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Huang J, Ruan X, Tian T, Xu Y, Hu L, Sun Y. miR-20b attenuates airway inflammation by regulating TXNIP and NLRP3 inflammasome in ovalbumin-induced asthmatic mice. J Asthma 2023; 60:2040-2051. [PMID: 37167014 DOI: 10.1080/02770903.2023.2213332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/26/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
OBJECTIVES Asthma is a chronic inflammatory disorder of the airway and is associated with pyroptosis. microRNAs (miRNAs) underlie pathogenic mechanism in asthma. This study is expected to evaluate the role of miR-20b in asthma-induced airway inflammation via regulating thioredoxin-interacting protein (TXNIP) and NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome. METHODS The asthmatic mouse model was established via ovalbumin (OVA) induction. Expressions of miR-20b, TXNIP, and NLRP3 in lung tissues were determined. Bronchial hyperresponsiveness was appraised, cells in bronchoalveolar lavage fluid were counted and categorized, and histopathological damage was observed. Levels of inflammatory and pyroptotic cytokines were measured. The binding relationship of miR-20b and TXNIP was testified. Co-location and interaction between TXNIP and NLRP3 were detected. Mice were infected with the lentivirus packaged with pcDNA3.1-TXNIP or pcDNA3.1-NLRP3 for joint experiments to observe the pathological changes of mice. RESULTS miR-20b was poorly expressed, while TXNIP and NLRP3 were highly expressed in OVA-induced mice. miR-20b overexpression attenuated airway inflammation and pyroptosis, manifested by alleviation of histopathological damage, declined numbers of total cells and inflammatory cells, lowered bronchial hyperresponsiveness, decreased levels of pro-inflammatory and pyroptotic cytokines, and increased anti-inflammatory cytokines. miR-20b targeted TXNIP and inhibited TXNIP expression, and TXNIP can bind to NLRP3 and upregulated NLRP3 expression. Upregulation of TXNIP or NLRP3 could reverse the protecting role of miR-20b overexpression in OVA-induced mice. CONCLUSION miR-20b inhibited TXNIP expression to reduce the binding of TXNIP and NLRP3, thus restricting pyroptosis and airway inflammation of asthmatic mice.
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Affiliation(s)
- Jieyuan Huang
- Department of Emergency, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Xingya Ruan
- Department of Pulmonary Disease, Department of Pulmonary and Critical Care Medicine, Kunshan Hospital of Chinese Medicine, Kunshan, China
| | - Tian Tian
- Department of Pulmonary and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yingchen Xu
- Department of Pulmonary and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Lin Hu
- Department of Pulmonary and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yun Sun
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
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Xiao B, Li L, Yao D, Mo B. Noncoding RNAs in asthmatic airway smooth muscle cells. Eur Respir Rev 2023; 32:32/168/220184. [PMID: 37076176 PMCID: PMC10113956 DOI: 10.1183/16000617.0184-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 02/07/2023] [Indexed: 04/21/2023] Open
Abstract
Asthma is a complex and heterogeneous airway disease caused by genetic, environmental and epigenetic factors treated with hormones and biologics. Irreversible pathological changes to airway smooth muscle cells (ASMCs) such as hyperplasia and hypertrophy can occur in asthmatic patients. Determining the mechanisms responsible is vital for preventing such changes. In recent years, noncoding RNAs (ncRNAs), especially microRNAs, long noncoding RNAs and circular RNAs, have been found to be associated with abnormalities of the ASMCs. This review highlights recent ncRNA research into ASMC pathologies. We present a schematic that illustrates the role of ncRNAs in pathophysiological changes to ASMCs that may be useful in future research in diagnostic and treatment strategies for patients with asthma.
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Affiliation(s)
- Bo Xiao
- Laboratory of Respiratory Disease, Affiliated Hospital of Guilin Medical University, Guilin, China
- Key Laboratory of Respiratory Diseases, Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
- These authors contributed equally to this work
| | - Liangxian Li
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
- These authors contributed equally to this work
| | - Dong Yao
- Key Laboratory of Respiratory Diseases, Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
- These authors contributed equally to this work
| | - Biwen Mo
- Key Laboratory of Respiratory Diseases, Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
- Key Laboratory of Glucose and Lipid Metabolism Disorders, Guangxi Health Commission, Guilin, China
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İlhan A, Golestani S, Shafagh SG, Asadi F, Daneshdoust D, Al-Naqeeb BZT, Nemati MM, Khalatbari F, Yaseri AF. The dual role of microRNA (miR)-20b in cancers: Friend or foe? Cell Commun Signal 2023; 21:26. [PMID: 36717861 PMCID: PMC9885628 DOI: 10.1186/s12964-022-01019-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/14/2022] [Indexed: 01/31/2023] Open
Abstract
MicroRNAs, as non-coding transcripts, modulate gene expression through RNA silencing under normal physiological conditions. Their aberrant expression has strongly associated with tumorigenesis and cancer development. MiR-20b is one of the crucial miRNAs that regulate essential biological processes such as cell proliferation, apoptosis, autophagy, and migration. Deregulated levels of miR-20b contribute to the early- and advanced stages of cancer. On the other hand, investigations emphasize the tumor suppressor ability of miR-20b. High-throughput strategies are developed to identify miR-20b potential targets, providing the proper insight into its molecular mechanism of action. Moreover, accumulated results suggest that miR-20b exerts its effects through diverse signaling pathways, including PI3K/AKT/mTOR and ERK axes. Restoration of the altered expression levels of miR-20b induces cell apoptosis and reduces invasion and migration. Further, miR-20b can be used as a biomarker in cancer. The current comprehensive review could lead to a better understanding of the miR-20b in either tumorigenesis or tumor regression that may open new avenues for cancer treatment. Video Abstract.
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Affiliation(s)
- Ahmet İlhan
- grid.98622.370000 0001 2271 3229Department of Medical Biochemistry, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Shayan Golestani
- grid.411757.10000 0004 1755 5416Department of Oral and Maxillofacial Surgery, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Seyyed Ghavam Shafagh
- grid.411746.10000 0004 4911 7066Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Asadi
- grid.488474.30000 0004 0494 1414Department of Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Danyal Daneshdoust
- grid.411495.c0000 0004 0421 4102School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | | | - Mohammed Mahdi Nemati
- grid.412763.50000 0004 0442 8645Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Fateme Khalatbari
- grid.411768.d0000 0004 1756 1744Department of Pathology, Mashhad Medical Sciences Branch, Islamic Azad University, Mashhad, Iran
| | - Amirhossein Fakhre Yaseri
- grid.412606.70000 0004 0405 433XDepartment of Genetic, Faculty of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
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Xiong Y, Luo Y, Yuwen T, Li J, Chen R, Shi F. The Regulatory Role of miR-107-Cdk6-Rb Pathway in Airway Smooth Muscle Cells in Asthma. J Asthma Allergy 2023; 16:433-445. [PMID: 37102069 PMCID: PMC10124628 DOI: 10.2147/jaa.s405457] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 04/03/2023] [Indexed: 04/28/2023] Open
Abstract
Purpose Airway remodeling is a significant pathological change of asthma. This study aimed to detect differentially expressed microRNAs in the serum of asthma patients and airway smooth muscle cells (ASMCs) of asthmatic mice, exploring their role in the airway remodeling of asthma. Methods The differentially expressed microRNAs in the serum of mild and moderate-severe asthma patients compared to healthy subjects were revealed using the "limma" package. Gene Ontology (GO) analysis was used to annotate the functions of microRNA target genes. The relative expressions of miR-107 (miR-107-3p in mice sharing the same sequence) in the primary airway smooth muscle cells (ASMCs) of the asthma mice model were tested by RT-qPCR. Cyclin-dependent kinases 6 (Cdk6), a target gene of miR-107, was predicted by algorithms and validated by dual-luciferase reporter assay and Western blot. The roles of miR-107, Cdk6, and protein Retinoblastoma (Rb) in ASMCs were examined by transwell assay and EDU KIT in vitro. Results The expression of miR-107 was down-regulated in both mild and moderate-severe asthma patients. Intriguingly, the level of miR-107 was also decreased in ASMCs of the asthma mice model. Up-regulating miR-107 suppressed ASMCs' proliferation by targeting Cdk6 and the phosphorylation level of Rb. Increasing the expression of Cdk6 or suppressing Rb activity abrogated the proliferation inhibition effect of ASMCs induced by miR-107. In addition, miR-107 also inhibits ASMC migration by targeting Cdk6. Conclusion The expression of miR-107 is down-regulated in serums of asthma patients and ASMCs of asthmatic mice. It plays a critical role in regulating the proliferation and migration of ASMCs via targeting Cdk6.
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Affiliation(s)
- Yi Xiong
- Emergency Department, Shenzhen People’s Hospital, Shenzhen, Guangdong Province, People’s Republic of China
- Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, People’s Republic of China
| | - Yani Luo
- Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, People’s Republic of China
| | - Ting Yuwen
- Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, People’s Republic of China
| | - Jiana Li
- Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, People’s Republic of China
| | - Rongchang Chen
- Key Laboratory of Shenzhen Respiratory Diseases, Institute of Shenzhen Respiratory Diseases, Shenzhen People’s Hospital, Shenzhen, Guangdong Province, People’s Republic of China
- Correspondence: Rongchang Chen, Email
| | - Fei Shi
- Emergency Department, Shenzhen People’s Hospital, Shenzhen, Guangdong Province, People’s Republic of China
- Fei Shi, Email
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Liang G, Luo Y, Wei R, Yin J, Qin Z, Lu L, Ma W. CircZNF532 knockdown protects retinal pigment epithelial cells against high glucose-induced apoptosis and pyroptosis by regulating the miR-20b-5p/STAT3 axis. J Diabetes Investig 2022; 13:781-795. [PMID: 34839589 PMCID: PMC9077727 DOI: 10.1111/jdi.13722] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 11/05/2021] [Accepted: 11/21/2021] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION The loss of retinal pigment epithelial (RPE) cells is associated with the etiology of diabetic retinopathy (DR). This study investigated the effects of circular RNA ZNF532 (circZNF532) on apoptosis and pyroptosis of RPE cells. MATERIALS AND METHODS Blood samples were collected from patients with DR and healthy volunteers. A human RPE cell line ARPE-19 was induced by high glucose (HG) and assayed for cell viability, apoptosis, and pyroptosis. The binding of miR-20b-5p with circZNF532 and STAT3 was confirmed by a luciferase activity assay. A mouse model of diabetic retinopathy was established. RESULTS CircZNF532 and STAT3 were upregulated but miR-20b-5p was downregulated in the serum samples of patients with DR and HG-induced ARPE-19 cells. Elevated miR-20b-5p or CircZNF532 knockdown enhanced proliferation but reduced apoptosis and pyroptosis of ARPE-19 cells. CircZNF532 sponged miR-20b-5p and inhibited its expression. STAT3 was verified as a target of miR-20b-5p. MiR-20b-5p modulated ARPE-19 cell viability, apoptosis, and pyroptosis by targeting STAT3. Mice with STZ-induced diabetes showed elevated expressions of circZNF532 and STAT3 but decreased the level of miR-20b-5p compared with the controls. Knockdown of circZNF532 inhibited apoptosis and pyroptosis in mouse retinal tissues. CONCLUSION CircZNF532 knockdown rescued human RPE cells from HG-induced apoptosis and pyroptosis by regulating STAT3 via miR-20b-5p.
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Affiliation(s)
- Gao‐Hua Liang
- Department of OphthalmologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
| | - Yan‐Ni Luo
- Department of OphthalmologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
| | - Ri‐Zhang Wei
- Department of OphthalmologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
| | - Jia‐Yang Yin
- Department of OphthalmologyThe First Affiliated Hospital of Jinan UniversityGuangzhouChina
| | - Zhi‐Liang Qin
- Department of OphthalmologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
| | - Li‐Li Lu
- Department of OphthalmologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
| | - Wen‐Hao Ma
- Department of OphthalmologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
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SHAN Z, LI Q, WANG S, QIAN Y, Li H. Taraxasterol inhibits TGF-β1-induced proliferation and migration of airway smooth muscle cells through regulating the p38/STAT3 signaling pathway. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.45121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Zihong SHAN
- The First Affiliated Hospital of Bengbu Medical College, China
| | - Qingqing LI
- The First Affiliated Hospital of Bengbu Medical College, China
| | - Shuying WANG
- The First Affiliated Hospital of Bengbu Medical College, China
| | - Yayun QIAN
- The First Affiliated Hospital of Bengbu Medical College, China
| | - Haibo Li
- The First Affiliated Hospital of Bengbu Medical College, China
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Ran MY, Yuan Z, Fan CT, Ke Z, Wang XX, Sun JY, Su DJ. Multiplex-Heterogeneous Network-Based Capturing Potential SNP "Switches" of Pathways Associating With Diverse Disease Characteristics of Asthma. Front Cell Dev Biol 2022; 9:744932. [PMID: 34970542 PMCID: PMC8712737 DOI: 10.3389/fcell.2021.744932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/17/2021] [Indexed: 11/25/2022] Open
Abstract
Asthma is a complex heterogeneous respiratory disorder. In recent years nubbly regions of the role of genetic variants and transcriptome including mRNAs, microRNAs, and long non-coding RNAs in the pathogenesis of asthma have been separately excavated and reported. However, how to systematically integrate and decode this scattered information remains unclear. Further exploration would improve understanding of the internal communication of asthma. To excavate new insights into the pathogenesis of asthma, we ascertained three asthma characteristics according to reviews, airway inflammation, airway hyperresponsiveness, and airway remodeling. We manually created a contemporary catalog of corresponding risk transcriptome, including mRNAs, miRNAs, and lncRNAs. MIMP is a multiplex-heterogeneous networks-based approach, measuring the relevance of disease characteristics to the pathway by examining the similarity between the determined vectors of risk transcriptome and pathways in the same low-dimensional vector space. It was developed to enable a more concentrated and in-depth exploration of potential pathways. We integrated experimentally validated competing endogenous RNA regulatory information and the SNPs with significant pathways into the ceRNA-mediated SNP switching pathway network (CSSPN) to analyze ceRNA regulation of pathways and the role of SNP in these dysfunctions. We discovered 11 crucial ceRNA regulations concerning asthma disease feature pathway and propose a potential mechanism of ceRNA regulatory SNP → gene → pathway → disease feature effecting asthma pathogenesis, especially for MALAT1 (rs765499057/rs764699354/rs189435941) → hsa-miR-155 → IL13 (rs201185816/rs1000978586/rs202101165) → Interleukin-4 and Interleukin-13 signaling → inflammation/airway remodeling and MALAT1 (rs765499057/rs764699354/rs189435941) → hsa-miR-155 → IL17RB (rs948046241) → Interleukin-17 signaling (airway remodeling)/Cytokine-cytokine receptor interaction (inflammation). This study showed a systematic and propagable workflow for capturing the potential SNP “switch” of asthma through text and database mining and provides further information on the pathogenesis of asthma.
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Affiliation(s)
- Ming-Yu Ran
- Department of College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Zhang Yuan
- Department of Respiratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chui-Ting Fan
- Department of Respiratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhou Ke
- Department of Respiratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin-Xing Wang
- Department of Respiratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jia-Yuan Sun
- Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Dong-Ju Su
- Department of Respiratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Jiang Y, Guo X, Qin J. Silencing of circHIPK3 hampers platelet-derived growth factor-induced proliferation and migration in airway smooth muscle cells through the miR-375/MMP-16 axis. Cytotechnology 2021; 73:629-642. [PMID: 34349352 DOI: 10.1007/s10616-021-00483-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/15/2021] [Indexed: 11/28/2022] Open
Abstract
Emerging evidence has suggested a pivotal role of circular RNAs (circRNAs) in the progression of asthma. In this paper, we explored the mechanisms underlying the modulation of circRNA homeodomain interacting protein kinase 3 (circHIPK3, circ_0000284) in airway smooth muscle cell (AMSC) migration and proliferation induced by platelet-derived growth factor (PDGF). The stability of circHIPK3 was gauged by Ribonuclease R (RNase R) and Actinomycin D assays. Relative expression levels of circHIPK3, microRNA (miR)-375 and matrix metallopeptidase 16 (MMP-16) were measured by quantitative real-time polymerase chain reaction (qRT-PCR) and western blot. Cell proliferation, invasion, and apoptosis were evaluated by Cell Counting Kit-8 (CCK-8) assay, transwell assay, and flow cytometry, respectively. Cell migration was detected by wound-healing and transwell assays. Direct relationship between miR-375 and circHIPK3 or MMP-16 was verified by dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. Our results indicated that PDGF induced the expression of circHIPK3 in human AMSCs (HAMSCs). CircHIPK3 silencing impeded proliferation, migration, invasion and promoted apoptosis of PDGF-treated HAMSCs. Mechanistically, circHIPK3 targeted miR-375 by directly binding to miR-375. MiR-375 was a downstream effector of circHIPK3 in controlling PDGF-induced proliferation, invasion and migration. MMP-16 was directly targeted and inhibited by miR-375, and circHIPK3 functioned as a post-transcriptional modulator of MMP-16 expression through miR-375. Moreover, miR-375-mediated inhibition of MMP-16 impacted HAMSC proliferation, invasion and migration induced by PDGF. Our findings identified the miR-375/MMP-16 axis as a novel mechanism for the modulation of circHIPK3 in PDGF-induced migration and proliferation in HASMCs.
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Affiliation(s)
- Yu Jiang
- Department of Respiratory Medicine, The NO.2, Hospital of Baoding, No. 338 Dongfeng West Road, Jingxiu District, 071000 Baoding, China
| | - Xiaoqing Guo
- Department of Respiratory Medicine, The NO.2, Hospital of Baoding, No. 338 Dongfeng West Road, Jingxiu District, 071000 Baoding, China
| | - Junhong Qin
- Department of Respiratory Medicine, The NO.2, Hospital of Baoding, No. 338 Dongfeng West Road, Jingxiu District, 071000 Baoding, China
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Wang L, Zhang Y, Xin X. Long non-coding RNA MALAT1 aggravates human retinoblastoma by sponging miR-20b-5p to upregulate STAT3. Pathol Res Pract 2020; 216:152977. [PMID: 32336590 DOI: 10.1016/j.prp.2020.152977] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 03/24/2020] [Accepted: 04/13/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Retinoblastoma (RB) is an uncommon childhood carcinoma of the developing retina. Long non-coding RNA (lncRNA) metastasis associated lung adenocarcinoma transcript 1 (MALAT1), microRNA-20b-5p (miR-20b-5p) and signal transducer and activator of transcription 3 (STAT3) was revealed to partake in RB. But their relationship was still to be investigated, so we intended to discuss the specific interaction of MALAT1, miR-20b-5p and STAT3 in RB. METHODS By RNA isolation and quantitation, we measured the MALAT1 expression in RB tissues and cell lines. Then, to determine the influence of MALAT1 on RB cells, RB cells were transfected with siRNA-MALAT1 or pcDNA-MALAT1. The interplay among MALAT1, miR-20b-5p and STAT3 were evaluated through dual luciferase reporter gene assay and RNA pull-down after RB cells treated with siRNA/pcDNA-MALAT1 or/and miR-20b-5p mimic/inhibitor. The influence of their interaction on cells was evaluated by cell counting kit-8, EdU assay and flow cytometry. Finally, the involvement of MALAT1 in tumorigenesis was elucidated in vivo. RESULTS Both RB tissues and cells showed highly expressed MALAT1. When MALAT1 was downregulated, RB cell proliferation was hindered and apoptosis was accelerated. MALAT1 sponged miR-20b-5p and upregulated STAT3. Silencing MALAT1 or overexpressing miR-20b-5p inhibited proliferation and promoted apoptosis in RB cells. The tumor growth of nude mice treated with siRNA-MALAT1 was inhibited. CONCLUSION MALAT1 could increase proliferation and reduce apoptosis by sponging miR-20b-5p to upregulate STAT3 in RB cells. Therefore, MALAT1 might be a latent target in the RB treatment.
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Affiliation(s)
- Liming Wang
- Department of Ophthalmology, Inner Mongolia Baogang Hospital, Baotou 014010, Inner Mongolia, PR China
| | - Yanwen Zhang
- Department of Ophthalmology, Inner Mongolia Baogang Hospital, Baotou 014010, Inner Mongolia, PR China
| | - Xiangyang Xin
- Department of Ophthalmology, Inner Mongolia Baogang Hospital, Baotou 014010, Inner Mongolia, PR China.
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Gao Y, Wang B, Luo H, Zhang Q, Xu M. RETRACTED: miR-217 represses TGF-β1-induced airway smooth muscle cell proliferation and migration through targeting ZEB1. Biomed Pharmacother 2018; 108:27-35. [PMID: 30212709 DOI: 10.1016/j.biopha.2018.09.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 09/05/2018] [Accepted: 09/05/2018] [Indexed: 02/08/2023] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. The journal was alerted to several suspected image similarities within Figures 2C and 3B, between Figure 3B and 5E, and an image in Figure 3A appears to be present in another publication, as detailed here: https://pubpeer.com/publications/F4E8CA0032EF5375E7867504F3FC4A. These findings were confirmed as part of an internal investigation, and in addition, a portion of Figure 2C, ‘Scramble’ group appears to contain image similarities with Figure 5D ‘miR-217 mimic + ZEB1’ group. The journal requested the authors provide explanations and source data relating to these affected figures, but the Authors did not respond to these concerns. The Editor-in-Chief assessed this case and decided to retract the article.
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Affiliation(s)
- Ying Gao
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China
| | - Botao Wang
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China
| | - Huanan Luo
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China
| | - Qing Zhang
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China
| | - Min Xu
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China.
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