51
|
Zheng Q, Lin Z, Xu J, Lu Y, Meng Q, Wang C, Yang Y, Xin X, Li X, Pu H, Gui X, Li T, Xiong W, Lu D. Long noncoding RNA MEG3 suppresses liver cancer cells growth through inhibiting β-catenin by activating PKM2 and inactivating PTEN. Cell Death Dis 2018; 9:253. [PMID: 29449541 PMCID: PMC5833746 DOI: 10.1038/s41419-018-0305-7] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 01/09/2018] [Accepted: 01/11/2018] [Indexed: 12/13/2022]
Abstract
Maternally expressed gene 3 (MEG3) encodes an lncRNA which is suggested to function as a tumor suppressor and has been showed to involve in a variety of cancers. Herein, our findings demonstrate that MEG3 inhibits the malignant progression of liver cancer cells in vitro and in vivo. Mechanistically, MEG3 promotes the expression and maturition of miR122 which targets PKM2. Therefore, MEG3 decreases the expression and nuclear location of PKM2 dependent on miR122. Furthermore, MEG3 also inhibits CyclinD1 and C-Myc via PKM2 in liver cancer cells. On the other hand, MEG3 promotes β-catenin degradation through ubiquitin-proteasome system dependent on PTEN. Strikingly, MEG3 inhibits β-catenin activity through PKM2 reduction and PTEN increase. Significantly, we also found that excessive β-catenin abrogated the effect of MEG3 in liver cancer. In conclusion, our study for the first time demonstrates that MEG3 acts as a tumor suppressor by negatively regulating the activity of the PKM2 and β-catenin signaling pathway in hepatocarcinogenesis and could provide potential therapeutic targets for the treatment of liver cancer.
Collapse
Affiliation(s)
- Qidi Zheng
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Zhuojia Lin
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Jie Xu
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Yanan Lu
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Qiuyu Meng
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Chen Wang
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Yuxin Yang
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Xiaoru Xin
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Xiaonan Li
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Hu Pu
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Xin Gui
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Tianming Li
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China
| | - Wujun Xiong
- Department of Hepatology, Shanghai East Hospital, Tongji University School of Medicine, 200120, Shanghai, China
| | - Dongdong Lu
- Research Center for Translational Medicine at Shanghai East Hospital, School of Life Science and Technology, Tongji University, 200092, Shanghai, China.
| |
Collapse
|
52
|
Peng L, Yuan XQ, Liu ZY, Li WL, Zhang CY, Zhang YQ, Pan X, Chen J, Li YH, Li GC. High lncRNA H19 expression as prognostic indicator: data mining in female cancers and polling analysis in non-female cancers. Oncotarget 2018; 8:1655-1667. [PMID: 27926484 PMCID: PMC5352086 DOI: 10.18632/oncotarget.13768] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/14/2016] [Indexed: 01/02/2023] Open
Abstract
Upregulation of lncRNA H19 expression is associated with an unfavorable prognosis in some cancers. However, the prognostic value of H19 in female-specific cancers has remained uncharacterized. In this study, the prognostic power of high H19 expression in female cancer patients from the TCGA datasets was analyzed using Kaplan-Meier survival curves and Cox's proportional hazard modeling. In addition, in a meta-analysis of non-female cancer patients from TCGA datasets and 12 independent studies, hazard ratios (HRs) with 95% confidence interval (CI) for overall survival (OS) and disease-free survival (DFS)/relapse-free survival (RFS)/metastasis-free survival (MFS)/progression-free survival (PFS) were pooled to assess the prognostic value of high H19 expression. Kaplan-Meier analysis revealed that patients with uterine corpus cancer and higher H19 expression had a shorter OS (HR=2.710, p<0.05), while females with cervical cancer and increased H19 expression had a shorter RFS (HR=2.261, p<0.05). Multivariate Cox regression analysis showed that high H19 expression could independently predict a poorer prognosis in cervical cancer patients (HR=4.099, p<0.05). In the meta-analysis, patients with high H19 expression showed a poorer outcome in non-female cancer (p<0.05). These results suggest that high lncRNA H19 expression is predictive of an unfavorable prognosis in two female cancers (uterine corpus endometrioid cancer and cervical cancer) as well as in non-female cancer patients.
Collapse
Affiliation(s)
- Li Peng
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, P.R. China.,Cancer Research Institute, Central South University, Changsha 410078, P.R. China
| | - Xiao-Qing Yuan
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P.R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P.R. China.,Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P.R. China
| | - Zhao-Yang Liu
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, P.R. China.,Cancer Research Institute, Central South University, Changsha 410078, P.R. China
| | - Wen-Ling Li
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, P.R. China.,Cancer Research Institute, Central South University, Changsha 410078, P.R. China
| | - Chao-Yang Zhang
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, P.R. China.,Cancer Research Institute, Central South University, Changsha 410078, P.R. China
| | - Ya-Qin Zhang
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, P.R. China.,Cancer Research Institute, Central South University, Changsha 410078, P.R. China
| | - Xi Pan
- Department of Oncology, The third Xiangya Hospital, Central South University, Changsha 410013, P.R. China
| | - Jun Chen
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, P.R. China.,Cancer Research Institute, Central South University, Changsha 410078, P.R. China
| | - Yue-Hui Li
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, P.R. China.,Cancer Research Institute, Central South University, Changsha 410078, P.R. China
| | - Guan-Cheng Li
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha 410078, P.R. China.,Cancer Research Institute, Central South University, Changsha 410078, P.R. China
| |
Collapse
|
53
|
Yuan Z, Yu Y, Zhang B, Miao L, Wang L, Zhao K, Ji Y, Wang R, Ma H, Chen N, Yuan H. Genetic variants in lncRNA H19 are associated with the risk of oral squamous cell carcinoma in a Chinese population. Oncotarget 2018; 9:23915-23922. [PMID: 29844862 PMCID: PMC5963630 DOI: 10.18632/oncotarget.23673] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 12/13/2017] [Indexed: 12/17/2022] Open
Abstract
To evaluate whether the genetic variants in H19 influence the risk of oral squamous cell carcinoma (OSCC) in a Chinese population, a case-control study was conducted to analyze four functional single nucleotide polymorphisms (SNPs) in H19. The cohort comprised of 444 OSCC cases and 984 healthy controls, and the study further evaluated the biological effect by bioinformatics prediction and functional experiments. Two SNPs, rs217727 and rs2839701, were found to be associated with the risk of OSCC [rs217727: odds ratio (OR) = 1.32, 95% confidence interval (CI) = 1.11-1.58, P = 0.002; rs2839701: OR = 1.23, 95% CI = 1.04-1.46, P = 0.019].Bioinformatics predicted that rs2839701 C>G might alter the secondary structure of H19. In addition, rs2839701 C>G inhibited the transcription activity and was correlated with the decreased expression of downstream gene MRPL23-AS1 that was downregulated in OSCC. The current results suggested that the SNPs in H19 may play a major role in genetic susceptibility to OSCC.
Collapse
Affiliation(s)
- Zhiyao Yuan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Yang Yu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Bo Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Limin Miao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Lihua Wang
- Department of Epidemiology and Biostatistics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Keke Zhao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Yefeng Ji
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Ruixia Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Hongxia Ma
- Department of Epidemiology and Biostatistics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Ning Chen
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Hua Yuan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| |
Collapse
|
54
|
Abstract
Thousands of unique non-coding RNA (ncRNA) sequences exist within cells. Work from the past decade has altered our perception of ncRNAs from 'junk' transcriptional products to functional regulatory molecules that mediate cellular processes including chromatin remodelling, transcription, post-transcriptional modifications and signal transduction. The networks in which ncRNAs engage can influence numerous molecular targets to drive specific cell biological responses and fates. Consequently, ncRNAs act as key regulators of physiological programmes in developmental and disease contexts. Particularly relevant in cancer, ncRNAs have been identified as oncogenic drivers and tumour suppressors in every major cancer type. Thus, a deeper understanding of the complex networks of interactions that ncRNAs coordinate would provide a unique opportunity to design better therapeutic interventions.
Collapse
Affiliation(s)
- Eleni Anastasiadou
- Harvard Medical School Initiative for RNA Medicine, Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Leni S Jacob
- Harvard Medical School Initiative for RNA Medicine, Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| | - Frank J Slack
- Harvard Medical School Initiative for RNA Medicine, Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
| |
Collapse
|
55
|
miR-675-5p enhances tumorigenesis and metastasis of esophageal squamous cell carcinoma by targeting REPS2. Oncotarget 2017; 7:30730-47. [PMID: 27120794 PMCID: PMC5058713 DOI: 10.18632/oncotarget.8950] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 04/08/2016] [Indexed: 12/12/2022] Open
Abstract
Recently H19 has been demonstrated to be up-regulated in esophageal squamous cell carcinoma (ESCC) and shown to be the precursor of miR-675 that encodes miR-675-5p conservatively. miR-675 is overexpressed in many human cancers; however, the function of miR-675-5p is largely unknown in ESCC. In this study, we found that miR-675-5p expression was significantly increased in ESCC tissues and cell lines and related with ESCC progression and poor prognosis. We also showed here that down-regulation of miR-675-5p in ESCC cells dramatically induced cell G1 arrest and reduced cell proliferation, colony formation, migration and invasion in vitro as well as tumorigenesis and tumor metastasis in vivo. We subsequently identified that REPS2 was a target gene of miR-675-5p. We found that inhibition of miR-675-5p up-regulated the expression of REPS2, inhibited RalBP1/RAC1/CDC42 signaling pathway. Inversely, interference of REPS2 abrogated the effect induced by miR-675-5p inhibition, which resembled the function of miR-675-5p up-regulation. Taken together, our findings suggested that miR-675-5p might play an oncogenic role in ESCC through RalBP1/RAC1/CDC42 signaling pathway by inhibiting REPS2 and might serve as a valuable prognostic biomarker and therapeutic target for ESCC patients.
Collapse
|
56
|
Han D, Gao X, Wang M, Qiao Y, Xu Y, Yang J, Dong N, He J, Sun Q, Lv G, Xu C, Tao J, Ma N. Long noncoding RNA H19 indicates a poor prognosis of colorectal cancer and promotes tumor growth by recruiting and binding to eIF4A3. Oncotarget 2017; 7:22159-73. [PMID: 26989025 PMCID: PMC5008352 DOI: 10.18632/oncotarget.8063] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 02/23/2016] [Indexed: 02/06/2023] Open
Abstract
The overall biological role and clinical significance of long non-coding RNA H19 in colorectal cancer (CRC) remain largely unknown. Here, we firstly report that the lncRNA H19 recruits eIF4A3 and promotes the CRC cell proliferation. We observed higher expression of H19 was significantly correlated with tumor differentiation and advanced TNM stage in a cohort of 83 CRC patients. Multivariate analyses revealed that expression of H19 served as an independent predictor for overall survival and disease-free survival. Further experiments revealed that overexpression of H19 promoted the proliferation of CRC cells, while depletion of H19 inhibited cell viability and induced growth arrest. Moreover, expression profile data showed that H19 upregulated a series of cell-cycle genes. Using bioinformatics prediction and RNA immunoprecipitation assays, we identified eIF4A3 as an RNA-binding protein that binds to H19. We confirmed that combining eIF4A3 with H19 obstructed the recruitment of eIF4A3 to the cell-cycle gene mRNA. Our results suggest that H19, as a growth regulator, could serve as a candidate prognostic biomarker and target for new therapies in human CRC.
Collapse
Affiliation(s)
- Dong Han
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China.,Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Xu Gao
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China.,Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Meng Wang
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yu Qiao
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China.,Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Ya Xu
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China
| | - Jing Yang
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China
| | - Nazhen Dong
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China
| | - Jun He
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China
| | - Qian Sun
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China
| | - Guixiang Lv
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China
| | - Changqing Xu
- Department of Pathophysiology, Harbin Medical University, Harbin, China
| | - Ji Tao
- Department of Gastrointestinal Medical Oncology, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Ning Ma
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, China.,Heilongjiang Academy of Medical Sciences, Harbin, China
| |
Collapse
|
57
|
De Martino M, Palma G, Azzariti A, Arra C, Fusco A, Esposito F. The HMGA1 Pseudogene 7 Induces miR-483 and miR-675 Upregulation by Activating Egr1 through a ceRNA Mechanism. Genes (Basel) 2017; 8:genes8110330. [PMID: 29149041 PMCID: PMC5704243 DOI: 10.3390/genes8110330] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/08/2017] [Accepted: 11/09/2017] [Indexed: 02/06/2023] Open
Abstract
Several studies have established that pseudogene mRNAs can work as competing endogenous RNAs and, when deregulated, play a key role in the onset of human neoplasias. Recently, we have isolated two HMGA1 pseudogenes, HMGA1P6 and HMGA1P7. These pseudogenes have a critical role in cancer progression, acting as micro RNA (miRNA) sponges for HMGA1 and other cancer-related genes. HMGA1 pseudogenes were found overexpressed in several human carcinomas, and their expression levels positively correlate with an advanced cancer stage and a poor prognosis. In order to investigate the molecular alterations following HMGA1 pseudogene 7 overexpression, we carried out miRNA sequencing analysis on HMGA1P7 overexpressing mouse embryonic fibroblasts. Intriguingly, the most upregulated miRNAs were miR-483 and miR-675 that have been described as key regulators in cancer progression. Here, we report that HMGA1P7 upregulates miR-483 and miR-675 through a competing endogenous RNA mechanism with Egr1, a transcriptional factor that positively regulates miR-483 and miR-675 expression.
Collapse
Affiliation(s)
- Marco De Martino
- Istituto di Endocrinologia ed Oncologia Sperimentale del CNR c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Scuola di Medicina e Chirurgia di Napoli, Università degli Studi di Napoli "Federico II", via Pansini, 5, 80131 Naples, Italy.
| | - Giuseppe Palma
- Istituto Nazionale dei Tumori, Fondazione Pascale, via Mariano Semmola, 52, 80131 Naples, Italy.
| | - Amalia Azzariti
- IRCCS Istituto Tumori Giovanni Paolo II, Viale O. Flacco, 65, 70124 Bari, Italy.
| | - Claudio Arra
- Istituto Nazionale dei Tumori, Fondazione Pascale, via Mariano Semmola, 52, 80131 Naples, Italy.
| | - Alfredo Fusco
- Istituto di Endocrinologia ed Oncologia Sperimentale del CNR c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Scuola di Medicina e Chirurgia di Napoli, Università degli Studi di Napoli "Federico II", via Pansini, 5, 80131 Naples, Italy.
| | - Francesco Esposito
- Istituto di Endocrinologia ed Oncologia Sperimentale del CNR c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Scuola di Medicina e Chirurgia di Napoli, Università degli Studi di Napoli "Federico II", via Pansini, 5, 80131 Naples, Italy.
| |
Collapse
|
58
|
Peng Z, Wang J, Shan B, Yuan F, Li B, Dong Y, Peng W, Shi W, Cheng Y, Gao Y, Zhang C, Duan C. Genome-wide analyses of long noncoding RNA expression profiles in lung adenocarcinoma. Sci Rep 2017; 7:15331. [PMID: 29127420 PMCID: PMC5681506 DOI: 10.1038/s41598-017-15712-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 10/31/2017] [Indexed: 01/01/2023] Open
Abstract
LncRNAs have emerged as a novel class of critical regulators of cancer. We aimed to construct a landscape of lncRNAs and their potential target genes in lung adenocarcinoma. Genome-wide expression of lncRNAs and mRNAs was determined using microarray. qRT-PCR was performed to validate the expression of the selected lncRNAs in a cohort of 42 tumor tissues and adjacent normal tissues. R and Bioconductor were used for data analysis. A total of 3045 lncRNAs were differentially expressed between the paired tumor and normal tissues (1048 up and 1997 down). Meanwhile, our data showed that the expression NONHSAT077036 was associated with N classification and clinical stage. Further, we analyzed the potential co-regulatory relationship between the lncRNAs and their potential target genes using the ‘cis’ and ‘trans’ models. In the 25 related transcription factors (TFs), our analysis of The Cancer Genome Atlas database (TCGA) found that patients with lower expression of POU2F2 and higher expression of TRIM28 had a shorter overall survival time. The POU2F2 and TRIM28 co-expressed lncRNA landscape characterized here may shed light into normal biology and lung adenocarcinoma pathogenesis, and be valuable for discovery of biomarkers.
Collapse
Affiliation(s)
- Zhenzi Peng
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Jun Wang
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Bin Shan
- Washington State University, Elison S Floyd College of Medicine, P.O. Box 1495, Spokane, WA, 99210-1495, USA
| | - Fulai Yuan
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Bin Li
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Yeping Dong
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Wei Peng
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Wenwen Shi
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Yuanda Cheng
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Yang Gao
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Chunfang Zhang
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China
| | - Chaojun Duan
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China. .,Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, 410008, P. R. China.
| |
Collapse
|
59
|
Wei LL, Wu XJ, Gong CC, Pei DS. Egr-1 suppresses breast cancer cells proliferation by arresting cell cycle progression via down-regulating CyclinDs. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:10212-10222. [PMID: 31966355 PMCID: PMC6965751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/13/2017] [Indexed: 06/10/2023]
Abstract
Egr-1 is an important nuclear transcription factor in the early growth response gene family (Egr family). Egr-1 was reportedly involved in the tumorigenesis of diverse tumors. However, there was a paucity of data regarding the role of Egr-1 in the breast cancer. Herein, we investigated the expression of Egr-1 in breast tissues and breast cancer cell lines BT549 and Bcap37. Immunohistochemistry showed that Egr-1 was down-regulated in breast cancer tissues versus the normal paracancerous tissues. Overexpression of Egr-1 could arrest the progression of cell cycle in breast cancer cells. Luciferase reporter assay revealed Egr-1 could bind to the promoters of CyclinD1, CyclinD2 and CyclinD3. Together, these results suggested that Egr-1 could affect the cell cycle of breast cancer cells and defined the mechanism for the cells by inhibiting the process of G0/G1 phase. Our findings provide new insight into Egr-1 in breast cancer.
Collapse
Affiliation(s)
- Lu-Lu Wei
- Department of Pathology, Xuzhou Medical UniversityXuzhou 221004, China
| | - Xiao-Jin Wu
- Department of Radiation Oncology, The First People’s Hospital of XuzhouXuzhou 221002, China
| | - Chan-Chan Gong
- Department of Pathology, Xuzhou Medical UniversityXuzhou 221004, China
| | - Dong-Sheng Pei
- Department of Pathology, Xuzhou Medical UniversityXuzhou 221004, China
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical UniversityXuzhou 221002, China
| |
Collapse
|
60
|
MicroRNA-675 promotes glioma cell proliferation and motility by negatively regulating retinoblastoma 1. Hum Pathol 2017; 69:63-71. [PMID: 28970140 DOI: 10.1016/j.humpath.2017.09.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 09/17/2017] [Accepted: 09/22/2017] [Indexed: 12/14/2022]
Abstract
Previous studies indicated that microRNA (miR)-675 and its precursor lncRNA H19 were both overexpressed in glioma tissues, and H19 might play an oncogenic role. To investigate the involvement of miR-675 in gliomas and its underlying mechanisms, we here collected candidate target genes of miR-675-5p from miRTarBase (http://mirtarbase.mbc.nctu.edu.tw/, Release 6.0), which contains the experimentally validated microRNA-target interactions. Then, regulatory effects of miR-675 on its target genes were validated using clinical samples and glioma cell lines. Involvement of the miR-675-target axis deregulation in cell proliferation, migration and invasion of glioma was demonstrated by both gain- and loss-of-function experiments. As a result, retinoblastoma 1 (RB1) was identified as a candidate target gene of miR-675-5p. Expression levels of miR-675-5p in glioma tissues and cells were negatively correlated with RB1 expression at both mRNA and protein levels. Importantly, deregulation of the miR-675-5p-RB1 axis was significantly associated with advanced World Health Organization (WHO) grade and low Karnofsky performance score (KPS) score of glioma patients. Luciferase reporter assay verified that RB1 was a direct target gene of miR-675 in glioma cells. Functionally, miR-675 promoted glioma cell proliferation, migration and invasion. Notably, simulation of RB1 antagonized the effects induced by miR-675 up-regulation in glioma cells. In conclusion, our data suggest that miR-675 may be a key negative regulator of RB1 and the imbalance of the miR-675-RB1 axis may be clinically associated with aggressive progression of glioma patients. In addition, miR-675 may act as an oncogenic miRNA in glioma cells via regulating its target gene RB1.
Collapse
|
61
|
Niu ZS, Niu XJ, Wang WH. Long non-coding RNAs in hepatocellular carcinoma: Potential roles and clinical implications. World J Gastroenterol 2017; 23:5860-5874. [PMID: 28932078 PMCID: PMC5583571 DOI: 10.3748/wjg.v23.i32.5860] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 05/10/2017] [Accepted: 07/24/2017] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are a subgroup of non-coding RNA transcripts greater than 200 nucleotides in length with little or no protein-coding potential. Emerging evidence indicates that lncRNAs may play important regulatory roles in the pathogenesis and progression of human cancers, including hepatocellular carcinoma (HCC). Certain lncRNAs may be used as diagnostic or prognostic markers for HCC, a serious malignancy with increasing morbidity and high mortality rates worldwide. Therefore, elucidating the functional roles of lncRNAs in tumors can contribute to a better understanding of the molecular mechanisms of HCC and may help in developing novel therapeutic targets. In this review, we summarize the recent progress regarding the functional roles of lncRNAs in HCC and explore their clinical implications as diagnostic or prognostic biomarkers and molecular therapeutic targets for HCC.
Collapse
MESH Headings
- Antineoplastic Agents/therapeutic use
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinogenesis/genetics
- Carcinoma, Hepatocellular/diagnosis
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/mortality
- Disease Progression
- Early Detection of Cancer/methods
- Epigenesis, Genetic
- Gene Expression Regulation, Neoplastic
- Humans
- Liver Neoplasms/diagnosis
- Liver Neoplasms/drug therapy
- Liver Neoplasms/genetics
- Liver Neoplasms/mortality
- Molecular Targeted Therapy/methods
- Prognosis
- RNA, Long Noncoding/analysis
- RNA, Long Noncoding/antagonists & inhibitors
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
Collapse
Affiliation(s)
- Zhao-Shan Niu
- Laboratory of Micromorphology, School of Basic Medicine, Medical Department of Qingdao University, Qingdao 266071, Shandong Province, China
| | - Xiao-Jun Niu
- Oncology Specialty, Medical Department of Qingdao University, Qingdao 266071, Shandong Province, China
| | - Wen-Hong Wang
- Department of Pathology, School of Basic Medicine, Medical Department of Qingdao University, Qingdao 266071, Shandong Province, China
| |
Collapse
|
62
|
Yu J, Liu Y, Gong Z, Zhang S, Guo C, Li X, Tang Y, Yang L, He Y, Wei F, Wang Y, Liao Q, Zhang W, Li X, Li Y, Li G, Xiong W, Zeng Z. Overexpression long non-coding RNA LINC00673 is associated with poor prognosis and promotes invasion and metastasis in tongue squamous cell carcinoma. Oncotarget 2017; 8:16621-16632. [PMID: 28039470 PMCID: PMC5369989 DOI: 10.18632/oncotarget.14200] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 11/21/2016] [Indexed: 12/23/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) associated with the tumorigenesis of human cancers. However, the relevance of lncRNAs in tongue squamous cell carcinoma (TSCC) is still unclear. To discover novel TSCC-related lncRNAs, we analyzed the lncRNA expression patterns in two sets of TSCC gene expression profile data, and found that long intergenic non-coding RNA 673 (LINC00673) was significantly upregulated in TSCC samples. Then we examined LINC00673 expression in 202 TSCC tissue specimens, LINC00673 is highly expressed in a significant proportion of human TSCC biopsies and correlates with poor prognosis. Knockdown LINC00673 significantly inhibited the cell invasion and migration capability in TSCC cells. Our findings suggest that LINC00673 may play an essential role in TSCC progression and might serve as a potential biomarker for early detection and prognosis prediction of TSCC.
Collapse
Affiliation(s)
- Jianjun Yu
- Department of Head and Neck Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yan Liu
- Department of Head and Neck Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Zhaojian Gong
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Stomatolog, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shanshan Zhang
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Can Guo
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Xiayu Li
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanyan Tang
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Liting Yang
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yi He
- Department of Head and Neck Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Fang Wei
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yumin Wang
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qianjin Liao
- Department of Head and Neck Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Wenling Zhang
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Xiaoling Li
- Department of Head and Neck Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yong Li
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China.,Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Guiyuan Li
- Department of Head and Neck Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wei Xiong
- Department of Head and Neck Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhaoyang Zeng
- Department of Head and Neck Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Cancer Research Institute, Central South University, Changsha, Hunan, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
63
|
Fan C, Tang Y, Wang J, Xiong F, Guo C, Wang Y, Zhang S, Gong Z, Wei F, Yang L, He Y, Zhou M, Li X, Li G, Xiong W, Zeng Z. Role of long non-coding RNAs in glucose metabolism in cancer. Mol Cancer 2017; 16:130. [PMID: 28738810 PMCID: PMC5525357 DOI: 10.1186/s12943-017-0699-3] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 07/11/2017] [Indexed: 02/06/2023] Open
Abstract
Long-noncoding RNAs (lncRNAs) are a group of transcripts that are longer than 200 nucleotides and do not code for proteins. However, this class of RNAs plays pivotal regulatory roles. The mechanism of their action is highly complex. Mounting evidence shows that lncRNAs can regulate cancer onset and progression in a variety of ways. They can not only regulate cancer cell proliferation, differentiation, invasion and metastasis, but can also regulate glucose metabolism in cancer cells through different ways, such as by directly regulating the glycolytic enzymes and glucose transporters (GLUTs), or indirectly modulating the signaling pathways. In this review, we summarized the role of lncRNAs in regulating glucose metabolism in cancer, which will help understand better the pathogenesis of malignant tumors. The understanding of the role of lncRNAs in glucose metabolism may help provide new therapeutic targets and novel diagnostic and prognosis markers for human cancer.
Collapse
Affiliation(s)
- Chunmei Fan
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanyan Tang
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Jinpeng Wang
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Fang Xiong
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Can Guo
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yumin Wang
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Shanshan Zhang
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhaojian Gong
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Fang Wei
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Liting Yang
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yi He
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Ming Zhou
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoling Li
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guiyuan Li
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wei Xiong
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China.
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China.
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Zhaoyang Zeng
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, Hunan, China.
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China.
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Disease Genome Research Center, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
| |
Collapse
|
64
|
Lan T, Yan X, Li Z, Xu X, Mao Q, Ma W, Hong Z, Chen X, Yuan Y. Long non-coding RNA PVT1 serves as a competing endogenous RNA for miR-186-5p to promote the tumorigenesis and metastasis of hepatocellular carcinoma. Tumour Biol 2017; 39:1010428317705338. [PMID: 28656879 DOI: 10.1177/1010428317705338] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Hepatocellular carcinoma is third leading cause of cancer-related death globally. Long non-coding RNA plasmacytoma variant translocation 1 has been reported to be dysregulated and plays a crucial role in various cancers. In this study, we investigated the interactions between plasmacytoma variant translocation 1 and miR-186-5p in the progression of hepatocellular carcinoma and explored the functional significance of plasmacytoma variant translocation 1. It was determined that plasmacytoma variant translocation 1 was significantly higher, while miR-186-5p was statistically lower in the hepatocellular carcinoma tissues than that in the adjacent normal tissues. Using gain-of-function and loss-of-function methods, our results revealed that plasmacytoma variant translocation 1 affected hepatocellular carcinoma cells proliferation, invasion, and migration. It was found that there was direct interaction between miR-186-5p and the binding site of plasmacytoma variant translocation 1 by performing dual-luciferase assay and RNA immunoprecipitation assay. Furthermore, it was identified that plasmacytoma variant translocation 1 regulated the expression of the miR-186-5p target gene, yes-associated protein 1. Taken together, plasmacytoma variant translocation 1 served as an endogenous sponge for miR-186-5p to reduce its inhibiting effect on yes-associated protein 1 and thus promoted the tumorigenesis of hepatocellular carcinoma.
Collapse
Affiliation(s)
- Tian Lan
- 1 Department of Hepatobiliary Surgery, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| | - Xia Yan
- 2 Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| | - Zhuo Li
- 3 Department of Pediatric Surgery, People's Hospital of Nanshan District, Shenzhen, P.R. China
| | - Xin Xu
- 4 Department of Digestion, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| | - Qi Mao
- 5 Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| | - Weijie Ma
- 1 Department of Hepatobiliary Surgery, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| | - Zhenfei Hong
- 1 Department of Hepatobiliary Surgery, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| | - Xi Chen
- 1 Department of Hepatobiliary Surgery, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| | - Yufeng Yuan
- 1 Department of Hepatobiliary Surgery, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| |
Collapse
|
65
|
Gan Y, Han N, He X, Yu J, Zhang M, Zhou Y, Liang H, Deng J, Zheng Y, Ge W, Long Z, Xu X. Long non-coding RNA CASC2 regulates cell biological behaviour through the MAPK signalling pathway in hepatocellular carcinoma. Tumour Biol 2017. [PMID: 28621238 DOI: 10.1177/1010428317706229] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Yuanyuan Gan
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Nana Han
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoqin He
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jiajun Yu
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Meixia Zhang
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yujie Zhou
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Huiling Liang
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Junjian Deng
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yongfa Zheng
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wei Ge
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhixiong Long
- Department of Oncology, The Fifth People’s Hospital, Wuhan, China
| | - Ximing Xu
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| |
Collapse
|
66
|
HTLV-1 Tax upregulates early growth response protein 1 through nuclear factor-κB signaling. Oncotarget 2017; 8:51123-51133. [PMID: 28881635 PMCID: PMC5584236 DOI: 10.18632/oncotarget.17699] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 02/20/2017] [Indexed: 11/25/2022] Open
Abstract
Human T cell leukemia virus type 1 (HTLV-1) is a complex retrovirus that causes adult T cell leukemia (ATL) in susceptible individuals. The HTLV-1-encoded oncoprotein Tax induces persistent activation of the nuclear factor-κB (NF-κB) pathway. Early growth response protein 1 (EGR1) is overexpressed in HTLV-1-infected T cell lines and ATL cells. Here, we showed that both Tax expression and HTLV-1 infection promoted EGR1 overexpression. Loss of the NF-κB binding site in the EGR1 promotor or inhibition of NF-κB activation reduced Tax-induced EGR1 upregulation. Tax mutants unable to activate NF-κB induced only slight EGR1 upregulation as compared with wild-type Tax, confirming NF-κB pathway involvement in EGR1 regulation. Tax also directly interacted with the EGR1 protein and increased endogenous EGR1 stability. Elevated EGR1 in turn promoted p65 nuclear translocation and increased NF-κB activation. These results demonstrate a positive feedback loop between EGR1 expression and NF-κB activation in HTLV-1-infected and Tax-expressing cells. Both NF-κB activation and Tax-induced EGR1 stability upregulated EGR1, which in turn enhanced constitutive NF-κB activation and facilitated ATL progression in HTLV-1-infected cells. These findings suggest EGR1 may be an effective anti-ATL therapeutic target.
Collapse
|
67
|
Pope C, Mishra S, Russell J, Zhou Q, Zhong XB. Targeting H19, an Imprinted Long Non-Coding RNA, in Hepatic Functions and Liver Diseases. Diseases 2017; 5:E11. [PMID: 28933364 PMCID: PMC5456333 DOI: 10.3390/diseases5010011] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/03/2017] [Indexed: 12/17/2022] Open
Abstract
H19 is a long non-coding RNA regulated by genomic imprinting through methylation at the locus between H19 and IGF2. H19 is important in normal liver development, controlling proliferation and impacting genes involved in an important network controlling fetal development. H19 also plays a major role in disease progression, particularly in hepatocellular carcinoma. H19 participates in the epigenetic regulation of many processes impacting diseases, such as activating the miR-200 pathway by histone acetylation to inhibit the epithelial-mesenchymal transition to suppress tumor metastasis. Furthermore, H19's normal regulation is disturbed in diseases, such as hepatocellular carcinoma. In this disease, aberrant epigenetic maintenance results in biallelic expression of IGF2, leading to uncontrolled cellular proliferation. This review aims to further research utilizing H19 for drug discovery and the treatment of liver diseases by focusing on both the epigenetic regulation of H19 and how H19 regulates normal liver functions and diseases, particularly by epigenetic mechanisms.
Collapse
Affiliation(s)
- Chad Pope
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, 69 N Eagleville Road, Storrs, CT 06269, USA.
| | - Shashank Mishra
- Department of Physiology and Neurobiology, University of Connecticut, 75 N Eagleville Road, Storrs, CT 06269, USA.
| | - Joshua Russell
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, 69 N Eagleville Road, Storrs, CT 06269, USA.
| | - Qingqing Zhou
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, 69 N Eagleville Road, Storrs, CT 06269, USA.
| | - Xiao-Bo Zhong
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, 69 N Eagleville Road, Storrs, CT 06269, USA.
| |
Collapse
|
68
|
Duclot F, Kabbaj M. The Role of Early Growth Response 1 (EGR1) in Brain Plasticity and Neuropsychiatric Disorders. Front Behav Neurosci 2017; 11:35. [PMID: 28321184 PMCID: PMC5337695 DOI: 10.3389/fnbeh.2017.00035] [Citation(s) in RCA: 216] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 02/21/2017] [Indexed: 12/11/2022] Open
Abstract
It is now clearly established that complex interactions between genes and environment are involved in multiple aspects of neuropsychiatric disorders, from determining an individual's vulnerability to onset, to influencing its response to therapeutic intervention. In this perspective, it appears crucial to better understand how the organism reacts to environmental stimuli and provide a coordinated and adapted response. In the central nervous system, neuronal plasticity and neurotransmission are among the major processes integrating such complex interactions between genes and environmental stimuli. In particular, immediate early genes (IEGs) are critical components of these interactions as they provide the molecular framework for a rapid and dynamic response to neuronal activity while opening the possibility for a lasting and sustained adaptation through regulation of the expression of a wide range of genes. As a result, IEGs have been tightly associated with neuronal activity as well as a variety of higher order processes within the central nervous system such as learning, memory and sensitivity to reward. The immediate early gene and transcription factor early growth response 1 (EGR1) has thus been revealed as a major mediator and regulator of synaptic plasticity and neuronal activity in both physiological and pathological conditions. In this review article, we will focus on the role of EGR1 in the central nervous system. First, we will summarize the different factors influencing its activity. Then, we will analyze the amount of data, including genome-wide, that has emerged in the recent years describing the wide variety of genes, pathways and biological functions regulated directly or indirectly by EGR1. We will thus be able to gain better insights into the mechanisms underlying EGR1's functions in physiological neuronal activity. Finally, we will discuss and illustrate the role of EGR1 in pathological states with a particular interest in cognitive functions and neuropsychiatric disorders.
Collapse
Affiliation(s)
- Florian Duclot
- Department of Biomedical Sciences, Florida State UniversityTallahassee, FL, USA; Program in Neuroscience, Florida State UniversityTallahassee, FL, USA
| | - Mohamed Kabbaj
- Department of Biomedical Sciences, Florida State UniversityTallahassee, FL, USA; Program in Neuroscience, Florida State UniversityTallahassee, FL, USA
| |
Collapse
|
69
|
Lan T, Ma W, Hong Z, Wu L, Chen X, Yuan Y. Long non-coding RNA small nucleolar RNA host gene 12 (SNHG12) promotes tumorigenesis and metastasis by targeting miR-199a/b-5p in hepatocellular carcinoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:11. [PMID: 28073380 PMCID: PMC5223416 DOI: 10.1186/s13046-016-0486-9] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 12/28/2016] [Indexed: 12/30/2022]
Abstract
Background Hepatocellular carcinoma (HCC) is third leading cause of cancer-related death globally. Evidence suggest that long non-coding RNAs (lncRNAs) have emerged as key regulators of tumorigenesis and metastasis in HCC. In this study, we investigated the functional significance of SNHG12 and explored whether SNHG12 can directly interact with miR-199a/b-5p in the progression of HCC. Methods We determined the expression level of SNHG12 in HCC tissues with quantitative real-time PCR and then studied its clinical significance. The binding site between SNHG12 and miR-199a/b-5p was confirmed using dual luciferase assay and RNA immunoprecipitation (RIP) assay. SNHG12 was silenced through the siRNA transfection to determine whether SNHG12-siRNA is able to affect cell proliferation, invasion and metastasis. Results SNHG12 was significantly higher in the HCC tissues than that in the adjacent normal tissues. There were direct interactions between miR-199a/b-5p and the binding site of SNHG12. SNHG12 functioned as an endogenous sponge for miR-199a/b-5p to regulate the expression of MLK3 and affect the NF-κB pathway. Conclusion SNHG12 may serve as a valuable biomarker and a potential therapeutic target for HCC.
Collapse
Affiliation(s)
- Tian Lan
- Department of Hepatobiliary surgery, Zhongnan Hospital of Wuhan University, No. 169 of Donghu Road, Wuhan, Hubei, 430071, People's Republic of China
| | - Weijie Ma
- Department of Hepatobiliary surgery, Zhongnan Hospital of Wuhan University, No. 169 of Donghu Road, Wuhan, Hubei, 430071, People's Republic of China
| | - Zhenfei Hong
- Department of Hepatobiliary surgery, Zhongnan Hospital of Wuhan University, No. 169 of Donghu Road, Wuhan, Hubei, 430071, People's Republic of China
| | - Long Wu
- Department of Hepatobiliary surgery, Zhongnan Hospital of Wuhan University, No. 169 of Donghu Road, Wuhan, Hubei, 430071, People's Republic of China
| | - Xi Chen
- Department of Hepatobiliary surgery, Zhongnan Hospital of Wuhan University, No. 169 of Donghu Road, Wuhan, Hubei, 430071, People's Republic of China
| | - Yufeng Yuan
- Department of Hepatobiliary surgery, Zhongnan Hospital of Wuhan University, No. 169 of Donghu Road, Wuhan, Hubei, 430071, People's Republic of China.
| |
Collapse
|
70
|
Inflammatory cytokine IL6 cooperates with CUDR to aggravate hepatocyte-like stem cells malignant transformation through NF-κB signaling. Sci Rep 2016; 6:36843. [PMID: 27833137 PMCID: PMC5104983 DOI: 10.1038/srep36843] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 10/20/2016] [Indexed: 12/26/2022] Open
Abstract
Inflammatory cytokines and lncRNAs are closely associated with tumorigenesis. Herein, we reveal inflammatory cytokines IL6 cooperates with long noncoding RNA CUDR to trigger the malignant transformation of human embryonic stem cells-derived hepatocyte-like stem cells. Mechanistically, IL6 cooperates with CUDR to cause MELLT3 to interact with SUV39h1 mRNA3′UTR and promote SUV39h1 expression. Moreover, the excessive SUV39h1 also increases tri-methylation of histone H3 on nineth lysine (H3K9me3). Intriguingly, under inflammatory conditions, H3K9me3 promotes the excessive expression and phosphorylation of NF-κB, and in turn, phorsphorylated NF-κB promotes the expression and phosphorylation of Stat3. Furthermore, that the phosphorylated Stat3 loads onto the promoter region of miRs and lncRNAs. Ultimately, the abnormal expression of miRs and lncRNAs increased telomerase activity, telomere length and microsatellite instability (MSI), leading to malignant transformation of hepatocyte-like stem cells.
Collapse
|
71
|
HULC cooperates with MALAT1 to aggravate liver cancer stem cells growth through telomere repeat-binding factor 2. Sci Rep 2016; 6:36045. [PMID: 27782152 PMCID: PMC5080550 DOI: 10.1038/srep36045] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 09/26/2016] [Indexed: 12/29/2022] Open
Abstract
The dysregulation of lncRNAs has increasingly been linked to many human diseases, especially in cancers. Our results demonstrate HULC, MALAT1 and TRF2 are highly expressed in human hepatocellular carcinoma tissues, and HULC plus MALAT1 overexpression drastically promotes the growth of liver cancer stem cells. Mechanistically, both HULC and MALAT1 overexpression enhanced RNA polII, P300, CREPT to load on the promoter region of telomere repeat-binding factor 2(TRF2), triggering the overexpression, phosphorylation and SUMOylation of TRF2. Strikingly, the excessive TRF2 interacts with HULC or MALAT1 to form the complex that loads on the telomeric region, replacing the CST/AAF and recruiting POT1, pPOT1, ExoI, SNM1B, HP1 α. Accordingly, the telomere is greatly protected and enlonged. Furthermore, the excessive HULC plus MALAT1 reduced the methylation of the TERC promoter dependent on TRF2, increasing the TERC expression that causes the increase of interplay between TRET and TERC. Ultimately, the interaction between RFC and PCNA or between CDK2 and CyclinE, the telomerase activity and the microsatellite instability (MSI) are significantly increased in the liver cancer stem cells. Our demonstrations suggest that haploinsufficiency of HULC/MALAT1 plays an important role in malignant growth of liver cancer stem cell.
Collapse
|
72
|
Wu M, An J, Zheng Q, Xin X, Lin Z, Li X, Li H, Lu D. Double mutant P53 (N340Q/L344R) promotes hepatocarcinogenesis through upregulation of Pim1 mediated by PKM2 and LncRNA CUDR. Oncotarget 2016; 7:66525-66539. [PMID: 27167190 PMCID: PMC5341818 DOI: 10.18632/oncotarget.9089] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 04/17/2016] [Indexed: 12/12/2022] Open
Abstract
P53 is frequently mutated in human tumors as a novel gain-of-function to promote tumor development. Although dimeric (M340Q/L344R) influences on tetramerisation on site-specific post-translational modifications of p53, it is not clear how dimeric (M340Q/L344R) plays a role during hepatocarcinogenesis. Herein, we reveal that P53 (N340Q/L344R) promotes hepatocarcinogenesis through upregulation of PKM2. Mechanistically, P53 (N340Q/L344R) forms complex with CUDR and the complex binds to the promoter regions of PKM2 which enhances the expression, phosphorylation of PKM2 and its polymer formation. Thereby, the polymer PKM2 (tetramer) binds to the eleventh threonine on histone H3 that increases the phosphorylation of the eleventh threonine on histone H3 (pH3T11). Furthermore, pH3T11 blocks HDAC3 binding to H3K9Ac that prevents H3K9Ac from deacetylation and stabilizes the H3K9Ac modification. On the other hand, it also decreased tri-methylation of histone H3 on the ninth lysine (H3K9me3) and increases one methylation of histone H3 on the ninth lysine (H3K9me1). Moreover, the combination of H3K9me1 and HP1 α forms more H3K9me3-HP1α complex which binds to the promoter region of Pim1, enhancing the expression of Pim1 that enhances the expression of TERT, oncogenic lncRNA HOTAIR and reduces the TERRA expression. Ultimately, P53 (N340Q/L344R) accerlerates the growth of liver cancer cells Hep3B by activating telomerase and prolonging telomere through the cascade of P53 (N340Q/L344R)-CUDR-PKM2-pH3T11- (H3K9me1-HP1α)-Pim1- (TERT-HOTAIR-TERRA). Understanding the novel functions of P53 (N340Q/L344R) will help in the development of new liver cancer therapeutic approaches that may be useful in a broad range of cancer types.
Collapse
Affiliation(s)
- Mengying Wu
- School of Life Science and Technology, Tongji University, Shanghai, 200092, China
| | - Jiahui An
- School of Life Science and Technology, Tongji University, Shanghai, 200092, China
| | - Qidi Zheng
- School of Life Science and Technology, Tongji University, Shanghai, 200092, China
| | - Xiaoru Xin
- School of Life Science and Technology, Tongji University, Shanghai, 200092, China
| | - Zhuojia Lin
- School of Life Science and Technology, Tongji University, Shanghai, 200092, China
| | - Xiaonan Li
- School of Life Science and Technology, Tongji University, Shanghai, 200092, China
| | - Haiyan Li
- School of Life Science and Technology, Tongji University, Shanghai, 200092, China
| | - Dongdong Lu
- School of Life Science and Technology, Tongji University, Shanghai, 200092, China
| |
Collapse
|
73
|
Fu M, Zou C, Pan L, Liang W, Qian H, Xu W, Jiang P, Zhang X. Long noncoding RNAs in digestive system cancers: Functional roles, molecular mechanisms, and clinical implications (Review). Oncol Rep 2016; 36:1207-18. [PMID: 27431376 DOI: 10.3892/or.2016.4929] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 07/04/2016] [Indexed: 01/24/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) are emerging as new players in various diseases including cancer. LncRNAs have been shown to play multifaceted roles in the development, progression, and metastasis of cancer. In this review, we highlight the lncRNAs that are critically involved in the pathogenesis of digestive system cancers (DSCs). We summarize the roles of the lncRNAs in DSCs and the underlying mechanisms responsible for their functions. The DSC-associated lncRNAs interact with a wide spectrum of molecules to regulate gene expression at transcriptional, post-transcriptional, and translational levels. We also provide new insights into the clinical significance of these lncRNAs, which are found to be closely associated with the aggressiveness of DSCs and could predict the prognosis of DSC patients. Moreover, lncRNAs have been suggested as promising therapeutic targets in DSCs. Therefore, better understanding of the functional roles of lncRNAs will provide new biomarkers for DSC diagnosis, prognosis, and therapy.
Collapse
Affiliation(s)
- Min Fu
- Department of General Surgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Chen Zou
- Department of General Surgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Lei Pan
- Department of General Surgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Wei Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Pengcheng Jiang
- Department of General Surgery, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Xu Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| |
Collapse
|
74
|
Insight Into the Role of Long Noncoding RNA in Cancer Development and Progression. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 326:33-65. [PMID: 27572126 DOI: 10.1016/bs.ircmb.2016.04.001] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Long noncoding RNA (LncRNA) is a large class of RNA molecules with size larger than 200 nucleotides. They exhibit cellular functions although having no protein-coding capability. Accumulating evidence suggests that long noncoding RNA play crucial roles in cancer biology. Studies showed that deregulation of lncRNA was frequently observed in various types of cancers which contributed heavily to malignant phenotypical changes. Aberration of lncRNA can be induced by a number of factors such as dysregulated signaling pathway, response to catastrophic effect, viral infection, and contact with carcinogens. Meanwhile, alterations of lncRNA expression or function drive subsequent malignant development such as cell transformation or acquisition of stemness characteristics. Here, we give perspectives on recent findings on the involvement of lncRNAs in carcinogenesis and response to adverse tumor environment. Then, we discuss the role of lncRNAs in cancer stem cell which is an important model of cancer emergence. Last, we provide insight on the potential of lncRNAs in modulating environment favorable of cancer development and progression, and evaluate the diagnostic and prognostic value of lncRNAs in cancer management.
Collapse
|
75
|
Liu L, Yang J, Zhu X, Li D, Lv Z, Zhang X. Long noncoding RNA H19 competitively binds miR-17-5p to regulate YES1 expression in thyroid cancer. FEBS J 2016; 283:2326-39. [PMID: 27093644 DOI: 10.1111/febs.13741] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 02/26/2016] [Accepted: 04/18/2016] [Indexed: 12/29/2022]
Abstract
The long noncoding RNA H19 is overexpressed in many cancers and acts as an oncogene. Here, we investigated the role of H19 in thyroid carcinogenesis and its relation to microRNA miR-17-5p and its target gene YES1. H19 expression was higher in tumor samples and in thyroid cancer cell lines than nontumor tissues and normal thyroid cells. H19 knockdown and ectopic expression in the TPC-1 and NIM thyroid cancer cell lines showed that overexpression of H19 promoted proliferation, migration, and invasion, whereas H19 knockdown reduced cell viability and invasion and induced growth arrest in vitro and in vivo. H19 was identified as a target of miR-17-5p, by Dual-Luciferase Reporter assays and RNA-binding protein immunoprecipitation assays. H19 antagonized the function of miR-17-5p on upregulation of its target YES1 and inhibited miR-17-5p-induced cell cycle progression. Our results suggest that H19 functions as a competitive endogenous RNA (ceRNA) by acting as a sink for miR-17-5p, revealing a potential ceRNA regulatory network involving H19 and miR-17-5p with a role in the modulation of YES1 expression. This mechanism may contribute to a better understanding of thyroid cancer pathogenesis and provide new insights into the treatment of this disease.
Collapse
Affiliation(s)
- Lin Liu
- Department of Nuclear Medicine, Shanghai Tenth people's hospital, Tongji university, Shanghai, China.,Department of institution of Interventional and Vascular surgery, Tongji university, Shanghai, China
| | - Jian Yang
- Department of Nuclear Medicine, Changhai hospital, The Second Military Medical University, Shanghai, China
| | - Xuchao Zhu
- Department of Nuclear Medicine, Shanghai Tenth people's hospital, Tongji university, Shanghai, China
| | - Dan Li
- Department of Nuclear Medicine, Shanghai Tenth people's hospital, Tongji university, Shanghai, China
| | - Zhongwei Lv
- Department of Nuclear Medicine, Shanghai Tenth people's hospital, Tongji university, Shanghai, China
| | - Xiaoping Zhang
- Department of Nuclear Medicine, Shanghai Tenth people's hospital, Tongji university, Shanghai, China.,Department of institution of Interventional and Vascular surgery, Tongji university, Shanghai, China
| |
Collapse
|
76
|
Wang J, Sun J, Wang J, Song Y, Gao P, Shi J, Chen P, Wang Z. Long noncoding RNAs in gastric cancer: functions and clinical applications. Onco Targets Ther 2016; 9:681-97. [PMID: 26929639 PMCID: PMC4755433 DOI: 10.2147/ott.s95412] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Over the last two decades, genome-wide studies have revealed that only a small fraction of the human genome encodes proteins; long noncoding RNAs (lncRNAs) account for 98% of the total genome. These RNA molecules, which are >200 nt in length, play important roles in diverse biological processes, including the immune response, stem cell pluripotency, cell proliferation, apoptosis, differentiation, invasion, and metastasis by regulating gene expression at the epigenetic, transcriptional, and posttranscriptional levels. However, the detailed molecular mechanisms underlying lncRNA function are only partially understood. Recent studies showed that many lncRNAs are aberrantly expressed in gastric cancer (GC) tissues, gastric juice, plasma, and cells, and these alterations are linked to the occurrence, progression, and outcome of GC. Here, we review the current knowledge of the biological functions and clinical aspects of lncRNAs in GC.
Collapse
Affiliation(s)
- Jiajun Wang
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jingxu Sun
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jun Wang
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yongxi Song
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Peng Gao
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jinxin Shi
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ping Chen
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Zhenning Wang
- Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, People's Republic of China
| |
Collapse
|
77
|
Guan GF, Zhang DJ, Wen LJ, Xin D, Liu Y, Yu DJ, Su K, Zhu L, Guo YY, Wang K. Overexpression of lncRNA H19/miR-675 promotes tumorigenesis in head and neck squamous cell carcinoma. Int J Med Sci 2016; 13:914-922. [PMID: 27994496 PMCID: PMC5165684 DOI: 10.7150/ijms.16571] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 10/07/2016] [Indexed: 02/07/2023] Open
Abstract
There is accumulating evidence indicating that long non-coding RNA H19 and its mature product miR-675 play essential roles for tumor growth and progression. However, their prognostic value in human head and neck squamous cell carcinoma (HNSCC), particular in laryngeal carcinoma, remains to be elucidated. In this study, we observed that both H19 and miR-675 were significantly overexpressed in a cohort of 65 primary tumor samples and two HNSCC cell lines. Importantly, when paired with patient follow-up data, higher expression of either H19 or miR-675 was significantly correlated with higher risk of patient relapse, and associated with worse overall survival and poor disease-free survival. Knockdown miR-675 caused significant reduction of cell viability, migratory and invasive capabilities. Taken together, these results suggest that the strong correlation of H19 overexpression together with higher miR-675 and lymph node metastases could be useful predictive markers, indicating a potentially therapeutic strategy for HNSCC patients.
Collapse
Affiliation(s)
- Guo-Fang Guan
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - De-Jun Zhang
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Lian-Ji Wen
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Ding Xin
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Yan Liu
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Duo-Jiao Yu
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Kai Su
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Lin Zhu
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Ying-Yuan Guo
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Ke Wang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun 130041, P. R. China
| |
Collapse
|
78
|
Li Z, Yu X, Shen J. Long non-coding RNAs: emerging players in osteosarcoma. Tumour Biol 2015; 37:2811-6. [PMID: 26718212 DOI: 10.1007/s13277-015-4749-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 12/27/2015] [Indexed: 01/17/2023] Open
Abstract
Osteosarcoma is the most common kind of primary bone tumors with high morbidity in infants and adolescents. While the molecular mechanism of osteosarcoma has gained considerable attention, the mechanisms underlying its initiation and progression remain unclear. Recent studies have discovered that long non-coding RNAs (lncRNAs) play an important role in multiply biological processes including cell development, differentiation, proliferation, invasion, and migration. Deregulated expression of lncRNAs has been found in cancers including osteosarcoma. This review summarized the deregulation and functional role of lncRNAs in osteosarcoma and their potential application for diagnosis and treatment of osteosarcoma.
Collapse
Affiliation(s)
- Zheng Li
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xin Yu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Jianxiong Shen
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
| |
Collapse
|