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Abstract
SIGNIFICANCE Platelets are anucleate blood cells that are involved in hemostasis and thrombosis. Although no longer able to generate ribonucleic acid (RNA) de novo, platelets contain messenger RNA (mRNA), YRNA fragments, and premature microRNAs (miRNAs) that they inherit from megakaryocytes. Recent Advances: Novel sequencing techniques have helped identify the unexpectedly large number of RNA species present in platelets. Throughout their life time, platelets can process the pre-existing pool of premature miRNA to give the fully functional miRNA that can regulate platelet protein expression and function. CRITICAL ISSUES Platelets make a major contribution to the circulating miRNA pool but platelet activation can have major consequences on Dicer levels and thus miRNA maturation, which has implications for studies that are focused on screening-stored platelets. FUTURE DIRECTIONS It will be important to determine the importance of platelets as donors for miRNA-containing microvesicles that can be taken up and processed by other (particularly vascular) cells, thus contributing to homeostasis as well as disease progression. Antioxid. Redox Signal. 29, 902-921.
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Affiliation(s)
- Amro Elgheznawy
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University , Frankfurt am Main, Germany .,2 German Center for Cardiovascular Research (DZHK) , Partner site Rhein-Main, Frankfurt am Main, Germany
| | - Ingrid Fleming
- 1 Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University , Frankfurt am Main, Germany .,2 German Center for Cardiovascular Research (DZHK) , Partner site Rhein-Main, Frankfurt am Main, Germany
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102
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Lemcke H, David R. Potential mechanisms of microRNA mobility. Traffic 2018; 19:910-917. [PMID: 30058163 DOI: 10.1111/tra.12606] [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: 04/06/2018] [Revised: 07/26/2018] [Accepted: 07/26/2018] [Indexed: 12/29/2022]
Abstract
microRNAs (miRNAs) are important epigenetic modulators of gene expression that control cellular physiology as well as tissue homeostasis, and development. In addition to the temporal aspects of miRNA-mediated gene regulation, the intracellular localization of miRNA is crucial for its silencing activity. Recent studies indicated that miRNA is even translocated between cells via gap junctional cell-cell contacts, allowing spatiotemporal modulation of gene expression within multicellular systems. Although non coding RNA remains a focus of intense research, studies regarding the intra-and intercellular mobility of small RNAs are still largely missing. Emerging data from experimental and computational work suggest the involvement of transport mechanisms governing proper localization of miRNA in single cells and cellular syncytia. Based on these data, we discuss a model of miRNA translocation that could help to address the spatial aspects of miRNA function and the impact of miRNA molecules on the intercellular signaling network.
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Affiliation(s)
- Heiko Lemcke
- Department of Cardiac Surgery, Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), University of Rostock, Rostock, Germany.,Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany
| | - Robert David
- Department of Cardiac Surgery, Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), University of Rostock, Rostock, Germany.,Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany
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103
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Donaldson CJ, Lao KH, Zeng L. The salient role of microRNAs in atherogenesis. J Mol Cell Cardiol 2018; 122:98-113. [DOI: 10.1016/j.yjmcc.2018.08.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 08/05/2018] [Accepted: 08/06/2018] [Indexed: 12/17/2022]
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104
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Liu X, Zhang Y, Wang S, Liu G, Ruan L. Loss of miR-143 and miR-145 in condyloma acuminatum promotes cellular proliferation and inhibits apoptosis by targeting NRAS. ROYAL SOCIETY OPEN SCIENCE 2018; 5:172376. [PMID: 30225000 PMCID: PMC6124073 DOI: 10.1098/rsos.172376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 08/03/2018] [Indexed: 05/08/2023]
Abstract
The expression profile of miRNAs and their function in condyloma acuminatum (CA) remains unknown. In this study, we aimed to detect the effects of miR-143 and miR-145, the most downregulated in CA samples using high-throughput sequencing, on cell proliferation and apoptosis, to determine a novel therapeutic target for CA recurrence. RT-qPCR was used to validate the lower expression of miR-143 and miR-145 in a larger size of CA samples, and the expression of NRAS in CA samples was significantly higher than self-controls as determined by western blotting assay. Luciferase assay was performed to confirm that miR-143 or miR-145 targeted NRAS directly. Transduction of LV-pre-miR-143 or LV-pre-miR-145 to human papilloma virus (HPV)-infected SiHa cells led to reduced proliferation, greater apoptosis and inhibition of expression of NRAS, PI3 K p110α and p-AKT. However, knockout of miR-143 or miR-145 in human epidermal keratinocytes by delivery of CRISPR/CAS9-gRNA for target miRNAs protected cells from apoptosis and upregulated expression of target genes as described above. MiR-143 and miR-145 sensitized cells to nutlin-3a, a p53 activator and MDM2 antagonist, while their loss protected cells from the stress of nutlin-3a. Furthermore, siRNA targeting NRAS showed similar effects on proliferation and apoptosis as miR-143 or miR-145. Taken together, our results suggest that loss of miR-143 or miR-145 in CA protects HPV-infected cells from apoptosis induced by environmental stress, in addition to promoting cellular proliferation and inhibiting apoptosis by targeting NRAS/PI3 K/ATK. Restoration of miR-143 or miR-145 might provide an applicable and novel approach to block the recurrence and progression of CA.
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Affiliation(s)
| | | | | | | | - Liming Ruan
- Department of Dermatology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, People's Republic of China
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105
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Fan X, Teng Y, Ye Z, Zhou Y, Tan WS. The effect of gap junction-mediated transfer of miR-200b on osteogenesis and angiogenesis in a co-culture of MSCs and HUVECs. J Cell Sci 2018; 131:jcs.216135. [PMID: 29898921 DOI: 10.1242/jcs.216135] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 06/04/2018] [Indexed: 12/15/2022] Open
Abstract
For successful engineering of pre-vascularized bone tissue in vitro, understanding the interactions between vasculogenic cells and bone-forming cells is a prerequisite. Mounting evidence indicates that microRNAs can serve as intercellular signals that allow cell-cell communication. Here, the role of the transfer of the microRNA miR-200b between vasculogenic and osteogenic cells was explored in a co-culture system. Rat bone-marrow derived mesenchymal stem cells (BMSCs) formed functional gap junctions composed of connexin 43 (Cx43, also known as GJA1) with human umbilical vein endothelial cells (HUVECs), through which miR-200b could transfer from BMSCs to HUVECs to regulate osteogenesis and angiogenesis. As a negative regulator, the decrease in miR-200b level in BMSCs derepressed the expression of VEGF-A, leading to increased osteogenic differentiation. Once inside HUVECs, miR-200b reduced the angiogenic potential of HUVECs through downregulation of ZEB2, ETS1, KDR and GATA2 Additionally, TGF-β was found to trigger the transfer of miR-200b to HUVECs. Upon adding the TGF-β inhibitor SB431542 or TGF-β-neutralizing antibody, the formation of capillary-like structures in co-culture could be partially rescued. These findings may be fundamental to the development of a cell-based bone regeneration strategy.
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Affiliation(s)
- Xiaoting Fan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yi Teng
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Zhaoyang Ye
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yan Zhou
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Wen-Song Tan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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106
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Pedicini L, Miteva KT, Hawley V, Gaunt HJ, Appleby HL, Cubbon RM, Marszalek K, Kearney MT, Beech DJ, McKeown L. Homotypic endothelial nanotubes induced by wheat germ agglutinin and thrombin. Sci Rep 2018; 8:7569. [PMID: 29765077 PMCID: PMC5953990 DOI: 10.1038/s41598-018-25853-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 04/27/2018] [Indexed: 12/21/2022] Open
Abstract
Endothelial barrier formation is maintained by intercellular communication through junctional proteins. The mechanisms involved in maintaining endothelial communication subsequent to barrier disruption remain unclear. It is known that low numbers of endothelial cells can be interconnected by homotypic actin-driven tunneling nanotubes (TNTs) which could be important for intercellular transfer of information in vascular physiology. Here we sought insight into the triggers for TNT formation. Wheat germ agglutinin, a C-type lectin and known label for TNTs, unexpectedly caused striking induction of TNTs. A succinylated derivative was by contrast inactive, suggesting mediation by a sialylated protein. Through siRNA-mediated knockdown we identified that this protein was likely to be CD31, an important sialylated membrane protein normally at endothelial cell junctions. We subsequently considered thrombin as a physiological inducer of endothelial TNTs because it reduces junctional contact. Thrombin reduced junctional contact, redistributed CD31 and induced TNTs, but its effect on TNTs was CD31-independent. Thrombin-induced TNTs nevertheless required PKCα, a known mediator of thrombin-dependent junctional remodelling, suggesting a necessity for junctional proteins in TNT formation. Indeed, TNT-inducing effects of wheat germ agglutinin and thrombin were both correlated with cortical actin rearrangement and similarly Ca2+-dependent, suggesting common underlying mechanisms. Once formed, Ca2+ signalling along TNTs was observed.
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Affiliation(s)
- Lucia Pedicini
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Katarina T Miteva
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Verity Hawley
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Hannah J Gaunt
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Hollie L Appleby
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Richard M Cubbon
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Katarzyna Marszalek
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Mark T Kearney
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - David J Beech
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Lynn McKeown
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, LS2 9JT, UK.
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107
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Elia L, Kunderfranco P, Carullo P, Vacchiano M, Farina FM, Hall IF, Mantero S, Panico C, Papait R, Condorelli G, Quintavalle M. UHRF1 epigenetically orchestrates smooth muscle cell plasticity in arterial disease. J Clin Invest 2018; 128:2473-2486. [PMID: 29558369 DOI: 10.1172/jci96121] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 03/13/2018] [Indexed: 12/26/2022] Open
Abstract
Adult vascular smooth muscle cells (VSMCs) dedifferentiate in response to extracellular cues such as vascular damage and inflammation. Dedifferentiated VSMCs are proliferative, migratory, less contractile, and can contribute to vascular repair as well as to cardiovascular pathologies such as intimal hyperplasia/restenosis in coronary artery and arterial aneurysm. We here demonstrate the role of ubiquitin-like containing PHD and RING finger domains 1 (UHRF1) as an epigenetic master regulator of VSMC plasticity. UHRF1 expression correlated with the development of vascular pathologies associated with modulation of noncoding RNAs, such as microRNAs. miR-145 - pivotal in regulating VSMC plasticity, which is reduced in vascular diseases - was found to control Uhrf1 mRNA translation. In turn, UHRF1 triggered VSMC proliferation, directly repressing promoters of cell-cycle inhibitor genes (including p21 and p27) and key prodifferentiation genes via the methylation of DNA and histones. Local vascular viral delivery of Uhrf1 shRNAs or Uhrf1 VSMC-specific deletion prevented intimal hyperplasia in mouse carotid artery and decreased vessel damage in a mouse model of aortic aneurysm. Our study demonstrates the fundamental role of Uhrf1 in regulating VSMC phenotype by promoting proliferation and dedifferentiation. UHRF1 targeting may hold therapeutic potential in vascular pathologies.
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Affiliation(s)
- Leonardo Elia
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.,Institute of Genetic and Biomedical Research, National Research Council, Milan Unit, Rozzano, Milan, Italy
| | | | - Pierluigi Carullo
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Institute of Genetic and Biomedical Research, National Research Council, Milan Unit, Rozzano, Milan, Italy
| | - Marco Vacchiano
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | | | - Ignacio Fernando Hall
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Humanitas University, Rozzano, Milan, Italy
| | - Stefano Mantero
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Institute of Genetic and Biomedical Research, National Research Council, Milan Unit, Rozzano, Milan, Italy
| | - Cristina Panico
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Roberto Papait
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Gianluigi Condorelli
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Institute of Genetic and Biomedical Research, National Research Council, Milan Unit, Rozzano, Milan, Italy.,Humanitas University, Rozzano, Milan, Italy
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108
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Su SA, Xie Y, Fu Z, Wang Y, Wang JA, Xiang M. Emerging role of exosome-mediated intercellular communication in vascular remodeling. Oncotarget 2018; 8:25700-25712. [PMID: 28147325 PMCID: PMC5421963 DOI: 10.18632/oncotarget.14878] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 01/18/2017] [Indexed: 12/17/2022] Open
Abstract
Vascular remodeling refers to the alternations of function and structure in vasculature. A complex autocrine/paracrine set of cellular interaction is involved in vascular remodeling. Exosome, a newly identified natural nanocarrier and intercellular messenger, plays a pivotal role in regulating cell-to-cell communication. Exosome emerges as an important mediator in the process of vascular remodeling, showing the most prognostic and therapeutic potent in vascular diseases. Benefiting from exosomal trafficking, the vasculature can not only maintain its function and structure in physiological condition, but also adapt itself in pathological status. In this review, we will represent the roles of exosomes in angiogenesis, endothelial function and cardiac regeneration. In addition, greatly depending on the pathophysiological status of donor cells and peripheral micro-circumstance, the exosomal content could alter, which makes exosomes exhibit pleiotropic effects in vascular diseases. Hence, the diverse effects of exosomes in vascular diseases including atherosclerosis, neointima formation and vascular repair, primary hypertension, pulmonary artery hypertension, and aortic aneurysm will be discussed. Finally, the translational appliances targeting exosomes will be concluded by providing updated applications of engineered exosomes in clinic.
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Affiliation(s)
- Sheng-An Su
- Department of Cardiology, Cardiovascular Key Lab of Zhejiang Province, Second Affiliated Hospital, Zhejiang University College of Medicine, Hang Zhou, Zhejiang, P.R. China
| | - Yao Xie
- Cardiovascular Division, King's College London BHF Center, London, United Kingdom
| | - Zurong Fu
- Department of Cardiology, Cardiovascular Key Lab of Zhejiang Province, Second Affiliated Hospital, Zhejiang University College of Medicine, Hang Zhou, Zhejiang, P.R. China
| | - Yaping Wang
- Department of Cardiology, Cardiovascular Key Lab of Zhejiang Province, Second Affiliated Hospital, Zhejiang University College of Medicine, Hang Zhou, Zhejiang, P.R. China
| | - Jian-An Wang
- Department of Cardiology, Cardiovascular Key Lab of Zhejiang Province, Second Affiliated Hospital, Zhejiang University College of Medicine, Hang Zhou, Zhejiang, P.R. China
| | - Meixiang Xiang
- Department of Cardiology, Cardiovascular Key Lab of Zhejiang Province, Second Affiliated Hospital, Zhejiang University College of Medicine, Hang Zhou, Zhejiang, P.R. China
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109
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Abstract
Purpose of Review Hypertension is either a cause or a consequence of the endothelial dysfunction and a major risk factor for cardiovascular disease (CVD). In vitro and in vivo studies established that microRNAs (miRNAs) are decisive for endothelial cell gene expression and function in various pathological conditions associated with CVD. This review provides an overview of the miRNA role in controlling the key connections between endothelial dysfunction and hypertension. Recent Findings Herein we summarize the present understanding of mechanisms underlying hypertension and its associated endothelial dysfunction as well as the miRNA role in endothelial cells with accent on the modulation of renin-angiotensin-aldosterone-system, nitric oxide, oxidative stress and on the control of vascular inflammation and angiogenesis in relation to endothelial dysfunction in hypertension. In particular, latest insights in the identification of endothelial-specific microRNAs and their targets are added to the understanding of miRNA significance in hypertension. Summary This comprehensive knowledge of the role of miRNAs in endothelial dysfunction and hypertension and of molecular mechanisms proposed for miRNA actions may offer novel diagnostic biomarkers and therapeutic targets for controlling hypertension-associated endothelial dysfunction and other cardiovascular complications.
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Affiliation(s)
- Miruna Nemecz
- Department of Pathophysiology and Pharmacology, Institute of Cellular Biology and Pathology, 'Nicolae Simionescu' of Romanian Academy, 8, BP Hasdeu Street, PO Box 35-14, 050568, Bucharest, Romania
| | - Nicoleta Alexandru
- Department of Pathophysiology and Pharmacology, Institute of Cellular Biology and Pathology, 'Nicolae Simionescu' of Romanian Academy, 8, BP Hasdeu Street, PO Box 35-14, 050568, Bucharest, Romania
| | - Gabriela Tanko
- Department of Pathophysiology and Pharmacology, Institute of Cellular Biology and Pathology, 'Nicolae Simionescu' of Romanian Academy, 8, BP Hasdeu Street, PO Box 35-14, 050568, Bucharest, Romania.
| | - Adriana Georgescu
- Department of Pathophysiology and Pharmacology, Institute of Cellular Biology and Pathology, 'Nicolae Simionescu' of Romanian Academy, 8, BP Hasdeu Street, PO Box 35-14, 050568, Bucharest, Romania.
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110
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Liu K, Xuekelati S, Zhou K, Yan Z, Yang X, Inayat A, Wu J, Guo X. Expression Profiles of Six Atherosclerosis-Associated microRNAs That Cluster in Patients with Hyperhomocysteinemia: A Clinical Study. DNA Cell Biol 2018; 37:189-198. [PMID: 29461880 DOI: 10.1089/dna.2017.3845] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The aim of this study is to discuss the hypothesis that expression of plasma atherosclerosis-associated microRNAs (miRNAs) in hyperhomocysteinemia (Hhcy) patients could predict the presence of atherosclerosis from different channels. Six plasma miRNAs (miR-145, miR-155, miR-222, miR-133, miR-217, and miR-30) selected for our study have been confirmed as critical gene regulators involved in atherosclerosis and can be steadily determined in plasma. Expression of the above six plasma circulating miRNAs revealed significant upregulation of two miRNAs (miR-133 and miR-217) and downregulation of three miRNAs (miR-145, miR-155, and miR-222). Six candidate miRNAs showed a significant correlation with homocysteine (Hcy) or lipid parameters. The results of this study indicated that miR-217 was further significantly upregulated in Hhcy + ATH groups than in normal control, Hhcy-, and atherosclerosis-alone (ATH) groups and it showed a significant negative correlation with Hcy and triglycerides. More specifically, miR-217 showed the most specific expression patterns in all patients with atherosclerosis (ATH and Hhcy + ATH groups), which may have been a diagnostic value for Hhcy complicated with atherosclerosis, and predicted the progress of atherosclerosis in Hhcy patients effectively.
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Affiliation(s)
- Kejian Liu
- 1 Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Department of Cardiology, The First Affiliated Hospital, Shihezi University School of Medicine , Shihezi, China
| | - Saiyare Xuekelati
- 3 The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University , Shihezi, China
| | - Kang Zhou
- 2 Department of Cardiology, The First Affiliated Hospital, Shihezi University School of Medicine , Shihezi, China
| | - Zhitao Yan
- 2 Department of Cardiology, The First Affiliated Hospital, Shihezi University School of Medicine , Shihezi, China
| | - Xu Yang
- 2 Department of Cardiology, The First Affiliated Hospital, Shihezi University School of Medicine , Shihezi, China
| | - Azeem Inayat
- 3 The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University , Shihezi, China
| | - Jiangdong Wu
- 3 The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University , Shihezi, China
| | - Xiaomei Guo
- 1 Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
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111
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Thuringer D, Jego G, Berthenet K, Hammann A, Solary E, Garrido C. Gap junction-mediated transfer of miR-145-5p from microvascular endothelial cells to colon cancer cells inhibits angiogenesis. Oncotarget 2018; 7:28160-8. [PMID: 27058413 PMCID: PMC5053717 DOI: 10.18632/oncotarget.8583] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 03/28/2016] [Indexed: 11/25/2022] Open
Abstract
Gap junctional communication between cancer cells and blood capillary cells is crucial to tumor growth and invasion. Gap junctions may transfer microRNAs (miRs) among cells. Here, we explore the impact of such a transfer in co-culture assays, using the antitumor miR-145 as an example. The SW480 colon carcinoma cells form functional gap junction composed of connexin-43 (Cx43) with human microvascular endothelial cells (HMEC). When HMEC are loaded with miR-145-5p mimics, the miR-145 level drastically increases in SW480. The functional inhibition of gap junctions, using either a gap channel blocker or siRNA targeting Cx43, prevents this increase. The transfer of miR-145 also occurs from SW480 to HMEC but not in non-contact co-cultures, excluding the involvement of soluble exosomes. The miR-145 transfer to SW480 up-regulates their Cx43 expression and inhibits their ability to promote angiogenesis. Our results indicate that the gap junctional communication can inhibit tumor growth by transferring miRs from one endothelial cell to neighboring tumor cells. This “bystander” effect could find application in cancer therapy.
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Affiliation(s)
| | - Gaetan Jego
- INSERM, U866, Faculty of Medecine, 21000 Dijon, France.,University of Bourgogne-Franche-Comté, 21000 Dijon, France
| | | | | | - Eric Solary
- INSERM, U1170, Institut Gustave Roussy, 94508 Villejuif, France
| | - Carmen Garrido
- INSERM, U866, Faculty of Medecine, 21000 Dijon, France.,University of Bourgogne-Franche-Comté, 21000 Dijon, France.,CGFL, BP77980, 21000 Dijon, France
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112
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Koroleva IA, Nazarenko MS, Kucher AN. Role of microRNA in Development of Instability of Atherosclerotic Plaques. BIOCHEMISTRY (MOSCOW) 2018; 82:1380-1390. [PMID: 29223165 DOI: 10.1134/s0006297917110165] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
MicroRNAs are small noncoding single-stranded RNAs that regulate gene expression. Today, we see an increasing number of studies highlighting the important role of microRNAs in the development and progression of cardiovascular diseases caused by atherosclerotic lesions of arteries. We review the available scientific data on association of the expression of these biomolecules with instability of atherosclerotic plaques in animal models and humans. We made special emphasis on miR-21, -100, -127, -133, -143/145, -221/222, and -494 because they were analyzed in more than one study. We discuss the possibility of microRNAs using in the diagnosis and therapy of atherosclerosis and its complications.
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Affiliation(s)
- I A Koroleva
- Research Institute of Medical Genetics, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, 634050, Russia.
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113
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Pomatto MAC, Gai C, Deregibus MC, Tetta C, Camussi G. Noncoding RNAs Carried by Extracellular Vesicles in Endocrine Diseases. Int J Endocrinol 2018; 2018:4302096. [PMID: 29808089 PMCID: PMC5902008 DOI: 10.1155/2018/4302096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 01/16/2018] [Indexed: 02/06/2023] Open
Abstract
RNA molecules are essential and fine regulators of important biological processes. Their role is well documented also in the endocrine system, both in physiological and pathological conditions. Increasing interest is arising about the function and the importance of noncoding RNAs shuttled by extracellular vesicles (EVs). In fact, EV membrane protects nucleic acids from enzyme degradation. Nowadays, the research on EVs and their cargoes, as well as their biological functions, faces the lack of standardization in EV purification. Here, the main techniques for EV isolation are discussed and compared for their advantages and vulnerabilities. Despite the possible discrepancy due to methodological variability, EVs and their RNA content are reported to be key mediators of intercellular communication in pathologies of main endocrine organs, including the pancreas, thyroid, and reproductive system. In particular, the present work describes the role of RNAs contained in EVs in pathogenesis and progression of several metabolic dysfunctions, including obesity and diabetes, and their related manifestations. Their importance in the establishment and progression of thyroid autoimmunity disorders and complicated pregnancy is also discussed. Preliminary studies highlight the attractive possibility to use RNAs contained in EVs as biomarkers suggesting their exploitation for new diagnostic approaches in endocrinology.
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Affiliation(s)
| | - Chiara Gai
- Stem Cell Laboratory, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Maria Chiara Deregibus
- Stem Cell Laboratory, Department of Medical Sciences, University of Turin, Turin, Italy
- 2i3T Scarl, Univerity of Turin, Turin, Italy
| | - Ciro Tetta
- Unicyte AG, Oberdorf, Nidwalden, Switzerland
| | - Giovanni Camussi
- Stem Cell Laboratory, Department of Medical Sciences, University of Turin, Turin, Italy
- 2i3T Scarl, Univerity of Turin, Turin, Italy
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114
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Varga ZV, Ágg B, Ferdinandy P. miR-125b is a protectomiR: A rising star for acute cardioprotection. J Mol Cell Cardiol 2017; 115:51-53. [PMID: 29294330 DOI: 10.1016/j.yjmcc.2017.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 12/27/2017] [Indexed: 11/15/2022]
Affiliation(s)
- Zoltán V Varga
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Bence Ágg
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Heart and Vascular Center, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary.
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115
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van de Pol V, Kurakula K, DeRuiter MC, Goumans MJ. Thoracic Aortic Aneurysm Development in Patients with Bicuspid Aortic Valve: What Is the Role of Endothelial Cells? Front Physiol 2017; 8:938. [PMID: 29249976 PMCID: PMC5714935 DOI: 10.3389/fphys.2017.00938] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 11/06/2017] [Indexed: 12/28/2022] Open
Abstract
Bicuspid aortic valve (BAV) is the most common type of congenital cardiac malformation. Patients with a BAV have a predisposition for the development of thoracic aortic aneurysm (TAA). This pathological aortic dilation may result in aortic rupture, which is fatal in most cases. The abnormal aortic morphology of TAAs results from a complex series of events that alter the cellular structure and extracellular matrix (ECM) composition of the aortic wall. Because the major degeneration is located in the media of the aorta, most studies aim to unravel impaired smooth muscle cell (SMC) function in BAV TAA. However, recent studies suggest that endothelial cells play a key role in both the initiation and progression of TAAs by influencing the medial layer. Aortic endothelial cells are activated in BAV mediated TAAs and have a substantial influence on ECM composition and SMC phenotype, by secreting several key growth factors and matrix modulating enzymes. In recent years there have been significant advances in the genetic and molecular understanding of endothelial cells in BAV associated TAAs. In this review, the involvement of the endothelial cells in BAV TAA pathogenesis is discussed. Endothelial cell functioning in vessel homeostasis, flow response and signaling will be highlighted to give an overview of the importance and the under investigated potential of endothelial cells in BAV-associated TAA.
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Affiliation(s)
- Vera van de Pol
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Kondababu Kurakula
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Marco C. DeRuiter
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, Netherlands
| | - Marie-José Goumans
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, Netherlands
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Thayanithy V, O'Hare P, Wong P, Zhao X, Steer CJ, Subramanian S, Lou E. A transwell assay that excludes exosomes for assessment of tunneling nanotube-mediated intercellular communication. Cell Commun Signal 2017; 15:46. [PMID: 29132390 PMCID: PMC5683209 DOI: 10.1186/s12964-017-0201-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 10/30/2017] [Indexed: 12/25/2022] Open
Abstract
Background Tunneling nanotubes (TNTs) are naturally-occurring filamentous actin-based membranous extensions that form across a wide spectrum of mammalian cell types to facilitate long-range intercellular communication. Valid assays are needed to accurately assess the downstream effects of TNT-mediated transfer of cellular signals in vitro. We recently reported a modified transwell assay system designed to test the effects of intercellular transfer of a therapeutic oncolytic virus, and viral-activated drugs, between cells via TNTs. The objective of the current study was to demonstrate validation of this in vitro approach as a new method for effectively excluding diffusible forms of long- and close-range intercellular transfer of intracytoplasmic cargo, including exosomes/microvesicles and gap junctions in order to isolate TNT-selective cell communication. Methods We designed several steps to effectively reduce or eliminate diffusion and long-range transfer via these extracellular vesicles, and used Nanoparticle Tracking Analysis to quantify exosomes following implementation of these steps. Results The experimental approach outlined here effectively reduced exosome trafficking by >95%; further use of heparin to block exosome uptake by putative recipient cells further impeded transfer of these extracellular vesicles. Conclusions This validated assay incorporates several steps that can be taken to quantifiably control for extracellular vesicles in order to perform studies focused on TNT-selective communication. Electronic supplementary material The online version of this article (10.1186/s12964-017-0201-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Venugopal Thayanithy
- Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Mayo Mail Code 480, 420 Delaware Street SE, Minneapolis, MN, 55455, USA.,Present Address: Molecular Diagnostics Laboratory, University of Minnesota Medical Center, Fairview, 420 Delaware St SE, MMC 198, Minneapolis, MN, 55455, USA
| | - Patrick O'Hare
- Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Mayo Mail Code 480, 420 Delaware Street SE, Minneapolis, MN, 55455, USA
| | - Phillip Wong
- Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Mayo Mail Code 480, 420 Delaware Street SE, Minneapolis, MN, 55455, USA
| | - Xianda Zhao
- Department of Surgery, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Clifford J Steer
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, Minneapolis, MN, 55455, USA.,Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, 55455, USA
| | | | - Emil Lou
- Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Mayo Mail Code 480, 420 Delaware Street SE, Minneapolis, MN, 55455, USA. .,Graduate Faculty, Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, 55455, USA.
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117
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Keller KE, Bradley JM, Sun YY, Yang YF, Acott TS. Tunneling Nanotubes are Novel Cellular Structures That Communicate Signals Between Trabecular Meshwork Cells. Invest Ophthalmol Vis Sci 2017; 58:5298-5307. [PMID: 29049733 PMCID: PMC5656416 DOI: 10.1167/iovs.17-22732] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Purpose The actin cytoskeleton of trabecular meshwork (TM) cells plays a role in regulating aqueous humor outflow. Many studies have investigated stress fibers, but F-actin also assembles into other supramolecular structures including filopodia. Recently, specialized filopodia called tunneling nanotubes (TNTs) have been described, which communicate molecular signals and organelles directly between cells. Here, we investigate TNT formation by TM cells. Methods Human TM cells were labeled separately with the fluorescent dyes, DiO and DiD, or with mitochondrial dye. Fixed or live TM cells were imaged using confocal microscopy. Image analysis software was used to track fluorescent vesicles and count the number and length of filopodia. The number of fluorescently labeled vesicles transferred between cells was counted in response to specific inhibitors of the actin cytoskeleton. Human TM tissue was stained with phalloidin. Results Live-cell confocal imaging of cultured TM cells showed transfer of fluorescently labeled vesicles and mitochondria via TNTs. In TM tissue, a long (160 μm) actin-rich cell process bridged an intertrabecular space and did not adhere to the substratum. Treatment of TM cells with CK-666, an Arp2/3 inhibitor, significantly decreased the number and length of filopodia, decreased transfer of fluorescently labeled vesicles and induced thick stress fibers compared to vehicle control. Conversely, inhibiting stress fibers using Y27632 increased transfer of vesicles and induced long cell processes. Conclusions Identification of TNTs provides a means by which TM cells can directly communicate with each other over long distances. This may be particularly important to overcome limitations of diffusion-based signaling in the aqueous humor fluid environment.
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Affiliation(s)
- Kate E Keller
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - John M Bradley
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Ying Ying Sun
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Yong-Feng Yang
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Ted S Acott
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
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Sáenz-de-Santa-María I, Bernardo-Castiñeira C, Enciso E, García-Moreno I, Chiara JL, Suarez C, Chiara MD. Control of long-distance cell-to-cell communication and autophagosome transfer in squamous cell carcinoma via tunneling nanotubes. Oncotarget 2017; 8:20939-20960. [PMID: 28423494 PMCID: PMC5400557 DOI: 10.18632/oncotarget.15467] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 02/06/2017] [Indexed: 12/20/2022] Open
Abstract
Tunneling nanotubes (TnTs) are thin channels that temporally connect nearby cells allowing the cell-to-cell trafficking of biomolecules and organelles. The presence or absence of TnTs in human neoplasms and the mechanisms of TnT assembly remains largely unexplored. In this study, we have identified TnTs in tumor cells derived from squamous cell carcinomas (SCC) cultured under bi-dimensional and tri-dimensional conditions and also in human SCC tissues. Our study demonstrates that TnTs are not specific of epithelial or mesenchymal phenotypes and allow the trafficking of endosomal/lysosomal vesicles, mitochondria, and autophagosomes between both types of cells. We have identified focal adhesion kinase (FAK) as a key molecule required for TnT assembly via a mechanism involving the MMP-2 metalloprotease. We have also found that the FAK inhibitor PF-562271, which is currently in clinical development for cancer treatment, impairs TnT formation. Finally, FAK-deficient cells transfer lysosomes/autophagosomes to FAK-proficient cells via TnTs which may represent a novel mechanism to adapt to the stress elicited by impaired FAK signaling. Collectively, our results strongly suggest a link between FAK, MMP-2, and TnT, and unveil new vulnerabilities that can be exploited to efficiently eradicate cancer cells.
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Affiliation(s)
- Inés Sáenz-de-Santa-María
- Servicio de Otorrinolaringología, Hospital Universitario Central de Asturias, Instituto Universitario de Oncología del Principado de Asturias, CIBERONC, Universidad de Oviedo, Oviedo, Spain
| | - Cristóbal Bernardo-Castiñeira
- Servicio de Otorrinolaringología, Hospital Universitario Central de Asturias, Instituto Universitario de Oncología del Principado de Asturias, CIBERONC, Universidad de Oviedo, Oviedo, Spain
| | - Eduardo Enciso
- Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | | | | | - Carlos Suarez
- Servicio de Otorrinolaringología, Hospital Universitario Central de Asturias, Instituto Universitario de Oncología del Principado de Asturias, CIBERONC, Universidad de Oviedo, Oviedo, Spain
| | - María-Dolores Chiara
- Servicio de Otorrinolaringología, Hospital Universitario Central de Asturias, Instituto Universitario de Oncología del Principado de Asturias, CIBERONC, Universidad de Oviedo, Oviedo, Spain
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Farahnak S, McGovern TK, Kim R, O'Sullivan M, Chen B, Lee M, Yoshie H, Wang A, Jang J, Al Heialy S, Lauzon AM, Martin JG. Basic Fibroblast Growth Factor 2 Is a Determinant of CD4 T Cell-Airway Smooth Muscle Cell Communication through Membrane Conduits. THE JOURNAL OF IMMUNOLOGY 2017; 199:3086-3093. [PMID: 28924004 DOI: 10.4049/jimmunol.1700164] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 08/24/2017] [Indexed: 01/23/2023]
Abstract
Activated CD4 T cells connect to airway smooth muscle cells (ASMCs) in vitro via lymphocyte-derived membrane conduits (LMCs) structurally similar to membrane nanotubes with unknown intercellular signals triggering their formation. We examined the structure and function of CD4 T cell-derived LMCs, and we established a role for ASMC-derived basic fibroblast growth factor 2 (FGF2b) and FGF receptor (FGFR)1 in LMC formation. Blocking FGF2b's synthesis and FGFR1 function reduced LMC formation. Mitochondrial flux from ASMCs to T cells was partially FGF2b and FGFR1 dependent. LMC formation by CD4 T cells and mitochondrial transfer from ASMCs was increased in the presence of asthmatic ASMCs that expressed more mRNA for FGF2b compared with normal ASMCs. These observations identify ASMC-derived FGF2b as a factor needed for LMC formation by CD4 T cells, affecting intercellular communication.
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Affiliation(s)
- Soroor Farahnak
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and.,Department of Medicine, McGill University, Montreal, Quebec H4A 3J1, Canada
| | - Toby K McGovern
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Rachael Kim
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Michael O'Sullivan
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Brian Chen
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Minhyoung Lee
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Haruka Yoshie
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Anna Wang
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Joyce Jang
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Saba Al Heialy
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and
| | - Anne-Marie Lauzon
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and.,Department of Medicine, McGill University, Montreal, Quebec H4A 3J1, Canada
| | - James G Martin
- Meakins-Christie Laboratories, Translational Research in Respiratory Diseases Program, The Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada; and .,Department of Medicine, McGill University, Montreal, Quebec H4A 3J1, Canada
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Abstract
Neurocardiology is an emerging specialty that addresses the interaction between the brain and the heart, that is, the effects of cardiac injury on the brain and the effects of brain injury on the heart. This review article focuses on cardiac dysfunction in the setting of stroke such as ischemic stroke, brain hemorrhage, and subarachnoid hemorrhage. The majority of post-stroke deaths are attributed to neurological damage, and cardiovascular complications are the second leading cause of post-stroke mortality. Accumulating clinical and experimental evidence suggests a causal relationship between brain damage and heart dysfunction. Thus, it is important to determine whether cardiac dysfunction is triggered by stroke, is an unrelated complication, or is the underlying cause of stroke. Stroke-induced cardiac damage may lead to fatality or potentially lifelong cardiac problems (such as heart failure), or to mild and recoverable damage such as neurogenic stress cardiomyopathy and Takotsubo cardiomyopathy. The role of location and lateralization of brain lesions after stroke in brain-heart interaction; clinical biomarkers and manifestations of cardiac complications; and underlying mechanisms of brain-heart interaction after stroke, such as the hypothalamic-pituitary-adrenal axis; catecholamine surge; sympathetic and parasympathetic regulation; microvesicles; microRNAs; gut microbiome, immunoresponse, and systemic inflammation, are discussed.
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Affiliation(s)
- Zhili Chen
- From the Gerontology and Neurological Institute, Tianjin Medical University General Hospital, China (Z.C., T.Y., J.C.); Department of Neurology, Henry Ford Hospital, Detroit, MI (P.V., D.S., M.C., J.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Poornima Venkat
- From the Gerontology and Neurological Institute, Tianjin Medical University General Hospital, China (Z.C., T.Y., J.C.); Department of Neurology, Henry Ford Hospital, Detroit, MI (P.V., D.S., M.C., J.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Don Seyfried
- From the Gerontology and Neurological Institute, Tianjin Medical University General Hospital, China (Z.C., T.Y., J.C.); Department of Neurology, Henry Ford Hospital, Detroit, MI (P.V., D.S., M.C., J.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Michael Chopp
- From the Gerontology and Neurological Institute, Tianjin Medical University General Hospital, China (Z.C., T.Y., J.C.); Department of Neurology, Henry Ford Hospital, Detroit, MI (P.V., D.S., M.C., J.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Tao Yan
- From the Gerontology and Neurological Institute, Tianjin Medical University General Hospital, China (Z.C., T.Y., J.C.); Department of Neurology, Henry Ford Hospital, Detroit, MI (P.V., D.S., M.C., J.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.)
| | - Jieli Chen
- From the Gerontology and Neurological Institute, Tianjin Medical University General Hospital, China (Z.C., T.Y., J.C.); Department of Neurology, Henry Ford Hospital, Detroit, MI (P.V., D.S., M.C., J.C.); and Department of Physics, Oakland University, Rochester, MI (M.C.).
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121
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MicroRNA Profiling Reveals Distinct Profiles for Tissue-Derived and Cultured Endothelial Cells. Sci Rep 2017; 7:10943. [PMID: 28887500 PMCID: PMC5591252 DOI: 10.1038/s41598-017-11487-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 08/25/2017] [Indexed: 12/19/2022] Open
Abstract
Endothelial plasticity enables the cells to switch their phenotype according to the surrounding vascular microenvironment. MicroRNAs (miRNAs) are small noncoding RNAs that control endothelial plasticity. The objective of this study was to investigate the differences in miRNA profiles of tissue-derived cells and cultured endothelial cells. To this end, miRNA expression was profiled from freshly isolated tissue-derived human vascular endothelial cells and endothelial cells cultured until cellular senescence using miRNA sequencing. In addition, the data was searched for putative novel endothelial miRNAs and miRNA isoforms. The data analysis revealed a striking change in endothelial miRNA profile as the cells adapted from tissue to cell culture environment and the overall miRNA expression decreased significantly in cultured compared to tissue-derived endothelial cells. In addition to changes in mechanosensitive miRNA expression, alterations in senescence-associated and endothelial-to-mesenchymal-transition-associated miRNAs were observed in aging cells. Collectively, the data illustrates the adaptability of endothelial cell miRNA expression that mirrors prevailing cellular environment.
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122
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Hong H, Tao T, Chen S, Liang C, Qiu Y, Zhou Y, Zhang R. MicroRNA-143 promotes cardiac ischemia-mediated mitochondrial impairment by the inhibition of protein kinase Cepsilon. Basic Res Cardiol 2017; 112:60. [PMID: 28887629 DOI: 10.1007/s00395-017-0649-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 09/05/2017] [Indexed: 12/30/2022]
Abstract
The cardioprotection of protein kinase Cepsilon (PKCε) against myocardial infarction (MI) mediated by its anti-apoptotic property and underlying mechanism of targeted regulation by microRNA (miRNA) are not established. MI-induced injury, PKCε expression, and targeted regulation of miRNA-143 (miR-143) to PKCε have been evaluated using animal MI and cellular hypoxic models conjugated with series of state-of-art molecular techniques. The results demonstrated that PKCε significantly downregulated along with increased infarcted area and apoptotic and necrotic damage in MI model, and the targeted relationship and potential binding profile were established between miR-143 and PKCε. Both in vivo and in vitro ischemic tests showed that miR-143 induced apoptosis and necrosis, which was reversed by antagomiR-143 or AMO-143. The upregulation of miR-143 by transfection of miR-143 in vitro also induced cell loss, and this effect of miR-143 was completely reversed by co-transfection of miR-143 with AMO-143. The identically deleterious action of miR-143 on mitochondrial membrane potential and ATP synthesis was also observed in both animal MI and cellular hypoxic models, as well as miR-143 overexpressed models and converted by either antagomiR or AMO. Importantly, overexpression of miR-143 downregulated PKCε in all tested models and this downregulation was reversed in the presence of antagomiR or AMO. The direct targeted regulation of miR-143 on PKCε was confirmed by luciferase reporter and miRNA-masking tests. In conclusion, MI-mediated upregulation of miR-143 inhibits PKCε expression and consequently interference with the cardioprotection of PKCε to mitochondrial, and leads to mitochondrial membrane potential dissipation and myocardial death eventually.
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Affiliation(s)
- Hong Hong
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Ting Tao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Si Chen
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Chaoqi Liang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yue Qiu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yuhong Zhou
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Rong Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China.
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MicroRNA-143 and -145 modulate the phenotype of synovial fibroblasts in rheumatoid arthritis. Exp Mol Med 2017; 49:e363. [PMID: 28775366 PMCID: PMC5579506 DOI: 10.1038/emm.2017.108] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 02/19/2017] [Indexed: 01/31/2023] Open
Abstract
Fibroblast-like synoviocytes (FLSs) constitute a major cell subset of rheumatoid arthritis (RA) synovia. Dysregulation of microRNAs (miRNAs) has been implicated in activation and proliferation of RA-FLSs. However, the functional association of various miRNAs with their targets that are characteristic of the RA-FLS phenotype has not been globally elucidated. In this study, we performed microarray analyses of miRNAs and mRNAs in RA-FLSs and osteoarthritis FLSs (OA-FLSs), simultaneously, to validate how dysregulated miRNAs may be associated with the RA-FLS phenotype. Global miRNA profiling revealed that miR-143 and miR-145 were differentially upregulated in RA-FLSs compared to OA-FLSs. miR-143 and miR-145 were highly expressed in independent RA-FLSs. The miRNA-target prediction and network model of the predicted targets identified insulin-like growth factor binding protein 5 (IGFBP5) and semaphorin 3A (SEMA3A) as potential target genes downregulated by miR-143 and miR-145, respectively. IGFBP5 level was inversely correlated with miR-143 expression, and its deficiency rendered RA-FLSs more sensitive to TNFα stimulation, promoting IL-6 production and NF-κB activity. Moreover, SEMA3A was a direct target of miR-145, as determined by a luciferase reporter assay, antagonizing VEGF165-induced increases in the survival, migration and invasion of RA-FLSs. Taken together, our data suggest that enhanced expression of miR-143 and miR-145 renders RA-FLSs susceptible to TNFα and VEGF165 stimuli by downregulating IGFBP5 and SEMA3A, respectively, and that these miRNAs could be therapeutic targets.
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Nabzdyk CS, Pradhan-Nabzdyk L, LoGerfo FW. RNAi therapy to the wall of arteries and veins: anatomical, physiologic, and pharmacological considerations. J Transl Med 2017; 15:164. [PMID: 28754174 PMCID: PMC5534068 DOI: 10.1186/s12967-017-1270-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 07/20/2017] [Indexed: 12/02/2022] Open
Abstract
Background Cardiovascular disease remains a major health care challenge. The knowledge about the underlying mechanisms of the respective vascular disease etiologies has greatly expanded over the last decades. This includes the contribution of microRNAs, endogenous non-coding RNA molecules, known to vastly influence gene expression. In addition, short interference RNA has been established as a mechanism to temporarily affect gene expression. This review discusses challenges relating to the design of a RNA interference therapy strategy for the modulation of vascular disease. Despite advances in medical and surgical therapies, atherosclerosis (ATH), aortic aneurysms (AA) are still associated with high morbidity and mortality. In addition, intimal hyperplasia (IH) remains a leading cause of late vein and prosthetic bypass graft failure. Pathomechanisms of all three entities include activation of endothelial cells (EC) and dedifferentiation of vascular smooth muscle cells (VSMC). RNA interference represents a promising technology that may be utilized to silence genes contributing to ATH, AA or IH. Successful RNAi delivery to the vessel wall faces multiple obstacles. These include the challenge of cell specific, targeted delivery of RNAi, anatomical barriers such as basal membrane, elastic laminae in arterial walls, multiple layers of VSMC, as well as adventitial tissues. Another major decision point is the route of delivery and potential methods of transfection. A plethora of transfection reagents and adjuncts have been described with varying efficacies and side effects. Timing and duration of RNAi therapy as well as target gene choice are further relevant aspects that need to be addressed in a temporo-spatial fashion. Conclusions While multiple preclinical studies reported encouraging results of RNAi delivery to the vascular wall, it remains to be seen if a single target can be sufficient to the achieve clinically desirable changes in the injured vascular wall in humans. It might be necessary to achieve simultaneous and/or sequential silencing of multiple, synergistically acting target genes. Some advances in cell specific RNAi delivery have been made, but a reliable vascular cell specific transfection strategy is still missing. Also, off-target effects of RNAi and unwanted effects of transfection agents on gene expression are challenges to be addressed. Close collaborative efforts between clinicians, geneticists, biologists, and chemical and medical engineers will be needed to provide tailored therapeutics for the various types of vascular diseases.
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Affiliation(s)
- Christoph S Nabzdyk
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,Frank W. LoGerfo Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 110 Francis Street, Boston, MA, 02215, USA
| | - Leena Pradhan-Nabzdyk
- Frank W. LoGerfo Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 110 Francis Street, Boston, MA, 02215, USA.
| | - Frank W LoGerfo
- Frank W. LoGerfo Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 110 Francis Street, Boston, MA, 02215, USA
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Tiedt S, Prestel M, Malik R, Schieferdecker N, Duering M, Kautzky V, Stoycheva I, Böck J, Northoff BH, Klein M, Dorn F, Krohn K, Teupser D, Liesz A, Plesnila N, Holdt LM, Dichgans M. RNA-Seq Identifies Circulating miR-125a-5p, miR-125b-5p, and miR-143-3p as Potential Biomarkers for Acute Ischemic Stroke. Circ Res 2017; 121:970-980. [PMID: 28724745 DOI: 10.1161/circresaha.117.311572] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 07/14/2017] [Accepted: 07/18/2017] [Indexed: 01/22/2023]
Abstract
RATIONALE Currently, there are no blood-based biomarkers with clinical utility for acute ischemic stroke (IS). MicroRNAs show promise as disease markers because of their cell type-specific expression patterns and stability in peripheral blood. OBJECTIVE To identify circulating microRNAs associated with acute IS, determine their temporal course up to 90 days post-stroke, and explore their utility as an early diagnostic marker. METHODS AND RESULTS We used RNA sequencing to study expression changes of circulating microRNAs in a discovery sample of 20 patients with IS and 20 matched healthy control subjects. We further applied quantitative real-time polymerase chain reaction in independent samples for validation (40 patients with IS and 40 matched controls), replication (200 patients with IS, 100 healthy control subjects), and in 72 patients with transient ischemic attacks. Sampling of patient plasma was done immediately upon hospital arrival. We identified, validated, and replicated 3 differentially expressed microRNAs, which were upregulated in patients with IS compared with both healthy control subjects (miR-125a-5p [1.8-fold; P=1.5×10-6], miR-125b-5p [2.5-fold; P=5.6×10-6], and miR-143-3p [4.8-fold; P=7.8×10-9]) and patients with transient ischemic attack (miR-125a-5p: P=0.003; miR-125b-5p: P=0.003; miR-143-3p: P=0.005). Longitudinal analysis of expression levels up to 90 days after stroke revealed a normalization to control levels for miR-125b-5p and miR-143-3p starting at day 2 while miR-125a-5p remained elevated. Levels of all 3 microRNAs depended on platelet numbers in a platelet spike-in experiment but were unaffected by chemical hypoxia in Neuro2a cells and in experimental stroke models. In a random forest classification, miR-125a-5p, miR-125b-5p, and miR-143-3p differentiated between healthy control subjects and patients with IS with an area under the curve of 0.90 (sensitivity: 85.6%; specificity: 76.3%), which was superior to multimodal cranial computed tomography obtained for routine diagnostics (sensitivity: 72.5%) and previously reported biomarkers of acute IS (neuron-specific enolase: area under the curve=0.69; interleukin 6: area under the curve=0.82). CONCLUSIONS A set of circulating microRNAs (miR-125a-5p, miR-125b-5p, and miR-143-3p) associates with acute IS and might have clinical utility as an early diagnostic marker.
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Affiliation(s)
- Steffen Tiedt
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Matthias Prestel
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Rainer Malik
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Nicola Schieferdecker
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Marco Duering
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Veronika Kautzky
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Ivelina Stoycheva
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Julia Böck
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Bernd H Northoff
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Matthias Klein
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Franziska Dorn
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Knut Krohn
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Daniel Teupser
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Arthur Liesz
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Nikolaus Plesnila
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Lesca Miriam Holdt
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.)
| | - Martin Dichgans
- From the Institute for Stroke and Dementia Research, Klinikum der Universität München (S.T., M.P., R.M., N.S., M.D., V.K., I.S., J.B., A.L., N.P., M.D.), Graduate School of Systemic Neurosciences (S.T.), Institute of Laboratory Medicine, Klinikum der Universität München (B.H.N., D.T., L.M.H.), Department of Neurology, Klinikum der Universität München (M.K.), and Department of Neuroradiology, Klinikum der Universität München (F.D.), Ludwig-Maximilians-Universität LMU, Germany; Munich Cluster for Systems Neurology (SyNergy), Germany (S.T., A.L., N.P., M.D.); and Interdisciplinary Center for Clinical Research (IZKF), University of Leipzig, Germany (K.K.).
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Nawaz M, Fatima F. Extracellular Vesicles, Tunneling Nanotubes, and Cellular Interplay: Synergies and Missing Links. Front Mol Biosci 2017; 4:50. [PMID: 28770210 PMCID: PMC5513920 DOI: 10.3389/fmolb.2017.00050] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 07/03/2017] [Indexed: 12/15/2022] Open
Abstract
The process of intercellular communication seems to have been a highly conserved evolutionary process. Higher eukaryotes use several means of intercellular communication to address both the changing physiological demands of the body and to fight against diseases. In recent years, there has been an increasing interest in understanding how cell-derived nanovesicles, known as extracellular vesicles (EVs), can function as normal paracrine mediators of intercellular communication, but can also elicit disease progression and may be used for innovative therapies. Over the last decade, a large body of evidence has accumulated to show that cells use cytoplasmic extensions comprising open-ended channels called tunneling nanotubes (TNTs) to connect cells at a long distance and facilitate the exchange of cytoplasmic material. TNTs are a different means of communication to classical gap junctions or cell fusions; since they are characterized by long distance bridging that transfers cytoplasmic organelles and intracellular vesicles between cells and represent the process of heteroplasmy. The role of EVs in cell communication is relatively well-understood, but how TNTs fit into this process is just emerging. The aim of this review is to describe the relationship between TNTs and EVs, and to discuss the synergies between these two crucial processes in the context of normal cellular cross-talk, physiological roles, modulation of immune responses, development of diseases, and their combinatory effects in tissue repair. At the present time this review appears to be the first summary of the implications of the overlapping roles of TNTs and EVs. We believe that a better appreciation of these parallel processes will improve our understanding on how these nanoscale conduits can be utilized as novel tools for targeted therapies.
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Affiliation(s)
- Muhammad Nawaz
- Department of Pathology and Forensic Medicine, Ribeirao Preto Medical School, University of São PauloSão Paulo, Brazil.,Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of GothenburgGothenburg, Sweden
| | - Farah Fatima
- Department of Pathology and Forensic Medicine, Ribeirao Preto Medical School, University of São PauloSão Paulo, Brazil
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Cheng XW, Wan YF, Zhou Q, Wang Y, Zhu HQ. MicroRNA‑126 inhibits endothelial permeability and apoptosis in apolipoprotein E‑knockout mice fed a high‑fat diet. Mol Med Rep 2017; 16:3061-3068. [PMID: 28713948 PMCID: PMC5548065 DOI: 10.3892/mmr.2017.6952] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 03/21/2017] [Indexed: 02/01/2023] Open
Abstract
Endothelial dysfunction and apoptosis have key roles in the initiation and progression of atherosclerosis (AS). AS has been demonstrated to be associated with a high-fat diet, which may increase endothelial permeability and apoptosis; however, the exact mechanisms underlying the development of AS remain poorly understood. MicroRNAs (miRNAs) are vital for the regulation of cardiovascular disease, and dysregulated miRNAs have been implicated in AS. The present study investigated whether miRNA (miR)-126 regulates high-fat diet-induced endothelial permeability and apoptosis by targeting transforming growth factor β (TGFβ), a secreted protein that controls cellular proliferation and apoptosis. In the present study, apolipoprotein E (apoE)−/− mice were fed a high-fat diet in order to establish a model of AS. Mice were subcutaneously injected with a miR-126 mimic, a miR-126 antagomir or control miRNA. Reverse transcription-quantitative polymerase chain reaction was used to assess miR-126 expression, and a fluorometric assay was used to evaluate caspase-3 activity. The effects of miR-126 on the endothelial permeability of the aortic intima were also explored. Western blotting and immunohistochemical analysis were used to investigate the effects of miR-126 on B-cell lymphoma-2 (Bcl-2) and transforming growth factor (TGF) β protein expression levels. Furthermore, a luciferase assay was performed to verify whether TGFβ may be a direct target gene of miR-126. In apolipoprotein E-knockout mice, a high-fat diet reduced miR-126 expression and induced apoptosis as determined by the upregulation of caspase-3 activity. A miR-126 antagomir increased endothelial permeability and apoptosis in mice fed a high-fat diet. By contrast, an miR-126 mimic attenuated endothelial permeability and apoptosis. The reduction in miR-126 was associated with a reduction in protein expression levels of Bcl-2 and an increase of TGFβ in mice fed a high-fat diet. In addition, the present study demonstrated that miR-126 reduced TGFβ expression following binding to the 3′-untranslated region of TGFβ mRNA. The current study demonstrated a role for miR-126 in AS and identified TGFβ as a direct target of miR-126. Furthermore, the present study demonstrated that miR-126 contributed to endothelial permeability and apoptosis, and suggested that the downregulation of TGFβ may be involved in the molecular mechanisms underlying the actions of miR-126. miR-126 may therefore have potential as a novel therapeutic target for the treatment of AS.
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Affiliation(s)
- Xiao-Wen Cheng
- Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Yu-Feng Wan
- Department of Otolaryngology, The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, P.R. China
| | - Qing Zhou
- Laboratory of Molecular Biology and Department of Biochemistry, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Yuan Wang
- Laboratory of Molecular Biology and Department of Biochemistry, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Hua-Qing Zhu
- Laboratory of Molecular Biology and Department of Biochemistry, Anhui Medical University, Hefei, Anhui 230032, P.R. China
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Epigenetic regulation of TGF-β1 signalling in dilative aortopathy of the thoracic ascending aorta. Clin Sci (Lond) 2017; 130:1389-405. [PMID: 27389586 DOI: 10.1042/cs20160222] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 04/11/2016] [Indexed: 01/21/2023]
Abstract
The term 'epigenetics' refers to heritable, reversible DNA or histone modifications that affect gene expression without modifying the DNA sequence. Epigenetic modulation of gene expression also includes the RNA interference mechanism. Epigenetic regulation of gene expression is fundamental during development and throughout life, also playing a central role in disease progression. The transforming growth factor β1 (TGF-β1) and its downstream effectors are key players in tissue repair and fibrosis, extracellular matrix remodelling, inflammation, cell proliferation and migration. TGF-β1 can also induce cell switch in epithelial-to-mesenchymal transition, leading to myofibroblast transdifferentiation. Cellular pathways triggered by TGF-β1 in thoracic ascending aorta dilatation have relevant roles to play in remodelling of the vascular wall by virtue of their association with monogenic syndromes that implicate an aortic aneurysm, including Loeys-Dietz and Marfan's syndromes. Several studies and reviews have focused on the progression of aneurysms in the abdominal aorta, but research efforts are now increasingly being focused on pathogenic mechanisms of thoracic ascending aorta dilatation. The present review summarizes the most recent findings concerning the epigenetic regulation of effectors of TGF-β1 pathways, triggered by sporadic dilative aortopathy of the thoracic ascending aorta in the presence of a tricuspid or bicuspid aortic valve, a congenital malformation occurring in 0.5-2% of the general population. A more in-depth comprehension of the epigenetic alterations associated with TGF-β1 canonical and non-canonical pathways in dilatation of the ascending aorta could be helpful to clarify its pathogenesis, identify early potential biomarkers of disease, and, possibly, develop preventive and therapeutic strategies.
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miR-138 promotes migration and tube formation of human cytomegalovirus-infected endothelial cells through the SIRT1/p-STAT3 pathway. Arch Virol 2017; 162:2695-2704. [DOI: 10.1007/s00705-017-3423-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 05/16/2017] [Indexed: 10/19/2022]
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Elia L, Quintavalle M. Epigenetics and Vascular Diseases: Influence of Non-coding RNAs and Their Clinical Implications. Front Cardiovasc Med 2017; 4:26. [PMID: 28497038 PMCID: PMC5406412 DOI: 10.3389/fcvm.2017.00026] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 04/12/2017] [Indexed: 01/25/2023] Open
Abstract
Epigenetics refers to heritable mechanisms able to modulate gene expression that do not involve alteration of the genomic DNA sequence. Classically, mechanisms such as DNA methylation and histone modifications were part of this classification. Today, this field of study has been expanded and includes also the large class of non-coding RNAs (ncRNAs). Indeed, with the extraordinary possibilities introduced by the next-generation sequencing approaches, our knowledge of the mammalian transcriptome has greatly improved. Today, we have identifying thousands of ncRNAs, and unsurprisingly, a direct association between ncRNA dysregulation and development of cardiovascular pathologies has been identified. This class of gene modulators is further divided into short-ncRNAs and long-non-coding RNAs (lncRNAs). Among the short-ncRNA sub-group, the best-characterized players are represented by highly conserved RNAs named microRNAs (miRNAs). miRNAs principally inhibit gene expression, and their involvement in cardiovascular diseases has been largely studied. On the other hand, due to the different roles played by lncRNAs, their involvement in cardiovascular pathology development is still limited, and further studies are needed. For instance, in order to define their roles in the cellular processes associated with the development of diseases, we need to better characterize the details of their mechanisms of action; only then might we be able to develop innovative therapeutic strategies. In this review, we would like to give an overview of the current knowledge on the function of ncRNAs and their involvement in the development of vascular diseases.
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Affiliation(s)
- Leonardo Elia
- Humanitas Clinical and Research Center, Milan, Italy.,Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
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Ottaviani L, da Costa Martins PA. Non-coding RNAs in cardiac hypertrophy. J Physiol 2017; 595:4037-4050. [PMID: 28233323 PMCID: PMC5471409 DOI: 10.1113/jp273129] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 02/21/2017] [Indexed: 12/23/2022] Open
Abstract
Heart failure is one of the largest contributors to disease burden and healthcare outflow in the Western world. Despite significant progress in the treatment of heart failure, disease prognosis remains very poor, with the only curative therapy still being heart transplantation. To counteract the current situation, efforts have been made to better understand the underlying molecular pathways in the progression of cardiac disease towards heart failure, and to link the disease to novel therapeutic targets such as non‐coding RNAs. The non‐coding part of the genome has gained prominence over the last couple of decades, opening a completely new research field and establishing different non‐coding RNAs species as fundamental regulators of cellular functions. Not surprisingly, their dysregulation is increasingly being linked to pathology, including to cardiac disease. Pre‐clinically, non‐coding RNAs have been shown to be of great value as therapeutic targets in pathological cardiac remodelling and also as diagnostic/prognostic biomarkers for heart failure. Therefore, it is to be expected that non‐coding RNA‐based therapeutic strategies will reach the bedside in the future and provide new and more efficient treatments for heart failure. Here, we review recent discoveries linking the function and molecular interactions of non‐coding RNAs with the pathophysiology of cardiac hypertrophy and heart failure.
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Affiliation(s)
- Lara Ottaviani
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Paula A da Costa Martins
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.,Department of Physiology and Cardiothoracic Surgery, Faculty of Medicine, University of Porto, Porto, Portugal
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Olsen LC, O'Reilly KC, Liabakk NB, Witter MP, Sætrom P. MicroRNAs contribute to postnatal development of laminar differences and neuronal subtypes in the rat medial entorhinal cortex. Brain Struct Funct 2017; 222:3107-3126. [PMID: 28260163 PMCID: PMC5585308 DOI: 10.1007/s00429-017-1389-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 02/13/2017] [Indexed: 01/23/2023]
Abstract
The medial entorhinal cortex (MEC) is important in spatial navigation and memory formation and its layers have distinct neuronal subtypes, connectivity, spatial properties, and disease susceptibility. As little is known about the molecular basis for the development of these laminar differences, we analyzed microRNA (miRNA) and messenger RNA (mRNA) expression differences between rat MEC layer II and layers III–VI during postnatal development. We identified layer and age-specific regulation of gene expression by miRNAs, which included processes related to neuron specialization and locomotor behavior. Further analyses by retrograde labeling and expression profiling of layer II stellate neurons and in situ hybridization revealed that the miRNA most up-regulated in layer II, miR-143, was enriched in stellate neurons, whereas the miRNA most up-regulated in deep layers, miR-219-5p, was expressed in ependymal cells, oligodendrocytes and glia. Bioinformatics analyses of predicted mRNA targets with negatively correlated expression patterns to miR-143 found that miR-143 likely regulates the Lmo4 gene, which is known to influence hippocampal-based spatial learning.
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Affiliation(s)
- Lene C Olsen
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kally C O'Reilly
- Kavli Institute for Systems Neuroscience and Centre for Neural Computation, Norwegian University for Science and Technology, Trondheim, Norway
| | - Nina B Liabakk
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Menno P Witter
- Kavli Institute for Systems Neuroscience and Centre for Neural Computation, Norwegian University for Science and Technology, Trondheim, Norway
| | - Pål Sætrom
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway. .,Department of Computer and Information Science, Norwegian University for Science and Technology, Trondheim, Norway. .,Bioinformatics core facility-BioCore, Norwegian University of Science and Technology, Trondheim, Norway.
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133
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Xia HF, Ren JG, Zhu JY, Yu ZL, Zhang W, Sun YF, Zhao YF, Chen G. Downregulation of miR-145 in venous malformations: Its association with disorganized vessels and sclerotherapy. Eur J Pharm Sci 2017; 100:126-131. [DOI: 10.1016/j.ejps.2017.01.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 01/02/2017] [Accepted: 01/16/2017] [Indexed: 01/04/2023]
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134
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Vimalraj S, Sumantran VN, Chatterjee S. MicroRNAs: Impaired vasculogenesis in metal induced teratogenicity. Reprod Toxicol 2017; 70:30-48. [PMID: 28249814 DOI: 10.1016/j.reprotox.2017.02.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 02/14/2017] [Accepted: 02/21/2017] [Indexed: 02/07/2023]
Abstract
Certain metals have been known for their toxic effects on embryos and fetal development. The vasculature in early pregnancy is extremely dynamic and plays an important role in organogenesis. Nascent blood vessels in early embryonic life are considered to be a primary and delicate target for many teratogens since the nascent blood islands follow a tightly controlled program to form vascular plexus around and inside the embryo for resourcing optimal ingredients for its development. The state of the distribution of toxic metals, their transport mechanisms and the molecular events by which they notch extra-embryonic and embryonic vasculatures are illustrated. In addition, pharmacological aspects of toxic metal induced teratogenicity have also been portrayed. The work reviewed state of the current knowledge of specific role of microRNAs (miRNAs) that are differentially expressed in response to toxic metals, and how they interfere with the vasculogenesis that manifests into embryonic anomalies.
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Affiliation(s)
- Selvaraj Vimalraj
- Vascular Biology Lab, AU-KBC Research Centre, Anna University, Chennai, India.
| | | | - Suvro Chatterjee
- Vascular Biology Lab, AU-KBC Research Centre, Anna University, Chennai, India; Department of Biotechnology, Anna University, Chennai, India.
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135
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Patients with bicuspid and tricuspid aortic valve exhibit distinct regional microrna signatures in mildly dilated ascending aorta. Heart Vessels 2017; 32:750-767. [DOI: 10.1007/s00380-016-0942-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 12/26/2016] [Indexed: 01/25/2023]
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136
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TGF-β signaling controls FSHR signaling-reduced ovarian granulosa cell apoptosis through the SMAD4/miR-143 axis. Cell Death Dis 2016; 7:e2476. [PMID: 27882941 PMCID: PMC5260897 DOI: 10.1038/cddis.2016.379] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 10/09/2016] [Accepted: 10/17/2016] [Indexed: 01/13/2023]
Abstract
Follicle-stimulating hormone receptor (FSHR) and its intracellular signaling control mammalian follicular development and female infertility. Our previous study showed that FSHR is downregulated during follicular atresia of porcine ovaries. However, its role and regulation in follicular atresia remain unclear. Here, we showed that FSHR knockdown induced porcine granulosa cell (pGC) apoptosis and follicular atresia, and attenuated the levels of intracellular signaling molecules such as PKA, AKT and p-AKT. FSHR was identified as a target of miR-143, a microRNA that was upregulated during porcine follicular atresia. miR-143 enhanced pGC apoptosis by targeting FSHR, and reduced the levels of intracellular signaling molecules. SMAD4, the final molecule in transforming growth factor (TGF)-β signaling, bound to the promoter and induced significant downregulation of miR-143 in vitro and in vivo. Activated TGF-β signaling rescued miR-143-reduced FSHR and intracellular signaling molecules, and miR-143-induced pGC apoptosis. Overall, our findings offer evidence to explain how TGF-β signaling influences and FSHR signaling for regulation of pGC apoptosis and follicular atresia by a specific microRNA, miR-143.
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137
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Surges R, Kretschmann A, Abnaof K, van Rikxoort M, Ridder K, Fröhlich H, Danis B, Kaminski RM, Foerch P, Elger CE, Weinsberg F, Pfeifer A. Changes in serum miRNAs following generalized convulsive seizures in human mesial temporal lobe epilepsy. Biochem Biophys Res Commun 2016; 481:13-18. [PMID: 27833019 DOI: 10.1016/j.bbrc.2016.11.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 11/07/2016] [Indexed: 01/25/2023]
Abstract
MicroRNAs (miRNAs) are key regulators of gene expression and are involved in the pathomechanisms of epilepsy. MiRNAs may also serve as peripheral biomarkers of epilepsy. We investigated the miRNA profile in the blood serum of patients suffering from mesial temporal lobe epilepsy (mTLE) following a single focal seizure evolving to a bilateral convulsive seizure (BCS) during video-EEG monitoring. Data of 15 patients were included in the final analysis. MiRNA expression was determined using Real Time-PCR followed by thorough bioinformatical analysis of expression levels. We found that more than 200 miRNAs were differentially expressed in the serum of patients within 30 min after a single seizure. Validation of the 20 top miRNA candidates confirmed that 4 miRNAs (miR-143, miR-145, miR-532, miR-365a) were significantly deregulated. Interestingly, in a sub-group of patients with seizures occurring during sleep, we found 10 miRNAs to be deregulated up to 20-28 h after the seizure. In this group of patients, miR-663b was significantly deregulated. We conclude that single seizures are associated with detectable transient miRNA alterations in blood serum in the early postictal phase. The significant upregulation of miR-663b following BCS arising during sleep indicates potential suitability of this miRNA as a potential biomarker for seizure diagnostics.
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Affiliation(s)
- Rainer Surges
- Department of Epileptology, University Hospital of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Anita Kretschmann
- Institute of Pharmacology and Toxicology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Khalid Abnaof
- Bonn-Aachen International Center for Information Technology (B-IT), Algorithmic Bioinformatics, University of Bonn, Dahlmannstr. 2, 53113, Bonn, Germany
| | - Marijke van Rikxoort
- Institute of Pharmacology and Toxicology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Kirsten Ridder
- Institute of Pharmacology and Toxicology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Holger Fröhlich
- Bonn-Aachen International Center for Information Technology (B-IT), Algorithmic Bioinformatics, University of Bonn, Dahlmannstr. 2, 53113, Bonn, Germany
| | - Bénédicte Danis
- UCB Pharma GmbH, Alfred-Nobel-Straße 10, 40789, Monheim, Germany
| | - Rafal M Kaminski
- UCB Pharma GmbH, Alfred-Nobel-Straße 10, 40789, Monheim, Germany
| | - Patrik Foerch
- UCB Pharma GmbH, Alfred-Nobel-Straße 10, 40789, Monheim, Germany
| | - Christian E Elger
- Department of Epileptology, University Hospital of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Frank Weinsberg
- UCB Pharma GmbH, Alfred-Nobel-Straße 10, 40789, Monheim, Germany.
| | - Alexander Pfeifer
- Institute of Pharmacology and Toxicology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany.
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138
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Bai Y, Zhang Y, Hua J, Yang X, Zhang X, Duan M, Zhu X, Huang W, Chao J, Zhou R, Hu G, Yao H. Silencing microRNA-143 protects the integrity of the blood-brain barrier: implications for methamphetamine abuse. Sci Rep 2016; 6:35642. [PMID: 27767041 PMCID: PMC5073292 DOI: 10.1038/srep35642] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 10/03/2016] [Indexed: 12/31/2022] Open
Abstract
MicroRNA-143 (miR-143) plays a critical role in various cellular processes; however, the role of miR-143 in the maintenance of blood-brain barrier (BBB) integrity remains poorly defined. Silencing miR-143 in a genetic animal model or via an anti-miR-143 lentivirus prevented the BBB damage induced by methamphetamine. miR-143, which targets p53 unregulated modulator of apoptosis (PUMA), increased the permeability of human brain endothelial cells and concomitantly decreased the expression of tight junction proteins (TJPs). Silencing miR-143 increased the expression of TJPs and protected the BBB integrity against the effects of methamphetamine treatment. PUMA overexpression increased the TJP expression through a mechanism that involved the NF-κB and p53 transcription factor pathways. Mechanistically, methamphetamine mediated up-regulation of miR-143 via sigma-1 receptor with sequential activation of the mitogen-activated protein kinase (MAPK) and phosphatidylinositol-3' kinase (PI3K)/Akt and STAT3 pathways. These results indicated that silencing miR-143 could provide a novel therapeutic strategy for BBB damage-related vascular dysfunction.
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Affiliation(s)
- Ying Bai
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Yuan Zhang
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Jun Hua
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, China
| | - Xiangyu Yang
- Institute of Life Sciences, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, Jiangsu, China
| | - Xiaotian Zhang
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Ming Duan
- Virosis Laboratory, Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, Jilin University, 5333 Xi An Road, Changchun, 130062, China
| | - Xinjian Zhu
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Wenhui Huang
- Department of Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg D-66421, Germany
| | - Jie Chao
- Department of Physiology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Rongbin Zhou
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, China
| | - Gang Hu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, China
| | - Honghong Yao
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, Jiangsu, China
- Institute of Life Sciences, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, Jiangsu, China
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139
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Abstract
PURPOSE OF REVIEW Noncoding RNAs (ncRNAs), such as microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) are becoming fundamentally important in the pathophysiology relating to injury-induced vascular remodelling. We highlight recent studies that demonstrate the involvement of ncRNAs in vein graft disease, in in-stent restenosis and in pulmonary arterial hypertension, with a particular focus on endothelial cell and vascular smooth muscle cell function. We also briefly discuss the emerging role of exosomal-derived ncRNAs and how this mechanism impacts on vascular function. RECENT FINDINGS ncRNAs have been described as novel regulators in the pathophysiology of vascular injury, inflammation, and vessel wall remodelling. In particular, several studies have demonstrated that manipulation of miRNAs can reduce the burden of pathological vascular remodelling. Such studies have also shown that exosomal miRNA-mediated, cell-to-cell communication between endothelial cells and vascular smooth muscle cells is critical in the disease process. In addition to miRNAs, lncRNAs are emerging as regulators of vascular function in health and disease. Although lncRNAs are complex in both their sheer numbers and mechanisms of action, identifying their contribution to vascular disease is essential. SUMMARY Given the important roles of ncRNAs in vascular injury and remodelling together will their capacity for cell-to-cell communication, manipulating ncRNA might provide novel therapeutic interventions.
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Affiliation(s)
- Lin Deng
- aBHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow bCentre for Cardiovascular Science, Queen's Medical Research Institute, BHF/University of Edinburgh, Edinburgh, UK
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140
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Gao Y, Chen T, Raj JU. Endothelial and Smooth Muscle Cell Interactions in the Pathobiology of Pulmonary Hypertension. Am J Respir Cell Mol Biol 2016; 54:451-60. [PMID: 26744837 DOI: 10.1165/rcmb.2015-0323tr] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In the pulmonary vasculature, the endothelial and smooth muscle cells are two key cell types that play a major role in the pathobiology of pulmonary vascular disease and pulmonary hypertension. The normal interactions between these two cell types are important for the homeostasis of the pulmonary circulation, and any aberrant interaction between them may lead to various disease states including pulmonary vascular remodeling and pulmonary hypertension. It is well recognized that the endothelial cell can regulate the function of the underlying smooth muscle cell by releasing various bioactive agents such as nitric oxide and endothelin-1. In addition to such paracrine regulation, other mechanisms exist by which there is cross-talk between these two cell types, including communication via the myoendothelial injunctions and information transfer via extracellular vesicles. Emerging evidence suggests that these nonparacrine mechanisms play an important role in the regulation of pulmonary vascular tone and the determination of cell phenotype and that they are critically involved in the pathobiology of pulmonary hypertension.
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Affiliation(s)
- Yuansheng Gao
- 1 Department of Physiology and Pathophysiology, Health Science Center, Peking University, Beijing, China; and
| | - Tianji Chen
- 2 Department of Pediatrics, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - J Usha Raj
- 2 Department of Pediatrics, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
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141
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Gareri C, De Rosa S, Indolfi C. MicroRNAs for Restenosis and Thrombosis After Vascular Injury. Circ Res 2016; 118:1170-84. [PMID: 27034278 DOI: 10.1161/circresaha.115.308237] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/01/2016] [Indexed: 12/21/2022]
Abstract
Percutaneous revascularization revolutionized the therapy of patients with coronary artery disease. Despite continuous technical advances that substantially improved patients' outcome after percutaneous revascularization, some issues are still open. In particular, restenosis still represents a challenge, even though it was dramatically reduced with the advent of drug-eluting stents. At the same time, drug-eluting stent thrombosis emerged as a major concern because of incomplete or delayed re-endothelialization after vascular injury. The discovery of microRNAs revealed a previously unknown layer of regulation for several biological processes, increasing our knowledge on the biological mechanisms underlying restenosis and stent thrombosis, revealing novel promising targets for more efficient and selective therapies. The present review summarizes recent experimental and clinical evidence on the role of microRNAs after arterial injury, focusing on practical aspects of their potential therapeutic application for selective inhibition of smooth muscle cell proliferation, enhancement of endothelial regeneration, and inhibition of platelet activation after coronary interventions. Application of circulating microRNAs as potential biomarkers is also discussed.
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Affiliation(s)
- Clarice Gareri
- From the Department of Medicine, Duke University, Durham, NC (C.G.); Division of Cardiology, Department of Medical and Surgical Science, "Magna Graecia" University, Catanzaro, Italy (S.D.R., C.I.); and URT-CNR, Department of Medicine, URT of Consiglio Nazionale delle Ricerche, Catanzaro, Italy (C.I.)
| | - Salvatore De Rosa
- From the Department of Medicine, Duke University, Durham, NC (C.G.); Division of Cardiology, Department of Medical and Surgical Science, "Magna Graecia" University, Catanzaro, Italy (S.D.R., C.I.); and URT-CNR, Department of Medicine, URT of Consiglio Nazionale delle Ricerche, Catanzaro, Italy (C.I.)
| | - Ciro Indolfi
- From the Department of Medicine, Duke University, Durham, NC (C.G.); Division of Cardiology, Department of Medical and Surgical Science, "Magna Graecia" University, Catanzaro, Italy (S.D.R., C.I.); and URT-CNR, Department of Medicine, URT of Consiglio Nazionale delle Ricerche, Catanzaro, Italy (C.I.).
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142
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Flamant S, Tamarat R. Extracellular Vesicles and Vascular Injury: New Insights for Radiation Exposure. Radiat Res 2016; 186:203-18. [PMID: 27459703 DOI: 10.1667/rr14482.1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This article reviews our current knowledge about cell-derived extracellular vesicles (EVs), including microparticles and exosomes, and their emergence as mediators of a new important mechanism of cell-to-cell communication. Particular emphasis has been given to the increasing involvement of EVs in the field of radiation-induced vascular injury. Although EVs have been considered for a long time as cell "dust", they in fact precisely reflect the physiological state of the cells. The role of microparticles and exosomes in mediating vascular dysfunction suggests that they may represent novel pathways in short- or long-distance paracrine intercellular signaling in vascular environment. In this article, the mechanisms involved in the biogenesis of microparticles and exosomes, their composition and participation in the pathogenesis of vascular dysfunction are discussed. Furthermore, this article highlights the concept of EVs as potent vectors of biological information and protagonists of an intercellular communication network. Special emphasis is made on EV-mediated microRNA transfer and on the principal consequences of such signal exchange on vascular injury and radiation-induced nontargeted effect. The recent progress in elucidating the biology of EVs has provided new insights for the field of radiation, advancing their use as diagnostic biomarkers or in therapeutic interventions.
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Affiliation(s)
- Stéphane Flamant
- Institute for Radiological Protection and Nuclear Safety (IRSN) PRP-HOM/SRBE/LR2I, Fontenay-aux-Roses, France
| | - Radia Tamarat
- Institute for Radiological Protection and Nuclear Safety (IRSN) PRP-HOM/SRBE/LR2I, Fontenay-aux-Roses, France
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143
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Cui C, Ye X, Chopp M, Venkat P, Zacharek A, Yan T, Ning R, Yu P, Cui G, Chen J. miR-145 Regulates Diabetes-Bone Marrow Stromal Cell-Induced Neurorestorative Effects in Diabetes Stroke Rats. Stem Cells Transl Med 2016; 5:1656-1667. [PMID: 27460851 PMCID: PMC5189645 DOI: 10.5966/sctm.2015-0349] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 05/13/2016] [Indexed: 01/08/2023] Open
Abstract
In rats with type 1 diabetes mellitus (T1DM) subject to stroke, the therapeutic effects and underlying mechanisms of action of bone-marrow stromal cells (BMSCs) derived from T1DM rats (DM-BMSCs) and BMSCs derived from normal rats (Nor-BMSCs) were compared. In vitro and in vivo, DM-BMSCs exhibited decreased miR-145 expression. In T1DM rats, DM-BMSC treatment significantly improved functional outcome and increased vascular and white matter remodeling. However, overexpression of miR-145 in DM-BMSCs attenuates DM-BMSC-induced neurorestorative effects in T1DM stroke rats. In rats with type 1 diabetes (T1DM), the therapeutic effects and underlying mechanisms of action of stroke treatment were compared between bone-marrow stromal cells (BMSCs) derived from T1DM rats (DM-BMSCs) and BMSCs derived from normal rats (Nor-BMSCs). The novel role of microRNA-145 (miR-145) in mediating DM-BMSC treatment-induced benefits was also investigated. T1DM rats (n = 8 per group) underwent 2 hours of middle cerebral artery occlusion (MCAo) and were treated 24 hours later with the one of the following (5 × 106 cells administered i.v.): (a) phosphate-buffered saline (PBS); (b) Nor-BMSCs; (c) DM-BMSCs; (d) DM-BMSCs with miR-145 overexpression (miR-145+/+DM-BMSCs); or (e) Nor-BMSCs with miR-145 knockdown. Evaluation of functional outcome, vascular and white-matter remodeling and microRNA expression was made, and in vitro studies were performed. In vitro, DM-BMSCs exhibited decreased miR-145 expression and increased survival compared with Nor-BMSCs. Capillary tube formation and axonal outgrowth in cultured primary cortical neurons were significantly increased by DM-BMSC-conditioned medium compared with Nor-BMSCs, and significantly decreased by miR-145+/+DM-BMSC-conditioned medium compared with DM-BMSCs. In T1DM rats in which stroke had been induced (T1DM stroke rats), DM-BMSC treatment significantly improved functional outcome, increased vascular and white matter remodeling, decreased serum miR-145 expression, and increased expression of the miR-145 target genes adenosine triphosphate-binding cassette transporter 1 (ABCA1) and insulin-like growth factor 1 receptor (IGFR1), compared with Nor-BMSCs or PBS treatment. However, miR-145+/+DM-BMSCs significantly increased serum miR-145 expression and decreased brain ABCA1 and IGFR1 expression, as well as attenuated DM-BMSC-induced neurorestorative effects in T1DM-MCAo rats. DM-BMSCs exhibited decreased miR-145 expression. In T1DM-MCAo rats, DM-BMSC treatment improved functional outcome and promoted neurorestorative effects. The miR-145/ABCA1/IGFR1 pathway may contribute to the enhanced DM-BMSCs’ functional and neurorestorative effects in T1DM stroke rats. Significance In rats with type 1 diabetes (T1DM), the therapeutic effects and underlying mechanisms of action of stroke treatment were compared between bone-marrow stromal cells (BMSCs) derived from T1DM rats (DM-BMSCs) and BMSCs derived from normal rats (Nor-BMSCs). In vitro, DM-BMSCs and derived exosomes decreased miR-145 expression and increased DM-BMSC survival, capillary tube formation, and axonal outgrowth, compared with Nor-BMSCs; these effects were decreased by DM-BMSCs in which miR-145 was overexpressed. In vivo, compared with Nor-BMSC or phosphate-buffered saline treatment, DM-BMSC treatment improved functional outcome and vascular and white matter remodeling, decreased serum miR-145 expression, and increased expression of the miR-145 target genes ABCA1 and IGFR1. microRNA-145 mediated the benefits induced by DM-BMSC treatment.
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Affiliation(s)
- Chengcheng Cui
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, People's Republic of China
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, USA
| | - Xinchun Ye
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, People's Republic of China
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, USA
- Department of Physics, Oakland University, Rochester, Michigan, USA
| | - Poornima Venkat
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, USA
- Department of Physics, Oakland University, Rochester, Michigan, USA
| | - Alex Zacharek
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, USA
| | - Tao Yan
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, USA
| | - Ruizhou Ning
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, USA
| | - Peng Yu
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, USA
| | - Guiyun Cui
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, People's Republic of China
| | - Jieli Chen
- Department of Neurology, Henry Ford Hospital, Detroit, Michigan, USA
- Department of Geriatrics, Tianjin Geriatrics Institute, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
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144
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García-Donas J, Beuselinck B, Inglada-Pérez L, Graña O, Schöffski P, Wozniak A, Bechter O, Apellániz-Ruiz M, Leandro-García LJ, Esteban E, Castellano DE, González Del Alba A, Climent MA, Hernando S, Arranz JA, Morente M, Pisano DG, Robledo M, Rodriguez-Antona C. Deep sequencing reveals microRNAs predictive of antiangiogenic drug response. JCI Insight 2016; 1:e86051. [PMID: 27699216 DOI: 10.1172/jci.insight.86051] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The majority of metastatic renal cell carcinoma (RCC) patients are treated with tyrosine kinase inhibitors (TKI) in first-line treatment; however, a fraction are refractory to these antiangiogenic drugs. MicroRNAs (miRNAs) are regulatory molecules proven to be accurate biomarkers in cancer. Here, we identified miRNAs predictive of progressive disease under TKI treatment through deep sequencing of 74 metastatic clear cell RCC cases uniformly treated with these drugs. Twenty-nine miRNAs were differentially expressed in the tumors of patients who progressed under TKI therapy (P values from 6 × 10-9 to 3 × 10-3). Among 6 miRNAs selected for validation in an independent series, the most relevant associations corresponded to miR-1307-3p, miR-155-5p, and miR-221-3p (P = 4.6 × 10-3, 6.5 × 10-3, and 3.4 × 10-2, respectively). Furthermore, a 2 miRNA-based classifier discriminated individuals with progressive disease upon TKI treatment (AUC = 0.75, 95% CI, 0.64-0.85; P = 1.3 × 10-4) with better predictive value than clinicopathological risk factors commonly used. We also identified miRNAs significantly associated with progression-free survival and overall survival (P = 6.8 × 10-8 and 7.8 × 10-7 for top hits, respectively), and 7 overlapped with early progressive disease. In conclusion, this is the first miRNome comprehensive study, to our knowledge, that demonstrates a predictive value of miRNAs for TKI response and provides a new set of relevant markers that can help rationalize metastatic RCC treatment.
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Affiliation(s)
- Jesús García-Donas
- Oncology Unit, HM Hospitales - Centro Integral Oncológico HM Clara Campal, Madrid, Spain.,Spanish Oncology Genitourinary Group, Madrid, Spain
| | - Benoit Beuselinck
- Department of General Medical Oncology, University Hospitals Leuven, and.,Laboratory for Experimental Oncology, KU Leuven, Leuven, Belgium
| | - Lucía Inglada-Pérez
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
| | - Osvaldo Graña
- Bioinformatics Unit, Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Patrick Schöffski
- Department of General Medical Oncology, University Hospitals Leuven, and.,Laboratory for Experimental Oncology, KU Leuven, Leuven, Belgium
| | | | - Oliver Bechter
- Department of General Medical Oncology, University Hospitals Leuven, and.,Laboratory for Experimental Oncology, KU Leuven, Leuven, Belgium
| | - Maria Apellániz-Ruiz
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Luis Javier Leandro-García
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Emilio Esteban
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Daniel E Castellano
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Aranzazu González Del Alba
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - Miguel Angel Climent
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Fundación Instituto Valenciano de Oncología, Valencia, Spain
| | - Susana Hernando
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital Universitario Fundación Alcorcón, Madrid, Spain
| | - José Angel Arranz
- Spanish Oncology Genitourinary Group, Madrid, Spain.,Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Manuel Morente
- Tumour Bank Unit, Spanish National Cancer Research Centre, Madrid, Spain
| | - David G Pisano
- Bioinformatics Unit, Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre, Madrid, Spain
| | - Mercedes Robledo
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
| | - Cristina Rodriguez-Antona
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
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145
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microRNA expression profile in human coronary smooth muscle cell-derived microparticles is a source of biomarkers. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2016; 28:167-77. [DOI: 10.1016/j.arteri.2016.05.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 05/05/2016] [Indexed: 12/11/2022]
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146
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Navickas R, Gal D, Laucevičius A, Taparauskaitė A, Zdanytė M, Holvoet P. Identifying circulating microRNAs as biomarkers of cardiovascular disease: a systematic review. Cardiovasc Res 2016; 111:322-37. [PMID: 27357636 PMCID: PMC4996262 DOI: 10.1093/cvr/cvw174] [Citation(s) in RCA: 248] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/19/2016] [Indexed: 12/31/2022] Open
Abstract
The aim of the present study is to identify microRNAs (miRs) with high potential to be used as biomarkers in plasma and/or serum to clinically diagnose, or provide accurate prognosis for survival in, patients with atherosclerosis, coronary artery disease, and acute coronary syndrome (ACS). A systematic search of published original research yielded a total of 72 studies. After review of the risk of bias of the published studies, according to Cochrane Collaboration and the QUADUAS Group standards, 19 studies were selected. Overall 52 different miRs were reported. In particular, miR-133a/b (5 studies), miR-208a/b (6 studies), and miR-499 (7 studies) were well studied and found to be significant diagnostic and/or prognostic markers across different cardiovascular disease progression stages. miR-1 and miR-145b are potential biomarkers of ACS; miR-1 with higher sensitivity for all acute myocardial infarction (AMI), and miR-145 for STEMI and worse outcome of AMI. But when miRs were studied across different ACS study populations, patients had varying degrees of coronary stenosis, which was identified as an important confounder that limited the ability to quantitatively pool the study results. The identified miRs were found to regulate endothelial function and angiogenesis (miR-1, miR-133), vascular smooth muscle cell differentiation (miR-133, miR-145), communication between vascular smooth muscle and endothelial cell to stabilize plaques (miR-145), apoptosis (miR-1, miR-133, miR-499), cardiac myocyte differentiation (miR-1, miR-133, miR-145, miR-208, miR-499), and to repress cardiac hypertrophy (miR-133). Their role in these processes may be explained by regulation of shared RNA targets such as cyclin-dependent kinase inhibitor 1A (or p21), ETS proto-oncogene 1, fascin actin-bundling protein 1, hyperpolarization-activated cyclic nucleotide-gated potassium channel 4, insulin-like growth factor 1 receptor LIM and SH3 protein 1, purine nucleoside phosphorylase, and transgelin 2. These mechanistic data further support the clinical relevance of the identified miRs. miR-1, miR-133a/b, miR-145, miR-208a/b, and miR-499(a) in plasma and/or serum show some potential for diagnosis of cardiovascular disease. However, biased selection of miRs in most studies and unexplained contrasting results are major limitations of current miR research. Inconsistencies need to be addressed in order to definitively identify clinically useful miRs. Therefore, this paper presents important aspects to improve future miR research, including unbiased selection of miRs, standardization/normalization of reference miRs, adjustment for patient comorbidities and medication, and robust protocols of data-sharing plans that could prevent selective publication and selective reporting of miR research outcomes.
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Affiliation(s)
- Rokas Navickas
- Faculty of Medicine, Vilnius University, Vilnius, Lithuania Vilnius University Hospital Santariškių Klinikos, Vilnius, Lithuania
| | - Diane Gal
- Department of Cardiovascular Sciences, Atherosclerosis and Metabolism Unit, KU Leuven, Leuven, Belgium
| | - Aleksandras Laucevičius
- Faculty of Medicine, Vilnius University, Vilnius, Lithuania Vilnius University Hospital Santariškių Klinikos, Vilnius, Lithuania
| | | | | | - Paul Holvoet
- Department of Cardiovascular Sciences, Atherosclerosis and Metabolism Unit, KU Leuven, Leuven, Belgium
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147
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Zhao Y, Li Y, Luo P, Gao Y, Yang J, Lao KH, Wang G, Cockerill G, Hu Y, Xu Q, Li T, Zeng L. XBP1 splicing triggers miR-150 transfer from smooth muscle cells to endothelial cells via extracellular vesicles. Sci Rep 2016; 6:28627. [PMID: 27338006 PMCID: PMC4919660 DOI: 10.1038/srep28627] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/06/2016] [Indexed: 12/23/2022] Open
Abstract
The interaction between endothelial cells (ECs) and smooth muscle cells (SMCs) plays a critical role in the maintenance of vessel wall homeostasis. The X-box binding protein 1 (XBP1) plays an important role in EC and SMC cellular functions. However, whether XBP1 is involved in EC-SMC interaction remains unclear. In this study, In vivo experiments with hindlimb ischemia models revealed that XBP1 deficiency in SMCs significantly attenuated angiogenesis in ischemic tissues, therefore retarded the foot blood perfusion recovery. In vitro studies indicated that either overexpression of the spliced XBP1 or treatment with platelet derived growth factor-BB up-regulated miR-150 expression and secretion via extracellular vesicles (EVs). The XBP1 splicing-mediated up-regulation of miR-150 might be due to increased stability. The SMC-derived EVs could trigger EC migration, which was abolished by miR-150 knockdown in SMCs, suggesting miR-150 is responsible for SMC-stimulated EC migration. The SMC-derived miR-150-containing EVs or premiR-150 transfection increased vascular endothelial growth factor (VEGF)-A mRNA and secretion in ECs. Both inhibitors SU5416 and LY294002 attenuated EVs-induced EC migration. This study demonstrates that XBP1 splicing in SMCs can control EC migration via SMC derived EVs-mediated miR-150 transfer and miR-150-driven VEGF-A/VEGFR/PI3K/Akt pathway activation, thereby modulating the maintenance of vessel wall homeostasis.
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Affiliation(s)
- Yue Zhao
- Department of Heart Centre, Tianjin Third Central Hospital, Tianjin 300170, China
- Cardiovascular Division, King’s College London BHF centre, London SE5 9NU, United Kingdom
| | - Yi Li
- Cardiovascular Division, King’s College London BHF centre, London SE5 9NU, United Kingdom
| | - Peiyi Luo
- Cardiovascular Division, King’s College London BHF centre, London SE5 9NU, United Kingdom
| | - Yingtang Gao
- Key Laboratory of Artificial Cell, Tianjin Third Central Hospital, Tianjin 300170, China
| | - Junyao Yang
- Cardiovascular Division, King’s College London BHF centre, London SE5 9NU, United Kingdom
| | - Ka-Hou Lao
- Cardiovascular Division, King’s College London BHF centre, London SE5 9NU, United Kingdom
| | - Gang Wang
- Department of Emergency Medicine, the Second Affiliated Hospital, School of Medicine, Xi’an Jiaotong University, Xi’an 710004, China
| | | | - Yanhua Hu
- Cardiovascular Division, King’s College London BHF centre, London SE5 9NU, United Kingdom
| | - Qingbo Xu
- Cardiovascular Division, King’s College London BHF centre, London SE5 9NU, United Kingdom
| | - Tong Li
- Department of Heart Centre, Tianjin Third Central Hospital, Tianjin 300170, China
- Key Laboratory of Artificial Cell, Tianjin Third Central Hospital, Tianjin 300170, China
| | - Lingfang Zeng
- Cardiovascular Division, King’s College London BHF centre, London SE5 9NU, United Kingdom
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148
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Williams R. Circulation Research “In This Issue” Anthology. Circ Res 2016. [DOI: 10.1161/res.0000000000000108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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149
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Role of long non-coding RNA-RNCR3 in atherosclerosis-related vascular dysfunction. Cell Death Dis 2016; 7:e2248. [PMID: 27253412 PMCID: PMC5143375 DOI: 10.1038/cddis.2016.145] [Citation(s) in RCA: 175] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 04/07/2016] [Accepted: 04/27/2016] [Indexed: 12/16/2022]
Abstract
Atherosclerosis is one of the most common vascular disorders. Endothelial cell (EC) dysfunction and vascular smooth muscle cell (VSMC) proliferation contributes to the development of atherosclerosis. Long non-coding RNAs (lncRNAs) have been implicated in several biological processes and human diseases. Here we show that lncRNA-RNCR3 is expressed in ECs and VSMCs. RNCR3 expression is significantly upregulated in mouse and human aortic atherosclerotic lesions, and cultured ECs and VSMCs upon ox-LDL treatment in vitro. RNCR3 knockdown accelerates the development of atherosclerosis, aggravates hypercholesterolemia and inflammatory factor releases, and decreases EC and VSMC proliferation in vivo. RNCR3 knockdown also reduces the proliferation and migration, and accelerates apoptosis development of EC and VSMC in vitro. RNCR3 acts as a ceRNA, and forms a feedback loop with Kruppel-like factor 2 and miR-185-5p to regulate cell function. This study reveals that RNCR3 has an atheroprotective role in atherosclerosis, and its intervention is a promising strategy for treating atherosclerosis-related vascular dysfunction.
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150
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Coll-Bonfill N, de la Cruz-Thea B, Pisano MV, Musri MM. Noncoding RNAs in smooth muscle cell homeostasis: implications in phenotypic switch and vascular disorders. Pflugers Arch 2016; 468:1071-87. [PMID: 27109570 DOI: 10.1007/s00424-016-1821-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 04/04/2016] [Indexed: 12/16/2022]
Abstract
Vascular smooth muscle cells (SMC) are a highly specialized cell type that exhibit extraordinary plasticity in adult animals in response to a number of environmental cues. Upon vascular injury, SMC undergo phenotypic switch from a contractile-differentiated to a proliferative/migratory-dedifferentiated phenotype. This process plays a major role in vascular lesion formation and during the development of vascular remodeling. Vascular remodeling comprises the accumulation of dedifferentiated SMC in the intima of arteries and is central to a number of vascular diseases such as arteriosclerosis, chronic obstructive pulmonary disease or pulmonary hypertension. Therefore, it is critical to understand the molecular mechanisms that govern SMC phenotype. In the last decade, a number of new classes of noncoding RNAs have been described. These molecules have emerged as key factors controlling tissue homeostasis during physiological and pathological conditions. In this review, we will discuss the role of noncoding RNAs, including microRNAs and long noncoding RNAs, in the regulation of SMC plasticity.
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Affiliation(s)
- N Coll-Bonfill
- Department of Pulmonary Medicine Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - B de la Cruz-Thea
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, INIMEC-CONICET, Universidad Nacional de Córdoba, Friuli 2434, 5016, Córdoba, Argentina
| | - M V Pisano
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, INIMEC-CONICET, Universidad Nacional de Córdoba, Friuli 2434, 5016, Córdoba, Argentina
| | - M M Musri
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, INIMEC-CONICET, Universidad Nacional de Córdoba, Friuli 2434, 5016, Córdoba, Argentina.
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