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Liu Z, Dang C, Xing E, Zhao M, Shi L, Sun J. Overexpression of CASC2 Improves Cisplatin Sensitivity in Hepatocellular Carcinoma Through Sponging miR-222. DNA Cell Biol 2019; 38:1366-1373. [PMID: 31633393 DOI: 10.1089/dna.2019.4882] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The long noncoding RNA cancer susceptibility candidate 2 (CASC2) has been shown to play a crucial role in cancer cell chemoresistance. However, its function and underlying molecular mechanism in hepatocellular carcinoma (HCC) chemoresistance remain unknown. In this study, we used cisplatin (DDP)-resistant HCC cells to investigate CASC2 function and its underlying mechanism. The results demonstrated that CASC2 expression was significantly reduced in HCC tissues and cells, especially in DDP-resistant HCC tissues and cells. Lower CASC2 expression was strongly correlated with shorter survival times in patients with HCC. Functionally, CASC2 overexpression sensitized DDP-resistant Huh7/DDP and SMMC-7721/DDP cells to DDP. Mechanically, CASC2 improved the sensitivity of HCC cells to DDP through sponging miR-222. Taken together, these findings suggested that overexpression of CASC2 overcame DDP resistance in HCC by regulating miR-222 expression, thereby providing a potential therapeutic strategy for overcoming HCC cell chemoresistance.
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Affiliation(s)
- Zhichun Liu
- Department of Hepatobiliary Surgery, The Central Hospital of Petrochina, Langfang, Hebei, P.R. China
| | - Cunshu Dang
- Department of Hepatobiliary Surgery, The Central Hospital of Petrochina, Langfang, Hebei, P.R. China
| | - Entao Xing
- Department of Hepatobiliary Surgery, The Central Hospital of Petrochina, Langfang, Hebei, P.R. China
| | - Mengjie Zhao
- Department of Hepatobiliary Surgery, The Central Hospital of Petrochina, Langfang, Hebei, P.R. China
| | - Linchang Shi
- Department of Hepatobiliary Surgery, The Central Hospital of Petrochina, Langfang, Hebei, P.R. China
| | - Jingwu Sun
- Department of Hepatobiliary Surgery, The Central Hospital of Petrochina, Langfang, Hebei, P.R. China
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Lin S, Zhang R, An X, Li Z, Fang C, Pan B, Chen W, Xu G, Han W. LncRNA HOXA-AS3 confers cisplatin resistance by interacting with HOXA3 in non-small-cell lung carcinoma cells. Oncogenesis 2019; 8:60. [PMID: 31615976 PMCID: PMC6794325 DOI: 10.1038/s41389-019-0170-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 12/12/2022] Open
Abstract
Many studies have indicated that the aberrant expression of long noncoding RNAs (lncRNAs) is responsible for drug resistance, which represents a substantial obstacle for cancer therapy. In the present study, we aimed to investigate the role of the lncRNA HOXA-AS3 in drug resistance and elucidate its underlying mechanisms in non-small-cell lung carcinoma (NSCLC) cells. The role of HOXA-AS3 in drug resistance was demonstrated by the cell counting kit-8 assay (CCK-8), ethynyldeoxyuridine (EDU) assay, and flow cytometry analysis. Tumor xenografts in nude mice were established to evaluate the antitumor effects of HOXA-AS3 knockdown in vivo. Western blotting and quantitative real-time PCR were used to evaluate protein and RNA expression. RNA pull-down assays, mass spectrometry, and RNA immunoprecipitation were performed to confirm the molecular mechanism of HOXA-AS3 in the cisplatin resistance of NSCLC cells. We found that HOXA-AS3 levels increased with cisplatin treatment and knockdown of HOXA-AS3 enhance the efficacy of cisplatin in vitro and in vivo. Mechanistic investigations showed that HOXA-AS3 conferred cisplatin resistance by down-regulating homeobox A3 (HOXA3) expression. Moreover, HOXA-AS3 was demonstrated to interact with both the mRNA and protein forms of HOXA3. In addition, HOXA3 knockdown increased cisplatin resistance and induced epithelial-mesenchymal transition (EMT). Taken together, our findings suggested that additional research into HOXA-AS3 might provide a better understanding of the mechanisms of drug resistance and promote the development of a novel and efficient strategy to treat NSCLC.
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Affiliation(s)
- Shuang Lin
- Department of Lung Transplantation, Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Rui Zhang
- Department of Internal medicine, Hangzhou Wuyunshan Sanatorium, the Affiliated Hangzhou First People's Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xiaoxia An
- Department of Anesthesiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhoubin Li
- Department of Lung Transplantation, Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Cheng Fang
- Department of Lung Transplantation, Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Bo Pan
- Department of Lung Transplantation, Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Chen
- Cancer Institute of Integrated traditional Chinese and Western Medicine, Key laboratory of cancer prevention and therapy combining traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang, 310012, China
| | - Guodong Xu
- Department of Cardiovascular Surgery, The Affiliated Hospital, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, 315041, China
| | - Weili Han
- Department of Lung Transplantation, Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
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303
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Wang B, Zheng J, Li R, Tian Y, Lin J, Liang Y, Sun Q, Xu A, Zheng R, Liu M, Ji A, Bu J, Yuan Y. Long noncoding RNA LINC02582 acts downstream of miR-200c to promote radioresistance through CHK1 in breast cancer cells. Cell Death Dis 2019; 10:764. [PMID: 31601781 PMCID: PMC6787210 DOI: 10.1038/s41419-019-1996-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 09/14/2019] [Accepted: 09/17/2019] [Indexed: 01/17/2023]
Abstract
Radiotherapy is essential to treat breast cancer and microRNA (miRNA) miR-200c is considered as a radiosensitizer of breast cancer. However, the molecular mechanisms by which miR-200c regulates radiosensitivity remain largely unknown. In the present study, we showed that induction of miR-200c led to widespread alteration in long noncoding RNA (lncRNA) expression in breast cancer cells. We identified lncRNA LINC02582 as a target of miR-200c. Inhibition of LINC02582 expression increased radiosensitvity, while overexpression of LINC02582 promoted radioresistance. Mechanistically, LINC02582 interacts with deubiquitinating enzyme ubiquitin specific peptidase 7 (USP7) to deubiquitinate and stabilize checkpoint kinase 1 (CHK1), a critical effector kinase in DNA damage response, thus promoting radioresistance. Furthermore, we detected an inverse correlation between the expression of miR-200c vs. LINC02582 and CHK1 in breast cancer samples. These findings identified LINC02582 as a downstream target of miR-200c linking miR-200c to CHK1, in which miR-200c increases radiosensitivity by downregulation of CHK1.
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Affiliation(s)
- Baiyao Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Jieling Zheng
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Rong Li
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Yunhong Tian
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Jie Lin
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Yingying Liang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Quanquan Sun
- Department of Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, People's Republic of China
| | - Anan Xu
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Ronghui Zheng
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Mengzhong Liu
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Aimin Ji
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China
| | - Junguo Bu
- Department of Radiation Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong Province, People's Republic of China.
| | - Yawei Yuan
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, People's Republic of China. .,Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, People's Republic of China.
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304
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Fan X, Song J, Zhao Z, Chen M, Tu J, Lu C, Wu F, Zhang D, Weng Q, Zheng L, Xu M, Ji J. Piplartine suppresses proliferation and invasion of hepatocellular carcinoma by LINC01391-modulated Wnt/β-catenin pathway inactivation through ICAT. Cancer Lett 2019; 460:119-127. [PMID: 31207322 DOI: 10.1016/j.canlet.2019.06.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 12/29/2022]
Abstract
Although piplartine is regarded as an anticancer agent, the relationship between long noncoding RNAs (lncRNAs), which are involved in various diseases (e.g., tumors) and piplartine in hepatocellular carcinoma (HCC) remains unclear. We identified LINC01391 using microarray analysis and validated its expression by qRT-PCR. Functional assays were applied to evaluate the biological effects of LINC01391 and inhibitory of β-catenin and T-cell factor (ICAT) on HepG2 and SMMC-7721 cells. The binding relationship between LINC01391 and ICAT was determined by RNA pull-down and RNA immunoprecipitation (RIP). Results showed that piplartine attenuated cell proliferation and invasion but promoted cell apoptosis. Upregulation of LINC01391 induced by piplartine inhibited HCC cell proliferation, invasion in vitro, and tumor growth in vivo. LINC01391 interacted with ICAT and promoted its inhibitory effect on the Wnt/β-catenin pathway, as enhanced interaction between β-catenin and ICAT, and dampened interaction of β-catenin and TCF/LEF were induced by overexpression of LINC01391. Knockdown of ICAT also promoted cell proliferation in vitro and tumor growth in vivo. Our study supported a role for piplartine and LINC01391 in HCC treatment. We found that LINC01391 inhibited the Wnt/β-catenin pathway and suppressed tumor growth via ICAT.
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MESH Headings
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Antineoplastic Agents, Phytogenic/pharmacology
- Apoptosis/drug effects
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Gene Expression Regulation, Neoplastic
- Hep G2 Cells
- Humans
- Liver Neoplasms/drug therapy
- Liver Neoplasms/genetics
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Mice, Nude
- Neoplasm Invasiveness
- Piperidones/pharmacology
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- Tumor Burden/drug effects
- Wnt Signaling Pathway/drug effects
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Xiaoxi Fan
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Jingjing Song
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Zhongwei Zhao
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Minjiang Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Jianfei Tu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Chenying Lu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Fazong Wu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Dengke Zhang
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Qiaoyou Weng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Liyun Zheng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China
| | - Min Xu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China.
| | - Jiansong Ji
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China; Department of Radiology, The Fifth Affiliated Hospital of Wenzhou Medical University, Affiliated Lishui Hospital of Zhejiang University, The Central Hospital of Zhejiang Lishui, Lishui, 323000, China.
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305
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Qi L, Zhang T, Yao Y, Zhuang J, Liu C, Liu R, Sun C. Identification of lncRNAs associated with lung squamous cell carcinoma prognosis in the competitive endogenous RNA network. PeerJ 2019; 7:e7727. [PMID: 31576252 PMCID: PMC6753923 DOI: 10.7717/peerj.7727] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/22/2019] [Indexed: 12/24/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) play a role in the formation, development, and prognosis of various cancers. Our study aimed to identify prognostic-related lncRNAs in lung squamous cell carcinoma (LUSC), which may provide new perspectives for individualized treatment of patients. Materials and Methods The RNA sequencing (lncRNA, microRNA (miRNA), mRNA) data and clinical information related to LUSC were obtained from The Cancer Genome Atlas (TCGA) database. Differentially expressed RNA sequences were used to construct the competitive endogenous RNA (ceRNA) network. In present study, we mainly used two prognostic verification methods, Cox analysis and survival analysis, to identify the prognostic relevance of specific lncRNAs and construct prognostic model of lncRNA. Results Datasets on 551 samples of lncRNA and mRNA and 523 miRNA samples were retrieved from the TCGA database. Analysis of the normal and LUSC samples identified 170 DElncRNAs, 331 DEmiRNAs, and 417 DEmRNAs differentially expressed RNAs. The ceRNA network contained 27 lncRNAs, 43 miRNAs, and 11 mRNAs. Furthermore, we identified seven specific lncRNAs (ERVH48-1, HCG9, SEC62-AS1, AC022148.1, LINC00460, C5orf17, LINC00261) as potential prognostic factors after correlation analysis, and five of the seven lncRNAs (AC022148.1, HCG9, LINC00460, C5orf17, LINC00261) constructed a prognostic model of LUSC. Conclusion In present study, we identified seven lncRNAs in the ceRNA network that are associated with potential prognosis in LUSC patients, and constructed a prognostic model of LUSC which can be used to assess the prognosis risk of clinical patients. Further biological experiments are needed to elucidate the specific molecular mechanisms underlying them.
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Affiliation(s)
- Lingyu Qi
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Tingting Zhang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yan Yao
- Clinical Medical Colleges, Weifang Medical University, Weifang, China
| | - Jing Zhuang
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, China
| | - Cun Liu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ruijuan Liu
- Department of Oncology, Weifang Traditional Chinese Hospital, Weifang, China
| | - Changgang Sun
- Department of Oncology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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306
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Huang T, Wang M, Huang B, Chang A, Liu F, Zhang Y, Jiang B. Long noncoding RNAs in the mTOR signaling network: biomarkers and therapeutic targets. Apoptosis 2019; 23:255-264. [PMID: 29556906 DOI: 10.1007/s10495-018-1453-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
As an evolutionarily conserved serine/threonine kinase of the phosphoinositide 3-kinase (PI3K) related kinase family, the mechanistic/mammalian target of rapamycin (mTOR) plays vital roles in the PI3K/AKT/mTOR pathway, participating in different cellular processes including cell survival, metabolism and proliferation. Aberrant activity of this signaling pathway may lead to oncogenesis. Over the last two decades, great progress has been made in the understanding of mTOR activation and how its response is counteracted for maintaining tissue homeostasis. Besides regulatory proteins and microRNAs, long noncoding RNA (lncRNA) is another emerging critical layer of the intricate modulatory architecture for the control of the mTOR signaling circuit. Also, the production of numerous lncRNAs is induced by mTOR treatment. These findings offer new perspectives for designing novel diagnostic and therapeutic strategies. In this review, we summarize the interactions between the mTOR signaling pathway and lncRNAs in the development and progression of various types of tumors, focusing on the mechanisms of these interactions, and also discuss the potential use of lncRNAs as biomarkers and therapeutic targets for malignancies.
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Affiliation(s)
- Tinglei Huang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China
| | - Meiling Wang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China
| | - Bo Huang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China
| | - Augustus Chang
- Rutgers University, 604 Allison Road, Piscataway, NJ, 08854, USA
| | - Feng Liu
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China
| | - Yanjie Zhang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China.
| | - Bin Jiang
- Oncology Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 201900, China.
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307
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High level of lncRNA H19 expression is associated with shorter survival in esophageal squamous cell cancer patients. Pathol Res Pract 2019; 215:152638. [PMID: 31551175 DOI: 10.1016/j.prp.2019.152638] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 08/25/2019] [Accepted: 09/15/2019] [Indexed: 02/06/2023]
Abstract
AIM Long non-coding RNA (lncRNA) is currently considered to play an important regulatory role in various diseases, including tumors, at present a hot topic in research. As a non-coding transcription product of imprinted gene, LncRNA H19 is expressed as a parent imprinted maternal allele without protein-coding ability. Increasing evidence indicates that LncH19 may be a new tumor marker for early clinical diagnosis and prognosis judgment. In this study, LncH19 expression was investigated by RNA in situ hybridization for further exploring the clinicopathological role of its expression in esophageal squamous cell cancer (ESCC). METHODS 121 tumor samples and seven cases of adjacent non-tumor tissues from esophageal cancer patients were detected by RNA in situ hybridization (ISH) and the ISH staining was graded with modified Allred scoring. RESULTS While no LncH19 expression in the tumor adjacent to normal epithelia was disclosed with the technology, significantly higher levels of LncH19 expression were detected in the tumors obtained from the patients who died within one year after surgery, compared to the expression in those tumors from the patients who survived longer than five years after the same treatment regimen (P = 0.001). In addition, LncH19 expression was verified to correlate with a larger tumor size (P = 0.002) and a higher UICC stage (P = 0.001). CONCLUSION Our LncH19 ISH data verify the involvement of LncH19 in ESCC. Higher levels of LncH19 expression were not only detected in tumors with larger size and in clinical late stage, but also significantly associated with shorter survival, strongly indicating its clinical significance in the malignant progression of ESCC and useful value as a poor prognostic factor for the patients.
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308
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Wu X, Li J, Ren Y, Zuo Z, Ni S, Cai J. MEG3 can affect the proliferation and migration of colorectal cancer cells through regulating miR-376/PRKD1 axis. Am J Transl Res 2019; 11:5740-5751. [PMID: 31632544 PMCID: PMC6789261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 08/07/2019] [Indexed: 06/10/2023]
Abstract
The down-regulation of long non-coding RNA (lncRNA) MEG3 has been observed in various cancers; nonetheless, underlying mechanisms are still unclear. The current research work aims at exploring the roles of MEG3 in the pathogenesis of CRC and the associated mechanism. We observed that MEG3 was significantly down-regulated in both CRC tumor tissue and cell lines; also, the transient over-expression of MEG3 in CRC cell line SW480 and LoVo inhibited the proliferation and the migration and clone formation capability of cells; on the other hand, the knockdown of MEG3 has revealed opposite effects. Eventually, we figured it out that target miR-376 directly targeted both MEG3 and PRDK1 in SW480 and LoVo cells. To conclude, as our findings proved, MEG3 is likely to act as a tumor suppressor in the pathogenesis of CRC by means of the regulation of the miR-376/PRDK1 signal axis, suggesting that MEG3 has the potential to become a novel therapeutic target for the treatment of CRC.
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Affiliation(s)
- Xiangbin Wu
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University Wenzhou, Zhejiang, China
| | - Jinlei Li
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University Wenzhou, Zhejiang, China
| | - Yuehan Ren
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University Wenzhou, Zhejiang, China
| | - Zhigui Zuo
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University Wenzhou, Zhejiang, China
| | - Shichang Ni
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University Wenzhou, Zhejiang, China
| | - Jianhui Cai
- Department of Colorectal and Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University Wenzhou, Zhejiang, China
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309
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Jiang H, Shi X, Ye G, Xu Y, Xu J, Lu J, Lu W. Up-regulated long non-coding RNA DUXAP8 promotes cell growth through repressing Krüppel-like factor 2 expression in human hepatocellular carcinoma. Onco Targets Ther 2019; 12:7429-7436. [PMID: 31571902 PMCID: PMC6750713 DOI: 10.2147/ott.s214336] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/19/2019] [Indexed: 12/14/2022] Open
Abstract
Background and aim Long non-coding RNAs (lncRNAs) are implicated as novel factors in tumorigenesis and tumor progression. Although thousands of lncRNAs have been discovered, only a small portion have been functionally determined in hepatocellular carcinoma (HCC). Here, we aimed to comprehensively analyze differentially expressed lncRNAs, evaluate their clinical significance, and explore the functional roles and underlying mechanism in HCC. Methods We identified hundreds of lncRNAs which were dysregulated in HCC tissues through performing integrative analyses using the RNA sequencing data and independent gene microarray data from Gene Expression Omnibus and the Cancer Genome Atlas. Results Dysregulated DUXAP8, LINC01116, LINC01138, and PCAT6 are significantly associated with HCC patients' poor outcomes. Further experimental validation revealed that down-regulation of lncRNA DUXAP8 inhibited HCC cells proliferation and colony formation ability. Mechanistically, DUXAP8 repressed tumor suppressor KLF2 transcription through interacting with histone-lysine N-methyltransferase enzyme enhancer of zeste homolog 2. Conclusion Taken together, our findings can provide a valuable resource of HCC-associated lncRNAs and new insights into the biological functions of lncRNAs in HCC development.
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Affiliation(s)
- Hao Jiang
- Department of General Surgery, Huzhou Central Hospital, Huzhou, People's Republic of China
| | - Xuefei Shi
- Department of Respiratory Medicine, Huzhou Hospital, Zhejiang University School of Medicine, Huzhou, People's Republic of China
| | - Guochao Ye
- Department of General Surgery, Huzhou Central Hospital, Huzhou, People's Republic of China
| | - Yongcan Xu
- Department of General Surgery, Huzhou Central Hospital, Huzhou, People's Republic of China
| | - Jiewei Xu
- Department of General Surgery, Huzhou Central Hospital, Huzhou, People's Republic of China
| | - Jun Lu
- Department of General Surgery, Huzhou Central Hospital, Huzhou, People's Republic of China
| | - Wei Lu
- Department of General Surgery, Huzhou Central Hospital, Huzhou, People's Republic of China
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310
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lncRNA miat functions as a ceRNA to upregulate sirt1 by sponging miR-22-3p in HCC cellular senescence. Aging (Albany NY) 2019; 11:7098-7122. [PMID: 31503007 PMCID: PMC6756895 DOI: 10.18632/aging.102240] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 08/22/2019] [Indexed: 12/19/2022]
Abstract
Hepatocellular carcinoma (HCC) is a leading cause of cancer related deaths and lacks effective therapies. Cellular senescence acts as a barrier against cancer progression and plays an important role in tumor suppression. Senescence associated long noncoding RNAs (SAL-RNAs) are thought to be critical regulators of cancer development. Here, the long noncoding RNA (lncRNA) myocardial infarction-associated transcript (miat) was first identified as an HCC specific SALncRNA. Knockdown of miat significantly promoted cellular senescence and inhibited HCC progression. Mechanistic study revealed that SAL-miat acted as a competitive endogenous RNA (ceRNA) that upregulated the expression of sirt1 by sponging miR-22-3p. Moreover, miat downregulation activated the tumor suppressor pathway (p53/p21 and p16/pRb) and stimulated senescent cancer cells to secrete senescence-associated secretory phenotype (SASP), which contributed to inhibition of tumor cell proliferation, and resulted in the suppression of HCC tumorigenesis. Together, our study provided mechanistic insights into a critical role of miat as a miRNA sponge in HCC cellular senescence, which might offer a potential therapeutic strategy for HCC treatment.
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311
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Chen J, Lan J, Ye Z, Duan S, Hu Y, Zou Y, Zhou J. Long noncoding RNA LRRC75A-AS1 inhibits cell proliferation and migration in colorectal carcinoma. Exp Biol Med (Maywood) 2019; 244:1137-1143. [PMID: 31505952 DOI: 10.1177/1535370219874339] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
With the continuous improvement of technology in the molecular field, more and more evidence indicated that long noncoding RNAs (lncRNAs) are widely expressed in a broad spectrum of human tumors, playing an important role in the development and progression of tumors. Most studies reported that lncRNAs might serve as reliable biomarkers and effective clinical therapeutic target. Leucine-rich repeat containing 75 A-antisense RNA1 (LRRC75A-AS1) was reported to be relevant to many types of cancers and indicated to do influence on colorectal carcinoma (CRC). This research firstly examined the role of LRRC75A-AS1 in CRC and analyzed its association with the biological behaviors of CRC cells. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) brought to light that LRRC75A-AS1 was remarkably expressed at low levels in CRC tissues. We also found that LRRC75A-AS1 was localized in the cytoplasm. In addition, LRRC75A-AS1 knockdown also notably promoted CRC cell proliferation, metastasis, invasion, and colony formation. To summarize, these experimental results showed that LRRC75A-AS1 might serve as an anti-oncogene for CRC tumorigenesis and advancement, and it may become a novel molecular marker for clinical diagnosis. Impact statement It is reported that colorectal cancer has seriously threatened human health. The incidence of colorectal cancer in China is increasing year by year. At present, the treatment of cancer is gradually developing towards individualized treatment whose core is targeted therapy, and molecular pathology is the basis of targeted therapy. Previous studies have shown that in addition to protein-coding genes that regulate tumor invasion and metastasis, there are also some non-coding genes involved in tumor encroachment and spread. Our study found that long noncoding RNA LRRC75A-AS1 is closely related to CRC and is related to its proliferation and migration. And it may become a novel molecular marker for clinical diagnosis and treatment.
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Affiliation(s)
- Jianxiong Chen
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiawen Lan
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhiwei Ye
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Shiyu Duan
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou 510515, China
| | - Yukun Hu
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou 510515, China
| | - Ying Zou
- Department of Traditional Chinese Medicine, Scientific Research Platform, The Second School of Clinical Medicine, Guangdong Medical University, Dongguan, 523808, China
| | - Jun Zhou
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou 510515, China
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312
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Xie Y, Wang M, Tian J, Li X, Yang M, Zhang K, Tan S, Luo L, Luo C, Peng L, Tang A. Long non-coding RNA expressed in macrophage co-varies with the inflammatory phenotype during macrophage development and polarization. J Cell Mol Med 2019; 23:6530-6542. [PMID: 31419045 PMCID: PMC6787567 DOI: 10.1111/jcmm.14557] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/19/2019] [Accepted: 07/02/2019] [Indexed: 12/13/2022] Open
Abstract
Advances in microarray, RNA‐seq and omics techniques, thousands of long non‐coding RNAs (lncRNAs) with unknown functions have been discovered. LncRNAs have presented a diverse perspective on gene regulation in diverse biological processes, especially in human immune response. Macrophages participate in the whole phase of immune inflammatory response. They are able to shape their phenotype and arouse extensive functional activation after receiving physiological and pathological stimuli. Emerging studies indicated that lncRNAs participated in the gene regulatory network during complex biological processes of macrophage, including macrophage‐induced inflammatory responses. Here, we reviewed the existing knowledges of lncRNAs in the processes of macrophage development and polarization, and their roles in several different inflammatory diseases. Specifically, we focused on how lncRNAs function in macrophage, which might help to discover some potential therapeutic targets and diagnostic biomarkers.
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Affiliation(s)
- Yixin Xie
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Urological Organ Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Min Wang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jingjing Tian
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xianping Li
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Min Yang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Kan Zhang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shan Tan
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lingli Luo
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Can Luo
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Longkai Peng
- Department of Urological Organ Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Aiguo Tang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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313
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Liu Q, Liu N, Shangguan Q, Zhang F, Chai W, Tong X, Zhao X, Li Z, Qi D, Ye X. LncRNA SAMD12-AS1 promotes cell proliferation and inhibits apoptosis by interacting with NPM1. Sci Rep 2019; 9:11593. [PMID: 31406141 PMCID: PMC6691116 DOI: 10.1038/s41598-019-48116-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 07/22/2019] [Indexed: 12/16/2022] Open
Abstract
Chronic hepatitis B virus infection is a major risk factor for hepatocellular carcinoma. HBV infection affects lncRNA expression in infected cells, but the detailed mechanism and biological significance are not yet clear. In this study, we focused on exploring the function of the HBV-upregulated lncRNA SAMD12-AS1 in cell proliferation. We found that there is a higher level of SAMD12-AS1 expression in tumors than in adjacent nontumorous liver tissues. We showed that ectopic expression of SAMD12-AS1 promotes cell growth and blocks apoptosis, while knockdown of SAMD12-AS1 inhibits cell proliferation and enhances etoposide-induced apoptosis. Using RNA immunoprecipitation and mass spectrometry, we determined that SAMD12-AS1 interacts with NPM1 and confirmed that SAMD12-AS1(1-350) is required for the interaction with NPM1. As it is known that NPM1 interacts with the E3 ligase HDM2 and reduces HDM2-mediated p53 degradation, we examined whether SAMD12-AS1 can affect p53 stability. Overexpression of SAMD12-AS1 caused a reduction in p53 protein levels by shortening its half-life. Conversely, knockdown of SAMD12-AS1 prolonged the half-life of p53. We further demonstrated that SAMD12-AS1 increased the interaction of HDM2 and p53 and enhanced p53 ubiquitination. Our findings reveal that HBV-upregulated SAMD12-AS1 regulates cell proliferation and apoptosis via the NPM1-HDM2-p53 axis.
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Affiliation(s)
- Qi Liu
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, 650504, Kunming, China
| | - Ningning Liu
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China
| | - Qilin Shangguan
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fang Zhang
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenjia Chai
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaomei Tong
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China
| | - Xin Zhao
- 302 Hospital of PLA, Beijing, 100039, China
| | - Zhiwei Li
- 302 Hospital of PLA, Beijing, 100039, China
| | - Dandan Qi
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China.
| | - Xin Ye
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, 100101, China. .,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100049, China.
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314
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Wei X, Gu X, Ma M, Lou C. Long noncoding RNA HCP5 suppresses skin cutaneous melanoma development by regulating RARRES3 gene expression via sponging miR-12. Onco Targets Ther 2019; 12:6323-6335. [PMID: 31496735 PMCID: PMC6698080 DOI: 10.2147/ott.s195796] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/01/2019] [Indexed: 12/26/2022] Open
Abstract
Objective This research aimed to investigate the role and mechanism of long noncoding RNA (lncRNA) HCP5 in skin cutaneous melanoma (SKCM). Materials and methods Survival analysis was performed using The Cancer Genome Atlas (TCGA)-SKCM data and SKCM patients’ clinical data. Primary SKCM cells were derived from patients’ pathologic tissue specimens. HCP5 overexpression was achieved by lentiviral transduction. Malignancy of SKCM cells was evaluated in vitro by cell proliferation, colony formation, apoptosis and transwell invasion assays. RARRES3 knockdown was achieved by siRNA transfection. DIANA microT-CDS algorithm was used to predict miRNAs that might interact with HCP5 and 3ʹ untranslated region of RARRES3 mRNA. microRNA target luciferase reporter assay and AGO2-RNA immunoprecipitation were used to verify the interaction between HCP5, 3ʹ UTR of RARRES3 mRNA and miR-1286. Results HCP5 level was decreased in SKCM tissue specimens compared to noncancerous counterparts. Low expression of HCP5 was associated with SKCM patients’ poor overall survival and disease progression. HCP5 overexpression significantly reduced the malignancy of primary SKCM cells in vitro. RARRES3 was found as a HCP5-co-expressing gene in SKCM cells. HCP5 overexpression significantly increased RARRES3 expression in SKCM cells. RARRES3 knockdown partially abolished the anti-SKCM effect of HCP5 overexpression. MiR-1286 was found interacting with both HCP5 and 3ʹ UTR of RARRES3 mRNA. Conclusion HCP5 is a cancer-suppressive lncRNA in SKCM. HCP5 overexpression decreased SKCM cell malignancy in vitro by upregulating RARRES3, possibly via sponging miR-1286.
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Affiliation(s)
| | | | | | - Chunxiang Lou
- Department of Gynecology and Obstetrics, the Third Hospital of Ji'nan, Jinan, Shandong 250132, People's Republic of China
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315
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Chen D, Lu T, Tan J, Li H, Wang Q, Wei L. Long Non-coding RNAs as Communicators and Mediators Between the Tumor Microenvironment and Cancer Cells. Front Oncol 2019; 9:739. [PMID: 31448238 PMCID: PMC6691164 DOI: 10.3389/fonc.2019.00739] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 07/23/2019] [Indexed: 12/19/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are a class of more than 200 nucleotides RNA transcripts which have limited protein coding capacity. They regulate numerous biological processes in cancers through diverse molecular mechanisms. Aberrant expression of lncRNAs has been frequently associated with human cancer. Furthermore, the tumor microenvironment (TME) is composed of different cells such as cancer-associated fibroblasts (CAFs), endothelial cells and infiltrated immune cells, and all of which participate in communication with tumor cells affecting the progression of tumor. LncRNAs are directly and indirectly involved in the crosstalk between stromal cells and tumor cells and dysregulated lncRNAs expression in these cells could drive tumorigenesis. In this review, we explore the influence of aberrantly expressed lncRNAs in tumor progression, clarify the critical roles of lncRNAs in the TME, summarize findings on crosstalk between infiltrated immune cells, CAFs, endothelial cells, and tumor cells via lncRNAs, and discuss the promise of lncRNAs as tumor diagnostic markers and therapeutic targets.
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Affiliation(s)
- Di Chen
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Tong Lu
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Junying Tan
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hao Li
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qiuyue Wang
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Liangzhou Wei
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, China
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316
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Feng S, Ji G, Ma J, Wang Z, Zhao Y, Tao C. Long noncoding RNA GAS5 does not regulate HBV replication. J Med Virol 2019; 91:1949-1959. [PMID: 31301149 DOI: 10.1002/jmv.25547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/06/2019] [Indexed: 02/05/2023]
Abstract
Hepatitis B virus (HBV) infection remains a severe health burden worldwide. Emerging long noncoding RNAs (lncRNAs) are hijacked to enhance virus replication or employed by the host to stimulate immune responses to clear the virus. LncRNA growth arrest-specific transcript 5 (GAS5) can regulate RNA virus by suppressing the replication of both hepatitis C virus and human immunodeficiency virus. In this study, we explored the changes of HBV replication by overexpressing or knocking down GAS5 in HepAD38 cell and HepG2 cell transfected with pHBV1.2. We found HBV can induce the expression of GAS5. However, GAS5 had no effect on extracellular HBsAg and HBeAg, nor intracellular HBV RNA and HBV DNA. In addition, GAS5 possessed similar expression levels between stable HBV-producing cell lines and hepatoma cell lines. Furthermore, GAS5 showed no difference between healthy subjects and patients with chronic HBV in multiple GEO microarray data sets by GEO2R analysis. Taken together these results, GAS5 does not modulate the replication of HBV but it inhibits cell proliferation in HepAD38. This provides insights into the possible roles of GAS5 in HBV infection.
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Affiliation(s)
- Shu Feng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Gaili Ji
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jie Ma
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Zhonghao Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yanhua Zhao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chuanmin Tao
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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317
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Wang Y, Guo B, Xiao Z, Lin H, Zhang X, Song Y, Li Y, Gao X, Yu J, Shao Z, Li X, Luo Y, Li S. Long noncoding RNA CCDC144NL-AS1 knockdown induces naïve-like state conversion of human pluripotent stem cells. Stem Cell Res Ther 2019; 10:220. [PMID: 31358062 PMCID: PMC6664583 DOI: 10.1186/s13287-019-1323-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 06/18/2019] [Accepted: 07/02/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Human naïve pluripotency state cells can be derived from direct isolation of inner cell mass or primed-to-naïve resetting of human embryonic stem cells (hESCs) through different combinations of transcription factors, small molecular inhibitors, and growth factors. Long noncoding RNAs (lncRNAs) have been identified to be crucial in diverse biological processes, including pluripotency regulatory circuit of mouse pluripotent stem cells (PSCs), but few are involved in human PSCs' regulation of pluripotency and naïve pluripotency derivation. This study initially planned to discover more lncRNAs possibly playing significant roles in the regulation of human PSCs' pluripotency, but accidently identified a lncRNA whose knockdown in human PSCs induced naïve-like pluripotency conversion. METHODS Candidate lncRNAs tightly correlated with human pluripotency were screened from 55 RNA-seq data containing human ESC, human induced pluripotent stem cell (iPSC), and somatic tissue samples. Then loss-of-function experiments in human PSCs were performed to investigate the function of these candidate lncRNAs. The naïve-like pluripotency conversion caused by CCDC144NL-AS1 knockdown (KD) was characterized by quantitative real-time PCR, immunofluorescence staining, western blotting, differentiation of hESCs in vitro and in vivo, RNA-seq, and chromatin immunoprecipitation. Finally, the signaling pathways in CCDC144NL-AS1-KD human PSCs were examined through western blotting and analysis of RNA-seq data. RESULTS The results indicated that knockdown of CCDC144NL-AS1 induces naïve-like state conversion of human PSCs in the absence of additional transcription factors or small molecular inhibitors. CCDC144NL-AS1-KD human PSCs reveal naïve-like pluripotency features, such as elevated expression of naïve pluripotency-associated genes, increased developmental capacity, analogous transcriptional profiles to human naïve PSCs, and global reduction of repressive chromatin modification marks. Furthermore, CCDC144NL-AS1-KD human PSCs display inhibition of MAPK (ERK), accumulation of active β-catenin, and upregulation of some LIF/STAT3 target genes, and all of these are concordant with previously reported traits of human naïve PSCs. CONCLUSIONS Our study unveils an unexpected role of a lncRNA, CCDC144NL-AS1, in the naïve-like state conversion of human PSCs, providing a new perspective to further understand the regulation process of human early pluripotency states conversion. It is suggested that CCDC144NL-AS1 can be potentially valuable for future research on deriving higher quality naïve state human PSCs and promoting their therapeutic applications.
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Affiliation(s)
- Yingying Wang
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China
| | - Baosen Guo
- College of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Zengrong Xiao
- College of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Haijun Lin
- College of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Xi Zhang
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China
| | - Yueqiang Song
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China
| | - Yalei Li
- College of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Xuehu Gao
- College of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Jinjun Yu
- College of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Zhihua Shao
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China
| | - Xuekun Li
- The Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, 310052, China
| | - Yuping Luo
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China. .,Human Aging Research Institute and School of Life Science, Nanchang University, Nanchang, 330031, China.
| | - Siguang Li
- Stem Cell Translational Research Center, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China. .,Collaborative Innovation Center for Brain Science, Tongji University, Shanghai, 200092, China.
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318
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Jiang L, Li Z, Wang R. Long non‑coding RNAs in lung cancer: Regulation patterns, biologic function and diagnosis implications (Review). Int J Oncol 2019; 55:585-596. [PMID: 31364742 PMCID: PMC6685594 DOI: 10.3892/ijo.2019.4850] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/16/2019] [Indexed: 12/12/2022] Open
Abstract
Lung cancer is the most common malignancy with the highest mortality worldwide. Emerging research has demonstrated that long non-coding RNAs (lncRNAs), a key genomic product, are commonly dysregulated in lung cancer and have significant functions in lung cancer initiation, progression and therapeutic response. lncRNAs may interact with DNA, RNA or proteins, as tumor suppressor genes or oncogenes, to regulate gene expression and cell signaling pathways. In the present review, first a summary was presented of the causal effects of dysregulated lncRNAs in lung cancer. Next, the function and specific mechanisms of lncRNA-mediated tumorigenesis, metastasis and drug resistance in lung cancer were discussed. Finally, the potential roles of lncRNAs as biomarkers for lung cancer were explored.
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Affiliation(s)
- Lin Jiang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Zheng Li
- The Key Laboratory of Carcinogenesis of The Chinese Ministry of Health, School of Basic Medical Sciences, Central South University, Changsha, Hunan 410078, P.R. China
| | - Ranran Wang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
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319
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Improved detection of gene fusions by applying statistical methods reveals oncogenic RNA cancer drivers. Proc Natl Acad Sci U S A 2019; 116:15524-15533. [PMID: 31308241 DOI: 10.1073/pnas.1900391116] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The extent to which gene fusions function as drivers of cancer remains a critical open question. Current algorithms do not sufficiently identify false-positive fusions arising during library preparation, sequencing, and alignment. Here, we introduce Data-Enriched Efficient PrEcise STatistical fusion detection (DEEPEST), an algorithm that uses statistical modeling to minimize false-positives while increasing the sensitivity of fusion detection. In 9,946 tumor RNA-sequencing datasets from The Cancer Genome Atlas (TCGA) across 33 tumor types, DEEPEST identifies 31,007 fusions, 30% more than identified by other methods, while calling 10-fold fewer false-positive fusions in nontransformed human tissues. We leverage the increased precision of DEEPEST to discover fundamental cancer biology. Namely, 888 candidate oncogenes are identified based on overrepresentation in DEEPEST calls, and 1,078 previously unreported fusions involving long intergenic noncoding RNAs, demonstrating a previously unappreciated prevalence and potential for function. DEEPEST also reveals a high enrichment for fusions involving oncogenes in cancers, including ovarian cancer, which has had minimal treatment advances in recent decades, finding that more than 50% of tumors harbor gene fusions predicted to be oncogenic. Specific protein domains are enriched in DEEPEST calls, indicating a global selection for fusion functionality: kinase domains are nearly 2-fold more enriched in DEEPEST calls than expected by chance, as are domains involved in (anaerobic) metabolism and DNA binding. The statistical algorithms, population-level analytic framework, and the biological conclusions of DEEPEST call for increased attention to gene fusions as drivers of cancer and for future research into using fusions for targeted therapy.
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320
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Zhu Y, He D, Bo H, Liu Z, Xiao M, Xiang L, Zhou J, Liu Y, Liu X, Gong L, Ma Y, Zhou Y, Zhou M, Xiong W, Yang F, Xing X, Li R, Li W, Cao K. The MRVI1-AS1/ATF3 signaling loop sensitizes nasopharyngeal cancer cells to paclitaxel by regulating the Hippo–TAZ pathway. Oncogene 2019; 38:6065-6081. [DOI: 10.1038/s41388-019-0858-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/01/2019] [Accepted: 05/15/2019] [Indexed: 12/12/2022]
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321
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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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Yang Z, Jiang S, Shang J, Jiang Y, Dai Y, Xu B, Yu Y, Liang Z, Yang Y. LncRNA: Shedding light on mechanisms and opportunities in fibrosis and aging. Ageing Res Rev 2019; 52:17-31. [PMID: 30954650 DOI: 10.1016/j.arr.2019.04.001] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/24/2019] [Accepted: 04/01/2019] [Indexed: 02/07/2023]
Abstract
Fibrosis is universally observed in multiple aging-related diseases and progressions and is characterized by excess accumulation of the extracellular matrix. Fibrosis occurs in various human organs and eventually results in organ failure. Noncoding RNAs (ncRNAs) have emerged as essential regulators of cellular signaling and relevant human diseases. In particular, the enigmatic class of long noncoding RNAs (lncRNAs) is a kind of noncoding RNA that is longer than 200 nucleotides and does not possess protein coding ability. LncRNAs have been identified to exert both promotive and inhibitory effects on the multifaceted processes of fibrosis. A growing body of studies has revealed that lncRNAs are involved in fibrosis in various organs, including the liver, heart, lung, and kidney. As lncRNAs have been increasingly identified, they have become promising targets for anti-fibrosis therapies. This review systematically highlights the recent advances regarding the roles of lncRNAs in fibrosis and sheds light on the use of lncRNAs as a potential treatment for fibrosis.
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323
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Competitive Endogenous RNA (ceRNA) Regulation Network of lncRNA-miRNA-mRNA in Colorectal Carcinogenesis. Dig Dis Sci 2019; 64:1868-1877. [PMID: 30734239 DOI: 10.1007/s10620-019-05506-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 01/29/2019] [Indexed: 01/26/2023]
Abstract
BACKGROUND Competitive endogenous RNA (ceRNA) regulation suggested complex network of all transcript RNAs including long noncoding RNAs (lncRNAs), which can act as natural miRNA sponges to inhibit miRNA functions and modulate mRNA expression. Until now, the specific ceRNA regulatory mechanism of lncRNA-miRNA-mRNA in colorectal cancer (CRC) still remains unclear. MATERIALS AND METHODS RNA sequencing data of 478 colon adenocarcinoma cases and 41 controls as well as 166 rectum adenocarcinoma cases and 10 controls were obtained from The Cancer Genome Atlas (TCGA) to investigate the significant changes of lncRNAs, miRNAs and mRNAs in colorectal carcinogenesis. The target lncRNAs and mRNAs of miRNAs were predicted by miRWalk. Functional and enrichment analyses were conducted by DAVID database. The lncRNA-miRNA-mRNA interaction network was constructed using Cytoscape. RESULTS We constructed ceRNA regulatory networks including 22 up-regulated lncRNAs, 12 down-regulated miRNAs and 122 up-regulated mRNAs, as well as 8 down-regulated lncRNAs, 43 up-regulated miRNAs and 139 down-regulated mRNAs. The GO enrichment showed that up-regulated genes mainly enriched in biological process including organic anion transport, collagen catabolic process, wound healing, Wnt receptor signalling and in pathways of tyrosine metabolism, taurine and hypotaurine metabolism, melanogenesis and phenylalanine metabolism. For down-regulated genes, significant enrichment was found in biological process of metal ion homeostasis, transmission of nerve impulse, cell-cell signalling, transmembrane transport and in pathways of ABC transporters, neuroactive ligand-receptor interaction, retinol metabolism, nitrogen metabolism and steroid hormone biosynthesis. CONCLUSION We identified significantly altered lncRNAs, miRNAs and mRNAs in colorectal carcinogenesis, which might serve as potential biomarkers for tumorigenesis of CRC. In addition, the ceRNA regulatory network of lncRNA-miRNA-mRNA was constructed, which would elucidate novel molecular mechanisms involved in initiation and progression of CRC, thus providing promising clues for clinical diagnosis and therapy.
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Wang C, Tan C, Wen Y, Zhang D, Li G, Chang L, Su J, Wang X. FOXP1-induced lncRNA CLRN1-AS1 acts as a tumor suppressor in pituitary prolactinoma by repressing the autophagy via inactivating Wnt/β-catenin signaling pathway. Cell Death Dis 2019; 10:499. [PMID: 31235696 PMCID: PMC6591247 DOI: 10.1038/s41419-019-1694-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/07/2019] [Accepted: 05/13/2019] [Indexed: 12/23/2022]
Abstract
As the commonest type of functional pituitary tumor, prolactinoma takes up around 40-60% of functional pituitary tumors. Despite dedications attributed to the treatment of prolactinoma, complete cure remains difficult. Hence, it is of significance to bring to light the underlying mechanism of prolactinoma. Long noncoding RNAs (lncRNAs) are a group of transcripts which can regulate various biological processes. In the present study, we explored an lncRNA that was differentially downregulated in prolactinoma samples. LncRNA clarin 1 antisense RNA 1 (CLRN1-AS1) was downregulated in 42 patient samples and inactivated the Wnt/β-catenin signaling pathway. Functionally, CLRN1-AS1 suppressed cell proliferation, promoted apoptosis, and inhibited autophagy. Subcellular fractionation assay revealed that CLRN1-AS1 was located in the cytoplasm of prolactinoma cells. Based on bioinformatics analysis and mechanism experiments, we determined that CLRN1-AS1 acted as a competing endogenous RNA (ceRNA) by sponging miR-217 to upregulate the dickkopf WNT signaling pathway inhibitor 1 (DKK1). Furthermore, Forkhead box P1 (FOXP1) was verified to be a transcription suppressor of CLRN1-AS1. In summary, this study revealed that FOXP1-induced CLRN1-AS1 regulated cellular functions in pituitary prolactinoma by sponging miR-217 to release the DKK1/Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Chao Wang
- Department of Neurosurgery, The Affiliated Cancer Hospital of Harbin Medical University, No.150, Haping Road, Nangang, Harbin, 150001, Heilongjiang, China.
| | - Chunlei Tan
- Department of Neurosurgery, The Affiliated Cancer Hospital of Harbin Medical University, No.150, Haping Road, Nangang, Harbin, 150001, Heilongjiang, China
| | - Yuan Wen
- Department of Neurosurgery, The Affiliated Cancer Hospital of Harbin Medical University, No.150, Haping Road, Nangang, Harbin, 150001, Heilongjiang, China
| | - Dongzhi Zhang
- Department of Neurosurgery, The Affiliated Cancer Hospital of Harbin Medical University, No.150, Haping Road, Nangang, Harbin, 150001, Heilongjiang, China
| | - Guofu Li
- Department of Neurosurgery, The Affiliated Cancer Hospital of Harbin Medical University, No.150, Haping Road, Nangang, Harbin, 150001, Heilongjiang, China
| | - Liang Chang
- Department of Neurosurgery, The Affiliated Cancer Hospital of Harbin Medical University, No.150, Haping Road, Nangang, Harbin, 150001, Heilongjiang, China
| | - Jun Su
- Department of Neurosurgery, The Affiliated Cancer Hospital of Harbin Medical University, No.150, Haping Road, Nangang, Harbin, 150001, Heilongjiang, China
| | - Xin Wang
- Department of Neurosurgery, The Affiliated Cancer Hospital of Harbin Medical University, No.150, Haping Road, Nangang, Harbin, 150001, Heilongjiang, China
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325
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He TY, Li SH, Huang J, Gong M, Li G. Prognostic value of long non-coding RNA CRNDE in gastrointestinal cancers: a meta-analysis. Cancer Manag Res 2019; 11:5629-5642. [PMID: 31296996 PMCID: PMC6596349 DOI: 10.2147/cmar.s201646] [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: 01/15/2019] [Accepted: 05/24/2019] [Indexed: 01/16/2023] Open
Abstract
Purpose Numerous studies have reported that the long non-coding RNA colorectal neoplasia differentially expressed (CRNDE) plays important roles in the tumorigenesis, progression, and prognosis of various types of cancer. However, thus far, a systematic analysis of CRNDE in cancers of the digestive system has not been conducted. Thus, the aim of this meta-analysis was to explore the relationship between CRNDE expression and survival or the clinicopathological features of gastrointestinal cancer. Methods Eligible studies were collected from nine databases (ie, PubMed, Medline, Embase, Cochrane Library, Ovid, Science Citation Index Expanded, China Biology Medicine, Chinese National Knowledge Infrastructure, and Wanfang). The meta-analysis was conducted using the Stata SE.12 Software. The pooled hazard ratio (HR) or odds ratio (OR) with a 95% confidence interval (Cl) was used to assess the clinical value of CRNDE expression in gastrointestinal cancers. Results A total of 1,053 patients from nine articles were selected. The analysis provided evidence suggesting a significant negative correlation between high CRNDE expression and the rate of overall survival [HR=1.92, 95% CI (1.40–2.64), p<0.001] in patients with malignancies of the digestive system. A positive correlation was observed between high CRNDE expression and lymph node metastasis [OR=2.82, 95% CI (1.85–4.31), p<0.001], distant metastasis [OR=2.72, 95% CI (1.16–6.35), p=0.021], more advanced tumor-node-metastasis stage [OR=3.13, 95% CI (2.03–4.83), p<0.001], and tumor size >5 cm [OR=2.81, 95% CI (1.62–4.88), p<0.001]. In the non-colorectal cancer subgroup, high CRNDE expression predicted worse histopathological grade [OR=2.21, 95% CI (1.37–3.57), p=0.001] and depth of tumor invasion [OR=2.54, 95% CI (1.46–4.41), p=0.001]. Conclusion This meta-analysis revealed that CRNDE may be an unfavorable risk factor of survival and predict advanced clinicopathological features of patients with gastrointestinal cancer. These findings emphasize the usefulness of CRNDE as a predictor of prognosis and pathological biomarker in this type of tumors.
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Affiliation(s)
- Tian-Yu He
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Si-Han Li
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Jin Huang
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Ming Gong
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Guang Li
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
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326
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Xu T, Yan S, Jiang L, Yu S, Lei T, Yang D, Lu B, Wei C, Zhang E, Wang Z. Gene Amplification-Driven Long Noncoding RNA SNHG17 Regulates Cell Proliferation and Migration in Human Non-Small-Cell Lung Cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 17:405-413. [PMID: 31310946 PMCID: PMC6630039 DOI: 10.1016/j.omtn.2019.06.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 05/22/2019] [Accepted: 06/12/2019] [Indexed: 01/19/2023]
Abstract
Lung cancer is the most common cancer all around the world, with high morbidity and mortality. Long noncoding RNA (lncRNA) has been reported to have a critical role in non-small-cell lung cancer (NSCLC) proliferation and migration. In the present study, we analyzed The Cancer Genome Atlas (TCGA) data, and we found that lncRNA Small Nucleolar RNA Host Gene 17 (SNHG17) was upregulated in NSCLC driven by the amplification of copy number, indicating the special role of SNHG17 in NSCLC. The full exact length of SNHG17 was determined by rapid amplification of cDNA ends (RACE). We modulated SNHG17 expression by RNAi and a series of functional assays were performed. Flow cytometry was used to explore the involvement of SNHG17 in NSCLC cell apoptosis. Results showed that the knockdown of SNHG17 inhibited the proliferation and migration and promoted the apoptosis of NSCLC cells. We acquired the global gene expression profile regulated by SNHG17 in A549 through RNA sequencing (RNA-seq) assays. We found 637 genes were upregulated while 581 genes were downregulated. We selected three genes (FOXA1, XAF1, and BIK) that were closely related to proliferation and apoptosis, and we confirmed their altered expression in A549 and PC-9 cells treated with small interfering RNA si-SNHG17. Our findings indicated gene amplification-driven lncRNA SNHG17 promotes cell proliferation and migration in NSCLC, suggesting its potential value as a biomarker in NSCLC.
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Affiliation(s)
- Tianwei Xu
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China
| | - Shuai Yan
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China
| | - Lihua Jiang
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China
| | - Shanxun Yu
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China
| | - Tianyao Lei
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China
| | - Daolu Yang
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China
| | - Binbin Lu
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China
| | - Chenchen Wei
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China
| | - Erbao Zhang
- Department of Epidemiology and Biostatistics, Center for Global Health, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing 211100, P.R. China.
| | - Zhaoxia Wang
- Department of Oncology, Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, Jiangsu, P.R. China.
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327
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Yang M, Zhai Z, Zhang Y, Wang Y. Clinical significance and oncogene function of long noncoding RNA HAGLROS overexpression in ovarian cancer. Arch Gynecol Obstet 2019; 300:703-710. [PMID: 31197441 DOI: 10.1007/s00404-019-05218-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/07/2019] [Indexed: 01/07/2023]
Abstract
PURPOSE To explore the clinical significance and mechanism of long noncoding RNA (lncRNA) HAGLROS in ovarian cancer. METHODS The expression of HAGLROS in ovarian cancer was verified by online databases and quantitative reverse transcription polymerase chain reaction (qRT-PCR), and its relationship with clinicopathological parameters was analysed. Pearson correlation analysis was used to study the correlation between HAGLROS and miR-100 in ovarian cancer. Meta-analysis was used to explore the expression of miR-100 in ovarian cancer. In addition, we used bioinformatics to explore the target genes of miR-100 and perform functional analysis. RESULTS HAGLROS was significantly upregulated in ovarian cancer (P < 0.001) and was closely related to disease stage (P = 0.033), tumour size (P = 0.032) and poor prognosis (P = 0.019). HAGLROS had a certain diagnostic value in ovarian cancer (area under the curve = 0.751). MiR-100 was negatively correlated with HAGLROS (r = 0.167, P = 0.001) and significantly downregulated in ovarian cancer. Bioinformatics analysis predicted a total of 31 potential target genes that interact with miR-100. These target genes were mainly involved in the regulation of cellular catabolic process, proteoglycan biosynthetic process and positive regulation of proteasomal ubiquitin-dependent protein catabolic process. Among them, mTOR and ZNRF2 are hub genes. CONCLUSION HAGLROS is a potential biomarker for early diagnosis and prognosis evaluation of ovarian cancer. It can be used as a molecular sponge of miR-100 to regulate the expression of mTOR and ZNRF2 and affect the signal transduction of the mTOR pathway. HAGLROS is expected to be a new target for the treatment of ovarian cancer.
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Affiliation(s)
- Meiqin Yang
- Department of Gynecology and Obstetrics, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450000, Henan, China
| | - Zhensheng Zhai
- Department of Hepato-Biliary-Pancreatic Surgery, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, 450000, Henan, China
| | - Yunfeng Zhang
- Department of Gynecology and Obstetrics, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450000, Henan, China
| | - Yue Wang
- Department of Gynecology and Obstetrics, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450000, Henan, China.
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328
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Zhihua Z, Weiwei W, Lihua N, Jianying Z, Jiang G. p53-induced long non-coding RNA PGM5-AS1 inhibits the progression of esophageal squamous cell carcinoma through regulating miR-466/PTEN axis. IUBMB Life 2019; 71:1492-1502. [PMID: 31185143 DOI: 10.1002/iub.2069] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 05/01/2019] [Indexed: 12/11/2022]
Abstract
A growing body of evidence suggests that long non-coding RNA (lncRNA) is aberrantly expressed in human cancer and linked to cancer initiation and development. We previously identified Homo sapiens PGM5 antisense RNA 1 (PGM5-AS1) as a novel esophageal squamous cell carcinoma (ESCC)-related lncRNA by performing high-throughput RNA sequencing. However, its clinical implication and biological function in ESCC are still uncharacterized. In the present study, we found that PGM5-AS1 was frequently downregulated in ESCC tissues, plasma, and cell lines, and low PGM5-AS1 expression was positively correlated with poor differentiation, advanced tumor node metastasis (TNM) stage, and lymph node metastasis. Importantly, PGM5-AS1 was identified to be an effective diagnostic and prognostic biomarker for ESCC patients. Functional experiments revealed that exogenous expression of PGM5-AS1 significantly suppressed the proliferation, migration, and invasion of ESCC cells in vitro as well as tumor growth in vivo. Mechanistically, PGM5-AS1 was transcriptionally activated by p53 and it could directly interact with and sequester miR-466 to elevate PTEN expression, thereby inhibiting ESCC progression. Overall, our data indicate that PGM5-AS1 is a novel tumor suppressor in ESCC and restoration of PGM5-AS1 may be a promising avenue for treatment of ESCC patient.
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Affiliation(s)
- Zhao Zhihua
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Wang Weiwei
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Niu Lihua
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Zhang Jianying
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Guozhong Jiang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
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Guo J, Li Y, Duan H, Yuan L. LncRNA TUBA4B functions as a competitive endogenous RNA to inhibit gastric cancer progression by elevating PTEN via sponging miR-214 and miR-216a/b. Cancer Cell Int 2019; 19:156. [PMID: 31198405 PMCID: PMC6556040 DOI: 10.1186/s12935-019-0879-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/03/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Emerging evidence demonstrates that long non-coding RNA (lncRNA) is an important regulator in tumorigenesis and development. Tubulin Alpha 4B (TUBA4B), a novel lncRNA, was recently proposed as a tumor suppressor in several human cancers. However, its role in gastric cancer (GC) remains unclear. In this study, we aimed to investigate the expression level, clinical implication, biological function and potential regulatory mechanism of TUBA4B in GC. METHODS qRT-PCR was employed to detect the expression of TUBA4B in GC tissues, cell lines and plasma. In vitro and in vivo experiments were carried out using colony formation/CCK-8/transwell invasion/cell apoptosis assay and xenograft tumor model, respectively. mRNA sequencing was used to identify the TUBA4B-related downstream genes. RESULTS TUBA4B was significantly decreased in GC tissues, cells and plasma. Low TUBA4B was positively correlated with larger tumor size, lymph node metastasis and advanced TNM stage. Moreover, TUBA4B was identified as an effective biomarker for the diagnosis and prognosis of patients with GC. Functionally, ectopic expression of TUBA4B inhibited GC cell proliferation, invasion and induced apoptosis in vitro as well as dampened tumor growth and metastasis in vivo. Furthermore, TUBA4B was found to be a competitive endogenous RNA (ceRNA) that could physically bind to and sequester miR-214 and miR-216a/b to increase the expression of their common downstream target PTEN, resulting in inactivation of PI3K/AKT signaling pathway, thereby retarding GC progression. CONCLUSION Our data highlight the compelling regulatory role of TUBA4B in GC, and reactivation of TUBA4B may be a promising therapeutic avenue for GC patients.
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Affiliation(s)
- Jianbo Guo
- grid.412644.1Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, 4 Chongshan East Street, Shenyang, 110032 Liaoning People’s Republic of China
| | - Yan Li
- grid.412644.1Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, 4 Chongshan East Street, Shenyang, 110032 Liaoning People’s Republic of China
| | - He Duan
- grid.412644.1Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, 4 Chongshan East Street, Shenyang, 110032 Liaoning People’s Republic of China
| | - Lu Yuan
- grid.412644.1Department of General Surgery, The Fourth Affiliated Hospital of China Medical University, 4 Chongshan East Street, Shenyang, 110032 Liaoning People’s Republic of China
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Ouyang D, Li R, Li Y, Zhu X. A 7-lncRNA signature predict prognosis of Uterine corpus endometrial carcinoma. J Cell Biochem 2019; 120:18465-18477. [PMID: 31168849 DOI: 10.1002/jcb.29164] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/07/2019] [Accepted: 05/10/2019] [Indexed: 12/16/2022]
Abstract
Current research indicate that long noncoding RNAs (lncRNAs) are associated with the progression of various cancers and can be used as prognostic biomarkers. This study aims to construct a prognostic lncRNA signature for the risk assessment of Uterine corpus endometrial carcinoma (UCEC). The RNA-Seq expression profile and corresponding clinical data of UCEC patients obtained from The Cancer Genome Atlas database. First, some prognosis-related lncRNAs were obtained by univariate Cox analysis. The minimum absolute contraction and selection operator (LASSO) regression and the Cox proportional hazard regression method were used to further identify the lncRNA prognostic model. Finally, seven lncRNAs (AC110491.1, AL451137.1, AC005381.1, AC103563.2, AC007422.2, AC108025.2, and MIR7-3HG) were identified as potential prognostic factors. According to the model constructed by the above analysis, the risk score of each UCEC patient was calculated, and the patients were classified into high and low-risk groups. The low-risk group had significant survival benefits. Moreover, we constructed a nomogram that incorporated independent prognostic factors (age, tumor stage, tumor grade, and risk score). The c-index value for evaluating the predictive nomogram model was 0.801. The area under the curve was 0.797 (3-year survival). The calibration curve also showed that there was a satisfactory agreement between the predicted and observed values in the probability of 1-, 3-, and 5-year overall survival. On the basis of the coexpression relationship, we established a coexpression network of lncRNA-messenger RNA (mRNA) of the 7-lncRNA. The Kyoto Encyclopedia of Genes and Genomes analysis of the coexpressing mRNAs showed that the main pathways related to the 7-lncRNA signature were neuroactive ligand-receptor interaction, serotonergic synapse, and gastric cancer pathway. Therefore, our study revealed that the 7-lncRNA could be used to predict the prognosis of UCEC and for postoperative treatment and follow-up.
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Affiliation(s)
- Dong Ouyang
- Department of Obstetrics and Gynecology, Akesu Hospital of Traditional Chinese Medicine, Akesu, China
| | - Ruyi Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yaxian Li
- Department of Obstetrics and Gynecology, Akesu Hospital of Traditional Chinese Medicine, Akesu, China
| | - Xueqiong Zhu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Oncogenic lncRNA downregulates cancer cell antigen presentation and intrinsic tumor suppression. Nat Immunol 2019; 20:835-851. [PMID: 31160797 PMCID: PMC6619502 DOI: 10.1038/s41590-019-0400-7] [Citation(s) in RCA: 234] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 04/12/2019] [Indexed: 12/12/2022]
Abstract
The mechanisms through which tumor cells genetically lose antigenicity and evade immune checkpoints remain largely elusive. Here, we report that tissue-specific expression of the human long-noncoding RNA LINK-A in mouse mammary glands initiated metastatic mammary gland tumors, which phenotypically resembled human triple-negative breast cancer (TNBC). LINK-A expression facilitated crosstalk between phosphatidylinositol-(3,4,5)-trisphosphate and inhibitory G-protein–coupled receptor (GPCR) pathways, attenuating protein kinase A (PKA)-mediated phosphorylation of the E3 ubiquitin ligase TRIM71. Consequently, LINK-A expression enhanced K48–polyubiquitination-mediated degradation of the antigen peptide-loading complex (PLC) and intrinsic tumor suppressors Rb and p53. Treatment with LINK-A-locked nucleic acids or GPCR antagonists stabilized the PLC components, Rb, and p53, and sensitized mammary gland tumors to immune checkpoint blockers (ICBs). Importantly, PD-1 blockade-resistant TNBC patients exhibited elevated LINK-A levels and downregulated PLC components. Hence, we demonstrated lncRNA-dependent downregulation of antigenicity and intrinsic tumor suppression, which may provide the basis for developing a therapeutic regimen of combinational immunotherapy and effective early prevention for TNBCs.
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Yang J, Liu Y, Mai X, Lu S, Jin L, Tai X. STAT1-induced upregulation of LINC00467 promotes the proliferation migration of lung adenocarcinoma cells by epigenetically silencing DKK1 to activate Wnt/β-catenin signaling pathway. Biochem Biophys Res Commun 2019; 514:118-126. [DOI: 10.1016/j.bbrc.2019.04.107] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 04/14/2019] [Indexed: 01/10/2023]
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333
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Zhuan B, Lu Y, Chen Q, Zhao X, Li P, Yuan Q, Yang Z. Overexpression of the long noncoding RNA TRHDE‐AS1 inhibits the progression of lung cancer via the miRNA‐103/KLF4 axis. J Cell Biochem 2019; 120:17616-17624. [PMID: 31119790 DOI: 10.1002/jcb.29029] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 04/20/2019] [Accepted: 04/29/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Bing Zhuan
- Department of Respiratory Medicine Ningxia Hui Autonomous Region People's Hospital Yinchuan Ningxia China
- Department of Respiratory Medicine The First Affiliated Hospital of Northwest University for Nationalities Yinchuan Ningxia China
| | - Yuting Lu
- Second Department of Internal Medicine Luohe Hospital of Traditional Chinese Medicine Luohe Henan China
| | - Qian Chen
- Department of Respiratory Medicine Ningxia Hui Autonomous Region People's Hospital Yinchuan Ningxia China
- Department of Respiratory Medicine The First Affiliated Hospital of Northwest University for Nationalities Yinchuan Ningxia China
| | - Xia Zhao
- Department of Respiratory Medicine Ningxia Hui Autonomous Region People's Hospital Yinchuan Ningxia China
- Department of Respiratory Medicine The First Affiliated Hospital of Northwest University for Nationalities Yinchuan Ningxia China
| | - Ping Li
- Department of Respiratory Medicine Ningxia Hui Autonomous Region People's Hospital Yinchuan Ningxia China
- Department of Respiratory Medicine The First Affiliated Hospital of Northwest University for Nationalities Yinchuan Ningxia China
| | - Qun Yuan
- Department of Respiratory Medicine Ningxia Hui Autonomous Region People's Hospital Yinchuan Ningxia China
- Department of Respiratory Medicine The First Affiliated Hospital of Northwest University for Nationalities Yinchuan Ningxia China
| | - Zhao Yang
- Department of Respiratory Medicine Suzhou Science & Technology Town Hospital Suzhou Jiangsu China
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334
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Yang L, Ye Y, Chu J, Jia J, Qu Y, Sun T, Yin H, Ming L, Wan J, He F. Long noncoding RNA FEZF1-AS1 promotes the motility of esophageal squamous cell carcinoma through Wnt/β-catenin pathway. Cancer Manag Res 2019; 11:4425-4435. [PMID: 31191005 PMCID: PMC6525003 DOI: 10.2147/cmar.s196004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 03/17/2019] [Indexed: 12/13/2022] Open
Abstract
Background: Long noncoding RNAs (lncRNAs), a class of noncoding RNA nucleotides >200 bp, has been demonstrated to play vital role in the development of cancer. FEZ family zinc finger 1 antisense RNA 1 (FEZF1-AS1) has been reported as an lncRNA which acts as a tumor-promoting effect in some cancers. However, the role of it in esophageal squamous cell carcinoma (ESCC) and its potential regulatory mechanism was unclear now. Methods: qRT-PCR was used to detect the levels of FEZF1-AS1 and mRNA CTNNB1 (β-catenin) in ESCC tissues and cells. Cell transfection experiments were used to knock down or overexpress the level of FEZF1-AS1 in EC1 and EC9706 cell lines. WST-1 assays, cell cycle assays, scratch wound assays, migration, and invasion assays were used to evaluate the function of FEZF1-AS1 in ESCC progression. Results: FEZF1-AS1 was remarkably upregulated in ESCC tissues and cell lines. Silencing of FEZF1-AS1 significantly inhibited the migration and invasion of ESCC cells, while overexpression of FEZF1-AS1 notably accelerated ESCC migration and invasion. Meanwhile, the levels of FEZF1-AS1 had no effect on ESCC cell proliferation and cell cycle. We also found that β-catenin was upregulated in ESCC tissues, and the level of it was positively correlated with the expression of FEZF1-AS1. Silencing of FEZF1-AS1 could decrease the mRNA and protein level of β-catenin, while overexpression FEZF1-AS1 could lead to the contrary. Conclusion: Our results suggested that the expression of lncRNA FEZF1-AS1 played an important role in ESCC progression, especially the motility of the tumor. FEZF1-AS1 may provide us with a new sight for ESCC treatment.
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Affiliation(s)
- Lijun Yang
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Yafei Ye
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Jie Chu
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Jinlin Jia
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Yunhui Qu
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Ting Sun
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Huiqing Yin
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Liang Ming
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Junhu Wan
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Fucheng He
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
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Martinez Chanza N, Tripathi A, Harshman LC. Adjuvant Therapy Options in Renal Cell Carcinoma: Where Do We Stand? Curr Treat Options Oncol 2019; 20:44. [DOI: 10.1007/s11864-019-0639-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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336
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Arjmand F, Afsan Z, Sharma S, Parveen S, Yousuf I, Sartaj S, Siddique HR, Tabassum S. Recent advances in metallodrug-like molecules targeting non-coding RNAs in cancer chemotherapy. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.02.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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337
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Ju C, Liu R, Zhang YW, Zhang Y, Zhou R, Sun J, Lv XB, Zhang Z. Mesenchymal stem cell-associated lncRNA in osteogenic differentiation. Biomed Pharmacother 2019; 115:108912. [PMID: 31048188 DOI: 10.1016/j.biopha.2019.108912] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 04/17/2019] [Accepted: 04/22/2019] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have the ability to differentiate into multiple cell types, including osteogenic, chondrogenic and adipogenic lineages. Osteogenic differentiation of MSCs plays a critical role in bone tissue engineering. Inducing MSC osteogenesis represents a potential treatment that promotes bone formation and bone regeneration. Recently, long non-coding RNA (lncRNA) was shown to participate in the occurrence and development of various diseases. Different lncRNA expression patterns can regulate the cell cycle, proliferation, metastasis, immunobiology and differentiation. With the recent extensive study of lncRNAs, an increasing number of lncRNAs are being studied in the MSC field. Furthermore, some lncRNAs have been confirmed to regulate MSC osteogenesis. Therefore, here, we review research concerning lncRNA in osteogenic differentiation of MSCs and highlight the importance of lncRNA in bone formation and bone regeneration.
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Affiliation(s)
- Cheng Ju
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The Third Affiliated Hospital of Nanchang University, Nanchang, China; Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, China; Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China.
| | - Renfeng Liu
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The Third Affiliated Hospital of Nanchang University, Nanchang, China; Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, China; Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China.
| | - Yuan-Wei Zhang
- Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China.
| | - Yu Zhang
- Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Ruihao Zhou
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The Third Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Jun Sun
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The Third Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Xiao-Bin Lv
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The Third Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Zhiping Zhang
- Jiangxi Key Laboratory of Cancer Metastasis and Precision Treatment, The Third Affiliated Hospital of Nanchang University, Nanchang, China; Department of Orthopedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, China.
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Esposito R, Bosch N, Lanzós A, Polidori T, Pulido-Quetglas C, Johnson R. Hacking the Cancer Genome: Profiling Therapeutically Actionable Long Non-coding RNAs Using CRISPR-Cas9 Screening. Cancer Cell 2019; 35:545-557. [PMID: 30827888 DOI: 10.1016/j.ccell.2019.01.019] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/20/2018] [Accepted: 01/28/2019] [Indexed: 12/26/2022]
Abstract
Long non-coding RNAs (lncRNAs) represent a huge reservoir of potential cancer targets. Such "onco-lncRNAs" have resisted traditional RNAi methods, but CRISPR-Cas9 genome editing now promises functional screens at high throughput and low cost. The unique biology of lncRNAs demands screening strategies distinct from protein-coding genes. The first such screens have identified hundreds of onco-lncRNAs promoting cell proliferation and drug resistance. Ongoing developments will further improve screen performance and translational relevance. This Review aims to highlight the potential of CRISPR screening technology for discovering new onco-lncRNAs, and to guide molecular oncologists wishing to apply it to their cancer of interest.
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Affiliation(s)
- Roberta Esposito
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Núria Bosch
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department for BioMedical Research, University of Bern, Bern, Switzerland; Graduate School of Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Andrés Lanzós
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department for BioMedical Research, University of Bern, Bern, Switzerland; Graduate School of Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Taisia Polidori
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department for BioMedical Research, University of Bern, Bern, Switzerland; Graduate School of Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Carlos Pulido-Quetglas
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department for BioMedical Research, University of Bern, Bern, Switzerland; Graduate School of Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Rory Johnson
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department for BioMedical Research, University of Bern, Bern, Switzerland.
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339
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Silva AM, Moura SR, Teixeira JH, Barbosa MA, Santos SG, Almeida MI. Long noncoding RNAs: a missing link in osteoporosis. Bone Res 2019; 7:10. [PMID: 30937214 PMCID: PMC6437190 DOI: 10.1038/s41413-019-0048-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/19/2019] [Accepted: 02/25/2019] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is a systemic disease that results in loss of bone density and increased fracture risk, particularly in the vertebrae and the hip. This condition and associated morbidity and mortality increase with population ageing. Long noncoding (lnc) RNAs are transcripts longer than 200 nucleotides that are not translated into proteins, but play important regulatory roles in transcriptional and post-transcriptional regulation. Their contribution to disease onset and development is increasingly recognized. Herein, we present an integrative revision on the studies that implicate lncRNAs in osteoporosis and that support their potential use as therapeutic tools. Firstly, current evidence on lncRNAs involvement in cellular and molecular mechanisms linked to osteoporosis and its major complication, fragility fractures, is reviewed. We analyze evidence of their roles in osteogenesis, osteoclastogenesis, and bone fracture healing events from human and animal model studies. Secondly, the potential of lncRNAs alterations at genetic and transcriptomic level are discussed as osteoporosis risk factors and as new circulating biomarkers for diagnosis. Finally, we conclude debating the possibilities, persisting difficulties, and future prospects of using lncRNAs in the treatment of osteoporosis.
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Affiliation(s)
- Andreia Machado Silva
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
| | - Sara Reis Moura
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
| | - José Henrique Teixeira
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Mário Adolfo Barbosa
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Susana Gomes Santos
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Maria Inês Almeida
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
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Liu L, Li T, Song G, He Q, Yin Y, Lu J, Bi X, Wang K, Luo S, Chen YS, Yang Y, Sun BF, Yang YG, Wu J, Zhu H, Shen X. Insight into novel RNA-binding activities via large-scale analysis of lncRNA-bound proteome and IDH1-bound transcriptome. Nucleic Acids Res 2019; 47:2244-2262. [PMID: 30698743 PMCID: PMC6412114 DOI: 10.1093/nar/gkz032] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 01/12/2019] [Accepted: 01/17/2019] [Indexed: 12/17/2022] Open
Abstract
RNA-binding proteins (RBPs) play pivotal roles in directing RNA fate and function. Yet the current annotation of RBPs is largely limited to proteins carrying known RNA-binding domains. To systematically reveal dynamic RNA-protein interactions, we surveyed the human proteome by a protein array-based approach and identified 671 proteins with RNA-binding activity. Among these proteins, 525 lack annotated RNA-binding domains and are enriched in transcriptional and epigenetic regulators, metabolic enzymes, and small GTPases. Using an improved CLIP (crosslinking and immunoprecipitation) method, we performed genome-wide target profiling of isocitrate dehydrogenase 1 (IDH1), a novel RBP. IDH1 binds to thousands of RNA transcripts with enriched functions in transcription and chromatin regulation, cell cycle and RNA processing. Purified IDH1, but not an oncogenic mutant, binds directly to GA- or AU-rich RNA that are also enriched in IDH1 CLIP targets. Our study provides useful resources of unconventional RBPs and IDH1-bound transcriptome, and convincingly illustrates, for the first time, the in vivo and in vitro RNA targets and binding preferences of IDH1, revealing an unanticipated complexity of RNA regulation in diverse cellular processes.
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Affiliation(s)
- Lichao Liu
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Tong Li
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Guang Song
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Qingxia He
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yafei Yin
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - J Yuyang Lu
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xianju Bi
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Kaili Wang
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Sai Luo
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yu-Sheng Chen
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, CAS Center for Excellence in Molecular Cell Science, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Ying Yang
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, CAS Center for Excellence in Molecular Cell Science, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Bao-Fa Sun
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, CAS Center for Excellence in Molecular Cell Science, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Yun-Gui Yang
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, CAS Center for Excellence in Molecular Cell Science, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
| | - Jiawei Wu
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Heng Zhu
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Xiaohua Shen
- Tsinghua-Peking Center for Life Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
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Chen Y, Guo Y, Yan W. lncRNA RP5-916L7.2 correlates with advanced tumor stage, and promotes cells proliferation while inhibits cells apoptosis through targeting miR-328 and miR-939 in tongue squamous cell carcinoma. Clin Biochem 2019; 67:24-32. [PMID: 30825424 DOI: 10.1016/j.clinbiochem.2019.02.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 02/18/2019] [Accepted: 02/27/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND This study aimed to investigate the correlation of lncRNA RP5-916L7.2 with tumor features of tongue squamous cell carcinoma (TSCC), and its effect on cells proliferation and apoptosis as well as its target miRNAs in TSCC cells. METHODS 30 TSCC patients underwent surgery were consecutively enrolled, tumor tissue and paired adjacent tissue were obtained for lncRNAs determination. Blank mimic (NC(+)), lncRNA RP5-916L7.2 mimic (RP5-916L7.2(+)), blank inhibitor (NC(-)), lncRNA RP5-916L7.2 inhibitor (RP5-916L7.2(-)), lncRNA RP5-916L7.2 inhibitor/miR-328-5p inhibitor (RP5-916L7.2(-)/miR-328(-)) and lncRNA RP5-916L7.2 inhibitor/miR-939-5p inhibitor (RP5-916L7.2(-)/miR-939(-)) plasmids were transfected into Tca-8113 cells. qPCR assay, CCK-8 assay, AV/PI assay were performed to detect the miRNA/lncRNA expression, cells proliferation and cells apoptosis, respectively. RESULTS lncRNA RP5-916L7.2 was increased in tumor tissue compared with paired adjacent tissue, and correlated with higher T stage, N stage as well as TNM stage in TSCC patients. In vitro experiments revealed that lncRNA RP5-916L7.2 promoted cells proliferation and repressed cells apoptosis in Tca-8113 cells. Subsequently, we selected top five potential target miRNAs of lncRNA RP5-916L7.2, and found that lncRNA RP5-916L7.2 reversely regulated the levels of miR-328-5p and miR-939-5p in Tca-8113 cells. Thus, we conducted rescue experiments, which showed that lncRNA RP5-916L7.2 enhanced cells proliferation and inhibited cells apoptosis through targeting miR-328-5p and miR-939-5p in Tca-8113 cells. CONCLUSIONS lncRNA RP5-916L7.2 was up regulated in tumor tissue and positively correlated with tumor stage, and promoted cells proliferation while inhibited cells apoptosis by targeting miR-328-5p and miR-939-5p in TSCC.
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Affiliation(s)
- Yong Chen
- Department of Oral and Maxillofacial Surgery, Cangzhou Central Hospital, Cangzhou, China
| | - Yanjun Guo
- Department of Oral and Maxillofacial Surgery, Cangzhou Central Hospital, Cangzhou, China.
| | - Wei Yan
- Department of Oral and Maxillofacial Surgery, Cangzhou Central Hospital, Cangzhou, China
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342
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Li D, Tang X, Li M, Zheng Y. Long noncoding RNA DLX6-AS1 promotes liver cancer by increasing the expression of WEE1 via targeting miR-424-5p. J Cell Biochem 2019; 120:12290-12299. [PMID: 30805988 PMCID: PMC6712946 DOI: 10.1002/jcb.28493] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/29/2018] [Accepted: 12/06/2018] [Indexed: 12/17/2022]
Abstract
Long noncoding RNAs (lncRNAs) played an important role in tumorigenesis and development of hepatocellular carcinoma (HCC). In this study, we first demonstrated that lncRNA DLX6 antisense RNA 1 (DLX6‐AS1) was upregulated in cancer tissues and cells lines compared with normal adjacent and cell line. Knock‐down DLX6‐AS1 by transfection with small interfering RNA (siRNA) suppressed cell proliferation, migration, and invasion of HCC cells. Cell cycle analysis showed that cells transfected with siRNA were arrested in G0/G1 phase. Then, we performed dual‐luciferase reporter assay and RNA immunoprecipitation (RIP) assay to show that DLX6‐AS1 could bind with miR‐424‐5p. And cotransfection inhibitor of miR‐424‐5p with siRNA of DLX6‐AS1 could abolish the inhibitory effect of siRNA of DLX6‐AS1 on cell proliferation, migration, and invasion. Moreover, we further demonstrated that the oncogene WEE1 G2 checkpoint kinase (WEE1) was the target of miR‐424‐5p and expression levels of WEE1 were positive correlation with that of DLX6‐AS1. Taken together, these results suggested that upregulated DLX6‐AS1 promoted cell proliferation, migration, and invasion of HCC through increasing expression of WEE1 via targeting miR‐424‐5p.
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Affiliation(s)
- Dan Li
- Department of Pathology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Xianbin Tang
- Department of Pathology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Man Li
- Department of Otolaryngology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Yi Zheng
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Wang M, Mao C, Ouyang L, Liu Y, Lai W, Liu N, Shi Y, Chen L, Xiao D, Yu F, Wang X, Zhou H, Cao Y, Liu S, Yan Q, Tao Y, Zhang B. Long noncoding RNA LINC00336 inhibits ferroptosis in lung cancer by functioning as a competing endogenous RNA. Cell Death Differ 2019; 26:2329-2343. [PMID: 30787392 PMCID: PMC6889193 DOI: 10.1038/s41418-019-0304-y] [Citation(s) in RCA: 349] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 01/26/2019] [Accepted: 02/05/2019] [Indexed: 12/15/2022] Open
Abstract
The regulatory loop between long noncoding RNAs (lncRNAs) and microRNAs has a dynamic role in transcriptional and translational regulation, and is involved in cancer. However, the regulatory circuitry between lncRNAs and microRNAs in tumorigenesis remains elusive. Here we demonstrate that a nuclear lncRNA LINC00336 is upregulated in lung cancer and functions as an oncogene by acting as a competing endogenous RNA (ceRNAs). LINC00336 bound RNA-binding protein ELAVL1 (ELAV-like RNA-binding protein 1) using nucleotides 1901–2107 of LINC00336 and the RRM interaction domain and key amino acids (aa) of ELAVL1 (aa 101–213), inhibiting ferroptosis. Moreover, ELAVL1 increased LINC00336 expression by stabilizing its posttranscriptional level, whereas LSH (lymphoid-specific helicase) increased ELAVL1 expression through the p53 signaling pathway, further supporting the hypothesis that LSH promotes LINC00336 expression. Interestingly, LINC00336 served as an endogenous sponge of microRNA 6852 (MIR6852) to regulate the expression of cystathionine-β-synthase (CBS), a surrogate marker of ferroptosis. Finally, we found that MIR6852 inhibited cell growth by promoting ferroptosis. These data show that the network of lncRNA and ceRNA has an important role in tumorigenesis and ferroptosis.
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Affiliation(s)
- Min Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,Department of Histology and Embryology, School of Basic Medicine, Central South University, Changsha, Hunan, 410013, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Chao Mao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Lianlian Ouyang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China.,Department of Oncology, Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yating Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Weiwei Lai
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Na Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Ying Shi
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Ling Chen
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Fenglei Yu
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Xiang Wang
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Hu Zhou
- Shanghai Institute of Material Medica, Chinese Academy of Sciences (CAS), 555 Zu Chongzhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Ya Cao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Shuang Liu
- Department of Oncology, Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Qin Yan
- Department of Pathology, Yale School of Medicine, New Haven, CT, 06520, USA
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China. .,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China. .,Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, 410011, China.
| | - Bin Zhang
- Department of Histology and Embryology, School of Basic Medicine, Central South University, Changsha, Hunan, 410013, China.
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344
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Zhu X, Niu X, Ge C. Inhibition of LINC00994 represses malignant behaviors of pancreatic cancer cells: interacting with miR-765-3p/RUNX2 axis. Cancer Biol Ther 2019; 20:799-811. [PMID: 30739523 DOI: 10.1080/15384047.2018.1564566] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pancreatic cancer exhibits one of the worst prognosis of all human cancers, and it is associated with gene dysregulation. Our microarray results first indicated long intergenic non-protein coding RNA 994 (LINC00994) as an upregulated long non-coding RNA (lncRNA) and miR-765-3p as a downregulated microRNA (miRNA) in pancreatic cancer tissues (Fold change ≥ 2 and P < 0.05; three paired samples). To investigate the role of LINC00994 in pancreatic carcinogenesis, a pair of short hairpin RNA (shRNA) was used to stably knock down the endogenous expression of LINC00994 in Panc-1 and AsPC-1 pancreatic cancer cells in vitro. We found that LINC00994 silencing inhibited the growth, migration and invasion, and promoted the G1 cell cycle arrest and apoptosis in Panc-1 and AsPC-1 cells. Furthermore, the expression of LINC00994 was negatively correlated with that of miR-765-3p in 10 pancreatic cancer specimens. Runt-related transcription factor 2 (RUNX2), a molecule that contributes to the aggressive behaviors of pancreatic cancer, was herein verified as a novel target for miR-765-3p. Like LINC00994, its expression was elevated in pancreatic cancers. Silencing of LINC00994 and RUNX2 reduced each other's expression in both Panc-1 and AsPC-1 cells. RUNX2 3'UTR and LINC00994 competed to bind miR-765-3p. Additionally, LINC00994-silenced cells regained their aggressive behaviors when miR-765-3p was antagonized, which was accompanied with RUNX2 re-expression. Collectively, our study reveals that LINC00994 contributes to the malignant behaviors of pancreatic cancer cells by preventing miR-765-3p from targeting RUNX2. LINC00994 can be considered as a novel therapeutic target against pancreatic cancer.
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Affiliation(s)
- Xuan Zhu
- a Department of Pancreatic and Biliary Surgery , The First Affiliated Hospital of China Medical University , Shenyang , Liaoning , China.,b Department of General Surgery, Anshan Hospital , The First Affiliated Hospital of China Medical University , Anshan , Liaoning , China
| | - Xing Niu
- c The Second Clinical Medical School , China Medical University , Shenyang , Liaoning , China
| | - Chunlin Ge
- a Department of Pancreatic and Biliary Surgery , The First Affiliated Hospital of China Medical University , Shenyang , Liaoning , China
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345
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Pan S, Liu Y, Liu Q, Xiao Y, Liu B, Ren X, Qi X, Zhou H, Zeng C, Jia L. HOTAIR/miR-326/FUT6 axis facilitates colorectal cancer progression through regulating fucosylation of CD44 via PI3K/AKT/mTOR pathway. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:750-760. [PMID: 30742932 DOI: 10.1016/j.bbamcr.2019.02.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/20/2018] [Accepted: 02/07/2019] [Indexed: 12/11/2022]
Abstract
Metastasis is the main cause of death in colorectal cancer (CRC) patients. Aberrant fucosylation, catalyzed by the specific fucosyltransferases (FUTs), is associated with malignant behaviors. Non-conding RNAs, including long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), emerge as key molecules in cancer malignancy. The aim of this study was to investigate HOTAIR/miR-326/FUT6 axis modified fucosylation on sLeX-CD44 (HCELL), which served as E-selectin ligand during CRC progression. Higher levels of HOTAIR and FUT6 were verified in CRC tissues and cell lines, with a positive correlation. HOTAIR was associated with poor clinical prognosis of CRC. Altered HOTAIR levels influenced proliferation, aggressiveness, apoptosis and tumorigenesis of CRC cells. HOTAIR directly harbored miR-326 binding sites and regulated FUT6 expression. Further results corroborated that HOTAIR/miR-326/FUT6 axis modified α1, 3-fucosylation of CD44, which mediated CRC malignancy. Co-modulation of HOTAIR, miR-326 and FUT6 impacted α1, 3-fucosylated CD44, which further triggered PI3K/AKT/mTOR pathway. HOTAIR also mediated CRC tumorigenesis and liver metastasis in vivo. Thus, our findings indicated that HOTAIR/miR-326/FUT6 axis mediated CRC procession through α1, 3-fucosylated CD44 via PI3K/AKT/mTOR pathway. This work rendered new therapeutic targets for CRC.
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Affiliation(s)
- Shimeng Pan
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Yanqiu Liu
- Institute (College) Integrative Medicine, Dalian Medical University, Dalian 116044, China
| | - Qianqian Liu
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Yang Xiao
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Bing Liu
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Xiang Ren
- College of Stomatology, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Xia Qi
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Huimin Zhou
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Changqian Zeng
- Medical College, Dalian University, Dalian 116622, Liaoning Province, China.
| | - Li Jia
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China.
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346
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Yuan H, Xu X, Feng X, Zhu E, Zhou J, Wang G, Tian L, Wang B. A novel long noncoding RNA PGC1β-OT1 regulates adipocyte and osteoblast differentiation through antagonizing miR-148a-3p. Cell Death Differ 2019; 26:2029-2045. [PMID: 30728459 DOI: 10.1038/s41418-019-0296-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 01/09/2019] [Accepted: 01/14/2019] [Indexed: 12/17/2022] Open
Abstract
Long noncoding RNAs (LncRNAs) have been implicated in the regulation of adipocyte and osteoblast differentiation. However, the functional contributions of LncRNAs to adipocyte or osteoblast differentiation remain largely unexplored. In the current study we have identified a novel LncRNA named peroxisome proliferator-activated receptor γ coactivator-1β-OT1 (PGC1β-OT1). The expression levels of PGC1β-OT1 were altered during adipogenic and osteogenic differentiation from progenitor cells. 5'- and 3'-rapid amplification of cDNA ends (RACE) revealed that PGC1β-OT1 is 1759 nt in full length. Overexpression of PGC1β-OT1 in progenitor cells inhibited adipogenic differentiation, whereas silencing of endogenous PGC1β-OT1 induced adipogenic differentiation. By contrast, overexpression of PGC1β-OT1 in progenitor cells stimulated, whereas silencing of PGC1β-OT1 inhibited osteogenic differentiation. In vivo experiment showed that silencing of endogenous PGC1β-OT1 in marrow stimulated fat accumulation and decreased osteoblast differentiation in mice. Mechanism investigations revealed that PGC1β-OT1 contains a functional miR-148a-3p binding site. Overexpression of the mutant PGC1β-OT1 with mutation at the binding site failed to regulate either adipogenic or osteogenic differentiation. In vivo crosslinking combined with affinity purification studies demonstrated that PGC1β-OT1 physically associated with miR-148a-3p through the functional miR-148a-3p binding site. Furthermore, PGC1β-OT1 affected the expression of endogenous miR-148a-3p and its target gene lysine-specific demethylase 6b (KDM6B). Supplementation of miR-148a-3p in progenitor cells blocked the inhibitory effect of PGC1β-OT1 on adipocyte formation. Moreover, overexpression of Kdm6b restored the osteoblast differentiation which was inhibited by silencing of endogenous PGC1β-OT. Our studies provide evidences that the novel LncRNA PGC1β-OT1 reciprocally regulates adipogenic and osteogenic differentiation through antagonizing miR-148a-3p and enhancing KDM6B effect.
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Affiliation(s)
- Hairui Yuan
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Metabolic Diseases Hospital & Institute of Endocrinology, Tianjin Medical University, 300070, Tianjin, China
| | - Xiaowei Xu
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Metabolic Diseases Hospital & Institute of Endocrinology, Tianjin Medical University, 300070, Tianjin, China
| | - Xue Feng
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Metabolic Diseases Hospital & Institute of Endocrinology, Tianjin Medical University, 300070, Tianjin, China
| | - Endong Zhu
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Metabolic Diseases Hospital & Institute of Endocrinology, Tianjin Medical University, 300070, Tianjin, China
| | - Jie Zhou
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Metabolic Diseases Hospital & Institute of Endocrinology, Tianjin Medical University, 300070, Tianjin, China
| | - Guannan Wang
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Metabolic Diseases Hospital & Institute of Endocrinology, Tianjin Medical University, 300070, Tianjin, China
| | - Lijie Tian
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Metabolic Diseases Hospital & Institute of Endocrinology, Tianjin Medical University, 300070, Tianjin, China
| | - Baoli Wang
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Metabolic Diseases Hospital & Institute of Endocrinology, Tianjin Medical University, 300070, Tianjin, China.
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347
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Cong Z, Diao Y, Xu Y, Li X, Jiang Z, Shao C, Ji S, Shen Y, De W, Qiang Y. Long non-coding RNA linc00665 promotes lung adenocarcinoma progression and functions as ceRNA to regulate AKR1B10-ERK signaling by sponging miR-98. Cell Death Dis 2019; 10:84. [PMID: 30692511 PMCID: PMC6349882 DOI: 10.1038/s41419-019-1361-3] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 01/03/2019] [Accepted: 01/08/2019] [Indexed: 12/23/2022]
Abstract
Long non-coding RNAs (lncRNAs) are frequently dysregulated in multiple malignancies, demonstrating their potential oncogenic or tumor-suppressive roles in tumorigenesis. Herein, we reported the identification of a novel lncRNA, linc00665 (ENST00000590622), which was markedly upregulated in lung adenocarcinoma (LUAD) tissues and might serve as an independent predictor for poor prognosis. Functional assays indicated that linc00665 reinforced LUAD cell proliferation and metastasis in vitro and in vivo. Mechanistically, transcription factor SP1 induced the transcription of linc00665 in LUAD cells, which exerted its oncogenic role by functioning as competing endogenous RNA (ceRNA) for miR-98 and subsequently activating downstream AKR1B10-ERK signaling pathway. Together, our study elucidates oncogenic roles of linc00665-miR98-AKR1B10 axis in LUAD tumorigenesis, which may serve as potential diagnostic biomarkers and therapeutic targets.
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Affiliation(s)
- Zhuangzhuang Cong
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, 210000, Nanjing, China
| | - Yifei Diao
- Department of Cardiothoracic Surgery, Jinling Hospital, Southeast University, 210000, Nanjing, China
| | - Yang Xu
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, 210000, Nanjing, China
- Department of Cardiothoracic Surgery, Jinling Hospital, Nanjing Medical University, 210000, Nanjing, China
| | - Xiaokun Li
- Department of Cardiothoracic Surgery, Jinling Hospital, Southeast University, 210000, Nanjing, China
| | - Zhisheng Jiang
- Department of Cardiothoracic Surgery, Jinling Hospital, Bengbu Medical College, 233030, Anhui, China
| | - Chenye Shao
- Department of Cardiothoracic Surgery, Jinling Hospital, Nanjing Medical University, 210000, Nanjing, China
| | - Saiguang Ji
- Department of Cardiothoracic Surgery, Jinling Hospital, Bengbu Medical College, 233030, Anhui, China
| | - Yi Shen
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, 210000, Nanjing, China.
- Department of Cardiothoracic Surgery, Jinling Hospital, Southeast University, 210000, Nanjing, China.
- Department of Cardiothoracic Surgery, Jinling Hospital, Nanjing Medical University, 210000, Nanjing, China.
- Department of Cardiothoracic Surgery, Jinling Hospital, Bengbu Medical College, 233030, Anhui, China.
| | - Wei De
- Department of Biochemistry and Molecular Biology, Nanjing Medical University, 210000, Nanjing, China
| | - Yong Qiang
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University, 210000, Nanjing, China.
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348
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Chen M, Fan L, Zhang SM, Li Y, Chen P, Peng X, Liu DB, Ma C, Zhang WJ, Zou ZW, Li PD. LINC01939 inhibits the metastasis of gastric cancer by acting as a molecular sponge of miR-17-5p to regulate EGR2 expression. Cell Death Dis 2019; 10:70. [PMID: 30683847 PMCID: PMC6347617 DOI: 10.1038/s41419-019-1344-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 12/17/2018] [Accepted: 01/04/2019] [Indexed: 12/12/2022]
Abstract
Accumulating evidence have suggested that long noncoding RNAs (lncRNAs) are known to regulate diverse tumorigenic processes. Recently, a novel lncRNA LINC01939 was underexpressed and emerged as a tumor suppressive lncRNA in gastric cancer (GC). In this study, we aimed to investigate the biological function and molecular mechanism of LINC01939 in GC. We found that LINC01939 expression was significantly downregulated in GC tissues and cell lines. Low expression of LINC01939 was correlated with tumor metastasis and shorter survival in GC patients. Functionally, LINC01939 overexpression remarkably inhibited the invasion and migration of GC cells in vitro and in vivo. Mechanistically, LINC01939 regulated the expression of early growth response 2 (EGR2) protein by competitively binding to miR-17-5p. Upregulation of miR-17-5p reversed GC metastasis and EMT process caused by LINC01939 by rescue analysis. Taken together, these results suggested that LINC01939 repressed GC invasion and migration by functioning as a ceRNA for miR-17-5p to regulate EGR2 expression. Our findings provided a novel prognostic marker and therapeutic target for GC patients.
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Affiliation(s)
- Mi Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Li Fan
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Si-Min Zhang
- Department of Emergency, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yong Li
- Department of Oncology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, China
| | - Peng Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xin Peng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Dong-Bo Liu
- Cancer Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Charlie Ma
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
| | - Wen-Jie Zhang
- Department of Pathology, Shihezi University School of Medicine, Shihezi, Xinjiang, 832002, China
| | - Zhen-Wei Zou
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Pin-Dong Li
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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349
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Liu H, Wu N, Zhang Z, Zhong X, Zhang H, Guo H, Nie Y, Liu Y. Long Non-coding RNA LINC00941 as a Potential Biomarker Promotes the Proliferation and Metastasis of Gastric Cancer. Front Genet 2019; 10:5. [PMID: 30723491 PMCID: PMC6349697 DOI: 10.3389/fgene.2019.00005] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 01/07/2019] [Indexed: 12/30/2022] Open
Abstract
Gastric cancer (GC) is a considerable global health burden. Accumulating evidence suggests that long non-coding RNAs (lncRNAs) are aberrantly expressed in many cancers and play important roles in GC. However, only a few lncRNAs have been functionally characterized. In this study, we identified that long intergenic non-protein coding RNA 941 (LINC00941) is a potential biomarker for diagnosis and prognosis from the cancer genome atlas (TCGA), and we found that the expression of LINC00941 is associated with tumor depth and distant metastasis in GC. Furthermore, functional enrichment analysis of LINC00941 co-expression network demonstrated that LINC00941 might be an essential regulator of tumor metastasis and cancer cell proliferation. To validate our findings, we utilized the loss-of-function analysis to reveal the biological function of LINC00941 in GC cells. Loss-of-function analysis revealed that silence of LINC00941 inhibits GC cells proliferation, migration, and invasion in vitro and modulates tumor growth in vivo. Our findings confirmed that LINC00941 plays an important oncogenic function in GC and may serve as a potential biomarker for diagnosis and prognosis of GC.
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Affiliation(s)
- Haiming Liu
- College of Computer Science and Technology, Jilin University, Changchun, China.,State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Nan Wu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China.,College of Life Sciences, Northwest University, Xi'an, China
| | - Zhe Zhang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - XiaoDan Zhong
- College of Computer Science and Technology, Jilin University, Changchun, China.,Department of Pediatric Oncology, The First Hospital of Jilin University, Changchun, China
| | - Hao Zhang
- College of Computer Science and Technology, Jilin University, Changchun, China
| | - Hao Guo
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Yuanning Liu
- College of Computer Science and Technology, Jilin University, Changchun, China
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350
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Barman P, Reddy D, Bhaumik SR. Mechanisms of Antisense Transcription Initiation with Implications in Gene Expression, Genomic Integrity and Disease Pathogenesis. Noncoding RNA 2019; 5:ncrna5010011. [PMID: 30669611 PMCID: PMC6468509 DOI: 10.3390/ncrna5010011] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/01/2019] [Accepted: 01/15/2019] [Indexed: 02/07/2023] Open
Abstract
Non-coding antisense transcripts arise from the strand opposite the sense strand. Over 70% of the human genome generates non-coding antisense transcripts while less than 2% of the genome codes for proteins. Antisense transcripts and/or the act of antisense transcription regulate gene expression and genome integrity by interfering with sense transcription and modulating histone modifications or DNA methylation. Hence, they have significant pathological and physiological relevance. Indeed, antisense transcripts were found to be associated with various diseases including cancer, diabetes, cardiac and neurodegenerative disorders, and, thus, have promising potentials for prognostic and diagnostic markers and therapeutic development. However, it is not clearly understood how antisense transcription is initiated and epigenetically regulated. Such knowledge would provide new insights into the regulation of antisense transcription, and hence disease pathogenesis with therapeutic development. The recent studies on antisense transcription initiation and its epigenetic regulation, which are limited, are discussed here. Furthermore, we concisely describe how antisense transcription/transcripts regulate gene expression and genome integrity with implications in disease pathogenesis and therapeutic development.
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Affiliation(s)
- Priyanka Barman
- Department of Biochemistry and Molecular Biology, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA.
| | - Divya Reddy
- Department of Biochemistry and Molecular Biology, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA.
| | - Sukesh R Bhaumik
- Department of Biochemistry and Molecular Biology, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA.
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