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Xu X, Yin C, Dong B, Li Y, Liu S, Chen J. LncRNA XIST Protects Against Polycystic Ovary Syndrome via the Regulation of miR-212-3p/RASA1 Axis. Biochem Genet 2024:10.1007/s10528-024-10777-7. [PMID: 38609670 DOI: 10.1007/s10528-024-10777-7] [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: 10/08/2023] [Accepted: 03/07/2024] [Indexed: 04/14/2024]
Abstract
The polycystic ovary syndrome (PCOS), a common endocrine disorder, is mainly related to infertility. Moreover, it is characterized by promoted androgen, suppressed ovulation and insulin resistance. Long non-coding RNA X inactive specific transcript (lncRNA XIST), known as an oncogene or a cancer inhabited factor, is involved in several disease. However, the diagnostic mechanisms of lncRNA XIST in PCOS have not been clarified. Our study aimed to explain whether lncRNA XIST regulates KGN cells proliferation and apoptosis via microRNA (miR)-212-3p/RASA1 axis in PCOS. Levels of lncRNA XIST, miR-212-3p and RASA1 in KGN cells were detected through reverse transcription quantitative polymerase chain reaction (RT-qPCR) assay. Fluorescence in situ Hybridization (FISH) was performed to confirm the expression of lncRNA XIST and miR-212-3p in KGN cells. StarBase and dual-luciferase reporter assay were applied for exploring the interaction between miR-212-3p and RASA1. Cell viability, apoptosis, protein expression of Bcl-2 and Bax were assessed by MTT, flow cytometry analysis, RT-qPCR and western blot, respectively. We found that lncRNA XIST was low-expressed, miR-212-3p was over-expressed, and RASA1 was dramatically down-regulated in KGN cells. LncRNA XIST negatively regulated miR-212-3p expression in KGN cells. MiR-212-3p interacted with RASA1 and negatively regulated RASA1 levels in KGN cells. Up-regulation of lncRNA XIST signally decreased cells viability, stimulated more apoptotic cells, enhanced Bax expression, and depressed Bcl-2 level in KGN cells. However, these observations were abolished after miR-212-3p mimic treatment. Furthermore, miR-212-3p inhibitor significantly inhibited cell proliferation, enhanced more apoptotic cells, increased Bax expression, and decreased Bcl-2 level in KGN cells, and these effects were eliminated by RASA1-siRNA transfection. Our observations revealed that lncRNA XIST protects against PCOS through regulating miR-212-3p/RASA1 axis, suggesting that lncRNA XIST may be a promising therapeutic target for PCOS therapy.
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Affiliation(s)
- Xiaomeng Xu
- Gynecology Department 2, The Third Affiliated Hospital of Qiqihar Medical University, No. 27 Taishun Street, Qiqihar, 161000, China.
| | - Cheng Yin
- Obstetrics Department, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China
| | - Bing Dong
- Gynecology Department 2, The Third Affiliated Hospital of Qiqihar Medical University, No. 27 Taishun Street, Qiqihar, 161000, China
| | - Yuewen Li
- Gynecology Department 2, The Third Affiliated Hospital of Qiqihar Medical University, No. 27 Taishun Street, Qiqihar, 161000, China
| | - Shi Liu
- Central Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China
| | - Jun Chen
- Gynecology Department 2, The Third Affiliated Hospital of Qiqihar Medical University, No. 27 Taishun Street, Qiqihar, 161000, China
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Li HB, Wang D, Zhang Y, Shen D, Che YQ. Long noncoding RNA XIST: A novel independent prognostic biomarker for patients with ABC-DLBCL receiving R-CHOP treatment. Carcinogenesis 2024:bgae017. [PMID: 38426786 DOI: 10.1093/carcin/bgae017] [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: 07/23/2023] [Indexed: 03/02/2024] Open
Abstract
Approximately one-third of activated B-cell-like diffuse large B-cell lymphoma (ABC-DLBCL) cases were unresponsive to standard first-line therapy; thus, identifying biomarkers to evaluate therapeutic efficacy and assessing the emergence of drug resistance is crucial. Through early-stage screening, long noncoding RNA (lncRNA) X-inactive specific transcript (XIST) was found to be correlated with the R-CHOP treatment response. This study aimed to clarify the characteristics of XIST in ABC-DLBCL. The expression level of XIST in 161 patients with ABC-DLBCL receiving R-CHOP therapy was examined via RNA in situ hybridization, and the association between XIST expression and clinicopathological features, treatment response, and prognosis was analyzed in the study cohort and validated in the Gene Expression Omnibus cohort. Cell biological experiments and bioinformatics analyses were conducted to reveal aberrant signaling. The proportion of complete response in patients with high XIST expression was lower than that in patients with low XIST expression (53.8% vs. 77.1%) (P = 0.002). High XIST expression was remarkably associated with the characteristics of tumor progression and was an independent prognostic element for overall survival (P = 0.039) and progression-free survival (P = 0.027) in ABC-DLBCL. XIST was proven to be involved in m6A-related methylation and ATF6-associated autophagy. XIST knockdown repressed ABC-DLBCL cellular proliferation by regulating Raf/MEK/ERK signaling. High XIST expression was associated with ABC-DLBCL tumorigenesis and development and contributed to R-CHOP treatment resistance. XIST may be a promising signal to predict ABC-DLBCL prognosis.
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Affiliation(s)
- Han-Bing Li
- Department of Clinical Laboratory, National Cancer Center/ National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P.R. China
| | - Di Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, P.R. China
| | - Yue Zhang
- Department of Clinical Laboratory, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Di Shen
- Department of Clinical Laboratory, National Cancer Center/ National Clinical Research Center for Cancer/ Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P.R. China
| | - Yi-Qun Che
- Center for Clinical Laboratory, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
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Wang J, Yang Y, Xu Y, Xu Z, Zhao X, Jia R, Dai Y. Long noncoding RNA XIST inhibition promotes Leydig cell apoptosis by acting as a competing endogenous RNA for microRNA-145a-5p that targets SIRT1 in late-onset hypogonadism. Cell Tissue Res 2024; 395:285-297. [PMID: 38353742 DOI: 10.1007/s00441-024-03860-3] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 01/04/2024] [Indexed: 03/01/2024]
Abstract
Leydig cell (LCs) apoptosis is responsible for decreased serum testosterone levels during late-onset hypogonadism (LOH). Our study was designed to illustrate the regulatory effect of lncRNA XIST on LCs and to clarify its molecular mechanism of action in LOH. The Leydig cells (TM3) was treated by 300 μM H2O2 for 8 h to establish Leydig cell oxidative stress model in vitro. The expression levels of lncRNA XIST in the testicular tissues of patients with LOH were measured using fluorescence in situ hybridization (FISH). The interaction between lncRNA XIST/SIRT1 and miR-145a-5p was assessed using starBase and dual-luciferase reporter gene assays. Apoptotic cells and Caspase3 activity were determined by flow cytometry (FCM) assay. Testosterone concentration was determined by ELISA. Moreover, histological assessment of testicles in mice was performed by using HE staining and the TUNEL assay was used to determine apoptosis. We found that the lncRNA XIST was downregulated in the testicular tissues of LOH patients and mice and in H2O2-induced TM3 cells. XIST siRNA significantly promoted apoptosis, enhanced Caspase3 activity and reduced testosterone levels in H2O2-stimulated TM3 cells. Further studies showed that the miR-145a-5p inhibitor reversed the effect of XIST-siRNA on H2O2-induced Leydig cell apoptosis. MiR-145a-5p negatively regulated SIRT1 expression, and SIRT1-siRNA reversed the effects of the miR-145a-5p inhibitor on H2O2 stimulated TM3 cells. The in vivo experiments indicated that silencing of the lncRNA XIST aggravated LOH symptoms in mice. Inhibition of lncRNA XIST induces Leydig cell apoptosis through the miR-145a-5p/SIRT1 axis in the progression of LOH.
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Affiliation(s)
- Jing Wang
- Department of Urology, Nanjing First Hospital, Nanjing Medical University, No. 68 Changle Road, Qinhuai District, Nanjing, 210006, China
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China
| | - Yiqiong Yang
- Department of Emergency, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yang Xu
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China
| | - Zhipeng Xu
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China
| | - Xiaozhi Zhao
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China
| | - Ruipeng Jia
- Department of Urology, Nanjing First Hospital, Nanjing Medical University, No. 68 Changle Road, Qinhuai District, Nanjing, 210006, China.
| | - Yutian Dai
- Department of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Gulou District, Nanjing, 210008, China.
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Li Y, Liu Y, Yao X, Wang H, Shi Z, He M. METTL14-mediated lncRNA XIST silencing alleviates GDM progression by facilitating trophoblast cell proliferation and migration via the miR-497-5p/FOXO1 axis. J Biochem Mol Toxicol 2024; 38:e23621. [PMID: 38229320 DOI: 10.1002/jbt.23621] [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: 01/26/2023] [Revised: 09/07/2023] [Accepted: 12/14/2023] [Indexed: 01/18/2024]
Abstract
Gestational diabetes mellitus (GDM), a prevalent complication during the gestation period, has been linked to impaired proliferation and migration of trophoblasts causing placental maldevelopment. We previously found that lncRNA X-inactive specific transcript (XIST) played an essential role in GDM progression. Here, we investigated the precise biological functions as well as the upstream and downstream regulatory mechanisms of XIST in GDM. We found that XIST and forkhead box O1 (FOXO1) were conspicuously upregulated and miR-497-5p and methyltransferase-like 14 (METTL14) were downregulated in the placentas of GDM patients. XIST silencing facilitated proliferation and migration and inhibited cell apoptosis and cell cycle arrest in HG-cultured HTR8/SVneo cells. METTL14 inhibited XIST expression through m6A methylation modification. XIST overexpression abrogated the positive effect of METTL14 overexpression on HG-cultured HTR8/SVneo cell progression. MiR-497-5p and FOXO1 are downstream regulatory genes of XIST in HTR8/SVneo cells. Reverse experiments illustrated that XIST mediated HTR8/SVneo cell functions by regulating the miR-497-5p/FOXO1 axis. Additionally, XIST silencing augmented glucose tolerance and alleviated fetal detrimental changes in GDM rats. To conclude, METTL14-mediated XIST silencing facilitated proliferation and migration and inhibited cell apoptosis and cell cycle arrest in HG-cultured HTR8/SVneo cells via the miR-497-5p/FOXO1 axis, thereby alleviating GDM progression in rats.
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Affiliation(s)
- Yanchuan Li
- Obstetrical Department, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Yanfeng Liu
- General Surgery, The Second Affiliated Hospital, Xi'an Medical University, Xi'an, Shaanxi, China
| | - Xiao Yao
- Medical Services, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Haili Wang
- Obstetrical Department, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Ziyun Shi
- Obstetrical Department, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Meiqing He
- Ultrasound Department, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
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Wang H, Li Y, Jiang S, Liu N, Zhou Q, Li Q, Chen Z, Lin Y, Chen C, Deng Y. LncRNA xist regulates sepsis associated neuroinflammation in the periventricular white matter of CLP rats by miR-122-5p/PKCη Axis. Front Immunol 2023; 14:1225482. [PMID: 38115999 PMCID: PMC10728298 DOI: 10.3389/fimmu.2023.1225482] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 10/30/2023] [Indexed: 12/21/2023] Open
Abstract
Background Neuroinflammation is a common feature of many neurological diseases, and remains crucial for disease progression and prognosis. Activation of microglia and astrocytes can lead to neuroinflammation. However, little is known about the role of lncRNA xist and miR-122-5p in the pathogenesis of sepsis-associated neuroinflammation (SAN). This study aims to investigate the role of lncRNA xist and miR-122-5p in the pathogenesis of SAN. Methods Levels of miR-122-5p and proinflammatory mediators were detected in the cerebrospinal fluid (CSF) of patients with intracranial infection (ICI) by ELISA and qRT-PCR. miRNA expression in the periventricular white matter (PWM) in rats was analyzed by high-throughput sequencing. Levels of lncRNA xist, miR-122-5p and proinflammatory mediators in the PWM were measured using qRT-PCR and western blot. Bioinformatics analysis was used to predict the upstream and downstream of miR-122-5p. The interaction between miR-122-5p and its target protein was validated using luciferase reporter assay. BV2 and astrocytes were used to detect the expression of lncRNA xist, miR-122-5p. Results The level of miR-122-5p was significantly decreased in the CSF of ICI patients, while the expression of IL-1β and TNF-α were significantly upregulated. Furthermore, it was found that the expression of IL-1β and TNF-α were negatively correlated with the level of miR-122-5p. A high-throughput sequencing analysis showed that miR-122-5p expression was downregulated with 1.5-fold changes in the PWM of CLP rats compared with sham group. Bioinformatics analysis found that lncRNA xist and PKCη were the upstream and downstream target genes of miR-122-5p, respectively. The identified lncRNA xist and PKCη were significantly increased in the PWM of CLP rats. Overexpression of miR-122-5p or knockdown of lncRNA xist could significantly downregulate the level of PKCη and proinflammatory mediators from activated microglia and astrocytes. Meanwhile, in vitro investigation showed that silencing lncRNA xist or PKCη or enhancing the expression of miR-122-5p could obviously inhibit the release of proinflammatory mediators in activated BV2 cells and astrocytes. Conclusion LncRNA xist could regulate microglia and astrocytes activation in the PWM of CLP rats via miR-122-5p/PKCη axis, further mediating sepsis associated neuroinflammation.
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Affiliation(s)
- Huifang Wang
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Yichen Li
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Shuqi Jiang
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Nan Liu
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, School of Medicine South China University of Technology, Guangzhou, China
| | - Qiuping Zhou
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Qian Li
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Zhuo Chen
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, School of Medicine South China University of Technology, Guangzhou, China
| | - Yiyan Lin
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Chunbo Chen
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Yiyu Deng
- Department of Intensive Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
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Ren Q, Xu Y, Xu L, Lu Y, Zheng Y. Hypoxic bone marrow mesenchymal stem cell-derived exosomal lncRNA XIST attenuates lipopolysaccharide-induced acute lung injury via the miR-455-3p/Claudin-4 axis. Int Immunopharmacol 2023; 125:111066. [PMID: 37866316 DOI: 10.1016/j.intimp.2023.111066] [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: 08/18/2023] [Revised: 10/03/2023] [Accepted: 10/10/2023] [Indexed: 10/24/2023]
Abstract
Mesenchymal stem cell-derived exosomes and long non-coding RNAs (lncRNAs) have been identified to play a role in acute lung injury (ALI). In this study, we investigated whether exosomal lncRNAs could regulate ALI and the underlying mechanisms. Bone marrow mesenchymal stem cells (BM-MSCs) were pretreated with hypoxia or normoxia, and exosomes were subsequently extracted from normoxic BM-MSCs (Nor-exos) and hypoxic BM-MSCs (Hypo-exos). A rat model of ALI was established via an airway perfusion of lipopolysaccharide (LPS). Exosomes were administered via the tail vein to evaluate the in vivo effect of exosomes in ALI. LPS-exposed RLE-6TN cells were incubated with exosomes to explore their in vitro effect in ALI. A luciferase reporter assay was used to evaluate the interaction between lncRNA XIST and miR-455-3p, as well as miR-455-3p and Claudin-4. We found that the exosomes attenuated LPS-induced ALI and Hypo-Exos exerted a greater therapeutic effect compared with Nor-exos both in vitro and in vivo. Moreover, an abundance of lncRNA XIST was observed in Hypo-exos compared with Nor-exos. Mechanistically, LncRNA XIST functioned as a miR-455-3p sponge and targeted Claudin-4 in ALI. Our results provide novel insight into the role of exosomal lncRNA XIST for the treatment of ALI. Thus, hypoxic pretreatment may represent an effective method for improving the therapeutic effects of exosomes.
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Affiliation(s)
- Qinghuan Ren
- Alberta College, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yingge Xu
- Emergency & Intensive Care Unit Center, Department of Emergency Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Liming Xu
- Emergency & Intensive Care Unit Center, Department of Emergency Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yuanqiang Lu
- Department of Emergency Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yueliang Zheng
- Emergency & Intensive Care Unit Center, Department of Emergency Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China; The First People's Hospital of Aksu District in Xinjiang, Aksu, Xinjiang, China.
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Yang J, Gong Z, Dong J, Bi H, Wang B, Du K, Zhang C, Chen L. lncRNA XIST inhibition promotes M2 polarization of microglial and aggravates the spinal cord injury via regulating miR-124-3p / IRF1 axis. Heliyon 2023; 9:e17852. [PMID: 37455998 PMCID: PMC10344764 DOI: 10.1016/j.heliyon.2023.e17852] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023] Open
Abstract
Spinal cord injury (SCI) has a high disability rate and mortality rate. Recently, LncRNA XIST has been found to be involved in the regulation of inflammatory responses. Therefore, we aimed to investigate the role of XIST in the occurrence and development of SCI and the specific regulation mechanism. Methods: 100 ng/mL lipopolysaccharide (LPS) was used to treat mouse microglia BV2 cells. Hitting spinal cord was performed to C57BL/6 mice for establishing SCI model. Real-time reverse transcriptase-polymerase chain reaction (RT-qPCR), Western blot, Immunofluorescence (IF) and Enzyme linked immunosorbent assay (ELISA) experiments were used to explore the function of XIST, miR-124-3p and IRF1 in LPS-induced BV2 cells. RT-qPCR, Nissl staining, IF, Western blot and ELISA experiment were performed to study the function of XIST in SCI mice. Dual-luciferase reporter assay, RNA immunoprecipitation (RIP), RT-qPCR and Western blot assays were utilized to identify the interaction among XIST, miR-124-3p and IRF1. Results: XIST was upregulated in LPS-induced BV2 cells and spinal cord tissues of SCI mice. Overexpression of XIST promoted the M1 microphages polarization and cytokines concentration in LPS-stimulated BV2 cells, aggravated SCI of mice. Downregulated XIST promoted M1-to-M2 conversion of microglial and relieved the injury of SCI mice. Mechanism verification indicated that XIST acted as a molecular sponge of miR-124-3p and regulated IRF1 expression. Increased miR-124-3p or reduced IRF1 inhibited M1 polarization of microglial and decreased the production of inflammatory cytokines in LPS-induced BV2 cells. Increased XIST or decreased miR-124-3p had an opposite of on LPS-induced BV2 cells. Conclusion: Overexpression of XIST enhanced M1 polarization of microglia and promoted the level of inflammatory cytokines through sponging miR-124-3p and regulating IRF1 expression.
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Affiliation(s)
| | | | | | | | | | | | | | - Lingqiang Chen
- Corresponding author. Department of Orthopaedics, The First affiliated hospital of Kunming medical University, No.295 Xichang Rd, Kunming 650032, Yunnan, China
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Wen C, Lu X, Sun Y, Li Q, Liao J, Li L. Naringenin induces the cell apoptosis of acute myeloid leukemia cells by regulating the lncRNA XIST/miR-34a/HDAC1 signaling. Heliyon 2023; 9:e15826. [PMID: 37206002 PMCID: PMC10189189 DOI: 10.1016/j.heliyon.2023.e15826] [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: 02/14/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/21/2023] Open
Abstract
Acute myeloid leukemia (AML) is a life-threatening aggressive malignancy of the bone marrow and has posed a great challenge to the clinic, due to a lack of fully understanding of the molecular mechanism. Histone deacetylase 1 (HDAC1) has been reported to be a therapeutic target for treating AML. Naringenin (Nar) may act as an anti-leukemic agent and suppress the expression of HDACs. However, the potential underlying mechanism of Nar in suppressing the activity of HDAC1 remains unclear. Here, we found that Nar induced the apoptosis, decreased the expression of lncRNA XIST and HDAC1, and increased the expression of microRNA-34a in HL60 cells. Sh-XIST transfection could induce cell apoptosis. On the contrary, the forced expression of XIST might reverse the biological actions of Nar. XIST could sponge miR-34a, which targeted to degrade HDAC1. The forced expression of HDAC1 could effectively reverse the effects of Nar. Thus, Nar can induce cell apoptosis by mediating the expression of lncRNA XIST/miR-34a/HDAC1 signaling in HL60 cells.
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Affiliation(s)
- Chao Wen
- School of Nursing, Gannan Medical University, Ganzhou, 341000, China
| | - Xiaoliang Lu
- Department of General Surgery, Ningdu County People's Hospital, Ganzhou, 341000, China
| | - Yingyin Sun
- Gannan Health Vocational College, Ganzhou, 341000, China
| | - Qi Li
- Department of Basic Medicine, Chuxiong Medical and Pharmaceutical College, Chuxiong, 675005, China
| | - Jing Liao
- School of Nursing, Gannan Medical University, Ganzhou, 341000, China
| | - Lin Li
- Department of Hematology, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, China
- Corresponding author.
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Guo Y, Gao Y, Liu S. lncRNA XIST is associated with preeclampsia and mediates trophoblast cell invasion via miR-340-5p/KCNJ16 signaling pathway. Transpl Immunol 2022; 74:101666. [PMID: 35809813 DOI: 10.1016/j.trim.2022.101666] [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: 05/27/2021] [Revised: 07/03/2022] [Accepted: 07/04/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND Preeclampsia (PE) is a syndrome commonly occurring among the pregnant. Shallow trophoblast invasion is considered to be closely related to PE. Therefore, in trophoblast cells, we explored the potential mechanisms of lncRNA XIST in the modulation of trophoblast invasion and proliferation. METHODS GEO online analyzer was used to screen the abnormally expressed RNAs in placenta tissues from patients with severe PE and healthy controls. The prediction of target bindings was performed on TargetScan and starBase. Transfection was conducted to regulate the RNA expression levels in trophoblast cells, HTR-8/SVneo. RT-qPCR measured expression of lncRNA XIST, miR-340-5p and KCNJ16. The CCK-8 assay examined cell viability. Flow cytometer analyzed apoptosis and luciferase assay determined the luciferase activity. Transwell assays detected the invasion and western blot verified the changes in protein expression of MMP2, MMP9 and KCNJ16 in trophoblast cells. RESULTS lncRNA XIST expression was enhanced in PE patients. Upregulation of lncRNA XIST in HTR-8/SVneo cells inhibited the cell proliferation and invasion, and induced apoptosis. XIST upregulation inhibited MMP2 and MMP9 protein expression. lncRNA XIST/ KCNJ16 interplayed as ceRNAs of miR-340-5p. Specifically,miR-340-5p overexpression reversed the effect of XIST upregulation on the cell apoptosis, proliferation and invasive ability and the knockdown of KCNJ16 could add to the effect of miR-340-5p overexpression in HTR-8/SVneo. CONCLUSION lncRNA XIST was upregulated in PE. Upregulation of lncRNA XIST exerted the inhibitory effects on the proliferation and invasion of trophoblast cells through the interactions with miR-340-5p/KCNJ16, which suggests that the lncRNA XIST/miR-340-5p/KCNJ16 axis might play a role in PE.
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Affiliation(s)
- Yuling Guo
- Tianjin Key Laboratory of human development and reproductive regulation, Tianjin Central Hospital of Gynecology Obstetrics, No. 156 Nankai Sanma Road Nankai District, Tianjin, 300100, China
| | - Yiping Gao
- Tianjin Key Laboratory of human development and reproductive regulation, Tianjin Central Hospital of Gynecology Obstetrics, No. 156 Nankai Sanma Road Nankai District, Tianjin, 300100, China
| | - Shasha Liu
- Tianjin Key Laboratory of human development and reproductive regulation, Tianjin Central Hospital of Gynecology Obstetrics, No. 156 Nankai Sanma Road Nankai District, Tianjin, 300100, China.
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Guo Y, Peng X, Cheng R, Chen H, Luo X. Long non-coding RNA-X-inactive specific transcript inhibits cell viability, and induces apoptosis through the microRNA-30c-5p/Bcl2-like protein 11 signaling axis in human granulosa-like tumor cells. Bioengineered 2022; 13:14107-14117. [PMID: 35730492 PMCID: PMC9342309 DOI: 10.1080/21655979.2022.2080366] [Citation(s) in RCA: 2] [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] [Indexed: 11/16/2022] Open
Abstract
The role of long noncoding RNAs (lncRNAs) is being actively explored in polycystic ovary syndrome (PCOS). Recent research has shown that long non-coding RNA (lncRNA) X–inactive Specific Transcript (XIST) is overexpressed in patients with PCOS and is associated with poor pregnancy outcomes. However, the precise function and mechanism of action of lncRNA XIST in PCOS are unknown. We aimed to determine whether lncRNA XIST contributes to PCOS by modulating ovarian granulosa cell physiology. We also investigated any potential molecular regulatory mechanisms. In this study, we discovered that the lncRNA XIST was significantly downregulated in human ovarian granulosa-like tumor (KGN) cells. Notably, overexpression of lncRNA XIST decreased miR-30c-5p expression in KGN cells, inhibited proliferation, and induced apoptosis in KGN cells. However, cotransfection with amiR-30c-5p mimic significantly reduced these effects. Additionally, we discovered that the miR-30c-5p mimic effectively inhibited Bcl2-like protein 11 (BCL2L11) expression, a critical apoptotic promoter, whereas silencing of miR-30c-5p increased BCL2L11 expression, inhibited KGN cell proliferation, and induced apoptosis. In contrast, cotransfection of BCL2L11 with siRNA significantly reversed these effects. In conclusion, this study established that lncRNA XIST plays a critical role in PCOS by modulating the miR-30c-5p/BCL2L11 signaling axis and regulating ovarian granulosa cell physiology.
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Affiliation(s)
- Yichuan Guo
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China
| | - Xueping Peng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China
| | - Ran Cheng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China.,Reproductive Endocrinology and Regulation Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Hui Chen
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China.,Reproductive Endocrinology and Regulation Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiaoyan Luo
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China.,Reproductive Endocrinology and Regulation Laboratory, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
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Chen Z, Qi L, Fu H, Ma L. Long non-coding RNA X-inactive specific transcript suppresses the progression of hepatocellular carcinoma through microRNA-221-3p-targeted regulation of O6-methylguanine-DNA methyltransferase. Bioengineered 2022; 13:14013-14027. [PMID: 35723009 PMCID: PMC9275909 DOI: 10.1080/21655979.2022.2086382] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
MicroRNA-221-3p (miR-221-3p) is an important regulator involved in the progression and prognosis of various cancers. In this study, we aimed to investigate the diagnostic and prognostic value of miR-221-3p expression along with long non-coding RNA X–inactive specific transcript (XIST), which was identified as its upstream regulator in hepatocellular carcinoma (HCC) by bioinformatics analysis, and further validated by RNA immunoprecipitation (RIP) and dual-luciferase reporter assays. Their expression was measured in tumor tissues and corresponding non-tumor tissues by quantitative real-time PCR (qRT-PCR), which revealed that XIST was weakly expressed in HCC cells and tumors, while miR-221-3p was overexpressed. Complete knockdown of XIST enhanced HCC cell proliferation and migration and inhibited apoptosis, as observed by MTT, transwell, and flow cytometry experiments, respectively. Animal studies validated that XIST knockdown induces tumor growth in vivo. In contrast, upregulation of XIST in HCC cells suppressed their proliferation and migration, stimulated apoptosis, and retarded the growth rate of tumors in vivo. These effects were partially reversed by upregulating miR-221-3p expression. Furthermore, we demonstrated that O6-methylguanine-DNA methyltransferase (MGMT) is a downstream target of miR-221-3p. It was weakly expressed in HCC cells and tumors and showed a negative correlation with miR-221-3p. Forced MGMT expression repressed proliferation and migration and enhanced apoptosis in HCC cells. Nevertheless, these anti-tumor effects induced by MGMT overexpression could be abolished by miR-221-3p upregulation. Collectively, our findings reveal that XIST blocks the development of HCC through miR-221-3p-targeted regulation of MGMT. This reveals a new mechanism involved in the development of HCC.
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Affiliation(s)
- Zushun Chen
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Lunan Qi
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Hongyuan Fu
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Liang Ma
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
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Zhang X, Wang S, Cai Y, He W, Yang Q, Li C. Regulatory Mechanism of MicroRNA-9 / Long Non-Coding RNA XIST Expression on Mouse Macrophage RAW264.7 Apoptosis Induced by Oxidized Low Density Lipoprotein. Bioengineered 2022; 13:3537-3550. [PMID: 35109760 PMCID: PMC9487675 DOI: 10.1080/21655979.2021.2018978] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
It aims to analyze the influential mechanism of microRNA-9 (miR-9) and long non-coding RNA XIST (lncRNA XIST) expression on the proliferation and apoptosis of macrophages induced by oxidized-low density lipoprotein (ox-LDL). Firstly, lncRNA XIST overexpression vector was constructed, and then RAW264.7 cells were used as the research object. Methylthiazolyl tetrazolium (MTT) method, flow cytometry, and Western blot were used to detect and compare the differences of cell proliferation, apoptosis, and the expression levels of apoptosis signal-regulating kinase 1 (ASK1), c-Jun N-terminal kinase (JNK), matrix metalloproteinase-9 (MMP-9), and B-cell lymphoma-2 (Bcl-2) after ox-LDL induction and transfection of miR-9 mimic, miR-9 inhibitor and XIST expression vector, respectively. The results showed that lncRNA XIST overexpression vector was successfully constructed and transfected into cells, wh5ich can inhibit the expression level of miR-9. Compared with the normal control group, ox-LDL can inhibit cell proliferation, promote cell apoptosis, and increase the expression level of target protein. Moreover, transfection of XIST expression vector based on ox-LDL induction can significantly enhance the inhibition of cell proliferation, and promote cell apoptosis and the expression of target protein. Transfection of miR-9 mimic can improve the biological changes induced by ox-LDL. After co-transfection of miR-9 mimic and XIST expression vector based on ox-LDL induction, cell proliferation, apoptosis, and target protein expression level were not significantly different from those induced by ox-LDL alone. In summary, the increased expression level of miR-9 can inhibit the apoptosis of macrophages induced by ox-LDL. lncRNA XIST can positively regulate the apoptosis of macrophages induced by ox-LDL.
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Affiliation(s)
- Xiaoling Zhang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Si Wang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yuyan Cai
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Weihong He
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan Province, China
| | - Qing Yang
- Department of Animal Imaging Platform of Public Experimental Technology Center, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Chen Li
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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Zhang J, Chen C, Zhang S, Chen J, Wu L, Chen Z. LncRNA XIST restrains the activation of Müller cells and inflammation in diabetic retinopathy via stabilizing SIRT1. Autoimmunity 2021; 54:504-513. [PMID: 34498499 DOI: 10.1080/08916934.2021.1969551] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 12/18/2022]
Abstract
BACKGROUND Recent studies have provided strong evidence that lncRNAs play a functional regulatory role in diabetic retinopathy (DR). The purpose of this study was to investigate the effect of long non-coding RNA (lncRNA) X-inactive specific transcript (XIST) in DR. METHODS A DR mouse model was established by intraperitoneal injection of streptozotocin (STZ), and then the mouse retinal Müller cells (mMCs) were isolated from retina tissues of mice. Human retinal Müller cell line (HMCs) and mMCs and were treated with high glucose (HG) to simulate an in vitro DR model. XIST expression was detected by qRT-PCR. Next, XIST overexpression was performed in mMCs and HMCs to examine its effect on the activation of Müller cells and production of pro-inflammatory cytokines. Subsequently, the interaction between XIST and SIRT1 was verified, and the ubiquitination level of SIRT1 as well as the stability of SIRT1 protein were assessed. RESULTS XIST was down-regulated in retinal tissues of DR mice and HG-induced HMCs. Overexpression of XIST inhibited HG-induced activation of mMCs and HMCs, and reduced the production of pro-inflammatory cytokines. XIST promoted SIRT1 expression via interacting with SIRT1 and inhibiting the ubiquitination of SIRT1. Furthermore, SIRT1 silencing partly abrogated the effect of XIST overexpression on the activation of mMCs and HMCs as well as the production of pro-inflammatory cytokines induced by HG. CONCLUSION We concluded that XIST restrained the activation of Müller cells and the production of pro-inflammatory cytokines via stabilizing SIRT1.
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Affiliation(s)
- Jiayu Zhang
- Department of Ophthalmology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, China
| | - Chengwei Chen
- Department of Ophthalmology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, China
| | - Sifang Zhang
- Department of Ophthalmology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, China
| | - Jiawei Chen
- Department of Ophthalmology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, China
| | - Liang Wu
- Department of Ophthalmology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, China
| | - Zhenguo Chen
- Department of Ophthalmology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, China
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Xiao X, He Z, Tong S, Dai L, Xiao Q, Qin Z, Lin T. lncRNA XIST knockdown suppresses hypoxia/reoxygenation (H/R)-induced apoptosis of H9C2 cells by regulating miR-545-3p/G3BP2. IUBMB Life 2021; 73:1103-1114. [PMID: 34060227 DOI: 10.1002/iub.2512] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 05/14/2021] [Accepted: 05/25/2021] [Indexed: 02/06/2023]
Abstract
This study was aimed at determining the roles and functions of lncRNA XIST/miR-545-3p/G3BP2 axis during hypoxia/reoxygenation (H/R)-induced H9C2 cell apoptosis. H9C2 cells were distributed into two groups, the H/R injury and control groups. High-throughput lncRNA sequencing was applied in the determination of differentially expressed lncRNAs between H/R-induced H9C2 cells and normal H9C2 cells. Real-time polymerase chain reactions (RT-PCR) were used to confirm the expression levels of lncRNA XIST in H/R-induced H9C2 cells. H9C2 cells were then transfected with lncRNA XIST recombinant plasmid (lncRNA XIST), sh-LINC XIST, agomiR-545-3p, antagomiR-545-3p, pcDNA-G3BP2, sh-G3BP2, and a corresponding negative control (NC). Bioinformatic analyses revealed that MiR-545-3p was a target for lncRNA XIST. This finding was confirmed by dual-luciferase reporter assay. The degree of cell apoptosis was evaluated by a flow cytometer. RT-PCR and western blot were performed to assess the apoptotic-related proteins in each group. A total of 859 differentially expressed lncRNAs (up-regulated = 502, down-regulated = 357) were identified. LncRNA XIST was found to be down-regulated in H/R-induced H9C2 cells while miR-545-3p was distinctly up-regulated. miR-545-3p was established to be a direct target for LncRNA XIST. LncRNA XIST significantly enhanced the apoptotic rate, while its inhibition suppressed the apoptotic rate. AgomiR-545-3p partially blocked the lncRNA XIST and enhanced the apoptosis of H/R-induced H9C2 cells. Moreover, miR-545-3p was shown to be a direct target for G3BP2. The overexpression of G3BP2 partially reversed the apoptotic effects of miR-545-3p on H/R-induced H9C2 cells. lncRNA XIST/miR-545-3p/GBP2 was found to be an apoptotic regulator in H/R-induced H9C2 cells.
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Affiliation(s)
- Xiaohong Xiao
- Department of Cardiology, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Zhenzhen He
- Department of Cardiology, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Suiyang Tong
- Department of Cardiology, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Lixia Dai
- Department of Hematology, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Qiuling Xiao
- Department of Hematology, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Zhongxin Qin
- Department of Cardiology, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
| | - Tao Lin
- Department of Cardiology, Suizhou Hospital, Hubei University of Medicine, Suizhou, China
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15
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Niu S, Xiang F, Jia H. Downregulation of lncRNA XIST promotes proliferation and differentiation, limits apoptosis of osteoblasts through regulating miR-203-3p/ZFPM2 axis. Connect Tissue Res 2021; 62:381-392. [PMID: 32326773 DOI: 10.1080/03008207.2020.1752200] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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] [Indexed: 02/06/2023]
Abstract
Background: Bone fracture is a common medical condition. Evidence suggested that long noncoding RNAs (lncRNAs) could regulate the bio-function in osteoblast. In this study, we explored the role and mechanism of lncRNA X-inactive specific transcript (XIST) on the proliferation, apoptosis, and differentiation of osteoblasts using MC3T3-E1 cells. Methods: Expression of XIST, microRNA-203-3p (miR-203-3p), and zinc finger protein multitype 2 (ZFPM2) was measured by quantitative real-time polymerase chain reaction (qRT-PCR). Cell viability and apoptosis of MC3T3-E1 cells were measured using the Cell Counting Kit-8 (CCK-8) and the flow cytometry. Western blot was used to measure the expression of cell cycle-related proteins, apoptosis-related proteins, and ZFPM2. Levels of differentiation-related factors were measured by qRT-PCR, western blot, and alkaline phosphatase (ALP) kit. Target interaction between miR-203-3p and XIST or ZFPM2 was predicted through bioinformatics analysis and verified by dual-luciferase reporter, RNA immunoprecipitation (RIP) assay, or RNA pull-down assay. Results: The expression of XIST and ZFPM2 was increased while miR-203-3p was decreased in plasmas and MC3T3-E1 cells. Knockdown of XIST promoted the proliferation, differentiation, but limited apoptosis in MC3T3-E1 cells. . Mechanically, overexpression of XIST could reverse the bio-function of miR-203-3p transfection. Additionally, miR-203-3p inverted a series of bio-functional effects of ZFPM2. Furthermore, anti-miR-203-3p rescued si-XIST-induced downregulation of ZFPM2. Conclusion: Downregulation of lncRNA XIST promoted osteoblast proliferation and differentiation, but limited apoptosis by miR-203-3p/ZFPM2 axis.
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Affiliation(s)
- Shizhen Niu
- General Teaching and Research Office, Jining Medical University, Jining, Shandong, China
| | - Feng Xiang
- Department of Orthopaedics and Traumatology, Zaozhuang Hospital of Traditional Chinese Medicine, Zaozhuang, Shandong, China
| | - Huaihai Jia
- Department of Orthopaedics and Traumatology, Zaozhuang Hospital of Traditional Chinese Medicine, Zaozhuang, Shandong, China
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Sun ZL, Chen MH, Guo YN, Liu ZQ. LncRNA XIST is elevated in patients with chronic heart failure and has a regulatory role in cardiomyocyte function. J BIOL REG HOMEOS AG 2021; 35:677-682. [PMID: 33792216 DOI: 10.23812/20-731-l] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Z L Sun
- Second Department of Cardiology, Changle People's Hospital, Shandong, China
| | - M H Chen
- Second Department of Cardiology, Changle People's Hospital, Shandong, China
| | - Y N Guo
- First Department of Cardiology, Changle People's Hospital, Shandong, China
| | - Z Q Liu
- Second Department of Cardiology, Changle People's Hospital, Shandong, China
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Lan F, Zhang X, Li H, Yue X, Sun Q. Serum exosomal lncRNA XIST is a potential non-invasive biomarker to diagnose recurrence of triple-negative breast cancer. J Cell Mol Med 2021; 25:7602-7607. [PMID: 33949761 PMCID: PMC8358868 DOI: 10.1111/jcmm.16009] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [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: 09/14/2019] [Revised: 01/06/2020] [Accepted: 03/06/2020] [Indexed: 02/07/2023] Open
Abstract
Exosomal lncRNAs secreted by cancer cells can serve as potential biomarkers in the diagnosis and prognosis of various tumours. Here, we are committed to explore the diagnostic and prognostic value of serum exosomal XIST secreted by tumour cells to predict recurrence in patients with triple‐negative breast cancer (TNBC). Significant increments in XIST and exo‐XIST from tumour tissues and blood serum were found in reoccurring TNBC patients by comparison with non‐recurrences. Levels of serum exo‐XIST were only significantly increased in TNBC recurrence and no association with other clinicopathological parameters. Additionally, serum exo‐XIST levels could be served as an assessment of change in the load of triple‐negative breast cancer. Expressions of exo‐XIST were markedly decreased after resection of the primary breast tumours and obviously elevated at the time of recurrence. Finally, an obvious association was identified between serum exo‐XIST levels and a poorer overall survival (OS) in TNBC patients. Levels of serum exo‐XIST may serve as a diagnostic and prognostic biomarker to predict the recurrent TNBC‐loading status.
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Affiliation(s)
- Fengming Lan
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - Xiaodan Zhang
- Department of Radiation Oncology, PLA Airforce General Hospital, Beijing, China
| | - Huibing Li
- Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou, China
| | - Xiao Yue
- Department of Neurosurgery, Shenzhen University General Hospital, Shenzhen, China
| | - Qinghong Sun
- Shenzhen Woke Biomedical Technology Co., Ltd., Shenzhen, China
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Wang J, Yin G, Bian H, Yang J, Zhou P, Yan K, Liu C, Chen P, Zhu J, Li Z, Xue T. LncRNA XIST upregulates TRIM25 via negatively regulating miR-192 in hepatitis B virus-related hepatocellular carcinoma. Mol Med 2021; 27:41. [PMID: 33858324 PMCID: PMC8050905 DOI: 10.1186/s10020-021-00278-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 02/03/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Long non-coding RNA (lncRNA) XIST has been implicated in the progression of a variety of tumor diseases. The purpose of this study was to explore the molecular role of lncRNA XIST in human hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC). METHODS The expression levels of lncRNA XIST, miR-192 and TRIM25 in HBV-related HCC tissues and HepG2.2.15 cells were detected by qRT-PCR. Biological information and luciferin gene reporter assay were performed to detect the interaction among lncRNA XIST, miR-192 and TRIM25. CCk-8 assay, wound healing assay and colony formation assay were conducted to detect the proliferation and migration ability of HepG2.2.15 cells. RESULTS qRT-PCR results showed that the expression levels of lncRNA XIST were remarkably increased in HBV-related HCC tissues and HepG2.2.15 cells. In addition, miR-192 was a direct target gene of lncRNA XIST, and the expression of miR-192 and lncRNA XIST were negatively correlated. Moreover, overexpression of miR-192 observably inhibited the proliferation and migration of HCC cells, while overexpression of lncRNA XIST showed an opposite effect. Furthermore, TRIM25 was a direct target of miR-192, and lncRNA XIST could up-regulate the expression of TRIM25 by targeting miR-192. CONCLUSION LncRNA XIST could up-regulate the expression of TRIM25 by targeting and binding to miR-192, thus accelerating the occurrence and development of HCC.
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Affiliation(s)
- Jiancheng Wang
- The People's Hospital of Lianshui County, Huai'an City, 223400, Jiangsu Province, People's Republic of China
| | - Gang Yin
- Department of Intervention, The Second People's Hospital of Huai'an City, Huai'an City, 223002, Jiangsu Province, People's Republic of China
| | - Hu Bian
- Department of Pain and Intervention, Huaiyin Hospital of Huai'an City, Huai'an City, 223300, Jiangsu Province, People's Republic of China
| | - Jiangli Yang
- Department of Interventional Radiology, Huaian Hospital of Huai'an City, No. 161 Zhenhuailou East Road, Huai'an City, 223200, Jiangsu Province, People's Republic of China
| | - Pengcheng Zhou
- Department of Interventional Radiology, Huaian Hospital of Huai'an City, No. 161 Zhenhuailou East Road, Huai'an City, 223200, Jiangsu Province, People's Republic of China
| | - Kai Yan
- Department of Interventional Radiology, Huaian Hospital of Huai'an City, No. 161 Zhenhuailou East Road, Huai'an City, 223200, Jiangsu Province, People's Republic of China
| | - Cheng Liu
- Department of Interventional Radiology, Huaian Hospital of Huai'an City, No. 161 Zhenhuailou East Road, Huai'an City, 223200, Jiangsu Province, People's Republic of China
| | - Pei Chen
- Department of Interventional Radiology, Huaian Hospital of Huai'an City, No. 161 Zhenhuailou East Road, Huai'an City, 223200, Jiangsu Province, People's Republic of China
| | - Jun Zhu
- The Third People's Hospital of Yancheng City, No. 75 Juchang Road, Yancheng City, 224001, Jiangsu Province, People's Republic of China
| | - Zhi Li
- Department of Interventional Radiology, First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Soochow City, 215006, Jiangsu Province, People's Republic of China
| | - Tongqing Xue
- Department of Interventional Radiology, Huaian Hospital of Huai'an City, No. 161 Zhenhuailou East Road, Huai'an City, 223200, Jiangsu Province, People's Republic of China.
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Gong M, Wang X, Mu L, Wang Y, Pan J, Yuan X, Zhou H, Xing J, Wang R, Sun J, Liu Q, Zhang X, Wang L, Chen Y, Pei Y, Li S, Liu L, Zhao Y, Yuan Y. Steroid receptor coactivator-1 enhances the stemness of glioblastoma by activating long noncoding RNA XIST/miR-152/KLF4 pathway. Cancer Sci 2021; 112:604-618. [PMID: 33090636 PMCID: PMC7894023 DOI: 10.1111/cas.14685] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 09/25/2020] [Accepted: 10/06/2020] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma (GBM) recurrence is attributed to the presence of therapy-resistant glioblastoma stem cells. Steroid receptor coactivator-1 (SRC-1) acts as an oncogenic regulator in many human tumors. The relationship between SRC-1 and GBM has not yet been studied. Herein, we investigate the role of SRC-1 in GBM. In this study, we found that SRC-1 expression is positively correlated with grades of glioma and inversely correlated with glioma patient's prognosis. Steroid receptor coactivator-1 promotes the proliferation, migration, and tumor growth of GBM cells. Notably, SRC-1 knockdown suppresses the stemness of GBM cells. Mechanistically, long noncoding RNA X-inactive specific transcript (XIST) is regulated by SRC-1 at the posttranscriptional level and mediates the function of SRC-1 in promoting stemness-like properties of GBM. Steroid receptor coactivator-1 can promote the expression of Kruppel-like factor 4 (KLF4) through the XIST/microRNA (miR)-152 axis. Additionally, arenobufagin and bufalin, SRC small molecule inhibitors, can reduce the proliferation and stemness of GBM cells. This study reveals SRC-1 promotes the stemness of GBM by activating the long noncoding RNA XIST/miR-152/KLF4 pathway and provides novel markers for diagnosis and therapy of GBM.
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Affiliation(s)
- Miaomiao Gong
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Xun Wang
- Department of NeurosurgeryThe Third People’s Hospital of DalianDalianChina
| | - Lin Mu
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Yueyue Wang
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Jinjin Pan
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Xiaocheng Yuan
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Haoran Zhou
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Jinshan Xing
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Rui Wang
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Jian Sun
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Qiwang Liu
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Xiya Zhang
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Lin Wang
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Yiying Chen
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Yandong Pei
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Shao Li
- College of Basic Medical SciencesDalian Medical UniversityDalianChina
| | - Liang Liu
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
| | - Yongshun Zhao
- The First Affiliated HospitalDalian Medical UniversityDalianChina
| | - Yuhui Yuan
- The Second Affiliated HospitalInstitute of Cancer Stem CellDalian Medical UniversityDalianChina
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20
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Liu H, Wang YW, Chen WD, Dong HH, Xu YJ. Iron accumulation regulates osteoblast apoptosis through lncRNA XIST/miR-758-3p/caspase 3 axis leading to osteoporosis. IUBMB Life 2021; 73:432-443. [PMID: 33336851 DOI: 10.1002/iub.2440] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/18/2022]
Abstract
Postmenopausal osteoporosis (PMOP) is mainly caused by multiple factors. Recent studies have suggested that iron accumulation (IA) was closely related to PMOP. However, the detailed molecular mechanisms have not been well demonstrated. We constructed the IA mouse model by intraperitoneal injections of ferric ammonium citrate (FAC) and cell model by culturing with the medium containing FAC. Osteoporosis was confirmed in mouse bone tissues using H&E staining, and the level of serum ferritin, alkaline phosphatase (ALP), procollagen-1 N-terminal peptide (P1NP), and osteocalcin in mice was examined by ELISA. The expressions of XIST and miR-758-3p were detected by qRT-PCR. Cell proliferation and apoptosis were measured by CCK-8, TUNEL, and flow cytometry. The expression levels of apoptotic-related proteins were evaluated by western blot. Dual luciferase reporter assay was used to examine the molecular interaction. The expressions of ALP, P1NP, and osteocalcin, and the H&E staining of bone tissues in mice were analyzed to confirm the biological function of XIST and miR-758-3p in vivo. XIST was up-regulated while miR-758-3p was down-regulated in IA mouse and cell models. XIST knockdown significantly reduced FAC-induced osteoblast apoptosis, which was mimicked by transfection with miR-758-3p mimics. XIST acted as a sponge of miR-758-3p, which targeted caspase 3. IA led to the high expression of XIST and promoted osteoblast apoptosis through miR-758-3p/caspase 3. Transfection with shXIST or miR-758-3p mimics alleviated IA-induced mouse osteoporosis. IA regulated osteoblast apoptosis through XIST/miR-758-3p/caspase 3 axis, which might provide alternative targets for the treatment of osteoporosis.
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Affiliation(s)
- Hu Liu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China.,Department of Orthopedics, Yancheng Third People's Hospital, Yancheng, China
| | - Yu-Wu Wang
- Department of Orthopedics, Yancheng Third People's Hospital, Yancheng, China
| | - Wei-Dong Chen
- Department of Orthopedics, Yancheng Third People's Hospital, Yancheng, China
| | - Hong-Hua Dong
- Department of Orthopedics, Yancheng Third People's Hospital, Yancheng, China
| | - You-Jia Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, China
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21
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Zhou Q, Zhang MM, Liu M, Tan ZG, Qin QL, Jiang YG. LncRNA XIST sponges miR-199a-3p to modulate the Sp1/LRRK2 signal pathway to accelerate Parkinson's disease progression. Aging (Albany NY) 2021; 13:4115-4137. [PMID: 33494069 PMCID: PMC7906184 DOI: 10.18632/aging.202378] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [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: 12/11/2019] [Accepted: 09/14/2020] [Indexed: 02/06/2023]
Abstract
In vitro and in vivo models of Parkinson’s disease were established to investigate the effects of the lncRNA XIST/miR-199a-3p/Sp1/LRRK2 axis. The binding between XIST and miR-199a-3p as well as miR-199a-3p and Sp1 were examined by luciferase reporter assay and confirmed by RNA immunoprecipitation analysis. Following the Parkinson’s disease animal behavioural assessment by suspension and swim tests, the brain tissue injuries were evaluated by hematoxylin and eosin, TdT-mediated dUTP-biotin nick end labelling, and tyrosine hydroxylase stainings. The results indicated that miR-199a-3p expression was downregulated, whereas that of XIST, Sp1 and LRRK2 were upregulated in Parkinson’s disease. Moreover, miR-199a-3p overexpression or XIST knockdown inhibited the cell apoptosis induced by MPP+ treatment and promoted cell proliferation. The neurodegenerative defects were significantly recovered by treating the cells with shXIST or shSp1, whereas miR-199a-3p inhibition or Sp1 and LRRK2 overexpression abrogated these beneficial effects. Furthermore, the results of our in vivo experiments confirmed the neuroprotective effects of shXIST and miR-199a-3p against MPTP-induced brain injuries, and the Parkinson’s disease behavioural symptoms were effectively alleviated upon shXIST or miR-199a-3p treatment. In summary, the results of the present study showed that lncRNA XIST sponges miR-199a-3p to modulate Sp1 expression and further accelerates Parkinson’s disease progression by targeting LRRK2.
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Affiliation(s)
- Qian Zhou
- Department of Neurosurgery, Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, P.R. China
| | - Ming-Ming Zhang
- Department of Neurosurgery, Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, P.R. China
| | - Min Liu
- Department of Neurosurgery, Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, P.R. China
| | - Zhi-Gang Tan
- Department of Neurosurgery, Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, P.R. China
| | - Qi-Lin Qin
- Department of Neurosurgery, Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, P.R. China
| | - Yu-Gang Jiang
- Department of Neurosurgery, Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, P.R. China
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22
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Hao YQ, Liu KW, Zhang X, Kang SX, Zhang K, Han W, Li L, Li ZH. GINS2 was regulated by lncRNA XIST/miR-23a-3p to mediate proliferation and apoptosis in A375 cells. Mol Cell Biochem 2021; 476:1455-1465. [PMID: 33389496 DOI: 10.1007/s11010-020-04007-y] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/26/2020] [Indexed: 10/22/2022]
Abstract
Melanoma ranks second in aggressive tumors, and the occurrence of metastasis in melanoma results in a persistent drop in the survival rate of patients. Therefore, it is very necessary to find a novel therapeutic method for treating melanoma. It has been reported that lncRNA XIST could promote the tumorigenesis of melanoma. However, the mechanism by which lncRNA XIST regulates the progression of melanoma remains unclear. The proliferation of A375 cells was measured by clonal formation. Cell viability was detected by MTT assay. Flow cytometry was performed to detect cell apoptosis and cycle. The level of GINS2, miR-23a-3p, and lncRNA XIST was investigated by qRT-PCR. Protein level was detected by Western blot, and the correctness of prediction results was confirmed by Dual luciferase. In present study, GINS2 and lncRNA XIST were overexpressed in melanoma, while miR-23a-3p was downregulated. Silencing of GINS2 or overexpression of miR-23a-3p reversed cell growth and promoted apoptosis in A375 cells. Mechanically, miR-23a-3p directly targeted GINS2, and XIST regulated GINS2 level though mediated miR-23a-3p. Moreover, XIST exerted its function on cell proliferation, cell viability, and promoted the cell apoptosis of A375 cells though miR-23a-3p/GINS2 axis. LncRNA XIST significantly promoted the tumorigenesis of melanoma via sponging miR-23a-3p and indirectly targeting GINS2, which can be a potential new target for treating melanoma.
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Affiliation(s)
- Yu-Qin Hao
- Department of Dermatology, Peking University Third Hospital, Beijing, 100191, People's Republic of China.,Department of Dermatology, Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, 014010, People's Republic of China
| | - Ke-Wei Liu
- Department of Dermatology, Mental Health Center of Inner Mongolia Autonomous Region, Hohhot, 010000, People's Republic of China
| | - Xin Zhang
- Department of Dermatology, Halison International Peace Hospital, Hengshui, 053000, People's Republic of China
| | - Shu-Xia Kang
- Department of Dermatology, People's Hospital Affiliated to Inner Mongolia Medical University, Hohhot, 010000, People's Republic of China
| | - Kun Zhang
- Department of Hematology, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014010, People's Republic of China
| | - Wurihan Han
- Inner Mongolia Medical University, Hohhot, 010000, People's Republic of China
| | - Li Li
- Inner Mongolia Medical University, Hohhot, 010000, People's Republic of China
| | - Zhe-Hai Li
- Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, People's Republic of China.
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23
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Zhu Y, Li R, Wen LM. Long non-coding RNA XIST regulates chondrogenic differentiation of synovium-derived mesenchymal stem cells from temporomandibular joint via miR-27b-3p/ADAMTS-5 axis. Cytokine 2021; 137:155352. [PMID: 33128918 DOI: 10.1016/j.cyto.2020.155352] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/10/2020] [Accepted: 10/16/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Temporomandibular joint osteoarthritis (TMJOA) is a common degenerative disease in jaw joint, accompanied by articular cartilage destruction. Differentiation of stem cells to cartilage has important therapeutic implications in TMJ cartilage repair. Previous studies revealed that lncRNA XIST participated in various biological processes. However, the effect of XIST on chondrogenic differentiation of synovium-derived mesenchymal stem cells (SMSCs) remains unclear. Our study aimed to investigate the function of XIST in chondrogenic differentiation of human SMSCs from TMJ. METHODS Alcian blue staining was performed to determine proteoglycan in SMSCs. qPCR, western blotting and immunofluorescence assays were allowed to assess sex determining region Y-box 9 (SOX9), Collagen type II alpha 1 chain (COL2A1) and Aggrecan (ACAN) expression. The direct interaction between miR-27b-3p and XIST or ADAMTS-5 was confirmed by dual luciferase reporter assay or RNA immunoprecipitation (RIP) assay. RESULTS XIST was remarkably down-regulated in chondrogenic differentiation of SMSCs. Functional analysis demonstrated that XIST silencing promoted chondrogenic differentiation of SMSCs. Dual luciferase reporter and RIP assays identified that XIST acted as a sponge for miR-27b-3p. Moreover, XIST regulated ADAMTS-5 expression by directly binding miR-27b-3p. More importantly, miR-27b-3p/ADAMTS-5 rescued the effects of XIST on chondrogenic differentiation of SMSCs. CONCLUSION The results suggest that XIST modulates SMSCs chondrogenic differentiation via the miR-27b-3p/ADAMTS-5 axis, which provides new targets for TMJOA treatment.
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Du YL, Liang Y, Cao Y, Liu L, Li J, Shi GQ. LncRNA XIST Promotes Migration and Invasion of Papillary Thyroid Cancer Cell by Modulating MiR-101-3p/CLDN1 Axis. Biochem Genet 2020; 59:437-452. [PMID: 33057875 DOI: 10.1007/s10528-020-09985-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/25/2020] [Indexed: 11/30/2022]
Abstract
Papillary thyroid carcinoma (PTC) is the most common endocrine malignancy in the worlds. Long non-coding RNA X-inactive specific transcript (XIST) was found to upregulate in PTC tissues and cell lines. However, the molecular mechanism underlying PTC metastasis and whether XIST plays regulatory role in PTC are still largely unknown. qRT-PCR was performed to detect the expression of lncRNA XIST and mRNAs. Western blotting was carried out to detect CLDN1, MMP2, and MMP9. Transwell assay was used to detect migration and invasion. Starbase bioinformatics prediction and luciferase assay were used to validate the relationship of miR-101-3p and XIST or CLDN1. LncRNA XIST was upregulated in PTC tissues and cells. XIST knockdown suppressed migration and invasion of PTC cells. XIST could directly bind with miR-101-3p. Overexpression of miR-101-3p suppressed migration and invasion of PTC cells. CLDN1 was the target of miR-101-3p, and overexpression of CLDN1 can reverse the inhibition of cell migration and invasion by miR-101-3p, What's more, miR-101-3p inhibition and CLDN1 overexpression can reverse the affection of sh-XIST on migration and invasion of PTC cells inhibition. XIST promotes migration and invasion of papillary thyroid cancer cell via directly regulating miR-101-3p/CLDN1 axis, which is a novel mechanistic of XIST in the regulation of PTC.
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Affiliation(s)
- Yong-Liang Du
- Nuclear Medicine Department, The Third Xiangya Hospital of Central South University, No.137 Tongzipo Road, Yuelu District, Changsha, 410013, Hunan, People's Republic of China
| | - Yan Liang
- Nuclear Medicine Department, The Third Xiangya Hospital of Central South University, No.137 Tongzipo Road, Yuelu District, Changsha, 410013, Hunan, People's Republic of China
| | - Yan Cao
- Nuclear Medicine Department, The Third Xiangya Hospital of Central South University, No.137 Tongzipo Road, Yuelu District, Changsha, 410013, Hunan, People's Republic of China
| | - Le Liu
- Nuclear Medicine Department, The Third Xiangya Hospital of Central South University, No.137 Tongzipo Road, Yuelu District, Changsha, 410013, Hunan, People's Republic of China
| | - Jian Li
- Nuclear Medicine Department, The Third Xiangya Hospital of Central South University, No.137 Tongzipo Road, Yuelu District, Changsha, 410013, Hunan, People's Republic of China.
| | - Guang-Qing Shi
- Nuclear Medicine Department, The Third Xiangya Hospital of Central South University, No.137 Tongzipo Road, Yuelu District, Changsha, 410013, Hunan, People's Republic of China.
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25
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Hai B, Pan X, Du C, Mao T, Jia F, Liu Y, Ma Y, Liu X, Zhu B. LncRNA XIST Promotes Growth of Human Chordoma Cells by Regulating miR-124-3p/iASPP Pathway. Onco Targets Ther 2020; 13:4755-4765. [PMID: 32547104 PMCID: PMC7266409 DOI: 10.2147/ott.s252195] [Citation(s) in RCA: 13] [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: 12/14/2022] Open
Abstract
Introduction Chordoma is a malignant primary bone tumor that is found in the spine and skull. X-inactive specific transcript (XIST) is a long non-coding RNA (lncRNA) is known to be involved in the development of various cancers, but its precise function and mechanism in human chordoma have not been elucidated. Here, we investigated the role of lncRNA XIST in chordoma progression. Methods Quantitative real time-polymerase chain reaction (qRT-PCR) was performed to determine lncRNA XIST expression in human chordoma tissues and matched-noncancerous tissues. Western blot was used to determine protein expression. Silencing and overexpression of lncRNA XIST were carried out by RNA interference (RNAi) and lentiviral transduction, respectively. Cell Counting Kit-8 (CCK-8) assay and flow cytometry were employed to examine the effects of lncRNA XIST on growth of human chordoma cells. Lastly, the role of lncRNA XIST in vivo was explored using a xenograft model. Results We found that lncRNA XIST expression was upregulated in chordoma and strongly correlated with poor patient prognosis. Moreover, lncRNA XIST promoted proliferation and inhibited apoptosis of chordoma cells. Mechanistically, upregulation of lncRNA XIST led to a decrease in miR-124-3p expression, thereby promoting the expression of the miR-124-3p target gene, inhibitor of apoptosis-stimulating protein of p53 (iASPP). Addition of miR-124-3p inhibitor or mimic reversed the effects induced by lncRNA XIST silencing or overexpression on chordoma cell proliferation. Lastly, using a xenograft mouse model, we found that silencing of lncRNA XIST decreased tumorigenicity in vivo, as shown by increased tumor cell apoptosis. Conclusion Our findings demonstrate a key role for lncRNA XIST in chordoma progression by regulating miR124-3p/iAPSS pathway.
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Affiliation(s)
- Bao Hai
- Department of Orthopedics, Peking University Third Hospital, Beijing, People's Republic of China
| | - Xiaoyu Pan
- Department of Orthopedics, Peking University Third Hospital, Beijing, People's Republic of China
| | - Chuanchao Du
- Department of Orthopedics, Peking University Third Hospital, Beijing, People's Republic of China
| | - Tianli Mao
- Department of Orthopedics, Peking University Third Hospital, Beijing, People's Republic of China
| | - Fei Jia
- Department of Orthopedics, Peking University Third Hospital, Beijing, People's Republic of China
| | - Yu Liu
- Department of Orthopedics, Peking University Third Hospital, Beijing, People's Republic of China
| | - Yunlong Ma
- The Center for Pain Medicine, Peking University Third Hospital, Beijing, People's Republic of China
| | - Xiaoguang Liu
- Department of Orthopedics, Peking University Third Hospital, Beijing, People's Republic of China.,The Center for Pain Medicine, Peking University Third Hospital, Beijing, People's Republic of China
| | - Bin Zhu
- The Center for Pain Medicine, Peking University Third Hospital, Beijing, People's Republic of China
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26
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Tang B, Li W, Ji T, Li X, Qu X, Feng L, Zhu Y, Qi Y, Zhu C, Bai S. Downregulation of XIST ameliorates acute kidney injury by sponging miR-142-5p and targeting PDCD4. J Cell Physiol 2020; 235:8852-8863. [PMID: 32347551 DOI: 10.1002/jcp.29729] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 04/13/2020] [Indexed: 12/15/2022]
Abstract
Acute kidney injury (AKI) is a common kidney disease that markedly affects public health. To date, the roles of long noncoding RNA XIST in AKI are poorly understood. Here, we investigated the biological functions of XIST in AKI. We observed that XIST expression increased in patients with AKI and HK-2 cells stimulated by CoCl2 . In addition, a rat AKI model induced by ischemia-reperfusion was established. Tumor necrosis factor-α, interleukin-6, and cyclooxygenase-2 messenger RNA expression were induced in vivo; moreover, XIST expression was upregulated. Knockdown of XIST significantly repressed CoCl2 -triggered injury in HK-2 cells. However, microRNA (miR)-142-5p, a downstream target of XIST, was downregulated in AKI. miR-142-5p was repressed by XIST and miR-142-5p could inhibit CoCl2 -induced injury in HK-2 cells. Moreover, PDCD4 expression was significantly increased in AKI. PDCD4 was predicted to be the target of miR-142-5p. Subsequently, loss of PDCD4 was able to retard injury in HK-2 cells exposed to CoCl2. Thus, we suggest that XIST regulates miR-142-5p and PDCD4, and it has the potential to function as a biomarker in therapeutic strategies for AKI.
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Affiliation(s)
- Bo Tang
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Weiliang Li
- Department of Urology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Tingting Ji
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Xiaoying Li
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Xiaolei Qu
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Linhong Feng
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Yingchun Zhu
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Yinghui Qi
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Chun Zhu
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Shoujun Bai
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
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Lin B, Xu J, Wang F, Wang J, Zhao H, Feng D. LncRNA XIST promotes myocardial infarction by regulating FOS through targeting miR-101a-3p. Aging (Albany NY) 2020; 12:7232-7247. [PMID: 32315985 PMCID: PMC7202499 DOI: 10.18632/aging.103072] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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] [Received: 06/12/2019] [Accepted: 03/24/2020] [Indexed: 12/14/2022]
Abstract
The purpose of this study was to reveal the hypothesis that lncRNA X inactive specific transcript (XIST) can participate in the regulation of cardiomyocyte apoptosis in neonatal mice cardiomyocytes (NMCMs) and myocardial infarction (MI) through targeting miR-101a-3p. NMCMs were isolated from neonatal C57BL/6 mice and anoxia was induced in hypoxic chamber. MTT assay and flow cytometry were used to determine proliferation and apoptosis respectively. The target relationship among XIST, miR-101a-3p and FOS was revealed by bioinformatic analysis, luciferase reporter assay, pull-down assay and RNA immunoprecipitation assay. The expression of XIST, miR-101a-3p, FOS and apoptosis-related proteins was determined by qRT-PCR or western blot. MI model was constructed to reveal the role of XIST. We found that XIST was up-regulated in NMCMs under anoxia condition. Moreover, XIST increased FOS expression by sponging miR-101a-3p in anoxia cells. Silencing XIST expression improved cell viability and suppressed apoptosis in vitro and inhibited myocardial infarction by reducing the level of c-FOS and apoptosis-related proteins in vivo. Our findings suggest that XIST is involved in MI, modulation of its level can be used as a new strategy or potential target in the treatment of myocardial infarction.
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Affiliation(s)
- Bin Lin
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Jing Xu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Feng Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Jiaxiang Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Hui Zhao
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Deguang Feng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
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Li M, Pan M, You C, Zhao F, Wu D, Guo M, Xu H, Shi F, Zheng D, Dou J. MiR-7 reduces the BCSC subset by inhibiting XIST to modulate the miR-92b/Slug/ESA axis and inhibit tumor growth. Breast Cancer Res 2020; 22:26. [PMID: 32143670 PMCID: PMC7060548 DOI: 10.1186/s13058-020-01264-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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] [Received: 11/08/2019] [Accepted: 02/26/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Breast cancer stem cells (BCSCs) are typically seed cells of breast tumor that initiate and maintain tumor growth. MiR-7, as a cancer inhibitor, decreases the BCSC subset and inhibits tumor progression through mechanisms that remain unknown. METHODS We examined miR-7 expression in breast cancer and developed a BCSC-driven xenograft mouse model, to evaluate the effects of miR-7 overexpression on the decrease of the BCSC subset in vitro and in vivo. In addition, we determined how miR-7 decreased the BCSC subset by using the ALDEFLUOR, lentivirus infection, dual-luciferase reporter, and chromatin immunoprecipitation-PCR assays. RESULTS MiR-7 was expressed at low levels in breast cancer tissues compared with normal tissues, and overexpression of miR-7 directly inhibited lncRNA XIST, which mediates the transcriptional silencing of genes on the X chromosome, and reduced epithelium-specific antigen (ESA) expression by increasing miR-92b and inhibiting slug. Moreover, miR-7 suppressed CD44 and ESA by directly inhibiting the NF-κB subunit RELA and slug in breast cancer cell lines and in BCSC-driven xenografts, which confirmed the antitumor activity in mice injected with miR-7 agomir or stably infected with lenti-miR-7. CONCLUSIONS The findings from this study uncover the molecular mechanisms by which miR-7 inhibits XIST, modulates the miR-92b/Slug/ESA axis, and decreases the RELA and CD44 expression, resulting in a reduced BCSC subset and breast cancer growth inhibition. These findings suggest a potentially targeted treatment approach to breast cancer.
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Affiliation(s)
- Miao Li
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, 87 Ding Jiaqiao Rd., Nanjing, 210009, China
| | - Meng Pan
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, 87 Ding Jiaqiao Rd., Nanjing, 210009, China.,Jiangsu Province Hospital, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Chengzhong You
- Department of General Surgery, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Fengshu Zhao
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, 87 Ding Jiaqiao Rd., Nanjing, 210009, China
| | - Di Wu
- Department of Gynecology & Obstetrics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Mei Guo
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, 87 Ding Jiaqiao Rd., Nanjing, 210009, China
| | - Hui Xu
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, 87 Ding Jiaqiao Rd., Nanjing, 210009, China
| | - Fangfang Shi
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, 210009, China
| | - Danfeng Zheng
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, 87 Ding Jiaqiao Rd., Nanjing, 210009, China
| | - Jun Dou
- Department of Pathogenic Biology and Immunology, School of Medicine, Southeast University, 87 Ding Jiaqiao Rd., Nanjing, 210009, China.
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Liao X, Tang D, Yang H, Chen Y, Chen D, Jia L, Yang L, Chen X. Long Non-coding RNA XIST May Influence Cervical Ossification of the Posterior Longitudinal Ligament Through Regulation of miR-17-5P/AHNAK/BMP2 Signaling Pathway. Calcif Tissue Int 2019; 105:670-680. [PMID: 31511959 DOI: 10.1007/s00223-019-00608-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 05/23/2019] [Accepted: 08/23/2019] [Indexed: 12/25/2022]
Abstract
Long non-coding RNAs (lncRNAs) play an important role in the development of bone-related diseases. This study was conducted to investigate the role and mechanism of lncRNA X inactive specific transcript (XIST) in the occurrence of cervical ossification of the posterior longitudinal ligament (OPLL). Here, primary human ligament fibroblasts cells (LFCs) were isolated from 30 cases of OPLL and 30 normal cervical posterior longitudinal ligament (non-OPLL) tissues to perform the qPCR and Western blot assay. We found that the mRNA level of lncRNA XIST was significantly increased in OPLL LFCs compared to non-OPLL LFCs. By bioinformatics analysis, we found that lncRNA XIST has four binding sites for miR-17-5p and found that the mRNA level of miR-17-5p was also significantly decreased in OPLL LFCs compared to non-OPLL LFCs. Since AHNAK is the target gene of miR-17-5p, we further found that the expression of AHNAK was significantly reduced in non-OPLL LFCs after being transfected with miR-17-5p mimic. The qPCR results showed that the mRNA expressions of BMP2 and Runx2 were significantly decreased. After being transfected with lncRNA XIST siRNA in the non-OPLL LFCs, the mRNA levels of lncRNA XIST, AHNAK, BMP2, and Runx2 were significantly decreased and the phosphorylated protein of Smad1/5/8 was reduced. After being cultured by mechanical vibration, the mRNA levels of lncRNA XIST, AHNAK, BMP2, Runx2, COL1, OC, OPN, and Phospho1 were significantly increased, but the mRNA expression of miR-17-5p was significantly decreased. The expression of phosphorylated Smad1/5/8 protein was also significantly increased. Together, this study was the first to determine that XIST gene inhibition plays an important role in the occurrence of cervical OPLL, through the mechanism of regulation of miR-17-5P/AHNAK/BMP2 signaling pathway. Thus, XIST may be a potential target that could be modulated for the treatment of cervical OPLL.
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Affiliation(s)
- Xinyuan Liao
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Dezhi Tang
- Institute of Spine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
| | - Haisong Yang
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Yu Chen
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Deyu Chen
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Lianshun Jia
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Lili Yang
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China.
| | - Xiongsheng Chen
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China.
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Yue D, Guanqun G, Jingxin L, Sen S, Shuang L, Yan S, Minxue Z, Ping Y, Chong L, Zhuobo Z, Yafen W. Silencing of long noncoding RNA XIST attenuated Alzheimer's disease-related BACE1 alteration through miR-124. Cell Biol Int 2019; 44:630-636. [PMID: 31743528 DOI: 10.1002/cbin.11263] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [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: 06/26/2019] [Accepted: 11/14/2019] [Indexed: 12/31/2022]
Abstract
Alzheimer's disease (AD) is a chronic progressive neurodegenerative disorder. However, its pathogenetic mechanism is still poorly understood. An increasing number of studies have evidenced the important role of long noncoding RNAs (lncRNAs) in AD. The aim of the current study was to investigate the effect and molecular mechanism of the lncRNA X-inactive specific transcript (XIST) in AD. Bilateral common carotid artery occlusion (2VO) was used to induce an AD model in mice. Hydrogen peroxide (H2 O2 ) was used to induce an AD model in N2a cells. The lncRNA XIST, miR-124, and BACE1 messenger RNA expression levels were detected by a real-time polymerase chain reaction. The BACE1 protein expression level was detected by western blot and immunofluorescence assay. The Aβ1-42 expression level was detected using an enzyme-linked immunosorbent assay kit. The expression level of lncRNA XIST was significantly upregulated in AD models, both in vivo and in vitro. Silencing of lncRNA XIST negatively regulated miR-124 and positively regulated BACE1 expression in N2a cells, which is attenuated by cotransfection of anti-miR-124 oligodeoxyribonucleotide (AMO-124). Silencing of lncRNA XIST reversed the effect of H2 O2 on miR-124, BACE1, and Aβ1-42 expression in N2a cells, which was reversed by cotransfection of AMO-124. Silencing of lncRNA XIST attenuated AD-related BACE1 alteration through miR-124. LncRNA XIST may be a new potential target for the treatment of AD.
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Affiliation(s)
- Du Yue
- Harbin Medical University Fourth Hospital, Neurology, Harbin, 150001, China
| | - Gao Guanqun
- Harbin Medical University Fourth Hospital, Neurology, Harbin, 150001, China
| | - Li Jingxin
- Heilongjiang Provincial Hospital, Neurology, Harbin, Heilongjiang, 150030, China
| | - Suo Sen
- Harbin Medical University Fourth Hospital, Neurology, Harbin, 150001, China
| | - Liu Shuang
- Heilongjiang Provincial Hospital, Neurology, Harbin, Heilongjiang, 150030, China
| | - Sun Yan
- Harbin Medical University Fourth Hospital, Neurology, Harbin, 150001, China
| | - Zhang Minxue
- Harbin Medical University Fourth Hospital, Neurology, Harbin, 150001, China
| | - Yin Ping
- Heilongjiang Provincial Hospital, Neurology, Harbin, Heilongjiang, 150030, China
| | - Lu Chong
- Heilongjiang Provincial Hospital, Neurology, Harbin, Heilongjiang, 150030, China
| | - Zhang Zhuobo
- Harbin Medical University Fourth Hospital, Neurology, Harbin, 150001, China
| | - Wei Yafen
- Heilongjiang Provincial Hospital, Neurology, Harbin, Heilongjiang, 150030, China
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Li Z, Zhang Y, Ding N, Zhao Y, Ye Z, Shen L, Yi H, Zhu Y. Inhibition of lncRNA XIST Improves Myocardial I/R Injury by Targeting miR-133a through Inhibition of Autophagy and Regulation of SOCS2. Mol Ther Nucleic Acids 2019; 18:764-773. [PMID: 31734557 PMCID: PMC6861669 DOI: 10.1016/j.omtn.2019.10.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/26/2019] [Accepted: 10/04/2019] [Indexed: 12/14/2022]
Abstract
The objective of this study was to investigate the role of lncRNA XIST and its relationship with miR-133a in myocardial I/R injury. H9C2 cells treated by hypoxia/reoxygenation (H/R) were used to establish an in vitro I/R model. The small interfering RNA (siRNA) for XIST and miR-133 mimics, inhibitor, and suppressor of cytokine signaling (SOCS2) recombinant plasmids were used to transfect the cells. Cell apoptosis was determined by flow cytometry analysis, and cell viability was used for 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide, Thiazolyl Blue Tetrazolium Bromide (MTT) assay. The dual-luciferase reporter assay was performed to confirm binding between XIST and miR-133a, as well as miR-133a and SOCS2. To inhibit or overexpress XIST, miR-133a, or SOCS2 in I/R mice, we used recombinant lentivirus vectors and adenovirus vectors for tail vein injection. The expression of XIST, miR-133a, and SOCS2 was determined by quantitative real-time PCR, and LC3 I/II and Beclin1 was determined by western blotting. The expression of XIST and SOCS2 was significantly upregulated, whereas the miR-133a level was remarkably downregulated in both H/R H9C2 cells and I/R mice myocardial tissues. In both H/R H9C2 cells and I/R mice, the inhibition of XIST led to decreased apoptosis and autophagy, and inhibition of miR-133a reversed these effects. Similarly, overexpression of miR-133a resulted in reduced apoptosis and autophagy, which were reversed by overexpression of SOCS2. The inhibition of XIST and overexpression of miR-133a also promote cell viability of H/R cells. The dual-luciferase reporter assay significantly showed that XIST directly targeted on miR-133a, and miR-133a directly targeted on SOCS2. The inhibition of XIST could improve myocardial I/R injury by regulation of the miR-133a/SOCS2 axis and inhibition of autophagy.
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Affiliation(s)
- Zhiqiang Li
- Department of Cardiovascular Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yaping Zhang
- Department of Heart Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Nan Ding
- Department of Cardiovascular Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yudong Zhao
- Department of Cardiovascular Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Zankai Ye
- Department of Cardiovascular Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Lei Shen
- Department of Cardiovascular Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Hanlu Yi
- Department of Cardiovascular Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yaobin Zhu
- Department of Cardiovascular Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China.
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Zhou K, Li S, Du G, Fan Y, Wu P, Sun H, Zhang T. LncRNA XIST depletion prevents cancer progression in invasive pituitary neuroendocrine tumor by inhibiting bFGF via upregulation of microRNA-424-5p. Onco Targets Ther 2019; 12:7095-7109. [PMID: 31564894 PMCID: PMC6730611 DOI: 10.2147/ott.s208329] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 03/11/2019] [Accepted: 07/30/2019] [Indexed: 12/18/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) are vital mediators in human cancers including pituitary neuroendocrine tumor (PitNET) and could function as competing endogenous RNAs (ceRNAs) of microRNAs (miRNAs). The main objective of this study is to identify effect of lncRNA X-inactive specific transcript (XIST) and microRNA-424-5p (miR-424-5p) on PitNET. Methods Microarray analysis was employed to identify the PitNET-related differentially expressed lncRNAs. PitNET tissues, including both invasive and non-invasive subtypes in parallel with normal pituitary tissues were collected for the determination of the expression of XIST, miR-424-5p and basic fibroblast growth factor (bFGF) and the interaction among them. Subsequently, the expression of XIST, miR-424-5p and bFGF in PitNET cells was altered to elucidate their biological significance in the aspects of proliferation, migration, invasion, and the apoptosis. Results Both XIST and bFGF exhibited high expression, but miR-424-5p had a low expression in invasive PitNET tissues as compared to non-invasive PitNET normal pituitary tissues. Additionally, XIST competitively bound to miR-424-5p to elevate the expression of bFGF. Furthermore, depleted XIST or bFGF, or elevated miR-424-5p was revealed to suppress the proliferation, migration, invasion, and promote cell cycle arrest and apoptosis of invasive PitNET cells. miR-424-5p repressed the proliferation, migration, invasion of invasive PitNET cells by targeting bFGF. Conclusion In conclusion, the fundamental findings of the present study suggested that the functional suppression of XIST downregulated bFGF to inhibit the development of PitNET by increasing miR-424-5p expression, proposing XIST as a novel therapeutic target for PitNET.
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Affiliation(s)
- Kai Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, People's Republic of China
| | - Shaoshan Li
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, People's Republic of China
| | - Guojia Du
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, People's Republic of China
| | - Yandong Fan
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, People's Republic of China
| | - Pengfei Wu
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, People's Republic of China
| | - Hongjie Sun
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, People's Republic of China
| | - Tingrong Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, People's Republic of China
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Zhang Y, Zhu Z, Huang S, Zhao Q, Huang C, Tang Y, Sun C, Zhang Z, Wang L, Chen H, Chen M, Ju W, He X. lncRNA XIST regulates proliferation and migration of hepatocellular carcinoma cells by acting as miR-497-5p molecular sponge and targeting PDCD4. Cancer Cell Int 2019; 19:198. [PMID: 31384173 PMCID: PMC6664491 DOI: 10.1186/s12935-019-0909-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [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: 02/16/2019] [Accepted: 07/15/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) play a pivotal role in hepatocellular carcinoma (HCC) progression and have been confirmed to participate in the carcinogenesis and development of HCC. However, the relationship between miR-497-5p and HCC remains unclear. METHODS Kaplan-Meier curve analysis and the log-rank test were used to investigate the efficacy of miR-497-5p on overall survival (OS) and disease-free survival (DFS) in patients with HCC. According to in vitro experiments, programmed cell death 4 (PDCD4) was a target of miR-497-5p by the dual-luciferase activity assay. The efficacy of PDCD4 on cell proliferation and metastasis in HCC was examined by transwell assays, CCK-8 assays and reverse transcription quantitative PCR (RT-qPCR). Additionally, we conducted a luciferase activity reporter assay to confirm the interaction between lncRNA XIST and miR-49-5p. Then, to evaluate the relationship between lncRNA XIST and miR-497-5p, several mechanistic experiments, including qRT-PCR, Western blotting, transwell assays and tumor xenograft assays, were performed. RESULTS miR-497-5p was upregulated in HCC tissues, and high expression of miR-497-5p resulted in increases in tumor size and tumor number and a higher tumor-node-metastasis (TNM) stage and Edmondson grade in patients with HCC. Silencing miR-497-5p inhibited the proliferation and migration of HCC cells. PDCD4, which was downregulated in HCC tissues, was shown to be a target of miR-497-5p and was negatively correlated with the expression of miR-497-5p. lncRNA XIST was found to act as a miR-497-5p sponge and to regulate the level of PDCD4, which is targeted by miR-497-5p. lncRNA XIST was observed to be downregulated in the HCC tissues and positively correlated with the expression of PDCD4. CONCLUSIONS Our findings reveal that the XIST/miR-497-5p/PDCD4 axis participates in HCC development and that XIST could be used as a biomarker of HCC.
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Affiliation(s)
- Yixi Zhang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Zebin Zhu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
- Organ Transplant Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001 Anhui China
| | - Shanzhou Huang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
- Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qiang Zhao
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Changjun Huang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Yunhua Tang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Chengjun Sun
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Zhiheng Zhang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Linhe Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Huadi Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Maogen Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Weiqiang Ju
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Xiaoshun He
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan Er Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China
- Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
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Wang S, Cao F, Gu X, Chen J, Xu R, Huang Y, Ying L. LncRNA XIST, as a ceRNA of miR-204, aggravates lipopolysaccharide-induced acute respiratory distress syndrome in mice by upregulating IRF2. Int J Clin Exp Pathol 2019; 12:2425-2434. [PMID: 31934069 PMCID: PMC6949564] [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] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 05/22/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Acute respiratory distress syndrome (ARDS) is a common clinical syndrome with high a mortality rate, which is associated with diffuse alveolar injury and capillary endothelial damage. In recent years, numerous studies have been performed to explore the roles of long non-coding RNAs (lncRNAs) in various diseases in which lncRNA serves as a microRNA (miRNA) sponge to regulate targeted gene expression. However, whether lncRNAs participate in ARDS progression remains unclear. MATERIALS/METHODS The dual-luciferase reporter assay was employed to identify the interaction between lncRNA XIST and miR-204, as well as the correlation between miR-204 and interferon regulatory factor 2 (IRF2). Then, PaO2/FiO2 was determined in lipopolysaccharide (LPS)-induced ARDS. In addition, the concentrations of cytokines, including IFN-γ, IL-6, IL-17, TNF-α, IL-1β, and IL-6R were analyzed by ELISA. lncRNA XIST, miR-204, and IRF2 levels were determined by qRT-PCR assay, and the IRF2 expression was evaluated by western blot. Furthermore, levels of inflammation and conditions of alveoli were evaluated by hematoxylin (H&E)-staining in LPS-induced ARDS. RESULTS Our findings indicated that lncRNA XIST served as a sponge for miR-204. miR-204 directly regulated IRF2, andlncRNA XIST upregulated IRF2 expression by targeting miR-204. LncRNA XIST and miR-204 inhibitors significantly decreased the PaO2/FiO2 ratio, whereas miR-204 and silencing of IRF2 significantly increased the PaO2/FiO2 ratio in LPS-induced ARDS. In addition, lncRNA XIST and miR-204 inhibitors significantly increased levels of IFN-γ, IL-6, IL-17, TNF-α, IL-1β, and IL-6R, whereas miR-204 and silencing of IRF2 dramatically decreased related cytokines in LPS-induced ARDS. Furthermore, we demonstrated that lncRNA XIST and miR-204 inhibitors aggravated inflammatory cell infiltration, alveolitis, and the degree of fibrosis, whereas miR-204 and silencing of IRF2 alleviated inflammation and conditions of the alveoli. CONCLUSION In this study, we verified that lncRNA XIST serves as a sponge for miR-204 to aggravate LPS-induced ARDS in mice by upregulating IRF2.
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Affiliation(s)
- Shuguang Wang
- Department of Emergency Intensive Care Unit, Ningbo No. 6 HospitalNingbo 315040, China
| | - Feng Cao
- Department of Emergency, Ningbo No. 6 HospitalNingbo 315040, China
| | - Xingsheng Gu
- Department of Emergency Intensive Care Unit, Ningbo No. 6 HospitalNingbo 315040, China
| | - Jianan Chen
- Department of Emergency Intensive Care Unit, Ningbo No. 6 HospitalNingbo 315040, China
| | - Ranxing Xu
- Department of Clinical Laboratory, Ningbo No. 6 HospitalNingbo 315040, China
| | - Yangneng Huang
- Department of Emergency, Ningbo No. 6 HospitalNingbo 315040, China
| | - Lina Ying
- Department of Clinical Laboratory, Ningbo No. 6 HospitalNingbo 315040, China
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Xiao D, Cui X, Wang X. Long noncoding RNA XIST increases the aggressiveness of laryngeal squamous cell carcinoma by regulating miR-124-3p/EZH2. Exp Cell Res 2019; 381:172-8. [PMID: 31071316 DOI: 10.1016/j.yexcr.2019.04.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/26/2019] [Accepted: 04/29/2019] [Indexed: 12/17/2022]
Abstract
The long non-coding RNAs (lncRNAs) are an emerging class of cancer regulators. The objective of the study was to elucidate the roles and underlying mechanisms of XIST in laryngeal squamous cell carcinoma. Quantitative real-time PCR (qRT-PCR) suggested that XIST was highly upregulated in laryngeal squamous cancerous (LSCC) tissues. Knockdown of XIST, mediated by lentiviral transfection of XIST-specific short-hairpin RNA (shRNA), led to the inhibition of proliferation, migration, and invasion of LSCC cells in vitro. In vivo, XIST knockdown also suppressed the growth of LSCC xenografts in mice. Upregulation of miR-124 and downregulation of EZH2 were concomitantly observed after XIST knockdown, and our data suggested that XIST served as the competitive endogenous RNA of miR-124 to modulate EZH2 expression. Moreover, ectopic overexpression of EZH2 prominently attenuated the anti-proliferation activity by XIST knockdown. Therefore, XIST plays an important role in progression of LSCC by modulating the miR-124-EZH2 axis.
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Zou L, Chen FR, Xia RP, Wang HW, Xie ZR, Xu Y, Yu JH, Wang KH. Long noncoding RNA XIST regulates the EGF receptor to promote TGF-β1-induced epithelial-mesenchymal transition in pancreatic cancer. Biochem Cell Biol 2019; 98:267-276. [PMID: 31013436 DOI: 10.1139/bcb-2018-0274] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 12/18/2022] Open
Abstract
BACKGROUND This study focuses on the lncRNA XIST (X inactive-specific transcript), an lncRNA involved in multiple human cancers, and investigates the functional significance of XIST and the molecular mechanisms underlying the epithelial-mesenchymal transition (EMT) in pancreatic cancer (PC). METHODS Clinical specimens from 25 patients as well as 5 human PC cell lines were analyzed for XIST, YAP, and microRNA(miR)-34a by quantitative real-time PCR (qRT-PCR) and immunohistochemistry. To investigate how XIST influences cell proliferation, invasiveness, and apoptosis in PC, we performed the CCK-8 assays, Transwell assays, and flow cytometry. Luciferase reporter assays, qRT-PCR, and Western blot were applied to prove that miR-34a directly binds to XIST. RESULTS Up-regulation of XIST and Yes associated protein (YAP) and down-regulation of miR-34a were consistently observed in the clinical specimens and PC cell lines. Silencing XIST reduced the expression of YAP and suppressed transforming growth factor (TGF)-β1-induced EMT, while over-expression of XIST increased the expression of YAP and promoted EMT. In addition, inhibition of epidermal growth factor receptor (EGFR) hampered the XIST-promoted EMT. The results from the luciferase reporter assays confirmed that miR-34a directly targets XIST and suggested that XIST regulates cell proliferation, invasiveness, and apoptosis in PC by sponging miR-34a. CONCLUSIONS XIST promotes TGF-β1-induced EMT by regulating the miR-34a-YAP-EGFR axis in PC.
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Affiliation(s)
- Lei Zou
- NHC Key Laboratory of Drug Addiction Medicine, Department of Organ Transplant, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Feng-Rong Chen
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Ren-Pin Xia
- NHC Key Laboratory of Drug Addiction Medicine, Department of Organ Transplant, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Hua-Wei Wang
- NHC Key Laboratory of Drug Addiction Medicine, Department of Reproduction and Genetics, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Zhen-Rong Xie
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Yu Xu
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Jue-Hua Yu
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Kun-Hua Wang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
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Zhang R, Wang Z, Yu Q, Shen J, He W, Zhou D, Yu Q, Fan J, Gao S, Duan L. Atractylenolide II reverses the influence of lncRNA XIST/miR-30a-5p/ROR1 axis on chemo-resistance of colorectal cancer cells. J Cell Mol Med 2019; 23:3151-3165. [PMID: 30907503 PMCID: PMC6484310 DOI: 10.1111/jcmm.14148] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [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: 10/16/2018] [Revised: 12/14/2018] [Accepted: 12/20/2018] [Indexed: 01/04/2023] Open
Abstract
This investigation was conducted to elucidate whether atractylenolide II could reverse the role of lncRNA XIST/miR-30a-5p/ROR1 axis in modulating chemosensitivity of colorectal cancer cells. We totally collected 294 pairs of colorectal cancer tissues and adjacent normal tissues and also purchased colorectal cancer cell lines and human embryonic kidney cell line. 5-fluorouracil, cisplatin, mitomycin and adriamycin were designated as the chemotherapies for colorectal cell lines, and atractylenolides were arranged as the Chinese drug. The expressions of XIST, miR-30a-5p and ROR1 were quantified with aid of qRT-PCR or Western blot, and luciferase reporter gene assay was implemented to determine the relationships among XIST, miR-30a-5p and ROR1. Our results demonstrated that XIST and ROR1 expressions were dramatically up-regulated, yet miR-30a-5p expression was down-regulated within colorectal cancer tissues (P < 0.05). The overexpressed XIST and ROR1, as well as under-expressed miR-30a-5p, were inclined to promote viability and proliferation of colorectal cells under the influence of chemo drugs (P < 0.05). In addition, XIST could directly target miR-30a-5p, and ROR1 acted as the targeted molecule of miR-30a-5p. Interestingly, atractylenolides not only switched the expressions of XIST, miR-30a-5p and ROR1 within colorectal cancer cells but also significantly intensified the chemosensitivity of colorectal cancer cells (P < 0.05). Finally, atractylenolide II was discovered to slow down the viability and proliferation of colorectal cancer cells (P < 0.05). In conclusion, the XIST/miR-30a-5p/ROR1 axis could be deemed as pivotal markers underlying colorectal cancer, and administration of atractylenolide II might improve the chemotherapeutic efficacy for colorectal cancer.
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Affiliation(s)
- Ruijuan Zhang
- Department of Traditional Chinese Medicine, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Zhijun Wang
- Department of Traditional Chinese Medicine, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Qianyun Yu
- Department of Traditional Chinese Medicine, Wuliqiao Community Health Center of Huangpu District, Shanghai, China
| | - Jun Shen
- Department of Traditional Chinese Medicine, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Wenji He
- Department of Traditional Chinese Medicine, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Dongqing Zhou
- Department of Traditional Chinese Medicine, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Qingqing Yu
- Department of Traditional Chinese Medicine, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Jiawei Fan
- Department of Traditional Chinese Medicine, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Shurong Gao
- Department of Traditional Chinese Medicine, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
| | - Lihong Duan
- Department of Rheumatology, Putuo People's Hospital Affiliated to Tongji University, Shanghai, China
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Yu X, Wang D, Wang X, Sun S, Zhang Y, Wang S, Miao R, Xu X, Qu X. CXCL12/CXCR4 promotes inflammation-driven colorectal cancer progression through activation of RhoA signaling by sponging miR-133a-3p. J Exp Clin Cancer Res 2019; 38:32. [PMID: 30678736 PMCID: PMC6346552 DOI: 10.1186/s13046-018-1014-x] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/19/2018] [Indexed: 02/07/2023]
Abstract
Background Activation of CXCL12/CXCR4 axis has been found to be associated with invasion and metastasis in many cancers. However, the underlying mechanism remains elusive. Increasing data highlight that non-coding RNAs are linked to CRC progression. Methods The effects of CXCR4 were investigated using villin-CXCR4 transgenic mice model by flow cytometry assay, immunohistochemistry, and Western blot. The mechanism was explored through bioinformatics, luciferase reporter assay and RNA immunoprecipitation assay. Results We found that high CXCR4 expression exacerbated colitis-associated cancer in villin-CXCR4 transgenic mice. CXCR4+/−Apcmin/+ compound mutant mice demonstrated higher colorectal tumorigenesis than Apcmin/+ mice. Furthermore, overexpression of CXCR4 was found to promote the epithelial-mesenchymal transition (EMT) and infiltration of myeloid-derived suppressor cells (MDSCs) and macrophages in colonic tissue, accelerating colitis-associated and Apc mutation-driven colorectal tumorigenesis and progression. Notably, miR-133a-3p was found to be significantly decreased in HCT116 cells overexpressing CXCR4 by miRNA sequencing. miR-133a-3p was proved to target RhoA, which is involved in cytoskeletal reorganization that drive cell motility. Importantly, CXCL12/CXCR4-induced upregulation of lncRNA XIST functioned as a ceRNA to sponge miR-133a-3p, thereby liberating the repression of RhoA by miR-133a-3p. The negative correlation of miR-133a-3p with RhoA was also confirmed in human CRC tissues and CXCR4+/− mice. Conclusions Our findings revealed the critical role of CXCR4 in promoting progression of inflammatory colorectal cancer through recruiting immunocytes and enhancing cytoskeletal remodeling by lncRNA XIST/ miR-133a-3p/ RhoA signaling. These results provide novel potential therapeutic targets for hindering CXCL12/CXCR4-induced CRC progression. Electronic supplementary material The online version of this article (10.1186/s13046-018-1014-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xinfeng Yu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.
| | - Dong Wang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xiaohui Wang
- Department of General Surgery, Xuan Wu Hospital, Capital Medical University, Beijing, China
| | - Shiyue Sun
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yuhang Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Shuqing Wang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Rongrong Miao
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xiaoxue Xu
- Department of Central Laboratory, Capital Medical University, Beijing, China
| | - Xianjun Qu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.
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Liu A, Liu L, Lu H. LncRNA XIST facilitates proliferation and epithelial-mesenchymal transition of colorectal cancer cells through targeting miR-486-5p and promoting neuropilin-2. J Cell Physiol 2019; 234:13747-13761. [PMID: 30656681 DOI: 10.1002/jcp.28054] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [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: 10/09/2018] [Accepted: 12/03/2018] [Indexed: 12/17/2022]
Abstract
This study was designed to acertain whether the long noncoding RNA (lncRNA) X-inactive specific transcript (XIST)/miR-486-5p/neuropilin-2 (NRP-2) pathway might promote the viability and epithelial-mesenchymal transition (EMT) of colorectal cancer (CRC) cells. In this investigation, we included 317 pathologically confirmed CRC patients and purchased several human CRC cells (i.e. HCT116, HT29, SW620, and SW480). Moreover, pcDNA3.1-XIST, si-XIST, miR-486-5p mimic, miR-486-5p inhibitor, and pcDNA3.1-NRP-2 were transfected into the CRC cells. And the dual-luciferase reporter gene assay managed to verify the targeted relationships among XIST, miR-486-5p, and NRP-2. Ultimately, the MTT assay, flow cytometry, colony formation assay, and transwell assay were carried out to assess the influence of XIST, miR-486-5p, and NRP-2 on the proliferation, apoptosis, migration, and invasion of CRC cells. Our study results demonstrated that CRC tissues and cells were detected with significantly elevated XIST and NRP-2 expressions as well as markedly reduced miR-486-5p expression when compared with normal tissues and cells (all p < 0.05). Besides this, the highly expressed XIST and NRP-2, as well as the lowly expressed miR-486-5p all could substantially encourage proliferation and EMT of CRC cells and simultaneously restrict apoptosis of the cells ( p < 0.05). Moreover, XIST was found to directly target miR-486-5p, and NRP-2 was directly targeted and modulated by miR-486-5p. Finally, CRC cells of the miR-NC + pcDNA3.1-NRP-2 groups showed stronger proliferation, viability, and EMT than those of miR-NC and miR-486-5p mimic groups ( p < 0.05). In conclusion, the XIST/miR-486 -5p/NRP-2 axis appeared to participate in the progression of CRC, which could assist in developing efficacious therapies for CRC.
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Affiliation(s)
- Aihua Liu
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Lihua Liu
- Department of Respiration, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
| | - Hang Lu
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, Liaoning Province, China
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Xiao L, Gu Y, Sun Y, Chen J, Wang X, Zhang Y, Gao L, Li L. The long noncoding RNA XIST regulates cardiac hypertrophy by targeting miR-101. J Cell Physiol 2019; 234:13680-13692. [PMID: 30605239 DOI: 10.1002/jcp.28047] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [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: 10/17/2018] [Accepted: 11/30/2018] [Indexed: 12/27/2022]
Abstract
Cardiac hypertrophy and its resultant heart failure are among the most common causes of mortality, worldwide. Long noncoding RNAs (lncRNAs) are involved in diverse biological processes, and their vital role in the regulation of cardiac hypertrophy is increasingly being discovered. Nevertheless, the biological roles of lncRNA X-inactive specific transcript (XIST) in cardiac hypertrophy are scarcely reported, and the current study was designed to determine whether cardiac hypertrophy can be regulated by XIST and to elucidate the related mechanism. The animals were randomized to receive either an adeno-associated virus expressing XIST or control plasmid via a single bolus-tail vein injection. Two weeks later, hypertrophy was established by transverse aortic constriction (TAC) surgery. In vitro, H9c2 cells were used to explore the potential molecular mechanism of XIST in the regulation of phenylephrine (PE)-induced cardiomyocyte hypertrophy. A luciferase reporter assay and RNA immunoprecipitation were performed to explore the relationships among XIST, microRNA (miR)-101, and toll-like receptor 2 (TLR2). In this study, we demonstrated that the expression of XIST was significantly upregulated in hypertrophic mouse hearts and PE-treated cardiomyocytes. Then, we observed that knockdown of XIST attenuated PE-induced cardiomyocyte hypertrophy. Conversely, overexpression of XIST aggravated TAC-induced cardiac hypertrophy. Finally, we demonstrated that miR-101 was a direct target of XIST, whereas TLR2 was a target of miR-101. Rescue assays further confirmed that XIST promoted the progression of cardiac hypertrophy through competitively binding with miR-101 to enhance the expression of TLR2. Collectively, these in vivo and in vitro findings identify XIST as a necessary regulator of cardiac hypertrophy due to its regulation of the miR-101/TLR2 axis, suggesting that XIST might act as a therapeutic target for the treatment of cardiac hypertrophy and heart failure.
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Affiliation(s)
- Lili Xiao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yulei Gu
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yunlong Sun
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jun Chen
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaofang Wang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanzhou Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lu Gao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ling Li
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Ma M, Pei Y, Wang X, Feng J, Zhang Y, Gao MQ. LncRNA XIST mediates bovine mammary epithelial cell inflammatory response via NF-κB/NLRP3 inflammasome pathway. Cell Prolif 2018; 52:e12525. [PMID: 30362186 PMCID: PMC6430464 DOI: 10.1111/cpr.12525] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [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] [Received: 06/01/2018] [Revised: 07/16/2018] [Accepted: 08/10/2018] [Indexed: 12/26/2022] Open
Abstract
Objectives The correlations between long non‐coding RNAs (lncRNAs) and diverse mammal diseases have been clarified by many researches, but the cognition about bovine mastitis‐related lncRNAs remains limited. This study aimed to investigate the potential role of lncRNA X‐inactive specific transcript (XIST) in the inflammatory response of bovine mammary epithelial cells. Materials and methods Two inflammatory bovine mammary alveolar cell‐T (MAC‐T) models were established by infecting the cells with Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The expressions of pro‐inflammatory cytokines were measured, and the proliferation, viability and apoptosis of the inflammatory cells were evaluated after XIST was knocked down by an siRNA. The relationship among XIST, NF‐κB pathway and NOD‐like receptor protein 3 (NLRP3) inflammasome was investigated using an inhibitor of NF‐κB signal pathway. Results The expression of XIST was abnormally increased in bovine mastitic tissues and inflammatory MAC‐T cells. Silencing of XIST significantly increased the expression of E. coli or S. aureus‐induced pro‐inflammatory cytokines. Additionally, knockdown of XIST could inhibit cell proliferation, suppress cell viability and promote cell apoptosis under inflammatory conditions. Furthermore, XIST inhibited E. coli or S. aureus‐induced NF‐κB phosphorylation and the production of NLRP3 inflammasome. Conclusions The expression of XIST was promoted by activated NF‐κB pathway and, in turn, XIST generated a negative feedback loop to regulate NF‐κB/NLRP3 inflammasome pathway for mediating the process of inflammation.
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Affiliation(s)
- Mengru Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yifei Pei
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Xixi Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jiaxin Feng
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Ming-Qing Gao
- College of Veterinary Medicine, Northwest A&F University, Yangling, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Northwest A&F University, Yangling, China
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42
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Li L, Lv G, Wang B, Kuang L. The role of lncRNA XIST/miR-211 axis in modulating the proliferation and apoptosis of osteoarthritis chondrocytes through CXCR4 and MAPK signaling. Biochem Biophys Res Commun 2018; 503:2555-2562. [PMID: 30005876 DOI: 10.1016/j.bbrc.2018.07.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [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: 07/02/2018] [Accepted: 07/04/2018] [Indexed: 12/20/2022]
Abstract
Long noncoding RNAs (lncRNAs) participate in multiple diverse diseases, including osteoarthritis (OA). Here, we explored the role of lncRNA XIST in OA and identified the potential molecular mechanisms. The expression of XIST in cartilage samples in patients with OA was significantly upregulated. XIST knockdown remarkably suppressed IL-1β-suppressed OA chondrocyte proliferation while promoted IL-1β-induced cell apoptosis. By employing online tools, miRNAs related to CXCR4, a major contributor to chondrocyte apoptosis, and XIST were selected. miR-211 expression could be significantly inhibited by IL-1β stimulation, and miR-211 negatively regulated XIST expression and CXCR4 protein levels. Through direct binding, XIST served as a ceRNA for miR-211 to counteract miR-211-mediated CXCR4 repression, thereby modulating chondrocyte proliferation and apoptosis through downstream MAPK signaling. In OA tissues, miR-211 expression was significantly downregulated while CXCR4 mRNA expression was upregulated. miR-211 was negatively correlated with XIST and CXCR4, respectively, while XIST and CXCR4 was positively correlated in tissue samples. In conclusion, the study revealed that lncRNA XIST can promote the proliferation of OA chondrocytes and promote apoptosis through the miR-211/CXCR4 axis. Thus, lncRNA XIST might be considered as a potential therapeutic target for OA treatment.
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Affiliation(s)
- Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.
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43
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Xu X, Ma C, Liu C, Duan Z, Zhang L. Knockdown of long noncoding RNA XIST alleviates oxidative low-density lipoprotein-mediated endothelial cells injury through modulation of miR-320/NOD2 axis. Biochem Biophys Res Commun 2018; 503:586-592. [PMID: 29902461 DOI: 10.1016/j.bbrc.2018.06.042] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [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: 06/01/2018] [Accepted: 06/10/2018] [Indexed: 02/04/2023]
Abstract
Atherosclerosis remains to be one of the most common vascular disorders resulting in morbidity and mortality in the world. Recent studies suggested that endothelial cells (ECs) injury caused by oxidative low-density lipoprotein (ox-LDL) is an early marker for atherosclerosis. Nevertheless, the mechanisms of ox-LDL-induced ECs injury are complicated and largely unknown. Here, we found lncRNA XIST (X-inactive specific transcript) was upregulated in human umbilical vein endothelial cells (HUVECs) stimulated by ox-LDL. Knockdown of XIST boosted the cell viability and suppressed cell apoptosis under ox-LDL stimuli. Further experiments identified XIST regulated the expression of Nucleotide-Binding Oligomerization Domain 2 (NOD2) by sponging miR-320. XIST silencing exerted a protective effect on ox-LDL-induced HUVECs injury via miR-320/NOD2 regulatory network. Our data provide insight into the role of the lncRNA XIST in ox-LDL mediated ECs injury, which can aid in developing new therapeutic strategies for the treatment of atherosclerosis.
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Affiliation(s)
- Xiaohui Xu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang City, 471009, China.
| | - Congmin Ma
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang City, 471009, China
| | - Chao Liu
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang City, 471009, China
| | - Zhihui Duan
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang City, 471009, China
| | - Li Zhang
- Department of Neurology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang City, 471009, China
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Ma L, Zhou Y, Luo X, Gao H, Deng X, Jiang Y. Long non-coding RNA XIST promotes cell growth and invasion through regulating miR-497/MACC1 axis in gastric cancer. Oncotarget 2018; 8:4125-4135. [PMID: 27911852 PMCID: PMC5354817 DOI: 10.18632/oncotarget.13670] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 10/19/2016] [Indexed: 01/23/2023] Open
Abstract
Abnormal expression of long non-coding RNA (lncRNAs) often contributes to unrestricted growth and invasion of cancer cells. LncRNA XIST expression is up-regulated in several cancers, however, its modulatory mechanism in gastric cancer (GC) has not been elucidated. In the present study, we found that XIST expression was significantly increased in GC tissues and cell lines. LncRNA XIST promoted cell cycle progression from the G1 phase to the S phase and protected cells from apoptosis, which contributed to GC cell growth. LncRNA XIST also contributed to GC cell invasion both in vitro and in vivo. We revealed that XIST functioned as competing endogenous RNA to repress miR-497, which controlled its down-stream target MACC1. We proposed that XIST was responsible for GC cell proliferation and invasion and XIST exerted its function through the miR-497/MACC1 axis. Our findings suggested that lncRNA XIST may be a candidate prognostic biomarker and a target for new therapies in GC patients.
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Affiliation(s)
- Lei Ma
- Cancer Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Gastroenterology, Guangzhou Medical University, Guangzhou, China
| | - Yongjian Zhou
- Department of Gastroenterology, The First Hospital of Guangzhou, Guangzhou, China
| | - Xiaojun Luo
- Cancer Center, TCM-Integrated Hospital, Southern Medical University, Guangzhou, China
| | - Hai Gao
- Xiamen Hospital of Traditional Chinese Medicine, Xiamen, China.,Xiamen Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Xiamen, China
| | - Xubin Deng
- Cancer Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yingjie Jiang
- Department of Gastroenterology, The First Hospital of Guangzhou, Guangzhou, China
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Li C, Wan L, Liu Z, Xu G, Wang S, Su Z, Zhang Y, Zhang C, Liu X, Lei Z, Zhang HT. Long non-coding RNA XIST promotes TGF-β-induced epithelial-mesenchymal transition by regulating miR-367/141-ZEB2 axis in non-small-cell lung cancer. Cancer Lett 2018; 418:185-195. [PMID: 29339211 DOI: 10.1016/j.canlet.2018.01.036] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 01/08/2018] [Accepted: 01/09/2018] [Indexed: 12/19/2022]
Abstract
Growing evidence shows that lncRNA XIST functions as an oncogene accelerating tumor progression. Transforming growth factor β (TGF-β)-induced epithelial-mesenchymal transition (EMT) plays a key role in tumor metastasis. However, it is still unclear whether lncRNA XIST is implicated in TGF-β-induced EMT and influences cell invasion and metastasis in non-small-cell lung cancer (NSCLC). Here, we observed increased expression of lncRNA XIST and ZEB2 mRNA in metastatic NSCLC tissues. Knockdown of lncRNA XIST inhibited ZEB2 expression, and repressed TGF-β-induced EMT and NSCLC cell migration and invasion. Being in consistent with the in vitro findings, the in vivo experiment of metastasis showed that knockdown of lncRNA XIST inhibited pulmonary metastasis of NSCLC cells in mice. In addition, knockdown of ZEB2 expression can inhibit TGF-β-induced EMT and NSCLC cell migration and invasion. Mechanistically, lncRNA XIST and ZEB2 were targets of miR-367 and miR-141. Furthermore, both miR-367 and miR-141 expression can be upregulated by knockdown of lncRNA XIST. Taken together, our study reveals that lncRNA XIST can promote TGF-β-induced EMT and cell invasion and metastasis by regulating miR-367/miR-141-ZEB2 axis in NSCLC.
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Affiliation(s)
- Chang Li
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Cardiothoracic Surgery, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Liang Wan
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zeyi Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Guangquan Xu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150086, China
| | - Shengjie Wang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Basic Medicine, Kangda College of Nanjing Medical University, Lianyungang, 222000, China
| | - Zhiyue Su
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Yingxi Zhang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Cuijuan Zhang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xia Liu
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zhe Lei
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, Jiangsu, 215123, China.
| | - Hong-Tao Zhang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Department of Genetics, School of Biology and Basic Medical Science, Medical College of Soochow University, Suzhou, Jiangsu, 215123, China; Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, Jiangsu, 215123, China.
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Cheng Z, Li Z, Ma K, Li X, Tian N, Duan J, Xiao X, Wang Y. Long Non-coding RNA XIST Promotes Glioma Tumorigenicity and Angiogenesis by Acting as a Molecular Sponge of miR-429. J Cancer 2017; 8:4106-4116. [PMID: 29187887 PMCID: PMC5706014 DOI: 10.7150/jca.21024] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [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: 05/15/2017] [Accepted: 10/19/2017] [Indexed: 02/07/2023] Open
Abstract
Glioma is a worldwide malignancy, which displays significantly active metastasis and angiogenesis. Interaction between long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) has been shown to play crucial role in regulating tumor properties. However, the potential of lncRNA X-inactive specific transcript (XIST) to function as a miRNA regulator and its relevance in glioma tumorigenicity and angiogenesis have so far remained unclear. Expression analysis of lncRNA XIST in glioma cells revealed its significant up-regulation. Interestingly, silencing of XIST repressed both metastatic and pro-angiogenic ability in vitro as well as in vivo. Subsequent studies revealed that lncRNA XIST expression inversely correlated with miR-429 expression in glioma cells; miR-429 modulated XIST expression by directly targeting the XIST gene sequence. In addition, miR-429 inhibitor restored metastatic and pro-angiogenic ability of gliomas abolished by silencing XIST. Our data provide insight into the key roles of the lncRNA-miRNA functional network in gliomas, which can aid in developing new therapeutic strategies for gliomas through clinical trials.
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Affiliation(s)
- Zhihua Cheng
- Department of Vascular Surgery, the First Hospital of Jilin University, Changchun, 130021, P.R. China
| | - Zhenshengnan Li
- Department of Clinical Medicine, Norman Bethune Health Science Center of Jilin University, Changchun, 130021,P.R. China
| | - Ke Ma
- Department of Pediatric Emergency, the First Hospital of Jilin University, Changchun, 130021, P.R. China
| | - Xiaoyu Li
- Department of Otolaryngology Head and Neck surgery, the First Hospital of Jilin University, Changchun, 130021, P.R. China
| | - Nan Tian
- Department of Cell Biology, College of Life Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jinyue Duan
- Department of Regenerative Medicine, School of Pharmaceutical Science, Jilin University, Changchun, 130021, P.R. China
| | - Xu Xiao
- Department of Regenerative Medicine, School of Pharmaceutical Science, Jilin University, Changchun, 130021, P.R. China
| | - Yi Wang
- Department of Regenerative Medicine, School of Pharmaceutical Science, Jilin University, Changchun, 130021, P.R. China
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Xiao Y, Yurievich UA, Yosypovych SV. Long noncoding RNA XIST is a prognostic factor in colorectal cancer and inhibits 5-fluorouracil-induced cell cytotoxicity through promoting thymidylate synthase expression. Oncotarget 2017; 8:83171-83182. [PMID: 29137332 PMCID: PMC5669958 DOI: 10.18632/oncotarget.20487] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [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: 05/13/2017] [Accepted: 07/25/2017] [Indexed: 01/17/2023] Open
Abstract
A major reason for the failure of advanced colorectal cancer (CRC) treatment is the occurrence of chemoresistance to 5-fluorouracil (5FU)-based treatment. Recent studies have shown that long non-coding RNAs (lncRNAs) are critical regulators in chemoresistance. By using the next generation HiSeq sequencing assay, we identified lncRNAs showing differential expression levels in 5FU resistant and non-resistant CRC patients. RT-qPCR was then performed for validation in tissues and serum samples, and lncRNA XIST was verified to be up-regulated in non-responding patients and have considerable diagnostic potential to identify responding patients from non-responding patients. In addition, increased serum XIST level was associated with poor response and lower survival rate in CRC patients receiving 5FU-based treatment. Subsequently, the 5FU resistant (5FU-R) cell lines were established, and lncRNA XIST was significantly up-regulated HT29 5FU-R and HCT116 5FU-R cells. Furthermore, knockdown of XIST reversed 5FU resistance while enhanced XIST could restrained the 5FU-induced cell cytotoxcity in both CRC cell lines. Western blotting and immunofluorescence analysis indicated that XIST promoted the expression of thymidylate synthase, a critical 5FU-targetd enzyme. In conclusion, our integrated approach demonstrates that increased expression of lncRNA XIST3 in CRC confers a potent poor therapeutic efficacy, and that lncRNA XIST participated in 5FU resistance through promoting the expression of thymidylate synthase. Thus, specific silence oflncRNA XIST could be a future direction to develop a novel therapeutic strategy to overcome 5FU resistance of CRC patients.
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Affiliation(s)
- Yang Xiao
- Department of Surgery and Transplantology, P. L. Shupyk National Medical Academy of Postgraduate Education, Kyiv, Ukraine
| | - Usenko Alexander Yurievich
- Department of Surgery and Transplantology, P. L. Shupyk National Medical Academy of Postgraduate Education, Kyiv, Ukraine
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48
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Wang H, Shen Q, Zhang X, Yang C, Cui S, Sun Y, Wang L, Fan X, Xu S. The Long Non-Coding RNA XIST Controls Non-Small Cell Lung Cancer Proliferation and Invasion by Modulating miR-186-5p. Cell Physiol Biochem 2017; 41:2221-2229. [PMID: 28448993 DOI: 10.1159/000475637] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 02/24/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Long non-coding RNAs (lncRNAs) are key players in the development and progression of human cancers. The lncRNA XIST (X-inactive specific transcript) has been shown to be upregulated in human non-small cell lung cancer (NSCLC); however, its role and molecular mechanisms in NSCLC cell progression remain unclear. METHODS qRT-PCR was conducted to assess the expression of XIST and miR-186. Cell proliferation was detected using MTT assay. Cell invasion and migration were evaluated using transwell assay. Cell cycle distribution and apoptosis rates were analyzed by flow cytometry. Luciferase reporter assay was used to identify the direct regulation of XIST and miR-186. A RNA immunoprecipitation was used to analyze whether XIST was associated with the RNA-induced silencing complex (RISC). RESULTS We confirmed that XIST was upregulated in NSCLC cell lines and tissues. Functionally, XIST knockdown inhibited cancer cell proliferation and invasion, and induced apoptosis in vitro, and suppressed subcutaneous tumor growth in vivo. Mechanistic investigations revealed a reciprocal repressive interaction between XIST and miR-186-5p. Furthermore, we showed that miR-186-5p has a binding site for XIST. Our data also indicated that XIST and miR-186-5p are likely in the same RNA induced silencing complex. CONCLUSION Together, our data revealed that XIST knockdown confers suppressive function in NSCLC and XIST may be a novel therapeutic marker in this disease.
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MESH Headings
- A549 Cells
- Animals
- Antagomirs/metabolism
- Base Sequence
- Binding Sites
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/pathology
- Cell Line
- Cell Movement
- Cell Proliferation
- Cell Transformation, Neoplastic
- Genes, Reporter
- HT29 Cells
- Humans
- Lung Neoplasms/genetics
- Lung Neoplasms/pathology
- Mice
- Mice, Nude
- MicroRNAs/antagonists & inhibitors
- MicroRNAs/genetics
- MicroRNAs/metabolism
- RNA, Long Noncoding/antagonists & inhibitors
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- RNA, Small Interfering/metabolism
- Sequence Alignment
- Transplantation, Heterologous
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49
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Chen DL, Ju HQ, Lu YX, Chen LZ, Zeng ZL, Zhang DS, Luo HY, Wang F, Qiu MZ, Wang DS, Xu DZ, Zhou ZW, Pelicano H, Huang P, Xie D, Wang FH, Li YH, Xu RH. Long non-coding RNA XIST regulates gastric cancer progression by acting as a molecular sponge of miR-101 to modulate EZH2 expression. J Exp Clin Cancer Res 2016; 35:142. [PMID: 27620004 PMCID: PMC5020507 DOI: 10.1186/s13046-016-0420-1] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 09/07/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) have emerged as critical regulators of tumor progression. However, the role and molecular mechanism of lncRNA XIST in gastric cancer is still unknown. METHODS Real-time PCR analysis was performed to measure the expression levels of lncRNA XIST in gastric cancer tissues and cell lines, the correlation between lncRNA XIST expression and clinicopathological characteristics and prognosis was analyzed in gastric cancer patients. The biological function of lncRNA XIST on gastric cancer cells were determined both in vitro and in vivo. The regulating relationship between lncRNA XIST and miR-101 was investigated in gastric cancer cells. RESULTS lncRNA XIST was significantly up-regulated in gastric cancer tissues and cell lines. Overexpression of lncRNA XIST was markedly associated with larger tumor size, lymph node invasion, distant metastasis and TNM stage in gastric cancer patients. Functionally, knockdown of lncRNA XIST exerted tumor-suppressive effects by inhibiting cell proliferation, migration and invasion in vitro and tumor growth and metastasis in vivo. Furthermore, an inverse relationship between lncRNA XIST and miR-101 was found. Polycomb group protein enhancer of zeste homolog 2 (EZH2), a direct target of miR-101, could mediated the biological effects that lncRNA XIST exerted. CONCLUSIONS lncRNA XIST is up-regulated and is associated with aggressive tumor phenotypes and patient survival in gastric cancer, and the newly identified lncRNA XIST/miR-101/EZH2 axis could be a potential biomarkers or therapeutic targets for gastric cancer patients.
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Affiliation(s)
- Dong-Liang Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Huai-Qiang Ju
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Yun-Xin Lu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Le-Zong Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Zhao-Lei Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Dong-Sheng Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Hui-Yan Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Feng Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Miao-Zhen Qiu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - De-Shen Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Da-Zhi Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Zhi-Wei Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Helene Pelicano
- University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Peng Huang
- University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
| | - Dan Xie
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Feng-Hua Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Yu-Hong Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China
| | - Rui-Hua Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Oncology, Sun Yat-sen University Cancer Center, No. 651 Dong Feng East Road, Guangzhou, 510060, China.
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