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Orzeł-Gajowik K, Milewski K, Zielińska M. miRNA-ome plasma analysis unveils changes in blood-brain barrier integrity associated with acute liver failure in rats. Fluids Barriers CNS 2023; 20:92. [PMID: 38066639 PMCID: PMC10709860 DOI: 10.1186/s12987-023-00484-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/30/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Hepatic encephalopathy (HE) symptoms associated with liver insufficiency are linked to the neurotoxic effects of ammonia and other toxic metabolites reaching the brain via the blood-brain barrier (BBB), further aggravated by the inflammatory response. Cumulative evidence documents that the non-coding single-stranded RNAs, micro RNAs (miRs) control the BBB functioning. However, miRs' involvement in BBB breakdown in HE is still underexplored. Here, we hypothesized that in rats with acute liver failure (ALF) or rats subjected to hyperammonemia, altered circulating miRs affect BBB composing proteins. METHODS Transmission electron microscopy was employed to delineate structural alterations of the BBB in rats with ALF (thioacetamide (TAA) intraperitoneal (ip.) administration) or hyperammonemia (ammonium acetate (OA) ip. administration). The BBB permeability was determined with Evans blue dye and sodium fluorescein assay. Plasma MiRs were profiled by Next Generation Sequencing (NGS), followed by in silico analysis. Selected miRs, verified by qRT-PCR, were examined in cultured rat brain endothelial cells. Targeted protein alterations were elucidated with immunofluorescence, western blotting, and, after selected miR mimics transfection, through an in vitro resistance measurement. RESULTS Changes in BBB structure and increased permeability were observed in the prefrontal cortex of TAA rats but not in the brains of OA rats. The NGS results revealed divergently changed miRNA-ome in the plasma of both rat models. The in silico analysis led to the selection of miR-122-5p and miR-183-5p with their target genes occludin and integrin β1, respectively, as potential contributors to BBB alterations. Both proteins were reduced in isolated brain vessels and cortical homogenates in TAA rats. We documented in cultured primary brain endothelial cells that ammonia alone and, in combination with TNFα increases the relative expression of NGS-selected miRs with a less pronounced effect of TNFα when added alone. The in vitro study also confirmed miR-122-5p-dependent decrease in occludin and miR-183-5p-related reduction in integrin β1 expression. CONCLUSION This work identified, to our knowledge for the first time, potential functional links between alterations in miRs residing in brain endothelium and BBB dysfunction in ALF.
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Affiliation(s)
- Karolina Orzeł-Gajowik
- Department of Neurotoxicology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego St. 5, 02-106, Warsaw, Poland
| | - Krzysztof Milewski
- Department of Neurotoxicology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego St. 5, 02-106, Warsaw, Poland
- Laboratory of Cellular Metabolism, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Pasteura St. 3, 02-093, Warsaw, Poland
| | - Magdalena Zielińska
- Department of Neurotoxicology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego St. 5, 02-106, Warsaw, Poland.
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2
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Rodríguez‐García Y, Martínez‐Moreno M, Alonso L, Sánchez‐Vencells A, Arranz A, Dagà‐Millán R, Sevilla‐Movilla S, Valeri A, Martínez‐López J, Teixidó J. Regulation of miRNA expression by α4β1 integrin-dependent multiple myeloma cell adhesion. EJHAEM 2023; 4:631-638. [PMID: 37601846 PMCID: PMC10435698 DOI: 10.1002/jha2.756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 08/22/2023]
Abstract
The α4β1 integrin regulates the trafficking of multiple myeloma (MM) cells and contributes to MM disease progression. MicroRNAs (miRNAs) can have both tumor suppressor and oncogenic roles and thus are key controllers of tumor evolution, and have been associated with different phases of MM pathogenesis. Using small RNAseq analysis, we show here that α4β1-dependent MM cell adhesion regulates the expression of forty different miRNAs, therefore expanding our current view of the α4β1 involvement in MM cell biology. Specific upregulation of miR-324-5p and miR-331-3p in cells attached to α4β1 ligands was confirmed upon silencing the α4 integrin subunit, and their increased levels found to be dependent on Erk1/2- and PI3K-Akt-, but not Src-dependent signaling. Enhanced miR-324-5p expression upon α4β1-mediated MM cell adhesion aimed the hedgehog (Hh) component SMO, revealing that the miR-324-5p-SMO module represents a α4β1-regulated pathway that could control Hh-dependent cellular responses in myeloma. Our results open new therapy research avenues around the α4β1 contribution to MM progression that deserve to be investigated.
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Affiliation(s)
- Yaiza Rodríguez‐García
- Department of Molecular BiomedicineCentro de Investigaciones Biológicas Margarita Salas (CSIC)MadridSpain
| | - Mónica Martínez‐Moreno
- Department of Molecular BiomedicineCentro de Investigaciones Biológicas Margarita Salas (CSIC)MadridSpain
| | - Lola Alonso
- Genetic and Molecular Epidemiology GroupSpanish National Cancer Research Centre and CIBERONCMadridSpain
| | - Anna Sánchez‐Vencells
- Department of Molecular BiomedicineCentro de Investigaciones Biológicas Margarita Salas (CSIC)MadridSpain
| | - Alicia Arranz
- Department of Molecular BiomedicineCentro de Investigaciones Biológicas Margarita Salas (CSIC)MadridSpain
| | - Roger Dagà‐Millán
- Department of Molecular BiomedicineCentro de Investigaciones Biológicas Margarita Salas (CSIC)MadridSpain
| | - Silvia Sevilla‐Movilla
- Department of Molecular BiomedicineCentro de Investigaciones Biológicas Margarita Salas (CSIC)MadridSpain
| | - Antonio Valeri
- Department of Translational HematologyCNIO‐ISCIII, CIBERONCHospital Universitario 12 de Octubre, imas12Universidad ComplutenseMadridSpain
| | - Joaquin Martínez‐López
- Department of Translational HematologyCNIO‐ISCIII, CIBERONCHospital Universitario 12 de Octubre, imas12Universidad ComplutenseMadridSpain
| | - Joaquin Teixidó
- Department of Molecular BiomedicineCentro de Investigaciones Biológicas Margarita Salas (CSIC)MadridSpain
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3
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Verhoeff TJ, Holloway AF, Dickinson JL. Non-coding RNA regulation of integrins and their potential as therapeutic targets in cancer. Cell Oncol (Dordr) 2023; 46:239-250. [PMID: 36512308 PMCID: PMC10060301 DOI: 10.1007/s13402-022-00752-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Integrins are integral to cell signalling and management of the extracellular matrix, and exquisite regulation of their expression is essential for a variety of cell signalling pathways, whilst disordered regulation is a key driver of tumour progression and metastasis. Most recently non-coding RNAs in the form of micro-RNA (miRNA) and long non-coding RNA (lncRNA) have emerged as a key mechanism by which tissue dependent gene expression is controlled. Whilst historically these molecules have been poorly understood, advances in 'omic' technologies and a greater understanding of non-coding regions of the genome have revealed that non-coding RNAs make up a large proportion of the transcriptome. CONCLUSIONS AND PERSPECTIVES This review examines the regulation of integrin genes by ncRNAs, provides and overview of their mechanism of action and highlights how exploitation of these discoveries is informing the development of novel chemotherapeutic agents in the treatment of cancer. MiRNA molecules have been the most extensively characterised and negatively regulate most integrin genes, classically regulating genes through binding to recognition sequences in the mRNA 3'-untranslated regions of gene transcripts. LncRNA mechanisms of action are now being elucidated and appear to be more varied and complex, and may counter miRNA molecules, directly engage integrin mRNA transcripts, and guide or block both transcription factors and epigenetic machinery at integrin promoters or at other points in integrin regulation. Integrins as therapeutic targets are of enormous interest given their roles as oncogenes in a variety of tumours, and emerging therapeutics mimicking ncRNA mechanisms of action are already being trialled.
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Affiliation(s)
- Tristan Joseph Verhoeff
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia
| | - Adele F Holloway
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia
| | - Joanne L Dickinson
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart (Tasmania), Australia.
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4
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Li X, Michels BE, Tosun OE, Jung J, Kappes J, Ibing S, Nataraj NB, Sahay S, Schneider M, Wörner A, Becki C, Ishaque N, Feuerbach L, Heßling B, Helm D, Will R, Yarden Y, Müller-Decker K, Wiemann S, Körner C. 5’isomiR-183-5p|+2 elicits tumor suppressor activity in a negative feedback loop with E2F1. J Exp Clin Cancer Res 2022; 41:190. [PMID: 35655310 PMCID: PMC9161486 DOI: 10.1186/s13046-022-02380-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/04/2022] [Indexed: 12/24/2022] Open
Abstract
Background MicroRNAs (miRNAs) and isomiRs play important roles in tumorigenesis as essential regulators of gene expression. 5’isomiRs exhibit a shifted seed sequence compared to the canonical miRNA, resulting in different target spectra and thereby extending the phenotypic impact of the respective common pre-miRNA. However, for most miRNAs, expression and function of 5’isomiRs have not been studied in detail yet. Therefore, this study aims to investigate the functions of miRNAs and their 5’isomiRs. Methods The expression of 5’isomiRs was assessed in The Cancer Genome Atlas (TCGA) breast cancer patient dataset. Phenotypic effects of miR-183 overexpression in triple-negative breast cancer (TNBC) cell lines were investigated in vitro and in vivo by quantifying migration, proliferation, tumor growth and metastasis. Direct targeting of E2F1 by miR-183-5p|+2 was validated with a 3’UTR luciferase assay and linked to the phenotypes of isomiR overexpression. Results TCGA breast cancer patient data indicated that three variants of miR-183-5p are highly expressed and upregulated, namely miR-183-5p|0, miR-183-5p|+1 and miR-183-5p|+2. However, TNBC cell lines displayed reduced proliferation and invasion upon overexpression of pre-miR-183. While invasion was reduced individually by all three isomiRs, proliferation and cell cycle progression were specifically inhibited by overexpression of miR-183-5p|+2. Proteomic analysis revealed reduced expression of E2F target genes upon overexpression of this isomiR, which could be attributed to direct targeting of E2F1, specifically by miR-183-5p|+2. Knockdown of E2F1 partially phenocopied the effect of miR-183-5p|+2 overexpression on cell proliferation and cell cycle. Gene set enrichment analysis of TCGA and METABRIC patient data indicated that the activity of E2F strongly correlated with the expression of miR-183-5p, suggesting transcriptional regulation of the miRNA by a factor of the E2F family. Indeed, in vitro, expression of miR-183-5p was regulated by E2F1. Hence, miR-183-5p|+2 directly targeting E2F1 appears to be part of a negative feedback loop potentially fine-tuning its activity. Conclusions This study demonstrates that 5’isomiRs originating from the same arm of the same pre-miRNA (i.e. pre-miR-183-5p) may exhibit different functions and thereby collectively contribute to the same phenotype. Here, one of three isomiRs was shown to counteract expression of the pre-miRNA by negatively regulating a transcriptional activator (i.e. E2F1). We speculate that this might be part of a regulatory mechanism to prevent uncontrolled cell proliferation, which is disabled during cancer progression. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13046-022-02380-8.
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Greene KM, Stamer WD, Liu Y. The role of microRNAs in glaucoma. Exp Eye Res 2022; 215:108909. [PMID: 34968473 PMCID: PMC8923961 DOI: 10.1016/j.exer.2021.108909] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/28/2021] [Accepted: 12/20/2021] [Indexed: 02/03/2023]
Abstract
In this review, we aim to provide a comprehensive summary of the various microRNAs (miRNAs) shown to be involved in glaucoma and intraocular pressure regulation. miRNAs are short, single-stranded, and noncoding RNAs that regulate gene expression in a number of physiological conditions and human diseases, including glaucoma. Numerous miRNAs display differential expression in glaucoma-affected tissues, such as aqueous humor, tears, trabecular meshwork, and retina analyzed from patients and animal models, suggesting their potential involvement in glaucoma pathogenesis. Several studies summarized here have also investigated the challenge of delivering intact miRNAs to target tissues in order to develop miRNA-based glaucoma therapies. We extend these reports by conducting an additional layer of analysis that integrates the interaction between glaucoma-related miRNAs and glaucoma-associated genes. We conclude with a comprehensive discussion of the therapeutic potential of miRNAs, the cellular pathways that link these miRNAs together, and the most promising miRNAs for future glaucoma research.
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Affiliation(s)
- Karah M. Greene
- Department of Cellular Biology and Anatomy, Augusta University, 1460 Laney Walker Blvd CB1101, Augusta, GA 30912, United States
| | - W. Daniel Stamer
- Departments of Ophthalmology and Biomedical Engineering, Duke University, 2351 Erwin Rd, Durham, NC 27710, United States
| | - Yutao Liu
- Department of Cellular Biology and Anatomy, Augusta University, 1460 Laney Walker Blvd CB1101, Augusta, GA 30912, United States.,Center for Biotechnology and Genomic Medicine, Augusta University, 1120 15th Street, Augusta, GA 30912, United States,James and Jean Culver Vision Discovery Institute, Augusta University, 1460 Laney Walker Blvd CB1101, Augusta, GA 30912, United States
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6
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Saverimuttu SCC, Kramarz B, Rodríguez-López M, Garmiri P, Attrill H, Thurlow KE, Makris M, de Miranda Pinheiro S, Orchard S, Lovering RC. Gene Ontology curation of the blood-brain barrier to improve the analysis of Alzheimer's and other neurological diseases. Database (Oxford) 2021; 2021:baab067. [PMID: 34697638 PMCID: PMC8546235 DOI: 10.1093/database/baab067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 09/07/2021] [Accepted: 10/06/2021] [Indexed: 01/08/2023]
Abstract
The role of the blood-brain barrier (BBB) in Alzheimer's and other neurodegenerative diseases is still the subject of many studies. However, those studies using high-throughput methods have been compromised by the lack of Gene Ontology (GO) annotations describing the role of proteins in the normal function of the BBB. The GO Consortium provides a gold-standard bioinformatics resource used for analysis and interpretation of large biomedical data sets. However, the GO is also used by other research communities and, therefore, must meet a variety of demands on the breadth and depth of information that is provided. To meet the needs of the Alzheimer's research community we have focused on the GO annotation of the BBB, with over 100 transport or junctional proteins prioritized for annotation. This project has led to a substantial increase in the number of human proteins associated with BBB-relevant GO terms as well as more comprehensive annotation of these proteins in many other processes. Furthermore, data describing the microRNAs that regulate the expression of these priority proteins have also been curated. Thus, this project has increased both the breadth and depth of annotation for these prioritized BBB proteins. Database URLhttps://www.ebi.ac.uk/QuickGO/.
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Affiliation(s)
- Shirin C C Saverimuttu
- Functional Gene Annotation, Pre-clinical and Fundamental Science, Institute of Cardiovascular Science, University College London (UCL), Rayne Building, 5 University Street, London WC1E 6JF, UK
- European Molecular Biology Laboratory, Wellcome Genome Campus, European Bioinformatics Institute (EMBL-EBI), Hinxton, Cambridge CB10 1ST, UK
| | - Barbara Kramarz
- Functional Gene Annotation, Pre-clinical and Fundamental Science, Institute of Cardiovascular Science, University College London (UCL), Rayne Building, 5 University Street, London WC1E 6JF, UK
| | - Milagros Rodríguez-López
- European Molecular Biology Laboratory, Wellcome Genome Campus, European Bioinformatics Institute (EMBL-EBI), Hinxton, Cambridge CB10 1ST, UK
| | - Penelope Garmiri
- European Molecular Biology Laboratory, Wellcome Genome Campus, European Bioinformatics Institute (EMBL-EBI), Hinxton, Cambridge CB10 1ST, UK
| | - Helen Attrill
- FlyBase, Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3DY, UK
| | - Katherine E Thurlow
- Functional Gene Annotation, Pre-clinical and Fundamental Science, Institute of Cardiovascular Science, University College London (UCL), Rayne Building, 5 University Street, London WC1E 6JF, UK
| | - Marios Makris
- Functional Gene Annotation, Pre-clinical and Fundamental Science, Institute of Cardiovascular Science, University College London (UCL), Rayne Building, 5 University Street, London WC1E 6JF, UK
| | - Sandra de Miranda Pinheiro
- Functional Gene Annotation, Pre-clinical and Fundamental Science, Institute of Cardiovascular Science, University College London (UCL), Rayne Building, 5 University Street, London WC1E 6JF, UK
| | - Sandra Orchard
- European Molecular Biology Laboratory, Wellcome Genome Campus, European Bioinformatics Institute (EMBL-EBI), Hinxton, Cambridge CB10 1ST, UK
| | - Ruth C Lovering
- Functional Gene Annotation, Pre-clinical and Fundamental Science, Institute of Cardiovascular Science, University College London (UCL), Rayne Building, 5 University Street, London WC1E 6JF, UK
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Nicoară SD, Brie I, Jurj A, Sorițău O. The Future of Stem Cells and Their Derivates in the Treatment of Glaucoma. A Critical Point of View. Int J Mol Sci 2021; 22:ijms222011077. [PMID: 34681739 PMCID: PMC8540760 DOI: 10.3390/ijms222011077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/07/2021] [Accepted: 10/09/2021] [Indexed: 12/24/2022] Open
Abstract
This review focuses on the clinical translation of preclinical studies, especially those that have used stem cells in the treatment of glaucoma, with an emphasis on optic nerve regeneration. The studies referred to in the review aim to treat optic nerve atrophy, while cell therapies targeting other sites in the eye, such as the trabecular meshwork, have not been addressed. Such complex and varied pathophysiological mechanisms that lead to glaucoma may explain the fact that although stem cells have a high capacity of neuronal regeneration, the treatments performed did not have the expected results and the promise offered by animal studies was not achieved. By analyzing the facts associated with failure, important lessons are to be learned: the type of stem cells that are used, the route of administration, the selection of patients eligible for these treatments, additional therapies that support stem cells transplantation and their mode of action, methods of avoiding the host’s immune response. Many of these problems could be solved using exosomes (EV), but also miRNA, which allows more targeted approaches with minimal side effects.
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Affiliation(s)
- Simona Delia Nicoară
- Department of Ophthalmology, “Iuliu Hatieganu” University of Medicine and Pharmacy, 8 Victor Babeș Street, 400012 Cluj-Napoca, Romania
- Clinic of Ophthalmology, Emergency County Hospital, 3–5 Clinicilor Street, 40006 Cluj-Napoca, Romania
- Correspondence: or ; Tel.: +40-264592771
| | - Ioana Brie
- “Ion Chiricuță” Institute of Oncology, Laboratory of Cell Biology and Radiobiology, 34–36 Republicii Street, 400010 Cluj-Napoca, Romania; (I.B.); (O.S.)
| | - Ancuța Jurj
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 8 Victor Babeș Street, 400012 Cluj-Napoca, Romania;
| | - Olga Sorițău
- “Ion Chiricuță” Institute of Oncology, Laboratory of Cell Biology and Radiobiology, 34–36 Republicii Street, 400010 Cluj-Napoca, Romania; (I.B.); (O.S.)
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8
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Grzywa TM, Klicka K, Włodarski PK. Regulators at Every Step-How microRNAs Drive Tumor Cell Invasiveness and Metastasis. Cancers (Basel) 2020; 12:E3709. [PMID: 33321819 PMCID: PMC7763175 DOI: 10.3390/cancers12123709] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023] Open
Abstract
Tumor cell invasiveness and metastasis are the main causes of mortality in cancer. Tumor progression is composed of many steps, including primary tumor growth, local invasion, intravasation, survival in the circulation, pre-metastatic niche formation, and metastasis. All these steps are strictly controlled by microRNAs (miRNAs), small non-coding RNA that regulate gene expression at the post-transcriptional level. miRNAs can act as oncomiRs that promote tumor cell invasion and metastasis or as tumor suppressor miRNAs that inhibit tumor progression. These miRNAs regulate the actin cytoskeleton, the expression of extracellular matrix (ECM) receptors including integrins and ECM-remodeling enzymes comprising matrix metalloproteinases (MMPs), and regulate epithelial-mesenchymal transition (EMT), hence modulating cell migration and invasiveness. Moreover, miRNAs regulate angiogenesis, the formation of a pre-metastatic niche, and metastasis. Thus, miRNAs are biomarkers of metastases as well as promising targets of therapy. In this review, we comprehensively describe the role of various miRNAs in tumor cell migration, invasion, and metastasis.
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Affiliation(s)
- Tomasz M. Grzywa
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (T.M.G.); (K.K.)
- Doctoral School, Medical University of Warsaw, 02-091 Warsaw, Poland
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Klaudia Klicka
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (T.M.G.); (K.K.)
- Doctoral School, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Paweł K. Włodarski
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (T.M.G.); (K.K.)
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9
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Regulators at Every Step—How microRNAs Drive Tumor Cell Invasiveness and Metastasis. Cancers (Basel) 2020. [DOI: 10.3390/cancers12123709
expr 991289423 + 939431153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Tumor cell invasiveness and metastasis are the main causes of mortality in cancer. Tumor progression is composed of many steps, including primary tumor growth, local invasion, intravasation, survival in the circulation, pre-metastatic niche formation, and metastasis. All these steps are strictly controlled by microRNAs (miRNAs), small non-coding RNA that regulate gene expression at the post-transcriptional level. miRNAs can act as oncomiRs that promote tumor cell invasion and metastasis or as tumor suppressor miRNAs that inhibit tumor progression. These miRNAs regulate the actin cytoskeleton, the expression of extracellular matrix (ECM) receptors including integrins and ECM-remodeling enzymes comprising matrix metalloproteinases (MMPs), and regulate epithelial–mesenchymal transition (EMT), hence modulating cell migration and invasiveness. Moreover, miRNAs regulate angiogenesis, the formation of a pre-metastatic niche, and metastasis. Thus, miRNAs are biomarkers of metastases as well as promising targets of therapy. In this review, we comprehensively describe the role of various miRNAs in tumor cell migration, invasion, and metastasis.
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10
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Kang M, Lee S, Lee D, Kim S. Learning Cell-Type-Specific Gene Regulation Mechanisms by Multi-Attention Based Deep Learning With Regulatory Latent Space. Front Genet 2020; 11:869. [PMID: 33133123 PMCID: PMC7561362 DOI: 10.3389/fgene.2020.00869] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 07/16/2020] [Indexed: 12/13/2022] Open
Abstract
Epigenetic gene regulation is a major control mechanism of gene expression. Most existing methods for modeling control mechanisms of gene expression use only a single epigenetic marker and very few methods are successful in modeling complex mechanisms of gene regulations using multiple epigenetic markers on transcriptional regulation. In this paper, we propose a multi-attention based deep learning model that integrates multiple markers to characterize complex gene regulation mechanisms. In experiments with 18 cell line multi-omics data, our proposed model predicted the gene expression level more accurately than the state-of-the-art model. Moreover, the model successfully revealed cell-type-specific gene expression control mechanisms. Finally, the model was used to identify genes enriched for specific cell types in terms of their functions and epigenetic regulation.
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Affiliation(s)
- Minji Kang
- Bioinformatics Institute, Seoul National University, Seoul, South Korea
| | - Sangseon Lee
- Bioinformatics Institute, Seoul National University, Seoul, South Korea
| | - Dohoon Lee
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, South Korea
| | - Sun Kim
- Bioinformatics Institute, Seoul National University, Seoul, South Korea.,Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, South Korea.,Department of Computer Science and Engineering, Institute of Engineering Research, Seoul National University, Seoul, South Korea
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11
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Moschos MM, Dettoraki M, Karekla A, Lamprinakis I, Damaskos C, Gouliopoulos N, Tibilis M, Gazouli M. Polymorphism analysis of miR182 and CDKN2B genes in Greek patients with primary open angle glaucoma. PLoS One 2020; 15:e0233692. [PMID: 32492046 PMCID: PMC7269255 DOI: 10.1371/journal.pone.0233692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 05/10/2020] [Indexed: 12/28/2022] Open
Abstract
Glaucoma is a progressive optic neuropathy resulting from retinal ganglion cells death; it represents one of the leading causes of irreversible blindness worldwide. Although, primary open angle glaucoma (POAG) is the most common type of the disease, the pathogenesis of POAG and the genetic factors contributing to disease development remain poorly understood. The aim of this study was to investigate whether the polymorphisms rs76481776 in miR182 gene and rs3217992 in cyclin-dependent kinase inhibitor-2B (CDKN2B) gene are risk factors for POAG in a series of patients of Greek origin. A case-control study was conducted including 120 patients with POAG and 113 unaffected healthy controls of Greek origin, surveyed for polymorphisms with potential correlation to POAG. DNA from each individual was tested for the miR182 rs76481776 and CDKN2B rs3217992 polymorphisms. Regarding the miR182 rs76481776 polymorphism, the T allele occurred with significantly higher frequency in POAG patients compared to controls (OR: 2.62, 95% CI: 1.56-4.39; p = 0.0002). The CDKN2B rs3217992 A allele frequency was found significantly increased in POAG patients compared to healthy individuals (OR: 1.72, 95% CI: 1.18-2.49; p = 0.005). Therefore, both rs76481776 polymorphism in miR182 gene and rs3217992 polymorphism in CDKN2B gene seem to be associated with the development of POAG in a Greek population. The carriers of the T allele of rs76481776 in miR182 and the carriers of the A allele of rs3217992 in CDKN2B have an increased risk of developing POAG.
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Affiliation(s)
- Marilita M. Moschos
- 1st Department of Ophthalmology, "G. Gennimatas" General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- * E-mail:
| | - Maria Dettoraki
- 1st Department of Ophthalmology, "G. Gennimatas" General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Aggela Karekla
- Department of Ophthalmology, “Evangelismos” General Hospital, Athens, Greece
| | - Ioannis Lamprinakis
- Department of Ophthalmology, “Evangelismos” General Hospital, Athens, Greece
| | - Christos Damaskos
- Second Department of Propedeutic Surgery, “Laiko” General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Gouliopoulos
- 1st Department of Ophthalmology, "G. Gennimatas" General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Marios Tibilis
- 1st Department of Ophthalmology, "G. Gennimatas" General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Gazouli
- Department of Basic Medical Sciences, Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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12
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Cao D, Di M, Liang J, Shi S, Tan Q, Wang Z. MicroRNA-183 in Cancer Progression. J Cancer 2020; 11:1315-1324. [PMID: 32047538 PMCID: PMC6995398 DOI: 10.7150/jca.39044] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/16/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNA-183(miR-183) is abnormally expressed in many kinds of tumors. It participates in the initiation and development of tumors. There are many pathways regulate the expression of miR-183. The action mechanism of miR-183 in cancer is very extensive, and contradictory conclusions are often drawn. It was upregulated in 18 kinds of cancer, downregulated in 6 kinds of cancer. In addition, there are seven types of cancer, both upregulated and downregulated reports can be found. Evidence showed that miR-183 can not only directly play the role of oncogene or antioncogene, but also regulate the expression of other oncogene or antioncogene in different cancer types. In this review, we discuss the regulator of miR-183 and summarized the expression of miR-183 in different cancers. We also counted the target genes of miR-183 and the functional roles they play. Furthermore, we focused on the roles of miR-183 in cell migration, cell invasion, epithelial-mesenchymal transition (EMT) and microangiogenesis, which play the most important roles in cancer processes. It sheds light on the likely reasons why miR-183 plays different roles in various cancers. In addition, miR-183 and its downstream effectors have the potential to be promising prognostic markers and therapeutic targets in cancer.
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Affiliation(s)
- Dingren Cao
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Min Di
- Sir Run Shaw Hospital, Zhejiang University College of Medicine, Hangzhou, 310058, P. R. China
| | - Jingjie Liang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Shuang Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Qiang Tan
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Zhengguang Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
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13
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Wang M, Zheng Y. Oxidative stress and antioxidants in the trabecular meshwork. PeerJ 2019; 7:e8121. [PMID: 31788363 PMCID: PMC6883950 DOI: 10.7717/peerj.8121] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 10/30/2019] [Indexed: 12/22/2022] Open
Abstract
Glaucoma is an age-dependent disease closely related to oxidative stress and is regarded as the second leading cause of irreversible blindness worldwide. In recent years, many studies have shown that morphological and functional abnormalities of the trabecular meshwork (TM) are closely related to glaucoma, especially with respect to oxidative stress. In this review, the mechanisms of oxidative stress in the TM and treatment strategies for this condition, including strategies involving antioxidants, noncoding RNAs and exogenous compounds, are discussed. Although many questions remain to be answered, the reviewed findings provide insights for further research on oxidative stress alleviation in glaucoma and suggest new targets for glaucoma prevention.
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Affiliation(s)
- Mingxuan Wang
- Department of Ophthalmology, 2nd hospital affiliated to Jilin University, Changchun, China
| | - Yajuan Zheng
- Department of Ophthalmology, 2nd hospital affiliated to Jilin University, Changchun, China
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14
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Banks SA, Pierce ML, Soukup GA. Sensational MicroRNAs: Neurosensory Roles of the MicroRNA-183 Family. Mol Neurobiol 2019; 57:358-371. [DOI: 10.1007/s12035-019-01717-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 07/19/2019] [Indexed: 12/20/2022]
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15
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Lian J, Li Y, Yu M. MicroRNA-183 and microRNA-141 are potential risk factors for poor prognosis in patients with nasopharyngeal carcinoma. Oncol Lett 2019; 17:1172-1176. [PMID: 30655880 PMCID: PMC6312981 DOI: 10.3892/ol.2018.9650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 10/22/2018] [Indexed: 12/28/2022] Open
Abstract
This study investigated whether microRNA-183 and microRNA-141 in nasopharyngeal carcinoma (NPC) lesions are potential risk factors for poor prognosis. A total of 317 NPC patients admitted to Zhengzhou Central Hospital Affiliated to Zhengzhou University from January 2010 to March 2015 were included. Reverse transcription-quantitative PCR (RT-qPCR) was used to detect the expression of microRNA-183 and microRNA-141 in lesions and adjacent tissues, and the relationship between the microRNA-183 and microRNA-141 expression levels and prognosis was analyzed. The expression levels of microRNA-183 and microRNA-141 in lesions were significantly higher than those in adjacent tissues (p<0.05). Patients with distant metastasis had significantly higher expression levels of microRNA-183 and microRNA-141 than patients without distant metastasis (p<0.01). Patients with disease-free survival (DFS) <3 years showed significantly higher expression levels of microRNA-183 and microRNA-141 than those with DFS ≥3 years (p<0.01). NPC patients with high expression levels of microRNA-183 and microRNA-141 showed poor prognosis. MicroRNA-183 and microRNA-141 may play an important role in the distant metastasis of NPC, and have a great impact on prognosis.
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Affiliation(s)
- Junsheng Lian
- Department of Otolaryngology Head and Neck Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan 450007, P.R. China
| | - Yujie Li
- Department of Otolaryngology Head and Neck Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan 450007, P.R. China
| | - Min Yu
- Department of Otolaryngology Head and Neck Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan 450007, P.R. China
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16
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Neuroprotective effects of overexpressed microRNA-200a on activation of glaucoma-related retinal glial cells and apoptosis of ganglion cells via downregulating FGF7-mediated MAPK signaling pathway. Cell Signal 2018; 54:179-190. [PMID: 30439502 DOI: 10.1016/j.cellsig.2018.11.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 11/07/2018] [Accepted: 11/09/2018] [Indexed: 12/14/2022]
Abstract
Glaucoma is a progressive optic neuropathy and is one of the leading causes of blindness in the industrialized countries. The involvement of microRNAs (miRs) has been implicated in regulating the complex biological responses to changes in intraocular pressure. However, the therapeutic role of miR-200a on glaucoma has not been well studied yet. In this study, we confirmed the role of miR-200a in glaucoma progression and identified the related mechanism. Microarray expression profiles were used to screen the glaucoma-related genes. The relationship between miR-200a and FGF7 was validated by bioinformatics analysis and dual-luciferase reporter gene assay. Glaucoma-related parameters including the expression of CD11b and iNOS, activation of Muller cells, and apoptosis of retinal ganglion cells (RGCs) in the mouse model were measured by immunohistochemistry, MTT assay and TUNEL assay, respectively. miR-200a was reduced in glaucoma, whereas FGF7 was robustly induced. Thereby, we speculated that FGF7 was negatively regulated by miR-200a. Downregulated miR-200a could activate the MAPK signaling pathway following elevations in ERK, JNK, p38 and Bax expression and reduction in Bcl-2 expression. In the mouse model, downregulated miR-200a increased the expression of CD11b and iNOS and the apoptosis of RGCs, but stimulated the inactivation of Muller cells. However, the above-mentioned alternations induced by downregulated miR-200a were reversed after FGF7 repression. miR-200a can inhibit the FGF7-mediated MAPK signaling pathway and play a protective role on improving the glaucoma-induced optical nerve injury.
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17
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Meng Y, Eirin A, Zhu XY, Tang H, Hickson LJ, Lerman A, van Wijnen AJ, Lerman LO. Micro-RNAS Regulate Metabolic Syndrome-induced Senescence in Porcine Adipose Tissue-derived Mesenchymal Stem Cells through the P16/MAPK Pathway. Cell Transplant 2018; 27:1495-1503. [PMID: 30187775 PMCID: PMC6180720 DOI: 10.1177/0963689718795692] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs) constitute an important repair system, but may be impaired by exposure to cardiovascular risk factors. Consequently, adipose tissue-derived MSCs from pigs with the metabolic syndrome (MetS) show decreased vitality. A growing number of microRNAs (miRNAs) are recognized as key modulators of senescence, but their role in regulating senescence in MSC in MetS is unclear. We tested the hypothesis that MetS upregulates in MSC expression of miRNAs that can serve as post-transcriptional regulators of senescence-associated (SA) genes. MSCs were collected from swine abdominal adipose tissue after 16 weeks of Lean or Obese diet ( n = 6 each). Next-generation miRNA sequencing (miRNA-seq) was performed to identify miRNAs up-or down-regulated in MetS-MSCs compared with Lean-MSCs. Functional pathways of SA genes targeted by miRNAs were analyzed using gene ontology. MSC senescence was evaluated by p16 and p21 immunoreactivity, H2AX protein expression, and SA-β-Galactosidase activity. In addition, gene expression of p16, p21, MAPK3 (ERK1) and MAPK14, and MSC migration were studied after inhibition of SA-miR-27b. Senescence biomarkers were significantly elevated in MetS-MSCs. We found seven upregulated miRNAs, including miR-27b, and three downregulated miRNAs in MetS-MSCs, which regulate 35 SA genes, particularly MAPK signaling. Inhibition of miR-27b in cultured MSCs downregulated p16 and MARP3 genes, and increased MSC migration. MetS modulates MSC expression of SA-miRNAs that may regulate their senescence, and the p16 pathway seems to play an important role in MetS-induced MSC senescence.
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Affiliation(s)
- Y Meng
- 1 Divisions of Nephrology and Hypertension, Mayo Clinic, Rochester, USA.,2 Department of Nephrology, The First Hospital Affiliated to Jinan University, Guangzhou, China
| | - A Eirin
- 1 Divisions of Nephrology and Hypertension, Mayo Clinic, Rochester, USA
| | - X-Y Zhu
- 1 Divisions of Nephrology and Hypertension, Mayo Clinic, Rochester, USA
| | - H Tang
- 1 Divisions of Nephrology and Hypertension, Mayo Clinic, Rochester, USA
| | - L J Hickson
- 1 Divisions of Nephrology and Hypertension, Mayo Clinic, Rochester, USA
| | - A Lerman
- 3 Department of Cardiovascular Diseases, Mayo Clinic, Rochester, USA
| | - A J van Wijnen
- 2 Department of Nephrology, The First Hospital Affiliated to Jinan University, Guangzhou, China
| | - L O Lerman
- 1 Divisions of Nephrology and Hypertension, Mayo Clinic, Rochester, USA.,4 Orthopedic Surgery, Mayo Clinic, Rochester, USA
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18
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Liang Z, Kong R, He Z, Lin LY, Qin SS, Chen CY, Xie ZQ, Yu F, Sun GQ, Li CG, Fu D, Jiang GX, Chen J, Ma YS. High expression of miR-493-5p positively correlates with clinical prognosis of non small cell lung cancer by targeting oncogene ITGB1. Oncotarget 2018; 8:47389-47399. [PMID: 28537888 PMCID: PMC5564573 DOI: 10.18632/oncotarget.17650] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/19/2017] [Indexed: 12/30/2022] Open
Abstract
Increasing evidence supports that microRNA (miRNA)-mediated gene regulation plays a significant functional role in cancer progression. To investigate the expression and clinical significance of ITGB1 in non small cell lung cancer (NSCLC), the expression levels of ITGB1 in NSCLC tissues and human normal lung tissues were analyzed in silico using genes microarray, KEGG pathway and hierarchical clustering analysis followed by validation with quantitative RT-PCR. Our results showed that ITGB1 was upregulated in NSCLC tissues when compared with normal lung tissues. Survival analysis based on the qRT-PCR data established that ITGB1 expression was attentively related to the prognosis of NSCLC, and patients with higher ITGB1 expression had shorter overall survival (OS). Moreover, ITGB1 was confirmed to be a direct target of miR-493-5p. Furthermore, concomitant high expression of ITGB1 and low expression of miR-493-5p correlated with a shorter median OS and PFS in NSCLC patients. In conclusion, our results provide the first evidence that ITGB1 is a direct target of miR-493-5p suggesting that ITGB1 and miR-493-5p may have potential prognostic value and may be useful as tumor biomarkers for the diagnosis of NSCLC patients.
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Affiliation(s)
- Zhu Liang
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Rui Kong
- Medical College of Soochow University, Soochow 215006, China
| | - Zhan He
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Li-Yao Lin
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Shan-Shan Qin
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Chun-Yuan Chen
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Zhan-Qiang Xie
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Fei Yu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Guo-Qian Sun
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Chun-Guang Li
- Department of Thoracic Surgery, Changhai Hospital of Second Military Medical University, Shanghai 200433, China
| | - Da Fu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Geng-Xi Jiang
- Department of Thoracic Surgery, Changhai Hospital of Second Military Medical University, Shanghai 200433, China
| | - Jie Chen
- Department of Cardiothoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Yu-Shui Ma
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.,Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, College of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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19
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Deregulation of miR-183 promotes melanoma development via lncRNA MALAT1 regulation and ITGB1 signal activation. Oncotarget 2018; 8:3509-3518. [PMID: 27966454 PMCID: PMC5356899 DOI: 10.18632/oncotarget.13862] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/22/2016] [Indexed: 01/17/2023] Open
Abstract
Dysregulation of miR-183 has been recently elucidated in several carcinomas. However, the expression patterns and mechanisms of miR-183 involved in malignant melanoma remain unidentified. Here, we found down-regulation of miR-183 in melanoma tissues and cells. Decreased level of miR-183 was relevant to poor overall survival, while miR-183 up-regulation resulted in a marked suppression of cell growth in vitro and in vivo. We further found that the expression and function of miR-183 were suppressed by MALAT1. Integrin β1 (ITGB1) was then speculated and confirmed as a direct target of miR-183. We also illustrated that MALAT1 may function as a sponge competitive endogenous RNA (ceRNA) for miR-183, and thus regulate the molecular expression of ITGB1. Collectively, we found a new signaling pathway promoting melanoma development by MALAT1-miR-183-ITGB1 axis, which may be clinically valuable as new targets for malignant melanoma therapy.
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20
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Langer EM, Kendsersky ND, Daniel CJ, Kuziel GM, Pelz C, Murphy KM, Capecchi MR, Sears RC. ZEB1-repressed microRNAs inhibit autocrine signaling that promotes vascular mimicry of breast cancer cells. Oncogene 2018; 37:1005-1019. [PMID: 29084210 PMCID: PMC5823716 DOI: 10.1038/onc.2017.356] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 08/17/2017] [Accepted: 08/18/2017] [Indexed: 12/13/2022]
Abstract
During normal tumor growth and in response to some therapies, tumor cells experience acute or chronic deprivation of nutrients and oxygen and induce tumor vascularization. While this occurs predominately through sprouting angiogenesis, tumor cells have also been shown to directly contribute to vessel formation through vascular mimicry (VM) and/or endothelial transdifferentiation. The extrinsic and intrinsic mechanisms underlying tumor cell adoption of endothelial phenotypes, however, are not well understood. Here we show that serum withdrawal induces mesenchymal breast cancer cells to undergo VM and that knockdown of the epithelial-to-mesenchymal transition (EMT) regulator, Zinc finger E-box binding homeobox 1 (ZEB1), or overexpression of the ZEB1-repressed microRNAs (miRNAs), miR-200c, miR-183, miR-96 and miR-182 inhibits this process. We find that secreted proteins Fibronectin 1 (FN1) and serine protease inhibitor (serpin) family E member 2 (SERPINE2) are essential for VM in this system. These secreted factors are upregulated in mesenchymal cells in response to serum withdrawal, and overexpression of VM-inhibiting miRNAs abrogates this upregulation. Intriguingly, the receptors for these secreted proteins, low-density lipoprotein receptor-related protein 1 (LRP1) and Integrin beta 1 (ITGB1), are also targets of the VM-inhibiting miRNAs, suggesting that autocrine signaling stimulating VM is regulated by ZEB1-repressed miRNA clusters. Together, these data provide mechanistic insight into the regulation of VM and suggest that miRNAs repressed during EMT, in addition to suppressing migratory and stem-like properties of tumor cells, also inhibit endothelial phenotypes of breast cancer cells adopted in response to a nutrient-deficient microenvironment.
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Affiliation(s)
- E M Langer
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA
| | - N D Kendsersky
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA
| | - C J Daniel
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA
| | - G M Kuziel
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA
| | - C Pelz
- Division of Bioinformatics and Computational Biology, Oregon Health & Science University, Portland, OR, USA
| | - K M Murphy
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
- Department of Pathology & Immunology, Washington University, St. Louis, MO, USA
| | - M R Capecchi
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - R C Sears
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
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21
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Zhou L, Chen X, Liu T, Zhu C, Si M, Jargstorf J, Li M, Pan G, Gong Y, Luo ZP, Yang H, Pei M, He F. SIRT1-dependent anti-senescence effects of cell-deposited matrix on human umbilical cord mesenchymal stem cells. J Tissue Eng Regen Med 2018; 12:e1008-e1021. [PMID: 28107614 PMCID: PMC9805355 DOI: 10.1002/term.2422] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 10/07/2016] [Accepted: 01/17/2017] [Indexed: 01/03/2023]
Abstract
Human umbilical cord-derived mesenchymal stem cells (UC-MSCs) are considered an attractive cell source for tissue regeneration. However, environmental oxidative stress can trigger premature senescence in MSCs and thus compromises their regenerative potential. Extracellular matrix (ECM) derived from MSCs has been shown to facilitate cell proliferation and multi-lineage differentiation. This investigation evaluated the effect of cell-deposited decellularized ECM (DECM) on oxidative stress-induced premature senescence in UC-MSCs. Sublethal dosages of H2 O2 , ranging from 50 μm to 200 μm, were used to induce senescence in MSCs. We found that DECM protected UC-MSCs from oxidative stress-induced premature senescence. When treated with H2 O2 at the same concentration, cell proliferation of DECM-cultured UC-MSCs was twofold higher than those on standard tissue culture polystyrene (TCPS). After exposure to 100 μm H2 O2 , fewer senescence-associated β-galactosidase-positive cells were observed on DECM than those on TCPS (17.6 ± 4.0% vs. 60.4 ± 6.2%). UC-MSCs cultured on DECM also showed significantly lower levels of senescence-related regulators, such as p16INK4α and p21. Most importantly, DECM preserved the osteogenic differentiation potential of UC-MSCs with premature senescence. The underlying molecular mechanisms involved the silent information regulator type 1 (SIRT1)-dependent signalling pathway, confirmed by the fact that the SIRT1 inhibitor nicotinamide counteracted the DECM-mediated anti-senescent effect. Collagen type I, rather than fibronectin, partially contributed to the protective effect of decellularized matrix. These findings provide a new strategy of using stem cell-deposited matrix to overcome the challenge of cellular senescence and to facilitate the clinical application of MSCs in regenerative medicine. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Long Zhou
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China,Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xi Chen
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China,School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, China
| | - Tao Liu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Caihong Zhu
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China
| | - Michelle Si
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China,Departments of Biology and Chemistry, Faculty of Science, University of Waterloo, Waterloo, ON, Canada
| | - Joseph Jargstorf
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China,Department of Biology, Faculty of Science, University of Waterloo, Waterloo, ON, Canada
| | - Mao Li
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China,Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Guoqing Pan
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China
| | - Yihong Gong
- School of Engineering, Sun Yat-sen University, Guangzhou, China
| | - Zong-Ping Luo
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China,Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huilin Yang
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China,Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics and Division of Exercise Physiology, West Virginia University, Morgantown, WV, USA
| | - Fan He
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, China,Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, China
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22
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Ma Y, Liang AJ, Fan YP, Huang YR, Zhao XM, Sun Y, Chen XF. Dysregulation and functional roles of miR-183-96-182 cluster in cancer cell proliferation, invasion and metastasis. Oncotarget 2018; 7:42805-42825. [PMID: 27081087 PMCID: PMC5173173 DOI: 10.18632/oncotarget.8715] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 03/31/2016] [Indexed: 02/07/2023] Open
Abstract
Previous studies have reported aberrant expression of the miR-183-96-182 cluster in a variety of tumors, which indicates its' diagnostic or prognostic value. However, a key characteristic of the miR-183-96-182 cluster is its varied expression levels, and pleomorphic functional roles in different tumors or under different conditions. In most tumor types, the cluster is highly expressed and promotes tumorigenesis, cancer progression and metastasis; yet tumor suppressive effects have also been reported in some tumors. In the present study, we discuss the upstream regulators and the downstream target genes of miR-183-96-182 cluster, and highlight the dysregulation and functional roles of this cluster in various tumor cells. Newer insights summarized in this review will help readers understand the different facets of the miR-183-96-182 cluster in cancer development and progression.
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Affiliation(s)
- Yi Ma
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - A-Juan Liang
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Yu-Ping Fan
- Reproductive Medicine Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi-Ran Huang
- Department of Urology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Ming Zhao
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Yun Sun
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Xiang-Feng Chen
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China.,Department of Urology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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23
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Golbakhsh MR, Boddouhi B, Hatami N, Goudarzi PK, Shakeri M, Yahaghi E, Taheriazam A. Down-regulation of microRNA-182 and microRNA-183 predicts progression of osteosarcoma. Arch Med Sci 2017; 13:1352-1356. [PMID: 29181065 PMCID: PMC5701680 DOI: 10.5114/aoms.2016.60091] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 04/12/2016] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION The aim of this study was to investigate the expression levels of microRNA-182 and microRNA-183 and their association with clinicopathological features in patients with osteosarcoma. MATERIAL AND METHODS Total RNA was purified from samples and noncancerous bone tissues and then quantitative real-time polymerase chain reaction was applied to evaluate the expression levels of microRNAs, and their relationship with clinicopathological features and survival in osteosarcoma patients. RESULTS Our findings showed that expression of MiR-182 was clearly lower in osteosarcoma bone tissue (mean ± SD: 2.84 ±.07) compared with noncancerous bone tissues (6.23 ±1.72, p = 0.004). On the other hand, lower expression of MiR-183 was seen in osteosarcoma bone tissue (1.43 ±0.59) when compared with normal tissues (4.36 ±2.47, p = 0.036). Decreased expression of MiR-182 was clearly correlated with advanced clinical stage (p = 0.001), metastasis or recurrence (p = 0.024), and large tumor size (p = 0.032). Decreased expression of MiR-183 was associated with advanced TNM stage (p = 0.004), and metastasis or recurrence (p = 0.002). A multivariate Cox proportional hazards model revealed that low expression of MiR-182 and MiR-183 (p = 0.02; p = 0.016), TNM stage (p = 0.04), and metastasis or recurrence (p = 0.03) were significantly associated with poor survival as independent prognostic factors. CONCLUSIONS These findings suggest that MiR-182 and MiR-183 may be associated with progression and metastasis of osteosarcoma.
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Affiliation(s)
- Mohammad Reza Golbakhsh
- Department of Orthopedics, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Bahram Boddouhi
- Department of Orthopedic Surgery, Rasoul-e-Akram Hospital, Iran University of Medical Science, Tehran, Iran
| | - Negin Hatami
- Zanjan University of Medical Science, Zanjan, Iran
| | | | - Mohammadreza Shakeri
- Department of Orthopaedic and Trauma Surgery, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Emad Yahaghi
- Department of Molecular Biology, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Afshin Taheriazam
- Department of Orthopedic Surgery, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
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24
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Drak Alsibai K, Meseure D. Tumor microenvironment and noncoding RNAs as co-drivers of epithelial-mesenchymal transition and cancer metastasis. Dev Dyn 2017; 247:405-431. [PMID: 28691356 DOI: 10.1002/dvdy.24548] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/31/2017] [Accepted: 06/29/2017] [Indexed: 12/13/2022] Open
Abstract
Reciprocal interactions between cancer cells and tumor microenvironment (TME) are crucial events in tumor progression and metastasis. Pervasive stromal reprogramming of TME modifies numerous cellular functions, including extracellular matrix (ECM) stiffness, inflammation, and immunity. These environmental factors allow selection of more aggressive cells that develop adaptive strategies associating plasticity and epithelial-mesenchymal transition (EMT), stem-like phenotype, invasion, immunosuppression, and resistance to therapies. EMT is a morphomolecular process that endows epithelial tumor cells with mesenchymal properties, including reduced adhesion and increased motility. Numerous studies have demonstrated involvement of noncoding RNAs (ncRNAs), such as miRNAs and lncRNAs, in tumor initiation, progression, and metastasis. NcRNAs regulate every hallmark of cancer and have now emerged as new players in induction and regulation of EMT. The reciprocal regulatory interactions between ncRNAs, TME components, and cancer cells increase the complexity of gene expression and protein translation in cancer. Thus, deeper understanding of molecular mechanisms controlling EMT will not only shed light on metastatic processes of cancer cells, but enhance development of new therapies targeting metastasis. In this review, we will provide recent findings on the role of known ncRNAs relevant to EMT and cancer metastasis and discuss the role of the interaction between ncRNAs and TME as co-drivers of EMT. Developmental Dynamics 247:405-431, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
| | - Didier Meseure
- Platform of Investigative Pathology, Curie Institute, Paris, France.,Department of Pathology, Curie Institute, Paris, France
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25
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Van den Ackerveken P, Mounier A, Huyghe A, Sacheli R, Vanlerberghe PB, Volvert ML, Delacroix L, Nguyen L, Malgrange B. The miR-183/ItgA3 axis is a key regulator of prosensory area during early inner ear development. Cell Death Differ 2017; 24:2054-2065. [PMID: 28777373 DOI: 10.1038/cdd.2017.127] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 06/15/2017] [Accepted: 06/30/2017] [Indexed: 01/08/2023] Open
Abstract
MicroRNAs are important regulators of gene expression and are involved in cellular processes such as proliferation or differentiation, particularly during development of numerous organs including the inner ear. However, it remains unknown if miRNAs are required during the earliest stages of otocyst and cochlear duct development. Here, we report that a conditional loss of Dicer expression in the otocyst impairs the early development of the inner ear as a result of the accumulation of DNA damage that trigger p53-mediated apoptosis. Moreover, cochlear progenitors in the prosensory domain do not exit the cell cycle. Our unbiased approach identified ItgA3 as a target of miR-183, which are both enriched in the otic vesicle. We observed that the repression of integrin alpha 3 by miR-183 controls cell proliferation in the developing cochlea. Collectively, our results reveal that Dicer and miRNAs play essential roles in the regulation of early inner ear development.
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Affiliation(s)
- Priscilla Van den Ackerveken
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
| | - Anaïs Mounier
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
| | - Aurelia Huyghe
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
| | - Rosalie Sacheli
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
| | - Pierre-Bernard Vanlerberghe
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
| | - Marie-Laure Volvert
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
| | - Laurence Delacroix
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
| | - Laurent Nguyen
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
| | - Brigitte Malgrange
- GIGA-Neurosciences, Interdisciplinary Cluster for Applied Genoproteomics (GIGA-R), University of Liège, C.H.U. Sart Tilman, Liège B-4000, Belgium
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26
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Wang Y, Li F, Wang S. MicroRNA‑93 is overexpressed and induces apoptosis in glaucoma trabecular meshwork cells. Mol Med Rep 2016; 14:5746-5750. [PMID: 27878244 DOI: 10.3892/mmr.2016.5938] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 10/03/2016] [Indexed: 11/05/2022] Open
Abstract
Glaucoma is an optic neuropathy and a major cause of blindness globally. Trabecular meshwork cells are important in maintaining aqueous humor flow, the dysfunction of which tends to induce glaucoma. As important regulators of gene expression, microRNAs may be crucial in regulating trabecular meshwork cells. The present study aimed to reveal the effect of microRNA‑93 (miR‑93) on glaucoma trabecular meshwork (GTM) cell apoptosis. The expression levels of miR‑93 were compared between human trabecular meshwork (HTM) cells and GTM cells. The expression of miR‑93 was inhibited and increased by transfecting the cells with a lentivirus containing its specific inhibitor sponge and expression vector to investigate changes in GTM cell viability and apoptosis. Alterations in the protein expression of nuclear factor erythroid 2‑like 2 (NFE2L2) were also examined to elucidate the possible mechanism underlying the effects of miR‑93. The results showed a marked promotion in the expression of miR‑93 in the GTM cells, compared with the HTM cells (P<0.01). GTM cell viability was increased and its apoptosis was inhibited by transfection with the miR‑93 sponge (P<0.01 and P<0.001, respectively), whereas the overexpression of miR‑93 abrogated these effects (P<0.05 and P<0.0001, respectively). The expression of NFE2L2, a possible target of miR‑93, was promoted by transfection with the miR‑93 sponge (P<0.01) and was inhibited in the cells overexpressing miR‑93 (P<0.01). Therefore, miR‑93 was capable of inhibiting viability and inducing apoptosis of the GTM cells, which was achieved via the suppression of NFE2L2. These results elucidated the pro‑apoptotic effects of miR‑93 in GTM cells and its possible functional mechanism, providing potential therapeutic targets for the treatment of glaucoma.
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Affiliation(s)
- Yansa Wang
- Department of Ophthalmology, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Fenghua Li
- Department of Ophthalmology, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
| | - Shuyun Wang
- Department of Ophthalmology, Linyi People's Hospital, Linyi, Shandong 276000, P.R. China
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27
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KIF2A Overexpression and Its Association with Clinicopathologic Characteristics and Poor Prognoses in Patients with Gastric Cancer. DISEASE MARKERS 2016; 2016:7484516. [PMID: 27773961 PMCID: PMC5059588 DOI: 10.1155/2016/7484516] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 09/04/2016] [Indexed: 12/18/2022]
Abstract
Kinesin family protein 2A (KIF2A), an M-type nonmotile microtubule depolymerase, has attracted attention for its role in carcinogenesis and poor prognoses in various human cancers. In this study, we aimed to evaluate the expression of KIF2A and its robustness and potential to predict clinical outcomes in gastric cancer (GC) patients. The messenger RNA (mRNA) expression of KIF2A was determined in 24 pairs of cancerous and adjacent nontumor tissues by real-time polymerase chain reaction. Immunohistochemistry of KIF2A was performed on a tissue microarray composed of 461 GC and 65 matched adjacent nontumor tissues removed during surgeries and 18 chronic gastritis, 15 intestinal metaplasia, and 37 low-grade and 62 high-grade intraepithelial neoplasias acquired through gastric endoscopic biopsies. Univariate and multivariate Cox regression models were used to perform survival analyses. The high KIF2A expression was significantly correlated to histological type, TNM stage, and lymph node metastasis. A negative correlation was found between KIF2A expression and the 5-year survival rate of GC patients. In addition, multivariate analysis indicated that KIF2A is an independent prognostic factor in GC. This study demonstrated the high KIF2A expression might serve as an independent marker for poor prognoses in GC patients.
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28
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Li G, Luna C, Gonzalez P. miR-183 Inhibits UV-Induced DNA Damage Repair in Human Trabecular Meshwork Cells by Targeting of KIAA0101. Invest Ophthalmol Vis Sci 2016; 57:2178-86. [PMID: 27116545 PMCID: PMC4849888 DOI: 10.1167/iovs.15-18665] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Purpose The purpose of this study was to investigate the mechanisms by which miR-183 may contribute to the phenotypic alterations associated with stress-induced senescence of human trabecular meshwork (HTM) cells. Methods Changes in gene expression induced by miR-183 in HTM cells were evaluated by gene array analysis, confirmed by quantitative-PCR (Q-PCR), and analyzed by MetaCore pathway analysis. Effects of miR-183 on cell proliferation were assessed by incorporation of bromodeoxyuridine incorporation, and DNA damage by CometAssay after ultraviolet (UV) irradiation in primary HTM cells, and confirmed in human diploid fibroblasts (HDF) and HeLa cells. A plasmid expressing KIAA0101 without its 3′-untranslated region (3′-UTR) was cotransfected with miR-183 to evaluate the role of KIAA0101 on the effects induced by miR-183. Results miR-183 affected the expression of multiple genes involved in cell cycle regulation and DNA damage response in HTM cells. Forced expression of miR-183 in HTM and HDF resulted in a significant decrease in proliferation in primary HTM and HDF cells but not in HeLa cells. In all cell types tested, overexpression of miR-183 resulted in increased DNA damage under UV irradiation. Expression of KIAA0101 lacking the 3′-UTR region partially prevented the effects of miR-183 on cell proliferation and completely reversed the effects on UV-induced DNA damage. Conclusions Our results suggest that the observed up-regulation of miR-183 after stress-induced senescence in HTM cells may contribute to reinforce cellular senescence by inhibiting cell cycle progression through multiple gene targets and limiting the DNA repair mechanisms through inhibition of KIAA0101.
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Liu Y, Bailey JC, Helwa I, Dismuke WM, Cai J, Drewry M, Brilliant MH, Budenz DL, Christen WG, Chasman DI, Fingert JH, Gaasterland D, Gaasterland T, Gordon MO, Igo RP, Kang JH, Kass MA, Kraft P, Lee RK, Lichter P, Moroi SE, Realini A, Richards JE, Ritch R, Schuman JS, Scott WK, Singh K, Sit AJ, Song YE, Vollrath D, Weinreb R, Medeiros F, Wollstein G, Zack DJ, Zhang K, Pericak-Vance MA, Gonzalez P, Stamer WD, Kuchtey J, Kuchtey RW, Allingham RR, Hauser MA, Pasquale LR, Haines JL, Wiggs JL. A Common Variant in MIR182 Is Associated With Primary Open-Angle Glaucoma in the NEIGHBORHOOD Consortium. Invest Ophthalmol Vis Sci 2016; 57:4528-4535. [PMID: 27537254 PMCID: PMC4991020 DOI: 10.1167/iovs.16-19688] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 06/21/2016] [Indexed: 11/25/2022] Open
Abstract
PURPOSE Noncoding microRNAs (miRNAs) have been implicated in the pathogenesis of glaucoma. We aimed to identify common variants in miRNA coding genes (MIR) associated with primary open-angle glaucoma (POAG). METHODS Using the NEIGHBORHOOD data set (3853 cases/33,480 controls with European ancestry), we first assessed the relation between 85 variants in 76 MIR genes and overall POAG. Subtype-specific analyses were performed in high-tension glaucoma (HTG) and normal-tension glaucoma subsets. Second, we examined the expression of miR-182, which was associated with POAG, in postmortem human ocular tissues (ciliary body, cornea, retina, and trabecular meshwork [TM]), using miRNA sequencing (miRNA-Seq) and droplet digital PCR (ddPCR). Third, miR-182 expression was also examined in human aqueous humor (AH) by using miRNA-Seq. Fourth, exosomes secreted from primary human TM cells were examined for miR-182 expression by using miRNA-Seq. Fifth, using ddPCR we compared miR-182 expression in AH between five HTG cases and five controls. RESULTS Only rs76481776 in MIR182 gene was associated with POAG after adjustment for multiple comparisons (odds ratio [OR] = 1.23, 95% confidence interval [CI]: 1.11-1.42, P = 0.0002). Subtype analysis indicated that the association was primarily in the HTG subset (OR = 1.26, 95% CI: 1.08-1.47, P = 0.004). The risk allele T has been associated with elevated miR-182 expression in vitro. Data from ddPCR and miRNA-Seq confirmed miR-182 expression in all examined ocular tissues and TM-derived exosomes. Interestingly, miR-182 expression in AH was 2-fold higher in HTG patients than nonglaucoma controls (P = 0.03) without controlling for medication treatment. CONCLUSIONS Our integrative study is the first to associate rs76481776 with POAG via elevated miR-182 expression.
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Affiliation(s)
- Yutao Liu
- Department of Cellular Biology and Anatomy Augusta University, Augusta, Georgia, United States
- James & Jean Culver Vision Discovery Institute, Augusta University, Augusta, Georgia, United States
- Center for Biotechnology and Genomic Medicine, Augusta University, Augusta, Georgia, United States
| | - Jessica Cooke Bailey
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States
| | - Inas Helwa
- Department of Cellular Biology and Anatomy Augusta University, Augusta, Georgia, United States
| | - W. Michael Dismuke
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, United States
| | - Jingwen Cai
- Department of Cellular Biology and Anatomy Augusta University, Augusta, Georgia, United States
| | - Michelle Drewry
- Department of Cellular Biology and Anatomy Augusta University, Augusta, Georgia, United States
| | - Murray H. Brilliant
- Center for Human Genetics, Marshfield Clinic Research Foundation, Marshfield, Wisconsin, United States
| | - Donald L. Budenz
- Department of Ophthalmology, University of North Carolina, Chapel Hill, North Carolina, United States
| | - William G. Christen
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States
| | - Daniel I. Chasman
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States
| | - John H. Fingert
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, University of Iowa, Iowa City, Iowa, United States
| | | | - Terry Gaasterland
- Scripps Genome Center, University of California at San Diego, San Diego, California, United States
| | - Mae O. Gordon
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Robert P. Igo
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States
| | - Jae H. Kang
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States
| | - Michael A. Kass
- Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Peter Kraft
- School of Public Health, Harvard University, Boston, Massachusetts, United States
| | - Richard K. Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Paul Lichter
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan, United States
| | - Sayoko E. Moroi
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan, United States
| | - Anthony Realini
- Department of Ophthalmology, West Virginia University Eye Institute, Morgantown, West Virginia, United States
| | - Julia E. Richards
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan, United States
| | - Robert Ritch
- Einhorn Clinical Research Center, New York Eye and Ear Infirmary of Mount Sinai, New York, New York, United States
| | - Joel S. Schuman
- Department of Ophthalmology, UPMC Eye Center, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - William K. Scott
- Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Kuldev Singh
- Department of Ophthalmology, Stanford University, Palo Alto, California, United States
| | - Arthur J. Sit
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, United States
| | - Yeunjoo E. Song
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States
| | - Douglas Vollrath
- Department of Ophthalmology, Stanford University, Palo Alto, California, United States
| | - Robert Weinreb
- Department of Ophthalmology and Hamilton Glaucoma Center, University of California, San Diego, California, United States
| | - Felipe Medeiros
- Department of Ophthalmology and Hamilton Glaucoma Center, University of California, San Diego, California, United States
| | - Gadi Wollstein
- Department of Ophthalmology, UPMC Eye Center, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Donald J. Zack
- Wilmer Eye Institute, Johns Hopkins University Hospital, Baltimore, Maryland, United States
| | - Kang Zhang
- Department of Ophthalmology and Hamilton Glaucoma Center, University of California, San Diego, California, United States
| | - Margaret A. Pericak-Vance
- Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Pedro Gonzalez
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, United States
| | - W. Daniel Stamer
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, United States
| | - John Kuchtey
- Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Rachel W. Kuchtey
- Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - R. Rand Allingham
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, United States
| | - Michael A. Hauser
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, United States
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, United States
| | - Louis R. Pasquale
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, Massachusetts, United States
- Department of Ophthalmology, Mass Eye & Ear, Boston, Massachusetts, United States
| | - Jonathan L. Haines
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States
| | - Janey L. Wiggs
- Department of Ophthalmology, Mass Eye & Ear, Boston, Massachusetts, United States
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Lodrini M, Poschmann G, Schmidt V, Wünschel J, Dreidax D, Witt O, Höfer T, Meyer HE, Stühler K, Eggert A, Deubzer HE. Minichromosome Maintenance Complex Is a Critical Node in the miR-183 Signaling Network of MYCN-Amplified Neuroblastoma Cells. J Proteome Res 2016; 15:2178-86. [DOI: 10.1021/acs.jproteome.6b00134] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Marco Lodrini
- Department
of Pediatric Hematology/Oncology/Stem Cell Transplantation Charité − Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger
Platz 1, 13353 Berlin, Germany
| | - Gereon Poschmann
- Molecular
Proteomics Laboratory, Biological Medical Research Centre, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Victoria Schmidt
- Clinical
Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), INF 280, 69120 Heidelberg, Germany
| | - Jasmin Wünschel
- Department
of Pediatric Hematology/Oncology/Stem Cell Transplantation Charité − Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger
Platz 1, 13353 Berlin, Germany
| | - Daniel Dreidax
- Division
Neuroblastoma Genetics, DKFZ, INF 280, 69120 Heidelberg, Germany
| | - Olaf Witt
- Clinical
Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), INF 280, 69120 Heidelberg, Germany
- Center
for Individualized Pediatric Oncology (ZIPO) and Brain Tumors, Department
of Pediatric Hematology/Oncology, University of Heidelberg and National Center for Tumor Diseases (NCT), INF 430, 69120 Heidelberg, Germany
| | - Thomas Höfer
- Division
of Theoretical Systems Biology, DKFZ, INF 280, 69120 Heidelberg, Germany
| | - Helmut E. Meyer
- Leibniz-Institut
für Analytische Wissenschaften − ISAS − e.V., Bunsen-Kirchhoff-Str. 11, 44139 Dortmund, Germany
| | - Kai Stühler
- Molecular
Proteomics Laboratory, Biological Medical Research Centre, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
- Institute
for Molecular Medicine, University Hospital Düsseldorf, Universitätsstraße
1, 40225 Düsseldorf, Germany
| | - Angelika Eggert
- Department
of Pediatric Hematology/Oncology/Stem Cell Transplantation Charité − Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger
Platz 1, 13353 Berlin, Germany
| | - Hedwig E. Deubzer
- Department
of Pediatric Hematology/Oncology/Stem Cell Transplantation Charité − Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger
Platz 1, 13353 Berlin, Germany
- Clinical
Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), INF 280, 69120 Heidelberg, Germany
- Center
for Individualized Pediatric Oncology (ZIPO) and Brain Tumors, Department
of Pediatric Hematology/Oncology, University of Heidelberg and National Center for Tumor Diseases (NCT), INF 430, 69120 Heidelberg, Germany
- Junior
Neuroblastoma Research Group, Experimental and Clinical Research Center
of the Max-Delbrück Center for Molecular Medicine and the Charité − Universitätsmedizin Berlin, Lindenberger Weg 80, 13125 Berlin, Germany
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31
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Frediani JN, Fabbri M. Essential role of miRNAs in orchestrating the biology of the tumor microenvironment. Mol Cancer 2016; 15:42. [PMID: 27231010 PMCID: PMC4882787 DOI: 10.1186/s12943-016-0525-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 05/12/2016] [Indexed: 12/14/2022] Open
Abstract
MicroRNAs (miRNAs) are emerging as central players in shaping the biology of the Tumor Microenvironment (TME). They do so both by modulating their expression levels within the different cells of the TME and by being shuttled among different cell populations within exosomes and other extracellular vesicles. This review focuses on the state-of-the-art knowledge of the role of miRNAs in the complexity of the TME and highlights limitations and challenges in the field. A better understanding of the mechanisms of action of these fascinating micro molecules will lead to the development of new therapeutic weapons and most importantly, to an improvement in the clinical outcome of cancer patients.
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Affiliation(s)
- Jamie N Frediani
- Children's Center for Cancer and Blood Diseases and The Saban Research Institute, Children's Hospital, Los Angeles, Los Angeles, CA, USA
| | - Muller Fabbri
- Children's Center for Cancer and Blood Diseases and The Saban Research Institute, Children's Hospital, Los Angeles, Los Angeles, CA, USA. .,Departments of Pediatrics and Molecular Microbiology & Immunology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA. .,, 4650 Sunset Blvd MS #57, Los Angeles, CA, 90027, USA.
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32
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hTERT mediates gastric cancer metastasis partially through the indirect targeting of ITGB1 by microRNA-29a. Sci Rep 2016; 6:21955. [PMID: 26903137 PMCID: PMC4763288 DOI: 10.1038/srep21955] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 02/02/2016] [Indexed: 02/04/2023] Open
Abstract
Human telomerase reverse transcriptase (hTERT) plays a key role in tumor invasion and metastasis, but the mechanism of its involvement in these processes is not clear. The purpose of this study is to investigate the possible molecular mechanism of hTERT in the promotion of gastric cancer (GC) metastasis. We found that the up-regulation of hTERT in gastric cancer cells could inhibit the expression of miR-29a and enhance the expression of Integrin β1 (ITGB1). In addition, the invasive capacity of gastric cancer cells was also highly increased after hTERT overexpression. Our study also found that the restoration of miR-29a suppressed the expression of ITGB1 and inhibited GC cell metastasis both in vitro and in vivo. Taken together, our results suggested that hTERT may promote GC metastasis through the hTERT-miR-29a-ITGB1 regulatory pathway.
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Ke K, Sul OJ, Rajasekaran M, Choi HS. MicroRNA-183 increases osteoclastogenesis by repressing heme oxygenase-1. Bone 2015; 81:237-246. [PMID: 26163109 DOI: 10.1016/j.bone.2015.07.006] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 07/03/2015] [Accepted: 07/06/2015] [Indexed: 11/22/2022]
Abstract
Emerging evidence suggests that microRNAs (miRs) influence skeletal structure by modulating osteoclastogenesis and bone resorption. We have demonstrated previously that the up-regulation of heme oxygenase-1 (HO-1) attenuated osteoclastogenesis in bone marrow-derived macrophages (BMMs). RANKL-induced osteoclastogenesis elevates microRNA-183 (miR-183) in BMM. We show here that HO-1 is a target gene of miR-183 and that this miRNA binds to the 3'-UTR of HO-1. We find that a synthetic inhibitor that binds to miR-183 decreases osteoclast (OC) differentiation and increases the expression of HO-1, while a mimic of endogenous mature miR-183 has the opposite effect. Moreover, the HO-1 inducers, resveratrol and piceatannol decrease the expression of miR-183, resulting in attenuated osteoclastogenesis. Our findings reveal how miR-183 affects OC formation.
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Affiliation(s)
- Ke Ke
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan 680-749, South Korea
| | - Ok-Joo Sul
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan 680-749, South Korea
| | - Monisha Rajasekaran
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan 680-749, South Korea
| | - Hye-Seon Choi
- Department of Biological Sciences (BK21 Program), University of Ulsan, Ulsan 680-749, South Korea.
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34
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Miao F, Zhu J, Chen Y, Tang N, Wang X, Li X. MicroRNA-183-5p promotes the proliferation, invasion and metastasis of human pancreatic adenocarcinoma cells. Oncol Lett 2015; 11:134-140. [PMID: 26870180 PMCID: PMC4726923 DOI: 10.3892/ol.2015.3872] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 07/16/2015] [Indexed: 01/06/2023] Open
Abstract
The aim of the current study was to investigate the potential role of microRNA-183-5p (miR-183-5p) in the proliferation, invasion and metastasis of pancreatic cancer, and to identify promising target genes of oncogenic miR-183-5p. Western blotting and quantitative polymerase chain reaction (qPCR) were used to investigate whether these oncogenic microRNAs may be useful as biomarkers in pancreatic carcinoma (PaCa). Potential target genes were verified using miRDB, PicTar and TargetSCAN, and qPCR was used to detect the expression of miR-183 and suppressor of cytokine signaling 6 (SOCS-6; a potential target of miR-183) in PANC-1 PaCa cells and in the HPDE6-C7 pancreatic ductal cell line for comparison. The function of miR-183 in cell proliferation, wound healing, invasion and migration was also investigated using a miR-183 inhibitor. Western blot analysis was used to confirm SOCS-6 as a tumor suppressor and qPCR was used to detect and confirm that this potential target gene is directly regulated by miR-183. The results indicated that the expression of miR-183 in PANC-1 cells was upregulated compared with that in HPDE6-C7 cells, whilst the expression of SOCS-6 was downregulated. SOCS-6 expression was also significantly lower in PaCa tissues compared with that in matched normal pancreatic tissues from PaCa patients. Furthermore, expression of miR-183 was inversely correlated with that of SOCS-6. miR-183 knockdown decreased cell growth and motility in pancreatic cancer cells and significantly increased the expression of SOCS-6. These data suggest that oncogenic miR-183 may be useful as a pancreatic cancer biomarker. In addition, inhibition of miR-183 expression may be beneficial as PaCa treatment. SOCS-6 is a potential target gene of miR-183.
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Affiliation(s)
- Fei Miao
- Department of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China; Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Jinhai Zhu
- Department of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China; Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Yanlin Chen
- Department of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China; Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Nanhong Tang
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Xiaoqian Wang
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Xiujin Li
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
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Abdelmohsen K, Gorospe M. Noncoding RNA control of cellular senescence. WILEY INTERDISCIPLINARY REVIEWS-RNA 2015; 6:615-29. [PMID: 26331977 DOI: 10.1002/wrna.1297] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 07/19/2015] [Accepted: 07/20/2015] [Indexed: 12/23/2022]
Abstract
Senescent cells accumulate in normal tissues with advancing age and arise by long-term culture of primary cells. Senescence develops following exposure to a range of stress-causing agents and broadly influences the physiology and pathology of tissues, organs, and systems in the body. While many proteins are known to control senescence, numerous noncoding (nc)RNAs are also found to promote or repress the senescent phenotype. Here, we review the regulatory ncRNAs (primarily microRNAs and lncRNAs) identified to-date as key modulators of senescence. We highlight the major senescent pathways (p53/p21 and pRB/p16), as well as the senescence-associated secretory phenotype (SASP) and other senescence-associated events governed by ncRNAs, and discuss the importance of understanding comprehensively the ncRNAs implicated in cell senescence.
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Affiliation(s)
- Kotb Abdelmohsen
- Laboratory of Genetics, National Institute on Aging-Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
| | - Myriam Gorospe
- Laboratory of Genetics, National Institute on Aging-Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
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Linhares-Lacerda L, Palu CC, Ribeiro-Alves M, Paredes BD, Morrot A, Garcia-Silva MR, Cayota A, Savino W. Differential Expression of microRNAs in Thymic Epithelial Cells from Trypanosoma cruzi Acutely Infected Mice: Putative Role in Thymic Atrophy. Front Immunol 2015; 6:428. [PMID: 26347748 PMCID: PMC4543887 DOI: 10.3389/fimmu.2015.00428] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 08/06/2015] [Indexed: 12/21/2022] Open
Abstract
A common feature seen in acute infections is a severe atrophy of the thymus. This occurs in the murine model of acute Chagas disease. Moreover, in thymuses from Trypanosoma cruzi acutely infected mice, thymocytes exhibit an increase in the density of fibronectin and laminin integrin-type receptors, with an increase in migratory response ex vivo. Thymic epithelial cells (TEC) play a major role in the intrathymic T cell differentiation. To date, the consequences of molecular changes promoted by parasite infection upon thymus have not been elucidated. Considering the importance of microRNA for gene expression regulation, 85 microRNAs (mRNAs) were analyzed in TEC from T. cruzi acutely infected mice. The infection significantly modulated 29 miRNAs and modulation of 9 was also dependent whether TEC sorted out from the thymus exhibited cortical or medullary phenotype. In silico analysis revealed that these miRNAs may control target mRNAs known to be responsible for chemotaxis, cell adhesion, and cell death. Considering that we sorted TEC in the initial phase of thymocyte loss, it is conceivable that changes in TEC miRNA expression profile are functionally related to thymic atrophy, providing new clues to better understanding the mechanisms of the thymic involution seen in experimental Chagas disease.
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Affiliation(s)
- Leandra Linhares-Lacerda
- Laboratory on Thymus Research, Institute Oswaldo Cruz, Oswaldo Cruz Foundation , Rio de Janeiro , Brazil
| | - Cintia Cristina Palu
- Laboratory on Thymus Research, Institute Oswaldo Cruz, Oswaldo Cruz Foundation , Rio de Janeiro , Brazil
| | - Marcelo Ribeiro-Alves
- HIV/AIDS Clinical Research Center, National Institute of Infectious Diseases, Oswaldo Cruz Foundation , Rio de Janeiro , Brazil
| | - Bruno Diaz Paredes
- The National Institute of Science and Technology for Structural Biology and Bioimaging, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Alexandre Morrot
- Department of Immunology, Microbiology Institute, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | | | - Alfonso Cayota
- Functional Genomics Unit, Institut Pasteur de Montevideo , Montevideo , Uruguay
| | - Wilson Savino
- Laboratory on Thymus Research, Institute Oswaldo Cruz, Oswaldo Cruz Foundation , Rio de Janeiro , Brazil
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MiR-183 Regulates ITGB1P Expression and Promotes Invasion of Endometrial Stromal Cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:340218. [PMID: 26357653 PMCID: PMC4556833 DOI: 10.1155/2015/340218] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 02/24/2015] [Indexed: 12/18/2022]
Abstract
We applied in the previous study miRNA microarray screening analysis to identify several differentially expressed miRNAs, including miR-183 in normal, eutopic, and ectopic endometrium. Knockdown of miR-183 expression induced the invasiveness and inhibition of apoptosis in endometrial stromal cells. The current study aims to identify the miR-183 targets with relevance to cell functions in endometrial stromal cells, to verify the interaction of miR-183 with its target genes, and to confirm the role of miR-183 in the process of endometriosis. Using microarray analysis, we identified 27 differentially expressed genes (19 were upregulated and 8 downregulated), from which we selected 4 downregulated genes (ITGB1, AMIGO2, VAV3, and PSEN2) based on GO databases for functional analysis and significant pathway analysis. Western blotting analyses showed that integrin β1 (ITGB1), but not AMIGO2, was affected by miR-183 overexpression, whereas no protein expression of VAV3 and PSEN2 was detected. Luciferase reporter assay verified that ITGB1 is a target gene of miR-183. Moreover, we found that ITGB1 is overexpressed in the endometrium of endometriosis patients. Furthermore, overexpression of ITGB1 rescued the repressive effects of miR-183 on the invasiveness of endometrial stromal cells. These findings, together with the fact that ITGB1 is a critical factor for cell adhesion and invasiveness, suggest that miR-183 may be involved in the development of endometriosis by regulating ITGB1 in endometrial stromal cells.
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WEI CHUANKUI, SONG HONGMING, SUN XIAOGUO, LI DENGFENG, SONG JIALU, HUA KAIYAO, FANG LIN. miR-183 regulates biological behavior in papillary thyroid carcinoma by targeting the programmed cell death 4. Oncol Rep 2015; 34:211-20. [DOI: 10.3892/or.2015.3971] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 04/30/2015] [Indexed: 11/05/2022] Open
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Raghunath A, Perumal E. Micro-RNAs and Their Roles in Eye Disorders. Ophthalmic Res 2015; 53:169-86. [DOI: 10.1159/000371853] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 01/04/2015] [Indexed: 11/19/2022]
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The miR-200 family and the miR-183~96~182 cluster target Foxf2 to inhibit invasion and metastasis in lung cancers. Oncogene 2015; 35:173-86. [PMID: 25798833 PMCID: PMC4580489 DOI: 10.1038/onc.2015.71] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 01/25/2015] [Accepted: 02/02/2015] [Indexed: 12/12/2022]
Abstract
Metastatic lung cancer is one of the most lethal forms of cancer and molecular pathways driving metastasis are still not clearly elucidated. Metastatic cancer cells undergo an epithelial-mesenchymal transition (EMT) where they lose their epithelial properties and acquire a migratory and invasive phenotype. Here we identify that expression of microRNAs from the miR-200 family and the miR-183~96~182 cluster are significantly co-repressed in non-small cell lung cancer (NSCLC) cell lines and primary tumors from multiple TCGA data sets with high EMT scores. Ectopic expression of the miR-183~96~182 cluster inhibited cancer cell migration and invasion, while its expression was tightly modulated by miR-200. We identified Foxf2 as a common, novel and direct target of both these microRNA families. Foxf2 expression tightly correlates with the transcription factor Zeb1 and is elevated in mesenchymal-like metastatic lung cancer cells. Foxf2 expression induced robust EMT, migration, invasion and metastasis in lung cancer cells, whereas Foxf2 inhibition significantly repressed these phenotypes. We also demonstrated that Foxf2 transcriptionally represses E-Cadherin and miR-200, independent of Zeb1, to form a double negative feedback loop. We therefore identified a novel mechanism whereby the miR-200 family and the miR-183~96~182 cluster inhibit lung cancer invasion and metastasis by targeting Foxf2.
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Arsenic responsive microRNAs in vivo and their potential involvement in arsenic-induced oxidative stress. Toxicol Appl Pharmacol 2015; 283:198-209. [PMID: 25625412 DOI: 10.1016/j.taap.2015.01.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 01/14/2015] [Accepted: 01/17/2015] [Indexed: 12/18/2022]
Abstract
Arsenic exposure is postulated to modify microRNA (miRNA) expression, leading to changes of gene expression and toxicities, but studies relating the responses of miRNAs to arsenic exposure are lacking, especially with respect to in vivo studies. We utilized high-throughput sequencing technology and generated miRNA expression profiles of liver tissues from Sprague Dawley (SD) rats exposed to various concentrations of sodium arsenite (0, 0.1, 1, 10 and 100mg/L) for 60days. Unsupervised hierarchical clustering analysis of the miRNA expression profiles clustered the SD rats into different groups based on the arsenic exposure status, indicating a highly significant association between arsenic exposure and cluster membership (p-value of 0.0012). Multiple miRNA expressions were altered by arsenic in an exposure concentration-dependent manner. Among the identified arsenic-responsive miRNAs, several are predicted to target Nfe2l2-regulated antioxidant genes, including glutamate-cysteine ligase (GCL) catalytic subunit (GCLC) and modifier subunit (GCLM) which are involved in glutathione (GSH) synthesis. Exposure to low concentrations of arsenic increased mRNA expression for Gclc and Gclm, while high concentrations significantly reduced their expression, which were correlated to changes in hepatic GCL activity and GSH level. Moreover, our data suggested that other mechanisms, e.g., miRNAs, rather than Nfe2l2-signaling pathway, could be involved in the regulation of mRNA expression of Gclc and Gclm post-arsenic exposure in vivo. Together, our findings show that arsenic exposure disrupts the genome-wide expression of miRNAs in vivo, which could lead to the biological consequence, such as an altered balance of antioxidant defense and oxidative stress.
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Challagundla KB, Fanini F, Vannini I, Wise P, Murtadha M, Malinconico L, Cimmino A, Fabbri M. microRNAs in the tumor microenvironment: solving the riddle for a better diagnostics. Expert Rev Mol Diagn 2015; 14:565-74. [PMID: 24844135 DOI: 10.1586/14737159.2014.922879] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
miRNAs are small noncoding RNAs with gene regulatory functions, frequently dysregulated in human cancers. Specific signatures of differentially expressed miRNAs can be used in the diagnosis of cancer and in some cases harbor prognostic implications. The biology of cancer is dictated not only by cancer cells but also by the surrounding tumor microenvironment. In particular, the role of miRNAs within the tumor microenvironment is emerging as of paramount importance. This review will focus on the current knowledge of the role of miRNAs and both cellular and stromal components of the tumor microenvironment. We will also discuss more recent findings, showing that miRNAs can be found inside of exosomes and mediate the cross-talk between cancer cells and surrounding cells, leading to the discovery of new fascinating molecular mechanisms leading to a better understanding of the cancer 'niche' and how these noncoding RNAs can become very promising diagnostic molecules.
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Affiliation(s)
- Kishore B Challagundla
- Departments of Pediatrics and Molecular Microbiology & Immunology, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Saban Research Institute, Children's Center for Cancer and Blood Diseases, Children's Hospital Los Angeles, Los Angeles, CA, USA
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Lu YY, Zheng JY, Liu J, Huang CL, Zhang W, Zeng Y. miR-183 induces cell proliferation, migration, and invasion by regulating PDCD4 expression in the SW1990 pancreatic cancer cell line. Biomed Pharmacother 2015; 70:151-7. [PMID: 25776494 DOI: 10.1016/j.biopha.2015.01.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 01/04/2015] [Indexed: 01/01/2023] Open
Abstract
The aim of this study was to investigate the function of miR-183 in the SW1990 cancer cell line, and the mechanisms regulating these processes. miRNAs are known to play important roles in cancer cell development. However, the pattern and biological role of miR-183 in pancreatic cancer remain largely unknown. Here, we have reported the reduction in pancreatic cancer cell growth in vitro by miR-183 intervention, by inducing apoptosis and decreasing the Bcl-2 expression. Moreover, miR-183 was observed to enhance pancreatic cancer cell migration and invasion, whereas inhibition of miR-183 caused an opposite effect. miR-183 inhibition was shown to increase E-cadherin expression and decrease N-cadherin expression. These regulatory actions play an important role in the cancer epithelial-mesenchymal transition (EMT). Mechanistically, we demonstrated that the overexpression of miR-183 decreased the expression of PDCD4 (programmed cell death 4) mRNA and protein, and vice versa. This helped to identify PDCD4 as the target genes in pancreatic cancer. In conclusion, our analyses indicated miR-183 to be an important contributor to cell migration. This could also be used as a potential therapeutic target for pancreatic cancer treatment.
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Affiliation(s)
- Ying-Ying Lu
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine, 200080 Shanghai, PR China
| | - Jun-Yuan Zheng
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine, 200080 Shanghai, PR China
| | - Jie Liu
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine, 200080 Shanghai, PR China
| | - Chun-Lan Huang
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine, 200080 Shanghai, PR China
| | - Wei Zhang
- Department of Gastroenterology, Huadong Hospital, Shanghai Fudan University School of Medicine, 200040 Shanghai, PR China
| | - Yue Zeng
- Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine, 200080 Shanghai, PR China.
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Abstract
Cancer is a genetic and epigenetic disease. Multiple genetic and epigenetic changes have been studied in cervical cancer; however, such changes are selected for during tumorigenesis and tumor aggression is not yet clear. Cervical cancer is a multistep process with accumulation of genetic and epigenetic alterations in regulatory genes, leading to activation of oncogenes and inactivation or loss of tumor suppressor genes. In cervical cancer, epigenetic alterations can affect the expression of papillomaviral as well as host genes in relation to stages representing the multistep process of carcinogenesis.
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45
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Yang M, Liu R, Li X, Liao J, Pu Y, Pan E, Yin L, Wang Y. miRNA-183 suppresses apoptosis and promotes proliferation in esophageal cancer by targeting PDCD4. Mol Cells 2014; 37:873-80. [PMID: 25518924 PMCID: PMC4275704 DOI: 10.14348/molcells.2014.0147] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 09/20/2014] [Accepted: 09/22/2014] [Indexed: 02/08/2023] Open
Abstract
In our previous study, miRNA-183, a miRNA in the miR-96-182-183 cluster, was significantly over-expressed in esophageal squamous cell carcinoma (ESCC). In the present study, we explored the oncogenic roles of miR-183 in ESCC by gain and loss of function analysis in an esophageal cancer cell line (EC9706). Genome-wide mRNA microarray was applied to determine the genes that were regulated directly or indirectly by miR-183. 3'UTR luciferase reporter assay, RT-PCR, and Western blot were conducted to verify the target gene of miR-183. Cell culture results showed that miR-183 inhibited apoptosis (p < 0.05), enhanced cell proliferation (p < 0.05), and accelerated G1/S transition (p < 0.05). Moreover, the inhibitory effect of miR-183 on apoptosis was rescued when miR-183 was suppressed via miR-183 inhibitor (p < 0.05). Western blot analysis showed that the expression of programmed cell death 4 (PDCD4), which was predicted as the target gene of miR-183 by microarray profiling and bioinformatics predictions, decreased when miR-183 was over-expressed. The 3'UTR luciferase reporter assay confirmed that miR-183 directly regulated PDCD4 by binding to sequences in the 3'UTR of PDCD4. Pearson correlation analysis further confirmed the significant negative correlation between miR-183 and PDCD4 in both cell lines and in ESCC patients. Our data suggest that miR-183 might play an oncogenic role in ESCC by regulating PDCD4 expression.
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Affiliation(s)
- Miao Yang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009,
China
| | - Ran Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009,
China
| | - Xiajun Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009,
China
| | - Juan Liao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009,
China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009,
China
| | - Enchun Pan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009,
China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009,
China
| | - Yi Wang
- Huaian Center for Disease Control and Prevention, Huaian 223001,
China
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Sidiropoulos KG, White NMA, Bui A, Ding Q, Boulos P, Pampalakis G, Khella H, Samuel JN, Sotiropoulou G, Yousef GM. Kallikrein-related peptidase 5 induces miRNA-mediated anti-oncogenic pathways in breast cancer. Oncoscience 2014; 1:709-24. [PMID: 25593998 PMCID: PMC4278268 DOI: 10.18632/oncoscience.91] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 10/23/2014] [Indexed: 12/15/2022] Open
Abstract
Kallikrein-related peptidase 5 (KLK5) displays aberrant expression in cancer. Recently, we showed KLK5 reconstitution in breast cancer cell lines suppresses malignancy. Present study aims to investigate the functional KLK5 mediated miRNA network on breast cancer progression, molecular subtype and survival. 28 miRNAs were up-regulated and 62 miRNAs were down-regulated upon KLK5 expression. Extracellular matrix (ECM) molecules and cell-adhesion pathways were the most significant KLK5-induced miRNA-mediated regulatory targets. Validation from The Cancer Genome Atlas (TCGA) database indicated KLK5 was specifically down-regulated in luminal B and basal-like breast cancer subtypes. There was a correlation between KLK5, miRNAs and their downstream ECM gene targets. Long-term patient survival correlated with dysregulation of KLK5 and interacting ECM target genes. It suggests biological differences between breast cancer molecular subtypes, patient survival, and their propensity for invasion and metastasis can be explained in part by altered miRNA networks induced by KLK5 dysregulation. We provide the first evidence that KLK5 can affect miRNA networks, which regulate MMPs and other novel ECM targets and a new compelling hypothesis of interplay between serine proteases and miRNAs. We developed a combined KLK5-(ITGB1+COL12A1) predictive score for recurrence-free survival that could be exploited in clinical applications.
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Affiliation(s)
- Konstantinos G Sidiropoulos
- The Keenan Research Center for Biomedical Sciences at the Li Ka Shing Knowledge Institute and Department of Laboratory Medicine, St. Michael's Hospital, Toronto, Canada ; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Nicole M A White
- The Keenan Research Center for Biomedical Sciences at the Li Ka Shing Knowledge Institute and Department of Laboratory Medicine, St. Michael's Hospital, Toronto, Canada ; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Anna Bui
- The Keenan Research Center for Biomedical Sciences at the Li Ka Shing Knowledge Institute and Department of Laboratory Medicine, St. Michael's Hospital, Toronto, Canada
| | - Qiang Ding
- The Keenan Research Center for Biomedical Sciences at the Li Ka Shing Knowledge Institute and Department of Laboratory Medicine, St. Michael's Hospital, Toronto, Canada
| | - Peter Boulos
- The Keenan Research Center for Biomedical Sciences at the Li Ka Shing Knowledge Institute and Department of Laboratory Medicine, St. Michael's Hospital, Toronto, Canada
| | - Georgios Pampalakis
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, Greece
| | - Heba Khella
- The Keenan Research Center for Biomedical Sciences at the Li Ka Shing Knowledge Institute and Department of Laboratory Medicine, St. Michael's Hospital, Toronto, Canada
| | - Joseph N Samuel
- The Keenan Research Center for Biomedical Sciences at the Li Ka Shing Knowledge Institute and Department of Laboratory Medicine, St. Michael's Hospital, Toronto, Canada
| | - Georgia Sotiropoulou
- Department of Pharmacy, School of Health Sciences, University of Patras, Rion-Patras, Greece
| | - George M Yousef
- The Keenan Research Center for Biomedical Sciences at the Li Ka Shing Knowledge Institute and Department of Laboratory Medicine, St. Michael's Hospital, Toronto, Canada ; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
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47
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MicroRNA and diseases: therapeutic potential as new generation of drugs. Biochimie 2014; 104:12-26. [PMID: 24859535 DOI: 10.1016/j.biochi.2014.05.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 05/08/2014] [Indexed: 01/01/2023]
Abstract
MicroRNA (miRNA) is a small non-coding regulatory RNA of 21-25 nucleotides (nts) in length. miRNA works as a post-transcriptional regulator of a specific mRNA by inducing degradation or translation repression resulting in gene silencing. A large number of miRNA have been reported and many more are yet to be discovered. Aberrant expression of miRNA has been linked to numerous diseases. Attempts have been made to attenuate miRNA misregulation under pathophysiological conditions. Additionally, the potential use of miRNA in the diagnosis and treatment of diseases has been studied. Several preclinical and clinical results have been obtained, and miRNA-based therapeutics are still under investigations. In this review, the role of miRNA in a variety of pathological conditions has been summarized. Recent findings from preclinical and clinical investigations examining the role of miRNA as diagnostic markers, and their potential as drug candidates, are also highlighted. The current results summarized in this review may elucidate new dimensions of miRNA therapeutic and diagnostic techniques for biomedical academic and industry research.
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48
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Piccinini AM, Midwood KS. Illustrating the interplay between the extracellular matrix and microRNAs. Int J Exp Pathol 2014; 95:158-80. [PMID: 24761792 DOI: 10.1111/iep.12079] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 02/18/2014] [Indexed: 12/19/2022] Open
Abstract
The discovery of cell surface receptors that bind to extracellular matrix (ECM) components marked a new era in biological research. Since then there has been an increasing appreciation of the importance of studying cells in the context of their extracellular environment. Cell behaviour is profoundly affected by the ECM, whose synthesis and turnover must be finely balanced in order to maintain normal function and prevent disease. In the last decade, microRNAs (miRNAs) have emerged as key regulators of ECM gene expression. As new technologies for the identification and validation of miRNA targets continue to be developed, a growing body of data supporting the role of miRNAs in regulating the ECM biology has arisen from a variety of cell and animal models along with clinical studies. However, more recent findings suggest an intriguing interplay between the ECM and miRNAs: not only can miRNAs control the composition of the ECM, but also the ECM can affect the expression of specific miRNAs. Here we discuss how miRNAs contribute to the synthesis, maintenance and remodelling of the ECM during development and disease. Furthermore, we bring to light evidence that points to a role for the ECM in regulating miRNA expression and function.
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Affiliation(s)
- Anna M Piccinini
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, UK
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Wang J, Wang X, Li Z, Liu H, Teng Y. MicroRNA-183 suppresses retinoblastoma cell growth, invasion and migration by targeting LRP6. FEBS J 2014; 281:1355-1365. [PMID: 24289859 DOI: 10.1111/febs.12659] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 11/23/2013] [Accepted: 11/25/2013] [Indexed: 12/30/2022]
Abstract
Our study demonstrates the downregulation of microRNA-183 (miR-183) in retinoblastoma (RB) tissues and RB cell lines compared with normal retinal tissues. The ectopic expression of miR-183 in the RB cell lines Y79, SO-RB50 and WERI-RB1 suppresses cell viability, migration and invasion. Furthermore, the Wnt co-receptor low-density lipoprotein receptor-related protein 6 (LRP6) was identified as a new target of miR-183, and restoration of the expression of LRP6 rescues the effects induced by miR-183 in RB cells. These results indicate that miR-183 targets and downregulates LRP6 in the growth, migration and invasion of RB cells.
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Affiliation(s)
- Jianwen Wang
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, China
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Ibrahim SA, Hassan H, Götte M. MicroRNA-dependent targeting of the extracellular matrix as a mechanism of regulating cell behavior. Biochim Biophys Acta Gen Subj 2014; 1840:2609-20. [PMID: 24462576 DOI: 10.1016/j.bbagen.2014.01.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 01/13/2014] [Accepted: 01/15/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND MicroRNAs are small noncoding RNAs which regulate gene expression at the posttranscriptional level by inducing mRNA degradation or translational repression. MicroRNA-dependent modulation of the extracellular matrix and its cellular receptors has emerged as a novel mechanism of regulating numerous matrix-dependent processes, including cell proliferation and apoptosis, cell adhesion and migration, cell differentiation and stem cell properties. SCOPE OF REVIEW In this review, we will present different mechanisms by which microRNAs and extracellular matrix constituents mutually regulate their expression, and we will demonstrate how these expression changes affect cell behavior. We will also highlight the importance of dysregulated matrix-related microRNA expression for the pathogenesis of inflammatory and malignant disease, and discuss the potential for diagnostic and therapeutic applications. MAJOR CONCLUSIONS MicroRNAs and matrix-dependent signal transduction processes form novel regulatory circuits, which profoundly affect cell behavior. As misexpression of microRNAs targeting extracellular matrix constituents is observed in a variety of diseases, a pharmacological intervention with these processes has therapeutic potential, as successfully demonstrated in vitro and in advanced animal models. However, a deeper mechanistic understanding is required to address potential side effects prior to clinical applications in humans. GENERAL SIGNIFICANCE A full understanding of the role and function of microRNA-dependent regulation of the extracellular matrix may lead to new targeted therapies and new diagnostics for malignant and inflammatory diseases in humans. This article is part of a Special Issue entitled Matrix-mediated cell behaviour and properties.
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Affiliation(s)
| | - Hebatallah Hassan
- Department of Zoology, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Martin Götte
- Department of Gynecology and Obstetrics, Münster University Hospital, Albert-Schweitzer-Campus 1, D11, 48149 Münster, Germany.
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