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Chen C, Lin HG, Yao Z, Jiang YL, Yu HJ, Fang J, Li WN. Transcription factor glucocorticoid modulatory element-binding protein 1 promotes hepatocellular carcinoma progression by activating Yes-associate protein 1. World J Gastrointest Oncol 2023; 15:988-1004. [PMID: 37389116 PMCID: PMC10302989 DOI: 10.4251/wjgo.v15.i6.988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/18/2023] [Accepted: 04/12/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Glucocorticoid modulatory element-binding protein 1 (GMEB1), which has been identified as a transcription factor, is a protein widely expressed in various tissues. Reportedly, the dysregulation of GMEB1 is linked to the genesis and development of multiple cancers.
AIM To explore GMEB1’s biological functions in hepatocellular carcinoma (HCC) and figuring out the molecular mechanism.
METHODS GMEB1 expression in HCC tissues was analyzed employing the StarBase database. Immunohistochemical staining, Western blotting and quantitative real-time PCR were conducted to examine GMEB1 and Yes-associate protein 1 (YAP1) expression in HCC cells and tissues. Cell counting kit-8 assay, Transwell assay and flow cytometry were utilized to examine HCC cell proliferation, migration, invasion and apoptosis, respectively. The JASPAR database was employed for predicting the binding site of GMEB1 with YAP1 promoter. Dual-luciferase reporter gene assay and chromatin immunoprecipitation-qPCR were conducted to verify the binding relationship of GMEB1 with YAP1 promoter region.
RESULTS GMEB1 was up-regulated in HCC cells and tissues, and GMEB1 expression was correlated to the tumor size and TNM stage of HCC patients. GMEB1 overexpression facilitated HCC cell multiplication, migration, and invasion, and suppressed the apoptosis, whereas GMEB1 knockdown had the opposite effects. GMEB1 bound to YAP1 promoter region and positively regulated YAP1 expression in HCC cells.
CONCLUSION GMEB1 facilitates HCC malignant proliferation and metastasis by promoting the transcription of the YAP1 promoter region.
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Affiliation(s)
- Cheng Chen
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
| | - Hai-Guan Lin
- Department of General Surgery, People’s Liberation Army Strategic Support Force Characteristic Medical Center, Beijing 100101, China
| | - Zheng Yao
- Department of Radiation Oncology, Cancer Hospital of The University of Chinese Academy of Sciences, Hangzhou 310022, Zhejiang Province, China
| | - Yi-Ling Jiang
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
| | - Hong-Jin Yu
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
| | - Jing Fang
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
| | - Wei-Na Li
- Department of Medical Oncology, Zhejiang Xiaoshan Hospital, Hangzhou 311202, Zhejiang Province, China
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Targeting the Hippo Pathway in Gastric Cancer and Other Malignancies in the Digestive System: From Bench to Bedside. Biomedicines 2022; 10:biomedicines10102512. [PMID: 36289774 PMCID: PMC9599207 DOI: 10.3390/biomedicines10102512] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 12/24/2022] Open
Abstract
The Hippo pathway is an evolutionally conserved signaling cascade that controls organ size and tissue regeneration under physiological conditions, and its aberrations have been well studied to promote tumor initiation and progression. Dysregulation of the Hippo tumor suppressor signaling frequently occurs in gastric cancer (GC) and other solid tumors and contributes to cancer development through modulating multiple aspects, including cell proliferation, survival, metastasis, and oncotherapy resistance. In the clinic, Hippo components also possess diagnostic and prognostic values for cancer patients. Considering its crucial role in driving tumorigenesis, targeting the Hippo pathway may greatly benefit developing novel cancer therapies. This review summarizes the current research progress regarding the core components and regulation of the Hippo pathway, as well as the mechanism and functional roles of their dysregulation in gastrointestinal malignancies, especially in GC, and discusses the therapeutic potential of targeting the Hippo pathway against cancers.
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3
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Borchardt H, Kogel A, Kalwa H, Weirauch U, Aigner A. Therapeutic miR-506-3p Replacement in Pancreatic Carcinoma Leads to Multiple Effects including Autophagy, Apoptosis, Senescence, and Mitochondrial Alterations In Vitro and In Vivo. Biomedicines 2022; 10:1692. [PMID: 35884996 PMCID: PMC9312874 DOI: 10.3390/biomedicines10071692] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 01/18/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a leading cause of cancer mortality. Considering its very poor prognosis, novel treatment options are urgently needed. MicroRNAs (miRNAs) are involved in the regulation of various physiological and pathological processes. In tumors, aberrant downregulation of given miRNAs may result in pathological overexpression of oncogenes, rendering miRNA replacement as a promising therapeutic strategy. In different tumor entities, miRNA-506-3p (miR506-3p) has been ambivalently described as tumor suppressing or oncogenic. In PDAC, miR-506 is mainly considered as a tumor-suppressing miRNA. In this study, we extensively analyze the cellular and molecular effects of miRNA-506-3p replacement in different PDAC cell lines. Beyond profound antiproliferation and induction of cell death and autophagy, we describe new cellular miR506-3p effects, i.e., induction of senescence and reactive oxygen species (ROS), as well as alterations in mitochondrial potential and structure, and identify multiple underlying molecular effects. In a preclinical therapy study, PDAC xenograft-bearing mice were treated with nanoparticle-formulated miRNA-506 mimics. Profound tumor inhibition upon systemic miRNA-506 administration was associated with multiple cellular and molecular effects. This demonstrates miRNA replacement as a potential therapeutic option for PDAC patients. Due to its broad mechanisms of action on multiple relevant target genes, miR506-3p is identified as a particularly powerful tumor-inhibitory miRNA.
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Affiliation(s)
- Hannes Borchardt
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Faculty of Medicine, University of Leipzig, 04107 Leipzig, Germany; (H.B.); (U.W.)
| | - Alexander Kogel
- Department of Cardiology, University Hospital Leipzig, 04103 Leipzig, Germany;
| | - Hermann Kalwa
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, University of Leipzig, 04107 Leipzig, Germany;
| | - Ulrike Weirauch
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Faculty of Medicine, University of Leipzig, 04107 Leipzig, Germany; (H.B.); (U.W.)
| | - Achim Aigner
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Clinical Pharmacology, Faculty of Medicine, University of Leipzig, 04107 Leipzig, Germany; (H.B.); (U.W.)
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4
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Zhang Y, Wang X, Zhou X. Functions of Yes-association protein (YAP) in cancer progression and anticancer therapy resistance. BRAIN SCIENCE ADVANCES 2022. [DOI: 10.26599/bsa.2022.9050008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The Hippo pathway, a highly conserved kinase cascade, regulates cell proliferation, apoptosis, organ size, and tissue homeostasis. Dysregulation of this pathway reportedly plays an important role in the progression of various human cancers. Yes-association protein (YAP), the Hippo pathway’s core effector, is considered a marker for cancer therapy and patient prognosis. In addition, studies have indicated that YAP is involved in promoting anticancer drug resistance. This review summarizes current knowledge on YAP’s role in cancer progression, anticancer drug resistance, and advances in the development of YAP-targeting drugs. A thorough understanding of the complex interactions among molecular, cellular, and environmental factors concerning YAP function in cancer progression may provide new insight into the underlying mechanism of anticancer drug resistance. It might lead to improved prognosis through novel combined therapies.
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Affiliation(s)
- Yu Zhang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
- These authors contributed equally to this work
| | - Xiang Wang
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
- The Graduate School, Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
- These authors contributed equally to this work
| | - Xiuping Zhou
- Institute of Nervous System Diseases, Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu, China
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5
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The Role of microRNAs in Pulp Inflammation. Cells 2021; 10:cells10082142. [PMID: 34440911 PMCID: PMC8391605 DOI: 10.3390/cells10082142] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 02/07/2023] Open
Abstract
The dental pulp can be affected by thermal, physical, chemical, and bacterial phenomena that stimulate the inflammatory response. The pulp tissue produces an immunological, cellular, and vascular reaction in an attempt to defend itself and resolve the affected tissue. The expression of different microRNAs during pulp inflammation has been previously documented. MicroRNAs (miRNAs) are endogenous small molecules involved in the transcription of genes that regulate the immune system and the inflammatory response. They are present in cellular and physiological functions, as well as in the pathogenesis of human diseases, becoming potential biomarkers for diagnosis, prognosis, monitoring, and safety. Previous studies have evidenced the different roles played by miRNAs in proinflammatory, anti-inflammatory, and immunological phenomena in the dental pulp, highlighting specific key functions of pulp pathology. This systematized review aims to provide an understanding of the role of the different microRNAs detected in the pulp and their effects on the expression of the different target genes that are involved during pulp inflammation.
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Hum M, Tan HJ, Yang Y, Srivastava S, Teh M, Lim YP. WBP2 promotes gastric cancer cell migration via novel targeting of LATS2 kinase in the Hippo tumor suppressor pathway. FASEB J 2021; 35:e21290. [PMID: 33475198 DOI: 10.1096/fj.202000393r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 11/04/2020] [Accepted: 12/03/2020] [Indexed: 01/07/2023]
Abstract
Dysregulation of signaling pathways is responsible for many human diseases. The lack of understanding of the molecular etiology of gastric cancer (GC) poses a substantial challenge to the development of effective cancer therapy. To better understand the molecular mechanisms underlying the pathogenesis of GC, which will facilitate the identification and development of effective therapeutic approaches to improve patient outcomes, mass spectrometry-based phosphoproteomics analysis was performed to map the global molecular changes in GC. A total of 530 proteins with altered phosphorylation levels were detected across a panel of 15 normal and GC cell lines. WW domain-binding protein 2 (WBP2) was validated to be upregulated in a subset of GC cell lines. WBP2 is overexpressed in 61% cases of GC compared to non-cancer tissues and high WBP2 expression correlates with poor clinical outcomes. WBP2 was found to be required for GC cell migration but is dispensable for cell growth and proliferation. WBP2 knockdown increased p-LATS2 with a concomitant increase in p-YAP, resulting in the cytoplasmic retention of YAP and ultimately the inhibition of YAP/TEAD activity and downregulation of TEAD target genes--CTGF and CYR61. Importantly, the loss of LATS2 reversed the activation of Hippo pathway caused by WBP2 knockdown, indicating that WBP2 acts through LATS2 to exert its function on the Hippo pathway. Moreover, WBP2 interacted with LATS2 to inhibit its phosphorylation and activity. In conclusion, our study established a pivotal role for WBP2 in the promotion of GC cell migration via a novel mechanism that inactivates the Hippo pathway transducer LATS2.
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Affiliation(s)
- Melissa Hum
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Hock Jin Tan
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yixuan Yang
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Supriya Srivastava
- Department of Medicine, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore
| | - Ming Teh
- Department of Pathology, National University Health System, Singapore, Singapore
| | - Yoon Pin Lim
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,National University Cancer Institute, Singapore, Singapore.,NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, Singapore
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7
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Xian XS, Wang YT, Jiang XM. Propofol Inhibits Proliferation and Invasion of Stomach Cancer Cells by Regulating miR-205/YAP1 Axis. Cancer Manag Res 2020; 12:10771-10779. [PMID: 33149682 PMCID: PMC7605617 DOI: 10.2147/cmar.s270344] [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: 07/20/2020] [Accepted: 09/04/2020] [Indexed: 12/18/2022] Open
Abstract
Background Propofol is a common clinical intravenous anesthetic. In the last few years, studies have revealed that propofol not only has good anesthetic effect but also has certain anticancer effect. However, its role in stomach cancer (SC) and related mechanisms are still under investigation. Objective This study was designed to determine the effect of propofol on SC and its related mechanisms. Methods Purchased SC cells were treated with propofol at different concentrations (5, 10, and 20 μg/mL), miR-205 overexpression, and YAP1 inhibition. Then, the Cell Counting Kit-8 (CCK8), Transwell, and flow cytometry were carried out to determine the biological behavior changes of treated cells and the expression of miR-205 and YAP1 after treatment. Results Propofol (10 μg/mL and 20 μg/mL) inhibited the growth of SC cells and promoted their apoptosis, and overexpressing miR-205 or inhibiting YAP1 can exert the same effects. In addition, propofol (10μg/mL and 20μg/mL) up-regulated miR-205 in SC cells. The dual-luciferase reporter assay revealed that YAP1 could be targeted and regulated by miR-205, and the rescue assay revealed that inhibiting miR-205 or overexpressing YAP1 could weaken the effect of propofol on the biological behaviors of SC cells. Conclusion Propofol can strongly suppress the proliferation and invasion of SC cells and induce their apoptosis via the miR-205/YAP1 axis.
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Affiliation(s)
- Xiang-Shu Xian
- Department of Gastroenterology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Qingdao 264000, People's Republic of China
| | - Yu-Tie Wang
- Department of Rheumatology and Immunology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Qingdao 264000, People's Republic of China
| | - Xiao-Meng Jiang
- Department of Digestive, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
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8
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Mai H, Xu H, Lin H, Wei Y, Yin Y, Huang Y, Huang S, Liao Y. LINC01541 Functions as a ceRNA to Modulate the Wnt/β-Catenin Pathway by Decoying miR-506-5p in Endometriosis. Reprod Sci 2020; 28:665-674. [PMID: 32833189 DOI: 10.1007/s43032-020-00295-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 08/10/2020] [Indexed: 11/29/2022]
Abstract
Endometriosis is one of the most common gynecological diseases that adversely effects the lives of women. Our previous studies showed that LINC01541 plays a key role in 17β-estradiol (17β-E2)-stimulated endometrial stromal cells (ESCs); however, the mechanism by which LINC01541 exerts if effects requires further elaboration. Here, we report that LINC01541 serves to reduce the bioavailability of miR-506-5p by acting as a molecular sponge. Samples of control endometrial tissue and ectopic endometrial tissue were obtained from 10 healthy volunteers and 18 patients with endometriosis, respectively, and the levels of LINC01541 and miR-506-5p expressions in those tissues were measured. The relationship between LINC01541 and miR-506-5p was verified in 17β-E2-stimulated ESCs. Overexpression or silencing of miR-506-5p in ESCs was performed explore its role in endometriosis, and we also investigated whether WNT inhibitory factor 1 (WIF1) might be a target gene of miR-506-5p. Our results showed that LINC01541 was expressed at low levels and miR-506-5p was expressed at high levels in ectopic tissues. LINC01541 expression was negatively correlated with miR-506-5p expression. We also found that miR-506-5p activated the Wnt/β-catenin pathway by inhibiting WIF1 expression, and thereby induced the proliferation, migration, and invasion of ESCs. Furthermore, silencing of miR-506-5p promoted apoptosis and suppressed the proliferation of 17β-E2-treated ESCs. Overexpression of miR-506-5p could reverse the inhibitory effect of LINC01541 in endometriosis. In summary, this study found that in endometriosis, LINC01541 functions as a ceRNA that modulates the Wnt/β-catenin pathway by decoying miR-506-5p.
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Affiliation(s)
- Hong Mai
- Department of Gynaecology, The Second Affiliated Hospital of Guangxi Medical University, No. 166, Daxuedong Road, Nanning, 530007, China.
| | - Hong Xu
- Department of Gynaecology, The First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, China
| | - Huisi Lin
- Department of Gynaecology, The First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, China
| | - Yeping Wei
- Department of Gynaecology, The Second Affiliated Hospital of Guangxi Medical University, No. 166, Daxuedong Road, Nanning, 530007, China
| | - Yan Yin
- Department of Gynaecology, The Second Affiliated Hospital of Guangxi Medical University, No. 166, Daxuedong Road, Nanning, 530007, China
| | - Yifang Huang
- Department of Gynaecology, The Second Affiliated Hospital of Guangxi Medical University, No. 166, Daxuedong Road, Nanning, 530007, China
| | - Shijin Huang
- Department of Gynaecology, The Second Affiliated Hospital of Guangxi Medical University, No. 166, Daxuedong Road, Nanning, 530007, China
| | - Yan Liao
- Department of Gynaecology, The Second Affiliated Hospital of Guangxi Medical University, No. 166, Daxuedong Road, Nanning, 530007, China
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Guérin A, Martire D, Trenquier E, Lesluyes T, Sagnol S, Pratlong M, Lefebvre E, Chibon F, de Santa Barbara P, Faure S. LIX1 regulates YAP activity and controls gastrointestinal cancer cell plasticity. J Cell Mol Med 2020; 24:9244-9254. [PMID: 32633461 PMCID: PMC7417687 DOI: 10.1111/jcmm.15569] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/02/2020] [Accepted: 06/12/2020] [Indexed: 02/06/2023] Open
Abstract
Gastrointestinal stromal tumours (GISTs), the most common mesenchymal neoplasm of the gastrointestinal tract, result from deregulated proliferation of transformed KIT‐positive interstitial cells of Cajal that share mesenchymal progenitors with smooth muscle cells. Despite the identification of selective KIT inhibitors, primary resistance and relapse remain a major concern. Moreover, most patients develop resistance partly through reactivation of KIT and its downstream signalling pathways. We previously identified the Limb Expression 1 (LIX1) gene as a unique marker of digestive mesenchyme immaturity. We also demonstrated that LIX1 regulates mesenchymal progenitor proliferation and differentiation by controlling the Hippo effector YAP1, which is constitutively activated in many sarcomas. Therefore, we wanted to determine LIX1 role in GIST development. We found that LIX1 is strongly up‐regulated in GIST samples and this is associated with unfavourable prognosis. Moreover, LIX1 controls GIST cell proliferation in vitro and in vivo. Upon LIX1 inactivation in GIST cells, YAP1/TAZ activity is reduced, KIT (the GIST signature) is down‐regulated, and cells acquire smooth muscle lineage features. Our data highlight LIX1 role in digestive mesenchyme‐derived cell‐fate decisions and identify this novel regulator as a target for drug design for GIST treatment by influencing its differentiation status.
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Affiliation(s)
- Amandine Guérin
- PhyMedExp, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Delphine Martire
- PhyMedExp, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Eva Trenquier
- PhyMedExp, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Tom Lesluyes
- Cancer Research Center of Toulouse, University of Toulouse, INSERM, CNRS, Toulouse, France
| | - Sébastien Sagnol
- PhyMedExp, University of Montpellier, INSERM, CNRS, Montpellier, France
| | - Marine Pratlong
- MGX, Biocampus Montpellier, CNRS, INSERM, University of Montpellier, Montpellier, France
| | - Elise Lefebvre
- MGX, Biocampus Montpellier, CNRS, INSERM, University of Montpellier, Montpellier, France
| | - Fréderic Chibon
- Cancer Research Center of Toulouse, University of Toulouse, INSERM, CNRS, Toulouse, France
| | | | - Sandrine Faure
- PhyMedExp, University of Montpellier, INSERM, CNRS, Montpellier, France
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Reactivation of microRNA-506 inhibits gastric carcinoma cell metastasis through ZEB2. Aging (Albany NY) 2020; 11:1821-1831. [PMID: 30923258 PMCID: PMC6461178 DOI: 10.18632/aging.101877] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 03/10/2019] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRNAs) are frequently dysregulated in a variety of human cancers, including gastric carcinoma. To improve our understanding of the role of miRNAs in gastric carcinoma and potential identify novel biomarkers or therapeutic agents, we performed microarray analysis to identify differentially expressed miRNAs in gastric carcinoma, compared with paired non-cancerous gastric tissues. We identified significantly differentially expressed miRNAs in gastric carcinoma tissues, including miR-506. We validated the microarray results by quantitative reverse transcription polymerase chain reaction in 26 specimens and confirmed significant downregulation of miR-506 in gastric carcinoma. Bioinformatics analysis predicted ZEB2 (zinc finger E-box-binding homeobox 2) as a potential target of miR-506. MiR-506 levels and ZEB2 levels were inversely correlated in gastric carcinoma, and low miR-506 levels in gastric carcinoma were associated with poor prognosis. Overexpression of miR-506 in gastric carcinoma cells significantly inhibited cell migration and invasion, while depletion of miR-506 in gastric carcinoma cells significantly increased cell migration and invasion. Transplantation of miR-506-overexpressing gastric carcinoma cells developed significantly smaller tumor, compared to the control. Thus, our results suggest that miR-506 may function as a tumor suppressor and targets and inhibits ZEB2 in gastric carcinoma.
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11
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Wang J, Du Y, Deng J, Wang X, Long F, He J. MicroRNA-506 Is Involved in Regulation of the Occurrence of Lipopolysaccharides (LPS)-Induced Pulpitis by Sirtuin 1 (SIRT1). Med Sci Monit 2019; 25:10008-10015. [PMID: 31877121 PMCID: PMC6944165 DOI: 10.12659/msm.918172] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Toothache often occurs with pulpitis. Lipopolysaccharide (LPS) is produced by gram-negative bacteria, and its accumulation is related to clinical symptoms of pain. MicroRNAs (miRNAs) display anti-inflammatory potential due to their direct regulation of cellular protein expression, which can promote inflammatory changes in dental pulp tissues. However, the mechanism of LPS-induced pulpitis is still unclear. Material/Methods In this study, dental pulp stem cells (DPSCs) were separated and cultured from rat dental pulp tissues; then, LPS was administered to induce inflammation and activate the TLR4 pathway. Results It was found that miR-506 was upregulated following LPS treatment in DPSCs. The inhibition of miR-506 in LPS-treated DPSCs led to attenuated inflammation and deactivation of the TLR4 pathway. Furthermore, the bioinformatic analysis and dual-luciferase reporter gene assay indicated that miR-506 could target the 3′-UTR of sirtuin 1 (SIRT1). Additionally, SIRT1 decreased in LPS-treated DPSCs, and miR-506 transfection resulted in SIRT1 upregulation. SIRT1 overexpression showed a similar inhibitory effect as that of miR-506 downregulation on inflammation and TLR4 activation in DPSCs. Conclusions In brief, miR-506 can protect dental pulp in LPS-induced inflammation by inhibiting the SIRT1-mediated TLR4 pathway.
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Affiliation(s)
- Jun Wang
- Stomatological Center, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
| | - Yi Du
- Department of Nursing, The First Hospital of Lanzhou University, Lanzhou, Gansu, China (mainland)
| | - Junhong Deng
- Department of Stomatology, The Second People's Hospital of Lanzhou City, Lanzhou, Gansu, China (mainland)
| | - Xin Wang
- Departments of Health and Social Care, The Second People's Hospital of Lanzhou City, Lanzhou, Gansu, China (mainland)
| | - Fei Long
- Stomatological Center, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
| | - Jianmin He
- Stomatological Center, Gansu Provincial Hospital, Lanzhou, Gansu, China (mainland)
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12
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Piao L, Wang F, Wang Y, Yang Z, Li Q, Cui L, Yu Q. miR-424-5p Regulates Hepatoma Cell Proliferation and Apoptosis. Cancer Biother Radiopharm 2019; 34:196-202. [PMID: 30676784 DOI: 10.1089/cbr.2018.2625] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Yes-associated protein (Yes-associated protein 1 [YAP1]) is an important oncogene that is related to the pathogenesis and progression of liver cancer. It was found that miR-424-5p expression was significantly decreased in liver cancer tissues, revealing its anticancer effect. Bioinformatic analysis demonstrated the targeted relationship between miR-424-5p and the 3' untranslated region of YAP1. This study investigated the role of miR-424-5p in regulating YAP1 expression and affecting hepatoma cell proliferation and apoptosis. MATERIALS AND METHODS Tumors and normal liver tissues adjacent to tumors were collected from patients to detect the expression of miR-424-5p and YAP1. A dual-luciferase reporter gene assay was adopted to explore the targeted regulation between miR-424-5p and YAP1. Liver cancer HCCLM3 and MHCC97-L cells and normal liver HL-7702 cells were cultured in vitro to compare expression levels of miR-424-5p and YAP1. HCCLM3 and MHCC97-L cells were divided into the miR-NC group and miR-424-5p mimic group. Cell apoptosis was detected by flow cytometry. Cell proliferation was determined by EdU staining. RESULTS Compared with normal liver tissue, miR-424-5p expression was significantly decreased, while YAP1 mRNA and protein levels were obviously upregulated in liver cancer tissues, which were related to the clinical stage. A negative correlation was found between miR-424-5p and YAP1 mRNA levels in liver cancer tissues. Dual-luciferase reporter gene assay confirmed the targeted relationship between miR-424-5p and YAP1. miR-424-5p expression in HCCLM3 and MHCC97-L cells decreased compared with L20 cells, which correlated with malignancy. YAP1 level in HCCLM3 and MHCC97-L cells was significantly enhanced, which correlated with malignancy. miR-424-5p mimic transfection significantly downregulated YAP1 expression in HCCLM3 and MHCC97-L cells, resulting in enhanced apoptosis and attenuated cell proliferation. CONCLUSIONS Decreased miR-424-5p expression and increased YAP1 expression are found in patients with liver cancer. Increased miR-424-5p can inhibit YAP1 expression, attenuate hepatoma cell proliferation, and induce cell apoptosis.
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Affiliation(s)
- Lianshu Piao
- Department of Gastroenterology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Fei Wang
- Department of Gastroenterology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Yanyan Wang
- Department of Gastroenterology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Zirong Yang
- Department of Gastroenterology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Qianwei Li
- Department of Gastroenterology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Lifeng Cui
- Department of Gastroenterology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Qinggong Yu
- Department of Gastroenterology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
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13
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Tan HY, Wang C, Liu G, Zhou X. Long noncoding RNA NEAT1-modulated miR-506 regulates gastric cancer development through targeting STAT3. J Cell Biochem 2019; 120:4827-4836. [PMID: 29363783 DOI: 10.1002/jcb.26691] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 01/22/2018] [Indexed: 12/27/2022]
Abstract
Accumulating evidence has indicated that long noncoding RNA NEAT1 exerts critical roles in cancers. So far, the detailed biological role and mechanisms of NEAT1, which are responsible for human gastric cancer (GC), are still largely unknown. Here, we observed that NEAT1 and STAT3 expressions were significantly upregulated in human GC cells including BGC823, SGC-7901, AGS, MGC803, and MKN28 cells compared with normal gastric epithelial cells GES-1, while miR-506 was downregulated. We inhibited NEAT1 and observed that NEAT1 inhibition was able to repress the growth, migration, and invasion of GC cells. Conversely, overexpression of NEAT1 exhibited an increased ability of GC progression in BGC823 and SGC-7901 cells. Bioinformatics analysis, dual luciferase reporter assays, RIP assays, and RNA pull-down tests validated the negative binding correlation between NEAT1 and miR-506. In addition, it was found that miR-506 can modulate the expression of NEAT1 in vitro. STAT3 was predicted as a messenger RNA (mRNA) target of miR-506, and miR-506 mimics can suppress STAT3 mRNA expression. Subsequently, it was observed that downregulation of NEAT1 can restrain GC development by decreasing STAT3, which can be reversed by miR-506 inhibitors. Therefore, it was hypothesized in our study that NEAT1 can be recognized as a competing endogenous RNA to modulate STAT3 by sponging miR-506 in GC. In conclusion, we implied that NEAT1 can serve as an important biomarker in GC diagnosis and treatment.
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Affiliation(s)
- Hai-Yang Tan
- Department of Gastrointestinal Surgery, The First People's Hospital of Tianmen, Tianmen, Hubei, China
| | - Changcheng Wang
- Department of Gastroenterology, Huai'an Second People's Hospital, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China
| | - Gao Liu
- Department of Gastrointestinal Surgery, Central Hospital of Enshi Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi, Hubei, China
| | - Xiang Zhou
- Department of Rehabilitation, Huai'an Second People's Hospital, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China
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14
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Wang L, Zhang Z, Yu X, Huang X, Liu Z, Chai Y, Yang L, Wang Q, Li M, Zhao J, Hou J, Li F. Unbalanced YAP-SOX9 circuit drives stemness and malignant progression in esophageal squamous cell carcinoma. Oncogene 2018; 38:2042-2055. [PMID: 30401982 PMCID: PMC6756096 DOI: 10.1038/s41388-018-0476-9] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 07/26/2018] [Accepted: 08/02/2018] [Indexed: 12/14/2022]
Abstract
Yes-associated protein (YAP) has been identified as a key regulator of tissue homeostasis. However, the precise role and regulatory mechanism of YAP in esophageal squamous cell carcinoma (ESCC) remains unclear. Here we report that the genetic or pharmacological inhibition of YAP repressed cancer stem cell (CSC)-like properties, including tumorsphere-forming potential, cell motility, and chemoresistance in vitro, and was sufficient to attenuate tumor growth and CSC marker expression in ESCC xenografts. Mechanistically, YAP transcriptionally activated its downstream target SOX9 via TEAD1-mediated binding. We also observed a positive correlation between YAP signaling and SOX9 expression in two independent clinical cohorts. Intriguingly, YAP-targeting microRNAs, including miR-506-3p, which were induced by SOX9, post-transcriptionally repressed YAP expression, contributing to a negative feedback mechanism. Dual inhibition of YAP and SOX9 robustly suppressed malignant phenotypes. Notably, ESCC samples from The Cancer Genome Atlas (TCGA) dataset had frequent (44%) instances of YAP gene amplification and genetic inactivation of Hippo pathway regulators. Nuclear YAP expression was elevated in 197 ESCC tissues from a Chinese cohort. Together, our findings provide evidence that genetic hyperactivation of YAP unbalances the YAP–SOX9 feedback loop and confers CSC-like features in ESCC, suggesting that this YAP–SOX9 circuit represents a potential therapeutic target.
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Affiliation(s)
- Lianghai Wang
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Biomedical Sciences, Cornell University, Ithaca, NY, USA
| | - Zhiyu Zhang
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xiaodan Yu
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China.,Department of Stomatology, First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China
| | - Xuan Huang
- Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Zheng Liu
- Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yuhang Chai
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Lei Yang
- Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Qian Wang
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Man Li
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Jin Zhao
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Jun Hou
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China.
| | - Feng Li
- Department of Pathology, Immunology, and Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Shihezi, Xinjiang, China. .,Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
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15
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Guan H, Shang G, Cui Y, Liu J, Sun X, Cao W, Wang Y, Li Y. Long noncoding RNA APTR contributes to osteosarcoma progression through repression of miR‐132‐3p and upregulation of yes‐associated protein 1. J Cell Physiol 2018; 234:8998-9007. [PMID: 30317613 DOI: 10.1002/jcp.27572] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 09/17/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Hongya Guan
- Translational Medical Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University Zhengzhou China
| | - Guowei Shang
- Department of Orthopaedic Surgery The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Yuanbo Cui
- Translational Medical Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University Zhengzhou China
| | - Jiu Liu
- Translational Medical Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University Zhengzhou China
| | - Xiaoya Sun
- Department of Biochemistry and Molecular Biology School of Basic Medical Sciences, Zhengzhou University Zhengzhou China
| | - Wei Cao
- Translational Medical Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University Zhengzhou China
| | - Yisheng Wang
- Department of Orthopaedic Surgery The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Yuebai Li
- Department of Biochemistry and Molecular Biology School of Basic Medical Sciences, Zhengzhou University Zhengzhou China
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16
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Shibata M, Ham K, Hoque MO. A time for YAP1: Tumorigenesis, immunosuppression and targeted therapy. Int J Cancer 2018; 143:2133-2144. [PMID: 29696628 DOI: 10.1002/ijc.31561] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 04/23/2018] [Indexed: 12/14/2022]
Abstract
YAP1 is one of the most important effectors of the Hippo pathway and has crosstalk with other cancer promoting pathways. YAP1 contributes to cancer development in various ways that include promoting malignant phenotypes, expansion of cancer stem cells and drug resistance of cancer cells. Because pharmacologic or genetic inhibition of YAP1 suppresses tumor progression and increases the drug sensitivity, targeting YAP1 may open a fertile avenue for a novel therapeutic approach in relevant cancers. Recent enormous studies have established the efficacy of immunotherapy, and several immune checkpoint blockades are in clinical use or in the phase of development to treat various cancer types. Immunosuppression in the tumor microenvironment (TME) induced by cancer cells, immune cells and associated stromal cells promotes tumor progression and causes drug resistance. Accumulated evidences of scientific efforts from the last few years suggest that YAP1 influences macrophages, myeloid-derived suppressor cells and regulatory T-cells to facilitate immunosuppressive TME. Although the underlying mechanisms is not clearly discerned, it is evident that YAP1 activating pathways in different cellular components induce immunosuppressive TME. In this review, we summarize the evidences involved in the dual roles of YAP1 in cancer development and immunosuppression in the TME. We also discuss the possibility of YAP1 as a novel therapeutic target.
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Affiliation(s)
- Masahiro Shibata
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Kendall Ham
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Mohammad Obaidul Hoque
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD
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17
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MicroRNA-196b enhances the radiosensitivity of SNU-638 gastric cancer cells by targeting RAD23B. Biomed Pharmacother 2018; 105:362-369. [PMID: 29864624 DOI: 10.1016/j.biopha.2018.05.111] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 05/21/2018] [Accepted: 05/23/2018] [Indexed: 01/05/2023] Open
Abstract
Gastric cancer is characterized by resistance to ionizing radiation. The development of resistance to radiotherapy in gastric cancer patients is one of the obstacles to effective radiotherapy. MicroRNAs are small well-conserved non-coding RNA species that regulate post-transcriptional activation. Our study aimed to investigate the role of miR-196b in radiation-induced gastric cancer. In the present study, we found that miR-196b expression was significantly reduced following radiation. The ectopic miR-196b expression sensitized SNU-638 gastric cancer cells and increased γ-H2AX foci upon radiation treatment. Bioinformatics analysis suggested that the DNA repair protein RAD23B was a putative target gene of miR-196b. Overexpression of miR-196b suppressed RAD23B expression in SNU-638 cells. Reporter assays further showed that miR-196b inhibited RAD23B 3'-UTR luciferase activity. Knockdown of RAD23B by small interfering RNA transfection closely mimicked the outcomes of miR-196b transfection, leading to impaired DNA damage repair in gastric cancer cells. Our results show that miR-196b improved radiosensitivity of SNU-638 cells by targeting RAD23B. Our data indicate that miR-196b is a potential target to enhance the effect of radiation treatment on gastric cancer cells. These findings will provide evidence for a new therapeutic target in radiotherapy.
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18
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Ouyang Y, Yuan W, Qiu S. MicroRNA-153 functions as a tumor suppressor in gastric cancer via targeting Kruppel-like factor 5. Exp Ther Med 2018; 16:473-482. [PMID: 30112020 PMCID: PMC6090467 DOI: 10.3892/etm.2018.6226] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 07/20/2017] [Indexed: 02/07/2023] Open
Abstract
Various microRNAs (miRs) have been demonstrated to serve important roles in gastric cancer (GC). miR-153 in particular has been reported to serve a suppressive role in GC; however, the underlying mechanism remains unclear. In the present study Reverse transcription-quantitative polymerase chain reaction and western blot analysis were used to examine the mRNA and protein expression of Kruppel-like factor 5. An MTT, wound healing and transwell assay were used to study cell proliferation, migration and invasion, respectively. In the present study, quantitative polymerase chain reaction data indicated that miR-153 was significantly downregulated in GC tissues compared with the adjacent non-tumor tissues. In addition, the reduced expression of miR-153 was significantly associated with GC aggressiveness and poor prognosis of patients. The expression of miR-153 was also reduced in GC cell lines, including KATO III, NCI-N87, SNU-16 and SNU-5, when compared with normal gastric epithelial GES-1 cells. Overexpression of miR-153 in the GC SNU-5 cells by miR-153 mimic transfection significantly inhibited the cell proliferation, migration and invasion. Furthermore, KLF5 was identified as a target gene of miR-153 in SNU-5 cells by bioinformatics prediction. It was observed that KLF5 was significantly upregulated in GC tissues and cell lines, and its expression was negatively regulated by miR-153 in SNU-5 cells. Overexpression of KLF5 impaired the suppressive effects of miR-153 on the proliferation, migration and invasion of SNU-5 cells. In conclusion, the present study demonstrated that miR-153 serves a tumor suppressive role in GC, at least partly, through directly targeting KLF5, thus highlighting the clinical significance of miR-153 in GC.
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Affiliation(s)
- Yanlan Ouyang
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Weijie Yuan
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Sainan Qiu
- Department of Colorectal Anal Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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19
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Molaei F, Forghanifard MM, Fahim Y, Abbaszadegan MR. Molecular Signaling in Tumorigenesis of Gastric Cancer. IRANIAN BIOMEDICAL JOURNAL 2018; 22:217-30. [PMID: 29706061 PMCID: PMC5949124 DOI: 10.22034/ibj.22.4.217] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gastric cancer (GC) is regarded as the fifth most common cancer and the third cause of cancer-related deaths worldwide. Mechanism of GC pathogenesis is still unclear and relies on multiple factors, including environmental and genetic characteristics. One of the most important environmental factors of GC occurrence is infection with Helicobacter pylori that is classified as class one carcinogens. Dysregulation of several genes and pathways play an essential role during gastric carcinogenesis. Dysregulation of developmental pathways such as Wnt/β-catenin signaling, Hedgehog signaling, Hippo pathway, Notch signaling, nuclear factor-kB, and epidermal growth factor receptor have been found in GC. Epithelial-mesenchymal transition, as an important process during embryogenesis and tumorigenesis, is supposed to play a role in initiation, invasion, metastasis, and progression of GC. Although surgery is the main therapeutic modality of the disease, the understanding of biological processes of cell signaling pathways may help to develop new therapeutic targets for GC.
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Affiliation(s)
- Fatemeh Molaei
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Yasaman Fahim
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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20
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Li Y, Chen H, She P, Chen T, Chen L, Yuan J, Jiang B. microRNA-23a promotes cell growth and metastasis in gastric cancer via targeting SPRY2-mediated ERK signaling. Oncol Lett 2018; 15:8433-8441. [PMID: 29805579 PMCID: PMC5950565 DOI: 10.3892/ol.2018.8374] [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: 04/03/2017] [Accepted: 12/07/2017] [Indexed: 01/11/2023] Open
Abstract
microRNAs (miRs) serve important roles in various human cancer types. Recently, miR-23a has been indicated as an oncogene in gastric cancer, but the underlying mechanism remains unclear. In the present study, reverse transcription-quantitative polymerase chain reaction and western blot analysis was used to explore the effects of miR-23a in gastric cancer. Additionally, cell proliferation, migration and invasion were examined using an MTT assay, wound healing assay and Transwell assay, respectively. Furthermore, a luciferase reporter gene assay was used to confirm the target association. It was determined that miR-23a was significantly upregulated in gastric cancer tissues and cell lines compared with adjacent tissues, and a normal gastric epithelial cell line. Furthermore, its upregulation was significantly associated with cancer progression and poor prognosis of patients. Knockdown of miR-23a caused a notable reduction in the proliferation, migration and invasion of gastric cancer AGS cells. Sprouty homolog 2 (SPRY2) was then predicted to be target gene of miR-23a. A luciferase reporter gene assay data demonstrated that miR-23a has the ability to directly bind to the 3′-untranslational region of SPRY2 mRNA. Further investigation demonstrated that SPRY2 was significantly downregulated in gastric cancer tissues and cell lines, and the protein expression of SPRY2 was negatively regulated by miR-23a in AGS cells. Furthermore, knockdown of SPRY2 reduced the suppressive effects of miR-23a inhibition in AGS cell proliferation, migration and invasion. In addition, the activity of extracellular signal-regulated kinase (ERK) signaling was also inhibited by the miR-23a/SPRY2 knockdown in AGS cells. The present study indicated that miR-23a serves a promoting role in gastric cancer via targeting SPRY2 and downstream ERK signaling.
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Affiliation(s)
- Yingjia Li
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Hui Chen
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Pengfei She
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Ti Chen
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Lihua Chen
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jinling Yuan
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Botao Jiang
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan 410005, P.R. China
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21
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Li J, Ju J, Ni B, Wang H. The emerging role of miR-506 in cancer. Oncotarget 2018; 7:62778-62788. [PMID: 27542202 PMCID: PMC5308765 DOI: 10.18632/oncotarget.11294] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 08/10/2016] [Indexed: 12/25/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that post-transcriptionally regulate gene expression. They are involved in almost all biological processes, and many have been identified as potential oncogenes or tumor suppressor genes. miR-506 was recently discovered to play pivotal roles in regulating cell proliferation, differentiation, migration and invasion. Dysregulation of miR-506 has been demonstrated in multiple types of cancers; however, whether it functions as an oncogene or a tumor suppressor seems to be context-dependent. Altered miR-506 expression in cancer is caused by promoter methylation and changes in upstream transcription factors. In this review, we summarize the current understanding of the diverse roles and underlying mechanisms of miR-506 and its involvement in cancer, and suggest the potential therapeutic strategy based on miR-506.
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Affiliation(s)
- Jian Li
- Institute of Hepatopancreatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Jingfang Ju
- Translational Research Laboratory, Department of Pathology, Stony Brook University, Stony Brook, NY, USA
| | - Bing Ni
- Department of Pathophysiology and High Altitude Pathology, Third Military Medical University, Chongqing, PR China
| | - Huaizhi Wang
- Institute of Hepatopancreatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, PR China
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22
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Guo S, Yang P, Jiang X, Li X, Wang Y, Zhang X, Sun B, Zhang Y, Jia Y. Genetic and epigenetic silencing of mircoRNA-506-3p enhances COTL1 oncogene expression to foster non-small lung cancer progression. Oncotarget 2018; 8:644-657. [PMID: 27893417 PMCID: PMC5352185 DOI: 10.18632/oncotarget.13501] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/14/2016] [Indexed: 12/22/2022] Open
Abstract
Although previous studies suggested that microRNA-506-3p (miR-506-3p) was frequently downregulated, and functioned as a tumor suppressor in several cancers, the biological role and intrinsic regulatory mechanisms of miR-506-3p in non-small cell lung cancer (NSCLC) remain elusive. The present study found miR-506-3p expression was downregulated in advanced NSCLC tissues and cell lines. The expression of miR-506-3p in NSCLC was inversely correlated with larger tumor size, advanced TNM stage and lymph node metastasis. In addition, we also found patients with lower expression of miR-506-3p had a poor prognosis than those patients with higher expression of miR-506-3p. Function studies demonstrated that aberrant miR-506-3p expression modulates tumor cell growth, cell mobility, cell migration and invasion in vitro and in vivo. Mechanistic investigations manifested that coactosin-like protein 1 (COTL1) was a direct downstream target of miR-506-3p. Knockdown of COTL1 mimicked the tumor-suppressive effects of miR-506-3p overexpression in A549 cells, whereas COTL1 overexpression enhanced the tumorigenic function in HCC827 cells. Importantly, we also found GATA3 transcriptionally actives miR-506-3p expression, and the long non-coding RNA urothelial carcinoma-associated 1 (UCA1) exerts oncogenic function in NSCLC by competitively ‘sponging’ miRNA-506. Together, our combined results elucidated genetic and epigenetic silencing of miR-506-3p enhances COTL1 oncogene expression to foster NSCLC progression.
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Affiliation(s)
- Shanqi Guo
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Peiying Yang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xingkang Jiang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xiaojiang Li
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuanyuan Wang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xin Zhang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Binxu Sun
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yao Zhang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yingjie Jia
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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23
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Li L, Zhao J, Huang S, Wang Y, Zhu L, Cao Y, Xiong J, Deng J. MiR-93-5p promotes gastric cancer-cell progression via inactivation of the Hippo signaling pathway. Gene 2017; 641:240-247. [PMID: 29045821 DOI: 10.1016/j.gene.2017.09.071] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 09/01/2017] [Accepted: 09/26/2017] [Indexed: 01/07/2023]
Abstract
MiR-93-5p has been previously found to be associated with gastric cancer (GC) tumorigenesis; however, the current understanding of its function in this context remains largely incomplete. In the present study, we showed that miR-93-5p was upregulated in GC tissues. We also demonstrated that miR-93-5p overexpression promoted the proliferation, migration, invasion, and chemoresistance of SGC-7901 cells in vitro, and conversely, that endogenously silencing miR-93-5p expression induced the opposite effects in HGC-27 cells. Overexpression of miR-93-5p was found to inactivate the Hippo pathway, and furthermore, miR-93-5p knockdown activated Hippo signaling. MiR-93-5p upregulation was also shown to inhibit the expression of two well-characterized Hippo pathway regulators, protocadherin Fat 4 (FAT4), and large tumor suppressors 2 (LATS2), at both the mRNA and protein level. Additionally, the results of bioinformatics analyses and luciferase reporter assays indicated that miR-93-5p directly targets the 3'-UTR of FAT4 and LATS2. Taken together, these results demonstrate that miR-93-5p promotes GC-cell progression via the inactivation of the Hippo signaling pathway, and thus, represents a potential therapeutic target for the treatment of GC.
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Affiliation(s)
- Li Li
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, 330006, PR China
| | - Jianguo Zhao
- Department of Oncology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000, PR China
| | - Shanshan Huang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, 330006, PR China
| | - Yi Wang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, 330006, PR China
| | - Lingling Zhu
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, 330006, PR China
| | - Yuan Cao
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, 330006, PR China
| | - Jianping Xiong
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, 330006, PR China.
| | - Jun Deng
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, 330006, PR China.
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24
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Li H, Liu G, Pan K, Miao X, Xie Y. Methylation-induced downregulation and tumor suppressive role of microRNA-29b in gastric cancer through targeting LASP1. Oncotarget 2017; 8:95880-95895. [PMID: 29221174 PMCID: PMC5707068 DOI: 10.18632/oncotarget.21431] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 08/21/2017] [Indexed: 01/09/2023] Open
Abstract
MicroRNAs (miRs) have been demonstrated to play promoting or tumor suppressive roles in various human cancers, but the regulatory mechanism of miR-29b underlying gastric cancer development and progression still remains largely unclear. In the present study, we found that miR-29b was significantly downregulated in gastric cancer tissues and cell lines. Low expression of miR-29b was significantly associated with DNA methylation, and treatment with DNA methyltransferase inhibitor 5-Aza-20-deoxycytidine upregulated miR-29b in gastric cancer cells. In addition, both reduced miR-29b expression and miR-29b methylation were associated with disease progression and poor prognosis in gastric cancer. Restoration of miR-29b caused a reduction in gastric cancer cell proliferation, migration, and invasion, and inhibited tumor growth in vivo. LASP1 was then identified as a target gene of miR-29b in gastric cancer cells. Moreover, upregulation of LASP1 was significantly associated with gastric cancer progression and poor prognosis. Knockdown of LASP1 also suppressed the proliferation, migration, and invasion of gastric cancer cells. Moreover, overexpression of LASP1 impaired the suppressive effects of miR-29b on the malignant phenotypes of gastric cancer cells, suggesting that miR-29b may inhibit gastric cancer growth and metastasis via targeting LASP1. According to these data, miR-29b may be used as a potential therapeutic candidate for gastric cancer.
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Affiliation(s)
- Hui Li
- Department of Anesthesia, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guoqing Liu
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ke Pan
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiongying Miao
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yong Xie
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Zhang Y, Guan DH, Bi RX, Xie J, Yang CH, Jiang YH. Prognostic value of microRNAs in gastric cancer: a meta-analysis. Oncotarget 2017; 8:55489-55510. [PMID: 28903436 PMCID: PMC5589675 DOI: 10.18632/oncotarget.18590] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/08/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Previous articles have reported that expression levels of microRNAs (miRNAs) are associated with survival time of patients with gastric cancer (GC). A systematic review and meta-analysis was performed to study the outcome of it. DESIGN Meta-analysis. METHODS English studies estimating expression levels of miRNAs with any of survival curves in GC were identified up till March 19, 2017 through performing online searches in PubMed, EMBASE, Web of Science and Cochrane Database of Systematic Reviews by two authors independently. The pooled hazard ratios (HR) with 95% confidence intervals (CI) were used to estimate the correlation between miRNA expression and overall survival (OS). RESULTS Sixty-nine relevant articles about 26 miRNAs with 6148 patients were ultimately included. GC patients with high expression of miR-20b (HR=2.38, 95%CI=1.16-4.87), 21 (HR=1.77, 95%CI=1.01-3.08), 106b (HR=1.84, 95%CI=1.15-2.94), 196a (HR=2.66, 95%CI=1.94-3.63), 196b (HR=1.67, 95%CI=1.38-2.02), 214 (HR=1.84, 95%CI=1.27-2.67) or low expression of miR-125a (HR=2.06, 95%CI=1.26-3.37), 137 (HR=3.21, 95%CI=1.68-6.13), 141 (HR=2.47, 95%CI=1.34-4.56), 145 (HR=1.62, 95%CI=1.07-2.46), 146a (HR=2.60, 95%CI=1.63-4.13), 206 (HR=2.85, 95%CI=1.73-4.70), 218 (HR=2.61, 95%CI=1.74-3.92), 451 (HR=1.73, 95%CI=1.19-2.52), 486-5p (HR=2.45, 95%CI=1.65-3.65), 506 (HR=2.07, 95%CI=1.33-3.23) have significantly poor OS (P<0.05). CONCLUSIONS In summary, miR-20b, 21, 106b, 125a, 137, 141, 145, 146a, 196a, 196b, 206, 214, 218, 451, 486-5p and 506 demonstrate significantly prognostic value. Among them, miR-20b, 125a, 137, 141, 146a, 196a, 206, 218, 486-5p and 506 are strong biomarkers of prognosis in GC.
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Affiliation(s)
- Yue Zhang
- 1 First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, People's Republic of China
| | - Dong-Hui Guan
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Rong-Xiu Bi
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Jin Xie
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Chuan-Hua Yang
- 3 Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Yue-Hua Jiang
- 4 Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
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26
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The Hippo pathway in hepatocellular carcinoma: Non-coding RNAs in action. Cancer Lett 2017; 400:175-182. [DOI: 10.1016/j.canlet.2017.04.032] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 04/08/2017] [Accepted: 04/22/2017] [Indexed: 01/18/2023]
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27
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Niu Q, Li X, Xia D, Jiang Y, Tian Z, Bian C, Zhang C, Liu P, Zhang F, Yang Y, Wang G. MicroRNA-186 affects the proliferation of tumor cells via yes-associated protein 1 in the occurrence and development of pancreatic cancer. Exp Ther Med 2017; 14:2094-2100. [PMID: 28962129 PMCID: PMC5609192 DOI: 10.3892/etm.2017.4770] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 03/31/2017] [Indexed: 12/12/2022] Open
Abstract
The present study aimed to determine the expression of microRNA (miRNA or miR)-186 in tumor tissues and peripheral blood of patients with pancreatic cancer (PC), as well as its mechanism of regulation. A total of 65 patients with PC who underwent surgery between June 2013 and October 2015 were included. In addition, 59 healthy subjects were recruited as controls. Reverse transcription-quantitative polymerase chain reaction was used to measure the expression of mRNA and miRNA. Western blotting and enzyme-linked immunosorbent assay were used to determine protein expression. Bioinformatics was employed for the prediction of the target gene of miR-186, whereas dual luciferase reporter assay was performed to identify whether miR-186 directly bound to YAP1 mRNA. Human pulmonary aortic endothelial cells (HPACs) were transfected with ago-miR-186. YAP1 expression in HPACs was silenced by siRNA. MTT assay was used to evaluate the viability of HPACs. YAP1 mRNA and protein expression levels were elevated in PC. In addition, expression levels of miR-186 in PC were downregulated. miR-186 regulated the expression of YAP1 by binding with the 3'-untranslated region of YAP1. Elevated expression of miR-186 inhibited the proliferation of HPACs by downregulating the expression of YAP1. Decreased expression of YAP1 by siRNA reduced the viability of HPACs. The present study demonstrates that YAP1 is upregulated in the tumor tissues and blood of PC patients, and this may be associated with the downregulation of miR-186. In addition, miR-186 may affect the occurrence and development of PC by controlling the proliferation of PC cells via YAP1.
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Affiliation(s)
- Qinghui Niu
- Department of Infection, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Xiaoyu Li
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Di Xia
- Department of Emergency, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Yueping Jiang
- Department of Infection, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Zibin Tian
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Cheng Bian
- Department of Infection, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Cuiping Zhang
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Pei Liu
- Department of Infection, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Fengjuan Zhang
- Department of Infection, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Yuling Yang
- Department of Infection, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Guanglan Wang
- Department of Infection, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
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Zheng Q, Chen C, Guan H, Kang W, Yu C. Prognostic role of microRNAs in human gastrointestinal cancer: A systematic review and meta-analysis. Oncotarget 2017; 8:46611-46623. [PMID: 28402940 PMCID: PMC5542297 DOI: 10.18632/oncotarget.16679] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 03/09/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Gastrointestinal cancers (GICs) mainly including esophageal, gastric and colorectal cancer, are the most common cause of cancer-related death and lead into high mortality worldwide. We performed this systematic review and meta-analysis to elucidate relationship between multiple microRNAs (miRs) expression and survival of GIC patients. METHODS We searched a wide range of database. Fixed-effects and random-effects models were used to calculate the pooled hazard ratio values of overall survival and disease free survival. In addition, funnel plots were used to qualitatively analyze the publication bias and verified by Begg's test while it seems asymmetry. RESULTS 60 studies involving a total of 6225 patients (1271 with esophageal cancer, 3467 with gastric cancer and 1517 with colorectal cancer) were included in our meta-analysis. The pooled hazard ratio values of overall survival related to different miRs expression in esophageal, gastric, colorectal and gastrointestinal cancer were 2.10 (1.78-2.49), 2.02 (1.83-2.23), 2.54 (2.14-3.02) and 2.15 (1.99-2.31), respectively. We have identified a total of 59 miRs including 23 significantly up-regulated expression miRs (miR-214, miR-17, miR-20a, miR-200c, miR-107, miR-27a, etc.) and 36 significantly down-regulated expression miRs (miR-433, let-7g, miR-125a-5p, miR-760, miR-206, miR-26a, miR-200b, miR-185, etc.) correlated with poor prognosis in GIC patients. Moreover, 35 of them revealed mechanisms. CONCLUSION Overall, specific miRs are significantly associated with the prognosis of GIC patients and potentially eligible for the prediction of patients survival. It also provides a potential value for clinical decision-making development and may serve as a promising miR-based target therapy waiting for further elucidation.
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Affiliation(s)
- Qiang Zheng
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Changyu Chen
- Department of General Surgery, First Affiliated Hospital of Anhui Traditional Medical University, Hefei, China
| | - Haiyang Guan
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Weibiao Kang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Changjun Yu
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
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Ji T, Zhang X, Li W. microRNA-205 acts as a tumor suppressor and directly targets YAP1 in glioma. Mol Med Rep 2017. [DOI: 10.3892/mmr.2017.6748] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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30
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Han S, Wang D, Tang G, Yang X, Jiao C, Yang R, Zhang Y, Huo L, Shao Z, Lu Z, Zhang J, Li X. Suppression of miR-16 promotes tumor growth and metastasis through reversely regulating YAP1 in human cholangiocarcinoma. Oncotarget 2017; 8:56635-56650. [PMID: 28915618 PMCID: PMC5593589 DOI: 10.18632/oncotarget.17832] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 04/19/2017] [Indexed: 01/17/2023] Open
Abstract
Background & Aims Aberrant expression of microRNAs is associated with many cancers progression. Many studies have shown that miR-16 is down-regulated in many cancers. However, its role in cholangiocarcinoma (CCA) is unknown. Methods Quantitative real-time PCR (qRT-PCR) was developed to measure miR-16 expression in CCA tissues and cell lines. CCK-8, colony formation and transwell assays were used to reveal the role of miR-16 in CCA cell proliferation and malignant transformation in vitro. The loss-and-gain function was further validated by subcutaneous xenotransplantation and tail vein injection xenotransplantation model in vivo. Dual-luciferase reporter assay was performed to validate the relationship of miR-16 with YAP1. Results MiR-16 was notably downregulated in CCA tissues, which was associated with tumor size, metastasis, and TNM stage. Both in vitro and in vivo studies demonstrated that miR-16 could suppress proliferation, invasion and metastasis throughout the progression of CCA. We further identified YAP1 as a direct target gene of miR-16 and found that miR-16 could regulate CCA cell growth and invasion in a YAP1-dependent manner. In addition, YAP1 was markedly upregulated in CCA tissues, which was reversely correlated with miR-16 level in tissue samples. Besides, Down-regulation of miR-16 was remarkably associated with tumor progression and poor survival in CCA patients through a Kaplan–Meier survival analysis. Conclusions miR-16, as a novel tumor suppressor in CCA through directly targeting YAP1, might be a promising therapeutic target or prognosis biomarker for CCA.
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Affiliation(s)
- Sheng Han
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Dong Wang
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Guohua Tang
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Xinxiang Yang
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Chenyu Jiao
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Renjie Yang
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Yaodong Zhang
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Liqun Huo
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Zicheng Shao
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Zefa Lu
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Jiawei Zhang
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
| | - Xiangcheng Li
- Liver Transplantation Center of The First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, P.R. China
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Deng J, Wang Y, Lei J, Lei W, Xiong JP. Insights into the involvement of noncoding RNAs in 5-fluorouracil drug resistance. Tumour Biol 2017; 39:1010428317697553. [PMID: 28381160 DOI: 10.1177/1010428317697553] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
5-Fluorouracil is a classic chemotherapeutic drug that is widely used to treat various cancers. However, patients often exhibit primary or acquired drug resistance during treatment with 5-fluorouracil chemotherapy. 5-Fluorouracil resistance is a multifactorial event that involves abnormal enzyme metabolism, transport deregulation, cell cycle disorders, apoptosis resistance, and mismatch repair deficiency. Despite advancements in bioresearch technologies in the past several decades, the molecular mechanisms of 5-fluorouracil resistance have not been completely clarified. Recently, microarray analyses have shown that noncoding RNAs (i.e. microRNAs and long noncoding RNAs) play a vital role in 5-fluorouracil resistance in multiple cancer cell lines. These noncoding RNAs can function as oncogenes or tumor suppressors, contributing to 5-fluorouracil drug resistance. In this review, we discuss the effects of microRNAs on 5-fluorouracil sensitivity via targeting of metabolic enzymes, the cell cycle, apoptosis, autophagy, the epithelial–mesenchymal transition, and cancer stem cells. In particular, we focus on summarizing current knowledge on the molecular mechanisms through which long noncoding RNAs mediate 5-fluorouracil drug resistance. Moreover, we describe the specific microRNAs that may function as markers for prediction of chemotherapeutic response to 5-fluorouracil. This review will help to improve the current understanding of how to reverse 5-fluorouracil resistance and may facilitate the establishment of new strategies for alleviating drug resistance in the future.
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Affiliation(s)
- Jun Deng
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yi Wang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jun Lei
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wan Lei
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jian Ping Xiong
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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32
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Gao HY, Huo FC, Wang HY, Pei DS. MicroRNA-9 inhibits the gastric cancer cell proliferation by targeting TNFAIP8. Cell Prolif 2017; 50. [PMID: 28127811 DOI: 10.1111/cpr.12331] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 12/16/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND OBJECTIVES MicroRNA-9 is frequently dysregulated in many human carcinoma types, including gastric cancer (GC). Previous studies demonstrated that the expression of TNFAIP8 in GC is correlated with tumour occurrence, development, invasion, metastasis and prognosis. However, till now, the relationship between MicroRNA-9 and TNFAIP8 in GC has not been reported. MATERIALS AND METHODS Levels of miR-9 and TNFAIP8 expression in GC tissues and in human GC cell lines were studied using qualitative real-time PCR (qRT-PCR) and Western blotting. Cell viability was detected using the CCK-8 and clone formation assays. A dual-luciferase reporter system was used to confirm the target gene of miR-9. RESULTS We found that the expression level of MicroRNA-9 in GC tissues and cell lines was significantly lower than that in adjacent non-cancerous tissues and human immortalized gastric epithelial cell (GES) line, respectively. In addition, overexpression of MicroRNA-9 markedly inhibited GC cell proliferation in vitro and tumour growth in vivo. Further experiments revealed that TNFAIP8 was a direct and functional target of MicroRNA-9 in GC and overexpression of MicroRNA-9 obviously down-regulated the expression of TNFAIP8, which was involved in the gastric carcinogenesis and cancer progression. CONCLUSION Our results suggested that MicroRNA-9-TNFAIP8 might represent a promising diagnostic biomarker for GC patients and could be a potential therapeutic target in the prevention and treatment of GC.
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Affiliation(s)
- Hong-Yu Gao
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical University, Xuzhou, China
| | - Fu-Chun Huo
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical University, Xuzhou, China
| | - Hai-Yan Wang
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Dong-Sheng Pei
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical University, Xuzhou, China.,Department of Pathology, Xuzhou Medical University, Xuzhou, China
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Fang Z, Zhang L, Liao Q, Wang Y, Yu F, Feng M, Xiang X, Xiong J. Regulation of TRIM24 by miR-511 modulates cell proliferation in gastric cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:17. [PMID: 28114950 PMCID: PMC5259882 DOI: 10.1186/s13046-017-0489-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 01/05/2017] [Indexed: 12/20/2022]
Abstract
Background Increasing evidence highlights the important roles of tripartite motif containing 24 (TRIM24) in tumor initiation and malignant progression in many tumors, including gastric cancer (GC). Although TRIM24 expression is remarkably upregulated during GC carcinogenesis, the molecular mechanisms underlying TRIM24 dysregulation remain unexplored. Methods In this study, miRNA target prediction tools were applied to explore miRNAs that potentially target TRIM24. Western blot and quantitative reverse-transcriptase PCR (qRT-PCR) were performed to detected TRIM24 and miR-511 expression in GC tissues and cell lines. Dual-luciferase reporter assay was utilized to validate if TRIM24 is a direct target gene of miR-511. CCK-8 assay, cell colony formation assay, EdU incorporation assay and cell cycle analysis were performed to determine whether miR-511-mediated regulation of TRIM24 could affect GC progression. Results In our study, miR-511 was found to be downregulated in GC and an inverse correlation was observed between TRIM24 and miR-511 expression in primary GC tissues and cell lines. Dual-luciferase reporter assay further verified TRIM24 is a direct target of miR-511. Functional assays showed miR-511 overexpression inhibited cell growth, colony formation ability and cell cycle progression. Conversely, inhibition of endogenous miR-511 promoted these phenotypes in GC cells. Moreover, reintroduction of TRIM24 rescued miR-511-induced inhibitory effects on GC cells. Furthermore, miR-511 elicits tumor-suppressive effects through inactivating PI3K/AKT and Wnt/β-catenin pathways by suppressing TRIM24. Conclusions Our results provide the new evidence supporting the tumor-suppressive role of miR-511 in GC by suppressing TRIM24, suggesting that this novel miR-511/TRIM24 axis is critical in the control of gastric cancer tumorigenesis. Electronic supplementary material The online version of this article (doi:10.1186/s13046-017-0489-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ziling Fang
- Department of Oncology, the First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, China
| | - Ling Zhang
- Department of Oncology, the First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, China
| | - Quan Liao
- Department of Oncology, the First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, China
| | - Yi Wang
- Department of Oncology, the First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, China
| | - Feng Yu
- Department of Oncology, the First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, China
| | - Miao Feng
- Department of Oncology, the First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, China
| | - Xiaojun Xiang
- Department of Oncology, the First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, China.
| | - Jianping Xiong
- Department of Oncology, the First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, China.
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Deng J, Lei W, Xiang X, Zhang L, Lei J, Gong Y, Song M, Wang Y, Fang Z, Yu F, Feng M, Sun Z, Chen J, Zhan Z, Xiong J. Cullin 4A (CUL4A), a direct target of miR-9 and miR-137, promotes gastric cancer proliferation and invasion by regulating the Hippo signaling pathway. Oncotarget 2017; 7:10037-50. [PMID: 26840256 PMCID: PMC4891102 DOI: 10.18632/oncotarget.7048] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 12/07/2015] [Indexed: 02/07/2023] Open
Abstract
Although Cullin 4A (CUL4A) is mutated or amplified in several human cancer types, its role in gastric cancer (GC) and the mechanisms underlying its regulation remain largely uncharacterized. In the present study, we report that the expression of CUL4A significantly correlated with the clinical stage of the tumor and lymph node metastasis, and survival rates were lower in GC patients with higher levels of CUL4A than in patients with lower CUL4A levels. The upregulation of CUL4A promoted GC cell proliferation and epithelial-mesenchymal transition (EMT) by downregulating LATS1-Hippo-YAP signaling. Knocking down CUL4A had the opposite effect in vitro and in vivo. Interestingly, CUL4A expression was inhibited by the microRNAs (miRNAs), miR-9 and miR-137, which directly targeted the 3′-UTR of CUL4A. Overexpression of miR-9 and miR-137 downregulated the CUL4A-LATS1-Hippo signaling pathway and suppressed GC cell proliferation and invasion in vitro. Taken together, our findings demonstrate that perturbations to miR-9/137-CUL4A-Hippo signaling contribute to gastric tumorigenesis, and suggest potential therapeutic targets for the future treatment of GC.
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Affiliation(s)
- Jun Deng
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Wan Lei
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Xiaojun Xiang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Ling Zhang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Jun Lei
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Yu Gong
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Meijiao Song
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Yi Wang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Ziling Fang
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Feng Yu
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Miao Feng
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Ze Sun
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Jun Chen
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Zhengyu Zhan
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
| | - Jianping Xiong
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, PR China
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Krawczyk P, Powrózek T, Olesiński T, Dmitruk A, Dziwota J, Kowalski D, Milanowski J. Evaluation of miR-506 and miR-4316 expression in early and non-invasive diagnosis of colorectal cancer. Int J Colorectal Dis 2017; 32:1057-1060. [PMID: 28405738 PMCID: PMC5486640 DOI: 10.1007/s00384-017-2814-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/06/2017] [Indexed: 02/07/2023]
Abstract
PURPOSE Examination of the entire colon by colonoscopy remains the golden standard for screening of colorectal cancer (CRC). However, patients are reluctant to perform invasive colonoscopies because of interference with their intimacy. Therefore, the potential use of non-invasive analysis of microRNAs expression in liquid biopsy as a novel biomarker for early CRC has investigated in several studies. In this study, we analyzed the expression of two novel microRNAs: miR-506 and miR-4316, which have never been examined in CRC. METHODS Plasma samples were collected from 56 patients (median age of 68 years) with operable colorectal cancer and from 70 healthy individuals (median age of 59 years). Expression of plasma microRNAs was evaluated by quantitative reverse transcription polymerase chain reaction using Eco real-time PCR device (Illumina, USA). RESULTS We found a significant elevated expression of both examined microRNAs in early CRC patients when compared to those in healthy individuals (p = 0.0054 for miR-506 and p = 0.0025 for miR-4316). The expression of miR-506 and miR-4316 did not depend on gender, age, disease stage, and tumor localization of CRC patients. ROC curve analysis showed that both examined microRNAs could differentiate early stage colorectal cancer from healthy individuals with 76.8% specificity and 60.7% sensitivity for miR-506 analysis and 76.8% specificity and 75% specificity for miR-4316 analysis. CONCLUSION Our study revealed that elevated expression of miR-506 and miR-4316 in peripheral blood were potential molecular markers for early colorectal cancer.
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Affiliation(s)
- Paweł Krawczyk
- 0000 0001 1033 7158grid.411484.cDepartment of Pneumonology, Oncology and Allergology, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland
| | - Tomasz Powrózek
- 0000 0001 1033 7158grid.411484.cDepartment of Pneumonology, Oncology and Allergology, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland
| | - Tomasz Olesiński
- Department of Oncological Gastroenterology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology in Warsaw, WK Roentgen 5, 02-781 Warsaw, Poland
| | - Adam Dmitruk
- Department of Oncological Gastroenterology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology in Warsaw, WK Roentgen 5, 02-781 Warsaw, Poland
| | - Joanna Dziwota
- 0000 0001 1033 7158grid.411484.cDepartment of Pneumonology, Oncology and Allergology, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland
| | - Dariusz Kowalski
- Department of Lung and Chest Tumor, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology in Warsaw, WK Roentgen 5, 02-781 Warsaw, Poland
| | - Janusz Milanowski
- 0000 0001 1033 7158grid.411484.cDepartment of Pneumonology, Oncology and Allergology, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland
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Ren K, Li T, Zhang W, Ren J, Li Z, Wu G. miR-199a-3p inhibits cell proliferation and induces apoptosis by targeting YAP1, suppressing Jagged1-Notch signaling in human hepatocellular carcinoma. J Biomed Sci 2016; 23:79. [PMID: 27832779 PMCID: PMC5103406 DOI: 10.1186/s12929-016-0295-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 11/03/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND miR-199a-3p was significantly downregulated in the majority of human hepatocellular carcinoma (HCC) tissues and HCC cell lines. Yes associated protein 1 (YAP1) was overexpressed in human HCC, which promoted HCC development and progression by upregulating Jagged1 and activating the Notch pathway. We searched potential targets of miR-199a-3p with DIANA, TargetScan and PicTar tools, and found that YAP1 is one of the potential targets. Based on these findings, we speculated that miR-199a-3p might suppress HCC growth by targeting YAP1, downregulating Jagged1 and suppressing the Notch pathway. RESULTS We determined the expression of miR-199a-3p and YAP1 by quantitative Real-Time PCR (qRT-PCR) and western blot assays, respectively, and found downregulation of miR-199a-3p and upregulation of YAP1 in HCC cell lines. Cell proliferation and apoptosis assays showed that miR-199a-3p suppresses HCC cell proliferation and promotes apoptosis, and knockdown of YAP1 has similar role. Furthermore, we verified that miR-199a-3p can directly target YAP1. We further investigated and confirmed that miR-199a-3p and YAP1 regulate HCC cell proliferation and apoptosis through Jagged1-Notch signaling. CONCLUSION miR-199a-3p targets YAP1, downregulates Jagged1 and suppresses the Notch signaling to inhibit HCC cell proliferation and promote apoptosis. These findings provide new insights into the mechanism by which miR-199a-3p suppresses HCC cell proliferation and induces apoptosis.
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Affiliation(s)
- Kewei Ren
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052 Henan People’s Republic of China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052 People’s Republic of China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052 People’s Republic of China
| | - Tengfei Li
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052 Henan People’s Republic of China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052 People’s Republic of China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052 People’s Republic of China
| | - Wenzhe Zhang
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052 Henan People’s Republic of China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052 People’s Republic of China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052 People’s Republic of China
| | - Jianzhuang Ren
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052 Henan People’s Republic of China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052 People’s Republic of China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052 People’s Republic of China
| | - Zhen Li
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052 Henan People’s Republic of China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052 People’s Republic of China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052 People’s Republic of China
| | - Gang Wu
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, 450052 Henan People’s Republic of China
- Interventional Institute of Zhengzhou University, Zhengzhou, 450052 People’s Republic of China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, 450052 People’s Republic of China
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Cheng RF, Wang J, Zhang JY, Sun L, Zhao YR, Qiu ZQ, Sun BC, Sun Y. MicroRNA-506 is up-regulated in the development of pancreatic ductal adenocarcinoma and is associated with attenuated disease progression. CHINESE JOURNAL OF CANCER 2016; 35:64. [PMID: 27371108 PMCID: PMC4930606 DOI: 10.1186/s40880-016-0128-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/22/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND MicroRNA-506 (miR-506) has been reported to function in several tumors as a tumor suppressor gene or oncogene. However, the expression and role of miR-506 in pancreatic ductal adenocarcinoma (PDAC) remains unclear. In this study, we aimed to evaluate the phenotype of miR-506 in PDAC. METHODS Using miRNA in situ hybridization, we examined the expression of miR-506 in 113 PDACs and 87 paired normal pancreatic tissues. We evaluated miR-506 expression in PDAC cells, normal pancreatic ducts, and acinus/islands, and we analyzed the associations between miR-506 expression and the clinicopathologic characteristics of PDAC patients. RESULTS miR-506 expression was higher in PDAC than in matched normal pancreatic ductal cells (P < 0.001). On the other hand, the combined group of well and moderately differentiated PDACs showed higher levels of miR-506 than the poorly differentiated ones (P = 0.023). Moreover, miR-506 expression was negatively associated with pathologic T category (P = 0.004) and lymph node metastasis (P = 0.033), suggesting that miR-506 might inhibit the progression of PDAC. CONCLUSIONS Our results suggest that miR-506 either plays a role as an oncogene in the tumorigenesis and a tumor suppressor in the progression or serves as a house-keeping, tumor-suppressing miRNA, whose expression can be activated by oncogenic signals in early development to hinder the progression of PDAC.
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Affiliation(s)
- Run-Fen Cheng
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, P. R. China
| | - Jian Wang
- Department of Pancreatic Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, P. R. China
| | - Jing-Yi Zhang
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, P. R. China
| | - Lin Sun
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, P. R. China
| | - Yan-Rui Zhao
- Department of Epidemiology and Biostatistics, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, P. R. China
| | - Zhi-Qiang Qiu
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, P. R. China
| | - Bao-Cun Sun
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, P. R. China.,Department of Pathology, Tianjin Medical University, Tianjin, 300070, P. R. China
| | - Yan Sun
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, P. R. China.
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McKey J, Martire D, de Santa Barbara P, Faure S. LIX1 regulates YAP1 activity and controls the proliferation and differentiation of stomach mesenchymal progenitors. BMC Biol 2016; 14:34. [PMID: 27125505 PMCID: PMC4848777 DOI: 10.1186/s12915-016-0257-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 04/18/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Smooth muscle cell (SMC) plasticity maintains the balance between differentiated SMCs and proliferative mesenchymal progenitors, crucial for muscular tissue homeostasis. Studies on the development of mesenchymal progenitors into SMCs have proven useful in identifying molecular mechanisms involved in digestive musculature plasticity in physiological and pathological conditions. RESULTS Here, we show that Limb Expression 1 (LIX1) molecularly defines the population of mesenchymal progenitors in the developing stomach. Using in vivo functional approaches in the chick embryo, we demonstrate that LIX1 is a key regulator of stomach SMC development. We show that LIX1 is required for stomach SMC determination to regulate the expression of the pro-proliferative gene YAP1 and mesenchymal cell proliferation. However, as stomach development proceeds, sustained LIX1 expression has a negative impact on further SMC differentiation and this is associated with a decrease in YAP1 activity. CONCLUSIONS We demonstrate that expression of LIX1 must be tightly regulated to allow fine-tuning of the transcript levels and state of activation of the pro-proliferative transcriptional coactivator YAP1 to regulate proliferation rates of stomach mesenchymal progenitors and their differentiation. Our data highlight dual roles for LIX1 and YAP1 and provide new insights into the regulation of cell density-dependent proliferation, which is essential for the development and homeostasis of organs.
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Affiliation(s)
- Jennifer McKey
- PhyMedExp, INSERM U1046, CNRS UMR 9214, University of Montpellier, 34295, Montpellier, France
| | - Delphine Martire
- PhyMedExp, INSERM U1046, CNRS UMR 9214, University of Montpellier, 34295, Montpellier, France
| | - Pascal de Santa Barbara
- PhyMedExp, INSERM U1046, CNRS UMR 9214, University of Montpellier, 34295, Montpellier, France
| | - Sandrine Faure
- PhyMedExp, INSERM U1046, CNRS UMR 9214, University of Montpellier, 34295, Montpellier, France.
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ZHANG MINGTING, XU QINGLI, YAN SHUFEN, LI ZHIGANG, YAN WEI, JIA XIAOJING. Suppression of forkhead box Q1 by microRNA-506 represses the proliferation and epithelial-mesenchymal transition of cervical cancer cells. Oncol Rep 2016; 35:3106-14. [DOI: 10.3892/or.2016.4651] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 12/17/2015] [Indexed: 11/05/2022] Open
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Li Q, Peng J, Li X, Leng A, Liu T. miR-449a targets Flot2 and inhibits gastric cancer invasion by inhibiting TGF-β-mediated EMT. Diagn Pathol 2015; 10:202. [PMID: 26576674 PMCID: PMC4650491 DOI: 10.1186/s13000-015-0435-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 10/17/2015] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Flot2, a highly conserved protein of the SPFH domain containing proteins family, has recently been identified as oncogene to be involved in the tumorigenesis and metastasis of several cancers including gastric cancer. However, the underlying molecular mechanism of Flot2 in gastric cancer (GC) is largely unknown. METHODS qRT-PCR and western blot was performed to detect miR-449a and Flot2 expression in GC cell lines and Normal human gastric epithelial cells. Then, luciferase reporter assay was used to elucidate whether Flot2 is a target gene of miR-449a. Finally, the roles and mechanism of miR-449a in regulation of tumor invasion were further investigated. RESULTS In this study, miR-449a expression was downregulated and Flot2 was upregulated in all GC cell lines as compared with that in GES-1. luciferase reporter assay identified Flot2 as a novel direct target of miR-449a. miR-449a regulated GC cell invasion by suppressing Flot2 expression. Expression analysis of a set of epithelial-mesenchymal transition (EMT) markers showed that miR-449a reduced the expression of mesenchymal markers (vimentin and N-cadherin) and induced the expression of epithelial marker (E-cadherin), which was consistent with silenced Flot2. Moreover, Flot2 is necessary for TGF-β-induced EMT in GC cells. CONCLUSIONS Our results demonstrated that miR-449a suppressed Flot2 expression results in decreased cell invasion through repressing TGF-β-mediated-EMT, and provides a new theoretical basis to further investigate miR-449a-regulated Flot2 as a potential biomarker and a promising approach for GC treatment.
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Affiliation(s)
- Qian Li
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China.
| | - Jie Peng
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China.
| | - Xinhua Li
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China.
| | - Aimin Leng
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China.
| | - Ting Liu
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China.
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Chen Z, Liu S, Tian L, Wu M, Ai F, Tang W, Zhao L, Ding J, Zhang L, Tang A. miR-124 and miR-506 inhibit colorectal cancer progression by targeting DNMT3B and DNMT1. Oncotarget 2015; 6:38139-50. [PMID: 26497367 PMCID: PMC4741989 DOI: 10.18632/oncotarget.5709] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 10/05/2015] [Indexed: 12/31/2022] Open
Abstract
miR-124 and miR-506 are reportedly down-regulated and associated with tumor progression in many cancers, but little is known about their intrinsic regulatory mechanisms in colorectal cancer (CRC). In this study, we found that the miR-124 and miR-506 levels were significantly lower in human CRC tissues than in controls, as indicated by qRT-PCR and in situ hybridization histochemistry. We also found that the overexpression of miR-124 or miR-506 inhibited tumor cell progression and increased sensitivity to chemotherapy in vitro. Increased miR-124 or miR-506 expression also inhibited tumor cell proliferation and invasion in vivo. Luciferase reporter assays and western blotting were used to determine the association between miR-124, miR-506 and their target genes, DNMTs. We further identified that miR-124 and miR-506 directly targeted DNMT3B and indirectly targeted DNMT1. The overexpression of miR-124 and miR-506 reduced global DNA methylation and restored the expression of E-cadherin, MGMT and P16. In conclusion, our data showed that miR-124 and miR-506 inhibit progression and increase sensitivity to chemotherapy by targeting DNMT3B and DNMT1 in CRC. These findings may provide novel avenues for the development of targeted therapies.
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Affiliation(s)
- Zhiheng Chen
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shaojun Liu
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Tian
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Minghao Wu
- Department of Gastroenterology, The Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - Feiyan Ai
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Wuliang Tang
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lian Zhao
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Juan Ding
- Department of Oncology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Liyang Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Anliu Tang
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
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Application of plasma circulating microRNA-448, 506, 4316, and 4478 analysis for non-invasive diagnosis of lung cancer. Tumour Biol 2015; 37:2049-55. [PMID: 26341493 DOI: 10.1007/s13277-015-3971-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 08/21/2015] [Indexed: 10/25/2022] Open
Abstract
Aberrant expression of microRNAs (miRNAs) in cancer patients compared to healthy people as well as possibility of detection of these molecules in blood samples make them potential biomarkers of various cancers. In the present study, we investigated the potential role of four miRNAs as lung cancer (LC) biomarkers: miRNA-448, 506, 4316, and 4478. Using quantitative reverse transcription polymerase chain reaction (qRT-PCR) technique, we assessed expression of studied miRNAs in plasma samples of 90 lung cancer patients and 85 healthy individuals. Receiver operating curves (ROC) with area under the curve (AUC) were used to assess accuracy of studied miRNAs for distinguishing LC patients from healthy individuals. The miRNA-448 and 4478 were significantly overexpressed in lung cancer patients compared to healthy people and these two molecules were qualified for further analysis. Combination ROC analysis of both biomarkers reached 90 % of sensitivity and 76.3 % of specificity (AUC = 0.896) for distinguishing operable (stage IA-IIB) non-small cell lung cancer (NSCLC) patients from healthy subjects. Our results suggest that the examination of miRNAs could be considered as potential lung cancer, non-invasive biomarkers.
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