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Qiu CJ, Hu LY, Yang J, Cao JJ, Pei BG, Dai RR, Pan SJ. A novel nanoplatform-based circCSNK1G3 affects CBX7 protein and promotes glioma cell growth. Int J Biol Macromol 2024; 276:134025. [PMID: 39033888 DOI: 10.1016/j.ijbiomac.2024.134025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/09/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Bioenvironmental and biological factors have the potential to contribute to the development of glioma, a type of brain tumor. Recent studies have suggested that a unique circular RNA called circCSNK1G3 could play a role in promoting the growth of glioma cells. It does this by stabilizing a specific microRNA called miR-181 and reducing the expression of a tumor-suppressor gene known as chromobox protein homolog 7 (CBX7). To further investigate circCSNK1G3 and its effects on glioma, we utilized a nanoplatform called adeno-associated virus (AAV)-RNAi.To explore the functional implications of circCSNK1G3, we employed siRNA to silence its expression. Along with these effects, the silencing of circCSNK1G3 led to a depletion of miR-181d and an upregulation of CBX7. When we introduced miR-181d mimics, which artificially increase the levels of miR-181d, the anti-glioma cell activity induced by circCSNK1G3 siRNA was almost completely reversed. Conversely, inhibiting miR-181d mimicked the effects of circCSNK1G3 silencing. Moreover, when we overexpressed circCSNK1G3 in glioma cells, we observed an elevation of miR-181d and a depletion of CBX7. We found that the growth of A172 xenografts (tumors) carrying circCSNK1G3 shRNA was significantly inhibited. In these xenograft tissues, we detected a depletion of circCSNK1G3 and miR-181d, as well as an upregulation of CBX7.
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Affiliation(s)
- Cheng-Jie Qiu
- Department of Neurosurgery, Rui-Jin Hospital, Shanghai Jiao-Tong University, School of Medicine, Shanghai, China
| | - Liang-Yun Hu
- Department of Neurosurgery, Rui-Jin Hospital, Shanghai Jiao-Tong University, School of Medicine, Shanghai, China
| | - Jin Yang
- Department of Pulmonary and Critical Care Medicine, Rui-Jin Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Jiao-Jiao Cao
- Department of Neurosurgery, Rui-Jin Hospital, Shanghai Jiao-Tong University, School of Medicine, Shanghai, China
| | - Ben-Gen Pei
- Department of Neurosurgery, Zhou-Pu Hospital, Shanghai Jian-Kang University, School of Medicine, Shanghai, China.
| | - Ran-Ran Dai
- Department of Pulmonary and Critical Care Medicine, Rui-Jin Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
| | - Si-Jian Pan
- Department of Neurosurgery, Rui-Jin Hospital, Shanghai Jiao-Tong University, School of Medicine, Shanghai, China.
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Alammari F, Al-Hujaily EM, Alshareeda A, Albarakati N, Al-Sowayan BS. Hidden regulators: the emerging roles of lncRNAs in brain development and disease. Front Neurosci 2024; 18:1392688. [PMID: 38841098 PMCID: PMC11150811 DOI: 10.3389/fnins.2024.1392688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/22/2024] [Indexed: 06/07/2024] Open
Abstract
Long non-coding RNAs (lncRNAs) have emerged as critical players in brain development and disease. These non-coding transcripts, which once considered as "transcriptional junk," are now known for their regulatory roles in gene expression. In brain development, lncRNAs participate in many processes, including neurogenesis, neuronal differentiation, and synaptogenesis. They employ their effect through a wide variety of transcriptional and post-transcriptional regulatory mechanisms through interactions with chromatin modifiers, transcription factors, and other regulatory molecules. Dysregulation of lncRNAs has been associated with certain brain diseases, including Alzheimer's disease, Parkinson's disease, cancer, and neurodevelopmental disorders. Altered expression and function of specific lncRNAs have been implicated with disrupted neuronal connectivity, impaired synaptic plasticity, and aberrant gene expression pattern, highlighting the functional importance of this subclass of brain-enriched RNAs. Moreover, lncRNAs have been identified as potential biomarkers and therapeutic targets for neurological diseases. Here, we give a comprehensive review of the existing knowledge of lncRNAs. Our aim is to provide a better understanding of the diversity of lncRNA structure and functions in brain development and disease. This holds promise for unravelling the complexity of neurodevelopmental and neurodegenerative disorders, paving the way for the development of novel biomarkers and therapeutic targets for improved diagnosis and treatment.
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Affiliation(s)
- Farah Alammari
- Department of Blood and Cancer Research, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Ensaf M. Al-Hujaily
- Department of Blood and Cancer Research, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Alaa Alshareeda
- Department of Blood and Cancer Research, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Saudi Biobank Department, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Nada Albarakati
- Department of Blood and Cancer Research, King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Ministry of the National Guard-Health Affairs, Jeddah, Saudi Arabia
| | - Batla S. Al-Sowayan
- Department of Blood and Cancer Research, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
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3
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Li P, Ma X, Gu X. LncRNA MAFG-AS1 is involved in human cancer progression. Eur J Med Res 2023; 28:497. [PMID: 37941063 PMCID: PMC10631199 DOI: 10.1186/s40001-023-01486-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 10/30/2023] [Indexed: 11/10/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) refer to a type of non-protein-coding transcript of more than 200 nucleotides. LncRNAs play fundamental roles in disease development and progression, and lncRNAs are dysregulated in many pathophysiological processes. Thus, lncRNAs may have potential value in clinical applications. The lncRNA, MAF BZIP Transcription Factor G (MAFG)-AS1, is dysregulated in several cancer, including breast cancer, lung cancer, liver cancer, bladder cancer, colorectal cancer, gastric cancer, esophagus cancer, prostate cancer, pancreatic cancer, ovarian cancer, and glioma. Altered MAFG-AS1 levels are also associated with diverse clinical characteristics and patient outcomes. Mechanistically, MAFG-AS1 mediates a variety of cellular processes via the regulation of target gene expression. Therefore, the diagnostic, prognostic, and therapeutic aspects of MAFG-AS1 have been widely explored. In this review, we discuss the expression, major roles, and molecular mechanisms of MAFG-AS1, the relationship between MAFG-AS1 and clinical features of diseases, and the clinical applications of MAFG-AS1.
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Affiliation(s)
- Penghui Li
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Xiao Ma
- Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang, China
| | - Xinyu Gu
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China.
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4
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Kim N, Chung WY, Cho JY. The role and medical prospects of long non-coding RNAs in cardiovascular disease. Heart Fail Rev 2023; 28:1437-1453. [PMID: 37796408 PMCID: PMC10575999 DOI: 10.1007/s10741-023-10342-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/23/2023] [Indexed: 10/06/2023]
Abstract
Cardiovascular disease (CVD) has reached epidemic proportions and is a leading cause of death worldwide. One of the long-standing goals of scientists is to repair heart tissue damaged by various forms of CVD such as cardiac hypertrophy, dilated cardiomyopathy, myocardial infarction, heart fibrosis, and genetic and developmental heart defects such as heart valve deformities. Damaged or defective heart tissue has limited regenerative capacity and results in a loss of functioning myocardium. Advances in transcriptomic profiling technology have revealed that long noncoding RNA (lncRNA) is transcribed from what was once considered "junk DNA." It has since been discovered that lncRNAs play a critical role in the pathogenesis of various CVDs and in myocardial regeneration. This review will explore how lncRNAs impact various forms of CVD as well as those involved in cardiomyocyte regeneration. Further, we discuss the potential of lncRNAs as a therapeutic modality for treating CVD.
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Affiliation(s)
- Najung Kim
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 08826, Seoul, Republic of Korea
- Comparative Medicine Disease Research Center, Seoul National University, 08826, Seoul, Republic of Korea
| | - Woo-Young Chung
- Department of Internal Medicine, Boramae Medical Center , Seoul National University College of Medicine, Seoul National University, Boramaero 5 Gil 20, Dongjak-Gu, Seoul, Korea
| | - Je-Yoel Cho
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 08826, Seoul, Republic of Korea.
- Comparative Medicine Disease Research Center, Seoul National University, 08826, Seoul, Republic of Korea.
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Elzallat M, Hassan M, Elkramani N, Aboushousha T, AbdelLatif A, Helal N, Abu-Taleb H, El-Ahwany E. Nanoconjugated long non-coding RNA MEG3 as a new therapeutic approach for Hepatocellular carcinoma. Heliyon 2023; 9:e15288. [PMID: 37101621 PMCID: PMC10123146 DOI: 10.1016/j.heliyon.2023.e15288] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023] Open
Abstract
Background Hepatocellular carcinoma (HCC) is an aggressive human cancer with a poor prognosis. Long non-coding RNAs (lncRNA) have multiple functions: epigenomic regulation, gene transcription, protein-coding gene translation, and genome defense. The involvement of lncRNAs in therapy offers a vast step in cancer treatment. Objective In the current study, a novel therapeutic regimen using polymer nanoparticle-mediated delivery of lncRNA was designed to control the progression of hepatocarcinogenesis. Methods One hundred mice were divided into 5 groups. The first group served as a normal-control group and was injected with saline, whereas the pathological-control group (the second group) was injected with N-Nitrosodiethylamine (DEN) weekly for 16 weeks. Group 3, Group 4, and Group 5 were injected intrahepatically with polymer nanoparticles (NPs) alone, lncRNA MEG3 alone, and conjugated NPs, respectively, once/week for four weeks starting on the 12th week after DEN injection. After 16 weeks, animals were euthanized, and liver specimens and blood samples were collected for pathological, molecular, and biochemical assessment. Results Compared to the pathological-control group, nanoconjugates lncRNA MEG3 demonstrated a significant improvement in histopathology and tumour-associated biomarkers. Furthermore, the expression of the SENP1 and PCNA was downregulated. Conclusion MEG3 conjugated nanoparticles can be considered a novel therapeutic regimen for HCC.
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LncRNA H19 Promotes Lung Adenocarcinoma Progression via Binding to Mutant p53 R175H. Cancers (Basel) 2022; 14:cancers14184486. [PMID: 36139647 PMCID: PMC9496924 DOI: 10.3390/cancers14184486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/29/2022] Open
Abstract
Simple Summary This research explored the association and interaction between lncRNA H19 and mutant p53 (R175H) in lung adenocarcinoma development and progression. H19 over-expression may induce the elevated expression of mtp53 and interact with mtp53, which prolongs the p53 half-life and promotes transcriptional activity, leading to the progression of lung adenocarcinoma. The simultaneous inhibition of H19 and mtp53 may provide a novel strategy. Abstract Background: Accumulating data suggest that long non-coding RNA (lncRNA) H19 and p53are closely related to the prognosis of lung cancer. This study aims to analyze the association and interaction betweenH19 and mutant p53 R175H in lung adenocarcinoma (LAC). Methods: Mutant-type (Mt) p53 R175H was assessed by using RT-PCR in LAC cells and 100 cases of LAC tissue samples for association with H19 expression. Western blot, RNA-pull down, immunoprecipitation-Western blot and animal experiments were used to evaluate the interaction between H19 and mtp53. Results: Mtp53 R175H and H19 were over-expressed in LAC tissues and cells, while H19 over-expression extended the p53 half-life and enhanced transcriptional activity. Combined with anti-p53, ShH19 can significantly inhibit tumor growth in vivo. Conclusions: H19 over-expression may induce the elevated expression of mtp53 and interact with mtp53, leading to LAC progression. In addition, the high expression of mtp53 R175H is associated with poor overall survival inpatients. The simultaneous inhibition of H19 and mtp53 may provide a novel strategy for the effective control of LAC clinically.
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Rhim J, Baek W, Seo Y, Kim JH. From Molecular Mechanisms to Therapeutics: Understanding MicroRNA-21 in Cancer. Cells 2022; 11:cells11182791. [PMID: 36139366 PMCID: PMC9497241 DOI: 10.3390/cells11182791] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/29/2022] Open
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs that play an important role in regulating gene expression at a posttranscriptional level. As one of the first discovered oncogenic miRNAs, microRNA-21 (miR-21) has been highlighted for its critical role in cancers, such as glioblastoma, pancreatic adenocarcinoma, non-small cell lung cancer, and many others. MiR-21 targets many vital components in a wide range of cancers and acts on various cellular processes ranging from cancer stemness to cell death. Expression of miR-21 is elevated within cancer tissues and circulating miR-21 is readily detectable in biofluids, making it valuable as a cancer biomarker with significant potential for use in diagnosis and prognosis. Advances in RNA-based therapeutics have revealed additional avenues by which miR-21 can be utilized as a promising target in cancer. The purpose of this review is to outline the roles of miR-21 as a key modulator in various cancers and its potential as a therapeutic target.
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Affiliation(s)
- Jiho Rhim
- Cancer Molecular Biology Branch, Division of Cancer Biology, Research Institute, National Cancer Center, Goyang 10408, Korea
- Department of Cancer Biomedical Science, National Cancer Center, Graduate School of Cancer Science and Policy, Goyang 10408, Korea
| | - Woosun Baek
- Cancer Molecular Biology Branch, Division of Cancer Biology, Research Institute, National Cancer Center, Goyang 10408, Korea
- Department of Cancer Biomedical Science, National Cancer Center, Graduate School of Cancer Science and Policy, Goyang 10408, Korea
| | - Yoona Seo
- Cancer Molecular Biology Branch, Division of Cancer Biology, Research Institute, National Cancer Center, Goyang 10408, Korea
- Department of Cancer Biomedical Science, National Cancer Center, Graduate School of Cancer Science and Policy, Goyang 10408, Korea
| | - Jong Heon Kim
- Cancer Molecular Biology Branch, Division of Cancer Biology, Research Institute, National Cancer Center, Goyang 10408, Korea
- Department of Cancer Biomedical Science, National Cancer Center, Graduate School of Cancer Science and Policy, Goyang 10408, Korea
- Correspondence: ; Tel.: +82-31-920-2204
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8
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Xu W, Wu L, Lu H, Xiang X, Wang F, Li S. LncRNA PCGEM1 promotes colorectal cancer cell proliferation and migration in positive feedback loop through PCGEM1/miR-433-3p/CTCF axis. Pathol Res Pract 2022; 237:154017. [PMID: 35872368 DOI: 10.1016/j.prp.2022.154017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 06/23/2022] [Accepted: 07/10/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVES Prostate cancer gene expression marker 1 (PCGEM1) has been identified as an oncogenic long non-coding RNA (lncRNA) in diverse cancers, but it has never been linked with colorectal cancer (CRC). Former studies have shown the mutual regulation between lncRNAs and transcription factors (TFs) in cancer. CCCTC binding factor (CTCF) has been reported to transcriptionally activate lncRNAs in cancers. We predicted the binding of CTCF on PCGEM1 promoter through UCSC (https://genome.ucsc.edu/), but their relation has not been studied. We aimed to investigate whether and how PCGEM1 functioned in CRC cells and the interaction between PCGEM1 and CTCF. METHODS AND RESULTS The impacts of PCGEM1 and CTCF inhibition on CRC cells were verified through loss-of-function experiments. Mechanism experiments were used to prove the binding between CTCF and PCGEM1 in CRC progression. PCGEM1 possessed a high expression level in CRC cells as well as tumors. CTCF transcriptionally activated PCGEM1 expression. Knockdown of PCGEM1 or CTCF impeded proliferation and migration and drove apoptosis of CRC cells. Moreover, PCGEM1 bound miR-433-3p to prevent miR-433-3p from targeting CTCF. CONCLUSION We first revealed PCGEM1/miR-433-3p/CTCF positive feedback loop as an oncogenic axis in CRC cells, which potentially provides new clues for the advancement of CRC treatment.
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Affiliation(s)
- Weijun Xu
- Department of Gastroenterology, Jinling Hospital, the Affiliated Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu, China
| | - Lin Wu
- Department of Gastroenterology, Jinling Hospital, the Affiliated Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu, China
| | - Heng Lu
- Department of Gastroenterology, Jinling Hospital, the Affiliated Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu, China
| | - Xiaosong Xiang
- Department of Gastroenterology, Jinling Hospital, the Affiliated Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu, China
| | - Fangyu Wang
- Department of Gastroenterology, Jinling Hospital, the Affiliated Hospital of Nanjing Medical University, Nanjing 210002, Jiangsu, China
| | - Sheng Li
- Department of Oncology, Jiangsu Institute of Cancer Research, the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210009, Jiangsu, China.
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Mechanisms and functions of long noncoding RNAs in intervertebral disc degeneration. Pathol Res Pract 2022; 235:153959. [DOI: 10.1016/j.prp.2022.153959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 05/04/2022] [Accepted: 05/25/2022] [Indexed: 01/17/2023]
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Wang JP, Li C, Ding WC, Peng G, Xiao GL, Chen R, Cheng Q. Research Progress on the Inflammatory Effects of Long Non-coding RNA in Traumatic Brain Injury. Front Mol Neurosci 2022; 15:835012. [PMID: 35359568 PMCID: PMC8961287 DOI: 10.3389/fnmol.2022.835012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/08/2022] [Indexed: 11/29/2022] Open
Abstract
Globally, traumatic brain injury (TBI) is an acute clinical event and an important cause of death and long-term disability. However, the underlying mechanism of the pathophysiological has not been fully elucidated and the lack of effective treatment a huge burden to individuals, families, and society. Several studies have shown that long non-coding RNAs (lncRNAs) might play a crucial role in TBI; they are abundant in the central nervous system (CNS) and participate in a variety of pathophysiological processes, including oxidative stress, inflammation, apoptosis, blood-brain barrier protection, angiogenesis, and neurogenesis. Some lncRNAs modulate multiple therapeutic targets after TBI, including inflammation, thus, these lncRNAs have tremendous therapeutic potential for TBI, as they are promising biomarkers for TBI diagnosis, treatment, and prognosis prediction. This review discusses the differential expression of different lncRNAs in brain tissue during TBI, which is likely related to the physiological and pathological processes involved in TBI. These findings may provide new targets for further scientific research on the molecular mechanisms of TBI and potential therapeutic interventions.
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Affiliation(s)
- Jian-peng Wang
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Chong Li
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Wen-cong Ding
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Gang Peng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Ge-lei Xiao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Chen
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
- *Correspondence: Rui Chen,
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Quan Cheng,
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An Integrated Transcriptomics and Proteomics Analysis Implicates lncRNA MALAT1 in the Regulation of Lipid Metabolism. Mol Cell Proteomics 2021; 20:100141. [PMID: 34478876 PMCID: PMC8479834 DOI: 10.1016/j.mcpro.2021.100141] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 01/02/2023] Open
Abstract
Long noncoding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is upregulated in various cancers, and its overexpression is associated with tumor growth and metastasis. MALAT1 has been recognized as a key player in the regulation of RNA splicing and transcription; however, the landscape of gene expression regulated by MALAT1 remains unclear. In this study, we employed an integrated transcriptomics and proteomics strategy to characterize the alterations in gene expression induced by MALAT1 knockdown in hepatocellular carcinoma (HCC) cells and identified 2662 differentially expressed transcripts and 1149 differentially expressed proteins. Interestingly, downregulation of MALAT1 reduced the abundances of multiple genes in the AMP-activated protein kinase (AMPK) signaling and biosynthesis of unsaturated fatty acids pathways. Further investigation showed that MALAT1 knockdown inhibited glucose uptake and lipogenesis by reducing the expression levels of these lipid metabolism related genes, which contributes to the oncogenic role of MALAT1 in tumor cell proliferation and invasion. This study uncovers the function of MALAT1 in the modulation of cancer lipid metabolism, reveals the underlying molecular mechanism, and further supports the potential therapeutic opportunities for targeting MALAT1 in HCC treatment. Multiomic analysis characterizes MALAT1-regulated gene expression in HCC cells. MALAT1 knockdown reduces the expression of genes involving in lipid metabolism. MALAT1 knockdown inhibits glucose uptake and lipogenesis. MALAT1 promotes HCC cell proliferation and migration through regulating lipid metabolism.
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Aliperti V, Skonieczna J, Cerase A. Long Non-Coding RNA (lncRNA) Roles in Cell Biology, Neurodevelopment and Neurological Disorders. Noncoding RNA 2021; 7:36. [PMID: 34204536 PMCID: PMC8293397 DOI: 10.3390/ncrna7020036] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 02/08/2023] Open
Abstract
Development is a complex process regulated both by genetic and epigenetic and environmental clues. Recently, long non-coding RNAs (lncRNAs) have emerged as key regulators of gene expression in several tissues including the brain. Altered expression of lncRNAs has been linked to several neurodegenerative, neurodevelopmental and mental disorders. The identification and characterization of lncRNAs that are deregulated or mutated in neurodevelopmental and mental health diseases are fundamental to understanding the complex transcriptional processes in brain function. Crucially, lncRNAs can be exploited as a novel target for treating neurological disorders. In our review, we first summarize the recent advances in our understanding of lncRNA functions in the context of cell biology and then discussing their association with selected neuronal development and neurological disorders.
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Affiliation(s)
- Vincenza Aliperti
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Justyna Skonieczna
- Centre for Genomics and Child Health, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK;
| | - Andrea Cerase
- Centre for Genomics and Child Health, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK;
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Long non-coding RNA NKILA regulates expression of HSP90α, NF-κB and β-catenin proteins in the MCF-7 breast cancer cell line. Mol Biol Rep 2021; 48:4563-4571. [PMID: 34125329 DOI: 10.1007/s11033-021-06482-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 06/08/2021] [Indexed: 12/30/2022]
Abstract
Non-coding RNAs are increasingly being investigated and have shown great potential for diagnosis, prognosis and treatment of cancer. Thus, we have investigated a possible regulatory mechanism between NF-κB suppressor-NKILA, and HSP90, NF-κB, and β-catenin molecules in MCF-7 breast cancer cells. HSP90 is an important stress protein and together with β-catenin and NF-κB molecules can be responsible for cancer cell development. However, there is no comprehensive data available on the novel molecule NKILA unlike for HSP90, β-catenin and NF-κB alone. Therefore, we suggest there might be a correlation between NKILA and these proteins. To investigate the NKILA role on HSP90, NF-κB and β-catenin proteins we inhibited the NKILA by using transfection in MCF-7 breast cancer cells. NKILA-siRNA transfected cells were incubated for 5 h. Then, cells were collected and proteins were extracted to be separated by SDS-PAGE. The aforementioned proteins of siRNA transfected group were evaluated by quantification and comparison of their relative expression levels with the control group by immunoblotting. Results showed, HSP90 and NF-κB/p105, NF-κB/p65 and NF-κB/p50 subunits significantly increased while the level of β-catenin decreased after NKILA inhibition. For the first time we have demonstrated that HSP90 and expression levels of beta-catenin are associated with NKILA levels which may be closely related to the canonical NF-κB pathway in MCF-7 cells. These novel findings may have significant implications in cancer cells development and possibly present important hints for the future studies of the cancer cell targeted therapy.
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14
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Yadav B, Pal S, Rubstov Y, Goel A, Garg M, Pavlyukov M, Pandey AK. LncRNAs associated with glioblastoma: From transcriptional noise to novel regulators with a promising role in therapeutics. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 24:728-742. [PMID: 33996255 PMCID: PMC8099481 DOI: 10.1016/j.omtn.2021.03.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Glioblastoma multiforme (GBM) is the most widespread and aggressive subtype of glioma in adult patients. Numerous long non-coding RNAs (lncRNAs) are deregulated or differentially expressed in GBM. These lncRNAs possess unique regulatory functions in GBM cells, ranging from high invasion/migration to recurrence. This review outlines the present status of specific involvement of lncRNAs in GBM pathogenesis, with a focus on their association with key molecular and cellular regulatory mechanisms. Also, we highlighted the potential of different novel RNA-based strategies that may be beneficial for therapeutic purposes.
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Affiliation(s)
- Bhupender Yadav
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
| | - Sonali Pal
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
| | - Yury Rubstov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, GSP-7, Ulitsa Miklukho-Maklaya, 16/10, 117997 Moscow, Russian Federation.,Faculty of Biology and Biotechnology, National Research University Higher School of Economics, Vavilova Street 7, 117312 Moscow, Russian Federation
| | - Akul Goel
- La Canada High School, La Canada Flintridge, CA 91011, USA
| | - Manoj Garg
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University, Uttar Pradesh, Sector 125, Noida 201313, India
| | - Marat Pavlyukov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, GSP-7, Ulitsa Miklukho-Maklaya, 16/10, 117997 Moscow, Russian Federation
| | - Amit Kumar Pandey
- Amity Institute of Biotechnology, Amity University Haryana, Panchgaon, Manesar, Haryana 122413, India
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15
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Tan T, Li J, Wen Y, Zou Y, Yang J, Pan J, Hu C, Yao Y, Zhang J, Xin Y, Li S, Xia H, He J, Yang T. Association between lncRNA-H19 polymorphisms and hepatoblastoma risk in an ethic Chinese population. J Cell Mol Med 2021; 25:742-750. [PMID: 33236528 PMCID: PMC7812267 DOI: 10.1111/jcmm.16124] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/08/2020] [Accepted: 11/01/2020] [Indexed: 02/06/2023] Open
Abstract
H19 polymorphisms are associated with increased susceptibility to several cancers; however, their role in hepatoblastoma remains unclear. In this study, we investigated the association between three H19 polymorphisms (rs2839698 G>A, rs3024270 C>G, rs217727 G>A) and hepatoblastoma susceptibility in 213 hepatoblastoma patients. The rs2839698 and rs3024270 polymorphisms were associated with significantly increased hepatoblastoma risk, with the GG genotype associated with a higher risk of hepatoblastoma than the CC genotype at the rs3024270 locus. The rs217727 polymorphism was associated with significantly decreased hepatoblastoma risk, with the AG genotype associated with a lower risk of hepatoblastoma than the GG genotype. These findings were confirmed by combined analysis, and stratification analysis revealed that age, gender and clinical stage were associated with increased hepatoblastoma susceptibility. The GGG and AGG haplotypes were significantly associated with increased hepatoblastoma risk compared with the GCA reference (rs2839698, rs3024270, rs217727). The rs2839698 and rs3024270 polymorphisms correlated with decreased MRPL23-AS1 expression, whereas the rs217727 polymorphism was associated with increased MRPL23-AS1 expression. Overall, the H19 rs2839698, rs3024270 and rs217727 polymorphisms were associated with hepatoblastoma susceptibility in a Chinese Han population.
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Affiliation(s)
- Tianbao Tan
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Jiahao Li
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Yang Wen
- First Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Yan Zou
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Jiliang Yang
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Jing Pan
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Chao Hu
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Yuxiao Yao
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Jiao Zhang
- Department of Pediatric SurgeryFirst Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Yijuan Xin
- Clinical Laboratory Medicine Center of PLAXijing HospitalAir Force Medical UniversityXi'an, ShaanxiChina
| | - Suhong Li
- Department of PathologyChildren's Hospital and Women's Health Center of ShanxiTaiyuanChina
| | - Huimin Xia
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Jing He
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Tianyou Yang
- Department of Pediatric SurgeryGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhouChina
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16
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Ak Aksoy S, Mutlu M, Balcin RN, Taskapilioglu MO, Tekin C, Kaya S, Civan MN, Kocaeli H, Bekar A, Eser Ocak P, Cecener G, Egeli U, Tolunay S, Tunca B. NEAT1 Is a Novel Oncogenic LncRNA and Correlated with miR-143 in Pediatric Oligodendrogliomas. Pediatr Neurosurg 2021; 56:133-139. [PMID: 33744906 DOI: 10.1159/000514330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/11/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION The noncoding RNAs (ncRNAs) play a role in biological processes of various cancers including gliomas. The majority of these transcripts are uniquely expressed in differentiated tissues or specific glioma types. Pediatric oligodendroglioma (POG) is a rare subtype of diffuse glioma and accounts for <1% of pediatric brain tumors. Because histologically POG resembles adult OG, the same treatment is applied as adults. However, the significance in predicting outcomes in POG patients is unclear. In this study, we aimed to investigate the prognostic significance of expression -profiles of microRNA (miRNA) and long noncoding RNA -(LncRNA) in POGs. METHODS We investigated the levels of 13 known miRNAs and 6 LncRNAs in tumor samples from 9 patients with primary POG by using RT-PCR and analyzed their association with outcomes. RESULTS The expression levels of miR-21, miR-106a, miR-10b, and LncRNA NEAT1 were higher, and the expression level of miR-143 was lower in POG tissues compared with normal brain tissues (p = 0.006, p = 0.032, p = 0.034, p = 0.002, and p = 0.001, respectively). High levels of NEAT1 and low expression of miR-143 were associated with decreased probability of short disease-free survival (p = 0.018 and p = 0.022, respectively). DISCUSSION NEAT1 and miR-143 levels could serve as reciprocal prognostic predictors of disease progression in patients with POG. New treatment models to regulate the expression levels of NEAT1 and miR-143 will bring a new approach to the therapy of POG.
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Affiliation(s)
- Secil Ak Aksoy
- Inegol Vocation School, Uludag University, Bursa, Turkey
| | - Melis Mutlu
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Rabia Nur Balcin
- Department of Neurosurgery, Faculty of Medicine, Uludag University, Bursa, Turkey
| | | | - Cagla Tekin
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Seckin Kaya
- Department of Neurosurgery, Faculty of Medicine, Uludag University, Bursa, Turkey
| | | | - Hasan Kocaeli
- Department of Neurosurgery, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Ahmet Bekar
- Department of Neurosurgery, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Pinar Eser Ocak
- Department of Neurosurgery, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Gulsah Cecener
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Unal Egeli
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Sahsine Tolunay
- Department of Pathology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Berrin Tunca
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey,
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17
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Tan L, He X, Shen G. Identification of a 15-pseudogene based prognostic signature for predicting survival and antitumor immune response in breast cancer. Aging (Albany NY) 2020; 13:14499-14521. [PMID: 33378744 PMCID: PMC8202842 DOI: 10.18632/aging.103735] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 07/07/2020] [Indexed: 12/04/2022]
Abstract
Pseudogenes are noncoding RNAs that have been revealed to play critical roles in oncogenesis and tumor progression. However, their functional roles have not been comprehensively clarified in breast cancer. Here, we systematically analyzed the RNA sequencing data of 13931 pseudogenes in 775 breast cancer patients from The Cancer Genome Atlas dataset, and ultimately identified 15 prognostic pseudogenes by univariate Cox proportional hazard regression. A risk score model was constructed based on the prognostic pseudogenes via LASSO analysis and dichotomized patients into low- and high-risk subgroups. Patients in the high-risk group had a significantly shorter overall survival than those in the low-risk group. The prognostic value of these 15 pseudogenes and the risk score model were further validated in the European Genome-Phenome Archive dataset. Furthermore, we performed consensus clustering of the 15 prognostic pseudogenes and found that their expression pattern was significantly associated with tumor malignancy and host antitumor immune response, in terms of infiltrating immune cell compositions, antigen presenting genes expression, cytolytic activity and T-cell exhausted markers. This study indicated that these 15 prognostic pseudogenes were significantly correlated with tumor malignancy and host antitumor immune response in breast cancer, and might serve as potential targets for immunotherapy.
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Affiliation(s)
- Liqiang Tan
- Department of Medical Bioinformatics, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China.,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaofang He
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Guoping Shen
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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18
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Chen H, Xu X, Lai L, Huo R, Chen M. Circ_0008450 downregulates Runx3 to promote the proliferation and epithelial-mesenchymal transition of human keratinized epithelial cells. Cell Cycle 2020; 19:3303-3316. [PMID: 33131417 DOI: 10.1080/15384101.2020.1842665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Keloid is an extremely common and often overlooked benign neoplastic disease, but its consequences should not be underestimated. Therefore, a deep exploration of the pathological mechanism of keloid becomes very essential. After 22 samples were collected from each patient's keloid tissues and normal skin tissues, circ_0008450 and Runx3 expression was tested by qRT-PCR. When primary human keratinized epithelial cells were transfected by sh-circ_0008450 or sh-Runx3, cell proliferation, apoptosis, migration, and EMT process were assessed by CCK-8, BrdU assay, apoptosis assay, migration assay, and Western blot. Finally, transfection was performed to explore the effect of circ_0008450 on the TGF-β/Smad signal pathway by adopting western blot. Circ_0008450 was highly expressed in keratinized epithelial tissues. After the transfection of sh-circ_0008450 into primary human keratinized epithelial cells, cell proliferation, migration, and EMT process were inhibited, and apoptosis was stimulated. Moreover, circ_0008450 silence-induced above changes were partly reversed by transfecting sh-Runx3. In addition, transfecting sh-circ_0008450 could repress TGF-β/Smad pathway, while transfecting sh-Runx3 activated the above pathway. Circ_0008450 down-regulated Runx3 to promote the proliferation and EMT process of human keratinized epithelial cells. This discovery may be related to the activation of the TGF-β/Smad pathway.
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Affiliation(s)
- Huaxia Chen
- Department of Burn and Plastic Surgery, The Fourth Medical Center of People's Liberation Army General Hospital , Beijing, China.,Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University , Jinan, China
| | - Xiao Xu
- Department of Plastic and Reconstructive Surgery, The Third Medical Center of People's Liberation Army General Hospital , Beijing, China
| | - Linying Lai
- Department of Burn and Plastic Surgery, The Fourth Medical Center of People's Liberation Army General Hospital , Beijing, China
| | - Ran Huo
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University , Jinan, China
| | - Minliang Chen
- Department of Burn and Plastic Surgery, The Fourth Medical Center of People's Liberation Army General Hospital , Beijing, China
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19
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Tuli HS, Mittal S, Aggarwal D, Parashar G, Parashar NC, Upadhyay SK, Barwal TS, Jain A, Kaur G, Savla R, Sak K, Kumar M, Varol M, Iqubal A, Sharma AK. Path of Silibinin from diet to medicine: A dietary polyphenolic flavonoid having potential anti-cancer therapeutic significance. Semin Cancer Biol 2020; 73:196-218. [PMID: 33130037 DOI: 10.1016/j.semcancer.2020.09.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/11/2020] [Accepted: 09/29/2020] [Indexed: 02/07/2023]
Abstract
In the last few decades, targeting cancer by the use of dietary phytochemicals has gained enormous attention. The plausible reason and believe or mind set behind this fact is attributed to either lesser or no side effects of natural compounds as compared to the modern chemotherapeutics, or due to their conventional use as dietary components by mankind for thousands of years. Silibinin is a naturally derived polyphenol (a flavonolignans), possess following biochemical features; molecular formula C25H22O10, Molar mass: 482.44 g/mol, Boiling point 793 °C, with strikingly high antioxidant and anti-tumorigenic properties. The anti-cancer properties of Silibinin are determined by a variety of cellular pathways which include induction of apoptosis, cell cycle arrest, inhibition of angiogenesis and metastasis. In addition, Silibinin controls modulation of the expression of aberrant miRNAs, inflammatory response, and synergism with existing anti-cancer drugs. Therefore, modulation of a vast array of cellular responses and homeostatic aspects makes Silibinin an attractive chemotherapeutic agent. However, like other polyphenols, the major hurdle to declare Silibinin a translational chemotherapeutic agent, is its lesser bioavailability. After summarizing the chemistry and metabolic aspects of Silibinin, this extensive review focuses on functional aspects governed by Silibinin in chemoprevention with an ultimate goal of summarizing the evidence supporting the chemopreventive potential of Silibinin and clinical trials that are currently ongoing, at a single platform.
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Affiliation(s)
- Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133 207, Haryana, India
| | - Sonam Mittal
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Diwakar Aggarwal
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133 207, Haryana, India
| | - Gaurav Parashar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133 207, Haryana, India
| | | | - Sushil Kumar Upadhyay
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133 207, Haryana, India
| | - Tushar Singh Barwal
- Department of Zoology, Central University of Punjab, Bathinda, 151 001, Punjab, India
| | - Aklank Jain
- Department of Zoology, Central University of Punjab, Bathinda, 151 001, Punjab, India
| | - Ginpreet Kaur
- Department of Pharmacology, Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM's, NMIMS, Mumbai, 400 056, Maharastra, India
| | - Raj Savla
- Department of Pharmacology, Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM's, NMIMS, Mumbai, 400 056, Maharastra, India
| | | | - Manoj Kumar
- Department of Chemistry, Maharishi Markandeshwar University, Sadopur, India
| | - Mehmet Varol
- Department of Molecular Biology and Genetics, Faculty of Science, Mugla Sitki Kocman University, Mugla, TR48000, Turkey
| | - Ashif Iqubal
- Department of Pharmacology, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard (Deemed to be University), Delhi, India
| | - Anil Kumar Sharma
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133 207, Haryana, India.
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20
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Long non-coding RNAs as epigenetic mediator and predictor of glioma progression, invasiveness, and prognosis. Semin Cancer Biol 2020; 83:536-542. [PMID: 32920124 DOI: 10.1016/j.semcancer.2020.08.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 12/21/2022]
Abstract
Gliomas are aggressive brain tumors with high mortality rate. Over the past several years, non-coding RNAs, specifically the long non-coding RNAs (lncRNAs), have emerged as biomarkers of considerable interest. Emerging data reveals distinct patterns of expressions of several lncRNAs in the glioma tissues, relative to their expression in normal brains. This has led to the speculation for putative exploitation of lncRNAs as diagnostic biomarkers as well as biomarkers for targeted therapy. With a focus on lncRNAs that have shown promise as epigenetic biomarkers in the proliferation, migration, invasion, angiogenesis and metastasis in various glioma models, we discuss several such lncRNAs. The data from cell line / animal model-based studies as well as analysis from human patient samples is presented for the most up-to-date information on the topic. Overall, the information provided herein makes a compelling case for further evaluation of lncRNAs in clinical settings.
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21
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Dong X, Fu X, Yu M, Li Z. Long Intergenic Non-Protein Coding RNA 1094 Promotes Initiation and Progression of Glioblastoma by Promoting microRNA-577-Regulated Stabilization of Brain-Derived Neurotrophic Factor. Cancer Manag Res 2020; 12:5619-5631. [PMID: 32765065 PMCID: PMC7359895 DOI: 10.2147/cmar.s256147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/09/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose The long intergenic non-protein coding RNA 1094 (LINC01094) plays a vital role in the oncogenicity of clear cell renal cell carcinoma. However, its expression profile and detailed roles in glioblastoma (GBM) remain unknown. In this study, we mainly investigated the expression and roles of LINC01094 in GBM and focused on the mechanism by which LINC01094 regulates the malignant characteristics of GBM. Patients and Methods LINC01094 expression in GBM was determined with quantitative reverse transcription polymerase chain reaction. The proliferation, apoptosis, migration, invasion in vitro, and tumor growth in vivo of GBM cells were evaluated using Cell Counting Kit-8 assay, flow cytometry analysis, migration assay, invasion assay, and tumor xenograft models, respectively. Results LINC01094 was overexpressed in GBM tissues and cell lines. Moreover, increased LINC01094 expression was associated with adverse clinicopathological parameters in patients with GBM. Loss of LINC01094 inhibited GBM cell proliferation, migration, and invasion; promoted cell apoptosis; and suppressed tumor growth in vivo. Mechanically, LINC01094 functioned as a molecular sponge for microRNA-577 (miR-577) and consequently enhanced the expression of brain-derived neurotrophic factor (BDNF) in GBM cells. Both miR-577 inhibition and BDNF expression enhancement reversed LINC01094 deficiency-mediated inhibition of malignant processes in GBM cells. Conclusion Our results verified the involvement of the LINC01094/miR-577/BDNF pathway in GBM cells and its enhancing effects on the aggressive behaviors of GBM cells in vitro and in vivo. This pathway may be a novel and promising focus for the future development of targeted therapies for GBM.
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Affiliation(s)
- Xiaoyan Dong
- Department of Hepatobiliary Surgery, Weifang People's Hospital, Weifang, Shandong 261000, People's Republic of China
| | - Xiuxin Fu
- Department of Hepatobiliary Surgery, Weifang People's Hospital, Weifang, Shandong 261000, People's Republic of China
| | - Miao Yu
- Department of Hepatobiliary Surgery, Weifang People's Hospital, Weifang, Shandong 261000, People's Republic of China
| | - Zengfen Li
- Brain Hospital, Weifang People's Hospital, Weifang, Shandong 261000, People's Republic of China
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22
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Zhang Y, Guan X, Wang H, Wang Y, Yue D, Chen R. Long non-coding RNA metastasis-associated lung adenocarcinoma transcript 1 regulates renal cancer cell migration via cofilin-1. Oncol Lett 2020; 20:53. [PMID: 32788940 PMCID: PMC7416383 DOI: 10.3892/ol.2020.11914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
Long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is upregulated in numerous types of cancer, and is implicated in various cellular processes associated with cancer progression. However, the underlying molecular mechanisms by which MALAT1 regulates metastasis remain unclear. The present study investigated the expression of MALAT1 across a range of different cancer types by analyzing RNA sequencing data from The Cancer Genome Atlas database. The results indicate that the expression of MALAT1 is highly tissue-dependent and that MALAT1 is significantly overexpressed in renal clear cell carcinoma (KIRC). The biological role of MALAT1 in regulating KIRC cell migration was further investigated using molecular and cellular assays. The results demonstrate that MALAT1 regulates the expression of cofilin-1 (CFL1), potentially by regulating RNA splicing. MALAT1 knockdown decreased the expression of CFL1 at both the mRNA and protein levels, and affected cytoskeletal rearrangement by regulating the levels of F-actin via CFL1, leading to significantly decreased cellular migration. Clinical analysis confirmed a significant correlation between MALAT1 and CFL1 expression, implicating both genes as biomarkers for poor prognosis in KIRC. The present study demonstrates a novel mechanism by which MALAT1 regulates cell migration, which may be exploited to develop novel therapeutic strategies for managing renal cancer metastasis.
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Affiliation(s)
- Yali Zhang
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, P.R. China.,School of Pharmaceutical Science and Technology, Health Science Platform, Tianjin University, Tianjin 300072, P.R. China
| | - Xinyu Guan
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, P.R. China.,School of Pharmaceutical Science and Technology, Health Science Platform, Tianjin University, Tianjin 300072, P.R. China
| | - Hao Wang
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, P.R. China.,School of Pharmaceutical Science and Technology, Health Science Platform, Tianjin University, Tianjin 300072, P.R. China
| | - Yong Wang
- The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300070, P.R. China
| | - Dan Yue
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Ruibing Chen
- School of Pharmaceutical Science and Technology, Health Science Platform, Tianjin University, Tianjin 300072, P.R. China
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23
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Liu X, Feng S, Zhang XD, Li J, Zhang K, Wu M, Thorne RF. Non-coding RNAs, metabolic stress and adaptive mechanisms in cancer. Cancer Lett 2020; 491:60-69. [PMID: 32726612 DOI: 10.1016/j.canlet.2020.06.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/12/2020] [Accepted: 06/28/2020] [Indexed: 12/18/2022]
Abstract
Metabolic reprogramming in cancer describes the multifaceted alterations in metabolism that contribute to tumorigenesis. Major determinants of metabolic phenotypes are the changes in signalling pathways associated with oncogenic activation together with cues from the tumor microenvironment. Therein, depleted oxygen and nutrient levels elicit metabolic stress, requiring cancer cells to engage adaptive mechanisms. Non-coding RNAs (ncRNAs) act as regulatory elements within metabolic pathways and their widespread dysregulation in cancer contributes to altered metabolic phenotypes. Indeed, ncRNAs are the regulatory accomplices of many prominent effectors of metabolic reprogramming including c-MYC and HIFs that are activated by metabolic stress. By example, this review illustrates the range of ncRNAs mechanisms impacting these effectors throughout their DNA-RNA-protein lifecycle along with presenting the mechanistic roles of ncRNAs in adaptive responses to glucose, glutamine and lipid deprivation. We also discuss the facultative activation of metabolic enzymes by ncRNAs, a phenomenon which may reflect a broad but currently invisible level of metabolic regulation. Finally, the translational challenges associated with ncRNA discoveries are discussed, emphasizing the gaps in knowledge together with importance of understanding the molecular basis of ncRNA regulatory mechanisms.
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Affiliation(s)
- Xiaoying Liu
- Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Molecular Pathology Centre, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450053, China; School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Shanshan Feng
- Key Laboratory of Regenerative Medicine, Ministry of Education, Department of Developmental & Regenerative Biology, School of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xu Dong Zhang
- Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Molecular Pathology Centre, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450053, China; School of Biomedical Sciences & Pharmacy, University of Newcastle, Newcastle, NSW, Australia
| | - Jinming Li
- Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Molecular Pathology Centre, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450053, China
| | - Kaiguang Zhang
- The First Affiliated Hospital of University of Science and Technology of China, Hefei, 230027, China.
| | - Mian Wu
- Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Molecular Pathology Centre, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450053, China; The First Affiliated Hospital of University of Science and Technology of China, Hefei, 230027, China; Key Laboratory of Stem Cell Differentiation & Modification, School of Clinical Medicine, Henan University, Zhengzhou, China.
| | - Rick F Thorne
- Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Molecular Pathology Centre, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450053, China; School of Environmental & Life Sciences, University of Newcastle, NSW, Australia.
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24
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Liu L, Wang G, Wang L, Yu C, Li M, Song S, Hao L, Ma L, Zhang Z. Computational identification and characterization of glioma candidate biomarkers through multi-omics integrative profiling. Biol Direct 2020; 15:10. [PMID: 32539851 PMCID: PMC7294636 DOI: 10.1186/s13062-020-00264-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 06/04/2020] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Glioma is one of the most common malignant brain tumors and exhibits low resection rate and high recurrence risk. Although a large number of glioma studies powered by high-throughput sequencing technologies have led to massive multi-omics datasets, there lacks of comprehensive integration of glioma datasets for uncovering candidate biomarker genes. RESULTS In this study, we collected a large-scale assemble of multi-omics multi-cohort datasets from worldwide public resources, involving a total of 16,939 samples across 19 independent studies. Through comprehensive molecular profiling across different datasets, we revealed that PRKCG (Protein Kinase C Gamma), a brain-specific gene detectable in cerebrospinal fluid, is closely associated with glioma. Specifically, it presents lower expression and higher methylation in glioma samples compared with normal samples. PRKCG expression/methylation change from high to low is indicative of glioma progression from low-grade to high-grade and high RNA expression is suggestive of good survival. Importantly, PRKCG in combination with MGMT is effective to predict survival outcomes in a more precise manner. CONCLUSIONS PRKCG bears the great potential for glioma diagnosis, prognosis and therapy, and PRKCG-like genes may represent a set of important genes associated with different molecular mechanisms in glioma tumorigenesis. Our study indicates the importance of computational integrative multi-omics data analysis and represents a data-driven scheme toward precision tumor subtyping and accurate personalized healthcare.
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Affiliation(s)
- Lin Liu
- China National Center for Bioinformation, Beijing, 100101, China
- National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Guangyu Wang
- China National Center for Bioinformation, Beijing, 100101, China
- National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100101, China
- Present Address: The Methodist Hospital Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA
| | - Liguo Wang
- Division of Biomedical Statistics and Informatics, Mayo Clinic College of Medicine, Rochester, MN, 55905, USA
| | - Chunlei Yu
- China National Center for Bioinformation, Beijing, 100101, China
- National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Mengwei Li
- China National Center for Bioinformation, Beijing, 100101, China
- National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Shuhui Song
- China National Center for Bioinformation, Beijing, 100101, China
- National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Lili Hao
- China National Center for Bioinformation, Beijing, 100101, China
- National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Lina Ma
- China National Center for Bioinformation, Beijing, 100101, China.
- National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100101, China.
| | - Zhang Zhang
- China National Center for Bioinformation, Beijing, 100101, China.
- National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100101, China.
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Xie Y, Gu J, Qin Z, Ren Z, Wang Y, Shi H, Chen B. Long non-coding RNA FAM66C is associated with clinical progression and promotes cell proliferation by inhibiting proteasome pathway in prostate cancer. Cell Biochem Funct 2020; 38:1006-1016. [PMID: 32430927 DOI: 10.1002/cbf.3531] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 03/02/2020] [Accepted: 03/13/2020] [Indexed: 01/29/2023]
Abstract
Prostate cancer is the most prevalent malignancy in men, and the identification of novel oncogenes is clinically valuable for early screening, prevention and treatment. Recently, the studies have revealed that long non-coding RNAs (lncRNAs) play important roles in the development and progression of cancers including prostate cancer. The present study aims to identify a novel lncRNA that correlated with the survival time of prostate cancer patients and try to explore its biological functions in prostate cancer cells. After analysing the prostate carcinoma dataset of the Cancer Genome Atlas (TCGA), the lncRNA FAM66C was screened with its expression highly correlated with patient survival time, tumour stage and Gleason pattern. Real-time PCR showed that FAM66C highly expressed in prostate cancer cells, and knockdown FAM66C by siRNAs resulted in significant inhibition of cell growth. Furthermore, the results indicated that FAM66C promoted cell growth due to increasing cell proliferation but not decreasing cell apoptosis. In addition, FAM66C activated the epidermal growth factor receptor (EGFR)-extracellular signal-regulated kinase (ERK) signalling to promote cell proliferation. The result of Western Blotting and lysosomal acidity detection showed that knockdown FAM66C increased the protein ubiquitination and the lysosomal acidity. Moreover, inhibition of proteasome pathway could increase the activation of EGFR-ERK signalling and cell proliferation. Taken together, these results suggested that lncRNA FAM66C activate EGFR-ERK signalling to promote cell proliferation by inhibiting proteasome pathway in prostate cancer. SIGNIFICANCE OF THE STUDY: We demonstrated that lncRNA FAM66C was associated with clinical progression. In addition, highly expressed lncRNA FAM66C in prostate cancer cell lines promoted cell proliferation. Moreover, lncRNA FAM66C activate the epidermal growth factor receptor (EGFR)-extracellular signal-regulated kinase (ERK) signalling to promote cell proliferation by inhibiting proteasome pathway in prostate cancer. This study might provide lncRNA FAM66C as a potential therapeutic target gene of prostate cancer.
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Affiliation(s)
- Yimin Xie
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Urology, Affiliated Hospital of Jiangsu University-Yixing Hospital, Yixing, China
| | - Jie Gu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Zhenqian Qin
- Department of Urology, Affiliated Hospital of Jiangsu University-Yixing Hospital, Yixing, China
| | - Zhen Ren
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yanwei Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Haifeng Shi
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Binghai Chen
- Department of Urology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
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Catana CS, Crișan CA, Opre D, Berindan-Neagoe I. Implications of Long Non-Coding RNAs in Age-Altered Proteostasis. Aging Dis 2020; 11:692-704. [PMID: 32489713 PMCID: PMC7220293 DOI: 10.14336/ad.2019.0814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/14/2019] [Indexed: 12/15/2022] Open
Abstract
This review aims to summarize the current knowledge on how lncRNAs are influencing aging and cancer metabolism. Recent research has shown that senescent cells re-enter cell-cycle depending on intrinsic or extrinsic factors, thus restoring tissue homeostasis in response to age-related diseases (ARDs). Furthermore, maintaining proteostasis or cellular protein homeostasis requires a correct quality control (QC) of protein synthesis, folding, conformational stability, and degradation. Long non-coding RNAs (lncRNAs), transcripts longer than 200 nucleotides, regulate gene expression through RNA-binding protein (RBP) interaction. Their association is linked to aging, an event of proteostasis collapse. The current review examines approaches that lead to recognition of senescence-associated lncRNAs, current methodologies, potential challenges that arise from studying these molecules, and their crucial implications in clinical practice.
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Affiliation(s)
- Cristina-Sorina Catana
- Department of Medical Biochemistry, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
| | - Catalina-Angela Crișan
- Department of Neurosciences, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
| | - Dana Opre
- Department of Psychology, Babeș-Bolyai University, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- MEDFUTURE - Research Center for Advanced Medicine, Cluj-Napoca, Romania
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Institute of Doctoral Studies, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Experimental Pathology, “Prof. Dr. Ion Chiricuta” Oncology Institute, Cluj-Napoca, Romania
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LncRNA-ATB in cancers: what do we know so far? Mol Biol Rep 2020; 47:4077-4086. [PMID: 32248383 DOI: 10.1007/s11033-020-05415-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/30/2020] [Indexed: 01/06/2023]
Abstract
Cancer-related deaths did not apparently decrease in the past decades despite aggressive treatments. It's reported that cancer will become the leading cause of death worldwide in the twenty-first century. Increasing evidence has revealed that lncRNAs will emerge as promising cancer biomarkers or therapeutic targets in cancer treatment. LncRNA-ATB, a long noncoding RNA activated by TGF-β, was found to be abnormally expressed in certain cancers and participate in the development and progression of tumors. In addition, aberrant lncRNA-ATB expression was also associated with clinical characteristics of tumors. The purpose of this review is to summarize functions and underlying mechanisms of lncRNA-ATB in tumors, and discuss whether lncRNA-ATB can be a biomarker and therapeutic target in cancers.
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Baspinar Y, Elmaci I, Ozpinar A, Altinoz MA. Long non-coding RNA MALAT1 as a key target in pathogenesis of glioblastoma. Janus faces or Achilles' heal? Gene 2020; 739:144518. [PMID: 32119915 DOI: 10.1016/j.gene.2020.144518] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 12/28/2022]
Abstract
Glioblastomas (GBMs) are primary brain tumors with extremely bad prognosis and therefore; discovery of novel regulators of their pathology is of immense importance. LncRNAs (long noncoding RNAs) regulate nuclear structure, embryonic pluripotency, cell differentiation, development and carcinogenesis. Many lncRNAs have weak evolutionary conservation; however, a nuclear lncRNA, MALAT1 (metastasis-associated lung adenocarcinoma transcript 1), is exceptionally conserved and is among the most abundant lncRNAs in benign tissues. The majority of cell culture studies and clinico-epidemiological studies demonstrated that MALAT1 acts a tumor promoter in GBMs and inhibition of MALAT1 suppressed tumor growth in various preclinical models of GBM. MALAT1 involves in stemness of GBM cells by regulating SOX2, nestin and members of WNT pathway. MALAT1 induces protective autophagy and suppresses apoptosis in GBM cells via sponging miRNA-101 and increases temozolomide chemoresistance via enhancing epithelial-mesenchymal transition, suppressing miR-203 and promoting thymidilate synthase. Moreover, knockdown of MALAT1 expression enhances blood-brain tumor barrier permeability via miR-140, which may provide a double benefit of MALAT1 suppression by increasing the delivery of chemotherapy agents into the GBM tissues. On the other hand, there also exist some cell culture and animal studies showing that MALAT1 acts as a tumor suppressor in GBMs by suppression of ERK/MAPK and MMP2 signaling and by repression of miR-155 with subsequent increase of FBXW7. Whether protective or detrimental, MALAT1 seems to be an important component of GBM pathogenesis and hence; novels studies are needed in versatile models, including many different primary GBM cultures, orthotopic and xenogreft in vivo models and transgenic mice.
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Affiliation(s)
| | - Ilhan Elmaci
- Department of Neurosurgery, Acibadem Maslak Hospital, Istanbul, Turkey
| | - Aysel Ozpinar
- Department of Biochemistry, Acibadem University, Istanbul, Turkey
| | - Meric A Altinoz
- Department of Biochemistry, Acibadem University, Istanbul, Turkey; Department of Psychiatry, Maastricht University, Netherlands.
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LncRNA GAS5-AS1 inhibits glioma proliferation, migration, and invasion via miR-106b-5p/TUSC2 axis. Hum Cell 2020; 33:416-426. [PMID: 32072565 DOI: 10.1007/s13577-020-00331-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/10/2020] [Indexed: 01/13/2023]
Abstract
Glioma is one of the most common malignant tumors and shows a high metastasis rate and poor prognosis. Abnormal expression of long non-coding RNAs (lncRNAs) contributes to various human tumors including gliomas. This study aimed to investigate the regulatory role of the antisense RNA of growth arrest special 5 (GAS5-AS1), a novel lncRNA, in gliomas. Expression of GAS5-AS1 and microRNA-106b-5p (miR-106b-5p) in glioma tissues and cells was detected by quantitative reverse transcription PCR, northern blotting, or fluorescent in situ hybridization. Cell proliferation, migration, and invasion were analyzed by CCK-8 and Transwell assays. BALB/c nude mice were used to establish a glioma xenograft animal model by subcutaneous injection of U251 cells transfected with small interfering RNA targeting GAS5-AS1. A dual-luciferase reporter assay was conducted to confirm the targeting relationship between GAS5-AS1 and miR-106b-5p. GAS5-AS1 expression was downregulated in glioma tissues and cells, and upregulation of GAS5-AS1 expression inhibited glioma cell proliferation, migration, and invasion. GAS5-AS1 expression was correlated with the glioma tumor grade. In nude mice, upregulation of GAS5-AS1 markedly suppressed glioma tumor growth. GAS5-AS1 overexpression significantly increased the miR-106b-5p level in glioma cells, and GAS5-AS1 expression was negatively related to miR-106b-5p expression in glioma tissues. Overexpression of miR-106b-5p reversed the inhibitory effects of GAS5-AS1 upregulation on glioma cell proliferation and metastasis, while restoration of TUSC2 rescued the proliferation and invasion of glioma cells transfected with miR-106b-5p mimics. In summary, lncRNA GAS5-AS1 inhibited glioma proliferation, migration, and invasion by sponging miR-106b-5p and regulating the expression of TUSC2. Our results suggest GAS5-AS1 as a novel target for the treatment and prognosis prediction of gliomas.
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Ding J, Zhang L, Chen S, Cao H, Xu C, Wang X. lncRNA CCAT2 Enhanced Resistance of Glioma Cells Against Chemodrugs by Disturbing the Normal Function of miR-424. Onco Targets Ther 2020; 13:1431-1445. [PMID: 32110042 PMCID: PMC7034969 DOI: 10.2147/ott.s227831] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 11/28/2019] [Indexed: 12/14/2022] Open
Abstract
Background Aggressive metastasis of tumor cells assumed a constructive role in strengthening chemoresistance of tumors, so this investigation was intended to elucidate if lncRNA CCAT2 sponging downstream miR-424 regulated chemotolerance of glioma cells by boosting metastasis of glioma cells. Methods One hundred and twenty-eight pairs of glioma tissues and corresponding adjacent tissues were resected from glioma patients during their operation, and we also purchased a series of glioma cell lines, including U251, U87, A172 and SHG44. Furthermore, pcDNA3.1-CCAT2, si-CCAT2, miR-424 mimic and miR-424 inhibitor were transfected into SHG44 and U251 cell lines, so as to evaluate impacts of CCAT2 and miR-424 on chemosensitivity of the glioma cells. Besides, proliferation, invasion and metastasis of the cells were determined through the implementation of colony formation assay, transwell assay and scratch assay. Results Glioma tissues and cells were monitored with higher CCAT2 expression and lower miR-424 expression than adjacent normal tissues and NHA cell line (P<0.05). Among the glioma cell lines, the SHG44 cell line showed the strongest resistance against teniposide, temozolomide and cisplatin (P<0.05), whereas the U251 cell line was more sensitive to teniposide, temozolomide, vincristine and cisplatin than any other cell line (P<0.05). Besides, pcDNA3.1-CCAT2 and miR-424 inhibitor could enhance tolerance of glioma cell lines against drugs (P<0.05). Moreover, in-vitro transfection of si-CCAT2 and miR-424 mimic could significantly retard proliferation, invasion and migration of SHG44 and U251 cells (P<0.05), and CCAT2 was found to negatively regulate miR-424 expression by sponging it (P<0.05). In addition, CHK1 was deemed as the molecule targeted by upstream miR-424, and its overexpression can changeover the effects of miR-424 mimic on proliferation and metastasis of SHG44 and U251 cells. Conclusion lncRNA CCAT2/miR-424/Chk1 axis might serve as a promising target for improving chemotherapeutic efficacies in glioma treatment.
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Affiliation(s)
- Jun Ding
- Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, People's Republic of China
| | - Lin Zhang
- Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, People's Republic of China
| | - Shiwen Chen
- Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, People's Republic of China
| | - Heli Cao
- Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, People's Republic of China
| | - Chen Xu
- Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, People's Republic of China
| | - Xuyang Wang
- Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, People's Republic of China
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Wang S, Zhang C, Zhang X. Downregulation of long non‑coding RNA ANRIL promotes proliferation and migration in hypoxic human pulmonary artery smooth muscle cells. Mol Med Rep 2019; 21:589-596. [PMID: 31974617 PMCID: PMC6947933 DOI: 10.3892/mmr.2019.10887] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 09/26/2019] [Indexed: 01/03/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive syndrome. When PAH occurs, the circulatory resistance of the pulmonary vasculature will gradually increase, which may lead to right heart failure and death. Pathological features of PAH include abnormal proliferation of pulmonary vascular smooth muscle cells and pulmonary vascular remodeling. Hypoxia is the main cause of PAH, which directly induces the contraction and proliferation of pulmonary artery smooth muscle cells (PASMCs), and eventually leads to pulmonary vascular remodeling. Recent studies have shown that long non-coding RNAs (lncRNAs) play key roles in numerous biological processes, including cell proliferation and the occurrence and development of cardiovascular diseases. Studies have also shown that lncRNA antisense noncoding RNA in the INK4 locus (ANRIL) can promote the proliferation of vascular smooth muscle cells. Therefore, the hypothesis of the present study was that ANRIL may be expressed in PASMCs and play a regulatory role. In this study, the expression of ANRIL was analyzed by quantitative PCR. The effects of ANRIL on human pulmonary artery smooth muscle cells (HPASMCs) were assessed by MTT assay, flow cytometry, bromodeoxyuridine incorporation assay, Transwell assay, scratch-wound assay, immunofluorescence assay and western blotting. These experiments revealed that the expression of ANRIL was significantly downregulated in HPASMCs induced by hypoxia. The downregulation of ANRIL affected the cell cycle, making more HPASMCs move from the G0/G1 phase to the G2/M+S phase and strengthening the cell proliferation. Moreover, downregulated ANRIL increased the migration of HPASMCs under hypoxia. This study identified ANRIL as a critical regulator in HPASMCs induced by hypoxia and demonstrated the potential of gene therapy and drug development for treating PAH.
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Affiliation(s)
- Siqi Wang
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
| | - Chen Zhang
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
| | - Xiaodan Zhang
- College of Pharmacy, Harbin University of Commerce, Harbin, Heilongjiang 150076, P.R. China
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Han N, Yang L, Zhang X, Zhou Y, Chen R, Yu Y, Dong Z, Zhang M. LncRNA MATN1-AS1 prevents glioblastoma cell from proliferation and invasion via RELA regulation and MAPK signaling pathway. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:784. [PMID: 32042800 DOI: 10.21037/atm.2019.11.36] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background Glioblastoma (GBM) is one of the most aggressive and malignant tumor types. Despite treatment advances, GBM pathogenesis still remains largely unknown. MATN1-AS1, an intron-retained long non-coding RNA (lncRNA), has been implicated in GBM development. However, the underlying mechanism has not been identified. This study aimed to examine MATN1-AS1 expression and uncover its role in GBM. Methods LncRNAs with low expression levels were selected by analyzing brain glioma-related genes. The relative mRNA level of MATN1-AS1 was quantified using RT-qPCR in 75 GBM tumors and 10 normal brain tissues. Overall survival was assessed using the Kaplan-Meier method. RT-qPCR and immunoblotting analysis were carried out to assess the levels of MATN1-AS1, RELA, ERK1/2, Bcl-2, Bax, survivin, and MMP-9 in GBM cells. Biological functions of MATN1-AS1 in GBM tumors were measured both in vivo and in vitro. The mechanism of RELA regulation by MATN1-AS1 was detected using RNA pull-down, RNA-binding protein immunoprecipitation, chromatin immunoprecipitation, and the dual luciferase reporter gene assay. Results MATN1-AS1 was the most downregulated lncRNA in GBM and was correlated with a shorter survival time and poorer prognosis of GBM patients. Conversely, RELA was increased in GBM tumor tissues and negatively correlated with MATN1-AS1 expression. MATN1-AS1 over-expression or siRNA-RELA knockdown resulted in downregulation of mRNA and protein levels of RELA, ERK1/2, Bcl-2, survivin, and MMP-9; reduced cell proliferation and invasion; increased Bax mRNA and protein levels; and enhanced cellular apoptosis. MATN1-AS1 bound to E2F6, which negatively targeted RELA. Furthermore, MATN1-AS1 over-expression in GBM cells resulted in significant inhibition of tumor growth in vivo. Conclusions Upregulation of the lncRNA MATN1-AS1 inhibited GBM cell proliferation and invasion through inhibition of RELA via E2F6 and suppression of the MAPK signaling pathway. MATN1-AS1 might be an underlying therapeutic target for GBM.
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Affiliation(s)
- Na Han
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Li Yang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoxi Zhang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yangmei Zhou
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Rui Chen
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yang Yu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhen Dong
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Mengxian Zhang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Huang Z, Zhao X, Wu X, Xiang L, Yuan Y, Zhou S, Yu W. LncRNA UCA1 facilitated cell growth and invasion through the miR-206/CLOCK axis in glioma. Cancer Cell Int 2019; 19:316. [PMID: 31798345 PMCID: PMC6883638 DOI: 10.1186/s12935-019-1023-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 11/11/2019] [Indexed: 01/27/2023] Open
Abstract
Background Glioma is a lethal malignant brain tumor, which affects the brain functions and is life-threatening. LncRNA UCA1 was identified as a pivotal regulator for tumorigenesis of glioma. MiR-206 was discovered to promote tumorigenesis and is critical in the regulation of cell proliferation in glioma. This study will discuss the expression of UCA1 regarding miR-206 and CLOCK, and their integrative effects in the proliferation and cell cycle of glioma cells. Methods qRT-PCR was conducted to measure the mRNA expressions of IgG and Ago2 in cells co-transfected with UCA1, and miR-216 in U251. Bioinformation was analyzed for the prediction of association between UCA1 and miR-206. Transwell migrations assays and invasion assays were utilized to observe the cell invasive ability. Western blot and immunofluorescence imaging were used to examine the protein expressions. In vivo comparisons and observations were also performed to investigate the role of UCA1 in glioma growth. Results LncRNA UCA1 was up-regulated in glioma cell lines and tissues. It elevated cell invasion via the inducing of epithelial-mesenchymal transition. We found that UCA1 can modulate miR-206 expression and serve as an endogenous sponge of miR-206. The EMT-inducer CLOCK was validated as a messenger RNA target of miR-206. At last, we demonstrated that UCA1 exerted the biology function through regulating miR-206 and CLOCK in vivo. Conclusions Overall, the results demonstrated that UCA1/miR-206/CLOCK axis participated in the progressing of glioma and could act as a promising therapeutic target.
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Affiliation(s)
- Zhi Huang
- 1Department of interventional radiology, The Second Affiliated Hospital of Guizhou Medical University, Guiyang, 556000 Guizhou People's Republic of China.,2Department of Interventional Radiology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, 550005 Guizhou People's Republic of China.,3Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Xuya Zhao
- 2Department of Interventional Radiology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, 550005 Guizhou People's Republic of China
| | - Xiaowen Wu
- 4Department of Interventional Radiology, The Affiliated Hospital of Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Lei Xiang
- 4Department of Interventional Radiology, The Affiliated Hospital of Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Yingnan Yuan
- 4Department of Interventional Radiology, The Affiliated Hospital of Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Shi Zhou
- 4Department of Interventional Radiology, The Affiliated Hospital of Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
| | - Wenfeng Yu
- 3Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, No. 9 Beijing Road, Guiyang, 550002 Guizhou People's Republic of China
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Lnc-THOR silencing inhibits human glioma cell survival by activating MAGEA6-AMPK signaling. Cell Death Dis 2019; 10:866. [PMID: 31727877 PMCID: PMC6856358 DOI: 10.1038/s41419-019-2093-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 09/02/2019] [Accepted: 09/09/2019] [Indexed: 02/07/2023]
Abstract
Long non-coding RNA THOR (Lnc-THOR) binds to IGF2BP1, essential for its function. We here show that Lnc-THOR is expressed in human glioma tissues and cells. Its expression is extremely low or even undetected in normal brain tissues, as well as in human neuronal cells and astrocytes. We show that Lnc-THOR directly binds to IGF2BP1 in established and primary human glioma cells. shRNA-mediated Lnc-THOR knockdown or CRISPR/Cas9-induced Lnc-THOR knockout potently inhibited cell survival and proliferation, while provoking glioma cell apoptosis. Contrarily, forced overexpression of Lnc-THOR promoted glioma cell growth and migration. Importantly, Lnc-THOR shRNA or knockout activated MAGEA6-AMPK signaling in glioma cells. AMPK inactivation, by AMPKα1 shRNA, knockout, or dominant-negative mutation (T172A), attenuated Lnc-THOR shRNA-induced A172 glioma cell apoptosis. Moreover, CRISPR/Cas9-induced IGF2BP1 knockout activated MAGEA6-AMPK signaling as well, causing A172 glioma cell apoptosis. Significantly, Lnc-THOR shRNA was ineffective in IGF2BP1 KO A172 cells. In vivo, Lnc-THOR silencing or knockout potently inhibited subcutaneous A172 xenograft tumor growth in mice. MAGEA6 downregulation and AMPK activation were detected in Lnc-THOR-silenced/-KO A172 tumor tissues. Taken together, Lnc-THOR depletion inhibits human glioma cell survival possibly by activating MAGEA6-AMPK signaling.
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35
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Circulating long non-coding RNA PCGEM1 as a novel biomarker for gastric cancer diagnosis. Pathol Res Pract 2019; 215:152569. [DOI: 10.1016/j.prp.2019.152569] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/15/2019] [Accepted: 07/26/2019] [Indexed: 01/16/2023]
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Lei J, Fu Y, Zhuang Y, Zhang K, Lu D. LncRNA SNHG1 alleviates IL-1β-induced osteoarthritis by inhibiting miR-16-5p-mediated p38 MAPK and NF-κB signaling pathways. Biosci Rep 2019; 39:BSR20191523. [PMID: 31383786 PMCID: PMC6732361 DOI: 10.1042/bsr20191523] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/12/2019] [Accepted: 07/22/2019] [Indexed: 12/20/2022] Open
Abstract
Long non-coding RNA (LncRNA) small nucleolar RNA host gene 1 (SNHG1) has been reported in the occurrence and development of several diseases, but its biological role and mechanism in osteoarthritis (OA) remain to be illuminated. In the present research, we aimed to investigate the effect of SNHG1 on IL-1β-induced OA and its molecular mechanism. Results revealed that SNHG1 decreased the expression of MMPs, ADAMTs, collagen, and aggrecan, and ameliorates IL-1β-induced metabolic dysfunction in normal human chondrocytes-keen. In addition, SNHG1 inhibited the expressions of pro-inflammatory cytokines in chondrocytes, including NO, PGE2, IL-6, TNF-α, i-NOS, and COX-2. Furthermore, luciferase reporter assay demonstrated that SNHG1 could directly interact with miR-16-5p and suppressed miR-16-5p expression and activity. What is more, miR-16-5p overexpression reversed SNHG1-inhibited aberrant catabolism and inflammation triggered by IL-1β stimulation. Finally, SNHG1 inhibits the expression of miR-16-5p-mediated factors involved in p38MAPK and NF-κB signaling pathways, including ERK1/2, p-p38 and p-p65. Taken together, the results of our studies illuminate that SNHG1 alleviates the inflammation of IL-1β-induced OA through the activation of miR-16-5p-mediated p38MAPK and NF-κB signaling pathway. It suggested that SNHG1 may serve as a potential target for OA diagnosis and treatment.
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Affiliation(s)
- Jinlai Lei
- Department of Orthopaedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi province 710054, China
| | - Yahui Fu
- Department of Orthopaedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi province 710054, China
| | - Yan Zhuang
- Department of Orthopaedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi province 710054, China
| | - Kun Zhang
- Department of Orthopaedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi province 710054, China
| | - Daigang Lu
- Department of Orthopaedic Trauma, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi province 710054, China
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Yin S, Dou J, Yang G, Chen F. Long non-coding RNA XIST expression as a prognostic factor in human cancers: A meta-analysis. Int J Biol Markers 2019; 34:327-333. [PMID: 31566056 DOI: 10.1177/1724600819873010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A large number of literature has shown that high expression of X inactive-specific transcript (XIST) is associated with poor prognosis and metastasis of cancer in patients. However, most of this literature is limited by the small sample sizes and discrete outcomes. Therefore, a meta-analysis was performed to investigate the relation between XIST expression and tumor node metastasis (TNM) stage, lymph node metastasis, distant metastasis, and overall survival of cancer patients. We searched for literature in PubMed, Embase, and Web of Science. The pooled hazard ratios (HRs) or odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to evaluate the association of XIST expression with prognosis and clinicopathological characteristics of cancer patients. Finally, a total of 14 articles involving 1123 patients were included in this meta-analysis. The results suggested that high expression of XIST has a significant relationship with a relatively poor overall survival for patients with malignant tumors (HR 1.82; 95% CI 1.32, 2.52; P = 0.0003). Moreover, high expression of XIST was significantly associated with poor TNM stage (OR 3.64; 95% CI 2.62, 5.07; P < 0.0001), lymph node metastasis (OR 2.39; 95% CI 1.65, 3.46; P < 0.0001) and distant metastasis (OR 2.84; 95% CI 1.90, 4.23; P < 0.0001). In conclusion, high expression of lncRNA XIST may be a predictive factor of poor prognosis in human cancers.
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Affiliation(s)
- Shuai Yin
- Department of Gastroenterology, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei, China.,Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jiayu Dou
- Department of Microbiology & Immunology, Mcgill University, Montreal, Quebec, Canada
| | - Guifang Yang
- Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Fangfang Chen
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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Zhou S, Zhu K, Du Y, Jiang H, Li M, Wu P, Xu A, Ding X, Sun L, Cao C, Sun G, Wang R. Estrogen administration reduces the risk of pulmonary arterial hypertension by modulating the miR-133a signaling pathways in rats. Gene Ther 2019; 27:113-126. [PMID: 31562386 DOI: 10.1038/s41434-019-0103-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 09/11/2019] [Accepted: 09/16/2019] [Indexed: 12/25/2022]
Abstract
We aimed to investigate how estrogen (ES) is implicated in the pathogenesis of pulmonary arterial hypertension (PAH) potentially by reducing the extent of vascular remodeling in females. HE assay, Western Blot, IHC, and real-time PCR were carried out to observe the role of ES in regulating miR-133a expression and the levels of MYOSLID, SRF, CTGF, and vascular remodeling in rats. In addition, MTT assay and flow cytometry were utilized to observe how ES affects cell proliferation and cell cycle in PAH. Moreover, luciferase assays were carried out to clarity the regulatory relationship between miR-133a and its downstream targets. ES administration relieved the deregulation of miR-133a, MYOSLID, SRF, and CTGF in PAH rats. In addition, ES also reduced the thickening of blood vessels in PAH rats. ES could activate miR-133a promoter and arrest the cells in the G0/G1 cycle, thus dose-dependently suppressing the proliferation of cells. In addition, the presence of ES, MYOSLID siRNA, or miR-133a precursor all altered the expression of MYOSLID, SP1, SRF, and CTGF, thus establishing a molecular signaling pathway among these factors. Furthermore, miR-133a could bind to SP1, MYOSLID, SRF, and CTGF to reduce their expression. Moreover, SRF was proved to function as an activator of miR-133a promoter. Two feedback loops were established in this study: a negative feedback loop between SRF and miR-133a, and a positive loop among miR-133a/SRF/MLK1/MYOSLID. ES treatment upregulates miR-133a expression and reduces the incidence of PAH and vascular remodeling.
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Affiliation(s)
- Sijing Zhou
- Hefei Prevention and Treatment Center for Occupational Diseases, 230022, Hefei, China
| | - Ke Zhu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China
| | - Yongsheng Du
- Department of General Medicine, Hefei Second People's Hospital, Changjiang East Road, 230022, Hefei, China
| | - Huihui Jiang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China
| | - Min Li
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China
| | - Peipei Wu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China
| | - Aiqun Xu
- Department of General Medicine, Hefei Second People's Hospital, Changjiang East Road, 230022, Hefei, China
| | - Xing Ding
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China
| | - Li Sun
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China
| | - Chao Cao
- Department of Respiratory Medicine, Ningbo First Hospital, 315000, Ningbo, China
| | - Gengyun Sun
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China.
| | - Ran Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, 230022, Hefei, China.
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Shang W, Adzika GK, Li Y, Huang Q, Ding N, Chinembiri B, Rashid MSI, Machuki JO. Molecular mechanisms of circular RNAs, transforming growth factor-β, and long noncoding RNAs in hepatocellular carcinoma. Cancer Med 2019; 8:6684-6699. [PMID: 31523930 PMCID: PMC6826001 DOI: 10.1002/cam4.2553] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/23/2019] [Accepted: 08/26/2019] [Indexed: 12/17/2022] Open
Abstract
At the heart of hepatocellular carcinoma (HCC) lies disruption of signaling pathways at the level of molecules, genes, and cells. Non‐coding RNAs (ncRNAs) have been implicated in the disease progression of HCC. For instance, dysregulated expression of circular RNAs (circRNAs) has been observed in patients with HCC. As such, these RNAs are potential therapeutic targets and diagnostic markers for HCC. Long non‐coding RNAs (lncRNAs), a type of ncRNA, have also been recognized to participate in the initiation and progression of HCC. Transforming growth factor‐beta (TGF‐β) is another element which is now recognized to play crucial roles in HCC. It has been implicated in many biological processes such as survival, immune surveillance, and cell proliferation. In HCC, TGF‐β promotes disease progression by two mechanisms: an intrinsic signaling pathway and the extrinsic pathway. Through these pathways, it modulates various microenvironment factors such as inflammatory mediators and fibroblasts. An interesting yet‐to‐be resolved concept is whether the HCC‐promoting role of TGF‐β pathways is limited to a subset of HCC patients or it is involved in the whole process of HCC development. This review summarizes recent advancements to highlight the roles of circRNAs, lncRNAs, and TGF‐β in HCC.
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Affiliation(s)
- Wenkang Shang
- Department of Laboratory Medicine, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | | | - Yujie Li
- Department of Clinical Laboratory, The First People's Hospital of Kunshan, Kunshan, Jiangsu, China
| | - Qike Huang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Ningding Ding
- Department of Neurophysiology and Location Diagnosis, Guangdong 39 Brain Hospital, Guangzhou, Guangdong, China
| | - Bianca Chinembiri
- Physiology Department, Xuzhou Medical University, Xuzhou, Jiangsu, China
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UPF1 regulates the malignant biological behaviors of glioblastoma cells via enhancing the stability of Linc-00313. Cell Death Dis 2019; 10:629. [PMID: 31427569 PMCID: PMC6700115 DOI: 10.1038/s41419-019-1845-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/08/2019] [Accepted: 07/24/2019] [Indexed: 12/18/2022]
Abstract
There is growing evidence that the long non-coding RNAs(lncRNAs) play an important role in the biological behaviors of glioblastoma cells. In this study, we elucidated the function and possible effect and molecular mechanisms of lncRNA-Linc-00313 on the biological behaviors of glioblastoma cells as well as UPF1 function as a RNA-binding protein to enhance its stability. Here, we used qRT-PCR and western blot to measure the expression, cell Transfection to disrupt the expression of genes, cell viability analysis, quantization of apoptosis, cell migration, and invasion assays, Reporter vectors construction and luciferase assays to investigate the malignant biological behaviors of cells, human lncRNA microarrays, RNA-Immunoprecipitation, dual-luciferase gene reporter assay, half-life assay and chromatin immunoprecipitation to verify the binding sites, tumor xenograft implantation for in vivo experiment, SPSS 18.0 statistical software for data statistics. UPF1 and Linc-00313 were both upregulated in glioma tissues and cells. Knockdown of UPF1 or Linc-00313 significantly inhibited malignant biological behaviors of glioma cells by regulating miR-342-3p and miR-485-5p, which are downregulated and functioned as tumor suppressors in glioma. Furthermore, Linc-00313 could acted as a competing endogenous RNA(ceRNA) to regulate the expression of Zic4 by binding to miR-342-3p and miR-485-5p. Interestingly, Zic4 could bind to the promoters of UPF1 and Linc-00313 respectively and upregulate the expression of them. These results indicated that a positive-feedback loop was formed in the regulation of the biological behaviors of glioma cells. The study is the first to prove that the UPF1-Linc-00313-miR-342-3p/miR-485-5p-Zic4-SHCBP1 pathway forms a positive-feedback loop and regulates the biological behaviors of U87 and U251 cells, which might provide a new therapeutic target for glioma.
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Kim SS, Harford JB, Moghe M, Rait A, Pirollo KF, Chang EH. Targeted nanocomplex carrying siRNA against MALAT1 sensitizes glioblastoma to temozolomide. Nucleic Acids Res 2019; 46:1424-1440. [PMID: 29202181 PMCID: PMC5815062 DOI: 10.1093/nar/gkx1221] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 11/27/2017] [Indexed: 12/25/2022] Open
Abstract
Intrinsic therapeutic resistance especially in cancer stem cells (CSCs) together with extensive tumor cell infiltration and restricted permeation of the blood-brain barrier (BBB) by drugs may all contribute to the treatment failure in patients with glioblastoma multiforme (GBM). Accumulating evidence suggests that long non-coding RNA (lncRNA), metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) plays a role in tumor cell infiltration and therapeutic resistance of GBM. Using our tumor-targeted nanocomplex, we have modulated the expression of MALAT1 and investigated its impact on GBM cells. Importantly, our nanocomplex is able to target CSCs that are considered to be the prime culprits in therapeutic resistance and recurrence of GBM. Attenuation of MALAT1 by RNA interference significantly lowered the growth, motility and stemness of GBM cells. In addition, silencing of MALAT1 clearly improved the sensitivity of GBM cells to chemotherapeutic agents including the current first-line therapy of GBM [temozolomide (TMZ)]. In animal models of GBM, tumor involution with a modest but statistically significant survival benefit was achieved with concurrent treatment of TMZ and nanocomplex-mediated silencing of MALAT1. These results suggest that combining standard TMZ treatment with lncRNA-targeting therapies using our nanocomplex could substantially enhance the very poor prognosis for GBM patients.
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Affiliation(s)
- Sang-Soo Kim
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA.,SynerGene Therapeutics, Inc., Potomac, MD 20854, USA
| | - Joe B Harford
- SynerGene Therapeutics, Inc., Potomac, MD 20854, USA
| | - Manish Moghe
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Antonina Rait
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Kathleen F Pirollo
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
| | - Esther H Chang
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20057, USA
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Expression Profiles of lncRNAs and circRNAs in Keloid. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2019; 7:e2265. [PMID: 31624676 PMCID: PMC6635192 DOI: 10.1097/gox.0000000000002265] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 03/27/2019] [Indexed: 12/11/2022]
Abstract
Supplemental Digital Content is available in the text. Background: We hypothesized that crosstalk between noncoding RNAs, including microRNA (miRNA), lncRNA, and circRNA, might play a critical role in keloids development and physiology. To reveal the molecular mechanisms involved in the pathogenesis of keloids, we compared their gene expression profiles and differential expressions in keloid and normal skin tissues. Methods: Expression profiles of mRNAs and lncRNAs and circRNAs in 2 pairs (identification set) of keloid and matched normal skin tissues were analyzed through sequencing. Real-time quantitative PCR was performed to validate the sequencing results using 5 pairs (validation set) of keloid and matched normal skin tissues. Presumed targets of differentially expressed lncRNAs and circRNAs were functionally annotated by bioinformatics approaches. Results: The differential expression of mRNAs in keloid and normal skin by high-throughput sequencing was 2,528, of which 1,271 were downregulated, whereas 1,257 were upregulated. In the meantime, sequencing identified 2,227 differentially expressed lncRNAs, including 1,224 upregulated and 1,003 downregulated in keloid tissue compared with normal skin tissue. Additionally, 154 differentially expressed circRNAs were identified, including 81 upregulated and 73 downregulated in keloid tissue compared with normal skin tissue. Functional annotations of differentially expressed circRNA targets revealed their enrichment in several signaling pathways important for scar wound healing. Conclusions: Expression profiles of mRNAs, lncRNAs, and circRNAs were altered in keloid tissue, which may partly contribute to the etiology of keloids by affecting several signaling pathways relevant to scar wound healing. A better understanding of keloids pathogenesis may identify new therapeutic targets for keloids.
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Kang YJ, Yang DC, Kong L, Hou M, Meng YQ, Wei L, Gao G. CPC2: a fast and accurate coding potential calculator based on sequence intrinsic features. Nucleic Acids Res 2019; 45:W12-W16. [PMID: 28521017 PMCID: PMC5793834 DOI: 10.1093/nar/gkx428] [Citation(s) in RCA: 809] [Impact Index Per Article: 161.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/03/2017] [Indexed: 12/19/2022] Open
Abstract
With advances in next-generation sequencing technologies, numerous novel transcripts in a large number of organisms have been identified. With the goal of fast, accurate assessment of the coding ability of RNA transcripts, we upgraded the coding potential calculator CPC1 to CPC2. CPC2 runs ∼1000 times faster than CPC1 and exhibits superior accuracy compared with CPC1, especially for long non-coding transcripts. Moreover, the model of CPC2 is species-neutral, making it feasible for ever-growing non-model organism transcriptomes. A mobile-friendly web server, as well as a downloadable standalone package, is freely available at http://cpc2.cbi.pku.edu.cn.
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Affiliation(s)
- Yu-Jian Kang
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Center for Bioinformatics, Peking University, Beijing 100871, People's Republic of China
| | - De-Chang Yang
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Center for Bioinformatics, Peking University, Beijing 100871, People's Republic of China
| | - Lei Kong
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Center for Bioinformatics, Peking University, Beijing 100871, People's Republic of China
| | - Mei Hou
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Center for Bioinformatics, Peking University, Beijing 100871, People's Republic of China
| | - Yu-Qi Meng
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Center for Bioinformatics, Peking University, Beijing 100871, People's Republic of China
| | - Liping Wei
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Center for Bioinformatics, Peking University, Beijing 100871, People's Republic of China
| | - Ge Gao
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Center for Bioinformatics, Peking University, Beijing 100871, People's Republic of China
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Ye J, Zhu J, Chen H, Qian J, Zhang L, Wan Z, Chen F, Sun S, Li W, Luo C. A novel lncRNA-LINC01116 regulates tumorigenesis of glioma by targeting VEGFA. Int J Cancer 2019; 146:248-261. [PMID: 31144303 DOI: 10.1002/ijc.32483] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 04/16/2019] [Accepted: 05/07/2019] [Indexed: 12/19/2022]
Abstract
Brain glioma is the most common malignant tumor of the central nervous system, and one of the leading causes of death in patients with intracranial tumors. The clinical outcome of glioma is usually poor due to abundant vascularity, fast growth and susceptibility of invasion to normal brain tissues. Our microarray study showed that lncRNA-LINC01116 was significantly upregulated in glioma tissues and played an important role in cell proliferation, cycle, migration, invasion and angiogenesis. In addition, vascular endothelial growth factor (VEGFA) may be the major target genes in the downstream of lncRNA-LINC01116. Dual luciferase assay showed that LINC01116 and VEGFA both contained a miR-31-5p binding site, and LINC01116 could regulate the expression of VEGFA through competitive absorption of miR-31-5p. RNA immunoprecipitation indicated that LINC01116 and VEGFA were present in the miR-31-5p-RISC complex, and biotinylated miR-31-5p pull-down assay suggested that there was a competitive relationship between LINC01116 and VEGFA to bind with miR-31-5p. Collectively, our study has identified a novel lncRNA-LINC01116 and clarified the role and mechanism of LINC01116 in the tumorigenesis of glioma. LINC01116 may prove to be a potential target for the clinical diagnosis and treatment of glioma.
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Affiliation(s)
- Jingliang Ye
- Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Neurosurgery, 72 Group Military Hospital of CPLA, Huzhou, China
| | - Junle Zhu
- Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huairui Chen
- Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jun Qian
- Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lei Zhang
- Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhiping Wan
- Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Feng Chen
- Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuhan Sun
- Department of Medical Genetics, Second Military Medical University, Shanghai, China
| | - Wen Li
- Center of Reproductive Medicine, Shanghai Changzheng Hospital, Shanghai, China
| | - Chun Luo
- Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
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Zhang Y, Sui R, Chen Y, Liang H, Shi J, Piao H. Long noncoding RNA MT1JP inhibits proliferation, invasion, and migration while promoting apoptosis of glioma cells through the activation of PTEN/Akt signaling pathway. J Cell Physiol 2019; 234:19553-19564. [PMID: 31066040 DOI: 10.1002/jcp.28553] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/23/2019] [Accepted: 01/28/2019] [Indexed: 01/10/2023]
Abstract
This study is carried out to elucidate the role of long noncoding RNAs (lncRNAs) MT1JP in proliferation, invasion, migration, and apoptosis of glioma cells through the regulation of PTEN/Akt signaling pathway. The expression of MT1JP in 80 normal brain tissues and 138 glioma tissues, as well as glioma cell lines, was detected by quantitative reverse-transcription polymerase chain reaction. Besides, glioma cells with overexpression and low expression of MT1JP were constructed to confirm the role of MT1JP in proliferation, invasion, migration, and apoptosis of glioma cells and the growth of glioma cells in vivo through the regulation of PTEN/Akt signaling pathway. MT1JP expression was downregulated in glioma tissues and cells. The low expression of MT1JP was considered as an independent risk factor for predicting overall survival in gliomas. After transfection of MT1JP overexpression plasmid, glioma cells showed decreased proliferation, migration and invasion ability, increased apoptosis rate, and decreased the tumorigenic ability of nude mice. The trends were opposite in glioma cells transfected with MT1JP poor expression plasmid. Collectively, our study suggests that lncRNA MT1JP is responsible for inhibiting proliferation, invasion, and migration while promoting apoptosis of glioma cells through the activation of PTEN/Akt signaling pathway.
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Affiliation(s)
- Ye Zhang
- Department of Neurosurgery, Liaoning Cancer Hospital & Insititute, Cancer Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Rui Sui
- Department of Neurosurgery, Liaoning Cancer Hospital & Insititute, Cancer Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Yi Chen
- Department of Neurosurgery, Liaoning Cancer Hospital & Insititute, Cancer Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Hanyang Liang
- Department of Neurosurgery, Liaoning Cancer Hospital & Insititute, Cancer Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Ji Shi
- Department of Neurosurgery, Liaoning Cancer Hospital & Insititute, Cancer Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Haozhe Piao
- Department of Neurosurgery, Liaoning Cancer Hospital & Insititute, Cancer Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
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Yang L, Liu G. lncRNA BANCR suppresses cell viability and invasion and promotes apoptosis in non-small-cell lung cancer cells in vitro and in vivo. Cancer Manag Res 2019; 11:3565-3574. [PMID: 31114383 PMCID: PMC6497868 DOI: 10.2147/cmar.s194848] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 02/22/2019] [Indexed: 12/28/2022] Open
Abstract
Background: As a leading cause of deaths worldwide, lung cancer is a collection of diseases with diverse etiologies which includes non-small-cell lung cancer (NSCLC). Increasing evidence reported that aberrant expression of BRAF activated non-coding RNA (BANCR) was involved in the tumorigenesis and progression of various malignancies. Purpose and methods: However, its role in NSCLC has not been completely clarified. In the present study, we identified the role of BANCR in the regulation of NSCLC cell viability, invasion, and apoptosis. Down-regulation of BANCR expression was significantly observed in different NSCLC cell lines (A549, H1299, H1650, H1975, SPC-A1, and PC-9), tumor tissue from NSCLC mouse model and 30 human NSCLC tissues compared with adjacent normal tissues. Result: Overexpression of BANCR in these six NSCLC cell lines attenuated the cell viability and invasion. An increased apoptotic level caused by BANCR overexpression was also detected and displayed a conversed influence on Bcl-2 and Bax expression in mRNA and protein level. Furthermore, we identified the effect of BANCR overexpression on tumor growth in NSCLC mouse model. The restoration of BANCR expression inhibits NSCLC. Conclusion: Taken together, our findings shed an insight on the novel molecular mechanisms of lung NSCLC oncogenesis and provide the information for new therapeutic approaches on the disease.
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Affiliation(s)
- Liu Yang
- Sterile Supply Center, Mudanjiang Medical College, Hongqi Hospital, Mudanjiang City 157011, Heilongjiang Province, People's Republic of China
| | - Guiting Liu
- Department of Thoracic Surgery, Mudanjiang Medical College, Hongqi Hospital, Mudanjiang City 157011, Heilongjiang Province, People's Republic of China
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Voce DJ, Bernal GM, Wu L, Crawley CD, Zhang W, Mansour NM, Cahill KE, Szymura SJ, Uppal A, Raleigh DR, Spretz R, Nunez L, Larsen G, Khodarev NN, Weichselbaum RR, Yamini B. Temozolomide Treatment Induces lncRNA MALAT1 in an NF-κB and p53 Codependent Manner in Glioblastoma. Cancer Res 2019; 79:2536-2548. [PMID: 30940658 DOI: 10.1158/0008-5472.can-18-2170] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 01/17/2019] [Accepted: 03/28/2019] [Indexed: 01/03/2023]
Abstract
Alkylating chemotherapy is a central component of the management of glioblastoma (GBM). Among the factors that regulate the response to alkylation damage, NF-κB acts to both promote and block cytotoxicity. In this study, we used genome-wide expression analysis in U87 GBM to identify NF-κB-dependent factors altered in response to temozolomide and found the long noncoding RNA (lncRNA) MALAT1 as one of the most significantly upregulated. In addition, we demonstrated that MALAT1 expression was coregulated by p50 (p105) and p53 via novel κB- and p53-binding sites in the proximal MALAT1 coding region. Temozolomide treatment inhibited p50 recruitment to its cognate element as a function of Ser329 phosphorylation while concomitantly increasing p53 recruitment. Moreover, luciferase reporter studies demonstrated that both κB and p53 cis-elements were required for efficient transactivation in response to temozolomide. Depletion of MALAT1 sensitized patient-derived GBM cells to temozolomide cytotoxicity, and in vivo delivery of nanoparticle-encapsulated anti-MALAT1 siRNA increased the efficacy of temozolomide in mice bearing intracranial GBM xenografts. Despite these observations, in situ hybridization of GBM specimens and analysis of publicly available datasets revealed that MALAT1 expression within GBM tissue was not prognostic of overall survival. Together, these findings support MALAT1 as a target for chemosensitization of GBM and identify p50 and p52 as primary regulators of this ncRNA. SIGNIFICANCE: These findings identify NF-κB and p53 as regulators of the lncRNA MALAT1 and suggest MALAT1 as a potential target for the chemosensitization of GBM.
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Affiliation(s)
- David J Voce
- Department of Neurosurgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Giovanna M Bernal
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois
| | - Longtao Wu
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois
| | - Clayton D Crawley
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois
| | - Wei Zhang
- Department of Preventative Medicine, Northwestern University, Chicago, Illinois
| | - Nassir M Mansour
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois
| | - Kirk E Cahill
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois
| | - Szymon J Szymura
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois
| | - Abhineet Uppal
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois
| | - David R Raleigh
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois
| | | | - Luis Nunez
- LNK Chemsolutions LLC, Lincoln, Nebraska
| | | | - Nikolai N Khodarev
- Department of Radiation and Cellular Oncology, and The Ludwig Center for Metastasis Research, The University of Chicago, Chicago, Illinois
| | - Ralph R Weichselbaum
- Department of Radiation and Cellular Oncology, and The Ludwig Center for Metastasis Research, The University of Chicago, Chicago, Illinois
| | - Bakhtiar Yamini
- Department of Surgery, Section of Neurosurgery, The University of Chicago, Chicago, Illinois.
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48
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Hypoxia-induced LncRNA PCGEM1 promotes invasion and metastasis of gastric cancer through regulating SNAI1. Clin Transl Oncol 2019; 21:1142-1151. [PMID: 30690667 DOI: 10.1007/s12094-019-02035-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 01/08/2019] [Indexed: 12/12/2022]
Abstract
PURPOSE Hypoxia is an indispensable factor in the progression of metastasis. Hypoxia inducible factor-1α (HIF-1α), the core element in generating the hypoxia response, induces invasion and metastasis by promoting epithelial-mesenchymal transition (EMT). This study explored the underlying mechanism of hypoxia associated with the invasion and metastasis of gastric cancer (GC). METHODS Six methods were employed to assess the function of the long noncoding RNA (lncRNA) prostate cancer gene expression marker 1 (PCGEM1) including gene silencing, RT-PCR, the separation of nuclear and cytoplasmic fractions, scrape motility assay, transwell migration assay, and Western-blot. RESULTS LncRNA PCGEM1 was overexpressed in GC cells and tissues, and was induced by hypoxia in GC cells. Additional experiments confirmed that the knockdown of PCGEM1 significantly repressed the invasion and metastasis of GC cells. SNAI1, a key transcription factor of EMT, was regulated by PCGEM1. Overexpression of SNAI1 rescued the inhibition of PCGEM1-knockdown during the invasion and metastasis of GC cells. In addition, PCGEM1 and SNAI1 jointly affected the biomarkers of EMT. CONCLUSION Our findings indicated that PCGEM1 is a hypoxia-responsive lncRNA, and contributes to the invasion and metastasis of GC. The potential mechanism is attributed to the regulation of EMT by PCGEM1 and its influence on the expression of SNAI1.
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49
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Liu D, Song L, Liang Q, Hao L, Zhang Z, Han C. Long noncoding RNA LEF1‐AS1 silencing suppresses the initiation and development of prostate cancer by acting as a molecular sponge of miR‐330‐5p via LEF1 repression. J Cell Physiol 2019; 234:12727-12744. [PMID: 30613973 DOI: 10.1002/jcp.27893] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 11/14/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Da‐Chuang Liu
- Department of Urology Xuzhou Central Hospital Xuzhou P. R. China
- Xuzhou Institute of Medical Science Xuzhou P. R. China
| | - Lin‐Lin Song
- Department of Respiratory Xuzhou Central Hospital Xuzhou P. R. China
| | - Qing Liang
- Department of Urology Xuzhou Central Hospital Xuzhou P. R. China
| | - Lin Hao
- Department of Urology Xuzhou Central Hospital Xuzhou P. R. China
| | - Zhi‐Guo Zhang
- Department of Urology Xuzhou Central Hospital Xuzhou P. R. China
| | - Cong‐Hui Han
- Department of Urology Xuzhou Central Hospital Xuzhou P. R. China
- Xuzhou Institute of Medical Science Xuzhou P. R. China
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50
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Gagliardi S, Pandini C, Garofalo M, Bordoni M, Pansarasa O, Cereda C. Long non coding RNAs and ALS: Still much to do. Noncoding RNA Res 2018; 3:226-231. [PMID: 30533570 PMCID: PMC6260474 DOI: 10.1016/j.ncrna.2018.11.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/14/2018] [Accepted: 11/14/2018] [Indexed: 12/13/2022] Open
Abstract
Alterations in RNA metabolism play an important role in Amyotrophic Lateral Sclerosis (ALS) pathogenesis. The literature has described, so far, a small number of long non coding RNAs (lncRNAs) associated to ALS demonstrating that how there is still much to do to identify and understand their role in ALS. This class of RNAs may offer numerous starting points for new investigations about pathogenic mechanism involved in ALS disease. In this review, we have collected all the presented data about lncRNAs and ALS to offer an overview about this class of non-coding RNAs and their possible role in ALS disease.
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Affiliation(s)
- Stella Gagliardi
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
| | - Cecilia Pandini
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
| | - Maria Garofalo
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
| | - Matteo Bordoni
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
| | - Orietta Pansarasa
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
| | - Cristina Cereda
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
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