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Sobolewski C, Dubuquoy L, Legrand N. MicroRNAs, Tristetraprolin Family Members and HuR: A Complex Interplay Controlling Cancer-Related Processes. Cancers (Basel) 2022; 14:cancers14143516. [PMID: 35884580 PMCID: PMC9319505 DOI: 10.3390/cancers14143516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/15/2022] [Accepted: 07/18/2022] [Indexed: 12/17/2022] Open
Abstract
Simple Summary AU-rich Element Binding Proteins (AUBPs) represent important post-transcriptional regulators of gene expression by regulating mRNA decay and/or translation. Importantly, AUBPs can interfere with microRNA-dependent regulation by (i) competing with the same binding sites on mRNA targets, (ii) sequestering miRNAs, thereby preventing their binding to their specific targets or (iii) promoting miRNA-dependent regulation. These data highlight a new paradigm where both miRNA and RNA binding proteins form a complex regulatory network involved in physiological and pathological processes. However, this interplay is still poorly considered, and our current models do not integrate this level of complexity, thus potentially giving misleading interpretations regarding the role of these regulators in human cancers. This review summarizes the current knowledge regarding the crosstalks existing between HuR, tristetraprolin family members and microRNA-dependent regulation. Abstract MicroRNAs represent the most characterized post-transcriptional regulators of gene expression. Their altered expression importantly contributes to the development of a wide range of metabolic and inflammatory diseases but also cancers. Accordingly, a myriad of studies has suggested novel therapeutic approaches aiming at inhibiting or restoring the expression of miRNAs in human diseases. However, the influence of other trans-acting factors, such as long-noncoding RNAs or RNA-Binding-Proteins, which compete, interfere, or cooperate with miRNAs-dependent functions, indicate that this regulatory mechanism is much more complex than initially thought, thus questioning the current models considering individuals regulators. In this review, we discuss the interplay existing between miRNAs and the AU-Rich Element Binding Proteins (AUBPs), HuR and tristetraprolin family members (TTP, BRF1 and BRF2), which importantly control the fate of mRNA and whose alterations have also been associated with the development of a wide range of chronic disorders and cancers. Deciphering the interplay between these proteins and miRNAs represents an important challenge to fully characterize the post-transcriptional regulation of pro-tumorigenic processes and design new and efficient therapeutic approaches.
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Aloufi N, Alluli A, Eidelman DH, Baglole CJ. Aberrant Post-Transcriptional Regulation of Protein Expression in the Development of Chronic Obstructive Pulmonary Disease. Int J Mol Sci 2021; 22:ijms222111963. [PMID: 34769392 PMCID: PMC8584689 DOI: 10.3390/ijms222111963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is an incurable and prevalent respiratory disorder that is characterized by chronic inflammation and emphysema. COPD is primarily caused by cigarette smoke (CS). CS alters numerous cellular processes, including the post-transcriptional regulation of mRNAs. The identification of RNA-binding proteins (RBPs), microRNAs (miRNAs), and long non-coding RNAs (lncRNAs) as main factors engaged in the regulation of RNA biology opens the door to understanding their role in coordinating physiological cellular processes. Dysregulation of post-transcriptional regulation by foreign particles in CS may lead to the development of diseases such as COPD. Here we review current knowledge about post-transcriptional events that may be involved in the pathogenesis of COPD.
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Affiliation(s)
- Noof Aloufi
- Department of Pathology, McGill University, Montreal, QC H3A 2B4, Canada; (N.A.); (A.A.)
- Department of Medical Laboratory Technology, Applied Medical Science, Taibah University, Universities Road, Medina P.O. Box 344, Saudi Arabia
| | - Aeshah Alluli
- Department of Pathology, McGill University, Montreal, QC H3A 2B4, Canada; (N.A.); (A.A.)
| | - David H. Eidelman
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada;
| | - Carolyn J. Baglole
- Department of Pathology, McGill University, Montreal, QC H3A 2B4, Canada; (N.A.); (A.A.)
- Department of Medicine, McGill University, Montreal, QC H4A 3J1, Canada;
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC H3G 1Y6, Canada
- Correspondence:
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Mohanan NK, Shaji F, Koshre GR, Laishram RS. Alternative polyadenylation: An enigma of transcript length variation in health and disease. WILEY INTERDISCIPLINARY REVIEWS-RNA 2021; 13:e1692. [PMID: 34581021 DOI: 10.1002/wrna.1692] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/16/2021] [Accepted: 08/24/2021] [Indexed: 12/19/2022]
Abstract
Alternative polyadenylation (APA) is a molecular mechanism during a pre-mRNA processing that involves usage of more than one polyadenylation site (PA-site) generating transcripts of varying length from a single gene. The location of a PA-site affects transcript length and coding potential of an mRNA contributing to both mRNA and protein diversification. This variation in the transcript length affects mRNA stability and translation, mRNA subcellular and tissue localization, and protein function. APA is now considered as an important regulatory mechanism in the pathophysiology of human diseases. An important consequence of the changes in the length of 3'-untranslated region (UTR) from disease-induced APA is altered protein expression. Yet, the relationship between 3'-UTR length and protein expression remains a paradox in a majority of diseases. Here, we review occurrence of APA, mechanism of PA-site selection, and consequences of transcript length variation in different diseases. Emerging evidence reveals coordinated involvement of core RNA processing factors including poly(A) polymerases in the PA-site selection in diseases-associated APAs. Targeting such APA regulators will be therapeutically significant in combating drug resistance in cancer and other complex diseases. This article is categorized under: RNA Processing > 3' End Processing RNA in Disease and Development > RNA in Disease Translation > Regulation.
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Affiliation(s)
- Neeraja K Mohanan
- Cardiovascular and Diabetes Biology Group, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
- Manipal Academy of Higher Education, Manipal, India
| | - Feba Shaji
- Cardiovascular and Diabetes Biology Group, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Ganesh R Koshre
- Cardiovascular and Diabetes Biology Group, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
- Manipal Academy of Higher Education, Manipal, India
| | - Rakesh S Laishram
- Cardiovascular and Diabetes Biology Group, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
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Gong Z, Huang W, Wang B, Liang N, Long S, Li W, Zhou Q. Interplay between cyclooxygenase‑2 and microRNAs in cancer (Review). Mol Med Rep 2021; 23:347. [PMID: 33760116 PMCID: PMC7974460 DOI: 10.3892/mmr.2021.11986] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/23/2021] [Indexed: 02/06/2023] Open
Abstract
Tumor‑associated inflammation and aberrantly expressed biomarkers have been demonstrated to play crucial roles in the cancer microenvironment. Cyclooxygenase‑2 (COX‑2), a prominent inflammatory factor, is highly expressed in tumor cells and contributes to tumor growth, recurrence and metastasis. Overexpression of COX‑2 may occur at both transcriptional and post‑transcriptional levels. Thus, an improved understanding of the regulatory mechanisms of COX‑2 can facilitate the development of novel antitumor therapies. MicroRNAs (miRNAs) are a group of small non‑coding RNAs that act as translation repressors of target mRNAs, and play vital roles in regulating cancer development and progression. The present review discusses the association between miRNAs and COX‑2 expression in different types of cancer. Understanding the regulatory role of miRNAs in COX‑2 post‑transcription can provide novel insight for suppressing COX‑2 expression via gene silencing mechanisms, which offer new perspectives and future directions for the development of novel COX‑2 selective inhibitors based on miRNAs.
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Affiliation(s)
- Zexiong Gong
- Department of Anesthesiology, Affiliated Nanhua Hospital, University of South China, Hengyang, Hunan 421002, P.R. China
| | - Weiguo Huang
- Cancer Research Institute, Medical College of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Baiyun Wang
- Department of Anesthesiology, Affiliated Nanhua Hospital, University of South China, Hengyang, Hunan 421002, P.R. China
| | - Na Liang
- Department of Anesthesiology, Affiliated Nanhua Hospital, University of South China, Hengyang, Hunan 421002, P.R. China
| | - Songkai Long
- Department of Anesthesiology, Affiliated Nanhua Hospital, University of South China, Hengyang, Hunan 421002, P.R. China
| | - Wanjun Li
- Department of Anesthesiology, Affiliated Nanhua Hospital, University of South China, Hengyang, Hunan 421002, P.R. China
| | - Qier Zhou
- Department of Anesthesiology, Affiliated Nanhua Hospital, University of South China, Hengyang, Hunan 421002, P.R. China
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Liu Z, Fan P, Chen M, Xu Y, Zhao D. miRNAs and Leukotrienes in Respiratory Syncytial Virus Infection. Front Pediatr 2021; 9:602195. [PMID: 33996675 PMCID: PMC8116547 DOI: 10.3389/fped.2021.602195] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 03/17/2021] [Indexed: 01/03/2023] Open
Abstract
MicroRNAs (miRNAs) are small, non-coding RNAs that regulate posttranscription by binding to 3'-untranslated regions of target mRNAs. Recent functional studies have elucidated mechanisms that miRNAs regulate leukotriene synthesis by perturbing arachidonic acid metabolism. Both microarrays and high-throughput sequencing revealed distinct differential expression of miRNAs in children with respiratory syncytial virus (RSV) infection compared with healthy controls. Abnormal miRNA expression may contribute to higher leukotriene levels, which is associated with airway hyperreactivity. Targeting miRNAs may benefit to restore the homeostasis of inflammatory reaction and provide new strategies to alleviate airway hyperreactivity induced by RSV. In this article, we provide an overview of the current knowledge about miRNAs modulating leukotrienes through regulation of arachidonic acid metabolism with a special focus on miRNAs aberrantly expressed in children with RSV infection.
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Affiliation(s)
- Zhi Liu
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Panpan Fan
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ming Chen
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China.,Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Yueshi Xu
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Dongchi Zhao
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China
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Tian Y, Cui L, Lin C, Wang Y, Liu Z, Miao X. LncRNA CDKN2B-AS1 relieved inflammation of ulcerative colitis via sponging miR-16 and miR-195. Int Immunopharmacol 2020; 88:106970. [PMID: 33182065 DOI: 10.1016/j.intimp.2020.106970] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/13/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND This study was aimed to explore the differential expression of lncRNA CDKN2B-AS1-miR-195-5p/miR-16-5p axis in ulcerative colitis (UC) and its role in regulating UC pathogenesis. METHODS One hundred and eighty-seven UC patients and one hundred and fifty-two healthy volunteers were recruited, and their blood samples were collected. Inflammatory cytokines in serum were determined with ELISA, and lncRNA CDKN2B-AS1, miR-195-5p and miR-16-5p levels were detected with RT-PCR. Then pcDNA3.1-CDKN2B-AS1, si-CDKN2B-AS1, miR-195-5p mimic, miR-195-5p inhibitor, miR-16-5p mimic and miR-16-5p inhibitor were transfected into HT29 cells, and proliferation and apoptosis of the cells were assessed. Dual-luciferase reporter gene assay was implemented to identify the sponging relationship between lncRNA CDKN2B-AS1 and miR-195-5p/miR-16-5p. RESULTS CDKN2B-AS1 level was negatively correlated with levels of inflammatory cytokines, including TNF-α, IL-6 and sIL-2R, yet miR-16-5p and miR-195-5p levels were negatively correlated with the CDKN2B-AS1 level. The CDKN2B-AS1 combined with miR-16-5p and miR-195-5p also achieved an optimum efficacy in differentiating between light and medium UC, light and severe UC, as well as medium and heavy UC. Furthermore, pcDNA3.1-CDKN2B-AS1 depressed expressions of IFN-γ, IL-8, IL-1β and TNF-α in HT29 cells (P < 0.05), and strengthened proliferation of the cells (P < 0.05). CDKN2B-AS1 also sponged and regulated miR-16-5p and miR-195-5p in HT29 cells, and miR-16-5p and miR-195-5p could reverse the effect of CDKN2B-AS1 on inflammatory cytokine production, barrier function and apoptosis of HT29 cells (P < 0.05). CONCLUSION LncRNA CDKN2B-AS1 regulated inflammation of UC by sponging miR-195-5p and miR-16-5p, providing an alternative for diagnosis and treatment of UC.
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Affiliation(s)
- Yuanyuan Tian
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China
| | - Lujia Cui
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China
| | - Cheng Lin
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China
| | - Yuxuan Wang
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China
| | - Zhanju Liu
- Department of Pathology, Haikou Hospital of Traditional Chinese Medicine, Haikou City, Hainan Province 570216, China
| | - Xinpu Miao
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China.
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mRNA Post-Transcriptional Regulation by AU-Rich Element-Binding Proteins in Liver Inflammation and Cancer. Int J Mol Sci 2020; 21:ijms21186648. [PMID: 32932781 PMCID: PMC7554771 DOI: 10.3390/ijms21186648] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/09/2020] [Accepted: 09/09/2020] [Indexed: 12/12/2022] Open
Abstract
AU-rich element-binding proteins (AUBPs) represent important post-transcriptional regulators of gene expression. AUBPs can bind to the AU-rich elements present in the 3'-UTR of more than 8% of all mRNAs and are thereby able to control the stability and/or translation of numerous target mRNAs. The regulation of the stability and the translation of mRNA transcripts by AUBPs are highly complex processes that occur through multiple mechanisms depending on the cell type and the cellular context. While AUBPs have been shown to be involved in inflammatory processes and the development of various cancers, their important role and function in the development of chronic metabolic and inflammatory fatty liver diseases (FLDs), as well as in the progression of these disorders toward cancers such as hepatocellular carcinoma (HCC), has recently started to emerge. Alterations of either the expression or activity of AUBPs are indeed significantly associated with FLDs and HCC, and accumulating evidence indicates that several AUBPs are deeply involved in a significant number of cellular processes governing hepatic metabolic disorders, inflammation, fibrosis, and carcinogenesis. Herein, we discuss our current knowledge of the roles and functions of AUBPs in liver diseases and cancer. The relevance of AUBPs as potential biomarkers for different stages of FLD and HCC, or as therapeutic targets for these diseases, are also highlighted.
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8
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The RNA-Binding Protein HuR in Digestive System Tumors. BIOMED RESEARCH INTERNATIONAL 2020; 2020:9656051. [PMID: 32775456 PMCID: PMC7396115 DOI: 10.1155/2020/9656051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/18/2020] [Indexed: 12/13/2022]
Abstract
Human antigen R (HuR) is a member of the Hu family of RNA-binding proteins. This molecule, which was first described in tumors nearly two decades ago, has recently received much attention in tumor-related research because it regulates the expression of many tumor-associated molecules through posttranscriptional regulatory mechanisms, thereby affecting biological characteristics. It is suggested that HuR might be a novel therapeutic target and a marker for therapeutic response and prognostic assessment. Increasing evidence supports that HuR also plays critical roles in the development, therapy, and prognosis of digestive system tumors. Herein, we review the relationships between HuR and digestive system tumors, demonstrating the importance of HuR in digestive system tumor diagnosis.
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9
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Saul MJ, Emmerich AC, Steinhilber D, Suess B. Regulation of Eicosanoid Pathways by MicroRNAs. Front Pharmacol 2019; 10:824. [PMID: 31379585 PMCID: PMC6659501 DOI: 10.3389/fphar.2019.00824] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 06/26/2019] [Indexed: 01/07/2023] Open
Abstract
Over the last years, many microRNAs (miRNAs) have been identified that regulate the formation of bioactive lipid mediators such as prostanoids and leukotrienes. Many of these miRNAs are involved in complex regulatory circuits necessary for the fine-tuning of biological functions including inflammatory processes or cell growth. A better understanding of these networks will contribute to the development of novel therapeutic strategies for the treatment of inflammatory diseases and cancer. In this review, we provide an overview of the current knowledge of miRNA regulation in eicosanoid pathways with special focus on novel miRNA functions and regulatory circuits of leukotriene and prostaglandin biosynthesis.
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Affiliation(s)
- Meike J Saul
- Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany
| | - Anne C Emmerich
- Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany.,Institute of Pharmaceutical Chemistry, Goethe Universität Frankfurt, Frankfurt, Germany
| | - Dieter Steinhilber
- Institute of Pharmaceutical Chemistry, Goethe Universität Frankfurt, Frankfurt, Germany
| | - Beatrix Suess
- Department of Biology, Technische Universität Darmstadt, Darmstadt, Germany
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10
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Jaén RI, Prieto P, Casado M, Martín-Sanz P, Boscá L. Post-translational modifications of prostaglandin-endoperoxide synthase 2 in colorectal cancer: An update. World J Gastroenterol 2018; 24:5454-5461. [PMID: 30622375 PMCID: PMC6319129 DOI: 10.3748/wjg.v24.i48.5454] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/13/2018] [Accepted: 11/16/2018] [Indexed: 02/06/2023] Open
Abstract
The biosynthesis of prostanoids is involved in both physiological and pathological processes. The expression of prostaglandin-endoperoxide synthase 2 (PTGS2; also known as COX-2) has been traditionally associated to the onset of several pathologies, from inflammation to cardiovascular, gastrointestinal and oncologic events. For this reason, the search of selective PTGS2 inhibitors has been a focus for therapeutic interventions. In addition to the classic non-steroidal anti-inflammatory drugs, selective and specific PTGS2 inhibitors, termed coxibs, have been generated and widely used. PTGS2 activity is less restrictive in terms of substrate specificity than the homeostatic counterpart PTGS1, and it accounts for the elevated prostanoid synthesis that accompanies several pathologies. The main regulation of PTGS2 occurs at the transcription level. In addition to this, the stability of the mRNA is finely regulated through the interaction with several cytoplasmic elements, ranging from specific microRNAs to proteins that control mRNA degradation. Moreover, the protein has been recognized to be the substrate for several post-translational modifications that affect both the enzyme activity and the targeting for degradation via proteasomal and non-proteasomal mechanisms. Among these modifications, phosphorylation, glycosylation and covalent modifications by reactive lipidic intermediates and by free radicals associated to the pro-inflammatory condition appear to be the main changes. Identification of these post-translational modifications is relevant to better understand the role of PTGS2 in several pathologies and to establish a correct analysis of the potential function of this protein in diseases progress. Finally, these modifications can be used as biomarkers to establish correlations with other parameters, including the immunomodulation dependent on molecular pathological epidemiology determinants, which may provide a better frame for potential therapeutic interventions.
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Affiliation(s)
- Rafael I Jaén
- Department of Metabolism and Physiopathology of Inflammatory Diseases, Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Madrid 28029, Spain
| | - Patricia Prieto
- Department of Metabolism and Physiopathology of Inflammatory Diseases, Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Madrid 28029, Spain
| | - Marta Casado
- Department of Biomedicine, Instituto de Biomedicina de Valencia (CSIC), Valencia 46010, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, y Hepáticas y Digestivas, ISCIII, Madrid 28029, Spain
| | - Paloma Martín-Sanz
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, y Hepáticas y Digestivas, ISCIII, Madrid 28029, Spain
- Unidad Asociada IIBM-ULPGC, Universidad de las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria 35001, Spain
| | - Lisardo Boscá
- Department of Metabolism and Physiopathology of Inflammatory Diseases, Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM), Madrid 28029, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, y Hepáticas y Digestivas, ISCIII, Madrid 28029, Spain
- Unidad Asociada IIBM-ULPGC, Universidad de las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria 35001, Spain
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Burgos-Aceves MA, Cohen A, Paolella G, Lepretti M, Smith Y, Faggio C, Lionetti L. Modulation of mitochondrial functions by xenobiotic-induced microRNA: From environmental sentinel organisms to mammals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:79-88. [PMID: 30015121 DOI: 10.1016/j.scitotenv.2018.07.109] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 06/08/2023]
Abstract
Mitochondria play a crucial role in energetic metabolism, signaling pathways, and overall cell viability. They are in the first line in facing cellular energy requirements in stress conditions, such as in response to xenobiotic exposure. Recently, a novel regulatory key role of microRNAs (miRNAs) in important signaling pathways in mitochondria has been proposed. Consequently, alteration in miRNAs expression by xenobiotics could outcome into mitochondrial dysfunction, reactive oxygen species overexpression, and liberation of apoptosis or necrosis activating proteins. The aim of this review is to show the highlights about mitochondria-associated miRNAs in cellular processes exposed to xenobiotic stress in different cell types involved in detoxification processes or sensitive to environmental hazards in marine sentinel organisms and mammals.
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Affiliation(s)
- Mario Alberto Burgos-Aceves
- Department of Chemistry and Biology, University of Salerno, via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Amit Cohen
- Genomic Data Analysis Unit, The Hebrew University of Jerusalem-Hadassah Medical School, P.O. Box 12272, Jerusalem 91120, Israel
| | - Gaetana Paolella
- Department of Chemistry and Biology, University of Salerno, via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Marilena Lepretti
- Department of Chemistry and Biology, University of Salerno, via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Yoav Smith
- Genomic Data Analysis Unit, The Hebrew University of Jerusalem-Hadassah Medical School, P.O. Box 12272, Jerusalem 91120, Israel
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres, 31, 98166 Messina, Italy.
| | - Lillà Lionetti
- Department of Chemistry and Biology, University of Salerno, via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
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12
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Shao Y, Li P, Zhu ST, Yue JP, Ji XJ, Ma D, Wang L, Wang YJ, Zong Y, Wu YD, Zhang ST. MiR-26a and miR-144 inhibit proliferation and metastasis of esophageal squamous cell cancer by inhibiting cyclooxygenase-2. Oncotarget 2017; 7:15173-86. [PMID: 26959737 PMCID: PMC4924778 DOI: 10.18632/oncotarget.7908] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 01/29/2016] [Indexed: 12/21/2022] Open
Abstract
The altered expression of miRNAs is involved in carcinogenesis of esophageal squamous cell carcinoma (ESCC), but whether miRNAs regulate COX-2 expression in ESCC is not clear. To this end, the expression levels of miR-26a and miR-144 in ESCC clinical tissues and cell lines were investigated by qRT-PCR. COX-2 and PEG2 were quantified by western blot and ELISA. Decrease in miR-26a and miR-144 expression in ESCC was found by a comparison between 30 pairs of ESCC tumor and adjacent normal tissues as well as in 11 ESCC cell lines (P < 0.001). Co-transfection of miR-26a and miR-144 in ESCC cell lines more significantly suppressed cell proliferation, migration, and invasion than did either miR-26a or miR-144 alone (all P < 0.001), as shown by assays of CCK8, migration and invasion and flow cytometry. The inhibitory effect of these two miRNAs in vivo was also verified in nude mice xenograft models. COX-2 was confirmed as a target of miR-26a and miR-144. In conclusion, miR-26a and miR-144 expression is downregulated in ESCC. Co-expression of miR-26a and miR-144 in ESCC cells resulted in inhibition of proliferation and metastasis in vitro and in vivo, suggesting that targeting COX-2 may be the mechanism of these two miRNAs.
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Affiliation(s)
- Ying Shao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Peng Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Sheng-Tao Zhu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Ji-Ping Yue
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Xiao-Jun Ji
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Dan Ma
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Li Wang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Yong-Jun Wang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Ye Zong
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Yong-Dong Wu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
| | - Shu-Tian Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing, China
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13
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Zhao Q, Xie D, Liu H, Wang F, Yan GY, Chen X. SSCMDA: spy and super cluster strategy for MiRNA-disease association prediction. Oncotarget 2017; 9:1826-1842. [PMID: 29416734 PMCID: PMC5788602 DOI: 10.18632/oncotarget.22812] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 10/30/2017] [Indexed: 12/23/2022] Open
Abstract
In the biological field, the identification of the associations between microRNAs (miRNAs) and diseases has been paid increasing attention as an extremely meaningful study for the clinical medicine. However, it is expensive and time-consuming to confirm miRNA-disease associations by experimental methods. Therefore, in recent years, several effective computational models for predicting the potential miRNA-disease associations have been developed. In this paper, we proposed the Spy and Super Cluster strategy for MiRNA-Disease Association prediction (SSCMDA) based on known miRNA-disease associations, integrated disease similarity and integrated miRNA similarity. For problems of mixed unknown miRNA-disease pairs containing both potential associations and real negative associations, which will lead to inaccurate prediction, spy strategy is adopted by SSCMDA to identify reliable negative samples from the unknown miRNA-disease pairs. Moreover, the super-cluster strategy could gather as many positive samples as possible to improve the accuracy of the prediction by overcoming the shortage of lacking sufficient positive training samples. As a result, the AUCs of global leave-one-out cross validation (LOOCV), local LOOCV and 5-fold cross validation were 0.9007, 0.8747 and 0.8806+/-0.0025, respectively. According to the AUC results, SSCMDA has shown a significant improvement compared with some previous models. We further carried out case studies based on various version of HMDD database to test the prediction performance robustness of SSCMDA. We also implemented case study to examine whether SSCMDA was effective for new diseases without any known associated miRNAs. As a result, a large proportion of the predicted miRNAs have been verified by experimental reports.
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Affiliation(s)
- Qi Zhao
- School of Mathematics, Liaoning University, Shenyang, China.,Research Center for Computer Simulating and Information Processing of Bio-Macromolecules of Liaoning Province, Shenyang, China
| | - Di Xie
- School of Mathematics, Liaoning University, Shenyang, China
| | - Hongsheng Liu
- Research Center for Computer Simulating and Information Processing of Bio-Macromolecules of Liaoning Province, Shenyang, China.,School of Life Science, Liaoning University, Shenyang, China
| | - Fan Wang
- School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, China.,Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, China University of Mining and Technology, Xuzhou, China
| | - Gui-Ying Yan
- Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China
| | - Xing Chen
- School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
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14
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Zhan XH, Xu QY, Tian R, Yan H, Zhang M, Wu J, Wang W, He J. MicroRNA16 regulates glioma cell proliferation, apoptosis and invasion by targeting Wip1-ATM-p53 feedback loop. Oncotarget 2017; 8:54788-54798. [PMID: 28903382 PMCID: PMC5589621 DOI: 10.18632/oncotarget.18510] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 05/27/2017] [Indexed: 01/05/2023] Open
Abstract
The present study aimed to investigate the role and underlying mechanisms of microRNA16 (miR-16) on proliferation, apoptosis and invasion of glioma cells. The cell models of miR-16 upregulation and Negative control group (NC group) were built. The cell functions of different groups were detected by colony formation assay, transwell chamber assay, proliferation, apoptosis and cycle experiments. The intracranial orthotopic transplantation animal models were built to different groups: miR-16 agomir group, miR-16 antagomir group and their NC group. The expressions of miR-16, Wip1, ATM and p53 were measured by qRT-PCR, western blot and immunohistochemistry. As a result, miR-16 overexpressed groups had lower cloning formation rate and proliferation rate, less invasive cells, higher early apoptosis rate than the control groups. G1 phase was significantly smaller compared miR-16 overexpressed groups with the control groups, and S phase significantly lesser. Cell growth was retardated. Differences were statistically significant (P <0.05). Compared with miR-16 overexpressed groups and NC groups, the Wip1 gene and protein expression were downregulated, while ATM and p53 genes, p-ATM and p-p53 proteins were upregulated. The differences were statistically significant (P <0.05). Taken together, our findings demonstrated that miR-16 suppressed glioma cell proliferation and invasion, promoted apoptosis and inhibited cell cycle by targeting Wip1-ATM-p53 signaling pathway.
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Affiliation(s)
- Xiao-Hong Zhan
- 1 School of Medicine, Shandong University, Jinan 250012, Shangdong Province, P.R. China
- 2 Department of Pathology, Anhui Provincial Cancer Hospital; Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui Province, P.R. China
- 3 Department of Pathology, The Affiliated Central Hospital of Qingdao University, Qingdao 266000, Shandong Province, P.R. China
| | - Qiu-Yan Xu
- 2 Department of Pathology, Anhui Provincial Cancer Hospital; Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui Province, P.R. China
| | - Rui Tian
- 2 Department of Pathology, Anhui Provincial Cancer Hospital; Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui Province, P.R. China
| | - Hong Yan
- 2 Department of Pathology, Anhui Provincial Cancer Hospital; Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui Province, P.R. China
| | - Min Zhang
- 2 Department of Pathology, Anhui Provincial Cancer Hospital; Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui Province, P.R. China
| | - Jing Wu
- 2 Department of Pathology, Anhui Provincial Cancer Hospital; Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui Province, P.R. China
| | - Wei Wang
- 4 Department of Medical Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei 230001, Anhui Province, P.R. China
| | - Jie He
- 1 School of Medicine, Shandong University, Jinan 250012, Shangdong Province, P.R. China
- 2 Department of Pathology, Anhui Provincial Cancer Hospital; Anhui Provincial Hospital, Anhui Medical University, Hefei 230031, Anhui Province, P.R. China
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15
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Li S, Huang Y, Huang Y, Fu Y, Tang D, Kang R, Zhou R, Fan XG. The long non-coding RNA TP73-AS1 modulates HCC cell proliferation through miR-200a-dependent HMGB1/RAGE regulation. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:51. [PMID: 28403886 PMCID: PMC5389141 DOI: 10.1186/s13046-017-0519-z] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 03/28/2017] [Indexed: 12/27/2022]
Abstract
BACKGROUND P73 antisense RNA 1 T (non-protein coding), also known as TP73-AS1, is a long non-coding RNA (lncRNA) which is involved in cell proliferation and the development of tumors. However, the exact effects and molecular mechanisms of TP73-AS1 in hepatocellular carcinoma (HCC) progression are still unknown. The present study is aimed to investigate the detailed functions and the mechanism of TP73-AS1 in regulation of HCC cell proliferation. METHODS TP73-AS1 expression in HCC tissues and cell lines was determined using real-time PCR assays; the correlation of TP73-AS1 expression with clinicopathological features of HCC was analyzed. The functions of TP73-AS1 in regulation of HCC cell proliferation was evaluated using MTT and BrdU assays. The candidate upstream miRNAs of HMGB1 were screened using miRcode, miRWalk, miRanda and Target scan, verified using real-time PCR assays. The interaction between TP73-AS1 and miR-200a was confirmed using Luciferase report gene assays. The proten levels of HMGB1 signaling-related factors in response to co-processing TP73-AS1 knockdown and miR-200a inhibition were determined using Western blot assays and ELISA. Further, miR-200a, HMGB1 mRNA and RAGE mRNA and their correlations in HCC tissues were determined. RESULTS TP73-AS1 was upregulated in HCC tissues and cell lines. High TP73-AS1 expression was correlated with worse clinicopathological features, poorer prognosis and shorter survival. Knockdown of TP73-AS1 inhibited the HCC proliferation and the expression levels of HMGB1, RAGE and NF-κB in HCC cells. By using online tools, we screened out several candidate upstream miRNAs of HMGB1, among which miR-200a overexpression inhibited HMGB1 mRNA expression the most significantly. By using luciferase assays, we confirmed that miR-200a could directly bind to TP73-AS1 and the 3'UTR of HMGB1; TP73-AS1 competed with HMGB1 for miR-200a binding. MiR-200a inhibition could up-regulate HMGB1, RAGE, NF-κB expression as well as NF-κB regulated cytokines levels, which could be partially restored by si-TP73-AS1. In HCC tissues, miR-200a was down-regulated while HMGB1 and RAGE were up-regulated; TP73-AS1 was inversely correlated with miR-200a, while positively correlated with HMGB1 and RAGE, respectively. CONCLUSION Our data indicated that TP73-AS1 might be an oncogenic lncRNA that promoted proliferation of HCC and could be regarded as a therapeutic target in human HCC.
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Affiliation(s)
- Shaling Li
- Hunan Key Laboratory of Viral Hepatitis, Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yan Huang
- Hunan Key Laboratory of Viral Hepatitis, Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yun Huang
- Department of Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yongming Fu
- Hunan Key Laboratory of Viral Hepatitis, Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Daolin Tang
- Department of Surgery, University of Pittsburgh, Pittsburgh, 15260, USA
| | - Rui Kang
- Department of Surgery, University of Pittsburgh, Pittsburgh, 15260, USA
| | - Rongrong Zhou
- Hunan Key Laboratory of Viral Hepatitis, Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, 410008, China.
| | - Xue-Gong Fan
- Hunan Key Laboratory of Viral Hepatitis, Department of Infectious Disease, Xiangya Hospital, Central South University, Changsha, 410008, China.
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16
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Rumzhum NN, Ammit AJ. Cyclooxygenase 2: its regulation, role and impact in airway inflammation. Clin Exp Allergy 2016; 46:397-410. [PMID: 26685098 DOI: 10.1111/cea.12697] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Cyclooxygenase 2 (COX-2: official gene symbol - PTGS2) has long been regarded as playing a pivotal role in the pathogenesis of airway inflammation in respiratory diseases including asthma. COX-2 can be rapidly and robustly expressed in response to a diverse range of pro-inflammatory cytokines and mediators. Thus, increased levels of COX-2 protein and prostanoid metabolites serve as key contributors to pathobiology in respiratory diseases typified by dysregulated inflammation. But COX-2 products may not be all bad: prostanoids can exert anti-inflammatory/bronchoprotective functions in airways in addition to their pro-inflammatory actions. Herein, we outline COX-2 regulation and review the diverse stimuli known to induce COX-2 in the context of airway inflammation. We discuss some of the positive and negative effects that COX-2/prostanoids can exert in in vitro and in vivo models of airway inflammation, and suggest that inhibiting COX-2 expression to repress airway inflammation may be too blunt an approach; because although it might reduce the unwanted effects of COX-2 activation, it may also negate the positive effects. Evidence suggests that prostanoids produced via COX-2 upregulation show diverse actions (and herein we focus on prostaglandin E2 as a key example); these can be either beneficial or deleterious and their impact on respiratory disease can be dictated by local concentration and specific interaction with individual receptors. We propose that understanding the regulation of COX-2 expression and associated receptor-mediated functional outcomes may reveal number of critical steps amenable to pharmacological intervention. These may prove invaluable in our quest towards future development of novel anti-inflammatory pharmacotherapeutic strategies for the treatment of airway diseases.
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Affiliation(s)
- N N Rumzhum
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, Australia
| | - A J Ammit
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, Australia
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17
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Venturutti L, Russo RIC, Rivas MA, Mercogliano MF, Izzo F, Oakley RH, Pereyra MG, De Martino M, Proietti CJ, Yankilevich P, Roa JC, Guzmán P, Cortese E, Allemand DH, Huang TH, Charreau EH, Cidlowski JA, Schillaci R, Elizalde PV. MiR-16 mediates trastuzumab and lapatinib response in ErbB-2-positive breast and gastric cancer via its novel targets CCNJ and FUBP1. Oncogene 2016; 35:6189-6202. [PMID: 27157613 PMCID: PMC5832962 DOI: 10.1038/onc.2016.151] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/26/2016] [Accepted: 03/24/2016] [Indexed: 12/11/2022]
Abstract
ErbB-2 amplification/overexpression accounts for an aggressive breast cancer (BC) subtype (ErbB-2-positive). Enhanced ErbB-2 expression was also found in gastric cancer (GC) and has been correlated with poor clinical outcome. The ErbB-2-targeted therapies trastuzumab (TZ), a monoclonal antibody, and lapatinib, a tyrosine kinase inhibitor, have proved highly beneficial. However, resistance to such therapies remains a major clinical challenge. We here revealed a novel mechanism underlying the antiproliferative effects of both agents in ErbB-2-positive BC and GC. TZ and lapatinib ability to block extracellular signal-regulated kinases 1/2 and phosphatidylinositol-3 kinase (PI3K)/AKT in sensitive cells inhibits c-Myc activation, which results in upregulation of miR-16. Forced expression of miR-16 inhibited in vitro proliferation in BC and GC cells, both sensitive and resistant to TZ and lapatinib, as well as in a preclinical BC model resistant to these agents. This reveals miR-16 role as tumor suppressor in ErbB-2-positive BC and GC. Using genome-wide expression studies and miRNA target prediction algorithms, we identified cyclin J and far upstream element-binding protein 1 (FUBP1) as novel miR-16 targets, which mediate miR-16 antiproliferative effects. Supporting the clinical relevance of our results, we found that high levels of miR-16 and low or null FUBP1 expression correlate with TZ response in ErbB-2-positive primary BCs. These findings highlight a potential role of miR-16 and FUBP1 as biomarkers of sensitivity to TZ therapy. Furthermore, we revealed miR-16 as an innovative therapeutic agent for TZ- and lapatinib-resistant ErbB-2-positive BC and GC.
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Affiliation(s)
- L Venturutti
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - RI Cordo Russo
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - MA Rivas
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - MF Mercogliano
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - F Izzo
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - RH Oakley
- Department of Health and Human Services, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - MG Pereyra
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
- Servicio de Anatomía Patológica, Hospital General de Agudos ‘Juan A Fernández’, Buenos Aires, Argentina
| | - M De Martino
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - CJ Proietti
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - P Yankilevich
- Instituto de Investigación en Biomedicina de Buenos Aires, CONICET—Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - JC Roa
- Departamento de Anatomía Patológica (BIOREN), Universidad de La Frontera, Temuco, Chile
- Departamento de Anatomía Patológica, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago de Chile, Chile
- Advanced Center for Chronic Diseases (ACCDIS), Pontificia Universidad Católica de Chile, Santiago de Chile, Santiago, Chile
| | - P Guzmán
- Departamento de Anatomía Patológica (BIOREN), Universidad de La Frontera, Temuco, Chile
| | - E Cortese
- Servicio de Ginecología, Hospital Aeronáutico Central, Buenos Aires, Argentina
| | - DH Allemand
- Unidad de Patología Mamaria, Hospital General de Agudos ‘Juan A Fernández’, Buenos Aires, Argentina
| | - TH Huang
- Department of Molecular Medicine/Institute of Biotechnology, Cancer Therapy and Research Center, University of Texas, San Antonio, TX, USA
| | - EH Charreau
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - JA Cidlowski
- Department of Health and Human Services, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - R Schillaci
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
| | - PV Elizalde
- Laboratory of Molecular Mechanisms of Carcinogenesis, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
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18
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Nikiforova ZN, Taipov MA, Kudryavcev IA, Shevchenko VE. [The connection of miR-21 and miR-155 with regulation of 15-HPGDH mRNA in human breast cancer cells]. BIOMEDIT︠S︡INSKAI︠A︡ KHIMII︠A︡ 2016; 62:265-71. [PMID: 27420617 DOI: 10.18097/pbmc20166203265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Breast cancer is the most frequent cancer and the leading cause of cancer-related deaths in women worldwide. We determined the expression of COX2, COX1, 15-HPGDH mRNA and miRNAs (miR-21, miR-155) in three estrogen positive human breast cancer cell lines (MCF-7, BT-474, ZR-75-1). According to the results of three independent experiments the amount of COX1 and COX2 mRNA was significantly higher in the ZR-75-1 than in MCF-7 and BT-474 cells. Levels of total 15-HPGDH; functional 15-HPGDH mRNA in BT-474 cell line were lower than in MCF-7 and ZR-75-1 ones. The synthesis of 15-HPGDH enzyme in BT-474 line was blocked at the nuclear immature pre-mRNA processing level. miR-155 expression level was significantly lower than miR-21 in breast cancer cell lines. Correlations between the dysregulation of miR-21, miR-155 and 15-HPGDH, COX-1, COX-2 mRNA were identified. Expression of miR-21 was high in MCF-7, ZR-75-1 and BT-474 cell lines. Our results show that miR-21 and miR-155 regulate activity of several genes in cancer cells, their effect on the individual genes was in some cases cumulative. Based on our results, we concluded that miR-21, miR-155 suppress the work of tumor suppressor gene 15-HPGDH and induce potential oncogene COX-2 that promotes cell malignancy and metastasis of breast cancer.
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Affiliation(s)
| | - M A Taipov
- Blokhin Russian Cancer Research Center, Moscow, Russia
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19
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Abstract
Since their first discovery in chronic lymphocytic leukemia, miR-15a and miR-16 have been reported to act as tumor suppressors or potential oncomiRs in different types of cancer. This review summarizes the history, biological properties and the important functions of these two miRNAs in cancer. It also introduces their roles as regulators of immune responses and angiogenesis, endogenous controls as well as potential targets and hallmarks of cancer.
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Affiliation(s)
- Enyu Huang
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Ronghua Liu
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Yiwei Chu
- Department of Immunology, Key Laboratory of Medical Molecular Virology of MOE/MOH, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China.,Biotherapy Research Center, Fudan University, Shanghai 200032, People's Republic of China
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20
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Wang Y, Tian Y. miRNA for diagnosis and clinical implications of human hepatocellular carcinoma. Hepatol Res 2016; 46:89-99. [PMID: 26284466 DOI: 10.1111/hepr.12571] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 06/12/2015] [Accepted: 08/10/2015] [Indexed: 12/14/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the most prevalent malignancies, as a result of being asymptomatic at early stage, subsequent late clinical confirmation and poor prognosis. It is urgent to search more accurate biomarkers for diagnosing early HCC and predicting prognosis. Many factors participate in liver carcinogenesis, including dysregulation of miRNA. miRNA were endogenously expressed non-coding single-stranded small RNA with 19-25 nucleotides. Accumulating evidences have showed that miRNA from circulation and solitary tumors may be useful to classify the differentiation degree and stages of HCC, detect the hepatitis B/C virus-related HCC, and predict the survival rate after surgical resection or orthotopic liver transplantation. In this review, we summarize dysregulated miRNA, their roles in diagnosis and clinical implications of HCC.
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Affiliation(s)
- Yurong Wang
- Core Laboratory of Translational Medicine, Chinese PLA General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Yaping Tian
- Core Laboratory of Translational Medicine, Chinese PLA General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
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21
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Motiño O, Francés DE, Mayoral R, Castro-Sánchez L, Fernández-Velasco M, Boscá L, García-Monzón C, Brea R, Casado M, Agra N, Martín-Sanz P. Regulation of MicroRNA 183 by Cyclooxygenase 2 in Liver Is DEAD-Box Helicase p68 (DDX5) Dependent: Role in Insulin Signaling. Mol Cell Biol 2015; 35:2554-67. [PMID: 25963660 PMCID: PMC4475926 DOI: 10.1128/mcb.00198-15] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 05/06/2015] [Indexed: 02/07/2023] Open
Abstract
Cyclooxygenase (COX) catalyzes the first step in prostanoid biosynthesis and exists as two isoforms. COX-1 is a constitutive enzyme involved in physiological processes, whereas COX-2 is induced by a variety of stimuli. MicroRNAs (miRNAs) are noncoding RNAs that function as key posttranscriptional regulators of gene expression. Although it is known that COX-2 expression is regulated by miRNAs, there are no data regarding COX-2 involvement in miRNA regulation. Considering our previous results showing that COX-2 expression in hepatocytes protects against insulin resistance, we evaluated the role of COX-2 in the regulation of a specific set of miRNAs implicated in insulin signaling in liver cells. Our results provide evidence of the molecular basis for a novel function of COX-2 in miRNA processing. COX-2 represses miRNA 23b (miR-23b), miR-146b, and miR-183 expression in liver cells by increasing the level of DEAD-box helicase p68 (DDX5) through phosphatidylinositol 3-kinase (PI3K)/p300 signaling and by modulating the enzymatic function of the Drosha (RNase type III) complex through its physical association with DDX5. The decrease of miR-183 expression promotes protection against insulin resistance by increasing insulin receptor substrate 1 (IRS1) levels. These results indicate that the modulation of miRNA processing by COX-2 is a key event in insulin signaling in liver and has potential clinical implications for the management of various hepatic dysfunctions.
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Affiliation(s)
- Omar Motiño
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
| | - Daniel E Francés
- Instituto de Fisiología Experimental (IFISE-CONICET), Rosario, Argentina
| | - Rafael Mayoral
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, California, USA Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Luis Castro-Sánchez
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
| | | | - Lisardo Boscá
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Carmelo García-Monzón
- Liver Research Unit, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria Princesa, Madrid, Spain
| | - Rocío Brea
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
| | - Marta Casado
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain Instituto de Biomedicina de Valencia, IBV-CSIC, Valencia, Spain
| | - Noelia Agra
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
| | - Paloma Martín-Sanz
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
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22
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Qian J, Jiang B, Li M, Chen J, Fang M. Prognostic significance of microRNA-16 expression in human colorectal cancer. World J Surg 2015; 37:2944-9. [PMID: 24045965 DOI: 10.1007/s00268-013-2205-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND MicroRNAs (miRNAs), small noncoding RNAs, have been reported to be highly involved in the formation and progression of all types of human cancer including colorectal cancer (CRC). Therefore, miRNAs are also potential prognostic biomarkers in CRC patients. The aim of this study was to detect the expression of miR-16 in human CRC tissues and investigate its clinicopathologic or prognostic significance. METHODS TaqMan quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay was performed to determine the expression of miR-16 in 143 primary CRC tissues and 18 corresponding normal colonic mucosa from patients who had undergone surgery. The association of miR-16 expression with clinicopathologic features of CRC patients was statistically analyzed. Kaplan-Meier analyses were used to assess patient survival. Univariate and multivariate Cox analyses were performed. RESULTS The relative level of miR-16 in 18 CRC tissues was significantly lower than that in corresponding normal colonic mucosa (p < 0.001). Statistical analyses revealed that the status of miR-16 expression was closely associated with tumor differentiation, lymph node metastasis, L category, V category, TNM stage, and tumor recurrence of CRC (p = 0.001, 0.003, 0.001, 0.005, 0.003, and 0.017, respectively). Kaplan-Meier analyses indicated that patients with low-miR-16 had lower 5-year overall survival than those with high-miR-16 (31.2 vs. 58.3 %; p = 0.0012). Multivariate Cox regression analyses indicated that the status of miR-16 expression might be an independent prognostic factor for CRC patients (hazard ratio 1.67; 95 % confidence interval 1.22-2.54; p = 0.018). CONCLUSIONS Down-regulation of miR-16 plays critical roles in CRC progression. Low miR-16 expression is an independent factor predicting a poor prognosis for CRC patients.
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Affiliation(s)
- Jun Qian
- Department of Oncology, The Third Affiliated Hospital, Nanjing University of Traditional Chinese Medicine, No. 1 Jinling Road, Nanjing, Jiangsu, 210029, China
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23
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Huang F, Zhang L, Long Z, Chen Z, Hou X, Wang C, Peng H, Wang J, Li J, Duan R, Xia K, Chuang DM, Tang B, Jiang H. miR-25 alleviates polyQ-mediated cytotoxicity by silencing ATXN3. FEBS Lett 2014; 588:4791-8. [PMID: 25451224 PMCID: PMC6370487 DOI: 10.1016/j.febslet.2014.11.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 10/29/2014] [Accepted: 11/11/2014] [Indexed: 01/28/2023]
Abstract
MicroRNAs (miRNAs) have been reported to play significant roles in the pathogenesis of various polyQ diseases. This study aims to investigate the regulation of ATXN3 gene expression by miRNA. We found that miR-25 reduced both wild-type and polyQ-expanded mutant ataxin-3 protein levels by interacting with the 3'UTR of ATXN3 mRNA. miR-25 also increased cell viability, decreased early apoptosis, and downregulated the accumulation of mutant ataxin-3 protein aggregates in SCA3/MJD cells. These novel results shed light on the potential role of miR-25 in the pathogenesis of SCA3/MJD, and provide a possible therapeutic intervention for this disorder.
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Affiliation(s)
- Fengzhen Huang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Department of Neurology & Institute of Translational Medicine at University of South China, The First People's Hospital of Chenzhou, Chenzhou, PR China
| | - Li Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Zhe Long
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Zhao Chen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Xuan Hou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Chunrong Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Huirong Peng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Junling Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Jiada Li
- State Key Laboratory of Medical Genetics of China, Central South University, Changsha, Hunan 410078, PR China
| | - Ranhui Duan
- State Key Laboratory of Medical Genetics of China, Central South University, Changsha, Hunan 410078, PR China
| | - Kun Xia
- State Key Laboratory of Medical Genetics of China, Central South University, Changsha, Hunan 410078, PR China
| | - De-Maw Chuang
- Molecular Neurobiology Section, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Beisha Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; State Key Laboratory of Medical Genetics of China, Central South University, Changsha, Hunan 410078, PR China; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan 410008, PR China
| | - Hong Jiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; State Key Laboratory of Medical Genetics of China, Central South University, Changsha, Hunan 410078, PR China; Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan 410008, PR China.
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24
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Fiorino S, Bacchi-Reggiani L, Sabbatani S, Grizzi F, di Tommaso L, Masetti M, Fornelli A, Bondi A, de Biase D, Visani M, Cuppini A, Jovine E, Pession A. Possible role of tocopherols in the modulation of host microRNA with potential antiviral activity in patients with hepatitis B virus-related persistent infection: a systematic review. Br J Nutr 2014; 112:1751-68. [PMID: 25325563 DOI: 10.1017/s0007114514002839] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Hepatitis B virus (HBV) infection represents a serious global health problem and persistent HBV infection is associated with an increased risk of cirrhosis, hepatocellular carcinoma and liver failure. Recently, the study of the role of microRNA (miRNA) in the pathogenesis of HBV has gained considerable interest as well as new treatments against this pathogen have been approved. A few studies have investigated the antiviral activity of vitamin E (VE) in chronic HBV carriers. Herein, we review the possible role of tocopherols in the modulation of host miRNA with potential anti-HBV activity. A systematic research of the scientific literature was performed by searching the MEDLINE, Cochrane Library and EMBASE databases. The keywords used were 'HBV therapy', 'HBV treatment', 'VE antiviral effects', 'tocopherol antiviral activity', 'miRNA antiviral activity' and 'VE microRNA'. Reports describing the role of miRNA in the regulation of HBV life cycle, in vitro and in vivo available studies reporting the effects of VE on miRNA expression profiles and epigenetic networks, and clinical trials reporting the use of VE in patients with HBV-related chronic hepatitis were identified and examined. Based on the clinical results obtained in VE-treated chronic HBV carriers, we provide a reliable hypothesis for the possible role of this vitamin in the modulation of host miRNA profiles perturbed by this viral pathogen and in the regulation of some cellular miRNA with a suggested potential anti-HBV activity. This approach may contribute to the improvement of our understanding of pathogenetic mechanisms involved in HBV infection and increase the possibility of its management and treatment.
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Affiliation(s)
- S Fiorino
- Unità Operativa di Medicina Interna, Ospedale di Budrio,Via Benni 44,40065Budrio, Bologna,Italy
| | - L Bacchi-Reggiani
- Istituto di Cardiologia, Policlinico S. Orsola-Malpighi, Università degli Studi di Bologna,Bologna,Italy
| | - S Sabbatani
- Istituto di Malattie Infettive, Policlinico S. Orsola-Malpighi, Università degli Studi di Bologna,Bologna,Italy
| | - F Grizzi
- Humanitas Clinical and Research Center,Rozzano, Milano,Italy
| | - L di Tommaso
- Humanitas Clinical and Research Center,Rozzano, Milano,Italy
| | - M Masetti
- Unità Operativa di Chirurgia A, Ospedale Maggiore Bologna,Bologna,Italy
| | - A Fornelli
- Servizio di Anatomia Patologica, Ospedale Maggiore,Bologna,Italy
| | - A Bondi
- Servizio di Anatomia Patologica, Ospedale Maggiore,Bologna,Italy
| | - D de Biase
- Dipartimento di Medicina Sperimentale,Università di Bologna, Ospedale Bellaria,Bologna,Italy
| | - M Visani
- Dipartimento di Farmacia e Biotecnologie,Università di Bologna,Bologna,Italy
| | - A Cuppini
- Unità Operativa di Medicina Interna, Ospedale di Budrio,Via Benni 44,40065Budrio, Bologna,Italy
| | - E Jovine
- Unità Operativa di Chirurgia A, Ospedale Maggiore Bologna,Bologna,Italy
| | - A Pession
- Dipartimento di Farmacia e Biotecnologie,Università di Bologna,Bologna,Italy
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25
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Zuo W, Wang ZZ, Xue J. Artesunate induces apoptosis of bladder cancer cells by miR-16 regulation of COX-2 expression. Int J Mol Sci 2014; 15:14298-312. [PMID: 25196524 PMCID: PMC4159851 DOI: 10.3390/ijms150814298] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 07/14/2014] [Accepted: 07/23/2014] [Indexed: 12/21/2022] Open
Abstract
Bladder cancer is the most common malignant tumor of the urinary tract and remains one of the major causes of cancer death worldwide. In this study, we investigated the effect and mechanism of Artesunate (ART), a traditional Chinese medicine, on inducing apoptosis of human bladder cancer cells. In vivo antitumor activity was investigated in bladder cancer in rat by subcutaneous injection of different concentration of ART. The effect of ART on growth inhibition and apoptosis of bladder cancer cells was evaluated using dimethylthiazoly-2,5-diphenyltetrazolium bromide (MTT) assay and flow cytometry analysis, respectively. Cyclooxygenase-2 (COX-2) and miR-16 expression levels were determined with real-time PCR. The concentrations of prostaglandin E2 (PGE2) in the supernatants of bladder cancer cells were measured with an ELISA kit. The miR-16 inhibitor or mimic were transfected into cells to up- or down-regulate miR-16 expression. ART efficiently inhibited orthotopic tumor growth in the bladder cancer rat, which is accompanied with an increase of miR-16 expression and a decrease of COX-2 expression. In vitro, ART could induce cytotoxicity and apoptosis in bladder cancer cells, but presented a much lighter toxicity effect against normal human urothelial cells. ART significantly increased miR-16 expression and decreased the expression of COX-2 and the production of PGE2. More importantly, down-regulation of miR-16 expression could reverse the effect of ART on apoptosis and COX-2 expression in bladder cells. Moreover, exogenous PGE2 could inhibit apoptosis of bladder cancer cells treated with ART. In conclusion, ART can elicit an anti-tumor effect against bladder cancer by up-regulation of miR-16 expression, which resulted in the decrease of COX-2 expression and PGE2 production. Hence, ART might be an effective drug for the treatment of bladder cancer.
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Affiliation(s)
- Wei Zuo
- Department of Urinary Surgery, the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China.
| | - Zhen-Zhong Wang
- Department of Urinary Surgery, the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China.
| | - Jun Xue
- Department of Urinary Surgery, the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China.
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26
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Zeng W, van den Berg A, Huitema S, Gouw ASH, Molema G, de Jong KP. Correlation of microRNA-16, microRNA-21 and microRNA-101 expression with cyclooxygenase-2 expression and angiogenic factors in cirrhotic and noncirrhotic human hepatocellular carcinoma. PLoS One 2014; 9:e95826. [PMID: 24759835 PMCID: PMC3997433 DOI: 10.1371/journal.pone.0095826] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 03/31/2014] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a classical example of inflammation-linked cancer and is characterized by hypervascularity suggesting rich angiogenesis. Cycloxygenase-2 (COX-2) is a potent mediator of inflammation and is considered to upregulate angiogenesis. The aims of the study are (1) to analyze expression of Cox-2 mRNA, Cox-2 protein, miR-16, miR-21 and miR-101 in HCC and adjacent liver parenchyma in cirrhotic and noncirrhotic liver, (2) to investigate the relation between COX-2 expression, miR-21 expression and angiogenic factors in these tissues and (3) to investigate the association between miR-16 and miR-101 and COX-2 expression. METHODS Tissue samples of HCC and adjacent liver parenchyma of 21 noncirrhotic livers and 20 cirrhotic livers were analyzed for COX-2 expression at the mRNA level (qRT-PCR) and at the protein level by Western blot and immunohistochemistry. Gene expression of VEGFA, VEGFR1, VEGFR2, Ang-1, Ang-2 and Tie-2 were correlated with COX-2 levels. miR-16, miR-21 and miR-101 gene expression levels were quantified in HCC tumor tissue. RESULTS COX-2 mRNA and protein levels were lower in HCC as compared to adjacent liver parenchyma both in cirrhotic and noncirrhotic liver. COX-2 protein localized mainly in vascular and sinusoidal endothelial cells and in Kupffer cells. At the mRNA level but not at the protein level, COX-2 correlated with mRNA levels of angiogenic factors VEGFR1, Ang-1, and Tie2. miR-21 expression was higher in cirrhotic tissues versus noncirrhotic tissues. MiR-101 expression was lower in cirrhotic versus noncirrhotic adjacent liver parenchyma. None of the miRNAs correlelated with COX-2 expression. miR-21 correlated negatively with Tie-2 receptor in adjacent liver parenchyma. CONCLUSIONS In human HCC, COX-2 mRNA but not COX-2 protein levels are associated with expression levels of angiogenic factors. MiR-21 levels are not associated with angiogenic molecules. MiR-16 and miR-101 levels do not correlate with COX-2 mRNA and protein levels.
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Affiliation(s)
- Wenjiao Zeng
- Department of Pathology & Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anke van den Berg
- Department of Pathology & Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Sippie Huitema
- Department of Pathology & Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Annette S. H. Gouw
- Department of Pathology & Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Grietje Molema
- Department of Pathology & Medical Biology. Medical Biology Section, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Koert P. de Jong
- Department of Hepato-Pancreato-Biliary Surgery & Liver Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- * E-mail:
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27
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Zago M, Rico de Souza A, Hecht E, Rousseau S, Hamid Q, Eidelman DH, Baglole CJ. The NF-κB family member RelB regulates microRNA miR-146a to suppress cigarette smoke-induced COX-2 protein expression in lung fibroblasts. Toxicol Lett 2014; 226:107-16. [PMID: 24472607 DOI: 10.1016/j.toxlet.2014.01.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 01/13/2014] [Accepted: 01/14/2014] [Indexed: 01/23/2023]
Abstract
Diseases due to cigarette smoke exposure, including chronic obstructive pulmonary disease (COPD) and lung cancer, are associated with chronic inflammation typified by the increased expression of cyclooxygenase-2 (COX-2) protein. RelB is an NF-κB family member that suppresses cigarette smoke induction of COX-2 through an unknown mechanism. The ability of RelB to regulate COX-2 expression may be via miR-146a, a miRNA that attenuates COX-2 in lung fibroblasts. In this study we tested whether RelB attenuation of cigarette smoke-induced COX-2 protein is due to miR-146a. Utilizing pulmonary fibroblasts deficient in RelB expression, together with siRNA knock-down of RelB, we show the essential role of RelB in diminishing smoke-induced COX-2 protein expression despite robust activation of the canonical NF-κB pathway and subsequent induction of Cox-2 mRNA. RelB did not regulate COX-2 protein expression at the level of mRNA stability. Basal levels of miR-146a were significantly lower in Relb-deficient cells and cigarette smoke increased miR-146a expression only in Relb-expressing cells. Inhibition of miR-146a had no effects on Relb expression or induction of Cox-2 mRNA by cigarette smoke but significantly increased COX-2 protein. These data highlight the potential of a RelB-miR-146a axis as a novel regulatory pathway that attenuates inflammation in response to respiratory toxicants.
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Affiliation(s)
- Michela Zago
- Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada
| | - Angela Rico de Souza
- Research Institute of the McGill University Health Centre, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada
| | - Emelia Hecht
- Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada
| | - Simon Rousseau
- Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada; Research Institute of the McGill University Health Centre, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada
| | - Qutayba Hamid
- Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada; Research Institute of the McGill University Health Centre, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada
| | - David H Eidelman
- Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada; Research Institute of the McGill University Health Centre, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada
| | - Carolyn J Baglole
- Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada; Research Institute of the McGill University Health Centre, McGill University, 3626 St. Urbain Street, Montreal, Quebec H2X 2P2, Canada.
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28
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Kim JH, Kim SJ. Overexpression of MicroRNA-25 by Withaferin A Induces Cyclooxygenase-2 Expression in Rabbit Articular Chondrocytes. J Pharmacol Sci 2014; 125:83-90. [DOI: 10.1254/jphs.13232fp] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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29
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Huang F, Lin C, Shi YH, Kuerban G. MicroRNA-101 Inhibits Cell Proliferation, Invasion, and Promotes Apoptosis by Regulating Cyclooxygenase-2 in Hela Cervical Carcinoma Cells. Asian Pac J Cancer Prev 2013; 14:5915-20. [DOI: 10.7314/apjcp.2013.14.10.5915] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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30
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Ochs MJ, Steinhilber D, Suess B. MicroRNAs - Novel Therapeutic Targets of Eicosanoid Signalling. Basic Clin Pharmacol Toxicol 2013; 114:92-6. [DOI: 10.1111/bcpt.12116] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 07/23/2013] [Indexed: 01/01/2023]
Affiliation(s)
- Meike J. Ochs
- Department of Biology; Technical University Darmstadt; Darmstadt Germany
- Institute of Pharmaceutical Chemistry/ZAFES; Goethe University Frankfurt; Frankfurt/M. Germany
| | - Dieter Steinhilber
- Institute of Pharmaceutical Chemistry/ZAFES; Goethe University Frankfurt; Frankfurt/M. Germany
| | - Beatrix Suess
- Department of Biology; Technical University Darmstadt; Darmstadt Germany
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