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Song M, Yan Q, Liu R. Circ_0007611 modulates the miR-34c-5p/LPAR2 cascade to suppress proliferation and enhance apoptosis of HTR-8/SVneo cells. Placenta 2024; 154:145-152. [PMID: 38986295 DOI: 10.1016/j.placenta.2024.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/05/2024] [Accepted: 06/17/2024] [Indexed: 07/12/2024]
Abstract
INTRODUCTION The aberrant biological behaviors of trophoblast cells actively take part in the pathogenesis of preeclampsia (PE). Herein, we defined the action of the circular RNA (circRNA) circ_0007611 on trophoblast cell apoptosis and growth to understand its role in PE. METHODS Expression of circ_0007611, miR-34c-5p and lysophosphatidic acid receptor 2 (LPAR2) mRNA was analyzed by qPCR. LPAR2 protein was determined by western blotting. Cell proliferation was analyzed by EdU assay. We assessed apoptosis through flow cytometry and analysis of caspase3 activity and apoptosis-related marker proteins. The binding of miR-34c-5p and circ_0007611 or LPAR2 was verified by dual-luciferase and pull-down assays. RESULTS Circ_0007611 and LPAR2 levels were augmented, while miR-34c-5p was diminished in blood samples of PE. Circ_0007611 deficiency repressed cell apoptosis and enhanced the growth of HTR-8/SVneo cells. Circ_0007611 interacted with miR-34c-5p, and miR-34c-5p depletion reversed circ_0007611 deficiency-induced HTR-8/SVneo cell apoptotic inhibition and growth enhancement. MiR-34c-5p targeted LPAR2, and circ_0007611 affected LPAR2 expression via miR-34c-5p competition. Circ_0007611 deficiency-induced HHTR-8/SVneo cell apoptotic inhibition and growth enhancement were also counteracted by LPAR2 overexpression. DISCUSSION Circ_0007611 modulates the miR-34c-5p/LPAR2 cascade to enhance apoptosis and inhibit proliferation in HTR-8/SVneo cells, thereby contributing to the progression of PE.
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Affiliation(s)
- Meiyu Song
- Department of Obstetrics, Yantai Yantaishan Hospital, Yantai City, 264003, Shandong, China
| | - Qian Yan
- Department of Obstetrics, Yantai Yantaishan Hospital, Yantai City, 264003, Shandong, China
| | - Ronghui Liu
- Department of Obstetrics, Yantai Yantaishan Hospital, Yantai City, 264003, Shandong, China.
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Jiang Z, Huang L, Cai H, Bo L, Chen L, Yang X, Huang H. Circular RNA circPHF16 enhances IL-17A expression and secretion by sequestering miR-378a-3p to activate the IL6ST axis in Graves' disease. Cytokine 2024; 181:156681. [PMID: 38963941 DOI: 10.1016/j.cyto.2024.156681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/13/2024] [Accepted: 06/15/2024] [Indexed: 07/06/2024]
Abstract
Interleukin-17A (IL-17A) plays a pivotal role in the pathogenesis of Graves' disease (GD), an autoimmune disorder affecting thyroid function, but the detailed regulatory mechanisms remain elusive. Circular RNAs (circRNAs) have emerged as key regulators of IL-17A expression and secretion in autoimmune diseases, yet their specific role in GD, especially within CD4 + T lymphocytes, are not well understood. In this study, a circRNA, circPHF16 (hsa_circ_0090364) was found to be highly expressed in the peripheral blood mononuclear cells and serum of GD patients. In vitro experiments in Jurkat T cells revealed that silencing of circPHF16 suppressed IL-17A expression and secretion, while overexpression of circPHF16 had the opposite effect. Furthermore, bioinformatics analysis demonstrated a circPHF16/miR-378a-3p/IL6ST pathway, in which circPHF16 regulates IL6ST expression, which, in turn, influences IL-17A expression and secretion by interacting with miR-378a-3p. In vivo studies in a mouse model of GD showed similar trends in molecular expression levels, consistent with competitive endogenous RNA interactions. Together the results of the study identify circPHF16 as a potential target in the development of new strategies for GD diagnosis and treatment, and thus, offer a theoretical foundation for clinical therapeutic approaches in GD.
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Affiliation(s)
- Zhengrong Jiang
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Linghong Huang
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Huiyao Cai
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Liang Bo
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Lijun Chen
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Xinna Yang
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China
| | - Huibin Huang
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, Fujian, China.
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Shen M, Wang X, Chang X, Li Z, Jiang N, Han Z, Liu X. Circ_0007535 upregulates TGFBR1 to promote pulmonary fibrosis in TGF-β1-treated lung fibroblasts via sequestering miR-18a-5p. Autoimmunity 2023; 56:2259128. [PMID: 37724521 DOI: 10.1080/08916934.2023.2259128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/10/2023] [Indexed: 09/21/2023]
Abstract
Circular RNAs (circRNAs) are functional molecules in all kinds of fibrosis diseases. The current study was performed for the exploration of circ_0007535 in pulmonary fibrosis. RNA levels for circ_0007535, miR-18a-5p, and transforming growth factor-β receptor 1 (TGFBR1) were assayed via a reverse transcription-quantitative polymerase chain reaction. Cell growth was determined by cell counting kit-8 assay for viability and ethynyl-2'-deoxyuridine assay for proliferation. Cell invasion and migration were examined by transwell assay and scratch assay. Western blot was performed for the detection of different proteins. Enzyme-linked immunosorbent assay was used to assess inflammatory response. The interaction analysis was conducted using dual-luciferase reporter assay, RNA immunoprecipitation assay, and biotin-coupled pull-down assay. Circ_0007535 was significantly upregulated by TGF-β1 in HFL1 cells. TGF-β1-induced proliferation, motility, ECM accumulation, and inflammatory reaction in HFL1 cells were alleviated by circ_0007535 knockdown. Circ_0007535 exhibited interaction with miR-18a-5p, and miR-18a-5p inhibition reversed all influences of circ_0007535 downregulation in TGF-β1-treated HFL1 cells. Circ_0007535 acted as a miR-18a-5p sponge to regulate the expression of downstream target TGFBR1. MiR-18a-5p induced TGFBR1 level inhibition to attenuate TGF-β1-mediated cell injury in HFL1 cells. This study evidenced that circ_0007535 facilitated TGF-β1-induced pulmonary fibrosis by depending on the absorption of miR-18a-5p to upregulate TGFBR1.
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Affiliation(s)
- Ming Shen
- Department of Respiratory, General Hospital of Angang Group Corporation, Anshan, Liaoning, China
| | - Xinyi Wang
- Department of Respiratory, General Hospital of Angang Group Corporation, Anshan, Liaoning, China
| | - Xiaofeng Chang
- Department of Respiratory, General Hospital of Angang Group Corporation, Anshan, Liaoning, China
| | - Zhun Li
- Department of Respiratory, General Hospital of Angang Group Corporation, Anshan, Liaoning, China
| | - Na Jiang
- Department of Respiratory, General Hospital of Angang Group Corporation, Anshan, Liaoning, China
| | - Zhuoyue Han
- Department of Respiratory, General Hospital of Angang Group Corporation, Anshan, Liaoning, China
| | - Xin Liu
- Department of Urology Surgery, General Hospital of Angang Group Corporation, Anshan, Liaoning, China
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Zhou F, Liu D, Ye J, Li B. Circ_0006944 aggravates LPS-induced HK2 cell injury via modulating miR-205-5p/UBL4A pathway. Autoimmunity 2023; 56:2276066. [PMID: 37994026 DOI: 10.1080/08916934.2023.2276066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 10/21/2023] [Indexed: 11/24/2023]
Abstract
Circular RNAs (circRNAs) has been manifested to be involved in the development of human diseases, including sepsis-associated acute kidney injury (SA-AKI). However, the function and mechanism of circ_0006944 in SA-AKI has not been validated. Lipopolysaccharide (LPS) was utilised to induce AKI cell model. Levels of genes and proteins were monitored by quantitative real-time polymerase chain reaction (qRT-PCR) and western blot. Cell counting kit 8 assay, EdU assay and flow cytometry were exploited to estimate cell proliferation and apoptosis. The concentrations of inflammation factors were measured via using ELISA assay. The levels of MDA and SOD were tested by the corresponding kits. The relationship between miR-205-5p and circ_0006944 or UBL4A was verified by dual-luciferase reporter assay and RIP assay. Circ_0006944 was overexpressed in SA-AKI patients, and interference of circ_0006944 restrained LPS-stimulated HK2 cell proliferation repression, apoptosis, inflammation and oxidative stress. Mechanistically, circ_0006944 could sponge miR-205-5p, and miR-205-5p interference counteracted circ_0006944 inhibition-mediated impact on the biological functions in LPS-induced HK2 cell. Additionally, UBL4A was targeted by miR-205-5p, and UBL4A overexpression also partially abolished the repressive impacts of miR-205-5p on LPS-triggered HK2 cell damage. Importantly, circ_0006944 sponged miR-205-5p to mediate the expression of UBL4A. Our outcomes identified that circ_0006944 exacerbated SA-AKI development via miR-205-5p/UBL4A axis, which might be a potential treatment and diagnosis biomarker for SA-AKI.
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Affiliation(s)
- Fan Zhou
- Department of Infectious Diseases, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei, China
- Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Hubei, China
| | - Dong Liu
- Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Hubei, China
- Department of Intensive Care Unit, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei, China
| | - Junwei Ye
- Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Hubei, China
- Department of Intensive Care Unit, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei, China
| | - Bingqi Li
- Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Hubei, China
- Department of Intensive Care Unit, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei, China
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Wu CC, Hou BC, Yang YH, Li XF, Ma HC, Li BX. Circ_0084188 promotes colorectal cancer progression by sponging miR-654-3p and regulating kruppel-like factor 12. Kaohsiung J Med Sci 2023; 39:1062-1076. [PMID: 37698263 DOI: 10.1002/kjm2.12749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/13/2023] [Accepted: 07/31/2023] [Indexed: 09/13/2023] Open
Abstract
To investigate the biological role and mechanism of circ_0084188 in colorectal cancer (CRC). Real-time quantitative polymerase chain reaction and western blot assay were used to detect RNA levels and protein levels in CRC cell lines (HCT116 and SW480), respectively. Cell proliferation was evaluated by Cell Counting Kit-8 assay, 5-ethynyl-2'-deoxyuridine assay, and colony formation assays. Cell apoptosis was determined using flow cytometry. Cell migration and invasion were measured by transwell assay. Sphere formation efficiency was determined by sphere formation assay. The interaction between microRNA-654-3p (miR-654-3p) and circ_0084188 or Kruppel-like factor 12 (KLF12) was confirmed by a dual-luciferase reporter, RNA immunoprecipitation and RNA pull-down assays. Xenograft in CRC mice model was utilized for exploring the role of circ_0084188 in vivo.Circ_0084188 was overexpressed in CRC tissues and cells. Circ_0084188 silencing suppressed cell proliferation, migration, invasion, and stemness and induced apoptosis in CRC cells. Circ_0084188 acted as a sponge for miR-654-3p, and circ_0084188 regulated CRC cell behaviors via sponging miR-654-3p. Moreover, KLF12 was a target of miR-654-3p, and miR-654-3p overexpression inhibited the malignant behaviors of CRC cells by downregulating KLF12. Mechanically, circ_0084188 sponged miR-654-3p to regulate KLF12 expression in CRC cells. In addition, circ_0084188 downregulation inhibited tumor growth in vivo.Circ_0084188 knockdown might repress CRC progression partially via regulating the miR-654-3p/KLF12 axis, providing a novel insight into the pathogenesis of CRC.
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Affiliation(s)
- Cui-Cui Wu
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, China
| | - Bai-Chun Hou
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, China
| | - Yu-Han Yang
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Xue-Feng Li
- Division of Hepato-Biliary-Pancreatic Surgery and Transplantation, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hong-Chao Ma
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, China
| | - Bin-Xian Li
- Department of Clinical Laboratory, Affiliated Hospital of Beihua University, Jilin, China
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Zhang L, Song W, Shi J, Chen Y. Circ_0084188 Regulates the progression of colorectal cancer through the miR-769-5p/KIF20A axis. Biochem Genet 2023; 61:1727-1744. [PMID: 36763221 DOI: 10.1007/s10528-023-10339-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/23/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the major gastrointestinal malignancies threatening human health. More and more studies indicate that circular RNAs (circRNAs) are important regulatory factors of CRC, but the mechanism is still indistinct. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot were used to detect the expression of circ_0084188, microRNA-769-5p (miR-769-5p), and kinesin family member 20A (KIF20A) in CRC tissues. Kaplan-Meier curve was used to analyze the relationship between circ_0084188 expression and the survival rate of CRC patients. Cell proliferation, viability, apoptosis, migration, and invasion were analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), 5-ethynyl-2'-deoxyuridine (EdU), flow cytometry, wound-healing, and transwell assays, respectively. The relationship between miR-769-5p and circ_0084188 or KIF20A was detected by a dual-luciferase reporter and RNA pull-down. The effect of circ_0084188 on tumor growth was verified by xenograft studies in vivo. RESULTS Circ_0084188 and KIF20A were upregulated and miR-769-5p was downregulated in CRC. Circ_0084188 knockdown repressed the proliferation, migration, and invasion of CRC cells, as well as enhanced apoptosis in vitro. Mechanistically, circ_0084188 targeted miR-769-5p, and the reduction of miR-769-5p reversed the effects of circ_0084188 knockdown on cell functional behaviors. KLF20A was a direct miR-769-5p target, and circ_0084188 acted as a sponge for miR-769-5p to regulate the KIF20A level. Moreover, miR-769-5p regulated the functional behaviors of CRC cells by targeting KIF20A. In addition, circ_0084188 knockdown confined the growth of xenograft tumors in vivo. CONCLUSION Circ_0084188 upregulated the expression of KIF20A to promote the tumorigenesis of CRC through miR-769-5p, providing a new therapeutic target for CRC.
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Affiliation(s)
- Licheng Zhang
- Department of Gastrointestinal and Anorectal Surgery, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China
| | - Weiliang Song
- Department of Gastrointestinal and Anorectal Surgery, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China.
| | - Junzhong Shi
- Department of Gastrointestinal and Anorectal Surgery, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China
| | - Yuzhuo Chen
- Department of Gastrointestinal and Anorectal Surgery, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China
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Zhang J, Cui X, Qu H, Zhang Y. Circ_0030411 aggravates cisplatin-resistance in non-small cell lung cancer by serving as a miR-495-3p sponge to enhance CCND1 expression. J Chemother 2023; 35:550-562. [PMID: 36591727 DOI: 10.1080/1120009x.2022.2162218] [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: 12/06/2022] [Accepted: 12/19/2022] [Indexed: 01/03/2023]
Abstract
Circular RNAsplay important modulators in cisplatin (DDP) resistant non-small cell lung cancer (NSCLC). Herein, the role and mechanism of circ_0030411 in DDP-resistant NSCLC was explored. Circ_0030411, miR-495-3p, CCND1, PCNA, Bax, E-cadherin, and ki-67 expression were examined byqRT-PCR, western blot and IHC. DDP resistance, cell proliferation, apoptosis, and motility were assessed usingCCK, EdU flow cytometry, and transwell. Xenograft tumour model was established to explore the role of circ_0030411 in DDP-resistant NSCLC. Interaction between miR-495-3p and circ_0030411 or CCND1 wasverified via luciferase reporterand RIP. Circ_0030411 and CCND1 were increased in DDP-resistant NSCLC tissues and cells, andmiR-495-3p level was decreased. Circ_0030411 knockdown hindered cell growth, migration, invasion, in DDP-resistant NSCLC cells, and improved DDP sensitivityof NSCLC in vivo. Mechanistically, circ_0030411 acted as a sponge of miR-495-3p to affect CCND1expression. Circ_0030411 facilitated DDP resistance by regulating the miR-495-3p/CCND1 axis, highlighting a promising target for NSCLC patients.
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Affiliation(s)
- Jing Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiaohai Cui
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hangying Qu
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yunfeng Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Ma Z, Kuang Z, Deng L. NGCICM: A Novel Deep Learning-Based Method for Predicting circRNA-miRNA Interactions. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2023; 20:3080-3092. [PMID: 37027645 DOI: 10.1109/tcbb.2023.3248787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The circRNAs and miRNAs play an important role in the development of human diseases, and they can be widely used as biomarkers of diseases for disease diagnosis. In particular, circRNAs can act as sponge adsorbers for miRNAs and act together in certain diseases. However, the associations between the vast majority of circRNAs and diseases and between miRNAs and diseases remain unclear. Computational-based approaches are urgently needed to discover the unknown interactions between circRNAs and miRNAs. In this paper, we propose a novel deep learning algorithm based on Node2vec and Graph ATtention network (GAT), Conditional Random Field (CRF) layer and Inductive Matrix Completion (IMC) to predict circRNAs and miRNAs interactions (NGCICM). We construct a GAT-based encoder for deep feature learning by fusing the talking-heads attention mechanism and the CRF layer. The IMC-based decoder is also constructed to obtain interaction scores. The Area Under the receiver operating characteristic Curve (AUC) of the NGCICM method is 0.9697, 0.9932 and 0.9980, and the Area Under the Precision-Recall curve (AUPR) is 0.9671, 0.9935 and 0.9981, respectively, using 2-fold, 5-fold and 10-fold Cross-Validation (CV) as the benchmark. The experimental results confirm the effectiveness of the NGCICM algorithm in predicting the interactions between circRNAs and miRNAs.
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Yuan H, Liu F, Long J, Duan G, Yang H. A review on circular RNAs and bacterial infections. Int J Biol Macromol 2023:125391. [PMID: 37321437 DOI: 10.1016/j.ijbiomac.2023.125391] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023]
Abstract
Bacterial infections and related diseases have been a major burden on social public health and economic stability around the world. However, the effective diagnostic methods and therapeutic approaches to treat bacterial infections are still limited. As a group of non-coding RNA, circular RNAs (circRNAs) that were expressed specifically in host cells and played a key regulatory role have the potential to be of diagnostic and therapeutic value. In this review, we systematically summarize the role of circRNAs in common bacterial infections and their potential roles as diagnostic markers and therapeutic targets.
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Affiliation(s)
- Haitao Yuan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Fang Liu
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Jinzhao Long
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Guangcai Duan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China.
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Daws SE, Gillespie A. Circular RNA regulation and function in drug seeking phenotypes. Mol Cell Neurosci 2023; 125:103841. [PMID: 36935046 PMCID: PMC10247439 DOI: 10.1016/j.mcn.2023.103841] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/19/2023] Open
Abstract
Drug overdoses have increased dramatically in the United States over the last decade where they are now the leading cause of accidental death. To develop efficient therapeutic options for decreasing drug consumption and overdose risk, it is critical to understand the neurobiological changes induced by drug exposure. Chronic systemic exposure to all drug classes, including opioids, psychostimulants, nicotine, cannabis, and alcohol, induces profound molecular neuroadaptations within the central nervous system that may reveal crucial information about the lasting effects that these substances impart on brain cells. Transcriptome analyses of messenger RNAs (mRNAs) have identified gene patterns in the brain that result from exposure to various classes of drugs. However, mRNAs represent only a small fraction of the RNA within the cell, and drug exposure also impacts other classes of RNA that are largely understudied, especially circular RNAs. Circular RNAs (circRNAs) are a naturally occurring RNA species formed from back-splicing events during mRNA processing and are enriched in the nervous system. circRNAs are a pleiotropic class of RNAs and have a diverse impact on cellular function, with putative functions including regulation of mRNA transcription, protein translation, microRNA sponging, and sequestration of RNA-binding proteins. Recent studies have demonstrated that circRNAs can modulate cognition and are regulated in the brain in response to drug exposure, yet very few studies have explored the contribution of circRNAs to drug seeking phenotypes. In this review, we will provide an overview of the mechanisms of circRNA function in the cell to highlight how drug-induced circRNA dysregulation may impact the molecular substrates that mediate drug seeking behavior and the current studies that have reported drug-induced dysregulation of circRNAs in the brain. Furthermore, we will discuss how principles of circRNA biology can be adapted to study circRNAs in models of drug exposure and seek to provide further insight into the neurobiology of addiction.
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Affiliation(s)
- Stephanie E Daws
- Center for Substance Abuse Research, Temple University, Philadelphia, PA, USA; Department of Neural Sciences, Temple University, Philadelphia, PA, USA.
| | - Aria Gillespie
- Center for Substance Abuse Research, Temple University, Philadelphia, PA, USA; Department of Neural Sciences, Temple University, Philadelphia, PA, USA
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Zhang Q, Duan H, Yang W, Liu H, Tao X, Zhang Y. Circ_0005615 restrains the progression of multiple myeloma through modulating miR-331-3p and IGF1R regulatory cascade. J Orthop Surg Res 2023; 18:356. [PMID: 37173768 PMCID: PMC10176712 DOI: 10.1186/s13018-023-03832-3] [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: 02/21/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND Circular RNAs are implicated in modulating the progression of various malignant tumors. However, the function and underlying mechanisms of circ_0005615 in multiple myeloma (MM) remain unclear. METHODS The expression levels of circ_0005615, miR-331-3p and IGF1R were tested by quantitative real-time polymerase chain reaction or western blot assay. Cell counting kit-8 and 5-ethynyl-2'-deoxyuridine (EdU) assay were performed for cell proliferation detection. Cell apoptosis and cell cycle were measured by flow cytometry. The protein expressions of Bax and Bcl-2 were detected by western blot assay. Glucose consumption, lactate production and ATP/ADP ratios were estimated to disclose cell glycolysis. The interaction relationship among miR-331-3p and circ_0005615 or IGF1R was proved by dual-luciferase reporter assay. RESULTS The abundance of circ_0005615 and IGF1R was increased in MM patients and cells, while the expression of miR-331-3p was decreased. Circ_0005615 inhibition retarded the proliferation and cell cycle progression, while reinforced the apoptosis of MM cells. Molecularly, circ_0005615 could sponge miR-331-3p, and the repressive trends of circ_0005615 deficiency on MM progression could be alleviated by anti-miR-331-3p introduction. Additionally, IGF1R was validated to be targeted by miR-331-3p, and IGF1R overexpression mitigated the suppressive function of miR-331-3p on MM development. Furthermore, IGF1R was mediated by circ_0005615/miR-331-3p axis in MM cells. CONCLUSION Circ_0005615 downregulation blocked MM development by targeting miR-331-3p/IGF1R axis.
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Affiliation(s)
- Qinxin Zhang
- Department of Spinal Surgery, Ordos Central Hospital, Ordos, 017000, Inner Mongolia, China
| | - Hui Duan
- Center for Local Diseases and Chronic Diseases, Dongsheng District Center for Disease Control and Preventio, Ordos, 017000, Inner Mongolia, China
| | - Wupeng Yang
- Department of Spinal Surgery, Ordos Central Hospital, Ordos, 017000, Inner Mongolia, China
| | - Hao Liu
- Department of Spinal Surgery, Ordos Central Hospital, Ordos, 017000, Inner Mongolia, China
| | - Xiaoyang Tao
- Department of Spinal Surgery, Ordos Central Hospital, Ordos, 017000, Inner Mongolia, China
| | - Yan Zhang
- Department of Medical Imaging, Ordos Central Hospital, No. 23, Yijinhuoluoxi Street, Dongsheng District, Ordos, 017000, Inner Mongolia, China.
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Rebolledo C, Silva JP, Saavedra N, Maracaja-Coutinho V. Computational approaches for circRNAs prediction and in silico characterization. Brief Bioinform 2023; 24:7150741. [PMID: 37139555 DOI: 10.1093/bib/bbad154] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/20/2023] [Accepted: 03/30/2023] [Indexed: 05/05/2023] Open
Abstract
Circular RNAs (circRNAs) are single-stranded and covalently closed non-coding RNA molecules originated from RNA splicing. Their functions include regulatory potential over other RNA species, such as microRNAs, messenger RNAs and RNA binding proteins. For circRNA identification, several algorithms are available and can be classified in two major types: pseudo-reference-based and split-alignment-based approaches. In general, the data generated from circRNA transcriptome initiatives is deposited on public specific databases, which provide a large amount of information on different species and functional annotations. In this review, we describe the main computational resources for the identification and characterization of circRNAs, covering the algorithms and predictive tools to evaluate its potential role in a particular transcriptomics project, including the public repositories containing relevant data and information for circRNAs, recapitulating their characteristics, reliability and amount of data reported.
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Affiliation(s)
- Camilo Rebolledo
- Center of Molecular Biology & Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Resources, Universidad de La Frontera, Temuco, Chile
- Advanced Center for Chronic Diseases - ACCDiS, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
- Centro de Modelamiento Molecular, Biofísica y Bioinformática - CM2B2, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Juan Pablo Silva
- Centro de Modelamiento Molecular, Biofísica y Bioinformática - CM2B2, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
- ANID Anillo ACT210004 SYSTEMIX, Rancagua, Chile
| | - Nicolás Saavedra
- Center of Molecular Biology & Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Resources, Universidad de La Frontera, Temuco, Chile
| | - Vinicius Maracaja-Coutinho
- Advanced Center for Chronic Diseases - ACCDiS, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
- Centro de Modelamiento Molecular, Biofísica y Bioinformática - CM2B2, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
- ANID Anillo ACT210004 SYSTEMIX, Rancagua, Chile
- Anillo Inflammation in HIV/AIDS - InflammAIDS, Santiago, Chile
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13
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Lu J, Wang Y, Wang J, Li Y, Shi Y, Tang L. Circ_0082476 targets miR-138-5p to promote proliferation, invasion, migration and inflammation in IL-22-treated human keratinocytes by upregulating BRD4. Int Immunopharmacol 2023; 119:110095. [PMID: 37044031 DOI: 10.1016/j.intimp.2023.110095] [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: 01/15/2023] [Revised: 03/14/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023]
Abstract
BACKGROUND Circular RNAs (circRNAs) are implicated in the disease progression via acting as sponges of microRNAs (miRNAs) to regulate gene expression. The purpose of this study was to analyze the involvement of circ_0082476 in Interleukin-22 (IL-22)-induced psoriasis. METHODS Expression detection for circ_0082476, microRNA-424-5p (miR-138-5p) or toll-like receptor (BRD4) was completed using reverse transcription-quantitative polymerase chain reaction assay. Cell Counting Kit-8 assay and EdU assay were used for analysis of cell viability and proliferation, respectively. Cell invasion and migration abilities were assessed through transwell assay and wound healing assay. The protein expression was examined via western blot. Inflammatory reaction was determined via Enzyme-linked immunosorbent assay. Dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were conducted for target binding research. RESULTS Circ_0082476 was significantly elevated in psoriasis patients and IL-22-treated keratinocytes (HaCaT). Knockdown of circ_0082476 reduced cell proliferation, invasion and migration in IL-22-treated HaCaT cells. Circ_0082476 induced sponge effect on miR-138-5p. Circ_0082476 regulated IL-22-induced cell injury through targeting miR-138-5p. BRD4 was confirmed as a target of miR-138-5p, and miR-138-5p relieved IL-22-induced cell dysfunction by the direct downregulation of BRD4. BRD4 was positively regulated by circ_0082476 via sponging miR-138-5p. CONCLUSION These findings disclosed that circ_0082476 facilitated the IL22-induced epidermis cell injury in psoriasis through the upregulation of BRD4 via binding to miR-138-5p.
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Affiliation(s)
- Jiajing Lu
- Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Institute of Psoriasis, School of Medicine, Tongji University, Shanghai 200443, China
| | - Yu Wang
- Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Institute of Psoriasis, School of Medicine, Tongji University, Shanghai 200443, China
| | - Jing Wang
- Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Institute of Psoriasis, School of Medicine, Tongji University, Shanghai 200443, China
| | - Ying Li
- Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Institute of Psoriasis, School of Medicine, Tongji University, Shanghai 200443, China
| | - Yuling Shi
- Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Institute of Psoriasis, School of Medicine, Tongji University, Shanghai 200443, China.
| | - Li Tang
- Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Institute of Psoriasis, School of Medicine, Tongji University, Shanghai 200443, China.
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14
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Feng J, He W, Xia J, Huang Q, Yang J, Gu WP, Zhang N, Liu YH. Human umbilical cord mesenchymal stem cells-derived exosomal circDLGAP4 promotes angiogenesis after cerebral ischemia-reperfusion injury by regulating miR-320/KLF5 axis. FASEB J 2023; 37:e22733. [PMID: 36723877 DOI: 10.1096/fj.202201488r] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/02/2022] [Accepted: 12/14/2022] [Indexed: 02/02/2023]
Abstract
Accumulating evidence suggests that human umbilical cord mesenchymal stem cell-derived exosomes (hUC-MSCs-Exos) are a promising therapeutic strategy for cerebral ischemia-reperfusion injury (CIRI). However, the underlying mechanism remains unclear. hUC-MSCs-Exos were identified by electron microscopy, NTA, and Western blotting. In the hypoxia/reoxygenation (H/R) cell model, human brain microvascular endothelial cells (HBMECs) were cocultured with hUC-MSCs-Exos. Then, cell viability, migration, apoptosis, and tube formation were measured by MTT, flow cytometry, transwell, and tube formation assays. RT-qPCR and Western blotting were used to detect the changes in RNA and protein. RNA pull-down and dual luciferase reporter assays confirmed the relationship between circDLGAP4, miR-320, and KLF5. Ischemia-reperfusion (I/R) rat model was established for in vivo experiments. hUC-MSCs-Exos increased the expression levels of circDLGAP4 and KLF5 but decreased miR-320 in H/R-treated HBMECs by transferring exosomal circDLGAP4. Knockdown of circDLGAP4 in hUC-MSCs-Exos reversed the promoting effects of hUC-MSCs-Exos on cell viability, migration, and tube formation in H/R-treated HBMECs in vitro and also abolished the protective effects of hUC-MSCs-Exos on cerebrovascular injury in I/R rats. Mechanistically, exosomal circDLGAP4 negatively regulated miR-320 in HBMECs, which directly bound to KLF5. In addition, the downregulation of miR-320 could reverse the regulatory effect of exosomal shcircDLGAL5 in H/R-treated HBMECs by upregulating KLF5. hUC-MSCs-Exos-derived circDLGAP4 reduced cerebrovascular injury by regulating miR-320/KLF5 signaling. These results provide a stem cell-based approach to treat CIRI.
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Affiliation(s)
- Jie Feng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Provincial Cerebrovascular Disease Clinical Medicine Research Center, Changsha, P.R. China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Wei He
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Provincial Cerebrovascular Disease Clinical Medicine Research Center, Changsha, P.R. China
| | - Jian Xia
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Provincial Cerebrovascular Disease Clinical Medicine Research Center, Changsha, P.R. China
| | - Qing Huang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Provincial Cerebrovascular Disease Clinical Medicine Research Center, Changsha, P.R. China
| | - Jie Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Provincial Cerebrovascular Disease Clinical Medicine Research Center, Changsha, P.R. China
| | - Wen-Ping Gu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Provincial Cerebrovascular Disease Clinical Medicine Research Center, Changsha, P.R. China
| | - Ning Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Provincial Cerebrovascular Disease Clinical Medicine Research Center, Changsha, P.R. China
| | - Yun-Hai Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, P.R. China.,Hunan Provincial Cerebrovascular Disease Clinical Medicine Research Center, Changsha, P.R. China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, P.R. China
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15
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Wang C, Jiang H, Peng J, Weng D, Zhang Y, Zhou Y, Zhang Q. Circular RNA circ_SKA3 enhances gastric cancer development by targeting miR-520h. Histol Histopathol 2023; 38:317-328. [PMID: 36134741 DOI: 10.14670/hh-18-521] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
PURPOSE To explore the mechanisms of action of circ_SKA3 in gastric cancer (GC), which are still not fully understood. METHODS Subcellular localization assay was used to analyze the localization of circ_SKA3, and Actinomycin D assay was applied to confirm the stability of circ_SKA3. The levels of circ_SKA3, microRNA (miR)-520h, and cell division cycle 42 (CDC42) mRNA were gauged by quantitative real-time polymerase chain reaction (qRT-PCR). The protein levels of CDC42 and proliferating cell nuclear antigen (PCNA) were assessed by western blot. Cell proliferation, colony formation, cell cycle distribution, apoptosis, migration, and invasion were detected by 3-[4,5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium bromide (MTT), 5-Ethynyl-2'-Deoxyuridine (EdU) incorporation, colony formation, flow cytometry, and transwell assays, respectively. Directed relationship between miR-520h and circ_SKA3 or CDC42 was verified by a dual-luciferase reporter assay. Mouse xenograft experiments were used to elucidate the impact of circ_SKA3 in vivo. RESULTS Overexpression of circ_SKA3 was validated in GC tissues and cells. The down-regulation of circ_SKA3 suppressed proliferation, cell cycle progression, colony formation, migration, invasion, and promoted cell apoptosis in vitro, as well as weakening tumor growth in vivo. Circ_SKA3 directly bound to miR-520h, and circ_SKA3 regulated CDC42 expression through miR-520h. Circ_SKA3 exerted regulatory effects on GC cell behaviors by inhibiting miR-520h. Furthermore, CDC42 was a functional target of miR-520h in regulating GC cell behaviors. CONCLUSION Our findings established a strong molecular mechanism, the miR-520h/CDC42 axis, at least in part, for the oncogenic role of circ_SKA3 in GC.
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Affiliation(s)
- Chuntao Wang
- Department of Thyroid Gastroenterology and Thoracic Surgery, Suizhou Central Hospital, Suizhou, Hubei, China
| | - Hao Jiang
- Department of Hepatopancreatobiliary Surgery, Suizhou Central Hospital, Suizhou, Hubei, China
| | - Jiaqun Peng
- Department of Thyroid Gastroenterology and Thoracic Surgery, Suizhou Central Hospital, Suizhou, Hubei, China
| | - Duanshun Weng
- Department of Thyroid Gastroenterology and Thoracic Surgery, Suizhou Central Hospital, Suizhou, Hubei, China
| | - Yu Zhang
- Department of Thyroid Gastroenterology and Thoracic Surgery, Suizhou Central Hospital, Suizhou, Hubei, China
| | - Yanxun Zhou
- Department of Gastroenterology, Suizhou Central Hospital, Suizhou, Hubei, China
| | - Qin Zhang
- Department of Thyroid Gastroenterology and Thoracic Surgery, Suizhou Central Hospital, Suizhou, Hubei, China.
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16
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Transcriptome RNA Sequencing Reveals That Circular RNAs Are Abundantly Expressed in Embryonic Breast Muscle of Duck. Vet Sci 2023; 10:vetsci10020075. [PMID: 36851380 PMCID: PMC10004440 DOI: 10.3390/vetsci10020075] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/14/2023] [Accepted: 01/17/2023] [Indexed: 01/20/2023] Open
Abstract
Circular RNAs are widespread in various species and have important roles in myogenesis. However, the circular RNAs involved in breast muscle development in ducks have not yet been studied. Here, to identify circular RNAs during duck skeletal muscle development, three pectorales from Shan Ma ducks at E13 and E19, which represent undifferentiated and differentiated myoblasts, respectively, were collected and subjected to RNA sequencing. A total of 16,622 circular RNAs were identified, of which approximately 80% were exonic circular RNAs and 260 were markedly differentially expressed between E19 and E13. The parental genes of the differentially expressed circular RNAs were significantly enriched in muscle-related biological processes. Moreover, we found that the overexpression of circGAS2-2 promoted cell cycle progression and increased the proliferation viability of duck primary myoblasts; conversely, knockdown of circGAS2-2 retarded the cell cycle and reduced the proliferation viability of myoblasts. Taken together, our results demonstrate that circular RNAs are widespread and variously expressed during the development of duck skeletal muscle and that circGAS2-2 is involved in the regulation of myogenesis.
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17
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Yang D, Xiao F, Li J, Wang S, Fan X, Ni Q, Li Y, Zhang M, Yan T, Yang M, He Z. Age-related ceRNA networks in adult Drosophila ageing. Front Genet 2023; 14:1096902. [PMID: 36926584 PMCID: PMC10012872 DOI: 10.3389/fgene.2023.1096902] [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: 11/26/2022] [Accepted: 02/10/2023] [Indexed: 03/06/2023] Open
Abstract
As Drosophila is an extensively used genetic model system, understanding of its regulatory networks has great significance in revealing the genetic mechanisms of ageing and human diseases. Competing endogenous RNA (ceRNA)-mediated regulation is an important mechanism by which circular RNAs (circRNAs) and long non-coding RNAs (lncRNAs) regulate ageing and age-related diseases. However, extensive analyses of the multiomics (circRNA/miRNA/mRNA and lncRNA/miRNA/mRNA) characteristics of adult Drosophila during ageing have not been reported. Here, differentially expressed circRNAs and microRNAs (miRNAs) between 7 and 42-day-old flies were screened and identified. Then, the differentially expressed mRNAs, circRNAs, miRNAs, and lncRNAs between the 7- and 42-day old flies were analysed to identify age-related circRNA/miRNA/mRNA and lncRNA/miRNA/mRNA networks in ageing Drosophila. Several key ceRNA networks were identified, such as the dme_circ_0009500/dme_miR-289-5p/CG31064, dme_circ_0009500/dme_miR-289-5p/frizzled, dme_circ_0009500/dme_miR-985-3p/Abl, and XLOC_027736/dme_miR-985-3p/Abl XLOC_189909/dme_miR-985-3p/Abl networks. Furthermore, real-time quantitative PCR (qPCR) was used to verify the expression level of those genes. Those results suggest that the discovery of these ceRNA networks in ageing adult Drosophila provide new information for research on human ageing and age-related diseases.
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Affiliation(s)
- Deying Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Feng Xiao
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jiamei Li
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Siqi Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Xiaolan Fan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Qingyong Ni
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yan Li
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Mingwang Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Taiming Yan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Mingyao Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.,Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Zhi He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
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18
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Xiang L, Yang W, Wang F, Liu G. Circ_0083964 knockdown impedes rheumatoid arthritis progression via the miR-204-5p-dependent regulation of YY1. J Orthop Surg Res 2022; 17:558. [PMID: 36550514 PMCID: PMC9773446 DOI: 10.1186/s13018-022-03353-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/10/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic inflammatory disease. Abnormal proliferation and inflammation of fibroblast-like synoviocytes (FLSs) are the main pathological features of the disease. Accumulating studies have identified that circular RNAs (circRNAs) were involved in the progression of RA. Our study was to assess the function and mechanism of circ_0083964 in RA. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) and western blot were utilized to test the level of circ_0083964, miR-204-5p and YY1. Counting Kit-8 (CCK-8) assay, EdU assay, flow cytometry, transwell assay and wound-healing assay were utilized to test cell viability, proliferation, apoptosis, invasion and migration. Cell inflammation was estimated with enzyme-linked immunosorbent assay (ELISA) kits. Dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were employed to identify the target relationship between miR-204-5p and circ_0083964 or YY1. RESULTS Circ_0083964 was highly expressed in RA synovial tissues and RA-FLSs. Circ_0083964 downregulation constrained proliferation, metastasis and inflammation and facilitated apoptosis in RA-FLSs. Furthermore, circ_0083964 served as a sponge of miR-204-5p, and rescue experiments proved that miR-204-5p deficiency overturned the suppressive impacts of circ_0083964 silencing on RA-FLSs progression. Additionally, we also verified that YY1 could be targeted by miR-204-5p, and its overexpression rescued the repressive impact of miR-204-5p introduction on RA-FLSs development. Besides that, we revealed that circ_0083964 mediated YY1 expression by regulating miR-204-5p. CONCLUSION Circ_0083964 inhibition confined RA development by sponging miR-204-5p to hamper the YY1 level, which will provide a theoretical basis for the treatment of RA.
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Affiliation(s)
- Lei Xiang
- grid.412979.00000 0004 1759 225XDepartment of Rheumatology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangcheng, Xiangyang City, 411000 Hubei Province China
| | - Wendi Yang
- grid.412979.00000 0004 1759 225XDepartment of Rheumatology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangcheng, Xiangyang City, 411000 Hubei Province China
| | - Feng Wang
- grid.412979.00000 0004 1759 225XDepartment of Rheumatology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangcheng, Xiangyang City, 411000 Hubei Province China
| | - Gaozhan Liu
- grid.412979.00000 0004 1759 225XDepartment of Rheumatology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangcheng, Xiangyang City, 411000 Hubei Province China
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Wu X, Chen H, Liu N, Liu S, Lin G. Curcumin suppresses lung cancer progression via circRUNX1 mediated miR-760/RAB3D axis. Thorac Cancer 2022; 14:506-516. [PMID: 36523170 PMCID: PMC9925347 DOI: 10.1111/1759-7714.14773] [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: 10/31/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Curcumin is a natural chemical component that has an anticancer effect. The aim of this study was to explore the potential molecular mechanism of curcumin regulating lung cancer (LC) progression. METHODS The expression of circRUNX1, miR-760 and Ras-like GTPase 3D (RAB3D) was detected by qRT-PCR. Cell proliferation were determined by CCK8 assay and colony formation assay. Cell apoptosis, migration and invasion were detected by flow cytometry, wound healing and transwell assays. Protein levels were examined by western blot (WB) analysis. RNA interaction was confirmed by dual-luciferase reporter assay. LC xenograft tumors were constructed using BALB/c nude mice. RESULTS CircRUNX1 was upregulated in LC and its expression could be inhibited by curcumin. Curcumin reduced LC cell proliferation, metastasis, and accelerate apoptosis, while circRUNX1 overexpression reversed these effects. MiR-760 was confirmed to be a target of circRUNX1, which could reverse the effects of circRUNX1 on curcumin-treated LC cell functions. RAB3D was a target of miR-760, and its knockdown reversed the promotion effect of miR-760 inhibitor on the progression of curcumin-treated LC cells. CONCLUSION Curcumin suppressed LC progression via circRUNX1/miR-760/RAB3D axis.
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Affiliation(s)
- Xiaodan Wu
- Department of Traditional Chinese MedicineCentral Hospital Affiliated to Shenyang Medical CollegeShenyangChina
| | - Hong Chen
- Department of GeneralCentral Hospital Affiliated to Shenyang Medical CollegeShenyangChina
| | - Na Liu
- Department of Traditional Chinese MedicineThe Third Affiliated Hospital of Shenyang Medical CollegeShenyangChina
| | - Sang Liu
- Department of Traditional Chinese MedicineThe Second Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Guanhong Lin
- Department of Integrated Traditional Chinese and Western medicineCancer Hospital of China Medical University, Liaoning Cancer HospitalShenyangChina
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20
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Lv X, Yang H, Zhong H, He L, Wang L. Osthole exhibits an antitumor effect in retinoblastoma through inhibiting the PI3K/AKT/mTOR pathway via regulating the hsa_circ_0007534/miR-214-3p axis. PHARMACEUTICAL BIOLOGY 2022; 60:417-426. [PMID: 35175172 PMCID: PMC8856102 DOI: 10.1080/13880209.2022.2032206] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 12/29/2021] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
CONTEXT Osthole shows antitumor effects in various tumours. Studies describing the effect of osthole on retinoblastoma (RB) are rare. OBJECTIVE This study investigates the antitumor activity of osthole on RB. MATERIALS AND METHODS RB cells were treated with different concentrations of osthole and then subjected to cell viability, colony formation, apoptosis, and western blot assays. The expression of hsa_circ_0007534 in RB tissues was determined by qRT-PCR. Hsa_circ_0007534 overexpression plasmid (oe-circ_0007534), miR-214-3p mimics and negative controls were transfected into RB cells to investigate cell viability. Athymic nude mice were injected with Y-79 cells to establish subcutaneous RB models. These mice were treated with osthole (0.5 mmol/kg) or corn oil for 36 days. Tumour tissues were collected for further analysis. RESULTS Osthole inhibited cell viability of RB cells with an IC50 of 200 μM for 24 h treatment and 120 μM for 48 h treatment, respectively. Hsa_circ_0007534 was increased significantly in RB tissues as compared to the matched nontumor tissues (p < 0.001). Oe-circ_0007534 counteracted the inhibitory effect of osthole on cell viability and colony numbers of Y-79 cells (p < 0.01). In vivo experiments indicated osthole significantly decreased the expression of hsa_circ_0007534 (p < 0.01) and increased the level of miR-214-3p in vivo. Furthermore, as compared to the control, osthole decreased the ratios of p-PI3K/PI3K, p-AKT/AKT and p-mTOR/mTOR (p < 0.01). However, hsa_circ_0007534 overexpression reversed the effect of osthole on the PI3K/AKT/mTOR pathway. DISCUSSION AND CONCLUSIONS Osthole exhibited an antitumour effect in RB, providing a scientific basis for further research and clinical applications of osthole in RB treatment.
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Affiliation(s)
- Xiufang Lv
- Department of Ophthalmology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Haojiang Yang
- Department of Ophthalmology, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Hui Zhong
- Department of Ophthalmology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Li He
- Department of Ophthalmology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Li Wang
- Department of Ophthalmology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
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21
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Wu Z, Yu X, Zhang S, He Y, Guo W. Mechanism underlying circRNA dysregulation in the TME of digestive system cancer. Front Immunol 2022; 13:951561. [PMID: 36238299 PMCID: PMC9550895 DOI: 10.3389/fimmu.2022.951561] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 09/12/2022] [Indexed: 11/18/2022] Open
Abstract
Circular RNAs (circRNAs) are a new series of noncoding RNAs (ncRNAs) that have been reported to be expressed in eukaryotic cells and have a variety of biological functions in the regulation of cancer pathogenesis and progression. The TME, as a microscopic ecological environment, consists of a variety of cells, including tumor cells, immune cells and other normal cells, ECM and a large number of signaling molecules. The crosstalk between circRNAs and the TME plays a complicated role in affecting the malignant behaviors of digestive system cancers. Herein, we summarize the mechanisms underlying aberrant circRNA expression in the TME of the digestive system cancers, including immune surveillance, angiogenesis, EMT, and ECM remodelling. The regulation of the TME by circRNA is expected to be a new therapeutic method.
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Affiliation(s)
- Zeyu Wu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China
- Henan Key Laboratory of Digestive Organ Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiao Yu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China
- Henan Key Laboratory of Digestive Organ Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shuijun Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China
- Henan Key Laboratory of Digestive Organ Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuting He
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China
- Henan Key Laboratory of Digestive Organ Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Wenzhi Guo, ; Yuting He,
| | - Wenzhi Guo
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China
- Henan Key Laboratory of Digestive Organ Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Wenzhi Guo, ; Yuting He,
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22
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Wang J, Liang Y, Qin Y, Jiang G, Peng Y, Feng W. circCRKL, a circRNA derived from CRKL, regulates BCR-ABL via sponging miR-877-5p to promote chronic myeloid leukemia cell proliferation. J Transl Med 2022; 20:395. [PMID: 36058922 PMCID: PMC9440867 DOI: 10.1186/s12967-022-03586-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 08/12/2022] [Indexed: 11/29/2022] Open
Abstract
Background The BCR-ABL fusion protein is the key factor that results in the occurrence of chronic myeloid leukemia (CML). Imatinib (IM) is a targeted inhibitor of BCR-ABL to achieve complete remission. However, remission failure occurs due to acquired resistance caused by secondary BCR-ABL mutations, underlining the need for novel BCR-ABL-targeting strategies. Circular RNAs (circRNAs) derived from tumor-related genes have been revealed as possible therapeutic targets for relevant cancers in recent investigations. In CML, the roles of this kind of circRNA are yet obscure. Methods Firstly, RT-qPCR was used for determining circCRKL expression level in cell lines and clinical samples, RNase R and Actinomycin D were employed to verify the stability of circCRKL. Then shRNAs were designed to specifically knockdown circCRKL. The function of circCRKL in vitro was investigated using CCK-8, colony formation assay, and flow cytometry, while a CML mouse model was constructed to explore the function in vivo. Finally, a dual-luciferase reporter assay, RNA pull-down, RNA immunoprecipitation, and rescue experiments were conducted to investigate the mechanism of circCRKL functioning. Results Here, we determined circCRKL, which derives from CML-relevant gene CRKL, is over-expressed in BCR-ABL+ cells. Then we noticed knocking down circCRKL using shRNA lentivirus dampens the proliferation of BCR-ABL+ cells both in vitro and in vivo, and augments susceptibility of resistant cells to IM. Intriguingly, we observed that circCRKL has a considerable impact on the expression level of BCR-ABL. Mechanistically, circCRKL could behave like a decoy for miR-877-5p to enhance the BCR-ABL level, allowing BCR-ABL+ cells to maintain viability. Conclusions Overall, the current study uncovers that circCRKL is specifically expressed and regulates BCR-ABL expression level via decoying miR-877-5p in BCR-ABL+ cells, highlighting that targeting circCRKL along with imatinib treatment could be utilized as a potential therapeutic strategy for CML patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03586-2.
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Affiliation(s)
- Jianming Wang
- Department of Clinical Hematology, Key Laboratory of Laboratory Medical Diagnostics Designated by the Ministry of Education, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yang Liang
- Department of Clinical Hematology, Key Laboratory of Laboratory Medical Diagnostics Designated by the Ministry of Education, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yuefeng Qin
- Department of Clinical Hematology, Key Laboratory of Laboratory Medical Diagnostics Designated by the Ministry of Education, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Guoyun Jiang
- Department of Clinical Hematology, Key Laboratory of Laboratory Medical Diagnostics Designated by the Ministry of Education, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yuhang Peng
- Department of Clinical Hematology, Key Laboratory of Laboratory Medical Diagnostics Designated by the Ministry of Education, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Wenli Feng
- Department of Clinical Hematology, Key Laboratory of Laboratory Medical Diagnostics Designated by the Ministry of Education, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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Circ_0001058 represses the progression of lung adenocarcinoma through governing of the miR-486-5p/TEK signaling axis. Anticancer Drugs 2022; 33:710-719. [PMID: 35946541 DOI: 10.1097/cad.0000000000001337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The most common type of lung cancer is lung adenocarcinoma. Emerging views believe that circular RNA (circRNA) participates in its pathogenesis. The objective of this study is to find out the potential functions and mechanisms of circ_0001058 in lung adenocarcinoma pathogenesis. To detect circ_0001058, miR-486-5p and TEK tyrosine kinase (TEK) receptor tyrosine kinase expressions, real-time quantitative PCR (RT-qPCR) and western blotting were performed. Cell functions, including proliferation, apoptosis and invasion, were then evaluated using cell counting kit-8, caspase-3 activity and transwell assays, respectively. To establish the role of circ_0001058 in tumorigenesis, nude mice were utilized as in-vivo models. The predicted binding relationships of miR-486-5p to circ_0001058 or TEK were further verified by performing a dual-luciferase assay and ribonucleoprotein immunoprecipitation (RIP) analysis. Decreased circ_0001058 expression was observed in lung adenocarcinoma cells and tissue specimens. Circ_0001058 was predominantly situated in the cytoplasm and was greatly resistant to RNase R digestion. Circ_0001058 overexpression restrained A549 and PC9 cells' abilities to proliferate, survive and invade, and it also repressed tumorigenesis in the animal models. Circ_0001058 directly targeted miR-486-5p and depleted its expression. Restoring miR-486-5p could invert the inhibitory effects of circ_0001058 in the cancer cell phenotypes. Furthermore, miR-486-5p targeted TEK, so the inhibitory effects of TEK overexpression on the malignant behaviors of A549 and PC9 cells could also be abolished by miR-486-5p restoration. Circ_0001058 overexpression blocked the malignant development of lung adenocarcinoma via modulation of the miR-486-5p/TEK pathway. These results contribute new insights on the pathogenesis of lung adenocarcinoma.
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24
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Huang C, Jiang Z, Du D, Zhang Z, Liu Y, Li Y. Hsa_circ_0016070/micro‐340‐5p Axis Accelerates Pulmonary Arterial Hypertension Progression by Upregulating TWIST1 Transcription Via TCF4/β‐Catenin Complex. J Am Heart Assoc 2022; 11:e024147. [PMID: 35861841 PMCID: PMC9707813 DOI: 10.1161/jaha.121.024147] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background
Hypoxia is considered a major leading cause of pulmonary hypertension (PH). In this study, the roles and molecular mechanism of circ_0016070 in PH were studied.
Methods and Results
The expression of circ_0016070 in serum samples, human pulmonary artery smooth muscle cells and hypoxia/monocrotaline‐treated rats was determined by real‐time quantitative polymerase chain reaction. Cell viability, migration, and apoptosis were analyzed by Cell Counting Kit‐8, wound healing, flow cytometry, and TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) assays, respectively. The molecular interactions were validated using RNA immunoprecipitation, chromatin immunoprecipitation, and dual luciferase reporter assays. The levels of phenotype switch‐related proteins were evaluated by Western blot and immunohistochemistry. The pathological characteristics were assessed using hematoxylin and eosin staining. circ_0016070 was highly expressed in the serum samples, hypoxia‐induced pulmonary artery smooth muscle cells and pulmonary arterial tissues of PH rats. Downregulation of circ_0016070 ameliorated the excessive proliferation, migration, vascular remodeling, and phenotypic transformation but enhanced cell apoptosis in the PH rat model. In addition, micro (miR)‐340‐5p was verified as a direct target of circ_0016070 and negatively regulated TCF4 (transcription factor 4) expression. TCF4 formed a transcriptional complex with β‐catenin to activate TWIST1 (Twist family bHLH transcription factor 1) expression. Functional rescue experiments showed that neither miR‐340‐5p inhibition nor TWIST1 or TCF4 upregulation significantly impeded the biological roles of circ_0010670 silencing in PH.
Conclusions
These results uncovered a novel mechanism by which circ_0016070 play as a competing endogenouse RNA of miR‐340‐5p to aggravate PH progression by promoting TCF4/β‐catenin/TWIST1 complex, which may provide potential therapeutic targets for PH.
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Affiliation(s)
- Chun‐Xia Huang
- The Second School of Clinical Medicine Southern Medical University Guangzhou Guangdong Province China
| | - Zhi‐Xin Jiang
- Department of Cardiology 305 Hospital of PLA Beijing China
| | - Da‐Yong Du
- Department of Cardiology 305 Hospital of PLA Beijing China
| | - Zhi‐Min Zhang
- Shanxi Medical University Linfen Peoples’ Hospital Linfen Shanxi Province China
| | - Yang Liu
- Department of Cardiology 305 Hospital of PLA Beijing China
| | - Yun‐Tian Li
- The Second School of Clinical Medicine Southern Medical University Guangzhou Guangdong Province China
- Department of Cardiology 305 Hospital of PLA Beijing China
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Osca-Verdegal R, Beltrán-García J, Górriz JL, Martínez Jabaloyas JM, Pallardó FV, García-Giménez JL. Use of Circular RNAs in Diagnosis, Prognosis and Therapeutics of Renal Cell Carcinoma. Front Cell Dev Biol 2022; 10:879814. [PMID: 35813211 PMCID: PMC9257016 DOI: 10.3389/fcell.2022.879814] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/31/2022] [Indexed: 12/12/2022] Open
Abstract
Renal cell carcinoma is the most common type of kidney cancer, representing 90% of kidney cancer diagnoses, and the deadliest urological cancer. While the incidence and mortality rates by renal cell carcinoma are higher in men compared to women, in both sexes the clinical characteristics are the same, and usually unspecific, thereby hindering and delaying the diagnostic process and increasing the metastatic potential. Regarding treatment, surgical resection remains the main therapeutic strategy. However, even after radical nephrectomy, metastasis may still occur in some patients, with most metastatic renal cell carcinomas being resistant to chemotherapy and radiotherapy. Therefore, the identification of new biomarkers to help clinicians in the early detection, and treatment of renal cell carcinoma is essential. In this review, we describe circRNAs related to renal cell carcinoma processes reported to date and propose the use of some in therapeutic strategies for renal cell carcinoma treatment.
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Affiliation(s)
- Rebeca Osca-Verdegal
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, Spain
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
| | - Jesús Beltrán-García
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, Spain
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
- INCLIVA Biomedical Research Institute, Valencia, Spain
| | - José Luis Górriz
- Department of Nephrology, University Clinic Hospital, INCLIVA, University of Valencia, Valencia, Spain
| | | | - Federico V. Pallardó
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, Spain
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
- INCLIVA Biomedical Research Institute, Valencia, Spain
| | - José Luis García-Giménez
- Center for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Valencia, Spain
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
- INCLIVA Biomedical Research Institute, Valencia, Spain
- EpiDisease S.L. (Spin-Off CIBER-ISCIII), Parc Científic de la Universitat de València, Valencia, Spain
- *Correspondence: José Luis García-Giménez,
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Wang L, Ma X, Yu J, Lou Y. Negative regulation of miR-1288-3p/KRT4 axis through a circular RNA in oral cancer. J Biochem Mol Toxicol 2022; 36:e23118. [PMID: 35707935 DOI: 10.1002/jbt.23118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 04/21/2022] [Accepted: 05/28/2022] [Indexed: 11/09/2022]
Abstract
Circular RNA (circRNA) has been widely reported to be involved in oral squamous cell carcinoma (OSCC), while the way in which hsa_circ_0096042 affects OSCC remains unclear. The hsa_circ_0096042, miR-1288-3p, and KRT4 expression in OSCC tissues and cell lines were detected by quantitative reverse-transcription polymerase chain reaction. Based on the overexpression of hsa_circ_0096042, miR-1288-3p, or KRT4, the viability and proliferation of OSCC cells were analyzed by cell counting kit-8 and colony formation assay, and the protein levels of Bax and Bcl-2 were detected by western blot, and the growth of cancer cells in vivo was analyzed by xenograft experiment. In addition, the database was used to predict the binding of hsa_circ_0096042, miR-1288-3p, and KRT4, and the interaction was confirmed by luciferase, RIP, and RNA pull-down assay. Hsa_circ_0096042 and KRT4 were abnormally downregulated and miR-1288-3p was upregulated in OSCC. Hsa_circ_0096042 overexpression restrained the proliferation and viability of OSCC cells, facilitated apoptosis, and inhibited the growth of cancer cells in vivo. Hsa_circ_0096042 bound to miR-1288-3p, whose upregulation promoted OSCC progression and eliminated the effects of overexpression of hsa_circ_0096042 on OSCC cells. KRT4 was the target gene for miR-1288-3p. Hsa_circ_0096042 plays an antitumor role in OSCC via miR-1288-3p/KRT4 axis.
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Affiliation(s)
- Lu Wang
- Department of stomatology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China
| | - Xin Ma
- Department of stomatology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China
| | - Jie Yu
- Department of stomatology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China
| | - Ying Lou
- Department of stomatology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China
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Yang H, Zhang C, Zhao Z. Lipopolysaccharide-induced lung cell inflammation and apoptosis are enhanced by circ_0003420/miR-424-5p/TLR4 axis via inactivating the NF-κB signaling pathway. Transpl Immunol 2022; 74:101639. [PMID: 35667541 DOI: 10.1016/j.trim.2022.101639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) can regulate disease progression, including sepsis-induced acute lung injury (ALI). This research aimed at investigating the function of circ_0003420 in lipopolysaccharide (LPS)-treated lung cells, as well as the functional mechanism. METHODS Enzyme-linked immunosorbent assay was used for inflammation analysis. Cell viability and proliferation were examined using Cell Counting Kit-8 assay and EdU assay. Cell apoptosis was measured by flow cytometry. Western blot was used for protein detection. Reverse transcription-quantitative polymerase chain reaction assay was performed for quantification of circ_0003420, microRNA-424-5p (miR-424-5p) or toll-like receptor (TLR4). The interaction between miR-424-5p and circ_0003420 or TLR4 was conducted through dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay. RESULTS Lung cell inflammation and apoptosis were promoted, but cell viability and proliferation were inhibited by LPS. Silence of circ_0003420 attenuated the LPS-mediated lung cell injury. Circ_0003420 could interact with miR-424-5p. The protective function by knockdown of si-circ_0003420 was relieved by miR-424-5p inhibition in LPS-treated cells. TLR4 served as a downstream target of miR-424-5p. Overexpression of miR-424-5p repressed inflammatory and apoptotic damages in LPS-treated lung cells via downregulating TLR4. Circ_0003420 upregulated the TLR4 level by targeting miR-424-5p and circ_0003420 regulated the NF-κB signaling pathway through the miR-424-5p/TLR4 axis. CONCLUSION These results uncovered that circ_0003420 contributed to the LPS-induced lung cell injury via activating the miR-424-5p/TLR4-related NF-κB signaling pathway. Circ_0003420 might be a therapeutic target in sepsis-induced ALI.
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Affiliation(s)
- Hailing Yang
- Department of Critical Medicine, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Chunmei Zhang
- Department of Critical Medicine, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Zhongyan Zhao
- Department of Critical Medicine, China-Japan Union Hospital of Jilin University, Changchun 130033, China.
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Li D, Yan L, Zhang J, Gu F. Circular RNA hsa_circ_0004396 acts as a sponge of miR-615-5p to promote non-small cell lung cancer progression and radioresistance through the upregulation of P21-Activated Kinase 1. J Clin Lab Anal 2022; 36:e24463. [PMID: 35500159 PMCID: PMC9169218 DOI: 10.1002/jcla.24463] [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: 02/10/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUNDS CircRNA hsa_circ_0004396 has been confirmed to be upregulated in human non-small cell lung cancer (NSCLC). The aim of his study was to evaluate its mechanism in the radioresistance and progression of NSCLC. METHODS Hsa_circ_0004396, miR-615-5p, and P21-Activated Kinase 1 (PAK1) were measured by reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR). The binding between miR-615-5p and hsa_circ_0004396 or PAK1 was predicted by circinteractome or Targetscan, as verified by dual-luciferase reporter assay and RIP assay. Proliferation, clonogenicity capacity, cell cycle progression, apoptosis, migration, and invasion were assessed by CCK-8, colony formation, flow cytometry, and Transwell assay. Bcl-2, Bcl-2 associated protein X (Bax), MMP-2, and PAK1 protein levels were detected using western blot assay. In addition, in vivo function of hsa_circ_0004396 was evaluated by tumor xenograft assay. RESULTS Hsa_circ_0004396 and PAK1 levels were upregulated, while miR-615-5p was declined in NSCLC. Hsa_circ_0004396 silencing inhibited NSCLC cell malignant behavior and induced radiosensitivity. Hsa_circ_0004396 functions as a molecular sponge of miR-615-5p to regulate PAK1 expression. Moreover, hsa_circ_0004396 knockdown inhibited NSCLC tumor growth in vivo. CONCLUSION Our findings demonstrated that hsa_circ_0004396 promoted NSCLC development and radioresistance through the miR-615-5p/PAK1 axis, which might provide a new therapeutic target for NSCLC treatment.
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Affiliation(s)
- Dong Li
- Department of Thoracic Surgery, Gansu Provincial Tumor Hospital, Lanzhou, Gansu, China
| | - Lin Yan
- Department of Anesthesiology, Gansu Provincial Hospital, Lanzhou, Gansu, China
| | - Junhan Zhang
- Research and Experimental Center, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Feng Gu
- Department of Aspiration Oncology, Gansu Provincial Tumor Hospital, Lanzhou, Gansu, China
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Xie H, Yao J, Wang Y, Ni B. Exosome-transmitted circVMP1 facilitates the progression and cisplatin resistance of non-small cell lung cancer by targeting miR-524-5p-METTL3/SOX2 axis. Drug Deliv 2022; 29:1257-1271. [PMID: 35467477 PMCID: PMC9045767 DOI: 10.1080/10717544.2022.2057617] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Circular RNAs (circRNAs) play important regulatory roles in multiple human malignancies, including non-small cell lung cancer (NSCLC). Here, we explored the role of circRNA vacuole membrane protein 1 (circVMP1) in NSCLC progression and cisplatin (DDP) resistance. Methods The DDP resistance, proliferation, sphere formation ability, migration, invasion, and apoptosis of NSCLC cells were analyzed by Cell Counting Kit-8 (CCK8) assay, 5-ethynyl-2′-deoxyuridine (EdU) assay, sphere formation assay, wound healing assay, Transwell assay, and flow cytometry. Methylated RIP-qPCR (MeRIP-qPCR) was conducted to analyze the m6A modification level of SRY-box transcription factor 2 (SOX2). Dual-luciferase reporter assay, RNA immunoprecipitation (RIP) assay, and RNA-pull down assay were performed to confirm the intermolecular interaction. Exosomes were identified by transmission electron microscopy (TEM) and characterized by nanoparticle tracking analysis (NTA). Results CircVMP1 expression was markedly elevated in DDP-resistant NSCLC cell lines compared with their parental cell lines. CircVMP1 absence restrained the proliferation, sphere formation, migration, invasion, and DDP resistance and promoted the apoptosis of DDP-resistant NSCLC cells. CircVMP1 acted as microRNA-524-5p (miR-524-5p) sponge to up-regulate the expression of methyltransferase 3, N6-adenosine-methyltransferase complex catalytic subunit (METTL3) and SOX2. CircVMP1 silencing restrained the malignant behaviors and DDP resistance of A549/DDP and H1299/DDP cells by targeting miR-524-5p. Exosomal circVMP1 disseminated the malignant properties and DDP resistance to DDP-sensitive cells. Exosomal circVMP1 elevated the DDP resistance of xenograft tumors in vivo. Exosomal circVMP1 was up-regulated in the serum samples of DDP-resistant NSCLC patients compared with DDP-sensitive patients. Conclusion Exosome-mediated transmission of circVMP1 promoted NSCLC progression and DDP resistance by targeting miR-524-5p-METTL3/SOX2 axis.Highlights CircVMP1 level is up-regulated in DDP-resistant NSCLC cell lines compared with DDP-sensitive cell lines. CircVMP1 absence restrains the malignant behaviors and DDP resistance of A549/DDP and H1299/DDP cells. CircVMP1-miR-524-5p/METTL3/SOX2 axis is identified for the first time. CircVMP1 plays an oncogenic role by targeting miR-524-5p-METTL3/SOX2 axis in A549/DDP and H1299/DDP cells. Exosomal circVMP1 transmits the malignant properties and DDP resistance to DDP-sensitive cells.
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Affiliation(s)
- Hongya Xie
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China.,Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Jie Yao
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yuxuan Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Bin Ni
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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Zhao C, Chen H, Min K. CircCDC6 restrains tumor growth and glycolysis energy metabolism in colorectal cancer via regulating miR-3187-3p and downstream PRKAA2. J Bioenerg Biomembr 2022; 54:163-174. [PMID: 35438362 DOI: 10.1007/s10863-022-09938-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 04/05/2022] [Indexed: 11/26/2022]
Abstract
The aberrant downregulation of circCDC6 in colorectal cancer (CRC) was previously identified by circRNA microarray analysis. However, the detailed role of circCDC6 in CRC is still lacking. We thus investigated the function of circCDC6 in CRC. The expression of circCDC6, miR-3187-3p and PRKAA2 mRNA was checked by real-time quantitative PCR (RT-qPCR). Cell growth was evaluated by MTT, EdU and colony formation assays. Cell apoptosis was evaluated by flow cytometry. Glycolysis was evaluated by glycolysis stress test and lactic acid level. The expression of PRKAA2, HK2 and LDHA proteins was checked by western blotting. The potential binding between miR-3187-3p and circCDC6 or PRKAA2 was confirmed by dual-luciferase reporter assay, RIP assay and pull-down assay. Xenograft model was established in nude mice. CircCDC6 showed poor expression in CRC tumor samples and cells. CircCDC6 ectopic expression repressed CRC cell proliferation, survival and glycolysis energy metabolism. MiR-3187-3p was targeted by circCDC6, and miR-3187-3p depletion also repressed CRC cell growth and glycolysis. PRKAA2 was a downstream target of circCDC6/miR-3187-3p pathway, and circCDC6 upregulated PRKAA2 expression via targeting miR-3187-3p. PRKAA2 knockdown rescued the functional effects of circCDC6 ectopic expression. CircCDC6 overexpression in vivo impeded tumor development in animal models. CircCDC6, acting as a tumor inhibitor, repressed tumor growth and glycolysis metabolism in CRC via targeting the miR-3187-3p/PRKAA2 axis, which partly clarified the role of circCDC6 in CRC.
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Affiliation(s)
- Chunxiang Zhao
- Department of Gastrointestinal Surgery, Wuhan First Hospital, No.215 Zhongshan Avenue, Qiaokou District, Wuhan City, 430000, Hubei Province, China
| | - Hong Chen
- Department of Gastrointestinal Surgery, Wuhan First Hospital, No.215 Zhongshan Avenue, Qiaokou District, Wuhan City, 430000, Hubei Province, China
| | - Kai Min
- Department of Gastrointestinal Surgery, Wuhan First Hospital, No.215 Zhongshan Avenue, Qiaokou District, Wuhan City, 430000, Hubei Province, China.
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Hu X, Yin J, He R, Chao R, Zhu S. Circ_KCNQ5 participates in the progression of childhood acute myeloid leukemia by enhancing the expression of RAB10 via binding to miR-622. Hematology 2022; 27:431-440. [PMID: 35413218 DOI: 10.1080/16078454.2022.2056983] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND : Acute myeloid leukemia (AML) is regarded as a haematological malignancy and seriously threatens the public's health. Circular RNA (circRNA) is gradually confirmed to be involved in the development of AML. The purpose of this study was to disclose the role of circRNA Potassium Voltage-Gated Channel Subfamily Q Member 5 (circ_KCNQ5) in AML. METHODS : Quantitative real-time PCR (qPCR) and western blot were used for expression analysis. Colony formation assay, EdU assay and MTT assay were performed to determine cell proliferation. Flow cytometry assay was conducted to determine cell apoptosis. The predicted binding relationship between miR-622 and circ_KCNQ5 or RAS oncogene family member 10 (RAB10) was verified by dual-luciferase reporter assay. RESULTS : The expression of circ_KCNQ5 was increased in bone marrow samples of childhood AML patients and AML cell lines. The knockdown of circ_KCNQ5 largely suppressed AML cell proliferation and promoted cell apoptosis. Circ_KCNQ5 directly bound to miR-622 and inhibited miR-622 expression. The cotransfection of miR-622 inhibitor reversed the effects of circ_KCNQ5 knockdown and thus recovered cell proliferation and depleted cell apoptosis. RAB10 was a target of miR-622, and circ_KCNQ5 bound to miR-622 to increase the expression of RAB10. MiR-622 restoration inhibited AML cell proliferation and induced cell apoptosis, while RAB10 overexpression abolished these effects. CONCLUSION : Circ_KCNQ5 high expression was associated with childhood AML malignant development, and circ_KCNQ5 participated in AML progression by regulating the miR-622/RAB10 pathway.
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Affiliation(s)
- Xiaoyan Hu
- Department of Pediatric Hematology, Gansu Provincial Maternity and Child-care Hospital, Lanzhou City, People's Republic of China
| | - Jiaojiao Yin
- Department of Clinical Laboratory, Gansu Provincial Maternity and Child-care Hospital, Lanzhou City, People's Republic of China
| | - Rui He
- Department of Clinical Laboratory, Gansu Provincial Maternity and Child-care Hospital, Lanzhou City, People's Republic of China
| | - Rong Chao
- Department of Pediatric Hematology, Gansu Provincial Maternity and Child-care Hospital, Lanzhou City, People's Republic of China
| | - Shengdong Zhu
- Department of Pediatric Hematology, Gansu Provincial Maternity and Child-care Hospital, Lanzhou City, People's Republic of China
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Circ_0000263 facilitates the proliferation and inhibits the apoptosis of cervical cancer depending on the regulation of miR-1179/ABL2 axis. Reprod Sci 2022; 29:2636-2646. [PMID: 35355231 DOI: 10.1007/s43032-022-00920-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/12/2022] [Indexed: 12/09/2022]
Abstract
Circular RNA (circRNA) has been reported to participate in the progression of cervical cancer (CC). Studies on the role and mechanism of circ_0000263 in CC are limited, and more studies are needed. The expression of circ_0000263, microRNA (miR)-1179 and ABL proto-oncogene 2 (ABL2) mRNA in tissues and cells was analyzed by quantitative real-time PCR. The proliferation and apoptosis of CC cells were determined using cell counting kit 8 assay, Edu assay, colony formation assay and flow cytometry. The protein expression of proliferation markers, apoptosis markers and ABL2 was detected by western blot analysis. The interaction between RNAs was estimated via dual-luciferase reporter assay. Xenograft models were applied to explore the effect of circ_0000263 knockdown on CC tumorigenesis. Circ_0000263 was highly expressed in CC tumor tissues. Silencing of circ_0000263 suppressed CC cell proliferation and increased apoptosis. Circ_0000263 served as a sponge for miR-1179, and miR-1179 inhibitor reversed the regulation of si-circ_0000263 on CC cell proliferation and apoptosis. ABL2 could be targeted by miR-1179, and circ_0000263 could sponge miR-1179 to regulate ABL2. Overexpression of ABL2 reversed the anti-proliferation and pro-apoptosis roles of miR-1179 in CC cells. In addition, circ_0000263 knockdown reduced CC tumor growth by miR-1179/ABL2 axis. In brief, the results demonstrated that circ_0000263 exerted an oncogene role in CC, which suggested that circ_0000263 might be a promising therapeutic target for CC.
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Dori M, Caroli J, Forcato M. Circr, a Computational Tool to Identify miRNA:circRNA Associations. FRONTIERS IN BIOINFORMATICS 2022; 2:852834. [PMID: 36304313 PMCID: PMC9580875 DOI: 10.3389/fbinf.2022.852834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/21/2022] [Indexed: 08/21/2023] Open
Abstract
Circular RNAs (circRNAs) are known to act as important regulators of the microRNA (miRNA) activity. Yet, computational resources to identify miRNA:circRNA interactions are mostly limited to already annotated circRNAs or affected by high rates of false positive predictions. To overcome these limitations, we developed Circr, a computational tool for the prediction of associations between circRNAs and miRNAs. Circr combines three publicly available algorithms for de novo prediction of miRNA binding sites on target sequences (miRanda, RNAhybrid, and TargetScan) and annotates each identified miRNA:target pairs with experimentally validated miRNA:RNA interactions and binding sites for Argonaute proteins derived from either ChIPseq or CLIPseq data. The combination of multiple tools for the identification of a single miRNA recognition site with experimental data allows to efficiently prioritize candidate miRNA:circRNA interactions for functional studies in different organisms. Circr can use its internal annotation database or custom annotation tables to enhance the identification of novel and not previously annotated miRNA:circRNA sites in virtually any species. Circr is written in Python 3.6 and is released under the GNU GPL3.0 License at https://github.com/bicciatolab/Circr.
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Affiliation(s)
- Martina Dori
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena,Italy
| | - Jimmy Caroli
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena,Italy
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Mattia Forcato
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena,Italy
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Lin X, Zhang L, Zhang W, Lei X, Lu Q, Ma A. Circular RNA circ_0001006 aggravates cardiac hypertrophy via miR-214-3p/PAK6 axis. Aging (Albany NY) 2022; 14:2210-2220. [PMID: 35306484 PMCID: PMC8954976 DOI: 10.18632/aging.203461] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/30/2021] [Indexed: 05/12/2023]
Abstract
AIM Circular RNAs (circRNAs) control gene expression in a series of physiological and pathological processes, but their role in heart disease is unknown. This research illustrates the role and potential mechanism of circRNA in cardiac hypertrophy. METHODS AND RESULTS In this report, we found that circular RNA hsa_circ_0001006 (circ_0001006) was upregulated in cardiac hypertrophy mice and cardiomyocytes treated with angiotensin II (Ang II). Next, we noticed that gain of function circ_0001006 could induce cardiomyocyte hypertrophy; oppositely, knockdown of circ_0001006 remitted Ang II-induced cardiomyocyte hypertrophy. Biotin-coupled miRNA and RNA-pull down assays showed that miR-214-3p could bind with circ_0001006 and gain the function of miR-214-3p abrogated the pro-hypertrophy effect of circ_0001006. Furthermore, Further, dual-luciferase reporter assay showed that miR-214-3p could interact with 3'UTRs of the PAK6 gene, and circRNA_0001006 could block the above interactions. Additionally, PAK6 expression is inhibited by miR-214-3p mimic in cardiomyocytes but enhanced by over-expression of circRNA_000203 in vitro. CONCLUSIONS Our data demonstrated that circRNA_0001006 exacerbates cardiac hypertrophy via suppressing miR-214-3p leading to enhanced PAK6 levels.
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Affiliation(s)
- Xuefeng Lin
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi 710061, PR China
- Key Laboratory of Molecular Cardiology, Xi’an Jiaotong University, Xi’an, Shanxi 710061, PR China
- Institute of Cardiovascular Channelopathy, Xi’an Jiaotong University, Xi’an, Shanxi 7100161, PR China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, Shanxi 7100161, PR China
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia 014010, PR China
- Baotou Medical College, Baotou, Inner Mongolia 014010, PR China
| | - Liqin Zhang
- Baotou Medical College, Baotou, Inner Mongolia 014010, PR China
| | - Wei Zhang
- ECG Room, Xi’an Children’s Hospital, Xi’an, Shanxi 710061, PR China
| | - Xinjun Lei
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi 710061, PR China
| | - Qun Lu
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi 710061, PR China
| | - Aiqun Ma
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shanxi 710061, PR China
- Key Laboratory of Molecular Cardiology, Xi’an Jiaotong University, Xi’an, Shanxi 710061, PR China
- Institute of Cardiovascular Channelopathy, Xi’an Jiaotong University, Xi’an, Shanxi 7100161, PR China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, Shanxi 7100161, PR China
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Xu Y, Jiang W, Zhong L, Li H, Bai L, Chen X, Lin Y, Zheng D. circ-AKT3 aggravates renal ischaemia-reperfusion injury via regulating miR-144-5p /Wnt/β-catenin pathway and oxidative stress. J Cell Mol Med 2022; 26:1766-1775. [PMID: 33200535 PMCID: PMC8918412 DOI: 10.1111/jcmm.16072] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 10/03/2020] [Accepted: 10/16/2020] [Indexed: 12/19/2022] Open
Abstract
Renal ischaemia-reperfusion (RI/R) injury is one major pathological state of acute kidney injury (AKI) with a mortality rate ranking 50% to 80%. MiR-144-5p acts as a molecular trigger in various diseases. We presumed that miR-144-5p might be involved RI/R injury progression. We found that RI/R injury decreased miR-144-5p expression in rat models. MiR-144-5p downregulation promoted cell apoptosis rate and activated Wnt/β-catenin signal in RI/R injury rats. By performing bioinformatic analysis, RIP, RNA pull-down, luciferase reporter experiments, we found that circ-AKT3 sponged to miR-144-5p and decreased its expression in RI/R injury rats. Moreover, we found that circ-AKT3 promoted cell apoptosis rate and activated Wnt/β-catenin signal, and miR-144-5p mimic reversed the promotive effect of circ-AKT3 in rat models. We also found that circ-AKT3 increased the oxidative stress level in rat models. In conclusion, our study suggests that the circAKT3 is involved RI/R injury progression through regulating miR-144-5p/Wnt/β-catenin pathway and oxidative stress.
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Affiliation(s)
- Yong Xu
- Department of NephrologyAffiliated Huai’an Hospital of Xuzhou Medical UniversityHuai’an, JiangsuChina
- Department of NephrologySiyang Hospital of Traditional Chinese MedicineSuqian, JiangsuChina
| | - Wei Jiang
- Department of NephrologyAffiliated Huai’an Hospital of Xuzhou Medical UniversityHuai’an, JiangsuChina
| | - Lili Zhong
- Department of NephrologyAffiliated Huai’an Hospital of Xuzhou Medical UniversityHuai’an, JiangsuChina
| | - Hailun Li
- Department of NephrologyAffiliated Huai’an Hospital of Xuzhou Medical UniversityHuai’an, JiangsuChina
| | - Lin Bai
- Department of NephrologyAffiliated Huai’an Hospital of Xuzhou Medical UniversityHuai’an, JiangsuChina
| | - Xiaoling Chen
- Department of NephrologyAffiliated Huai’an Hospital of Xuzhou Medical UniversityHuai’an, JiangsuChina
| | - Yongtao Lin
- Department of NephrologyAffiliated Huai’an Hospital of Xuzhou Medical UniversityHuai’an, JiangsuChina
| | - Donghui Zheng
- Department of NephrologyAffiliated Huai’an Hospital of Xuzhou Medical UniversityHuai’an, JiangsuChina
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Zhu J, Xie B, Huang G, Li Y, Liu Z. Sevoflurane represses the progression of glioma by the regulation of circ_0037655/miR-130a-5p/RPN2 axis. Metab Brain Dis 2022; 37:787-799. [PMID: 35032276 DOI: 10.1007/s11011-022-00906-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 01/06/2022] [Indexed: 10/19/2022]
Abstract
Sevoflurane (SEV) is a common anesthetic to inhibit glioma progression. The previous studies have indicated the molecular mechanisms of SEV function in glioma. The objective of this study was to explore the association of circ_00037655 with SEV in glioma. Cell viability was evaluated by Cell Counting Kit-8 (CCK-8) assay. Cell proliferation was analyzed using Edu assay and colony formation assay. Flow cytometry was applied to determine cell apoptosis. Protein analysis was performed via western blot. Cell migration and invasion were assessed by transwell assay. Circ_0037655, microRNA-130a-5p (miR-130a-5p) and ribophorin II (RPN2) levels were detected using the quantitative real-time polymerase chain reaction (qRT-PCR). Dual-luciferase reporter, RNA immunoprecipitation (RIP) and pull-down assays were used to analyze target interaction. The effect of circ_0037655 on SEV in vivo was researched by xenograft models. SEV reduced cell viability, proliferation, migration and invasion but induced apoptosis of glioma cells. Circ_0037655 expression was inhibited after SEV treatment in glioma cells. The effects of SEV on glioma cell behaviors were attenuated by upregulation of circ_0037655. Circ_0037655 interacted with miR-130a-5p and miR-130a-5p targeted RPN2. Circ_0037655 or miR-130a-5p regulated the anti-tumor function of SEV in glioma by targeting miR-130a-5p or RPN2. Circ_0037655 affected the expression of RPN2 via targeting miR-130a-5p. Circ_0037655 relieved SEV-induced glioma growth inhibition in vivo by mediating miR-130a-5p and RPN2 levels. SEV inhibited the malignant progression of glioma cells partly by regulating the circ_0037655/miR-130a-5p/RPN2 axis.
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Affiliation(s)
- Jinyou Zhu
- Department of Anesthesiology, Ganzhou People's Hospital, No.16, Meiguan Avenue, Zhanggong District, Ganzhou City, 341000, Jiangxi Province, China
| | - Bin Xie
- Department of Anesthesiology, Ganzhou People's Hospital, No.16, Meiguan Avenue, Zhanggong District, Ganzhou City, 341000, Jiangxi Province, China.
| | - Guiming Huang
- Department of Anesthesiology, Ganzhou People's Hospital, No.16, Meiguan Avenue, Zhanggong District, Ganzhou City, 341000, Jiangxi Province, China
| | - Yiping Li
- Department of Anesthesiology, Ganzhou People's Hospital, No.16, Meiguan Avenue, Zhanggong District, Ganzhou City, 341000, Jiangxi Province, China
| | - Zhenhua Liu
- Department of Anesthesiology, Ganzhou People's Hospital, No.16, Meiguan Avenue, Zhanggong District, Ganzhou City, 341000, Jiangxi Province, China
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Lyu LH, Zhang CY, Yang WJ, Jin AL, Zhu J, Wang H, Liu T, Wang BL, Cheng JW, Yang XR, Guo W. Hsa_circ_0003945 promotes progression of hepatocellular carcinoma by mediating miR-34c-5p/LGR4/β-catenin axis activity. J Cell Mol Med 2022; 26:2218-2229. [PMID: 35170199 PMCID: PMC8995453 DOI: 10.1111/jcmm.17243] [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: 09/22/2021] [Revised: 01/24/2022] [Accepted: 01/31/2022] [Indexed: 12/24/2022] Open
Abstract
Accumulating evidence suggests that circular RNAs (circRNAs) play essential roles in regulating cancer progression, but many circRNAs in hepatocellular carcinoma (HCC) remain unknown. Dysregulated circRNAs in HCC were identified through bioinformatics analysis of Gene Expression Omnibus data sets. Quantitative real‐time PCR (qRT‐PCR), Sanger sequencing, RNase R digestion and actinomycin D treatment were conducted to confirm the characterization of circRNAs. CCK‐8, wound‐healing and Transwell assays were performed to assess the functional roles of Hsa_circ_0003945 (Circ_0003945) in HCC cell lines. Subcellular fractionation and fluorescence in situ hybridization (FISH) were performed to locate Circ_0003945 in HCC cells. Dual‐luciferase reporter assay was executed to verify the binding of Circ_0003945 to microRNAs (miRNAs) or the miRNAs to their target genes. In this study, we found that Circ_0003945 was upregulated in HCC tissue, and higher Circ_0003945 expression was positively correlated with tumour size and tumour stage. Furthermore, high plasma levels of circulating Circ_0003945 were confirmed in HCC patients compared with those in non‐HCC groups. The functional experiments revealed that overexpression or knockdown of Circ_0003945 promoted or attenuated tumour growth and migration, respectively. Mechanistically, Circ_0003945 might exert as a miR‐34c‐5p sponge to upregulate the expression of leucine‐rich repeat‐containing G protein‐coupled receptor 4 (LGR4), activating the β‐catenin pathway, and finally facilitating HCC progression. Additionally, a β‐catenin activator could reverse the effect of Circ_0003945 knockdown. In conclusion, Circ_0003945 exerts a tumour‐promoting role in HCC cells by regulating the miR‐34c‐5p/LGR4/β‐catenin axis, which may be a potential target for HCC therapy.
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Affiliation(s)
- Li-Hua Lyu
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chun-Yan Zhang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Laboratory Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Xiamen, China
| | - Wen-Jing Yang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - An-Li Jin
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jie Zhu
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hao Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bei-Li Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer center, Zhong Shan Hospital, Fudan University, Shanghai, China
| | - Jian-Wen Cheng
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, China
| | - Xin-Rong Yang
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, China
| | - Wei Guo
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Laboratory Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Xiamen, China.,Cancer center, Zhong Shan Hospital, Fudan University, Shanghai, China.,Department of Laboratory Medicine, Wusong Branch, Zhongshan Hospital, Fudan University, Shanghai, China
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Jin L, Zhang Y, Jiang Y, Tan M, Liu C. Circular RNA Rbms1 inhibited the development of myocardial ischemia reperfusion injury by regulating miR-92a/BCL2L11 signaling pathway. Bioengineered 2022; 13:3082-3092. [PMID: 35068339 PMCID: PMC8973616 DOI: 10.1080/21655979.2022.2025696] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Acute myocardial infarction (AMI) is characterized by high morbidity and mortality rates. Circular RNAs collectively participate in the initiation and development of AMI. The purpose of this study was to investigate the role of circRbms1 in AMI. Ischemia-reperfusion (I/R) was performed to establish an AMI model. RT-qPCR and Western blotting were performed to detect mRNA and analyze protein expression, respectively. The interaction between miR-92a and circRbms1/BCL2L11 was confirmed by luciferase and RNA pull-down assays. circRbms1 is overexpressed in AMI. However, circRbms1 knockdown alleviated H9c2 cell apoptosis and reduced the release of reactive oxygen species. circRbms1 targeted miR-92a, the downregulation of which alleviated the effects of circRbms1 knockdown and increased oxidative stress and H9c2 cell apoptosis. Moreover, circRbms1 sponged miR-92a to upregulate BCL2L11, which modulated the expression of apoptosis-related genes. circRbms1 participated in myocardial I/R injury by regulating the miR-92a/BCL2L11 signaling pathway, which may provide a new strategy for the treatment of AMI.
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Affiliation(s)
- Ling Jin
- Department of Clinical Laboratory, Nanjing First Hospital, Affiliated to Nanjing Medical University, Nanjing, China
| | - Yuan Zhang
- Department of Clinical Laboratory, Nanjing First Hospital, Affiliated to Nanjing Medical University, Nanjing, China
| | - Yun Jiang
- Department of Clinical Laboratory, Nanjing First Hospital, Affiliated to Nanjing Medical University, Nanjing, China
| | - Mingjuan Tan
- Department of Clinical Laboratory, Nanjing First Hospital, Affiliated to Nanjing Medical University, Nanjing, China
| | - Caidong Liu
- Department of Clinical Laboratory, Nanjing First Hospital, Affiliated to Nanjing Medical University, Nanjing, China
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39
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Xing Z, Li S, Liu Z, Zhang C, Bai Z. CircSERPINA3 regulates SERPINA3-mediated apoptosis, autophagy and aerobic glycolysis of prostate cancer cells by competitively binding to MiR-653-5p and recruiting BUD13. J Transl Med 2021; 19:492. [PMID: 34861864 PMCID: PMC8642898 DOI: 10.1186/s12967-021-03063-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Prostate cancer (PCa) belongs to an epithelial malignancy that occurs in the prostate gland and is the most common malignancy of the male genitourinary system. Referring to related literature, circSERPINA3 has been reported to be up-regulated in PCa. However, its biological function remains unclear. PURPOSE This study aimed to reveal the specific role and relevant molecular mechanism of circSERPINA3 in PCa. METHODS RT-qPCR was used to examine gene expression and functional analyses were conducted to verify the effect of circSERPINA3 on cell apoptosis, autophagy and aerobic glycolysis in PCa cells. Mechanism assays were applied to evaluate the relationship among circSERPINA3/miR-653-5p/SERPINA3/BUD13. RESULTS CircSERPINA3 was verified to be up-regulated in PCa cells and to inhibit cell apoptosis while promoting aerobic glycolysis and autophagy in PCa cells. CircSERPINA3 and SERPINA3 were also testified to bind to miR-653-5p through a line of mechanism experiments. Moreover, it was discovered that circSERPINA3 could stabilize SERPINA3 mRNA via recruiting BUD13. Additionally, SERPINA3 was verified to inhibit cell apoptosis, while promoting aerobic glycolysis and autophagy in PCa cells. CONCLUSIONS Our study suggested that circSERPINA3 regulated apoptosis, autophagy and aerobic glycolysis of PCa cells by competitively binding to miR-653-5p and recruiting BUD13.
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Affiliation(s)
- Zengshu Xing
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China.
| | - Sailian Li
- Department of Gastroenterology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No.43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China
| | - Zhenxiang Liu
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China
| | - Chong Zhang
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China
| | - Zhiming Bai
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China
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Xu Z, Zhong K, Guo G, Xu C, Song Z, Wang D, Pan J. circ_TGFBR2 Inhibits Vascular Smooth Muscle Cells Phenotypic Switch and Suppresses Aortic Dissection Progression by Sponging miR-29a. J Inflamm Res 2021; 14:5877-5890. [PMID: 34795497 PMCID: PMC8593842 DOI: 10.2147/jir.s336094] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/22/2021] [Indexed: 12/20/2022] Open
Abstract
Background Aortic dissection (AD) is a threatening and catastrophic vascular disease with high mortality rate and limited therapeutic strategies. There is emerging evidence showing that circular RNAs play crucial role in regulating various cardiovascular diseases. However, the biological functions and molecular mechanisms of circRNAs in AD still remains elusive. The purpose of this study was to illustrate the potential functional roles and mechanisms of hsa_circ_TGFBR2 in vitro and in vivo. Methods The vascular smooth muscle cells (VSMCs) and AD-VSMCs were isolated from normal aorta and AD tissues. The expression of circ_TGFBR2, miR-29a and KLF4 were detected by realtime polymerase chain reaction (RT-PCR) and fluorescence in situ hybridization (FISH). Cell proliferation was assessed by CCK-8 assay, colony formation and EDU assay. Cell migration was evaluated through transwell assay. Dual-luciferase reporter assay and RNA pulldown were performed to identify the interaction between circ_TGFBR2 and miR-29a or between miR-29a and KLF4. The wild-type sequence of circ_TGFBR2 or KLF4 were cloned into the luciferase reporter plasmid, and the activity was measured using dual-luciferase reporter assay system. And for RNA pulldown, the relative RNA enrichment of circ_TGFBR2 and miR-29a were confirmed using RT-PCR. Western Blot measured the expression of phenotype switch-related proteins. AD rat model induced by β-aminopropionitrile monofumarate (BAPN) was used to verify the role and mechanism of circ_TGFBR2. Results Circ_TGFBR2 inhibited cell proliferation and migration of AD-VSMCs cells. Overexpression of circ_TGFBR2 promoted the expression of contractile markers (α-SMA, SM22α) and inhibited the expression of synthetic markers (MGP, OPN) in AD-VSMCs cells. Circ_TGFBR2 served as a sponge for miR-29a targeting KLF4. MiR-29a mimics rescued biological roles induced by circ_TGFBR2 overexpression. The in vivo experiments revealed that overexpression of TGFBR2 suppressed the progression of AD and increased the expression of contractile markers while inhibited the expression of synthetic markers. Conclusion Our study revealed that circ_TGFBR2 regulated VSMCs phenotype switch and suppressed the progression of AD.
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Affiliation(s)
- Zhenjun Xu
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Kai Zhong
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, People's Republic of China
| | - Guanjun Guo
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Can Xu
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Zhizhao Song
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Dongjin Wang
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Jun Pan
- Department of Thoracic and Cardiovascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
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Gaffo E, Buratin A, Dal Molin A, Bortoluzzi S. Bioinformatic Analysis of Circular RNA Expression. Methods Mol Biol 2021; 2348:343-370. [PMID: 34160817 DOI: 10.1007/978-1-0716-1581-2_22] [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: 02/25/2023]
Abstract
Circular RNAs (circRNAs) are stable RNA molecules generated by backsplicing that play regulatory functions through interaction with other RNA and proteins, as well as by encoding peptides. Dysregulation of circRNA expression can drive cancer development and progression with different mechanisms. CircRNAs are currently regarded as extremely attractive molecules in cancer research for the identification of new and possibly targetable disease regulatory networks and for the development of biomarkers for cancer diagnosis, prognosis definition, and monitoring. Using specific experimental and computational protocols, circRNAs can be identified through RNA-seq by spotting the reads spanning backsplice junctions, which are specific to circular molecules. In this chapter, we report a state-of-the-art computational protocol for a genome-wide analysis of circRNAs from RNA-seq data, which considers circRNA detection, quantification, and differential expression testing. Finally, we indicate how to determine circular transcript sequences and the resources for an in silico functional characterization of circRNAs.
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Affiliation(s)
- Enrico Gaffo
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Alessia Buratin
- Department of Molecular Medicine, University of Padova, Padova, Italy.,Department of Biology, University of Padova, Padova, Italy
| | - Anna Dal Molin
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Stefania Bortoluzzi
- Department of Molecular Medicine, University of Padova, Padova, Italy. .,Interdepartmental Research Center for Innovative Biotechnologies (CRIBI), University of Padova, Padova, Italy.
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42
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Hu Y, Yang R, Zhao W, Liu C, Tan Y, Pu D, Song J, Zhang Y. circRNA expression patterns and circRNA-miRNA-mRNA networks during CV-A16 infection of SH-SY5Y cells. Arch Virol 2021; 166:3023-3035. [PMID: 34410499 PMCID: PMC8373607 DOI: 10.1007/s00705-021-05190-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/08/2021] [Indexed: 11/05/2022]
Abstract
Coxsackievirus A16 (CV-A16) has caused worldwide epidemics of hand, foot, and mouth disease (HFMD) in infants and preschool children. Circular RNAs (circRNAs), a class of noncoding RNA molecules, participate in the progression of viral infectious diseases. Although the function of circRNAs has been a heavily researched topic, their role in CV-A16 infection is still unclear. In this study, the viral effects of CV-A16 on the cellular circRNA transcriptome were investigated using next-generation sequencing technology. The results showed that a total of 8726, 8611, and 6826 circRNAs were identified at 0, 12, and 24 h postinfection, respectively. Moreover, it was found that 1769 and 1192 circRNAs were differentially expressed in at 12 and 24 h postinfection, respectively. The common differentially expressed circRNAs were used for functional annotation analysis, and it was found that the parent genes of differentially expressed circRNAs might be associated with the viral infection process, especially the “Immune system process” in GO analysis and the “Inflammation mediated by chemokine and cytokine signaling pathway” in KEGG analysis. Subsequently, circRNA-miRNA-mRNA regulatory networks were constructed, and the hsa_circ_0004447/hsa-miR-942-5p/MMP2, hsa_circ_0078617/hsa-miR-6780b-5p/MMP2 and hsa_circ_0078617/hsa-miR-5196-5p/MMP2 regulatory axes were identified by enrichment analysis as important networks during the progression of CV-A16 infection. Finally, six dysregulated circRNAs were selected for validation and were verified to be consistent with the sequencing results. Considering all of these results, to the best of our knowledge, this study is the first to present a comprehensive overview of circRNAs induced by CV-A16 infection, and this research demonstrated that a network of enriched circRNAs and circRNA-associated competitive endogenous RNAs (ceRNAs) is involved in the regulation of CV-A16 infection, thereby helping to elucidate the mechanisms underlying CV-A16-host interactions.
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Affiliation(s)
- Yajie Hu
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China.,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.,Yunnan Provincial Key Laboratory of Clinical Virology, Kunming, China
| | - Ruian Yang
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China.,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Wei Zhao
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China.,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Chen Liu
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China.,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yan Tan
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China.,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Dandan Pu
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China.,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Jie Song
- Institute of Medical Biology, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.
| | - Yunhui Zhang
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China. .,The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.
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43
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Pan Y, Lei X, Zhang Y. Association predictions of genomics, proteinomics, transcriptomics, microbiome, metabolomics, pathomics, radiomics, drug, symptoms, environment factor, and disease networks: A comprehensive approach. Med Res Rev 2021; 42:441-461. [PMID: 34346083 DOI: 10.1002/med.21847] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 05/22/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022]
Abstract
Currently, the research of multi-omics, such as genomics, proteinomics, transcriptomics, microbiome, metabolomics, pathomics, and radiomics, are hot spots. The relationship between multi-omics data, drugs, and diseases has received extensive attention from researchers. At the same time, multi-omics can effectively predict the diagnosis, prognosis, and treatment of diseases. In essence, these research entities, such as genes, RNAs, proteins, microbes, metabolites, pathways as well as pathological and medical imaging data, can all be represented by the network at different levels. And some computer and biology scholars have tried to use computational methods to explore the potential relationships between biological entities. We summary a comprehensive research strategy, that is to build a multi-omics heterogeneous network, covering multimodal data, and use the current popular computational methods to make predictions. In this study, we first introduce the calculation method of the similarity of biological entities at the data level, second discuss multimodal data fusion and methods of feature extraction. Finally, the challenges and opportunities at this stage are summarized. Some scholars have used such a framework to calculate and predict. We also summarize them and discuss the challenges. We hope that our review could help scholars who are interested in the field of bioinformatics, biomedical image, and computer research.
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Affiliation(s)
- Yi Pan
- Faculty of Computer Science and Control Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiujuan Lei
- School of Computer Science, Shaanxi Normal University, Xi'an, China
| | - Yuchen Zhang
- School of Computer Science, Shaanxi Normal University, Xi'an, China
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Li H, Xia Z, Liu L, Pan G, Ding J, Liu J, Kang J, Li J, Jiang D, Liu W. Astragalus IV Undermines Multi-Drug Resistance and Glycolysis of MDA-MB-231/ADR Cell Line by Depressing hsa_circ_0001982-miR-206/miR-613 Axis. Cancer Manag Res 2021; 13:5821-5833. [PMID: 34326666 PMCID: PMC8314933 DOI: 10.2147/cmar.s297008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 06/04/2021] [Indexed: 01/13/2023] Open
Abstract
Background Allowing for the power of astragalus in improving cancer patients’ response to chemotherapy, we endeavored to clarify if hsa_circ_0001982-centered miRNA axes participated in the impact of astragaloside IV on multi-drug resistance (MDR) of triple-negative breast cancer (TNBC). Methods TNBC patients were recruited into an Astragalus detoxification decoction (ADD) treatment group (N=62) and a non-ADD treatment group (N=78), according to whether they consumed ADD after chemotherapy or not. Furthermore, drug resistance of the MDA-MB-231/ADR cell line in response to gemcitabine (GEM), adriamycin (ADM), oxaliplatin (OXA), and cisplatin (DDP) was evaluated, and glycolytic potential of MDA-MB-231/ADR cells was determined after astragaloside IV treatment or si-hsa_circ_0001982/miR-206 inhibitor/miR-613 inhibitor transfection. Results TNBC patients receiving ADD adjuvant therapy after chemotherapy, with decreased serum level of hsa_circ_0001982 and increased serum level of miR-206/miR-613 as relative to non-ADD treatment group (P<0.05), were less likely to relapse than TNBC population not undergoing ADD treatment (P<0.05). In addition, GEM/ADM/OXA/DDP-resistance and glycolysis of MDA-MB-231/ADR cell line were debilitated after exposure to astragaloside IV or transfection by si-hsa_circ_0001982 (P<0.05). Nonetheless, miR-206/miR-613 inhibitor transfection reversed inhibitory effects of si-hsa_circ_0001982 and astragaloside IV on glycolysis and MDR of MDA-MB-231/ADR cell line (P<0.05). Conclusion Astragaloside IV undermined MDR and glycolysis of MDA-MB-231/ADR cell line by blocking hsa_circ_0001982-miR-206/miR-613 axis.
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Affiliation(s)
- Hongchang Li
- Department of General Surgery, Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, 201100, People's Republic of China
| | - Zhihua Xia
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, People's Republic of China
| | - Limin Liu
- Department of Medical Rehabilitation, Heze Domestic Professional College, Heze, 274300, Shandong, People's Republic of China
| | - Gaofeng Pan
- Department of General Surgery, Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, 201100, People's Republic of China
| | - Junbin Ding
- Department of General Surgery, Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, 201100, People's Republic of China
| | - Jiazhe Liu
- Department of General Surgery, Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, 201100, People's Republic of China
| | - Jie Kang
- Department of General Surgery, Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, 201100, People's Republic of China
| | - Jindong Li
- Department of General Surgery, Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, 201100, People's Republic of China
| | - Daowen Jiang
- Department of General Surgery, Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, 201100, People's Republic of China
| | - Weiyan Liu
- Department of General Surgery, Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, 201100, People's Republic of China
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Gao R, Ye H, Gao Q, Wang N, Zhou Y, Duan H. Inhibition of circular RNA_0000285 prevents cell proliferation and induces apoptosis in thyroid cancer by sponging microRNA-654-3p. Oncol Lett 2021; 22:673. [PMID: 34345298 PMCID: PMC8323011 DOI: 10.3892/ol.2021.12934] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 05/25/2021] [Indexed: 12/17/2022] Open
Abstract
Thyroid cancer is derived from follicular or thyroid cells and has become the most prevalent malignant tumor of endocrine organs, with increased morbidity and mortality. Circular RNAs (circRNAs) are used as prognostic and predictive markers for different types of cancer. However, the role of circRNA_0000285 in thyroid cancer and its potential molecular mechanism remain unclear. The present study aimed to investigate the roles and underlying molecular mechanism of circRNA_0000285 in thyroid cancer to identify novel treatments for this disease. The target binding site of circRNA_0000285 and microRNA-654-3p (miR-654-3p) were predicted and confirmed via the dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. Thyroid cancer cell viability and apoptosis were determined via the MTT assay and flow cytometric analysis, respectively, whereas the expression levels of circRNA_0000285 and miR-654-3p were determined via reverse transcription-quantitative PCR analysis. In addition, the protein expression levels of the apoptosis-associated proteins, Bax and B-cell lymphoma 2 (Bcl-2), were detected via western blotting. The results of the dual-luciferase reporter and RIP assays demonstrated that miR-654-3p directly targeted circRNA_0000285. The expression levels of circRNA_0000285 and miR-654-3p in thyroid cancer cells (TPC-1 and FTC133) were upregulated and downregulated, respectively. Knockdown of circRNA_0000285 via small interfering (si)RNA inhibited circRNA_0000285 levels and increased miR-654-3p levels. In addition, miR-654-3p expression decreased following transfection with miR-654-3p inhibitor. Functional experiments demonstrated that circRNA_0000285-siRNA decreased thyroid cancer cell proliferation, promoted cell apoptosis, enhanced Bax expression and suppressed Bcl-2 expression. All these effects were reversed following transfection with miR-654-3p inhibitor. Taken together, the results of the present study suggest that circRNA_0000285 plays a vital role in thyroid cancer progression by regulating miR-654-3p, which provides a potential therapeutic target for this disease.
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Affiliation(s)
- Rongjun Gao
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Hui Ye
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Qingjun Gao
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Nanpeng Wang
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yan Zhou
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Haisong Duan
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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46
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Shu L, Zhou C, Yuan X, Zhang J, Deng L. MSCFS: inferring circRNA functional similarity based on multiple data sources. BMC Bioinformatics 2021; 22:371. [PMID: 34271851 PMCID: PMC8285884 DOI: 10.1186/s12859-021-04287-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 07/06/2021] [Indexed: 12/13/2022] Open
Abstract
Background More and more evidence shows that circRNA plays an important role in various biological processes and human health. Therefore, inferring the circRNA’s potential functions and obtaining circRNA functional similarity has become more and more significant. However, there is no effective approach to explore the functional similarity of circRNAs. Methods In this paper, we propose a new approach, called MSCFS, to calculate the functional similarity of circRNA by integrating multiple data sources. We combine circRNA-disease association, circRNA-gene-Gene Ontology association, and circRNA sequence information to explore the functional similarity of circRNA. Firstly, we employ different learning representation methods from three data sources to establish three circRNA functional similarity networks. Then we integrate the three networks to obtain the final circRNA functional similarity. Results We utilize circRNA–miRNA association similarity and circRNA co-expression similarity to evaluate the performance of MSCFS. The results show a positive correlation with miRNA association (\documentclass[12pt]{minimal}
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\begin{document}$$R=0.213$$\end{document}R=0.213) and circRNA co-expression similarity (\documentclass[12pt]{minimal}
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\begin{document}$$R=0.8991$$\end{document}R=0.8991). Finally, we construct a circRNA functional similarity network and perform case analysis. The result shows our method can be applied to infer new potential functions of circRNA and other associations. Conclusions MSCFS combines multiple data sources related to circRNA functions. Correlation analysis and case analyses prove that MSCFS is a useful method to explore circRNA functional similarity.
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Affiliation(s)
- Liang Shu
- School of Computer Science and Engineering, Central South University, Lushangnan Road, Changsha, China
| | - Cheng Zhou
- School of Computer Science and Engineering, Central South University, Lushangnan Road, Changsha, China
| | - Xinxu Yuan
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Jingpu Zhang
- School of Computer and Data Science, Henan University of Urban Construction, Longxiang Road, Pingdingshan, 467000, China
| | - Lei Deng
- School of Computer Science and Engineering, Central South University, Lushangnan Road, Changsha, China.
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Hu Y, Xu Y, Deng X, Wang R, Li R, You L, Song J, Zhang Y. Comprehensive analysis of the circRNA expression profile and circRNA-miRNA-mRNA network in the pathogenesis of EV-A71 infection. Virus Res 2021; 303:198502. [PMID: 34252490 DOI: 10.1016/j.virusres.2021.198502] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/28/2021] [Accepted: 07/04/2021] [Indexed: 02/07/2023]
Abstract
Enterovirus A71 (EV-A71) is an important emerging virus posing a threat to children under five years old. Circular RNAs (circRNAs), a novel class of endogenous RNAs, have been recognized to play important roles in the onset and development of viral diseases. However, it has not been determined which specific circRNAs are involved in the pathological mechanisms of EV-A71 infection. In this study, RNA-sequencing (RNA-seq) was conducted to characterize differentially expressed circRNAs during the process of EV-A71 infection. Overall, 8726, 10405 and 4710 circRNAs were detected in the control, EV-A71-12 h and EV-A71-24 h groups, respectively, of which 1851 and 951 circRNAs were differentially expressed in the EV-A71-12 h and EV-A71-24 h groups versus the control group. The overlapping circRNAs in the EV-A71-infected groups were subjected to Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis, which further demonstrated that the host genes of these circRNAs were principally implicated in activities associated with the progression of viral infection, such as immune system process, Wnt signaling pathway, etc. Additionally, qRT-PCR detection showed that six selected circRNAs were identical to the sequencing data. To excavate the key circRNAs in EV-A71 infection, we comprehensively evaluated and integrated the relationship of circRNA/miRNA/mRNA, and eventually screened 2 key circRNA regulatory axes, namely hsa_circ_0017115/hsa-miR-150-5p/EGR1 and hsa_circ_0005060/hsa-miR-4685-5p/MMP2. In summary, our findings not only provide the first comprehensive expression and functional profile of circRNAs in response to EV-A71 infection, but also offer a novel direction to elucidate the molecular mechanism underlying viral pathogenesis and the cellular immune response in host-EV-A71 interactions.
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Affiliation(s)
- Yajie Hu
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yanyan Xu
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xiaoli Deng
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Ruibing Wang
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Rufang Li
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Ling You
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Jie Song
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China.
| | - Yunhui Zhang
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.
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Buratin A, Gaffo E, Dal Molin A, Bortoluzzi S. CircIMPACT: An R Package to Explore Circular RNA Impact on Gene Expression and Pathways. Genes (Basel) 2021; 12:genes12071044. [PMID: 34356060 PMCID: PMC8308052 DOI: 10.3390/genes12071044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/25/2021] [Accepted: 07/02/2021] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) are transcripts generated by back-splicing. CircRNAs might regulate cellular processes by different mechanisms, including interaction with miRNAs and RNA-binding proteins. CircRNAs are pleiotropic molecules whose dysregulation has been linked to human diseases and can drive cancer by impacting gene expression and signaling pathways. The detection of circRNAs aberrantly expressed in disease conditions calls for the investigation of their functions. Here, we propose CircIMPACT, a bioinformatics tool for the integrative analysis of circRNA and gene expression data to facilitate the identification and visualization of the genes whose expression varies according to circRNA expression changes. This tool can highlight regulatory axes potentially governed by circRNAs, which can be prioritized for further experimental study. The usefulness of CircIMPACT is exemplified by a case study analysis of bladder cancer RNA-seq data. The link between circHIPK3 and heparanase (HPSE) expression, due to the circHIPK3-miR558-HPSE regulatory axis previously determined by experimental studies on cell lines, was successfully detected. CircIMPACT is freely available at GitHub.
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Affiliation(s)
- Alessia Buratin
- Department of Biology, University of Padova, 35131 Padova, Italy;
- Department of Molecular Medicine, University of Padova, 35131 Padova, Italy; (E.G.); (A.D.M.)
| | - Enrico Gaffo
- Department of Molecular Medicine, University of Padova, 35131 Padova, Italy; (E.G.); (A.D.M.)
| | - Anna Dal Molin
- Department of Molecular Medicine, University of Padova, 35131 Padova, Italy; (E.G.); (A.D.M.)
| | - Stefania Bortoluzzi
- Department of Molecular Medicine, University of Padova, 35131 Padova, Italy; (E.G.); (A.D.M.)
- Interdepartmental Research Center for Innovative Biotechnologies (CRIBI), University of Padova, 35131 Padova, Italy
- Correspondence:
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Yesharim L, Mojbafan M, Abiri M. Hints From the Cellular Functions to the Practical Outlook of Circular RNAs. Front Genet 2021; 12:679446. [PMID: 34220952 PMCID: PMC8247595 DOI: 10.3389/fgene.2021.679446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/25/2021] [Indexed: 12/29/2022] Open
Abstract
Although it has been about 30 years since the discovery of circular RNAs (circRNAs) in mammalian cells, these subtypes of RNAs' capabilities have come into focus in recent years. The unique structure and various functional roles of circRNAs in many cellular processes have aroused researchers' interest and raised many questions about whether circRNAs can facilitate the diagnosis and treatment of diseases. To answer these questions, we will illustrate the main known functions and regulatory roles of circRNAs in the cell after presenting a brief history of the discovery of circRNAs and the main proposed theories of the biogenesis of circRNAs. Afterward, the practical application of circRNAs as biomarkers of different pathophysiological conditions will be discussed, mentioning some examples and challenges in this area. We also consider one of the main questions that human beings have always been faced, "the origin of life," and its possible connection to circRNAs. Finally, focusing on the various capabilities of circRNAs, we discuss their potential therapeutic applications considering the immunity response toward exogenous circRNAs. However, there are still disputes about the exact immune system reaction, which we will discuss in detail.
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Affiliation(s)
- Liora Yesharim
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Marzieh Mojbafan
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Genetics, Ali-Asghar Children’s Hospital, Tehran, Iran
| | - Maryam Abiri
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
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50
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Xu Q, Cheng D, Li G, Liu Y, Li P, Sun W, Ma D, Ni C. CircHIPK3 regulates pulmonary fibrosis by facilitating glycolysis in miR-30a-3p/FOXK2-dependent manner. Int J Biol Sci 2021; 17:2294-2307. [PMID: 34239356 PMCID: PMC8241722 DOI: 10.7150/ijbs.57915] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 05/22/2021] [Indexed: 01/19/2023] Open
Abstract
Pulmonary fibrosis develops when myofibroblasts and extracellular matrix excessively accumulate in the injured lung, but what drives fibrosis is not fully understood. Glycolysis has been linked to cell growth and proliferation, and several studies have shown enhanced glycolysis promotes pulmonary fibrosis. However, detailed studies describing this switch remain limited. Here, we identified that TGF-β1 effectively increased the expression of circHIPK3 in lung fibroblasts, and circHIPK3 inhibition attenuated the activation, proliferation, and glycolysis of fibroblasts in vitro. Dual-luciferase reporter gene assays, RNA immunoprecipitation (RIP), and RNA pull-down assays showed that circHIPK3 could function as a sponge of miR-30a-3p and inhibit its expression. Furthermore, FOXK2, a driver transcription factor of glycolysis, was identified to be a direct target of miR-30a-3p. Mechanistically, circHIPK3 could enhance the expression of FOXK2 via sponging miR-30a-3p, thereby facilitating fibroblast glycolysis and activation. Besides, miR-30a-3p overexpression or FOXK2 knockdown blocked fibroblast activation induced by TGF-β1 and abrogated the profibrotic effects of circHIPK3. Moreover, circHIPK3 and miR-30a-3p were also dysregulated in fibrotic murine lung tissues induced by silica. Adeno-associated virus (AAV)-mediated circHIPK3 silence or miR-30a-3p overexpression alleviated silica-induced pulmonary fibrosis in vivo. In conclusion, our results identified circHIPK3/miR-30a-3p/FOXK2 regulatory pathway as an important glycolysis cascade in pulmonary fibrosis.
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Affiliation(s)
- Qi Xu
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Demin Cheng
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Guanru Li
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yi Liu
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Ping Li
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Wenqing Sun
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Dongyu Ma
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Chunhui Ni
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
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