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Liu Z, Du D, Zhang S. Tumor-derived exosomal miR-1247-3p promotes angiogenesis in bladder cancer by targeting FOXO1. Cancer Biol Ther 2024; 25:2290033. [PMID: 38073044 PMCID: PMC10761019 DOI: 10.1080/15384047.2023.2290033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Tumor-derived exosomes are highly correlated with tumor progression and angiogenesis. This study was designed to probe the role of tumor-derived exosomal miR-1247-3p in mediating the angiogenesis in bladder cancer. Exosomes isolation from the culture medium of normal or bladder cancer cell lines was performed using a differential centrifugation method. miR-1247-3p expression in exosomes and cells was detected by quantitative real-time PCR (qRT-PCR). The effect of exosomes on the angiogenesis of human umbilical vein endothelial cells (HUVECs) was assessed using cell counting kit-8 (CCK-8), transwell and tube formation assays. The interaction between miR-1247-3p and forkhead box protein O1 (FOXO1) was studied using luciferase reporter and RNA pull down assays. Exosomes were successfully isolated from T24, UM-UC-3, and SV-HUC-1 cells, as confirmed by corresponding identifications. Functional experiments revealed that exosomes derived from T24 and UM-UC-3 cells significantly enhanced the abilities of proliferation, migration, angiogenesis, and vascular endothelial-derived growth factor (VEGF) secretion in HUVECs. miR-1247-3p was highly expressed in exosomes derived from T24 and UM-UC-3 cells, and exosomes derived from miR-1247-3p inhibitor-transfected cells reduced HUVEC viability, migration, tube formation, and VEGF level. FOXO1 was confirmed as a direct target of miR-1247-3p. Rescue assays suggested that the effect of miR-1247-3p inhibition on the viability, migration, and angiogenesis of HUVECs was partly abrogated by the knockdown of FOXO1. Our data suggest that miR-1247-3p is up-regulated in tumor-derived exosomes, thereby inhibiting FOXO1 expression and facilitating angiogenesis in bladder cancer.
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Affiliation(s)
- Zonglai Liu
- Medical College, China Three Gorges University, Yichang, Hubei, China
- Department of Urology, The Second People’s Hospital of China Three Gorges University, Yichang, Hubei, China
| | - Dan Du
- Medical College, China Three Gorges University, Yichang, Hubei, China
- Department of Urology, The Second People’s Hospital of China Three Gorges University, Yichang, Hubei, China
| | - Shizhong Zhang
- Medical College, China Three Gorges University, Yichang, Hubei, China
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, Hubei, China
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Dai D, Zhuang H, Shu M, Chen L, Long C, Wu H, Chen B. Identification of N7-methylguanosine-related miRNAs as potential biomarkers for prognosis and drug response in breast cancer. Heliyon 2024; 10:e29326. [PMID: 38628712 PMCID: PMC11017060 DOI: 10.1016/j.heliyon.2024.e29326] [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: 10/07/2023] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 04/19/2024] Open
Abstract
Objectives The impact of N7-methylguanosine (m7G) on tumor progression and the regulatory role of microRNAs (miRNAs) in immune function significantly influence breast cancer (BC) prognosis. Investigating the interplay between m7G modification and miRNAs provides novel insights for assessing prognostics and drug responses in BC. Materials and methods RNA sequences (miRNA and mRNA profiles) and clinical data for BC were acquired from the Cancer Genome Atlas (TCGA) database. A miRNA signature associated with 15 m7G in this cohort was identified using Cox regression and LASSO. The risk score model was evaluated using Kaplan-Meier and time-dependent ROC analysis, categorizing patients into high-risk and low-risk groups. Functional enrichment analyses were conducted to explore potential pathways. The immune system, including scores, cell infiltration, function, and drug sensitivity, was examined and compared between high-risk and low-risk groups. A nomogram that combines risk scores and clinical factors was developed and validated. Single-sample gene set enrichment analysis (ssGSEA) was employed to explore m7G-related miRNA signatures and immune cell relationships in the tumor microenvironment. Additionally, drug susceptibility was compared between risk groups. Results Fifteen m7G-related miRNAs were independently correlated with overall survival (OS) in BC patients. Time-dependent ROC analysis yielded area under the curve (AUC) values of 0.742, 0.726, and 0.712 for predicting 3-, 5-, and 10-year survival rates, respectively. The Kaplan-Meier analysis revealed a significant disparity in OS between the high-risk and low-risk groups (p = 1.3e-6). Multiple regression identified the risk score as a significant independent prognostic factor. An excellent calibration nomogram with a C-index of 0.785 (95 % CI: 0.728-0.843) was constructed. In immune analysis, low-risk patients exhibited heightened immune function and increased responsiveness to immunotherapy and chemotherapy compared to high-risk patients. Conclusion This study systematically analyzed m7G-related miRNAs and revealed their regulatory mechanisms concerning the tumor microenvironment (TME), pathology, and the prognosis of BC patient. Based on these miRNAs, a prognostic model and nomogram were developed for BC patients, facilitating prognostic assessments. These findings can also assist in predicting treatment responses and guiding medication selection.
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Affiliation(s)
- Danian Dai
- Department of Vascular and Plastic Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China
| | - Hongkai Zhuang
- Department of Hepatobiliary Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Mao Shu
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, Guangdong, China
| | - Lezi Chen
- Department of Vascular and Plastic Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China
| | - Chen Long
- Department of Pathology, Yueyang Maternal Child Health-Care Hospital, Yueyang, 414000, Hunan, China
| | - Hongmei Wu
- Department of Pathology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Bo Chen
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, Guangdong, China
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Zhang C, Yu Z, Yang S, Liu Y, Song J, Mao J, Li M, Zhao Y. ZNF460-mediated circRPPH1 promotes TNBC progression through ITGA5-induced FAK/PI3K/AKT activation in a ceRNA manner. Mol Cancer 2024; 23:33. [PMID: 38355583 PMCID: PMC10865535 DOI: 10.1186/s12943-024-01944-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/23/2024] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND Circular RNAs are highly stable regulatory RNAs that have been increasingly associated with tumorigenesis and progression. However, the role of many circRNAs in triple-negative breast cancer (TNBC) and the related mechanisms have not been elucidated. METHODS In this study, we screened circRNAs with significant expression differences in the RNA sequencing datasets of TNBC and normal breast tissues and then detected the expression level of circRPPH1 by qRT‒PCR. The biological role of circRPPH1 in TNBC was then verified by in vivo and in vitro experiments. Mechanistically, we verified the regulatory effects between circRPPH1 and ZNF460 and between circRPPH1 and miR-326 by chromatin immunoprecipitation (ChIP), fluorescence in situ hybridization assay, dual luciferase reporter gene assay and RNA pull-down assay. In addition, to determine the expression of associated proteins, we performed immunohistochemistry, immunofluorescence, and western blotting. RESULTS The upregulation of circRPPH1 in TNBC was positively linked with a poor prognosis. Additionally, both in vivo and in vitro, circRPPH1 promoted the biologically malignant behavior of TNBC cells. Additionally, circRPPH1 may function as a molecular sponge for miR-326 to control integrin subunit alpha 5 (ITGA5) expression and activate the focal adhesion kinase (FAK)/PI3K/AKT pathway. CONCLUSION Our research showed that ZNF460 could promote circRPPH1 expression and that the circRPPH1/miR-326/ITGA5 axis could activate the FAK/PI3K/AKT pathway to promote the progression of TNBC. Therefore, circRPPH1 can be used as a therapeutic or diagnostic target for TNBC.
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Affiliation(s)
- Chuanpeng Zhang
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, China
| | - Ziyi Yu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, China
| | - Susu Yang
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, China
| | - Yitao Liu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, China
| | - Jiangni Song
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, China
| | - Juan Mao
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, China
| | - Minghui Li
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, China
| | - Yi Zhao
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, China.
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Zhang Z, Gao Z, Fang H, Zhao Y, Xing R. Therapeutic importance and diagnostic function of circRNAs in urological cancers: from metastasis to drug resistance. Cancer Metastasis Rev 2024:10.1007/s10555-023-10152-9. [PMID: 38252399 DOI: 10.1007/s10555-023-10152-9] [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: 06/10/2023] [Accepted: 10/31/2023] [Indexed: 01/23/2024]
Abstract
Circular RNAs (circRNAs) are a member of non-coding RNAs with no ability in encoding proteins and their aberrant dysregulation is observed in cancers. Their closed-loop structure has increased their stability, and they are reliable biomarkers for cancer diagnosis. Urological cancers have been responsible for high mortality and morbidity worldwide, and developing new strategies in their treatment, especially based on gene therapy, is of importance since these malignant diseases do not respond to conventional therapies. In the current review, three important aims are followed. At the first step, the role of circRNAs in increasing or decreasing the progression of urological cancers is discussed, and the double-edged sword function of them is also highlighted. At the second step, the interaction of circRNAs with molecular targets responsible for urological cancer progression is discussed, and their impact on molecular processes such as apoptosis, autophagy, EMT, and MMPs is highlighted. Finally, the use of circRNAs as biomarkers in the diagnosis and prognosis of urological cancer patients is discussed to translate current findings in the clinic for better treatment of patients. Furthermore, since circRNAs can be transferred to tumor via exosomes and the interactions in tumor microenvironment provided by exosomes such as between macrophages and cancer cells is of importance in cancer progression, a separate section has been devoted to the role of exosomal circRNAs in urological tumors.
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Affiliation(s)
- Zhibin Zhang
- College of Traditional Chinese Medicine, Chengde Medical College, Chengde, 067000, Hebei, China.
| | - Zhixu Gao
- Chengde Medical College, Chengde, 067000, Hebei, China
| | - Huimin Fang
- Chengde Medical College, Chengde, 067000, Hebei, China
| | - Yutang Zhao
- Chengde Medical College, Chengde, 067000, Hebei, China
| | - Rong Xing
- Chengde Medical College, Chengde, 067000, Hebei, China
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Zhang X, Cui S, Ding Y, Li Y, Wu B, Gao J, Li M, Xu L, Xia H. Downregulation of B4GALT5 attenuates cardiac fibrosis through Lumican and Akt/GSK-3β/β-catenin pathway. Eur J Pharmacol 2024; 963:176263. [PMID: 38081351 DOI: 10.1016/j.ejphar.2023.176263] [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: 06/27/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Virtually all forms of cardiac disease exhibit cardiac fibrosis as a common trait, which ultimately leads to adverse ventricular remodeling and heart failure. To improve the prognosis of heart disease, it is crucial to halt the progression of cardiac fibrosis. Protein function is intricately linked with protein glycosylation, a vital post-translational modification. As a fundamental member of the β1,4-galactosyltransferase gene family (B4GALT), β1,4-galactosyltransferase V (B4GALT5) is associated with various disorders. In this study, significant levels of B4GALT5 expression were observed in cardiac fibrosis induced by transverse aortic constriction (TAC) or TGFβ1 and the activation of cardiac fibroblasts (CFs). Subsequently, by administering AAV9-shB4GALT5 injections to TAC animals, we were able to demonstrate that in vivo B4GALT5 knockdown decreased the transformation of CFs into myofibroblasts (myoFBs) and reduced the deposition of cardiac collagen fibers. In vitro tests revealed the same results. Conversely, both in vivo and in vitro experiments indicated that overexpression of B4GALT5 stimulates CFs activation and exacerbates cardiac fibrosis. Initially, we elucidated the primary mechanism by which B4GALT5 regulates the Akt/GSK-3β/β-catenin pathway and directly interacts with laminin, thereby affecting cardiac fibrosis. Our findings demonstrate that B4GALT5 promotes cardiac fibrosis through the Akt/GSK-3β/β-catenin pathway and reveal laminin as the target protein of B4GALT5.
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Affiliation(s)
- Xutao Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, 430060, China
| | - Shengyu Cui
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, 430060, China
| | - Yuewen Ding
- Department of Anesthesiology, Medical Center of Anesthesiology and Pain, The First Affiliated Hospital of Nanchang University, China
| | - Yuhua Li
- Intensive Care Unit, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Bing Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, 430060, China
| | - Jixian Gao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, 430060, China
| | - Ming Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, 430060, China
| | - Lin Xu
- Department of Geriatrics, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China.
| | - Hao Xia
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, 430060, China.
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Wei H, Naruse C, Takakura D, Sugihara K, Pan X, Ikeda A, Kawasaki N, Asano M. Beta-1,4-galactosyltransferase-3 deficiency suppresses the growth of immunogenic tumors in mice. Front Immunol 2023; 14:1272537. [PMID: 37901252 PMCID: PMC10600447 DOI: 10.3389/fimmu.2023.1272537] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/18/2023] [Indexed: 10/31/2023] Open
Abstract
Background Beta-1,4-galactosyltransferase-3 (B4GALT3) belongs to the family of beta-1,4-galactosyltransferases (B4GALTs) and is responsible for the transfer of UDP-galactose to terminal N-acetylglucosamine. B4GALT3 is differentially expressed in tumors and adjacent normal tissues, and is correlated with clinical prognosis in several cancers, including neuroblastoma, cervical cancer, and bladder cancer. However, the exact role of B4GALT3 in the tumor immune microenvironment (TIME) remains unclear. Here, we aimed to elucidate the function of B4GALT3 in the TIME. Methods To study the functions of B4GALT3 in cancer immunity, either weakly or strongly immunogenic tumor cells were subcutaneously transplanted into wild-type (WT) and B4galt3 knockout (KO) mice. Bone marrow transplantation and CD8+ T cell depletion experiments were conducted to elucidate the role of immune cells in suppressing tumor growth in B4galt3 KO mice. The cell types and gene expression in the tumor region and infiltrating CD8+ T cells were analyzed using flow cytometry and RNA sequencing. N-glycosylated proteins from WT and B4galt3 KO mice were compared using the liquid chromatography tandem mass spectrometry (LC-MS/MS)-based glycoproteomic approach. Results B4galt3 KO mice exhibited suppressed growth of strongly immunogenic tumors with a notable increase in CD8+ T cell infiltration within tumors. Notably, B4galt3 deficiency led to changes in N-glycan modification of several proteins, including integrin alpha L (ITGAL), involved in T cell activity and proliferation. In vitro experiments suggested that B4galt3 KO CD8+ T cells were more susceptible to activation and displayed increased downstream phosphorylation of FAK linked to ITGAL. Conclusion Our study demonstrates that B4galt3 deficiency can potentially boost anti-tumor immune responses, largely through enhancing the influx of CD8+ T cells. B4GALT3 might be suppressing cancer immunity by synthesizing the glycan structure of molecules on the CD8+ T cell surface, as evidenced by the changes in the glycan structure of ITGAL in immune cells. Importantly, B4galt3 KO mice showed no adverse effects on growth, development, or reproduction, underscoring the potential of B4GALT3 as a promising and safe therapeutic target for cancer treatment.
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Affiliation(s)
- Heng Wei
- Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Chie Naruse
- Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Daisuke Takakura
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Kazushi Sugihara
- Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Xuchi Pan
- Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Aki Ikeda
- Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nana Kawasaki
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Masahide Asano
- Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Dabi Y, Favier A, Razakamanantsoa L, Suisse S, Marie Y, Touboul C, Ferrier C, Bendifallah S, Daraï E. Value of non-coding RNAs to assess lymph node status in cervical cancer. Front Oncol 2023; 13:1144672. [PMID: 37234986 PMCID: PMC10206114 DOI: 10.3389/fonc.2023.1144672] [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: 01/14/2023] [Accepted: 04/18/2023] [Indexed: 05/28/2023] Open
Abstract
Cervical cancer (CC) is the fourth cancer in women and is the leading cause of cancer death in 42 countries. Lymph node metastasis is a determinant prognostic factor, as underlined in the latest FIGO classification. However, assessment of lymph node status remains difficult, despite the progress of imaging such as PET-CT and MRI. In the specific setting of CC, all data underlined the need for new biomarkers easily available to assess lymph node status. Previous studies have underlined the potential value of ncRNA expression in gynecological cancers. In this review, we aimed to evaluate the contribution of ncRNAs in tissue and biofluid samples to determine lymph node status in CC with potential impact on both surgical and adjuvant therapies. In tissue samples, our analysis found that there are arguments to support the role of ncRNAs in physiopathology, differential diagnosis from normal tissue, preinvasive and invasive tumors. In biofluids, despite small studies especially concerning miRNAs expression, promising data opens up new avenue to establish a non-invasive signature for lymph node status as well as a tool to predict response to neo- and adjuvant therapies, thus improving management algorithm of patients with CC.
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Affiliation(s)
- Yohann Dabi
- Sorbonne University, Department of Obstetrics and Reproductive Medicine, Hôpital Tenon, Paris, France
- Clinical Research Group (GRC) Paris 6: Centre Expert Endométriose (C3E), Sorbonne University (GRC6 C3E SU), Paris, France
| | - Amelia Favier
- Sorbonne University, Department of Obstetrics and Reproductive Medicine, Hôpital Tenon, Paris, France
- Clinical Research Group (GRC) Paris 6: Centre Expert Endométriose (C3E), Sorbonne University (GRC6 C3E SU), Paris, France
| | - Léo Razakamanantsoa
- Sorbonne University, Inserm UMR S 938, Centre de recherche de saint Antoine (CRSA), Hôpital Saint Antoine, Paris, France
- Department of Radiology imaging and Interventional speciality imaging, Tenon Hospital, Paris, France
| | | | - Yannick Marie
- Gentoyping and Sequencing core facility, iGenSeq, Institut du Cerveau et de la Moelle épinière, Institut du Cerveau et de la Moelle (ICM), Hôpital Pitié-Salpêtrière, Paris, France
| | - Cyril Touboul
- Sorbonne University, Department of Obstetrics and Reproductive Medicine, Hôpital Tenon, Paris, France
- Clinical Research Group (GRC) Paris 6: Centre Expert Endométriose (C3E), Sorbonne University (GRC6 C3E SU), Paris, France
| | - Clément Ferrier
- Sorbonne University, Department of Obstetrics and Reproductive Medicine, Hôpital Tenon, Paris, France
- Clinical Research Group (GRC) Paris 6: Centre Expert Endométriose (C3E), Sorbonne University (GRC6 C3E SU), Paris, France
| | - Sofiane Bendifallah
- Sorbonne University, Department of Obstetrics and Reproductive Medicine, Hôpital Tenon, Paris, France
- Clinical Research Group (GRC) Paris 6: Centre Expert Endométriose (C3E), Sorbonne University (GRC6 C3E SU), Paris, France
| | - Emile Daraï
- Sorbonne University, Department of Obstetrics and Reproductive Medicine, Hôpital Tenon, Paris, France
- Clinical Research Group (GRC) Paris 6: Centre Expert Endométriose (C3E), Sorbonne University (GRC6 C3E SU), Paris, France
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Xu F, Chen R, Shen Y, Liu H, Hu L, Zhu L. CircUBXN7 suppresses cell proliferation and facilitates cell apoptosis in lipopolysaccharide-induced cell injury by sponging miR-622 and regulating the IL6ST/JAK1/STAT3 axis. Int J Biochem Cell Biol 2022; 153:106313. [DOI: 10.1016/j.biocel.2022.106313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 09/26/2022] [Accepted: 10/13/2022] [Indexed: 11/07/2022]
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Zhou Z, Wang T, Du Y, Deng J, Gao G, Zhang J. Identification of a Novel Glycosyltransferase Prognostic Signature in Hepatocellular Carcinoma Based on LASSO Algorithm. Front Genet 2022; 13:823728. [PMID: 35356430 PMCID: PMC8959637 DOI: 10.3389/fgene.2022.823728] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 02/23/2022] [Indexed: 01/10/2023] Open
Abstract
Although many prognostic models have been developed to help determine personalized prognoses and treatments, the predictive efficiency of these prognostic models in hepatocellular carcinoma (HCC), which is a highly heterogeneous malignancy, is less than ideal. Recently, aberrant glycosylation has been demonstrated to universally participate in tumour initiation and progression, suggesting that dysregulation of glycosyltransferases can serve as novel cancer biomarkers. In this study, a total of 568 RNA-sequencing datasets of HCC from the TCGA database and ICGC database were analysed and integrated via bioinformatic methods. LASSO regression analysis was applied to construct a prognostic signature. Kaplan-Meier survival, ROC curve, nomogram, and univariate and multivariate Cox regression analyses were performed to assess the predictive efficiency of the prognostic signature. GSEA and the "CIBERSORT" R package were utilized to further discover the potential biological mechanism of the prognostic signature. Meanwhile, the differential expression of the prognostic signature was verified by western blot, qRT-PCR and immunohistochemical staining derived from the HPA. Ultimately, we constructed a prognostic signature in HCC based on a combination of six glycosyltransferases, whose prognostic value was evaluated and validated successfully in the testing cohort and the validation cohort. The prognostic signature was identified as an independent unfavourable prognostic factor for OS, and a nomogram including the risk score was established and showed the good performance in predicting OS. Further analysis of the underlying mechanism revealed that the prognostic signature may be potentially associated with metabolic disorders and tumour-infiltrating immune cells.
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Affiliation(s)
- Zhiyang Zhou
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Tao Wang
- Department of Day Ward, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yao Du
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Junping Deng
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ge Gao
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jiangnan Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
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Ghafouri-Fard S, Najafi S, Hussen BM, Basiri A, Hidayat HJ, Taheri M, Rashnoo F. The Role of Circular RNAs in the Carcinogenesis of Bladder Cancer. Front Oncol 2022; 12:801842. [PMID: 35296022 PMCID: PMC8918517 DOI: 10.3389/fonc.2022.801842] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/28/2022] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) are a group of transcripts with enclosed configurations which can regulate gene expression. These transcripts have important roles in normal development and in the pathogenesis of disorders. Recent evidence has supported involvement of circRNAs in the development of bladder cancer. Several circRNAs such as circ_0058063, hsa-circRNA-403658, circPDSS1, circCASC15, circRNA-MYLK, and circRNA_103809 have been upregulated in bladder cancer samples. On the other hand, hsa_circ_0137606, BCRC-3, circFUT8, hsa_circ_001598, circSLC8A1, hsa_circ_0077837, hsa_circ_0004826, and circACVR2A are among downregulated circRNAs in bladder cancer. Numerous circRNAs have diagnostic or prognostic value in bladder cancer. In this review, we aim to outline the latest findings about the role of circRNAs in bladder cancer and introduce circRNAs for further investigations as therapeutic targets.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sajad Najafi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Abbas Basiri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hazha Jamal Hidayat
- Department of Biology, College of Education, Salahaddin University-Erbil, Erbil, Iraq
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
- *Correspondence: Mohammad Taheri, ; Fariborz Rashnoo,
| | - Fariborz Rashnoo
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Mohammad Taheri, ; Fariborz Rashnoo,
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Zuo L, Zhu Y, Han J, Liu H. Circular RNA circSHPRH inhibits the malignant behaviors of bladder cancer by regulating the miR-942/BARX2 pathway. Aging (Albany NY) 2022; 14:1891-1909. [PMID: 35200157 PMCID: PMC8908925 DOI: 10.18632/aging.203911] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 12/13/2021] [Indexed: 05/25/2023]
Abstract
Bladder cancer (BCa) is one of the most common tumors of the genitourinary system. However, the detailed molecular mechanism of BCa progression is still unclear. Recently, an increasing number of studies have demonstrated that circular RNAs (circRNAs) play a critical role in the tumorigenesis and progression of BCa. In this article, we showed that circSHPRH expression was obviously decreased in BCa tissues, compared with adjacent normal tissues. Moreover, a low circSHPRH level was positively correlated with a high grade, a high pathological stage, lymphatic metastasis and an unfavorable prognosis for BCa patients. Cell function studies indicated that silencing circSHPRH dramatically increased the proliferation, migration and invasion of BCa cells. Animal experiments revealed that circSHPRH overexpression repressed tumor growth. Mechanistic studies demonstrated that circSHPRH could combine with miR-942 and serve as a sponge of miR-942, which targets BARX2 in BCa cells. Rescue experiments showed that suppression of miR-942 or BARX2 overexpression could significantly abrogate the promoting effects of circSHPRH silencing on BCa cell proliferation and invasion. Furthermore, circSHPRH overexpression partly eliminated the suppressive effects of miR-942 on BARX2 expression. In addition, circSHPRH knockdown promoted activation of the Wnt/β-catenin signaling pathway by regulating BARX2. Taken together, our findings indicate that circSHPRH serves as a sponge of miR-942 to inhibit BCa progression by upregulating BARX2 expression, thereby inhibiting the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Ling Zuo
- Department of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang 524003, Guangdong Province, China
| | - Yi Zhu
- Department of Urology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, Guangdong Province, China
| | - Jinli Han
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Hongwei Liu
- Department of Urology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, Guangdong Province, China
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12
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Chen DL, Sheng H, Zhang DS, Jin Y, Zhao BT, Chen N, Song K, Xu RH. The circular RNA circDLG1 promotes gastric cancer progression and anti-PD-1 resistance through the regulation of CXCL12 by sponging miR-141-3p. Mol Cancer 2021; 20:166. [PMID: 34911533 PMCID: PMC8672580 DOI: 10.1186/s12943-021-01475-8] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 12/04/2021] [Indexed: 12/21/2022] Open
Abstract
Background Dysregulation of circular RNAs (circRNAs) plays an important role in the development of gastric cancer; thus, revealing the biological and molecular mechanisms of abnormally expressed circRNAs is critical for identifying novel therapeutic targets in gastric cancer. Methods A circRNA microarray was performed to identify differentially expressed circRNAs between primary and distant metastatic tissues and between gastric cancer tissues sensitive or resistant to anti-programmed cell death 1 (PD-1) therapy. The expression of circRNA discs large homolog 1 (DLG1) was determined in a larger cohort of primary and distant metastatic gastric cancer tissues. The role of circDLG1 in gastric cancer progression was evaluated both in vivo and in vitro, and the effect of circDLG1 on the antitumor activity of anti-PD-1 was evaluated in vivo. The interaction between circDLG1 and miR-141-3p was assessed by RNA immunoprecipitation and luciferase assays. Results circDLG1 was significantly upregulated in distant metastatic lesions and gastric cancer tissues resistant to anti-PD-1 therapy and was associated with an aggressive tumor phenotype and adverse prognosis in gastric cancer patients treated with anti-PD-1 therapy. Ectopic circDLG1 expression promoted the proliferation, migration, invasion, and immune evasion of gastric cancer cells. Mechanistically, circDLG1 interacted with miR-141-3p and acted as a miRNA sponge to increase the expression of CXCL12, which promoted gastric cancer progression and resistance to anti-PD-1-based therapy. Conclusions Overall, our findings demonstrate how circDLG1 promotes gastric cancer cell proliferation, migration, invasion and immune evasion and provide a new perspective on the role of circRNAs during gastric cancer progression. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01475-8.
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Affiliation(s)
- Dong-Liang Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China. .,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China.
| | - Hui Sheng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Dong-Sheng Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Ying Jin
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Bai-Tian Zhao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Nuo Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Kang Song
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China
| | - Rui-Hua Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, PR China. .,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, 510060, P. R. China.
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13
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Zhang X, Wang P, Yuan K, Li M, Shen Y, Que H, Wang Y, Liang W. Hsa_circ_0024093 accelerates VSMC proliferation via miR-4677-3p/miR-889-3p/USP9X/YAP1 axis in in vitro model of lower extremity ASO. MOLECULAR THERAPY-NUCLEIC ACIDS 2021; 26:511-522. [PMID: 34631281 PMCID: PMC8479279 DOI: 10.1016/j.omtn.2021.07.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/28/2021] [Indexed: 11/18/2022]
Abstract
Arteriosclerosis obliterans (ASO) of the lower extremities is identified as a kind of cardiovascular disease with aberrant proliferation and apoptosis of vascular smooth muscle cells (VSMCs). Accumulating studies have demonstrated the vital role of Yes1-associated transcriptional regulator (YAP1) in VSMCs, while its upstream regulatory mechanism in VSMCs in ASO of the lower extremities needs to be further elucidated. Herein, hsa_circ_0024093, a circular RNA (circRNA) from YAP1, was identified to positively regulate the protein level of YAP1 in VSMCs. Functionally, silencing of hsa_circ_0024093 obviously impeded cell proliferation and migration and promoted apoptosis in VSMCs in the in vitro model of ASO of the lower extremities. Mechanistically, it was found that hsa_circ_0024093 could regulate the expression of USP9X, which further induced YAP1 deubiquitination to stabilize YAP1 protein. In depth, it was revealed from mechanism experiments that hsa_circ_0024093 sequestered miR-889-3p or miR-4677-3p to enhance USP9X expression. Further, rescue assays validated that hsa_circ_0024093 regulated the miR-4677-3p/miR-889-3p/USP9X axis to accelerate the proliferation and migration of VSMCs in the in vitro model of ASO of the lower extremities. These findings may provide a novel perspective for better understanding of ASO of the lower extremities.
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Affiliation(s)
- Xue Zhang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 2000 Jiangyue Road, Shanghai 201112, China
| | - Peng Wang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 2000 Jiangyue Road, Shanghai 201112, China
| | - Kai Yuan
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 2000 Jiangyue Road, Shanghai 201112, China
| | - Maoran Li
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 2000 Jiangyue Road, Shanghai 201112, China
| | - Yiting Shen
- Surgery Department of Traditional Chinese Medicine, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, No. 725 South Wanping Road, Shanghai 200032, China
| | - Huafa Que
- Surgery Department of Traditional Chinese Medicine, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, No. 725 South Wanping Road, Shanghai 200032, China
| | - Yunfei Wang
- Surgery Department of Traditional Chinese Medicine, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, No. 725 South Wanping Road, Shanghai 200032, China
- Corresponding author: Yunfei Wang, Surgery Department of Traditional Chinese Medicine, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, No. 725 South Wanping Road, Shanghai 200032, China.
| | - Wei Liang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 2000 Jiangyue Road, Shanghai 201112, China
- Corresponding author: Wei Liang, Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, No. 2000 Jiangyue Road, Shanghai 201112, China.
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14
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The Emerging Functions of Circular RNAs in Bladder Cancer. Cancers (Basel) 2021; 13:cancers13184618. [PMID: 34572845 PMCID: PMC8464819 DOI: 10.3390/cancers13184618] [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: 08/16/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 12/17/2022] Open
Abstract
Simple Summary The role of circular RNAs has made breakthroughs in understanding the mechanisms of tumor development. Bladder cancer has an increasing incidence, high recurrence rate, high metastatic potential, poor prognosis, and susceptibility to chemotherapy resistance. Thus, it is essential to identify molecules related to the tumorigenesis of bladder cancer. In this review, we summarize current knowledge about the expression of circular RNAs in bladder cancer and their implications in vesical carcinogenesis. We further discuss the limitations of existing studies and provide an outlook for future studies in the hopes of better revealing the association between circular RNAs and bladder cancer. Abstract Bladder cancer (BC) is among the top ten most common cancer types worldwide and is a serious threat to human health. Circular RNAs (circRNAs) are a new class of non-coding RNAs generated by covalently closed loops through back-splicing. As an emerging research hotspot, circRNAs have attracted considerable attention due to their high conservation, stability, abundance, and specificity of tissue development. Accumulating evidence has revealed different form of circRNAs are closely related to the malignant phenotype, prognosis and chemotherapy resistance of BC, suggesting that different circRNAs may be promising biomarkers and have therapeutic significance in BC. The intention of this review is to summarize the mechanisms of circRNA-mediated BC progression and their diagnostic and prognostic value as biomarkers, as well as to further explore their roles in chemotherapy resistance.
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15
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Wang S, Cheng Z, Chen X, Lu G, Zhu X, Xu G. CircUBXN7 mitigates H/R-induced cell apoptosis and inflammatory response through the miR-622-MCL1 axis. Am J Transl Res 2021; 13:8711-8727. [PMID: 34539989 PMCID: PMC8430130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/09/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Hypoxia/reoxygenation (H/R)-mediated apoptosis and inflammation are major causes of tissue injury in acute myocardial infarction (AMI). Exploring the underlying mechanisms of cardiomyocyte injury induced by H/R is important for AMI treatment. Circular RNAs have been demonstrated to paly vital roles in the pathogenesis of AMI. Our study aimed to explore the function of circular RNA UBXN7 (circUBXN7) in regulating H/R-induced cardiomyocyte injury. METHODS H/R-treated H9c2 cells and a mouse model of AMI were used to investigate the function of circUBXN7 in H/R damage and AMI. The expressions of circUNXN7, miR-622 and MCL1 were analyzed by RT-qPCR. CCK-8 was used for examining cell viability. Cell apoptosis was evaluated with caspase 3 activity and Annexin V/PI staining. MCL1, Bax, Bcl-2 and cleaved-caspase 3 were examined with western blot. ELISA was used to examine the secretion of IL-6, TNF-α and IL-1β. RESULTS CircUBXN7 was downregulated in patients and mice with AMI, as well as in H/R-treated cells. Overexpression of circUBXN7 mitigated H/R-mediated apoptosis and secretion of inflammatory factors including IL-6, TNF-α and IL-1β. CircUBXN7 suppressed cell apoptosis and inflammatory reaction induced by H/R via targeting miR-622. MiR-622 targeted MCL1 to restrain its expression in H9c2 cells. Knockdown of MCL1 abrogated circUBXN7-mediated alleviation of apoptosis and inflammation after H/R treatment. CONCLUSION CircUBXN7 mitigates cardiomyocyte apoptosis and inflammatory reaction in H/R injury by targeting miR-622 and maintaining MCL1 expression. Our study provides novel potential therapeutic targets for AMI treatment.
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Affiliation(s)
- Sheng Wang
- Department of Cardiovascular Surgery, Fuwai Central China Cardiovascular Hospital, Heart Center of He'nan Provincial People's Hospital Zhengzhou, He'nan Province, China
| | - Zhaoyun Cheng
- Department of Cardiovascular Surgery, Fuwai Central China Cardiovascular Hospital, Heart Center of He'nan Provincial People's Hospital Zhengzhou, He'nan Province, China
| | - Xianjie Chen
- Department of Cardiovascular Surgery, Fuwai Central China Cardiovascular Hospital, Heart Center of He'nan Provincial People's Hospital Zhengzhou, He'nan Province, China
| | - Guoqing Lu
- Department of Cardiovascular Surgery, Fuwai Central China Cardiovascular Hospital, Heart Center of He'nan Provincial People's Hospital Zhengzhou, He'nan Province, China
| | - Xiliang Zhu
- Department of Cardiovascular Surgery, Fuwai Central China Cardiovascular Hospital, Heart Center of He'nan Provincial People's Hospital Zhengzhou, He'nan Province, China
| | - Gaojun Xu
- Department of Cardiovascular Surgery, Fuwai Central China Cardiovascular Hospital, Heart Center of He'nan Provincial People's Hospital Zhengzhou, He'nan Province, China
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16
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Cheng F, Zheng B, Si S, Wang J, Zhao G, Yao Z, Niu Z, He W. The Roles of CircRNAs in Bladder Cancer: Biomarkers, Tumorigenesis Drivers, and Therapeutic Targets. Front Cell Dev Biol 2021; 9:666863. [PMID: 34350174 PMCID: PMC8326561 DOI: 10.3389/fcell.2021.666863] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 06/14/2021] [Indexed: 11/30/2022] Open
Abstract
Bladder cancer (BCa) is the most prevalent malignancy of the urinary system. Circular RNAs (circRNAs), a novel subtype of non-coding RNAs, play a crucial role in physiological and developmental processes. CircRNAs mainly function as regulators of splicing process and transcription, microRNA sponges, and protein brackets. Recent advances in understanding the pathogenesis of BCa have led to the identification of an abundance of dysregulated circRNAs associated with BCa. These aberrantly expressed circRNAs eventually lead to abnormalities in biological, genetic, and epigenetic information. In this review, we introduce the potential of circRNAs as biomarkers for BCa diagnosis and prognosis. Notably, diverse mechanisms have been proposed for circRNAs driving carcinogenesis, including increasing cell proliferation, promoting invasive and migratory capacity, enhancing endothelial–mesenchymal transition, sustaining stemness, and enabling resistance to chemotherapy. Importantly, a full understanding of circRNA mechanisms is needed to mine promising therapeutic approaches for targeting BCa. In this paper, we present the latest advances in circRNAs and systemically summarize the characteristics and mechanisms of circRNAs in BCa, providing potential perspectives for BCa treatment.
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Affiliation(s)
- Fajuan Cheng
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bin Zheng
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shubin Si
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Urology, People's Hospital of Yiyuan County, Zibo, China
| | - Jianwei Wang
- Department of Urology, Shandong Provincial ENT Hospital Affiliated to Shandong University, Jinan, China
| | - Guiting Zhao
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhongshun Yao
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhihong Niu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wei He
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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17
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CircRNA_0058063 functions as a ceRNA in bladder cancer progression via targeting miR-486-3p/FOXP4 axis. Biosci Rep 2021; 40:222397. [PMID: 32181485 PMCID: PMC7103589 DOI: 10.1042/bsr20193484] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/26/2020] [Accepted: 03/09/2020] [Indexed: 12/31/2022] Open
Abstract
Emerging evidence has uncovered critical regulatory roles of circular RNAs (circRNAs) function as dynamic scaffolding molecules in tumorigenesis and progression. However, the aberrant expression and clinical significance of hsa_circ_0058063 (circRNA_0058063) in bladder cancer (BC) remain poorly understood. circRNA expression was analyzed via a microarray in cancerous tissue and non-carcinoma tissues. Luciferase reporter assays and RNA immunoprecipitation (RIP) were both conducted to uncover the function of circRNA_0058063 in BC. circRNA_0058063 was overexpressed in BC tissues compared with adjacent normal tissues. Knockdown of circRNA_0058063 dramatically decreased cell proliferation and invasion, and promoted apoptosis in 5637 and BIU-87 cell lines. Furthermore, mechanistic investigations showed that circRNA_0058063 and FOXP4 could directly bind to miR-486-3p, demonstrating that circRNA_0058063 regulated FOXP4 expression by competitively binding to miR-486-3p. Taken together, circRNA_0058063 functions by sponging miR-486-3p in BC progression, which could act as a new biomarker and further developed to be a therapeutic target in BC.
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18
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Zhang C, Cao J, Lv W, Mou H. CircRNA_100395 Carried by Exosomes From Adipose-Derived Mesenchymal Stem Cells Inhibits the Malignant Transformation of Non-Small Cell Lung Carcinoma Through the miR-141-3p-LATS2 Axis. Front Cell Dev Biol 2021; 9:663147. [PMID: 33842488 PMCID: PMC8027360 DOI: 10.3389/fcell.2021.663147] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/05/2021] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE The specific purpose of this study is to investigate the impact exosomes from adipose-derived mesenchymal stem cell (AMSC) has on non-small cell lung carcinoma (NSCLC) and the relative applications. METHODS circ_100395, miR-141-3p, and LATS2 were expressed and detected in NSCLC and paracancerous tissues as well as NSCLC cell lines. Pearson correlation analysis, Dual-Luciferase Reporter Assay and RNA pull-down assay were used to validate their expression and interaction, respectively. After isolation and culture of AMSCs, exosomes were extracted and identified. EdU, epithelial-mesenchymal transition (EMT), and cell colony formation assay were used to distinguish the biological activity of the cells. Expression Hippo/YAP signalling pathway-related proteins were measured by western blotting. Subsequently, tumour volume and weight were confirmed based on xenograft nude mice models, Ki-67 and LATS2 expression was observed by immunohistochemistry. RESULTS circ_100395 was lowly expressed in NSCLC tissues or cells. The negative correlations and interactions were confirmed between circ_100395 and miR-141-3p, miR-141-3p, and LATS2. AMSC-derived exosomes with overexpression of circ_100395 (exo-circ_100395) significantly inhibited the biological activity as well as EMT of H1650 cells and Hippo/YAP signalling pathway activity. In addition, exo-circ_100395 markedly reduced tumour volume and weight as well as Ki-67 and LASP1 expression in vivo. However, overexpressed miR-141-3p or knocked down LATS2 alleviated the above effects. CONCLUSION Exo-circ_100395 can increase LATS2 expression by sponging miR-141-3p to regulate Hippo/YAP signalling pathway, thereby inhibiting NSCLC malignant transformation.
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Affiliation(s)
- Chong Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jinlin Cao
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wang Lv
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Haibo Mou
- Department of Medical Oncology, Shulan (Hangzhou) Hospital, Affiliated to Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
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Indellicato R, Trinchera M. Epigenetic Regulation of Glycosylation in Cancer and Other Diseases. Int J Mol Sci 2021; 22:ijms22062980. [PMID: 33804149 PMCID: PMC7999748 DOI: 10.3390/ijms22062980] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 12/12/2022] Open
Abstract
In the last few decades, the newly emerging field of epigenetic regulation of glycosylation acquired more importance because it is unraveling physiological and pathological mechanisms related to glycan functions. Glycosylation is a complex process in which proteins and lipids are modified by the attachment of monosaccharides. The main actors in this kind of modification are the glycoenzymes, which are translated from glycosylation-related genes (or glycogenes). The expression of glycogenes is regulated by transcription factors and epigenetic mechanisms (mainly DNA methylation, histone acetylation and noncoding RNAs). This review focuses only on these last ones, in relation to cancer and other diseases, such as inflammatory bowel disease and IgA1 nephropathy. In fact, it is clear that a deeper knowledge in the fine-tuning of glycogenes is essential for acquiring new insights in the glycan field, especially if this could be useful for finding novel and personalized therapeutics.
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Affiliation(s)
- Rossella Indellicato
- Department of Health Sciences, University of Milan, 20142 Milan, Italy
- Correspondence:
| | - Marco Trinchera
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy;
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20
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Wang F, Wang X, Li J, Lv P, Han M, Li L, Chen Z, Dong L, Wang N, Gu Y. CircNOL10 suppresses breast cancer progression by sponging miR-767-5p to regulate SOCS2/JAK/STAT signaling. J Biomed Sci 2021; 28:4. [PMID: 33397365 PMCID: PMC7780627 DOI: 10.1186/s12929-020-00697-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/26/2020] [Indexed: 12/20/2022] Open
Abstract
Background Circular RNAs (circRNAs) have caught increasing attentions and interests for their important involvement in cancer initiation and progression. This study aims to investigate the biological functions of circNOL10 and its potential molecular mechanisms in breast cancer (BC). Materials and methods qRT-PCR and western blot assays were performed to measure the expression of related genes. CCK-8, colony formation, flow cytomerty and transwell assays were used to assess cell proliferation, cell cycle, migration and invasion. RNA pull-down, luciferase reporter and RIP assays were applied to address the potential regulatory mechanism of circNOL10. Results CircNOL10 was down-regulated in BC tissues and cells. Low expression of circNOL10 was associated with larger tumor size, advanced TNM stage, lymph node metastasis and unfavorable prognosis. Overexpression of circNOL10 inhibited cell proliferation, migration, invasion and EMT in vitro and slowed xenograft tumor growth in vivo. Mechanistically, circNOL10 could act as a molecular sponge for miR-767-5p, leading to the up-regulation of suppressors of cytokine signaling 2 (SOCS2) and inactivation of JAK2/STAT5 pathway. Moreover, circNOL10-mediated suppression of malignant phenotypes was attenuated by miR-767-5p. Similar to circNOL10, enforced expression of SOCS2 also resulted in the suppression of cell proliferation and metastasis. Furthermore, knockdown of SOCS2 reversed the tumor-suppressive effect induced by circNOL10. Conclusions CircNOL10 repressed BC development via inactivation of JAK2/STAT5 signaling by regulating miR-767-5p/SOCS2 axis. Our findings offer the possibility of exploiting circNOL10 as a therapeutic and prognostic target for BC patients.
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Affiliation(s)
- Fang Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Xiaochun Wang
- Department of Breast Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Jingruo Li
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Pengwei Lv
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Mingli Han
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Lin Li
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Zhuo Chen
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Lingling Dong
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Nan Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Yuanting Gu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China.
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Yang X, Ye T, Liu H, Lv P, Duan C, Wu X, Jiang K, Lu H, Xia D, Peng E, Chen Z, Tang K, Ye Z. Expression profiles, biological functions and clinical significance of circRNAs in bladder cancer. Mol Cancer 2021; 20:4. [PMID: 33397425 PMCID: PMC7780637 DOI: 10.1186/s12943-020-01300-8] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/21/2020] [Indexed: 02/06/2023] Open
Abstract
Circular RNAs (circRNAs), which are single-stranded closed-loop RNA molecules lacking terminal 5′ caps and 3′ poly(A) tails, are attracting increasing scientific attention for their crucial regulatory roles in the occurrence and development of various diseases. With the rapid development of high-throughput sequencing technologies, increasing numbers of differentially expressed circRNAs have been identified in bladder cancer (BCa) via exploration of the expression profiles of BCa and normal tissues and cell lines. CircRNAs are critically involved in BCa biological behaviours, including cell proliferation, tumour growth suppression, cell cycle arrest, apoptosis, invasion, migration, metastasis, angiogenesis, and cisplatin chemoresistance. Most of the studied circRNAs in BCa regulate cancer biological behaviours via miRNA sponging regulatory mechanisms. CircRNAs have been reported to be significantly associated with many clinicopathologic characteristics of BCa, including tumour size, grade, differentiation, and stage; lymph node metastasis; tumour numbers; distant metastasis; invasion; and recurrence. Moreover, circRNA expression levels can be used to predict BCa patients’ survival parameters, such as overall survival (OS), disease-free survival (DFS), and progression-free survival (PFS). The abundance, conservation, stability, specificity and detectability of circRNAs render them potential diagnostic and prognostic biomarkers for BCa. Additionally, circRNAs play crucial regulatory roles upstream of various signalling pathways related to BCa carcinogenesis and progression, reflecting their potential as therapeutic targets for BCa. Herein, we briefly summarize the expression profiles, biological functions and mechanisms of circRNAs and the potential clinical applications of these molecules for BCa diagnosis, prognosis, and targeted therapy.
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Affiliation(s)
- Xiaoqi Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Ye
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haoran Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Lv
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chen Duan
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoliang Wu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kehua Jiang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Hongyan Lu
- Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ding Xia
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ejun Peng
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhiqiang Chen
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kun Tang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Zhangqun Ye
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Zheng S, Li L, Li N, Du Y, Zhang N. 1, 6-O, O-Diacetylbritannilactone from Inula britannica Induces Anti-Tumor Effect on Oral Squamous Cell Carcinoma via miR-1247-3p/LXRα/ABCA1 Signaling. Onco Targets Ther 2020; 13:11097-11109. [PMID: 33149621 PMCID: PMC7605651 DOI: 10.2147/ott.s263014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/18/2020] [Indexed: 12/22/2022] Open
Abstract
Introduction Oral squamous cell carcinoma (OSCC) is the most prevalent malignancy affecting the oral cavity and is associated with severe morbidity and high mortality. 1, 6-O, O-Diacetylbritannilactone (OODBL) isolated from the medicinal herb of Inula britannica has various biological activities such as anti-inflammation and anti-cancer. However, the effect of OODBL on OSCC progression remains unclear. Here, we were interested in the function of OODBL in the development of OSCC. Methods The effect of OODBL on OSCC progression was analyzed by MTT assays, colony formation assays, transwell assays, apoptosis analysis, cell cycle analysis, and in vivo tumorigenicity analysis. The mechanism investigation was performed by qPCR assays, Western blot analysis, and luciferase reporter gene assays. Results We found that OODBL inhibits the proliferation of OSCC cells in vitro. Moreover, the migration and invasion were attenuated by OODBL treatment in the OSCC cells. OODBL arrested cells at the G0/G1 phase and induced cell apoptosis. OODBL was able to up-regulate the expression of LXRα, ABCA1, and ABCG1 in the system. In addition, OODBL activated LXRα/ABCA1 signaling by targeting miR-1247-3p. Furthermore, the expression levels of cytochrome c in the cytoplasm, cleaved caspase-9, and cleaved caspase-3 were dose-dependently reduced by OODBL. Besides, OODBL increased the expression ratio of Bax to Bcl-2. Moreover, OODBL repressed tumor growth of OSCC cells in vivo. Discussion Thus, we conclude that OODBL inhibits OSCC progression by modulating miR-1247-3p/LXRα/ABCA1 signaling. Our finding provides new insights into the mechanism by which OODBL exerts potent anti-tumor activity against OSCC. OODBL may be a potential anti-tumor candidate, providing a novel clinical treatment strategy of OSCC.
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Affiliation(s)
- Shaohua Zheng
- Department of Anesthesiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an City, Shanxi Province, 710061, People's Republic of China
| | - Lihua Li
- Department of Stomatology, North Sichuan Medical College, Nanchong, Sichuan Province, 637000, People's Republic of China
| | - Na Li
- Department of Stomatology, Xi'an Shiyou University Hospital, Xi'an City, Shanxi Province, 710065, People's Republic of China
| | - Yi Du
- Jinan Stomatological Hospital, Jinan City, Shandong Province 250001, People's Republic of China
| | - Nan Zhang
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xian City, Shanxi Province 710061, People's Republic of China
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Brown JR, Chinnaiyan AM. The Potential of Circular RNAs as Cancer Biomarkers. Cancer Epidemiol Biomarkers Prev 2020; 29:2541-2555. [PMID: 33060073 DOI: 10.1158/1055-9965.epi-20-0796] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/24/2020] [Accepted: 10/12/2020] [Indexed: 01/17/2023] Open
Abstract
Circular RNA (circRNA) is a covalently closed RNA structure that has several proposed functions related to cancer development. Recently, cancer-specific and tissue-specific circRNAs have been identified by high-throughput sequencing and are curated in publicly available databases. CircRNAs have features that are ideal properties of biomarkers, including conservation, abundance, and stability in plasma, saliva, and urine. Many circRNAs with predictive and prognostic significance in cancer have been described, and functional mechanisms for some circRNAs have been suggested. CircRNA also has great potential as a noninvasive biomarker for early cancer detection, although further investigation is necessary before clinical application is feasible.See all articles in this CEBP Focus section, "NCI Early Detection Research Network: Making Cancer Detection Possible."
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Affiliation(s)
- Jason R Brown
- Rogel Cancer Center, Michigan Medicine, University of Michigan, Ann Arbor, Michigan
| | - Arul M Chinnaiyan
- Rogel Cancer Center, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
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24
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Wang S, Fu S, Chen Q, Liu Y, Li Z, Sun T. Prognostic Role of Circular RNAs Expression in Bladder Carcinoma: A Meta-Analysis. Genet Test Mol Biomarkers 2020; 24:692-700. [PMID: 33030352 DOI: 10.1089/gtmb.2020.0079] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Background: Circular RNAs (circRNAs), a type of noncoding RNA, are associated with the occurrence and development of cancers. In recent years, their potential as biomarkers for bladder cancer (BC) has attracted increased attention. Aims: To reveal the value of circRNAs in the prognosis of BC. Methods: Relevant studies were collected to extract the clinicopathological data and overall survival (OS) of patients with BC. We then evaluated their tumor-related clinicopathological indicators using pooled odds ratio (OR) and 95% confidence interval (CI). Hazard ratio (HR) and 95% CI were used to estimate the OS of BC patients who expressed abnormal circRNAs. Results: The results indicate that seven circRNAs (circMYLK, circASXL1, hsa_circ_0000144, circ-VANGL1, circGprc5a, circZFR, and circ-cTFRC) whose expression was upregulated in tumor tissues, are associated with poor clinicopathological features (tumor/node/metastasis [TNM] stage: OR = 4.86, 95% CI: 2.53-9.34; histological grade: OR = 3.71, 95% CI: 2.37-5.79; lymph node metastasis: OR = 3.23; 95% CI: 2.15-4.88; recurrence: OR = 5.33; 95% CI: 2.27-12.52) and poor prognoses (OS: HR = 1.69; 95% CI: 1.17-2.44). We also found that seven circRNAs (circMTO1, circ-ITCH, circUBXN7, circFNDC3B, circ-ZKSCAN1, circPICALM, and circACVR2A) that were downregulated in tumors were associated with better clinicopathological indicators (TNM stage: OR = 0.23, 95% CI: 0.14-0.38; histological grade: OR = 0.21, 95% CI: 0.13-0.33; lymph node metastasis: OR = 0.26; 95% CI: 0.15-0.47) and better prognoses (OS: HR = 0.42; 95% CI: 0.30-0.58). Conclusion: Our results suggest that certain circRNAs are related to the clinicopathological characteristics and prognosis of BC patients, and may potentially be used as biomarkers.
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Affiliation(s)
- Siyuan Wang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Shengqiang Fu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qiang Chen
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yutang Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhilong Li
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ting Sun
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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25
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Cai Z, Li H. Circular RNAs and Bladder Cancer. Onco Targets Ther 2020; 13:9573-9586. [PMID: 33061440 PMCID: PMC7535116 DOI: 10.2147/ott.s268859] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/03/2020] [Indexed: 12/17/2022] Open
Abstract
Bladder cancer (BC) is the most common urinary system malignancy and is a serious threat to human health. Circular RNAs (circRNAs) are members of a newly defined class of noncoding RNAs (ncRNAs) that can regulate gene expression at the transcriptional or posttranscriptional level. Studies have shown that circRNAs are related to the clinicopathological characteristics, prognosis, and chemosensitivity of BC, and basic research has further confirmed that changes in the expression of circRNAs in BC are closely related to various tumor biological functions. CircRNAs promote tumor development by interacting with miRNAs to regulate transcription factors and both classical and nonclassical tumor signaling pathways. The nonclassical signaling pathways are related to cell cycle progression, epithelial–mesenchymal transition (EMT), extracellular matrix maintenance, and tumor stem cell maintenance. In this article, the relationships between circRNAs and the clinical characteristics of BC are reviewed, and the molecular mechanisms by which circRNAs promote tumor development are explored.
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Affiliation(s)
- Zhonglin Cai
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Hongjun Li
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
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26
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Huang W, Lu Y, Wang F, Huang X, Yu Z. Circular RNA circRNA_103809 Accelerates Bladder Cancer Progression and Enhances Chemo-Resistance by Activation of miR-516a-5p/FBXL18 Axis. Cancer Manag Res 2020; 12:7561-7568. [PMID: 32922071 PMCID: PMC7457878 DOI: 10.2147/cmar.s263083] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/29/2020] [Indexed: 01/06/2023] Open
Abstract
Background Numerous researches have suggested that circular RNAs (circRNAs) play critical functions in bladder cancer (BC) progression. This study aims to investigate the potential roles of circRNA_103809 in regulating BC development. Methods qRT-PCR was used to analyze gene expression. CCK8 and colony formation were used to analyze cell proliferation. Transwell was utilized to examine cell migration and invasion. Gemcitabine was used to analyze the effect of circRNA_103809 on the chemo-resistance of BC cells. Luciferase reporter assay was performed to detect the RNA interactions. Results circRNA_103809 was highly expressed in BC tissues and cell lines. CircRNA_103809 high expression was associated with a poor progression in BC patients. CircRNA_103809 knockdown impaired the growth and metastasis of BC cells. Furthermore, circRNA_103809 silencing increased the sensitivity of BC cells to Gemcitabine treatment. CircRNA_103809 was the sponge for miR-516a-5p and promoted FBXL18 expression via restraining miR-516a-5p activity. Conclusion circRNA_103809 promotes proliferation, migration, invasion and chemo-resistance of BC cells through regulating miR-516a-5p/FBXL18 axis.
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Affiliation(s)
- Weiping Huang
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People's Republic of China
| | - Yongyong Lu
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People's Republic of China
| | - Feng Wang
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People's Republic of China
| | - Xixi Huang
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People's Republic of China
| | - Zhixian Yu
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People's Republic of China
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27
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Wen X, Liu S, Sheng J, Cui M. Recent advances in the contribution of noncoding RNAs to cisplatin resistance in cervical cancer. PeerJ 2020; 8:e9234. [PMID: 32523813 PMCID: PMC7263300 DOI: 10.7717/peerj.9234] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 05/04/2020] [Indexed: 12/11/2022] Open
Abstract
Cervical cancer (CC) remains a major disease burden on the female population worldwide. Chemotherapy with cisplatin (cis-diamminedichloroplatinum (II); CDDP) and related drugs are the main treatment option for CC; however, their efficacy is limited by the development of drug resistance. Noncoding RNAs (ncRNAs) have been found to play critical roles in numerous physiological and pathological cellular processes, including drug resistance of cancer cells. In this review, we describe some of the ncRNAs, including miRNAs, lncRNAs and circRNAs, that are involved in the sensitivity/resistance of CC to CDDP-based chemotherapy and discuss their mechanisms of action. We also describe some ncRNAs that could be therapeutic targets to improve the sensitivity of CC to CDDP-based chemotherapy.
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Affiliation(s)
- Xin Wen
- The Second Hospital of Jilin University, Jilin University, Changchun, Jilin Province, China
| | - Shui Liu
- The Second Hospital of Jilin University, Jilin University, Changchun, Jilin Province, China
| | - Jiyao Sheng
- The Second Hospital of Jilin University, Jilin University, Changchun, Jilin Province, China
| | - Manhua Cui
- The Second Hospital of Jilin University, Jilin University, Changchun, Jilin Province, China
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28
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Li C, Fu X, He H, Chen C, Wang Y, He L. The Biogenesis, Functions, and Roles of circRNAs in Bladder Cancer. Cancer Manag Res 2020; 12:3673-3689. [PMID: 32547204 PMCID: PMC7245432 DOI: 10.2147/cmar.s245233] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 04/16/2020] [Indexed: 01/16/2023] Open
Abstract
Bladder cancer (BCa) is the 10th most prevalent malignancy worldwide and remains a crucial cause of cancer-related morbidity and mortality. Circular RNAs (circRNAs), a large class of endogenous non-coding RNAs, contain unique covalent closed structures and their biogenesis and turnover are regulated by multiple factors. Recently, multiple circRNAs have been found to serve as important factors in several biological processes such as tumorigenesis. An increasing amount of research discovered that circRNAs are dysregulated in multiple cancer tissues compared with matched normal tissues, especially in BCa, indicating that circRNAs can act as biomarkers for the diagnosis and prognosis of BCa. In this review, we focus on the biogenesis, properties, turnover, and functions of circRNAs, summarizing their potential functions and clinical implications in BCa.
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Affiliation(s)
- Changjiu Li
- Department of Urology, Affiliated Hangzhou First People's Hospital, Nanjing Medical University, Hangzhou 310006, Zhejiang Province, People's Republic of China
| | - Xian Fu
- Department of Urology, Affiliated Hangzhou First People's Hospital, Zhejiang University, Hangzhou 310006, Zhejiang Province, People's Republic of China
| | - Huadong He
- Department of Urology, Affiliated Hangzhou First People's Hospital, Nanjing Medical University, Hangzhou 310006, Zhejiang Province, People's Republic of China
| | - Chao Chen
- Department of Urology, Affiliated Hangzhou First People's Hospital, Zhejiang University, Hangzhou 310006, Zhejiang Province, People's Republic of China
| | - Yuyong Wang
- Department of Urology, Affiliated Hangzhou First People's Hospital, Zhejiang University, Hangzhou 310006, Zhejiang Province, People's Republic of China
| | - Lugeng He
- Department of Urology, Affiliated Hangzhou First People's Hospital, Zhejiang University, Hangzhou 310006, Zhejiang Province, People's Republic of China
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29
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Li Y, Li G, Guo X, Yao H, Wang G, Li C. Non-coding RNA in bladder cancer. Cancer Lett 2020; 485:38-44. [PMID: 32437725 DOI: 10.1016/j.canlet.2020.04.023] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/26/2020] [Accepted: 04/24/2020] [Indexed: 12/24/2022]
Abstract
Bladder cancer is the tenth most common cancer worldwide and has been associated with high mortality and morbidity. Although the treatment of bladder cancer is based on well-defined tumor classifications and gradings, patients still experience different clinical response. The heterogeneity of this disease calls for substantial research with more in-depth molecular characterization, with the hope of identifying new diagnostic and treatment options. In recent years, non-coding RNAs (ncRNAs), particularly, microRNAs (miRNAs), long non-coding RNA (lncRNAs), and circular RNAs (circRNAs) were found to be associated with bladder cancer occurrence and development. This review highlights the recent findings concerning ncRNAs and their relevance to the pathogenesis of bladder cancer. This may provide a foundation for developing highly specific diagnostic tools and more robust therapeutic strategies in the future.
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Affiliation(s)
- Yi Li
- Department of Anesthesiology, Peking University Third Hospital (PUTH), Beijing, China
| | - Gang Li
- Department of Anesthesiology, Peking University Third Hospital (PUTH), Beijing, China
| | - Xiangyang Guo
- Department of Anesthesiology, Peking University Third Hospital (PUTH), Beijing, China
| | - Haochen Yao
- College of Basic Medical Science, Jilin University (JUT), Changchun, Jilin, China
| | - Guoqing Wang
- College of Basic Medical Science, Jilin University (JUT), Changchun, Jilin, China.
| | - Chong Li
- Core Facility for Protein Research, Institute of Biophysics Chinese Academy of Sciences (IBPCAS), Beijing, China; Beijing Jianlan Institute of Medicine, Beijing, China; Beijing Zhongke Jianlan Biotechnology Co., Ltd., Beijing, China.
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30
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Shi YR, Wu Z, Xiong K, Liao QJ, Ye X, Yang P, Zu XB. Circular RNA circKIF4A Sponges miR-375/1231 to Promote Bladder Cancer Progression by Upregulating NOTCH2 Expression. Front Pharmacol 2020; 11:605. [PMID: 32457613 PMCID: PMC7225260 DOI: 10.3389/fphar.2020.00605] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/17/2020] [Indexed: 12/16/2022] Open
Abstract
Circular RNAs (circRNAs) have been found to be important mediators of many biological processes in the growth and metastasis of various cancers. However, the potential roles of most circRNAs in the progression of bladder cancer remain unclear. In this research, we investigate the role of circKIF4A (hsa_circ_0007255) in the development and progression of bladder cancer. Detected by qRT-PCR analysis, circKIF4A was significantly upregulated in bladder cancer tissues and cell lines. We conducted CCK-8, colony-formation, transwell and mouse xenograft assays to explore the function of circKIF4A in bladder cancer. Functionally, knockdown of circKIF4A inhibited the proliferation and colony-formation ability of bladder cancer cells. Migration and metastatic ability were dramatically decreased after transfection with small interfering RNA targeting circKIF4A in both in vitro and in vivo assays. Mechanically, luciferase reporter assays and RNA immunoprecipitation assays were carried out to elucidate the underlying molecular mechanism of circKIF4A. The results revealed that circKIF4A sponges miR-375/1231 to promote bladder cancer progression by upregulating NOTCH2. Generally, our research unveils the essential role of circKIF4A-miR-375/1231-NOTCH2 axis in bladder cancer progression possibly via the competing endogenous RNA mechanism.
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Affiliation(s)
- Ying-Rui Shi
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China.,Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Zheng Wu
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Kun Xiong
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Qian-Jin Liao
- Central Laboratory, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Xu Ye
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Pei Yang
- Department of Radiation Oncology, Hunan Cancer Hospital & the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Xiong-Bing Zu
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
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31
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The circRNA circSEPT9 mediated by E2F1 and EIF4A3 facilitates the carcinogenesis and development of triple-negative breast cancer. Mol Cancer 2020; 19:73. [PMID: 32264877 PMCID: PMC7137343 DOI: 10.1186/s12943-020-01183-9] [Citation(s) in RCA: 235] [Impact Index Per Article: 58.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 03/12/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Increasing studies have shown that circRNA is closely related to the carcinogenesis and development of many cancers. However, biological functions and the underlying molecular mechanism of circRNAs in triple-negative breast cancer (TNBC) remain largely unclear so far. METHODS Here, we investigated the expression pattern of circRNAs in four pairs of TNBC tissues and paracancerous normal tissues using RNA-sequencing. The expression and prognostic significance of circSEPT9 were evaluated with qRT-PCR and in situ hybridization in two TNBC cohorts. The survival curves were drawn by the Kaplan-Meier method, and statistical significance was estimated with the log-rank test. A series of in vitro and in vivo functional experiments were executed to investigate the role of circSEPT9 in the carcinogenesis and development of TNBC. Mechanistically, we explored the potential regulatory effects of E2F1 and EIF4A3 on biogenesis of circSEPT9 with chromatin immunoprecipitation (ChIP), luciferase reporter and RNA immunoprecipitation (RIP) assays. Furthermore, fluorescent in situ hybridization (FISH), luciferase reporter and biotin-coupled RNA pull-down assays were implemented to verify the relationship between the circSEPT9 and miR-637 in TNBC. RESULTS Increased expression of circSEPT9 was found in TNBC tissues, which was positively correlated with advanced clinical stage and poor prognosis. Knockdown of circSEPT9 significantly suppressed the proliferation, migration and invasion of TNBC cells, induced apoptosis and autophagy in TNBC cells as well as inhibited tumor growth and metastasis in vivo. Whereas up-regulation of circSEPT9 exerted opposite effects. Further mechanism research demonstrated that circSEPT9 could regulate the expression of Leukemia Inhibitory Factor (LIF) via sponging miR-637 and activate LIF/Stat3 signaling pathway involved in progression of TNBC. More importantly, we discovered that E2F1 and EIF4A3 might promote the biogenesis of circSEPT9. CONCLUSIONS Our data reveal that the circSEPT9 mediated by E2F1 and EIF4A3 facilitates the carcinogenesis and development of triple-negative breast cancer through circSEPT9/miR-637/LIF axis. Therefore, circSEPT9 could be used as a potential prognostic marker and therapeutical target for TNBC.
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Abstract
Background: β-1, 4-galactosyltransferase III (B4GALT3) plays an important role in development tumourigenesis. But its role in human glioblastoma (GBM) is still unknown.Materials and methods: To perform gain-of-function and loss-of-function experiment, we transfected siRNA or vector into GBM cells. CCK-8, EdU staining, transwell, western blot, immunofluorescence staining were applied to perform phenotype and mechanism experiment. GlioVis platform was used to analyze B4GALT3 expression from TCGA datasets.Results: B4GALT3 is upregulated in glioblastoma and predicts poor prognosis. Upregulation of B4GALT3 promotes GBM cell proliferation and invasion while the downregulation of B4GALT3 reduces GBM cell proliferation and invasion. B4GALT3 regulates cell proliferation and invasion via β-catenin and vimentin. B4GALT3 correlates with cell invasion markers in clinical samples.Conclusion: B4GALT3 might be a potential molecular therapeutic target of glioblastoma.
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Affiliation(s)
- Tao Wu
- Department of Neurosurgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, P.R. China
| | - Yifei Li
- Department of Neurosurgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, P.R. China
| | - Baodong Chen
- Department of Neurosurgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, P.R. China
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33
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Tang Q, Hann SS. Biological Roles and Mechanisms of Circular RNA in Human Cancers. Onco Targets Ther 2020; 13:2067-2092. [PMID: 32210574 PMCID: PMC7069569 DOI: 10.2147/ott.s233672] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/20/2020] [Indexed: 12/15/2022] Open
Abstract
Circular RNA (circRNA) is an intriguing class of RNA with covalently closed-loop structure and is highly stable and conservative. As new members of the ncRNAs, the function, mechanism, potential diagnostic biomarker, and therapeutic target have raised increased attention. Most circRNAs are presented with characteristics of abundance, stability, conservatism, and often exhibiting tissue/developmental-stage-specific manner. Over 30,000 circRNAs have been identified with their unique structures to maintain stability more easily than linear RNAs. An increased numbers of circRNAs are dysregulated and involved in several biological processes of malignance, such as tumorigenesis, growth, invasion, metastasis, apoptosis, and vascularization. Emerging evidence suggests that circRNAs play important roles by acting as miRNA sponge or protein scaffolding, autophagy regulators, and interacting with RNA-binding protein (RBP), which may potentially serve as a novel promising biomarker for prevention, diagnosis and therapeutic target for treatment of human cancer with great significance either in scientific research or clinic arena. This review introduces concept, major features of circRNAs, and mainly describes the major biological functions and clinical relevance of circRNAs, as well as expressions and regulatory mechanisms in various types of human cancer, including pathogenesis, mode of action, potential target, signaling regulatory pathways, drug resistance, and therapeutic biomarkers. All of which provide evidence for the potential utilities of circRNAs in the diagnosis and treatment of cancer.
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Affiliation(s)
- Qing Tang
- Laboratory of Tumor Biology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, People's Republic of China
| | - Swei Sunny Hann
- Laboratory of Tumor Biology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, People's Republic of China
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Wan B, Liu B, Lv C. Progress of research into circular RNAs in urinary neoplasms. PeerJ 2020; 8:e8666. [PMID: 32140311 PMCID: PMC7045884 DOI: 10.7717/peerj.8666] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/30/2020] [Indexed: 12/26/2022] Open
Abstract
Circular RNAs (circRNAs) are a large class of endogenous RNA that form a covalently closed continuous loop without 5′ or 3′ tails and are diffusely expressed in mammalian cells. Through the development of high-throughput sequencing, microarray, and bioinformatics analyses, recent studies have shown that the expression of circRNAs is dysregulated in human tumor tissues and cells, as well as in the blood of patients, and closely correlates with the development of tumors. circRNAs can regulate the progression of tumors through various mechanisms. An increasing number of studies have shown that circRNAs may play critical roles in the early diagnosis, targeted therapy, and prognostic prediction of cancer as biomarkers or therapeutic targets. This review briefly describes the definitions and functions of circRNAs, and the main content includes the most recent progress in research into their function, regulation, and clinical relevance to bladder, renal, and prostate cancers. We also provide some novel ideas regarding the treatment of these diseases.
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Affiliation(s)
- Bangbei Wan
- Department of Urology, Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, China
| | - Bo Liu
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Cai Lv
- Department of Urology, Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, China
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He Z, Yan T, Yuan Y, Yang D, Yang G. miRNAs and lncRNAs in Echinococcus and Echinococcosis. Int J Mol Sci 2020; 21:ijms21030730. [PMID: 31979099 PMCID: PMC7037763 DOI: 10.3390/ijms21030730] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/16/2020] [Accepted: 01/19/2020] [Indexed: 01/04/2023] Open
Abstract
Echinococcosis are considered to be potentially lethal zoonotic diseases that cause serious damage to hosts. The metacestode of Echinococcus multilocularis and E. granulosus can result in causing the alveolar and cystic echinococcoses, respectively. Recent studies have shown that non-coding RNAs are widely expressed in Echinococcus spp. and hosts. In this review, the two main types of non-coding RNAs—long non-coding RNAs (lncRNAs) and microRNAs (miRNAs)—and the wide-scale involvement of these molecules in these parasites and their hosts were discussed. The expression pattern of miRNAs in Echinococcus spp. is species- and developmental stage-specific. Furthermore, common miRNAs were detected in three Echinococcus spp. and their intermediate hosts. Here, we primarily focus on recent insights from transcriptome studies, the expression patterns of miRNAs and lncRNAs, and miRNA-related databases and techniques that are used to investigate miRNAs in Echinococcus and echinococcosis. This review provides new avenues for screening therapeutic and diagnostic markers.
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Affiliation(s)
- Zhi He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; (Z.H.); (T.Y.); (Y.Y.)
| | - Taiming Yan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; (Z.H.); (T.Y.); (Y.Y.)
| | - Ya Yuan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; (Z.H.); (T.Y.); (Y.Y.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Deying Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; (Z.H.); (T.Y.); (Y.Y.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
- Correspondence: ; Tel.: +86-028-8278-3043
| | - Guangyou Yang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, Sichuan, China;
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Dai X, Guo X, Liu J, Cheng A, Peng X, Zha L, Wang Z. Circular RNA circGRAMD1B inhibits gastric cancer progression by sponging miR-130a-3p and regulating PTEN and p21 expression. Aging (Albany NY) 2019; 11:9689-9708. [PMID: 31719211 PMCID: PMC6874462 DOI: 10.18632/aging.102414] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 10/28/2019] [Indexed: 12/24/2022]
Abstract
Circular RNAs (circRNAs) have emerged as essential regulators and biomarkers of various cancers. However, the effects of a novel circRNA termed circGRAMD1B in human gastric cancer (GC) remain unclear. A microarray was used to screen circRNA expression in GC. Quantitative real-time PCR was used to detect the expression of circGRAMD1B. Gain- and loss- of-function experiments were performed to investigate the biological functions of circGRAMD1B in vitro and vivo. Bioinformatics analysis, fluorescence in situ hybridization, dual-luciferase reporter assay, RNA immunoprecipitation, RNA pull-down assay, and rescue experiments were conducted to confirm the underlying mechanisms of competitive endogenous RNAs (ceRNAs). We screened differentially expressed circRNAs and found that circGRAMD1B expression was downregulated in GC tissues and cell lines. Functionally, circGRAMD1B acted as an anti-oncogene and inhibited the proliferation, migration, and invasion abilities of GC cells. Then, we verified that circGRAMD1B served as a sponge that targeted miR-130a-3p in GC cells; circGRAMD1B alleviated GC cell proliferation, migration, and invasion by targeting miR-130a-3p. A mechanistic analysis showed that PTEN and p21 were involved in circGRAMD1B/miR-130a-3p axis-inhibited GC tumorigenesis. Our findings suggest that circGRAMD1B plays an important role in GC progression by regulating miR-130a-3p-PTEN/p21, which may provide a potential biomarker and therapeutic target for GC.
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Affiliation(s)
- Xinglong Dai
- Department of Gastrointestinal Surgery, Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, PR China
| | - Xiong Guo
- Department of Gastrointestinal Surgery, Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, PR China
| | - Jianjun Liu
- Department of Gastrointestinal Surgery, Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, PR China
| | - Anqi Cheng
- Department of Gastrointestinal Surgery, Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, PR China
| | - Xudong Peng
- Department of Gastrointestinal Surgery, Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, PR China
| | - Lang Zha
- Department of Gastrointestinal Surgery, Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, PR China
| | - Ziwei Wang
- Department of Gastrointestinal Surgery, Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, PR China
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Hsa_circ_0001361 promotes bladder cancer invasion and metastasis through miR-491-5p/MMP9 axis. Oncogene 2019; 39:1696-1709. [PMID: 31705065 DOI: 10.1038/s41388-019-1092-z] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 10/23/2019] [Accepted: 10/28/2019] [Indexed: 12/24/2022]
Abstract
Circular RNAs (circRNAs) have been increasingly indicated to be important participants in the development and progression of various malignant tumors. Our previous studies found that hundreds of circRNAs were aberrantly expressed in bladder cancer (BC) by high-throughput sequencing and we have confirmed that the downregulated circRNAs circHIPK3, circRNA BCRC-3, and circNR3C1 played inhibitory roles in BC progression. In this study, we focused on the upregulated circRNAs and identified a novel circular RNA, hsa_circ_0001361 (circ0001361), was expressed at high levels in BC tissues and cell lines based on RNA-Seq data and qRT-PCR analysis, and it was positively corelated with pathologic grade and muscle invasion. Moreover, Kaplan-Meier survival analysis implied that BC patients with high circ0001361 expression level had a poor overall survival. Functionally, circ0001361 promoted BC cell invasion and metastasis both in vitro and in vivo, but had no effect on cell cycle and proliferation. Mechanistically, RNA sequencing analysis indicated that MMP9 was upregulated in circ0001361-overexpressed BC cells, and MMP9 was verified to mediate circ0001361-induced cell migration and invasion. Furthermore, we demonstrated that circ0001361 could directly interact with miR-491-5p to upregulate MMP9 expression. Collectively, our findings indicate that circ0001361 plays oncogenic role in BC invasion and metastasis through targeting the miR-491-5p/MMP9 axis, and it might be a potential novel target for BC therapy.
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Lai Y, Zhou B, Tan Q, Xu J, Wan T, Zhang L. LINC00116 enhances cervical cancer tumorigenesis through miR-106a/c-Jun pathway. J Cell Biochem 2019; 121:2247-2257. [PMID: 31693227 DOI: 10.1002/jcb.29447] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 10/10/2019] [Indexed: 12/21/2022]
Abstract
Some studies imply that LINC00116 is involved in cervical cancer progression; however, the molecular mechanism by which LINC00116 modulating tumorigenesis of cervical cancer remains not clear. Reverse transcription-quantitative PCR (RT-qPCR) and the Western blot approaches were employed to probe genes expression levels. To examine the tumorigenic abilities of cervical cancer cells, MTT assay, Transwell assay, and wound-healing assay were used to investigate proliferation, invasion, and migration of HeLa or C-33A cells. LINC00116 knockdown attenuates cell proliferation, invasion, and migration of cervical cancer cells. miR-106a directly binds LINC00116 and regulate each other. Moreover, miR-106a inhibitor remarkably enhanced tumorigenesis of shLINC00116 HeLa cells. Through bioinformatic and dual-luciferase reporter assay, the results showed that miR-106a mimic directly targeted and downregulated the c-Jun. c-Jun overexpression could greatly rescue miR-106a mimic-modulated cervical cancer tumorigenesis. LINC00116 knockdown and miR-106a mimic-modulated programmed cell death ligand 1 (PD-L1) expression, which could be reverted by c-Jun introduction. LINC00116, PD-L1, and JUN were both upregulated in cervical cancer tumors compared to normal tissues. Lower expression levels of LINC00116 and JUN, as well as higher level of miR-106a were closely associated with higher overall survival of cervical cancer patients. Here, we report a novel role for LINC00116 in tumorigenesis of cervical cancer by regulating miR-106a/c-Jun axis. Our findings provide a foundation for understanding cervical cancer and facilitate the development of therapeutical approaches by targeting LINC00116.
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Affiliation(s)
- Yiqing Lai
- Center for Cervical Disease Prevention and Treatment, Changzhou Maternal and Child Health Care Hospital, Changzhou, China
| | - Beibei Zhou
- Center for Cervical Disease Prevention and Treatment, Changzhou Maternal and Child Health Care Hospital, Changzhou, China
| | - Qingqing Tan
- Department of Gynecologic Oncology, Changzhou Maternal and Child Health Care Hospital, Changzhou, China
| | - Juan Xu
- Department of Gynecologic Oncology, Changzhou Maternal and Child Health Care Hospital, Changzhou, China
| | - Ting Wan
- Department of Science and Education, Changzhou Maternal and Child Health Care Hospital, Changzhou, China
| | - Lina Zhang
- Center for Cervical Disease Prevention and Treatment, Changzhou Maternal and Child Health Care Hospital, Changzhou, China
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Hu Y, Zhao Y, Shi C, Ren P, Wei B, Guo Y, Ma J. A circular RNA from APC inhibits the proliferation of diffuse large B-cell lymphoma by inactivating Wnt/β-catenin signaling via interacting with TET1 and miR-888. Aging (Albany NY) 2019; 11:8068-8084. [PMID: 31631067 PMCID: PMC6814595 DOI: 10.18632/aging.102122] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 07/21/2019] [Indexed: 12/16/2022]
Abstract
Circular RNA (circRNA), a type of non-coding RNA, can promote or suppress tumorigenesis. To investigate the involvement of circRNA in diffuse large B-cell lymphoma (DLBCL), we performed a circRNA microarray analysis on paired DLBCL and normal tissues. We identified a novel and highly stable circRNA originating from the back-splicing of APC exon 7 to exon 14, circ-APC (hsa_circ_0127621), which was downregulated in DLBCL tissues, cell lines and plasma. In gain-of-function experiments, ectopic expression of circ-APC inhibited DLBCL cell proliferation in vitro and tumor growth in vivo. Cytoplasmic circ-APC functioned as a sponge for miR-888, thus post-transcriptionally upregulating APC by alleviating the repressive effects of miR-888 on this gene. Further, nuclear circ-APC bound to the APC promoter and recruited the DNA demethylase TET1, thereby transcriptionally upregulating APC. Upon its upregulation, APC dampened the canonical Wnt/β-catenin signaling pathway by reducing the accumulation of β-catenin in the nucleus, thereby retarding DLBCL growth. Clinically, circ-APC was found to be an effective diagnostic and prognostic biomarker for patients with DLBCL. Our study suggests that circ-APC is a novel proliferation inhibitor, and that restoring circ-APC expression may be a promising therapeutic approach for DLBCL patients.
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Affiliation(s)
- Yanping Hu
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450008, P.R. China
| | - Yixun Zhao
- Endoscopic Center, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450008, P.R. China
| | - Chao Shi
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450008, P.R. China
| | - Pengfei Ren
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450008, P.R. China
| | - Bing Wei
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450008, P.R. China
| | - Yongjun Guo
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450008, P.R. China
| | - Jie Ma
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450008, P.R. China
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Guo J, Chen M, Ai G, Mao W, Li H, Zhou J. Hsa_circ_0023404 enhances cervical cancer metastasis and chemoresistance through VEGFA and autophagy signaling by sponging miR-5047. Biomed Pharmacother 2019; 115:108957. [PMID: 31082770 DOI: 10.1016/j.biopha.2019.108957] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/28/2019] [Accepted: 05/03/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Cervical cancer has been shown to be one of the leading cancer-related death causes all over the world. Several studies demonstrates that hsa_circ_0023404 plays a crucial role in progression of cervical cancer; however, the detailed mechanism of hsa_circ_0023404 regulating cervical cancer metastasis and chemoresistance remains unclear. METHODS We used RT-qPCR and westernblot approach to detect expression levels of various genes in cervical tumors and cancer cells. To examine invasion and lymphatic vessel formation of Human Dermal Lymphatic Endothelial Cells (HDLEC), transwell invasion assay and lymphatic vessel assay were utilized in the presence of conditioned medium of HeLa and SiHa cells. To examine direct interaction between hsa_circ_0023404 and miR-5047, bioinformatic analysis and luciferase reporter assay were used. Besides, MTT and flow cytometry analysis were conducted to assess cell viability and apoptosis rate of HeLa cell. RESULTS hsa_circ_0023404 knockdown attenuates invasion of cervical cancer cells and lymphatic vessel formation of HDLEC cells. hsa_circ_0023404 directly interacted with miR-5047. Moreover, miR-5047 inhibitor-transfected HeLa and SiHa cells enhanced invasion and lymphatic vessel formation of HDLEC cells. More interestingly, we confirmed that hsa_circ_0023404 knockdown and miR-5047 mimic downregulated the expression levels of VEGFA. The functional rescue experiments indicated VEGFA acted as key factor for hsa_circ_0023404- and miR-5047-regulated invasion and lymphatic vessel formaion. Ultimately, hsa_circ_0023404 and VEGFA were upregulated and showed positive correlation in cervical tumors, while miR-5047 was downregulated and showed negative correlation with hsa_circ_0023404 and VEGFA. On the other hand, autophagy-associated genes (Beclin1 and p62) were dysregulated in hsa_circ_0023404 depleted and overexpressed HeLa cells. hsa_circ_0023404 knockdown inhibited cell viability of cells, which was obviously abolished by autophagy inhibitor 3-MA in the presence of various concentrations of Cisplatin. Consistently, apoptosis rate was remarkably elevated in hsa_circ_0023404 depleted cells and diminished in hsa_circ_0023404 overexpressed cells under treatment of 2 μg/ml Cisplatin. CONCLUSIONS Here, we reveal a novel role of hsa_circ_0023404 for cervical cancer metastasis and chemoresistance by regulating miR-5047. Our findings help understand mechanism underlying cervical cancer and development of therapeutical approaches for treating cervical cancer.
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Affiliation(s)
- Jing Guo
- Gynaecology and Obstetrics Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Mengmeng Chen
- Gynaecology and Obstetrics Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Guihai Ai
- Gynaecology and Obstetrics Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Weipu Mao
- Urology Surgery Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Huan Li
- Clinical Medicine Department, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Jianhong Zhou
- Gynaecology and Obstetrics Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China.
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Cong L, Yang Q, Hu C, Yu Q, Hao S, Li D. Current Status of Functional Studies on Circular RNAs in Bladder Cancer and their Potential Role as Diagnostic and Prognostic Biomarkers: A Review. Med Sci Monit 2019; 25:3425-3434. [PMID: 31070194 PMCID: PMC6528548 DOI: 10.12659/msm.916697] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Worldwide, bladder cancer represents the ninth most common malignancy and is the 13th cause of cancer-associated death. Although surgery combined with chemotherapy and radiotherapy has improved patient outcomes, the prognosis remains poor for most patients with muscle-invasive bladder cancer. The exact mechanisms and critical regulators of bladder cancer remain unknown. Circular RNAs (circRNAs) are a distinct type of endogenous non-coding RNA. Recent studies have shown that circRNAs participate in many processes, including proliferation, invasion, migration, and apoptosis in multiple types of malignancy, including bladder cancer. Some circRNAs are dysregulated in bladder cancer and play essential roles in cancer progression. Importantly, some circRNAs may serve as diagnostic and prognostic biomarkers for bladder cancer. This review aims to summarize the findings from recent studies that have focused on the roles of human circRNAs in bladder cancer and discusses the clinical roles for circRNAs, including their potential roles as diagnostic or prognostic biomarkers.
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Affiliation(s)
- Liang Cong
- Department of Digestive Endoscopy, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Qiwei Yang
- Medical Research Center, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Chunmei Hu
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Qiong Yu
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Shuhong Hao
- Department of Hematology and Oncology, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Dongfu Li
- Department of Digestive Endoscopy, The Second Hospital of Jilin University, Changchun, Jilin, China (mainland)
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Zhang R, Zhou W, Yu Z, Yang L, Liu G, Yu H, Zhou Q, Min Z, Zhang C, Wu Q, Hu XM, Yuan Q. miR-1247-3p mediates apoptosis of cerebral neurons by targeting caspase-2 in stroke. Brain Res 2019; 1714:18-26. [PMID: 30779911 DOI: 10.1016/j.brainres.2019.02.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 11/28/2022]
Abstract
Brain stroke is one of the leading causes of death worldwide. We explored a potential stroke-related role for a newly found microRNA, miR-1247-3p, and one of its target genes, caspase-2, predicted by TargetScanVert. In the present study, we found that miR-1247-3p was downregulated during ischemia/reperfusion (I/R) and that LV-miR-1247-3p overexpression attenuated brain impairment induced by I/R. Similar results were observed in neuro2a (N2a) cells treated with oxygen-glucose deprivation/reoxygenation (OGD/R). Caspase-2 was upregulated in the I/R and OGD/R model, while Z-VDVAD-FMK - the inhibitor of caspase-2-inhibited apoptosis of N2a cells induced by OGD/R. An miR-1247-3p mimic inhibited caspase-2 expression and attenuated apoptosis of N2a cells induced by OGD/R. Myocardin-related transcription factor-A (MRTF-A) overexpression upregulated miR-1247 and mature miR-1247-3p levels and attenuated apoptosis induced by OGD/R, whereas its anti-apoptotic function could be blocked by a miR-1247-3p inhibitor. Hence, we conclude that miR-1247-3p may protect cells during brain stroke. This study offers insights for the development of effective therapeutics for promoting the survival of cerebral neurons during brain I/R injury.
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Affiliation(s)
- Rong Zhang
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China; Department of Biomedical Engineering, School of Medicine and School of Engineering, The University of Alabama at Birmingham, USA
| | - Weipin Zhou
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Zhijun Yu
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Ling Yang
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Guangqi Liu
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Haotian Yu
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Qianyi Zhou
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Zhenli Min
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Chunxiang Zhang
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China; Department of Biomedical Engineering, School of Medicine and School of Engineering, The University of Alabama at Birmingham, USA; Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Qingming Wu
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
| | - Xia-Min Hu
- College of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai, China.
| | - Qiong Yuan
- New Drug Innovation and Development Institute, Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China; Department of Biomedical Engineering, School of Medicine and School of Engineering, The University of Alabama at Birmingham, USA; Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei Province, China.
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