1
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Messina S. The RAS oncogene in brain tumors and the involvement of let-7 microRNA. Mol Biol Rep 2024; 51:531. [PMID: 38637419 PMCID: PMC11026240 DOI: 10.1007/s11033-024-09439-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 03/11/2024] [Indexed: 04/20/2024]
Abstract
RAS oncogenes are master regulator genes in many cancers. In general, RAS-driven cancers have an oncogenic RAS mutation that promotes disease progression (colon, lung, pancreas). In contrast, brain tumors are not necessarily RAS-driven cancers because RAS mutations are rarely observed. In particular, glioblastomas (the most lethal brain tumor) do not appear to have dominant genetic mutations that are suitable for targeted therapy. Standard treatment for most brain tumors continues to focus on maximal surgical resection, radiotherapy and chemotherapy. Yet the convergence of genomic aberrations such as EGFR, PDGFR and NF1 (some of which are clinically effective) with activation of the RAS/MAPK cascade is still considered a key point in gliomagenesis, and KRAS is undoubtedly a driving gene in gliomagenesis in mice. In cancer, microRNAs (miRNA) are small, non-coding RNAs that regulate carcinogenesis. However, the functional consequences of aberrant miRNA expression in cancer are still poorly understood. let-7 encodes an intergenic miRNA that is classified as a tumour suppressor, at least in lung cancer. Let-7 suppresses a plethora of oncogenes such as RAS, HMGA, c-Myc, cyclin-D and thus suppresses cancer development, differentiation and progression. let-7 family members are direct regulators of certain RAS family genes by binding to the sequences in their 3'untranslated region (3'UTR). let-7 miRNA is involved in the malignant behaviour in vitro-proliferation, migration and invasion-of gliomas and stem-like glioma cells as well as in vivo models of glioblastoma multiforme (GBM) via KRAS inhibition. It also increases resistance to certain chemotherapeutic agents and radiotherapy in GBM. Although let-7 therapy is not yet established, this review updates the current state of knowledge on the contribution of miRNA let-7 in interaction with KRAS to the oncogenesis of brain tumours.
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Affiliation(s)
- Samantha Messina
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, 00146, Rome, Italy.
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2
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Lin Q, Chen Z, Shen ZL, Xue F, Qin JJ, Kang XP, Chen ZR, Xia ZY, Gao L, Chen XZ. TRAF3IP3 promotes glioma progression through the ERK signaling pathway. Front Oncol 2022; 12:776834. [PMID: 36185204 PMCID: PMC9523251 DOI: 10.3389/fonc.2022.776834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 08/19/2022] [Indexed: 12/02/2022] Open
Abstract
TRAF3IP3 was reportedly associated with poor prognosis in patients with melanoma; however, its role in glioma is unknown. We aimed to demonstrate the relationship between TRAF3IP3 and glioma and to investigate the potential role of TRAF3IP3 in glioma. Datasets were collected from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. We used the Wilcoxon rank-sum test to compared TRAF3IP3 expression in normal and glioma tissues. Kaplan–Meier analysis was performed to evaluate the correlation between TRAF3IP3 and patient survival rate. Gene set enrichment analysis (GSEA) was used to annotate the biological function of TRAF3IP3 in glioma. We also examined the effects of TRAF3IP3 on glioma progression, including characteristics such as cell proliferation, migration, and invasion, using cell proliferation, wound healing, and Transwell assays, respectively, paired with in vitro glioma cell lines and in vivo mouse xenograft models to determine the molecular mechanisms underlying these effects. High TRAF3IP3 expression in glioma tissues was associated with patients with neoplasm cancer tissue source site, and poorer overall survival (OS) (p = 0.03), which was validated using TCGA. GSEA revealed the enrichment of neuroactive ligand–receptor interactions, the olfactory pathway, proteasome pathway, cytokine–cytokine receptor interactions, and calcium signaling pathway in the TRAF3IP3 high-expression phenotype. TRAF3IP3 knockdown markedly suppressed the proliferation, migration, and invasion abilities of U251 glioma cells, whereas TRAF3IP3 overexpression notably promoted the progression of U118 cell tumors. Mechanistic studies revealed that TRAF3IP3 upregulated p-ERK expression in glioma cells. Notably, the ERK signaling pathway inhibitor U0126 drastically attenuated the effects of TRAF3IP3 on p-ERK and markedly blocked its tumor-promoting activity. TRAF3IP3 overexpression also promoted in vivo tumor growth in a nude mouse xenograft model. Collectively, TRAF3IP3 stimulates glioma cell proliferation, migration, and invasion, at least partly by activating the ERK signaling pathway. We hypothesize that TRAF3IP3 may participate in glioma development via the ERK signaling pathway and that elevated TRAF3IP3 expression may serve as a potential biomarker for glioma prognosis.
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Affiliation(s)
- Qi Lin
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhen Chen
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhao-Li Shen
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fei Xue
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jia-Jun Qin
- Tongji University School of Medicine, Shanghai, China
| | - Xi-Peng Kang
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhong-Rong Chen
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhong -Yuan Xia
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liang Gao
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Liang Gao, ; Xian-Zhen Chen,
| | - Xian-Zhen Chen
- Department of Neurosurgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Liang Gao, ; Xian-Zhen Chen,
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3
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Ghafouri-Fard S, Shirvani-Farsani Z, Hussen BM, Taheri M, Jalili Khoshnoud R. Emerging role of non-coding RNAs in the regulation of KRAS. Cancer Cell Int 2022; 22:68. [PMID: 35139853 PMCID: PMC8827276 DOI: 10.1186/s12935-022-02486-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/24/2022] [Indexed: 01/17/2023] Open
Abstract
The Kirsten ras oncogene KRAS is a member of the small GTPase superfamily participating in the RAS/MAPK pathway. A single amino acid substitution in KRAS gene has been shown to activate the encoded protein resulting in cell transformation. This oncogene is involved in the malignant transformation in several tissues. Notably, numerous non-coding RNAs have been found to interact with KRAS protein. Such interaction results in a wide array of human disorders, particularly cancers. Orilnc1, KIMAT1, SLCO4A1-AS1, LINC01420, KRAS1P, YWHAE, PART1, MALAT1, PCAT-1, lncRNA-NUTF2P3-001 and TP53TG1 are long non-coding RNAs (lncRNAs) whose interactions with KRAS have been verified in the context of cancer. miR-143, miR-96, miR-134 and miR-126 have also been shown to interact with KRAS in different tissues. Finally, circITGA7, circ_GLG1, circFNTA and circ-MEMO1 are examples of circular RNAs (circRNAs) that interact with KRAS. In this review, we describe the interaction between KRAS and lncRNAs, miRNAs and circRNAs, particularly in the context of cancer.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeinab Shirvani-Farsani
- Department of Cellular and Molecular Biology, Faculty of Life Sciences and Technology, Shahid Beheshti University, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany. .,Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Reza Jalili Khoshnoud
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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4
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Wu C, Su J, Long W, Qin C, Wang X, Xiao K, Li Y, Xiao Q, Wang J, Pan Y, Liu Q. LINC00470 promotes tumour proliferation and invasion, and attenuates chemosensitivity through the LINC00470/miR-134/Myc/ABCC1 axis in glioma. J Cell Mol Med 2020; 24:12094-12106. [PMID: 32916774 PMCID: PMC7579701 DOI: 10.1111/jcmm.15846] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/30/2020] [Accepted: 08/19/2020] [Indexed: 12/24/2022] Open
Abstract
Glioma is the most common primary malignant tumour in the brain; temozolomide (TMZ) is the most prevalent chemotherapeutic drug currently used to combat this cancer. We reported previously that the long intergenic non‐protein coding RNA 470 (LINC00470) is a novel prognostic biomarker for glioma and promotes the tumour growth in an intracranial transplantation mouse model. However, the effects of LINC00470 on glioma cell proliferation, invasion and TMZ chemosensitivity, as well as its molecular mechanism, remain unclear. In this study, we found elevated expression levels of LINC00470 and MYC in glioma tissues and cells and decreased expression of microRNA‐134 (miR‐134). Functional studies have shown that LINC00470 promotes proliferation and invasion, and attenuates chemosensitivity of glioma cells, while miR‐134 exerts the opposite effect. In the rescue experiments, the tumorigenic effect of LINC00470 was offset by miR‐134. In the mechanism study, we found that LINC00470 was a competitive endogenous RNA (ceRNA) of miR‐134 and that miR‐134 can directly target MYC and negatively regulate its expression. Furthermore, MYC was positively correlated with ATP‐binding cassette subfamily C member 1 (ABCC1) expression in glioma cells and MYC up‐regulated ABCC1 expression. Further studies found that LINC00470 regulated MYC by sponging miR‐134 to regulate the expression of ABCC1. We concluded that LINC00470 promoted the expression of MYC and ABCC1 by suppressing miR‐134, thus promoting glioma cell proliferation and invasion, and attenuating TMZ chemosensitivity. Moreover, the LINC00470/miR‐134/MYC/ABCC1 axis constitutes a potential therapeutic target.
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Affiliation(s)
- Changwu Wu
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China.,Institute of Anatomy, University of Leipzig, Leipzig, Germany
| | - Jun Su
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Wenyong Long
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Chaoying Qin
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Xiangyu Wang
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Kai Xiao
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Yang Li
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Qun Xiao
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Junquan Wang
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Yimin Pan
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China
| | - Qing Liu
- Department of Neurosurgery, Xiangya Hospital, Central-South University, Changsha, China.,Institute of Skull Base Surgery and Neuro-oncology at Hunan, Changsha, China
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5
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Choe N, Shin S, Joung H, Ryu J, Kim Y, Ahn Y, Kook H, Kwon D. The microRNA miR-134-5p induces calcium deposition by inhibiting histone deacetylase 5 in vascular smooth muscle cells. J Cell Mol Med 2020; 24:10542-10550. [PMID: 32783377 PMCID: PMC7521311 DOI: 10.1111/jcmm.15670] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 06/30/2020] [Accepted: 07/03/2020] [Indexed: 12/30/2022] Open
Abstract
Calcium deposition in vascular smooth muscle cells (VSMCs) is a form of ectopic ossification in blood vessels. It can result in rigidity of the vasculature and an increase in cardiac events. Here, we report that the microRNA miR-134-5p potentiates inorganic phosphate (Pi)-induced calcium deposition in VSMCs by inhibiting histone deacetylase 5 (HDAC5). Using miRNA microarray analysis of Pi-treated rat VSMCs, we first selected miR-134-5p for further evaluation. Quantitative RT-PCR confirmed that miR-134-5p was increased in Pi-treated A10 cells, a rat VSMC line. Transfection of miR-134-5p mimic potentiated the Pi-induced increase in calcium contents. miR-134-5p increased the amounts of bone runt-related transcription factor 2 (RUNX2) protein and bone morphogenic protein 2 (BMP2) mRNA in the presence of Pi but decreased the expression of osteoprotegerin (OPG). Bioinformatic analysis showed that the HDAC5 3'untranslated region (3'UTR) was one of the targets of miR-134-5p. The luciferase construct containing the 3'UTR of HDAC5 was down-regulated by miR-134-5p mimic in a dose-dependent manner in VSMCs. Overexpression of HDAC5 mitigated the calcium deposition induced by miR-134-5p. Our results suggest that a Pi-induced increase of miR-134-5p may cause vascular calcification through repression of HDAC5.
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Affiliation(s)
- Nakwon Choe
- Department of PharmacologyChonnam National University Medical SchoolHwasunRepublic of Korea
| | - Sera Shin
- Department of PharmacologyChonnam National University Medical SchoolHwasunRepublic of Korea
| | - Hosouk Joung
- Department of PharmacologyChonnam National University Medical SchoolHwasunRepublic of Korea
| | - Juhee Ryu
- Department of PharmacologyChonnam National University Medical SchoolHwasunRepublic of Korea
| | - Young‐Kook Kim
- Department of BiochemistryChonnam National University Medical SchoolHwasunRepublic of Korea
| | - Youngkeun Ahn
- Department of CardiologyChonnam National University HospitalGwangjuRepublic of Korea
| | - Hyun Kook
- Department of PharmacologyChonnam National University Medical SchoolHwasunRepublic of Korea
| | - Duk‐Hwa Kwon
- Department of PharmacologyChonnam National University Medical SchoolHwasunRepublic of Korea
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6
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Tong H, Zhao K, Wang J, Xu H, Xiao J. CircZNF609/miR-134-5p/BTG-2 axis regulates proliferation and migration of glioma cell. J Pharm Pharmacol 2019; 72:68-75. [PMID: 31721211 DOI: 10.1111/jphp.13188] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 10/21/2019] [Indexed: 12/14/2022]
Abstract
Abstract
Objectives
MicroRNAs are abundant in eukaryotic cells and play key roles in cancers. Circular RNAs (CircRNAs) served as the competing endogenous RNAs (ceRNAs) in mediating multiple cell processes. This study aims to define the role of CircRNA CircZNF609/miR-134-5p in glioma as well as the underlying regulating mechanism.
Methods
Relative expression of miR-134-5p, CircZNF609 and BTG-2 mRNA was determined by quantitative real-time PCR. Cell proliferation was analysed by CCK-8 assay. Cell migration was assessed by cell wound scratch assay. The direct regulatory of miR-134-5p on BTG-2 and CircZNF609 was verified by luciferase report gene assay.
Key findings
MiR-134-5p was significantly upregulated in glioma cells. The overexpression of miR-134-5p inhibited cell proliferation and migration of glioma cell U251 and U87. Reversely, knock-down of miR-134-5p enhanced cell proliferation and migration. Both BTG-2 and CircZNF609 are the direct targets of miR-134-5p, and their expression could be negatively regulated by miR-134-5p. CircZNF609 was significantly upregulated in U251 and U87 cells and acted as an oncogene to promote cell proliferation and cell migration of glioma cell U251 and U87.
Conclusions
These data proved that CircZNF609 served as a competing RNA to bind miR-134-5p that promoted BTG-2 expression leading to reduced proliferation and migration of glioma cell.
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Affiliation(s)
- Hui Tong
- Department of Neurosurgery, Linyi Central Hospital, Linyi, China
| | - Kai Zhao
- Department of Neurosurgery, The First Hospital of Qiqihar, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, China
| | - Jiangjie Wang
- Department of Neurosurgery, Linyi Central Hospital, Linyi, China
| | - Hui Xu
- Department of Neurosurgery, Lianshui County People's Hospital, the Affiliated Lianshui County People's Hospital of Kangda College of Nanjing Medical University, Huai'an, China
| | - Jianqi Xiao
- Department of Neurosurgery, The First Hospital of Qiqihar, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, China
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7
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Roncarati R, Lupini L, Shankaraiah RC, Negrini M. The Importance of microRNAs in RAS Oncogenic Activation in Human Cancer. Front Oncol 2019; 9:988. [PMID: 31612113 PMCID: PMC6777413 DOI: 10.3389/fonc.2019.00988] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 09/16/2019] [Indexed: 12/12/2022] Open
Abstract
microRNAs (miRNAs) regulate gene expression by modulating the translation of protein-coding RNAs. Their aberrant expression is involved in various human diseases, including cancer. Here, we summarize the experimental pieces of evidence that proved how dysregulated miRNA expression can lead to RAS (HRAS, KRAS, or NRAS) activation irrespective of their oncogenic mutations. These findings revealed relevant pathogenic mechanisms as well as mechanisms of resistance to target therapies. Based on this knowledge, potential approaches for the control of RAS oncogenic activation can be envisioned.
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Affiliation(s)
- Roberta Roncarati
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy.,CNR, Institute of Genetics and Biomedical Research, National Research Council of Italy, Milan, Italy
| | - Laura Lupini
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Ram C Shankaraiah
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Massimo Negrini
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
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8
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Antitumor Effect of Pyrogallol via miR-134 Mediated S Phase Arrest and Inhibition of PI3K/AKT/Skp2/cMyc Signaling in Hepatocellular Carcinoma. Int J Mol Sci 2019; 20:ijms20163985. [PMID: 31426282 PMCID: PMC6720540 DOI: 10.3390/ijms20163985] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/10/2019] [Accepted: 08/13/2019] [Indexed: 12/24/2022] Open
Abstract
Though Pyrogallol, one of the natural polyphenols, was known to have anti-inflammatory and antitumor effects in breast and colon cancers, the underlying antitumor mechanisms of Pyrogallol, still remain unclear so far. Here, the antitumor mechanisms of Pyrogallol were elucidated in Hep3B and Huh7 hepatocellular carcinoma cells (HCCs). Pyrogallol showed significant cytotoxicity and reduced the number of colonies in Hep3B and Huh7 cells. Interestingly, Pyrogallol induced S-phase arrest and attenuated the protein expression of CyclinD1, Cyclin E, Cyclin A, c-Myc, S-phase kinase-associated protein 2 (Skp2), p-AKT, PI3K, increased the protein expression of p27, and also reduced the fluorescent expression of Cyclin E in Hep3B and Huh7 cells. Furthermore, Pyrogallol disturbed the interaction between Skp2, p27, and c-Myc in Huh7 cells. Notably, Pyrogallol upregulated miRNA levels of miR-134, and conversely, miR-134 inhibition rescued the decreased expression levels of c-Myc, Cyclin E, and Cyclin D1 and increased the expression of p27 by Pyrogallol in Huh7 cells. Taken together, our findings provide insight that Pyrogallol exerts antitumor effects in HCCs via miR-134 activation-mediated S-phase arrest and inhibition of PI3K/AKT/Skp2/cMyc signaling as a potent anticancer candidate.
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9
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Chen H, Zhang Y, Su H, Shi H, Xiong Q, Su Z. Overexpression of miR-1283 Inhibits Cell Proliferation and Invasion of Glioma Cells by Targeting ATF4. Oncol Res 2018; 27:325-334. [PMID: 29716673 PMCID: PMC7848429 DOI: 10.3727/096504018x15251282086836] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
It is well known that activating transcription factor 4 (ATF4) expression is closely associated with progression of many cancers. We found that miR-1283 could directly target ATF4. However, the precise mechanisms of miR-1283 in glioma have not been well clarified. Our study aimed to explore the interaction between ATF4 and miR-1283 in glioma. In this study, we found that the level of miR-1283 was dramatically decreased in glioma tissues and cell lines, the expression of ATF4 was significantly increased, and the low level of miR-1283 was closely associated with high expression of ATF4 in glioma tissues. Moreover, introduction of miR-1283 significantly inhibited proliferation and invasion of glioma cells. However, knockdown of miR-1283 promoted the proliferation and invasion in glioma cells. Bioinformatics analysis predicted that the ATF4 was a potential target gene of miR-1283. Luciferase reporter assay demonstrated that miR-1283 could directly target ATF4. In addition, knockdown of ATF4 had similar effects with miR-1283 overexpression on glioma cells. Upregulation of ATF4 in glioma cells partially reversed the inhibitory effects of miR-1283 mimic. Overexpression of miR-1283 inhibited cell proliferation and invasion of glioma cells by directly downregulating ATF4 expression.
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Affiliation(s)
- Hao Chen
- Department of Neurosurgery, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Yi Zhang
- Department of Neurosurgery, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Hai Su
- Department of Neurosurgery, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Hui Shi
- Department of Neurosurgery, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Qijiang Xiong
- Department of Neurosurgery, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Zulu Su
- Department of Neurosurgery, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
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10
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Wang ZL, Zhang CB, Wang Z, Meng XQ, Liu XJ, Han B, Duan CB, Cai JQ, Hao ZF, Chen MH, Jiang T, Li YL, Jiang CL, Wang HJ. MiR-134, epigenetically silenced in gliomas, could mitigate the malignant phenotype by targeting KRAS. Carcinogenesis 2018; 39:389-396. [PMID: 29432532 DOI: 10.1093/carcin/bgy022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Zhi-liang Wang
- Department of Molecular Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Chuan-bao Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zheng Wang
- Department of Molecular Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Xiang-qi Meng
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
| | - Xiao-juan Liu
- Hematological Department, Harbin Institute of Hematology and Oncology, Harbin, Heilong Jiang Province, China
| | - Bo Han
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
| | - Chun-bin Duan
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
| | - Jin-quan Cai
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
| | - Zhong-fei Hao
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
| | - Ming-hui Chen
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
| | - Tao Jiang
- Department of Molecular Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yong-li Li
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
| | - Chuan-lu Jiang
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
| | - Hong-jun Wang
- Department of Neurosurgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, Heilong Jiang Province, China
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11
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MicroRNA-103 suppresses glioma cell proliferation and invasion by targeting the brain-derived neurotrophic factor. Mol Med Rep 2017; 17:4083-4089. [PMID: 29257320 DOI: 10.3892/mmr.2017.8282] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 09/06/2017] [Indexed: 11/05/2022] Open
Abstract
Glioma is the most common and aggressive of malignant brain tumours. MicroRNAs (miRNAs/miRs) are involved in tumour development of various human cancers, including glioma. Therefore, miRNAs may have potential tumour diagnostic, prognostic and therapeutic values in human glioma. miR‑103 is abnormally expressed in various human cancer types. However, the detailed expression pattern, biological functions and underlying molecular mechanism of miR‑103 in glioma remain unclear. Therefore, the present study aimed to investigate the expression, biological roles and underlying mechanisms of miR‑103 in glioma. Results of the present study demonstrated that miR‑103 was significantly down‑regulated in glioma tissues and cell lines. Functional experiments demonstrated that miR‑103 overexpression inhibited the proliferation and invasion of glioma cells in vitro. Additionally, brain‑derived neurotrophic factor (BDNF) was identified as a direct functional target of miR‑103 in glioma. Furthermore, mRNA and protein expression levels of BDNF were highly upregulated in glioma tissues compared with normal brain tissues. Spearman's correlation analysis indicated a negative association between miR‑103 and BDNF mRNA expression levels in glioma tissues. Furthermore, rescue experiments demonstrated that BDNF up‑regulation reversed the suppressive effects of miR‑103 on glioma cell proliferation and invasion. Therefore, the authors of the present study hypothesized that the interaction between miR‑103 and BDNF serves a role in glioma progression and, in the future, may serve as a therapeutic target for glioma treatment.
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12
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Lu X, Wang H, Su Z, Cai L, Li W. MicroRNA-342 inhibits the progression of glioma by directly targeting PAK4. Oncol Rep 2017; 38:1240-1250. [PMID: 28677773 DOI: 10.3892/or.2017.5783] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 06/20/2017] [Indexed: 11/06/2022] Open
Abstract
Glioma is an extremely aggressive and lethal type of brain tumour that originates from glial cells. MicroRNA (miRNA) dysregulation has been implicated in the occurrence and progression of many human cancers, including glioma. Thus, some specific miRNAs are potential therapeutic targets for glioma diagnosis, therapy and prognosis. MicroRNA-342 (miR‑342) has been reported to be abnormally expressed in various types of cancer. However, the precise roles of miR‑342 in glioma remain unknown. The present study showed that miR‑342 is relatively downregulated in glioma tissues and cell lines compared with that in adjacent normal tissues and normal human astrocytes. We observed that low miR‑342 expression levels are correlated with advanced WHO grades and low KPS scores of glioma patients. In addition, the results of the functional assays demonstrated that miR‑342 overexpression inhibits the proliferation and invasion of glioma cells and induces apoptosis. Further investigation revealed that P21 activated kinases 4 (PAK4) is a direct target of miR‑342 in glioma. PAK4 was significantly upregulated in glioma tissues and inversely correlated with miR‑342 expression. Moreover, PAK4 knockdown can mimic the effects of miR‑342 on glioma cell proliferation, invasion and apoptosis. Notably, restoration of expression of PAK4 reversed the suppressive effects induced by the miR‑342 in the glioma cells. The upregulation of miR‑342 inactivated the AKT and ERK pathways in glioma. These findings may contribute to the understanding of the molecular mechanism underlying the carcinogenesis and progression of glioma, and to provide novel therapeutic target for the treatment of glioma patients.
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Affiliation(s)
- Xianghe Lu
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Haowen Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhipeng Su
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Lin Cai
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Wenfeng Li
- Department of Radiation Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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13
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Quan Y, Song Q, Wang J, Zhao L, Lv J, Gong S. MiR-1202 functions as a tumor suppressor in glioma cells by targeting Rab1A. Tumour Biol 2017; 39:1010428317697565. [PMID: 28443461 DOI: 10.1177/1010428317697565] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Aberrant expression of microRNAs correlates with the development and progression of human cancers by targeting downstream proteins. MiR-1202 is downregulated in ovarian cancer and clear cell papillary renal cell carcinoma; however, its role in glioma remains unknown. The purpose of this study was to determine the expression and the role of miR-1202 and to elucidate its regulatory mechanism in glioma. We used quantitative real-time polymerase chain reaction to measure miR-1202 expression in both glioma tissues and cell lines. The findings showed that the miR-1202 expression decreased dramatically in clinical glioma tissues and cell lines, and miR-1202 expression was inversely correlated with the expression of Rab1A. Using bioinformatics and luciferase reporter assays, we identified Rab1A as a novel and direct target of miR-1202. In vitro, overexpression of miR-1202 inhibited glioma cell proliferation and induced endoplasmic reticulum stress and apoptosis through targeting Rab1A, whereas suppression of miR-1202 promoted cell proliferation and inhibited endoplasmic reticulum stress and apoptosis. Similarly, silencing Rab1A with small interfering RNA also suppressed glioma cell growth and induced endoplasmic reticulum stress and apoptosis. Taken together, our data indicate that miR-1202 suppresses proliferation and induces endoplasmic reticulum stress and apoptosis through targeting and inhibiting Rab1A in glioma cells. These results suggest miR-1202 as a potential therapeutic target for the treatment of glioma patients.
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Affiliation(s)
- Yu Quan
- 1 Department of Neurosurgery, The Second Affiliated Hospital, Xi'an Jiaotong University, Shaanxi, China
| | - Qian Song
- 2 Department of Neurosurgery, The First Affiliated Hospital, Xi'an Jiaotong University, Shaanxi, China
| | - Jvbo Wang
- 1 Department of Neurosurgery, The Second Affiliated Hospital, Xi'an Jiaotong University, Shaanxi, China
| | - Lingyu Zhao
- 3 Department of Cell Biology and Genetics/Key Laboratory of Environment and Genes Related to Diseases, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Shaanxi, China
| | - Jian Lv
- 1 Department of Neurosurgery, The Second Affiliated Hospital, Xi'an Jiaotong University, Shaanxi, China
| | - Shouping Gong
- 1 Department of Neurosurgery, The Second Affiliated Hospital, Xi'an Jiaotong University, Shaanxi, China
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14
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Pan JY, Zhang F, Sun CC, Li SJ, Li G, Gong FY, Bo T, He J, Hua RX, Hu WD, Yuan ZP, Wang X, He QQ, Li DJ. miR-134: A Human Cancer Suppressor? MOLECULAR THERAPY. NUCLEIC ACIDS 2017; 6:140-149. [PMID: 28325280 PMCID: PMC5363400 DOI: 10.1016/j.omtn.2016.11.003] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/21/2016] [Accepted: 11/21/2016] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs approximately 20-25 nt in length, which play crucial roles through directly binding to corresponding 3' UTR of targeted mRNAs. It has been reported that miRNAs are involved in numerous of diseases, including cancers. Recently, miR-134 has been identified to dysregulate in handles of human cancers, such as lung cancer, glioma, breast cancer, colorectal cancer, and so on. Increasing evidence indicates that miR-134 is essential for human carcinoma and participates in tumor cell proliferation, apoptosis, invasion and metastasis, drug resistance, as well as cancer diagnosis, treatment, and prognosis. Nevertheless, its roles in human cancer are still ambiguous, and its mechanisms are sophisticated as well, referring to a variety of targets and signal pathways, such as STAT5B, KRAS, MAPK/ERK signal pathway, Notch pathway, etc. Herein, we review the crucial roles of miR-134 in scores of human cancers via analyzing latest investigations, which might provide evidence for cancer diagnose, treatment, prognosis, or further investigations.
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Affiliation(s)
- Jing-Yu Pan
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, 430071 Wuhan, Hubei, P. R. China
| | - Feng Zhang
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, 430071 Wuhan, Hubei, P. R. China
| | - Cheng-Cao Sun
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, 430071 Wuhan, Hubei, P. R. China.
| | - Shu-Jun Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, 430071 Wuhan, Hubei, P. R. China; Wuhan Hospital for the Prevention and Treatment of Occupational Diseases, 430015 Wuhan, Hubei, P. R. China
| | - Guang Li
- Department of Oncology, Wuhan Pu-Ai Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430034 Wuhan, Hubei, P. R. China
| | - Feng-Yun Gong
- Department of Infectious Diseases, Wuhan Medical Treatment Center, 430023 Wuhan, Hubei, P. R. China
| | - Tao Bo
- Department of Infectious Diseases, Wuhan Medical Treatment Center, 430023 Wuhan, Hubei, P. R. China
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510623 Guangzhou, Guangdong, P. R. China
| | - Rui-Xi Hua
- Department of Oncology, The First Affiliated Hospital of Sun Yat-sen University, 510080 Guangzhou, Guangdong, P. R. China
| | - Wei-Dong Hu
- Department of Oncology, ZhongNan Hospital of Wuhan University, 430071 Wuhan, Hubei, P. R. China
| | - Zhan-Peng Yuan
- Department of Toxicology, School of Public Health, Wuhan University, 430071 Wuhan, P. R. China
| | - Xin Wang
- Department of Social Science and Public Health, School of Basic Medical Science, Jiujiang University, Jiujiang 332000, China
| | - Qi-Qiang He
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, 430071 Wuhan, Hubei, P. R. China
| | - De-Jia Li
- Department of Occupational and Environmental Health, School of Public Health, Wuhan University, 430071 Wuhan, Hubei, P. R. China.
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15
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Hou W, Song L, Zhao Y, Liu Q, Zhang S. Inhibition of Beclin-1-Mediated Autophagy by MicroRNA-17-5p Enhanced the Radiosensitivity of Glioma Cells. Oncol Res 2017; 25:43-53. [PMID: 28081732 PMCID: PMC7840760 DOI: 10.3727/096504016x14719078133285] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The role of miRNAs in the radiosensitivity of glioma cells and the underlying mechanism is still far from clear. In the present study, we detected six downregulated and seven upregulated miRNAs in the serum after radiotherapy compared with paired serum samples before radiotherapy via miRNA panel PCR. Among these, miR-17-5p was highly reduced (fold change = −4.21). Further, we validated the levels of miR-17-5p in all serum samples with qRT-PCR. In addition, statistical analysis suggested that a reduced miR-17-5P level was positively associated with advanced clinical stage of glioma, incidence of relapse, and tumor differentiation. Moreover, we provided evidence that irradiation markedly activated autophagy and decreased miR-17-5p in the glioma cell line. Further, we demonstrated that irradiation-induced autophagy activation was mediated by beclin-1, and downregulation of beclin-1 via siRNA significantly abolished the irradiation-activated autophagy. Interestingly, we demonstrated that miR-17-5p could directly target beclin-1 via luciferase gene reporter assay. Exotic expression of miRNA-17-5p decreased autophagy activity in vitro. In nude mice, miRNA-17-5p upregulation sensitized the xenograft tumor to irradiation and suppressed irradiation-induced autophagy. Finally, pharmacal inhibition of autophagy markedly enhanced the cytotoxicity of irradiation in RR-U87 cells.
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16
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Differential transcription profiles of long non-coding RNAs in primary human brain microvascular endothelial cells in response to meningitic Escherichia coli. Sci Rep 2016; 6:38903. [PMID: 27958323 PMCID: PMC5153642 DOI: 10.1038/srep38903] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 11/15/2016] [Indexed: 12/29/2022] Open
Abstract
Accumulating studies have indicated the influence of long non-coding RNAs (lncRNAs) on various biological processes as well as disease development and progression. However, the lncRNAs involved in bacterial meningitis and their regulatory effects are largely unknown. By RNA-sequencing, the transcriptional profiles of host lncRNAs in primary human brain microvascular endothelial cells (hBMECs) in response to meningitic Escherichia coli were demonstrated. Here, 25,257 lncRNAs were identified, including 24,645 annotated lncRNAs and 612 newly found ones. A total of 895 lncRNAs exhibited significant differences upon infection, among which 382 were upregulated and 513 were downregulated (≥2-fold, p < 0.05). Via bioinformatic analysis, the features of these lncRNAs, their possible functions, and the potential regulatory relationships between lncRNAs and mRNAs were predicted. Moreover, we compared the transcriptional specificity of these differential lncRNAs among hBMECs, human astrocyte cell U251, and human umbilical vein endothelial cells, and demonstrated the novel regulatory effects of proinflammatory cytokines on these differential lncRNAs. To our knowledge, this is the first time the transcriptional profiles of host lncRNAs involved in E. coli-induced meningitis have been reported, which shall provide novel insight into the regulatory mechanisms behind bacterial meningitis involving lncRNAs, and contribute to better prevention and therapy of CNS infection.
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