1
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Zhang R, Liu S, Mousavi SM. Cognitive Dysfunction and Exercise: From Epigenetic to Genetic Molecular Mechanisms. Mol Neurobiol 2024; 61:6279-6299. [PMID: 38286967 DOI: 10.1007/s12035-024-03970-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/19/2024] [Indexed: 01/31/2024]
Abstract
Maintaining good health is crucial, and exercise plays a vital role in achieving this goal. It offers a range of positive benefits for cognitive function, regardless of age. However, as our population ages and life expectancy increases, cognitive impairment has become a prevalent issue, often coexisting with age-related neurodegenerative conditions. This can result in devastating consequences such as memory loss, difficulty speaking, and confusion, greatly hindering one's ability to lead an ordinary life. In addition, the decrease in mental capacity has a significant effect on an individual's physical and emotional well-being, greatly reducing their overall level of contentment and causing a significant financial burden for communities. While most current approaches aim to slow the decline of cognition, exercise offers a non-pharmacological, safe, and accessible solution. Its effects on cognition are intricate and involve changes in the brain's neural plasticity, mitochondrial stability, and energy metabolism. Moreover, exercise triggers the release of cytokines, playing a significant role in the body-brain connection and its impact on cognition. Additionally, exercise can influence gene expression through epigenetic mechanisms, leading to lasting improvements in brain function and behavior. Herein, we summarized various genetic and epigenetic mechanisms that can be modulated by exercise in cognitive dysfunction.
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Affiliation(s)
- Runhong Zhang
- Department of Physical Education, Luliang University, Lishi, 033000, Shanxi, China.
| | - Shangwu Liu
- Department of Physical Education, Luliang University, Lishi, 033000, Shanxi, China
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2
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Liu B, Lu T, Wang Y, Zhang G, Fu L, Yu M, Yang K, Cai H. Overexpression of LncRNA SNHG14 as a biomarker of clinicopathological and prognosis value in human cancers: A meta-analysis and bioinformatics analysis. Front Genet 2022; 13:945919. [PMID: 36276965 PMCID: PMC9582150 DOI: 10.3389/fgene.2022.945919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/21/2022] [Indexed: 11/24/2022] Open
Abstract
Background: SNGH14 is a newly discovered long non-coding RNA (lncRNA) highly associated with tumorigenesis. However, whether the level of SNHG14 is related to the prognosis of patients with different cancer types is unclear. Methods: PubMed, Web of Science, Cochrane Library, and Embase were searched to identify eligible studies from inception to November 2021. The odds ratio (OR) and 95% confidence interval (CI) were utilized to analyze dichotomous variables, while the hazard ratio (HR) and 95% CI were used for survival outcomes. We also included trial sequential analysis (TSA) to assess whether the current evidence was sufficiently conclusive. Stata 15.0 and TSA 0.9 software were used for data analyses. Results: A total of 21 studies involving 1,080 patients, mainly from China, were included. Our results revealed that high SNHG14 expression was associated significantly with poor overall survival (OS) [HR = 1.39; 95% CI: (1.06–1.83); p = 0.017]. In addition, elevated SNHG14 expression was related to tumor size (> 3.5 cm) [OR = 1.60; 95% CI: (1.20–2.14); p = 0.001], TNM staging [OR = 0.54; 95% CI: (0.40–0.71); p < 0.001], lymph node metastasis [OR = 1.86; 95% CI: (1.35–2.55); p < 0.001], differentiation grade [OR = 1.95; 95% CI: (1.36–2.80); p < 0.001], and distant metastasis [OR = 2.44; 95% CI: (1.30–4.58); p = 0.005]. However, no significant difference was observed between age [OR = 0.98; 95% CI: (0.72–1.35); p = 0.915] and gender [OR = 0.98; 95% CI: (0.72–1.35); p = 0.915] from the enhanced expression of SNHG14. Conclusion: The current study revealed that overexpression of SNGH14 is associated with low OS rate and clinicopathological characteristics. SNGH14 can be a novel tumor marker that aids in tumor diagnosis, thereby improving patient prognosis.
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Affiliation(s)
- Bin Liu
- The First Clinical Medical School, Lanzhou University, Lanzhou, Gansu, China
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, Gansu Province, China
| | - Tingting Lu
- Institution of Clinical Research and Evidence Based Medicine, Gansu Provincial Hospital, Lanzhou, Gansu Province, China
| | - Yongfeng Wang
- The First Clinical Medical School, Lanzhou University, Lanzhou, Gansu, China
| | - Guangming Zhang
- The First Clinical Medical College of Gansu University of Chinese Medicine, Lanzhou, Gansu Province, China
| | - Liangyin Fu
- The First Clinical Medical College of Gansu University of Chinese Medicine, Lanzhou, Gansu Province, China
| | - Miao Yu
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, Gansu Province, China
| | - Kehu Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu Province, China
| | - Hui Cai
- The First Clinical Medical School, Lanzhou University, Lanzhou, Gansu, China
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, Gansu Province, China
- *Correspondence: Hui Cai,
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3
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The Role of Long Non-Coding RNA CCAT1 and SNHG14 in Activation of Some Protein-Coding Genes Associated with the Development of Ovarian Cancer. Bull Exp Biol Med 2022; 172:760-764. [PMID: 35501644 DOI: 10.1007/s10517-022-05473-8] [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: 10/04/2021] [Indexed: 10/18/2022]
Abstract
Late diagnosis of ovarian cancer is one of the most important problems in its treatment. Long non-coding RNA (lncRNA) are a poorly studied, but promising type of diagnostic biomarkers. We studied the lncRNA interactome to identify biomarkers with potential significance for molecular diagnostics of ovarian cancer. By screening the TCGA database, we identified differentially expressed lncRNA CCAT1 and SNHG14. Based on the indices of complementarity of CCAT1 and SNHG14 to the mRNA sequences, we selected 5 protein-coding genes MAPK1, c-MET, TGFB2, SNAIL1, and WNT4 associated with the epithelial-mesenchymal transition. Real-time PCR on 54 ovarian cancer samples confirmed the high expression levels of CCAT1 and SNHG14 (logFC>1.5, p<0.05). A positive correlation between the expression levels of two lncRNA and mRNA of 5 genes in 6 pairs was established. The activating effect of CCAT1 and SNHG14 on the expression of these genes can be mediated by miR-203 and miR-124.
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Fernandez-Diaz D, Rodriguez-Vidal C, Silva-Rodríguez P, Paniagua L, Blanco-Teijeiro MJ, Pardo M, Piñeiro A, Bande M. Applications of Non-Coding RNAs in Patients With Retinoblastoma. Front Genet 2022; 13:842509. [PMID: 35432447 PMCID: PMC9008704 DOI: 10.3389/fgene.2022.842509] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/07/2022] [Indexed: 12/14/2022] Open
Abstract
Retinoblastoma (RB) is the most common primary intraocular malignancy in childhood. In the carcinogenic process of neoplasms such as RB, the role of non-coding RNAs (ncRNAs) has been widely demonstrated recently. In this review, we aim to provide a clinical overview of the current knowledge regarding ncRNAs in relation to RB. Although ncRNAs are now considered as potential diagnostic biomarkers, prognostic factors, and therapeutic targets, further studies will facilitate enhanced understanding of ncRNAs in RB physiopathology and define the roles ncRNAs can play in clinical practice.
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Affiliation(s)
- Daniel Fernandez-Diaz
- Department of Ophthalmology, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
- Tumores Intraoculares en el Adulto, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
| | | | - Paula Silva-Rodríguez
- Tumores Intraoculares en el Adulto, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
- Fundación Pública Galega de Medicina Xenómica, Clinical University Hospital, Santiago de Compostela, Spain
| | - Laura Paniagua
- Department of Ophthalmology, University Hospital of Coruña, A Coruña, Spain
| | - María José Blanco-Teijeiro
- Department of Ophthalmology, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
- Tumores Intraoculares en el Adulto, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
| | - María Pardo
- Tumores Intraoculares en el Adulto, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
- Grupo Obesidómica, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
| | - Antonio Piñeiro
- Department of Ophthalmology, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
- Tumores Intraoculares en el Adulto, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
| | - Manuel Bande
- Department of Ophthalmology, University Hospital of Santiago de Compostela, Santiago de Compostela, Spain
- Tumores Intraoculares en el Adulto, Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
- *Correspondence: Manuel Bande,
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5
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Ai K, Ni W, Li Z. LncRNA ZFPM2-AS1 boosts retinoblastoma development by targeting miR-3612/NT5E signaling axis. Crit Rev Eukaryot Gene Expr 2022; 32:69-82. [DOI: 10.1615/critreveukaryotgeneexpr.2022042697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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6
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Zheng Y, Zhang Y, Zhang X, Dang Y, Cheng Y, Hua W, Teng M, Wang S, Lu X. Novel lncRNA-miRNA-mRNA Competing Endogenous RNA Triple Networks Associated Programmed Cell Death in Heart Failure. Front Cardiovasc Med 2021; 8:747449. [PMID: 34692796 PMCID: PMC8528160 DOI: 10.3389/fcvm.2021.747449] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 09/09/2021] [Indexed: 01/01/2023] Open
Abstract
Objective: Increasing evidence has uncovered the roles of lncRNA-miRNA-mRNA regulatory networks in cardiovascular diseases. However, the crosstalk between ceRNA networks and development of heart failure (HF) remains unclear. This study was to investigate the role of lncRNA-mediated ceRNA networks in the pathophysiological process of HF and its potential regulatory functions on programmed cell death. Methods: We firstly screened the GSE77399, GSE52601 and GSE57338 datasets in the NCBI GEO database for screening differentially expressed lncRNAs, miRNAs and mRNAs. lncRNA-miRNA-mRNA regulatory networks based on the ceRNA theory were subsequently constructed. GO and KEGG enrichment analysis was conducted to predict potential biological functions of mRNAs in ceRNA networks. Differentially expressed mRNAs were then interacted with programmed cell death related genes. lncRNA-mediated ceRNA regulatory pathways on programmed cell death were validated with qRT-PCR testing. Results: Based on our bioinformatic analysis, two lncRNAs, eight miRNAs and 65 mRNAs were extracted to construct two lncRNAs-mediated ceRNA networks in HF. Biological processes and pathways were enriched in extracellular matrix. Seven lncRNA-mediated ceRNA regulatory pathways on programmed cell death, GAS5/miR-345-5p/ADAMTS4, GAS5/miR-18b-5p/AQP3, GAS5/miR-18b-5p/SHISA3, GAS5/miR-18b-5p/C1orf105, GAS5/miR-18b-5p/PLIN2, GAS5/miR-185-5p/LPCAT3, and GAS5/miR-29b-3p/STAT3, were finally validated. Conclusions: Two novel ceRNA regulatory networks in HF were discovered based on our bioinformatic analysis. Based on the interaction and validation analysis, seven lncRNA GAS5-mediated ceRNA regulatory pathways were hypothesized to impact programmed cell death including seven for apoptosis, three for ferroptosis, and one for pyroptosis. Upon which, we provided novel insights and potential research plots for bridging ceRNA regulatory networks and programmed cell death in HF.
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Affiliation(s)
- Yu Zheng
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yingjie Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiu Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yini Dang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yihui Cheng
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenjie Hua
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Meiling Teng
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shenrui Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiao Lu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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7
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Shen S, Wang Y, Zhang Y, Dong Z, Xing J. Long Non-coding RNA Small Nucleolar RNA Host Gene 14, a Promising Biomarker and Therapeutic Target in Malignancy. Front Cell Dev Biol 2021; 9:746714. [PMID: 34631721 PMCID: PMC8494966 DOI: 10.3389/fcell.2021.746714] [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: 07/24/2021] [Accepted: 08/30/2021] [Indexed: 01/05/2023] Open
Abstract
Small nucleolar RNA host gene 14 (SNHG14) is a long non-coding RNA found to be overexpressed in various types of cancers. Moreover, the expression level of SNHG14 was closely associated with multiple clinicopathological characteristics such as prognosis, tumor differentiation, TNM stage, and lymph node metastasis. Functionally, gain- and loss-of-function of SNHG14 revealed that overexpressed SNHG14 promoted cancer cell viability, invasion, and migration, whereas its down-regulation produced the opposite effect. Mechanistically, regulating its target gene expression by sponging distinct miRNAs might be the major mechanism underlying the oncogenic functions of SNHG14. Thus, SNHG14 might be a promising prognostic biomarker and therapeutic target for cancers. In this review, we discuss the expression profile, biological function, and molecular mechanisms of SNHG14 in cancers to provide a molecular basis for the clinical utility of SNHG14 in the future.
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Affiliation(s)
- Shen Shen
- Precision Medicine Center, Gene Hospital of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanfang Wang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yize Zhang
- Precision Medicine Center, Gene Hospital of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zihui Dong
- Precision Medicine Center, Gene Hospital of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiyuan Xing
- Precision Medicine Center, Gene Hospital of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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8
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Wang X, Yang P, Zhang D, Lu M, Zhang C, Sun Y. LncRNA SNHG14 promotes cell proliferation and invasion in colorectal cancer through modulating miR-519b-3p/DDX5 axis. J Cancer 2021; 12:4958-4970. [PMID: 34234865 PMCID: PMC8247390 DOI: 10.7150/jca.55495] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 05/29/2021] [Indexed: 12/15/2022] Open
Abstract
Numbers of studies suggest that long non-coding RNAs (lncRNAs) exert an important role in cancer progression. It is reported that lncRNA SNHG14 (SNHG14) promotes cell proliferation and invasion in many cancers. However, the underlying molecular mechanism of SNHG14 in colorectal cancer (CRC) remains unclear. In our study, we found that SNHG14 is highly expressed in CRC tissues and cells, especially in SW480 and HT-29 cells. In addition, sh-SNHG14 inhibits cell proliferation, cell migration and invasion, promotes cell apoptosis in CRC cell lines. Furthermore, we found that SNHG14 functions as a sponge for miR-519b-3p, while the DEAD box protein 5 (DDX5) is a downstream target gene of miR-519b-3p, and the functions of miR-519b-3p inhibitors on the CRC progression could be rescued by downregulation of DDX5. Our findings suggest that SNHG14 promotes the CRC progression by miR-519b-3p/DDX5 axis, implying the promising therapeutic target of SNHG4 for CRC patients.
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Affiliation(s)
- Xiaoyuan Wang
- Department of General Surgery, The Second Affiliated Hospital Of Nanjing Medical University, Nanjing, Jiangsu Province, China.,Department of General Surgery, The First Affiliated Hospital Of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Peng Yang
- Department of General Surgery, The First Affiliated Hospital Of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Dongsheng Zhang
- Department of General Surgery, The First Affiliated Hospital Of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Ming Lu
- Department of General Surgery, The Second Affiliated Hospital Of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Chi Zhang
- Department of General Surgery, The Second Affiliated Hospital Of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yueming Sun
- Department of General Surgery, The First Affiliated Hospital Of Nanjing Medical University, Nanjing, Jiangsu Province, China
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9
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Gu X, Xie M, Jia R, Ge S. Publication Trends of Research on Retinoblastoma During 2001-2021: A 20-Year Bibliometric Analysis. Front Med (Lausanne) 2021; 8:675703. [PMID: 34095180 PMCID: PMC8175655 DOI: 10.3389/fmed.2021.675703] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/26/2021] [Indexed: 12/17/2022] Open
Abstract
Background: Retinoblastoma is the most common primary intraocular malignancy of childhood. Despite high survival and eye salvage as the result of various types of therapies, retinoblastoma remains a disease that places a considerable burden on developing countries. Our study attempted to analyse the research trends in retinoblastoma research and compare contributions from different countries, institutions, journals, and authors. Methods: We extracted all publications concerning retinoblastoma from 2001 to 2021 from the Web of Science database. Microsoft Excel and VOSviewer were employed to collect publication data, analyse publication trends, and visualize relevant results. Results: A total of 1,675 publications with 30,148 citations were identified. The United States contributed the most publications (643) and citations (16,931 times) with the highest H-index value (67) as of February 4, 2021. China ranked second in the number of publications (259), while ranking fourth in both citations (2,632 times) and the H-index (26) ranked fourth. The British Journal of Ophthalmology was the most productive journal concerning retinoblastoma, and Abramson DH had published the most papers in the field. Keywords were categorized into three clusters; tumor-related research, clinical research, and management-related research. The keywords “intravitreal,” “intraarterial,” and “intravenous” appeared the most frequently, with the average appearing year being 2018.1, 2017.7, and 2017.1, respectively. Management-related research has been recognized as a heavily researched topic in the field. Conclusion: We conclude that the United States, China, and India made the most exceptional contributions in the field of retinoblastoma research, while China still has a disparity between the quantity and quality of publications. Management-related research, including intravitreal, intraarterial, and intravenous chemotherapy was considered as a potential focus for future research.
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Affiliation(s)
- Xiang Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Minyue Xie
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Renbing Jia
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Shengfang Ge
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai JiaoTong University School of Medicine, Shanghai, China
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Li A, Yang J, Zhang T, Li L, Li M. Long Noncoding RNA TRPM2-AS Promotes the Growth, Migration, and Invasion of Retinoblastoma via miR-497/WEE1 Axis. Front Pharmacol 2021; 12:592822. [PMID: 33986660 PMCID: PMC8112210 DOI: 10.3389/fphar.2021.592822] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 02/10/2021] [Indexed: 01/05/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) exhibit vital roles in many types of cancer, including retinoblastoma (RB), the most common primary intraocular malignancy tumor of infancy. A novel lncRNA TRPM2-AS has been demonstrated to be related to multiple cancers; however, its role in RB remains unclear. Here, we aimed to investigate the function of TRPM2-AS in RB. In this study, TRPM2-AS expression in 35 human RB tissues and RB cell lines was detected by real-time PCR. And, the relationship between its expression and clinicopathological characteristics of RB patients was analyzed. RB cells’ proliferation, migration, invasion, apoptosis, and cell cycle were explored after silencing TRPM2-AS. The mechanism of TRPM2-AS in RB was focused on miR-497/WEE1 axis. Additionally, the role and mechanism of TRPM2-AS were confirmed in a xenograft mouse model. We found TRPM2-AS expression was enhanced in RB tissues and cells. And, higher TRPM2-AS expression was related to advanced clinical stage and optic nerve invasion in patients. Downregulation of TRPM2-AS significantly inhibited proliferation, migration, and invasion, elevated apoptosis, attenuated G2/M phase arrest in RB cells, and suppressed tumor growth in vivo. TRPM2-AS acted as a ceRNA for miR-497 to positively regulate WEE1 expression. miR-497 inhibitor or WEE1 overexpression dramatically reversed the effects of TRPM2-AS downregulating on the malignant phenotypes of RB cells. Therefore, TRPM2-AS is an oncogenic lncRNA in RB, and it functions largely through the miR-497/WEE1 pathway. Despite the limited sample size, this study indicates that TRPM2-AS may be a candidate target in RB therapies.
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Affiliation(s)
- Aipeng Li
- Department of Ophthalmology, The First Hospital of Jilin University, Changchun, China
| | - Jingpu Yang
- Department of Otolaryngology-Head and Neck Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Ting Zhang
- Department of Abdomen Ultrasound, The First Hospital of Jilin University, Changchun, China
| | - Lin Li
- Department of Ophthalmology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Miyang Li
- Department of Clinical Laboratory, China-Japan Union Hospital of Jilin University, Changchun, China
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11
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Yuan X, Sun Z, Cui C. Knockdown of lncRNA HOTTIP Inhibits Retinoblastoma Progression by Modulating the miR-101-3p/STC1 Axis. Technol Cancer Res Treat 2021; 20:1533033821997831. [PMID: 33784880 PMCID: PMC8020084 DOI: 10.1177/1533033821997831] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Objective: Retinoblastoma (RB) is a frequent eye cancer in children. Long non-coding RNA
(LncRNA) HOXA transcript at the distal tip (HOTTIP) is aberrantly expressed
in cancer tissues. This study explores the underlying mechanism of lncRNA
HOTTIP in RB. Methods: HOTTIP expression in normal retinal cells and RB cell lines was detected
using qRT-PCR. The proliferation of RB cells was measured using CCK-8 and
EdU assays, and apoptosis was detected using flow cytometry and Western
blotting after the transfection of si-HOTTIP into Y79 cells and pc-HOTTIP
into HXO-RB-44 cells. The target relationships between HOTTIP and
miR-101-3p, and miR-101-3p and STC1 were predicted by bioinformatics website
and verified using dual-luciferase reporter gene assay. The binding of
HOTTIP and miR-101-3p was verified using RNA pull-down assay. STC1 mRNA and
protein in RB cells were measured using qRT-PCR and Western blotting.
Moreover, si-HOTTIP and in-miR-101-3p/in-NC, and si-HOTTIP and pc-STC1/pcDNA
were co-transfected into Y79 cells respectively to evaluate cell
proliferation and apoptosis. Xenograft study was conducted, and
Ki67-positive expression was detected using immunohistochemical
staining. Results: HOTTIP expression was promoted in RB tissues and cells. Downregulation of
HOTTIP inhibited proliferation and promoted apoptosis of Y79 cells, while
upregulation of HOTTIP promoted proliferation and inhibited apoptosis of
HXO-RB-44 cells. There were target relationships between HOTTIP and
miR-101-3p, and miR-101-3p and STC1. Inhibition of miR-101-3p or
overexpression of STC1 reversed the effect of si-HOTTIP on the proliferation
and apoptosis of RB cells. Xenograft study showed that knockdown of HOTTIP
suppressed the growth of RB in vitro. Conclusion: It could be concluded that HOTTIP sponged miR-101-3p to upregulate STC1
expression, thereby promoting RB cell proliferation and inhibiting
apoptosis.
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Affiliation(s)
- XiangWen Yuan
- Department of Ophthalmology, Jinan People's Hospital, Jinan, Shandong, People's Republic of China
| | - Zhaoyan Sun
- Department of Ophthalmology, Jinan People's Hospital, Jinan, Shandong, People's Republic of China.,Department of Ophthalmology, Tai'an Second Hospital of Traditional Chinese Medicine, Ophthalmology, Tai'an, Shandong, People's Republic of China
| | - Congxian Cui
- The Procurement Office of Logistics Management Department, Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
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12
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Jiang H, Ni J, Zheng Y, Xu Y. Knockdown of lncRNA SNHG14 alleviates LPS-induced inflammation and apoptosis of PC12 cells by regulating miR-181b-5p. Exp Ther Med 2021; 21:497. [PMID: 33791006 PMCID: PMC8005701 DOI: 10.3892/etm.2021.9928] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/08/2020] [Indexed: 12/14/2022] Open
Abstract
Spinal cord injury (SCI) is a traumatic central nervous system disorder that leads to permanent functional loss, and unavailable treatment of this disease results in poor quality of life. However, the specific role of long non-coding RNA small nucleolar RNA host gene 14 (lncRNA SNHG14) in SCI has not been fully studied. The aim of the current study was to investigate the role of SNHG14 and its regulatory mechanism in lipopolysaccharide (LPS)-induced PC-12 cells. LPS was used to stimulate PC-12 cells to simulate inflammatory injury following SCI in vitro. Cell viability and apoptosis were respectively assessed by Cell Counting Kit-8 assay and TUNEL assay. Western blotting was performed to detect the expressions of apoptosis-related proteins. The mRNA levels of SNHG14 and microRNA (miR)-181b-5p were detected by reverse transcription-quantitative PCR. The target of SNGH14 was predicted by bioinformatics analysis and subsequently validated by a luciferase reporter assay. ELISA was then used to detect the levels of inflammatory factors. The results indicated that LPS induced inflammation, decreased cell viability and increased the apoptosis of PC-12 cells. Interference of SNHG14 alleviated this type of injury of PC-12 cells. Bioinformatics prediction and luciferase reporter assay demonstrated that miR-181b-5p could directly bind to SNHG14. Moreover, mechanistic investigations revealed that the miR-181b-5p inhibitor could reverse the inhibitory effects of SNHG14 silencing on cell viability, inflammation and apoptosis of PC-12 cells. To conclude, the present results showed that SNHG14 knockdown alleviated PC-12 cell inflammation and apoptosis induced by LPS via regulating miR-181b-5p, which might provide a novel insight into the treatment of SCI.
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Affiliation(s)
- Hui Jiang
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000, P.R. China
| | - Jie Ni
- Department of Emergency, Affiliated Drum Tower Hospital of Nanjing University, Nanjing, Jiangsu 210000, P.R. China
| | - Yan Zheng
- Department of Neurology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000, P.R. China
| | - Yun Xu
- Department of Neurology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000, P.R. China
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13
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Yuan XW, Yan TQ, Tong H. Effect of miR-515-5p on Proliferation and Drug Sensitivity of Retinoblastoma Cells. Cancer Manag Res 2020; 12:12087-12098. [PMID: 33262657 PMCID: PMC7700094 DOI: 10.2147/cmar.s271165] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/19/2020] [Indexed: 12/11/2022] Open
Abstract
Background Retinoblastoma (RB) is a common malignancy in children eyes. Aberrant microRNA (miR) expression is observed in many cancer cases. miR-515-5p is reported to be concerned with the course of many cancers. This study explores the role of miR-515-5p in proliferation and drug sensitivity of RB cells. Methods Human RB cell lines (WERI-RB1, SO-RB50 and Y79) and human retinal pigment epithelial cell line ARPE-19 were utilized in this study. Drug-resistant cells SO-RB50/VCR and SO-RB50/CBP were constructed for the following experiments. The expressions of miR-515-5p and Notch1 in RB cells were detected. Notch1 was significantly upregulated in RB cells while miR-515-5p was notably downregulated. Then, the binding relationship between miR-515-5p and Notch1 was predicted and verified. Results miR-515-5p negatively regulated Notch1 expression. In vitro and in vivo experiments revealed that overexpressed miR-515-5p inhibited RB cell proliferation and enhanced drug sensitivity. Functional rescue experiment suggested that miR-515-5p regulated RB cell proliferation and drug sensitivity via inhibiting Notch1 expression. Conclusion It could be concluded that overexpressed miR-515-5p suppressed proliferation and drug resistance of RB cells by targeting Notch1 expression, indicating that miR-515-5p might constitute a promising therapy target for RB.
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Affiliation(s)
- Xiang Wen Yuan
- Department of Ophthalmology, Jinan People's Hospital, Jinan City, Shandong Province 271199, People's Republic of China
| | - Ting Qin Yan
- Department of Ophthalmology, Jinan People's Hospital, Jinan City, Shandong Province 271199, People's Republic of China.,Department of Ophthalmology, Tai'an Central Hospital, Tai'an City, Shandong Province 271000, People's Republic of China
| | - Huilin Tong
- Department of Ophthalmology, Laoshan Branch of the Affifiliated Hospital of Qingdao University, Qingdao, Shandong 266100, People's Republic of China
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14
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Zhou S, Zhang D, Guo J, Zhang J, Chen Y. Knockdown of SNHG14 Alleviates MPP +-Induced Injury in the Cell Model of Parkinson's Disease by Targeting the miR-214-3p/KLF4 Axis. Front Neurosci 2020; 14:930. [PMID: 33071725 PMCID: PMC7536369 DOI: 10.3389/fnins.2020.00930] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022] Open
Abstract
Background Parkinson’s disease (PD) is the second most common neurodegenerative disease. Long non-coding RNA (lncRNA) small nucleolar RNA host gene 14 (SNHG14) has been demonstrated as an important regulator in PD pathology. However, the functional mechanisms played by SNHG14 in PD remain largely unclear. Methods We used 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and 1-methyl-4-phenylpyridinium (MPP+) to establish PD mouse and cell models. The levels of SNHG14, miR-214-3p, and Krüppel-like factor 4 (KLF4) were gauged by quantitative real-time polymerase chain reaction (qRT-PCR) or western blot analysis. Cell viability and apoptosis were determined using the Cell Counting-8 Kit (CCK-8) assay and flow cytometry, respectively. The levels of inflammatory cytokines were evaluated by ELISA. The relationships among SNHG14, miR-214-3p, and KLF4 were confirmed by dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. Results Our data indicated that SNHG14 was upregulated and miR-214-3p was downregulated in PD models. SNHG14 knockdown ameliorated MPP+-stimulated damage in SK-N-SH cells, as evidenced by the enhancement in cell viability and the suppression in cell apoptosis and pro-inflammatory cytokine production. Mechanistically, SNHG14 directly targeted miR-214-3p via binding to miR-214-3p, and SNHG14 knockdown protected SK-N-SH cell from MPP+-stimulated cytotoxicity by upregulating miR-214-3p. KLF4 was a direct target of miR-214-3p, and SNHG14 regulated KLF4 expression by acting as a miR-214-3p sponge. Furthermore, miR-214-3p overexpression alleviated MPP+-stimulated damage in SK-N-SH cells by downregulating KLF4. Conclusion Our current study first demonstrated the protective effect of SNHG14 knockdown on MPP+-stimulated cytotoxicity in SK-N-SH cells at least partially by targeting the miR-214-3p/KLF4 axis, illuminating a promising target for PD intervention and treatment.
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Affiliation(s)
- Shufang Zhou
- Department of Neurology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Dan Zhang
- Department of Dentistry, Huaihe Hospital of Henan University, Kaifeng, China
| | - Junnan Guo
- Department of Neurology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Junshi Zhang
- Department of Neurology, Huaihe Hospital of Henan University, Kaifeng, China
| | - Yong Chen
- Department of Neurology, Huaihe Hospital of Henan University, Kaifeng, China
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15
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PD-1/PD-L1 axis regulation in cancer therapy: The role of long non-coding RNAs and microRNAs. Life Sci 2020; 256:117899. [DOI: 10.1016/j.lfs.2020.117899] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/31/2020] [Accepted: 05/31/2020] [Indexed: 02/07/2023]
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