151
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Li L, van Breugel PC, Loayza-Puch F, Ugalde AP, Korkmaz G, Messika-Gold N, Han R, Lopes R, Barbera EP, Teunissen H, de Wit E, Soares RJ, Nielsen BS, Holmstrøm K, Martínez-Herrera DJ, Huarte M, Louloupi A, Drost J, Elkon R, Agami R. LncRNA-OIS1 regulates DPP4 activation to modulate senescence induced by RAS. Nucleic Acids Res 2019; 46:4213-4227. [PMID: 29481642 PMCID: PMC5934637 DOI: 10.1093/nar/gky087] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 01/29/2018] [Indexed: 12/15/2022] Open
Abstract
Oncogene-induced senescence (OIS), provoked in response to oncogenic activation, is considered an important tumor suppressor mechanism. Long non-coding RNAs (lncRNAs) are transcripts longer than 200 nt without a protein-coding capacity. Functional studies showed that deregulated lncRNA expression promote tumorigenesis and metastasis and that lncRNAs may exhibit tumor-suppressive and oncogenic function. Here, we first identified lncRNAs that were differentially expressed between senescent and non-senescent human fibroblast cells. Using RNA interference, we performed a loss-function screen targeting the differentially expressed lncRNAs, and identified lncRNA-OIS1 (lncRNA#32, AC008063.3 or ENSG00000233397) as a lncRNA required for OIS. Knockdown of lncRNA-OIS1 triggered bypass of senescence, higher proliferation rate, lower abundance of the cell-cycle inhibitor CDKN1A and high expression of cell-cycle-associated genes. Subcellular inspection of lncRNA-OIS1 indicated nuclear and cytosolic localization in both normal culture conditions as well as following oncogene induction. Interestingly, silencing lncRNA-OIS1 diminished the senescent-associated induction of a nearby gene (Dipeptidyl Peptidase 4, DPP4) with established role in tumor suppression. Intriguingly, similar to lncRNA-OIS1, silencing DPP4 caused senescence bypass, and ectopic expression of DPP4 in lncRNA-OIS1 knockdown cells restored the senescent phenotype. Thus, our data indicate that lncRNA-OIS1 links oncogenic induction and senescence with the activation of the tumor suppressor DPP4.
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Affiliation(s)
- Li Li
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Pieter C van Breugel
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Fabricio Loayza-Puch
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Alejandro Pineiro Ugalde
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Gozde Korkmaz
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Naama Messika-Gold
- Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, 69978, Tel Aviv University, Tel Aviv, Israel
| | - Ruiqi Han
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Rui Lopes
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Eric P Barbera
- Division of Molecular Genetics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Hans Teunissen
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Elzo de Wit
- Division of Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | | | | | - Kim Holmstrøm
- Bioneer A/S, Kogle Allé 2, DK-2970 Hørsholm, Denmark
| | | | - Maite Huarte
- Institute of Health Research of Navarra (IdiSNA), 31008 Pamplona, Spain
| | - Annita Louloupi
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Jarno Drost
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Ran Elkon
- Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, 69978, Tel Aviv University, Tel Aviv, Israel
| | - Reuven Agami
- Division of Oncogenomics, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands.,Erasmus MC, Rotterdam University, 3000 CA Rotterdam, The Netherlands.,Oncode institute, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
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152
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Long Non-coding RNAs as Important Biomarkers in Laryngeal Cancer and Other Head and Neck Tumours. Int J Mol Sci 2019; 20:ijms20143444. [PMID: 31336999 PMCID: PMC6678449 DOI: 10.3390/ijms20143444] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 12/28/2022] Open
Abstract
Head and neck carcinoma (HNC) is a heterogeneous disease encompassing a variety of tumors according to the origin. Laryngeal cancer (LC) represents one of the most frequent tumors in the head and neck region. Despite clinical studies and advance in treatment, satisfactory curative strategy has not yet been reached. Therefore, there is an urgent need for the identification of specific molecular signatures that better predict the clinical outcomes and markers that serve as suitable therapeutic targets. Long non-coding RNAs (lncRNA) are reported as important regulators of gene expression and represent an innovative pharmacological application as molecular biomarkers in cancer. The purpose of this review is to discuss the most relevant epigenetic and histological prognostic biomarkers in HNC, with particular focus on LC. We summarize the emerging roles of long non-coding RNAs in HNC and LC development and their possible use in early diagnosis.
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153
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Tong J, Xu X, Zhang Z, Ma C, Xiang R, Liu J, Xu W, Wu C, Li J, Zhan F, Wu Y, Yan H. Hypoxia-induced long non-coding RNA DARS-AS1 regulates RBM39 stability to promote myeloma malignancy. Haematologica 2019; 105:1630-1640. [PMID: 31289203 PMCID: PMC7271587 DOI: 10.3324/haematol.2019.218289] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 07/05/2019] [Indexed: 12/13/2022] Open
Abstract
Multiple myeloma is a malignant plasma-cell disease, which is highly dependent on the hypoxic bone marrow microenvironment. However, the underlying mechanisms of hypoxia contributing to myeloma genesis are not fully understood. Here, we show that long non-coding RNA DARS-AS1 in myeloma is directly upregulated by hypoxia inducible factor (HIF)-1. Importantly, DARS-AS1 is required for the survival and tumorigenesis of myeloma cells both in vitro and in vivo. DARS-AS1 exerts its function by binding RNA-binding motif protein 39 (RBM39), which impedes the interaction between RBM39 and its E3 ubiquitin ligase RNF147, and prevents RBM39 from degradation. The overexpression of RBM39 observed in myeloma cells is associated with poor prognosis. Furthermore, knockdown of DARS-AS1 inhibits the mammalian target of rapamycin signaling pathway, an effect that is reversed by RBM39 overexpression. We reveal that a novel HIF-1/DARS-AS1/RBM39 pathway is implicated in the pathogenesis of myeloma. Targeting DARS-AS1/RBM39 may, therefore, represent a novel strategy to combat myeloma.
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Affiliation(s)
- Jia Tong
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoguang Xu
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zilu Zhang
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chengning Ma
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rufang Xiang
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jia Liu
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenbin Xu
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Wu
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junmin Li
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fenghuang Zhan
- Division of Hematology, Oncology, and Blood and Marrow Transplantation, Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Yingli Wu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hua Yan
- Department of Hematology, Affiliated Ruijin Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, China .,Department of General Practice, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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154
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Long non-coding RNA XIST predicting advanced clinical parameters in cancer: A Meta-Analysis and case series study in a single institution. Oncol Lett 2019; 18:2192-2202. [PMID: 31404342 PMCID: PMC6676735 DOI: 10.3892/ol.2019.10592] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 06/13/2019] [Indexed: 12/11/2022] Open
Abstract
Dysregulated expression of long non-coding RNA X-inactive specific transcript (lncRNA-XIST) has been indicated in various cancer types. In the present study, a meta-analysis was conducted to evaluate the potential role of lncRNA-XIST in predicting the clinicopathological parameters of patients with cancer. Eligible studies were obtained through a systematic search of PubMed, Web of Science, Embase and the Cochrane Library, of articles published prior to January 2019. The combined odds ratio and 95% confidence interval were calculated to determine the association between lncRNA-XIST expression and patient outcome. In addition, 45 pairs of osteosarcoma (OS) tissues and adjacent healthy tissues from a single institution were analyzed for the expression of lncRNA-XIST, and its association with clinicopathological features; ultimately, a total of 1,869 cancer patients from 25 studies were assessed. The results demonstrated that high expression levels of lncRNA-XIST were significantly associated with lymphatic metastasis, larger tumor size, advanced cancer stage and distant metastasis. However, sex was not associated with lncRNA-XIST expression level. In the OS patient cohort, it was demonstrated that lncRNA-XIST was highly expressed in OS tissues, which negatively correlated with patient prognosis. The present study indicated that lncRNA-XIST may serve as a potential biomarker for advanced clinical parameters in human cancer.
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155
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Li J, Zhao LM, Zhang C, Li M, Gao B, Hu XH, Cao J, Wang GY. The lncRNA FEZF1-AS1 Promotes the Progression of Colorectal Cancer Through Regulating OTX1 and Targeting miR-30a-5p. Oncol Res 2019; 28:51-63. [PMID: 31270006 PMCID: PMC7851540 DOI: 10.3727/096504019x15619783964700] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) participate in and regulate the biological process of colorectal cancer (CRC) progression. Our previous research identified differentially expressed lncRNAs in 10 CRC tissues and 10 matched nontumor tissues by next-generation sequencing (NGS). In this study, we identified an lncRNA, FEZF1 antisense RNA 1 (FEZF1-AS1), and further explored its function and mechanism in CRC. We verified that FEZF1-AS1 is highly expressed in CRC tissues and cell lines. Through functional experiments, we found that reduced levels of FEZF1-AS1 significantly suppressed CRC cell migration, invasion, and proliferation and inhibited tumor growth in vivo. Mechanistically, we discovered that reduced levels of the lncRNA FEZF1-AS1 inhibited the activation of epithelial-mesenchymal transition (EMT); the overexpression of orthodenticle homeobox 1 (OTX1) partially rescued the FEZF1-AS1-induced inhibition of protein expression. It indicated that FEZF1-AS1 may play a role in the occurrence and development of CRC by regulating the FEZF1-AS1/OTX1/EMT pathway. Furthermore, it was reported that FEZF1-AS1 is located in both the nucleus and cytoplasm of HCT116 cells. Dual-luciferase reporter assays verified that FEZF1-AS1 directly binds miR-30a-5p and negatively regulated each other. Further, we showed that 5'-nucleotidase ecto (NT5E) is a direct target of miR-30a-5p, and the inhibition of miR-30a-5p expression partially rescued the inhibitory effect of FEZF1-AS1 on NT5E. Our results indicated that the mechanism by which FEZF1-AS1 positively regulates the expression of NT5E is through sponging miR-30a-5p. Our study demonstrated that lncRNA FEZF1-AS1 is involved in the development of CRC and may serve as a diagnostic and therapeutic target for CRC patients.
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Affiliation(s)
- Jing Li
- Medical Examination Center, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor HospitalShijiazhuang, HebeiP.R. China
| | - Lian-Mei Zhao
- Research Center, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor HospitalShijiazhuang, HebeiP.R. China
| | - Cong Zhang
- Research Center, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor HospitalShijiazhuang, HebeiP.R. China
| | - Meng Li
- Pediatric Surgery, The Second Hospital of Hebei Medical UniversityShijiazhuang, HebeiP.R. China
| | - Bo Gao
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor HospitalShijiazhuang, HebeiP.R. China
| | - Xu-Hua Hu
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor HospitalShijiazhuang, HebeiP.R. China
| | - Jian Cao
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor HospitalShijiazhuang, HebeiP.R. China
| | - Gui-Ying Wang
- The Second General Surgery, Hebei Medical University Fourth Affiliated Hospital and Hebei Provincial Tumor HospitalShijiazhuang, HebeiP.R. China
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156
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Roychowdhury A, Samadder S, Das P, Mazumder DI, Chatterjee A, Addya S, Mondal R, Roy A, Roychoudhury S, Panda CK. Deregulation of H19 is associated with cervical carcinoma. Genomics 2019; 112:961-970. [PMID: 31229557 DOI: 10.1016/j.ygeno.2019.06.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 05/06/2019] [Accepted: 06/11/2019] [Indexed: 12/20/2022]
Abstract
CACX is one of the most common cancer affecting women world-wide. Here, expression microarray analysis revealed 8 over-expressed transcribed pseudogenes (GBP1P1, HLA-DRB6, HLA-H, SLC6A10P, NAPSB, KRT16P2, PTTG3P and RNF126P1), down-regulated 7 lincRNAs (H19, MIR100HG, MEG3, DIO3OS, HOXA11-AS, CD27-AS1 and EPB41L4A-AS) and 6 snoRNAs (SNORD97, SNORD3A, SNORD3C, SNORD3D, SNORA12 and SCARNA9) as DEncGs (log2 fold-change ≥ ±1.0) in CACX. Consequently, down-regulation of lincRNA MEG3 and over-expression of pseudogenes, GBP1P1 and PTTG3P in the microarray analysis were found concordant with the real-time quantitative PCR results upon validation. Then, Ingenuity® Pathway analysis (IPA®) analysis with deregulated DEncGs identified functionally important gene, H19. Further, validation (n = 52) of expression confirmed frequent downregulation of H19 with significant association with its deletion (LOH) and promoter methylation (n = 128) in CACX. Moreover, clinicopathological analysis found Indian CACX patients (n = 26) with alterations of H19 by deletion or, promoter methylation with concomitant low expression have poor prognosis.
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Affiliation(s)
- Anirban Roychowdhury
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, India
| | - Sudip Samadder
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, India
| | - Pijush Das
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | | | | | - Sankar Addya
- Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Ranajit Mondal
- Department of Gynecology Oncology, Chittaranjan National Cancer Institute, Kolkata, India
| | - Anup Roy
- Department of Pathology, Nil Ratan Sircar Medical College and Hospital, Kolkata, India
| | | | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, India.
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157
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Zong Z, Song Y, Xue Y, Ruan X, Liu X, Yang C, Zheng J, Cao S, Li Z, Liu Y. Knockdown of LncRNA SCAMP1 suppressed malignant biological behaviours of glioma cells via modulating miR-499a-5p/LMX1A/NLRC5 pathway. J Cell Mol Med 2019; 23:5048-5062. [PMID: 31207033 PMCID: PMC6653555 DOI: 10.1111/jcmm.14362] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/24/2019] [Accepted: 04/15/2019] [Indexed: 12/13/2022] Open
Abstract
Dysregulation of long non‐coding RNAs (lncRNAs) confirm that it plays a crucial role in tumourigenesis and malignant progression of glioma. The present study demonstrated that LncRNA secretory carrier membrane protein 1 (SCAMP1) was up‐regulated and functioned as an oncogene in glioma cells. In addition, miR‐499a‐5p was down‐regulated meanwhile exerted tumour‐suppressive function in glioma cells. Subsequently, inhibition of SCAMP1 significantly restrained the cell proliferation, migration and invasion, as well as promoted apoptosis by acting as a molecular sponge of miR‐499a‐5p. Transcription factor LIM homeobox transcription factor 1, alpha (LMX1A) was overexpressed in glioma tissues and cells. Moreover, miR‐499a‐5p targeted LMX1A 3′‐UTR in a sequence‐specific manner. Hence, down‐regulation of SCAMP1 remarkably reduced the expression level of LMX1A, indicating that LMX1A participated in miR‐499a‐5p‐induced tumour‐suppressive effects on glioma cells. Furthermore, knockdown of LMX1A decreased NLR family, CARD domain containing 5 (NLRC5) mRNA and protein expression levels through directly binding to the NLRC5 promoter region. Down‐regulation of NLRC5 obviously inhibited malignant biological behaviours of glioma cells through attenuating the activity of Wnt/β‐catenin signalling pathway. In conclusion, our study clarifies that SCAMP1/miR‐499a‐5p/LMX1A/NLRC5 axis plays a critical role in modulating malignant progression of glioma cells, which provide a novel therapeutic strategy for glioma treatment.
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Affiliation(s)
- Zheqi Zong
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Yichen Song
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Xuelei Ruan
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Shuo Cao
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
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158
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Liang Z, Wang Y, Li H, Sun Y, Gong Y. lncRNAs combine and crosstalk with NSPc1 in ATRA-induced differentiation of U87 glioma cells. Oncol Lett 2019; 17:5821-5829. [PMID: 31186810 DOI: 10.3892/ol.2019.10254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 02/04/2019] [Indexed: 12/24/2022] Open
Abstract
Nervous system polycomb 1 (NSPc1) is a member of the polycomb group (PcG) family of proteins and has been demonstrated to maintain the differentiation and pluripotency of stem cells. Long non-coding RNAs (lncRNAs) have been demonstrated to be involved in the control of pluripotency and differentiation in embryonic and pluripotent cells. In the present study, the expression levels of NSPc1 were associated with the malignant potential of various glioma cell lines. Additionally, lncRNAs were differentially expressed in glioblastoma cell lines. Following induced differentiation of U87 glioblastoma cells with all-trans retinoic acid, the expression levels of NSPc1 decreased initially, reaching its lowest point on day 6, but then subsequently increased until day 10. The expression of lncRNA candidates decreased in the cell differentiation stage. Additionally, the expression of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), sex-determining region of the Y chromosome-box 2 overlapping transcript (SOX2OT) and antisense non-coding RNA in the INK4 locus (ANRIL) was significantly altered relative to the expression levels of NSPc1. RNA immunoprecipitation (RIP) assays demonstrated that MALAT1, SOX2OT and ANRIL bind to NSPc1 in U87 glioblastoma cells and the enrichment of ANRIL in anti-NSPc1 antibody group was associated with the expression levels of NSPc1 during U87 cell differentiation. Small interfering RNA mediated downregulation of NSPc1 expression with MALAT1, SOX2OT and ANRIL, inhibited the proliferation, and promoted apoptosis in U87 cells. The results of the present study demonstrate that MALAT1, SOX2OT and ANRIL combine and crosstalk with NSPc1 in U87 cells to affect proliferation and apoptosis.
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Affiliation(s)
- Zhikong Liang
- Department of Immunology, Logistics University of Chinese People's Armed Police Force, Tianjin 300309, P.R. China.,Jiangsu Provincial Corps Hospital of Chinese People's Armed Police Force, Yangzhou 225003, P.R. China
| | - Yuliang Wang
- Department of Biochemistry and Molecular Biology, Logistics University of Chinese People's Armed Police Force, Tianjin 300309, P.R. China.,Sixth Detachment of Second Mobile Corps of Chinese People's Armed Police Force, Guangzhou 510812, P.R. China
| | - Hui Li
- Department of Histology and Embryology, Logistics University of Chinese People's Armed Police Force, Tianjin 300309, P.R. China
| | - Yi Sun
- Department of Immunology, Logistics University of Chinese People's Armed Police Force, Tianjin 300309, P.R. China
| | - Yanhua Gong
- Department of Biochemistry and Molecular Biology, Logistics University of Chinese People's Armed Police Force, Tianjin 300309, P.R. China.,Institute of Disaster Medicine, Tianjin University, Tianjin 300072, P.R. China
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159
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Guan Y, Bhandari A, Xia E, Yang F, Xiang J, Wang O. lncRNA FOXD3-AS1 is associated with clinical progression and regulates cell migration and invasion in breast cancer. Cell Biochem Funct 2019; 37:239-244. [PMID: 31017311 DOI: 10.1002/cbf.3393] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 04/01/2019] [Indexed: 12/24/2022]
Abstract
For women, breast cancer is the most commonly diagnosed cancer and the leading cause of women deaths due to cancer. In recent years, increasing long noncoding RNA (lncRNA) has been discovered to be related to tumorigenesis, progression, and prognosis. FOXD3-AS1 is a lncRNA and has been identified as a cancer-promoting gene in glioma. By analysing the FOXD3-AS1 expression in The Cancer Genome Atlas (TCGA) database, we found that FOXD3-AS1 has significantly high expression in breast cancer tumour comparing with the normal tissue. And patients with low FOXD3-AS1 expression had greater survival probability, smaller tumour size, and less distant metastasis. This leads us to peep inquisitively biological function of FOXD3-AS1 in breast cancer. Biological assays demonstrated that silenced FOXD3-AS1 impaired cell proliferation and inhibited cell migration and invasion in breast cancer cell lines (BT549, MDA-MB-231). These results suggest that FOXD3-AS1 could play a potential diagnostics or prognostic biomarker for patients with breast cancer. SIGNIFICANCE OF THE STUDY: We demonstrated that lncRNA FOXD3-AS1 has significantly high expression in breast cancer cell lines comparing with the normal tissue. Besides, our findings suggested that lncRNA FOXD3-AS1 could play a potential diagnostics or prognostic biomarker for patients with breast cancer.
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Affiliation(s)
- Yaoyao Guan
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Adheesh Bhandari
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Erjie Xia
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Fan Yang
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Jingjing Xiang
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Ouchen Wang
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, PR China
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160
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Vastrad C, Vastrad B. Investigation into the underlying molecular mechanisms of non-small cell lung cancer using bioinformatics analysis. GENE REPORTS 2019. [DOI: 10.1016/j.genrep.2019.100394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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161
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Wu Y, Shao A, Wang L, Hu K, Yu C, Pan C, Zhang S. The Role of lncRNAs in the Distant Metastasis of Breast Cancer. Front Oncol 2019; 9:407. [PMID: 31214490 PMCID: PMC6555305 DOI: 10.3389/fonc.2019.00407] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/30/2019] [Indexed: 12/29/2022] Open
Abstract
Breast cancer (BC) remains the most frequently diagnosed cancer worldwide. Among breast cancer patients, distant metastasis and invasion is the leading cause of BC related death. Recently, long non-coding RNAs (lncRNAs), which used to be considered a genetic byproduct (owing to their unknown biological function), have been reported to be highly implicated in the development and progression of BC. In this review, we produce a summary of the functions and mechanisms of lncRNAs implicated in the different distant metastases of BC. The functions of lncRNAs have been divided into two types: oncogenic type and tumor suppressor. Furthermore, the majority of them exert their roles through the regulation of invasion, migration, epithelial-mesenchymal transition (EMT), and the metastasis process. In the final part, we briefly addressed future research prospects of lncRNAs, especially the testing methods through which to detect lncRNAs in the clinical work, and introduced several different tools with which to detect lncRNAs more conveniently. Although lncRNA research is still in the initial stages, it is a promising prognosticator and a novel therapeutic target for BC metastasis, which requires more research in the future.
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Affiliation(s)
- Yinan Wu
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Anwen Shao
- Department of Neurosurgery, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Liangliang Wang
- Interdisciplinary Institute of Neuroscience and Technology, Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, China
| | - Kaimin Hu
- Department of Surgical Oncology, School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Chengcheng Yu
- Department of Orthopedics, School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Chi Pan
- Department of Surgical Oncology, School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Suzhan Zhang
- Department of Surgical Oncology, School of Medicine, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
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162
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Yang J, Wang X. Role of long non-coding RNAs in lymphoma: A systematic review and clinical perspectives. Crit Rev Oncol Hematol 2019; 141:13-22. [PMID: 31202125 DOI: 10.1016/j.critrevonc.2019.05.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 05/04/2019] [Accepted: 05/10/2019] [Indexed: 12/26/2022] Open
Abstract
Long non-coding RNAs (lncRNAs), are over 200 nucleotides in length, and they rarely act as templates for protein synthesis. Mounting studies have shown that lncRNAs play a crucial regulatory role in various processes that sustain life, such as epigenetic regulation, cell cycle control, splicing, and post-transcriptional regulation. LncRNAs were aberrantly expressed in most hematological malignancies including lymphoma, participating in tumor suppression or promoting oncogenesis and modulating key genes in different pathways. The specific expression patterns of lncRNAs in lymphoma make them good candidates to be used as diagnostic biomarkers or as therapeutic targets. LncRNAs can be targeted by multiple approaches including nucleic acid therapeutics, CRISPR/Cas genome editing techniques, small molecule inhibitors, and gene therapy. Efforts are made to develop therapeutic strategies aimed at targeting lncRNAs, but there are still some avenues to be covered before they can be applied to the clinical treatment of lymphoma.
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Affiliation(s)
- Juan Yang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, China; School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, China; School of Medicine, Shandong University, Jinan, Shandong, 250012, China; Shandong Provincial Engineering Research Center of Lymphoma, Jinan, Shandong, 250021, China; Key Laboratory for Kidney Regeneration of Shandong Province, Jinan, Shandong, 250021, China.
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163
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Malakar P, Stein I, Saragovi A, Winkler R, Stern-Ginossar N, Berger M, Pikarsky E, Karni R. Long Noncoding RNA MALAT1 Regulates Cancer Glucose Metabolism by Enhancing mTOR-Mediated Translation of TCF7L2. Cancer Res 2019; 79:2480-2493. [PMID: 30914432 DOI: 10.1158/0008-5472.can-18-1432] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 01/10/2019] [Accepted: 03/20/2019] [Indexed: 12/27/2022]
Abstract
Reprogrammed glucose metabolism of enhanced aerobic glycolysis (or the Warburg effect) is known as a hallmark of cancer. The roles of long noncoding RNAs (lncRNA) in regulating cancer metabolism at the level of both glycolysis and gluconeogenesis are mostly unknown. We previously showed that lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) acts as a proto-oncogene in hepatocellular carcinoma (HCC). Here, we investigated the role of MALAT1 in regulating cancer glucose metabolism. MALAT1 upregulated the expression of glycolytic genes and downregulated gluconeogenic enzymes by enhancing the translation of the metabolic transcription factor TCF7L2. MALAT1-enhanced TCF7L2 translation was mediated by upregulation of SRSF1 and activation of the mTORC1-4EBP1 axis. Pharmacological or genetic inhibition of mTOR and Raptor or expression of a hypophosphorylated mutant version of eIF4E-binding protein (4EBP1) resulted in decreased expression of TCF7L2. MALAT1 expression regulated TCF7L2 mRNA association with heavy polysomes, probably through the TCF7L2 5'-untranslated region (UTR), as determined by polysome fractionation and 5'UTR-reporter assays. Knockdown of TCF7L2 in MALAT1-overexpressing cells and HCC cell lines affected their metabolism and abolished their tumorigenic potential, suggesting that the effects of MALAT1 on glucose metabolism are essential for its oncogenic activity. Taken together, our findings suggest that MALAT1 contributes to HCC development and tumor progression by reprogramming tumor glucose metabolism. SIGNIFICANCE: These findings show that lncRNA MALAT1 contributes to HCC development by regulating cancer glucose metabolism, enhancing glycolysis, and inhibiting gluconeogenesis via elevated translation of the transcription factor TCF7L2.
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Affiliation(s)
- Pushkar Malakar
- Department of Biochemistry and Molecular Biology, Institute for Medical Research Israel Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ilan Stein
- The Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), Jerusalem, Israel
- Department of Pathology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Amijai Saragovi
- The Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), Jerusalem, Israel
- Department of Pathology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Roni Winkler
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Noam Stern-Ginossar
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Michael Berger
- The Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), Jerusalem, Israel
- Department of Pathology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Eli Pikarsky
- The Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), Jerusalem, Israel
- Department of Pathology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Rotem Karni
- Department of Biochemistry and Molecular Biology, Institute for Medical Research Israel Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel.
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164
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Tang XJ, Wang W, Hann SS. Interactions among lncRNAs, miRNAs and mRNA in colorectal cancer. Biochimie 2019; 163:58-72. [PMID: 31082429 DOI: 10.1016/j.biochi.2019.05.010] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023]
Abstract
Long non-coding RNAs (lncRNAs) are longer than 200 nts non-coding transcripts and have recently emerged as one of the largest and significantly diverse RNA families whereas microRNAs (miRNAs) are highly conserved short single-stranded ncRNAs (∼18-22 nucleotides). As families of small and long evolutionarily conserved ncRNAs, lncRNAs activate and repress genes via a variety of mechanisms at both transcriptional and translational levels, while miRNAs regulate protein-coding gene expression mainly through mRNA degradation or silencing, These ncRNAs have been proved to be involved in multiple biological functions, such as proliferation, differentiation, migration, angiogenesis and apoptosis. Today, while majority of studies have focused on defining the regulatory functions of lncRNAs and miRNAs, limited information have now available for the mutual regulations of lncRNAs, miRNAs and mRNA. Thus, the underlying molecular mechanisms, in particularly the interactions among lncRNAs, miRNAs and mRNA in development, growth, metastasis and therapeutic potential of cancer still remain obscure. Colorectal cancer (CRC) is known as the third most common and fourth leading cancer death worldwide. Increasing evidence showed the close correlations among aberrant expressions of lncRNAs, miRNAs and the occurrence, development of CRC. This review summarize the potential links among these RNAs in following three areas: 1, The biogenesis and roles of miRNAs in CRC; 2, The biogenesis and functions of lncRNAs in CRC; 3, The interactions among lncRNAs, miRNAs and mRNA in tumorigensis, growth, progression, EMT formation, chemoradiotherapy resistance, and therapeutic potential in CRC. We believe that identifying diverging lncRNAs, miRNAs and relevant genes, their interactions and complex molecular regulatory networks will provide important clues for understanding the mechanism and developing novel diagnostic and therapeutic strategies for CRC. Further efforts are warranted to bring the promise of regulating their activities into clinical utilities.
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Affiliation(s)
- Xiao Juan Tang
- Laboratory of Tumor Biology, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China
| | - Wei Wang
- Department of Gastrointestinal Surgery, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China.
| | - Swei Sunny Hann
- Laboratory of Tumor Biology, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Clinical Collage of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China.
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165
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Li J, Liu R, Tang S, Feng F, Wang X, Qi L, Liu C, Yao Y, Sun C. The effect of long noncoding RNAs HOX transcript antisense intergenic RNA single-nucleotide polymorphisms on breast cancer, cervical cancer, and ovarian cancer susceptibility: A meta-analysis. J Cell Biochem 2019; 120:7056-7067. [PMID: 30484890 DOI: 10.1002/jcb.27975] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 10/04/2018] [Indexed: 01/24/2023]
Abstract
Recent studies have shown that long noncoding RNAs (lncRNA) HOX transcript antisense intergenic RNA (HOTAIR) polymorphisms are associated with cancer susceptibility. The greatest threat to women's health among a variety of cancers is breast cancer (BC), cervical cancer (CC), and ovarian cancer (OC), and the incidence of it is increasing. We performed a meta-analysis to clarify the relationship between lncRNA HOTAIR expression and BC, CC, and OC susceptibility. We thoroughly searched PubMed, Embase, and the Cochrane Library to obtain the relevant literature. We extracted data from case groups and control groups for each single-nucleotide polymorphism (SNP) (rs4759314, rs920778, rs189663, rs12826786, rs7958904, and rs874945) and compared the relationship between alleles, codominance models, dominant and invisible models and BC, CC, and OC susceptibility. Our study included 11 studies with a total of 5322 patients. There was a significant association between the rs4759314 polymorphism of HOTAIR and susceptibility to BC, CC, and OC (codominant model: AG/AA odds ratio [OR] = 1.13 [95% confidence intervals [CI], 1.00-1.29], GG/AA OR = 1.54 [95% CI, 1.06-2.23]; dominant model: GG + AG/AA OR = 1.16 [95% CI, 1.02-1.32]; and recessive model: GG/AA + AG OR = 1.51 [95% CI, 1.05-2.19]). The association between the expression of rs920778 and BC, CC, and OC susceptibility was not clear (alleles T/C: OR = 1.28 [95% CI, 0.87-1.89]; in codominant model: CT/CC OR = 1.10, [95% CI, 0.71-1.71], TT/CC OR = 1.29 [95% CI, 0.59-2.80]; dominant model: TC + TT/CC OR = 1.16, [95% CI, 0.73-1.86]; and recessive model: TT/TC + CC OR = 1.43, [95% CI, 0.83-2.47]). HOTAIR polymorphism rs1899663 was associated with BC, CC, and OC susceptibility to a certain extent, (alleles T/G OR = 0.90 [95% CI, 0.69-1.16]; in the codominant model: GT/GG OR = 0.81 [95% CI, 0.50-1.30], TT/GG OR = 1.04 [95% CI, 0.63-1.72]; dominant model: GT + TT/GG OR = 0.82 [95% CI, 0.52-1.29]; and recessive model: TT/GT + GG OR = 1.21 [95% CI, 0.76-1.94]). The rs12826786, rs7958904, and rs874945 polymorphisms were associated with a certain degree of BC, CC, and OC susceptibility, but they were not statistically significant. HOTAIR rs4759314 increased susceptibility to BC, CC, and OC in some patients; rs029778 and rs1899663 also increased susceptibility to some extent. SNPs rs12826786, rs7958904, and rs874945 did not correlate with an effect on patient susceptibility to BC, CC, and OC.
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Affiliation(s)
- Jia Li
- School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Ruijuan Liu
- Oncology Department, Weifang Traditional Chinese Hospital, Weifang, Shandong, China
| | - Shifeng Tang
- Oncology Department, Weifang Traditional Chinese Hospital, Weifang, Shandong, China
| | - Fubin Feng
- Oncology Department, Weifang Traditional Chinese Hospital, Weifang, Shandong, China
| | - Xue Wang
- School of Basicl Medicine, Qingdao University, Qingdao, Shandong, China
| | - Lingyu Qi
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Cun Liu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yan Yao
- School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Changgang Sun
- Department of Oncology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
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166
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Xiao L, Gorospe M, Wang JY. Long noncoding RNAs in intestinal epithelium homeostasis. Am J Physiol Cell Physiol 2019; 317:C93-C100. [PMID: 31042423 DOI: 10.1152/ajpcell.00092.2019] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The epithelium of the mammalian intestinal mucosa is a rapidly self-renewing tissue in the body, and its homeostasis is preserved through well-controlled mechanisms. Long noncoding RNAs (lncRNAs) regulate a variety of biological functions and are intimately involved in the pathogenesis of diverse human diseases. Here we highlight the roles of several lncRNAs expressed in the intestinal epithelium, including uc.173, SPRY4-IT1, H19, and Gata6, in maintaining the integrity of the intestinal epithelium, focusing on the emerging evidence of lncRNAs in the regulation of intestinal mucosal regeneration and epithelial barrier function. We also discuss recent results that the interactions between lncRNAs with microRNAs and the RNA-binding protein HuR influence epithelial homeostasis. With rapidly advancing knowledge of lncRNAs, there is also growing recognition that lncRNAs in the intestinal epithelium might be promising therapeutic targets in our efforts to protect the integrity of the intestinal epithelium in response to stressful environments.
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Affiliation(s)
- Lan Xiao
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine , Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center , Baltimore, Maryland
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging-Intramural Research Program, National Institutes of Health , Baltimore, Maryland
| | - Jian-Ying Wang
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine , Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center , Baltimore, Maryland.,Department of Pathology, University of Maryland School of Medicine , Baltimore, Maryland
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167
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Wu W, Gao H, Li X, Zhu Y, Peng S, Yu J, Zhan G, Wang J, Liu N, Guo X. LncRNA TPT1-AS1 promotes tumorigenesis and metastasis in epithelial ovarian cancer by inducing TPT1 expression. Cancer Sci 2019; 110:1587-1598. [PMID: 30941821 PMCID: PMC6500995 DOI: 10.1111/cas.14009] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 02/01/2019] [Accepted: 03/03/2019] [Indexed: 01/01/2023] Open
Abstract
Increasing numbers of studies have confirmed that long noncoding RNA (lncRNA) play a critical role in epithelial ovarian cancer (EOC) progression. However, the potential function of the lncRNA tumor protein translationally controlled 1 (TPT1) antisense RNA 1 (TPT1-AS1) in EOC is unclear. In this study, we aimed to uncover the biological roles and regulatory mechanisms of TPT1-AS1 in EOC progression and metastasis. First, TPT1-AS1 expression was significantly higher in EOC metastatic tissue and cell lines than in their respective control counterparts. In addition, ectopic TPT1-AS1 expression was strongly associated with unfavorable EOC clinicopathological features, including FIGO stage, tumor size and tumor differentiation. TPT1-AS1 overexpression remarkably induced cell proliferation, migration and invasion, and significantly attenuated cell adhesion ability in vitro and facilitated nude mouse subcutaneous xenograft growth and intraperitoneal metastasis in vivo, while the downregulation of TPT1-AS1 expression produced the opposite effect in vitro. Mechanistically, TPT1-AS1 was proven to be primarily distributed in EOC cell nuclei and positively modulated TPT1 promoter activity and transcription. Moreover, the oncogenic effects of TPT1-AS1 could be reversed by TPT1 depletion, and the PI3K/AKT signaling pathway downstream of TPT1 was also altered. These results suggested that TPT1-AS1 induced EOC tumor growth and metastasis through TPT1 and downstream PI3K/AKT signaling and that TPT1-AS1 may be a promising therapeutic target for EOC.
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MESH Headings
- Animals
- Female
- Humans
- Mice
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Ovarian Epithelial/genetics
- Carcinoma, Ovarian Epithelial/metabolism
- Carcinoma, Ovarian Epithelial/pathology
- Cell Adhesion
- Cell Line, Tumor
- Cell Movement
- Cell Proliferation
- Cell Survival
- Gene Expression Regulation, Neoplastic
- Neoplasm Metastasis
- Neoplasm Transplantation
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/metabolism
- Ovarian Neoplasms/pathology
- Phosphatidylinositol 3-Kinases/metabolism
- Promoter Regions, Genetic
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Long Noncoding/genetics
- Signal Transduction
- Tumor Protein, Translationally-Controlled 1
- Up-Regulation
- RNA, Antisense
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Affiliation(s)
- Weimin Wu
- Department of Obstetrics and GynecologyShanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina
| | - Hao Gao
- Department of Obstetrics and GynecologyShanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina
| | - Xiaofeng Li
- Department of Obstetrics and GynecologyShanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina
| | - Yong Zhu
- Department of Obstetrics and GynecologyThe First Affiliated HospitalShihezi University School of MedicineXinjiangChina
| | - Shumin Peng
- Chongqing Health Center for Women and ChildrenChongqingChina
| | - Jing Yu
- Department of PathologyShanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina
| | - Guangxi Zhan
- Department of Obstetrics and GynecologyShanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina
| | - Jiapo Wang
- Department of Obstetrics and GynecologyShanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina
| | - Na Liu
- Department of Obstetrics and GynecologyShanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina
| | - Xiaoqing Guo
- Department of Obstetrics and GynecologyShanghai First Maternity and Infant HospitalTongji University School of MedicineShanghaiChina
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168
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Chen Z, Yu W, Zhou Q, Zhang J, Jiang H, Hao D, Wang J, Zhou Z, He C, Xiao Z. A Novel lncRNA IHS Promotes Tumor Proliferation and Metastasis in HCC by Regulating the ERK- and AKT/GSK-3β-Signaling Pathways. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 16:707-720. [PMID: 31128422 PMCID: PMC6535504 DOI: 10.1016/j.omtn.2019.04.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 04/19/2019] [Accepted: 04/19/2019] [Indexed: 02/06/2023]
Abstract
Long noncoding RNAs (lncRNAs) are involved in a variety of biological processes such as tumor proliferation and metastasis. A close relationship between hepatitis B virus X protein (HBx) and SMYD3 in promoting the proliferation and metastasis of hepatocellular carcinoma (HCC) was recently reported. However, the exact oncogenic mechanism of HBx-SMYD3 remains unknown. In this study, by performing lncRNA microarray analysis, we identified a novel lncRNA that was regulated by both HBx and SMYD3, and we named it lncIHS (lncRNA intersection between HBx microarray and SMYD3 microarray). lncIHS was overexpressed in HCC and decreased the survival rate of HCC patients. Knockdown of lncIHS inhibited HCC cell migration, invasion, and proliferation, and vice versa. Further study showed that lncIHS positively regulated the expression of epithelial mesenchymal transition (EMT)-related markers c-Myc and Cyclin D1, as well as the activation of the ERK- and AKT-signaling pathways. lncIHS exerted its oncogenic effect through ERK and AKT signaling. Moreover, results from transcriptome-sequencing analysis and mass spectrometry showed that lncIHS regulated multiple genes that were the upstream molecules of the ERK- and AKT-signaling pathways. Therefore, our findings suggest a regulatory network of ERK and AKT signaling through lncIHS, which is downstream of HBx-SMYD3, and they indicate that lncIHS may be a potential target for treating HCC.
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Affiliation(s)
- Zheng Chen
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Wei Yu
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Qiming Zhou
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Jianlong Zhang
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Hai Jiang
- Department of General Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Dake Hao
- Surgical Bioengineering Laboratory, Department of Surgery, School of Medicine, University of California, Davis, Sacramento, CA 95817, USA
| | - Jie Wang
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Zhenyu Zhou
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.
| | - Chuanchao He
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.
| | - Zhiyu Xiao
- Guangdong Province Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.
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169
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Xu K, Zhang Z, Qian J, Wang S, Yin S, Xie H, Zhou L, Zheng S. LncRNA FOXD2-AS1 plays an oncogenic role in hepatocellular carcinoma through epigenetically silencing CDKN1B(p27) via EZH2. Exp Cell Res 2019; 380:198-204. [PMID: 31004581 DOI: 10.1016/j.yexcr.2019.04.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 04/10/2019] [Accepted: 04/14/2019] [Indexed: 01/16/2023]
Abstract
Accumulating reports suggest that long noncoding RNAs (lncRNAs) play critical roles in the progression of many tumors. In this study, we explored the expression level of lncRNA FOXD2-AS1 in the tumorigenesis of hepatocellular carcinoma (HCC). The data indicated that FOXD2-AS1 expression was increased in HCC specimens and cell lines. Furthermore, aberrant expression was correlated with tumor number and tumor size in HCC patients. Silencing FOXD2-AS1 arrest cell cycle in the G0/G1 phase, inhibited colony formation, cell proliferation and suppressed the in vivo growth of subcutaneous tumors. Our results revealed that FOXD2-AS1 could epigenetically silence CDKN1B by recruiting EZH2 to CDKN1B promoter region. Knocking down CDKN1B could restore the carcinogenic effect of FOXD2-AS1 on HCC. Collectively, our data suggested that FOXD2-AS1 could be new target for therapies or prognostic biomarker in hepatocellular carcinoma.
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Affiliation(s)
- Kangdi Xu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery First Affiliated Hospital, School of Medicine, Zhejiang University, PR China; NHFPC Key Laboratory of Combined Multi-organ Transplantation, PR China; Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, PR China; Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, PR China
| | - Zhihao Zhang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery First Affiliated Hospital, School of Medicine, Zhejiang University, PR China; NHFPC Key Laboratory of Combined Multi-organ Transplantation, PR China; Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, PR China; Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, PR China
| | - Junjie Qian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery First Affiliated Hospital, School of Medicine, Zhejiang University, PR China; NHFPC Key Laboratory of Combined Multi-organ Transplantation, PR China; Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, PR China; Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, PR China
| | - Shuai Wang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery First Affiliated Hospital, School of Medicine, Zhejiang University, PR China; NHFPC Key Laboratory of Combined Multi-organ Transplantation, PR China; Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, PR China; Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, PR China
| | - Shengyong Yin
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, PR China; Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, PR China; Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, PR China
| | - Haiyang Xie
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, PR China; Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, PR China; Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, PR China
| | - Lin Zhou
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, PR China; Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, PR China; Collaborative Innovation Center for Diagnosis Treatment of Infectious Diseases, Hangzhou, Zhejiang, 310003, PR China.
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery First Affiliated Hospital, School of Medicine, Zhejiang University, PR China; NHFPC Key Laboratory of Combined Multi-organ Transplantation, PR China; Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Chinese Academy of Medical Sciences, PR China; Key Laboratory of Organ Transplantation, Zhejiang Province, Hangzhou, PR China; Collaborative Innovation Center for Diagnosis Treatment of Infectious Diseases, Hangzhou, Zhejiang, 310003, PR China.
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170
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Li Y, Zhang D, Zhang Y, Xu X, Bi L, Zhang M, Yu B, Zhang Y. Association of lncRNA polymorphisms with triglyceride and total cholesterol levels among myocardial infarction patients in Chinese population. Gene 2019; 724:143684. [PMID: 30898706 DOI: 10.1016/j.gene.2019.02.085] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 01/21/2019] [Accepted: 02/22/2019] [Indexed: 01/02/2023]
Abstract
AIM The long noncoding RNAs (lncRNAs) have gradually been reported to be an important class of RNAs with pivotal roles in the development and progression of myocardial infarction (MI). In this study, we hypothesized that genetic variant of cyclin-dependent kinase inhibitor 2B antisense RNA (ANRIL) and metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) may affect the prognosis of MI patients. METHODS The study included 401 Han Chinese MI patients and 409 controls. Four lncRNA tag single nucleotide polymorphisms (SNPs)-ANRIL rs9632884 and rs1537373, MALAT1 rs619586 and rs3200401-were selected. SNP genotyping was performed by an improved multiplex ligation detection reaction assay. RESULTS rs9632884 and rs3200401 SNPs were significantly associated with lipid levels in both controls and MI patients (P < 0.003-0.046). Several SNPs interacted with sex and age to modify total cholesterol, low-density lipoprotein cholesterol, and creatinine levels to modify the risk of MI. No association between the lncRNAs SNPs and susceptibility to MI was found (P > 0.05 for all). CONCLUSIONS Taken together, this study provides additional evidence that genetic variation of the ANRIL rs9632884 and MALAT1 rs3200401 can mediate lipid levels in MI patients.
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Affiliation(s)
- Yilan Li
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, China
| | - Dandan Zhang
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, China
| | - Yanxiu Zhang
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Xueming Xu
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Lei Bi
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Meiling Zhang
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, China
| | - Bo Yu
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, China
| | - Yao Zhang
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China; Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150001, China.
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171
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Linking Binary Gene Relationships to Drivers of Renal Cell Carcinoma Reveals Convergent Function in Alternate Tumor Progression Paths. Sci Rep 2019; 9:2899. [PMID: 30814637 PMCID: PMC6393532 DOI: 10.1038/s41598-019-39875-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/28/2019] [Indexed: 12/30/2022] Open
Abstract
Renal cell carcinoma (RCC) subtypes are characterized by distinct molecular profiles. Using RNA expression profiles from 1,009 RCC samples, we constructed a condition-annotated gene coexpression network (GCN). The RCC GCN contains binary gene coexpression relationships (edges) specific to conditions including RCC subtype and tumor stage. As an application of this resource, we discovered RCC GCN edges and modules that were associated with genetic lesions in known RCC driver genes, including VHL, a common initiating clear cell RCC (ccRCC) genetic lesion, and PBRM1 and BAP1 which are early genetic lesions in the Braided Cancer River Model (BCRM). Since ccRCC tumors with PBRM1 mutations respond to targeted therapy differently than tumors with BAP1 mutations, we focused on ccRCC-specific edges associated with tumors that exhibit alternate mutation profiles: VHL-PBRM1 or VHL-BAP1. We found specific blends molecular functions associated with these two mutation paths. Despite these mutation-associated edges having unique genes, they were enriched for the same immunological functions suggesting a convergent functional role for alternate gene sets consistent with the BCRM. The condition annotated RCC GCN described herein is a novel data mining resource for the assignment of polygenic biomarkers and their relationships to RCC tumors with specific molecular and mutational profiles.
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Abstract
Long noncoding RNAs (lncRNAs) have recently considered as central regulators in diverse biological processes and emerged as vital players controlling tumorigenesis. Several lncRNAs can be classified into oncogenes and tumor suppressor genes depending on their function in cancer. A maternally expressed gene 3 (MEG3) gene transcripts a 1.6 kb lncRNA whose act as an antitumor component in different cancer cells, such as breast, liver, glioma, colorectal, cervical, gastric, lung, ovarian and osteosarcoma cancer cells. The present review highlights biological function of MEG3 to repress tumor through regulating the major tumor suppressor genes p53 and Rb, inhibiting angiogenesis-related factor, or controlling miRNAs. On the other hand, previous studies have also suggested that MEG3 mediates epithelial-mesenchymal transition (EMT). However, deregulation of MEG3 is associated with the development and progression of cancer, suggesting that MEG3 may function as a potential biomarker and therapeutic target for human cancers.
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173
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Ji F, Chen B, Du R, Zhang M, Liu Y, Ding Y. Long non-coding RNA H19 promotes tumorigenesis of ovarian cancer by sponging miR-675. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:113-122. [PMID: 31933725 PMCID: PMC6944020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 10/22/2018] [Indexed: 06/10/2023]
Abstract
BACKGROUND Ovarian cancer is one of the six most common women's cancers in the world, and is found among the top three female genital tumors, which is lower than the rate of endometrial cancer and cervical cancer. METHODS This study utilized miR-675 mimics and siRNA transfection to construct miR-675 overexpression and lower-expression model to investigate the effect of miR-675 on the regulation of ovarian cancer. Western blotting and RT-qPCR were applied for the quantitative testing of mRNA and protein expression. Apoptosis of podocytes was detected by TUNEL staining. RESULTS H19 expression was also up-regulated. In vitro, H19 silencing after transfection with si-H19 could suppress proliferation and invasion. Luciferase reporter assay revealed a close link between miR-675 and H19 3'-UTR. Furthermore, combining experiments of miR-675 and H19 indicated that miR-675 could reverse the function of H19 on ovarian cancer. CONCLUSION Our study reveals the overexpression of H19 in ovarian cancer tissue and cells, and discovers an oncogenic role in ovarian cancer via sponging miR-675, providing a potential biomarker for early detection and prognosis of ovarian cancer.
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Affiliation(s)
- Fei Ji
- Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumchi, China
| | - Bing Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Xinjiang Medical UniversityUrumchi, China
| | - Rong Du
- Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumchi, China
| | - Meng Zhang
- Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumchi, China
| | - Yanjia Liu
- Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumchi, China
| | - Yan Ding
- Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical UniversityUrumchi, China
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Song J, Liu G, Wang R, Sun L, Zhang P. A novel method for predicting RNA-interacting residues in proteins using a combination of feature-based and sequence template-based methods. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1612275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Jiazhi Song
- Department of Computational intelligence College of Computer Science and Technology, Jilin University, Changchun, PR China
- Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, PR China
| | - Guixia Liu
- Department of Computational intelligence College of Computer Science and Technology, Jilin University, Changchun, PR China
- Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, PR China
| | - Rongquan Wang
- Department of Computational intelligence College of Computer Science and Technology, Jilin University, Changchun, PR China
- Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, PR China
| | - Liyan Sun
- Department of Computational intelligence College of Computer Science and Technology, Jilin University, Changchun, PR China
- Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, PR China
| | - Ping Zhang
- Department of Computational intelligence College of Computer Science and Technology, Jilin University, Changchun, PR China
- Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, PR China
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Sattarifard H, Hashemi M, Hassanzarei S, Basiri A, Narouie B, Ghavami S. Long non-coding RNA POLR2E gene polymorphisms increased the risk of prostate cancer in a sample of the Iranian population. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2018; 38:1-11. [PMID: 30587086 DOI: 10.1080/15257770.2017.1391394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The current study aimed to examine the impact of POLR2E rs1046040 and rs3787016 polymorphisms on prostate cancer (PCa) risk in a sample of southeast Iranian population. The present case-control study was performed on 178 patients with PCa and 180 benign prostatic hyperplasia (BPH). Genotyping of the variants was done by mismatch PCR-RFLP. The findings showed that the rs3787016 C > T variant significantly increased the risk of PCa in codominant (OR = 1.84, 95% CI = 1.12-3.03, P = 0.018, CT vs CC), dominant (OR = 1.88, 95% CI = 1.63-3.05, P = 0.011, CT + TT vas CC) and allele (OR = 1.77, 95% CI = 1.52-2.72, P = 0.010, T vs C) inheritance model. Regarding rs1046040 C > T polymorphism, the findings revealed that the CT genotype significantly increased the risk of PCa compared to the CC genotype (OR = 1.60, 95% CI = 1.03-2.49, P = 0.043). Furthermore, rs3787016 CT/rs1046040 CC as well as rs3787016 CT/rs1046040 CT increased the risk of PCa compared to the CC/CC genotype (p = 0.029 and p = 0.014, respectively). Haplotype analysis proposed that rs3787016 T/rs1046040 C significantly increased the risk of PCa compared to C/C (p = 0.037). No significant association was observed between POLR2E variants and clinicopathological characteristics of PCa patients. In conclusion, the findings propose that POLR2E variants may be a risk factor for susceptibility to PCa in a sample of Iranian population.
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Affiliation(s)
- Hedieh Sattarifard
- a Cellular and Molecular Research Center , Zahedan University of Medical Sciences , Zahedan , Iran.,b Department of Clinical Biochemistry, School of Medicine , Zahedan University of Medical Sciences , Zahedan , Iran
| | - Mohammad Hashemi
- a Cellular and Molecular Research Center , Zahedan University of Medical Sciences , Zahedan , Iran.,b Department of Clinical Biochemistry, School of Medicine , Zahedan University of Medical Sciences , Zahedan , Iran
| | - Shekoufeh Hassanzarei
- b Department of Clinical Biochemistry, School of Medicine , Zahedan University of Medical Sciences , Zahedan , Iran
| | - Abbas Basiri
- c Department of Urology, Urology and Nephrology Research Center, Shahid Labbafinejad Medical Center , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Behzad Narouie
- c Department of Urology, Urology and Nephrology Research Center, Shahid Labbafinejad Medical Center , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Saeid Ghavami
- d Department of Human Anatomy and Cell Science, Faculty of Health Sciences, College of Medicine , University of Manitoba , Winnipeg , Canada.,e Health Policy Research Center , Shiraz University of Medical Sciences , Shiraz , Iran
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LncRNA GAS5 regulates redox balance and dysregulates the cell cycle and apoptosis in malignant melanoma cells. J Cancer Res Clin Oncol 2018; 145:637-652. [PMID: 30569211 PMCID: PMC6394673 DOI: 10.1007/s00432-018-2820-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 12/07/2018] [Indexed: 01/09/2023]
Abstract
PURPOSE Clinical outcomes for advanced malignant melanoma (MM) are often poor due to tumor invasiveness, metastasis, recurrence, and multidrug resistance. METHODS We investigated whether apoptosis, cell cycle regulation, oxidative status, and redox balance were altered by changes in the expression of the long noncoding RNA, growth arrest-specific transcript 5 (GAS5), in MM cells. RESULTS Analysis of clinical samples from MM patients showed that the rate of reduced GAS5 expression, relative to that in adjacent noncancerous tissues, was significantly lower for tumors from patients with advanced disease (76.6%, P < 0.001), as evidenced by larger tumor size, higher TNM stage, and higher incidences of ulceration and metastasis (P < 0.001 for all). Cell culture experiments showed that siRNA-mediated knockdown of GAS5 increased the viability of A375-GAS5si cells. Flow cytometry and western blotting showed that GAS5 knockdown increased MM cell proliferation by inducing G1/S cell cycle progression through increases in Cyclin D1, CDK4, and p27 expression (P < 0.05 for all) and by inhibiting apoptosis through an increase in Bcl-2 expression (P < 0.001). Knockdown of GAS5 also increased levels of superoxide anion (P < 0.01), NADP+(P < 0.001), and oxidized glutathiones (P < 0.01) through increases in NOX4 expression (P < 0.001), G6PD expression (P < 0.01), and NOX activity (P < 0.05), and RNA co-immunoprecipitation showed that GAS5 induced these changes through a physical interaction between GAS5 and the G6PD protein. CONCLUSIONS Our findings show GAS5 contributes to regulation of the apoptosis, cell cycle, homeostasis of reactive oxygen species, and redox balance in MM cells, and suggest that reduced GAS5 expression contributes to disease progression in MM patients.
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Zhao D, Dong JT. Upregulation of Long Non-Coding RNA DRAIC Correlates with Adverse Features of Breast Cancer. Noncoding RNA 2018; 4:ncrna4040039. [PMID: 30544991 PMCID: PMC6315495 DOI: 10.3390/ncrna4040039] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 11/30/2018] [Accepted: 12/07/2018] [Indexed: 12/23/2022] Open
Abstract
DRAIC (also known as LOC145837 and RP11-279F6.1), is a long non-coding RNA associated with several types of cancer including prostate cancer, lung cancer, and breast cancer. Its expression is elevated in tumor tissues compared to adjacent benign tissues in breast cancer patients and is regulated by estrogen treatment in breast cancer cells. In addition, expression analysis of DRAIC in more than 100 cell lines showed that DRAIC expression is high in luminal and basal subtypes compared to claudin low subtype, suggesting a prognostic value of DRAIC expression in breast cancer. In the present study, we analyzed DRAIC expression in 828 invasive breast carcinomas and 105 normal samples of RNA sequencing datasets from The Cancer Genome Atlas (TCGA) and found that DRAIC expression was correlated with estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) status, and is increased in cancerous tissues. Additionally, higher DRAIC expression was associated with poorer survival of patients, especially in ER positive breast cancer. DRAIC was also investigated in the Oncomine database and we found that DRAIC expression predicted patients’ response to paclitaxel and FEC as well as lapatinib, which are commonly used therapy options for breast cancer. Finally, DRAIC expression in breast cancer was negatively correlated with immune cell infiltration. These results reinforce the importance of DRAIC in breast cancer.
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Affiliation(s)
- Dan Zhao
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Jin-Tang Dong
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, China.
- Department of Hematology and Medical Oncology, School of Medicine, Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA.
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Yang Z, Zhao S, Zhou X, Zhao H, Jiang X. PCAT-1: A pivotal oncogenic long non-coding RNA in human cancers. Biomed Pharmacother 2018; 110:493-499. [PMID: 30530229 DOI: 10.1016/j.biopha.2018.12.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 11/17/2018] [Accepted: 12/02/2018] [Indexed: 12/30/2022] Open
Abstract
Prostate cancer-associated transcript 1 (PCAT-1) is a newly identified long non-coding RNA comprising two exons, located in the Chr8q24 gene desert approximately 725 kb upstream of the MYC oncogene. PCAT-1 is dysregulated and acts as an oncogene in different types of cancers and has been implicated in several processes correlated with carcinogenesis, such as cell proliferation, invasion, metastasis, apoptosis, cell cycle, chemoresistance, and homologous recombination. The mechanisms underlying the effects of PCAT-1 are complex and involve multiple factors and signaling pathways. In this paper, we systematically review the multiple pathological functions of PCAT-1 in diverse malignancies to elucidate its potential molecular mechanisms and to provide new directions for future research.
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Affiliation(s)
- Zhi Yang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Shan Zhao
- Department of Rheumatology and Immunology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiangyu Zhou
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Haiying Zhao
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China.
| | - Xiaofeng Jiang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, China.
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Li Q, Chen K, Dong R, Lu H. LncRNA CASC2 inhibits autophagy and promotes apoptosis in non-small cell lung cancer cells via regulating the miR-214/TRIM16 axis. RSC Adv 2018; 8:40846-40855. [PMID: 35557905 PMCID: PMC9091572 DOI: 10.1039/c8ra09573f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 11/22/2018] [Indexed: 11/21/2022] Open
Abstract
Background: Dysregulated long noncoding RNAs (lncRNAs) have been frequently observed in various cancers including non-small cell lung cancer (NSCLC) and are closely associated with cancer progression. Previous studies also found that low expression of lncRNA cancer susceptibility candidate 2 (CASC2) functioned as a tumor suppressor in NSCLC. Our study aimed to explore the detailed molecular mechanism of CASC2 involved in NSCLC progression. Methods: The expressions of CASC2, tripartite motif-containing protein 16 (TRIM16) and miR-214 in NSCLC tissues and cells were detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) or western blot. Flow cytometry analysis was performed to evaluate apoptosis. Autophagy was assessed using green fluorescent protein microtubule-associated protein 1 light chain 3α (GFP-LC3) puncta analysis, acridine orange (AO) staining and western blot. Luciferase reporter assay, RNA immunoprecipitation (RIP), RNA pull-down and immunofluorescence staining were employed to explore the association between CASC2, TRIM16 and miR-214. Results: CASC2 and TRIM16 expressions were significantly downregulated and miR-214 expression was dramatically upregulated in NSCLC tissues and cells. Overexpression of CASC2 induced apoptosis and inhibited autophagy in NSCLC cells. miR-214 was bound to CASC2 and its knockdown reversed the regulatory effect of CASC2 inhibition on apoptosis and autophagy in NSCLC cells. Moreover, TRIM16 was validated as a target of miR-214 and its interference attenuated miR-214 knockdown-mediated promotion of apoptosis and inhibition of autophagy. Besides, CASC2 enhanced TRIM16 expression through functioning as a competing endogenous RNA (ceRNA) for miR-214 in NSCLC cells. Conclusion: lncRNA CASC2 inhibited autophagy and promoted apoptosis in NSCLC cells via regulating the miR-214/TRIM16 axis, shedding light on the mechanism underlying NSCLC carcinogenesis.
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Affiliation(s)
- Qian Li
- Department of Respiratory, People's Hospital of Rizhao 276800 China
| | - Kai Chen
- Department of Respiratory, People's Hospital of Rizhao 276800 China
| | - Rong Dong
- Department of Respiratory, People's Hospital of Rizhao 276800 China
| | - Hengxiao Lu
- Department of Thoracic Surgery, Weifang People's Hospital No.151, Guangwen Street, Kuiwen District Weifang 261041 China +86-0536-8192133
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Ma X, Zhou J, Liu J, Wu G, Yu Y, Zhu H, Liu J. LncRNA ANCR promotes proliferation and radiation resistance of nasopharyngeal carcinoma by inhibiting PTEN expression. Onco Targets Ther 2018; 11:8399-8408. [PMID: 30568463 PMCID: PMC6267624 DOI: 10.2147/ott.s182573] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Introduction Antidifferentiation noncoding RNA (ANCR) is a newly identified long noncoding RNA, which is reported to function as an oncogene in multiple human cancers. However, its function in nasopharyngeal carcinoma (NPC) and underlying mechanism are still unclear. Materials and methods We explored the expression of ANCR in NPC tissues and cells by real-time PCR and analyzed the relationship between ANCR expression and clinicopathological characteristics of NPC patients by Pearson's chi-squared test. Then we inhibited ANCR expression in NPC cells using siRNAs and evaluated the effect of ANCR expression on cell proliferation, colony formation, and radiosensitivity by cell counting kit-8 assay and colony formation assay. We used RT-PCR and Western blot analyses to search target genes of ANCR. Also, we used RNA immunoprecipitation (RIP) assay and chromatin immunoprecipitation assay to study the molecular mechanism in this regulation. Results We found that ANCR was upregulated in NPC tissues and cells. ANCR expression was significantly correlated with tumor size and TNM stage. Further, ANCR knockdown inhibited NPC cell growth and radiation resistance. Mechanistically, we found that PTEN was upregulated in ANCR knockdown NPC cells. In addition, RIP assay indicated that EZH2, the oncogenic histone methyltransferase of polycomb repressive complex 2, interacted with ANCR in NPC cells. More importantly, the binding of EZH2 and deposition of relevant negative histone marker H3K27me3 on PTEN promoter depended on ANCR expression. Conclusion ANCR expression is upregulated in NPC and promotes NPC growth and radiation resistance through an epigenetic regulation of PTEN expression.
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Affiliation(s)
- Xingkai Ma
- Department of Otorhinolaryngology, Zhangjiagang First People's Hospital, Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, P.R. China,
| | - Jieyu Zhou
- Department of Otorhinolaryngology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, P.R. China
| | - Jianyong Liu
- Department of Otorhinolaryngology, Zhangjiagang First People's Hospital, Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, P.R. China,
| | - Geping Wu
- Department of Otorhinolaryngology, Zhangjiagang First People's Hospital, Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, P.R. China,
| | - Yan Yu
- Department of Otorhinolaryngology, Zhangjiagang First People's Hospital, Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, P.R. China,
| | - Hongyan Zhu
- Department of Otorhinolaryngology, Zhangjiagang First People's Hospital, Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, P.R. China,
| | - Jisheng Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, P.R. China,
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Huang Y, Ni R, Wang J, Liu Y. Knockdown of lncRNA DLX6-AS1 inhibits cell proliferation, migration and invasion while promotes apoptosis by downregulating PRR11 expression and upregulating miR-144 in non-small cell lung cancer. Biomed Pharmacother 2018; 109:1851-1859. [PMID: 30551440 DOI: 10.1016/j.biopha.2018.09.151] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/17/2018] [Accepted: 09/26/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Long non-coding RNA (lncRNA) distal-less homeobox 6 antisense 1 (DLX6-AS1) was reported to be dysregulated in lung cancer. However, detailed roles of DLX6-AS1 in the pathogenesis of non-small cell lung cancer (NSCLC) were largely unknown. METHODS The expression of DLX6-AS1 was measured in NSCLC tissues and cells by quantitative real-time PCR (qRT-PCR). The abundance of proline rich 11 (PRR11) were detected by qRT-PCR and western blot, respectively. The effects of DLX6-AS1 and PRR11 on cell proliferation, migration, invasion and apoptosis were explored by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), transwell and flow cytometry analysis, respectively. Luciferase reporter assay, qRT-PCR and western blot were performed to confirm the interaction between miR-144 and DLX6-AS1 or PRR11. Tumor xenograft assay was performed to verify the role of DLX6-AS1 in NSCLC in vivo. RESULTS DLX6-AS1 and PRR11 were elevated in NSCLC tissues and cells. DLX6-AS1 was positively correlated with PRR11 mRNA expression in NSCLC tissues. Knockdown of DLX6-AS1 and PRR11 significantly suppressed cell proliferation, migration and invasion and induced apoptosis in NSCLC cells, which was reversed by PRR11 overexpression. In addition, DLX6-AS1 and PRR11 were demonstrated to interact with microRNA-144 (miR-144) and DLX6-AS1 upregulated PRR11 expression by acting as a competing endogenous RNA (ceRNA) of miR-144 in NSCLC cells. Furthermore, DLX6-AS1 knockdown suppressed tumor growth in NSCLC in vivo by upregulating miR-144 and downregulating PRR11. CONCLUSION Knockdown of DLX6-AS1 inhibited cell proliferation, migration, invasion and promoted apoptosis by downregulating PRR11 expression and upregulating miR-144 in NSCLC.
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Affiliation(s)
- Yongjie Huang
- Department of Senile Respiratory and Sleep, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Ran Ni
- Department Two of Respiratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jing Wang
- Department Two of Respiratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Ying Liu
- Department Five of Respiratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
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Roisman A, Castellano G, Navarro A, Gonzalez-Farre B, Pérez-Galan P, Esteve-Codina A, Dabad M, Heath S, Gut M, Bosio M, Bellot P, Salembier P, Oliveras A, Slavutsky I, Magnano L, Horn H, Rosenwald A, Ott G, Aymerich M, López-Guillermo A, Jares P, Martín-Subero JI, Campo E, Hernández L. Differential expression of long non-coding RNAs are related to proliferation and histological diversity in follicular lymphomas. Br J Haematol 2018; 184:373-383. [DOI: 10.1111/bjh.15656] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 09/11/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Alejandro Roisman
- Lymphoid Neoplasm Programme; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
- Laboratorio de Genética de Neoplasias Linfoides; Instituto de Medicina Experimental; CONICET-Academia Nacional de Medicina; Buenos Aires Argentina
| | | | - Alba Navarro
- Lymphoid Neoplasm Programme; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC); Barcelona Spain
| | - Blanca Gonzalez-Farre
- Lymphoid Neoplasm Programme; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
- Department of Pathology; Hospital Clínic; University of Barcelona; Barcelona Spain
| | - Patricia Pérez-Galan
- Lymphoid Neoplasm Programme; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
| | - Anna Esteve-Codina
- CNAG-CRG; Centre for Genomic Regulation (CRG); Barcelona Institute of Science and Technology (BIST); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
| | - Marc Dabad
- CNAG-CRG; Centre for Genomic Regulation (CRG); Barcelona Institute of Science and Technology (BIST); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
| | - Simon Heath
- CNAG-CRG; Centre for Genomic Regulation (CRG); Barcelona Institute of Science and Technology (BIST); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
| | - Marta Gut
- CNAG-CRG; Centre for Genomic Regulation (CRG); Barcelona Institute of Science and Technology (BIST); Barcelona Spain
- Universitat Pompeu Fabra (UPF); Barcelona Spain
| | - Mattia Bosio
- Barcelona Supercomputing Center; Barcelona Spain
| | - Pau Bellot
- Department of Signal Theory and Communications; Technical University of Catalonia UPC; Barcelona Spain
| | - Philippe Salembier
- Department of Signal Theory and Communications; Technical University of Catalonia UPC; Barcelona Spain
| | - Albert Oliveras
- Department of Signal Theory and Communications; Technical University of Catalonia UPC; Barcelona Spain
| | - Irma Slavutsky
- Laboratorio de Genética de Neoplasias Linfoides; Instituto de Medicina Experimental; CONICET-Academia Nacional de Medicina; Buenos Aires Argentina
| | - Laura Magnano
- Department of Haematology; Hospital Clínic of Barcelona; Barcelona Spain
| | - Heike Horn
- Dr. M. Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart and University of Tübingen; Stuttgart Germany
| | | | - German Ott
- Department of Clinical Pathology; Robert-Bosch Krankenhaus; Stuttgart Germany
| | - Marta Aymerich
- Haematopathology Unit; Department of Pathology; Hospital Clínic; IDIBAPS; Barcelona Spain
| | | | - Pedro Jares
- Lymphoid Neoplasm Programme; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
- Department of Pathology; Hospital Clínic; University of Barcelona; Barcelona Spain
| | - José I. Martín-Subero
- Lymphoid Neoplasm Programme; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC); Barcelona Spain
| | - Elías Campo
- Lymphoid Neoplasm Programme; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC); Barcelona Spain
- Haematopathology Unit; Department of Pathology; Hospital Clínic; IDIBAPS; Barcelona Spain
| | - Luis Hernández
- Lymphoid Neoplasm Programme; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC); Barcelona Spain
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183
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Zhang PF, Wu J, Wu Y, Huang W, Liu M, Dong ZR, Xu BY, Jin Y, Wang F, Zhang XM. The lncRNA SCARNA2 mediates colorectal cancer chemoresistance through a conserved microRNA-342-3p target sequence. J Cell Physiol 2018; 234:10157-10165. [PMID: 30443961 DOI: 10.1002/jcp.27684] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 10/09/2018] [Indexed: 12/13/2022]
Abstract
Long noncoding RNAs (lncRNAs) have been implicated in numerous physiological and pathological processes, including cancer development and progression. However, the role and molecular mechanism of lncRNAs in resistance to chemotherapy of colorectal cancer (CRC) remain enigmatic. Here, we found that lncRNA small Cajal body-specific RNA 2 (SCARNA2) is expressed higher in CRC tissues than in adjacent normal tissues, and a robust expression of SCARNA2 is correlated with a bad prognosis of CRC patients after surgery. SCARNA2 overexpression significantly promoted chemoresistance in CRC cells, and downregulation of SCARNA2 obviously inhibited chemoresistance in vitro. SCARNA2 promotes chemotherapy resistance via competitively binding miR-342-3p to facilitate epidermal growth factor receptor (EGFR) and B-cell lymphoma 2 (BCL2) expression in CRC cells. Together, our results reveal a novel pathway that SCARNA2 regulates CRC chemoresistance through targeting miR-342-3p-EGFR/BCL2 pathway, providing a promising therapeutic target for CRC.
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Affiliation(s)
- Peng-Fei Zhang
- Department of Oncology, Tongji University School of Medicine Affiliated Shanghai East Hospital, Shanghai, China
| | - Jing Wu
- Department of Oncology, Tongji University School of Medicine Affiliated Shanghai East Hospital, Shanghai, China
| | - Yin Wu
- Department of Oncology, Tongji University School of Medicine Affiliated Shanghai East Hospital, Shanghai, China
| | - Wei Huang
- Department of Oncology, Tongji University School of Medicine Affiliated Shanghai East Hospital, Shanghai, China
| | - Min Liu
- Department of Oncology, Tongji University School of Medicine Affiliated Shanghai East Hospital, Shanghai, China
| | - Zhao-Ru Dong
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, China
| | - Bai-Ying Xu
- Department of General Surgery, Xuhui District Central Hospital of Shanghai, Shanghai, China
| | - Yong Jin
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Fei Wang
- Department of Oncology, Tongji University School of Medicine Affiliated Shanghai East Hospital, Shanghai, China
| | - Xue-Mei Zhang
- Department of Oncology, Tongji University School of Medicine Affiliated Shanghai East Hospital, Shanghai, China
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184
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Taghikhani A, Hassan ZM, Ebrahimi M, Moazzeni SM. microRNA modified tumor-derived exosomes as novel tools for maturation of dendritic cells. J Cell Physiol 2018; 234:9417-9427. [PMID: 30362582 DOI: 10.1002/jcp.27626] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 09/25/2018] [Indexed: 12/21/2022]
Abstract
Tumor-derived exosomes (TEX) are known by their immune suppression effects as well as initiation mediators in cancer progression and metastasis. Meanwhile, they are appropriate sources to induce immunity against tumor cells, as consist of tumor specific and associated antigens. The aim of the current study is modifying TEX with microRNA miR-155, miR-142, and let-7i, to enhance their immune stimulation ability and induce potent dendritic cells (DC). For this, exosomes were isolated from mouse mammalian breast cancer cell line; 4T1, and subjected to miR-155, miR-142, and let-7i by electroporation. Immature DCs were generated from mouse bone marrow in the presence of interleukin-4 (IL-4) and granulocyte-macrophage colony-stimulating factor (GM-CSF). To mature DCs, lipopolysaccharide (LPS), TEX, and modified TEX were used. The expression level of miRNAs and their target genes (IL-6, IL-17, IL-1b, TGFβ, SOCS1, KLRK1, IFNγ, and TLR4) was determined. TEX were nanovesicles with spheroid morphology which expressed CD81, CD63, and TSG101, as exosome markers, at protein level. MHCII, CD80, and CD40 as maturation markers were assessed by flow cytometry. Overexpression of miRNAs were confirmed in exosomes and mDCs. Up and downregulation of target genes confirmed the gene network in DC maturation. We found that Let-7i could efficiently induce the DC maturation, as well as miR-142 and miR-155 have enhancing effects. These findings reveal that the modified TEX would be a hopeful cell-free vaccine for the cancer treatment.
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Affiliation(s)
- Adeleh Taghikhani
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.,Department of Stem Cells and Developmental Biology, Cell Sciences Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Zuhair Mohammad Hassan
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Marzieh Ebrahimi
- Department of Stem Cells and Developmental Biology, Cell Sciences Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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185
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Huang M, Wang H, Hu X, Cao X. lncRNA MALAT1 binds chromatin remodeling subunit BRG1 to epigenetically promote inflammation-related hepatocellular carcinoma progression. Oncoimmunology 2018; 8:e1518628. [PMID: 30546959 DOI: 10.1080/2162402x.2018.1518628] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one type of cancers whose carcinogenesis and progression are closely related to chronic inflammation. Identifying the molecular mechanisms for inflammation-related HCC progression will contribute to improve the efficacy of current therapeutics for HCC patients. Many kinds of epigenetic factors, including long non-coding RNAs (lncRNAs), have been discovered to be important in HCC growth and metastasis. However, how the lncRNAs promote HCC progression and what's the application of lncRNA silencing in vivo in suppressing HCC remain to be further investigated. Here, we found that lncRNA metastasis associated lung adenocarcinoma transcript1 (MALAT1) was upregulated in HCC tumor tissues, and knockdown of MALAT1 suppressed proliferation, cell cycle and invasion of HCC cells in response to lipopolysaccharide (LPS) stimulation. Knockdown of MALAT1 significantly inhibited LPS-induced pro-inflammatory mediators IL-6 and CXCL8 expression in HCC cells, which could be restored by overexpressing MALAT1. Mechanistically, MALAT1 recruited Brahma-related gene 1 (BRG1), a catalytic subunit of chromatin remodeling complex switching/sucrose non-fermentable (SWI/SNF), to the promoter region of IL-6 and CXCL8, and thus facilitated NF-κB to induce the expression of these inflammatory factors. Importantly, in vivo silencing of MALAT1 in HCC tissues inhibited growth of HCC xenografts, and also suppressed the expression of pro-inflammatory factors in HCC tissues accordingly. Our results demonstrate that MALAT1 promotes HCC progression by binding BRG1 to epigenetically enhance inflammatory response in HCC tissues, and silencing of MALAT1 may be a potential approach to the treatment of HCC.
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Affiliation(s)
- Mingyan Huang
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai China
| | - Huamin Wang
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai China.,National Key Laboratory of Medical Molecular Biology, Department of Immunology & Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing China
| | - Xiang Hu
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai China.,Institute of Immunology, Zhejiang University School of Medicine, Hangzhou China
| | - Xuetao Cao
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai China.,National Key Laboratory of Medical Molecular Biology, Department of Immunology & Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing China.,Institute of Immunology, Zhejiang University School of Medicine, Hangzhou China.,College of Life Science, Nankai University, Tianjin China
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186
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Chen X, Sun Y, Cai R, Wang G, Shu X, Pang W. Long noncoding RNA: multiple players in gene expression. BMB Rep 2018; 51:280-289. [PMID: 29636120 PMCID: PMC6033065 DOI: 10.5483/bmbrep.2018.51.6.025] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Indexed: 01/13/2023] Open
Abstract
Previously considered as a component of transcriptional noise, long noncoding RNAs (lncRNAs) were neglected as a therapeutic target, however, recently increasing evidence has shown that lncRNAs can participate in numerous biological processes involved in genetic regulation including epigenetic, transcriptional, and post-transcriptional regulation. In this review, we discuss the fundamental functions of lncRNAs at different regulatory levels and their roles in metabolic balance. Typical examples are introduced to illustrate their diverse molecular mechanisms. The comprehensive investigation and identification of key lncRNAs will not only contribute to insights into diseases, such as breast cancer and type II diabetes, but also provide promising therapeutic targets for related diseases. [BMB Reports 2018; 51(6): 280-289].
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Affiliation(s)
- Xiaochang Chen
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Yunmei Sun
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Rui Cai
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Guoqiang Wang
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Xiaoyan Shu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan Province 621010, China
| | - Weijun Pang
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi Province 712100, China
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187
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You X, Zhao Y, Sui J, Shi X, Sun Y, Xu J, Liang G, Xu Q, Yao Y. Integrated analysis of long noncoding RNA interactions reveals the potential role in progression of human papillary thyroid cancer. Cancer Med 2018; 7:5394-5410. [PMID: 30318850 PMCID: PMC6246933 DOI: 10.1002/cam4.1721] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 07/02/2018] [Accepted: 07/13/2018] [Indexed: 12/30/2022] Open
Abstract
Recent scientific evidence has suggested that long noncoding RNAs (lncRNAs) play an important part in tumorigenesis as an important member of competing endogenous RNAs (ceRNAs). Hundreds of RNA sequence data and relevant clinic information are freely accessible in The Cancer Genome Atlas (TCGA) datasets. However, the role of cancer‐related lncRNAs in papillary thyroid cancer (PTC) is not fully understood yet. In this study, we identified 461 RNA sequencing data from TCGA. Subsequently, 45 lncRNAs, 21 miRNAs, and 78 mRNAs were chosen to construct a ceRNA network of PTC. Then, we analyzed the correlation between these 45 PTC‐specific lncRNAs and clinic features and patient outcome. Thirty‐seven of these lncRNAs were found to be closely related to age, race, gender, lymph node metastasis, TNM staging system, and patient outcome. Additionally, three of them were linked to PTC patient overall survival. Eventually, we selected eight lncRNAs randomly and performed quantificational real‐time polymerase chain reaction (qRT‐PCR) in 28 newly diagnosed patients with PTC to verify the reliability of the above results. The results of qRT‐PCR are totally in agreement with the bioinformatics analysis. Additionally, it was found that HAND2‐AS1 was negatively related to tumor size (P < 0.05). The results were consistent with the bioinformatics analysis in TCGA. Taken together, we identified the differentially expressed lncRNAs and constructed a PTC ceRNA network. The study provides a new perspective and supplement for our understanding of lncRNAs in PTC development and reveals potential diagnostic and prognostic markers in PTC.
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Affiliation(s)
- Xin You
- School of Medicine, Southeast University, Nanjing, Jiangsu, China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Yixin Zhao
- School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Jing Sui
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Xianbiao Shi
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Yulu Sun
- School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Jiahan Xu
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Geyu Liang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Qingxiang Xu
- School of Medicine, Southeast University, Nanjing, Jiangsu, China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Yongzhong Yao
- School of Medicine, Southeast University, Nanjing, Jiangsu, China.,Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
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188
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Yan X, Zhu Y, Li F, Shi W, Wang J, Wang Q, Zhang Q, Chai L, Li M. The value of long noncoding RNA CASC2 as a biomarker of prognosis in carcinomas: a meta-analysis. J Cancer 2018; 9:3824-3830. [PMID: 30410584 PMCID: PMC6218775 DOI: 10.7150/jca.26458] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 08/26/2018] [Indexed: 12/13/2022] Open
Abstract
Lnc RNA Cancer Susceptibility Candidate 2(CASC2) has been shown to be aberrantly expressed in multiple types of cancer and might serve as a prognosis biomarker. The present meta-analysis was conducted to investigate whether the expression of CASC2 was associated with prognosis or clinicopathological features in correlative cancers. A total of 11 studies with 765 cancer patients were included by searching the electronic databases, the results found a significant association between high expression of CASC2 and longer OS in cancer patients (HR=0.43, 95% CI: 0.33-0.55, P =0.000).In addition, a significant correlation was observed between high level of CASC2 and earlier TNM stage(OR = 0.30, 95% CI =0.21-0.43, P < 0.001), smaller tumor size(OR = 0.28, 95% CI =0.12-0.66, P =0.004), better tumor differentiation(OR = 0.42, 95% CI =0.27-0.66, P =0.0002). In conclusion, CASC2 can serve as a novel marker predicting the prognosis and clinicopathological features in various cancers.
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Affiliation(s)
- Xin Yan
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Yanting Zhu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Fangwei Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Wenhua Shi
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Jian Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Qingting Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Qianqian Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Limin Chai
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Manxiang Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
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189
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Ma J, Wu K, Liu K, Miao R. Effects of MALAT1 on proliferation and apo- ptosis of human non-small cell lung cancer A549 cells in vitro and tumor xenograft growth in vivo by modulating autophagy. Cancer Biomark 2018; 22:63-72. [PMID: 29439314 DOI: 10.3233/cbm-170917] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To explore the ability of MALAT1 to influence non-small cell lung cancer (NSCLC) A549 cells in vitro and tumor xenograft growth in vivo by modulating autophagy. METHODS LncRNA MALAT-1 in normal HBE cells and human NSCLC cells was measured. A549 cells were treated with si-MALAT-1, negative control and si-MALAT-1 + rapamycin. The mRNA levels of MALAT-1, P62 and LC3 was determined by the qRT-PCR and the protein levels of autophagy-related proteins by the western blotting. The CCK8 assay was performed for cell proliferation, the scratch test for cell migration, the Transwell assay for cell invasion, and the flow cytometry for cell cycle and apoptosis. Tumor xenograft in nude mice is performed to test tumorigenesis of the transfected A549 cells. RESULTS The expression level of MALAT-1 in A549, SPC-A-1 and NCI-H460 cells was increased compared to HBE cells. And A549 with a high expression level of MALAT-1 were selected for cell transfection. si-MALAT-1 decreased cell proliferation, migration, invasion, and LC3-II/LC3-I ratio, reduced cell cycle progression, and increased cell apoptosis and P62 protein expression. No significant difference was found between A549 cells and A549 cells transfected with si-MALAT-1 + RAPA, A549 cells transfected with NC and A549 cells transfected with si-MALAT-1 + RAPA. Nude mice injected with A549 cells transfected with si-MALAT-1 had smallest tumor on size and weight among other nude mice. CONCLUSION Downregulation of MALAT1 may promote apoptosis and suppress proliferation, migration and invasion of human NSCLC A549 cells by inhibiting autophagy, thereby suppressing the development of NSCLC.
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Affiliation(s)
- Jun Ma
- Thoracic Surgery Department, 1st Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, Guangdong, China
| | - Kaiming Wu
- Colorectal Surgery Department, 1st Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, Guangdong, China
| | - Kuanzhi Liu
- Department of Anaesthesiology, 1st Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, Guangdong, China
| | - Rong Miao
- Physical Exam. Center, The Eastern Hospital of 1st Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510700, Guangdong, China
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190
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Meng Q, Yang BY, Liu B, Yang JX, Sun Y. Long non-coding RNA SNHG6 promotes glioma tumorigenesis by sponging miR-101-3p. Int J Biol Markers 2018; 33:148-155. [PMID: 29799357 DOI: 10.1177/1724600817747524] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Glioma is the most common primary brain tumor. The small nucleolar RNA host gene (SNHG) SNHG6 is a potential oncogene in the development of several types of cancers. METHODS In this study, we investigated the functional role of long non-coding RNA (lncRNA) SNHG6 in the malignancy of glioma in cell lines and transplanted nude mice. RESULTS We found that the expression of lncRNA SNHG6 was higher in glioma tissues and cells than in normal brain tissues and cells. The expression of lncRNA SNHG6 was positively correlated with the malignancy and poor prognosis of glioma patients. microRNA (miR)-101-3p expression was decreased in glioma tissues and cells and was negatively correlated with the malignancy and poor prognosis of glioma patients. In glioma tissues, the expression of lncRNA SNHG6 was negatively correlated with the expression of miR-101-3p. SNHG6 contained a binding site of miR-101-3p. Knockdown of SNHG6 expression resulted in a significant increase of miR-101-3p expression. miR-101-3p mimic markedly decreased the luciferase activity of SNHG6. Knockdown of SNHG6 inhibited glioma cell proliferation, migration, and epithelial-mesenchymal transition (EMT), and increased apoptosis. miR-101-3p mimic enhanced knockdown of SNHG6-induced inhibition of cell proliferation, migration, and EMT, and an increase of apoptosis. Anti-miR-101-3p reversed the the effects of si-SNHG6 on cell malignancy. Knockdown of SNHG6 remarkably reduced the increase of tumor volumes in xenograft mouse models. In tumor tissues, knockdown of SNHG6 increased the expression of miR-101-3p and reduced EMT biomarker expression. CONCLUSIONS Our study provides novel insights into the functions of lncRNA SNHG6/miR-101-3p axis in the tumorigenesis of glioma.
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Affiliation(s)
- Qiang Meng
- 1 Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an - China
| | - Bao-Ying Yang
- 2 Department of Neurosurgery, 999 Brain Hospital of Guang Dong, Guang Zhou - China
| | - Bei Liu
- 1 Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an - China
| | - Ji-Xue Yang
- 3 Department of Neurosurgery, The Second People Hospital of Xin Xiang, Xin Xiang - China
| | - Yang Sun
- 1 Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an - China
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191
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Chen X, Zeng K, Xu M, Hu X, Liu X, Xu T, He B, Pan Y, Sun H, Wang S. SP1-induced lncRNA-ZFAS1 contributes to colorectal cancer progression via the miR-150-5p/VEGFA axis. Cell Death Dis 2018; 9:982. [PMID: 30250022 PMCID: PMC6155123 DOI: 10.1038/s41419-018-0962-6] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 06/24/2018] [Accepted: 07/17/2018] [Indexed: 02/07/2023]
Abstract
Increasing long non-coding RNAs (lncRNAs) have been reported to play key roles in the development and progression of various malignancies. ZNFX1 antisense RNA1 (ZFAS1) has been reported to be aberrant expression and suggested as a tumor suppressor or oncogene in many cancers. However, the biological role and underlying molecular mechanism of ZFAS1, especially the miRNA sponge role of which in CRC remain largely unknown. We found that ZFAS1 expression was higher in CRC tissues, where it was associated with poor overall survival (OS), we also showed that ZFAS1 upregulation was induced by nuclear transcription factor SP1. Moreover, ZFAS1 and VEGFA are both targets of miR-150-5p, while ZFAS1 binds to miR-150-5p in an AGO2-dependent manner. Additionally, ZFAS1 upregulation markedly promoted as well as ZFAS1 knockdown significantly suppressed CRC cell proliferation, migration, invasion and angiogenesis, and the inhibitory effect caused by ZFAS1 knockdown could be reversed by antagomiR-150-5p. Lastly, we demonstrated that ZFAS1 knockdown inhibited EMT process and inactivated VEGFA/VEGFR2 and downstream Akt/mTOR signaling pathway in CRC. Our data demonstrated that SP1-induced ZFAS1 contributed to CRC progression by upregulating VEGFA via competitively binding to miR-150-5p, which acts as a tumor suppressor by targeting VEGFA in CRC.
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Affiliation(s)
- Xiaoxiang Chen
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
- Medical College, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Kaixuan Zeng
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
- Medical College, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Mu Xu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Xiuxiu Hu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
- Medical College, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Xiangxiang Liu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Tao Xu
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Bangshun He
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Yuqin Pan
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Huiling Sun
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China
| | - Shukui Wang
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, Jiangsu, China.
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Bure I, Geer S, Knopf J, Roas M, Henze S, Ströbel P, Agaimy A, Wiemann S, Hoheisel JD, Hartmann A, Haller F, Moskalev EA. Long noncoding RNA HOTAIR is upregulated in an aggressive subgroup of gastrointestinal stromal tumors (GIST) and mediates the establishment of gene-specific DNA methylation patterns. Genes Chromosomes Cancer 2018; 57:584-597. [PMID: 30248209 DOI: 10.1002/gcc.22672] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/23/2018] [Accepted: 07/24/2018] [Indexed: 01/17/2023] Open
Abstract
Aberrant alterations of DNA methylation are common events in oncogenesis. The origin of cancer-associated epigenetic defects is of interest for mechanistic understanding of malignant transformation and-in the long run-therapeutic modulation of DNA methylation in a locus-specific manner. Given the ability of certain long noncoding RNAs to operate as an interface between DNA and the epigenetic modification machinery which can interact with DNA methyltransferases, we hypothesized-considering HOTAIR as an example-that this transcript may contribute to gene specificity of DNA methylation. Using gastrointestinal stromal tumors (GISTs, n = 67) as a model, we confirmed upregulation of HOTAIR in tumors with high risk of recurrence and showed high abundance of the transcript in GIST cell lines. HOTAIR knockdown in GIST-T1 cells triggered transcriptional response of genes involved in the organization and disassembly of the extracellular matrix and, notably, induced global locus-specific alterations of DNA methylation patterns. Hypomethylation was induced at a total of 507 CpG sites, whereas 382 CpG dinucleotides underwent gain of methylation upon HOTAIR depletion. Importantly, orchestrated gain or loss of methylation at multiple individual CpG sites was shown for cancer-related DPP4, RASSF1, ALDH1A3, and other targets. Collectively, our data indicate that HOTAIR enables target specificity of DNA methylation in GIST and is capable of dual (hypo- and hypermethylation) regulation by a yet to be defined mechanism. The results further suggest the feasibility of manipulating DNA methylation in a targeted manner and are of interest in the context of epigenetic cancer therapy.
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Affiliation(s)
- Irina Bure
- Diagnostic Molecular Pathology, Institute of Pathology, Friedrich Alexander University, Erlangen, Germany
| | - Sandra Geer
- Diagnostic Molecular Pathology, Institute of Pathology, Friedrich Alexander University, Erlangen, Germany
| | - Jasmin Knopf
- Diagnostic Molecular Pathology, Institute of Pathology, Friedrich Alexander University, Erlangen, Germany
| | - Maike Roas
- Diagnostic Molecular Pathology, Institute of Pathology, Friedrich Alexander University, Erlangen, Germany
| | - Sabine Henze
- Genomics and Proteomics Core Facility, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Philipp Ströbel
- Institute of Pathology, Georg August University, Göttingen, Germany
| | - Abbas Agaimy
- Diagnostic Molecular Pathology, Institute of Pathology, Friedrich Alexander University, Erlangen, Germany
| | - Stefan Wiemann
- Genomics and Proteomics Core Facility, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jörg D Hoheisel
- Functional Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Arndt Hartmann
- Diagnostic Molecular Pathology, Institute of Pathology, Friedrich Alexander University, Erlangen, Germany
| | - Florian Haller
- Diagnostic Molecular Pathology, Institute of Pathology, Friedrich Alexander University, Erlangen, Germany
| | - Evgeny A Moskalev
- Diagnostic Molecular Pathology, Institute of Pathology, Friedrich Alexander University, Erlangen, Germany
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Abstract
SIGNIFICANCE The emerging connections between an increasing number of long noncoding RNAs (lncRNAs) and oncogenic hallmarks provide a new twist to tumor complexity. Recent Advances: In the present review, we highlight specific lncRNAs that have been studied in relation to tumorigenesis, either as participants in the neoplastic process or as markers of pathway activity or drug response. These transcripts are typically deregulated by oncogenic or tumor-suppressing signals or respond to microenvironmental conditions such as hypoxia. CRITICAL ISSUES Among these transcripts are lncRNAs sufficiently divergent between mouse and human genomes that may contribute to biological differences between species. FUTURE DIRECTIONS From a translational standpoint, knowledge about primate-specific lncRNAs may help explain the reason behind the failure to reproduce the results from mouse cancer models in human cell-based systems. Antioxid. Redox Signal. 29, 922-935.
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Affiliation(s)
- Xue Wu
- 1 Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana.,2 Department of Microbiology and Immunology, Indiana University School of Medicine , Indianapolis, Indiana
| | - Oana M Tudoran
- 1 Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana.,3 Department of Functional Genomics and Experimental Pathology, The Oncology Institute "Prof. Dr. I. Chiricuta," Cluj-Napoca, Romania
| | - George A Calin
- 4 Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center , Houston, Texas.,5 Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center , Houston, Texas
| | - Mircea Ivan
- 1 Department of Medicine, Indiana University School of Medicine , Indianapolis, Indiana.,2 Department of Microbiology and Immunology, Indiana University School of Medicine , Indianapolis, Indiana
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Xue S, Jiang SQ, Li QW, Wang S, Li J, Yang S, Zhang HM, Xu YF, Wang LS, Zheng JH. Decreased expression of BRAF-activated long non-coding RNA is associated with the proliferation of clear cell renal cell carcinoma. BMC Urol 2018; 18:79. [PMID: 30200918 PMCID: PMC6131937 DOI: 10.1186/s12894-018-0395-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 09/03/2018] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND BRAF-activated long non-coding RNA (BANCR) has been associated with various types of cancer. Nevertheless, the role of BANCR in clear cell renal cell carcinoma (ccRCC) is still not fully understood. This study aims to investigate the relationship between ccRCC and BANCR. METHODS Expression of BANCR in TCGA renal cancer data sets was analyzed. The expression pattern of BANCR in Immortalized normal human proximal tubule epithelial cell line HK-2 and ccRCC cell lines (ACHN, CAKI-1, A498 and 786-O) was detected by real-time quantitative RT-PCR (qRT-PCR). ccRCC tissues with adjacent normal renal tissues diagnosed by pathological methods from 62 patients were used to detect the expression of BANCR, and its correlation with prognosis of ccRCC patients was assessed by Kaplan-Meier method. The LV-BANCR vector was used to examine the influence of BANCR on the proliferation, migration, invasion, apoptosis and cell cycle distribution of ccRCC cells in vitro. RESULTS BANCR was downregulated in renal cancer according to TCGA data sets. Compared with adjacent normal renal tissues and normal human proximal tubule epithelial cell line HK-2, BANCR expression was significantly decreased in ccRCC tissues and ccRCC cell lines, and its low expression was associated with poor prognosis. Moreover, in the condition of BANCR overexpression by LV-BANCR vector, the proliferation, migration, invasion capacity of ccRCC cells was inhibited, while the apoptosis was increased and the G1 cell cycle arrest was induced in vitro. CONCLUSIONS BANCR is downregulated in ccRCC tissues and cell lines, and is associated with ccRCC progression. Thus, BANCR may represent a novel prognostic biomarker and a potential therapeutic target for ccRCC patients.
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Affiliation(s)
- Sheng Xue
- Department of Urology, The First Affliated Hospital of Bengbu Medical College Bengbu, Bengbu, Anhui China
| | - Sheng-Qun Jiang
- Department of Ophthalmology, The First Affliated Hospital of Bengbu Medical College Bengbu, Bengbu, Anhui China
| | - Qing-wen Li
- Department of Urology, The First Affliated Hospital of Bengbu Medical College Bengbu, Bengbu, Anhui China
| | - Sheng Wang
- Department of Urology, The First Affliated Hospital of Bengbu Medical College Bengbu, Bengbu, Anhui China
| | - Jian Li
- Department of Urology, The First Affliated Hospital of Bengbu Medical College Bengbu, Bengbu, Anhui China
| | - Shuai Yang
- Department of Urology, The First Affliated Hospital of Bengbu Medical College Bengbu, Bengbu, Anhui China
| | - Hai-Min Zhang
- Department of Urology, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Yun-Fei Xu
- Department of Urology, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Long-Sheng Wang
- Department of Urology, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Jun-Hua Zheng
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200072 China
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195
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Wang Y, Liu Y, Li Z, Yan X, Huang C, Ye X, Sun X, Qin S, Zhong X, Zeng C, Liu D, Zou X, Liu Y, Wu J, Wen Z, Yang G, Jing C, Wei X. Association Between MALAT1 and THRIL Polymorphisms and Precancerous Cervical Lesions. Genet Test Mol Biomarkers 2018; 22:509-517. [PMID: 30188187 DOI: 10.1089/gtmb.2018.0097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The occurrence of cervical cancer is a complex process, for which human papillomavirus (HPV) infection is a risk factor, although not all women infected with HPV will develop the disease. Knockout of mammalian lung metastasis associated transcript 1 (MALAT1) is associated with increased risk for several cancer types, whereas the long non-coding RNA (lncRNA) THRIL is essential for induction of tumor necrosis factor-α expression, which plays important roles in HPV infection. MATERIALS AND METHODS To investigate the effects of polymorphisms in the lncRNAs MALAT1 and THRIL on the susceptibility to precancerous cervical lesions, 12 single nucleotide polymorphisms (SNPs) were analyzed from 164 cervical precancerous lesion cases and 428 controls. Gene-gene and gene-environment interactions and haplotype associations were also evaluated. RESULTS We found a significantly decreased risk of precancerous cervical lesions for the THRIL rs7133268 AG genotype (odds ratio adjusted = 0.63, 95% confidence interval: 0.42-0.94, p = 0.025). Multifactor dimensionality reduction analysis identified a significant two-locus interaction model involved in HPV infection and THRIL rs7133268 (training balanced accuracy = 0.6957, testing balanced accuracy = 0.6948, cross-validation consistency = 10/10, p = 0.0046). Other SNPs, including the two identified for MALAT1, were not significantly related to the risk of precancerous cervical lesions. CONCLUSION Our results suggest that the rs7133268 polymorphism of the lncRNA THRIL gene can reduce the genetic susceptibility of precancerous cervical lesions and in turn reduce the risk of HPV infection.
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Affiliation(s)
- Yao Wang
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China .,2 Guangdong Women and Children Hospital , Guangzhou, China
| | - Yang Liu
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China
| | - Zhongyi Li
- 2 Guangdong Women and Children Hospital , Guangzhou, China .,3 Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Xiumin Yan
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China .,2 Guangdong Women and Children Hospital , Guangzhou, China
| | - Chuican Huang
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China .,2 Guangdong Women and Children Hospital , Guangzhou, China
| | - Xingguang Ye
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China
| | - Xiuhong Sun
- 2 Guangdong Women and Children Hospital , Guangzhou, China .,3 Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Shuang Qin
- 2 Guangdong Women and Children Hospital , Guangzhou, China .,3 Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China
| | - Xingming Zhong
- 2 Guangdong Women and Children Hospital , Guangzhou, China
| | - Chengli Zeng
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China
| | - Dandan Liu
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China
| | - Xiaoqian Zou
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China
| | - Yumei Liu
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China
| | - Jing Wu
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China
| | - Zihao Wen
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China
| | - Guang Yang
- 4 Department of Pathogen Biology, School of Medicine, Jinan University , Guangzhou, China .,5 Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University , Guangzhou, China
| | - Chunxia Jing
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China .,5 Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University , Guangzhou, China
| | - Xiangcai Wei
- 1 Department of Epidemiology, School of Medicine, Jinan University , Guangzhou, China .,2 Guangdong Women and Children Hospital , Guangzhou, China
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196
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Gokey JJ, Snowball J, Sridharan A, Speth JP, Black KE, Hariri LP, Perl AKT, Xu Y, Whitsett JA. MEG3 is increased in idiopathic pulmonary fibrosis and regulates epithelial cell differentiation. JCI Insight 2018; 3:122490. [PMID: 30185671 DOI: 10.1172/jci.insight.122490] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 07/19/2018] [Indexed: 12/13/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial lung disease causing fibrotic remodeling of the peripheral lung, leading to respiratory failure. Peripheral pulmonary epithelial cells lose normal alveolar epithelial gene expression patterns and variably express genes associated with diverse conducting airway epithelial cells, including basal cells. Single-cell RNA sequencing of pulmonary epithelial cells isolated from IPF lung tissue demonstrated altered expression of LncRNAs, including increased MEG3. MEG3 RNA was highly expressed in subsets of the atypical IPF epithelial cells and correlated with conducting airway epithelial gene expression patterns. Expression of MEG3 in human pulmonary epithelial cell lines increased basal cell-associated RNAs, including TP63, KRT14, STAT3, and YAP1, and enhanced cell migration, consistent with a role for MEG3 in regulating basal cell identity. MEG3 reduced expression of TP73, SOX2, and Notch-associated RNAs HES1 and HEY1, in primary human bronchial epithelial cells, demonstrating a role for MEG3 in the inhibition of genes influencing basal cell differentiation into club, ciliated, or goblet cells. MEG3 induced basal cell genes and suppressed genes associated with terminal differentiation of airway cells, supporting a role for MEG3 in regulation of basal progenitor cell functions, which may contribute to tissue remodeling in IPF.
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Affiliation(s)
- Jason J Gokey
- Division of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - John Snowball
- Division of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Anusha Sridharan
- Division of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Joseph P Speth
- Division of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | | | - Lida P Hariri
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Anne-Karina T Perl
- Division of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Yan Xu
- Division of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jeffrey A Whitsett
- Division of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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197
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Wang X, Liu W, Wang P, Li S. RNA interference of long noncoding RNA HOTAIR suppresses autophagy and promotes apoptosis and sensitivity to cisplatin in oral squamous cell carcinoma. J Oral Pathol Med 2018; 47:930-937. [PMID: 30053324 DOI: 10.1111/jop.12769] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/28/2018] [Accepted: 07/23/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Long noncoding RNA HOX transcript antisense RNA (lncRNA HOTAIR) is overexpressed in many types of human cancers and is correlated with clinical stage and lymph node metastasis in oral squamous cell carcinoma (OSCC). Autophagy, an important mechanism of self-protection, plays vital roles in adapting to hypoxia, tolerating external stimulation, and inducing chemotherapy resistance in OSCC cells. This study aims to investigate the effect of HOTAIR on autophagy, apoptosis, and invasion of OSCC cells. METHODS HOTAIR expression in OSCC cells was knocked down by small RNA interference. Transmission electron microscope, Western blot, and flow cytometry assay were used to detect the level of autophagy and apoptosis. OSCC cells were medicated with cisplatin, and median lethal dose (LD50) was performed to evaluate the effect on chemosensitivity of HOTAIR. RESULTS After HOTAIR silence, autophagy was inhibited with the downregulated expression of MAP1LC3B (microtubule-associated protein 1 light chain 3B), beclin1, and autophagy-related gene (ATG) 3 and ATG7. The expressions of mTOR increased. Proliferation, migration, and invasion of OSCC cells were suppressed. Furthermore, apoptosis rate was enhanced, and the sensitivity to cisplatin was promoted when compared with the negative control group. CONCLUSION HOTAIR acts as an oncogene in OSCC cells, and HOTAIR silence may be a potential therapeutic target for OSCC.
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Affiliation(s)
- Xia Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Periodontology, School of Stomatology, Shandong University, Jinan, Shandong, China.,Department of Oral Pathology, Binzhou Medical University, Yantai, Shandong, China
| | - Wei Liu
- Medical Imaging Research Institute, Binzhou Medical University, Yantai, Shandong, China
| | - Peiyuan Wang
- Medical Imaging Research Institute, Binzhou Medical University, Yantai, Shandong, China
| | - Shu Li
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Periodontology, School of Stomatology, Shandong University, Jinan, Shandong, China
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198
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Wan B, Wu HY, Lv DJ, Zhou XM, Zhong LR, Lei B, Zhang SB, Mao XM. Downregulation of lncRNA PVT1 expression inhibits proliferation and migration by regulating p38 expression in prostate cancer. Oncol Lett 2018; 16:5160-5166. [PMID: 30250582 PMCID: PMC6144883 DOI: 10.3892/ol.2018.9305] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 06/26/2018] [Indexed: 12/22/2022] Open
Abstract
Long non-coding RNA (lncRNA) plasmacytoma variant translocation 1 (PVT1) has been reported to be overexpressed in prostate cancer cells and associated with tumorigenesis in various types of cancer. However, the biological function of lncRNA PVT1 remains largely unknown. The aim of the present study was to investigate the effect of lncRNA PVT1 expression on the proliferation and migration of prostate cancer cells. Stably transfected prostate cancer cells with downregulated expression of lncRNA PVT1 were constructed by an efficient siRNA fragment, followed by confirmation by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Proliferation was assessed using CCK-8, colony formation and xenograft assays, and cell migration was evaluated using a wound healing assay. The PathScan® Intracellular Signaling Array kit was utilized to explore the underlying molecular mechanisms of lncRNA PVT1 expression in prostate cancer cells. RT-qPCR results confirmed that the lncRNA PVT1 expression level was successfully knocked down in prostate cancer cells. When lncRNA PVT1 expression was downregulated in prostate cancer cells, proliferation and migration were significantly inhibited, compared with the control lncRNA PVT1 group. Furthermore, PVT1 knockdown decreased the phosphorylation of p38 in DU145 cells. Therefore, the present study demonstrated that lncRNA PVT1 downregulation inhibits the proliferation and migration of prostate cancer cells, and is associated with p38 phosphorylation.
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Affiliation(s)
- Bo Wan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Hua-Yan Wu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Dao-Jun Lv
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Xu-Min Zhou
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Li-Ren Zhong
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Bin Lei
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China
| | - Shou-Bo Zhang
- Center for Reproductive Medicine, The Guangdong Armed Police Hospital, The Guangzhou Medical University, Guangzhou, Guangdong 510507, P.R. China
| | - Xiang-Ming Mao
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.,Department of Urology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
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199
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Liu T, Han Z, Li H, Zhu Y, Sun Z, Zhu A. LncRNA DLEU1 contributes to colorectal cancer progression via activation of KPNA3. Mol Cancer 2018; 17:118. [PMID: 30098595 PMCID: PMC6087004 DOI: 10.1186/s12943-018-0873-2] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 08/02/2018] [Indexed: 01/05/2023] Open
Abstract
Background Accumulating evidences show that long noncoding RNAs (lncRNA) play essential roles in the development and progression of various malignancies. However, their functions remains poorly understood and many lncRNAs have not been defined in colorectal cancer (CRC). In this study, we investigated the role of DLEU1 in CRC. Methods Quantitative real-time PCR was used to detect the expression of DLEU1 and survival analysis was adopted to explore the association between DLEU1 expression and the prognosis of CRC patients. CRC cells were stably transfected with lentivirus approach and cell proliferation, migration, invasion and cell apoptosis, as well as tumorigenesis in nude mice were performed to assess the effects of DLEU1 in BCa. Biotin-coupled probe pull down assay, RNA immunoprecipitation and Fluorescence in situ hybridization assays were conducted to confirm the relationship between DLEU1 and SMARCA1. Results Here we revealed that DLEU1 was crucial for activation of KPNA3 by recruiting SMARCA1, an essential subunit of the NURF chromatin remodeling complex, in CRC. DLEU1 was indispensible for the deposition of SMARCA1 at the promoter of KPNA3 gene. Increased expression of DLEU1 and KPNA3 was observed in human CRC tissues. And higher expression of DLEU1 or KPNA3 in patients indicates lower survival rate and poorer prognosis. DLEU1 knockdown remarkably inhibited CRC cell proliferation, migration and invasion in vitro and in vivo while overexpressing KPNA3 in the meantime reversed it. Conclusions Our results identify DLEU1 as a key regulator by a novel DLEU1/SMARCA1/KPNA3 axis in CRC development and progression, which may provide a potential biomarker and therapeutic target for the management of CRC. Electronic supplementary material The online version of this article (10.1186/s12943-018-0873-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tianyou Liu
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, #23 Youzheng Street, Harbin, 150001, Heilongjiang Province, China.
| | - Zhiyang Han
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, #23 Youzheng Street, Harbin, 150001, Heilongjiang Province, China
| | - Huanyu Li
- Department of General Surgery, Mulan Country People's Hospital, Harbin, 150001, China
| | - Yuekun Zhu
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, #23 Youzheng Street, Harbin, 150001, Heilongjiang Province, China
| | - Ziquan Sun
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, #23 Youzheng Street, Harbin, 150001, Heilongjiang Province, China
| | - Anlong Zhu
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, #23 Youzheng Street, Harbin, 150001, Heilongjiang Province, China
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200
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Yan S, Shan X, Chen K, Liu Y, Yu G, Chen Q, Zeng T, Zhu L, Dang H, Chen F, Ling J, Huang A, Tang H. LINC00052/miR-101-3p axis inhibits cell proliferation and metastasis by targeting SOX9 in hepatocellular carcinoma. Gene 2018; 679:138-149. [PMID: 30098428 DOI: 10.1016/j.gene.2018.08.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 08/07/2018] [Indexed: 02/06/2023]
Abstract
Long non-coding RNAs (lncRNAs) have emerged as critical regulators in a variety of diseases, including many tumors, such as hepatocellular carcinoma (HCC). However, the function and mechanisms responsible for these molecules in HCC are not thoroughly understood. In our previous study, we found that LINC00052 was acted as a tumor suppressor in HCC. In this study, we performed transcription microarray analysis to investigate the target gene of LINC00052, and found that knockdown of LINC00052 significantly increased the expression of SRY-related HMG-box gene 9 (SOX9), which plays an oncogenic role in HCC. Moreover, luciferase reporter assay revealed that LINC00052 promoted miR-101-3p expression by enhancing its promoter activity. In addition, online database analysis tools and luciferase assays showed that miR-101-3p could target SOX9. Quantitative real-time polymerase chain reaction (qRT-PCR) demonstrated that miR-101-3p was downregulated in HCC tissues and HCC cell lines. And we found a positive relationship between LINC00052 and miR-101-3p, and a negative relationship between miR-101-3p and SOX9 in HCC tissues. Besides, miR-101-3p was involved in LINC00052 inhibits HCC cells proliferation and metastasis. At the molecular level, LINC00052 downgulated SOX9 to inhibit HCC cells proliferation and metastasis by interacting with miR-101-3p. It might be a potential application for HCC therapy.
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Affiliation(s)
- Shaoying Yan
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Xuefeng Shan
- Department of Pharmacy, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ke Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Yuyang Liu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Gangfeng Yu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Qiuxu Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Tao Zeng
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Liying Zhu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Hao Dang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Fengjiao Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Jiaji Ling
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China
| | - Ailong Huang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China.
| | - Hua Tang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing, China.
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