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Zhong J, Xu Z, Ding N, Wang Y, Chen W. The biological function of demethylase ALKBH1 and its role in human diseases. Heliyon 2024; 10:e33489. [PMID: 39040364 PMCID: PMC11260981 DOI: 10.1016/j.heliyon.2024.e33489] [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: 02/14/2024] [Revised: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 07/24/2024] Open
Abstract
AlkB homolog 1 (ALKBH1) is a member of the AlkB family of dioxygenases that are dependent on Fe(II) and α-ketoglutarate. Mounting evidence demonstrates that ALKBH1 exhibits enzymatic activity against various substrates, including N6-methyladenosine (m6A), N1-methyladenosine (m1A), N3-methylcytidine (m3C), 5-methylcytosine (m5C), N6-methyladenine (N6-mA, 6mA), and H2A, indicating its dual roles in different biological processes and involvement in human diseases. Up to the present, there is ongoing debate regarding ALKBH1's enzymatic activity. In this review, we present a comprehensive summary of recent research on ALKBH1, including its substrate diversity and pathological roles in a wide range of human disorders, the underlying mechanisms of its functions, and its dysregulation. We also explored the potential of ALKBH1 as a prognostic target.
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Affiliation(s)
- Jing Zhong
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
- Institute of Gastroenterology, Zhejiang University, Hangzhou 310009, China
| | - Zhengyang Xu
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
- Institute of Gastroenterology, Zhejiang University, Hangzhou 310009, China
| | - Ning Ding
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
- Institute of Gastroenterology, Zhejiang University, Hangzhou 310009, China
| | - Yanting Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
- Institute of Gastroenterology, Zhejiang University, Hangzhou 310009, China
| | - Wenwen Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
- Institute of Gastroenterology, Zhejiang University, Hangzhou 310009, China
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Su Y, Mei L, Jiang T, Wang Z, Ji Y. Novel role of lncRNAs regulatory network in papillary thyroid cancer. Biochem Biophys Rep 2024; 38:101674. [PMID: 38440062 PMCID: PMC10909982 DOI: 10.1016/j.bbrep.2024.101674] [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: 01/17/2024] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/06/2024] Open
Abstract
Papillary thyroid cancer (PTC) is the most common endocrine malignancy. The incidence of PTC has increased annually worldwide. Thus, PTC diagnosis and treatment attract more attention. Noncoding RNAs (lncRNAs) play crucial roles in PTC progression and act as prognostic biomarkers. Moreover, microRNAs (miRNAs) and epithelial-mesenchymal transition (EMT)-associated proteins have potential biomarkers for diagnosing and treating PTC. However, the correlation of lncRNAs with miRNAs and EMT-associated proteins needs further clarification. The present review highlights the recent advances of lncRNAs in PTC. We significantly summarized the two molecular regulatory mechanisms in PTC progress, including lncRNAs-miRNAs-protein signaling axes and lncRNAs-EMT pathways. This review will help our understanding of the association between lncRNAs and PTC and may assist us in evaluating the prognosis for PTC patients. Taken together, targeting the lncRNAs regulatory network has promising applications in diagnosing and treating PTC.
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Affiliation(s)
- Yuanhao Su
- Department of General Surgery, The Second Affiliated Hospital, Xi'an Jiaotong, University, Xi'an, 710004, China
| | - Lin Mei
- Scientific Research Center and Precision Medical Institute, The Second Affiliated, Hospital, Xi'an Jiaotong University, Xi'an, 710004, China
| | - Tiantian Jiang
- Department of General Surgery, The Second Affiliated Hospital, Xi'an Jiaotong, University, Xi'an, 710004, China
| | - Zhidong Wang
- Department of General Surgery, The Second Affiliated Hospital, Xi'an Jiaotong, University, Xi'an, 710004, China
| | - Yuanyuan Ji
- Scientific Research Center and Precision Medical Institute, The Second Affiliated, Hospital, Xi'an Jiaotong University, Xi'an, 710004, China
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Orang A, Marri S, McKinnon RA, Petersen J, Michael MZ. Restricting Colorectal Cancer Cell Metabolism with Metformin: An Integrated Transcriptomics Study. Cancers (Basel) 2024; 16:2055. [PMID: 38893174 PMCID: PMC11171104 DOI: 10.3390/cancers16112055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/13/2024] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND Metformin is a first-line therapy for type 2 diabetes as it disrupts cellular metabolism. Despite the association between metformin and lower cancer incidence, the anti-tumour activity of the drug in colorectal cancer (CRC) is incompletely understood. This study identifies underlying molecular mechanisms by which metformin slows colorectal cancer cell proliferation by investigating metformin-associated microRNA (miRNA) and target gene pairs implicated in signalling pathways. METHODS The present study analysed changes in miRNAs and the coding transcriptome in CRC cells treated with a sublethal dose of metformin, followed by the contextual validation of potential miRNA-target gene pairs. RESULTS Analyses of small RNA and transcriptome sequencing data revealed 104 miRNAs and 1221 mRNAs to be differentially expressed in CRC cells treated with metformin for 72 h. Interaction networks between differentially expressed miRNAs and putative target mRNAs were identified. Differentially expressed genes were mainly implicated in metabolism and signalling processes, such as the PI3K-Akt and MAPK/ERK pathways. Further validation of potential miRNA-target mRNA pairs revealed that metformin induced miR-2110 and miR-132-3p to target PIK3R3 and, consequently, regulate CRC cell proliferation, cell cycle progression and the PI3K-Akt signalling pathway. Metformin also induced miR-222-3p and miR-589-3p, which directly target STMN1 to inhibit CRC cell proliferation and cell cycle progression. CONCLUSIONS This study identified novel changes in the coding transcriptome and small non-coding RNAs associated with metformin treatment of CRC cells. Integration of these datasets highlighted underlying mechanisms by which metformin impedes cell proliferation in CRC. Importantly, it identified the post-transcriptional regulation of specific genes that impact both metabolism and cell proliferation.
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Affiliation(s)
- Ayla Orang
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia; (A.O.); (S.M.); (R.A.M.); (J.P.)
| | - Shashikanth Marri
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia; (A.O.); (S.M.); (R.A.M.); (J.P.)
| | - Ross A. McKinnon
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia; (A.O.); (S.M.); (R.A.M.); (J.P.)
| | - Janni Petersen
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia; (A.O.); (S.M.); (R.A.M.); (J.P.)
- Nutrition and Metabolism, South Australia Health and Medical Research Institute, Adelaide, SA 5000, Australia
| | - Michael Z. Michael
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia; (A.O.); (S.M.); (R.A.M.); (J.P.)
- Department of Gastroenterology and Hepatology, Flinders Medical Centre, Bedford Park, SA 5042, Australia
- Flinders Centre for Innovation in Cancer, Flinders Medical Centre, Bedford Park, SA 5042, Australia
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Jamali E, Hashemnejad MA, Askari A, Shomali H, Eslami S, Akbari Dilmaghani N, Sharifi G, Bahranian A, Ghafouri-Fard S. A bioinformatics-based approach and expression assay for identification of dysregulated genes in pituitary adenoma. Pathol Res Pract 2024; 253:155006. [PMID: 38056134 DOI: 10.1016/j.prp.2023.155006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023]
Abstract
Non-functioning pituitary adenomas (NFPAs) are a group of pituitary neuroendocrine tumors that are associated with morbidity. The exact pathophysiological process leading to this pathology is not known. Nerve growth factor (NGF) is a neurotropic factor that might be involved in this process. We used bioinformatics tools to analyze expression of genes in NFPA samples. Our analyses led to identification of NGF-related genes, namely ARC, ID1, and SH3GL3 - as well as one long non-coding RNA (lncRNA) called myocardial infarction associated transcript (MIAT). Then, we assessed their expression in NFPAs and their adjacent non-cancerous samples. While expression levels of SH3GL3 and MIAT were different between NFPA samples and control samples, expressions of ARC and ID1 were not meaningfully different between these two groups of specimens. SH3GL3 was over-expressed in NFPA samples compared with control samples (expression ratio (95% CI)= 8.22 (1.51-44.6), P value= 0.03). Similarly, expression of MIAT was higher in NFPAs compared with controls (expression ratio (95% CI)= 7.7 (1.7-33.6), P value= 0.009). Taken together, we validated the bioinformatics results regarding the expression of SH3GL3 and MIAT. This study provides a deeper understanding of the involvement of these genes in the pituitary tumorigenesis.
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Affiliation(s)
- Elena Jamali
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Mohammad Amin Hashemnejad
- Clinical Research Developmental Unit (CRDU) of Shahid Rajaei Hospital, Alborz University of Medical Sciences, Karaj, Iran
| | - Arian Askari
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hanieh Shomali
- Department of Biomedical Engineering, Islamic Azad University Central Tehran Branch, Tehran, Iran
| | - Solat Eslami
- Department of Medical Biotechnology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | | | - Guive Sharifi
- Skull Base Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arefe Bahranian
- Skull Base Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Iran.
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Zhang S, Zhong J, Guo D, Zhang S, Huang G, Chen Y, Xu C, Chen W, Zhang Q, Zhao C, Liu S, Luo Z, Lin C. MIAT shuttled by tumor-secreted exosomes promotes paclitaxel resistance in esophageal cancer cells by activating the TAF1/SREBF1 axis. J Biochem Mol Toxicol 2023; 37:e23380. [PMID: 37132394 DOI: 10.1002/jbt.23380] [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: 09/26/2021] [Revised: 02/23/2023] [Accepted: 04/14/2023] [Indexed: 05/04/2023]
Abstract
Chemoresistance remains a major obstacle to the treatment of esophageal cancer (EC). Exosome-mediated transfer of long noncoding RNAs (lncRNAs) has recently been unveiled to correlate with the regulation of drug resistance in EC. This study aimed to investigate the physiological mechanisms by which exosome-encapsulated lncRNA myocardial infarction-associated transcript (MIAT) derived from tumor cells might mediate the paclitaxel (PTX) resistance of EC cells. First, MIAT was experimentally determined to be upregulated in PTX nonresponders and PTX-resistant EC cells. Silencing of MIAT in PTX-resistant EC cells decreased cell viability and enhanced apoptosis, corresponding to a reduced half-maximal inhibitory concentration (IC50 ) value. Next, exosomes were isolated from EC109 and EC109/T cells, and EC109 cells were cocultured with EC109/T-cell-derived exosomes. Accordingly, MIAT was revealed to be transmitted through exosomes from EC109/T cells to EC109 cells. Tumor-derived exosomes carrying MIAT increased the IC50 value of PTX and suppressed apoptosis in EC109 cells to promote PTX resistance. Furthermore, MIAT promoted the enrichment of TATA-box binding protein-associated Factor 1 (TAF1) in the promoter region of sterol regulatory element binding transcription factor 1 (SREBF1), as shown by a chromatin immunoprecipitation assay. This might be the mechanism by which MIAT could promote PTX resistance. Finally, in vivo experiments further confirmed that the knockdown of MIAT attenuated the resistance of EC cells to PTX. Collectively, these results indicate that tumor-derived exosome-loaded MIAT activates the TAF1/SREBF1 axis to induce PTX resistance in EC cells, providing a potential therapeutic target for overcoming PTX resistance in EC.
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Affiliation(s)
- Shuyao Zhang
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), Guangzhou, P. R. China
- Department of Pharmacology, Shantou University Medical College, Shantou, P. R. China
| | - Junyong Zhong
- Department of Oncology, Longgang District Central Hospital of Shenzhen, Shenzhen, P. R. China
| | - Dainian Guo
- Good Clinical Practice, Cancer Hospital of Shantou University Medical College, Shantou, P. R. China
| | - Shengqi Zhang
- Dafeng Hospital of Chaoyang District in Shantou City, Shantou, P. R. China
- Medical Oncology, Cancer Hospital of Shantou University Medical College, Shantou, P. R. China
| | - Guifeng Huang
- Dafeng Hospital of Chaoyang District in Shantou City, Shantou, P. R. China
| | - Yun Chen
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), Guangzhou, P. R. China
| | - Chengcheng Xu
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), Guangzhou, P. R. China
- Department of Pharmacology, Shantou University Medical College, Shantou, P. R. China
| | - Wang Chen
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), Guangzhou, P. R. China
| | - Qiuzhen Zhang
- Department of Pharmacology, Shantou University Medical College, Shantou, P. R. China
| | - Chengkuan Zhao
- Department of Pharmacy, Guangzhou Red Cross Hospital (Guangzhou Red Cross Hospital of Jinan University), Guangzhou, P. R. China
- Department of Pharmacology, Shantou University Medical College, Shantou, P. R. China
| | - Sulin Liu
- The First Affiliated Hospital of Shantou University Medical College, Shantou, P. R. China
| | - Zebin Luo
- Dafeng Hospital of Chaoyang District in Shantou City, Shantou, P. R. China
| | - Chaoxian Lin
- The First Affiliated Hospital of Shantou University Medical College, Shantou, P. R. China
- Shantou Chaonan Minsheng Hospital, Shantou, P. R. China
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Chandramohan K, Balan DJ, Devi KP, Nabavi SF, Reshadat S, Khayatkashani M, Mahmoodifar S, Filosa R, Amirkhalili N, Pishvaei S, Aval OS, Nabavi SM. Short interfering RNA in colorectal cancer: is it wise to shoot the messenger? Eur J Pharmacol 2023; 949:175699. [PMID: 37011722 DOI: 10.1016/j.ejphar.2023.175699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/23/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
Colorectal cancer (CRC) is the third most common cancer and the leading cause of gastrointestinal cancer death. 90% of people diagnosed with colorectal cancer are over the age of 50; nevertheless, the illness is more aggressive among those detected at a younger age. Chemotherapy-based treatment has several adverse effects on both normal and malignant cells. The primary signaling pathways implicated in the advancement of CRC include hedgehog (Hh), janus kinase and signal transducer and activator of transcription (JAK/STAT), Wingless-related integration site (Wnt)/β-catenin, transforming growth factor-β (TNF-β), epidermal growth factor receptor (EGFR)/Mitogen-activated protein kinases (MAPK), phosphoinositide 3-kinase (PI3K), nuclear factor kappa B (NF-κB), and Notch. Loss of heterozygosity in tumor suppressor genes like adenomatous polyposis coli, as well as mutation or deletion of genes like p53 and Kirsten rat sarcoma viral oncogene (KRAS), are all responsible for the occurrence of CRC. Novel therapeutic targets linked to these signal-transduction cascades have been identified as a consequence of advances in small interfering RNA (siRNA) treatments. This study focuses on many innovative siRNA therapies and methodologies for delivering siRNA therapeutics to the malignant site safely and effectively for the treatment of CRC. Treatment of CRC using siRNA-associated nanoparticles (NPs) may inhibit the activity of oncogenes and MDR-related genes by targeting a range of signaling mechanisms. This study summarizes several siRNAs targeting signaling molecules, as well as the therapeutic approaches that might be employed to treat CRC in the future.
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Zhan Y, Tao Q, Meng Q, Zhang R, Lin L, Li X, Zheng L, Zheng J. LncRNA-MIAT activates hepatic stellate cells via regulating Hippo pathway and epithelial-to-mesenchymal transition. Commun Biol 2023; 6:285. [PMID: 36934152 PMCID: PMC10024685 DOI: 10.1038/s42003-023-04670-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 03/07/2023] [Indexed: 03/20/2023] Open
Abstract
Long non-coding RNA-myocardial infarction-associated transcript (lncRNA-MIAT) has been reported to play an important role in the development of multiple cancers. However, the biological roles of MIAT in liver fibrosis are still unknown. In this study, the expression of MIAT is up-regulated during liver fibrosis. Silencing MIAT leads to the suppression of hepatic stellate cell (HSC) proliferation and collagen expression. Double immunofluorescence analysis additionally demonstrates that MIAT inhibition leads to the suppression of type I collagen and α-SMA in vitro. In vivo, MIAT knockdown contributes to the inhibition of fibrosis progression and collagen accumulation. MIAT is confirmed as a target of miR-3085-5p, and the co-location of MIAT and miR-3085-5p is found in HSC cytoplasm. Interestingly, there is a negative correlation between MIAT expression and miR-3085-5p level in cirrhotic patients as well as activated HSCs. In addition, the effects of MIAT inhibition on HSC inactivation are blocked down by miR-3085-5p inhibitor. YAP is a target of miR-3085-5p. Reduced YAP caused by loss of MIAT is reversed by miR-3085-5p inhibitor. Notably, YAP knockdown results in the suppression of MIAT-mediated epithelial-to-mesenchymal transition (EMT) process. In conclusion, we demonstrate that MIAT enhances the activation of HSCs, at least in part, via miR-3085-5p/YAP/EMT signaling pathway.
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Affiliation(s)
- Yating Zhan
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Qiqi Tao
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Qishan Meng
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Rongrong Zhang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Lifan Lin
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xinmiao Li
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Lei Zheng
- Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jianjian Zheng
- Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
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Liu Y, Peng H, Shen Y, Da R, Tian A, Guo X. Downregulation of Long Noncoding RNA Myocardial Infarction Associated Transcript Suppresses Cell Proliferation, Migration, Invasion, and Glycolysis by Regulation of miR-488-3p/IGF1R Pathway in Colorectal Cancer. Cancer Biother Radiopharm 2022; 37:927-938. [PMID: 33085926 DOI: 10.1089/cbr.2020.3671] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Colorectal cancer (CRC) is a significant public problem and the third cause of cancer-induced death all over the world. Long noncoding RNA (lncRNA) has been reported as a vital mediator in human cancer. However, the precise role of lncRNA myocardial infarction associated transcript (MIAT) in CRC is unclear. Materials and Methods: The abundance of MIAT, miR-488-3p, and the type 1 insulin-like growth factor receptor (IGF1R) was measured by real-time quantitative polymerase chain reaction assay. Western blot assay was carried out to assess the protein level in CRC samples or control group. The cell activity, abilities of migration and invasion, and glycolysis were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazol-3-ium bromide (MTT), transwell, and testing glucose consumption and lactate product, correspondingly. The target association between miR-488-3p, MIAT, or IGF1R was predicted and established by bioinformatics tools, dual-luciferase reporter, and RNA pull-down assays, correspondingly. The effects of MIAT silencing in vivo were analyzed by animal experiments. Results: LncRNA MIAT was upregulated in CRC sample and that was positively correlated with IGF1R expression. Loss-of-functional assay suggested that knockdown of MIAT impeded cell activity, migration, invasion, and glycolysis of CRC cells in vivo, along with xenograft growth in vivo. Moreover, silencing of IGF1R inhibited the progression of CRC. Therefore, overexpression of IGF1R could abolish silencing of MIAT-induced effects on CRC cells. Mechanistically, MIAT was a sponge for miR-488-3p, thereby regulating IGF1R expression in CRC. Conclusion: The present study confirmed that the "MIAT/miR-488-3p/IGF1R" pathway was involved in the development of CRC, which may be the target for developing therapeutic approaches for CRC.
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Affiliation(s)
- Yunhua Liu
- Department of Gastroenterology, the First People's Hospital of Tianmen, Hubei, China
| | - Huaiying Peng
- Department of Digestive Endoscopy Room, the First People's Hospital of Tianmen, Hubei, China
| | - Yongxiang Shen
- Department of Gastroenterology, the First People's Hospital of Tianmen, Hubei, China
| | - Rongfeng Da
- Department of Gastroenterology, the First People's Hospital of Tianmen, Hubei, China
| | - Aihua Tian
- Department of Gastroenterology, the First People's Hospital of Tianmen, Hubei, China
| | - Xiaomei Guo
- Department of Computerized Tomography and Magnetic Resonance Imaging Room, the First People's Hospital of Tianmen, Hubei, China
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Competing Endogenous RNAs" (ceRNAs) in Colorectal Cancer: a review article. Expert Rev Mol Med 2022; 24:e27. [PMID: 35748050 DOI: 10.1017/erm.2022.21] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Comprehensive Analyses of Stromal-Immune Score-Related Competing Endogenous RNA Networks In Colon Adenocarcinoma. DISEASE MARKERS 2022; 2022:4235305. [PMID: 35607443 PMCID: PMC9124109 DOI: 10.1155/2022/4235305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/12/2022] [Accepted: 04/21/2022] [Indexed: 12/14/2022]
Abstract
Although recent clinical investigations emphasize the roles of myriad diversities of RNAs in stromal and immune components in the tumor microenvironment, especially in colon adenocarcinoma, however, analyses of “competing endogenous RNAs (ceRNA)” network in association with stromal and immune scores have yet to be determined. This study was conducted to explore the regulatory mechanisms of a stromal-immune score-based ceRNA network in colon adenocarcinoma. Stromal and immune scores of colon adenocarcinoma tumor samples were calculated by using the ESTIMATE algorithm. Differential expression analysis between samples with high/low stromal and immune scores was performed, followed by functional annotation for the overlapping DEmRNAs. The ceRNA network was constructed by differential expression analysis, prediction of RNA-RNA interaction, and correlation with clinicopathological parameters of the patients, which were further verified by external datasets and experiments. Colon adenocarcinoma patients having higher immune scores exhibited prolonged overall survival. RNA dataset analyses from TCGA revealed aberrant expressions of a total of 2052 mRNAs, 108 lncRNAs, and 70 miRNAs between high and low stromal/immune groups. Functional annotation mapped the differentially overexpressed mRNAs for immune-associated GO terms. To construct the ceRNA network, a total of 48 lncRNAs, 40 miRNAs, and 199 mRNAs were sorted out. A dysregulated ceRNA network consisting of 6 lncRNAs, 11 miRNAs, and 39 mRNAs was constructed by comparing RNA expressions between cancer as well as adjacent normal tissues. The ceRNA regulatory axis “MIAT/miR-532-3p/STC1” was regarded as a potential hit by the comprehensive analysis. The RT-qPCR assay showed upregulation of MIAT and STC1 while downregulation of hsa-miR-532-3p expression in cancer. Thus, our study highlights the potential role of a stromal-immune score-based ceRNA network in the colon adenocarcinoma microenvironment. The ceRNA axis MIAT/miR-532-3p/STC1 could serve as a promising therapeutic target for colon adenocarcinoma.
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Mesenchymal Stem Cell Derived Exosomes Suppress Neuronal Cell Ferroptosis Via lncGm36569/miR-5627-5p/FSP1 Axis in Acute Spinal Cord Injury. Stem Cell Rev Rep 2022; 18:1127-1142. [DOI: 10.1007/s12015-022-10327-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/01/2022] [Indexed: 02/08/2023]
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Jhan JH, Hsu WC, Lee YC, Li WM, Huang AM, Lin HH, Wang CS, Wu YR, Li CC, Wu WJ, Ke HL. MicroRNA-375-3p Suppresses Upper Tract Urothelial Carcinoma Cell Migration and Invasion via Targeting Derlin-1. Cancers (Basel) 2022; 14:cancers14040880. [PMID: 35205628 PMCID: PMC8869792 DOI: 10.3390/cancers14040880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/02/2022] [Accepted: 02/08/2022] [Indexed: 02/04/2023] Open
Abstract
Little is known regarding the molecular characterization of upper tract urothelial carcinoma (UTUC). Novel therapeutic targets and prognostic predictors are imminent. In the present study, we aim to examine the oncogenic function and molecular mechanism of Derlin-1 in UTUC. Derlin-1 overexpression is significantly associated with poor prognosis in patients with UTUC. In vitro, knockdown or over-expression of Derlin-1 markedly regulated UTUC cell invasion and migration. We further discovered miR-375-3p suppresses cell invasion and migration by inversely regulating Derlin-1 and blocking EMT in UTUC cells. Taking this together, miR-375-3p functions as a tumor suppressive microRNA by directly targeting Derlin-1 and blocking epithelial-mesenchymal transition (EMT) in UTUC.
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Affiliation(s)
- Jhen-Hao Jhan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-H.J.); (W.-C.H.); (W.-M.L.); (H.-H.L.); (C.-C.L.); (W.-J.W.)
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung 81267, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Wei-Chi Hsu
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-H.J.); (W.-C.H.); (W.-M.L.); (H.-H.L.); (C.-C.L.); (W.-J.W.)
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yi-Chen Lee
- Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Wei-Ming Li
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-H.J.); (W.-C.H.); (W.-M.L.); (H.-H.L.); (C.-C.L.); (W.-J.W.)
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
- Department of Urology, Ministry of Health and Welfare, Pingtung Hospital, Pingtung 90054, Taiwan
| | - A-Mei Huang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Biochemistry, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Hui-Hui Lin
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-H.J.); (W.-C.H.); (W.-M.L.); (H.-H.L.); (C.-C.L.); (W.-J.W.)
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
| | - Chien-Sheng Wang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Yi-Ru Wu
- General Division, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Ching-Chia Li
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-H.J.); (W.-C.H.); (W.-M.L.); (H.-H.L.); (C.-C.L.); (W.-J.W.)
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
| | - Wen-Jeng Wu
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-H.J.); (W.-C.H.); (W.-M.L.); (H.-H.L.); (C.-C.L.); (W.-J.W.)
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Hung-Lung Ke
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (J.-H.J.); (W.-C.H.); (W.-M.L.); (H.-H.L.); (C.-C.L.); (W.-J.W.)
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80145, Taiwan
- Correspondence: ; Tel.: +886-07-3121101 (ext. 6694); Fax: +886-07-3211033
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Sun W, Wu X, Yu P, Zhang Q, Shen L, Chen J, Tong H, Fan M, Shi H, Chen X. LncAABR07025387.1 Enhances Myocardial Ischemia/Reperfusion Injury Via miR-205/ACSL4-Mediated Ferroptosis. Front Cell Dev Biol 2022; 10:672391. [PMID: 35186915 PMCID: PMC8847229 DOI: 10.3389/fcell.2022.672391] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 01/03/2022] [Indexed: 12/27/2022] Open
Abstract
Ferroptosis is associated with the pathology of myocardial ischemia/reperfusion (MI/R) injury following myocardial infarction, which is a leading cause of death worldwide. Although long noncoding RNAs (lncRNAs) are known to regulate gene expression, their roles in MI/R-induced ferroptosis remain unclear. In this study, we explored the lncRNA expression profiles in a rat model of MI/R injury and found that the novel lncRNA, lncAABR07025387.1, was highly expressed in MI/R-injured myocardial tissues and hypoxia/reoxygenation (H/R)-challenged myocardial cells. Silencing lncAABR07025387.1 improved MI/R injury in vivo and inhibited myocardial cell ferroptosis under H/R conditions. Bioinformatics analyses and luciferase, pull-down, and RNA-binding immunoprecipitation assays further revealed that lncAABR07025387.1 interacted with miR-205, which directly targeted ACSL4, a known contributor to ferroptosis. Furthermore, downregulating miR-205 reversed the ACSL4 inhibition induced by silencing lncAABR07025387.1. These findings suggest that, mechanistically, lncAABR07025387.1 negatively regulates miR-205 expression and subsequently upregulates ACSL4-mediated ferroptosis. In conclusion, this study demonstrates that lncAABR07025387.1 acts as a competing endogenous RNA during MI/R injury and highlights the therapeutic potential of lncRNAs for treating myocardial injury.
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Affiliation(s)
- Weixin Sun
- Department of Cardiology, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, China
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiang Wu
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Gerontology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Gerontology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Peng Yu
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Qian Zhang
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Le Shen
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jiandong Chen
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Huaqin Tong
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Manlu Fan
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Haibo Shi
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- Department of Cardiology, Liyang City Hospital of TCM, Changzhou, China
- *Correspondence: Haibo Shi, ; Xiaohu Chen,
| | - Xiaohu Chen
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
- Department of Cardiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Haibo Shi, ; Xiaohu Chen,
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Wang P, Bai C, Hu Z, Li X, Shen F, He M. MicroRNA (miR)-355 Suppressed Small Cell Lung Cancer Cell Metastasis via Regulating P38 Mitogen-Activated Protein Kinases (MAPKs) Signaling. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
MicroRNA (miR)-355 was reported to mediate p38 mitogen-activated protein kinases (MAPKs) signaling, which exerted an effect on cell invasion and metastasis. But whether miR-355 could inhibit small cell lung cancer cell line H446 cell metastasis by regulating p38 MAPKs signaling needs
further study. H446 cells were cultured to establish miR-355 overexpression group and blank group. The expression of MT1-MMP, the activity and migration of H446 cells were evaluated. Further, the ability of invasion, the level of p-p38 MAPKs and the activity degree of MT1-MMP were observed
in H446 cells. MT1-MMP was mainly expressed on the cell membrane. miR-355 overexpression significantly decreased cellular viability and reduced MT1-MMP and p-p38 MAPKs levels relative to the blank group without influencing p38 MAPKs level. In addition, miR-355 overexpression suppressed cell
migration and invasive ability in H446 cells. Finally, miR-355 overexpression reduced pro-MMP and MMP-2 activity in H446 cells. miR-355 overexpression suppressed H446 cell metastasis through regulating P38 MAPKs signaling.
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Affiliation(s)
- Peng Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of the Naval Medical University, Changhai Hospital, Shanghai, 200433, P. R. China
| | - Chong Bai
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of the Naval Medical University, Changhai Hospital, Shanghai, 200433, P. R. China
| | - Zhenli Hu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of the Naval Medical University, Changhai Hospital, Shanghai, 200433, P. R. China
| | - Xingjing Li
- Respiratory Medicine, Wusong Central Hospital, Baoshan District, Shanghai, 200940 P. R. China
| | - Fang Shen
- Respiratory Medicine, Wusong Central Hospital, Baoshan District, Shanghai, 200940 P. R. China
| | - Mudan He
- Respiratory Medicine, Wusong Central Hospital, Baoshan District, Shanghai, 200940 P. R. China
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15
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Ma Z, Lian H, Lin X, Li Y. LncRNA MIAT Promotes Allergic Inflammation and Symptoms by Targeting MiR-10b-5p in Allergic Rhinitis Mice. Am J Rhinol Allergy 2021; 35:781-789. [PMID: 34709954 DOI: 10.1177/1945892421998143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Allergic rhinitis (AR) is one of the most common noninfectious respiratory diseases caused by immunoglobulin E (IgE) response. OBJECTIVE The study sought to explore the relationship between lncRNA MIAT and miR-10b-5p and their interaction in the regulation of allergic phenotypes in allergic rhinitis (AR) mice. METHODS A mice model of AR was constructed using ovalbumin (OVA) sensitization. AR mice were treated with miR-10b-5p agomiR and LNA mediated lncRNA MIAT. The targeting relationship between MIAT and miR-10b-5p was analyzed by the ENCORI website and dual-luciferase reporter assay. The numbers of rubbing and sneezing of mice were counted. Hematoxylin-eosin (HE) staining visualized the eosinophils infiltration in nasal mucosa tissues of mice. The percentage of Th17 cells was quantitated by flow cytometry analysis. ELISA was used to detect the levels of serum OVA-specific IgE, the Th12 cytokine IL-4, and inflammatory cytokines (IL-6, IL-17). RESULTS MIAT was up-regulated in the nasal mucosa of AR mice, while miR-10b-5p was down-regulated. MIAT directly suppressed miR-10b-5p expression in AR mice. The numbers of rubbing and sneezing, the percentage of Th17 cells, and the levels of OVA-specific IgE, IL-4, IL-6, and IL-17 in AR mice were decreased by miR-10b-5p overexpression, which was reversed by MIAT overexpression. The eosinophils infiltration in AR mice was inhibited by miR-10b-5p overexpression, which was also reversed by MIAT overexpression. CONCLUSION The present study demonstrates that MIAT overexpression Promotes allergic inflammation and symptoms by activating Th17 immune response via miR-10b-5p inhibition.
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Affiliation(s)
- Zhiqi Ma
- Department of Otorhinolaryngology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Haijuan Lian
- Hangzhou Medical College, Binjiang District, Hangzhou, China
| | - Xiaoyan Lin
- Department of Otorhinolaryngology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yong Li
- Department of Otorhinolaryngology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
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16
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Wang Y, Fu L, Lu T, Zhang G, Zhang J, Zhao Y, Jin H, Yang K, Cai H. Clinicopathological and Prognostic Significance of Long Non-coding RNA MIAT in Human Cancers: A Review and Meta-Analysis. Front Genet 2021; 12:729768. [PMID: 34659354 PMCID: PMC8514773 DOI: 10.3389/fgene.2021.729768] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 08/13/2021] [Indexed: 12/20/2022] Open
Abstract
Background: Although the treatment of cancer has made evident progress, its morbidity and mortality are still high. A tumor marker is a critical indicator for early cancer diagnosis, and timely cancer detection can efficiently help improve the prognosis of patients. Therefore, it is necessary to identify novel markers associated with cancer. LncRNA myocardial infarction associated transcript (MIAT) is a newly identified tumor marker, and in this study, we aimed to explore the relationship between MIAT and clinicopathological features and patient prognosis. Methods: We searched PubMed, Embase, Web of Science, and The Cochrane Library from inception to September 2020 to identify correlational studies. Then, we extracted valid data and used Stata software to make forest plots. We used the hazard ratio (HR) or odds ratio (OR) with 95% CI to evaluate the relationship between aberrant expression of MIAT and patients' prognosis and clinicopathological features. Results: The study included 21 studies, containing 2,048 patients. Meta-analysis showed that overexpression of lncRNA MIAT was associated with poor overall survival (OS) (HR = 1.60, 95% CI, 1.31–1.96, p < 0.001). In addition, high expression of MIAT could forecast tumor size (OR = 2.26, 95% CI 1.34–3.81, p = 0.002), distant metastasis (OR = 2.54, 95% CI 1.84–3.50, p < 0.001), TNM stage (OR = 2.38, 95% CI 1.36–4.18, p = 0.002), lymph node metastasis (OR = 2.59, 95% CI 1.25–5.36, p = 0.011), and the degree of differentiation (OR = 2.65, 95% CI 1.54–4.58, p < 0.001). However, other clinicopathological features, including age (OR = 1.07, 95% CI 0.87–1.32, p = 0.516), gender (OR = 0.95, 95% CI 0.77–1.19, p = 0.668), and histology (OR = 0.72, 95% CI 0.48–1.10, p = 0.128) were not significantly different from high expression of MIAT. Conclusions: Our study showed that overexpression of MIAT is related to poor overall survival and clinicopathological features. MIAT can be considered a novel tumor marker to help diagnose tumors earlier and improve patient prognosis.
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Affiliation(s)
- Yongfeng Wang
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, China.,General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China.,Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Liangyin Fu
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, China.,General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China.,Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, China
| | - Tingting Lu
- Institution of Clinical Research and Evidence Based Medicine, Gansu Provincial Hospital, Lanzhou, China
| | - Guangming Zhang
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, China.,General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China.,Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, China
| | - Jiawei Zhang
- Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Yuanbin Zhao
- Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Haojie Jin
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Kehu Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Institution of Clinical Research and Evidence Based Medicine, Gansu Provincial Hospital, Lanzhou, China.,Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
| | - Hui Cai
- The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, China.,General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou, China.,Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, China
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LncRNA MIAT Inhibits MPP +-Induced Neuronal Damage Through Regulating the miR-132/SIRT1 Axis in PC12 Cells. Neurochem Res 2021; 46:3365-3374. [PMID: 34514556 DOI: 10.1007/s11064-021-03437-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022]
Abstract
Parkinson's disease (PD) is an age-related neurodegenerative disease caused by the loss of dopaminergic neurons in the substantia nigra. LncRNA MIAT has been shown to be critical in Alzheimer's disease, but its role and mechanism in PD are still unknown. Differentiated PC12 cells were treated with 1-methyl-4-phenylpyridinium (MPP+) to establish in vitro cell injury model of PD. MTT, Annexin V-PI double staining test and Western blot were used to detect cell viability and apoptosis. Reactive oxygen species (ROS), superoxide dismutase (SOD) and phospholipid hydroperoxide glutathione peroxidase (GSH-PX) kits were used to evaluate oxidative stress in cells. These results showed that LncRNA MIAT was down-regulated in MPP+-induced PC12 cells. Overexpression of LncRNA MIAT remarkably increased cell viability, inhibited cell apoptosis and oxidative stress in MPP+-treated cells. In addition, we proved that miR-132 is a target of LncRNA MIAT. Overexpression of miR-132 could reverse the positive effect of LncRNA MIAT overexpression on MPP+-induced cell oxidative stress injury. SIRT1 is a target of miR-132 and silencing of SIRT1 attunated the positive effect of LncRNA MIAT overexpression on oxidative stress injury in MPP+-induced PC12 cells. In conclusion, this study indicated that LncRNA MIAT suppressed MPP+-induced oxidative stress injury by regulating miR-132/SIRT1 axis in PC12 cells.
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18
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Moghbeli M, Zangouei AS, Nasrpour Navaii Z, Taghehchian N. Molecular mechanisms of the microRNA-132 during tumor progressions. Cancer Cell Int 2021; 21:439. [PMID: 34419060 PMCID: PMC8379808 DOI: 10.1186/s12935-021-02149-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 08/13/2021] [Indexed: 12/21/2022] Open
Abstract
Cancer as one of the leading causes of human deaths has always been one of the main health challenges in the world. Despite recent advances in therapeutic and diagnostic methods, there is still a high mortality rate among cancer patients. Late diagnosis is one of the main reasons for the high ratio of cancer related deaths. Therefore, it is required to introduce novel early detection methods. Various molecular mechanisms are associated with the tumor progression and metastasis. MicroRNAs (miRNAs) are a class of non-coding RNAs (ncRNAs) family that has important functions in regulation of the cellular processes such as cell proliferation, apoptosis, and tumor progression. Moreover, they have higher stability in body fluids compared with mRNAs which can be introduced as non-invasive diagnostic markers in cancer patients. MiR-132 has important functions as tumor suppressor or oncogene in different cancers. In the present review, we have summarized all of the studies which have been reported the role of miR-132 during tumor progressions. We categorized the miR-132 target genes based on their cell and molecular functions. Although, it has been reported that the miR-132 mainly functions as a tumor suppressor, it has also oncogenic functions especially in pancreatic tumors. MiR-132 mainly exerts its roles during tumor progressions by regulation of the transcription factors and signaling pathways. Present review clarifies the tumor specific molecular mechanisms of miR-132 to introduce that as an efficient non-invasive diagnostic marker in various cancers.
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Affiliation(s)
- Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Amir Sadra Zangouei
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Nasrpour Navaii
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Negin Taghehchian
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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19
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Lu M, Wu Y, Gao W, Tian Y, Wang G, Liu A, Chen W. Novel Non-coding RNA Analysis in Multiple Myeloma Identified Through High-Throughput Sequencing. Front Genet 2021; 12:625019. [PMID: 34108986 PMCID: PMC8181418 DOI: 10.3389/fgene.2021.625019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 04/06/2021] [Indexed: 12/12/2022] Open
Abstract
This study aimed to explore the potential effects of novel non-coding ribose nucleic acids (ncRNAs) in patients with multiple myeloma (MM). The gene expression profile of plasma cells was used for sequence analysis to explore the expression pattern of ncRNAs in MM. The expression patterns of non-coding RNAs in MM were analyzed by RNA sequencing (whole-transcriptome-specific RNA sequencing). Next, the expression of the selected ncRNAs was verified by quantitative real-time polymerase chain reaction. Further, the lncRNA-associated competitive endogenous RNA network in MM was elucidated using deep RNA-seq. Differentially expressed (DE) ncRNAs were significantly regulated in patients with MM. DE target lncRNAs were analyzed by cis and trans targeting prediction. Two new lncRNAs were shown to be related to MM oncogenes. MSTRG.155519 played a carcinogenic role in myeloma by targeting CEACAM1; MSTRG.13132 was related to FAM46C. Finally, the network of lncRNA–mRNA–miRNA in MM was constructed in this study. The expression of non-coding RNAs through sequence and functional analyses might be helpful for further studies on the pathogenesis of MM and the development of new MM-targeted therapy for non-coding RNAs.
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Affiliation(s)
- Minqiu Lu
- Department of Hematology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Department of Hematology, Beijing Jishuitan Hospital, Fourth Medical College of Peking University, Beijing, China
| | - Yin Wu
- Department of Hematology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Wen Gao
- Department of Hematology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Ying Tian
- Department of Hematology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Guorong Wang
- Department of Hematology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Aijun Liu
- Department of Hematology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Wenming Chen
- Department of Hematology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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20
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Wang J, Sun Y, Liu J, Yang B, Wang T, Zhang Z, Jiang X, Guo Y, Zhang Y. Roles of long non‑coding RNA in osteoarthritis (Review). Int J Mol Med 2021; 48:133. [PMID: 34013375 PMCID: PMC8148092 DOI: 10.3892/ijmm.2021.4966] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/05/2021] [Indexed: 02/01/2023] Open
Abstract
Osteoarthritis (OA) is a chronic bone and joint disease characterized by articular cartilage degeneration and joint inflammation and is the most common form of arthritis. The clinical manifestations of OA are chronic pain and joint activity disorder, which severely affect the patient quality of life. Long non-coding RNA (lncRNA) is a class of RNA molecules >200 nucleotides long that are expressed in animals, plants, yeast, prokaryotes and viruses. lncRNA molecules lack an open reading frame and are not translated into protein. The present review collated the results of recent studies on the role of lncRNA in the pathogenesis of OA to provide information for the prevention, diagnosis and treatment of OA.
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Affiliation(s)
- Jicheng Wang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yanshan Sun
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Jianyong Liu
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Bo Yang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Tengyun Wang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Zhen Zhang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Xin Jiang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yongzhi Guo
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yangyang Zhang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
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21
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Wang M, Liu H, Wu W, Zhao J, Song G, Chen X, Wang R, Shao C, Li J, Wang H, Wang Q, Feng X. Identification of Differentially Expressed Plasma lncRNAs As Potential Biomarkers for Breast Cancer. Clin Breast Cancer 2021; 22:e135-e141. [PMID: 34119428 DOI: 10.1016/j.clbc.2021.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/26/2021] [Accepted: 05/08/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Breast cancer is the most common malignant tumor in women and is not easy to diagnose. Increasing evidence has underscored that long non-coding RNAs (lncRNAs) play important regulatory roles in the occurrence and progression of many cancers, including breast cancer. We aimed to identify lncRNAs in plasma as potential biomarkers for breast cancer. PATIENTS AND METHODS We analyzed the Gene Expression Omnibus (GEO) datasets GSE22820, GSE42568, and GSE65194 to identify the common differential genes between cancer tissues and adjacent tissues. Then 14 lncRNAs were identified among the common differential genes and validated by using real-time quantitative polymerase chain reaction in 92 patients with breast cancer and 100 healthy controls. Receiver operating characteristic (ROC) curves were constructed to evaluate their diagnostic value for breast cancer. RESULTS Integrated analysis of the GEO datasets identified three significantly upregulated and 11 downregulated lncRNAs in breast cancer tissues. Compared with healthy controls, MIAT was significantly upregulated in breast cancer patient plasma, and LINC00968 and LINC01140 were significantly downregulated. ROC curve analysis suggested that these three lncRNAs can discriminate breast cancer from healthy individual with high specificity and sensitivity. CONCLUSION This research identified three differentially expressed lncRNAs in breast cancer patient plasma. Our data suggest that these three lncRNAs can be used as potential diagnostic biomarkers of breast cancer.
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Affiliation(s)
- Minghui Wang
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Huilin Liu
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Wenyao Wu
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Jinxia Zhao
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Guanghui Song
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Xi Chen
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Rong Wang
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Changfeng Shao
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Jing Li
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Haiyan Wang
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Qing Wang
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Xiaodong Feng
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.
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Zhong X, Tao Y, Chang J, Zhang Y, Zhang H, Wang L, Liu Y. Prognostic Signature of Immune Genes and Immune-Related LncRNAs in Neuroblastoma: A Study Based on GEO and TARGET Datasets. Front Oncol 2021; 11:631546. [PMID: 33767996 PMCID: PMC7985261 DOI: 10.3389/fonc.2021.631546] [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: 11/20/2020] [Accepted: 02/02/2021] [Indexed: 12/13/2022] Open
Abstract
Background The prognostic value of immune-related genes and lncRNAs in neuroblastoma has not been elucidated, especially in subgroups with different outcomes. This study aimed to explore immune-related prognostic signatures. Materials and Methods Immune-related prognostic genes and lncRNAs were identified by univariate Cox regression analysis in the training set. The top 20 C-index genes and 17 immune-related lncRNAs were included in prognostic model construction, and random forest and the Least Absolute Shrinkage and Selection Operator (LASSO) regression algorithms were employed to select features. The risk score model was constructed and assessed using the Kaplan-Meier plot and the receiver operating characteristic curve. Functional enrichment analysis of the immune-related lncRNAs was conducted using the STRING database. Results In GSE49710, five immune genes (CDK4, PIK3R1, THRA, MAP2K2, and ULBP2) were included in the risk score five genes (RS5_G) signature, and eleven immune-related lncRNAs (LINC00260, FAM13A1OS, AGPAT4-IT1, DUBR, MIAT, TSC22D1-AS1, DANCR, MIR137HG, ERC2-IT1, LINC01184, LINC00667) were brought into risk score LncRNAs (RS_Lnc) signature. Patients were divided into high/low-risk score groups by the median. Overall survival and event/progression-free survival time were shortened in patients with high scores, both in training and validation cohorts. The same results were found in subgroups. In grouping ability assessment, the area under the curves (AUCs) in distinguishing different groups ranged from 0.737 to 0.94, better in discriminating MYCN status and high risk in training cohort (higher than 0.9). Multivariate Cox analysis demonstrated that RS5_G and RS_Lnc were the independent risk factors for overall and event/progression-free survival (all p-values <0.001). Correlation analysis showed that RS5_G and RS_Lnc were negatively associated with aDC, CD8+ T cells, but positively correlated with Th2 cells. Functional enrichment analyzes demonstrated that immune-related lncRNAs are mainly enriched in cancer-related pathways and immune-related pathways. Conclusion We identified the immune-related prognostic signature RS5_G and RS_Lnc. The predicting and grouping ability is close to being even better than those reported in other studies, especially in subgroups. This study provided prognostic signatures that may help clinicians to choose optimal treatment strategies and showed a new insight for NB treatment. These results need further biological experiments and clinical validation.
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Affiliation(s)
- Xiaodan Zhong
- College of Computer Science and Technology, Jilin University, Changchun, China.,Department of Pediatric Oncology, The First Hospital of Jilin University, Changchun, China.,Key Laboratory of Symbolic Computation and Knowledge Engineering, Ministry of Education, Jilin University, Changchun, China
| | - Ying Tao
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jian Chang
- Department of Pediatric Oncology, The First Hospital of Jilin University, Changchun, China
| | - Yutong Zhang
- Department of Pediatric Oncology, The First Hospital of Jilin University, Changchun, China
| | - Hao Zhang
- College of Computer Science and Technology, Jilin University, Changchun, China.,Key Laboratory of Symbolic Computation and Knowledge Engineering, Ministry of Education, Jilin University, Changchun, China
| | - Linyu Wang
- College of Computer Science and Technology, Jilin University, Changchun, China.,Key Laboratory of Symbolic Computation and Knowledge Engineering, Ministry of Education, Jilin University, Changchun, China
| | - Yuanning Liu
- College of Computer Science and Technology, Jilin University, Changchun, China.,Key Laboratory of Symbolic Computation and Knowledge Engineering, Ministry of Education, Jilin University, Changchun, China
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Zhang W, Wang Z, Cai G, Huang P. Circ_DOCK1 regulates USP11 through miR-132-3p to control colorectal cancer progression. World J Surg Oncol 2021; 19:67. [PMID: 33685455 PMCID: PMC7941900 DOI: 10.1186/s12957-021-02173-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/18/2021] [Indexed: 12/12/2022] Open
Abstract
Background Circular RNAs (circRNAs) take part in colorectal cancer malignancies. CircRNA dedicator of cytokinesis 1 (circ_DOCK1) is involved in colorectal cancer progression, but the mechanism underlying this circRNA that takes part in colorectal cancer development remains largely undetermined. Methods Tumor and normal para-cancerous tissues were collected from 42 colorectal cancer patients. Human colorectal cancer cell lines (HCT116 and SW480) were used for the experiments in vitro. Circ_DOCK1, microRNA (miR)-132-3p, and ubiquitin-specific protease 11 (USP11) levels were measured through quantitative real-time polymerase chain reaction and Western blotting. Cell growth, metastasis, and apoptosis were investigated via colony formation, 5-ethynyl-2′-deoxyuridine (EdU) staining, MTT, flow cytometry, Western blotting, and transwell analyses. The target association was evaluated via dual-luciferase reporter analysis, RNA pull-down, and immunoprecipitation (RIP). Xenograft assay was performed using HCT116 cells. USP11 and Ki67 levels in tumor tissues were detected via immunohistochemistry. Results Circ_DOCK1 expression was enhanced in colorectal cancer tissues and cells. Silencing circ_DOCK1 repressed cell growth, migration, and invasion, and facilitated apoptosis. Circ_DOCK1 sponged miR-132-3p, and miR-132-3p silence mitigated the effect of circ_DOCK1 interference on cell growth, metastasis, and apoptosis. MiR-132-3p targeted USP11, and circ_DOCK1 could regulate USP11 level by miR-132-3p. MiR-132-3p suppressed cell growth, metastasis, and apoptosis, and USP11 attenuated these effects. Knockdown of circ_DOCK1 decreased colorectal cancer cell xenograft tumor growth. Conclusion Circ_DOCK1 interference suppressed cell growth and metastasis, and increased apoptosis of colorectal cancer via decreasing USP11 by increasing miR-132-3p. Supplementary Information The online version contains supplementary material available at 10.1186/s12957-021-02173-x.
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Affiliation(s)
- Weitong Zhang
- Department of Anorectal Surgery, Hainan General Hospital, No. 19 Xiuhua Road, Haikou, 570311, Hainan, China
| | - Zhenfen Wang
- Department of Anorectal Surgery, Hainan General Hospital, No. 19 Xiuhua Road, Haikou, 570311, Hainan, China
| | - Guohao Cai
- Department of Anorectal Surgery, Hainan General Hospital, No. 19 Xiuhua Road, Haikou, 570311, Hainan, China
| | - Ping Huang
- Department of Anorectal Surgery, Hainan General Hospital, No. 19 Xiuhua Road, Haikou, 570311, Hainan, China.
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The Role, Function, and Mechanism of Long Intergenic Noncoding RNA1184 (linc01184) in Colorectal Cancer. DISEASE MARKERS 2021; 2021:8897906. [PMID: 33564344 PMCID: PMC7867457 DOI: 10.1155/2021/8897906] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/21/2021] [Indexed: 01/07/2023]
Abstract
Background Long intergenic noncoding RNA1184 (linc01184) has been recently discovered; however, its role in human diseases is limited to date. The present study is aimed at investigating the expression pattern and mechanism of linc01184 in colorectal cancer (CRC) tumorigenesis. Methods The expression of linc01184 in CRC tissues and cell lines was compared with that in normal controls. The functions of linc01184 in CRC cells were identified by overexpression and small interfering RNA (siRNA) approaches in vitro. Meanwhile, the target gene prediction software, luciferase reporter, RNA pull-down, and western blotting assays were used to analyze the oncogenic mechanism. Results We found that linc01184 was obviously upregulated in CRC tissues and cells when compared to normal controls, and its upregulation had a positive association with the CRC progression. linc01184 knockdown significantly suppressed CRC cell proliferation and invasion and promoted apoptosis. Besides, linc01184 acted as a competitive endogenous RNA (ceRNA) by directly binding to microRNA-331 (miR-331), and its overexpression resulted in notable increases of human epidermal growth factor receptor 2 (HER2), phosphorylated Ser/Thr kinases (p-Akt), and extracellular regulated protein kinase 1/2 (p-ERK1/2) at posttranscriptional levels in CRC cells, which were antagonized by miR-331. Conclusions The findings reveal for the first time that linc01184 is an enhancer for the proliferation and invasion of CRC by functioning as a ceRNA through the linc01184-miR-331-HER2-p-Akt/ERK1/2 pathway regulatory network.
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Song F, Yang Y, Liu J. Long non-coding RNA MIAT promotes the proliferation and invasion of laryngeal squamous cell carcinoma cells by sponging microRNA-613. Exp Ther Med 2021; 21:232. [PMID: 33603840 PMCID: PMC7851618 DOI: 10.3892/etm.2021.9663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 11/24/2020] [Indexed: 12/24/2022] Open
Abstract
Accumulating evidence indicates that the long non-coding RNA myocardial infarction associated transcript (lncRNA MIAT) serves an important role in the progression of a number of cancer types. However, the precise molecular mechanism of MIAT in laryngeal squamous cell carcinoma (LSCC) progression remain elusive. The aim of the current study was to assess the effects and to clarify the molecular mechanism of MIAT on the proliferation and invasion of LSCC cells. The expression of MIAT was detected in LSCC tissues and cells using reverse transcription-quantitative PCR. MTT and colony formation assays were performed to examine the effects of MIAT on the proliferation of LSCC cells. Additionally, wound healing and Transwell experiments were employed to examine cellular migration and invasion. Luciferase reporter gene assay was also used to confirm the direct binding between MIAT and microRNA (miR)-613 in LSCC cells. An RNA immunoprecipitation assay was performed to verify the interaction between MIAT and miR-613. In the present study, it was found that the expression of MIAT in LSCC tissues was markedly higher compared with that in adjacent non-tumor tissues. In addition, MIAT expression was also increased in the human LSCC cell lines TU686, TU-177 and AMC-HN-8 compared with that in normal human keratinocytes (HaCaT). Knocking down MIAT expression significantly reduced LSCC cell proliferation and inhibited colony formation, a shown by MTT and colony formation assays, respectively. MIAT knockdown also substantially inhibited the migratory and invasive abilities of LSCC cells, as shown by wound healing and Transwell invasion assays, respectively. Subsequently, luciferase reporter assays verified that MIAT could bind to miR-613, where a negative correlation was observed between the expression of MIAT and miR-613 in LSCC tissues. Suppression of miR-613 partially reversed the inhibitory effects of MIAT knockdown on the proliferation, migration and invasion of LSCC cells. Taken together, the present study identified that MIAT may function as an oncogenic lncRNA to promote LSCC progression, which provides a potential therapeutic target or as a novel diagnostic biomarker for LSCC.
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Affiliation(s)
- Fucun Song
- Department of Otolaryngology Head and Neck Surgery, Tianjin Union Medical Center, Tianjin 300121, P.R. China
| | - Yang Yang
- Department of Otolaryngology Head and Neck Surgery, Tianjin Union Medical Center, Tianjin 300121, P.R. China
| | - Jixiang Liu
- Department of Otolaryngology Head and Neck Surgery, Tianjin Union Medical Center, Tianjin 300121, P.R. China
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26
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Song D, Wu S, Hu H, Dai X, Wang X. Long Noncoding RNA MIAT Regulates the Process of Laryngeal Squamous Cell Carcinoma Through Regulation of miR-147a/BCOR. Arch Med Res 2021; 52:371-379. [PMID: 33419582 DOI: 10.1016/j.arcmed.2020.12.001] [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] [Received: 11/10/2019] [Revised: 11/19/2020] [Accepted: 12/03/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND Myocardial infarction associated transcript (MIAT) is a long non-coding RNA (lncRNA) that can play oncogenic role in different kinds of cancers. However, its role in laryngeal squamous cell carcinoma (LSCC) remains unknown. AIM The study aimed to explore the effect of MIAT/miR-147a/BCOR axis on LSCC progression. METHODS The expression pattern of MIAT, miR-147a and BCOR in LSCC samples and cells was identified through qRT-PCR. The proliferation of LSCC cells was assessed by colony formation assay and CCK-8 assays. Transwell assays were implemented to test the migratory and invasive abilities of LSCC cells. Proteins associated with migration and epithelial-mesenchymal transition were probed in transfected LSCC cells by western blot. The interaction of miR-147a with MIAT or BCOR was analyzed by luciferase reporter assays, RNA pulls down assays and Ago2-RIP assays. RESULTS High MIAT expression was closely correlated with unfavorable prognosis. MIAT knockdown inhibited cell proliferation, migration, invasion and EMT progress in LSCC. MIAT acted as a miR-147a sponge to increase the expression of BCOR. Silencing of MIAT suppressed LSCC progression through miR-147a/BCOR axis. CONCLUSION MIAT acts as an oncogene by controlling miR-147a/BCOR axis in LSCC.
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Affiliation(s)
- Daoliang Song
- Otolaryngology Head and Neck Surgery, Zibo Central Hospital, Zibo, Shandong, China
| | - Shuo Wu
- The Third Affiliated Hospital, Sun Yat-sen University School of Life Science, Sun Yat-sen University, Tianhe District, Guangzhou, Guangdong, China
| | - Huihua Hu
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Zengdu District, Suizhou, Hubei, China
| | - Xinyi Dai
- The Third Affiliated Hospital, Sun Yat-sen University School of Life Science, Sun Yat-sen University, Tianhe District, Guangzhou, Guangdong, China
| | - Xiaocong Wang
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Zengdu District, Suizhou, Hubei, China.
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27
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Di Y, Wang Y, Wang X, Nie QZ. Effects of long non-coding RNA myocardial infarction-associated transcript on retinal neovascularization in a newborn mouse model of oxygen-induced retinopathy. Neural Regen Res 2021; 16:1877-1881. [PMID: 33510096 PMCID: PMC8328761 DOI: 10.4103/1673-5374.306098] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Whether long non-coding RNA myocardial infarction-associated transcript is involved in oxygen-induced retinopathy remains poorly understood. To validate this hypothesis, we established a newborn mouse model of oxygen-induced retinopathy by feeding in an oxygen concentration of 75 ± 2% from postnatal day 8 to postnatal day 12, followed by in normal air. On postnatal day 11, the mice were injected with the myocardial infarction-associated transcript siRNA plasmid via the vitreous cavity to knockdown long non-coding RNA myocardial infarction-associated transcript. Myocardial infarction-associated transcript siRNA transcription significantly inhibited myocardial infarction-associated transcript mRNA expression, reduced the phosphatidylinosital-3-kinase, phosphorylated Akt and vascular endothelial growth factor immunopositivities, protein and mRNA expression, and alleviated the pathological damage to the retina of oxygen-induced retinopathy mouse models. These findings suggest that myocardial infarction-associated transcript is likely involved in the retinal neovascularization in retinopathy of prematurity and that inhibition of myocardial infarction-associated transcript can downregulate phosphatidylinosital-3-kinase, phosphorylated Akt and vascular endothelial growth factor expression levels and inhibit neovascularization. This study was approved by the Animal Ethics Committee of Shengjing Hospital of China Medical University, China (approval No. 2016PS074K) on February 25, 2016.
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Affiliation(s)
- Yu Di
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yue Wang
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Xue Wang
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Qing-Zhu Nie
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
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Ghafouri-Fard S, Azimi T, Taheri M. Myocardial Infarction Associated Transcript (MIAT): Review of its impact in the tumorigenesis. Biomed Pharmacother 2020; 133:111040. [PMID: 33378948 DOI: 10.1016/j.biopha.2020.111040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/09/2020] [Accepted: 11/16/2020] [Indexed: 12/22/2022] Open
Abstract
Myocardial Infarction Associated Transcript (MIAT) is a non-coding transcript which is located on chromosome 22q12.1. This lncRNA can regulate expression of genes at both transcriptional and post-transcriptional stages. It has been firstly recognized as a susceptibility locus for myocardial infarction. Subsequently, its role in the development of several human cancers has been acknowledged. Numerous researches have reported the impact of MIAT silencing on the reduction of cell viability, proliferation and invasion while enhancement of cellular senescence and apoptosis. Consistently, investigations in the xenograft models have verified MIAT role in the promotion of tumor growth. Numerous microRNAs such as miR-214, miR-22-3p, miR-520d-3p, miR-203a, miR-29a-3p, miR-141, miR-150, miR-302, miR-29, and miR-155-5p have functional interactions with this lncRNA. Moreover, dysregulation of MIAT has been associated with abnormal activity of numerous cancer-related signaling cascades such as Hippo, PI3K/Akt/c-Met and Wnt/β-catenin. In the current review, we explain the role of MIAT in the cancer evolution based on the outcomes of in vitro, in vivo and clinical studies.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tahereh Azimi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Li XM, Jiao YY, Luan BH, Wu HX, Wang RR, Zhong J. Long non-coding RNA MIAT promotes gastric cancer proliferation and metastasis via modulating the miR-331-3p/RAB5B pathway. Oncol Lett 2020; 20:355. [PMID: 33154765 PMCID: PMC7608069 DOI: 10.3892/ol.2020.12219] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 07/24/2020] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer (GC) remains a threat to the health of the global population. The present study investigated the effects and mechanisms of the long non-coding RNA myocardial infarction associated transcript (MIAT) on the proliferation, apoptosis and metastasis of GC (HGC-27 and AGS) cells. The expression levels of MIAT, micoRNA (miR)-331-3p and RAB5B mRNA were analyzed using reverse transcription-quantitative PCR analysis. Cell growth, apoptosis, migration and invasion were measured using 5-ethynyl-2′-deoxyuridine, flow cytometry, wound healing and Transwell assays, respectively. A luciferase assay was used to determine whether miR-331-3p targeted MIAT and RAB5B. The results indicated that MIAT levels were significantly upregulated in GC tissues and cells, correlated with RAB5B levels and inversely associated with miR-331-3p levels. MIAT overexpression promoted proliferation and metastasis, and inhibited the apoptosis of GC cells. MIAT knockdown had the opposite effect on GC cells. The rescue experiments revealed that the effects of MIAT knockdown on the biological behaviour of GC cells were attenuated by RAB5B overexpression. These data suggest that MIAT promotes GC progression via modulating miR-331-3p/RAB5B pathway.
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Affiliation(s)
- Xiao-Mei Li
- Department of Oncology, Qing Dao Cheng Yang People's Hospital, Qingdao, Shandong 266109, P.R. China
| | - Yan-Yan Jiao
- Department of Oncology, Qing Dao Cheng Yang People's Hospital, Qingdao, Shandong 266109, P.R. China
| | - Bao-Hong Luan
- Department of Oncology, Qing Dao Cheng Yang People's Hospital, Qingdao, Shandong 266109, P.R. China
| | - Hong-Xia Wu
- Department of Oncology, Qing Dao Cheng Yang People's Hospital, Qingdao, Shandong 266109, P.R. China
| | - Rong-Rong Wang
- Department of Oncology, Qing Dao Cheng Yang People's Hospital, Qingdao, Shandong 266109, P.R. China
| | - Jie Zhong
- Department of Interventional Radiography, Qing Dao Cheng Yang People's Hospital, Qingdao, Shandong 266109, P.R. China
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Xiao MZ, Liu JM, Xian CL, Chen KY, Liu ZQ, Cheng YY. Therapeutic potential of ALKB homologs for cardiovascular disease. Biomed Pharmacother 2020; 131:110645. [PMID: 32942149 DOI: 10.1016/j.biopha.2020.110645] [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: 05/27/2020] [Revised: 08/05/2020] [Accepted: 08/16/2020] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases (CVDs) are the leading causes of human death. Recently, ALKB homologs, including ALKBH1-8 and FTO, have been found to have a variety of biological functions, such as histone demethylation, RNA demethylation, and DNA demethylation. These functions may regulate the physiological and pathological processes of CVDs, including inflammation, oxidative stress, cell apoptosis, and mitochondrial, endothelial, and fat metabolism dysfunction. In the present review, we summarize the biological functions of ALKB homologs and the relationship between the ALKB homologs and CVDs. Importantly, we discuss the roles of ALKB homologs in the regulation of oxidative stress, inflammation, autophagy, and DNA damage in CVDs, as well as the practical applications of ALKB homologs inhibitors or agonists in treating CVDs. In conclusion, the ALKBH family might be a promising target for CVDs therapy.
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Affiliation(s)
- Ming-Zhu Xiao
- Guangdong Key Laboratory for Translational Cancer Research of Chinese Medicine, Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China; School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jia-Ming Liu
- Guangdong Key Laboratory for Translational Cancer Research of Chinese Medicine, Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China; School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Cui-Ling Xian
- Guangdong Key Laboratory for Translational Cancer Research of Chinese Medicine, Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China; School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Keng-Yu Chen
- Guangdong Key Laboratory for Translational Cancer Research of Chinese Medicine, Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China; The Second Affiliated Hospital of Guangdong Pharmaceutical University, Yunfu, 527300, China
| | - Zhong-Qiu Liu
- Guangdong Key Laboratory for Translational Cancer Research of Chinese Medicine, Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China.
| | - Yuan-Yuan Cheng
- Guangdong Key Laboratory for Translational Cancer Research of Chinese Medicine, Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China.
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Effect of LncRNA MIAT on Prognosis of Hand-assisted Laparoscopic or Laparoscopic-assisted Colectomy for Colorectal Cancer. Surg Laparosc Endosc Percutan Tech 2020; 29:456-461. [PMID: 31567876 DOI: 10.1097/sle.0000000000000728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE The current study aims to explore the effect of myocardial infarction associated transcript (MIAT) level on the long-term prognosis of hand-assisted laparoscopic colectomy (HALC) or laparoscopic-assisted colectomy (LAC) for colorectal cancer (CC). MATERIALS AND METHODS A total of 320 CC patients were included. Patients were randomized into HALC and LAC group. RESULTS MIAT level in CC tissue was upregulated, and had a significant positive association with its level in serum. MIAT levels in both CC tissue and serum were correlated with lymph node metastasis and histologic grading. Survival analysis showed that the overall survival rate in 3 years after operation was significantly lower in HALC-High MIAT group (P<0.05). When MIAT level is <10.9 in CC tissue or 8.7 in serum, 100% of patients who underwent HALC will be alive for >3 years. CONCLUSIONS For patients with low MIAT level, both HALC and LAC are available, otherwise, LAC is more recommended.
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Ala U. Competing Endogenous RNAs, Non-Coding RNAs and Diseases: An Intertwined Story. Cells 2020; 9:E1574. [PMID: 32605220 PMCID: PMC7407898 DOI: 10.3390/cells9071574] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/18/2020] [Accepted: 06/23/2020] [Indexed: 01/17/2023] Open
Abstract
MicroRNAs (miRNAs), a class of small non-coding RNA molecules, are responsible for RNA silencing and post-transcriptional regulation of gene expression. They can mediate a fine-tuned crosstalk among coding and non-coding RNA molecules sharing miRNA response elements (MREs). In a suitable environment, both coding and non-coding RNA molecules can be targeted by the same miRNAs and can indirectly regulate each other by competing for them. These RNAs, otherwise known as competing endogenous RNAs (ceRNAs), lead to an additional post-transcriptional regulatory layer, where non-coding RNAs can find new significance. The miRNA-mediated interplay among different types of RNA molecules has been observed in many different contexts. The analyses of ceRNA networks in cancer and other pathologies, as well as in other physiological conditions, provide new opportunities for interpreting omics data for the field of personalized medicine. The development of novel computational tools, providing putative predictions of ceRNA interactions, is a rapidly growing field of interest. In this review, I discuss and present the current knowledge of the ceRNA mechanism and its implications in a broad spectrum of different pathologies, such as cardiovascular or autoimmune diseases, cancers and neurodegenerative disorders.
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Affiliation(s)
- Ugo Ala
- Department of Veterinary Sciences, University of Turin, 10124 Turin, Italy
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Kesherwani V, Shukla M, Coulter DW, Sharp JG, Joshi SS, Chaturvedi NK. Long non-coding RNA profiling of pediatric Medulloblastoma. BMC Med Genomics 2020; 13:87. [PMID: 32591022 PMCID: PMC7318516 DOI: 10.1186/s12920-020-00744-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/19/2020] [Indexed: 02/06/2023] Open
Abstract
Background Medulloblastoma (MB) is one of the most common malignant cancers in children. MB is primarily classified into four subgroups based on molecular and clinical characteristics as (1) WNT (2) Sonic-hedgehog (SHH) (3) Group 3 (4) Group 4. Molecular characteristics used for MB classification are based on genomic and mRNAs profiles. MB subgroups share genomic and mRNA profiles and require multiple molecular markers for differentiation from each other. Long non-coding RNAs (lncRNAs) are more than 200 nucleotide long RNAs and primarily involve in gene regulation at epigenetic and post-transcriptional levels. LncRNAs have been recognized as diagnostic and prognostic markers in several cancers. However, the lncRNA expression profile of MB is unknown. Methods We used the publicly available gene expression datasets for the profiling of lncRNA expression across MB subgroups. Functional analysis of differentially expressed lncRNAs was accomplished by Ingenuity pathway analysis (IPA). Results In the current study, we have identified and validated the lncRNA expression profile across pediatric MB subgroups and associated molecular pathways. We have also identified the prognostic significance of lncRNAs and unique lncRNAs associated with each MB subgroup. Conclusions Identified lncRNAs can be used as single biomarkers for molecular identification of MB subgroups that warrant further investigation and functional validation.
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Affiliation(s)
- Varun Kesherwani
- Child Health Research Institute, University of Nebraska Medical Center, Omaha, NE, 69198, USA
| | - Mamta Shukla
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, 69198, USA
| | - Don W Coulter
- Department of Pediatrics, Hematology and Oncology Division, University of Nebraska Medical Center, Omaha, NE, 986395, USA
| | - J Graham Sharp
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, 69198, USA
| | - Shantaram S Joshi
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, 69198, USA
| | - Nagendra K Chaturvedi
- Department of Pediatrics, Hematology and Oncology Division, University of Nebraska Medical Center, Omaha, NE, 986395, USA. .,Nebraska Medical Center, Omaha, NE, USA.
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Xu S, Wang Q, Kang Y, Liu J, Yin Y, Liu L, Wu H, Li S, Sui S, Shen M, Zheng W, Pang D. Long Noncoding RNAs Control the Modulation of Immune Checkpoint Molecules in Cancer. Cancer Immunol Res 2020; 8:937-951. [PMID: 32321773 DOI: 10.1158/2326-6066.cir-19-0696] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 02/01/2020] [Accepted: 04/15/2020] [Indexed: 12/15/2022]
Abstract
Long noncoding RNAs (lncRNA) that are associated with immune checkpoints have not been identified, and the mechanism by which such lncRNAs might regulate the expression of immune checkpoints is unknown in human cancer. Immune checkpoint-associated lncRNAs (ICP-lncRNA) were identified and validated via a comprehensive bioinformatic analysis of The Cancer Genome Atlas data. These ICP-lncRNAs were involved in key immune response and immune cell receptor signaling pathways. The expression of ICP-lncRNAs was upregulated and correlated with a poor prognosis in patients with cancer. HLA complex P5 (HCP5) and myocardial infarction associated transcript (MIAT) promoted tumor growth and upregulated the expression of PD-L1/CD274 via a competing endogenous RNA mechanism of sponging miR-150-5p. The combination of MIAT knockdown and PD-L1 antibody administration showed a synergistic inhibitory effect on tumor growth. Finally, the expression of both HCP5 and MIAT was confirmed to be transcriptionally suppressed by CCCTC-binding factor (CTCF), and lipopolysaccharide induced CTCF eviction from the HCP5 and MIAT promoters, attenuating the transcriptionally suppressive activity of CTCF. This study enlarges the functional landscape of known lncRNAs in human cancer and indicates novel insights into their roles in the field of tumor immunity and immunotherapy. These findings may aid in the comprehensive management of human cancer with immunotherapy.
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Affiliation(s)
- Shouping Xu
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Qin Wang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Yujuan Kang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Jiena Liu
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Yanling Yin
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Lei Liu
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Hao Wu
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Siwei Li
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Shiyao Sui
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Meiying Shen
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Wei Zheng
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Da Pang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China. .,Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang, China
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Screening of a Novel Upregulated lncRNA, A2M-AS1, That Promotes Invasion and Migration and Signifies Poor Prognosis in Breast Cancer. BIOMED RESEARCH INTERNATIONAL 2020; 2020:9747826. [PMID: 32352014 PMCID: PMC7171613 DOI: 10.1155/2020/9747826] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/26/2019] [Accepted: 10/11/2019] [Indexed: 12/25/2022]
Abstract
Understanding of prognostic factors and therapeutic targets for breast cancer is imperative for guidance of patient care. We studied 1203 tumour samples from the Gene Expression Omnibus (GEO) to evaluate potential genes related to breast cancer. R software was used to analyse differentially expressed long noncoding RNAs (lncRNAs) in the RNA microarray expression profiles GSE45827 and GSE65216 and to identify a series of differentially expressed lncRNAs associated with human breast cancer. Of these lncRNAs, A2M-AS1, a lncRNA that has not been previously reported, was significantly upregulated in human breast cancer tissues compared with adjacent nontumour tissues. Importantly, A2M-AS1 upregulation was significantly associated with ER-negative, HER2-positive, and basal-like breast cancer and with poor recurrence-free survival and metastasis-free survival in breast cancer patients. After validating these results in 96 collected human breast cancer tissues and 64 paired adjacent noncancerous tissues, we further investigated the roles of A2M-AS1 in human ER-negative and basal-like breast cancer cells. The results revealed that A2M-AS1 significantly promotes human breast cancer cell proliferation, invasion, and migration. Additionally, bioinformatics analysis of genes coexpressed with A2M-AS1 in the context of human breast cancer combined with qRT-PCR and Western blot assays revealed that A2M-AS1 exerts regulatory effects on downstream factors in the cell adhesion molecule pathway, including CD2 and SELL. These results imply that A2M-AS1 might be a promising candidate prognostic factor and therapeutic target for breast cancer.
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Xu H, Zhou J, Tang J, Min X, Yi T, Zhao J, Ren Y. Identification of serum exosomal lncRNA MIAT as a novel diagnostic and prognostic biomarker for gastric cancer. J Clin Lab Anal 2020; 34:e23323. [PMID: 32274858 PMCID: PMC7439433 DOI: 10.1002/jcla.23323] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/07/2020] [Accepted: 03/09/2020] [Indexed: 02/06/2023] Open
Abstract
Background Accumulating evidence has demonstrated that long non‐coding RNAs (lncRNAs) MIAT is significantly upregulated in many cancer types including gastric cancer (GC). However, the potential clinical significance of serum exosomal MIAT in GC is unknown. Methods In this study, a total of 109 GC patients, 48 gastric adenoma patients, and 50 healthy individuals were recruited. Serum exosomal MIAT levels were detected in all participants using quantitative real‐time reverse transcription‐polymerase chain reaction (qRT‐PCR). Results The exosomes we extracted from the serum samples were positive for TSG101, CD63, and Flotillin‐1, which were known exosome markers. Serum exosomal MIAT levels were significantly higher in GC patients than in gastric adenoma patients and healthy controls. Interestingly, gastric adenoma patients with higher serum exosomal MIAT expression were more prone to develop GC. In addition, serum exosomal MIAT levels were significantly decreased in post‐treatment blood samples compared to pre‐treatment samples, while markedly increased in the cases suffering recurrence. Moreover, serum exosomal MIAT upregulation was significantly associated with worse clinical variables and shorter survival. Furthermore, serum exosomal MIAT was identified as an independent prognostic factor for GC. Conclusions Collectively, serum exosomal lncRNA MIAT might serve as a promising novel biomarker for monitoring the progression of GC.
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Affiliation(s)
- Hao Xu
- Department of Interventional Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Jie Zhou
- Department of Hepatobiliary Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Jin Tang
- Department of Gastrointestinal Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xuli Min
- Department of Interventional Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Tingting Yi
- Department of Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Jing Zhao
- Department of Interventional Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yongjun Ren
- Department of Interventional Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
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Zhou S, Xu A, Song T, Gao F, Sun H, Kong X. lncRNA MIAT Regulates Cell Growth, Migration, and Invasion Through Sponging miR-150-5p in Ovarian Cancer. Cancer Biother Radiopharm 2020; 35:650-660. [PMID: 32186927 DOI: 10.1089/cbr.2019.3259] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background: MIAT (myocardial infarction-associated transcript) regulates cell proliferation, apoptosis, and metastasis in several cancers. In this study, the authors aimed to explore the role of MIAT in ovarian cancer. Materials and Methods: The expression of MIAT in ovarian cancer subtypes, normal human ovarian surface epithelial and ovarian cancer cell lines was measured by qualitative real-time polymerase chain reaction (qRT-PCR). OVCAR3 and SKOV3 cells were transfected with MIAT overexpression plasmid or siMIAT. The cell growth ability was then evaluated by CCK-8 and colony formation assays. The cell migration and invasion rate were separately measured by wound-healing and transwell assays. The levels of epithelial-mesenchymal transition (EMT)-associated markers were evaluated by Western blotting. MIAT sponging miR-150-5p was predicted by starBase and confirmed by dual-luciferase reporter assays. The expression of miR-150-5p in OVCAR3 and SKOV3 cells with MIAT overexpression or knockdown, and in ovarian cancer subtypes was also measured by qRT-PCR. Further analyses confirmed the role of MIAT sponging miR-150-5p in ovarian cancer cells. Results: MIAT was highly expressed in mesenchymal subtype ovarian cancer tissues and ovarian cancer cells. In OVCAR3 and SKOV3 cells, overexpression of MIAT promoted, and knockdown of MIAT suppressed the cell growth, migration, invasion, and EMT. miR-150-5p was sponged and regulated by MIAT. miR-150-5p was downregulated in mesenchymal subtype ovarian cancer. Suppression of cell migration, invasion, and EMT caused by miR-150-5p overexpression was rescued by MIAT overexpression. Conclusions: MIAT acts as an oncogene in ovarian cancer cells through sponging miR-150-5p. MIAT or miR-150-5p expression might be a potential prognostic biomarker for ovarian cancer patients. MIAT and miR-150-5p are potential therapeutic targets in treatment of ovarian cancer.
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Affiliation(s)
- Suiyang Zhou
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Aili Xu
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Tiefang Song
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Fei Gao
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Haizhu Sun
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xianchao Kong
- Department of Gynaecology and Obstetrics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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The long non-coding RNA MIAT/miR-139-5p/MMP2 axis regulates cell migration and invasion in non-small-cell lung cancer. J Biosci 2020. [DOI: 10.1007/s12038-020-0019-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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39
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Zhang W, Chen Q, Lei C. lncRNA MIAT promotes cell invasion and migration in esophageal cancer. Exp Ther Med 2020; 19:3267-3274. [PMID: 32266022 PMCID: PMC7132222 DOI: 10.3892/etm.2020.8588] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 02/22/2019] [Indexed: 12/12/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) serve crucial roles in carcinogenesis. Myocardial infarction-associated transcript (MIAT), originally isolated as a candidate gene for myocardial infarction, has been revealed to serve as an oncogene in chronic lymphocytic leukaemias and neuroendocrine prostate cancer. However, little is known about its expression pattern, biological function and underlying mechanism in esophageal cancer. Cell lines of esophageal cancer were used in the current study. The results of the present study revealed that MIAT knockdown decreased cell viability, migration, invasion and cell cycle arrest in the G1 phase. Mechanistic assessment revealed that MIAT interacts with histone methyltransferase mixed-lineage leukemia (MLL). The relative proteins expressions were measured by western blotting assay. MIAT knockdown suppressed cell invasion and migration by regulation MMP-2/9 protein expressions. The results of the current study indicated that MIAT expression was associated with esophageal cancer and may serve as a critical target in the progression and metastasis in esophageal cancer.
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Affiliation(s)
- Weiguo Zhang
- Department of Surgical Oncology, First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Qiang Chen
- Department of Surgical Oncology, First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Caipeng Lei
- Department of Surgical Oncology, First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
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40
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Chang W, Wang Y, Li W, Geng Z. Long non-coding RNA myocardial infarction associated transcript promotes the proliferation of cholangiocarcinoma cells by targeting miR-551b-3p/CCND1 axis. Clin Exp Pharmacol Physiol 2020; 47:1067-1075. [PMID: 32064660 DOI: 10.1111/1440-1681.13283] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 12/13/2022]
Abstract
Accumulating reports have demonstrated that long non-coding RNAs (lncRNAs) play critical roles in the occurrence and metastasis of cholangiocarcinoma (CCA). LncRNA myocardial infarction associated transcript (MIAT) has been widely reported in hepatocellular carcinoma, pancreatic cancer and colorectal cancer, but the relationship between MIAT and CCA progression has not yet been investigated. In the present study, we found that the expression of MIAT in CCA tissues was prominently higher than that in normal bile duct tissues. Moreover, TCGA-CHOL data in the GEPIA platform further revealed the upregulated expression of MIAT in CCA tissues. Additionally, quantitative real-time PCR results showed that MIAT expression was increased in CCA cell lines compared to the human intrahepatic biliary epithelial cell line. Functionally, MIAT knockdown significantly inhibited cell proliferation and induced G0/G1 phase arrest as well as apoptosis in HuCCT-1 and QBC939 cells. Conversely, ectopic expression of MIAT obviously facilitated the proliferation, cell cycle progression and apoptosis resistance of RBE cells. Mechanistically, MIAT directly interacted with miR-551b-3p and inversely modulated miR-551-3p level in CCA cells. Furthermore, MIAT knockdown reduced the expression of cyclin D1 (CCND1), which was rescued by miR-551b-3p silencing in HuCCT-1 cells. Importantly, CCND1 restoration partially reversed MIAT knockdown-induced proliferation inhibition, G0/G1 phase arrest and apoptosis in HuCCT-1 cells. In conclusion, MIAT was frequently overexpressed in CCA. MIAT contributed to the growth of CCA cells by targeting miR-551b-3p/CCND1 axis.
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Affiliation(s)
- Weiping Chang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of General Surgery, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Yuan Wang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - WenZhi Li
- Chang'an District Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhimin Geng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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41
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Li Y, Jiang T, Zhou W, Li J, Li X, Wang Q, Jin X, Yin J, Chen L, Zhang Y, Xu J, Li X. Pan-cancer characterization of immune-related lncRNAs identifies potential oncogenic biomarkers. Nat Commun 2020; 11:1000. [PMID: 32081859 PMCID: PMC7035327 DOI: 10.1038/s41467-020-14802-2] [Citation(s) in RCA: 270] [Impact Index Per Article: 67.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 02/03/2020] [Indexed: 12/18/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are emerging as critical regulators of gene expression and they play fundamental roles in immune regulation. Here we introduce an integrated algorithm, ImmLnc, for identifying lncRNA regulators of immune-related pathways. We comprehensively chart the landscape of lncRNA regulation in the immunome across 33 cancer types and show that cancers with similar tissue origin are likely to share lncRNA immune regulators. Moreover, the immune-related lncRNAs are likely to show expression perturbation in cancer and are significantly correlated with immune cell infiltration. ImmLnc can help prioritize cancer-related lncRNAs and further identify three molecular subtypes (proliferative, intermediate, and immunological) of non-small cell lung cancer. These subtypes are characterized by differences in mutation burden, immune cell infiltration, expression of immunomodulatory genes, response to chemotherapy, and prognosis. In summary, the ImmLnc pipeline and the resulting data serve as a valuable resource for understanding lncRNA function and to advance identification of immunotherapy targets.
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Affiliation(s)
- Yongsheng Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China. .,Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, 571199, China. .,College of Biomedical Information and Engineering, Hainan Medical University, Haikou, Hainan, 570100, China.
| | - Tiantongfei Jiang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Weiwei Zhou
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Junyi Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Xinhui Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Qi Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Xiaoyan Jin
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Jiaqi Yin
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Liuxin Chen
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Yunpeng Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Juan Xu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China. .,Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, 571199, China. .,College of Biomedical Information and Engineering, Hainan Medical University, Haikou, Hainan, 570100, China.
| | - Xia Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China. .,Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, 571199, China. .,College of Biomedical Information and Engineering, Hainan Medical University, Haikou, Hainan, 570100, China.
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Jinesh GG, Brohl AS. The genetic script of metastasis. Biol Rev Camb Philos Soc 2020; 95:244-266. [PMID: 31663259 DOI: 10.1111/brv.12562] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 01/24/2023]
Abstract
Metastasis is a pivotal event that changes the course of cancers from benign and treatable to malignant and difficult to treat, resulting in the demise of patients. Understanding the genetic control of metastasis is thus crucial to develop efficient and sustainable targeted therapies. Here we discuss the alterations in epigenetic mechanisms, transcription, chromosomal instability, chromosome imprinting, non-coding RNAs, coding RNAs, mutant RNAs, enhancers, G-quadruplexes, and copy number variation to dissect the genetic control of metastasis. We conclude that the genetic control of metastasis is predominantly executed through epithelial to mesenchymal transition and evasion of cell death. We discuss how genetic regulatory mechanisms can be harnessed for therapeutic purposes to achieve sustainable control over cancer metastasis.
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Affiliation(s)
- Goodwin G Jinesh
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, U.S.A.,Sarcoma Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, U.S.A
| | - Andrew S Brohl
- Sarcoma Department, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, U.S.A.,Chemical Biology and Molecular Medicine Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, 33612, U.S.A
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Zeng F, Yu N, Han Y, Ainiwaer J. The long non-coding RNA MIAT/miR-139-5p/MMP2 axis regulates cell migration and invasion in non-small-cell lung cancer. J Biosci 2020; 45:51. [PMID: 32345777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Non-small-cell lung cancer (NSCLC) is a complex disease which is influenced by multiple factors. Recent studies demonstrated that long non-coding RNA (lncRNA) MIAT was involved in tumor metastasis. However, the underlying mechanism of MIAT in NSCLC remains largely unknown. In this study, MIAT, miR-139-5p and MMP2 expression were measured by quantitative reverse transcriptase PCR (QRT-PCR) or Western blotting, respectively, and we found the expression of MIAT and MMP2 were elevated, while miR-139-5p was decreased in NSCLC tissues and cell lines. Transwell assay showed MIAT and MMP2 functioned as an oncogene to induce cell migration and invasion in NSCLC, but miR-139-5p served as a tumor suppressor in NSCLC to inhibit cell migration and invasion. Besides that, in vivo experiments also indicated MIAT deletion inhibited tumor growth. The relationship between miR-139-5p and MIAT or MMP2 was then confirmed by Luciferase reporter assay, and the results showed that MIAT directly interacted with miR-139-5p and miR-139- 5p targetedly suppressed MMP2 in NSCLC cells. Furthermore, expression analysis showed that MIAT indirectly regulated MMP2 by sponging miR-139-5p. Finally, rescue assay suggested that miR-139-5p restoration reversed MIAT-overexpression-induced promotion on the migration and invasion of NSCLC cells. In conclusion, our results demonstrated that lncRNA MIAT modulated the migration and invasion of NSCLC by regulating miR-139-5p and MMP2.
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MESH Headings
- Animals
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Cell Line, Tumor
- Cell Movement/genetics
- Cells, Cultured
- Female
- Gene Expression Regulation, Neoplastic
- Gene Knockdown Techniques
- Humans
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Matrix Metalloproteinase 2/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/metabolism
- Neoplasm Invasiveness
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- RNA, Long Noncoding/physiology
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Affiliation(s)
- Fanye Zeng
- Department of Second Oncology, Xinjiang Traditional Chinese Medicine Hospital, Xinjiang, China
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Association of N 6-methyladenine DNA with plaque progression in atherosclerosis via myocardial infarction-associated transcripts. Cell Death Dis 2019; 10:909. [PMID: 31797919 PMCID: PMC6892866 DOI: 10.1038/s41419-019-2152-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/01/2019] [Accepted: 11/05/2019] [Indexed: 01/14/2023]
Abstract
Modification of the novel N6-methyladenine (m6A) DNA implicates this epigenetic mark in human malignant disease, but its role in atherosclerosis (AS) is largely unknown. Here, we found that the leukocyte level of m6A but not 5mC DNA modification was decreased with increasing of carotid plaque size and thickness in 207 AS patients as compared with 142 sex- and age-matched controls. Serum low-density lipoprotein (LDL) and leukocyte m6A levels were associated with the progression of carotid plaque size and thickness. Both LDL level and plaque thickness were also independently and negatively related to m6A level. Reduced m6A level was further confirmed in leukocytes and endothelium in western diet-induced AS mice and in oxidized-LDL (ox-LDL)-treated human endothelium and monocyte cells. Decreased m6A level was closely related to the upregulation of AlkB homolog 1 (ALKBH1), the demethylase of m6A. Silencing of ALKBH1 or hypoxia-inducible factor 1α (HIF1α) could rescue the ox-LDL–increased level of MIAT, a hypoxia-response gene. Mechanically, ox-LDL induced HIF1α for transfer into the nucleus. Nuclear HIF1α bound to the ALKBH1-demethylated MIAT promoter and transcriptionally upregulated its expression. Therefore, elevated ALKBH1 level in endothelium and leukocytes reduced m6A level, which is a novel and sensitive biomarker for AS progression.
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Li C, Pan S, Song Y, Li Y, Qu J. Silence of lncRNA MIAT protects ATDC5 cells against lipopolysaccharides challenge via up-regulating miR-132. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2521-2527. [PMID: 31204523 DOI: 10.1080/21691401.2019.1626410] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The over-expanding role of lncRNA myocardial infarction associated transcript (MIAT) in various human diseases has been recently revealed. This study attempted to see the role of MIAT in a cell model of osteoarthritis (OA). ATDC5 cells were subjected to lipopolysaccharides (LPS) to mimic a cell model of OA. The effects of MIAT on the model were tested by performing CCK-8 assay, flow cytometry, qRT-PCR, western blot and ELISA. The downstream miRNA and signalling pathways were studied by utilizing qRT-PCR and western blot. Transfection of ATDC5 cells with the shRNA specific against MIAT significantly attenuated LPS-evoked apoptosis and cytokines release. At the meantime, the viability loss and the cleavage of caspases were ameliorated as well. MIAT overexpressed lead to the opposite result. Further, miR-132 was found to be negatively regulated by MIAT. The protective effects of MIAT silence were flattened when miR-132 expression was suppressed. Besides that the inhibitory effects of MIAT silence on LPS-evoked NF-κB and JNK activation were eliminated by miR-132 silence. This study illustrated that silence of MIAT protected ATDC5 cells against LPS challenge. The chondroprotective effects of MIAT silence may be via up-regulation of miR-132 and inhibition of NF-κB and JNK pathways.
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Affiliation(s)
- Chen Li
- a Orthopaedic Medical Center, The Second Hospital of Jilin University , Changchun , China
| | - Su Pan
- a Orthopaedic Medical Center, The Second Hospital of Jilin University , Changchun , China
| | - Yan Song
- b Changchun University of Chinese Medicine , Changchun , China
| | - Yinqing Li
- b Changchun University of Chinese Medicine , Changchun , China
| | - Ji Qu
- a Orthopaedic Medical Center, The Second Hospital of Jilin University , Changchun , China
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Zeng J, Tian Q, Zeng Z, Cai J, Ye M, Liu Y, Liu A. Derlin-1 exhibits oncogenic activities and indicates an unfavorable prognosis in breast cancer. Cell Biol Int 2019; 44:593-602. [PMID: 31670413 DOI: 10.1002/cbin.11259] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 10/26/2019] [Indexed: 01/22/2023]
Abstract
Derlin-1 is involved in the elimination of misfolded proteins and has been implicated in the progression of human cancers. However, its prognostic value and biological function in breast cancer remain unknown. Here, we show that Derlin-1 is overexpressed in breast cancer and exhibits oncogenic activities via interaction with UBE2C. Increased expression of Derlin-1 is correlated with lymph node metastasis, advanced clinical stage, and unfavorable overall survival in two cohorts containing over 1,000 patients. Multivariate analyses by the Cox regression model suggest Derlin-1 is an independent factor for poor prognosis. In vitro experiments demonstrate that Derlin-1 expression is transcriptionally upregulated by c-Myc. Ectopic expression of Derlin-1 promotes breast cancer cell proliferation and migration, whereas the knockdown of Derlin-1 results in the opposite phenotypes. Mechanistically, Derlin-1 directly binds to UBE2C to increase the phosphorylation of AKT and ERK. The treatment of UBE2C siRNA markedly attenuates Derlin-1-mediated cell growth and migration. Collectively, our data suggest Derlin-1 is a potential prognostic factor and functions as an oncogene in breast cancer.
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Affiliation(s)
- Jinsheng Zeng
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Jiangxi, 330006, China
| | - Qiuhong Tian
- Department of Oncology, The First Affiliated Hospital of Nanchang University, 330006, Jiangxi, China
| | - Zhimin Zeng
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, 330006, Jiangxi, China
| | - Jing Cai
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, 330006, Jiangxi, China
| | - Meiyu Ye
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Jiangxi, 330006, China
| | - Yaxiong Liu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Jiangxi, 330006, China
| | - Anwen Liu
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, 330006, Jiangxi, China
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Integrative Analysis of ceRNA Network Reveals Functional lncRNAs in Intrahepatic Cholangiocarcinoma. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2601271. [PMID: 31886187 PMCID: PMC6899321 DOI: 10.1155/2019/2601271] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 10/25/2019] [Indexed: 12/21/2022]
Abstract
Intrahepatic cholangiocarcinoma (ICC) is the second most common lethal liver cancer worldwide. Currently, despite the latest developments in genomics and transcriptomics for ICC in recent years, the molecular pathogenesis promoting ICC remains elusive, especially in regulatory mechanisms of long noncoding RNAs (lncRNAs), which acts as competing endogenous RNA (ceRNA). In order to elucidate the molecular mechanism of functional lncRNA, expression profiles of lncRNAs, microRNAs (miRNAs), and messenger RNAs (mRNAs) were obtained from The Cancer Genome Atlas (TCGA) database and an integrative analysis of the ICC-associated ceRNA network was performed. Moreover, gene oncology enrichment analyses for the genes in the ceRNA network were implemented and novel prognostic biomarker lncRNA molecules were identified. In total, 6,738 differentially expressed mRNAs (DEmRNAs), 2,768 lncRNAs (DElncRNAs), and 173 miRNAs (DEmiRNAs) were identified in tumor tissues and adjacent nontumor ICC tissues with the thresholds of adjusted P < 0.01 and |logFC| > 2. An ICC-specific ceRNA network was successfully constructed with 30 miRNAs, 16 lncRNAs, and 80 mRNAs. Gene oncology enrichment analyses revealed that they were associated with the adaptive immune response, T cell selection and positive regulation of GTPase activity categories. Among the ceRNA networks, DElncRNAs ARHGEF26-AS1 and MIAT were found to be hub genes in underexpressed and overexpressed networks, respectively. Notably, univariate Cox regression analysis indicated that DElncRNAs HULC significantly correlated with overall survival (OS) in ICC patients (P value < 0.05), and an additional survival analysis for HULC was reconfirmed in an independent ICC cohort from the Gene Expression Omnibus (GEO) database. These findings contribute to a more comprehensive understanding of the ICC-specific ceRNA network and provide novel strategies for subsequent functional studies of lncRNAs in ICC.
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Wang L, Cho KB, Li Y, Tao G, Xie Z, Guo B. Long Noncoding RNA (lncRNA)-Mediated Competing Endogenous RNA Networks Provide Novel Potential Biomarkers and Therapeutic Targets for Colorectal Cancer. Int J Mol Sci 2019; 20:E5758. [PMID: 31744051 PMCID: PMC6888455 DOI: 10.3390/ijms20225758] [Citation(s) in RCA: 404] [Impact Index Per Article: 80.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer and has a high metastasis and reoccurrence rate. Long noncoding RNAs (lncRNAs) play an important role in CRC growth and metastasis. Recent studies revealed that lncRNAs participate in CRC progression by coordinating with microRNAs (miRNAs) and protein-coding mRNAs. LncRNAs function as competitive endogenous RNAs (ceRNAs) by competitively occupying the shared binding sequences of miRNAs, thus sequestering the miRNAs and changing the expression of their downstream target genes. Such ceRNA networks formed by lncRNA/miRNA/mRNA interactions have been found in a broad spectrum of biological processes in CRC, including liver metastasis, epithelial to mesenchymal transition (EMT), inflammation formation, and chemo-/radioresistance. In this review, we summarize typical paradigms of lncRNA-associated ceRNA networks, which are involved in the underlying molecular mechanisms of CRC initiation and progression. We comprehensively discuss the competitive crosstalk among RNA transcripts and the novel targets for CRC prognosis and therapy.
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Affiliation(s)
- Liye Wang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX,77204, USA; (K.B.C.); (Y.L.); (G.T.); (Z.X.)
| | | | | | | | | | - Bin Guo
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX,77204, USA; (K.B.C.); (Y.L.); (G.T.); (Z.X.)
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Wu L, Liu C, Zhang Z. Knockdown of lncRNA MIAT inhibits proliferation and cisplatin resistance in non-small cell lung cancer cells by increasing miR-184 expression. Oncol Lett 2019; 19:533-541. [PMID: 31897168 DOI: 10.3892/ol.2019.11084] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 08/13/2019] [Indexed: 12/13/2022] Open
Abstract
Accumulating evidence has demonstrated the important role of long non-coding RNA myocardial infarction-associated transcript (MIAT) in tumorigenesis as a potential oncogene. However, the function of MIAT in non-small cell lung cancer (NSCLC) has yet to be completely elucidated. The present study demonstrated that MIAT expression was significantly upregulated in NSCLC tissues, particularly in aggressive cases, and was highly associated with a poor prognosis. In addition, the upregulated expression of MIAT was observed in cisplatin (CDDP)-resistant H1299 cells. Knockdown of MIAT inhibited the proliferation of NSCLC cells and enhanced the sensitivity of NSCLC cells to CDDP in vitro and in vivo. Further functional analysis demonstrated that MIAT partially exerted its oncogenic effect by upregulating the expression of splicing factor 1 (SF1), by serving as a microRNA (miR)-184 sponge. In conclusion, the present study identified that MIAT functions as a competitive endogenous RNA of miR-184to modulate SF1 expression in NSCLC, which provides a novel insight into the potential therapeutic application of MIAT in NSCLC progression.
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Affiliation(s)
- Longqiu Wu
- Department of Cardiothoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Chi Liu
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, P.R. China
| | - Zuxiong Zhang
- Department of Cardiothoracic Surgery, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
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Myocardial infarction associated transcript (MIAT) promotes papillary thyroid cancer progression via sponging miR-212. Biomed Pharmacother 2019; 118:109298. [DOI: 10.1016/j.biopha.2019.109298] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 07/25/2019] [Accepted: 07/31/2019] [Indexed: 12/16/2022] Open
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