151
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Hulstaert E, Brochez L, Volders PJ, Vandesompele J, Mestdagh P. Long non-coding RNAs in cutaneous melanoma: clinical perspectives. Oncotarget 2017; 8:43470-43480. [PMID: 28415644 PMCID: PMC5522162 DOI: 10.18632/oncotarget.16478] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 03/13/2017] [Indexed: 02/06/2023] Open
Abstract
Metastatic melanoma of the skin has a high mortality despite the recent introduction of targeted therapy and immunotherapy. Long non-coding RNAs (lncRNAs) are defined as transcripts of more than 200 nucleotides in length that lack protein-coding potential. There is growing evidence that lncRNAs play an important role in gene regulation, including oncogenesis. We present 13 lncRNA genes involved in the pathogenesis of cutaneous melanoma through a variety of pathways and molecular interactions. Some of these lncRNAs are possible biomarkers or therapeutic targets for malignant melanoma.
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Affiliation(s)
- Eva Hulstaert
- Department of Dermatology, Ghent University Hospital, Ghent, Belgium
| | - Lieve Brochez
- Department of Dermatology, Ghent University Hospital, Ghent, Belgium
| | - Pieter-Jan Volders
- Center for Medical Genetics, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent University, Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Ghent, Belgium
| | - Jo Vandesompele
- Center for Medical Genetics, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent University, Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Ghent, Belgium
| | - Pieter Mestdagh
- Center for Medical Genetics, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent University, Ghent, Belgium
- Bioinformatics Institute Ghent, Ghent University, Ghent, Belgium
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152
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Wang Z, Wang X, Zhang D, Yu Y, Cai L, Zhang C. Long non-coding RNA urothelial carcinoma–associated 1 as a tumor biomarker for the diagnosis of urinary bladder cancer. Tumour Biol 2017. [PMID: 28639914 DOI: 10.1177/1010428317709990] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Zichun Wang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoxiong Wang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Daming Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Department of Pharmacology, Harbin Medical University, Harbin, China
| | - Yongchun Yu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Licheng Cai
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Cheng Zhang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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153
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Mo XB, Wu LF, Zhu XW, Xia W, Wang L, He P, Bing PF, Lu X, Zhang YH, Deng FY, Lei SF. Identification and evaluation of lncRNA and mRNA integrative modules in human peripheral blood mononuclear cells. Epigenomics 2017. [PMID: 28621149 DOI: 10.2217/epi-2016-0178] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM To identify sets of functionally related long noncoding RNAs (lncRNAs) and mRNAs and to evaluate the importance of lncRNAs in an lncRNA-mRNA network. METHODS We carried out weighted gene co-expression network analysis and enrichment analyses to identify functional modules of co-expressed lncRNAs and mRNAs in human peripheral blood mononuclear cells of 43 females. RESULTS We identified seven modules and found hub lncRNAs in each module. Four of the seven modules had significant gene ontology enrichments. Some of the hub lncRNAs (e.g., SSX8, UCA1, HOXA-AS2, STARD4-AS1 and PCBP1-AS1) have known functions related with diseases such as cancers. CONCLUSION We identified seven biologically important lncRNA and mRNA integrative modules in females and showed that lncRNAs might play important roles in lncRNA-mRNA co-expression modules.
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Affiliation(s)
- Xing-Bo Mo
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Long-Fei Wu
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Xiao-Wei Zhu
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Wei Xia
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Lan Wang
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Pei He
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Peng-Fei Bing
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Xin Lu
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Yong-Hong Zhang
- Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Fei-Yan Deng
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Shu-Feng Lei
- Center for Genetic Epidemiology & Genomics, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, Jiangsu 215123, PR China
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154
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Wang YH, Wang F, Zhang L, Lu JC. Long non-coding RNA UCA1 can predict tumor lymph node metastasis. Tumour Biol 2017; 39:1010428317706208. [PMID: 28488546 DOI: 10.1177/1010428317706208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Numerous studies suggested that long non-coding RNA UCA1 was highly expressed and played critical roles in the development and progression of various cancerous tissues and cells. However, little is known about the association between UCA1 and tumor lymph node metastasis. In our study, a systematic review was conducted to evaluate the association between UCA1 expression and tumor lymph node metastasis and explore whether UCA1 can be a potential molecular marker for predicting the multiple tumor lymph node metastasis. The meta-analysis result showed that the number of lymph node metastasis in different tumorous types of UCA1 high-expression group was significantly higher compared with UCA1 low-expression group (pooled odds ratio = 2.13, 95% confidence interval: 1.60-2.84, p < 0.05). To verify whether the above result was still valid in specific tumor type, we conducted a meta-analysis including four articles on colorectal cancer (pooled odds ratio = 2.07, 95% confidence interval: 1.28-3.34, p < 0.05). Based on the existing results, it can be explained that the long non-coding RNA UCA1 was significantly associated with lymph node metastasis and both the results revealed that compared with UCA1 low-expression group, the lymph node metastasis rate of UCA1 high-expression group was statistically significantly elevated. Therefore, long non-coding RNA UCA1 has the potential of being a biological marker for predicting lymph node metastasis.
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Affiliation(s)
- Yuan-Hang Wang
- 1 GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
| | - Fang Wang
- 1 GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
| | - Lan Zhang
- 1 GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, China
| | - Jia-Chun Lu
- 2 The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou, China
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155
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Abstract
The pivotal role of the long non-coding RNA (lncRNA) urothelial carcinoma associated 1 (UCA1) in anti-cancer drug resistance has been confirmed in many cancers. Overexpression of lncRNA UCA1 correlates with resistance to chemotherapeutics such as cisplatin, gemcitabine, 5-FU, tamoxifen, imatinib and EGFR-TKIs, whereas lncRNA UCA1 knockdown restores drug sensitivity. These studies highlight the potential of lncRNA UCA1 as a diagnostic and prognostic biomarker, and a therapeutic target in malignant tumors. In this review, we address the role of lncRNA UCA1 in anti-cancer drug resistance and discuss its potential in future clinical applications.
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156
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Terracciano D, Ferro M, Terreri S, Lucarelli G, D'Elia C, Musi G, de Cobelli O, Mirone V, Cimmino A. Urinary long noncoding RNAs in nonmuscle-invasive bladder cancer: new architects in cancer prognostic biomarkers. Transl Res 2017; 184:108-117. [PMID: 28438520 DOI: 10.1016/j.trsl.2017.03.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 03/22/2017] [Accepted: 03/28/2017] [Indexed: 12/14/2022]
Abstract
Several reports over the last 10 years provided evidence that long noncoding RNAs (lncRNAs) are often altered in bladder cancers. lncRNAs are longer than 200 nucleotides and function as important regulators of gene expression, interacting with the major pathways of cell growth, proliferation, differentiation, and survival. A large number of lncRNAs has oncogenic function and is more expressed in tumor compared with normal tissues. Their overexpression may be associated with tumor formation, progression, and metastasis in a variety of tumors including bladder cancer. Although lncRNAs have been shown to have critical regulatory roles in cancer biology, the biological functions and prognostic values in nonmuscle-invasive bladder cancer remain largely unknown. Nevertheless, a growing body of evidence suggests that several lncRNAs expression profiles in bladder malignancies are associated with poor prognosis, and they can be detected in biological fluids, such as urines. Here, we review current progress in the biology and the implication of lncRNAs associated with bladder cancer, and we discuss their potential use as diagnosis and prognosis biomarkers in bladder malignancies with a focus on their role in high-risk nonmuscle-invasive tumors.
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Affiliation(s)
- Daniela Terracciano
- Department of Translational Medical Sciences, University "Federico II", Naples, Italy.
| | - Matteo Ferro
- Division of Urology, European Institute of Oncology, Milan, Italy.
| | - Sara Terreri
- Institute of Genetics and Biophysics "A. Buzzati Traverso", National Research Council (CNR), Naples, Italy
| | - Giuseppe Lucarelli
- Department of Emergency and Organ Transplantation-Urology, Andrology and Kidney Transplantation Unit, University of Bari, Bari, Italy
| | - Carolina D'Elia
- Urology Department, Central Hospital of Bolzano, Bolzano, Italy
| | - Gennaro Musi
- Division of Urology, European Institute of Oncology, Milan, Italy
| | | | - Vincenzo Mirone
- Urology Department, University of Naples Federico II, Naples, Italy
| | - Amelia Cimmino
- Institute of Genetics and Biophysics "A. Buzzati Traverso", National Research Council (CNR), Naples, Italy.
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157
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Yu X, Zou T, Zou L, Jin J, Xiao F, Yang J. Plasma Long Noncoding RNA Urothelial Carcinoma Associated 1 Predicts Poor Prognosis in Chronic Heart Failure Patients. Med Sci Monit 2017; 23:2226-2231. [PMID: 28490726 PMCID: PMC5436527 DOI: 10.12659/msm.904113] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background Chronic heart failure (CHF) is a leading cause of death worldwide. A long noncoding RNA (lncRNA) named urothelial carcinoma associated 1 (UCA1) is important in multiple diseases. However, the role of UCA1 in CHF is still unknown. Our study investigated whether UCA1 could be applied as an ideal marker to diagnose and evaluate prognosis in CHF. Material/Methods Total plasma RNA was extracted from 67 CHF patients and 67 controls. Quantitative real-time polymerase chain reaction was used to determine the plasma level of UCA1. Correlations between UCA1 and clinical parameters were analyzed by Pearson correlation. Receiver operating characteristic curves (ROC) were obtained to analyze the predictive power of UCA1 and BNP for CHF. Kaplan-Meier survival curves were used to evaluate prognosis of CHF within 1 year. Results There was no significant difference in elementary data between CHF and controls. Plasma UCA1 was much higher in CHF patients compared with controls. Plasma UCA1 was positively and negatively correlated with brain natriuretic peptide (BNP) and left ventricle ejection fraction (LVEF), respectively. Plasma UCA1 diagnosed CHF with a diagnostic power of 0.89 and a sensitivity and specificity of 100% [95% CI (0.9464–1)] and 76.12% [95%CI (0.6414–0.8569)] (P<0.05), respectively. CHF patients with higher plasma UCA1 had a lower survival rate than those with a lower level, and survival rate predicted by UCA1 had a similar tendency with BNP. However, there was no significant difference between these 2 markers in predicting the prognosis of CHF (P>0.05). Conclusions Plasma UCA1 might be an excellent indicator to diagnose CHF and it might predict poor outcomes of CHF.
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Affiliation(s)
- Xuejing Yu
- Department of Cardiology, Peking University Fifth School of Clinical Medicine, Beijing, China (mainland)
| | - Tong Zou
- Department of Cardiology, Beijing Hospital, Beijing, China (mainland)
| | - Lihui Zou
- The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China (mainland)
| | - Junhua Jin
- The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China (mainland)
| | - Fei Xiao
- The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China (mainland)
| | - Jiefu Yang
- Department of Cardiology, Peking University Fifth School of Clinical Medicine, Beijing, China (mainland)
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158
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Wang Y, Gao W, Xu J, Zhu Y, Liu L. The long noncoding RNA urothelial carcinoma-associated 1 overexpression as a poor prognostic biomarker in clear cell renal cell carcinoma. Tumour Biol 2017; 39:1010428317698377. [PMID: 28459210 DOI: 10.1177/1010428317698377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Long noncoding RNA urothelial carcinoma-associated 1 has previously played important roles in cancer. However, its role is still unknown in clear cell renal cell carcinoma. We utilized the most recent molecular and clinical data of clear cell renal cell carcinoma from The Cancer Genome Atlas project, and the relationship between urothelial carcinoma-associated 1 expression and the clinicopathological features was analyzed. Our results indicated that urothelial carcinoma-associated 1 overexpression was associated with male ( p = 0.003), wild-type PBRM1 ( p = 0.021), and BAP1 mutation ( p = 0.022) in clear cell renal cell carcinoma, although lower expression was found in tumors compared with normal controls, validated in tumor tissues from The Cancer Genome Atlas and 21 clear cell renal cell carcinoma patients at our hospital. Moreover, urothelial carcinoma-associated 1 overexpression indicated poor prognosis independently (Hazard Ratio [HR]: 1.92, p = 0.000) in clear cell renal cell carcinoma; it might be a potential detrimental gene considered as a predictive biomarker involved in clear cell renal cell carcinoma.
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Affiliation(s)
- Yang Wang
- Department of Oncology, Nanjing Medical University, Nanjing, China
| | - Wen Gao
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Jiali Xu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Yizhi Zhu
- Department of Oncology, Nanjing Medical University, Nanjing, China
| | - Lingxiang Liu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
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159
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Qian Y, Liu D, Cao S, Tao Y, Wei D, Li W, Li G, Pan X, Lei D. Upregulation of the long noncoding RNA UCA1 affects the proliferation, invasion, and survival of hypopharyngeal carcinoma. Mol Cancer 2017; 16:68. [PMID: 28327194 PMCID: PMC5361721 DOI: 10.1186/s12943-017-0635-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 03/08/2017] [Indexed: 11/10/2022] Open
Abstract
Background Several long noncoding RNAs (lncRNAs) are involved in oncogenesis. Methods and Results Our microarray analysis showed that numerous lncRNAs are dysregulated in hypopharyngeal squamous cell carcinoma (HSCC) tumor tissues as compared with normal tissues. Among those lncRNAs, urothelial carcinoma-associated 1 (UCA1) has been found to have an oncogenic role in HSCC. We confirmed the upregulation of UCA1 in HSCC by assessing its expression levels in a cohort of 53 patient tumors and paired non-tumor samples. In addition, we found that high UCA1 expression was significantly associated with advanced T category, late clinical stage, greater lymphatic invasion, and worse prognosis. Furthermore, in vitro experiments demonstrated that UCA1 functioned as an oncogene by promoting the proliferation and invasion and preventing the apoptosis of HSCC cells. Conclusions Taken together, our findings for the first time identify the role of UCA1 as a tumor promoter and a pro-metastatic factor in HSCC, demonstrating that UCA1 is a potential prognostic biomarker and therapeutic target in HSCC.
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Affiliation(s)
- Ye Qian
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University; Key Laboratory of Otolaryngology, NHFPC (Shandong University), 107 West Wenhua Road, Jinan, Shandong, 250012, People's Republic of China
| | - Dayu Liu
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University; Key Laboratory of Otolaryngology, NHFPC (Shandong University), 107 West Wenhua Road, Jinan, Shandong, 250012, People's Republic of China
| | - Shengda Cao
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University; Key Laboratory of Otolaryngology, NHFPC (Shandong University), 107 West Wenhua Road, Jinan, Shandong, 250012, People's Republic of China
| | - Ye Tao
- Department of Otolaryngology & Head and Neck Surgery, 2nd Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Dongmin Wei
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University; Key Laboratory of Otolaryngology, NHFPC (Shandong University), 107 West Wenhua Road, Jinan, Shandong, 250012, People's Republic of China
| | - Wenming Li
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University; Key Laboratory of Otolaryngology, NHFPC (Shandong University), 107 West Wenhua Road, Jinan, Shandong, 250012, People's Republic of China
| | - Guojun Li
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.,Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Xinliang Pan
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University; Key Laboratory of Otolaryngology, NHFPC (Shandong University), 107 West Wenhua Road, Jinan, Shandong, 250012, People's Republic of China.
| | - Dapeng Lei
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University; Key Laboratory of Otolaryngology, NHFPC (Shandong University), 107 West Wenhua Road, Jinan, Shandong, 250012, People's Republic of China.
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160
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Zhang X, Gao F, Zhou L, Wang H, Shi G, Tan X. UCA1 Regulates the Growth and Metastasis of Pancreatic Cancer by Sponging miR-135a. Oncol Res 2017; 25:1529-1541. [PMID: 28315290 PMCID: PMC7841060 DOI: 10.3727/096504017x14888987683152] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Pancreatic cancer (PC) is a devastating malignant disease with a poor prognosis. This study aimed to investigate the role of urothelial carcinoma associated 1 (UCA1) in the progression of PC. Our results revealed that long noncoding RNA (lncRNA) UCA1 was overexpressed in PC tissues compared with adjacent histologically normal tissues. A downregulated level of UCA1 was also detected in five human PC cell lines (SW1990, BxPC-3, MiaPaCa-2, PANC-1, and CAPAN-1) compared with normal pancreatic duct epithelial HPDE cells. The proliferation of PC cells was inhibited after UCA1 was suppressed by a lentiviral vector. The cell apoptosis rate was largely promoted by downregulating UCA1. Further research revealed that microRNA (miRNA)-135a is a direct target of UCA1. The expression of miR-135a was decreased in PC tissues and cell lines compared with control groups. In addition, the decreased level of miR-135a was elevated by adding miR-135a mimic in SW1990 cells transfected with lncRNA UCA1. Similarly, an upregulated level of miR-135a was downregulated by adding miR-135a inhibitor in SW1990 cells transfected with UCA1 siRNA. Luciferase activity assay further confirmed the targeting relationship between UCA1 and miR-135a. Moreover, miR-135a reversed the effect of UCA1 on cell apoptosis rate and cell viability in SW1990 cells. The migration and invasion capacities of PC cells were suppressed by UCA1. siRNA was then enhanced by the miR-135a inhibitor. In vivo, UCA1 siRNA effectively suppressed tumor growth and the expression of migration markers. Taken together, our research revealed that UCA1 works as an oncogene by targeting miR-135a. The UCA1–miR-135a pathway regulated the growth and metastasis of PC, providing new insight in the treatment of PC.
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161
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Zhen S, Hua L, Liu YH, Sun XM, Jiang MM, Chen W, Zhao L, Li X. Inhibition of long non-coding RNA UCA1 by CRISPR/Cas9 attenuated malignant phenotypes of bladder cancer. Oncotarget 2017; 8:9634-9646. [PMID: 28038452 PMCID: PMC5354759 DOI: 10.18632/oncotarget.14176] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 12/12/2016] [Indexed: 01/17/2023] Open
Abstract
CRISPR/Cas9 is a novel and effective genome editing technique, but its application is not widely expanded to manipulate long non-coding RNA (lncRNA) expression. The lncRNA urothelial carcinoma-associated 1 (UCA1) is upregulated in bladder cancer and promotes the progression of bladder cancer. Here, we design gRNAs specific to UCA1 and construct CRISPR/Cas9 systems targeting UCA1. Single CRISPR/Cas9-UCA1 can effectively inhibit UCA1 expression when transfected into 5637 and T24 bladder cancer cells, while the combined transfection of the two most effective CRISPR/Cas9-UCA1s can generate more satisfied inhibitory effect. CRISPR/Cas9-UCA1s attenuate UCA1 expression via targeted genome-specific DNA cleavage, resulting in the significant inhibition of cell proliferation, migration and invasion in vitro and in vivo. The mechanisms associated with the inhibitory effect of CRISPR/Cas9-UCA1 on malignant phenotypes of bladder cancer are attributed to the induction of cell cycle arrest at G1 phase, a substantial increase of apoptosis, and an enhanced activity of MMPs. Additionally, urinary UCA1 can be used as a non-invasive diagnostic marker for bladder cancer as revealed by a meta-analysis. Collectively, our data suggest that CRISPR/Cas9 technique can be used to down-modulate lncRNA expression, and urinary UCA1 may be used as a non-invasive marker for diagnosis of bladder cancer.
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MESH Headings
- Animals
- Apoptosis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/urine
- CRISPR-Associated Proteins/genetics
- CRISPR-Associated Proteins/metabolism
- CRISPR-Cas Systems
- Cell Line, Tumor
- Cell Movement
- Cell Proliferation
- Clustered Regularly Interspaced Short Palindromic Repeats
- Down-Regulation
- G1 Phase Cell Cycle Checkpoints
- Gene Expression Regulation, Neoplastic
- Gene Knockdown Techniques
- Gene Targeting/methods
- Humans
- Male
- Matrix Metalloproteinases/metabolism
- Mice, Inbred BALB C
- Mice, Nude
- Neoplasm Invasiveness
- Phenotype
- RNA, Guide, CRISPR-Cas Systems/genetics
- RNA, Guide, CRISPR-Cas Systems/metabolism
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/urine
- Time Factors
- Transfection
- Tumor Burden
- Urinary Bladder Neoplasms/genetics
- Urinary Bladder Neoplasms/metabolism
- Urinary Bladder Neoplasms/pathology
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Affiliation(s)
- Shuai Zhen
- Center for Translational Medicine, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, P.R. China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, P.R. China
| | - Ling Hua
- Department of Veterinary Medicine, Rongchang Campus of Southwest University, Chongqing 402460, P.R. China
| | - Yun-Hui Liu
- Department of Pharmacology and Toxicology, Beijing Institute of Radiation Medicine, Beijing 100850, P.R. China
| | - Xiao-Min Sun
- Center for Laboratory Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, P.R. China
| | - Meng-Meng Jiang
- State Key Laboratory of Cancer Biology, The Fourth Military Medical University, Xi’an 710032, Shaanxi, China
| | - Wei Chen
- Center for Laboratory Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, P.R. China
| | - Le Zhao
- Center for Translational Medicine, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, P.R. China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, P.R. China
| | - Xu Li
- Center for Translational Medicine, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an 710061, P.R. China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, P.R. China
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162
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Colorectal Carcinoma: A General Overview and Future Perspectives in Colorectal Cancer. Int J Mol Sci 2017; 18:ijms18010197. [PMID: 28106826 PMCID: PMC5297828 DOI: 10.3390/ijms18010197] [Citation(s) in RCA: 755] [Impact Index Per Article: 107.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/06/2017] [Accepted: 01/11/2017] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer-related death. Most cases of CRC are detected in Western countries, with its incidence increasing year by year. The probability of suffering from colorectal cancer is about 4%–5% and the risk for developing CRC is associated with personal features or habits such as age, chronic disease history and lifestyle. In this context, the gut microbiota has a relevant role, and dysbiosis situations can induce colonic carcinogenesis through a chronic inflammation mechanism. Some of the bacteria responsible for this multiphase process include Fusobacterium spp, Bacteroides fragilis and enteropathogenic Escherichia coli. CRC is caused by mutations that target oncogenes, tumour suppressor genes and genes related to DNA repair mechanisms. Depending on the origin of the mutation, colorectal carcinomas can be classified as sporadic (70%); inherited (5%) and familial (25%). The pathogenic mechanisms leading to this situation can be included in three types, namely chromosomal instability (CIN), microsatellite instability (MSI) and CpG island methylator phenotype (CIMP). Within these types of CRC, common mutations, chromosomal changes and translocations have been reported to affect important pathways (WNT, MAPK/PI3K, TGF-β, TP53), and mutations; in particular, genes such as c-MYC, KRAS, BRAF, PIK3CA, PTEN, SMAD2 and SMAD4 can be used as predictive markers for patient outcome. In addition to gene mutations, alterations in ncRNAs, such as lncRNA or miRNA, can also contribute to different steps of the carcinogenesis process and have a predictive value when used as biomarkers. In consequence, different panels of genes and mRNA are being developed to improve prognosis and treatment selection. The choice of first-line treatment in CRC follows a multimodal approach based on tumour-related characteristics and usually comprises surgical resection followed by chemotherapy combined with monoclonal antibodies or proteins against vascular endothelial growth factor (VEGF) and epidermal growth receptor (EGFR). Besides traditional chemotherapy, alternative therapies (such as agarose tumour macrobeads, anti-inflammatory drugs, probiotics, and gold-based drugs) are currently being studied to increase treatment effectiveness and reduce side effects.
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Lee JJ, Kim M, Kim HP. Epigenetic regulation of long noncoding RNA UCA1 by SATB1 in breast cancer. BMB Rep 2017; 49:578-583. [PMID: 27697109 PMCID: PMC5227301 DOI: 10.5483/bmbrep.2016.49.10.156] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Indexed: 01/31/2023] Open
Abstract
Special AT-rich sequence binding protein 1 (SATB1) is a nuclear matrix-associated DNA-binding protein that functions as a chromatin organizer. SATB1 is highly expressed in aggressive breast cancer cells and promotes growth and metastasis by reprograming gene expression. Through genomewide cross-examination of gene expression and histone methylation, we identified SATB1 target genes for which expression is associated with altered epigenetic marks. Among the identified genes, long noncoding RNA urothelial carcinoma-associated 1 (UCA1) was upregulated by SATB1 depletion. Upregulation of UCA1 coincided with increased H3K4 trimethylation (H3K4me3) levels and decreased H3K27 trimethylation (H3K27me3) levels. Our study showed that SATB1 binds to the upstream region of UCA1 in vivo, and that its promoter activity increases with SATB1 depletion. Furthermore, simultaneous depletion of SATB1 and UCA1 potentiated suppression of tumor growth and cell survival. Thus, SATB1 repressed the expression of oncogenic UCA1, suppressing growth and survival of breast cancer cells. [BMB Reports 2016; 49(10): 578-583].
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Affiliation(s)
- Jong-Joo Lee
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Mikyoung Kim
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Hyoung-Pyo Kim
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Yonsei University College of Medicine; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
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164
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Zhao W, Sun C, Cui Z. A long noncoding RNA UCA1 promotes proliferation and predicts poor prognosis in glioma. Clin Transl Oncol 2017; 19:735-741. [PMID: 28105536 DOI: 10.1007/s12094-016-1597-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 12/10/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Acting as a proto-oncogene, long noncoding RNAs (lncRNAs) urothelial carcinoembryonic antigen 1 (UCA1) plays a key role in the occurrence and development of several human tumors. However, the expression and biological functions of UCA1 in glioma are less known. This study discussed the expression of UCA1 in glioma and its effect on the proliferation and cell cycle of glioma cells. METHOD LncRNA UCA1 expressions in 64 glioma samples (Grade I-II in 22 cases and Grade III-IV in 42 cases, according to WHO criteria) and 10 normal brain samples were detected using real-time fluorescence quantitative PCR. On this basis, the correlations of UCA1 to clinicopathological characteristics and prognosis of glioma were assessed. Then, using qPCR, the lncRNA UCA1 expressions in glioma cell lines and astrocytes were detected. UCA1-overexpressing glioma cell lines U87 and U251 were further detected after siRNA transfection of these two cell lines, and the impact on cell proliferation and cell cycle was assessed with CCK-8 (cell counting kit-8) assay and flow cytometry method (FCM), respectively. The expression of cyclin D1, a cell cycle-related protein, was detected using Western Blot. RESULT LncRNA UCA1 expression in the glioma samples was obviously higher as compared with the normal brain samples (P < 0.001), and the expression was correlated significantly with grading of the tumors (P < 0.05). However, lncRNA UCA1 expression was not correlated with age, gender, tumor size and KPS score (P > 0.05). After interference of UCA1 expression by siRNA transfection, the proliferation of both U251 and SHG-44 cells was inhibited (P < 0.05), with more cells arrested in G0/G1 (P < 0.05). Moreover, cyclin D1 expression was also downregulated considerably. CONCLUSION LncRNA UCA1 can promote the proliferation and cell cycle progression of glioma cells by upregulating cyclin D1 transcription. So UCA1 may serve as an independent prognostic indicator and a novel therapeutic target for glioma.
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Affiliation(s)
- W Zhao
- Department of Neurosurgery, The Affiliated 2ed Hospital of Nantong University, 6 Baby Lane North Road, Nantong, 226001, Jiangsu, China
| | - C Sun
- Department of Neurosurgery, Zhejiang Cancer Hospital, 38 Guangji Road, Hangzhou, 310022, Zhejiang, China.
| | - Z Cui
- Department of Neurosurgery, The Affiliated 2ed Hospital of Nantong University, 6 Baby Lane North Road, Nantong, 226001, Jiangsu, China.
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165
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Chen QN, Wei CC, Wang ZX, Sun M. Long non-coding RNAs in anti-cancer drug resistance. Oncotarget 2017; 8:1925-1936. [PMID: 27713133 PMCID: PMC5352108 DOI: 10.18632/oncotarget.12461] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Accepted: 09/16/2016] [Indexed: 12/20/2022] Open
Abstract
Chemotherapy is one of the basic treatments for cancers; however, drug resistance is mainly responsible for the failure of clinical treatment. The mechanism of drug resistance is complicated because of interaction among various factors including drug efflux, DNA damage repair, apoptosis and targets mutation. Long non-coding RNAs (lncRNAs) have been a focus of research in the field of bioscience, and the latest studies have revealed that lncRNAs play essential roles in drug resistance in breast cancer, gastric cancer and lung cancer, et al. Dysregulation of multiple targets and pathways by lncRNAs results in the occurrence of chemoresistance. In this review, we will discuss the mechanisms underlying lncRNA-mediated resistance to chemotherapy and the therapeutic potential of lncRNAs in future cancer treatment.
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Affiliation(s)
- Qin-nan Chen
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Chen-chen Wei
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Zhao-xia Wang
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Ming Sun
- Department of Bioinformatics and Computational Biology, UT MD Anderson Cancer Center, Houston, Texas, United States of America
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Zou H, Shao CX, Zhou QY, Zhu GQ, Shi KQ, Braddock M, Huang DS, Zheng MH. The role of lncRNAs in hepatocellular carcinoma: opportunities as novel targets for pharmacological intervention. Expert Rev Gastroenterol Hepatol 2016; 10:331-40. [PMID: 26558504 DOI: 10.1586/17474124.2016.1116382] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Long non-coding RNA (lncRNA) is commonly defined as an RNA with a length of greater than 200 nucleotides, frequently up to 100 kb. Numerous studies have shown that dysregulation of lncRNAs may directly relate to a number of human diseases, particularly in oncology where lncRNAs appear to play an important role. LncRNAs may also play a potentially novel and critical role in the development and progression of hepatocellular carcinoma (HCC). This article discusses lncRNAs as a new possibility for diagnostic and therapeutic approaches for HCC. The authors introduce the relationship between some lncRNAs and HCC, including carcinogenesis, development, metastasis and prognosis. In addition, the authors suggest that the discovery of lncRNAs may encourage the discovery and development of new therapeutic modalities for HCC and that their regulation may be a promising potential treatment for HCC. Clinical studies are required to determine the therapeutic effect of regulating lncRNA in humans with HCC.
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Affiliation(s)
- Hai Zou
- a Department of Emergency , Zhejiang Provincial People's Hospital , Hangzhou , China
| | - Chu-Xiao Shao
- b Department of Hepatobiliary Surgery , Lishui Hospital Affiliated to Zhejiang University , Lishui , China
| | - Qin-Yun Zhou
- b Department of Hepatobiliary Surgery , Lishui Hospital Affiliated to Zhejiang University , Lishui , China
| | - Gui-Qi Zhu
- c Department of Infection and Liver Diseases, Liver Research Center , The First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China.,d School of the First Clinical Medical Sciences , Wenzhou Medical University , Wenzhou , China
| | - Ke-Qing Shi
- c Department of Infection and Liver Diseases, Liver Research Center , The First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China.,e Institute of Hepatology , Wenzhou Medical University , Wenzhou , China
| | - Martin Braddock
- f Global Medicines Development , AstraZeneca R&D , Alderley Park , UK
| | - Dong-Sheng Huang
- g Department of Hepatobiliary Surgery , Zhejiang Provincial People's Hospital , Hangzhou , China
| | - Ming-Hua Zheng
- c Department of Infection and Liver Diseases, Liver Research Center , The First Affiliated Hospital of Wenzhou Medical University , Wenzhou , China.,e Institute of Hepatology , Wenzhou Medical University , Wenzhou , China
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Clinical Significance of UCA1 to Predict Metastasis and Poor Prognosis of Digestive System Malignancies: A Meta-Analysis. Gastroenterol Res Pract 2016; 2016:3729830. [PMID: 28074092 PMCID: PMC5198090 DOI: 10.1155/2016/3729830] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 10/24/2016] [Indexed: 12/21/2022] Open
Abstract
Purpose. Urothelial carcinoma-associated 1 (UCA1) has been reported to be overexpressed and correlated with progression in various cancers. However, the association between UCA1 expression and some clinicopathological features of digestive system malignancies, such as metastasis and survival, remains inconclusive. Therefore, a meta-analysis was performed to investigate the clinical significance of UCA1 in digestive system malignancies. Methods. Relevant literatures were searched in PubMed, Web of Science, Cochrane Library, and Embase databases updated to May 2016. Results. A total of 1089 patients from 10 studies were included in this meta-analysis. Meta-analysis results showed that digestive system malignancy patients with UCA1 overexpression were significantly more susceptible to developing lymph node metastasis (LNM) (OR = 1.85, 95% CI: 1.28–2.67) and distant metastasis (DM) (OR = 3.14, 95% CI: 1.77–5.58) and suffer from poor overall survival (OS) (HR = 2.31, 95% CI: 1.89–2.82, univariate analysis; HR = 2.24, 95% CI: 1.69–2.98, multivariate analysis) and poor disease-free survival (DFS) (HR = 2.65, 95% CI: 1.59–4.43, univariate analysis; HR = 2.50, 95% CI: 1.62–3.86, multivariate analysis). Conclusion. UCA1 overexpression was correlated with LNM, DM, poor OS, and poor DFS. UCA1 may serve as an indicator for metastasis and poor prognosis in digestive system malignancies.
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Babaian A, Mager DL. Endogenous retroviral promoter exaptation in human cancer. Mob DNA 2016; 7:24. [PMID: 27980689 PMCID: PMC5134097 DOI: 10.1186/s13100-016-0080-x] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/11/2016] [Indexed: 12/13/2022] Open
Abstract
Cancer arises from a series of genetic and epigenetic changes, which result in abnormal expression or mutational activation of oncogenes, as well as suppression/inactivation of tumor suppressor genes. Aberrant expression of coding genes or long non-coding RNAs (lncRNAs) with oncogenic properties can be caused by translocations, gene amplifications, point mutations or other less characterized mechanisms. One such mechanism is the inappropriate usage of normally dormant, tissue-restricted or cryptic enhancers or promoters that serve to drive oncogenic gene expression. Dispersed across the human genome, endogenous retroviruses (ERVs) provide an enormous reservoir of autonomous gene regulatory modules, some of which have been co-opted by the host during evolution to play important roles in normal regulation of genes and gene networks. This review focuses on the “dark side” of such ERV regulatory capacity. Specifically, we discuss a growing number of examples of normally dormant or epigenetically repressed ERVs that have been harnessed to drive oncogenes in human cancer, a process we term onco-exaptation, and we propose potential mechanisms that may underlie this phenomenon.
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Affiliation(s)
- Artem Babaian
- Terry Fox Laboratory, British Columbia Cancer Agency, 675 West 10th Avenue, Vancouver, BC V5Z1L3 Canada ; Department of Medical Genetics, University of British Columbia, Vancouver, BC Canada
| | - Dixie L Mager
- Terry Fox Laboratory, British Columbia Cancer Agency, 675 West 10th Avenue, Vancouver, BC V5Z1L3 Canada ; Department of Medical Genetics, University of British Columbia, Vancouver, BC Canada
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Xiao Y, Jiao C, Lin Y, Chen M, Zhang J, Wang J, Zhang Z. lncRNA UCA1 Contributes to Imatinib Resistance by Acting as a ceRNA Against miR-16 in Chronic Myeloid Leukemia Cells. DNA Cell Biol 2016; 36:18-25. [PMID: 27854515 DOI: 10.1089/dna.2016.3533] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Imatinib (IM) has been applied to the chronic phase of chronic myeloid leukemia (CML) and has great benefit on the prognosis of patients with CML. The function of drug efflux mediated by multidrug resistance protein-1 (MDR1) is considered as a main reason for IM drug resistance in CML cells. However, the exact mechanisms of MDR1 modulation in IM resistance of CML cells remain unclear. In the present study, long noncoding RNA (lncRNA) UCA1 was identified as an important modulator of MDR1 by a model system of leukemia cell lines with a gradual increase of MDR1 expression and IM resistance. Overexpression of UCA1 increased MDR1 expression to promote IM resistance of CML cells. Furthermore, for the first time, we demonstrated that UCA1 functions as a competitive endogenous (ceRNA) of MDR1 through completely binding the common miR-16. UCA1-MDR1 might be a novel target for enhancing the therapeutic efficacy of CML patients with IM resistance.
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Affiliation(s)
- Yun Xiao
- 1 Department of Clinical Laboratory, Zhongshan Hospital of Xiamen University , Xiamen, Fujian Province, China
| | - Changjie Jiao
- 2 Department of Cardiothoracic Surgery, The Affiliated Dongnan Hospital of Xiamen University , Xiamen, Fujian Province, China
| | - Yiqiang Lin
- 1 Department of Clinical Laboratory, Zhongshan Hospital of Xiamen University , Xiamen, Fujian Province, China
| | - Meijun Chen
- 1 Department of Clinical Laboratory, Zhongshan Hospital of Xiamen University , Xiamen, Fujian Province, China
| | - Jingwen Zhang
- 1 Department of Clinical Laboratory, Zhongshan Hospital of Xiamen University , Xiamen, Fujian Province, China
| | - Jiajia Wang
- 1 Department of Clinical Laboratory, Zhongshan Hospital of Xiamen University , Xiamen, Fujian Province, China
| | - Zhongying Zhang
- 1 Department of Clinical Laboratory, Zhongshan Hospital of Xiamen University , Xiamen, Fujian Province, China
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Yang Y, Wang Y, Lai J, Shen S, Wang F, Kong J, Zhang W, Yang H. Long non-coding RNA UCA1 contributes to the progression of oral squamous cell carcinoma by regulating the WNT/β-catenin signaling pathway. Cancer Sci 2016; 107:1581-1589. [PMID: 27560546 PMCID: PMC5132283 DOI: 10.1111/cas.13058] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 08/07/2016] [Accepted: 08/13/2016] [Indexed: 01/25/2023] Open
Abstract
With the development of functional genomics studies, a mass of long non-coding RNAs (LncRNA) were discovered from the human genome. Long non-coding RNAs serve as pivotal regulators of genes that are able to generate LncRNA-binding protein complexes to modulate a great number of genes. Recently, the LncRNA urothelial carcinoma-associated 1 (UCA1) has been revealed to be dysregulated, which plays a critical role in the development of a few cancers. However, the role of the biology and clinical significance of UCA1 in the tumorigenesis of oral squamous cell carcinoma (OSCC) remain unknown. We found that UCA1 expression levels were upregulated aberrantly in tongue squamous cell carcinoma tissues and associated with lymph node metastasis and TNM stage. We explored the expression, function, and molecular mechanism of LncRNA UCA1 in OSCC. In the present work, we revealed that UCA1 silencing suppressed proliferation and metastasis and induced apoptosis of OSCC cell lines in vitro and in vivo, which might be related to the activation level of the WNT/β-catenin signaling pathway. Our research results emphasize the pivotal role of UCA1 in the oncogenesis of OSCC and reveal a novel LncRNA UCA1-β-catenin-WNT signaling pathway regulatory network that could contribute to our understanding in the pathogenesis of OSCC and assist in the discovery of a viable LncRNA-directed diagnostic and therapeutic strategy for this fatal disease.
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Affiliation(s)
- Yong‐Tao Yang
- Graduate schoolGuangzhou Medical UniversityGuangzhouChina
- Department of Oral and Maxillofacial surgeryPeking University Shenzhen HospitalShenzhenChina
| | - Yu‐Fan Wang
- Department of Oral and Maxillofacial surgeryPeking University Shenzhen HospitalShenzhenChina
| | - Ju‐Yi Lai
- Shenzhen TCM HospitalGuangzhou University of Traditional Chinese MedicineShenzhenChina
| | - Shi‐Yue Shen
- Department of Oral and Maxillofacial surgeryPeking University Shenzhen HospitalShenzhenChina
| | - Feng Wang
- Department of Oral and Maxillofacial surgeryPeking University Shenzhen HospitalShenzhenChina
| | - Jie Kong
- Department of Oral and Maxillofacial surgeryPeking University Shenzhen HospitalShenzhenChina
| | - Wei Zhang
- Biomedical Research InstituteShenzhen Peking University–The Hong Kong University of Science and Technology Medical CenterShenzhenChina
| | - Hong‐Yu Yang
- Department of Oral and Maxillofacial surgeryPeking University Shenzhen HospitalShenzhenChina
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Long non-coding RNA UCA1 promotes cisplatin/gemcitabine resistance through CREB modulating miR-196a-5p in bladder cancer cells. Cancer Lett 2016; 382:64-76. [DOI: 10.1016/j.canlet.2016.08.015] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 08/17/2016] [Accepted: 08/17/2016] [Indexed: 11/23/2022]
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172
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Wu C, Luo J. Long Non-Coding RNA (lncRNA) Urothelial Carcinoma-Associated 1 (UCA1) Enhances Tamoxifen Resistance in Breast Cancer Cells via Inhibiting mTOR Signaling Pathway. Med Sci Monit 2016; 22:3860-3867. [PMID: 27765938 PMCID: PMC5077288 DOI: 10.12659/msm.900689] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Long non-coding RNA (lncRNA) UCA1 is an oncogene in breast cancer. The purpose of this study was to investigate the role of UCA1 in tamoxifen resistance of estrogen receptor positive breast cancer cells. Material/Methods Tamoxifen sensitive MCF-7 cells were transfected for UCA1 overexpression, while tamoxifen resistant LCC2 and LCC9 cells were transfected with UCA siRNA for UCA1 knockdown. qRT-PCR was performed to analyze UCA1 expression. CCK-8 assay, immunofluorescence staining of cleaved caspase-9, and flow cytometric analysis of Annexin V/PI staining were used to assess tamoxifen sensitivity. Western blot analysis was performed to detect p-AKT and p-mTOR expression. Results LncRNA UCA1 was significantly upregulated in tamoxifen resistant breast cancer cells compared to tamoxifen sensitive cells. LCC2 and LCC9 cells transfected with UCA1 siRNA had significantly higher ratio of apoptosis after tamoxifen treatment. UCA1 siRNA significantly decreased the protein levels of p-AKT and p-mTOR in LCC2 and LCC9 cells. Enforced UCA1 expression substantially reduced tamoxifen induced apoptosis in MCF-7 cells, while rapamycin treatment abrogated the protective effect of UCA1. Conclusions UCA1 upregulation was associated with tamoxifen resistance in breast cancer. Mechanistically, UCA1 confers tamoxifen resistance to breast cancer cells partly via activating the mTOR signaling pathway.
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Affiliation(s)
- Chihua Wu
- Department of Breast Surgery, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, School of Clinical Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China (mainland)
| | - Jing Luo
- Department of Breast Surgery, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, School of Clinical Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China (mainland)
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173
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Wang X, Yang B, Ma B. The UCA1/miR-204/Sirt1 axis modulates docetaxel sensitivity of prostate cancer cells. Cancer Chemother Pharmacol 2016; 78:1025-1031. [DOI: 10.1007/s00280-016-3158-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 09/15/2016] [Indexed: 01/07/2023]
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174
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Nikpayam E, Tasharrofi B, Sarrafzadeh S, Ghafouri-Fard S. The Role of Long Non-Coding RNAs in Ovarian Cancer. IRANIAN BIOMEDICAL JOURNAL 2016; 21:3-15. [PMID: 27132108 PMCID: PMC5141250 DOI: 10.6091/.21.1.24] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background: Mesenchymal stem cells (MSCs) are important candidates for MSC-based cellular therapy. Current paradigm states that MSCs support local progenitor cells in damaged tissue through paracrine signaling. Therefore, the study of paracrine effects and secretome of MSCs could lead to the appreciation of mechanisms and molecules associated with the therapeutic effects of these cells. This study analyzed anti-inflammatory and immune-modulatory effects of MSC secretomes derived from embryonic stem cells (ESCs) and bone marrow cells after hypoxia and normoxia preconditioning. Methods: ESCs differentiated into MSCs and characterized by flow cytometry as well as by differentiation into adipocytes and osteoblasts. The experimental groups were consisted of individual groups of ESC-MSCs and BM-MSCs (bone marrow-derived mesenchymal stromal cells), which were preconditioned with either hypoxia or normoxia for 24, 48 and 72 h. After collecting the cell-free medium from each treatment, secretomes were concentrated by centrifugal filters. Using a peripheral blood mononuclear cell (PBMC) assay and ELISA, IL-10 concentration in PBMCs was evaluated after their incubation with different secretomes from preconditioned and non-preconditioned MSCs. Results: A significant difference was observed between ESC-MSC normoxia and ESC-MSC hypoxia in IL-10 concentration, and normoxia secretomes increased IL-10 secretion from PBMCs. Moreover, the strongest IL-10 secretion from PBMCs could be detected after the stimulation by ESC-MSC conditioned secretomes, but not BM-MSC conditioned medium. Conclusions: Human hypoxia preconditioned ESC-MSC secretome indicated stronger immune-modulatory effects compared to BM-MSC conditioned medium. It could be suggested that induced MSCs confer less immune-modulatory effects but produce more inflammatory molecules such as tumor necrosis factor α, which needs further investigation.
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Affiliation(s)
- Elahe Nikpayam
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Behnoosh Tasharrofi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shaghayegh Sarrafzadeh
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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175
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Fu XL, Liu DJ, Yan TT, Yang JY, Yang MW, Li J, Huo YM, Liu W, Zhang JF, Hong J, Hua R, Chen HY, Sun YW. Analysis of long non-coding RNA expression profiles in pancreatic ductal adenocarcinoma. Sci Rep 2016; 6:33535. [PMID: 27628540 PMCID: PMC5024322 DOI: 10.1038/srep33535] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 08/25/2016] [Indexed: 12/13/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) remains one of the most aggressive and lethal malignancies. Long non-coding RNAs (lncRNAs) are a novel class of non-protein-coding transcripts that have been implicated in cancer biogenesis and prognosis. By repurposing microarray probes, we herein analysed the lncRNA expression profiles in two public PDAC microarray datasets and identified 34 dysregulated lncRNAs in PDAC. In addition, the expression of 6 selected lncRNAs was confirmed in Ren Ji cohort and pancreatic cell lines, and their association with 80 PDAC patients' clinicopathological features and prognosis was investigated. Results indicated that AFAP1-AS1, UCA1 and ENSG00000218510 might be involved in PDAC progression and significantly associated with overall survival of PDAC. UCA1 and ENSG00000218510 expression status may serve as independent prognostic biomarkers for overall survival of PDAC. Gene set enrichment analysis (GSEA) analysis suggested that high AFAP1-AS1, UCA1 and low ENSG00000218510 expression were correlated with several tumorigenesis related pathways. Functional experiments demonstrated that AFAP1-AS1 and UCA1 were required for efficient invasion and/or proliferation promotion in PDAC cell lines, while ENSG00000218510 acted the opposite. Our findings provide novel information on lncRNAs expression profiles which might be beneficial to the precise diagnosis, subcategorization and ultimately, the individualized therapy of PDAC.
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Affiliation(s)
- Xue-Liang Fu
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - De-Jun Liu
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - Ting-Ting Yan
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Division of Gastroenterology and Hepatology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai cancer Institute, Shanghai Institute of Digestive Diseases, 145 Middle Shandong Road, Shanghai 200001, P.R. China
| | - Jian-Yu Yang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - Min-Wei Yang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - Jiao Li
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - Yan-Miao Huo
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - Wei Liu
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - Jun-Feng Zhang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - Jie Hong
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Division of Gastroenterology and Hepatology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai cancer Institute, Shanghai Institute of Digestive Diseases, 145 Middle Shandong Road, Shanghai 200001, P.R. China
| | - Rong Hua
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
| | - Hao-Yan Chen
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Division of Gastroenterology and Hepatology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai cancer Institute, Shanghai Institute of Digestive Diseases, 145 Middle Shandong Road, Shanghai 200001, P.R. China
| | - Yong-Wei Sun
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200127, P.R. China
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176
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Takenaka K, Chen BJ, Modesitt SC, Byrne FL, Hoehn KL, Janitz M. The emerging role of long non-coding RNAs in endometrial cancer. Cancer Genet 2016; 209:445-455. [PMID: 27810073 DOI: 10.1016/j.cancergen.2016.09.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/19/2016] [Accepted: 09/08/2016] [Indexed: 12/22/2022]
Abstract
The human genome is pervasively transcribed and approximately 98% of the genome is non-coding. Long non-coding RNAs (lncRNAs) are a heterogeneous group of RNA transcripts that are >200 nucleotides in length with minimal to no protein-coding potential. Similar to proteins, lncRNAs have important biological functions in both normal cells and disease states including many types of cancer. This review summarizes recent advances in our understanding of lncRNAs in cancer biology and highlights the potential for lncRNA as diagnostic biomarkers and therapeutics. Herein we focus on the poorly understood role of lncRNAs in endometrial cancer, the most common gynecologic malignancy in the developed world.
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Affiliation(s)
- Konii Takenaka
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Bei Jun Chen
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Susan C Modesitt
- Division of Gynecologic Oncology, Obstetrics and Gynecology Department, University of Virginia Health System, Charlottesville, VA 22908, USA
| | - Frances L Byrne
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Kyle L Hoehn
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Michael Janitz
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia.
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177
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Cerk S, Schwarzenbacher D, Adiprasito JB, Stotz M, Hutterer GC, Gerger A, Ling H, Calin GA, Pichler M. Current Status of Long Non-Coding RNAs in Human Breast Cancer. Int J Mol Sci 2016; 17:ijms17091485. [PMID: 27608009 PMCID: PMC5037763 DOI: 10.3390/ijms17091485] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 08/22/2016] [Accepted: 08/26/2016] [Indexed: 02/07/2023] Open
Abstract
Breast cancer represents a major health burden in Europe and North America, as recently published data report breast cancer as the second leading cause of cancer related death in women worldwide. Breast cancer is regarded as a highly heterogeneous disease in terms of clinical course and biological behavior and can be divided into several molecular subtypes, with different prognosis and treatment responses. The discovery of numerous non-coding RNAs has dramatically changed our understanding of cell biology, especially the pathophysiology of cancer. Long non-coding RNAs (lncRNAs) are non-protein-coding transcripts >200 nucleotides in length. Several studies have demonstrated their role as key regulators of gene expression, cell biology and carcinogenesis. Deregulated expression levels of lncRNAs have been observed in various types of cancers including breast cancer. lncRNAs are involved in cancer initiation, progression, and metastases. In this review, we summarize the recent literature to highlight the current status of this class of long non-coding lncRNAs in breast cancer.
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Affiliation(s)
- Stefanie Cerk
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz 8026, Austria.
- Research Unit of Non-coding RNA and Genome Editing in Cancer, Medical University of Graz, Graz 8036, Austria.
| | - Daniela Schwarzenbacher
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz 8026, Austria.
- Research Unit of Non-coding RNA and Genome Editing in Cancer, Medical University of Graz, Graz 8036, Austria.
| | - Jan Basri Adiprasito
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz 8026, Austria.
- Research Unit of Non-coding RNA and Genome Editing in Cancer, Medical University of Graz, Graz 8036, Austria.
| | - Michael Stotz
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz 8026, Austria.
- Research Unit of Non-coding RNA and Genome Editing in Cancer, Medical University of Graz, Graz 8036, Austria.
| | - Georg C Hutterer
- Department of Urology, Medical University of Graz, Graz 8036, Austria.
| | - Armin Gerger
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz 8026, Austria.
| | - Hui Ling
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA.
| | - George Adrian Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA.
| | - Martin Pichler
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz 8026, Austria.
- Research Unit of Non-coding RNA and Genome Editing in Cancer, Medical University of Graz, Graz 8036, Austria.
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA.
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178
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Long non-coding RNA UCA1 promotes the tumorigenesis in pancreatic cancer. Biomed Pharmacother 2016; 83:1220-1226. [PMID: 27562722 DOI: 10.1016/j.biopha.2016.08.041] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/05/2016] [Accepted: 08/15/2016] [Indexed: 02/01/2023] Open
Abstract
The contribution of long non-coding RNAs (lncRNAs) to tumorigenesis and metastasis of pancreatic cancer (PC) remains largely unknown. Urothelial cancer-associated 1 (UCA1), which is an originally identified lncRNA in bladder cancer, has be proved to play a pivotal role in bladder cancer progression and embryonic development. In this study, we detected the mRNA expression of UCA1 in 128 PC patients by qRT-PCR, and found that UCA1 expression was significantly, up-regulated in tumor tissues than that in matched adjacent non-tumor tissues (p<0.05). Clinicopathological analysis demonstrated that UCA1 expression in PC significantly correlated with malignant potential factors such as tumor size (p=0.021), depth of invasion (p=0.033), CA19-9 level (p=0.034) and tumor stage (p=0.013). Cox proportional hazards regression analysis also confirmed that high UCA1 expression was an independent prognostic biomarker of PC (p=0.046), which led to an obviously shorter 5-year overall survival (OS) compared to those patients with low UCA1 expressions (p=0.018). Furthermore, we effectively down-regulated UCA1 mRNA expression by transfecting RNA interfere fragments into SW-1990 cells, and our results in vitro indicated that down-regulation of UCA1 could effectively inhibit the cell proliferative activities, induce apoptotic rate and cause cell cycle arrest in PC cells (p<0.05). Meanwhile, UCA1 expression negative-correlated with p27 in PC tissues (r2=0.46, p<0.01), and knockdown of p27 partly abrogated the cell proliferative activities caused by UCA1 (p<0.05). Our results raised the possibility of using UCA1 as a potential prognostic biomarker and therapy target of PC, and down-regulation of UCA1 might be considered to be a novel molecular treatment strategy for patients with PC.
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179
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Chen J, Miao Z, Xue B, Shan Y, Weng G, Shen B. Long Non-coding RNAs in Urologic Malignancies: Functional Roles and Clinical Translation. J Cancer 2016; 7:1842-1855. [PMID: 27698924 PMCID: PMC5039368 DOI: 10.7150/jca.15876] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 06/29/2016] [Indexed: 12/31/2022] Open
Abstract
Early diagnosis and surveillance for metastasis and recurrences are critical issues of urologic cancer. Deregulation of long non-coding RNAs (lncRNAs) has been implicated in urologic malignancies and represents potential markers or therapeutic targets. However, the utility of lncRNA as biomarkers appears to be overstated due to heterogeneous or irreproducible results from different studies. Thus, a critical and cautious review on the biomarker potential of lncRNAs is needed. This review provides an update on new findings of lncRNA-based markers for urologic cancer. The diverse mechanisms and associated examples of lncRNAs involved during the carcinogenesis of prostate cancer, bladder cancer and renal cancer were discussed in a more balanced and critical manner, as were the suitability of lncRNAs as diagnostic or prognostics markers.
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Affiliation(s)
- Jiajia Chen
- Center for Systems Biology, Soochow University, Suzhou 215006, China; School of Chemistry, Biological Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
| | - Zhijun Miao
- Center for Systems Biology, Soochow University, Suzhou 215006, China; Suzhou Dushuhu Hospital, Clinic Center, Soochow University, Suzhou 215123, China
| | - Boxin Xue
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Yuxi Shan
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Guobin Weng
- Ningbo Urologic and Nephrotic Hospital, Ningbo 315000, China
| | - Bairong Shen
- Center for Systems Biology, Soochow University, Suzhou 215006, China
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180
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Cheng N, Cai W, Ren S, Li X, Wang Q, Pan H, Zhao M, Li J, Zhang Y, Zhao C, Chen X, Fei K, Zhou C, Hirsch FR. Long non-coding RNA UCA1 induces non-T790M acquired resistance to EGFR-TKIs by activating the AKT/mTOR pathway in EGFR-mutant non-small cell lung cancer. Oncotarget 2016; 6:23582-93. [PMID: 26160838 PMCID: PMC4695138 DOI: 10.18632/oncotarget.4361] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 06/01/2015] [Indexed: 12/27/2022] Open
Abstract
The aim of this study was to explore the role of long non-coding RNA UCA1 (urothelial cancer-associated 1) in acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) in EGFR-mutant non-small cell lung cancer (NSCLC). In our study, UCA1 expression was significantly increased in lung cancer cells and patients with acquired resistance to EGFR-TKIs. Over-expression of UCA1 was significantly associated with a shorter progression-free survival (PFS) [13.0 vs. 8.5 months, P < 0.01] in tumors with respond to EGFR-TKIs. The significant relationship was not observed in patients with T790M mutation (10.5 vs. 12.0 months, P = 0.778), but in patients with non-T790M (19.0 vs. 9.0 months, P = 0.023). UCA1 knockdown restored gefitinib sensitivity in acquired resistant cells with non-T790M and inhibited the activation of the AKT/mTOR pathway and epithelial-mesenchymal transition (EMT). The mTOR inhibitor was effective in UCA1-expressing cell PC9/R. Inhibiting mTOR could change the expression of UCA1, although there was no significant difference. In conclusion, the influence of over-expression of UCA1 on PFS for patients with acquired resistance to EGFR-TKIs was from the subgroup with non-T790M mutation. UCA1 may induce non-T790M acquired resistance to EGFR-TKIs by activating the AKT/mTOR pathway and EMT.
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Affiliation(s)
- Ningning Cheng
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Weijing Cai
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Shengxiang Ren
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Xuefei Li
- Department of Lung Cancer and Immunology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Qi Wang
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Hui Pan
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Mingchuan Zhao
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Jiayu Li
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Yishi Zhang
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Chao Zhao
- Department of Lung Cancer and Immunology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Xiaoxia Chen
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Ke Fei
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Caicun Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Tongji University Medical School Cancer Institute, Shanghai, P. R. China
| | - Fred R Hirsch
- Department of Medical and Pathology, University of Colorado Cancer Center, Aurora, Colorado, USA
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181
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Abstract
Despite great progress in research and treatment options, lung cancer remains the leading cause of cancer-related deaths worldwide. Oncogenic driver mutations in protein-encoding genes were defined and allow for personalized therapies based on genetic diagnoses. Nonetheless, diagnosis of lung cancer mostly occurs at late stages, and chronic treatment is followed by a fast onset of chemoresistance. Hence, there is an urgent need for reliable biomarkers and alternative treatment options. With the era of whole genome and transcriptome sequencing technologies, long noncoding RNAs emerged as a novel class of versatile, functional RNA molecules. Although for most of them the mechanism of action remains to be defined, accumulating evidence confirms their involvement in various aspects of lung tumorigenesis. They are functional on the epigenetic, transcriptional, and posttranscriptional level and are regulators of pathophysiological key pathways including cell growth, apoptosis, and metastasis. Long noncoding RNAs are gaining increasing attention as potential biomarkers and a novel class of druggable molecules. It has become clear that we are only beginning to understand the complexity of tumorigenic processes. The clinical integration of long noncoding RNAs in terms of prognostic and predictive biomarker signatures and additional cancer targets could provide a chance to increase the therapeutic benefit. Here, we review the current knowledge about the expression, regulation, biological function, and clinical relevance of long noncoding RNAs in lung cancer.
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Affiliation(s)
- Anna Roth
- Division of RNA Biology and Cancer, German Cancer Research Center (DKFZ) and Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 280 (B150), 69120, Heidelberg, Germany
| | - Sven Diederichs
- Division of RNA Biology and Cancer, German Cancer Research Center (DKFZ) and Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 280 (B150), 69120, Heidelberg, Germany.
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182
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Göke J, Ng HH. CTRL+INSERT: retrotransposons and their contribution to regulation and innovation of the transcriptome. EMBO Rep 2016; 17:1131-44. [PMID: 27402545 DOI: 10.15252/embr.201642743] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 06/20/2016] [Indexed: 12/25/2022] Open
Abstract
The human genome contains millions of fragments from retrotransposons-highly repetitive DNA sequences that were once able to "copy and paste" themselves to other regions in the genome. However, the majority of retrotransposons have lost this capacity through acquisition of mutations or through endogenous silencing mechanisms. Without this imminent threat of transposition, retrotransposons have the potential to act as a major source of genomic innovation. Indeed, large numbers of retrotransposons have been found to be active in specific contexts: as gene regulatory elements and promoters for protein-coding genes or long noncoding RNAs, among others. In this review, we summarise recent findings about retrotransposons, with implications in gene expression regulation, the expansion of gene isoform diversity and the generation of long noncoding RNAs. We highlight key examples that demonstrate their role in cellular identity and their versatility as markers of cell states, and we discuss how their dysregulation may contribute to the formation of and possibly therapeutic response in human cancers.
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Affiliation(s)
- Jonathan Göke
- Computational and Systems Biology, Genome Institute of Singapore, Singapore
| | - Huck Hui Ng
- Gene Regulation Laboratory, Genome Institute of Singapore, Singapore Department of Biochemistry, National University of Singapore, Singapore Department of Biological Sciences, National University of Singapore, Singapore School of Biological Sciences, Nanyang Technological University, Singapore
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183
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Li W, Xie P, Ruan WH. Overexpression of lncRNA UCA1 promotes osteosarcoma progression and correlates with poor prognosis. J Bone Oncol 2016; 5:80-5. [PMID: 27335776 PMCID: PMC4908186 DOI: 10.1016/j.jbo.2016.05.003] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 05/06/2016] [Indexed: 10/28/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been proved to play important roles in the tumorigenesis and development of several human malignancies. Our study aims to investigate the expression and function of lncRNA-UCA1 in osteosarcoma. lncRNA-UCA1 expression was detected in osteosarcoma tissues and cell lines by using qRT-PCR. Association between lncRNA-UCA1 levels and clinicopathological factors and patient's prognosis was analyzed. The roles of lncRNA-UCA1 in regulating osteosarcoma cell proliferation, apoptosis, migration, and invasion were evaluated in vitro. We found that lncRNA-UCA1 expression was upregulated in osteosarcoma tissues and cell lines. High lncRNA-UCA1 expression was significantly correlated with large tumor size, high tumor grade, positive distant metastasis, and advanced clinical stage. Multivariate regression analysis identified lncRNA-UCA1 overexpression as an independent unfavorable prognostic factor. lncRNA-UCA1 knockdown inhibited osteosarcoma cell proliferation, promoted cell apoptosis, and suppressed cell invasion and migration, whereas lncRNA-UCA1 overexpression showed opposite effects. These findings suggested that lncRNA-UCA1 may contribute to osteosarcoma initiation and progression, and would be not only a novel prognostic marker but also a potential therapeutic target for this disease.
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Affiliation(s)
- Wei Li
- Department of spine surgery, Hanzhong Municipal Central Hospital, Hanzhong 723000, Shaanxi Province, China
| | - Peng Xie
- Department of bone and joint trauma, Hanzhong Municipal Central Hospital, Hanzhong 723000, Shaanxi Province, China
| | - Wen-hui Ruan
- Department of bone and joint trauma, Hanzhong Municipal Central Hospital, Hanzhong 723000, Shaanxi Province, China
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184
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Hughes JM, Legnini I, Salvatori B, Masciarelli S, Marchioni M, Fazi F, Morlando M, Bozzoni I, Fatica A. C/EBPα-p30 protein induces expression of the oncogenic long non-coding RNA UCA1 in acute myeloid leukemia. Oncotarget 2016; 6:18534-44. [PMID: 26053097 PMCID: PMC4621908 DOI: 10.18632/oncotarget.4069] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 05/13/2015] [Indexed: 12/30/2022] Open
Abstract
Accumulating evidences indicate that different long non-coding RNAs (lncRNAs) might play a relevant role in tumorigenesis, with their expression and function already associated to cancer development and progression. CCAAT/enhancer-binding protein-α (CEBPA) is a critical regulator of myeloid differentiation whose inactivation contributes to the development of acute myeloid leukemia (AML). Mutations in C/EBPα occur in around 10% of AML cases, leading to the expression of a 30-kDa dominant negative isoform (C/EBPα-p30). In this study, we identified the oncogenic urothelial carcinoma associated 1 (UCA1) lncRNA as a novel target of the C/EBPα-p30. We show that wild-type C/EBPα and C/EBPα-p30 isoform can bind the UCA1 promoter but have opposite effects on UCA1 expression. While wild-type C/EBPα represses, C/EBPα-p30 can induce UCA1 transcription. Notably, we also show that UCA1 expression increases in cytogenetically normal AML cases carrying biallelic CEBPA mutations. Furthermore, we demonstrate that UCA1 sustains proliferation of AML cells by repressing the expression of the cell cycle regulator p27kip1. Thus, we identified, for the first time, an oncogenic lncRNA functioning in concert with the dominant negative isoform of C/EBPα in AML.
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Affiliation(s)
- James M Hughes
- Department of Biology and Biotechnology "C. Darwin", Sapienza University of Rome, Rome, Italy
| | - Ivano Legnini
- Department of Biology and Biotechnology "C. Darwin", Sapienza University of Rome, Rome, Italy
| | - Beatrice Salvatori
- Department of Biology and Biotechnology "C. Darwin", Sapienza University of Rome, Rome, Italy.,Department of Systems Biology, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA
| | - Silvia Masciarelli
- Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Marcella Marchioni
- Institute of Biology, Molecular Medicine and Nanobiotechnology, CNR, Sapienza University of Rome, Rome, Italy
| | - Francesco Fazi
- Department of Anatomical, Histological, Forensic & Orthopaedic Sciences, Sapienza University of Rome, Rome, Italy
| | - Mariangela Morlando
- Department of Biology and Biotechnology "C. Darwin", Sapienza University of Rome, Rome, Italy
| | - Irene Bozzoni
- Department of Biology and Biotechnology "C. Darwin", Sapienza University of Rome, Rome, Italy.,Institute of Biology, Molecular Medicine and Nanobiotechnology, CNR, Sapienza University of Rome, Rome, Italy.,Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy.,Institute Pasteur Fondazione Cenci-Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Alessandro Fatica
- Department of Biology and Biotechnology "C. Darwin", Sapienza University of Rome, Rome, Italy
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185
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Upregulated lncRNA-UCA1 contributes to progression of hepatocellular carcinoma through inhibition of miR-216b and activation of FGFR1/ERK signaling pathway. Oncotarget 2016; 6:7899-917. [PMID: 25760077 PMCID: PMC4480724 DOI: 10.18632/oncotarget.3219] [Citation(s) in RCA: 305] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 01/26/2015] [Indexed: 12/15/2022] Open
Abstract
The long non-coding RNA (lncRNA) urothelial carcinoma-associated 1 (UCA1) has been recently shown to be dysregulated, which plays an important role in the progression of several cancers. However, the biological role and clinical significance of UCA1 in the carcinogenesis of hepatocellular carcinoma (HCC) remain unclear. Herein, we found that UCA1 was aberrantly upregulated in HCC tissues and associated with TNM stage, metastasis and postoperative survival. UCA1 depletion inhibited the growth and metastasis of HCC cell lines in vitro and in vivo. Furthermore, UCA1 could act as an endogenous sponge by directly binding to miR-216b and downregulation miR-216b expression. In addition, UCA1 could reverse the inhibitory effect of miR-216b on the growth and metastasis of HCC cells, which might be involved in the derepression of fibroblast growth factor receptor 1 (FGFR1) expression, a target gene of miR-216b, and the activation of ERK signaling pathway. Taken together, our data highlights the pivotal role of UCA1 in the tumorigenesis of HCC. Moreover, the present study elucidates a novel lncRNA-miRNA-mRNA regulatory network that is UCA1-miR-216b-FGFR1-ERK signaling pathway in HCC, which may help to lead a better understanding the pathogenesis of HCC and probe the feasibility of lncRNA-directed diagnosis and therapy for this deadly disease.
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186
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Weiss M, Brandenburg LO, Burchardt M, Stope MB. MicroRNA-1 properties in cancer regulatory networks and tumor biology. Crit Rev Oncol Hematol 2016; 104:71-7. [PMID: 27286699 DOI: 10.1016/j.critrevonc.2016.05.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 04/18/2016] [Accepted: 05/25/2016] [Indexed: 02/07/2023] Open
Abstract
Short non-coding microRNAs have been identified to orchestrate crucial mechanisms in cancer progression and treatment resistance. MicroRNAs are involved in posttranscriptional modulation of gene expression and therefore represent promising targets for anticancer therapy. As mircoRNA-1 (miR-1) exerted to be predominantly downregulated in the majority of examined tumors, miR-1 is classified to be a tumor suppressor with high potential to diminish tumor development and therapy resistance. Here we review the complex functionality of miR-1 in tumor biology.
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Affiliation(s)
- Martin Weiss
- Department of Urology, University Medicine Greifswald, Greifswald, Germany
| | | | - Martin Burchardt
- Department of Urology, University Medicine Greifswald, Greifswald, Germany
| | - Matthias B Stope
- Department of Urology, University Medicine Greifswald, Greifswald, Germany.
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187
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Jain S, Thakkar N, Chhatai J, Pal Bhadra M, Bhadra U. Long non-coding RNA: Functional agent for disease traits. RNA Biol 2016; 14:522-535. [PMID: 27229269 DOI: 10.1080/15476286.2016.1172756] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
In recent years, long non-coding RNAs (lncRNAs) have attracted the attention of researchers with their involvement in all facets of life. LncRNAs are transcripts of more than 200 nucleotides which lack defined protein coding potential. Although they do not code for proteins, a large number of them are involved in regulating gene expression and translation. The presence of numerous lncRNAs in the human genome has prompted us to investigate the contribution of these molecules to human biology and medicine. In this review, we present the potential role of lncRNAs interlinked to different human diseases and genetic disorders. We also describe their role in cellular differentiation and aging and discuss their potential importance as biomarkers and as therapeutic agents.
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Affiliation(s)
- Sriyans Jain
- a Functional Genomics and Gene Silencing Group , CSIR- Center for Cellular and Molecular Biology , Hyderabad , India
| | - Nirav Thakkar
- a Functional Genomics and Gene Silencing Group , CSIR- Center for Cellular and Molecular Biology , Hyderabad , India
| | - Jagamohan Chhatai
- a Functional Genomics and Gene Silencing Group , CSIR- Center for Cellular and Molecular Biology , Hyderabad , India
| | - Manika Pal Bhadra
- b Centre for Chemical Biology , Indian Institute for Chemical Technology , Hyderabad , India
| | - Utpal Bhadra
- a Functional Genomics and Gene Silencing Group , CSIR- Center for Cellular and Molecular Biology , Hyderabad , India
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188
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Zhang Y, Jiang F, Bao W, Zhang H, He X, Wang H, Wan X. SOX17 increases the cisplatin sensitivity of an endometrial cancer cell line. Cancer Cell Int 2016; 16:29. [PMID: 27065754 PMCID: PMC4826500 DOI: 10.1186/s12935-016-0304-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 03/31/2016] [Indexed: 01/22/2023] Open
Abstract
Background Endometrial cancer (EC) is the most common form of malignant gynecological tumor. Treatment with cisplatin (CDDP) is the mainstay of EC chemotherapy. The apoptotic machinery is regarded as an important etiological factor in chemoresistance. Recent evidence has suggested that overexpression of the transcription factor SOX17 prevented apoptosis in tumor cell lines. The effect of SOX17 on apoptosis in EC cisplatin chemoresistance remains unclear. Methods Immunohistochemistry and the reverse transcription-polymerase chain reaction were employed to detect gene expression in paraffin-embedded EC tissues and blood samples. The anti-proliferative ability of SOX17 on EC cells was assessed by MTT. Flow cytometric analysis was used to detect cell apoptosis by annexin V/PI double-staining. The expression of apoptosis-related proteins was analyzed by western blot. In the in vivo study, nude mice were subcutaneously injected with EC cells, and received cisplatin treatment through intraperitoneal chemotherapy. Apoptosis of in vivo samples was analyzed by TUNEL assay. Results SOX17 expression decreased the chemical resistance of EC cells to CDDP. HEC-1B cells with an elevated expression of SOX17 had a lower cell viability and higher apoptosis rate after cisplatin exposure. Overexpression SOX17 up-regulated wild type p53 after being exposed to cisplatin, while the expression of BCL2-associated X protein and cleaved caspase-3 simultaneously increased. Caspase-9 inhibitor reduced the efficacy of SOX17 in HEC-1B cells after cisplatin treatment. In the in vivo study, SOX17 overexpression clearly restrained the tumor growth and increased the cisplatin toxicity and apoptosis of tumor cells. Conclusions SOX17 is involved in the p53-mediated apoptosis pathway, and increases the sensitivity of HEC-1B cells to cisplatin. Electronic supplementary material The online version of this article (doi:10.1186/s12935-016-0304-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yongli Zhang
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital Affiliated to Shanghai Jiao Tong University, No. 650 Xinsongjiang Road, Shanghai, 201620 China ; Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, No. 2699 Gaokexi Road, Shanghai, 201204 China
| | - FeiZhou Jiang
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital Affiliated to Shanghai Jiao Tong University, No. 650 Xinsongjiang Road, Shanghai, 201620 China
| | - Wei Bao
- Department of Obstetrics and Gynecology, International Peace Maternity & Child Health Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No. 910 Hengshan Road, Shanghai, 200031 China
| | - Huilin Zhang
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital Affiliated to Shanghai Jiao Tong University, No. 650 Xinsongjiang Road, Shanghai, 201620 China
| | - XiaoYing He
- Department of Obstetrics and Gynecology, International Peace Maternity & Child Health Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, No. 910 Hengshan Road, Shanghai, 200031 China
| | - Huihui Wang
- Department of Obstetrics and Gynecology, Shanghai First People's Hospital Affiliated to Shanghai Jiao Tong University, No. 650 Xinsongjiang Road, Shanghai, 201620 China
| | - Xiaoping Wan
- Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, No. 2699 Gaokexi Road, Shanghai, 201204 China
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189
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Retrotransposon-associated long non-coding RNAs in mice and men. Pflugers Arch 2016; 468:1049-60. [DOI: 10.1007/s00424-016-1818-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 03/28/2016] [Indexed: 01/01/2023]
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190
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LncRNA-UCA1 enhances cell proliferation and 5-fluorouracil resistance in colorectal cancer by inhibiting miR-204-5p. Sci Rep 2016; 6:23892. [PMID: 27046651 PMCID: PMC4820696 DOI: 10.1038/srep23892] [Citation(s) in RCA: 295] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 03/16/2016] [Indexed: 12/19/2022] Open
Abstract
Recent preliminary studies reported the in vitro tumor-promoting effects of long non-coding RNA urothelial carcinoma associated 1 (UCA1) in colorectal cancer (CRC). However, the in vivo functions and molecular mechanism of UCA1 in CRC remain unclear. Therefore, we investigated the detailed role and mechanism of UCA1 in CRC. We found that UCA1 was up-regulated in CRCs and negatively correlated with survival time in two CRC cohorts. Functional assays revealed the in vitro and in vivo growth-promoting function of UCA1 and revealed that UCA1 can decrease the sensitivity of CRC cells to 5-FU by attenuating apoptosis. Further mechanistic studies revealed that UCA1 could sponge endogenous miR-204-5p and inhibit its activity. We also identified CREB1 as a new target of miR-204-5p. The protein levels of CREB1 were significantly up-regulated in CRCs, negatively associated with survival time and positively correlated with the UCA1 expression. The present work provides the first evidence of a UCA1-miR-204-5p-CREB1/BCL2/RAB22A regulatory network in CRC and reveals that UCA1 and CREB1 are potential new oncogenes and prognostic factors for CRC.
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191
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Dhamija S, Diederichs S. From junk to master regulators of invasion: lncRNA functions in migration, EMT and metastasis. Int J Cancer 2016; 139:269-80. [PMID: 26875870 DOI: 10.1002/ijc.30039] [Citation(s) in RCA: 214] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/04/2016] [Indexed: 01/17/2023]
Abstract
Metastasis is a multistep process that involves the dissemination of cells from the primary tumor and colonization of distant secondary organs. Epithelial cells at the invasive front of a carcinoma acquire an enhanced migratory phenotype in a process called epithelial-to-mesenchymal transition (EMT). This cellular plasticity seems to drive the initiation of metastasis. Identifying important molecules and understanding their molecular mechanisms is a key to cancer prognosis and the development of therapeutics for late stage malignancies. Recent advances in sequencing technology uncovered that the mammalian genome is pervasively transcribed into many nonprotein-coding RNAs including the class of long noncoding RNA, a.k.a. lncRNA. Several lncRNAs are differentially expressed in carcinomas and they are emerging as potent regulators of tumor progression and metastasis. Here, we review the diverse molecular mechanisms, cellular roles and regulatory patterns that are becoming apparent for the noncoding transcriptome. Chromatin modification, epigenetic regulation, alternative splicing and translational control by MALAT1, HOTAIR and TRE lncRNAs represent important examples of lncRNA-mediated control of cell migration and invasion, EMT and metastasis. Beyond these better characterized examples, numerous additional transcripts have been associated with cancer metastasis, but their functional roles await their discovery.
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Affiliation(s)
- Sonam Dhamija
- Division of Cancer Research, Dept. of Thoracic Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Division of RNA Biology & Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,CellNetworks Excellence Cluster, University of Heidelberg, Heidelberg, Germany
| | - Sven Diederichs
- Division of Cancer Research, Dept. of Thoracic Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Division of RNA Biology & Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,CellNetworks Excellence Cluster, University of Heidelberg, Heidelberg, Germany
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192
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Montes M, Lund AH. Emerging roles of lncRNAs in senescence. FEBS J 2016; 283:2414-26. [PMID: 26866709 DOI: 10.1111/febs.13679] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/16/2016] [Accepted: 02/09/2016] [Indexed: 12/13/2022]
Abstract
Cellular senescence is a complex stress response that leads to an irreversible state of cell growth arrest. Senescence may be induced by various stimuli such as telomere shortening, DNA damage or oncogenic insult, among others. Senescent cells are metabolically highly active, producing a wealth of cytokines and chemokines that, depending on the context, may have a beneficial or deleterious effect on the organism. Senescence is considered a tightly regulated stress response that is largely governed by the p53/p21 and p16/Rb pathways. Many molecules have been identified as regulators of these two networks, such as transcription factors, chromatin modifiers and non-coding RNAs. The expression level of several long non-coding RNAs is affected during different types of senescence; however, which of these are important for the biological function remains poorly understood. Here we review our current knowledge of the mechanistic roles of lncRNAs affecting the main senescence pathways, and discuss the importance of identifying new regulators.
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Affiliation(s)
- Marta Montes
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Anders H Lund
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
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193
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Li Y, Wang T, Li Y, Chen D, Yu Z, Jin L, Ni L, Yang S, Mao X, Gui Y, Lai Y. Identification of long-non coding RNA UCA1 as an oncogene in renal cell carcinoma. Mol Med Rep 2016; 13:3326-34. [PMID: 26935146 DOI: 10.3892/mmr.2016.4894] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 01/04/2016] [Indexed: 11/06/2022] Open
Abstract
Renal cell carcinoma (RCC) is the most common type of kidney cancer in adults, which is associated with poor prognosis and high recurrence. Long non‑coding RNAs (lncRNAs) have been reported to be dysregulated in cancer and to be important in the regulation of carcinogenesis, thus suggesting that this class of molecules may be used as biomarkers in cancer. The lncRNA urothelial carcinoma associated 1 (UCA1) has been observed to be upregulated and to function as an oncogene in certain types of cancer; however, the role of UCA1 in RCC remains to be elucidated. The present study aimed to determine the expression and function of UCA1 in RCC. Quantitative polymerase chain reaction (qPCR) was used to determine the expression levels of UCA1 in 46 paired RCC and adjacent normal tissue samples. Furthermore, qPCR was used to determine the expression levels of UCA1 in four RCC cell lines compared with the human embryonic kidney 293T cell line. The impact of UCA1 on cell migration, proliferation and apoptosis was investigated by wound scratch assay, MTT and flow cytometry, respectively. The results of the present study demonstrated that UCA1 expression levels were significantly increased in RCC tissues and cells, as compared with the controls. Ectopic expression and gene silencing of UCA1 in RCC cell lines exerted opposite effects on cellular proliferation, migration and apoptosis, and the results suggested that UCA1 may function as an oncogene in RCC. These results indicated that UCA1 may be considered as a promising biomarker for diagnosis, and a therapeutic target in RCC. Further research is required to elucidate the role and target genes of UCA1 in RCC.
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Affiliation(s)
- Yifan Li
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Tiantian Wang
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yuchi Li
- Department of Urology, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Duqun Chen
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Zuhu Yu
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Lu Jin
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Liangchao Ni
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Shangqi Yang
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Xiangming Mao
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yaoting Gui
- The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yongqing Lai
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
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194
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UCA1 functions as a competing endogenous RNA to suppress epithelial ovarian cancer metastasis. Tumour Biol 2016; 37:10633-41. [PMID: 26867765 DOI: 10.1007/s13277-016-4917-1] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 01/27/2016] [Indexed: 02/05/2023] Open
Abstract
Urothelial cancer associated 1 (UCA1) is an example of functional long noncoding RNAs involved in many biologic processes. However, little is known about the association between UCA1 expression and metastasis in epithelial ovarian cancer (EOC). Findings of this study confirmed that not only UCA1 was aberrantly upregulated in EOC tissues and cells, but also correlated with status of lymph node metastasis and FIGO stage. Furthermore, univariate and multivariate analyses showed that UCA1 was a prognostic factor for overall survival in EOC patients. In vitro, knockdown of UCA1 reduced the invasion and migration ability of EOC cells. The results showed that UCA1 could function as an endogenous sponge by directly binding to miR-485-5p. Depletion of UCA1 was involved in the downregulation of matrix metallopeptidase 14 (MMP14) expression, a target gene of miR-485-5p. In conclusion, our work indicates that UCA1 is a new prognostic biomarker for EOC, establishing a novel connection among UCA1, miR-485-5p, and MMP14 in EOC metastasis.
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195
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Zhang L, Cao X, Zhang L, Zhang X, Sheng H, Tao K. UCA1 overexpression predicts clinical outcome of patients with ovarian cancer receiving adjuvant chemotherapy. Cancer Chemother Pharmacol 2016; 77:629-34. [DOI: 10.1007/s00280-016-2963-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 01/05/2016] [Indexed: 01/21/2023]
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196
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Li T, Zheng Q, An J, Wu M, Li H, Gui X, Pu H, Lu D. RETRACTED: SET1A Cooperates With CUDR to Promote Liver Cancer Growth and Hepatocyte-like Stem Cell Malignant Transformation Epigenetically. Mol Ther 2016; 24:261-275. [PMID: 26581161 PMCID: PMC4817816 DOI: 10.1038/mt.2015.208] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 11/08/2015] [Indexed: 12/16/2022] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the editor-in-chief. Similarities were found between images in this article and an article in Oncotarget (Pu et al., 2015, Oncotarget 6, 40775-40798, https://doi.org/10.18632/oncotarget.5905) previously published by the same authors. Similarities were also found between images within this article. Image analysis performed by the editorial office confirmed findings of image reuse in Figures 2E and 6E of the Molecular Therapy article. Some of the original data provided by the authors do not match the published article. This reuse (and in part misrepresentation) of data without appropriate attribution represents a severe abuse of the scientific publishing system. No authors responded to the notice of retraction. The original email was undeliverable to 6 authors (not including the corresponding author; T.L., Q.Z., J.A., M.W., H.L., X.G.).
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Affiliation(s)
- Tianming Li
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Qidi Zheng
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Jiahui An
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Mengying Wu
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Haiyan Li
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Xin Gui
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Hu Pu
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Dongdong Lu
- School of Life Science and Technology, Tongji University, Shanghai, China.
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197
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Circulating Long Noncoding RNA UCA1 as a Novel Biomarker of Acute Myocardial Infarction. BIOMED RESEARCH INTERNATIONAL 2016; 2016:8079372. [PMID: 26949706 PMCID: PMC4753318 DOI: 10.1155/2016/8079372] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/10/2016] [Accepted: 01/10/2016] [Indexed: 12/20/2022]
Abstract
Acute myocardial infarction (AMI) is the most serious cardiovascular disease with high morbidity and mortality. Recent studies have showed that long noncoding RNAs (lnc RNA) play important roles in pathophysiology of cardiovascular diseases, but the investigations are still in their infancy. An lnc RNA named urothelial carcinoma-associated 1 (UCA1) is found in tumors such as bladder cancers and lung cancer. And the UCA1 could be as a predictive biomarker for bladder cancer in urine samples or lung cancer in plasma, respectively. In normal states, UCA1 is specifically expressed in heart of adult, indicating that UCA1 might be as a biomarker for heart diseases such as AMI. To test the speculation, we detect the level of UCA1 in plasma of AMI patients and health control using quantitative reverse transcription-polymerase chain reaction (qRT-PCR). In addition, we also test the level of miR-1 as it is reported to regulate the expression of UCA1. The results show that the level of plasma UCA1 is decreased at the early state of AMI patients and increased at day 3 after AMI. In addition, the UCA1 alteration is inversely associated with the expression of miR-1. These findings indicate that the circulating UCA1 could be used as a promising novel biomarker for the diagnosis and/or prognosis of AMI.
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198
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XIE XIAOJUAN, PAN JINGJING, WEI LIQIANG, WU SHOUZHEN, HOU HUILIAN, LI XU, CHEN WEI. Gene expression profiling of microRNAs associated with UCA1 in bladder cancer cells. Int J Oncol 2016; 48:1617-27. [DOI: 10.3892/ijo.2016.3357] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/27/2015] [Indexed: 11/06/2022] Open
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199
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Long noncoding RNA UPAT promotes colon tumorigenesis by inhibiting degradation of UHRF1. Proc Natl Acad Sci U S A 2016; 113:1273-8. [PMID: 26768845 DOI: 10.1073/pnas.1500992113] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Many long noncoding RNAs (lncRNAs) are reported to be dysregulated in human cancers and play critical roles in tumor development and progression. Furthermore, it has been reported that many lncRNAs regulate gene expression by recruiting chromatin remodeling complexes to specific genomic loci or by controlling transcriptional or posttranscriptional processes. Here we show that an lncRNA termed UPAT [ubiquitin-like plant homeodomain (PHD) and really interesting new gene (RING) finger domain-containing protein 1 (UHRF1) Protein Associated Transcript] is required for the survival and tumorigenicity of colorectal cancer cells. UPAT interacts with and stabilizes the epigenetic factor UHRF1 by interfering with its β-transducin repeat-containing protein (TrCP)-mediated ubiquitination. Furthermore, we demonstrate that UHRF1 up-regulates Stearoyl-CoA desaturase 1 and Sprouty 4, which are required for the survival of colon tumor cells. Our study provides evidence for an lncRNA that regulates protein ubiquitination and degradation and thereby plays a critical role in the survival and tumorigenicity of tumor cells. Our results suggest that UPAT and UHRF1 may be promising molecular targets for the therapy of colon cancer.
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200
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Abstract
All living organisms sense and respond to harmful changes in their intracellular and extracellular environment through complex signaling pathways that lead to changes in gene expression and cellular function in order to maintain homeostasis. Long non-coding RNAs (lncRNAs), a large and heterogeneous group of functional RNAs, play important roles in cellular response to stressful conditions. lncRNAs constitute a significant fraction of the genes differentially expressed in response to diverse stressful stimuli and, once induced, contribute to the regulation of downstream cellular processes, including feedback regulation of key stress response proteins. While many lncRNAs seem to be induced in response to a specific stress, there is significant overlap between lncRNAs induced in response to different stressful stimuli. In addition to stress-induced RNAs, several constitutively expressed lncRNAs also exert a strong regulatory impact on the stress response. Although our understanding of the contribution of lncRNAs to the cellular stress response is still highly rudimentary, the existing data point to the presence of a complex network of lncRNAs, miRNAs, and proteins in regulation of the cellular response to stress.
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Affiliation(s)
- Saba Valadkhan
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.
| | - Alberto Valencia-Hipólito
- Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
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