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Farc O, Budisan L, Zaharie F, Țăulean R, Vălean D, Talvan E, Neagoe IB, Zănoagă O, Braicu C, Cristea V. Expression and Functional Analysis of Immuno-Micro-RNAs mir-146a and mir-326 in Colorectal Cancer. Curr Issues Mol Biol 2024; 46:7065-7085. [PMID: 39057062 PMCID: PMC11276483 DOI: 10.3390/cimb46070421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 06/27/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024] Open
Abstract
Micro-RNAs (miRNAs) are non-coding RNAs with importance in the development of cancer. They are involved in both tumor development and immune processes in tumors. The present study aims to characterize the behavior of two miRNAs, the proinflammatory miR-326-5p and the anti-inflammatory miR-146a-5p, in colorectal cancer (CRC), to decipher the mechanisms that regulate their expression, and to study potential applications. Tissue levels of miR-326-5p and miR-146a-5p were determined by qrt-PCR (real-time quantitative reverse transcription polymerase chain reaction) in 45 patients with colorectal cancer in tumoral and normal adjacent tissue. Subsequent bioinformatic analysis was performed to characterize the transcriptional networks that control the expression of the two miRNAs. The biomarker potential of miRNAs was assessed. The expression of miR-325-5p and miR-146a-5p was decreased in tumors compared to normal tissue. The two miRNAs are regulated through a transcriptional network, which originates in the inflammatory and proliferative pathways and regulates a set of cellular functions related to immunity, proliferation, and differentiation. The miRNAs coordinate distinct modules in the network. There is good biomarker potential of miR-326 with an AUC (Area under the curve) of 0.827, 0.911 sensitivity (Sn), and 0.689 specificity (Sp), and of the combination miR-326-miR-146a, with an AUC of 0.845, Sn of 0.75, and Sp of 0.89. The miRNAs are downregulated in the tumor tissue. They are regulated by a transcriptional network in which they coordinate distinct modules. The structure of the network highlights possible therapeutic approaches. MiR-326 and the combination of the two miRNAs may serve as biomarkers in CRC.
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Affiliation(s)
- Ovidiu Farc
- Research Center for Functional Genomics, Biomedicine and Translational Medicine “Iuliu Hatieganu” University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania; (O.F.); (I.B.N.); (O.Z.); (C.B.)
| | - Liviuta Budisan
- Research Center for Functional Genomics, Biomedicine and Translational Medicine “Iuliu Hatieganu” University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania; (O.F.); (I.B.N.); (O.Z.); (C.B.)
| | - Florin Zaharie
- Surgical Department, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania; (F.Z.); (R.Ț.); (D.V.)
| | - Roman Țăulean
- Surgical Department, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania; (F.Z.); (R.Ț.); (D.V.)
| | - Dan Vălean
- Surgical Department, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania; (F.Z.); (R.Ț.); (D.V.)
| | - Elena Talvan
- Faculty of Medicine Lucian Blaga, University of Sibiu, 550169 Sibiu, Romania;
| | - Ioana Berindan Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine “Iuliu Hatieganu” University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania; (O.F.); (I.B.N.); (O.Z.); (C.B.)
| | - Oana Zănoagă
- Research Center for Functional Genomics, Biomedicine and Translational Medicine “Iuliu Hatieganu” University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania; (O.F.); (I.B.N.); (O.Z.); (C.B.)
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine “Iuliu Hatieganu” University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania; (O.F.); (I.B.N.); (O.Z.); (C.B.)
| | - Victor Cristea
- Immunology Department, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania;
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Han Z, Mou Z, Jing Y, Jiang R, Sun T. EMX1 functions as a tumor inhibitor in spinal cord glioma through transcriptional suppression of WASF2 and inactivation of the Wnt/β-catenin axis. Brain Behav 2022; 12:e2684. [PMID: 35849030 PMCID: PMC9392518 DOI: 10.1002/brb3.2684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 06/12/2022] [Accepted: 06/14/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Gliomas are the most frequent and aggressive cancers in the central nervous system, and spinal cord glioma (SCG) is a rare class of the gliomas. Empty spiracles homobox genes (EMXs) have shown potential tumor suppressing roles in glioma, but the biological function of EMX1 in SCG is unclear. METHODS The EMX1 expression in clinical tissues of patients with SCG was examined. SCG cells were extracted from the tissues, and altered expression of EMX1 was then introduced to examine the role of EMX1 in cell growth and invasiveness in vitro. Xenograft tumors were induced in nude mice for in vivo validation. The targets of EXM1 were predicted via bioinformatic analysis and validated by luciferase and ChIP-qPCR assays. Rescue experiments were conducted to validate the involvements of the downstream molecules. RESULTS EMX1 was poorly expressed in glioma, which was linked to decreased survival rate of patients according to the bioinformatics prediction. In clinical tissues, EMX1 was poorly expressed in SCG, especially in the high-grade tissues. EMX1 upregulation significantly suppressed growth and metastasis of SCG cells in vitro and in vivo. EMX1 bound to the promoter of WASP family member 2 (WASF2) to suppress its transcription. Restoration of WASF2 blocked the tumor-suppressing effect of EMX1. EMX1 suppressed Wnt/β-catenin signaling activity by inhibiting WASF2. Coronaridine, a Wnt/β-catenin-specific antagonist, blocked SCG cell growth and metastasis induced by WASF2. CONCLUSION This study elucidates that EMX1 functions as a tumor inhibitor in SCG by suppressing WASF2-dependent activation of the Wnt/β-catenin axis.
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Affiliation(s)
- Ziyin Han
- Department of Traumatic Orthopedics, Yantaishan Hospital of Yantai, Yantai, Shandong, P.R. China
| | - Zufang Mou
- Administration Department of Nosocomial Infection, Yantaishan Hospital of Yantai, Yantai, Shandong, P.R. China
| | - Yulong Jing
- Department of Traumatic Orthopedics, Yantaishan Hospital of Yantai, Yantai, Shandong, P.R. China
| | - Rong Jiang
- Department of Physiology, Binzhou Medical University, Yantai Campus, Yantai, Shandong, P.R. China
| | - Tao Sun
- Department of Traumatic Orthopedics, Yantaishan Hospital of Yantai, Yantai, Shandong, P.R. China
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Novel roles of LSECtin in gastric cancer cell adhesion, migration, invasion, and lymphatic metastasis. Cell Death Dis 2022; 13:593. [PMID: 35821222 PMCID: PMC9276708 DOI: 10.1038/s41419-022-05026-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/01/2022] [Accepted: 06/15/2022] [Indexed: 01/21/2023]
Abstract
Liver and lymph node sinusoidal endothelial cell C-type lectin (LSECtin) plays an important regulatory role in a variety of diseases, including tumors. However, the underlying mechanism of LSECtin in gastric cancer (GC) remains largely unknown. In our research, LSECtin promoted the adhesion and invasion of GC cells, and was involved in lymphatic metastasis of GC cells. Mechanistically, LSECtin promoted the adhesion, proliferation and migration of GC cells by downregulating STAT1 expression. The circular RNA circFBXL4, which is regulated by LSECtin, sponges the microRNA miR-146a-5p to regulate STAT1 expression. The promotion of GC cell proliferation, migration and invasion mediated by LSECtin was largely inhibited by circFBXL4 overexpression or miR-146a-5p silencing. Moreover, in its role as a transcription factor, STAT1 modulated the expression of FN1 and CHD4. In conclusion, LSECtin might be involved in the lymphatic metastasis of GC by upregulating the expression of FN1 and CHD4 via the circFBXL4/miR-146a-5p/STAT1 axis, possibly indicating a newly discovered pathogenic mechanism.
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Yang X, Ding Y, Sun L, Shi M, Zhang P, He A, Zhang X, Huang Z, Li R. WASF2 Serves as a Potential Biomarker and Therapeutic Target in Ovarian Cancer: A Pan-Cancer Analysis. Front Oncol 2022; 12:840038. [PMID: 35359421 PMCID: PMC8964075 DOI: 10.3389/fonc.2022.840038] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/14/2022] [Indexed: 01/22/2023] Open
Abstract
Background Wiskott-Aldrich syndrome protein family member 2 (WASF2) has been shown to play an important role in many types of cancer. Therefore, it is worthwhile to further study expression profile of WASF2 in human cancer, which provides new molecular clues about the pathogenesis of ovarian cancer. Methods We used a series of bioinformatics methods to comprehensively analyze the relationship between WASF2 and prognosis, tumor microenvironment (TME), immune infiltration, tumor mutational burden (TMB), microsatellite instability (MSI), and tried to find the potential biological processes of WASF2 in ovarian cancer. Biological behaviors of ovarian cancer cells were investigated through CCK8 assay, scratch test and transwell assay. We also compared WASF2 expression between epithelial ovarian cancer tissues and normal ovarian tissues by using immunohistochemical staining. Results In the present study, we found that WASF2 was abnormally expressed across the diverse cancer and significantly correlated with overall survival (OS) and progression-free interval (PFI). More importantly, the WASF2 expression level also significantly related to the TME. Our results also showed that the expression of WASF2 was closely related to immune infiltration and immune-related genes. In addition, WASF2 expression was associated with TMB, MSI, and antitumor drugs sensitivity across various cancer types. Functional bioinformatics analysis demonstrated that the WASF2 might be involved in several signaling pathways and biological processes of ovarian cancer. A risk factor model was found to be predictive for OS in ovarian cancer based on the expression of WASF2. Moreover, in vitro experiments, it was demonstrated that the proliferative, migratory and invasive capacity of ovarian cancer cells was significantly inhibited due to WASF2 knockdown. Finally, the immunohistochemistry data confirmed that WASF2 were highly expressed in ovarian cancer. Conclusions Our study demonstrated that WASF2 expression was associated with a poor prognosis and may be involved in the development of ovarian cancer, which might be explored as a potential prognostic marker and new targeted treatments.
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Affiliation(s)
- Xiaofeng Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yuzhen Ding
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Lu Sun
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Meiting Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Ping Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Andong He
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiaotan Zhang
- Department of Pathology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Zhengrui Huang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Ruiman Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- *Correspondence: Ruiman Li,
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Shi L, Feng L, Tong Y, Jia J, Li T, Wang J, Jiang Z, Yu M, Xia H, Jin Q, Jiang X, Cheng Y, Ju L, Liu J, Zhang Q, Lou J. Genome wide profiling of miRNAs relevant to the DNA damage response induced by hexavalent chromium exposure (DDR-related miRNAs in response to Cr (VI) exposure). ENVIRONMENT INTERNATIONAL 2021; 157:106782. [PMID: 34329887 DOI: 10.1016/j.envint.2021.106782] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
AIM We aimed to explore the expression of miRNAs and their potential roles in the DNA damage response (DDR) induced by Cr (VI) exposure in human B lymphoblast cells (HMy2.CIR cells) and in a population of Cr (VI)-exposed humans. METHODS Differentially expressed miRNAs were found by a combination of miRNA sequencing and RT-qPCR validation in HMy2.CIR cells treated with K2Cr2O7. Differentially expressed miRNAs related to DDR were selected for functional study. The expression levels of differential miRNAs were also investigated in chromate workers. RESULTS A total of 214 differentially expressed miRNAs were identified by sequencing, and the expression of 5 miRNAs among 25 associated with DDR was found to be consistent between sequencing and validation studies.Functional studies showed that miR-148a-3p, miR-21-5p, and miR-424-3p might be related to Cr (VI)-induced cell apoptosis, and miR-221-3p might participate in Cr (VI)-induced DDR. We also found that the expression of miR-21-5p and miR-424-3p was upregulated in chromate workers. CONCLUSIONS Cr (VI) exposure could significantly impact miRNAs expression in vitro and in chromate workers. Functional studies showed that miR-148a-3p, miR-21-5p and miR-221-3p might take a crucial role in the cellular DDR induced by Cr (VI) exposure.
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Affiliation(s)
- Li Shi
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Lingfang Feng
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Yan Tong
- Affiliated Hangzhou First People's Hospital, Zhejiang University, School of Medicine, Hangzhou, Zhejiang, China
| | - Junlin Jia
- Center for Biostatistics, Bioinformatics and Big Data, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Tao Li
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Jing Wang
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Zhaoqiang Jiang
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Min Yu
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Hailing Xia
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Qi Jin
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Xiyi Jiang
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Yongran Cheng
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Li Ju
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Jiaqi Liu
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China
| | - Quan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Jianlin Lou
- School of Public Health (Institute of Occupational Diseases), Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, Zhejiang, China.
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Bao G, Sun J, Zheng H, Hou J, Huang J, Wei J, Fu Y, Qiu J, Zou X, Xiang B, Cai J. Visualization of microRNA-21 Dynamics in Neuroblastoma Using Magnetic Resonance Imaging Based on a microRNA-21-Responsive Reporter Gene. Front Oncol 2021; 11:747305. [PMID: 34804934 PMCID: PMC8602822 DOI: 10.3389/fonc.2021.747305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/25/2021] [Indexed: 11/13/2022] Open
Abstract
Background MicroRNAs (miRs) have been shown to be closely associated with the occurrence and development of tumors and to have potential as diagnostic and therapeutic targets. The detection of miRs by noninvasive imaging technology is crucial for deeply understanding their biological functions. Our aim was to develop a novel miR-21-responsive gene reporter system for magnetic resonance imaging (MRI) visualization of the miR-21 dynamics in neuroblastoma. Methods The reporter gene ferritin heavy chain (FTH1) was modified by the addition of 3 copies of the sequence completely complementary to miR-21 (3xC_miR-21) to its 3’-untranslated region (3’ UTR) and transduced into SK-N-SH cells to obtain SK-N-SH/FTH1-3xC_miR-21 cells. Then, the antagomiR-21 was delivered into cells by graphene oxide functionalized with polyethylene glycol and dendrimer. Before and after antagomiR-21 delivery, FTH1 expression, MRI contrast and intracellular iron uptake were assayed in vitro and in vivo. Results In the SK-N-SH/FTH1-3xC_miR-21 cells, FTH1 expression was in an “off” state due to the combination of intratumoral miR-21 with the 3’ UTR of the reporter gene. AntagomiR-21 delivered into the cells bound to miR-21 and thereby released it from the 3’ UTR of the reporter gene, thus “switching on” FTH1 expression in a dose-dependent manner. This phenomenon resulted in intracellular iron accumulation and allowed MRI detection in vitro and in vivo. Conclusion MRI based on the miR-21-responsive gene reporter may be a potential method for visualization of the endogenous miR-21 activity in neuroblastoma and its response to gene therapy.
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Affiliation(s)
- Guangcheng Bao
- Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Key Laboratory of Pediatrics in Chongqing, Chongqing, China.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Jun Sun
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Key Laboratory of Pediatrics in Chongqing, Chongqing, China.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China.,Department of Radiology, Chongqing University Central Hospital, Chongqing, China
| | - Helin Zheng
- Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jingxin Hou
- Department of Radiology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jie Huang
- Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Key Laboratory of Pediatrics in Chongqing, Chongqing, China.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Jie Wei
- Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Key Laboratory of Pediatrics in Chongqing, Chongqing, China.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Yuanqiao Fu
- Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Key Laboratory of Pediatrics in Chongqing, Chongqing, China.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Jiawen Qiu
- Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Key Laboratory of Pediatrics in Chongqing, Chongqing, China.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Xuefeng Zou
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang, China
| | - Bin Xiang
- Chemistry and Chemical Engineering, Chongqing University, Chongqing, China
| | - Jinhua Cai
- Department of Radiology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Key Laboratory of Pediatrics in Chongqing, Chongqing, China.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
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Afshar-Khamseh R, Javeri A, Taha MF. MiR-146a suppresses the expression of CXCR4 and alters survival, proliferation and migration rate in colorectal cancer cells. Tissue Cell 2021; 73:101654. [PMID: 34601384 DOI: 10.1016/j.tice.2021.101654] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 12/14/2022]
Abstract
CXCR4 plays an important role in colorectal cancer (CRC) development and metastasis. Some previous studies have indicated CXCR4 as a therapeutic target in cancer. CXCR4 is known as a direct target of miR-146a. The present study aimed to investigate how exogenous induction of miR-146a affects CXCR4 gene and protein expression and also proliferation, apoptosis and migration of CRC cells. Transfection of Caco-2 and SW480 cells by a synthetic miR-146a mimic led to downregulation of CXCR4 expression at both gene and protein levels. It also downregulated expression of several miR-146a targets, including GSK3B, IRAK1, TRAF6, AKT2, SMAD4, EGFR and NFKB1, mostly in SW480 cells. Overexpression of miR-146a resulted in a partial cell cycle arrest in the both cell lines, while the apoptotic rate was also decreased. In regards to epithelial-mesenchymal transition factors, VIM was downregulated in the both cell lines, but SNAI1 was upregulated in Caco-2 cells. The wound closure assay showed a reduction in cell migration in SW480 cells, but an opposite effect was detected in Caco-2 cells following transfection with miR-146a mimic. Therefore, our results are indicating that overexpression of miR-146a, despite downregulation of oncogenic CXCR4, may not lead to a universal tumor suppressive effect in all CRC cells, and this is possibly due to differences in miR-146a effects on signaling pathways in each cell type. Selection of miR-146a for tumor suppression requires enough details regarding the signaling profile of cancer cells otherwise it may produce unexpected outcome.
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Affiliation(s)
- Reyhaneh Afshar-Khamseh
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Box: 14965-161, Tehran, Iran
| | - Arash Javeri
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Box: 14965-161, Tehran, Iran.
| | - Masoumeh Fakhr Taha
- Department of Stem Cells and Regenerative Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Box: 14965-161, Tehran, Iran.
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Expression profiles of miR-196, miR-132, miR-146a, and miR-134 in human colorectal cancer tissues in accordance with their clinical significance : Comparison regarding KRAS mutation. Wien Klin Wochenschr 2021; 133:1162-1170. [PMID: 34463887 DOI: 10.1007/s00508-021-01933-9] [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: 03/08/2021] [Accepted: 07/25/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Colorectal cancer (CRC) is among the most widespread malignancies in the world. MicroRNA (miRNA) has been identified as an important modulator of the biological processes of the cells. This group of noncoding RNAs also has a pivotal function in the growth and development of human cancers, including CRC. Among these miRNAs, miR-196, miR-132, miR-146a, and miR-134 have fundamental impacts on the regulation of cancers. The current study aimed to investigate the involvement of these miRNAs in CRC patients. METHODS In this study, 50 pairs of tumor and tumor margin samples of CRC patients were investigated to assess the expression levels of miR-196, miR-132, miR-146a, and miR-134 in this cancer. For this purpose, firstly, quantitative real-time PCR (qRT-PCR) was applied. Also, KRAS mutation and clinicopathological characteristics of the CRC patients were analyzed in the study groups. RESULTS The findings demonstrated the overexpression of miR-196 (P-value = 0.0045) and miR-146a (P-value = 0.0033) in tumor tissues compared to controls. Conversely, the expression levels of miR-132 (P-value = 0.00032) and miR-134 (P-value < 0.0001) were downregulated in tumor tissues. Also, miR-146a was the only miRNA with significant expression change in the case of the KRAS gene mutation. Interestingly, the expression ratio of these miRNAs was significantly associated with some of the clinicopathological features of the patients, such as lymph node and distant metastases. CONCLUSION Our data demonstrated that these miRNAs appear to be promising novel biomarkers for early diagnosis of CRC and may pave the way for the future establishment of novel therapeutic options for CRC.
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Huang S, Liao Q, Li W, Deng G, Jia M, Fang Q, Ji H, Meng M. The lncRNA PTTG3P promotes the progression of CRPC via upregulating PTTG1. Bull Cancer 2021; 108:359-368. [PMID: 33743960 DOI: 10.1016/j.bulcan.2020.11.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Overexpression of certain long non-coding RNAs (lncRNAs) promotes the progression of castration-resistant prostate cancer (CRPC). The significance and potential role of the lncRNA designated pituitary tumour-transforming 3, pseudogene (PTTG3P) in CRPC is unknown. METHODS We detected PTTG3P expression by qPCR. Upregulated PTTG3P expression was performed to explore the role of PTTG3P in PCa cells resistant to ADT (androgen deprivation therapy). The relationship among PTTG3P, mir-146a-3p and PTTG1 were validated by qPCR, western blot and luciferase assay. RESULTS PTTG3P levels were significantly increased in the androgen-independent PC cell lines, as well as in CRPC tissues compared with those of the androgen-dependent prostate cancer cell line LNCaP and tumour tissues of patients with hormone-naive prostate cancers. Enforced expression of PTTG3P in androgen-deprived LNCaP cells significantly enhanced survival, clonogenicity, and tumorigenicity. Further, PTTG3P acted as a competing endogenous RNA (ceRNA, natural miRNA sponge) to upregulate PTTG1 expression by competing for mir-146a-3p in the progression to CRPC. CONCLUSION Our findings suggest that PTTG3P promotes the resistance of prostate cancer cells to androgen-deprivation therapy via upregulating PTTG1. PTTG3P may therefore represent a potential target for therapy of CRPC.
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MESH Headings
- Adenocarcinoma/genetics
- Adenocarcinoma/pathology
- Androgen Antagonists/therapeutic use
- Anilides/therapeutic use
- Animals
- Antineoplastic Agents, Hormonal/therapeutic use
- Binding, Competitive
- Cell Line, Tumor
- Drug Resistance, Neoplasm
- Heterografts
- Humans
- Male
- Mice, Nude
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Neoplasm Transplantation
- Nitriles/therapeutic use
- Prostatic Neoplasms, Castration-Resistant/genetics
- Prostatic Neoplasms, Castration-Resistant/pathology
- Pseudogenes
- RNA, Long Noncoding/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Neoplasm/genetics
- RNA, Neoplasm/metabolism
- Securin/biosynthesis
- Securin/genetics
- Tosyl Compounds/therapeutic use
- Tumor Stem Cell Assay
- Up-Regulation
- Mice
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Affiliation(s)
- Shengquan Huang
- Chongqing medical university, The third affiliated hospital (General Hospital), Department of urology, 401120 Chongqing, China
| | - Qianjin Liao
- Chongqing north KuanRen hospital, 400000 Chongqing, China
| | - Weibing Li
- Chongqing medical university, The third affiliated hospital (General Hospital), Department of urology, 401120 Chongqing, China
| | - Guoxian Deng
- Chongqing medical university, The third affiliated hospital (General Hospital), Department of urology, 401120 Chongqing, China
| | - Ming Jia
- Chongqing medical university, The third affiliated hospital (General Hospital), Department of urology, 401120 Chongqing, China
| | - Qiang Fang
- Chongqing medical university, The third affiliated hospital (General Hospital), Department of urology, 401120 Chongqing, China
| | - Huixiang Ji
- Chongqing medical university, The third affiliated hospital (General Hospital), Department of urology, 401120 Chongqing, China.
| | - Mingsen Meng
- Chongqing medical university, The third affiliated hospital (General Hospital), Department of urology, 401120 Chongqing, China.
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10
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Wang L, Chen Y, Yan Y, Guo X, Fang Y, Su Y, Wang L, Pathak JL, Ge L. miR-146a Overexpression in Oral Squamous Cell Carcinoma Potentiates Cancer Cell Migration and Invasion Possibly via Targeting HTT. Front Oncol 2020; 10:585976. [PMID: 33282738 DOI: 10.3389/fonc.2020.585976] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/14/2020] [Indexed: 01/04/2023] Open
Abstract
Huntingtin (HTT) is one of the target genes of miR-146-a and regulates various cancer cell activities. This study aims to explore the miR-146a expression pattern in oral squamous cell carcinoma (OSCC) and its role and mechanism in OSCC progression and metastasis via targeting the HTT gene. OSCC tissue and non-cancerous matched tissue (NCMT) were obtained from 14 patients. OSCC cell lines and normal HOK cells were used to analyze migration and invasion assay. OSCC-induced miR-146a knockout mice (B6.Cg-Mir146tm1.1Bal) model was developed. Transwell cell migration/invasion and scratch wound assays were used to investigate the OSCC cell migration and invasion in vitro. Kaplan-Meier survival analysis was used to investigate the association of HTT expression patterns in cancer tissue with patient survival percentage and duration. Pearson's correlation analysis tested the association between miR-146a and HTT expression in OSCC tissues. miR-146a mimic and inhibitor transfection were performed to overexpress and knockdown the miR-146a in OSCC cells, respectively. miR-146a expression was highly upregulated in OSCC tissues and OSCC cell lines. Cancer cell migration/invasion was enhanced in miR-146a overexpressed cells and reduced in mi-R146a knockdowned cells. HTT expression was reduced in OSCC tissues and cell lines compared to NCMT and HOK cells, respectively. HTT expression was downregulated in miR-146a overexpressed OSCC cells and upregulated in miR-146a knockdowned OSCC cells. The expression pattern of miR-146a in OSCC cell lines and tissues was inversely correlated with HTT expression. Prediction of miRNA target analysis showed that HTT possesses the binding sites for miR-146a. HTT overexpression in OSCC tissues was associated with patients' higher survival percentage and duration. HTT knockdown in OSCC cells enhanced miR-146a expression and cell migration/invasion. Inducing OSCC in miR-146a knockout mice increased the HTT expression in tongue tissue and alleviated the cancer aggressiveness and epithelial damage. Overexpressed miR-146a in OSCC targets the HTT gene and enhances cancer cell migration/invasion unraveling the possible role of HTT in miR146a-mediated OSCC cell migration and invasion.
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Affiliation(s)
- Liping Wang
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Yunxin Chen
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Yongyong Yan
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China.,Institute of Oral Disease, Guangzhou Medical University, Guangzhou, China
| | - Xueqi Guo
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Ying Fang
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Yucheng Su
- Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Lijing Wang
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China.,School of Life Science and Biopharmaceutics, Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Janak L Pathak
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China.,Institute of Oral Disease, Guangzhou Medical University, Guangzhou, China
| | - Linhu Ge
- Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China.,Institute of Oral Disease, Guangzhou Medical University, Guangzhou, China
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11
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The influence of genetic variability in IL1B and MIR146A on the risk of pleural plaques and malignant mesothelioma. Radiol Oncol 2020; 54:429-436. [PMID: 33085641 PMCID: PMC7585336 DOI: 10.2478/raon-2020-0057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023] Open
Abstract
Background Asbestos exposure is associated with the development of pleural plaques as well as malignant mesothelioma (MM). Asbestos fibres activate macrophages, leading to the release of inflammatory mediators including interleukin 1 beta (IL-1β). The expression of IL-1β may be influenced by genetic variability of IL1B gene or regulatory microRNAs (miRNAs). This study investigated the effect of polymorphisms in IL1B and MIR146A genes on the risk of developing pleural plaques and MM. Subjects and methods In total, 394 patients with pleural plaques, 277 patients with MM, and 175 healthy control subjects were genotyped for IL1B and MIR146A polymorphisms. Logistic regression was used in statistical analysis. Results We found no association between MIR146A and IL1B genotypes, and the risk of pleural plaques. MIR146A rs2910164 was significantly associated with a decreased risk of MM (OR = 0.31, 95% CI = 0.13–0.73, p = 0.008). Carriers of two polymorphic alleles had a lower risk of developing MM, even after adjustment for gender and age (OR = 0.34, 95% CI = 0.14–0.85, p = 0.020). Among patients with known asbestos exposure, carriers of at least one polymorphic IL1B rs1143623 allele also had a lower risk of MM in multivariable analysis (OR = 0.50, 95% CI = 0.28–0.92, p = 0.025). The interaction between IL1B rs1143623 and IL1B rs1071676 was significantly associated with an increased risk of MM (p = 0.050). Conclusions Our findings suggest that genetic variability of inflammatory mediator IL-1β could contribute to the risk of developing MM, but not pleural plaques.
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12
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Nariman-Saleh-Fam Z, Mansoori Y, Saadatian Z, Tavakkoly-Bazzaz J, Daraei A, Zununi Vahed S, Mahmoodzadeh H, Bastami M. Dysregulated Expression of miR-146a and Its Associated Immune Effectors in Peripheral Blood Mononuclear Cells of Esophageal Carcinoma Patients. Immunol Invest 2020; 51:290-300. [DOI: 10.1080/08820139.2020.1828454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ziba Nariman-Saleh-Fam
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Women’s Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yaser Mansoori
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Zahra Saadatian
- Department of Physiology, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Javad Tavakkoly-Bazzaz
- Medical Genetics Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdolreza Daraei
- Department of Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | | | - Habibollah Mahmoodzadeh
- Cancer Institute, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Milad Bastami
- Women’s Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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13
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Park JH, Jeong GH, Lee KS, Lee KH, Suh JS, Eisenhut M, van der Vliet HJ, Kronbichler A, Stubbs B, Solmi M, Dragioti E, Koyanagi A, Shin JI, Gamerith G. Genetic variations in MicroRNA genes and cancer risk: A field synopsis and meta-analysis. Eur J Clin Invest 2020; 50:e13203. [PMID: 31984489 DOI: 10.1111/eci.13203] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 01/09/2020] [Accepted: 01/22/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Cancer risk has been associated with certain gene variations in microRNA (miRNA), but conflicting evidence warrants re-assessing of significant results in meta-analyses. We summarized published meta-analyses that assess the associations between miRNA polymorphism and cancers to show the validity of the findings. METHOD We searched PubMed and investigated the results of meta-analyses published through November 2018. We re-assessed the results based on false-positive report probability (FPRP) to test the noteworthiness of the associations. RESULTS Sixty-eight miRNA polymorphisms in 45 meta-analyses associated with cancer were included. Four (7.4%) and sixteen (25.0%) single nucleotide polymorphisms (SNPs) were noteworthy (FPRP < 0.2) at a prior probability of 0.001 for interesting candidate genes and a statistical power to detect an odds ratio (OR) of 1.1 and 1.5, respectively. The four miRNA SNPs noteworthy at an OR of 1.1 were as follows: miR-146a/rs2910164 Cvs.G; miR-27a/rs895819 Cvs.T; miR-423/rs6505162 Cvs.A; and miR-605/rs2043556 Cvs.T. The 16 SNPs noteworthy at an OR of 1.5 include the four genotype comparisons at an OR of 1.1, and the additional 12 genotype comparisons were as follows: miR-196a2/rs11614913 Tvs.C; miR-27a/rs895819 GGvs.AA + AG; miR-196a2/rs11614913 C vs.T; miR-146a/rs2910164 Gvs.C; miR-196a2/rs11614913 Tvs.C; miR-146a/rs2910164 Cvs.G; miR-499/rs3746444 homozygous model; miR-146a/rs2910164 CCvs.GG + GC; miR-499/rs3746444 TCvs.TT; miR-499/rs3746444 GAvs.AA; miR-146a/rs2910164 CCvs.GG; and miR-499/rs3746444 Gvs.A. No association was noteworthy at a prior probability of 0.000001. CONCLUSION Out of 68 published associations of miRNA polymorphisms with cancer, sixteen have shown noteworthiness in our re-assessing meta-analysis. Our findings summarize the results of meta-analyses on the association of cancer with SNPs and underline the importance of interpreting results with caution.
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Affiliation(s)
- Jae Hyon Park
- Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Gwang Hun Jeong
- College of Medicine, Gyeongsang National University, Jinju, Korea
| | - Kwang Seob Lee
- Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Keum Hwa Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.,Division of Pediatric Nephrology, Severance Children's Hospital, Seoul, Korea.,Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Korea
| | - Jin-Soon Suh
- Department of Pediatrics, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Michael Eisenhut
- Luton & Dunstable University Hospital NHS Foundation Trust, Luton, UK
| | - Hans J van der Vliet
- Department of Medical Oncology, Amsterdam UMC, Cancer Center Amsterdam, VU University, Amsterdam, The Netherlands
| | - Andreas Kronbichler
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University of Innsbruck, Innsbruck, Austria
| | - Brendon Stubbs
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.,South London and Maudsley NHS Foundation Trust, London, UK.,Faculty of Health, Social Care and Education, Anglia Ruskin University, Chelmsford, UK
| | - Marco Solmi
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Elena Dragioti
- Pain and Rehabilitation Centre, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Ai Koyanagi
- Parc Sanitari Sant Joan de Déu/CIBERSAM, Universitat de Barcelona, Fundació Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain.,ICREA, Pg. Lluis Companys 23, Barcelona, Spain
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.,Division of Pediatric Nephrology, Severance Children's Hospital, Seoul, Korea.,Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, Korea
| | - Gabriele Gamerith
- Department of Internal Medicine V (Hematology and Oncology), Medical University of Innsbruck, Innsbruck, Austria.,Tyrolean Cancer Research Institute, Innsbruck, Austria
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14
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Sadegh Shesh Poli M, Khajeniazi S, Behnampour N, Kalani MR, Moradi A, Marjani A. MicroRNA-146a as a Prognostic Biomarker for Esophageal Squamous Cell Carcinoma. Cancer Manag Res 2020; 12:973-980. [PMID: 32104079 PMCID: PMC7023856 DOI: 10.2147/cmar.s229397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 01/22/2020] [Indexed: 12/13/2022] Open
Abstract
Background and Aims MicroRNAs including miR146a have a regulatory role on the expression of genes and act with binding to 3'-UTR region of the genes. Cyclooxygenase-2 (COX-2) is involved in carcinogenesis as an inflammatory marker, and microRNA-146a (miR-146a) as a negative regulatory factor. We aimed to evaluate miR146a expression as a prognostic or diagnostic biomarker for esophageal squamous cell carcinoma (ESCC) and also an association between miR146a and COX2 expression. Materials and Methods We quantified the level of miR-146a and COX-2 expression in cancerous and adjacent normal tissue samples obtained from 34 patients with ESCC, using real-time-PCR. Statistical analyses were conducted using one-sample t-test. Receiver-operating characteristic (ROC) curve and Kaplan-Meier analysis were applied to assay miR146a as a diagnostic and prognostic marker, respectively, during 4 years of the study. Furthermore, the Cox regression model was performed to assay the hazard ratio (HR). The association between miR-146a and COX2 expression level in ESCC patients was evaluated by nonparametric Spearman's rho analysis. Results The results revealed a reduction of miR-146a expression in 50% of cancerous tissue when compared with adjacent normal regions (P-value=0.127). COX-2 expression in 80% of ESCC patients was higher than in the controls (P-value=0.001). Overall, in 60% of cases, direct association was seen between microRNA-146a and COX-2 expression level (correlation coefficient= 0.438, P-value=0.011). COX2 can be considered as a diagnostic biomarker (AUC=0.834, sensitivity=72%, specificity =83%, P-value<0.0001) but miR146a cannot be considered as a diagnostic biomarker (AUC=0.553, sensitivity=88%, specificity =28%, P-value=0.453). Survival analysis by Kaplan-Meier method showed miR146a and COX2 expression can be probably considered as prognostic biomarkers for ESCC because patients with high expression of miR146a had 7 months shorter life span and patients with low expression of COX2 had 8 months shorter life span. Conclusion COX2 expression is a diagnostic biomarker. MiR-146a and COX2 expression can probably be considered as prognostic biomarkers for survival in ESCC.
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Affiliation(s)
| | - Safoura Khajeniazi
- Medical Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Nasser Behnampour
- Health Management and Social Development Research Center, Gorgan, Iran
| | - Mohammad Reza Kalani
- Molecular Medicine Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abdolvahab Moradi
- Gastroenterology and Hepatology Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abdoljalal Marjani
- Abdoljalal Marjani Metabolic Disorders Research Center, Department of Biochemistry and Biophysics, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
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15
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Zhang T, Ma Y, Gao L, Mao C, Zeng H, Wang X, Sun Y, Gu J, Wang Y, Chen K, Han Z, Fan Y, Gu J, Zhang J, Wang C. MicroRNA-146a protects against myocardial ischaemia reperfusion injury by targeting Med1. Cell Mol Biol Lett 2019; 24:62. [PMID: 31798643 PMCID: PMC6882197 DOI: 10.1186/s11658-019-0186-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 11/05/2019] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Myocardial ischaemia reperfusion injury (MIRI) is a difficult problem in clinical practice, and it may involve various microRNAs. This study investigated the role that endogenous microRNA-146a plays in myocardial ischaemia reperfusion and explored the possible target genes. METHODS MIRI models were established in microRNA-146a deficient (KO) and wild type (WT) mice. MicroRNA-146a expression was evaluated in the myocardium of WT mice after reperfusion. The heart function, area of myocardium infarction and in situ apoptosis were compared between the KO and WT mice. Microarray was used to explore possible target genes of microRNA-146a, while qRT-PCR and dual luciferase reporter assays were used for verification. Western blotting was performed to detect the expression levels of the target gene and related signalling molecules. A rescue study was used for further testing. RESULTS MicroRNA-146a was upregulated 1 h after reperfusion. MicroRNA-146a deficiency decreased heart function and increased myocardial infarction and apoptosis. Microarray detected 19 apoptosis genes upregulated in the KO mice compared with the WT mice. qRT-PCR and dual luciferase verified that Med1 was one target gene of microRNA-146a. TRAP220, encoded by Med1 in the KO mice, was upregulated, accompanied by an amplified ratio of Bax/Bcl2 and increased cleaved caspase-3. Inhibition of microRNA-146a in H9C2 cells caused increased TRAP220 expression and more apoptosis under the stimulus of hypoxia and re-oxygenation, while knockdown of the increased TRAP220 expression led to decreased cell apoptosis. CONCLUSIONS MicroRNA-146a exerts a protective effect against MIRI, which might be partially mediated by the target gene Med1 and related to the apoptosis signalling pathway.
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Affiliation(s)
- Tiantian Zhang
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Yiwen Ma
- Department of Anaesthesiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Lin Gao
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Chengyu Mao
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Huasu Zeng
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Xiaofei Wang
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Yapin Sun
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Jianmin Gu
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127 China
| | - Yue Wang
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Kan Chen
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Zhihua Han
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Yuqi Fan
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Jun Gu
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Junfeng Zhang
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Changqian Wang
- Department of Cardiology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
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16
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Wu H, Fan H, Liu XX. Biological role of microRNA-146a. Shijie Huaren Xiaohua Zazhi 2019; 27:1155-1160. [DOI: 10.11569/wcjd.v27.i18.1155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs are endogenous single-stranded non-coding small RNAs that specifically bind to target mRNAs to degrade mRNAs or hinder their translation to regulate the expression of target mRNAs at the post-transcriptional level. MicroRNA-146a is involved in a bulk of biological processes and has a variety of biological functions. This article will review several aspects of the role of microRNA-146a, including controlling inflammation, regulating immunity, mediating myeloid cell proliferation, and involvement in tumor occurrence and development.
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Affiliation(s)
- Hui Wu
- Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Xing-Xing Liu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
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17
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Dong Z, Yu C, Rezhiya K, Gulijiahan A, Wang X. Downregulation of miR-146a promotes tumorigenesis of cervical cancer stem cells via VEGF/CDC42/PAK1 signaling pathway. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:3711-3719. [PMID: 31522559 DOI: 10.1080/21691401.2019.1664560] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Zhihong Dong
- Gynecology Department, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, China
| | - Chunxia Yu
- Gynecology Department, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, China
| | - Kuerban Rezhiya
- Gynecology Department, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, China
| | - Aier Gulijiahan
- Gynecology Department, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, China
| | - Xinling Wang
- Gynecology Department, Xinjiang Medical University Affiliated Tumor Hospital, Urumqi, China
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18
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Liu Q, Wang W, Li F, Yu D, Xu C, Hu H. Triptolide Inhibits Breast Cancer Cell Metastasis Through Inducing the Expression of miR-146a, a Negative Regulator of Rho GTPase. Oncol Res 2019; 27:1043-1050. [PMID: 31072418 PMCID: PMC7848294 DOI: 10.3727/096504019x15560124931900] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Triptolide, an extract of Tripterygium wilfordii, has been shown to have a potent anticancer activity. In the present study, it was found that triptolide could effectively induce apoptosis and inhibit proliferation and invasion in malignant MDA-MB-231 breast cancer cells. The study focused on its effect on inhibiting invasion, which has not been extensively reported to date. We predicted that triptolide may change invasion activity via microRNAs (miRNAs), which have been recognized as important regulators of gene expression. miRNAome variation in MDA-MB-231 cells with or without triptolide treatment demonstrated that miR-146a was upregulated following treatment with triptolide. Our previous studies have shown that miR-146a can inhibit migration and invasion by targeting RhoA in breast cancer. This time, we found that miR-146a can target Rac1, another key member of the Rho GTPase family. Luciferase reporter containing Rac1 3′-UTR was constructed to prove this hypothesis. In addition, following treatment with triptolide, the expression of RhoA and Rac1 was found to be decreased. These results indicated that triptolide exerts its anti-invasion activity through a miRNA-mediated mechanism, which indirectly regulates the expression of Rho GTPase. Triptolide combined with miR-146a could improve the effect of triptolide treatment on breast cancer.
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Affiliation(s)
- Qin Liu
- Department of Blood Transfusion, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Wei Wang
- Department of Clinic Laboratory, Tongde Hospital of Zhejiang Province, Hangzhou, P.R. China
| | - Fangqiong Li
- Department of Clinic Laboratory, Tongde Hospital of Zhejiang Province, Hangzhou, P.R. China
| | - Dongyang Yu
- Department of Clinic Laboratory, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Chunfen Xu
- Department of Blood Transfusion, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Hongbing Hu
- Department of Blood Transfusion, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
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19
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Iacona JR, Lutz CS. miR-146a-5p: Expression, regulation, and functions in cancer. WILEY INTERDISCIPLINARY REVIEWS-RNA 2019; 10:e1533. [PMID: 30895717 DOI: 10.1002/wrna.1533] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 12/14/2022]
Abstract
Cancer as we know it is actually an umbrella term for over 100 very unique malignancies in various tissues throughout the human body. Each type, and even subtype of cancer, has different genetic, epigenetic, and other cellular events responsible for malignant development and metastasis. Recent work has indicated that microRNAs (miRNAs) play a major role in these processes, sometimes by promoting cancer growth and other times by suppressing tumorigenesis. miRNAs are small, noncoding RNAs that negatively regulate expression of specific target genes. This review goes into an in-depth look at the most recent finding regarding the significance of one particular miRNA, miR-146a-5p, and its involvement in cancer. Target gene validation and pathway analysis have provided mechanistic insight into this miRNA's purpose in assorted tissues. Additionally, this review outlines novel findings that suggest miR-146a-5p may be useful as a noninvasive biomarker and as a targeted therapeutic in several cancers. This article is categorized under: RNA in Disease and Development > RNA in Disease Regulatory RNAs/RNAi/Riboswitches > Regulatory RNAs.
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Affiliation(s)
- Joseph R Iacona
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School and the School of Graduate Studies, Health Sciences Campus - Newark, Newark, New Jersey
| | - Carol S Lutz
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School and the School of Graduate Studies, Health Sciences Campus - Newark, Newark, New Jersey
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20
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Increased expression of long non-coding RNA SNHG16 correlates with tumor progression and poor prognosis in non-small cell lung cancer. Int J Biol Macromol 2019; 121:270-278. [DOI: 10.1016/j.ijbiomac.2018.10.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 08/12/2018] [Accepted: 10/01/2018] [Indexed: 02/06/2023]
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21
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Shomali N, Shirafkan N, Duijf PHG, Ghasabi M, Babaloo Z, Yousefi M, Mansoori B, Asadi M, Shanehbandi D, Baghbani E, Mohammadi A, Baradaran B. Downregulation of miR-146a promotes cell migration in Helicobacter pylori-negative gastric cancer. J Cell Biochem 2018; 120:9495-9505. [PMID: 30537266 DOI: 10.1002/jcb.28225] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 11/15/2018] [Indexed: 12/13/2022]
Abstract
microRNAs (miRs) are short noncoding RNAs that post-transcriptionally suppress gene expression. miR-146a acts as an oncogene or a tumor suppressor in various cancers, including gastric cancer, but it is unclear what determines whether miR-146a is oncogenic or tumor suppressive and the molecular mechanisms are still largely unknown. The aim of this study was to investigate the role of miR-146a in gastric cancer, by focusing on its expression in patients who were negative for Helicobacter pylori and its reduced and increased expression effect in vitro. Twenty gastric cancer patients who were negative for H. pylori infection were selected and the expression levels of miRNA-146a in these gastric tumors, in their matched normal gastric tissues and in gastric cancer cell lines with varying tumorigenic potential was measured. Further, the impact of increased and decreased miR-146a expression levels on the expression of predicted target genes, cell migration, viability, proliferation, and apoptosis was examined, respectively. Our results for the first time indicated that miR-146a is downregulated in H. pylori-negative gastric cancers and suggests that H. pylori infection determines whether miR-146a acts as an oncogene or tumor suppressor. The level of miR-146a expression inversely correlates with the tumorigenicity of three gastric cancer cell lines and low miR-146a expression predicts poor recurrence-free survival. It was also found that miR-146a reduces the expression levels of the prometastatic genes and suppresses MKN-45 cell migration. Functional studies showed that miR-146a acts as a tumor suppressor miR and identifies miR-146a as a candidate for antimetastatic miRNA replacement therapy for gastric cancer patients.
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Affiliation(s)
- Navid Shomali
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naghmeh Shirafkan
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Pascal H G Duijf
- Translational Research Institute, University of Queensland Diamantina Institute, The University of Queensland, Brisbane, Australia
| | - Mehri Ghasabi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zohreh Babaloo
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Asadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Dariush Shanehbandi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Baghbani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Mohammadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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22
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Comprehensive assessment for miRNA polymorphisms in hepatocellular cancer risk: a systematic review and meta-analysis. Biosci Rep 2018; 38:BSR20180712. [PMID: 29976775 PMCID: PMC6153371 DOI: 10.1042/bsr20180712] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/23/2018] [Accepted: 07/04/2018] [Indexed: 02/07/2023] Open
Abstract
MiRNA polymorphisms had potential to be biomarkers for hepatocellular cancer (HCC) susceptibility. Recently, miRNA single nucleotide polymorphisms (SNPs) were reported to be associated with HCC risk, but the results were inconsistent. We performed a systematic review with a meta-analysis for the association of miRNA SNPs with HCC risk. Thirty-seven studies were included with a total of 11821 HCC patients and 15359 controls in this meta-analysis. We found hsa-mir-146a rs2910164 was associated with a decreased HCC risk in the recessive model (P=0.017, OR = 0.90, 95% confidence interval (CI) = 0.83–0.98). While hsa-mir-34b/c rs4938723 was related with an increased HCC risk in the co-dominant model (P=0.016, odds ratio (OR) = 1.19, 95%CI = 1.03–1.37). When analyzing the Hepatitis B virus (HBV)-related HCC risk, hsa-mir-196a-2 rs11614913 was associated with a decreased HBV-related HCC risk in the co-dominant and allelic models. And hsa-mir-149 rs2292832 was found to be associated with a decreased HBV-related HCC risk in the dominant and recessive models. In conclusion, hsa-mir-146a rs2910164 and hsa-mir-34b/c rs4938723 could be biomarkers for the HCC risk while hsa-mir-196a-2 rs11614913 and hsa-mir-149 rs2292832 had potential to be biomarkers for HBV-related HCC risk.
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23
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Cortés-Márquez AC, Mendoza-Elizalde S, Arenas-Huertero F, Trillo-Tinoco J, Valencia-Mayoral P, Consuelo-Sánchez A, Zarate-Franco J, Dionicio-Avendaño AR, Herrera-Esquivel JDJ, Recinos-Carrera EG, Colín-Valverde C, Rivera-Gutiérrez S, Reyes-López A, Vigueras-Galindo JC, Velázquez-Guadarrama N. Differential expression of miRNA-146a and miRNA-155 in gastritis induced by Helicobacter pylori infection in paediatric patients, adults, and an animal model. BMC Infect Dis 2018; 18:463. [PMID: 30219037 PMCID: PMC6139157 DOI: 10.1186/s12879-018-3368-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 08/30/2018] [Indexed: 01/03/2023] Open
Abstract
Background Helicobacter pylori is a major aetiologic agent associated with gastritis. H. pylori infections increase the expression of the Toll-like receptor (TLR), which in turn modulates the expression of microRNA (miRNA)-146a and miRNA-155. The objective of this study was to compare the expression of miRNA-146a and miRNA-155 in gastric lesions of paediatric and adult patients with different pathologies and in Mongolian gerbils (Meriones unguiculatus) infected with H. pylori 26,695. Methods Quantification of miRNA expression was performed by quantitative real-time polymerase chain reaction (qRT-PCR) of paraffin-embedded gastric lesions of children with or without an infection (n = 25), adults with follicular gastritis and metaplasia (n = 32) and eight-week-old M. unguiculatus males (Hsd:MON) infected with H. pylori 26,695 for 0, 3, 6, 12 and 18 months (n = 25). The genes RNU48 and RNU6 were used as endogenous controls for data normalization. Statistical analyses were performed using Kruskal-Wallis, Mann-Whitney, ANOVA and Student’s t-test. Results The expression of miRNA-146a and miRNA-155 in infected children increased by 247.6- and 79.4-fold (on average), respectively, compared to that observed in the control group. However, these results were not significant (p = 0.12 and p = 0.07 respectively). In some children a gradual increase in expression was observed, while in others, expression was very high. Additionally, the expression levels of miRNA-146a and miRNA-155 increased by an average of 21.7- and 62-fold, respectively, in adult patients with follicular gastritis when compared to those of the controls. In M. unguiculatus infected with H. pylori 26,695, the expression of both miRNAs increased as the infection progressed. Conclusion This is the first report to show differences in the expression of miRNA-146a and miRNA-155 in paediatric and adult patients with gastritis who were infected with H. pylori. In addition, in M. unguiculatus infected with H. pylori, miRNA expression was associated with the progression of infection and the ability of the bacteria to adapt to the host. Electronic supplementary material The online version of this article (10.1186/s12879-018-3368-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ana Caren Cortés-Márquez
- Infectology Laboratory, Hospital Infantil de México Federico Gómez, México City, Mexico.,Biomedicine and Molecular Biotechnology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, Mexico.,Molecular Microbiology Laboratory, Microbiology Department, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, Mexico
| | | | - Francisco Arenas-Huertero
- Laboratory of Research in Experimental Pathology, Hospital Infantil de México Federico Gómez, México City, Mexico
| | | | | | - Alejandra Consuelo-Sánchez
- Gastroenterology and Nutrition Department, Hospital Infantil de México Federico Gómez, México City, Mexico
| | - Jonathan Zarate-Franco
- Health Science, Escuela Superior de Medicina, Instituto Politécnico Nacional, México City, Mexico
| | | | | | | | | | - Sandra Rivera-Gutiérrez
- Molecular Microbiology Laboratory, Microbiology Department, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, Mexico
| | - Alfonso Reyes-López
- Center of Economic and Social Studies in Health, Hospital Infantil de México Federico Gómez, México City, Mexico
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24
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Chen H, Dai G, Cai Y, Gong Q, Wu W, Gao M, Fei Z. Vasodilator-stimulated phosphoprotein (VASP), a novel target of miR-4455, promotes gastric cancer cell proliferation, migration, and invasion, through activating the PI3K/AKT signaling pathway. Cancer Cell Int 2018; 18:97. [PMID: 30002604 PMCID: PMC6038240 DOI: 10.1186/s12935-018-0573-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 05/25/2018] [Indexed: 02/03/2023] Open
Abstract
Background MicroRNAs (miRNAs) are small non-coding RNAs which play important roles in the carcinogenesis of gastric cancer (GC). Expression profiling of miRNAs in paired gastric cancer and adjacent normal gastric tissues has demonstrated that miR-4455 is down-regulated in gastric cancer tissues, but its functional role in the carcinogenesis of GC had not previously been investigated. Aims The purpose of this study was to investigate the functional and biological mechanisms of miR-4455 in the progression of GC, in vitro. Methods Expression of miR-4455 was compared in human GC tissue samples and paired adjacent normal tissue samples. The in vitro effects of miR-4455 expression in MGC-803 cells on their proliferation, invasion, and migration were assessed by MTT assays and 5-bromo-2′-deoxyuridine staining, matrigel-invasion analysis and wound healing assays. Bioinformatics analysis (using PicTar, target scan and miRBase target) was used to identify potential targets for miR-4455, and the luciferase reporter assay, qRT-PCR and Western-blotting analyses were used to confirm VASP as the target of miR-4455. In addition, the effects of downregulation of VASP on the activation of PI3K/AKT signaling pathway were measured using Western-blot analysis. Results The expression of miR-4455 was markedly down-regulated in gastric cancer tissues vs. adjacent normal tissues, and miR-4455 expression inhibited the proliferation, invasion and migration of MGC-803 GC cells in vitro. Luciferase reporter assays revealed that miR-4455 inhibited VASP expression by targeting the 3′-UTR sequence of VASP. Furthermore, silencing of VASP markedly inhibited the activation of the PI3K/AKT signaling pathway. Conclusion Our results suggest that miR-4455 functions as a tumor suppressor in gastric cancer, by targeting VASP leading to activation of the PI3K/AKT signaling pathway and the inhibition of VASP mediated proliferation, migration and invasion of gastric cancer cells. Electronic supplementary material The online version of this article (10.1186/s12935-018-0573-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Haiqun Chen
- 1Department of General Surgery, The ChongMing Branch of XinHua Hospital, The Affiliated Hospital of Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Gang Dai
- 1Department of General Surgery, The ChongMing Branch of XinHua Hospital, The Affiliated Hospital of Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Yiting Cai
- 1Department of General Surgery, The ChongMing Branch of XinHua Hospital, The Affiliated Hospital of Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Qinhao Gong
- 1Department of General Surgery, The ChongMing Branch of XinHua Hospital, The Affiliated Hospital of Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Wei Wu
- 1Department of General Surgery, The ChongMing Branch of XinHua Hospital, The Affiliated Hospital of Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Min Gao
- 1Department of General Surgery, The ChongMing Branch of XinHua Hospital, The Affiliated Hospital of Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Zhewei Fei
- 2Department of General Surgery, XinHua Hospital, The Affiliated Hospital of Shanghai Jiao Tong University, No. 1665, Kong Jiang Road, Shanghai, 200240 China
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25
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Optimizing miRNA-module diagnostic biomarkers of gastric carcinoma via integrated network analysis. PLoS One 2018; 13:e0198445. [PMID: 29879180 PMCID: PMC5991748 DOI: 10.1371/journal.pone.0198445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/18/2018] [Indexed: 12/17/2022] Open
Abstract
Several microRNAs (miRNAs) have been suggested as novel biomarkers for diagnosing gastric cancer (GC) at an early stage, but the single-marker strategy may ignore the co-regulatory relationships and lead to low diagnostic specificity. Thus, multi-target modular diagnostic biomarkers are urgently needed. In this study, a Zsummary and NetSVM-based method was used to identify GC-related hub miRNAs and activated modules from clinical miRNA co-expression networks. The NetSVM-based sub-network consisting of the top 20 hub miRNAs reached a high sensitivity and specificity of 0.94 and 0.82. The Zsummary algorithm identified an activated module (miR-486, miR-451, miR-185, and miR-600) which might serve as diagnostic biomarker of GC. Three members of this module were previously suggested as biomarkers of GC and its 24 target genes were significantly enriched in pathways directly related to cancer. The weighted diagnostic ROC AUC of this module was 0.838, and an optimized module unit (miR-451 and miR-185) obtained a higher value of 0.904, both of which were higher than that of individual miRNAs. These hub miRNAs and module have the potential to become robust biomarkers for early diagnosis of GC with further validations. Moreover, such modular analysis may offer valuable insights into multi-target approaches to cancer diagnosis and treatment.
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26
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Li SH, Li JP, Chen L, Liu JL. miR-146a induces apoptosis in neuroblastoma cells by targeting BCL11A. Med Hypotheses 2018; 117:21-27. [PMID: 30077189 DOI: 10.1016/j.mehy.2018.05.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/13/2018] [Accepted: 05/25/2018] [Indexed: 12/27/2022]
Abstract
Aberrant expression of miR-146a has been reported to be involved in the progression and metastasis of various types of human cancers; however, its potential role in human neuroblastoma is still poorly understood. The purpose of our study was to investigate the molecular mechanism and possible role of miR-146a in human neuroblastoma. In this study, targeted genes were predicted by bioinformatic analysis and confirmed by dual-Luciferase reporter assay. The expression level of miR-146a in the human neuroblastoma SK-N-SH cell line was detected by quantitative RT-PCR. We used flow cytometric analysis to determine apoptosis and necrosis of SK-N-SH cells after transfection with miR-146a inhibitor, miR-146a mimic, and negative controls. The expression level of target genes was detected by RT-PCR and Western blotting. We identified BCL11A as a target of miR-146a. Thus, miR-146a targets the 3'UTR of BCL11A and inhibits its mRNA and protein expression. Overexpression of miR-146a can inhibit the growth and promote the apoptosis of human neuroblastoma SK-N-SH cells through inhibiting the expression of BCL11A. Furthermore, we found that upregulation of BCL11A by miR-146a inhibitor can promote SK-N-SH cells growth and protect SK-N-SH cells against apoptosis. Our results showed that miR-146a is a potential tumor suppressor gene in human neuroblastoma via directly targeting BCL11A. These findings suggest that miR-146a might be a new candidate target for treatment of human neuroblastoma.
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Affiliation(s)
- Sheng-Hua Li
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University in Nanning, China
| | - Jin-Pin Li
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University in Nanning, China
| | - Lan Chen
- Department of Internal Medicine, The Second Affiliated Hospital of Guangxi Medical University in Nanning, China
| | - Jing-Li Liu
- Department of Neurology, The First Affiliated Hospital of Guangxi Medical University in Nanning, China.
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27
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Tumor suppressor miR-1 inhibits tumor growth and metastasis by simultaneously targeting multiple genes. Oncotarget 2018; 8:42043-42060. [PMID: 28159933 PMCID: PMC5522048 DOI: 10.18632/oncotarget.14927] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 12/29/2016] [Indexed: 12/19/2022] Open
Abstract
Cancer progression depends on tumor growth and metastasis, which are activated or suppressed by multiple genes. An individual microRNA may target multiple genes, suggesting that a miRNA may suppress tumor growth and metastasis via simultaneously targeting different genes. However, thus far, this issue has not been explored. In the present study, the findings showed that miR-1 could simultaneously inhibit tumor growth and metastasis of gastric and breast cancers by targeting multiple genes. The results indicated that miR-1 was significantly downregulated in cancer tissues compared with normal tissues. The miR-1 overexpression led to cell cycle arrest in the G1 phase in gastric and breast cancer cells but not in normal cells. Furthermore, the miR-1 overexpression significantly inhibited the metastasis of gastric and breast cancer cells. An analysis of the underlying mechanism revealed that the simultaneous inhibition of tumor growth and metastasis mediated by miR-1 was due to the synchronous targeting of 6 miR-1 target genes encoding cyclin dependent kinase 4, twinfilin actin binding protein 1, calponin 3, coronin 1C, WAS protein family member 2 and thymosin beta 4, X-linked. In vivo assays demonstrated that miR-1 efficiently inhibited tumor growth and metastasis of gastric and breast cancers in nude mice. Therefore, our study contributed novel insights into the miR-1′s roles in tumorigenesis of gastric and breast cancers.
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28
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Xiang W, Wu X, Huang C, Wang M, Zhao X, Luo G, Li Y, Jiang G, Xiao X, Zeng F. PTTG1 regulated by miR-146a-3p promotes bladder cancer migration, invasion, metastasis and growth. Oncotarget 2018; 8:664-678. [PMID: 27893422 PMCID: PMC5352187 DOI: 10.18632/oncotarget.13507] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 11/11/2016] [Indexed: 11/26/2022] Open
Abstract
Pituitary tumor-transforming gene 1 (PTTG1) is identified as an oncogene, and overexpresses in many tumors. However, the role of PTTG1 in bladder cancer (BC) hasn't yet been characterized well. In this study, we showed the expression of PTTG1 mRNA and protein were both significantly increased in BC tissues and cells. The PTTG1 protein levels were positive correlated with increased tumor size, tumor–node–metastasis (TNM) stage, lymphatic invasion and distant metastasis of BC. PTTG1 knockdown dramatically suppressed the migration, invasion, metastasis and growth, and induced senescence and cell-cycle arrest at G0/G1 phase of BC cells. We further identified PTTG1 was the direct target of miR-146a-3p through using target prediction algorithms and luciferase reporter assay. miR-146a-3p was low expressed and negatively correlated with PTTG1 levels in BC tissues and cells. miR-146a-3p overexpression inhibited migration, invasion, metastasis and growth, and induced senescence of BC cells. Rescue experiment suggested ectopic expression of miR-146a-3p and PTTG1 suppressed migration, invasion and induced cell cycle arrest and senescence of BC cells compared to PTTG1 overexpression, confirming miR-146a-3p inhibited BC progression by targeting PTTG1. In summary, our study found miR-146a-3p/PTTG1 axis regulated BC migration, invasion, metastasis and growth, and might be a targets for BC therapy.
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Affiliation(s)
- Wei Xiang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China.,Department of Urology, Wuhan No.1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Xinchao Wu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Chao Huang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Miao Wang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Xian Zhao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Gang Luo
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Yawei Li
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Guosong Jiang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Xingyuan Xiao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
| | - Fuqing Zeng
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, PR China
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29
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Li YL, Wang J, Zhang CY, Shen YQ, Wang HM, Ding L, Gu YC, Lou JT, Zhao XT, Ma ZL, Jin YX. MiR-146a-5p inhibits cell proliferation and cell cycle progression in NSCLC cell lines by targeting CCND1 and CCND2. Oncotarget 2018; 7:59287-59298. [PMID: 27494902 PMCID: PMC5312312 DOI: 10.18632/oncotarget.11040] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 06/03/2016] [Indexed: 12/14/2022] Open
Abstract
Previous studies have indicated that miR-146a-5p acts as an oncogene in several types of cancer, yet a tumor suppressor gene in others. In non-small cell lung cancer (NSCLC), one report showed that it was downregulated and played the role of tumor suppressor. However, another study showed that miR-146a-5p was overexpressed in the serum of NSCLC patients compared to healthy controls. Therefore, it is obvious that further study of the function of miR-146a-5p in NSCLC is necessary to fully understand its importance. Herein, we have verified that miR- 146a- 5p acts as a tumor suppressor in NSCLC. Our data revealed that the expression level of miR-146a-5p was significantly decreased in several human NSCLC cell lines, and also less abundant in human NSCLC tissues, when compared with controls. Moreover, we observed that miR-146a-5p could suppress cell proliferation, both in vitro and in vivo. Our results also showed that miR-146a-5p directly targeted the 3′-UTR of CCND1 and CCND2 mRNAs as well as decreased their expression at both mRNA and protein levels, causing cell cycle arrest at the G0/G1 phase. Furthermore, siRNA-mediated downregulation of CCND1 or CCND2 yielded the same effects on proliferation and cell cycle arrest as miR-146a-5p upregulation did in the NSCLC cell lines. We confirmed that the expression of miR-146a-5p had negative relationship with CCND1 or CCND2. Besides, we also found that miR-146a-5p could inhibit tumor growth in xengroft mouse models, and CCND1 and CCND2 were downregulated in miR-146a-5p overexpressed xengroft tumor tissues. In summary, our results demonstrated that miR-146a-5p could suppress the proliferation and cell cycle progression in NSCLC cells by inhibiting the expression of CCND1 and CCND2.
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Affiliation(s)
- Yan-Li Li
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Ju Wang
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Cai-Yan Zhang
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Yu-Qing Shen
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Hui-Min Wang
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Lei Ding
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Yu-Chen Gu
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Jia-Tao Lou
- Department of Laboratory Medicine, Shanghai Chest Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200030, China
| | - Xin-Tai Zhao
- Shanghai Shines Pharmaceuticals Co., Ltd., Shanghai 200032, China
| | - Zhong-Liang Ma
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - You-Xin Jin
- School of Life Sciences, Shanghai University, Shanghai 200444, China
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30
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Yuan KT, Li BX, Yuan YJ, Tan M, Tan JF, Dai WG, Feng WD, Zuo JD. Deregulation of MicroRNA-375 Inhibits Proliferation and Migration in Gastric Cancer in Association With Autophagy-Mediated AKT/mTOR Signaling Pathways. Technol Cancer Res Treat 2018; 17:1533033818806499. [PMID: 30355273 PMCID: PMC6202745 DOI: 10.1177/1533033818806499] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/24/2018] [Accepted: 08/31/2018] [Indexed: 12/19/2022] Open
Abstract
Gastric cancer is a deadly disease. Some microRNAs are involved in tumor invasion and metastasis. Underexpression of miR-375 has been correlated with tumorigenesis, treatment resistance, and poor prognosis. In this study, we first analyzed the profiles and prognostic values of miR-375 expression in gastric cancer tissues from a public database, and the expression level of miR-375 in gastric cancer samples and gastric cancer cell lines was then analyzed by quantitative real- time polymerase chain reaction. Significant underexpression of miR-375 was seen in all the gastric cancer samples compared to paired paracarcinoma tissues, and the expression level of miR-375 in the gastric cancer cell lines was negatively associated with the cell migration ability. A Cell proliferation (CCK-8) assay was performed to examine cell viability. Overexpression of miR-375 suppressed the proliferation of gastric cancer cells. A Western blot analysis was carried out to test protein expression. Overexpression of miR-375 inhibited autophagy through the AKT/ mammalian target of rapamycin signaling pathway. MiR-375 regulated invasion and migration via AKT/ mammalian target of rapamycin pathway-mediated epithelial-to-mesenchymal transition. Wound healing and migration assays were used to determine the motility of gastric cancer cells. A gastric cancer xenograft nude mouse model was used for an in vivo efficacy evaluation. Overexpression of miR-375 significantly suppressed cell proliferation in the established gastric cancer xenograft nude mouse model. Our results demonstrate that increasing the expression level of miR-375 suppresses proliferation in vitro and in vivo, and they provide a mechanistic and applicable rationale for the future clinical evaluation of miR-375 in gastric cancer treatment. Our findings provide not only new information about the molecular mechanism of microRNAs in regulating invasion and migration in gastric cancer but also a theoretical principle for a potential targeted therapy for gastric cancer.
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Affiliation(s)
- Kai-Tao Yuan
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Bao-Xia Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yu-Jie Yuan
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Min Tan
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jin-Fu Tan
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei-Gang Dai
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei-Dong Feng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ji-Dong Zuo
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
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31
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MiR-146a functions as a small silent player in gastric cancer. Biomed Pharmacother 2017; 96:238-245. [DOI: 10.1016/j.biopha.2017.09.138] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 09/16/2017] [Accepted: 09/26/2017] [Indexed: 12/22/2022] Open
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32
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Huang WT, Cen WL, He RQ, Xie Y, Zhang Y, Li P, Gan TQ, Chen G, Hu XH. Effect of miR‑146a‑5p on tumor growth in NSCLC using chick chorioallantoic membrane assay and bioinformatics investigation. Mol Med Rep 2017; 16:8781-8792. [PMID: 28990079 PMCID: PMC5779957 DOI: 10.3892/mmr.2017.7713] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 09/22/2017] [Indexed: 12/12/2022] Open
Abstract
Our previous study demonstrated that the expression of miR-146a-5p was downregulated in non-small cell lung cancer (NSCLC) tissue, which affected the progression and prognosis of patients with NSCLC. Thus, the present study was conducted to investigate the functional mechanism of miR-146a-5p in tumorigenesis and angiogenesis in NSCLC. Following the construction of a H460 NSCLC cell line in which miR-146a-5p was overexpressed via lentivirus transduction, the NSCLC chick embryo chorioallantoic membrane (CAM) model was established by transplanting miR-146a-5p-overexpressing NSCLC cells into the CAM. Then, the size of the neoplasms within the CAM was measured, the vessel ratio was calculated, and the cellular morphology, metastasis and inflammation of tumor cell was observed using hematoxylin and eosin staining. The target genes of miR-146a-5p were predicted by 12 online software programs; these genes were then subjected to Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes pathway annotations using the Database for Annotation, Visualization and Integrated Discovery 6.7 as well as constructed into a protein interaction network using protein-protein interaction from Search Tool for the Retrieval of Interacting Genes/Proteins. The xenograft tumor size and angiogenesis conditions of the miR-146a-5p-overexpressing group (volume 6.340±0.066 mm3, vessel ratio 9.326±0.083) was obviously restricted (P<0.001) when compared with the low expression group (volume 30.13±0.06 mm3, vessel ratio 16.94±0.11). In addition, marked necrosis along with inflammatory cell infiltration was observed with the HE-stained slices from the miR-146a-5p low expression group. Regarding the results of the target gene prediction, cancer and toll-like receptor signaling were the two most significant pathways represented among the target genes, while JUN, EGFR and RAC1 were the most relevant proteins among the selected potential targets of miR-146a-5p. In a CAM xenograft tumor model, overexpression of miR-146a-5p inhibited the tumorigenesis and angiogenesis of an NSCLC cell line. miR-146a-5p may act as a tumor suppressor gene in NSCLC and have moderate prognostic value in lung cancer.
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Affiliation(s)
- Wen-Ting Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Wei-Luan Cen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Rong-Quan He
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - You Xie
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yu Zhang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Ping Li
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Ting-Qing Gan
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xiao-Hua Hu
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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33
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Han W, Du X, Wang J, Sun L, Li Y. WITHDRAWN: SNHG16 indicates a poor prognosis and affects cell proliferation, migration and invasion in non-small cell lung cancer. Exp Cell Res 2017:S0014-4827(17)30508-6. [PMID: 28935465 DOI: 10.1016/j.yexcr.2017.09.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 09/15/2017] [Accepted: 09/16/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Wei Han
- Department of Pulmonary Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao266011, China
| | - Xuemei Du
- Department of Pulmonary Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao266011, China
| | - Jing Wang
- Department of Pulmonary Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao266011, China
| | - Lixin Sun
- Department of Anesthesia, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao266011, China.
| | - Yongchun Li
- Department of Pulmonary Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao266011, China.
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Chang TY, Tsai WC, Huang TS, Su SH, Chang CY, Ma HY, Wu CH, Yang CY, Lin CH, Huang PH, Cheng CC, Cheng SM, Wang HW. Dysregulation of endothelial colony-forming cell function by a negative feedback loop of circulating miR-146a and -146b in cardiovascular disease patients. PLoS One 2017; 12:e0181562. [PMID: 28727754 PMCID: PMC5519171 DOI: 10.1371/journal.pone.0181562] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 07/03/2017] [Indexed: 11/19/2022] Open
Abstract
Functional impairment of endothelial colony-forming cells (ECFCs), a specific cell lineage of endothelial progenitor cells (EPCs) is highly associated with the severity of coronary artery disease (CAD), the most common type of cardiovascular disease (CVD). Emerging evidence show that circulating microRNAs (miRNAs) in CAD patients’ body fluid hold a great potential as biomarkers. However, our knowledge of the role of circulating miRNA in regulating the function of ECFCs and the progression of CAD is still in its infancy. We showed that when ECFCs from healthy volunteers were incubated with conditioned medium or purified exosomes of cultured CAD ECFCs, the secretory factors from CAD ECFCs dysregulated migration and tube formation ability of healthy ECFCs. It is known that exosomes influence the physiology of recipient cells by introducing RNAs including miRNAs. By using small RNA sequencing (smRNA-seq), we deciphered the circulating miRNome in the plasma of healthy individual and CAD patients, and found that the plasma miRNA spectrum from CAD patients was significantly different from that of healthy control. Interestingly, smRNA-seq of both healthy and CAD ECFCs showed that twelve miRNAs that had a higher expression in the plasma of CAD patients also showed higher expression in CAD ECFCs when compared with healthy control. This result suggests that these miRNAs may be involved in the regulation of ECFC functions. For identification of potential mRNA targets of the differentially expressed miRNA in CAD patients, cDNA microarray analysis was performed to identify the angiogenesis-related genes that were down-regulated in CAD ECFCs and Pearson’s correlation were used to identify miRNAs that were negatively correlated with the identified angiogenesis-related genes. RT-qPCR analysis of the five miRNAs that negatively correlated with the down-regulated angiogenesis-related genes in plasma and ECFC of CAD patients showed miR-146a-5p and miR-146b-5p up-regulation compared to healthy control. Knockdown of miR-146a-5p or miR-146b-5p in CAD ECFCs enhanced migration and tube formation activity in diseased ECFCs. Contrarily, overexpression of miR-146a-5p or miR-146b-5p in healthy ECFC repressed migration and tube formation in ECFCs. TargetScan analysis showed that miR-146a-5p and miR-146b-5p target many of the angiogenesis-related genes that were down-regulated in CAD ECFCs. Knockdown of miR-146a-5p or miR-146b-5p restores CAV1 and RHOJ levels in CAD ECFCs. Reporter assays confirmed the direct binding and repression of miR-146a-5p and miR-146b-5p to the 3’-UTR of mRNA of RHOJ, a positive regulator of angiogenic potential in endothelial cells. Consistently, RHOJ knockdown inhibited the migration and tube formation ability in ECFCs. Collectively, we discovered the dysregulation of miR-146a-5p/RHOJ and miR-146b-5p/RHOJ axis in the plasma and ECFCs of CAD patients that could be used as biomarkers or therapeutic targets for CAD and other angiogenesis-related diseases.
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Affiliation(s)
- Ting-Yu Chang
- Research Center of Translational Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Chi Tsai
- Division of Cardiology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Tse-Shun Huang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
- Institute of Engineering in Medicine, University of California, San Diego, United States of America
| | - Shu-Han Su
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Chih-Young Chang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Hsiu-Yen Ma
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Chun-Hsien Wu
- Division of Cardiology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Chih-Yung Yang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Chi-Hung Lin
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Po-Hsun Huang
- Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital and Institute of Clinical Medicine, Taipei, Taiwan
| | - Cheng-Chung Cheng
- Division of Cardiology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Shu-Meng Cheng
- Division of Cardiology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- * E-mail:
| | - Hsei-Wei Wang
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
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35
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Duan X, Bai J, Wei J, Li Z, Liu X, Xu G. MicroRNA-508-5p suppresses metastasis in human gastric cancer by targeting S-phase kinase‑associated protein 2. Mol Med Rep 2017. [PMID: 28627698 DOI: 10.3892/mmr.2017.6793] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
S-phase kinase-associated protein 2 (SKP2), a potent oncogene was revealed to be upregulated in gastric cancer (GC) tissue samples, in which SKP2 was inversely correlated with microRNA (miR)‑508‑5p transcripts. In present study, the functional effect of miR‑508‑5p on SKP2 and its metastatic potential were investigated in SGC‑7901 GC cells. Significant downregulation of the miR‑508‑5p transcript was associated with the progression of GC. Furthermore, the overexpression of miR‑508‑5p was demonstrated to inhibit the proliferation, migration and invasion of SGC‑7901 cells, as well as induced cell apoptosis and cell cycle arrest at the G0/G1 phase in vitro. The overexpression of miR‑508‑5p was able to downregulate the expression of the SKP2 oncogene, through a mechanism by which miR‑508‑5p directly targeted the SKP2 gene. Thus, regulating transcriptional and post‑transcriptional SKP2 expression, as demonstrated using luciferase reporter assays, reverse transcription‑quantitative polymerase chain reaction analysis and immunoblotting assays. The results of the present study identified that miR‑508‑5p functionally affects the SKP2 gene and reduces metastatic potential in GC, suggesting a novel role of miR‑508‑5p in the regulation of SKP2 and cell cycle.
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Affiliation(s)
- Xiangguo Duan
- Ningxia Key Laboratory of Clinical and Pathogenic Microbiology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Jing Bai
- Department of Laboratory Medicine, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Jun Wei
- Ningxia Key Laboratory of Clinical and Pathogenic Microbiology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Zhenhao Li
- Department of Medical Laboratory, School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Xinlan Liu
- Department of Medical Laboratory, School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Guangxian Xu
- Ningxia Key Laboratory of Clinical and Pathogenic Microbiology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
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36
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Yao Q, Tu C, Lu D, Zou Y, Liu H, Zhang S. Clinicopathological significance of the microRNA-146a/WASP-family verprolin-homologous protein-2 axis in gastric cancer. Cancer Sci 2017; 108:1285-1292. [PMID: 28387985 PMCID: PMC5497796 DOI: 10.1111/cas.13254] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 04/01/2017] [Accepted: 04/05/2017] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is one of the most common malignancies, and cancer invasion and metastasis are the leading causes of cancer‐induced death in GC patients. WASP‐family verprolin‐homologous protein‐2 (WASF2), with a role controlling actin polymerization which is critical in the formation of membrane protrusions involved in cell migration and invasion, has been reported to possess cancer‐promoting effects in several cancers. However, data of WASF2's role in GC are relatively few and even contradictory. In this study, we analyzed WASF2 expression in GC tissues and their corresponding adjacent normal tissues. We found that WASF2 was upregulated in GC tissues and high level of WASF2 was associated with lymph node metastasis of GC. Through gain‐ and loss‐of‐function studies, WASF2 was shown to significantly increase GC cells migration and invasion, but had no effect on proliferation in vitro. Importantly, WASF2 was also found to enhance GC metastasis in vivo. Our previous research suggested that WASF2 was a direct target of microRNA‐146a (miR‐146a). Furthermore, we analyzed miR‐146a's level in GC tissues and their corresponding adjacent normal tissues. We found that miR‐146a was downregulated in GC tissues and low miR‐146a level was associated with advanced TNM stage and lymph node metastasis. The level of WASF2 in GC tissues was negatively correlated with miR‐146a expression and had inverse clinicopathologic features. The newly identified miR‐146a/WASF2 axis may provide a novel therapeutic target for GC.
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Affiliation(s)
- Qunyan Yao
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chuantao Tu
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Di Lu
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yanting Zou
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hongchun Liu
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shuncai Zhang
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
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37
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Chen Y, Zhou B, Xu L, Fan H, Xie J, Wang D. MicroRNA-146a promotes gastric cancer cell apoptosis by targeting transforming growth factor β-activated kinase 1. Mol Med Rep 2017; 16:755-763. [PMID: 28560435 PMCID: PMC5482191 DOI: 10.3892/mmr.2017.6640] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 03/17/2017] [Indexed: 12/27/2022] Open
Abstract
Accumulating evidence suggests that microRNA (miR)-146a functions as an oncogene or tumor suppressor in various cancers. However, the role of miR-146a in gastric cancer (GC) remains to be elucidated. The present study investigated the function of miR-146a in GC cells. The results of the present study revealed that miR-146a modulates GC cell apoptosis. Overexpression of miR-146a significantly increased apoptosis of SGC-7901 cells, whereas inhibition of miR-146a protected cells from apoptosis. miR-146a expression in GC cells was inversely correlated with transforming growth factor β-activated kinase 1 (TAK1) expression, at the mRNA and protein levels. Furthermore, small interfering RNA-mediated silencing of TAK1 enhanced GC cell apoptosis, whereas overexpression of TAK1 promoted survival of GC cells. Overexpression of miR-146a or knockdown of TAK1 led to a marked increase in inhibitor of κBα (IκBα) and a decrease in B-cell lymphoma 2 (Bcl-2) expression levels in SGC-7901 cells. By contrast, silencing of miR-146a or TAK1 overexpression downregulated IκBα and upregulated Bcl-2 expression levels. Therefore, the results of the present study demonstrated a novel negative feedback mechanism to promote GC cell apoptosis involving the miR-146a/TAK1/nuclear factor-κB axis.
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Affiliation(s)
- Yiming Chen
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Bin Zhou
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Lubai Xu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Hengwei Fan
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Junqin Xie
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Dan Wang
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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38
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Tang D, Yue L, Yao R, Zhou L, Yang Y, Lu L, Gao W. P53 prevent tumor invasion and metastasis by down-regulating IDO in lung cancer. Oncotarget 2017; 8:54548-54557. [PMID: 28903363 PMCID: PMC5589602 DOI: 10.18632/oncotarget.17408] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 03/29/2017] [Indexed: 12/13/2022] Open
Abstract
In present study, we are to clear demonstrate the genetic evidence of IDO signaling's impact on invasion and metastasis in lung cancer. Here we examined IDO1 expression levels in non-small cell lung cancer (NSCLC) patients (64) tumor/normal pairs underwent RT-PCR and comprehensive histological, immunohistochemica and clinical analysis. The NSCLC cells stably expressing IDO1 was analyzed for migration and invasion assays and the regulatory mechanism in vitro and metastasis assays in vivo. As results, we reported that IDO1 expression increased by more than 3.2-fold in lung cancer compared with their corresponding non-tumor tissues, and the up-regulation of IDO1 is significantly correlated to TNM stage and lymph node-metastasis. The over-expression of IDO1 significantly encouraged the metastasis and invasion of lung cancer cells, and IDO1 could promote metastasis formation in vivo. Furthermore, we further found that p53 could attenuate IDO signaling in lung cancer cell migration partly. In conclusion, these results demonstrate that the IDO signaling's impact on invasion and metastasis and the suppressive effect of p53 on IDO1 in lung cancer, present one novel therapeutic strategy for early metastatic lung cancer in clinical.
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Affiliation(s)
- Dongfang Tang
- Department of Thoracic Surgery, Huadong Hospital Affiliated to FuDan University, Huadong, China
| | - Lu Yue
- Department of Oncology of the Qingdao Municipal Hospital, Qingdao, China
| | - Ruyong Yao
- Central Laboratory of the Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Lin Zhou
- Central Laboratory of Shanghai Chest Hospital Affiliated to Shanghai Jiaotong University, China
| | - Yuqin Yang
- Central Laboratory of Shanghai Chest Hospital Affiliated to Shanghai Jiaotong University, China
| | - Liming Lu
- Central Laboratory of Shanghai Chest Hospital Affiliated to Shanghai Jiaotong University, China
| | - Wen Gao
- Department of Thoracic Surgery, Huadong Hospital Affiliated to FuDan University, Huadong, China
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39
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Luo Z, Li X, Zhao Z, Yang X, Xiao S, Zhou Y. MicroRNA-146a affects the chemotherapeutic sensitivity and prognosis of advanced gastric cancer through the regulation of LIN52. Oncol Lett 2016; 13:1386-1392. [PMID: 28454266 PMCID: PMC5403335 DOI: 10.3892/ol.2016.5536] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 11/07/2016] [Indexed: 12/12/2022] Open
Abstract
The present study aimed to evaluate the correlation between the expression of microRNA-146a (miR-146a) and its target gene, LIN52, in advanced gastric cancer, and determine their potential effects on chemotherapeutic sensitivity and prognosis. Total RNA was extracted from 93 tissue samples of advanced gastric cancer and corresponding adjacent non-tumor tissues to quantify the relative expression levels of miR-146a using reverse transcription-quantitative polymerase chain reaction analysis. The expression of LIN52 was detected in tumors and normal tissues using immunohistochemical analysis. Correlation analysis was performed to assess the correlation between the expression of miR-146a and LIN52 and clinicopathological parameters of gastric cancer, including clinical diagnostic specificity, clinical tumor-necrosis-metastasis staging, lymph node metastasis, differentiation grade, chemotherapeutic sensitivity and prognosis. The expression of miR-146a in advanced gastric cancer tissues was lower, compared with that in the adjacent non-tumor tissues, and was negatively correlated with lymph node metastasis (P<0.05). Gastric cancer tissues with a low expression level of miR146a exhibited an increased expression level of LIN52 (P<0.05). Receiver operating characteristic curve regression analysis showed that miR-146a had 98% sensitivity in distinguishing gastric cancer tissues and adjacent non-tumor tissues. A high expression of miR-146a in gastric cancer was associated with improved treatment efficacy in patients. The chemotherapeutic sensitivity of patients with tumors expressing high levels of miR-146a was significantly higher, compared with that of patients with tumors expressing low levels of miR-146a (P<0.05). The expression of miR-146a was low in advanced gastric cancer tissues. As a tumor suppressor gene in advanced gastric cancer, miR-146a had a significant negative correlation with LIN52. High expression levels of miR-146a in advanced gastric cancer tissue may be associated with improved treatment efficacy of chemotherapy, suggesting that miR-146a may be a molecular marker for the diagnosis, prediction of treatment efficacy and prognosis of advanced gastric cancer.
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Affiliation(s)
- Zhifen Luo
- Department of Oncology, Henan Provincial People's Hospital, Zhengzhou, Henan, 450003, P.R. China
| | - Xiqing Li
- Department of Oncology, Henan Provincial People's Hospital, Zhengzhou, Henan, 450003, P.R. China
| | - Zunlan Zhao
- Department of Oncology, Henan Provincial People's Hospital, Zhengzhou, Henan, 450003, P.R. China
| | - Xinglong Yang
- Cancer Institute, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Shengjun Xiao
- Department of Pathology, Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Yun Zhou
- Department of Oncology, Henan Provincial People's Hospital, Zhengzhou, Henan, 450003, P.R. China
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40
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Lingzi X, Zhihua Y, Xuelian L, Yangwu R, Haibo Z, Yuxia Z, Baosen Z. Genetic variants in microRNAs predict non-small cell lung cancer prognosis in Chinese female population in a prospective cohort study. Oncotarget 2016; 7:83101-83114. [PMID: 27825117 PMCID: PMC5347756 DOI: 10.18632/oncotarget.13072] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 10/17/2016] [Indexed: 12/13/2022] Open
Abstract
To investigate the prognostic effect of microRNA single nucleotide polymorphisms (SNP) on non-small cell lung cancer (NSCLC) patients, 658 female participants from northeast China were enrolled in our prospective cohort study and followed up from 2010 to 2015. C-containing genotypes of miR-149 rs2292832 were associated with better overall survival (OS). The joint effect of miR-149 and miR-196a2 and the joint effect of miR-149 and miR-608 were also observed in our study. To verify the function of miR-149 rs2292832, A549 cell lines were stably transfected with lenti-virus containing miR-149-C vector, miR-149-T vector and empty vector. Cells containing C allele assumed a higher expression level of miR-149, a decrease in cell growth and the sensitivity to anticancer drug when compared with cells containing T allele. The role of miR-149 playing in cancer prognosis may function through DNA topoisomerases 1 (TOP1) pathway, according to the results from luciferase reporter assays. In conclusion, miR-149 C allele may be a prognostic biomarker for better NSCLC OS.
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MESH Headings
- A549 Cells
- Antineoplastic Agents/pharmacology
- Asian People/genetics
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Non-Small-Cell Lung/ethnology
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/therapy
- Cell Proliferation/drug effects
- China
- Cisplatin/pharmacology
- DNA Topoisomerases, Type I/genetics
- DNA Topoisomerases, Type I/metabolism
- Dose-Response Relationship, Drug
- Female
- Genetic Association Studies
- Genetic Predisposition to Disease
- Humans
- Kaplan-Meier Estimate
- Lung Neoplasms/ethnology
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/therapy
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Middle Aged
- Phenotype
- Polymorphism, Single Nucleotide
- Prospective Studies
- Risk Factors
- Sex Factors
- Time Factors
- Transfection
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Affiliation(s)
- Xia Lingzi
- Department of Epidemiology, China Medical University, Shenyang, Liaoning, 110122, Peoples R China
- Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Province Department of Education, Shenyang, Liaoning, 110122, Peoples R China
| | - Yin Zhihua
- Department of Epidemiology, China Medical University, Shenyang, Liaoning, 110122, Peoples R China
- Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Province Department of Education, Shenyang, Liaoning, 110122, Peoples R China
| | - Li Xuelian
- Department of Epidemiology, China Medical University, Shenyang, Liaoning, 110122, Peoples R China
- Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Province Department of Education, Shenyang, Liaoning, 110122, Peoples R China
| | - Ren Yangwu
- Department of Epidemiology, China Medical University, Shenyang, Liaoning, 110122, Peoples R China
- Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Province Department of Education, Shenyang, Liaoning, 110122, Peoples R China
| | - Zhang Haibo
- Department of Radiotherapy, Shenyang North Hospital, Shenyang, Liaoning, 110001, Peoples R China
| | - Zhao Yuxia
- Department of Radiotherapy Oncology, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, Peoples R China
| | - Zhou Baosen
- Department of Epidemiology, China Medical University, Shenyang, Liaoning, 110122, Peoples R China
- Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Province Department of Education, Shenyang, Liaoning, 110122, Peoples R China
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Wang C, Zhang W, Zhang L, Chen X, Liu F, Zhang J, Guan S, Sun Y, Chen P, Wang D, Un Nesa E, Cheng Y, Yousef GM. miR-146a-5p mediates epithelial-mesenchymal transition of oesophageal squamous cell carcinoma via targeting Notch2. Br J Cancer 2016; 115:1548-1554. [PMID: 27832663 PMCID: PMC5155362 DOI: 10.1038/bjc.2016.367] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/27/2016] [Accepted: 10/08/2016] [Indexed: 02/08/2023] Open
Abstract
Background: Our previous study found that dysregulated microRNA-146a-5p (miR-146a-5p) is involved in oesophageal squamous cell cancer (ESCC) proliferation. This article aimed to evaluate its detailed mechanisms in ESCC epithelial–mesenchymal transition (EMT) progression. Methods: Invasion assay, qRT-PCR and western blotting were used to validate the roles of miR-146a-5p and Notch2 in EMT progression. miRNA target gene prediction databases and dual-luciferase reporter assay were used to validate the target gene. Results: miR-146a-5p inhibitor led to increase of invaded ESCC cells, while miR-146a-5p mimics inhibited invasion ability of ESCC cells. Protein level of E-cadherin decreased, whereas those of Snail and Vimentin increased in the anti-miR-146a-5p group, which demonstrated that miR-146a-5p inhibits EMT progression of ESCC cells. miRNA target gene prediction databases indicated the potential of Notch2 as a direct target gene of miR-146a-5p and dual-luciferase reporter assay validated it. Importantly, shRNA-Notch2 restrained EMT and partially abrogated the inhibiting effects of miR-146a-5p on EMT progression of ESCC cells. Conclusions: miR-146a-5p functions as a tumour-suppressive miRNA targeting Notch2 and inhibits the EMT progression of ESCC.
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Affiliation(s)
- Cong Wang
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Wenxue Zhang
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Lin Zhang
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xuan Chen
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Fang Liu
- Department of Imaging, Shandong Medical College, Jinan, Shandong, China
| | - Jing Zhang
- Department of Medical Genetics, National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences-School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Shanghui Guan
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yi Sun
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Pengxiang Chen
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Ding Wang
- Department of Laboratory Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Effat Un Nesa
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yufeng Cheng
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - George M Yousef
- Department of Laboratory Medicine, and the Keenan Research Centre for Biomedical Science at the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Canada
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Iguchi T, Nambara S, Masuda T, Komatsu H, Ueda M, Kidogami S, Ogawa Y, Hu Q, Sato K, Saito T, Hirata H, Sakimura S, Uchi R, Hayashi N, Ito S, Eguchi H, Sugimachi K, Maehara Y, Mimori K. miR-146a Polymorphism (rs2910164) Predicts Colorectal Cancer Patients' Susceptibility to Liver Metastasis. PLoS One 2016; 11:e0165912. [PMID: 27824903 PMCID: PMC5100922 DOI: 10.1371/journal.pone.0165912] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 10/19/2016] [Indexed: 12/14/2022] Open
Abstract
miR-146a plays important roles in cancer as it directly targets NUMB, an inhibitor of Notch signaling. miR-146a is reportedly regulated by a G>C polymorphism (SNP; rs2910164). This polymorphism affects various cancers, including colorectal cancer (CRC). However, the clinical significance of miR-146a polymorphism in CRC remains unclear. A total of 59 patients with CRC were divided into 2 groups: a CC/CG genotype (n = 32) and a GG genotype (n = 27), based on the miR-146a polymorphism. cDNA microarray analysis was performed using 59 clinical samples. Significantly enriched gene sets in each genotype were extracted using GSEA. We also investigated the association between miR-146a polymorphism and miR-146a, NUMB expression or migratory response in CRC cell lines. The CC/CG genotype was associated with significantly more synchronous liver metastasis (p = 0.007). A heat map of the two genotypes showed that the expression profiles were clearly stratified. GSEA indicated that Notch signaling and JAK/STAT3 signaling were significantly associated with the CC/CG genotype (p = 0.004 and p = 0.023, respectively). CRC cell lines with the pre-miR-146a/C revealed significantly higher miR-146a expression (p = 0.034) and higher NUMB expression and chemotactic activity. In CRC, miR-146a polymorphism is involved in liver metastasis. Identification of this polymorphism could be useful to identify patients with a high risk of liver metastasis in CRC.
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Affiliation(s)
- Tomohiro Iguchi
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Sho Nambara
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Takaaki Masuda
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Hisateru Komatsu
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Masami Ueda
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Shinya Kidogami
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Yushi Ogawa
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Qingjiang Hu
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Kuniaki Sato
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Tomoko Saito
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Hidenari Hirata
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Shotaro Sakimura
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Ryutaro Uchi
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Naoki Hayashi
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Shuhei Ito
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Hidetoshi Eguchi
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Keishi Sugimachi
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
| | - Yoshihiko Maehara
- Department of Surgery and Science Graduate School of Medical Sciences Kyushu University 3-1-1 Maidashi, Higashi-ku, Fukuoka 812–8582, Japan
| | - Koshi Mimori
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874–0838, Japan
- * E-mail:
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43
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Liu HT, Fang L, Cheng YX, Sun Q. LncRNA PVT1 regulates prostate cancer cell growth by inducing the methylation of miR-146a. Cancer Med 2016; 5:3512-3519. [PMID: 27794184 PMCID: PMC5224852 DOI: 10.1002/cam4.900] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/21/2016] [Accepted: 08/17/2016] [Indexed: 01/19/2023] Open
Abstract
Prostate cancer is the third most common causes of death from cancer in men. Our previous study demonstrated that lncRNA PVT1 was overexpressed and played an oncogenic role in the progression of prostate cancer. However, the molecular mechanism of modulating the prostate cancer tumorigenesis was still unknown. In this study, we aim to investigate the interaction between PVT1 and miR-146a in prostate cancer and reveal the potential mechanism in prostate cancer carcinogenesis. The expression level of miR-146a was assessed by quantitative RT-PCR. The correlation analysis and methylation status analysis was made to confirm the interaction between PVT1 and miR-146a. Biological function analysis was performed through gain-of-function and loss-of-function strategies. Our results showed that miR-146a was downregulated and negatively correlated with PVT1 level in prostate cancer. PVT1 mediated miR-146a expression by inducing the methylation of CpG Island in its promoter. miR-146a overexpression eliminated the effects of PVT1 knockdown on prostate cancer cells. PVT1 regulated prostate cancer cell viability and apoptosis depending on miR-146a. Our study suggested a regulatory relationship between lncRNA PVT1 and miR-146a during the process of the prostate cancer tumorigenesis. PVT1 regulated prostate cancer cell viability and apoptosis depending on miR-146a. It would contribute to the diagnosis, treatment and prognosis of prostate cancer.
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Affiliation(s)
- Hong-Tao Liu
- Department of Pathology, Qian-fo-shan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, Jinan, Shandong, 250014, China
| | - Lei Fang
- Department of Pathology, Qian-fo-shan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, Jinan, Shandong, 250014, China
| | - Yu-Xia Cheng
- Department of Pathology, Qian-fo-shan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, Jinan, Shandong, 250014, China
| | - Qing Sun
- Department of Pathology, Qian-fo-shan Hospital Affiliated to Shandong University, No. 16766 Jingshi Road, Jinan, Shandong, 250014, China
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Jiang J, Jia ZF, Cao DH, Wu YH, Sun ZW, Cao XY. Association of the miR-146a rs2910164 polymorphism with gastric cancer susceptibility and prognosis. Future Oncol 2016; 12:2215-26. [PMID: 27267319 DOI: 10.2217/fon-2016-0224] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Aim: Single nucleotide polymorphisms in miRNA-coding region may be involved in the development or progression of gastric cancer (GC). Materials & methods: Six SNPs (miR-146a rs2910164, miR-196a2 rs11614913, miR-27a rs895819, miR-423 rs6505162, miR-608 rs4919510, miR-149 rs2292832) were genotyped in 898 histologically confirmed GC cases and 992 controls in this hospital-based case–control study. Results: The G/G genotype of rs2910164 was associated with reduced risk of GC (odds ratio: 0.76, 95% CI: 0.60–0.97; p = 0.024). Meanwhile, in 838 GC cases receiving radical tumorectomy, cases bearing the G/G genotype of rs2910164 had shorter survival time comparing to cases with C/C or C/G genotype (hazard ratio: 1.36, 95% CI: 1.04–1.78, p = 0.023). Conclusion: rs2910164 of miR-146a is associated with GC.
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Affiliation(s)
- Jing Jiang
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, PR China
- Division of Clinical Research, First Hospital of Jilin University, Changchun, PR China
| | - Zhi-Fang Jia
- Division of Clinical Research, First Hospital of Jilin University, Changchun, PR China
| | - Dong-Hui Cao
- Division of Clinical Research, First Hospital of Jilin University, Changchun, PR China
| | - Yan-Hua Wu
- Division of Clinical Research, First Hospital of Jilin University, Changchun, PR China
| | - Zhi-Wei Sun
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, PR China
| | - Xue-Yuan Cao
- Department of Gastrointestinal Surgery, First Hospital of Jilin University, Changchun, PR China
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45
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da Silva Oliveira KC, Thomaz Araújo TM, Albuquerque CI, Barata GA, Gigek CO, Leal MF, Wisnieski F, Rodrigues Mello Junior FA, Khayat AS, de Assumpção PP, Rodriguez Burbano RM, Smith MC, Calcagno DQ. Role of miRNAs and their potential to be useful as diagnostic and prognostic biomarkers in gastric cancer. World J Gastroenterol 2016; 22:7951-7962. [PMID: 27672290 PMCID: PMC5028809 DOI: 10.3748/wjg.v22.i35.7951] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 06/14/2016] [Accepted: 08/01/2016] [Indexed: 02/06/2023] Open
Abstract
Alterations in epigenetic control of gene expression play an important role in many diseases, including gastric cancer. Many studies have identified a large number of upregulated oncogenic miRNAs and downregulated tumour-suppressor miRNAs in this type of cancer. In this review, we provide an overview of the role of miRNAs, pointing to their potential to be useful as diagnostic and/or prognostic biomarkers in gastric cancer. Moreover, we discuss the influence of polymorphisms and epigenetic modifications on miRNA activity.
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46
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Zhou P, Jiang N, Zhang GX, Sun Q. MiR-203 inhibits tumor invasion and metastasis in gastric cancer by ATM. Acta Biochim Biophys Sin (Shanghai) 2016; 48:696-703. [PMID: 27542403 DOI: 10.1093/abbs/gmw063] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 05/25/2016] [Indexed: 12/11/2022] Open
Abstract
Gastric cancer is one of the most common malignancies in the world. A number of miRNAs are aberrantly expressed during the progression of gastric cancer. In this study, we aimed to investigate the role of miR-203 in the invasion and metastasis of gastric cancer and the potential mechanism of the effect of miR-203 on the tumor progression of gastric cancer. Our results showed that miR-203 was significantly downregulated in gastric cancer tissues and cells, while ataxia telangiectasia mutated kinase (ATM) was upregulated in gastric cancer tissues and cells and was directly regulated by miR-203. Ectopic overexpression of miR-203 inhibited the colony formation, migration, and invasion of gastric cancer cells. In addition, miR-203 overexpression significantly suppressed the protein level of Snail and obviously promoted the protein level of E-cadherin in gastric cancer cells. ATM knockdown phenocopied the effect of miR-203 overexpression. These results suggested that miR-203 suppressed the migration and invasion of gastric cancer through regulating the level of ATM-mediated-Snail and E-cadherin. MiR-203 might be a novel therapeutic strategy for the treatment of gastric cancer.
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47
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Up-regulation of FGFBP1 signaling contributes to miR-146a-induced angiogenesis in human umbilical vein endothelial cells. Sci Rep 2016; 6:25272. [PMID: 27121396 PMCID: PMC4848533 DOI: 10.1038/srep25272] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 04/14/2016] [Indexed: 12/24/2022] Open
Abstract
Recent microRNA expression profiling studies have documented an up-regulation of miR-146a in several angiogenesis models. However, the underlying molecular mechanism of miR-146a in the angiogenic activity of endothelial cells has not been clearly elucidated. The present study was aimed to evaluate whether miR-146a promotes angiogenesis in HUVECs by increasing FGFBP1 expression via directly targeting CREB3L1. miR-146a was over expressed in HUVECs via lentiviral-miR-146a. Expression profiling analysis found miR-146a over expression resulted in up-regulation of angiogenesis and cytokine activity associated genes including FGF2. Further a combination of bioinformatics and experimental analyses demonstrated the CREB3L1 as a bona fide functional target of miR-146a during angiogenesis. Moreover, CREB3L1 inhibited luciferase expression from FGFBP1 promoter containing only CRE elements. Furthermore, CREB3L1 inhibited FGFBP1 expression by binding to two CRE-like sites located at approximately −1780–1777 and −868–865 bp relative to the FGFBP1 transcription start site. Additionally, ectopic expression of CREB3L1 decreased miR-146a-induced FGF2 secretion. These findings indicate that the miR-146a-CREB3L1-FGFBP1 signaling axis plays an important role in the regulation of angiogenesis in HUVECs and provides a potential therapeutic target for anti-angiogenic therapeutics.
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48
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Phuong NTT, Kim SK, Im JH, Yang JW, Choi MC, Lim SC, Lee KY, Kim YM, Yoon JH, Kang KW. Induction of methionine adenosyltransferase 2A in tamoxifen-resistant breast cancer cells. Oncotarget 2016; 7:13902-16. [PMID: 26418898 PMCID: PMC4924687 DOI: 10.18632/oncotarget.5298] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 09/04/2015] [Indexed: 02/07/2023] Open
Abstract
We previously showed that S-adenosylmethionine-mediated hypermethylation of the PTEN promoter was important for the growth of tamoxifen-resistant MCF-7 (TAMR-MCF-7) cancer cells. Here, we found that the basal expression level of methionine adenosyltransferase 2A (MAT2A), a critical enzyme for the biosynthesis of S-adenosylmethionine, was up-regulated in TAMR-MCF-7 cells compared with control MCF-7 cells. Moreover, the basal expression level of MAT2A in T47D cells, a TAM-resistant estrogen receptor-positive cell line was higher compared to MCF-7 cells. Immunohistochemistry confirmed that MAT2A expression in TAM-resistant human breast cancer tissues was higher than that in TAM-responsive cases. The promoter region of human MAT2A contains binding sites for nuclear factor-κB, activator protein-1 (AP-1), and NF-E2-related factor 2 (Nrf2), and the activities of these three transcription factors were enhanced in TAMR-MCF-7 cells. Both the protein expression and transcriptional activity of MAT2A in TAMR-MCF-7 cells were potently suppressed by NF-κB inhibition but not by c-Jun/AP-1 or Nrf2 knock-down. Interestingly, the expression levels of microRNA (miR)-146a and -146b were diminished in TAMR-MCF-7 cells, and miR-146b transduction decreased NF-κB-mediated MAT2A expression. miR-146b restored PTEN expression via the suppression of PTEN promoter methylation in TAMR-MCF-7 cells. Additionally, miR-146b overexpression inhibited cell proliferation and reversed chemoresistance to 4-hydroxytamoxifen in TAMR-MCF-7 cells.
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Affiliation(s)
- Nguyen Thi Thuy Phuong
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Sang Kyum Kim
- College of Pharmacy, Chungnam National University, Daejeon 305-764, South Korea
| | - Ji Hye Im
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Jin Won Yang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Min Chang Choi
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Sung Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju 501-759, South Korea
| | - Kwang Yeol Lee
- College of Pharmacy, Chonnam National University, Gwangju 500-757, South Korea
| | - Young-Mi Kim
- College of Pharmacy, Hanyang University, Ansan 426-791, South Korea
| | - Jeong Hoon Yoon
- Department of Oral & Maxillofacial Pathology, College of Dentistry, Daejeon Dental Hospital, Wonkwang University, Daejeon 302-120, South Korea
| | - Keon Wook Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
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Phuong NTT, Kim SK, Im JH, Yang JW, Choi MC, Lim SC, Lee KY, Kim YM, Yoon JH, Kang KW. Induction of methionine adenosyltransferase 2A in tamoxifen-resistant breast cancer cells. Oncotarget 2016. [PMID: 26418898 DOI: 10.18632/oncotarget.5298.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
We previously showed that S-adenosylmethionine-mediated hypermethylation of the PTEN promoter was important for the growth of tamoxifen-resistant MCF-7 (TAMR-MCF-7) cancer cells. Here, we found that the basal expression level of methionine adenosyltransferase 2A (MAT2A), a critical enzyme for the biosynthesis of S-adenosylmethionine, was up-regulated in TAMR-MCF-7 cells compared with control MCF-7 cells. Moreover, the basal expression level of MAT2A in T47D cells, a TAM-resistant estrogen receptor-positive cell line was higher compared to MCF-7 cells. Immunohistochemistry confirmed that MAT2A expression in TAM-resistant human breast cancer tissues was higher than that in TAM-responsive cases. The promoter region of human MAT2A contains binding sites for nuclear factor-κB, activator protein-1 (AP-1), and NF-E2-related factor 2 (Nrf2), and the activities of these three transcription factors were enhanced in TAMR-MCF-7 cells. Both the protein expression and transcriptional activity of MAT2A in TAMR-MCF-7 cells were potently suppressed by NF-κB inhibition but not by c-Jun/AP-1 or Nrf2 knock-down. Interestingly, the expression levels of microRNA (miR)-146a and -146b were diminished in TAMR-MCF-7 cells, and miR-146b transduction decreased NF-κB-mediated MAT2A expression. miR-146b restored PTEN expression via the suppression of PTEN promoter methylation in TAMR-MCF-7 cells. Additionally, miR-146b overexpression inhibited cell proliferation and reversed chemoresistance to 4-hydroxytamoxifen in TAMR-MCF-7 cells.
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Affiliation(s)
- Nguyen Thi Thuy Phuong
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Sang Kyum Kim
- College of Pharmacy, Chungnam National University, Daejeon 305-764, South Korea
| | - Ji Hye Im
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Jin Won Yang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Min Chang Choi
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Sung Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju 501-759, South Korea
| | - Kwang Yeol Lee
- College of Pharmacy, Chonnam National University, Gwangju 500-757, South Korea
| | - Young-Mi Kim
- College of Pharmacy, Hanyang University, Ansan 426-791, South Korea
| | - Jeong Hoon Yoon
- Department of Oral & Maxillofacial Pathology, College of Dentistry, Daejeon Dental Hospital, Wonkwang University, Daejeon 302-120, South Korea
| | - Keon Wook Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, South Korea
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50
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Wang C, Guan S, Liu F, Chen X, Han L, Wang D, Nesa EU, Wang X, Bao C, Wang N, Cheng Y. Prognostic and diagnostic potential of miR-146a in oesophageal squamous cell carcinoma. Br J Cancer 2016; 114:290-7. [PMID: 26794279 PMCID: PMC4742585 DOI: 10.1038/bjc.2015.463] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 09/26/2015] [Accepted: 11/19/2015] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Accumulating evidence indicates that dysregulated microRNA-146a (miR-146a) is involved in tumour genesis and cancer progression. We aimed to evaluate its expression level and the potential for the diagnosis and prognosis in oesophageal squamous cell cancer (ESCC). METHODS We examined miR-146a expression in 62 pairs of ESCC cancerous and matched paracancerous tissue, 115 formalin-fixed paraffin-embedded (FFPE) tissue samples and serum samples from 154 ESCC patients and 154 healthy volunteers using quantitative reverse transcription-PCR (qRT-PCR). Kaplan-Meier method, Cox regression and receiver-operating characteristic (ROC) curve analysis were applied to analyse its prognostic and diagnostic value. RESULTS MicroRNA-146a expression level was significantly decreased in ESCC tissue compared with paracancerous tissue (P<0.001). Its regulation level was negatively associated with T factor and TNM stage. Kaplan-Meier curve revealed that its downregulation level predicted worse overall survival (OS) and progression-free survival (PFS). Both univariate and multivariate analyses identified miR-146a expression as independent prognostic factor for OS and PFS. Serum miR-146a was significantly reduced in ESCC patients than in healthy controls (P<0.001). Area under the curve ROC value, sensitivity and specificity for this marker were 0.863 ± 0.033, 85.7% and 68.6% in the Discovery Group, and 0.891 ± 0.027, 82.1% and 83.3% in the Validation Group. CONCLUSIONS MicroRNA-146a is significantly reduced in cancerous tissue and serum samples of ESCC patients. It is an ideal biomarker for the prognosis and diagnosis of ESCC.
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Affiliation(s)
- Cong Wang
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Shanghui Guan
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Fang Liu
- Department of Imaging, Shandong Medical College, Jinan, Shandong 250002, China
| | - Xuan Chen
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Lihui Han
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Ding Wang
- Department of Laboratory Medicine, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Effat Un Nesa
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Xintong Wang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan, Shandong 250117, China
| | - Cihang Bao
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Nana Wang
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
| | - Yufeng Cheng
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
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