quantitative real-time polymerase chain reaction was conducted to detect the expression of circ_0002984, miR-181b-5p and vascular endothelial growth factor A (VEGFA). Cell proliferation was evaluated by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl-tetrazolium bromide assay and 5-ethynyl-2'-deoxyuridine assays. Cell migration was assessed using wound healing assay and transwell assay. All protein levels were analyzed by western blot assay. The interaction between miR-181b-5p and circ_0002984 or VEGFA was confirmed by dual-luciferase reporter, RNA Immunoprecipitation, and RNA pull-down assays. Circ_0002984 and VEGFA were overexpressed, and miR-181b-5p was downregulated in serum of AS patients and ox-LDL-stimulated VSMCs. Circ_0002984 silencing inhibited ox-LDL-induced proliferation and migration in VSMCs. MiR-181b-5p was a target of circ_0002984, and miR-181b-5p inhibition counteracted the suppressing effects of circ_0002984 downregulation on proliferation and migration in ox-LDL-stimulated VSMCs. Additionally, VEGFA was a downstream target of miR-181b-5p and VEGFA upregulation abolished the suppressive influence of miR-181b-5p on proliferation and migration in ox-LDL-exposed VSMCs. Furthermore, circ_0002984 depletion blocked phosphatidylinositol 3 kinase-AKT signaling pathway by regulating miR-181b-5p and VEGFA. Circ_0002984 downregulation suppressed cell proliferation and migration by regulating miR-181b-5p/VEGFA axis and phosphatidylinositol 3 kinase-AKT pathway in ox-LDL-stimulated VEGFA, providing a new mechanism for AS pathogenesis.
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Affiliation(s)
| | - Chong Ma
- Cardiology, Heilongjiang Provincial Hospital, Haerbin City, Heilongjiang Province, China
| | | | - Ge Zhang
- Departments of Geriatric Neurology; and
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Wang J, Wen Y, Xu J, Yue B, Zhong J, Zheng L, Lei C, Chen H, Huang Y. Circ RIMKLB promotes myoblast proliferation and inhibits differentiation by sponging miR-29c to release KCNJ12. Epigenetics 2022; 17:1686-1700. [PMID: 35348434 PMCID: PMC9621043 DOI: 10.1080/15592294.2022.2058211] [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: 11/03/2022] Open
Abstract
Muscle development is a complex process that was regulated by many factors, among which non-coding RNAs (ncRNAs) play a vital role in regulating multiple life activities of muscle cells. Circular RNA (circRNA), a type of non-coding RNA with closed-loop structure, has been reported to affect multiple life processes. However, the roles of circRNAs on muscle development have not been fully elucidated. The present study aimed to determine whether and how circRIMKLB affects muscle development. Our study revealed that circRIMKLB promoted myoblast proliferation and inhibited differentiation. Besides, miR-29c was proved as a downstream target of circRIMKLB using dual-luciferase reporter assay and RNA-binding protein immunoprecipitation (RIP) assay. Also, potassium inwardly rectifying channel subfamily J member 12 (KCNJ12) was identified as a novel target of miR-29c via dual-luciferase reporter assay, quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR), and western blot. CircRIMKLB and KCNJ12 were both proved to regulate cell cycle on muscle regeneration after injury in vivo. In conclusion, we demonstrated that circRIMKLB sponged miR-29c, releasing KCNJ12 to regulate myoblast proliferation and differentiation and regulating cell cycle during muscle regeneration after injury in vivo.
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Affiliation(s)
- Jian Wang
- Shaanxi Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northwest A&f University, Yangling, Shaanxi, China
| | - Yifan Wen
- Shaanxi Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northwest A&f University, Yangling, Shaanxi, China
| | - Jiawei Xu
- Shaanxi Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northwest A&f University, Yangling, Shaanxi, China
| | - Binglin Yue
- Shaanxi Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northwest A&f University, Yangling, Shaanxi, China
| | - Jialin Zhong
- Shaanxi Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northwest A&f University, Yangling, Shaanxi, China
| | - Li Zheng
- College of Animal Science & Technology, Henan University of Animal Husbandry and Economy, Zhengzhou, Henan, China
| | - Chuzhao Lei
- Shaanxi Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northwest A&f University, Yangling, Shaanxi, China
| | - Hong Chen
- Shaanxi Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northwest A&f University, Yangling, Shaanxi, China
| | - Yongzhen Huang
- Shaanxi Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northwest A&f University, Yangling, Shaanxi, China
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LPS-inducible circAtp9b is highly expressed in osteoporosis and promotes the apoptosis of osteoblasts by reducing the formation of mature miR-17-92a. J Orthop Surg Res 2022; 17:193. [PMID: 35346278 PMCID: PMC8962610 DOI: 10.1186/s13018-022-03072-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 03/16/2022] [Indexed: 11/29/2022] Open
Abstract
Background Circular RNA circAtp9b is an enhancer of LPS-induced inflammation, which promotes osteoporosis (OS). This study explored the role of circAtp9b in OS. Methods RT-qPCR was performed to detect the expression of circAtp9b and microRNA (miR)-17-92a (both mature and premature) in OS and healthy controls. The subcellular location of circAtp9b was assessed by nuclear fractionation assay. The direct interaction between circAtp9b and premature miR-17-92a was detected by RNA pull-down assay. The role of circAtp9b in regulating the maturation of miR-17-92a in osteoblasts was explored by overexpression assay and RT-qPCR. Cell apoptosis was analyzed by cell apoptosis assay. Results OS patients exhibited upregulation of circAtp9b and premature miR-17-92a, but downregulation of mature miR-17-92a. In osteoblasts, circAtp9b suppressed the maturation of miR-17-92a. LPS upregulated circAtp9b and premature miR-17-92a, and downregulated mature miR-17-92a in osteoblasts. CircAtp9b was detected in both nucleus and cytoplasm, and it directly interacted with premature miR-17-92a. Overexpression of circAtp9b reduced the effects of miR-17-92a on the apoptosis of osteoblasts induced by LPS. Conclusion CircAtp9b is LPS-inducible and upregulation of circAtp9b in OS promotes the apoptosis of osteoblasts by reducing the formation of mature miR-17-92a. Supplementary Information The online version contains supplementary material available at 10.1186/s13018-022-03072-x.
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Dehghanian F, Azhir Z, Khalilian S, Grüning B. Non-coding RNAs underlying the pathophysiological links between type 2 diabetes and pancreatic cancer: A systematic review. J Diabetes Investig 2022; 13:405-428. [PMID: 34859606 PMCID: PMC8902405 DOI: 10.1111/jdi.13727] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/11/2021] [Accepted: 11/30/2021] [Indexed: 12/21/2022] Open
Abstract
Type 2 diabetes is known as a risk factor for pancreatic cancer (PC). Various genetic and environmental factors cause both these global chronic diseases. The mechanisms that define their relationships are complex and poorly understood. Recent studies have implicated that metabolic abnormalities, including hyperglycemia and hyperinsulinemia, could lead to cell damage responses, cell transformation, and increased cancer risk. Hence, these kinds of abnormalities following molecular events could be essential to develop our understanding of this complicated link. Among different molecular events, focusing on shared signaling pathways including metabolic (PI3K/Akt/mTOR) and mitogenic (MAPK) pathways in addition to regulatory mechanisms of gene expression such as those involved in non-coding RNAs (miRNAs, circRNAs, and lncRNAs) could be considered as powerful tools to describe this association. A better understanding of the molecular mechanisms involved in the development of type 2 diabetes and pancreatic cancer would help us to find a new research area for developing therapeutic and preventive strategies. For this purpose, in this review, we focused on the shared molecular events resulting in type 2 diabetes and pancreatic cancer. First, a comprehensive literature review was performed to determine similar molecular pathways and non-coding RNAs; then, the final results were discussed in more detail.
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Affiliation(s)
- Fariba Dehghanian
- Department of Cell and Molecular Biology and MicrobiologyFaculty of Biological Science and TechnologyUniversity of IsfahanIsfahanIran
| | - Zahra Azhir
- Department of Cell and Molecular Biology and MicrobiologyFaculty of Biological Science and TechnologyUniversity of IsfahanIsfahanIran
| | - Sheyda Khalilian
- Department of Cell and Molecular Biology and MicrobiologyFaculty of Biological Science and TechnologyUniversity of IsfahanIsfahanIran
| | - Björn Grüning
- Department of Computer ScienceBioinformatics GroupUniversity of FreiburgFreiburgGermany
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Zhao J, Yan W, Huang W, Li Y. Circ_0010235 facilitates lung cancer development and immune escape by regulating miR-636/PDL1 axis. Thorac Cancer 2022; 13:965-976. [PMID: 35167195 PMCID: PMC8977160 DOI: 10.1111/1759-7714.14338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/14/2022] [Accepted: 01/20/2022] [Indexed: 12/26/2022] Open
Abstract
Background Circular RNAs (circRNAs) are a class of important regulators in various human cancers, including lung cancer. Here, we aimed to investigate the role of circ_0010235 in lung cancer. Methods The expression of circ_0010235, microRNA‐636 (miR‐636) and PDL1 was measured by quantitative real‐time PCR (qRT‐PCR). Cell proliferation was evaluated by CCK‐8, colony formation, and 5‐ethynyl‐2′‐deoxyuridine (EdU) assays. Cell apoptosis was detected by flow cytometry. Cell invasion was assessed by transwell assay. All protein levels were determined by western blot assay. In order to detect the roles of circ_0010235 in immune escape, lung cancer cells were cocultured with peripheral blood mononuclear cells (PBMCs) or cytokine‐induced killer (CIK) cells in vitro. The relationship between miR‐636 and circ_0010235 or PDL1 was verified by dual‐luciferase reporter assay and RNA pulldown assay. Immunohistochemistry (IHC) analysis was used to detect Ki67 and programmed death‐ligand 1 (PDL1) expression. A xenograft tumor model was established to verify the function of circ_0010235 in vivo. Results Circ_0010235 was overexpressed in lung cancer. Circ_0010235 knockdown inhibited proliferation, invasion and immune escape and promoted apoptosis of lung cancer cells. MiR‐636 was a target of circ_0010235, and miR‐636 inhibition reversed the effects of circ_0010235 knockdown in lung cancer cells. PDL1 was a direct target of miR‐636, and miR‐636 suppressed the proliferation and invasion and increased apoptosis and antitumor immunity in lung cancer cells by downregulating PDL1. Moreover, circ_0010235 positively regulated PDL1 expression by sponging miR‐636. Additionally, circ_0010235 knockdown hampered tumorigenesis in vivo. Conclusion Circ_0010235 knockdown inhibited lung cancer progression and increased antitumor immunity by regulating the miR‐636/PDL1 axis.
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Affiliation(s)
- Jixing Zhao
- Department of Thoracic Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Wu Yan
- Department of Thoracic Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Wencong Huang
- Department of Thoracic Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Yongsheng Li
- Department of Thoracic Surgery, Huizhou Central People's Hospital, Huizhou, China
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Khan FA, Nsengimana B, Khan NH, Song Z, Ngowi EE, Wang Y, Zhang W, Ji S. Chimeric Peptides/Proteins Encoded by circRNA: An Update on Mechanisms and Functions in Human Cancers. Front Oncol 2022; 12:781270. [PMID: 35223470 PMCID: PMC8874284 DOI: 10.3389/fonc.2022.781270] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 01/10/2022] [Indexed: 12/30/2022] Open
Abstract
The discovery of circular RNAs and exploration of their biological functions are increasingly attracting attention in cell bio-sciences. Owing to their unique characteristics of being highly conserved, having a relatively longer half-life, and involvement in RNA maturation, transportation, epigenetic regulation, and transcription of genes, it has been accepted that circRNAs play critical roles in the variety of cellular processes. One of the critical importance of these circRNAs is the presence of small open reading frames that enable them to encode peptides/proteins. In particular, these encoded peptides/proteins mediate essential cellular activities such as proliferation, invasion, epithelial–mesenchymal transition, and apoptosis and develop an association with the development and progression of cancers by modulating diverse signaling pathways. In addition, these peptides have potential roles as biomarkers for the prognosis of cancer and are being used as drug targets against tumorigenesis. In the present review, we thoroughly discussed the biogenesis of circRNAs and their functional mechanisms along with a special emphasis on the reported chimeric peptides/proteins encoded by circRNAs. Additionally, this review provides a perspective regarding the opportunities and challenges to the potential use of circRNAs in cancer diagnosis and therapeutic targets in clinics.
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Affiliation(s)
- Faiz Ali Khan
- Laboratory of Cell Signal Transduction, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- School of Life Sciences, Henan University, Kaifeng, China
- Department of Basic Sciences Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan
| | - Bernard Nsengimana
- Laboratory of Cell Signal Transduction, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Nazeer Hussain Khan
- Laboratory of Cell Signal Transduction, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Zhenhua Song
- Laboratory of Cell Signal Transduction, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Ebenezeri Erasto Ngowi
- Laboratory of Cell Signal Transduction, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Yunyun Wang
- Laboratory of Cell Signal Transduction, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Weijuan Zhang
- Laboratory of Cell Signal Transduction, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- *Correspondence: Weijuan Zhang, ; Shaoping Ji,
| | - Shaoping Ji
- Laboratory of Cell Signal Transduction, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- *Correspondence: Weijuan Zhang, ; Shaoping Ji,
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Zhang D, Tao L, Xu N, Lu X, Wang J, He G, Tang Q, Huang K, Shen S, Chu J. CircRNA circTIAM1 promotes papillary thyroid cancer progression through the miR-646/HNRNPA1 signaling pathway. Cell Death Dis 2022; 8:21. [PMID: 35022405 PMCID: PMC8755710 DOI: 10.1038/s41420-021-00798-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/07/2021] [Accepted: 12/02/2021] [Indexed: 11/24/2022]
Abstract
Papillary thyroid cancer (PTC) is a common endocrine tumor with a rapidly increasing incidence in recent years. Although the majority of PTCs are relatively indolent and have a good prognosis, a certain proportion is highly aggressive with lymphatic metastasis, iodine resistance, and easy recurrence. Circular RNAs (circRNAs) are a class of noncoding RNAs that are linked to a variety of tumor processes in several cancers, including PTC. In the current study, circRNA high-throughput sequencing was performed to identify alterations in circRNA expression levels in PTC tissues. circTIAM1 was then selected because of its increased expression in PTC and association with apoptosis, proliferation, and migration of PTC cells in vitro and in vivo. Mechanistically, circTIAM1 acted as a sponge of microRNA-646 and functioned in PTC by targeting miR-646 and heterogeneous ribonucleoprotein A1. Fluorescence in situ hybridization and dual-luciferase reporter assays further confirmed these connections. Overall, our results reveal an important oncogenic role of circTIAM1 in PTC and may represent a potentially therapeutic target against PTC progression.
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Affiliation(s)
- Deguang Zhang
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Li Tao
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Nizheng Xu
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Xiaoxiao Lu
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Jianle Wang
- Department of orthopaedic surgery, Sir Run Run Shaw Hospital, Zhejiang University school of Medicine & Key laboratory of Musculoskeletal system Degeneration and regeneration Translational research of Zhejiang Province, 3 east Qingchun road, Hangzhou, 310016, People's Republic of China
| | - Gaofei He
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China
| | - Qinghu Tang
- Department of general surgery, People's Hospital of Linghu, Nanxun District, Huzhou, Zhejiang Province, People's Republic of China
| | - Kangmao Huang
- Department of orthopaedic surgery, Sir Run Run Shaw Hospital, Zhejiang University school of Medicine & Key laboratory of Musculoskeletal system Degeneration and regeneration Translational research of Zhejiang Province, 3 east Qingchun road, Hangzhou, 310016, People's Republic of China
| | - Shuying Shen
- Department of orthopaedic surgery, Sir Run Run Shaw Hospital, Zhejiang University school of Medicine & Key laboratory of Musculoskeletal system Degeneration and regeneration Translational research of Zhejiang Province, 3 east Qingchun road, Hangzhou, 310016, People's Republic of China.
| | - Junjie Chu
- Department of head and neck surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical School, Zhejiang University, Hangzhou, People's Republic of China.
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Li X, Yang Y, Liang L, Fan M, Li X, Feng N, Pan Y, Tan Q, Xu Q, Xie Y, Guo F. Effect Of XBP1 Deficiency In Cartilage On The Regulatory Network Of LncRNA/circRNA-miRNA-mRNA. Int J Biol Sci 2022; 18:315-330. [PMID: 34975335 PMCID: PMC8692151 DOI: 10.7150/ijbs.64054] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 10/29/2021] [Indexed: 12/13/2022] Open
Abstract
X-box binding protein 1(XBP1) is a critical component for unfolded protein response (UPR) in ER stress. According to previous studies performed with different XBP1-deficient mice, the XBP1 gene affects mouse cartilage development and causes other related diseases. However, how the complete transcriptome, including mRNA and ncRNAs, affects the function of cartilage and other tissues when XBP1 is deficient in chondrocytes is unclear. In this study, we aimed to screen the differentially expressed (DE) mRNAs, circRNAs, lncRNAs and miRNAs in XBP1 cartilage-specific knockout (CKO) mice using high throughput sequencing and construct the circRNA-miRNA-mRNA and lncRNA-miRNA-mRNA regulatory networks. DE LncRNAs (DE-LncRNAs), circRNAs (DE-circRNAs), miRNAs (DE-miRNAs), and mRNAs [differentially expressed genes (DEGs)] between the cartilage tissue of XBP1 CKO mice and controls were identified, including 441 DE-LncRNAs, 15 DE-circRNAs, 6 DE-miRNAs, and 477 DEGs. Further, 253,235 lncRNA-miRNA-mRNA networks and 1,822 circRNA-miRNA-mRNA networks were constructed based on the correlation between lncRNAs/circRNAs, miRNAs, mRNAs. The whole transcriptome analysis revealed that XBP1 deficiency in cartilage affects the function of cartilage and other different tissues, as well as associated diseases. Overall, our findings may provide potential biomarkers and mechanisms for the diagnosis and treatment of cartilage and other related diseases.
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Affiliation(s)
- Xiaoli Li
- Department of Cell Biology and Genetics, Core Facility of Development Biology, Chongqing Medical University, Chongqing 400016, China
| | - Yuyou Yang
- Department of Cell Biology and Genetics, Core Facility of Development Biology, Chongqing Medical University, Chongqing 400016, China
| | - Li Liang
- Department of Cell Biology and Genetics, Core Facility of Development Biology, Chongqing Medical University, Chongqing 400016, China
| | - Mengtian Fan
- Department of Cell Biology and Genetics, Core Facility of Development Biology, Chongqing Medical University, Chongqing 400016, China
| | - Xingyue Li
- Department of Cell Biology and Genetics, Core Facility of Development Biology, Chongqing Medical University, Chongqing 400016, China
| | - Naibo Feng
- Department of Cell Biology and Genetics, Core Facility of Development Biology, Chongqing Medical University, Chongqing 400016, China
| | - Yiming Pan
- Department of Cell Biology and Genetics, Core Facility of Development Biology, Chongqing Medical University, Chongqing 400016, China
| | - Qiaoyan Tan
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Qingbo Xu
- Cardiovascular Division, King's College London BHF Centre, London, United Kingdom
| | - Yangli Xie
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Fengjin Guo
- Department of Cell Biology and Genetics, Core Facility of Development Biology, Chongqing Medical University, Chongqing 400016, China
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Zhang JJ, Wang JQ, Xu X, Zhang LD, Zhang CP, Lu WL, Gu WQ, Dong ZY, Xiao Y, Xia ZW. Circulating circular RNA profiles associated with celiac disease seropositivity in children with type 1 diabetes. Front Pediatr 2022; 10:960825. [PMID: 36210930 PMCID: PMC9537605 DOI: 10.3389/fped.2022.960825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/07/2022] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION The frequency of celiac disease autoantibody (CDAb) positivity in type 1 diabetes (T1D) has increased due to unclear mechanisms, including autoimmune injury. Circular ribonucleic acids (circRNAs) participate in autoimmune diseases, but the roles of circRNAs in T1D with CDAbs are currently unknown. This study aimed to determine the frequency of CDAbs in Chinese children with T1D and describe the relationship between CDAbs and circRNAs. MATERIALS AND METHODS Eighty patients diagnosed with T1D were screened for CDAbs and CD-predisposing genes, and circRNAs in peripheral blood mononuclear cells (PBMCs) were collected from 47 patients. The Gene Expression Omnibus (GEO) database was searched for candidate circRNAs in related studies on T1D PBMCs. Data on clinical characteristics (i.e., blood glucose control, residual islet function, and daily insulin dosage) and immunophenotypes (i.e., islet autoantibodies and immune cell subsets) were collected. RESULTS In total, 35.0% of patients were positive for CDAbs. CD-predisposing genes accounted for 52.5% of the genes, and no significant difference in frequency was found between the CDAb-positive (CDAb+) and CDAb-negative (CDAb-) groups. In addition, among the differentially expressed circRNAs from the GEO database, five highly conserved circRNAs homologous to humans and mice were screened, and only the expression of hsa_circ_0004564 in the CDAb+ group significantly decreased (CDAb+ vs. CDAb-:1.72 ± 1.92 vs. 11.12 ± 8.59, p = 6.0 × 10-6), while the expression of hsa_circ_0004564 was upregulated in the general T1D population. Moreover, its parental gene RAPH1 was significantly upregulated (CDAb+ vs. CDAb-:1.26 ± 0.99 vs. 0.61 ± 0.46, p = 0.011). Importantly, the positive correlation between hsa_circ_0004564 and CD3+ cells was validated in children with T1D after adjustments for CDAbs (p = 0.029), while there were no correlations between hsa_circ_0004564 and clinical characteristics or other immune cell subsets (i.e., CD4+ T cells, CD8+ T cells, and natural killer cells). CONCLUSION This study highlights the importance of screening for CD in Chinese children with T1D, considering the high prevalence of CDAb positivity and CD-predisposing genes. The profile of candidate circRNAs in children with T1D with CDAbs was different from that in previous reports on general T1D patients from the GEO database. Moreover, hsa_circ_0004564 and its parental gene RAPH1 may be new targets for studying immune mechanisms in children with T1D and CD.
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Affiliation(s)
- Juan-Juan Zhang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Jun-Qi Wang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Xu Xu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Li-Dan Zhang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Cai-Ping Zhang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Wen-Li Lu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Wei-Qiong Gu
- Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Zhi-Ya Dong
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Yuan Xiao
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Zhen-Wei Xia
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
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