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Zhang G, Wu S, Xia G. MiR-326 sponges TET2 triggering imbalance of Th17/Treg differentiation to exacerbate pyroptosis of hepatocytes in concanavalin A-induced autoimmune hepatitis. Ann Hepatol 2024; 29:101183. [PMID: 38043702 DOI: 10.1016/j.aohep.2023.101183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/30/2023] [Accepted: 11/04/2023] [Indexed: 12/05/2023]
Abstract
INTRODUCTION AND OBJECTIVES MicroRNA-326 is abnormally expressed in autoimmune diseases, but its roles in autoimmune hepatitis (AIH) are unknown. In this study, we aimed to investigate the effect of miR-326 on AIH and the underlying mechanism. MATERIALS AND METHODS Concanavalin A was administrated to induce AIH in mice and the expression levels of miR-326 and TET2 was evaluated by qRT-PCR and western blot, respectively. The percentages of Th17 and Treg cells were evaluated by flow cytometry and their marker proteins were determined by western blot and ELISA. The mitochondrial membrane potential (MMP) and ROS level were tested with the JC-1 kit and DCFH-DA assay. The binding relationships between miR-326 and TET2 were verified by dual-luciferase reporter assay. The liver tissues were stained by the HE staining. In vitro, AML12 cells were cocultured with mouse CD4+T cells. The expression levels of pyroptosis-related proteins were assessed by western blot. RESULTS Concanavalin A triggered AIH and enhanced the expression level of miR-326 in mice. It increased both Th17/Treg ratio and the levels of their marker proteins. The expression of TET2 was decreased in AIH mice. Knockdown of miR-326 could decrease the levels of pyroptosis-related proteins, the ROS level and increase MMP. In mouse CD4+T cells, miR-326 sponged TET2 to release IL-17A. Coculture of AML12 cells with isolated CD4+T cells from miR-326 knockdown AIH mice could relieve pyroptosis. CONCLUSIONS Knockdown of miR-326 exerted anti-pyroptosis effects via suppressing TET2 and downstream NF-κB signaling to dampen AIH. We highlighted a therapeutic target in AIH.
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Affiliation(s)
- Genglin Zhang
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences; Key Lab for Biotech-Drugs of National Health Commission; Key Lab for Rare & Uncommon Diseases of Shandong Province, Jinan city, Shandong province 250062, PR China
| | - Sensen Wu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan city, Shandong province 250012, PR China
| | - Guangtao Xia
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University (Shandong Provincial Hospital), No. 324, Jingwuweiqi Road, Jinan city, Shandong province 250021, PR China.
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2
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Huang SH, Hsieh HC, Shieh JM, Su WC, Wang YC. Downregulation of microRNA-326 enhances ZNF322A expression, transcriptional activity and tumorigenic effects in lung cancer. Biofactors 2024; 50:214-227. [PMID: 37647209 DOI: 10.1002/biof.2004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 08/11/2023] [Indexed: 09/01/2023]
Abstract
Zinc finger protein ZNF322A is an oncogenic transcription factor. Overexpression of ZNF322A activates pro-metastasis, cancer stemness, and neo-angiogenesis-related genes to enhance lung cancer progression. However, the upstream regulator of ZNF322A is not well defined. Dysregulation of microRNAs (miRNAs) can mediate cancer cell growth, migration, and invasion to promote tumorigenesis. Here, we uncover the mechanism of miRNA-mediated transcriptional regulation in ZNF322A-driven oncogenic events. ZNF322A harbors several putative miRNA-binding sites in the 3'-untranslated region (UTR). We validated that miR-326 downregulated ZNF322A-3'-UTR luciferase activity and mRNA expression. Furthermore, miR-326 suppressed the expression of ZNF322A-driven cancer-associated genes such as cyclin D1 and alpha-adducin. Reconstitution experiments by ectopic overexpression of ZNF322A abolished miR-326-suppressed cancer cell proliferation and cell migration capacity. Moreover, miR-326 attenuated ZNF322A-induced tumor growth and lung tumor metastasis in vivo. Clinically, the expression of miR-326 negatively correlated with ZNF322A mRNA expression in surgically resected tissues from 120 non-small cell lung cancer (NSCLC) patients. Multivariate Cox regression analysis demonstrated that NSCLC patients with low miR-326/high ZNF322A profile showed poor overall survival. Our results reveal that the deregulated expression of miR-326 leads to hyperactivation of ZNF322A-driven oncogenic signaling. Targeting the miR-326/ZNF322A axis would provide new therapeutic strategies for lung cancer patients.
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Affiliation(s)
- Shih-Hsuan Huang
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hung-Chia Hsieh
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jiunn-Min Shieh
- Division of Chest Medicine, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
- The Center of General Education, Chia Nan University of Pharmacy & Science, Tainan, Taiwan
| | - Wou-Chou Su
- Division of Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Ching Wang
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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4
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Huang J, Yu Y, Pang D, Li C, Wei Q, Cheng Y, Cui Y, Ou R, Shang H. Lnc-HIBADH-4 Regulates Autophagy-Lysosome Pathway in Amyotrophic Lateral Sclerosis by Targeting Cathepsin D. Mol Neurobiol 2023:10.1007/s12035-023-03835-5. [PMID: 38135852 DOI: 10.1007/s12035-023-03835-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023]
Abstract
Amyotrophic lateral sclerosis (ALS) is the most prevalent and lethal class of severe motor neuron diseases (MND) with no efficacious treatment. The pathogenic mechanisms underlying ALS remain unclear. Nearly 90% of patients exhibit sporadic onset (sALS). Therefore, elucidating the pathophysiology of ALS is imperative. Long non-coding RNA (lncRNA) is a large class of non-coding RNAs that regulate transcription, translation, and post-translational processes. LncRNAs contribute to the pathogenesis of diverse neurodegenerative disorders and hold promise as targets for interference in the realm of neurodegeneration. However, the mechanisms of which lncRNAs are involved in ALS have not been thoroughly investigated. We identified and validated a downregulated lncRNA, lnc-HIBADH-4, in ALS which correlated with disease severity and overall survival. Lnc-HIBADH-4 acted as a "molecular sponge" regulating lysosomal function through the lnc-HIBADH-4/miR-326/CTSD pathway, thereby impacting autophagy-lysosome dynamics and the levels of cell proliferation and apoptosis. Therefore, this study discovered and revealed the role of lnc-HIBADH-4 in the pathogenesis of ALS. With further research, lnc-HIBADH-4 is expected to provide a new biomarker in the diagnosis and treatment of ALS.
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Affiliation(s)
- Jingxuan Huang
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China
| | - Yujiao Yu
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China
| | - Dejiang Pang
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China
| | - Chunyu Li
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China
| | - Qianqian Wei
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China
| | - Yangfan Cheng
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China
| | - Yiyuan Cui
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China
| | - Ruwei Ou
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China
| | - Huifang Shang
- Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center, West China Hospital, Sichuan University, No.37, Guoxue Lane, Chengdu, 610041, Sichuan, China.
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Wu Q, Wang P, Peng Q, Kang Z, Deng Y, Li J, Chen Y, Li J, Ge F. Adhesion G Protein-Coupled Receptor G2 Promotes Hepatocellular Carcinoma Progression and Serves as a Neutrophil-Related Prognostic Biomarker. Int J Mol Sci 2023; 24:16986. [PMID: 38069309 PMCID: PMC10707058 DOI: 10.3390/ijms242316986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Adhesion G protein-coupled receptor G2 (ADGRG2) is an orphan adhesion G protein-coupled receptor (GPCR), which performs a tumor-promoting role in certain cancers; however, it has not been systematically investigated in hepatocellular carcinoma (HCC). In the current study, we utilized multiple databases to analyze the expression and diagnostic and prognostic value of ADGRG2 in HCC and its correlation with immune infiltration and inflammatory factors. The function and upstream regulatory miRNA of ADGRG2 were validated through qPCR, Western blot, CCK8, wound healing, and dual luciferase assays. It turned out that ADGRG2 was significantly higher in HCC and had a poor survival rate, especially in AFP ≤ 400 ng/mL subgroups. Functional enrichment analysis suggested that ADGRG2 may be involved in cancer pathways and immune-related pathways. In vitro, siRNA-mediated ADGRG2 silencing could inhibit the proliferation and migration of Huh7 and HepG2 cells. There was a highly significant positive correlation between ADGRG2 and neutrophils. Moreover, NET-related genes were filtered and confirmed, such as ENO1 and S100A9. Meanwhile, the high expression of ADGRG2 was also accompanied by the highest number of inflammatory cytokines, chemokines, and chemokine receptors and good immunotherapy efficacy. Finally, AGDGR2 may be sensitive to two drugs (PIK-93 and NPK76-II-72-1) and can be targeted by miR-326. In conclusion, ADGRG2 may serve as a novel biomarker and drug target for HCC diagnosis, immunotherapy, and prognosis and was related to neutrophils and the inflammatory process of liver cancer development.
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Affiliation(s)
- Qian Wu
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Pei Wang
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Qihang Peng
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Zhongcui Kang
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Yiting Deng
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Jiayi Li
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Ying Chen
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Jin Li
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Feng Ge
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;
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Wangpu X, Zhao J, Yu C, Yu S, Wang H, Yuan Z, Huang X. CircATP13A1 (hsa_circ_0000919) promotes cell proliferation and metastasis and inhibits cell apoptosis in pancreatic ductal adenocarcinoma via the miR-186/miR-326/HMGA2 axis: implications for novel therapeutic targets. Am J Cancer Res 2023; 13:5610-5625. [PMID: 38058810 PMCID: PMC10695776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/27/2023] [Indexed: 12/08/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a notoriously aggressive malignancy with a survival rate of merely 9%. The prognosis in patients with PDAC is relatively poor, particularly in patients with advanced distant metastases. However, the mechanisms of PDAC progression remain elusive. Circular RNAs (circRNAs) have been implicated in the development of various malignancies, including PDAC. Therefore, this study aimed to investigate how a novel circRNA, circATP13A1, regulates PDAC progression. We used the GEO database to determine circATP13A1 expression levels in cancer and adjacent cells and employed the limma package of R software to identify differentially expressed circRNAs. We detected the expression of circATP13A1, miR-186, and miR-326 using qRT-PCR and investigated the effect of circATP13A1 on cell proliferation, migration, invasion, and apoptosis in vitro using the Cell Counting Kit-8 (CCK-8), the transwell migration assay, and the flow cytometry assay. We then performed RNA pull-down assay, RNA immunoprecipitation (RIP), and Western blot to verify the interaction between circATP13A1, miR-186, miR-326, and HMGA2. Moreover, we used a naked mice model to determine how circATP13A1 affects tumor growth and progression in vivo. Loss and gain of function analyses revealed that circATP13A1 upregulation promotes cell proliferation, migration, invasion and tumor growth both in vitro and in vivo, which results in PDAC progression and poor prognosis in patients. CircATP13A1 knockdown significantly impaired cell proliferation and migration of PDAC cell lines. Additionally, circATP13A1 knockdown significantly increased the expression of miR-186 and miR-326, while reducing the expression of HMGA2 (P < 0.05), indicating that miR-186 and miR-326 are downstream targets of circATP13A1. Rescue experiments support the interactions between circATP13A1, miR-186, miR-326, and HMGA2. In conclusion, we demonstrated that circATP13A1 sponges the miR-186/miR-326/HMGA2/axis, acting as an oncogene to promote PDAC development.
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Affiliation(s)
- Xiongzhi Wangpu
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
| | - Jingkun Zhao
- Department of Gastrointestinal Surgery and Minimally Invasive Surgery, Ruijin Hospital, Shanghai Jiao Tong University, School of MedicineShanghai 200001, China
| | - Chaoran Yu
- Department of General Surgery, Shanghai 9 People’s Hospital, Shanghai Jiao Tong University, School of MedicineShanghai 200011, China
| | - Song Yu
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
| | - Hongcheng Wang
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
| | - Zhou Yuan
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
| | - Xinyu Huang
- Department of Hepatobiliary and Pancreatic Surgery, Shanghai 6 People’s Hospital Affiliated to Shanghai Jiao Tong University, School of MedicineNo. 600 Yishan Rd, Shanghai 200233, China
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7
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Pattnaik B, Negi V, Chaudhuri R, Desiraju K, Faizan MI, Akhtar A, Ansari MS, Shakir M, Gheware A, Prakash YS, Guleria R, Ghosh B, Agrawal A, Ahmad T. MiR-326-mediated overexpression of NFIB offsets TGF-β induced epithelial to mesenchymal transition and reverses lung fibrosis. Cell Mol Life Sci 2023; 80:357. [PMID: 37950757 PMCID: PMC11072886 DOI: 10.1007/s00018-023-05005-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 11/13/2023]
Abstract
Idiopathic Pulmonary Fibrosis (IPF) is a progressively fatal and incurable disease characterized by the loss of alveolar structures, increased epithelial-mesenchymal transition (EMT), and aberrant tissue repair. In this study, we investigated the role of Nuclear Factor I-B (NFIB), a transcription factor critical for lung development and maturation, in IPF. Using both human lung tissue samples from patients with IPF, and a mouse model of lung fibrosis induced by bleomycin, we showed that there was a significant reduction of NFIB both in the lungs of patients and mice with IPF. Furthermore, our in vitro experiments using cultured human lung cells demonstrated that the loss of NFIB was associated with the induction of EMT by transforming growth factor beta (TGF-β). Knockdown of NFIB promoted EMT, while overexpression of NFIB suppressed EMT and attenuated the severity of bleomycin-induced lung fibrosis in mice. Mechanistically, we identified post-translational regulation of NFIB by miR-326, a miRNA with anti-fibrotic effects that is diminished in IPF. Specifically, we showed that miR-326 stabilized and increased the expression of NFIB through its 3'UTR target sites for Human antigen R (HuR). Moreover, treatment of mice with either NFIB plasmid or miR-326 reversed airway collagen deposition and fibrosis. In conclusion, our study emphasizes the critical role of NFIB in lung development and maturation, and its reduction in IPF leading to EMT and loss of alveolar structures. Our study highlights the potential of miR-326 as a therapeutic intervention for IPF. The schema shows the role of NFIB in maintaining the normal epithelial cell characteristics in the lungs and how its reduction leads to a shift towards mesenchymal cell-like features and pulmonary fibrosis. A In normal lungs, NFIB is expressed abundantly in the epithelial cells, which helps in maintaining their shape, cell polarity and adhesion molecules. However, when the lungs are exposed to factors that induce pulmonary fibrosis, such as bleomycin, or TGF-β, the epithelial cells undergo epithelial to mesenchymal transition (EMT), which leads to a decrease in NFIB. B The mesenchymal cells that arise from EMT appear as spindle-shaped with loss of cell junctions, increased cell migration, loss of polarity and expression of markers associated with mesenchymal cells/fibroblasts. C We designed a therapeutic approach that involves exogenous administration of NFIB in the form of overexpression plasmid or microRNA-326. This therapeutic approach decreases the mesenchymal cell phenotype and restores the epithelial cell phenotype, thus preventing the development or progression of pulmonary fibrosis.
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Affiliation(s)
- Bijay Pattnaik
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India
- Department of Pulmonary, Critical Care & Sleep Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Vinny Negi
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India
| | - Rituparna Chaudhuri
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India
| | - Koundinya Desiraju
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India
| | - Md Imam Faizan
- Multidisciplinary Centre for Advanced Research & Studies, Jamia Millia Islamia, New Delhi, 110025, India
| | - Areej Akhtar
- Multidisciplinary Centre for Advanced Research & Studies, Jamia Millia Islamia, New Delhi, 110025, India
| | - Md Sufyan Ansari
- Multidisciplinary Centre for Advanced Research & Studies, Jamia Millia Islamia, New Delhi, 110025, India
| | - Md Shakir
- Multidisciplinary Centre for Advanced Research & Studies, Jamia Millia Islamia, New Delhi, 110025, India
| | - Atish Gheware
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India
| | - Y S Prakash
- Departments of Anesthesiology, Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Randeep Guleria
- Department of Pulmonary, Critical Care & Sleep Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Balaram Ghosh
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India
| | - Anurag Agrawal
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India.
- Trivedi School of Biosciences, Ashoka University, NH 44, Rajiv Gandhi Education City, Sonipat, Haryana, 131029, India.
| | - Tanveer Ahmad
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007, India.
- Multidisciplinary Centre for Advanced Research & Studies, Jamia Millia Islamia, New Delhi, 110025, India.
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8
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Nakanishi T, Yoneshima Y, Okamura K, Yanagihara T, Hashisako M, Iwasaki T, Haratake N, Mizusaki S, Ota K, Iwama E, Takenaka T, Tanaka K, Yoshizumi T, Oda Y, Okamoto I. MicroRNA-326 negatively regulates CD155 expression in lung adenocarcinoma. Cancer Sci 2023; 114:4101-4113. [PMID: 37565582 PMCID: PMC10551600 DOI: 10.1111/cas.15921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 06/19/2023] [Accepted: 07/13/2023] [Indexed: 08/12/2023] Open
Abstract
Treatment with immune checkpoint inhibitors induces a durable response in some patients with non-small-cell lung cancer, but eventually gives rise to drug resistance. Upregulation of CD155 expression is implicated as one mechanism of resistance to programmed death receptor-1 (PD-1)/PD-1 ligand (PD-L1) inhibitors, and it is therefore important to characterize the mechanisms underlying regulation of CD155 expression in tumor cells. The aim of this study was to identify microRNAs (miRNAs) that might regulate CD155 expression at the posttranscriptional level in lung cancer. Comprehensive miRNA screening with target prediction programs and a dual-luciferase reporter assay identified miR-346, miR-328-3p, miR-326, and miR-330-5p as miRNAs that bind to the 3'-UTR of CD155 mRNA. Forced expression of these miRNAs suppressed CD155 expression in lung cancer cell lines. Immunohistochemical staining of CD155 in tissue specimens from 57 patients with lung adenocarcinoma revealed the median tumor proportion score for CD155 to be 68%. The abundance of miR-326 in these specimens with a low level of CD155 expression was significantly greater than in specimens with a high level (p < 0.005). Our results thus suggest that miR-326 negatively regulates CD155 expression in lung adenocarcinoma and might therefore play a role in the development of resistance to PD-1/PD-L1 inhibitors.
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Affiliation(s)
- Takayuki Nakanishi
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Yasuto Yoneshima
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Koji Okamura
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Toyoshi Yanagihara
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Mikiko Hashisako
- Department of Anatomic Pathology, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Takeshi Iwasaki
- Department of Anatomic Pathology, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Naoki Haratake
- Department of Surgery and Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Shun Mizusaki
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Keiichi Ota
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Eiji Iwama
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Tomoyoshi Takenaka
- Department of Surgery and Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Kentaro Tanaka
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Tomoharu Yoshizumi
- Department of Surgery and Science, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Isamu Okamoto
- Department of Respiratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
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Du A, Yang Q, Luo X. Cuproptosis-related lncRNAs as potential biomarkers of AML prognosis and the role of lncRNA HAGLR/ miR-326/CDKN2A regulatory axis in AML. Am J Cancer Res 2023; 13:3921-3940. [PMID: 37818049 PMCID: PMC10560936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 05/19/2023] [Indexed: 10/12/2023] Open
Abstract
Acute myeloblastic leukemia (AML) is the most prevalent form of AML in adults. Despite the availability of various treatment options, including radiotherapy and chemotherapy, many patients fail to respond to treatment or relapse. Copper is a necessary cofactor for all organisms; however, it turns toxic when concentrations reach a certain threshold maintained by homeostatic systems that have been conserved through evolution. However, the mechanism through which excess copper triggers cell death remains unknown. In this study, data on long non-coding RNAs (lncRNAs) related to cuproptosis were retrieved from publicly available databases. LASSO and univariate and multivariate Cox regression analyses were performed to establish an lncRNA model associated with cuproptosis specific to AML. To investigate the risk model, the Kaplan-Meier curve, principal component analysis, functional enrichment analysis, and nomographs were employed. The underlying clinicopathological characteristics were determined, and drug sensitivity predictions against the model were identified. Six cuproptosis-related lncRNA-based risk models were identified as the independent prognostic factors. By regrouping patients using a model-based method, we were able to more accurately differentiate patients according to their responses to immunotherapy. In addition, prospective compounds targeting AML subtypes have been identified. Using qRT-PCR, we examined the expression levels of six cuproptosis-associated lncRNAs in 30 clinical specimens. The cuproptosis-associated lncRNA risk-scoring model developed herein has implications in monitoring AML prognosis and in the clinical prediction of the response to immunotherapy. Furthermore, we identified and verified the ceRNA of the cuproptosis-related lncRNA HAGLR/miR-326/CDKN2A regulatory axis using bioinformatic tools. HAGLR is highly expressed in AML and AML cell lines. HAGLR inhibition significantly reduced the proliferation of AML cells and promoted apoptosis. Elesclomol promotes the degradation of CDKN2A and inhibits the proliferation of AML cells. Elesclomol combined with si-HAGLR inhibited the AML progression of AML both in vitro and in vivo.
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Affiliation(s)
- Ashuai Du
- Department of Infectious Diseases, Guizhou Provincial People’s HospitalGuiyang 550002, Guizhou, China
| | - Qinglong Yang
- Department of General Surgery, Guizhou Provincial People’s HospitalGuiyang 550002, Guizhou, China
| | - Xinhua Luo
- Department of Infectious Diseases, Guizhou Provincial People’s HospitalGuiyang 550002, Guizhou, China
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An J, Shi J, Yang C, Luo J, Li Y, Ren J, Lv Y, Zhang Y. Regulation of tumorigenesis and ferroptosis in non-small cell lung cancer by a novel BBOX1-AS1/ miR-326/PROM2 axis. Mol Cell Biochem 2023:10.1007/s11010-023-04837-6. [PMID: 37639200 DOI: 10.1007/s11010-023-04837-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 08/14/2023] [Indexed: 08/29/2023]
Abstract
Dysregulation of long non-coding RNAs (lncRNAs) is associated with the tumorigenesis and ferroptosis of non-small cell lung cancer (NSCLC). BBOX1 antisense RNA 1 (BBOX1-AS1) functions as an oncogenic driver in NSCLC. Here, we aim to investigate the regulation effect and underlying mechanism of BBOX1-AS1 in NSCLC progression and ferroptosis. RNA expression was detected by quantitative real-time PCR (qRT-PCR), and protein expression was measured by immunoblotting. Cell growth was assessed by CCK-8 and colony formation assays. Transwell assay was applied to evaluate cell invasion and migration. RNA pull-down and dual-luciferase reporter assays were applied to verify the relationship between miR-326 and BBOX1-AS1 or prominin 2 (PROM2). The role of BBOX1-AS1 in NSCLC tumorigenicity was also analyzed by xenograft assays. Silencing BBOX1-AS1 or PROM2 impeded NSCLC cell growth, migration, and invasion. Silencing BBOX1-AS1 induced cell apoptosis and ferroptosis. BBOX1-AS1 up-regulated PROM2 expression, and re-expression of PROM2 reversed the effects of BBOX1-AS1 depletion on cell malignant phenotypes and ferroptosis. BBOX1-AS1 post-transcriptionally modulated PROM2 expression by sponging miR-326. MiR-326 was validated as a mediator of BBOX1-AS1 in regulating NSCLC cell malignant phenotypes and ferroptosis. Additionally, BBOX1-AS1 deficiency in vivo resulted in the suppression of xenograft tumor growth. Together, our study defines a novel BBOX1-AS1/miR-326/PROM2 axis in regulating NSCLC malignant progression and ferroptosis, offering new evidence for the oncogenic role of BBOX1-AS1 in NSCLC. These findings may provide a basis for the future usage of targeting BBOX1-AS1 in NSCLC treatment.
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Affiliation(s)
- Jinlu An
- Department of Geriatric Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, China
| | - Jiang Shi
- Department of Geriatric Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, China.
| | - Chao Yang
- Department of Geriatric Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, China
| | - Junfang Luo
- Department of Geriatric Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, China
| | - Yuning Li
- Department of Geriatric Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, China
| | - Jie Ren
- Department of Geriatric Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, China
| | - Yuanjun Lv
- Department of Geriatric Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, China
| | - Yang Zhang
- Department of Geriatric Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052, China
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11
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Ayoufu A, Paierhati P, Qiao L, Zhang N, Abudukeremu M. RUSC1-AS1 promotes the malignant progression of breast cancer depending on the regulation of the miR-326/XRCC5 pathway. Thorac Cancer 2023; 14:2504-2514. [PMID: 37429610 PMCID: PMC10447167 DOI: 10.1111/1759-7714.15035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Many long noncoding RNAs (lncRNAs) are the key regulators for cancer progression, including breast cancer (BC). RUSC1 antisense 1 (RUSC1-AS1) has been found to be highly expressed in BC, but its role and potential molecular mechanism in BC remain to be further elucidated. METHODS Quantitative reverse transcription-polymerase chain reaction (RT-PCR) was utilized to measure RUSC1-AS1, microRNA (miR)-326 and X-ray repair cross-complementing group 5 (XRCC5) expression. Cell proliferation, metastasis, cell cycle, apoptosis and angiogenesis were determined by cell counting kit-8, colony formation, transwell, flow cytometry and tube formation assays. Protein expression was detected by western blot analysis. The targeted relationship between miR-326 and RUSC1-AS1 or XRCC5 was validated using dual-luciferase reporter assay and RIP assay. Xenograft models were constructed to uncover the effect of RUSC1-AS1 on BC tumorigenesis. RESULTS RUSC1-AS1 was upregulated in BC, and its downregulation suppressed BC proliferation, metastasis, cell cycle, angiogenesis, and tumor growth. MiR-326 was confirmed to be sponged by RUSC1-AS1, and its inhibitor reversed the regulation of RUSC1-AS1 silencing on BC progression. XRCC5 could be targeted by miR-326. Overexpression of XRCC5 reversed the inhibitory impacts of miR-326 on BC progression. CONCLUSION RUSC1-AS1 could serve as a sponge of miR-326 to promote BC progression by targeting XRCC5, suggesting that RUSC1-AS1 might be a target for BC treatment.
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Affiliation(s)
- Aisikeer Ayoufu
- Department of Breast Surgery Ward TwoAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Puerkaiti Paierhati
- Department of Breast and Thyroid SurgeryAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Lei Qiao
- Department of Breast and Thyroid SurgeryAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Nan Zhang
- Department of Breast and Thyroid SurgeryAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Muzhapaer Abudukeremu
- Department of Breast and Thyroid SurgeryAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
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Qian X, Zheng S, Yu Y. CircUBE3B High Expression Participates in Sevoflurane-Induced Human Hippocampal Neuron Injury via Targeting miR-326 and Regulating MYD88 Expression. Neurotox Res 2023; 41:16-28. [PMID: 36585543 DOI: 10.1007/s12640-022-00617-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/19/2022] [Accepted: 12/05/2022] [Indexed: 01/01/2023]
Abstract
The clinical application of Sevoflurane (Sevo) brings about non-negligible neuron injury, leading to postoperative cognitive dysfunction (POCD). However, related pathogenesis is complex and not fully established. We aimed to disclose the role of circRNA UBE3B (circUBE3B) in neuron injury induced by Sevo. Cell viability and apoptosis were determined by CCK-8 and flow cytometry experiments. Inflammation production was monitored by ELISA. The expression of circUBE3B, miR-326, and myeloid differentiation factor 88 (MYD88) mRNA was assessed by quantitative real-time PCR (qPCR). Apoptosis-associated markers and MYD88 protein were quantified by western blot. The putative binding site between miR-326 and circUBE3B or MYD88 was verified by a dual-luciferase reporter experiment, and their binding was validated by a pull-down assay. Sevo treatment weakened cell viability and promoted cell apoptosis and inflammatory response. CircUBE3B expression was elevated in Sevo-treated neurons. Sevo-induced neuron injury was alleviated by circUBE3B downregulation but aggravated by circUBE3B overexpression. MiR-326 was targeted by circUBE3B, and miR-326 inhibition recovered neuron injury that was repressed by circUBE3B absence in Sevo-treated neurons. MiR-326 interacted with MYD88. MiR-326 enrichment attenuated Sevo-induced neuron injury, while these effects were reversed by MYD88 overexpression. CircUBE3B dysregulation was involved in Sevo-induced human hippocampal neuron injury via targeting the miR-326/MYD88 network.
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Liu J, Zhan W, Chen G, Yan S, Chen W, Li R. SP1-induced PROX1-AS1 contributes to tumor progression by regulating miR-326/FBXL20 axis in colorectal cancer. Cell Signal 2023; 101:110503. [PMID: 36374774 DOI: 10.1016/j.cellsig.2022.110503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 11/15/2022]
Abstract
Long noncoding RNAs (lncRNAs) play pivotal roles in cancers by regulating tumorigenesis and metastasis. LncRNA PROX1-AS1 has been reported to be involved in tumor progression, however, its role in colorectal cancer (CRC) remains ambiguous. Based on TCGA and GTEx databases, we found that the expression of PROX1-AS1 was upregulated in CRC tissues and cells. Bioinformatics analysis revealed that high PROX1-AS1 expression was associated with poor overall survival. Functionally, PROX1-AS1 knockdown suppressed CRC cell proliferation, migration, and invasion in vitro, as well as inhibiting tumor growth in vivo. Mechanistically, PROX1-AS1 was identified to act as a miR-326 sponge by luciferase reporter and RIP assay. Meanwhile, we found that the transcription factor SP1 activated PROX1-AS1/miR-32/FBXL20 axis, thereby promoting CRC progression. Our data demonstrated that PROX1-AS1 served as a promising prognostic biomarker for CRC, and the potential mechanism was unraveled.
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Affiliation(s)
- Jing Liu
- Department of Imaging, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province 550004, China
| | - Wei Zhan
- Department of General Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province 550004, China
| | - Gang Chen
- Clinical Medical College, Guizhou Medical University, Guiyang, Guizhou Province 550004, China
| | - Shunkang Yan
- Clinical Medical College, Guizhou Medical University, Guiyang, Guizhou Province 550004, China
| | - Wen Chen
- Clinical Medical College, Guizhou Medical University, Guiyang, Guizhou Province 550004, China
| | - Rui Li
- Department of Traditional Chinese Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province 550002, China.
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Dong C, Yang L, Zhao G. Circ-PGAM1 Enhances Matrine Resistance of Non-Small Cell Lung Cancer via the miR-326/CXCR5 Axis. Cancer Biother Radiopharm 2022. [PMID: 36576783 DOI: 10.1089/cbr.2022.0039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background: Circular RNAs (circ-RNAs) have been demonstrated to influence initiation, drug resistance, and metastasis of tumors. However, the effects of circular-phosphoglycerate mutase 1 (circ-PGAM1) on matrine resistance in nonsmall cell lung cancer (NSCLC) remain unknown. Materials and Methods: The reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was used to determine gene expression. The terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and cell colony formation assays were used to evaluate NSCLC apoptosis and cell proliferation after indicated treatments, respectively. Results: circ-PGAM1 was upregulated in human NSCLC cell lines (H1299 and A549) compared with the human normal lung epithelial (BEAS-2B) cells. circ-PGAM1 overexpression reversed the matrine treatment-induced inhibition on proliferation of NSCLC cells (A549 and H1299) and rescued the matrine treatment-stimulated apoptosis of these cells. miR-326 was demonstrated to interact with circ-PGAM1. circ-PGAM1 knockdown enhanced the antitumor effect of matrine on NSCLC cell proliferation and apoptosis, which was reversed by miR-326 inhibition. The authors also identified CXCR5 as a key downstream target of miR-326 in A549 cells. Conclusions: circ-PGAM1 enhances matrine resistance of NSCLC cells through the miR-326/CXCR5 axis. The authors' findings provide new insights into NSCLC-targeted therapy.
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Affiliation(s)
- Caijun Dong
- Department of Thoracic Surgery, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Liangwei Yang
- Department of Cardiothoracic Surgery, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Guofang Zhao
- Department of Thoracic Surgery, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, China
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15
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Anbazhagan AN, Priyamvada S, Kumar A, Jayawardena D, Borthakur A, Gill RK, Alrefai WA, Dudeja PK, Saksena S. Downregulation of NHE-3 (SLC9A3) expression by MicroRNAs in intestinal epithelial cells. Am J Physiol Cell Physiol 2022; 323:C1720-C1727. [PMID: 36189974 PMCID: PMC9722255 DOI: 10.1152/ajpcell.00294.2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/22/2022]
Abstract
Na+/H+ exchanger-3 (NHE-3) is the major apical membrane transporter involved in vectorial Na+ absorption in the intestine. Dysregulation of NHE-3 expression and/or function has been implicated in pathophysiology of diarrhea associated with gut inflammation and infections. Therefore, it is critical to understand the mechanisms involved in the regulation of NHE-3 expression. MicroRNAs (miRNAs) are highly conserved small RNAs that can regulate gene expression at the posttranscriptional level. To date, however, very little is known about the regulation of NHE-3 expression by microRNAs. Therefore, current studies were undertaken to examine the potential miRNA candidates that can regulate the expression of NHE-3 in intestinal epithelial cells. In silico analysis, using different algorithms, predicted several miRNAs that target NHE-3. MicroRNAs with highest context and target score, miR-326, miR-744-5p, and miR-330-5p, were selected for the current study. Human NHE-3 gene 3' untranslated region [3'UTR; 160 base pair (bp)] was cloned into pmirGLO vector upstream of luciferase reporter and transiently transfected with mimics of miR-326, miR-744-5p, and miR-330-5p into Caco-2, HT-29, and SK-CO15 cells. Cotransfection of NHE-3 3' UTR with miR-326 and -miR-330-5p mimics resulted in a significant decrease in relative luciferase activity. Transfection of miR-326 and -330-5p mimics into SK-CO15 cells significantly decreased the NHE-3 protein expression, with no change in NHE-3 messenger ribonucleic acid (mRNA) levels. Our findings demonstrate a novel mechanism for posttranscriptional regulation of NHE-3 by miR-326 and -330-5p by translational repression. We speculate that miR-326 and -330-5p dependent pathways may be involved in modulating NHE-3 expression under physiological and pathophysiological conditions.
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Affiliation(s)
- Arivarasu N Anbazhagan
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Shubha Priyamvada
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Anoop Kumar
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
| | - Dulari Jayawardena
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Alip Borthakur
- Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia
| | - Ravinder K Gill
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Waddah A Alrefai
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
| | - Pradeep K Dudeja
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
| | - Seema Saksena
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
- Jesse Brown VA Medical Center, Chicago, Illinois
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Wang Z, Liu J, Yang T, Wang Q, Liang R, Tang J. Circ_0082182 upregulates the NFIB level via sponging miR-326 to promote oxaliplatin resistance and malignant progression of colorectal cancer cells. Mol Cell Biochem 2022; 478:1045-1057. [PMID: 36219357 DOI: 10.1007/s11010-022-04551-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 08/29/2022] [Indexed: 11/26/2022]
Abstract
Circular RNAs (circRNAs) are key regulators in tumor metastasis and drug resistance. This study was designed to investigate circ_0082182 function and mechanism in oxaliplatin (OXA) resistance and cancer progression of colorectal cancer (CRC). The circ_0082182, microRNA-326 (miR-326), and nuclear factor I B (NFIB) levels were quantified by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Cell sensitization was analyzed by Cell Counting Kit-8 assay. The proliferation ability was determined via EdU assay, and apoptosis was measured by flow cytometry. Transwell assay and wound healing assay were performed to assess cell invasion and migration. The protein level was examined through Western blot. The binding interaction was conducted via dual-luciferase reporter assay. Xenograft tumor assay was used to explore the circ_0082182 function in vivo. The circ_0082182 level was upregulated in OXA-resistant CRC samples and cells. Downregulation of circ_0082182 suppressed OXA resistance, proliferation, invasion, and migration but promoted apoptosis of OXA-resistant CRC cells. Circ_0082182 acted as a sponge for miR-326. The regulatory role of circ_0082182 was ascribed to the miR-326 sponging function. MiR-326 directly targeted NFIB to impede OXA resistance and cancer progression in CRC cells. NFIB level was regulated by circ_0082182 via sponging miR-326. Circ_0082182 promoted tumor growth in OXA-resistant xenograft tumor model through mediating the miR-326/NFIB axis. These data suggested that circ_0082182 elevated the NFIB expression to regulate OXA resistance and CRC progression by absorbing miR-326.
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Affiliation(s)
- Zhifeng Wang
- Department of Digestive Endoscopy, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
| | - Jingmei Liu
- Department of Gastroenterology, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi, China
| | - Tao Yang
- Department of Gastroenterology, Guangyuan Hospital of Traditional Chinese Medicine, Guangyuan, Sichuan, China
| | - Qinqin Wang
- Department of Normal Surgical, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
| | - Rong Liang
- Department of Digestive Endoscopy, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
| | - Jinliang Tang
- Department of Gastroenterology, Jincheng People's Hospital, No. 456, Wenchang East Street, Jincheng, 048000, Shanxi, China.
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Liang Y, Miao Y, Xiang J. Circular RNA circESPL1 knockdown alleviates lipopolysaccharide (LPS)-induced lung cell injury via sponging miR-326 to regulate MAPK14. Int Immunopharmacol 2022; 112:109146. [PMID: 36030691 DOI: 10.1016/j.intimp.2022.109146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/25/2022] [Accepted: 08/05/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Infantile pneumonia (IP) is a common inflammatory disease, which brings a heavy burden to young children's health. Previous studies suggested that circular RNA (circRNA) hsa_circ_0026579 (also called circESPL1) was significantly upregulated in pneumonia patients, which was associated with the disease severity. This subject aimed to explore the functional effects and potential regulatory mechanism of circESPL1 on lipopolysaccharide (LPS)-induced lung cell injury. METHODS WI-38 and MRC-5 cells were stimulated by LPS to mimic the inflammatory injury model. CircESPL1, microRNA-326 (miR-326), and Mitogen-Activated Protein Kinase 14 (MAPK14)levels were measured using real-time quantitative polymerase chain reaction (RT-qPCR). Cell Counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EdU), and flow cytometry assays were performed to assess cell proliferation and apoptosis. Western blot analysis of B-cell lymphoma-2 (Bcl-2), Bcl-2 related X protein (Bax), C-caspase 3, and MAPK14 protein levels. Tumor necrosis factor-α (TNF-α), Interleukin-6 (IL-6), and IL-1β levels were examined using an Enzyme-linked immunosorbent assay (ELISA). Using Starbase analysis, the binding between miR-326 and circESPL1 or MAPK14 was predicted, followed by confirmation using a dual-luciferase reporter and RNA Immunoprecipitation (RIP) assays. RESULTS Increased circESPL1 and MAPK14, and reduced miR-326 were observed in serum samples from preeclampsia sufferers and LPS-treated lung cells (P < 0.05). Furthermore, circESPL1 deficiency overturned LPS-mediated cell proliferation, apoptosis, and inflammatory response in vitro (P < 0.05). In terms of molecular mechanisms, circESPL1 worked as a sponge of miR-326, and miR-326 absence reversed the protective role of circESPL1 silencing on LPS-triggered lung cell injury (P < 0.05). Also, miR-326 directly targeted MAPK14, and MAPK14 overexpression abolished miR-326-mediated impacts under LPS treatment (P < 0.05). CONCLUSION CircESPL1 knockdown might attenuate LPS-caused lung cell injury by regulating the miR-326/ MAPK14 axis, providing useful insight for exploring a novel therapeutic approach for IP.
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Affiliation(s)
- Yamei Liang
- Department of Pediatrics, Taizhou First People's Hospital, China
| | - Yingying Miao
- Department of Pediatrics, Taizhou First People's Hospital, China
| | - Jingjing Xiang
- Department of Pediatrics, Taizhou First People's Hospital, China.
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18
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Yang L, Chen Y. Circ_0008717 Sponges miR-326 to Elevate GATA6 Expression to Promote Breast Cancer Tumorigenicity. Biochem Genet 2022; 61:578-596. [PMID: 36001185 DOI: 10.1007/s10528-022-10270-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 08/05/2022] [Indexed: 12/09/2022]
Abstract
Circular RNAs (circRNAs) have been reported to paly roles in the progression and management of breast cancers (BC). This work aimed to detect the role and mechanism of circ_0008717 in BC tumorigenesis. Expression levels of genes and proteins were evaluated by quantitative real-time polymerase chain reaction and western blot. In vitro assays were conducted using cell counting kit-8, colony formation, transwell, tube formation, and flow cytometry assays, respectively. The interaction between miR-326 and circ_0008717 or GATA6 (GATA Binding Protein six) was confirmed by bioinformatics analysis, and dual-luciferase reporter assay and RNA immunoprecipitation assay. The murine xenograft models were established to perform in vivo assay. Circ_0008717 and GATA6 were highly expressed, while miR-326 was lowly expressed in BC tissues and cells. Functionally, knockdown of circ_0008717 not only suppressed breast cancer cell proliferation, angiogenesis, migration, invasion and epithelial-mesenchymal transition (EMT) in vitro, but also hindered tumor growth and EMT process in vivo. Mechanistically, Circ_0008717 directly bound to miR-326, which targeted GATA6. Rescue experiments showed that miR-326 reversed the anticancer action of circ_0008717 knockdown on BC cells. Moreover, miR-326 restoration repressed BC cell growth and metastasis, which were attenuated by GATA6 overexpression. In addition, we also observed that circ_0008717 could regulate GATA6 expression by sponging miR-326. Circ_0008717 promoted breast cancer growth and metastasis through miR-326/GATA6 axis, revealing a potential therapeutic target for breast cancer treatment.
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Affiliation(s)
- Ling Yang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, 610041, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, No. 20, Section 3, Renmin South Road, Chengdu, 610041, China
| | - Yuxin Chen
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, 610041, China. .,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, No. 20, Section 3, Renmin South Road, Chengdu, 610041, China.
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19
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Wang Y, Yang F, Peng Q, Mei K, He H, Yang Q. LncRNA SNHG1 activates glycolysis to promote hepatocellular cancer progression through miR-326/PKM2 axis. J Gene Med 2022; 24:e3440. [PMID: 35816558 DOI: 10.1002/jgm.3440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 06/11/2022] [Accepted: 07/08/2022] [Indexed: 11/06/2022] Open
Abstract
AIMS Hepatocellular cancer (HCC) is a lethal malignancy with extremely poor prognosis. Here, we attempted to investigate the role and underlying mechanism of SNHG1 in HCC progression. METHODS Combined with bioinformatics and experimental validation, we explored the clinical significance of SNHG1 in HCC. CCK8, cell colony formation assay, and subcutaneous tumorigenesis experiments of nude mice were conducted to evaluate the pro-proliferative capacity of SNHG1. Glucose consumption and lactate production were measured to explore the regulatory role of SNHG1 in glycolysis. Nuclear-cytoplasmic separation, qRT-PCR and Western blot assays, chromatin immunoprecipitation, luciferase reporter and RNA immunoprecipitation assays were performed to investigate the molecular mechanisms of SNHG1 in HCC. RESULTS SNHG1 expression was dramatically increased in HCC and positively correlated with poor prognosis. It was E2F1 that bound to SNHG1 promoter region to activate SNHG1 transcription. Furthermore, SNHG1 served as a molecular sponge for miR-326 to sequester the interaction of miR-326 and PKM2, facilitating the expression of PKM2. Activating PKM2 expression was evidenced to be one of mechanisms of SNHG1 to promote glycolysis and proliferation of HCC cells. CONCLUSION E2F1-activated SNHG1 modulates miR-326/PKM2 axis to facilitate glycolysis and proliferation of HCC cells. Targeting SNHG1 could be a promising therapeutic option for HCC.
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Affiliation(s)
- Yue Wang
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province, China
| | - Fan Yang
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province, China
| | - Qi Peng
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province, China
| | - Ke Mei
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province, China
| | - Haitao He
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province, China
| | - Qing Yang
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province, China
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20
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Zhang J, Li Y, Ren Y, Han H, Li J. Mir-326 potentiates radiosensitivity of cervical squamous cell carcinoma through downregulating SMO expression in the Hedgehog signaling pathway. Genes Genomics 2022. [PMID: 35751784 DOI: 10.1007/s13258-022-01276-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/01/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Radiotherapy resistance affects the therapeutic effect of cervical squamous cell carcinoma (CSCC). Smoothened (Smo) is an anticancer target of the Hedgehog (Hh) pathway and its mutation is related to drug resistance. OBJECTIVE To explore the roles of miR-326 and Smoothened (SMO) on radiation resistance in patients with cervical carcinoma. METHODS Expression of miR-326 and SMO in cervical cancer tissue and radioresistant cell lines were analyzed. The radiation response with the expression of miR-326 was evaluated in tissue and cells. Bioinformatics analysis and literature review were performed to explore the target of miR-326. The regulation of miR-326 to SMO mRNA was verified through the dual-luciferase reporter assay. RESULTS Patients with poor radiation response have lower miR-326 and higher SMO expression. Upregulation of miR-326 decreased SMO expression and its downstream proteins but does not affect the proliferation of CSCC cells. The upregulation of miR-326 increased radiation sensitivity of the CSCC cell through downregulating SMO and its downstream proteins in the Hedgehog (Hh) signaling pathway. CONCLUSIONS miR-326 may predict the treatment response to radiation, and upregulating miR-326 may improve the treatment response to radiation.
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21
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Li Q, Yan M, Wang C, Wang K, Bao G. CKAP2L, a crucial target of miR-326, promotes prostate cancer progression. BMC Cancer 2022; 22:666. [PMID: 35715760 PMCID: PMC9206381 DOI: 10.1186/s12885-022-09762-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 06/06/2022] [Indexed: 12/24/2022] Open
Abstract
Background The overexpression of aberrant cell cycle signaling pathway associated protein has been implicated in multiple malignancies and the identification of all-important one among is the crux of the precise targeted therapy. CKAP2L (Cytoskeleton Associated Protein 2 Like) plays a newish role in cancer progression through activation of the process of cell cycle and mitosis. In this study, we aim to delineate the prominent dysregulated expression of CKAP2L and comprehensively reveal its deregulation in prostate cancer. Method CKAP2L expression was examined in the normal and tumor tissues of prostate cancer patients with RT-QPCR and Western blot. IHC showed the different expression in normal prostate tissue, tissue of BPH, low Gleason Score and high Gleason Score prostate cancer patients. Transwell, colony formation, MTT and flow cytometry were performed to detected the changes in cellular function in vitro. The xenograft model was conducted for the changes in vivo. Dual luciferase and RIP proved the binding relation between CKAP2L and miR-326. Results In multiple datasets, CKAP2L was found upregulated and positively associated with Gleason grade and poor clinical outcomes of patients. shRNA mediated silence of CKAP2L suppressed cell proliferation, impaired monolayer formation, inhibited cell invasion. CKAP2L was confirmed to be the direct target of miR-326, which had a carcinostatic effect by binding the 3’untranslated regions (3’UTRs) of CKAP2L mRNA. The deletion of CKAP2L resulted in reduced expression of genes involved in the mitotic cell cycle such as multiple cyclin-dependent kinases and cyclins, but also several genes encoding proteins involved in chromosome segregation and spindle assembly. Conclusion Taken together, CKAP2L plays a carcinogenic role in prostate cancer by regulates the expression of cycle-associated proteins. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09762-3.
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Affiliation(s)
- Qi Li
- Tianjin Medical University, Tianjin, China
| | - Mo Yan
- Tianjin Medical University, Tianjin, China
| | - Chunhui Wang
- Departments of Urology, Affiliated Hospital of Chifeng University, Chifeng, China.,Urology Research Center, Chifeng University, Chifeng, China
| | | | - Guochang Bao
- Departments of Urology, Affiliated Hospital of Chifeng University, Chifeng, China. .,Urology Research Center, Chifeng University, Chifeng, China.
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22
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Zhang W, Cao C, Shen J, Shan S, Tong Y, Cai H, Han Z, Chai H. Long non-coding RNA LINC01270 is an onco-promotor in lung adenocarcinoma by upregulating LARP1 via sponging miR-326. Bioengineered 2022; 13:14472-14488. [PMID: 36694453 PMCID: PMC9995133 DOI: 10.1080/21655979.2022.2090183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Accumulating evidence have proved the key role of long non-coding RNA in lung adenocarcinoma (LUAD) progression. Bioinformatics analysis is used to seek the differentially expressed lncRNA LINC01270 from TCGA database. The overexpression of LINC01270 was then verified in LUAD tumor tissues and cell lines by qRT-PCR. LINC01270 knockdown resulted in impaired cell proliferative and invasive ability via CCK-8 assay, EdU assay, colony formation assay, transwell assay, while aberrant upregulation of LINC01270 led to enhanced cell growth and invasion. Moreover, LINC01270 was found inhibiting miR-326 and thereby overexpressing the abundance of LARP1 to promote LUAD development via PI3K/AKT pathway. It was also proved that LINC01270 knockdown could suppress LUAD tumor growth in vivo. All of these findings demonstrate thatLINC01270 is a tumor promotor in LUAD via enhancing LARP1 expressed by sponging miR-326 to facilitate the development of LUAD. LINC01270 play a significant role in LUAD, which could serve as biomarkers for early diagnosis and a novel targeted remedy.
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Affiliation(s)
- Weiran Zhang
- Department of Thoracic Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Cheng Cao
- Department of Thoracic Surgery, the Fourth Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jingfu Shen
- Department of Thoracic Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shaoyin Shan
- Department of Thoracic Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yuanhao Tong
- Department of Thoracic Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hongyan Cai
- Department of Gastrology, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhifeng Han
- Department of Thoracic Surgery, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Huiping Chai
- Department of Thoracic Surgery, the Fourth Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
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23
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Chen Y, Hong C, Qu J, Chen J, Qin Z. Knockdown of lncRNA PCAT6 suppresses the growth of non-small cell lung cancer cells by inhibiting macrophages M2 polarization via miR-326/KLF1 axis. Bioengineered 2022; 13:12834-12846. [PMID: 35609331 PMCID: PMC9275980 DOI: 10.1080/21655979.2022.2076388] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most common malignant tumor of lung, which seriously threatens the life of people. It has been reported that lncRNA prostate cancer-associated transcript 6 (PCAT6) could facilitate the metastasis of NSCLC cells. However, whether lncRNA PCAT6 in NSCLC cells could affect the tumor microenvironment (TME) remains unclear. In the present study, the level of PCAT6 in NSCLC cells was detected using RT-qPCR. The effects of PCAT6 knockdown on the viability and apoptosis in NSCLC cells were detected with CCK-8 and flow cytometry assay. NSCLC cell-derived exosomes were isolated with ultracentrifugation. Next, transwell assay was conducted to assess the migration and invasion of NSCLC cells. Dual-luciferase reporter assay was performed to verify the relationship among PCAT6, miR-326, and KLF1 in A549 cells. In addition, nanoparticle tracking analysis (NTA) was applied to detect the particle size of isolated exosomes. Moreover, ELISA assay was performed to detect the levels of IL-1β and IL-10 in the supernatant of macrophage. We found knockdown of PCAT6 significantly inhibited the viability, migration, and invasion of NSCLC cells. In addition, dual-luciferase reporter assay illustrated that miR-326 was the target of PCAT6 and KLF1 was the target of miR-326 in NSCLC cells. Moreover, NSCLC cells-derived exosomes could promote macrophages M2 polarization by transporting PCAT6. Meanwhile, macrophages M2 polarization was able to promote the metastasis and epithelial-mesenchymal transition (EMT) process of NSCLC cells via regulating PCAT6/miR-326/KLF1 axis. Taken together, knockdown of lncRNA PCAT6 suppressed the growth of NSCLC cells by inhibiting macrophages M2 polarization via miR-326/KLF1 axis.
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Affiliation(s)
- Yun Chen
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Chaojin Hong
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Jing Qu
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Junjun Chen
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhiquan Qin
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
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24
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Jiang B, Yang K, Tang C, Chen R, Wang C. LncRNA LINC01270 aggravates the progression of gastric cancer through modulation of miR-326/EFNA3 axis. Bioengineered 2022; 13:8994-9005. [PMID: 35345980 PMCID: PMC9161943 DOI: 10.1080/21655979.2022.2054204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Gastric cancer (GC) is lethal malignancy, which is associated with high mortality. Long noncoding RNA LINC01270 has been identified to act as a potential oncogene in several cancers. However, its role and related regulatory mechanism in GC are yet to be illustrated. The levels of lncRNA LINC01270, miR-326, and EphrinA3 (EFNA3) were assessed by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Cell counting kit-8 (CCK-8) and colony formation assays were applied for analyzing cell proliferation. Transwell assay was used for measuring cellular migration and invasion. Western blot analysis was employed for evaluating the protein levels. Luciferase reporter and RNA pull-down assays were utilized to verify the binding ability between LINC01270 (or EFNA3) and miR-326. Our findings indicated that LINC01270 expression was significantly up-regulated in GC tissues and cell lines. Additionally, LINC01270 knockdown attenuated GC progression through inhibiting cell proliferation, migration, and invasion. Functional experiments identified that lncRNA LINC01270 could positively regulate EFNA3 expression by serving as a competing endogenous RNA (ceRNA) for miR-326. Through rescue assays, inhibition of GC progression caused by LINC01270 suppression was found to be reversed by the application of miR-326 inhibitor or EFNA3 overexpression. Overall, our work demonstrated that lncRNA LINC01270 can accelerate cell proliferation, migration, and invasion via modulating miR-326/EFNA3 axis. These findings might implicate the potential role of lncRNA LINC01270 in GC treatment.
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Affiliation(s)
- Bing Jiang
- Department of Gastrointestinal Surgery, Chaohu Hospital of Anhui Medical University, Chaohu, China
| | - Kankan Yang
- Department of Gastrointestinal Surgery, Chaohu Hospital of Anhui Medical University, Chaohu, China
| | - Chao Tang
- Department of Gastrointestinal Surgery, Chaohu Hospital of Anhui Medical University, Chaohu, China
| | - Rui Chen
- Department of Gastrointestinal Surgery, Chaohu Hospital of Anhui Medical University, Chaohu, China
| | - Chao Wang
- Department of Oncology, Chaohu Hospital of Anhui Medical University, Chaohu, China
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Geng X, Zhao C, Zhang Z, Liu Y, Zhang X, Ding P. Circ_0088036 facilitates the proliferation and inflammation and inhibits the apoptosis of fibroblast-like synoviocytes through targeting miR-326/FZD4 axis in rheumatoid arthritis. Autoimmunity 2022; 55:157-167. [PMID: 35352610 DOI: 10.1080/08916934.2022.2027920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The function and pathological significance of circular RNAs (circRNAs) in autoimmune diseases, such as rheumatoid arthritis (RA), are barely known. Here, we explored the role of circ_0088036 in RA progression and its associated mechanism. METHODS The synovial lining layer tissues of RA patients and non-RA control patients were collected for clinical study in vivo, and tumour necrosis factor α (TNF-α)-induced RA-fibroblast-like synoviocytes (RA-FLSs) were used for the experiments in vitro. Cell proliferation was assessed by Cell Counting Kit 8 (CCK8) assay and flow cytometry. Cell apoptosis was analyzed by flow cytometry. Enzyme-linked immunosorbent assay (ELISA) was conducted to analyze the release of pro-inflammatory cytokines. Dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were performed to verify the target interaction between microRNA-326 (miR-326) and circ_0088036 or frizzled class receptor 4 (FZD4). RESULTS Circ_0088036 expression was elevated in the synovial lining layer tissues of RA patients and TNF-α-treated RA-FLSs. Circ_0088036 interference largely reversed TNF-α-induced proliferation and inflammation in RA-FLSs. The interaction between circ_0088036 and miR-326 was verified, and miR-326 silencing largely reversed circ_0088036 knockdown-mediated effects in TNF-α-treated RA-FLSs. MiR-326 bound to the 3' untranslated region (3'UTR) of FZD4 in RA-FLSs. FZD4 overexpression largely diminished miR-326 accumulation-mediated influences in TNF-α-treated RA-FLSs. Circ_0088036 could up-regulate FZD4 by sponging miR-326 in RA-FLSs. CONCLUSION Circ_0088036 contributed to TNF-α-induced RA progression partly by targeting miR-326/FZD4 signalling.
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Affiliation(s)
- Xueli Geng
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical College, Chengde, China
| | - Chunnan Zhao
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical College, Chengde, China
| | - Zezhi Zhang
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical College, Chengde, China
| | - Yanling Liu
- Department of Rheumatism Immunity, Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Xiuqin Zhang
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical College, Chengde, China
| | - Peijian Ding
- Department of Gastric & Intestine, Affiliated Hospital of Chengde Medical College, Chengde, China
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26
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Assidicky R, Tokat UM, Tarman IO, Saatci O, Ersan PG, Raza U, Ogul H, Riazalhosseini Y, Can T, Sahin O. Targeting HIF1-alpha/ miR-326/ITGA5 axis potentiates chemotherapy response in triple-negative breast cancer. Breast Cancer Res Treat 2022. [PMID: 35338412 DOI: 10.1007/s10549-022-06569-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/13/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer that is frequently treated with chemotherapy. However, many patients exhibit either de novo chemoresistance or ultimately develop resistance to chemotherapy, leading to significantly high mortality rates. Therefore, increasing the efficacy of chemotherapy has potential to improve patient outcomes. METHODS Here, we performed whole transcriptome sequencing (both RNA and small RNA-sequencing), coupled with network simulations and patient survival data analyses to build a novel miRNA-mRNA interaction network governing chemoresistance in TNBC. We performed cell proliferation assay, Western blotting, RNAi/miRNA mimic experiments, FN coating, 3D cultures, and ChIP assays to validate the interactions in the network, and their functional roles in chemoresistance. We developed xenograft models to test the therapeutic potential of the identified key miRNA/proteins in potentiating chemoresponse in vivo. We also analyzed several patient datasets to evaluate the clinical relevance of our findings. RESULTS We identified fibronectin (FN1) as a central chemoresistance driver gene. Overexpressing miR-326 reversed FN1-driven chemoresistance by targeting FN1 receptor, ITGA5. miR-326 was downregulated by increased hypoxia/HIF1A and ECM stiffness in chemoresistant tumors, leading to upregulation of ITGA5 and activation of the downstream FAK/Src signaling pathways. Overexpression of miR-326 or inhibition of ITGA5 overcame FN1-driven chemotherapy resistance in vitro by inhibiting FAK/Src pathway and potentiated the efficacy of chemotherapy in vivo. Importantly, lower expression of miR-326 or higher levels of predicted miR-326 target genes was significantly associated with worse overall survival in chemotherapy-treated TNBC patients. CONCLUSION FN1 is central in chemoresistance. In chemoresistant tumors, hypoxia and resulting ECM stiffness repress the expression of the tumor suppressor miRNA, miR-326. Hence, re-expression of miR-326 or inhibition of its target ITGA5 reverses FN1-driven chemoresistance making them attractive therapeutic approaches to enhance chemotherapy response in TNBCs.
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Wu H, Du J, Li C, Li H, Guo H, Li Z. Kaempferol Can Reverse the 5-Fu Resistance of Colorectal Cancer Cells by Inhibiting PKM2-Mediated Glycolysis. Int J Mol Sci 2022; 23:3544. [PMID: 35408903 PMCID: PMC8998549 DOI: 10.3390/ijms23073544] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 02/04/2023] Open
Abstract
Resistance to 5-Fluorouracil (5-Fu) chemotherapy is the main cause of treatment failure in the cure of colon cancer. Therefore, there is an urgent need to explore a safe and effective multidrug resistance reversal agent for colorectal cancer, which would be of great significance for improving clinical efficacy. The dietary flavonoid kaempferol plays a key role in the progression of colorectal cancer and 5-Fu resistance. However, the molecular mechanism of kaempferol in reversing 5-Fu resistance in human colorectal cancer cells is still unclear. We found that kaempferol could reverse the drug resistance of HCT8-R cells to 5-Fu, suggesting that kaempferol alone or in combination with 5-Fu has the potential to treat colorectal cancer. It is well known that aerobic glycolysis is related to tumor growth and chemotherapy resistance. Indeed, kaempferol treatment significantly reduced glucose uptake and lactic acid production in drug-resistant colorectal cancer cells. In terms of mechanism, kaempferol promotes the expression of microRNA-326 (miR-326) in colon cancer cells, and miR-326 could inhibit the process of glycolysis by directly targeting pyruvate kinase M2 isoform (PKM2) 3'-UTR (untranslated region) to inhibit the expression of PKM2 or indirectly block the alternative splicing factors of PKM mRNA, and then reverse the resistance of colorectal cancer cells to 5-Fu. Taken together, our data suggest that kaempferol may play an important role in overcoming resistance to 5-Fu therapy by regulating the miR-326-hnRNPA1/A2/PTBP1-PKM2 axis.
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Affiliation(s)
- Haili Wu
- College of Life Science, Shanxi University, Taiyuan 030006, China; (H.W.); (J.D.); (C.L.); (H.L.)
| | - Jin’e Du
- College of Life Science, Shanxi University, Taiyuan 030006, China; (H.W.); (J.D.); (C.L.); (H.L.)
| | - Chenglu Li
- College of Life Science, Shanxi University, Taiyuan 030006, China; (H.W.); (J.D.); (C.L.); (H.L.)
| | - Hanqing Li
- College of Life Science, Shanxi University, Taiyuan 030006, China; (H.W.); (J.D.); (C.L.); (H.L.)
| | - Huiqin Guo
- The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan 030006, China;
| | - Zhuoyu Li
- The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan 030006, China;
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Zang J, Yan M, Zhang Y, Peng W, Zuo J, Zhou H, Gao G, Li M, Chu Y, Ye Y. MiR-326 inhibits trophoblast growth, migration, and invasion by targeting PAX8 via Hippo pathway. Reprod Biol Endocrinol 2022; 20:38. [PMID: 35209928 PMCID: PMC8867866 DOI: 10.1186/s12958-022-00909-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 02/12/2022] [Indexed: 12/18/2022] Open
Abstract
Preeclampsia (PE), a pregnancy disorder that affects 5-7% of pregnant women, is among the primary causes for maternal and perinatal mortality. PE is believed to be associated with insufficient invasion of villous and extravillous trophoblasts (EVTs), which hampers uterine spiral artery remodeling and finally induces PE. But the mechanism responsible for reduction of trophoblast invasion remains unclear. In this study, placental tissues taken from healthy donors and PE patients were used to evaluate the miR-326 expression; CCK8 and colony formation assays were used to confirm the effect of miR-326 on cell proliferation; transwell assay was used to demonstrate the effect of miR-326 on cell invasion capability; western blot was used to investigate the underlying mechanism; and luciferase assay was used to detect the effect of miR-326 on YAP/TAZ-mediated transcription activity. It was revealed the miR-326 expression was higher in placentas from PE patients than from healthy donors. After transfection of miR-326 mimics, trophoblast proliferation and invasion were impaired. Using TargetScan, we speculated that PAX8 was a target of miR-326, which was later confirmed by western blot. The YAP/TAZ expression was also downregulated after transfection with miR-326. Luciferase assay demonstrated that overexpression of miR-326 suppressed YAP/TAZ-mediated transcription activity by targeting PAX8. Overexpression of PAX8 could partly rescue miR-326-induced suppression of trophoblast proliferation and invasion. Taken together, our result indicated that miR-326 suppresses trophoblast growth, invasion, and migration by means of targeting PAX8 via the Hippo pathway.
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Affiliation(s)
- Junjie Zang
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China
| | - Min Yan
- Department of Obstetrics, the Weifang Yidu Central Hospital, Weifang, China
| | - Yan Zhang
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China
| | - Wei Peng
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China
| | - Jianxin Zuo
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China
| | - Huansheng Zhou
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China
| | - Guoqiang Gao
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China
| | - Min Li
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China
| | - Yijing Chu
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China.
| | - Yuanhua Ye
- Department of Obstetrics, the Affiliated Hospital of Qingdao University, 16 Jiangsu Road, 266000, Qingdao, China.
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Zheng Y, Guo Z, Li Y. Long non-coding RNA prostate cancer-associated transcript 6 inhibited gefitinib sensitivity of non-small cell lung cancer by serving as a competing endogenous RNA of miR-326 to up-regulate interferon-alpha receptor 2. Bioengineered 2022; 13:3785-3796. [PMID: 35081872 PMCID: PMC8974150 DOI: 10.1080/21655979.2022.2031416] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The critical roles of lncRNAs in drug resistance of malignancies have been widely recognized. This investigation aims to study the function of lncRNA PCAT6 in the resistance of non-small cell lung cancer (NSCLC) to gefitinib. In our study, we demonstrated that prostate cancer-associated transcript 6 (PCAT6) was upregulated in gefitinib-resistant NSCLC. PCAT6 knockdown inhibited gefitinib resistance of NSCLC, as indicated by decreased IC50 value, proliferation, and metastasis, and increased cell apoptosis. Besides, PCAT6 could directly target miR-326 in gefitinib-resistant NSCLC cells and augment NSCLC resistance to gefitinib by serving as ceRNA of miR-326. Furthermore, interferon-alpha receptor 2 (IFNAR2) was validated as a downstream target of miR-326 and miR-326 reduced resistance to gefitinib by inhibiting IFNAR2 expression. Our investigation identified that PCAT6 enhanced gefitinib resistance of NSCLC via miR-326/IFNAR2 axis, which might offer a new therapeutic strategy against gefitinib resistance of NSCLC patients.
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Affiliation(s)
- Yu Zheng
- Department of General Medicine, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Ziyi Guo
- Intervention Centre, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Ying Li
- Department of Outpatient, The First Affiliated Hospital of Jinzhou Medical University Jinzhou, Liaoning, China
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Li X, Su S, Ye D, Yu Z, Lu W, Liu L. Hsa_circ_0020850 promotes the malignant behaviors of lung adenocarcinoma by regulating miR-326/BECN1 axis. World J Surg Oncol 2022; 20:13. [PMID: 35012553 PMCID: PMC8750879 DOI: 10.1186/s12957-021-02480-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 12/17/2021] [Indexed: 11/10/2022] Open
Abstract
Background Circular RNAs (circRNAs) are a novel type of endogenous RNAs and play vital roles in lung adenocarcinoma. However, the function and underlying mechanism of circ_0020850 in lung adenocarcinoma remain unknown. Methods The levels of circ_0020850, microRNA-326 (miR-326), and Beclin1 (BECN1) were analyzed by real-time quantitative polymerase chain reaction and western blot analyses. The migration and invasion were determined by wound healing and transwell assays, respectively. Colony formation assay was used to assess cell proliferation ability. The angiogenic ability was analyzed by Matrigel angiogenesis assay. The apoptosis rate was calculated by flow cytometry assay. Dual-luciferase reporter, RNA immunoprecipitation (RIP), and RNA pull-down assays were conducted to confirm the interaction relationship among circ_0020850, miR-326, and BECN1. A xenograft mice model was established to assess the role of circ_0020850 in vivo. Results We found that circ_0020850 was obviously overexpressed in lung adenocarcinoma tissues and cells. Knockdown of circ_0020850 inhibited migration, invasion, proliferation, and angiogenesis but induced apoptosis in lung adenocarcinoma cells in vitro, as well as curbed tumor growth in vivo. MiR-326 was a target of circ_0020850, and knockdown of miR-326 abolished the suppression effect of circ_0020850 on the malignant behaviors of lung adenocarcinoma cells. Additionally, miR-326 could negatively regulate BECN1 expression, thereby regulating lung adenocarcinoma cell phenotypes. Importantly, circ_0020850 could directly bind to miR-326 and thus relieve miR-326-mediated inhibition on BECN1. Conclusion Circ_0020850 promoted the malignant development of lung adenocarcinoma by regulating miR-326/BECN1 axis, indicating that circ_0020850 might serve as a promising target for the diagnosis and treatment of lung adenocarcinoma patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12957-021-02480-3.
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Affiliation(s)
- Xiaoju Li
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Shengtian Su
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Dan Ye
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Zhigao Yu
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Wenjing Lu
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China
| | - Liang Liu
- Department of Oncology, Xiantao First People's Hospital of Yangtze University, No. 29, Middle Section of Mianzhou Avenue, Xiantao, 433000, Hubei Province, People's Republic of China.
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Zhang H, Wei N, Zhang W, Shen L, Ding R, Li Q, Li S, Du Y. [Retracted] lncRNA SNHG3 promotes breast cancer progression by acting as a miR‑326 sponge. Oncol Rep 2022; 47:44. [PMID: 34981823 PMCID: PMC8771194 DOI: 10.3892/or.2022.8255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 05/15/2020] [Indexed: 11/29/2022] Open
Affiliation(s)
- Haipeng Zhang
- Department of Gynecology, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Na Wei
- Department of First Operating Room, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Wei Zhang
- Department of Cosmetology Plastic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Lishennan Shen
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Rongbo Ding
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Qian Li
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Simin Li
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Ye Du
- Department of Breast Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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Mu W, Guo L, Liu Y, Yang H, Ning S, Lv G. Long Noncoding RNA SNHG1 Regulates LMNB2 Expression by Sponging miR-326 and Promotes Cancer Growth in Hepatocellular Carcinoma. Front Oncol 2021; 11:784067. [PMID: 34917510 PMCID: PMC8670182 DOI: 10.3389/fonc.2021.784067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/09/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE The purpose of the study is to explore the potential competing endogenous RNA (ceRNA) network and investigate the molecular mechanism of long noncoding RNA (lncRNA) small nucleolar RNA host gene 1 (SNHG1) in hepatocellular carcinoma (HCC) development. METHODS By analyzing the data of HCC in The Cancer Genome Atlas (TCGA) database, we included differentially expressed lncRNA and microRNA (miRNA) profiles and constructed ceRNA networks related to the prognosis of HCC patients. qRT-PCR, Western blotting, 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), transwell assay, and the nude mouse model were employed to test the effects of SNHG1 and LMNB2 on tumor proliferation and growth in vitro and in vivo. RESULTS In the study, we identified 115 messenger RNAs (mRNAs), 12 lncRNAs, and 37 miRNAs by intersecting differentially expressed genes (DEGs) in TCGA and StarBase databases. Then, SNHG1-miR-326-LMNB2 pathway came into notice after further survival analysis and hub gene screening. Our results showed that SNHG1 expression was upregulated significantly in HCC tissues and cell lines. Downregulation of both LMNB2, the target of miR-326 in HCC, and SNHG1 inhibited tumor proliferation and growth in vitro and in vivo. Furthermore, SNHG1 could regulate LMNB2 expression through binding to miR-326 in HCC cell lines. CONCLUSION SNHG1 is a promising prognostic factor in HCC, and the SNHG1-miR-326-LMNB2 axis may be a potential therapeutic target for HCC.
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Affiliation(s)
- Wentao Mu
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, China
- Department of Hepatobiliary Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Lingyu Guo
- Department of Urology, Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an, China
| | - Yang Liu
- Department of Hepatobiliary Surgery, Taian City Central Hospital of Shandong Province, Tai'an, China
| | - Hui Yang
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Shanglei Ning
- Department of Hepatobiliary Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Guoyue Lv
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, China
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Mao Q, Zou H. Circular RNA circ_0032962 promotes trophoblast cell progression as ceRNA to target PBX3 via sponging miR-326 in preeclampsia. Reprod Biol 2021; 21:100571. [PMID: 34742151 DOI: 10.1016/j.repbio.2021.100571] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 11/19/2022]
Abstract
Preeclampsia (PE) is the leading cause of maternal deaths in primipara. It is mainly characterized by defect migration and invasion of trophoblast cells. Circular RNAs (circRNAs) have been widely reported to be associated with PE progression. This study is designed to explore the role and mechanism of circ_0032962 on trophoblast cell behavior. Circ_0032962, microRNA-326 (miR-326), and Pre-B-cell leukemia homeobox 3 (PBX3) levels were measured by real-time quantitative polymerase chain reaction (RT-qPCR). Cell proliferation ability, migration, and invasion were measured by Cell Counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EdU), Colony formation, wound healing, and transwell assays. Protein levels of E-cadherin, Vimentin, N-cadherin, and PBX3 were examined by western blot assay. The binding relationship between miR-326 and circ_0032962 or PBX3 was predicted by circular RNA Interactome or Starbase and then verified by a dual-luciferase reporter assay. Circ_0032962 and PBX3 levels were declined in placenta tissues from preeclampsia patients, and miR-326 was elevated. Apart from that, circ_0032962 knockdown could suppress cell proliferation ability, migration, invasion, and epithelial-mesenchymal transition (EMT) in trophoblast cells. Mechanically, circ_0032962 could affect PBX3 expression through sponging miR-326. Circ_0032962 could contribute to trophoblast cell growth ability and metastasis partly by regulating the miR-326/PBX3 axis, providing a novel insight into the pathogenesis and treatment of PE.
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Affiliation(s)
- Qinghua Mao
- Department of Obstetrics, Jingmen First People's Hospital, Jingmen City, 448000, Hubei Province, China
| | - Hong Zou
- Department of Gynecology, Jingmen First People's Hospital, Jingmen City, 448000, Hubei Province, China.
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Wei J, Meng G, Wu J, Wang Y, Zhang Q, Dong T, Bao J, Wang C, Zhang J. MicroRNA-326 impairs chemotherapy resistance in non small cell lung cancer by suppressing histone deacetylase SIRT1-mediated HIF1α and elevating VEGFA. Bioengineered 2021; 13:5685-5699. [PMID: 34696659 PMCID: PMC8973918 DOI: 10.1080/21655979.2021.1993718] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Compelling evidence has implicated the role of microRNAs (miRs or miRNAs) in lung cancer. Sirtuin-1 (SIRT1) is key contributor to the progression of non small cell lung cancer (NSCLC). This study was intended to investigate whether miR-326 affected NSCLC associated with SIRT1. miR-326 and SIRT1 expression in H460 cells and chemoresistant cells H460-R was measured by RT-qPCR. Dual luciferase reporter gene assay and RIP assay were used to identify and validate the relationship between miR-326 and SIRT1. Using gain- and loss-of-function approaches, we evaluated their effects on the chemoresistance of NSCLC cells. ChIP assay was used to detect binding of SIRT1 to the promoter of HIF1α gene, and the binding H3K9Ac to HIF1α, binding of H3K9Ac and HIF1α after silencing SIRT1, and binding HIF1α to VEGFA promoter. In vivo experiments were performed to validate the in vitro findings. MiR-326 expression was decreased while SIRT1 expression was increased in NSCLC cells. SIRT1 was a target of miR-326. MiR-326 inhibited the proliferation of chemotherapy-resistant NSCLC cells and promoted their apoptosis by suppressing SIRT1. In addition, SIRT1 promoted chemoresistance of NSCLC cell by elevating VEGFA expression. Through this mechanism, miR-326 reduced the chemoresistance, which was validated in vivo. Taken together, miR-326 represses SIRT1 through impeding HIF1α expression, thus hindering chemotherapy resistance in lung cancer. These findings provide an exquisite therapeutic target for NSCLC.
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Affiliation(s)
- Jinying Wei
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun 130021, P. R. China.,Department of General Practice, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Guangping Meng
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun 130021, P. R. China
| | - Jing Wu
- Department of General Practice, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Ying Wang
- Department of Clinical Laboratory, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Qiang Zhang
- Department of General Practice, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Ting Dong
- Department of General Practice, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Jin Bao
- Department of Health Examination Center, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Chunyan Wang
- Department of General Practice, The First Hospital of Jilin University, Changchun 130021, P. R. China
| | - Jie Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun 130021, P. R. China
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Tan Q, Liu C, Shen Y, Huang T. Circular RNA circ_0000517 Facilitates The Growth and Metastasis of Non-Small Cell Lung Cancer by Sponging miR-326/miR-330-5p. Cell J 2021; 23:552-561. [PMID: 34837683 PMCID: PMC8588814 DOI: 10.22074/cellj.2021.7913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 06/08/2021] [Indexed: 11/04/2022]
Abstract
OBJECTIVE There is growing evidence showing that circular RNAs (circRNAs) are crucial regulators in modulating the biological behavior of tumors. This work is aimed to probe the role of circ_0000517 in non-small cell lung cancer (NSCLC) and to elucidate its mechanism of action. MATERIALS AND METHODS In this experimental study, the differentially expressed circRNAs in NSCLC were screened using the GEO database (GSE158695). Circ_0000517, miR-326, miR-330-5p, and MMP2 expression levels were determined by quantitative real-time polymerase chain reaction (qRT-PCR) analysis and Western blot. The proliferation, apoptosis, migration, and invasion of NSCLC cells were detected by CCK-8, flow cytometry, and transwell assays. RNA immunoprecipitation (RIP), RNA pull-down, and dual-luciferase reporter gene assays were performed to clarify the association between the circ_0000517 and miR-326/miR-330-5p. RESULTS Circ_0000517 was shown to be up-regulated in NSCLC tissues and cell lines. The up-regulation of circ_0000517 is closely associated with advanced clinical stage of cancer, lymph node metastasis, and poor prognosis in NSCLC patients. Circ_0000517 knockdown impeded the proliferation, migration, and invasion of NSCLC cells and enhanced their apoptosis. Mechanistically, circ_0000517 was demonstrated to up-regulate MMP2 expression via decoying miR-326 and miR-330-5p to facilitate the malignant biological behaviors of NSCLC cells. CONCLUSION This work reveals that circ_0000517 is implicated in NSCLC cell growth and metastasis through the modulation of miR-326/miR-330-5p/MMP2, providing novel insights into the role of circRNAs in NSCLC progression.
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Affiliation(s)
| | | | | | - Tao Huang
- Department of LaboratoryHainan People’s HospitalHaikouHainanChina
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Xu ML, Liu TC, Dong FX, Meng LX, Ling AX, Liu S. Exosomal lncRNA LINC01711 facilitates metastasis of esophageal squamous cell carcinoma via the miR-326/FSCN1 axis. Aging (Albany NY) 2021; 13:19776-19788. [PMID: 34370713 PMCID: PMC8386530 DOI: 10.18632/aging.203389] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/18/2021] [Indexed: 01/11/2023]
Abstract
Esophageal cancer is a malignant tumor with a five-year survival rate of less than 20%. Early diagnosis and exploration of esophageal cancer pathogenesis are of great significance for the treatment and prognosis of esophageal cancer. Long non-coding RNA (lncRNA) plays a vital role in the occurrence and development of different types of tumors. However, the role of exosome LncRNA in esophageal squamous cell carcinoma (ESCC) is rarely reported. In this study, we detected high expression of lncRNA LINC01711 in ESCC tissues and was associated with poor prognosis. Silencing LINC01711 can inhibit the proliferation, migration, invasion, and growth of ESCC cell lines, and induce apoptosis. Linc01711 was identified as a competitive endogenous RNA that suppressed miR-326, and up-regulated the expression of fascin actin-bundling protein 1 (FSCN1). Besides, in vivo experiments showed that the administration of exosome-derived LINC01711 (LINC01711-Exo) promoted the growth of tumors in nude mice. In general, exosomal LINC01711 promoted the proliferation, migration, and invasion of esophageal cancer cells by up-regulating FSCN1 and down-regulating miR-326, thus improved the occurrence and development of ESCC.
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Affiliation(s)
- Mei-Ling Xu
- Department of Oncology, Rizhao People's Hospital, Rizhao, Shandong Province, China
| | - Tian-Cheng Liu
- First Department of Oncology, People's Hospital of Juxian, Rizhao, Shandong Province, China
| | - Feng-Xiang Dong
- First Department of Oncology, People's Hospital of Juxian, Rizhao, Shandong Province, China
| | - Ling-Xin Meng
- Department of Oncology, Rizhao People's Hospital, Rizhao, Shandong Province, China
| | - Ai-Xia Ling
- Department of Physical-Chemistry, College of Pharmaceutical Sciences, Jining Medical College, Jinan, Shandong Province, China
| | - Shan Liu
- Department of Oncology, Rizhao People's Hospital, Rizhao, Shandong Province, China
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Retraction: Functional analyses of micoRNA-326 in breast cancer development. Biosci Rep 2021; 41:BSR-2019-0787_RET. [PMID: 34319392 DOI: 10.1042/BSR-2019-0787_RET] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Luo N, Liu S, Li X, Hu Y, Zhang K. Circular RNA circHIPK3 promotes breast cancer progression via sponging MiR-326. Cell Cycle 2021; 20:1320-1333. [PMID: 34152928 PMCID: PMC8331001 DOI: 10.1080/15384101.2021.1939476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/13/2021] [Accepted: 06/02/2021] [Indexed: 01/22/2023] Open
Abstract
Background: This study investigated the potential molecular mechanism of circular RNA HIPK3 (circHIPK3) in breast cancer (BCa). Methods: BCa cells were transfected with miR-326 mimic, miR-326 inhibitor, circHIPK3, sicircHIPK3. The expressions of circHIPK3 and miR-326 in BCa tissues and BCa cell lines were determined by RT-qPCR. Cell viability, colony formation, migration, invasion, and apoptosis of the cells were detected by CCK-8 and colony formation, wound-healing, transwell and flow cytometric assays, respectively. The relationship between circHIPK3 and miR-326 was analyzed and confirmed by circInteractome, dual-luciferase reporter, RT-qPCR, Pearson's correlation assays. Western blot and RT-qPCR were performed to determine the expressions of apoptosis-related molecules (Bcl-2, Bax, and cleaved Caspase-3) and EMT-related molecules (E-cadherin, N-cadherin, and Vimentin) in the BCa cells and tumor tissues. The tumor growth in mice was examined in a xenograft tumor model in which Ki-67 expression was determined by immunohistochemistry (IHC). Results: In BCa, the expression of circHIPK3 was up-regulated and that of miR-326 was down-regulated. CircHIPK3 knockdown inhibited the cell proliferation, invasion, and migration. MiR-326 was the direct target of circHIPK3, and was inversely correlated with circHIPK3 expression. CircHIPK3 overexpression promoted proliferation, migration, invasion, apoptosis resistance, and tumor growth and up-regulated Ki-67 expression, at the same time, the expressions of Bcl-2, N-cadherin, Vimentin were up-regulated, and those of Bax, cleaved Caspase-3 and E-cadherin were inhibited. These above expressions were partially reversed by miR-326 overexpression. Conclusion: CircHIPK3 sponges miR-326 to promote BCa growth and metastasis. The current findings provide a novel therapeutic target for treating BCa.
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Affiliation(s)
- Na Luo
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Clinical Research Center for Breast Cancer Control and Prevention in Hunan Province, Changsha, Hunan, China
| | - Shiqin Liu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Clinical Research Center for Breast Cancer Control and Prevention in Hunan Province, Changsha, Hunan, China
| | - Xin Li
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Clinical Research Center for Breast Cancer Control and Prevention in Hunan Province, Changsha, Hunan, China
| | - Yu Hu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Clinical Research Center for Breast Cancer Control and Prevention in Hunan Province, Changsha, Hunan, China
| | - Kejing Zhang
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Clinical Research Center for Breast Cancer Control and Prevention in Hunan Province, Changsha, Hunan, China
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Liu B, Jiang HY, Yuan T, Luo J, Zhou WD, Jiang QQ, Wu D. Enzalutamide-Induced Upregulation of PCAT6 Promotes Prostate Cancer Neuroendocrine Differentiation by Regulating miR-326/HNRNPA2B1 Axis. Front Oncol 2021; 11:650054. [PMID: 34277403 PMCID: PMC8278330 DOI: 10.3389/fonc.2021.650054] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/28/2021] [Indexed: 11/13/2022] Open
Abstract
Our previous studies have demonstrated that Enzalutamide-induced upregulation of long non-coding RNA p21 (lncRNA-p21) facilitates prostate cancer (PCa) neuroendocrine differentiation (NED). Given the important role of lncRNAs in PCa pathogenesis, and given that lots of lncRNAs are dys-regulated in neuroendocrine PCa (NEPC) patients, we next explored the biological function and underlying mechanism of lncRNA-PCAT6 (PCAT6) in mediating Enzalutamide-induced NED. The level of PCAT6 in Enzalutamide-treated PCa cells and NEPC samples were assessed using quantitative RT-PCR (qPCR). The effect of PCAT6 on PCa cell proliferation, invasion, and NED was evaluated through CCK-8, transwell, qPCR, western blot analysis, Xenograft mouse model, and in vivo lung metastasis model. We found that PCAT6 was highly expressed in NE-like cells (PC3, DU145, and NCI-H660) compared with androgen-sensitive LNCaP cells. PCAT6 was also highly expressed in NEPC tissues. Enzalutamide treatment resulted in a significant increase of PCAT6 level in a dose- and time-dependent fashion. Functionally, PCAT6 overexpression promoted NED of C4-2 cells, as evidenced by an increased expression of NE markers (NSE, ChgA, and SYP), whereas PCAT6 knockdown in NCI-H661 cells repressed NED. Furthermore, PCAT6 overexpression promoted PCa cell proliferation and invasion in vitro and in vivo. Mechanistically, PCAT6 functioned as competing endogenous (ce) RNA via absorbing miR-326, thus resulting in a de-suppression of Hnrnpa2b1 target gene. The current results demonstrate that PCAT6 acted as a tumor activator in PCa progression by sponging miR-326 and increasing Hnrnpa2b1 expression and that the PCAT6/miR-326/Hnrnpa2b1 signaling might be a new therapeutic target for PCa.
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Affiliation(s)
- Bo Liu
- Department of Urology, Tongji Hospital, Tongji University of Medicine, Shanghai, China
| | - Hui-Yang Jiang
- Department of Urology, Tongji Hospital, Tongji University of Medicine, Shanghai, China
| | - Tao Yuan
- Department of Urology, Tongji Hospital, Tongji University of Medicine, Shanghai, China
| | - Jie Luo
- Department of Urology, Tongji Hospital, Tongji University of Medicine, Shanghai, China
| | - Wei-Dong Zhou
- Department of Urology, Tongji Hospital, Tongji University of Medicine, Shanghai, China
| | - Qi-Quan Jiang
- Department of Urology, Tongji Hospital, Tongji University of Medicine, Shanghai, China
| | - Denglong Wu
- Department of Urology, Tongji Hospital, Tongji University of Medicine, Shanghai, China
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Abstract
MicroRNA (miRNA), a non-coding single-stranded RNA molecule with 20–23 nucleotides encoded by endogenous genes, plays an essential role in maintaining normal cell function and regulating cell proliferation, differentiation, apoptosis, autophagy, and cell metabolism. The imbalance between miRNA and genes can cause a series of diseases, including malignancies. miRNA-326 (miR-326) is extensively known for its core regulation of various biological processes. This review presents an overview of the highlights of miR-326 in female-related diseases. To understand the impact of miR-326 on female disorders, we search all published studies about miR-326 having a high incidence in female conditions, including cervical cancer, endometrial cancer, breast cancer, intrauterine adhesion, and multiple autoimmune diseases. We aim to learn about the mutual regulation mechanism between miR-326 and related genes and signaling pathways, as well as to elaborate on the value of miR-326 as a potential biomarker and therapeutic target of female diseases. Our results provide reliable evidence and new strategies for treating female tumors and autoimmune diseases.
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Affiliation(s)
- Li-na Lin
- Department of Histology and Embryology, School of Pre-clinical Medicine, Guangxi Medical University
| | - Qing-mei Zhang
- Department of Histology and Embryology, School of Pre-clinical Medicine, Guangxi Medical University
- Key Laboratory Research of Preclinical Medicine of Guangxi Colleges and Universities, Guangxi Medical University
| | - Ying-ying Ge
- Department of Histology and Embryology, School of Pre-clinical Medicine, Guangxi Medical University
- Key Laboratory Research of Preclinical Medicine of Guangxi Colleges and Universities, Guangxi Medical University
| | - Bin Luo
- Department of Histology and Embryology, School of Pre-clinical Medicine, Guangxi Medical University
- Key Laboratory Research of Preclinical Medicine of Guangxi Colleges and Universities, Guangxi Medical University
| | - Xiao-xun Xie
- Department of Histology and Embryology, School of Pre-clinical Medicine, Guangxi Medical University
- Key Laboratory Research of Preclinical Medicine of Guangxi Colleges and Universities, Guangxi Medical University
- Key Laboratory of Early Prevention and Treatment of Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education
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Qi L, Sun B, Yang B, Lu S. circHIPK3 (hsa_circ_0000284) Promotes Proliferation, Migration and Invasion of Breast Cancer Cells via miR-326. Onco Targets Ther 2021; 14:3671-3685. [PMID: 34135597 PMCID: PMC8200520 DOI: 10.2147/ott.s299190] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/18/2021] [Indexed: 12/31/2022] Open
Abstract
Purpose circHIPK3 has carcinogenic or anti-tumor effects on different cancers. However, there is no relevant research showing whether circHIPK3 was involved in breast cancer (BCa). In this research, the aim was to analyze the function and possible molecular mechanism of circHIPK3 in BCa. Methods The expression of circHIPK3 in human BCa tissues and cells was detected by real-time quantitative PCR (RT-qPCR). CircInteractome and dual-luciferase assays were performed to detect circRNA-miRNA targeting relationship. Ribonuclease R treatment, RT-qPCR, Western blot and immunohistochemistry were performed to determine the stability, expressions, abundance of target genes. Loss-of-function or gain-of-function experiments were used to analyze the effects of circHIPK3 and miR-326 on BCa in vivo and in vitro. In vitro, MCF7 and BT20 cells were transfected with circHIPK3 or sicircHIPK3 or miR-326 mimic; in vivo, female BALB/c mice were subcutaneously injected with MCF7 cells (transfected with CirchipK3 or miR-326 mimic) to establish xenograft models. Results The circular structure of circHIPK3 was abundantly expressed in the cytoplasm and was up-regulated in BCa. Silenced circHIPK3 suppressed malignant phenotype of BCa cells. MiR-326 interacted with circHIPK3 and the two were negatively correlated. Overexpressed circHIPK3 promoted cell viability, proliferation, migration and invasion, but inhibited apoptosis. Moreover, overexpressed circHIPK3 promoted the expressions of EMT-related genes and antiapoptotic genes, but inhibited proapoptotic gene expressions. Overexpressed circHIPK3 promoted tumor growth and Ki-67 levels, inhibited apoptosis in vivo. The above mentioned effects of circHIPK3 were reversed by miR-326 in vitro or in vivo. Conclusion circHIPK3 promoted proliferation, migration and invasion of BCa cells through regulating miR-326.
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Affiliation(s)
- Liqiang Qi
- Department of Breast Surgical Oncology, Cancer Institute and Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Bo Sun
- The 2nd Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Beibei Yang
- The 2nd Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Su Lu
- The 2nd Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
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Zhao N, Wang Z, Cui X, Wang S, Fan C, Li Y, Shan Z, Teng W. In Vivo Inhibition of MicroRNA-326 in a NOD.H-2 h4 Mouse Model of Autoimmune Thyroiditis. Front Immunol 2021; 12:620916. [PMID: 34140947 PMCID: PMC8205278 DOI: 10.3389/fimmu.2021.620916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 05/14/2021] [Indexed: 01/06/2023] Open
Abstract
Background Previous studies reported that various miRNAs participate in autoimmune diseases, but the potential regulatory mechanism of miRNAs in autoimmune thyroiditis (AIT) needs further exploration. Objective This study aimed to further verify that miR-326 contributes to AIT by regulating Th17/Treg balance through Ets-1 using lentiviral gene delivery through tail vein and thyroid injection in NOD.H-2h4 mice. Materials and Methods Five-week-old NOD.H-2h4 mice were divided randomly into tail vein and thyroid injection groups, and each received either mmu-miR-326 sponge (LV-sponge) or lentiviral vector control. Mice were divided for tail vein injection: the therapeutic LV-ctrl, therapeutic LV-sponge, prophylactic LV-ctrl, and prophylactic LV-sponge groups. The control group was fed high-iodine water without vein injection. The thyroid infiltration of lymphocytes and serum TgAb value were investigated by thyroid hematoxylin and eosin (HE) staining and ELISA, respectively. Ets-1 and lymphocyte counts were measured by RT-PCR, western blotting, and flow cytometry. The thyroid CD4+IL-17a+ cells and CD4+Ets-1+ cells were detected by immunofluorescence, and the serum cytokines were tested by ELISA. Results In the tail vein injection groups, the thyroid inflammatory score and serum TgAb titer were significantly lower in the LV-sponge groups than in the control and LV-ctrl groups while Ets-1 protein expression in mouse spleens was increased in the LV-sponge groups. Moreover, Th17/Treg ratio declined in the LV-sponge group and decreased significantly in the prophylactic LV-sponge group (P = 0.036) tested by flow cytometry. Immunofluorescence showed that, in LV-sponge groups, CD4+IL-17a+ cells were decreased significantly (P = 0.001), while CD4+Ets-1+ cells were increased significantly in the LV-sponge group (P = 0.029). The serum IL-17/IL-10 was decreased significantly in the LV-sponge group (P < 0.05). In the thyroid injection groups, the thyroid inflammatory score and serum TgAb titer in the LV-sponge group decreased significantly compared with those in the LV-ctrl group (P < 0.05). In addition, in LV-sponge groups, CD4+IL-17a+ cells were decreased, while CD4+Ets-1+ cells were increased significantly in the inhibition group evaluated by immunofluorescence. Moreover, tail vein injection of LV-sponge resulted in much lower TgAb levels in thyroiditis compared with thyroid injection. Conclusion MiR-326 targeted therapy may be a promising approach for AIT. In addition, tail vein injection may achieve a better intervention effect than thyroid injection.
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Affiliation(s)
- Na Zhao
- Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Zhenzhen Wang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xuejiao Cui
- Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Shuo Wang
- Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Chenling Fan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yushu Li
- Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Zhongyan Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Weiping Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang, China
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Zhang J, Zhang Z. Mechanisms of circular RNA circ_0066147 on pancreatic cancer progression. Open Life Sci 2021; 16:495-510. [PMID: 34056113 PMCID: PMC8142380 DOI: 10.1515/biol-2021-0047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 03/09/2021] [Accepted: 03/11/2021] [Indexed: 12/09/2022] Open
Abstract
Background The purpose of the study was to explore the precise parts of circ_0066147 (circular RNA [circRNA] scm-like with four mbt domains 1, circSFMBT1) in pancreatic cancer (PC) progression. Methods Ribonuclease R assay was used to confirm the stability of circ_0066147. circ_0066147, miR-326 and E2F transcription factor 2 (E2F2) expression levels was detected by quantitative reverse-transcription polymerase chain reaction or Western blot. Cell proliferation, apoptosis, migration and invasion abilities were assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide, flow cytometry, wound-healing and transwell assays, respectively. Targeted relationships among circ_0066147, miR-326 and E2F2 were verified by the dual-luciferase reporter or RNA pull-down assay. Results circ_0066147 expression was upregulated in PC tissues and cells. circ_0066147 knockdown inhibited PC cell proliferation, migration, invasion and enhanced apoptosis in vitro, as well as weakened tumor growth in vivo. Mechanistically, circ_0066147 directly targeted miR-326 and circ_0066147 modulated E2F2 expression by miR-326. miR-326 mediated the regulation of circ_0066147 in PC cell behaviors in vitro. Furthermore, E2F2 was a functional target of miR-326 in modulating PC cell behaviors in vitro. Conclusion circ_0066147 regulated PC malignant progression in part depending on the miR-326/E2F2 axis, illuminating circ_0066147 was a potential prognostic marker and therapeutic target for PC management.
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Affiliation(s)
- Jie Zhang
- Second Department of Tumor Intervention, The Second People’s Hospital of Wuhu, No. 259 Jiuhua Middle Road, Jinghu District 241000, Wuhu, Anhui, China
| | - Zhang Zhang
- Second Department of Tumor Intervention, The Second People’s Hospital of Wuhu, No. 259 Jiuhua Middle Road, Jinghu District 241000, Wuhu, Anhui, China
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Norouzi M, Mesbah-Namin SA, Deyhim MR. Analysis of changes in the expression pattern of miR-326 and miR-145 during storage of platelet concentrate in blood bank condition and its relationship with some markers of platelet quality. J Thromb Thrombolysis 2021; 52:1036-1042. [PMID: 33977423 DOI: 10.1007/s11239-021-02467-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/26/2021] [Indexed: 11/29/2022]
Abstract
Platelet concentrates (PC) are affected by biochemical, morphological and functional changes during storage that are named platelet storage lesion (PSL) can decrease the survival and quality of platelets. The potential role and importance of the microRNAs in diagnosis of this process could be remarkable. The aim of this study was to determine miR-145 and miR-326 associated with apoptosis during PC storage. Ten PC prepared by platelet-rich plasma method were selected by simple random sampling in Iranian Blood Transfusion Organization. The expression pattern of miR-326 and miR-145 during PC storage for 7 days was determined by quantitative Real-time RT-PCR, and then the relationship between expression levels of both microRNAs and some PC quality markers was investigated. Glucose concentration, cell viability, platelet count and aggregation during storage showed a significant decrease compared to day zero (P < 0.05). Reduction of these variables showed a direct correlation with a significant decreasing trend in expression level of miR-145 (r = 0.94, 0.98, 0.96 and r = 0.99, P = 0.01). Lactate dehydrogenase activity showed a significant increase during platelet storage compared to day zero (P < 0.05), which was directly correlated with increased expression of miR-326 (r = 0.97, P = 0.01). Changes in the expression pattern of miR-326 and miR-145 along with biochemical markers, all indicate a decrease in platelet quality during 7 days of storage. Due to the significant correlation between the expression changes of miR-326 and miR-145 with PC quality markers, it seems both of these microRNAs can be considered as remarkable markers for early diagnosis of the PC quality during storage.
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Affiliation(s)
- Mozhgan Norouzi
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran
| | - Seyed Alireza Mesbah-Namin
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, P.O. Box: 14115-111, Tehran, Iran.
| | - Mohammad Reza Deyhim
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.
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Gu R, Liu R, Wang L, Tang M, Li SR, Hu X. LncRNA RPPH1 attenuates Aβ 25-35-induced endoplasmic reticulum stress and apoptosis in SH-SY5Y cells via miR-326/PKM2. Int J Neurosci 2021; 131:425-432. [PMID: 32336203 DOI: 10.1080/00207454.2020.1746307] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/11/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND The durative endoplasmic reticulum stress (ERS) and subsequent apoptosis contributes to the development and progression of Alzheimer's disease (AD). MiR-326 can reduce pyruvate kinase M2 (PKM2) expression, leading to ERS. Whereas, lncRNA RPPH1 is able to increase dendritic spine density and protect hippocampal pyramidal neurons through targeting miR-326. Our study aims to investigate the regulation of lncRNA RPPH1 and miR-326/PKM2 on ERS and related apoptosis in AD. METHODS SH-SY5Y cells treated with Aβ25-35 were selected as an in vitro AD model. RPPH1 and miR-326 overexpression and silencing cells were established by transforming vectors. The expression of RPPH1 and miR-326 were detected by qRT-PCR. MTT, flow cytometric, intracellular calcium assay and Western blot were used to test the functions of RPPH1 and miR-326 in SH-SY5Y cell proliferation, apoptosis and ERS. Dual-luciferase assay was used to detect the interaction among RPPH1, miR-326 and PKM2. RESULTS RPPH1 overexpression enhanced the viability of SH-SY5Y cells, and attenuated the apoptosis of of SH-SY5Y cells. Moreover, RPPH1 overexpression down-regulated ER stress related proteins such as GRP78, CHOP and cleaved caspase-12. Mechanistically, RPPH1 directly targeted miR-326, thereby counteracting its inhibitory effect on PKM2 expression, contributing to attenuation of apoptosis and ERS induced by Aβ25-35. CONCLUSION Aβ25-35-induced ERS and apoptosis in SH-SY5Y cells can be attenuated by lncRNA RPPH1 through regulating miR-326/PKM2 axis. This study provided therapeutic options for AD patients.
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Affiliation(s)
- Ran Gu
- Department of Neurology, Guizhou Provincial People's Hospital, Guiyang, P.R. China
| | - Rui Liu
- Department of Neurology, Guizhou Provincial People's Hospital, Guiyang, P.R. China
| | - Lu Wang
- Department of Neurology, Guizhou Provincial People's Hospital, Guiyang, P.R. China
| | - Man Tang
- Department of Neurology, Guizhou Provincial People's Hospital, Guiyang, P.R. China
| | - Shi-Rong Li
- Department of Neurology, Guizhou Provincial People's Hospital, Guiyang, P.R. China
| | - Xiao Hu
- Department of Neurology, Guizhou Provincial People's Hospital, Guiyang, P.R. China
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Zhou G, Duan Y, Lu C, Wang W. Knockdown of circ-UQCRC2 ameliorated lipopolysaccharide-induced injury in MRC-5 cells by the miR-326/PDCD4/NF-κB pathway. Int Immunopharmacol 2021; 97:107633. [PMID: 33895481 DOI: 10.1016/j.intimp.2021.107633] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/24/2021] [Accepted: 03/31/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Circular RNAs (circRNAs) have been shown as important modulators in the pathogenesis of pediatric pneumonia. In this paper, we focused on the molecular basis of circRNA ubiquinol-cytochrome c reductase core protein 2 (circ-UQCRC2, circ_0038467) in lipopolysaccharide (LPS)-induced cell injury. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was used to gauge the levels of circ-UQCRC2, microRNA (miR)-326 and programmed cell death 4 (PDCD4) mRNA. PDCD4 protein expression and the activation of the NF-κB signaling pathway were evaluated by western blot. Ribonuclease R (RNase R) assay was performed to assess the stability of circ-UQCRC2. Cell viability and apoptosis were detected by the Cell Counting Kit-8 (CCK-8) and flow cytometry assays, respectively. The levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and IL-6 were measured by the enzyme-linked immunosorbent assay (ELISA). Targeted relationship between miR-326 and circ-UQCRC2 or PDCD4 was confirmed by dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. RESULTS Our data showed the up-regulation of circ-UQCRC2 level in pneumonia serum and LPS-treated MRC-5 cells. The silencing of circ-UQCRC2 attenuated LPS-induced MRC-5 cell injury. Mechanistically, circ-UQCRC2 directly targeted miR-326, and circ-UQCRC2 regulated PDCD4 expression through miR-326. MiR-326 was a downstream effector of circ-UQCRC2 function, and PDCD4 was a functional target of miR-326 in regulating LPS-induced MRC-5 cell injury. Additionally, circ-UQCRC2 knockdown inactivated the NF-κB signaling pathway by regulating the miR-326/PDCD4 axis. CONCLUSION Our findings demonstrated a novel regulatory network, the miR-326/PDCD4/NF-κB pathway, for the function of circ-UQCRC2 in LPS-induced cell injury in MRC-5 cells.
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Affiliation(s)
- Gang Zhou
- Department of Pediatrics, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Yunyan Duan
- Department of Pediatrics, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Chi Lu
- Department of Oncology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenguang Wang
- Department of Pediatrics, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei, China.
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Tu J, Wu F, Chen L, Zheng L, Yang Y, Ying X, Song J, Chen C, Hu X, Zhao Z, Ji J. Corrigendum: LncRNA PCAT6 Induces M2 Polarization of Macrophages in Cholangiocarcinoma via Modulating miR-326 and RhoA-ROCK Signaling Pathway. Front Oncol 2021; 11:680500. [PMID: 33968788 PMCID: PMC8100825 DOI: 10.3389/fonc.2021.680500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 03/25/2021] [Indexed: 11/13/2022] Open
Abstract
[This corrects the article DOI: 10.3389/fonc.2020.605877.].
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Affiliation(s)
- Jianfei Tu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Fazong Wu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Li Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Liyun Zheng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Yang Yang
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Xihui Ying
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Jingjing Song
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Chunmiao Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Xianghua Hu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Zhongwei Zhao
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
| | - Jiansong Ji
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, the Fifth Affiliated Hospital of Wenzhou Medical University/Affiliated Lishui Hospital of Zhejiang University/Clinical College of The Affiliated Central Hospital of Lishui University, Lishui, China.,Department of Interventional Diagnosis and Treatment, The Central Hospital of Zhejiang Lishui, Lishui, China
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Liu M, Wu H, Liu Y, Tan Y, Wang S, Xie S, Xiang R, Liang J, Zhang R, Xu C, He J, Li Q. MiR-326 mediates malignant biological behaviors of lung adenocarcinoma by targeting ZEB1. Sci Prog 2021; 104:368504211009379. [PMID: 33913391 PMCID: PMC10454963 DOI: 10.1177/00368504211009379] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
MiR-326 functions as an antioncogene in the several types of cancer. However, the underling mechanisms through which miRNA-326 regulates the anti-carcinogenesis of lung adenocarcinoma have remained elusive. The aim of this study was to explore the role and regulatory mechanism of miR-326 in cell proliferation, invasion, migration and apoptosis in lung adenocarcinoma. Quantitative real-time PCR (qRT-PCR) was used to detect the expression pattern of miR-326 in human bronchial epithelial cells (HBES-2B), 4 kinds of lung adenocarcinoma cell lines (H23, H1975, H2228, H2085) and 20 lung adenocarcinoma tissues. Then, H23 cells were infected with miR-326 mimics, miR-326 inhibitors and si-ZEB1 to build up-regulated miR-326 cell lines, down-regulated ZEB1(zinc-finger-enhancer binding protein 1)cell lines, simultaneous down-regulated ZEB1 and miR-326 cell lines. Moreover, CCK-8 assay, transwell invasion assay, wound healing assay and flow cytometry assay were employed to examine the effects of miR-326 and ZEB1 on the proliferation, invasion, migration and apoptosis abilities of H23 cells. Western blot was performed to explore the effects of miR-326 and ZEB1 on the expression of invasion and migration related proteins N-cadherin, E-cadherin, MMP7, MMP13, SLUG and apoptotic proteins PARP, BAX. On the mechanism, a dual-luciferase reporter gene was used to measure the target relationship between miR-326 and ZEB1. MiR-326 expression was significantly downregulated in lung adenocarcinoma tissues and cells. Overexpression of miR-326 significantly inhibited the malignant behaviors of H23 cells. Mechanically, luciferase reporter assay showed that ZEB1 was a direct target of miR-326. MiR-326 mimic downregulated the expression of ZEB1. Furthermore, knocking down ZEB1 strongly inhibited the proliferation, invasion and migration of H23 cells but promoted apoptosis. MiR-326 could target ZEB1 to inhibit the proliferation, invasion and migration of lung adenocarcinoma cells and promote apoptosis, which is a potential therapeutic target for lung adenocarcinoma.
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Affiliation(s)
- Mingxin Liu
- School of medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan, Cancer Center, School of Medicine University, Sichuan, China
| | - Hong Wu
- School of medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan, Cancer Center, School of Medicine University, Sichuan, China
| | - Yiqiang Liu
- Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan, Cancer Center, School of Medicine University, Sichuan, China
- Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Yan Tan
- The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Songtao Wang
- The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Shaohua Xie
- School of medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Run Xiang
- School of medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Jingchen Liang
- Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan, Cancer Center, School of Medicine University, Sichuan, China
- Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Ru Zhang
- The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Chuan Xu
- School of medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute Sichuan, Cancer Center, School of Medicine University, Sichuan, China
| | - Jintao He
- School of medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Qiang Li
- School of medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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Wang CJ, Chao CR, Zhao WF, Liu HM, Feng JS, Cui YX. Long noncoding RNA SNHG9 facilitates growth of glioma stem-like cells via miR-326/SOX9 axis. J Gene Med 2021; 24:e3334. [PMID: 33789359 DOI: 10.1002/jgm.3334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 03/15/2021] [Accepted: 03/30/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Glioma stem-like cells (GSCs) are greatly responsible for the progression of glioma. Long noncoding RNAs (lncRNAs) play an important role in glioma tumor progression. This study aims to explore the role and underlying mechanism of lncRNA SNHG9 in regulating GSC cell growth. METHODS GSCs were obtained from glioma cells (U87 and U251) and referred to as GSC-87 and GSC-251, respectively. The interactions between miR-326 and SNHG9 or SOX9 were analyzed using luciferase reporter assay. Cell growth of GSCs was evaluated by EdU assay and sphere formation assay. RESULTS SNHG9 expression was significantly higher in GSC-87 and GSC-251 cells than in U87 and U251 cells. SNHG9 overexpression promoted GSC cell growth, whereas SNHG9 knockdown inhibited GSC cell growth. Mechanistically, SNHG9 acted as a competitive endogenous RNA of miR-326 to elevate the expression of SOX9, a direct target of miR-326. Moreover, transfection with miR-326 inhibitor counteracted SNHG9 knockdown-mediated inhibition of GSC cell growth. CONCLUSIONS SNHG9 facilitates growth of GSCs via the miR-326/SOX9 axis. This study provides a promising therapeutic target for glioma treatment.
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Affiliation(s)
- Chao-Jie Wang
- Department of Oncology, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chu-Rui Chao
- Department of Oncology, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wei-Feng Zhao
- Department of Oncology, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hui-Min Liu
- Department of Oncology, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jiang-Shan Feng
- Department of Oncology, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yong-Xia Cui
- Department of Oncology, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Gong J, Du C, Sun N, Xiao X, Wu H. Circular RNA hsa_circ_0005397 promotes hepatocellular carcinoma progression by regulating the miR-326/PDK2 axis. J Gene Med 2021; 23:e3332. [PMID: 33783904 DOI: 10.1002/jgm.3332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 03/17/2021] [Accepted: 03/24/2021] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Circular RNAs (circRNAs) are associated with the initiation and progression of cancer. However, the biological functions and underlying mechanism of hsa_circ_0005397 in hepatocellular carcinoma (HCC) have not been fully elucidated. METHODS Hemotoxylin and eosin staining was used to assess histological changes. The expression levels of hsa_circ_0005397, miR-326 and pyruvate dehydrogenase kinase 2 (PDK2) were measured by a quantitative real-time polymerase chain reaction. Cell proliferation was evaluated by cell counting kit-8 and colony formation assays. Cell cycle distribution and apoptosis were detected by flow cytometry analysis. Caspase-3 activity was determined by a caspase-3 activity kit. Wound healing and transwell assays were used to evaluate cell migration and invasion. A western blot assay was performed to measure the expression of cyclin D1, p21, matrix metalloproteinase (MMP)2, MMP9, PDK2 and PCNA. The interaction between miR-326 and hsa_circ_0005397 or PDK2 was confirmed by dual-luciferase reporter, RNA immunoprecipitation and RNA pull-down assays. Xenograft tumor models were established to confirm the role of hsa_circ_0005397 in vivo. RESULTS Hsa_circ_0005397 and PDK2 were up-regulated, whereas miR-326 was down-regulated in HCC tissues and cells. Hsa_circ_0005397 knockdown inhibited cell proliferation and metastasis, and promoted apoptosis. miR-326 was a direct target of hsa_circ_0005397, and inhibition of miR-326 reversed the inhibitory effect of hsa_circ_0005397 silencing on HCC progression. Moreover, PDK2 was a direct target of miR-326 and PDK2 overexpression abated the anti-cancer roles of miR-326 in HCC. Additionally, hsa_circ_0005397 regulated PDK2 expression by sponging miR-326. Furthermore, hsa_circ_0005397 down-regulation suppressed tumor growth by up-regulating miR-326 and down-regulating PDK2. CONCLUSIONS Hsa_circ_0005397 facilitates HCC progression by regulating the miR-326/PDK2 axis, providing a promising circRNA-targeted therapy for HCC.
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Affiliation(s)
- Jianzhuang Gong
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Chenxu Du
- Department of Clinical Laboratory, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Nai Sun
- Department of Anesthesiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Xingguo Xiao
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Huili Wu
- Department of Digestive Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
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