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Komitova KS, Dimitrov LD, Stancheva GS, Kyurkchiyan SG, Petkova V, Dimitrov SI, Skelina SP, Kaneva RP, Popov TM. A Critical Review on microRNAs as Prognostic Biomarkers in Laryngeal Carcinoma. Int J Mol Sci 2024; 25:13468. [PMID: 39769234 PMCID: PMC11676902 DOI: 10.3390/ijms252413468] [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: 11/10/2024] [Revised: 12/07/2024] [Accepted: 12/11/2024] [Indexed: 01/03/2025] Open
Abstract
During the past decade, a vast number of studies were dedicated to unravelling the obscurities of non-coding RNAs in all fields of the medical sciences. A great amount of data has been accumulated, and consequently a natural need for organization and classification in all subfields arises. The aim of this review is to summarize all reports on microRNAs that were delineated as prognostic biomarkers in laryngeal carcinoma. Additionally, we attempt to allocate and organize these molecules according to their association with key pathways and oncogenes affected in laryngeal carcinoma. Finally, we critically analyze the common shortcomings and biases of the methodologies in some of the published papers in this area of research. A literature search was performed using the PubMed and MEDLINE databases with the keywords "laryngeal carcinoma" OR "laryngeal cancer" AND "microRNA" OR "miRNA" AND "prognostic marker" OR "prognosis". Only research articles written in English were included, without any specific restrictions on study type. We have found 43 articles that report 39 microRNAs with prognostic value associated with laryngeal carcinoma, and all of them are summarized along with the major characteristics and methodology of the respective studies. A second layer of the review is structural analysis of the outlined microRNAs and their association with oncogenes and pathways connected with the cell cycle (p53, CCND1, CDKN2A/p16, E2F1), RTK/RAS/PI3K cascades (EGFR, PI3K, PTEN), cell differentiation (NOTCH, p63, FAT1), and cell death (FADD, TRAF3). Finally, we critically review common shortcomings in the methodology of the papers and their possible effect on their results.
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Affiliation(s)
| | | | | | | | - Veronika Petkova
- Molecular Medicine Center, Medical University, 1000 Sofia, Bulgaria
| | | | | | - Radka P. Kaneva
- Molecular Medicine Center, Medical University, 1000 Sofia, Bulgaria
| | - Todor M. Popov
- Department of ENT, Medical University, 1000 Sofia, Bulgaria
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Xiao Z, Yang X, Liu Z, Shao Z, Song C, Zhang K, Wang X, Li Z. GASC1 promotes glioma progression by enhancing NOTCH1 signaling. Mol Med Rep 2021; 23:310. [PMID: 33649841 PMCID: PMC7974312 DOI: 10.3892/mmr.2021.11949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 01/21/2021] [Indexed: 12/21/2022] Open
Abstract
Recent studies have reported that gene amplified in squamous cell carcinoma 1 (GASC1) is involved in the progression of several types of cancer. However, whether GASC1 promotes glioma progression remains unknown. Therefore, the present study aimed to investigate the effect of GASC1 exposure on glioma tumorigenesis. The western blot demonstrated that grade III and IV glioma tissues exhibited a higher mRNA and protein expression of GASC1. Moreover, CD133+ U87 or U251 cells from magnetic cell separation exhibited a higher GASC1 expression. Invasion Transwell assay, clonogenic assay and wound healing assay have shown that GASC1 inhibition using a pharmacological inhibitor and specific short hairpin (sh)RNA suppressed the invasive, migratory and tumorsphere forming abilities of primary culture human glioma cells. Furthermore, GASC1‑knockdown decreased notch receptor (Notch) responsive protein hes family bHLH transcription factor 1 (Hes1) signaling. GASC1 inhibition reduced notch receptor 1 (NOTCH1) expression, and a NOTCH1 inhibitor enhanced the effects of GASC1 inhibition on the CD133+ U87 or U251 cell tumorsphere forming ability, while NOTCH1 overexpression abrogated these effects. In addition, the GASC1 inhibitor caffeic acid and/or the NOTCH1 inhibitor DAPT (a γ‑Secretase Inhibitor), efficiently suppressed the human glioma xenograft tumors. Thus, the present results demonstrated the importance of GASC1 in the progression of glioma and identified that GASC1 promotes glioma progression, at least in part, by enhancing NOTCH signaling, suggesting that GASC1/NOTCH1 signaling may be a potential therapeutic target for glioma treatment.
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Affiliation(s)
- Zhengzheng Xiao
- Department of Neurosurgery, Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Xiaoli Yang
- Department of General Practice, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Zebin Liu
- Department of Neurosurgery, Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Zheng Shao
- Department of Neurosurgery, Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Chaojun Song
- Department of Neurosurgery, Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Kun Zhang
- Spine Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, Second Military Medical University, Shanghai 210011, P.R. China
| | - Xiaobin Wang
- Department of Urology, Carson International Cancer Centre, Shenzhen University General Hospital and Shenzhen University Clinical Medical Academy Centre, Shenzhen University, Shenzhen, Guangdong 518000, P.R. China
| | - Zhengwei Li
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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Ghafouri-Fard S, Glassy MC, Abak A, Hussen BM, Niazi V, Taheri M. The interaction between miRNAs/lncRNAs and Notch pathway in human disorders. Biomed Pharmacother 2021; 138:111496. [PMID: 33743335 DOI: 10.1016/j.biopha.2021.111496] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023] Open
Abstract
Notch pathway is a signaling cascade with important impacts on cell proliferation, differentiation, developmental processes and tissue homeostasis. This pathway also regulates stem cell properties, thus being involved in both normal developmental processes and metastatic capacity of cancer cells. Lots of lncRNAs and miRNAs have been recognized that control Notch pathway at some levels or their expression is regulated by this pathway. FOXD2-AS1, MEG3, ANRIL, linc-OIP5, lincRNA-p21, CBR3-AS1, HOTAIR, PVT1 and GAS5 are among lncRNAs that interact with Notch signaling. miR-19, miR-21, miR-33a, miR-8/200, miR-34a, miR-146a, miR-37, miR-100, miR-107 and several other miRNAs have functional interplay with this signaling cascade. In the present review article, we have illuminated the interplay between lncRNAs/miRNAs and Notch pathway in two distinct contexts i.e. cancers and non-neoplastic conditions.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mark C Glassy
- Translational Neuro-Oncology Laboratory, San Diego (UCSD) Moores Cancer Center, University of California, CA, United States
| | - Atefe Abak
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bashdar Mahmud Hussen
- Pharmacognosy Department, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Vahid Niazi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, 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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Ji G, Zhou W, Li X, Du J, Li X, Hao H. Melatonin inhibits proliferation and viability and promotes apoptosis in colorectal cancer cells via upregulation of the microRNA-34a/449a cluster. Mol Med Rep 2021; 23:187. [PMID: 33398374 PMCID: PMC7809902 DOI: 10.3892/mmr.2021.11826] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 10/20/2020] [Indexed: 12/22/2022] Open
Abstract
Colorectal cancer (CRC) has a significant burden on healthcare systems worldwide, and is associated with high morbidity and mortality rates in patients. In 2020, the estimated new cases of colon cancer in the United States are 78,300 in men and 69,650 in women. Thus, developing effective and novel alternative agents and adjuvants with reduced side effects is important to reduce the lethality of the disease and improve the quality of life of patients. Melatonin, a pineal hormone that possesses numerous physiological functions, including anti-inflammatory and antitumor activities, can be found in various tissues, including the gastrointestinal tract. Melatonin exerts anticarcinogenic effects via various mechanisms; however, the identified underlying molecular mechanisms do not explain the full breadth of anti-CRC effects mediated by melatonin. MicroRNAs (miRs) serve critical roles in tumorigenesis, however, whether melatonin can inhibit CRC by regulating miRs is not completely understood. In the present study, the roles and mechanism underlying melatonin in CRC were investigated. The proliferation of human CRC cells was tested by CCK8, EDU and colony formation assay. The apoptosis of cancer cells was detected by flow cytometry and western blotting. A xenograft mouse model was constructed and the proliferation and apoptosis of tumor tissue was detected by Ki-67 and TUNEL staining assay respectively. Reverse transcription-quantitative PCR and western blotting were performed to measure the regulation of miRs on mRNA, and the dual-luciferase report analysis experiment was used to verify the direct target genes of miRs. Compared with the control group, melatonin inhibited viability and proliferation, and induced apoptosis in CRC cells. Additionally, the effect of melatonin in a xenograft mouse model was assessed. Compared with the control group, melatonin significantly enhanced the expression levels of the miR-34a/449a cluster, reduced CRC cell proliferation and viability, and increased CRC cell apoptosis. Finally, the dual-luciferase reporter assay indicated that Bcl-2 and Notch1 were the target mRNAs of the miR-34a/449a cluster. To the best of our knowledge, the present study was the first to suggest that melatonin inhibited proliferation and viability, and promoted apoptosis in CRC cells via upregulating the expression of the miR-34a/449a cluster in vitro and in vivo. Therefore, melatonin may serve as a potential therapeutic for CRC.
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Affiliation(s)
- Guangyu Ji
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Wenjuan Zhou
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xian Li
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Jingyi Du
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xinyue Li
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Mental Disorders, Department of Anatomy and Histoembryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Hongbo Hao
- Department of General Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
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Mishan MA, Khazeei Tabari MA, Zargari M, Bagheri A. MicroRNAs in the anticancer effects of celecoxib: A systematic review. Eur J Pharmacol 2020; 882:173325. [PMID: 32615181 DOI: 10.1016/j.ejphar.2020.173325] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 02/06/2023]
Abstract
Cyclooxygenase-2 (COX-2) is known as an important enzyme in the inflammation process that has tumorigenesis function in various cancers through the induction of epithelial-to-mesenchymal transition (EMT), cell proliferation, migration, and invasion that lead to metastasis. Celecoxib is a nonsteroidal anti-inflammatory drug (NSAID) that can selectively target COX-2, suppress downstream pathways, and finally lead to anticancer potentiality. microRNAs (miRNAs), as a class of small noncoding RNAs, play pivotal roles in cancers through the tumor-suppressive or oncogenic effects, by post-transcriptional regulation of their target genes. In this regard, shreds of evidence have shown that, COX-2 reveals its action through miRNA regulation. So, in this systematic review, we aimed to highlight the tumorigenic role of COX-2 in cancer development and the therapeutic effects of celecoxib, as a selective COX-2 drug, through the regulation of miRNAs.
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Affiliation(s)
- Mohammad Amir Mishan
- Ocular Tissue Engineering Research Center, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Khazeei Tabari
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran; USERN Office, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehryar Zargari
- Department of Clinical Biochemistry and Medical Genetics, Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abouzar Bagheri
- Department of Clinical Biochemistry and Medical Genetics, Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
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LncRNA SNHG7 contributes to tumorigenesis and progression in breast cancer by interacting with miR-34a through EMT initiation and the Notch-1 pathway. Eur J Pharmacol 2019; 856:172407. [DOI: 10.1016/j.ejphar.2019.172407] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/22/2019] [Accepted: 05/22/2019] [Indexed: 01/01/2023]
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Chi D, Zhang W, Jia Y, Cong D, Hu S. Spalt-Like Transcription Factor 1 (SALL1) Gene Expression Inhibits Cell Proliferation and Cell Migration of Human Glioma Cells Through the Wnt/β-Catenin Signaling Pathway. Med Sci Monit Basic Res 2019; 25:128-138. [PMID: 31040265 PMCID: PMC6511114 DOI: 10.12659/msmbr.915067] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background The spalt-like transcription factor 1 (SALL1) gene is a member of the Krüppel-associated box-containing zinc finger proteins (KRAB-ZFPs) and has been shown to modulate the onset and progression of human tumors. This study aimed to investigate the regulatory effects and mechanisms of SALL1 gene expression in human glioblastoma and glioma cells and tissue samples from patients with cerebral glioma. Material/Methods The human glioblastoma cell lines, LN229, U87-MG, U-251, U343, and the Hs683 glioma cell line were studied. The cell counting kit-8 (CCK-8) assay, cell cycle assay, wound-healing assay, transwell assay, Western blot, and quantitative real-time polymerase chain reaction (qRT-PCR) were used to evaluate cell proliferation, cell migration, and the cell cycle and expression of SALL1. Expression of SALL1 mRNA in 120 samples of cerebral glioma and 20 samples of normal brain were studied. Overall survival data from patients with cerebral glioma were analyzed. Results SALL1 expression was down-regulated in human glioblastoma and glioma cells and in cerebral glioma tissues. Down-regulation of SALL1 expression was associated with reduced overall survival. Overexpression of SALL1 was associated with inhibition of cell proliferation associated with cell cycle arrest at the G0/G1 phase. SALL1 inhibited cell migration by preventing epithelial-mesenchymal transition (EMT) and down-regulating the expression of stem cell markers. Reduced levels of β-catenin and downregulation of c-Myc and cyclin D1 and upregulation of p21and p27 expression were associated with SALL1 expression. Conclusions In human glioblastoma cells and cerebral glioma tissues, SALL1 acted as a tumor suppressor gene by inhibiting Wnt/β-catenin signaling.
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Affiliation(s)
- Dapeng Chi
- Department of Neurological Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China (mainland)
| | - Wei Zhang
- Department of Pathology, Shanghai Tenth Peoples' Hospital, Tongji University School of Medicine, Shanghai, China (mainland)
| | - Yulong Jia
- Department of Neurological Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China (mainland)
| | - Damin Cong
- Department of Neurological Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China (mainland)
| | - Shaoshan Hu
- Department of Neurological Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China (mainland)
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Majidinia M, Darband SG, Kaviani M, Nabavi SM, Jahanban-Esfahlan R, Yousefi B. Cross-regulation between Notch signaling pathway and miRNA machinery in cancer. DNA Repair (Amst) 2018; 66-67:30-41. [PMID: 29723707 DOI: 10.1016/j.dnarep.2018.04.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 04/03/2018] [Accepted: 04/17/2018] [Indexed: 12/20/2022]
Abstract
Despite their simple structure, the Notch family of receptors regulates a wide-spectrum of key cellular processes including development, tissue patterning, cell-fate determination, proliferation, differentiation and, cell death. On the other hand, accumulating date pinpointed the role of non-coding microRNAs, namely miRNAs in cancer initiation/progression via regulating the expression of multiple oncogenes and tumor suppressor genes, as such the Notch signaling. It is now documented that these two partners are in one or in the opposite directions and rule together the cancer fate. Here, we review the current knowledge relevant to this tricky interplay between different miRNAs and components of Notch signaling pathway. Further, we discuss the implication of this crosstalk in cancer progression/regression in the context of cancer stem cells, tumor angiogenesis, metastasis and emergence of multi-drug resistance. Understanding the molecular cues and mechanisms that occur at the interface of miRNA and Notch signaling would open new avenues for development of novel and effective strategies for cancer therapy.
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Affiliation(s)
- Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Saber Ghazizadeh Darband
- Danesh Pey Hadi Co., Health Technology Development Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Mojtaba Kaviani
- School of Nutrition and Dietetics, Acadia University, Wolfville, Nova Scotia, Canada
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Rana Jahanban-Esfahlan
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran; Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahman Yousefi
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Wang XP, Zhou J, Han M, Chen CB, Zheng YT, He XS, Yuan XP. MicroRNA-34a regulates liver regeneration and the development of liver cancer in rats by targeting Notch signaling pathway. Oncotarget 2017; 8:13264-13276. [PMID: 28129650 PMCID: PMC5355094 DOI: 10.18632/oncotarget.14807] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/13/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the role of microRNA-34a (miR-34a) in regulating liver regeneration (LR) and the development of liver cancer in rats by targeting Notch signaling pathway. METHODS Thirty male Sprague-Dawley (SD) rats were randomly assigned into partial hepatectomy (PH) group and sham hepatectomy (SH) group. Hematoxylin and eosin (HE) staining was used to observe the histological change in liver tissues. Enzyme-linked immunosorbent assay (ELISA) was used to measure the serum tumor necrosis factor α (TNF-α) and interleukin-6 (IL-6) levels. Dual-luciferase reporter gene assay was performed to examine whether miR-34a targeted Notch1 gene. Human liver cancer Huh7 cells were transfected and divided into blank, negative control (NC), miR-34a mimics and miR-34a inhibitors groups. MTT and flow cytometry were used to detect cell growth, and cell cycle and apoptosis, respectively. Quantitative real-time polymerase chain reaction (qRT-PCR) was applied detect to the expressions of miR-34a and Notch receptor mRNA. Western blotting was performed to detect the protein expressions of Notch receptors, P21, Bax, Bcl-2 and Bcl-xL. Tumor xenograft in nude mice was done to observe tumor formation in different groups. RESULTS Compared to the SH group, miR-34a expression in liver tissues in the PH group decreased first and then increased to the normal level during LR. In early stage of LR, the expressions of Notch receptors and miR-34a were negatively correlated. Compared to the blank and NC groups, the cell growth was inhibited, cell cycle was mainly arrested in the G2/M phase and cell apoptosis rate increased in the miR-34a mimics group. Moreover, the expressions of miR-34a, P21 and Bax were up-regulated, while the expressions of Notch receptors, and Bcl-2 and Bcl-xL were down-regulated in this group. Additionally, the tumor growth in the miR-34a mimics group was reduced. The miR-34a inhibitors group showed contrary tendencies. CONCLUSION Our study demonstrates that miR-34a regulated LR and the development of liver cancer by inhibiting Notch signaling pathway.
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Affiliation(s)
- Xiao-Ping Wang
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Jian Zhou
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Ming Han
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Chuan-Bao Chen
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Yi-Tao Zheng
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Xiao-Shun He
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Xiao-Peng Yuan
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
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Maimaitili A, Shu Z, Cheng X, Kaheerman K, Sikandeer A, Li W. Arctigenin, a natural lignan compound, induces G 0/G 1 cell cycle arrest and apoptosis in human glioma cells. Oncol Lett 2017; 13:1007-1013. [PMID: 28356992 PMCID: PMC5351207 DOI: 10.3892/ol.2016.5474] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 10/19/2016] [Indexed: 01/31/2023] Open
Abstract
The aim of the current study was to investigate the anticancer potential of arctigenin, a natural lignan compound, in malignant gliomas. The U87MG and T98G human glioma cell lines were treated with various concentrations of arctigenin for 48 h and the effects of arctigenin on the aggressive phenotypes of glioma cells were assessed. The results demonstrated that arctigenin dose-dependently inhibited the growth of U87MG and T98G cells, as determined using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and bromodeoxyuridine incorporation assays. Arctigenin exposure also induced a 60-75% reduction in colony formation compared with vehicle-treated control cells. However, arctigenin was not observed to affect the invasiveness of glioma cells. Arctigenin significantly increased the proportion of cells in the G0/G1 phase and reduced the number of cells in the S phase, as compared with the control group (P<0.05). Western blot analysis demonstrated that arctigenin increased the expression levels of p21, retinoblastoma and p53 proteins, and significantly decreased the expression levels of cyclin D1 and cyclin-dependent kinase 4 proteins. Additionally, arctigenin was able to induce apoptosis in glioma cells, coupled with increased expression levels of cleaved caspase-3 and the pro-apoptotic BCL2-associated X protein. Furthermore, arctigenin-induced apoptosis was significantly suppressed by the pretreatment of cells with Z-DEVD-FMK, a caspase-3 inhibitor. In conclusion, the results suggest that arctigenin is able to inhibit cell proliferation and may induce apoptosis and cell cycle arrest at the G0/G1 phase in glioma cells. These results warrant further investigation of the anticancer effects of arctigenin in animal models of gliomas.
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Affiliation(s)
- Aisha Maimaitili
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Zunhua Shu
- Department of Medical Affairs, Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130021, P.R. China
| | - Xiaojiang Cheng
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Kadeer Kaheerman
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Alifu Sikandeer
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
| | - Weimin Li
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang Uyghur Autonomous Region 830054, P.R. China
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Qin CZ, Lv QL, Yang YT, Zhang JM, Zhang XJ, Zhou HH. Downregulation of MicroRNA-320d predicts poor overall survival and promotes the growth and invasive abilities in glioma. Chem Biol Drug Des 2016; 89:806-814. [PMID: 27862991 DOI: 10.1111/cbdd.12906] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 10/20/2016] [Accepted: 10/31/2016] [Indexed: 01/02/2023]
Abstract
Previous studies have demonstrated that miRNAs play an important role in tumor development and progression. The role of miR-320d has been studied in several cancers except for glioma. The aim of the study was to investigate the expression levels, biological function, and mechanism of miR-320d in glioma. The expression levels of miR-320d were detected in glioma tissues and cell lines (U87 and U251) by RT-qPCR. Cell proliferation, colony formation, apoptosis, cell cycle, and transwell assays were performed in glioma cell lines transfected with miR-320d mimics or controls to evaluate the effects of miR-320d in vitro. The expression levels of invasive-related proteins were determined by Western blot analysis. Results showed that the expression of miR-320d was significantly decreased in glioma tissues and cell lines. Overexpression of miR-320d could significantly suppress cell growth, migration and invasion, and induced cell apoptosis as well as cell cycle at G0/G1 arrest in U87 and U251 cell lines. Additionally, expression levels of MMP-2, MMP-9, N-cadherin, and integrin-β1 reduced, while E-cadherin increased in miR-320d mimic group. Overall, this study is the first to demonstrate that miR-320d may serve as an independent prognostic factor, indicating that miR-320d is a biomarker for prognosis and therapy in glioma.
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Affiliation(s)
- Chong-Zhen Qin
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qiao-Li Lv
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
| | - Yan-Tao Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing-Min Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiao-Jian Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
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13
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Wang L, Wu L, Wu J. Downregulation of miR-154 in human glioma and its clinicopathological and prognostic significance. J Int Med Res 2016; 44:994-1001. [PMID: 27417886 PMCID: PMC5536553 DOI: 10.1177/0300060516649487] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective MicroRNA-154 (miR-154) was previously reported to be downregulated in several types of human cancers and may act as a tumour suppressor. This study aimed to measure miR-154 levels and determine its clinical significance in human glioma. Methods This retrospective study analysed fresh human glioma specimens and non-neoplastic brain tissues using real-time quantitative reverse transcription-polymerase chain reaction to determine the relative levels of miR-154. The association between miR-154 levels and various clinicopathological characteristics and survival was analysed. Results A total of 115 patients with gliomas and 115 non-neoplastic brain tissues were examined. MiR-154 levels were significantly downregulated in gliomas compared with non-neoplastic brain tissues. Low levels of miR-154 were associated with high World Health Organization grade, large tumour size (≥ 5 cm), a low Karnofsky performance status score (< 80), and a shorter overall survival. Multivariate analyses using the Cox proportional hazards regression model confirmed that decreased miR-154 level was an independent predictor of a poor prognosis. Conclusions These results suggest that miR-154 downregulation may be involved in glioma formation and progression, and that miR-154 might serve as a potential prognostic biomarker for patients with this disease.
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Affiliation(s)
- Lingling Wang
- 1 Department of Neurology, First Hospital of Jilin University, Changchun, Jilin Province, China.,2 Department of Neurology, Affiliated Hospital of Beihua University, Jilin City, Jilin Province, China
| | - Lei Wu
- 3 Department of Thoracic Surgery, Jilin Central Hospital, Jilin City, Jilin Province, China
| | - Jiang Wu
- 1 Department of Neurology, First Hospital of Jilin University, Changchun, Jilin Province, China
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14
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Gupta S, Ross KE, Tudor CO, Wu CH, Schmidt CJ, Vijay-Shanker K. miRiaD: A Text Mining Tool for Detecting Associations of microRNAs with Diseases. J Biomed Semantics 2016; 7:9. [PMID: 27216254 PMCID: PMC4877743 DOI: 10.1186/s13326-015-0044-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 12/21/2015] [Indexed: 12/31/2022] Open
Abstract
Background MicroRNAs are increasingly being appreciated as critical players in human diseases, and questions concerning the role of microRNAs arise in many areas of biomedical research. There are several manually curated databases of microRNA-disease associations gathered from the biomedical literature; however, it is difficult for curators of these databases to keep up with the explosion of publications in the microRNA-disease field. Moreover, automated literature mining tools that assist manual curation of microRNA-disease associations currently capture only one microRNA property (expression) in the context of one disease (cancer). Thus, there is a clear need to develop more sophisticated automated literature mining tools that capture a variety of microRNA properties and relations in the context of multiple diseases to provide researchers with fast access to the most recent published information and to streamline and accelerate manual curation. Methods We have developed miRiaD (microRNAs in association with Disease), a text-mining tool that automatically extracts associations between microRNAs and diseases from the literature. These associations are often not directly linked, and the intermediate relations are often highly informative for the biomedical researcher. Thus, miRiaD extracts the miR-disease pairs together with an explanation for their association. We also developed a procedure that assigns scores to sentences, marking their informativeness, based on the microRNA-disease relation observed within the sentence. Results miRiaD was applied to the entire Medline corpus, identifying 8301 PMIDs with miR-disease associations. These abstracts and the miR-disease associations are available for browsing at http://biotm.cis.udel.edu/miRiaD. We evaluated the recall and precision of miRiaD with respect to information of high interest to public microRNA-disease database curators (expression and target gene associations), obtaining a recall of 88.46–90.78. When we expanded the evaluation to include sentences with a wide range of microRNA-disease information that may be of interest to biomedical researchers, miRiaD also performed very well with a F-score of 89.4. The informativeness ranking of sentences was evaluated in terms of nDCG (0.977) and correlation metrics (0.678-0.727) when compared to an annotator’s ranked list. Conclusions miRiaD, a high performance system that can capture a wide variety of microRNA-disease related information, extends beyond the scope of existing microRNA-disease resources. It can be incorporated into manual curation pipelines and serve as a resource for biomedical researchers interested in the role of microRNAs in disease. In our ongoing work we are developing an improved miRiaD web interface that will facilitate complex queries about microRNA-disease relationships, such as “In what diseases does microRNA regulation of apoptosis play a role?” or “Is there overlap in the sets of genes targeted by microRNAs in different types of dementia?”.” Electronic supplementary material The online version of this article (doi:10.1186/s13326-015-0044-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Samir Gupta
- Department of Computer and Information Sciences, University of Delaware, Newark, DE, 19711, USA.
| | - Karen E Ross
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, 19711, USA
| | - Catalina O Tudor
- Department of Computer and Information Sciences, University of Delaware, Newark, DE, 19711, USA.,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, 19711, USA
| | - Cathy H Wu
- Department of Computer and Information Sciences, University of Delaware, Newark, DE, 19711, USA.,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, 19711, USA
| | - Carl J Schmidt
- Department of Food and Animal Sciences, University of Delaware, Newark, DE, 19711, USA
| | - K Vijay-Shanker
- Department of Computer and Information Sciences, University of Delaware, Newark, DE, 19711, USA
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15
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Jun GJ, Zhong GG, Ming ZS. miR-218 inhibits the proliferation of glioma U87 cells through the inactivation of the CDK6/cyclin D1/p21 Cip1/Waf1 pathway. Oncol Lett 2015; 9:2743-2749. [PMID: 26137139 DOI: 10.3892/ol.2015.3068] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 03/16/2015] [Indexed: 01/07/2023] Open
Abstract
Malignant gliomas are the most common and deadly primary brain tumors in adults and the high proliferative ability of these cells is one of the most important causes of the poor prognosis of this cancer. Suppressing the proliferation of malignant gliomas cells by altering effector molecules can significantly improve the prognosis of a patient. microRNAs (miRNAs) are small non-coding RNA molecules ∼22 nucleotides in length that are able to function as oncogenes or tumor suppressors in human cancer. In the present study, it was demonstrated that the expression level of miRNA-218 (miR-218) is markedly downregulated in glioma cell lines and human primary glioma tissues. Upregulation of miR-218 in glioma U87 cells dramatically inhibited the proliferation by inducing G1-S checkpoint arrest. Furthermore, it was demonstrated that ectopically expressing miR-218 in glioma U87 cells results in the downregulation of the expression of cyclin dependent kinase (CDK)6 and cyclin D1 and upregulation of the expression of p21Cip1/Waf1. In addition, it was identified that miR-218 inactivated the CDK6/cyclin D1/p21Cip1/Waf1 pathway by downregulating CDK6 expression through the direct targeting of the 3'-untranslated region of CDK6. The present results suggest that miR-218 plays an important role in the prevention of the proliferation of glioma cells, and the present study also revealed a novel mechanism for miRNA-mediated direct suppression of the CDK6/cyclin D1/p21Cip1/Waf1 pathway in glioma cells.
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Affiliation(s)
- Gu Jian Jun
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Gao Guang Zhong
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Zhang Shi Ming
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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16
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Jasinski-Bergner S, Mandelboim O, Seliger B. The role of microRNAs in the control of innate immune response in cancer. J Natl Cancer Inst 2014; 106:dju257. [PMID: 25217579 DOI: 10.1093/jnci/dju257] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Ligands for receptors of natural killer (NK) cells and CD8(+) cytotoxic T lymphocytes (CTL), such as the inhibitory nonclassical HLA-G, the activating stress-induced major histocompatibility complex class I-related antigens MICA and MICB, and/or the UL16-binding proteins (ULBPs), are often aberrantly expressed upon viral infection and neoplastic transformation, thereby preventing virus-infected or malignant-transformed cells from elimination by immune effector cells. Recently, it has been shown that ligands of both NK and CD8(+) T cells are regulated by a number of cellular and/or viral microRNAs (miRs). These miRs are involved in shaping the antiviral and/or antitumoral immune responses as well as neoplastic growth properties. This review summarizes the expression pattern and function of miRs directed against selected NK and T cell receptor ligands, their putative role in shaping immune surveillance and tumorigenicity, and their clinical relevance. In addition, the potential role of RNA-binding proteins in the post-transcriptional gene regulation of these ligands will be discussed.
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Affiliation(s)
- Simon Jasinski-Bergner
- Martin-Luther-University Halle-Wittenberg, Institute of Medical Immunology, Halle (Saale), Germany (SJB, BS); The Hebrew University of Jerusalem, Ein Kerem, The Lautenberg Center for General and Tumor Immunology, IMRIC, Jerusalem, Israel (OM)
| | - Ofer Mandelboim
- Martin-Luther-University Halle-Wittenberg, Institute of Medical Immunology, Halle (Saale), Germany (SJB, BS); The Hebrew University of Jerusalem, Ein Kerem, The Lautenberg Center for General and Tumor Immunology, IMRIC, Jerusalem, Israel (OM)
| | - Barbara Seliger
- Martin-Luther-University Halle-Wittenberg, Institute of Medical Immunology, Halle (Saale), Germany (SJB, BS); The Hebrew University of Jerusalem, Ein Kerem, The Lautenberg Center for General and Tumor Immunology, IMRIC, Jerusalem, Israel (OM).
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17
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Yu Y, Li X, Zhou L, Dou KF, Li XL, Ruan B, Zhang ZC, Dai B, Wang JL, Yang XS, Wang DS. Clinical significance of expression of microRNA-34a and Notch1 in hepatocellular carcinoma. Shijie Huaren Xiaohua Zazhi 2014; 22:1943-1952. [DOI: 10.11569/wcjd.v22.i14.1943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To detect the expressions of microRNA-34a and Notch1 in hepatocellular carcinoma (HCC) and to explore their relationships with HCC occurrence and development and the clinical and pathological features of HCC.
METHODS: Real-time RT-PCR and immunohistochemistry were used to detect the expression of microRNA-34a and Notch1 protein in 132 HCC tissues, matched tumor-adjacent tissues and 49 normal liver tissues, respectively.
RESULTS: The expression of microRNA-34a in HCC tissues were significantly lower than that in tumor-adjacent tissues (P = 0.003) and normal liver tissues (P < 0.001). The expression of microRNA-34a in HCC tissues with metastasis was significantly lower than that in HCC tissues without metastasis (P = 0.014). The expression of Notch1 was significantly higher in HCC tissues than in tumor-adjacent tissues (P = 0.001) and normal liver tissues (P < 0.001). The expression of Notch1 in HCC tissues with metastasis was significantly lower than that in HCC tissues without metastasis (P = 0.008). The expression of microRNA-34a was negatively correlated with that of Notch1 in HCC and tumor-adjacent tissues (r = -0.259, P = 0.003; r = -0.274, P = 0.002). The expression of microRNA-34a and Notch1 in HCC had no correlation with patient age, gender, liver cirrhosis, tumor site, viral hepatitis, or AFP (P > 0.05 for all), but was closely correlated with tumor malignancy, tumor size, lymph node metastasis, tumor number, infiltration depth, and TNM stage (P < 0.05 for all). The 3-year survival rate in the group with low expression of microRNA-34a and high expression of Notch1 (11.3%) was significantly lower than that in the group with high expression of microRNA-34a and low expression of Notch1 (34.7%)(χ2 = 38.163, P = 0.011).
CONCLUSION: The expression of microRNA-34a is significantly down-regulated in HCC tissues, which may reversely regulate its target protein Notch1. Detecting the expression of microRNA-34a and Notch1 in HCC had a potential significance for diagnosis, therapy and prognosis of HCC.
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18
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Yang WB, Li CY. Correlations of MUC15 overexpression with clinicopathological features and prognosis of glioma. ACTA ACUST UNITED AC 2014; 34:254-259. [PMID: 24710941 DOI: 10.1007/s11596-014-1267-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/20/2014] [Indexed: 12/15/2022]
Abstract
The abnormal expression of MUC15, a novel cell membrane-associated mucin, has been reported to predict poor survival in several cancers. The aim of the present study was to examine the expression of MUC15 in glioma and its correlation with clinicopathological features, including the survival of patients with glioma. The mRNA expression level of MUC15 was determined by RT-PCR, quantitative RT-PCR (RT-qPCR) and Western blotting in seven normal brain tissues and seven glioma tissues, respectively. The protein expression level of MUC15 was immunohistochemically detected in paraffin-embedded samples of 317 glioma tissues and 115 noncancerous brain tissues. The association of MUC15 expression levels with the clinicopathologic features and the prognosis was analyzed. The results showed that both mRNA and protein levels of MUC15 were significantly increased in glioma as compared with those in noncancerous brain tissue. Moreover, MUC15 overexpression was positively correlated with the advanced clinical stages of glioam patients (P<0.01). Furthermore, MUC15 expression levels were significantly correlated with the progression of glioma (P<0.001). Survival analysis indicated that glioma patients with higher MUC15 expression had a significantly shorter overall and 5-year survival time than those with low MUC15 expression. Multivariate analysis suggested that MUC15 overexpression was an independent factor for prognosis (hazard risk: 3.216; P=0.009). It was concluded that MUC15 is overexpressed in glioma tissues. Its overexpression correlates with tumor progression and it is a potentially unfavorable prognostic factor for patients with glioma.
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Affiliation(s)
- Wen-Bing Yang
- Department of Radiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Cheng-Yan Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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19
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Palumbo S, Miracco C, Pirtoli L, Comincini S. Emerging roles of microRNA in modulating cell-death processes in malignant glioma. J Cell Physiol 2014; 229:277-86. [PMID: 23929496 DOI: 10.1002/jcp.24446] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 08/01/2013] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are small noncoding RNA molecules that regulate protein expression by cleaving or repressing the translation of target mRNAs. In mammals, their function mainly represses the mRNA transcripts via imperfect complementary sequences in the 3'UTR of target mRNAs. Several miRNAs have been recently reported to be involved in modulation of different genes in tumors, including glioblastoma, the most frequent brain tumor in adults. Despite the improvements in treatments, survival of patients remains poor, and glioblastoma is one of the most lethal form of human cancer. To define novel strategies against this tumor, emerging research investigated miRNAs involvement in glioblastoma. In particular, this review is focused on miRNAs involved on the two principal programmed cell-death, apoptosis and autophagy, recently described from the literature. Moreover, the discovery of miRNAs role in glioma cell-death pathways has also revealed a new category of therapeutic targets, fundamental for this kind of tumor.
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Affiliation(s)
- Silvia Palumbo
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
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20
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Ruiz Esparza-Garrido R, Velázquez-Flores MÁ, Diegopérez-Ramírez J, López-Aguilar E, Siordia-Reyes G, Hernández-Ortiz M, Martínez-Batallar AG, Encarnación-Guevara S, Salamanca-Gómez F, Arenas-Aranda DJ. A proteomic approach of pediatric astrocytomas: MiRNAs and network insight. J Proteomics 2013; 94:162-75. [PMID: 24060999 DOI: 10.1016/j.jprot.2013.09.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 07/23/2013] [Accepted: 09/12/2013] [Indexed: 12/13/2022]
Abstract
UNLABELLED Pediatric astrocytomas, a leading cause of death associated with cancer, are the most common primary central nervous system tumors found in children. Most studies of these tumors focus on adults, not on children. We examined the global protein and microRNA expression pattern by 2D SDS-PAGE, mass spectrometry (MALDI-TOF), and RT(2) miRNA PCR Array System. Proteomic studies revealed 49 proteins with changes on the expression. Interactome showed that vimentin, calreticulin, and 14-3-3 epsilon protein are hub proteins in these neoplasms. MicroRNA analyses demonstrated for the first time novel microRNAs involved in the astrocytoma biology. In conclusion, our results show that novel proteins and microRNAs with expression changes on pediatric astrocytoma could serve as biomarkers of tumor progression. BIOLOGICAL SIGNIFICANCE Astrocytomas are tumors that progress rapidly and that invade surrounding tissues. Although some drugs have been developed to treat these neoplasms, the mortality of patients is still very high. In this study, we describe for the first time, to our knowledge, some proteins and miRNAs associated with the biology of astrocytic tumors that could be postulated as possible diagnostic or prognostic biomarkers. Altogether, our results indicate that large-scale analyses allow making a fairly accurate prediction of different cellular processes altered in astrocytic tumors.
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Affiliation(s)
- Ruth Ruiz Esparza-Garrido
- Unidad de Investigación Médica en Genética Humana, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, 06720 México, D.F., Mexico; Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Av. Universidad 3000, C.P. 04510 Coyoacán, D. F., Mexico
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Besse A, Sana J, Fadrus P, Slaby O. MicroRNAs involved in chemo- and radioresistance of high-grade gliomas. Tumour Biol 2013; 34:1969-78. [PMID: 23568705 DOI: 10.1007/s13277-013-0772-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 03/22/2013] [Indexed: 11/28/2022] Open
Abstract
High-grade gliomas (HGGs) are malignant primary brain tumors of glial cell origin. Despite optimal course of treatment, including maximal surgical resection followed by adjuvant chemo- and/or radiotherapy, the prognosis still remains poor. The main reason is the commonly occurring chemo- and radioresistance of these tumors. In recent years, several signaling pathways, especially PI3K/AKT and ATM/CHK2/p53, have been linked to the resistance of gliomas. Moreover, additional studies have shown that these pathways are significantly regulated by microRNAs (miRNAs), short endogenous RNA molecules that modulate gene expression and control many biological processes including apoptosis, proliferation, cell cycle, invasivity, and angiogenesis. MiRNAs are not only highly deregulated in gliomas, their expression signatures have also been shown to predict prognosis and therapy response. Therefore, they present promising biomarkers and therapeutic targets that might overcome the resistance to treatment and improve prognosis of glioma patients. In this review, we summarize the current knowledge of the functional role of miRNAs in gliomas resistance to chemo- and radiotherapy.
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Affiliation(s)
- Andrej Besse
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic
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22
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Gene expression and epigenetic deregulation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2013; 792:133-50. [PMID: 24014295 DOI: 10.1007/978-1-4614-8051-8_6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The last decade resulted in many scientific discoveries illuminating epigenetic mechanisms of gene regulation and genome organization. DNA methylation emerged as playing a pivotal role in development and cancer. Genome-wide changes in DNA methylation, including hypermethylation of tumor suppressor genes and genome-wide loss of methylation, are two dominant mechanisms that deregulate gene expression and contribute to chromosomal instability. In this chapter we give an overview of how methylation patterns are established during B-cell development and what machinery is necessary to maintain those patterns. We summarize the current state of knowledge of aberrant changes taking place during and contributing to lymphoid transformation in general and to the development of CLL in particular. We discuss key deregulated biomarkers extensively studied using single-gene approaches and give an overview of a wealth of data that became available from genome-wide approaches, focusing on pathways that are critical for lymphomagenesis. We also highlight epigenetic differences between known prognostic groups of CLL.
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