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Vaghf A, Sadegh M, Khansarinejad B, Mondanizadeh M. MicroRNA-124-3p targets Sp1 transcription factor to regulate glioma progression in rats. Gene 2024; 930:148858. [PMID: 39153708 DOI: 10.1016/j.gene.2024.148858] [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: 05/14/2024] [Revised: 07/13/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Gliomas are the most prevalent malignancies of the central nervous system (CNS). Downregulation of microRNA‑124 (miR‑124) has been identified in glioma; however, its biological functions in glioma are not yet fully understood. Specificity protein 1 (SP1) is a type of transcription factor that is involved in cancer progression. In this study, we examined the targeting of Sp1 mRNA by miR-124-3p in a rat glioma model. After confirming and selecting the binding of Sp1 to miR-124 with the help of bioinformatics methods, adult male Wistar rats were used to induce glioma by microinjection of 1 × 106 C6 cells into the striatum area of brain. The rats were divided into 3 groups; intact, sham and glioma groups. The presence of glioma was confirmed 21 days after implantation through histological analysis. The expression levels of miR-124 and SP1 genes in the experimental groups were examined using quantitative real-time polymerase chain reaction (qRT-PCR). Our data showed that the expression of miR-124 was significantly downregulated in glioma group compared to the sham and intact group, while the expression of SP1 was significantly upregulated. We found that the expression levels of miR-124 and Sp1 were decreased and increased in C6 cell line compared to the normal brain tissue cell line, respectively. The results indicated that Sp1 was identified as a direct target of miR‑124 through luciferase reporter assays. In summary, this study demonstrated for the first time that miR-124 expression is downregulated and Sp1 expression is upregulated in an animal model of glioma, which, in turn, may be involved in the development of glioma brain cancer.
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Affiliation(s)
- Atena Vaghf
- Department of Biotechnology and Molecular Medicine, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Mehdi Sadegh
- Departments of Physiology, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | | | - Mahdieh Mondanizadeh
- Department of Biotechnology and Molecular Medicine, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran; Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran.
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2
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Hasani F, Masrour M, Jazi K, Ahmadi P, Hosseini SS, Lu VM, Alborzi A. MicroRNA as a potential diagnostic and prognostic biomarker in brain gliomas: a systematic review and meta-analysis. Front Neurol 2024; 15:1357321. [PMID: 38487328 PMCID: PMC10937740 DOI: 10.3389/fneur.2024.1357321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 02/12/2024] [Indexed: 03/17/2024] Open
Abstract
Introduction Brain neoplasms and central nervous system (CNS) disorders, particularly gliomas, have shown a notable increase in incidence over the last three decades, posing significant diagnostic and therapeutic challenges. MicroRNAs (miRNAs) have emerged as promising biomarkers due to their regulatory role in gene expression, offering potential enhancements in glioma diagnosis and prognosis. Methods This systematic review and meta-analysis, adhering to PRISMA guidelines, included 25 studies for diagnostic accuracy and 99 for prognostic analysis, published until August 27th, 2023. Studies were identified through comprehensive searches of PubMed, Web of Science, and Scopus databases. Inclusion criteria encompassed peer-reviewed original research providing sensitivity, specificity, and area under the curve (AUC) for miRNAs in glioma diagnosis, as well as survival outcomes with hazard ratios (HRs) or mean survival. Results and discussion Meta-analysis demonstrated miRNAs' high diagnostic accuracy, with a pooled sensitivity of 0.821 (95% CI: 0.781-0.855) and specificity of 0.831 (95% CI: 0.792-0.865), yielding an AUC of 0.893. Subgroup analysis by specimen type revealed consistent accuracy across blood, cerebrospinal fluid (CSF), and tissue samples. Our results also showed miRNAs can be potential prognostic biomarkers. miRNAs showed significant associations with overall survival (OS) (pooled HR: 2.0221; 95% CI: 1.8497-2.2105), progression-free survival (PFS) (pooled HR: 2.4248; 95% CI: 1.8888-3.1128), and disease-free survival (DFS) (pooled HR: 1.8973; 95% CI: 1.1637-3.0933) in tissue specimens. These findings underscore miRNAs' potential as valuable biomarkers for improving glioma diagnosis and prognosis, offering insights for enhancing clinical decision-making and patient outcomes.
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Affiliation(s)
- Fatemeh Hasani
- Neuroscience Research Center, Golestan University of Medical Sciences, Gorgan, Iran
- Gastroenterology and Hepatology Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mahdi Masrour
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Kimia Jazi
- Clinical Research and Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran
- Student Research Committee, Faculty of Medicine, Medical University of Qom, Qom, Iran
| | - Payam Ahmadi
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saba sadat Hosseini
- Neuroscience Research Center, Golestan University of Medical Sciences, Gorgan, Iran
- Gastroenterology and Hepatology Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Victor M. Lu
- Department of Neurosurgery, University of Miami, Miami, FL, United States
| | - Amirmohammad Alborzi
- Neuroscience Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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Aroosa M, Malik JA, Ahmed S, Bender O, Ahemad N, Anwar S. The evidence for repurposing anti-epileptic drugs to target cancer. Mol Biol Rep 2023; 50:7667-7680. [PMID: 37418080 PMCID: PMC10460753 DOI: 10.1007/s11033-023-08568-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 05/31/2023] [Indexed: 07/08/2023]
Abstract
Antiepileptic drugs are versatile drugs with the potential to be used in functional drug formulations with drug repurposing approaches. In the present review, we investigated the anticancer properties of antiepileptic drugs and interlinked cancer and epileptic pathways. Our focus was primarily on those drugs that have entered clinical trials with positive results and those that provided good results in preclinical studies. Many contributing factors make cancer therapy fail, like drug resistance, tumor heterogeneity, and cost; exploring all alternatives for efficient treatment is important. It is crucial to find new drug targets to find out new antitumor molecules from the already clinically validated and approved drugs utilizing drug repurposing methods. The advancements in genomics, proteomics, and other computational approaches speed up drug repurposing. This review summarizes the potential of antiepileptic drugs in different cancers and tumor progression in the brain. Valproic acid, oxcarbazepine, lacosamide, lamotrigine, and levetiracetam are the drugs that showed potential beneficial outcomes against different cancers. Antiepileptic drugs might be a good option for adjuvant cancer therapy, but there is a need to investigate further their efficacy in cancer therapy clinical trials.
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Affiliation(s)
- Mir Aroosa
- Department of Pharmacology, Jamia Hamdard, New Delhi, India
| | - Jonaid Ahmad Malik
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
- Department of Biomedical Engineering, Indian Institute of Technology (IIT), Ropar, Ropar, India
| | - Sakeel Ahmed
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, India
| | - Onur Bender
- Biotechnology Institute, Ankara University, Ankara, Turkey
| | - Nafees Ahemad
- School of Pharmacy, Monash University Malaysia, Jalan lagoon selatan, Petaling Jaya, Selangor, DE, Malaysia.
| | - Sirajudheen Anwar
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Hail, Hail, Saudi Arabia.
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4
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Li H, Zheng S, Wan T, Yang X, Ouyang Y, Xia H, Wang X. Circular RNA circ_0000212 accelerates cervical cancer progression by acting as a miR-625-5p sponge to upregulate PTP4A1. Anticancer Drugs 2023; 34:659-668. [PMID: 36729102 DOI: 10.1097/cad.0000000000001435] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Cervical cancer is one of the most common malignant tumors in women. Circular RNA (circRNA) has been shown to play a crucial role in cervical cancer. Here, the aim of this study was to explore the functions and a novel miRNA/mRNA network underlying circ_0000212 in cervical cancer regulation. The expression of circ_000212, miR-625-5p and Protein Tyrosine Phosphatase 4A1 (PTP4A1) mRNA was measured by quantitative real-time PCR (qRT-PCR). 5-ethynyl-2'-deoxyuridine assay was conducted to detect the proliferation of cervical cancer cells. Wound healing and transwell assays were employed to assess cell migration and invasion. The angiogenesis abilities of cervical cancer cells were evaluated by tube formation assay. Flow cytometry was performed for analyzing cell apoptosis. The expression of PTP4A1 protein and apoptosis-relative protein were detected via western blot. The dual-luciferase reporter and RNA immunoprecipitation (RIP) assays were employed to clarify the interaction between circ_0000212 or PTP4A1 and miR-625-5p. The impact of circ_0000212 on cervical cancer growth in vivo was detected by xenograft assay. Circ_0000212 and PTP4A1 were highly expressed and miR-625-5p expression level was decreased in cervical cancer. Circ_0000212 silencing suppressed cervical cancer cell proliferation, migration, invasion and angiogenesis while promoting apoptosis. MiR-625-5p was targeted by circ_0000212, and miR-625-5p inhibition reversed the effects of circ_0000212 knockdown. MiR-625-5p directly targeted PTP4A1, and the inhibitory effect of miR-625-5p on the malignant progression of cervical cancer was reversed after PTP4A1 overexpression. In-vivo assays validated that circ_0000212 promoted cervical cancer tumor growth in vivo . circ_0000212 acted as an oncogene in cervical cancer progression, and knockdown of circ_0000212 repressed cervical cancer development by increasing miR-625-5p and decreasing PTP4A1.
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Affiliation(s)
- Hu Li
- Department of Gynecology, the First Affiliated Hospital of Jinan University
- Department of Gynecology, Panyu Central Hospital
| | - Shaolie Zheng
- Department of Gynecology, the First Affiliated Hospital of Jinan University
| | - Ting Wan
- Department of Gynecology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Xiang Yang
- Department of Gynecology, Panyu Central Hospital
| | - Yuan Ouyang
- Department of Gynecology, Panyu Central Hospital
| | - Hong Xia
- Department of Gynecology, Panyu Central Hospital
| | - Xiaoyu Wang
- Department of Gynecology, the First Affiliated Hospital of Jinan University
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Darvish L, Bahreyni Toossi MT, Azimian H, Shakeri M, Dolat E, Ahmadizad Firouzjaei A, Rezaie S, Amraee A, Aghaee-Bakhtiari SH. The role of microRNA-induced apoptosis in diverse radioresistant cancers. Cell Signal 2023; 104:110580. [PMID: 36581218 DOI: 10.1016/j.cellsig.2022.110580] [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: 09/18/2022] [Revised: 12/07/2022] [Accepted: 12/21/2022] [Indexed: 12/27/2022]
Abstract
Resistance to cancer radiotherapy is one of the biggest concerns for success in treating and preventing recurrent disease. Malignant tumors may develop when they block genetic mutations associated with apoptosis or abnormal expression of apoptosis; Tumor treatment may induce the expression of apoptosis-related genes to promote tumor cell apoptosis. MicroRNAs have been shown to contribute to forecasting prognosis, distinguishing between cancer subtypes, and affecting treatment outcomes in cancer. Constraining these miRNAs may be an attractive treatment strategy to help overcome radiation resistance. The delivery of these future treatments is still challenging due to the excess downstream targets that each miRNA can control. Understanding the role of miRNAs brings us one step closer to attaining patient treatment and improving patient outcomes. This review summarized the current information on the role of microRNA-induced apoptosis in determining the radiosensitivity of various cancers.
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Affiliation(s)
- Leili Darvish
- Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Hosein Azimian
- Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahsa Shakeri
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Dolat
- Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Ahmadizad Firouzjaei
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samaneh Rezaie
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Azadeh Amraee
- Department of Medical Physics, Faculty of Medicine, School of Medicine, Lorestan University of Medical Sciences, khorramabad, Iran
| | - Seyed Hamid Aghaee-Bakhtiari
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Bioinformatics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Sufianov A, Begliarzade S, Ilyasova T, Liang Y, Beylerli O. MicroRNAs as prognostic markers and therapeutic targets in gliomas. Noncoding RNA Res 2022; 7:171-177. [PMID: 35846075 PMCID: PMC9271693 DOI: 10.1016/j.ncrna.2022.07.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/01/2022] [Accepted: 07/01/2022] [Indexed: 01/08/2023] Open
Abstract
Gliomas are invasive brain tumors characterized by high rates of recurrence and mortality. Glioblastoma (GBM), a grade IV brain tumor, is known for its heterogenicity and its resistance to the current treatment regimen. MicroRNA (miRNAs) are small non-coding sequences of RNA that regulate and influence the expression of multiple genes. The detection of certain types of micro-RNA in tissues and blood serum can be used for diagnosis and prognosis, including the response of a particular patient to therapy. The purpose of this review is to analyze studies and experimental results concerning changes in microRNA expression profiles characteristic of gliomas. Furthermore, miRNAs also contribute to autophagy at multiple stages. In this review, we summarize the functions of miRNAs in GBM pathways linked to dysregulation of cell cycle control, apoptosis and resistance to treatment, and the possible use of miRNAs in clinical settings as treatment and prediction biomarkers.
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Affiliation(s)
- Albert Sufianov
- Federal Center of Neurosurgery, Tyumen, Russia.,Department of Neurosurgery, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.,Educational and Scientific Institute of Neurosurgery, Рeoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Sema Begliarzade
- Republican Clinical Perinatal Center, Ufa, Republic of Bashkortostan, 450106, Russia
| | - Tatiana Ilyasova
- Department of Internal Diseases, Bashkir State Medical University, Ufa, Republic of Bashkortostan, 450008, Russia
| | - Yanchao Liang
- Department of Neurosurgery, the First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.,Institute of Brain Science, Harbin Medical University, Harbin, 150001, China
| | - Ozal Beylerli
- Educational and Scientific Institute of Neurosurgery, Рeoples' Friendship University of Russia (RUDN University), Moscow, Russia
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7
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Yildiz CB, Zimmer-Bensch G. Role of DNMTs in the Brain. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1389:363-394. [DOI: 10.1007/978-3-031-11454-0_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Circ_CLIP2 promotes glioma progression through targeting the miR-195-5p/HMGB3 axis. J Neurooncol 2021; 154:131-144. [PMID: 34357490 DOI: 10.1007/s11060-021-03814-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/23/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Circular RNA (circRNA) has been demonstrated to play key roles in regulating glioma progression. Understanding the regulatory mechanism of circRNA in glioma is vital to reveal the pathogenesis of glioma and develop novel therapeutic strategies. Therefore, our study focuses on the role and underlying mechanism of Circ_CLIP2 in glioma. METHODS The expression of Circ_CLIP2, miR-195-5p and HMGB3 in glioma cells and tissues were analyzed using qRT-PCR. Cell proliferation was determined with colony formation and MTT assays. Cell cycle and apoptosis were examined by flow cytometry. Western blot was conducted for analyzing HMGB3, PCNA, Bax, Bcl-2, cleaved-caspase 3, Wnt-1 and β-catenin. Dual-luciferase reporter assay was measured to investigate the interaction among Circ_CLIP2, miR-195-5p and HMGB3. RESULTS The expression of Circ_CLIP2 and HMGB3 were increased while miR-195-5p was down-regulated in glioma cells and patients. Silencing of Circ_CLIP2 inhibited cell proliferation, enhanced cell apoptosis and inhibited the Wnt/β-catenin signaling pathway. Circ_CLIP2 suppressed miR-195-5p expression by directly sponging miR-195-5p. MiR-195-5p inhibited HMGB3 expression via directly targeting HMGB3. Knockdown of miR-195-5p facilitated cell proliferation, inhibited cell apoptosis and activated Wnt/β-catenin signaling, which were reversed by silencing of HMGB3. CONCLUSION Knockdown of Circ_CLIP2 suppresses glioma progression by targeting miR-195-5p/HMGB3 thus inhibiting Wnt/β-catenin signaling. This study may provide potential therapeutic targets against glioma.
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Unique Interplay Between Molecular miR-181b/d Biomarkers and Health Related Quality of Life Score in the Predictive Glioma Models. Int J Mol Sci 2020; 21:ijms21207450. [PMID: 33050332 PMCID: PMC7589546 DOI: 10.3390/ijms21207450] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/30/2020] [Accepted: 10/07/2020] [Indexed: 11/18/2022] Open
Abstract
In the last decade, an increasing amount of research has been conducted analyzing microRNA expression changes in glioma tissue and its expressed exosomes, but there is still sparse information on microRNAs or other biomarkers and their association with patients’ functional/psychological outcomes. In this study, we performed a combinational analysis measuring miR-181b and miR-181d expression levels by quantitative polymerase chain reaction (qPCR), evaluating isocitrate dehydrogenase 1 (IDH1) single nucleotide polymorphism (SNP), and O-6-methylguanine methyltransferase (MGMT) promoter methylation status in 92 post-surgical glioma samples and 64 serum exosomes, including patients’ quality of life evaluation applying European Organization for Research and Treatment of Cancer (EORTC) questionnaire for cancer patients (QLQ-30), EORTC the Brain Cancer-Specific Quality of Life Questionnaire (QLQ-BN20), and the Karnofsky performance status (KPS). The tumoral expression of miR-181b was lower in grade III and glioblastoma, compared to grade II glioma patients (p < 0.05). Additionally, for the first time, we demonstrated the association between miR-181 expression levels and patients’ quality of life. A positive correlation was observed between tumoral miR-181d levels and glioma patients’ functional parameters (p < 0.05), whereas increased exosomal miR-181b levels indicated a worse functional outcome (p < 0.05). Moreover, elevated miR-181b exosomal expression can indicate a significantly shorter post-surgical survival time for glioblastoma multiforme (GBM) patients. In addition, both tumoral and exosomal miR-181 expression levels were related to patients’ functioning and tumor-related symptoms. Our study adds to previous findings by demonstrating the unique interplay between molecular miR-181b/d biomarkers and health related quality of life (HRQOL) score as both variables remained significant in the predictive glioma models.
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Chen W, Hong L, Hou C, Wang Y, Wang F, Zhang J. MicroRNA-585 inhibits human glioma cell proliferation by directly targeting MDM2. Cancer Cell Int 2020; 20:469. [PMID: 33005102 PMCID: PMC7523344 DOI: 10.1186/s12935-020-01528-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 09/01/2020] [Indexed: 02/07/2023] Open
Abstract
Background MicroRNAs (miRNAs) are important regulators for cancer cell proliferation. miR-585 has been shown to inhibit the proliferation of several types of cancer, however, little is known about its role in human glioma cells. Methods miR-585 levels in human glioma clinical samples and cell lines were examined by quantitative real-time PCR (qRT-PCR) analysis. Cell proliferation was measured by Cell Counting Kit-8 (CCK-8) and EdU incorporation assays in vitro. For in vivo investigations, U251 cells were intracranially inoculated in BALB/c nude mice and xenografted tumors were visualized by magnetic resonance imaging (MRI). Results miR-585 expression is downregulated in human glioma tissues and cell lines compared with non-cancerous counterparts. Additionally, miR-585 overexpression inhibits and its knockdown promotes human glioma cell proliferation in vitro. Moreover, miR-585 overexpression also inhibits the growth of glioma xenografts in vivo, suggesting that miR-585 may act as a tumor suppressor to inhibit the proliferation of human glioma. Furthermore, miR-585 directly targets and decreases the expression of oncoprotein murine double minute 2 (MDM2). More importantly, the restoration of MDM2 via enforced overexpression markedly rescues miR-585 inhibitory effect on human glioma cell proliferation, thus demonstrating that targeting MDM2 is a critical mechanism by which miR-585 inhibits human glioma cell proliferation. Conclusions Our study unveils the anti-proliferative role of miR-585 in human glioma cells, and also implicates its potential application in clinical therapy.
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Affiliation(s)
- Wangsheng Chen
- Department of Radiology, Hainan General Hospital/Hainan Hospital of Hainan Medical University, Haikou, 570311 China
| | - Lan Hong
- Department of Gynecology, Hainan General Hospital/Hainan Hospital of Hainan Medical University, Haikou, 570311 China
| | - Changlong Hou
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, No 150, JiMo Road, Pudong New Area, Shanghai, 200120 China
| | - Yibin Wang
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, No 150, JiMo Road, Pudong New Area, Shanghai, 200120 China
| | - Fei Wang
- Department of Radiology, Hainan General Hospital/Hainan Hospital of Hainan Medical University, Haikou, 570311 China
| | - Jianhua Zhang
- Department of Radiology, Shanghai East Hospital, Tongji University School of Medicine, No 150, JiMo Road, Pudong New Area, Shanghai, 200120 China
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Zhang C, Zhang X, Wang J, Di F, Xue Y, Lin X, Zhang Y, Zhang H, Zhang Z, Gu Y. Lnc00462717 regulates the permeability of the blood-brain tumor barrier through interaction with PTBP1 to inhibit the miR-186-5p/Occludin signaling pathway. FASEB J 2020; 34:9941-9958. [PMID: 32623796 DOI: 10.1096/fj.202000045r] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 04/22/2020] [Accepted: 04/30/2020] [Indexed: 01/17/2023]
Abstract
Blood-brain tumor barrier (BTB) severely restricts the efficient delivery of chemotherapeutic drugs into brain tumor tissue, which is a critical obstacle for glioma treatment. Recently, long noncoding RNAs (lncRNAs) have shown as regulation factors of numerous biological processes. In this study, we identified that Lnc00462717 was upregulated in glioma endothelial cells (GECs), and that knockdown of Lnc00462717 significantly increased the BTB permeability. Both bioinformatics and RNA immunoprecipitation (RIP) results revealed that Lnc00462717 interacts with polypyrimidine tract binding protein (PTBP1). Moreover, overexpression of PTBP1 significantly reversed the increase in BTB permeability caused by siLnc00462717. Furthermore, the binding sites between miR-186 and PTBP1 as well as between miR-186 and 3'UTR of Occludin mRNA were confirmed by RIP and luciferase assays, respectively. And the interaction of Lnc00462717 and PTBP1 significantly facilitated the binding of PTBP1 to 3'UTR of Occludin mRNA and then blocked the miR-186-5p-induced downregulation of Occludin. In addition, we identified that knockdown of Lnc00462717 or overexpression of miR-186-5p increased the accumulation of doxorubicin (Dox) in brain glioma via the ultrafast liquid chromatography-mass spectrometry system (UFLC-MS/MS system) and decreased the intracranial glioma volume in BALB/c nude mice. Taken together, these results show a novel molecular pathway in BTB that may provide a potential innovative strategy for glioma therapy.
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Affiliation(s)
- Cai Zhang
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, P.R. China
| | - Xiaoyi Zhang
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, P.R. China
| | - Jiahong Wang
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, P.R. China
| | - Fan Di
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, P.R. China
| | - Yixue Xue
- Department of Neurobiology, College Basic of Medicine, China Medical University, Shenyang, P.R. China
| | - Xiangdan Lin
- Graduate School of Jinzhou Medical University, Jinzhou, P.R. China
| | - Ying Zhang
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, P.R. China
| | - Hong Zhang
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, P.R. China
| | - Zhou Zhang
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, P.R. China
| | - Yanting Gu
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang, P.R. China
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Oto J, Plana E, Solmoirago MJ, Fernández-Pardo Á, Hervás D, Cana F, España F, Artoni A, Bucciarelli P, Carrabba G, Navarro S, Merati G, Medina P. microRNAs and Markers of Neutrophil Activation as Predictors of Early Incidental Post-Surgical Pulmonary Embolism in Patients with Intracranial Tumors. Cancers (Basel) 2020; 12:cancers12061536. [PMID: 32545233 PMCID: PMC7353032 DOI: 10.3390/cancers12061536] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 02/06/2023] Open
Abstract
Venous thromboembolism (VTE) is a common complication of cancer that severely increases morbidity and mortality. Patients with intracranial tumors are more likely to develop VTE than patients with cancers at other sites. Conversely, limited tools exist to identify patients with high thrombotic risk. Upon activation, neutrophils release their content through different mechanisms triggering thrombosis. We explored the ability of microRNAs (miRNAs) and plasma markers of neutrophil activation measured before surgery to predict the risk of early post-surgical pulmonary embolism (PE) in glioma and meningioma patients. We recruited and prospectively followed 50 patients with glioma and 50 with meningioma, 34% of whom in each group developed an early objectively-diagnosed post-surgical PE. We measured miRNA expression and neutrophil markers (cell-free DNA, nucleosomes, calprotectin and myeloperoxidase) before surgery. In glioma patients, we adjusted and validated a predictive model for post-surgical PE with 6 miRNAs: miR-363-3p, miR-93-3p, miR-22-5p, miR-451a, miR-222-3p and miR-140-3p (AUC = 0.78; 95% Confidence Interval (CI) [0.63, 0.94]) and another with cfDNA and myeloperoxidase as predictors (AUC = 0.71; 95% CI [0.52, 0.90]). Furthermore, we combined both types of markers and obtained a model with myeloperoxidase and miR-140-3p as predictors (AUC = 0.79; 95% CI [0.64, 0.94]). In meningioma patients we fitted and validated a predictive model with 6 miRNAs: miR-29a-3p, miR-660-5p, miR-331-3p, miR-126-5p, miR-23a-3p and miR-23b-3p (AUC = 0.69; 95% CI [0.52, 0.87]). All our models outperformed the Khorana score. This is the first study that analyzes the capability of plasma miRNAs and neutrophil activation markers to predict early post-surgical PE in glioma and meningioma patients. The estimation of the thrombotic risk before surgery may promote a tailored thromboprophylaxis in a selected group of high-risk patients, in order to minimize the incidence of PE and avoid bleedings.
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Affiliation(s)
- Julia Oto
- Haemostasis, Thrombosis, Atherosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (J.O.); (E.P.); (M.J.S.); (Á.F.-P.); (F.C.); (F.E.); (S.N.)
| | - Emma Plana
- Haemostasis, Thrombosis, Atherosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (J.O.); (E.P.); (M.J.S.); (Á.F.-P.); (F.C.); (F.E.); (S.N.)
- Angiology and Vascular Surgery Service, La Fe University and Polytechnic Hospital, 46026 Valencia, Spain
| | - María José Solmoirago
- Haemostasis, Thrombosis, Atherosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (J.O.); (E.P.); (M.J.S.); (Á.F.-P.); (F.C.); (F.E.); (S.N.)
| | - Álvaro Fernández-Pardo
- Haemostasis, Thrombosis, Atherosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (J.O.); (E.P.); (M.J.S.); (Á.F.-P.); (F.C.); (F.E.); (S.N.)
| | - David Hervás
- Data Science, Biostatistics and Bioinformatics Unit, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain;
| | - Fernando Cana
- Haemostasis, Thrombosis, Atherosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (J.O.); (E.P.); (M.J.S.); (Á.F.-P.); (F.C.); (F.E.); (S.N.)
| | - Francisco España
- Haemostasis, Thrombosis, Atherosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (J.O.); (E.P.); (M.J.S.); (Á.F.-P.); (F.C.); (F.E.); (S.N.)
| | - Andrea Artoni
- A. Bianchi Bonomi Hemophilia and Thrombosis Centre, Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (A.A.); (P.B.); (G.M.)
| | - Paolo Bucciarelli
- A. Bianchi Bonomi Hemophilia and Thrombosis Centre, Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (A.A.); (P.B.); (G.M.)
| | - Giorgio Carrabba
- Neurosurgery Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy;
| | - Silvia Navarro
- Haemostasis, Thrombosis, Atherosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (J.O.); (E.P.); (M.J.S.); (Á.F.-P.); (F.C.); (F.E.); (S.N.)
| | - Giuliana Merati
- A. Bianchi Bonomi Hemophilia and Thrombosis Centre, Fondazione IRCCS Ca’Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (A.A.); (P.B.); (G.M.)
| | - Pilar Medina
- Haemostasis, Thrombosis, Atherosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (J.O.); (E.P.); (M.J.S.); (Á.F.-P.); (F.C.); (F.E.); (S.N.)
- Correspondence:
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Alamdari-Palangi V, Karami Z, Karami H, Baazm M. MiRNA-7 Replacement Effect on Proliferation and Tarceva-Sensitivity in U373-MG Cell Line. Asian Pac J Cancer Prev 2020; 21:1747-1753. [PMID: 32592373 PMCID: PMC7568905 DOI: 10.31557/apjcp.2020.21.6.1747] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Deregulation of the EGFR signaling pathway activity has been shown to can be effective in resistance to EGFR-TKIs, such as Tarceva (erlotinib), in glioblastoma cells. In addition, reports have shown that the reduction of miRNA-7 expression levels is associated with an increase in the expression of EGFR. Here, we evaluated the effect of miRNA-7 on EGFR expression and sensitivity of the U373-MG glioblastoma to erlotinib. METHODS The effect of miRNA-7 on EGFR expression was examined using RT-qPCR and western blotting. Trypan blue and MTT assays were performed to explore the effect of treatments on cell growth and survival, respectively. The combination index analysis was used to evaluate the interaction between drugs. Apoptosis was measured by ELISA cell death assay. RESULTS We showed that miRNA-7 markedly inhibited the expression of EGFR and decreased the growth of glioblastoma cells, relative to blank control and negative control miRNA (p < 0.05). Introduction of miRNA-7 synergistically increased the sensitivity of the U373-MG cells to erlotinib. Results of apoptosis assay demonstrated that miRNA-7 can trigger apoptosis and enhance the erlotinib-mediated apoptosis. CONCLUSIONS Our results show that miRNA-7 plays a critical role in the growth, survival and sensitivity of the U373-MG cells to erlotinib by targeting EGFR. Thus, miRNA-7 replacement therapy can become an effective therapeutic procedure in glioblastoma.
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Affiliation(s)
- Vahab Alamdari-Palangi
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran.,Department of Molecular Medicine and Biotechnology, Arak University of Medical Sciences, Arak, Iran
| | - Zahra Karami
- Department of Oral Medicine, Dental Research Center, Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Hadi Karami
- Department of Molecular Medicine and Biotechnology, Arak University of Medical Sciences, Arak, Iran.,Traditional and Complementary Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Maryam Baazm
- Department of Anatomy, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
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Alamdari-Palangi V, Amini R, Karami H. MiRNA-7 enhances erlotinib sensitivity of glioblastoma cells by blocking the IRS-1 and IRS-2 expression. J Pharm Pharmacol 2020; 72:531-538. [DOI: 10.1111/jphp.13226] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 12/06/2019] [Indexed: 11/27/2022]
Abstract
Abstract
Objectives
Down-regulation of miRNA-7 is correlated with over-expression of IRS-1 and IRS-2 proteins, the upstream regulators of IGF-1R/Akt pathway, in glioblastoma cells. In this study, the effect of miRNA-7 on expression of IRS-1 and IRS-2 and sensitivity of the U373-MG glioblastoma cells to erlotinib was explored.
Methods
After miRNA-7 transfection, the expression of IRS-1 and IRS-2 mRNAs was measured by RT-qPCR. Trypan blue assay was used to assess the effect of miRNA-7 on cell proliferation. The effects of miRNA-7 and erlotinib, alone and in combination, on cell survival and apoptosis were measured using MTT assay and ELISA cell death assay, respectively.
Key findings
Our data showed that miRNA-7 markedly inhibited the expression of IRS-1 and IRS-2 in a time-dependent manner, inhibited the proliferation of glioblastoma cells and enhanced apoptosis (P < 0.05, relative to control). Pretreatment with miRNA-7 synergistically inhibited the cell survival rate and decreased the IC50 of erlotinib. Furthermore, miRNA-7 significantly augmented the apoptotic effect of erlotinib.
Conclusions
Our data propose that inhibition of IRS-1 and IRS-2 by miRNA-7 can effectively induce apoptosis and sensitize glioblastoma cell to EGFR-TKIs. Therefore, miRNA-7 may be a potential therapeutic target in patients with glioblastoma.
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Affiliation(s)
- Vahab Alamdari-Palangi
- Department of Molecular Medicine and Biotechnology, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Razieh Amini
- Department of Molecular Medicine and Biotechnology, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Hadi Karami
- Department of Molecular Medicine and Biotechnology, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
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Wang C, Huang S, Rao S, Hu J, Zhang Y, Luo J, Wang H. Decreased expression of miR-410-3p correlates with poor prognosis and tumorigenesis in human glioma. Cancer Manag Res 2019; 11:10581-10592. [PMID: 31908530 PMCID: PMC6927686 DOI: 10.2147/cmar.s202247] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 04/30/2019] [Indexed: 11/23/2022] Open
Abstract
Background Gliomas are the most common type of primary tumors in the central nervous system. This study aimed to investigate the biological role of miR-410-3p in glioma and elucidate the potential molecular mechanisms involved. Methods The expression levels of miR-410-3p in clinical tissue samples and glioma cell lines were determined using qRT-PCR analysis. The clinical significance of miR-410-3p in glioma was evaluated using Kaplan-Meier survival analysis and Fisher’s exact test. The effects of miR-410-3p on glioma cell proliferation, apoptosis, migration and invasion were investigated using MTT assays, flow cytometry, transwell migration and invasion assays. Besides, corresponding mechanistic studies were carried out. Results miR-410-3p was significantly down-regulated in glioma tissues. Besides, Kaplan-Meier analysis demonstrated that patients with low miR-410-3p expression had a shorter overall survival. Decreased miR-410-3p expression was associated with larger tumor size, lower Karnofsky performance score (KPS), and higher World Health Organization (WHO) grade. Over-expression of miR-410-3p suppressed cell proliferation, migration, and invasion, and accelerated apoptosis; whereas depletion of miR-410-3p facilitated cell proliferation, migration, and invasion, and inhibited apoptosis. Mechanistic investigations demonstrated that Ras-related protein 1A (RAP1A) was a direct target of miR-410-3p, and that rescue of RAP1A expression reversed miR-410-3p over-expression-induced inhibitory effects on cell proliferation, migration, and invasion. Notably, miR-410-3p over-expression repressed tumor growth in mouse xenograft models. Conclusion Our findings indicate that miR-410-3p functions as a tumor suppressor in glioma by directly targeting RAP1A. Thus, this study may provide some new insights into gliomagenesis and progression.
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Affiliation(s)
- Chaojia Wang
- Department of Neurology, Taihe Affiliated Hospital, Hubei University of Medicine, Shiyan 442000, People's Republic of China
| | - Shulan Huang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, People's Republic of China
| | - Shanshan Rao
- Department of Neurology, Taihe Affiliated Hospital, Hubei University of Medicine, Shiyan 442000, People's Republic of China
| | - Juntao Hu
- Department of Neurology, Taihe Affiliated Hospital, Hubei University of Medicine, Shiyan 442000, People's Republic of China
| | - Yuqiang Zhang
- Department of Neurology, Taihe Affiliated Hospital, Hubei University of Medicine, Shiyan 442000, People's Republic of China
| | - Jie Luo
- Department of Neurology, Taihe Affiliated Hospital, Hubei University of Medicine, Shiyan 442000, People's Republic of China
| | - Hui Wang
- Department of Neurology, Taihe Affiliated Hospital, Hubei University of Medicine, Shiyan 442000, People's Republic of China
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Basu B, Ghosh MK. Extracellular Vesicles in Glioma: From Diagnosis to Therapy. Bioessays 2019; 41:e1800245. [PMID: 31188499 DOI: 10.1002/bies.201800245] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 04/11/2019] [Indexed: 01/08/2023]
Abstract
Increasing evidence indicates that extracellular vesicles (EVs) secreted from tumor cells play a key role in the overall progression of the disease state. EVs such as exosomes are secreted by a wide variety of cells and transport a varied population of proteins, lipids, DNA, and RNA species within the body. Gliomas constitute a significant proportion of all primary brain tumors and majority of brain malignancies. Glioblastoma multiforme (GBM) represents grade IV glioma and is associated with very poor prognosis despite the cumulative advances in diagnostic procedures and treatment strategies. Here, the authors describe the progress in understanding the role of EVs, especially exosomes, in overall glioma progression, and how new research is unraveling the utilities of exosomes in glioma diagnostics and development of next-generation therapeutic systems. Finally, based on an understanding of the latest scientific literature, a model for the possible working of therapeutic exosomes in glioma treatment is proposed.
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Affiliation(s)
- Bhaskar Basu
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector-V, Salt Lake, Kolkata, 700091, & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Mrinal K Ghosh
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology (CSIR-IICB), TRUE Campus, CN-6, Sector-V, Salt Lake, Kolkata, 700091, & 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, India
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Witusik-Perkowska M, Zakrzewska M, Jaskolski DJ, Liberski PP, Szemraj J. Artificial microenvironment of in vitro glioblastoma cell cultures changes profile of miRNAs related to tumor drug resistance. Onco Targets Ther 2019; 12:3905-3918. [PMID: 31190889 PMCID: PMC6535444 DOI: 10.2147/ott.s190601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 02/09/2019] [Indexed: 12/26/2022] Open
Abstract
Purpose: The in vitro environment can influence not only the molecular background of glioblastoma drug-resistance and treatment efficiency, but also the mechanisms and pathways of cell death. Both crucial molecular pathways and the deregulation of miRNAs are thought to participate in tumor therapy-resistance. The aim of our study is to examine the potential influence of ex vivo conditions on the expression of miRNAs engaged in the machinery of tumor-drug resistance, since in vitro models are commonly used for testing new therapeutics. Methods: Glioblastoma-derived cells, cultured under three different sets of conditions, were used as experimental models in vitro. The expression of 84 miRNAs relevant to brain tumorigenesis was evaluated by multi-miRNA profiling for initial tumors and their corresponding cultures. Finally, the expression of selected miRNAs related to temozolomide-resistance (miR-125b, miR-130a, miR-21, miR-221, miR-222, miR-31, miR-149, miR-210, miR-181a) was assessed by real-time PCR for each tumor and neoplastic cells in cultures. Results: Our results demonstrate significant discrepancies in the expression of several miRNAs between tumor cells in vivo and in vitro, with miR-130a, miR-221, miR-31, miR-21, miR-222, miR-210 being the most marked. Also differences were observed between particular models in vitro. The results of computational analysis revealed the interplay between examined miRNAs and their targets involved in processes of glioblastoma chemosensitivity, including the genes relevant to temozolomide response (MGMT, PTEN, MDM2, TP53, BBC3A). Conclusion: The artificial environment may influence the selective proliferation of cell populations carrying specific patterns of miRNAs and/or the phenotype of neoplastic cells (eg differentiation) by the action of molecular events including miRNAs. These phenomena may influence the tumor-responsiveness to particular drugs, disturbing the evaluation of their efficacy in vitro, with unpredictable results caused by the interdependency of molecular pathways.
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Affiliation(s)
| | - Magdalena Zakrzewska
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Lodz, Poland
| | - Dariusz J Jaskolski
- Department of Neurosurgery and Neurooncology, Medical University of Lodz, Barlicki University Hospital, Lodz, Poland
| | - Pawel P Liberski
- Department of Molecular Pathology and Neuropathology, Medical University of Lodz, Lodz, Poland
| | - Janusz Szemraj
- Department of Medical Biochemistry, Medical University of Lodz, Lodz, Poland
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Liu C, Fu H, Liu X, Lei Q, Zhang Y, She X, Liu Q, Liu Q, Sun Y, Li G, Wu M. LINC00470 Coordinates the Epigenetic Regulation of ELFN2 to Distract GBM Cell Autophagy. Mol Ther 2018; 26:2267-2281. [PMID: 30037656 PMCID: PMC6127511 DOI: 10.1016/j.ymthe.2018.06.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 06/14/2018] [Accepted: 06/20/2018] [Indexed: 12/31/2022] Open
Abstract
The epigenetics and genomics of glioblastoma (GBM) are complicated. Previous reports indicate that ELFN2 is widely distributed in the cerebral cortex neurons, striatum, and hippocampus cone and in granular cells. However, the function and mechanism of ELFN2, particularly in GBM, have rarely been explored. In this study, we identified ELFN2 as a new hypomethylation gene that acts as an oncogene in GBM. ELFN2 promoted cell autophagy by interacting with AurkA and eIF2α and inhibiting the activation of AurkA. We also demonstrated that aberrantly high ELFN2 expression is obtained due to hypomethylation of its promoter and abnormal miR-101 and LINC00470 expression in GBM. LINC00470 not only enhanced the expression of ELFN2 through adsorption of miR-101 but also affected the methylation level of ELFN2 by decreasing H3K27me3 occupancy. In addition, LINC00470 played a dominant role in the regulation of GBM cell autophagy, even though it upregulated ELFN2 expression. The results indicate that the combination of LINC00470 and ELFN2 has important significance for evaluating the prognosis of astrocytoma patients.
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Affiliation(s)
- Changhong Liu
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Haijuan Fu
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Xiaoping Liu
- Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Qianqian Lei
- Department of Pathology, Zhengzhou University People's Hospital & Henan Provincial People's Hospital, Zhengzhou 450000, Henan, China
| | - Yan Zhang
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Xiaoling She
- Second Xiangya Hospital, Central South University, Changsha 410013, Hunan, China
| | - Qiang Liu
- Third Xiangya Hospital, Central South University, Changsha 410013, Hunan, China
| | - Qing Liu
- Xiangya Hospital, Central South University, Changsha 410013, Hunan, China
| | - Yingnan Sun
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China
| | - Guiyuan Li
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China
| | - Minghua Wu
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha 410078, Hunan, China; Key Laboratory of Carcinogenesis, Ministry of Health, Changsha 410078, Hunan, China.
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Sun S, Wang X, Xu X, Di H, Du J, Xu B, Wang Q, Wang J. MiR-433-3p suppresses cell growth and enhances chemosensitivity by targeting CREB in human glioma. Oncotarget 2018; 8:5057-5068. [PMID: 27926502 PMCID: PMC5354892 DOI: 10.18632/oncotarget.13789] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/22/2016] [Indexed: 02/06/2023] Open
Abstract
Previous studies reported that miR-433 exerts function widely in human tumorigenesis and development. Here, we further investigate the potential role of miR-433 in glioma. Quantitative real-time PCR demonstrated that miR-433-3p and miR-433-5p were low expressed in glioma tissues and cell lines. Functional studies suggested that the overexpression of miR-433-3p suppressed proliferation, induced apoptosis and inhibited invasion and migration of human glioma cells. But the growth and metastasis of glioma cells were not significantly influenced by overexpression of miR-433-5p. In a xenograft model, we also showed that miR-433-3p had an inhibitory effect on the growth of glioma. Bioinformatics coupled with luciferase and western blot assays revealed that CREB is a direct target of miR-433-3p, and the overexpression of CREB can rescue the phenotype changes induced by miR-433-3p overexpression. Besides, miR-433-3p could increase chemosensitivity of glioma to temozolomide by targeting CREB in vitro and in vivo. Taken together, these results suggest that miR-433-3p may function as a potential marker in diagnostic and therapeutic target for glioma.
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Affiliation(s)
- Shupeng Sun
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Xiuyu Wang
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.,The Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Xinnv Xu
- Key Laboratory for Critical Care Medicine of the Ministry of Health, Tianjin First Center Hospital, Tianjin 300192, China
| | - Hui Di
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - Jixiang Du
- The Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Bin Xu
- The Graduate School, Tianjin Medical University, Tianjin 300070, China
| | - Qiong Wang
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Jinhuan Wang
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
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Yang L, Ma Y, Xin Y, Han R, Li R, Hao X. Role of the microRNA 181 family in glioma development. Mol Med Rep 2017; 17:322-329. [PMID: 29115595 DOI: 10.3892/mmr.2017.7895] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 11/18/2016] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs) are small, noncoding regulatory RNAs that regulate protein expression by reducing mRNA stability and/or translation, via base pairing with full or partial sequence‑complementary target mRNAs. Recent evidence indicates that miRNAs have roles as tumor suppressors and oncogenes. The members of the miRNA181 (miR181) family have been reported to be downregulated in early stage human glioma, and to be involved in glioma development. The current study demonstrated that all subtypes of the miRNA 181 family were downregulated at stages of human glioma, including miR181a1, a2, b1, b2, c and d. In the present study, the family members were detected by reverse transcription-quantitative polymerase chain reaction in glioma tissues of different stages. miR181c declined the most in the samples from patients with World Health Organization (WHO) grade I glioma. As glioma development progressed from grade I to IV, the expression of miRN181 family members continued to decline, with miR181b1 exhibiting the fastest decline rate. Furthermore, a lentivirus was used to overexpress miR181c in primary glioma cells; the result indicated that miR181c overexpression was able to significantly inhibit glioma cell proliferation. Thus, miR181 may be a useful biomarker for human glioma at early stages. Detection of the level of miR181 family members may be a potential method for glioma diagnosis, determining the tumor WHO grade and guiding clinical treatment.
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Affiliation(s)
- Liu Yang
- Clinical Laboratory Medicine Center of PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yueyun Ma
- Clinical Laboratory Medicine Center of PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yijuan Xin
- Clinical Laboratory Medicine Center of PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Ruobin Han
- Clinical Laboratory Medicine Center of PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Rui Li
- Clinical Laboratory Medicine Center of PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xiaoke Hao
- Clinical Laboratory Medicine Center of PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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Wang X, Sun S, Tong X, Ma Q, Di H, Fu T, Sun Z, Cai Y, Fan W, Wu Q, Li Y, Wang Q, Wang J. MiRNA-154-5p inhibits cell proliferation and metastasis by targeting PIWIL1 in glioblastoma. Brain Res 2017; 1676:69-76. [PMID: 28842123 DOI: 10.1016/j.brainres.2017.08.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 07/25/2017] [Accepted: 08/11/2017] [Indexed: 11/19/2022]
Abstract
MicroRNAs (miRNAs) play a critical role in glioblastoma initiation and progression. PIWIL1, a human homolog of the PIWI family, has a critical effect on glioblastoma progression. In present study, we found that the expression of miR-154-5p was significantly lower in glioblastoma. Our results suggested that the overexpression of miR-154-5p suppressed proliferation and metastasis, induced apoptosis, whereas inhibiting the expression of miR-154-5p significantly promoted proliferation and metastasis of glioblastoma. We further proved that miR-154-5p directly integrated with the 3'-UTR of PIWIL1 and reintroduction of PIWIL1 can rescue the phenotype changes induced by miR-154-5p. Taken together, our study reveals that miR-154-5p can counteract the malignant phenotypes of glioblastoma by targeting PIWIL1, which might be beneficial to reveal new therapeutic targets for glioblastoma.
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Affiliation(s)
- Xiuyu Wang
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China; The Graduate School, Tianjin Medical University, Tianjin 300070, China.
| | - Shupeng Sun
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
| | - Xiaoguang Tong
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
| | - Quanfeng Ma
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China; The Graduate School, Tianjin Medical University, Tianjin 300070, China.
| | - Hui Di
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China; Department of Neurosurgery, Affiliated Hospital of Hebei University, Baoding 071000, China.
| | - Tao Fu
- The Graduate School, Tianjin Medical University, Tianjin 300070, China.
| | - Zhen Sun
- The Graduate School, Tianjin Medical University, Tianjin 300070, China.
| | - Ying Cai
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
| | - Weijia Fan
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
| | - Qiaoli Wu
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
| | - Yidi Li
- Department of laboratory, Tianjin Medical University, Tianjin 300070, China.
| | - Qiong Wang
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
| | - Jinhuan Wang
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
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Zhang Y, Wu Z, Li L, Xie M. miR-30a inhibits glioma progression and stem cell‑like properties by repression of Wnt5a. Oncol Rep 2017. [PMID: 28627699 DOI: 10.3892/or.2017.5728] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
miR-30a has been found to be dysregulated in diverse cancers and involved in the regulation of tumor progression. However, there is scarce research on the role of miR-30a in glioma. In the present study, we assessed the expression level of miR-30a in glioma tissues and cell lines. The microRNA microarray analysis revealed low expression of miR-30a in glioma tissues and cells vs. the control. Furthermore, we found that stable miR-30a inhibited cell proliferation, G1 phase arrest and stem cell-like formation in glioma. Moreover, to investigate the molecular mechanism of miR-30a on glioma cell phenotypes, we identified Wnt5a as a new direct target gene for miR-30a by bioinformatic assay, luciferase assay and western blot analysis. Further functional studies suggested that miR-30a suppressed metastasis, sphere formation and glioma growth by targeting Wnt5a signal pathway. Collectively, our findings suggested for the first time that miR-30a may function as a tumor suppressor in glioma by targeting Wnt5a.
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Affiliation(s)
- Yonghong Zhang
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Zhi Wu
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Lichao Li
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Min Xie
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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23
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Huang Q, Zhang XW, Ma YS, Lu GX, Xie RT, Yang HQ, Lv ZW, Zhong XM, Liu T, Huang SX, Fu D, Xie C. Up-regulated microRNA-299 corrected with poor prognosis of glioblastoma multiforme patients by targeting ELL2. Jpn J Clin Oncol 2017; 47:590-596. [DOI: 10.1093/jjco/hyw188] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 05/12/2017] [Indexed: 02/02/2023] Open
Affiliation(s)
- Qian Huang
- Department of Burn and Plastic Surgery, People's Hospital of New District Longhua Shenzhen, Shenzhen
| | - Xin-Wen Zhang
- Department of Neurosurgery Surgery, Tongde Hospital of Zhejian Province, Hangzhou
| | - Yu-Shui Ma
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai
| | - Gai-Xia Lu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai
| | - Ru-Ting Xie
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai
| | - Hui-Qiong Yang
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai
| | - Zhong-Wei Lv
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai
| | - Xiao-Ming Zhong
- Department of Radiology, Jiangxi Provincial Tumor Hospital, Nanchang
- Department of Radiology, Ganzhou City People's Hospital, Ganzhou
| | - Tao Liu
- Department of Neurology, People's Hospital of Hainan Province, Haikou
| | - Shi-Xiong Huang
- Department of Neurology, People's Hospital of Hainan Province, Haikou
| | - Da Fu
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chun Xie
- Department of Burn and Plastic Surgery, People's Hospital of New District Longhua Shenzhen, Shenzhen
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24
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Hassan A, Mosley J, Singh S, Zinn PO. A Comprehensive Review of Genomics and Noncoding RNA in Gliomas. Top Magn Reson Imaging 2017; 26:3-14. [PMID: 28079712 DOI: 10.1097/rmr.0000000000000111] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Glioblastoma (GBM) is the most malignant primary adult brain tumor. In spite of our greater understanding of the biology of GBMs, clinical outcome of GBM patients remains poor, as their median survival with best available treatment is 12 to 18 months. Recent efforts of The Cancer Genome Atlas (TCGA) have subgrouped patients into 4 molecular/transcriptional subgroups: proneural, neural, classical, and mesenchymal. Continuing efforts are underway to provide a comprehensive map of the heterogeneous makeup of GBM to include noncoding transcripts, genetic mutations, and their associations to clinical outcome. In this review, we introduce key molecular events (genetic and epigenetic) that have been deemed most relevant as per studies such as TCGA, with a specific focus on noncoding RNAs such as microRNAs (miRNA) and long noncoding RNAs (lncRNA). One of our main objectives is to illustrate how miRNAs and lncRNAs play a pivotal role in brain tumor biology to define tumor heterogeneity at molecular and cellular levels. Ultimately, we elaborate how radiogenomics-based predictive models can describe miRNA/lncRNA-driven networks to better define heterogeneity of GBM with clinical relevance.
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Affiliation(s)
- Ahmed Hassan
- *Department of Diagnostic Radiology †Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center ‡Department of Neurosurgery, Baylor College of Medicine, Houston, TX
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25
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Kit O, Vodolazhsky D, Rostorguev E, Porksheyan D, Panina S. The role of micro-RNA in the regulation of signal pathways in gliomas. ACTA ACUST UNITED AC 2017; 63:481-498. [DOI: 10.18097/pbmc20176306481] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Gliomas are invasive brain tumors with high rates of recurrence and mortality. Glioblastoma multiforme (GBM) is the most deadly form of glioma with nearly 100% rate of recurrence and unfavorable prognosis in patients. Micro-RNAs (miR) are the class of wide-spread short non-coding RNAs that inhibit translation via binding to the mRNA of target genes. The aim of the present review is to analyze recent studies and experimental results concerning aberrant expression profiles of miR, which target components of the signaling pathways Hedgehog, Notch, Wnt, EGFR, TGFb, HIF1a in glioma/glioblastoma. Particularly, the interactions of miR with targets of 2-hydroxyglutarate (the product of mutant isocytrate dehydrogenase, R132H IDH1, which is specific for the glioma pathogenesis) have been considered in the present review. Detecting specific miRNAs in tissue and serum may serve as a diagnostic and prognostic tool for glioma, as well as for predicting treatment response of an individual patient, and potentially serving as a mechanism for creating personalized treatment strategies
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Affiliation(s)
- O.I. Kit
- Rostov Research Institute of Oncology, Rostov-on-Don, Russia
| | | | - E.E. Rostorguev
- Rostov Research Institute of Oncology, Rostov-on-Don, Russia
| | - D.H. Porksheyan
- Rostov Research Institute of Oncology, Rostov-on-Don, Russia
| | - S.B. Panina
- Rostov Research Institute of Oncology, Rostov-on-Don, Russia
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26
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Effect of rs11614913 Polymorphism on Mature miR196a2 Expression and its Target Gene HOXC8 Expression in Human Glioma. J Mol Neurosci 2016; 61:144-151. [PMID: 27796868 DOI: 10.1007/s12031-016-0855-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 10/21/2016] [Indexed: 12/27/2022]
Abstract
miRNA polymorphisms are recently identified as a risk factor for various cancers, and it is associated with change in the expression of target genes in vitro. rs11614913 polymorphism in miR196a2 was associated with risk of glioma in Chinese population. In this study, we have evaluated the role of rs11614913 polymorphism and glioma risk in Indian population in 180 cases and controls. Seventy-two glioma tissue-blood pairs were also assessed for mutation in this SNP. Further, the effect of this polymorphism on mature miR196a2 expression and HOXC8 gene expression was analysed in 33 glioma tissue samples with different genotypes. Allelic discrimination assay was performed for genotyping and quantitative real time PCR for the expression of miR196a2 and HOXC8 gene. We could not find any association between rs11614913 polymorphism and glioma risk in Indian population. The rs11614913 genotyping of glioma tissue and blood pair revealed presence of mutations showing changes from C to T allele in majority of samples. The expression of the mature miR196a2 was significantly high in glioma samples, but there was no difference in expression with genotype. HOXC8 gene expression was not significantly different in glioma tissue when compared to non-glioma and interestingly there was a significant difference in expression with different genotypes, especially TT genotype was showing over expression when compared to other genotypes. Our study suggests that the rs11614913 polymorphism does not affect the mature miRNA expression, but shows its effect through target gene HOXC8 expression in glioma.
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27
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Duan J, Zhou K, Tang X, Duan J, Zhao L. MicroRNA-34a inhibits cell proliferation and induces cell apoptosis of glioma cells via targeting of Bcl-2. Mol Med Rep 2016; 14:432-8. [PMID: 27176117 DOI: 10.3892/mmr.2016.5255] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 03/30/2016] [Indexed: 11/05/2022] Open
Abstract
Glioblastoma is a highly malignant brain tumor, characterized by the poor prognosis and high recurrence rates. Despite therapeutic strategies including surgery, radiotherapy and chemotherapy, the median survival of patients is only 14.6 months. MicroRNAs (miRNAs) have been considered as a novel type of gene regulator. Previous studies have demonstrated that the expression of miRNA‑34a (miR‑34a) is significantly associated with the grade and prognosis of glioma. However, the exact function of miR‑34a on glioma progression and underlying mechanisms remain to be elucidated. The present study investigated the function of miR‑34a in U87 human glioma cells by exogenously transfecting cells with an miR‑34a mimic. Overexpression of miR‑34a inhibited proliferation, and induced apoptosis of U87 cells. The current study also demonstrated that B‑cell lymphoma 2 (Bcl‑2) was the target gene of miR‑34a, as demonstrated by luciferase assays. Furthermore, restoring the expression of Bcl‑2 was indicated to partially block the miR‑34a‑induced apoptosis. Thus, data from the present study identified miR‑34a as a tumor suppressor in glioma by, at least partially, targeting Bcl‑2. This may provide future novel diagnostic and therapeutic strategies for human glioma.
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Affiliation(s)
- Junwei Duan
- Department of Neurosurgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Kejun Zhou
- Department of Pediatric Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Xiaoping Tang
- Department of Neurosurgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Jie Duan
- Department of Neurosurgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Long Zhao
- Department of Neurosurgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
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28
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Yan S, Han X, Xue H, Zhang P, Guo X, Li T, Guo X, Yuan G, Deng L, Li G. Let-7f Inhibits Glioma Cell Proliferation, Migration, and Invasion by Targeting Periostin. J Cell Biochem 2016; 116:1680-92. [PMID: 25735962 DOI: 10.1002/jcb.25128] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 02/06/2015] [Indexed: 12/16/2022]
Abstract
Glioma is one of the most aggressive and malignant tumor types. Despite advances in surgery, imaging, chemotherapy, and radiation, glioma patient prognosis remains poor. Glioma pathogenesis is an urgent problem that must be solved. MicroRNAs (miRNAs) are endogenous small non-coding RNAs that are key post-transcriptional regulators of gene expression. miRNA deregulation commonly occurs in human tumorigenesis. In the present study, the expression levels of Let-7f were down-regulated in both glioma tissues and glioma cells. The enhanced expression of Let-7f suppressed glioma cells proliferation, migration, and invasion via direct targeting perisotin oncogenic activity. Experiments with periostin siRNA or over-expression further suggest that Let-7f may serve as tumor suppressors through perisotin signal. These findings provide insights regarding the role and mechanism of Let-7f in regulating biological behavior of glioma cells via the Let-7f/periostin axis, and Let-7f may serve as a potential therapeutic target in glioma.
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Affiliation(s)
- Shaofeng Yan
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
| | - Xiao Han
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
| | - Hao Xue
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
| | - Ping Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
| | - Xing Guo
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
| | - Tong Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
| | - Xiaofan Guo
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
| | - Guang Yuan
- Department of Neurosurgery, Zibo Zhong Xin Hospital, Zibo, Shandong Province, P.R., China
| | - Lin Deng
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, P.R., China
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29
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Sharma V, Purkait S, Takkar S, Malgulwar PB, Kumar A, Pathak P, Suri V, Sharma MC, Suri A, Kale SS, Kulshreshtha R, Sarkar C. Analysis of EZH2: micro-RNA network in low and high grade astrocytic tumors. Brain Tumor Pathol 2016; 33:117-28. [PMID: 26746204 DOI: 10.1007/s10014-015-0245-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 12/10/2015] [Indexed: 12/25/2022]
Abstract
Enhancer of Zeste homologue2 (EZH2) is an epigenetic regulator that functions as oncogene in astrocytic tumors, however, EZH2 regulation remains little studied. In this study, we measured EZH2 levels in low (Gr-II,DA) and high grade (Gr-IV,GBM) astrocytic tumors and found significant increased EZH2 transcript level with grade(median DA-8.5, GBM-28.9).However, a different trend was reflected in protein levels, with GBMs showing high EZH2 LI(median-26.5) compared to DA (median 0.3). This difference in correlation of EZH2 protein and RNA levels suggested post-transcriptional regulation of EZH2, likely mediated by miRNAs. We selected eleven miRNAs that strongly predicted to target EZH2 and measured their expression. Three miRNAs (miR-26a-5p,miR27a-3p and miR-498) showed significant correlation with EZH2 protein, suggesting them as regulators of EZH2, however miR-26a-5p levels decreased with grade. ChIP analyses revealed H3K27me3 modifications in miR-26a promoter suggesting feedback loop between EZH2 and miR26a. We further measured six downstream miRNA targets of EZH2 and found significant downregulation of four (miR-181a/b and 200b/c) in GBM. Interestingly, EZH2 associated miRNAs were predicted to target 25 genes in glioma-pathway, suggesting their role in tumor formation or progression. Collectively, our work suggests EZH2 and its miRNA interactors may serve as promising biomarkers for progression of astrocytic tumors and may offer novel therapeutic strategies.
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Affiliation(s)
- Vikas Sharma
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Suvendu Purkait
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Sonam Takkar
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Prit Benny Malgulwar
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Anupam Kumar
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Pankaj Pathak
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Vaishali Suri
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Mehar C Sharma
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Ashish Suri
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Shashank Sharad Kale
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Ritu Kulshreshtha
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
| | - Chitra Sarkar
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.
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30
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Wang H, Xu T, Jiang Y, Xu H, Yan Y, Fu D, Chen J. The challenges and the promise of molecular targeted therapy in malignant gliomas. Neoplasia 2015; 17:239-55. [PMID: 25810009 PMCID: PMC4372648 DOI: 10.1016/j.neo.2015.02.002] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 02/06/2015] [Indexed: 11/18/2022] Open
Abstract
Malignant gliomas are the most common malignant primary brain tumors and one of the most challenging forms of cancers to treat. Despite advances in conventional treatment, the outcome for patients remains almost universally fatal. This poor prognosis is due to therapeutic resistance and tumor recurrence after surgical removal. However, over the past decade, molecular targeted therapy has held the promise of transforming the care of malignant glioma patients. Significant progress in understanding the molecular pathology of gliomagenesis and maintenance of the malignant phenotypes will open opportunities to rationally develop new molecular targeted therapy options. Recently, therapeutic strategies have focused on targeting pro-growth signaling mediated by receptor tyrosine kinase/RAS/phosphatidylinositol 3-kinase pathway, proangiogenic pathways, and several other vital intracellular signaling networks, such as proteasome and histone deacetylase. However, several factors such as cross-talk between the altered pathways, intratumoral molecular heterogeneity, and therapeutic resistance of glioma stem cells (GSCs) have limited the activity of single agents. Efforts are ongoing to study in depth the complex molecular biology of glioma, develop novel regimens targeting GSCs, and identify biomarkers to stratify patients with the individualized molecular targeted therapy. Here, we review the molecular alterations relevant to the pathology of malignant glioma, review current advances in clinical targeted trials, and discuss the challenges, controversies, and future directions of molecular targeted therapy.
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Affiliation(s)
- Hongxiang Wang
- Department of Neurosurgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Tao Xu
- Department of Neurosurgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Ying Jiang
- Department of Neurosurgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Hanchong Xu
- Department of Neurosurgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Yong Yan
- Department of Neurosurgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Da Fu
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Juxiang Chen
- Department of Neurosurgery, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China.
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31
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Hong M, Wang N, Tan HY, Tsao SW, Feng Y. MicroRNAs and Chinese Medicinal Herbs: New Possibilities in Cancer Therapy. Cancers (Basel) 2015; 7:1643-57. [PMID: 26305257 PMCID: PMC4586788 DOI: 10.3390/cancers7030855] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 08/04/2015] [Accepted: 08/17/2015] [Indexed: 12/13/2022] Open
Abstract
In recent decades Chinese medicine has been used worldwide as a complementary and alternative medicine to treat cancer. Plenty of studies have shown that microRNAs (miRNAs) play fundamental roles in many pathological processes, including cancer, while the anti-cancer mechanisms of Chinese medicinal herbs targeting miRNAs also have been extensively explored. Our previous studies and those of others on Chinese medicinal herbs and miRNAs in various cancer models have provided a possibility of new cancer therapies, for example, up-regulating the expression of miR-23a may activate the positive regulatory network of p53 and miR-23a involved in the mechanism underlying the anti-tumor effect of berberine in hepatocellular carcinoma (HCC). In this review, we survey the role of Chinese medicinal herbal products in regulating miRNAs in cancer and the use of mediating miRNAs for cancer treatment. In addition, the controversial roles of herb-derived exogenous miRNAs in cancer treatment are also discussed. It is expected that targeting miRNAs would provide a novel therapeutic approach in cancer therapy by improving overall response and survival outcomes in cancer treatment, especially when combined with conventional therapeutics and Chinese medicinal herbal products.
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Affiliation(s)
- Ming Hong
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Ning Wang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Hor Yue Tan
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Sai-Wah Tsao
- Department of Anatomy, Li KaShing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Yibin Feng
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
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32
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Wang B, Li M, Wu Z, Li X, Li YU, Shi X, Cheng W. Associations between SOX2 and miR-200b expression with the clinicopathological characteristics and prognosis of patients with glioma. Exp Ther Med 2015; 10:88-96. [PMID: 26170917 DOI: 10.3892/etm.2015.2488] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 04/01/2015] [Indexed: 12/21/2022] Open
Abstract
The aim of the present study was to investigate the associations between microRNA (miR)-200b and sex determining region Y-box 2 (SOX2) expression with gender, age, clinical staging and pathological staging in 123 patients with glioma. The results revealed higher miR-200b expression levels in the glioma tissue than in the normal brain tissues, and a reduction in miR-200b expression with increasing pathological grading of the gliomas. Immunohistochemistry revealed a 53.7% gross expression rate of SOX2 in the glioma tissues. SOX2 and miR-200b expression levels were significantly correlated with the histological grading of the gliomas (P<0.05); however, no associations were observed with patient gender, age, pathological classification or clinical staging of the glioma (P>0.05). In patients with grade I and II gliomas, no correlation was detected between miR-200b and SOX2, while a significant correlation was observed in grade III and IV gliomas. A median 52-month follow-up revealed 1-, 3- and 5-year gross survival rates of 82.1, 50.0 and 30.7%, respectively, in the 123 patients with a glioma. Univariate analysis revealed no association between survival rate and patient age, gender, Karnofsky Performance Scale score, histological grading or clinical staging (P>0.05). However, miR-200b and SOX2 were independent prognostic factors for glioma (P<0.05). Patients with positive SOX2 expression exhibited a significantly reduced 5-year survival rate, compared with those with negative SOX2 expression (P<0.001). Furthermore, a significantly higher 5-year survival rate was observed in patients with high miR-200b expression than those with low miR-200b expression (P<0.001). The results indicated that SOX2 and miR-200b expression levels are associated with the histological grading of gliomas, but do not correlate with patient gender or age, or the pathological classification or clinical staging of the gliomas. Thus, miR-200b and SOX2 offer useful independent prognostic factors for glioma.
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Affiliation(s)
- Bin Wang
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China ; Department of Neurosurgery, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Ming Li
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China ; Department of Neurosurgery, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Zhonghua Wu
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China ; Department of Neurosurgery, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Xiqing Li
- Department of Oncology, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Y U Li
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China ; Department of Neurosurgery, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Xiwen Shi
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China ; Department of Neurosurgery, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Wenlan Cheng
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China ; Department of Neurosurgery, The People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
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Serum microRNA-210 as a potential noninvasive biomarker for the diagnosis and prognosis of glioma. Br J Cancer 2015; 112:1241-6. [PMID: 25756397 PMCID: PMC4385967 DOI: 10.1038/bjc.2015.91] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 02/04/2015] [Accepted: 02/10/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND MicroRNA-210 (miR-210) is an oncogenic miRNA previously associated with prognosis in human gliomas, an incurable tumour type of the central nervous system. Here miR-210 was investigated as a potential serum biomarker in the diagnosis and prognosis of glioma. METHODS Serum was immediately prepared from blood samples collected from patients with glioma grades I-IV at primary diagnosis (n=136) and healthy controls (n=50) from February 2007 to March 2014 in the Department of Neurosurgery of the First Affiliated Hospital of Wannan Medical College (Wuhu, China). Total RNA was isolated from serum. cDNA was synthesised with primers specific for miR-210 and miR-16-1 (internal control), and quantitative real-time RT-PCR was performed. Results were statistically analysed to determine the role of miR-210 in the diagnosis and prognosis of human glioma patients. RESULTS An approximately seven-fold increase in miR-210 expression was detected in serum samples from glioblastoma patients relative to healthy controls. A threshold expression value (2.259) was chosen from receiver operator characteristic curves (ROC), and the low and high miR-210 expression groups were analysed by multivariate Cox proportional hazard regression and Kaplan-Meier analyses. Results revealed an association of high serum miR-210 expression with tumour grade and poor patient outcome (P-values <0.001). CONCLUSIONS Serum miR-210 is a promising diagnostic and prognostic biomarker that can be detected in the peripheral blood of patients with glioma.
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Cheng Z, Wang HZ, Li X, Wu Z, Han Y, Li Y, Chen G, Xie X, Huang Y, Du Z, Zhou Y. MicroRNA-184 inhibits cell proliferation and invasion, and specifically targets TNFAIP2 in Glioma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2015; 34:27. [PMID: 25888093 PMCID: PMC4387599 DOI: 10.1186/s13046-015-0142-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 03/02/2015] [Indexed: 12/12/2022]
Abstract
Background miRNA-184 is an oncogene in human hepatocellular carcinoma but acts as a tumor suppressor in tongue squamous cell carcinoma. Studies have shown that miR-184 was down-regulated in glioma and TNFα-induced protein 2 (TNFAIP2) was closely related to tumorigenesis. This study aimed to determine the functions of miR-184 in glioma and the mechanisms of miRNA-184-TNFAIP2 mediated glioma progression. Methods Real-time reverse-transcription PCR detected expression of miR-184 and TNFAIP2. U87 and U251 cells were transfected with miR-184 mimic, inhibitor, or negative control miRNA, and their invasion abilities were assayed. Cellular proliferation was measured by the cell counting kit-8 assay. miR-184 effects on glioma cell apoptosis and cell cycle were assessed by flow cytometer. Biological information software have predicted that miR-184 could target TNFα-induced protein 2 (TNFAIP2), Which was further validated by Western blot and qRT-PCR in glioma cells. In vivo, U87 cells transduced with either lentiviral over-expressed miR-184 or control lentivirus were injected into nude mice subcutaneously and intracranial respectively. Results Expression of miR-184 was significantly lower in glioma tissues and cell-lines compared to normal brain tissues. Protein and mRNA expression of TNFAIP2 were inversely correlated with miR-184 in glioma. In vitro, proliferation and invasion abilities were also decreased in U87 and U251 cells after transfection with miR-184 mimic. In vivo, the xenografted tumor size in the miR-184 overexpressing group were smaller than the miR-NC group. Concordantly, U87 and U251 cells transfected with miR-184 mimic had a higher apoptosis rate, triggering an accumulation of cells at the G0/G1 phase and decreased cells in S-phase. Conclusions miR-184 could regulate TNFAIP2 expression and affected its translation in glioma. miR-184 could also inhibit glioma progression and might serve as a novel therapeutic target in glioma. Electronic supplementary material The online version of this article (doi:10.1186/s13046-015-0142-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zhe Cheng
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Hang Zhou Wang
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Xuetao Li
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Zhiwu Wu
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Yong Han
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Yanyan Li
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Guilin Chen
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Xueshun Xie
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Yulun Huang
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Ziwei Du
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
| | - Youxin Zhou
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu, 215006, Peoples Republic of China.
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Padfield E, Ellis HP, Kurian KM. Current Therapeutic Advances Targeting EGFR and EGFRvIII in Glioblastoma. Front Oncol 2015; 5:5. [PMID: 25688333 PMCID: PMC4310282 DOI: 10.3389/fonc.2015.00005] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 01/09/2015] [Indexed: 01/23/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) and EGFRvIII analysis is of current interest in glioblastoma – the most common malignant primary CNS tumor, because of new EGFRvIII vaccine trials underway. EGFR activation in glioblastoma promotes cellular proliferation via activation of MAPK and PI3K–Akt pathways, and EGFRvIII is the most common variant, leading to constitutively active EGFR. This review explains EGFR and EGFRvIII signaling in GBM; describes targeted therapy approaches to date including tyrosine kinase inhibitor, antibody-based therapies, vaccines and pre-clinical RNA-based therapies, and discusses the difficulties encountered with these approaches including pathway redundancy and intratumoral heterogeneity.
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Affiliation(s)
| | - Hayley P Ellis
- Brain Tumour Research Group, Institute of Clinical Neurosciences, University of Bristol , Bristol , UK
| | - Kathreena M Kurian
- Brain Tumour Research Group, Institute of Clinical Neurosciences, University of Bristol , Bristol , UK
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Majchrzak-Celińska A, Paluszczak J, Szalata M, Barciszewska AM, Nowak S, Kleszcz R, Sherba A, Baer-Dubowska W. The methylation of a panel of genes differentiates low-grade from high-grade gliomas. Tumour Biol 2015; 36:3831-41. [PMID: 25563195 DOI: 10.1007/s13277-014-3025-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 12/26/2014] [Indexed: 12/29/2022] Open
Abstract
Epigenetic changes play an important role in the pathogenesis of gliomas and have the potential to become clinically useful biomarkers. The aim of this study was the evaluation of the profile of promoter methylation of 13 genes selected based on their anticipated diagnostic and/or prognostic value. Methylation-specific PCR (MSP) was used to assess the methylation status of MGMT, ERCC1, hMLH1, ATM, CDKN2B (p15INK4B), p14ARF, CDKN2A (p16INK4A), RASSF1A, RUNX3, GATA6, NDRG2, PTEN, and RARβ in a subset of 95 gliomas of different grades. Additionally, the methylation status of MGMT and NDRG2 was analyzed using pyrosequencing (PSQ). The results revealed that the methylation index of individual glioma patients correlates with World Health Organization (WHO) tumor grade and patient's age. RASSF1A, RUNX3, GATA6, and MGMT were most frequently methylated, whereas the INK4B-ARF-INK4A locus, PTEN, RARβ, and ATM were methylated to a lesser extent. ERCC1, hMLH1, and NDRG2 were unmethylated. RUNX3 methylation correlated with WHO tumor grade and patient's age. PSQ confirmed significantly higher methylation levels of MGMT and NDRG2 as compared with normal, non-cancerous brain tissue. To conclude, DNA methylation of a whole panel of selected genes can serve as a tool for glioma aggressiveness prediction.
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Affiliation(s)
- Aleksandra Majchrzak-Celińska
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, ul. Święcickiego 4, 60-781, Poznań, Poland
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Qu S, Guan J, Liu Y. Identification of microRNAs as novel biomarkers for glioma detection: a meta-analysis based on 11 articles. J Neurol Sci 2014; 348:181-7. [PMID: 25510379 DOI: 10.1016/j.jns.2014.11.036] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 11/22/2014] [Accepted: 11/30/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Glioma is the most common and lethal primary brain tumors, and is regarded as one of the deadliest of human cancers. To date, a growing number of studies have tested the diagnostic accuracy of microRNAs (miRNAs) in glioma detection and altered levels of characteristic miRNAs have also been identified in glioma. However, there are some conflicting conclusions. Thus, we conducted this meta-analysis to evaluate the overall accuracy of miRNAs in the diagnosis of glioma. METHODS A comprehensive literature search was conducted using a combination of keywords. The random effect model was used to calculate the pooled diagnostic parameters. The summary receiver operator characteristic (SROC) curves were plotted to assess the overall diagnostic performance of miRNAs. Subgroup and sensitivity analyses were conducted to analyze the potential sources of heterogeneity. RESULTS In total, 28 studies from 11 articles covering 1729 patients and 1491 controls were available in this meta-analysis. The pooled sensitivity, specificity, PLR, NLR, DOR, and AUC were 0.87 (95% CI: 0.83-0.91), 0.87 (95% CI: 0.81-0.91), 6.6 (95% CI: 4.5-9.6), 0.15 (95% CI: 0.10-0.21), 45 (95% CI: 23-90), and 0.93 (95% CI: 0.91-0.95), respectively. Subgroup analysis demonstrated that panels of multiple miRNAs could largely improve the diagnostic accuracy. An independent meta-analysis of five included studies was conducted to evaluate the diagnostic efficacy of miR-21 in patients with glioma, with a pooled sensitivity of 0.82, specificity of 0.94, PLR of 13.2, NLR of 0.19, DOR of 69 and AUC of 0.95. CONCLUSION This meta-analysis indicated the great potential of miRNAs, especially panels of multiple miRNAs, as promising biomarkers in glioma detection and monitoring. As one of the most representative miRNAs, we also found that a single miR-21 could be a powerful clinical biomarker in glioma diagnosis.
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Affiliation(s)
- Shengtao Qu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Junhong Guan
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China.
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Shang C, Guo Y, Hong Y, Liu YH, Xue YX. MiR-21 up-regulation mediates glioblastoma cancer stem cells apoptosis and proliferation by targeting FASLG. Mol Biol Rep 2014; 42:721-7. [PMID: 25394756 DOI: 10.1007/s11033-014-3820-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 11/08/2014] [Indexed: 11/30/2022]
Abstract
To investigate whether miR-21 can affect the apoptosis and proliferation of glioblastoma cancer stem cells (GSCs) from down-regulating FASLG. The expression of miRNA-21 was detected by quantitative real-time PCR in normal brain tissue and glioblastoma samples, and the changes of miRNA-21 expression between GSCs and non-GSCs were also detected. The apoptosis and proliferation ability of miR-21 in GSCs were analyzed by MTT and flow cytometry assay after anti-miR-21 transfection. For the regulation mechanism analysis of miR-21, TargetScan, PicTar and microRNA were selected to predict some potential target genes of miR-21. The predicted gene was identified to be the direct and specific target gene of miR-21 by luciferase activities assay and western blot. RNA interference technology was used to confirm the apoptosis and proliferation effects of miR-21 were directly induced by FASLG. The expression of miR-21 increased significantly in glioblastoma contrast to normal brain tissue, and miR-21 up-regulated in GSCs remarkably. The proliferation of GSCs cell could be inhibited with high-expression of miR-21 and this effect could be restored by miR-21 knocked down. Mechanism analysis revealed that FASLG was a specific and direct target gene of miR-21. The advanced effects of anti-miR-21 on GSCs apoptosis and proliferation were mediated by expression of silenced FASLG. In summary, aberrantly expressed miR-21 regulates GSCs apoptosis and proliferation partly through directly down-regulating FASLG protein expression in GSCs and this might offer a new potential therapeutic stratagem for glioblastoma.
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Affiliation(s)
- Chao Shang
- Department of Neurobiology, China Medical University, No. 92 Beier Road, Heping District, Shenyang, 110001, People's Republic of China
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Shou J, Gu S, Gu W. Identification of dysregulated miRNAs and their regulatory signature in glioma patients using the partial least squares method. Exp Ther Med 2014; 9:167-171. [PMID: 25452796 PMCID: PMC4247319 DOI: 10.3892/etm.2014.2041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 09/25/2014] [Indexed: 12/20/2022] Open
Abstract
Using microarray data, the present study identified differentially expressed microRNAs (miRNAs) and evaluated their regulatory characteristics in high-grade glioma patients, with the aim to further the understanding into the underlying etiology of the condition. Previously, studies have generally implemented regression or variance analysis, which ignores various background biological factors. However, in the present study, analysis was performed with microarray data collected from the Gene Expression Omnibus database using a partial least squares-based method, which is more sensitive in handling microarray data. Among the six identified differentially expressed miRNAs, hsa-miR-21 and hsa-miR-612 have been previously reported to be associated with glioma. In addition, the remaining miRNAs, hsa-miR-4680, hsa-miR-1908, hsa-miR-4656 and hsa-miR-4467, may also contribute to glioma progression since they are all associated with the tumorigenesis of other types of cancer. Moreover, the expression levels of hsa-miR-1908, hsa-miR-4656 and hsa-miR-4680 have been identified to significantly correlate with the survival rate. Enrichment analysis of the dysregulated target genes revealed that the selected miRNAs primarily affect biological processes in the nervous system and the protein phosphorylation process. Therefore, the results may offer a new understanding into the pathogenesis of high-grade glioma.
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Affiliation(s)
- Jiajun Shou
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Shixin Gu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Wentao Gu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
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Yan Z, Wang J, Wang C, Jiao Y, Qi W, Che S. miR-96/HBP1/Wnt/β-catenin regulatory circuitry promotes glioma growth. FEBS Lett 2014; 588:3038-46. [PMID: 24931370 DOI: 10.1016/j.febslet.2014.06.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 06/03/2014] [Accepted: 06/05/2014] [Indexed: 11/29/2022]
Abstract
We found that miR-96 is overexpressed in glioma, and its level inversely correlates with the survival of patients. The reduction in miR-96 abundance suppresses the proliferation and colony formation of glioma cells. The tumorigenicity of U-87 MG cells is reduced by miR-96 silencing. miR-96 contributes to the activation of Wnt/β-catenin pathway in glioma cells. HMG-box transcription factor 1 (HBP-1), a Wnt/β-catenin pathway inhibitor, is suppressed by miR-96. The reactivation of Wnt/β-catenin signaling causes an increase in the proliferation of glioma cells, and a decrease in miR-96 expression. On the other hand, HBP1 silencing promotes miR-96 expression. Collectively, miR-96 contributes to the progression of glioma by enhancing the activation of the Wnt/β-catenin pathway, and the miR-96/HBP1/Wnt/β-catenin regulatory circuitry promotes the proliferation of glioma cells.
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Affiliation(s)
- Zhiyong Yan
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Jianpeng Wang
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Chao Wang
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Yingbing Jiao
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Weiguo Qi
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Shusheng Che
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China.
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Wang G, Zhao Y, Zheng Y. miR-122/Wnt/β-catenin regulatory circuitry sustains glioma progression. Tumour Biol 2014; 35:8565-72. [DOI: 10.1007/s13277-014-2089-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 05/12/2014] [Indexed: 12/13/2022] Open
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Sun J, Shi H, Lai N, Liao K, Zhang S, Lu X. Overexpression of microRNA-155 predicts poor prognosis in glioma patients. Med Oncol 2014; 31:911. [PMID: 24623016 DOI: 10.1007/s12032-014-0911-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 03/04/2014] [Indexed: 12/12/2022]
Abstract
MicroRNA-155 is highly expressed in many malignant tumors with poor prognosis, which regulates cell apoptosis, proliferation, invasion, metastasis, tumor angiogenesis, and metabolism. This study aims at investigating the clinical significance of miR-155 expression in human gliomas. Real-time quantitative PCR was used to detect the expression levels of miR-155 in 131 glioma and 16 normal brain tissues. The association of miR-155 expression with clinicopathological factors and prognosis of glioma patients were analyzed. The expression levels of miR-155 were significantly higher in glioma tissues than that in normal brain tissues (P < 0.001), which was associated with high pathological grade (P < 0.001) and low Karnofsky Performance Status score (P = 0.022). As a result of Kaplan-Meier survival and Cox regression analyses, overall survival (OS) rates and progression-free survival were significantly poorer in high-expression group relative to low-expression group (both P < 0.001). Furthermore, miR-155 expression was significantly associated with poor OS (P < 0.001) and PFS (P = 0.001) in glioma patients who had high pathological grades (III-IV) as calculated by subgroup analyses. These findings reveal that miR-155 expression might be an independent prognostic factor and a therapeutic target for human glioma.
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Affiliation(s)
- Jun Sun
- Department of Neurosurgery, Nanjing Medical University Affiliated Wuxi Second Hospital, No. 68 Zhongshan Road, Wuxi, 214002, China
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