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Efovi D, Xiao Q. Noncoding RNAs in Vascular Cell Biology and Restenosis. BIOLOGY 2022; 12:24. [PMID: 36671717 PMCID: PMC9855655 DOI: 10.3390/biology12010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022]
Abstract
In-stent restenosis (ISR), characterised by ≥50% re-narrowing of the target vessel, is a common complication following stent implantation and remains a significant challenge to the long-term success of angioplasty procedures. Considering the global burden of cardiovascular diseases, improving angioplasty patient outcomes remains a key priority. Noncoding RNAs (ncRNAs) including microRNA (miRNA), long noncoding RNA (lncRNA) and circular RNA (circRNA) have been extensively implicated in vascular cell biology and ISR through multiple, both distinct and overlapping, mechanisms. Vascular smooth muscle cells, endothelial cells and macrophages constitute the main cell types involved in the multifactorial pathophysiology of ISR. The identification of critical regulators exemplified by ncRNAs in all these cell types and processes makes them an exciting therapeutic target in the field of restenosis. In this review, we will comprehensively explore the potential functions and underlying molecular mechanisms of ncRNAs in vascular cell biology in the context of restenosis, with an in-depth focus on vascular cell dysfunction during restenosis development and progression. We will also discuss the diagnostic biomarker and therapeutic target potential of ncRNAs in ISR. Finally, we will discuss the current shortcomings, challenges, and perspectives toward the clinical application of ncRNAs.
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Affiliation(s)
- Denis Efovi
- William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Qingzhong Xiao
- William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
- Key Laboratory of Cardiovascular Diseases, School of Basic Medical Sciences, Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
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2
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Zheng L, Zhang X, Liu L, Pu Y. Altered Expression of Specific MicroRNAs in Plasma of Aneurysmal Subarachnoid Hemorrhage Patients. Front Neurol 2022; 13:842888. [PMID: 35242102 PMCID: PMC8886220 DOI: 10.3389/fneur.2022.842888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 01/24/2022] [Indexed: 11/18/2022] Open
Abstract
Background Aneurysmal subarachnoid hemorrhage (aSAH) is a life-threatening condition with high disability and mortality. MicroRNAs (miRNAs) are reported to play a modulating role in aSAH. We investigated specific plasma microRNAs (miRNAs) associated with aSAH and gained comprehensive insight into its pathological mechanisms. Methods This is a prospective case–control study. We used a two-stage approach, with primary screening and ensuing two-step validation stages. Significantly differentially expressed plasma miRNAs between aSAH patients and neurologically healthy controls were initially screened by microarray analysis. These miRNAs were then validated in two groups of independent cohorts using reverse transcription quantitative real-time polymerase chain reaction assays. Functional annotation of these miRNA targets was performed by Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses. Results In the primary screening stage, 14 miRNAs were identified as differentially expressed at a significance level of P < 0.05 and fold change >2 between 5 aSAH patients and 5 neurologically healthy controls. In the two validation steps (20 patients vs. 20 control; 40 patients vs. 30 controls), miR-23b-3p, miR-590-5p, miR-20b-5p, miR-142-3p, and miR-29b-3p were found to be significantly down-regulated in patients with aSAH compared with controls. Through these 5 miRNAs, we obtained 32 overlapping target genes, including TGM2, EREG, EDN1, and COL4A1, in three databases that may affect the progression of aSAH. The results of functional annotation revealed mechanisms mainly related to inflammation, smooth muscle cell proliferation and cell adhesion, potentially contributing to the occurrence of aSAH. Conclusion We demonstrate that specific miRNAs in plasma, including miR-23b-3p, miR-590-5p, miR-20b-5p, miR-142-3p, and miR-29b-3p, are significantly down-regulated in aSAH patients and may play a modulating role in its progression.
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Affiliation(s)
- Lina Zheng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xin Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Liping Liu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yuehua Pu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Overexpression of DOCK6 in oral squamous cell cancer promotes cellular migration and invasion and is associated with poor prognosis. Arch Oral Biol 2021; 133:105297. [PMID: 34742001 DOI: 10.1016/j.archoralbio.2021.105297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/09/2021] [Accepted: 10/21/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVE We aimed to identify the role of DOCK6 in oral squamous cell cancer (OSCC) in this study. DESIGN DOCK6 expression in OSCC was analyzed using TCGA and GEO datasets and was verified by quantitative real-time PCR, Western blotting, and immunohistochemistry. Statistical analyses were performed to evaluate the relationships between DOCK6 expression and the clinicopathological characteristics of OSCC patients. Wound healing and Transwell assays were performed to assess OSCC cell migration and invasion, respectively. STRING and GO analyses and gene set enrichment analysis were used to identify DOCK6-interacting proteins, their functions and their potential pathways. RESULTS DOCK6 was significantly upregulated at both the mRNA and protein levels in OSCC tissues (all P < 0.05). DOCK6 levels were positively correlated with age (P < 0.05), lymph node metastasis status (P < 0.001), clinical stage (P < 0.001), differentiation (P < 0.05), and poor clinical outcome (P < 0.05) in OSCC patients. Furthermore, univariate and multivariate analyses revealed that high DOCK6 expression (P < 0.01) and clinical stage III-IV (P < 0.05) might serve as independent prognostic factors for OSCC patients. Functionally, DOCK6 silencing significantly suppressed OSCC cell migration and invasion (all P < 0.05). Ten proteins that interact with DOCK6, more than ten functions related to cancer, and more than six pathways related to DOCK6 in OSCC were identified via bioinformatic methods. CONCLUSION DOCK6 is upregulated in OSCC, is associated with a poor prognosis in OSCC patients and increases OSCC cells migration and invasion. These findings suggest that DOCK6 may be a potential therapeutic target with prognostic implication in patients with OSCC.
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Róka B, Tod P, Kaucsár T, Bukosza ÉN, Vörös I, Varga ZV, Petrovich B, Ágg B, Ferdinandy P, Szénási G, Hamar P. Delayed Contralateral Nephrectomy Halted Post-Ischemic Renal Fibrosis Progression and Inhibited the Ischemia-Induced Fibromir Upregulation in Mice. Biomedicines 2021; 9:biomedicines9070815. [PMID: 34356879 PMCID: PMC8301422 DOI: 10.3390/biomedicines9070815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 07/06/2021] [Accepted: 07/08/2021] [Indexed: 12/12/2022] Open
Abstract
(1) Background: Ischemia reperfusion (IR) is the leading cause of acute kidney injury (AKI) and results in predisposition to chronic kidney disease. We demonstrated that delayed contralateral nephrectomy (Nx) greatly improved the function of the IR-injured kidney and decelerated fibrosis progression. Our aim was to identify microRNAs (miRNA/miR) involved in this process. (2) Methods: NMRI mice were subjected to 30 min of renal IR and one week later to Nx/sham surgery. The experiments were conducted for 7-28 days after IR. On day 8, multiplex renal miRNA profiling was performed. Expression of nine miRNAs was determined with qPCR at all time points. Based on the target prediction, plexin-A2 and Cd2AP were measured by Western blot. (3) Results: On day 8 after IR, the expression of 20/1195 miRNAs doubled, and 9/13 selected miRNAs were upregulated at all time points. Nx reduced the expression of several ischemia-induced pro-fibrotic miRNAs (fibromirs), such as miR-142a-duplex, miR-146a-5p, miR-199a-duplex, miR-214-3p and miR-223-3p, in the injured kidneys at various time points. Plexin-A2 was upregulated by IR on day 10, while Cd2AP was unchanged. (4) Conclusion: Nx delayed fibrosis progression and decreased the expression of ischemia-induced fibromirs. The protein expression of plexin-A2 and Cd2AP is mainly regulated by factors other than miRNAs.
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Affiliation(s)
- Beáta Róka
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (É.N.B.); (G.S.)
| | - Pál Tod
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (É.N.B.); (G.S.)
- Institute for Translational Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Tamás Kaucsár
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (É.N.B.); (G.S.)
| | - Éva Nóra Bukosza
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (É.N.B.); (G.S.)
| | - Imre Vörös
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (I.V.); (Z.V.V.); (B.P.); (B.Á.); (P.F.)
- HCEMM-SU Cardiometabolic Immunology Research Group, Semmelweis University, 1089 Budapest, Hungary
| | - Zoltán V. Varga
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (I.V.); (Z.V.V.); (B.P.); (B.Á.); (P.F.)
- HCEMM-SU Cardiometabolic Immunology Research Group, Semmelweis University, 1089 Budapest, Hungary
| | - Balázs Petrovich
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (I.V.); (Z.V.V.); (B.P.); (B.Á.); (P.F.)
| | - Bence Ágg
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (I.V.); (Z.V.V.); (B.P.); (B.Á.); (P.F.)
- Pharmahungary Group, 6722 Szeged, Hungary
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary; (I.V.); (Z.V.V.); (B.P.); (B.Á.); (P.F.)
- Pharmahungary Group, 6722 Szeged, Hungary
| | - Gábor Szénási
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (É.N.B.); (G.S.)
| | - Péter Hamar
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (É.N.B.); (G.S.)
- Institute for Translational Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary
- Correspondence: ; Tel.: +36-20-825-9751
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Benson CE, Southgate L. The DOCK protein family in vascular development and disease. Angiogenesis 2021; 24:417-433. [PMID: 33548004 PMCID: PMC8292242 DOI: 10.1007/s10456-021-09768-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 01/06/2021] [Accepted: 01/16/2021] [Indexed: 02/07/2023]
Abstract
The vascular network is established and maintained through the processes of vasculogenesis and angiogenesis, which are tightly regulated during embryonic and postnatal life. The formation of a functional vasculature requires critical cellular mechanisms, such as cell migration, proliferation and adhesion, which are dependent on the activity of small Rho GTPases, controlled in part by the dedicator of cytokinesis (DOCK) protein family. Whilst the majority of DOCK proteins are associated with neuronal development, a growing body of evidence has indicated that members of the DOCK family may have key functions in the control of vasculogenic and angiogenic processes. This is supported by the involvement of several angiogenic signalling pathways, including chemokine receptor type 4 (CXCR4), vascular endothelial growth factor (VEGF) and phosphatidylinositol 3-kinase (PI3K), in the regulation of specific DOCK proteins. This review summarises recent progress in understanding the respective roles of DOCK family proteins during vascular development. We focus on existing in vivo and in vitro models and known human disease phenotypes and highlight potential mechanisms of DOCK protein dysfunction in the pathogenesis of vascular disease.
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Affiliation(s)
- Clare E Benson
- Genetics Research Centre, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London, SW17 0RE, UK
| | - Laura Southgate
- Genetics Research Centre, Molecular and Clinical Sciences Research Institute, St. George's University of London, Cranmer Terrace, London, SW17 0RE, UK. .,Department of Medical & Molecular Genetics, Faculty of Life Sciences & Medicine, King's College London, London, SE1 9RT, UK.
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Differential expression profile of microRNA in yak skeletal muscle and adipose tissue during development. Genes Genomics 2020; 42:1347-1359. [PMID: 32996042 DOI: 10.1007/s13258-020-00988-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/13/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND miRNAs play an important role in regulating normal animal development. Muscle tissue and fat metabolism are important for maintaining energy balance in animals. Yak has important agricultural and economic importance as it provides milk, meat, and hair. It is used for transportation as well. However, the miRNA expression profiles of their muscle and adipose tissue are currently unknown. OBJECTIVE To explore the regulatory roles of miRNAs in the skeletal muscle and adipose tissues of yak. METHODS A total of 12 small RNA libraries were constructed from the skeletal muscle and adipose samples from yak aged 0.5, 2.5, 4.5, and 7.5 years. High-throughput sequencing and bioinformatics analysis were used to determine the dynamic expression profile of miRNA, and a miRNA regulatory network related to muscle and adipose tissue development was established. RESULTS miR-1-3p and miR-143-3p showed the highest expression during yak skeletal muscle and fat development, respectively. The MAPK and Ras signaling pathways were the pivotal pathways. miR-181-5p, miR-542-3p, and miR-424-5p may have key roles in skeletal muscle development, and CREBRF, GRB10, CDK1, RFX3, and EPC2 were the core target genes. While miR-127-5p, miR-379-3p, and miR-494-3p may play important regulatory roles in adipose deposition, and ETV1, XPO7, and C5AR2 were the core target genes. CONCLUSION This study provides valuable resources for further study of the molecular mechanisms underlying yak skeletal muscle and adipose tissue development, and also a basis for studying the interactions between genes and miRNAs.
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Li Y, Xiang Y, Song Y, Wan L, Yu G, Tan L. Dysregulated miR-142, -33b and -423 in granulosa cells target TGFBR1 and SMAD7: a possible role in polycystic ovary syndrome. Mol Hum Reprod 2020; 25:638-646. [PMID: 30865275 DOI: 10.1093/molehr/gaz014] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 01/10/2019] [Accepted: 03/03/2019] [Indexed: 12/15/2022] Open
Abstract
It is well established that microRNA (miRNA) expression profiles are altered in patients with polycystic ovary syndrome (PCOS). In addition, abnormal transforming growth factor beta (TGFB) signaling in granulosa cells is related to the pathological conditions of PCOS. However, the function of dysregulated miRNAs in PCOS is still unclear. In this study, we aimed to elucidate the roles of specific miRNAs in PCOS. We collected follicular fluid from 46 patients with PCOS and 32 healthy controls. Granulosa cells (GCs) were separated and the levels of six candidate miRNAs were determined by quantitative RT-PCR. The direct targets of three dysregulated miRNAs were predicted using bioinformatic tools and confirmed using a dual luciferase assay and immunoblotting. The biological function of three dysregulated miRNAs in primary GCs was determined using a cell proliferation assay and flow cytometry. We found that miR-423 expression was downregulated (P = 0.038), and the levels of miR-33b (P = 0.032) and miR-142 (P = 0.021) were upregulated in GCs from patients with PCOS, compared to controls. miR-423 directly repressed SMAD family member 7 (SMAD7) expression, while transforming growth factor beta receptor 1 (TGFBR1) was a direct target of both miR-33b and miR-142. An RNA oligonucleotide mixture containing miR-423 inhibitor, miR-33b mimic, and miR-142 mimic repressed TGFB signaling, promoted cell proliferation (P = 0.0098), repressed apoptosis (P = 0.027), and increased S phase cell numbers (P = 0.0036) in primary cultures of GCs, compared to the cells treated with a sequence scrambled control RNA oligonucleotide. This study unveiled the possible roles of three miRNAs in PCOS and might provide candidate biomarkers for PCOS diagnosis while in vivo functional studies, using transgenic or knockout mouse models, are expected to confirm the roles of dysregulated miRNAs in the pathogenesis of PCOS.
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Affiliation(s)
- Yan Li
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yungai Xiang
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yuxia Song
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lijing Wan
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Guo Yu
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Li Tan
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Dong X, Wu D, Zhang Y, Jia L, Pan X, Sun J, Pan LL. Cathelicidin Modulates Vascular Smooth Muscle Cell Phenotypic Switching through ROS/IL-6 Pathway. Antioxidants (Basel) 2020; 9:antiox9060491. [PMID: 32516877 PMCID: PMC7346167 DOI: 10.3390/antiox9060491] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/16/2020] [Accepted: 06/01/2020] [Indexed: 12/14/2022] Open
Abstract
Vascular smooth muscle cells (VSMC) are stromal cells of the blood vessels and their differentiation is thought to be essential during atherosclerosis. Cathelicidin-related antimicrobial peptides (CRAMP) are suggested to play a role in the development of atherosclerosis. Even so, the relationship of CRAMP and VSMC remains unclear. The present study was to determine whether CRAMP regulates VSMC phenotypic transformation and underlying mechanisms. We demonstrated that CRAMP could reverse platelet-derived growth factor-BB (PDGF-BB)-induced VSMC phenotypic transformation, evidencing by increasing α-smooth muscle actin (α-SMA), smooth muscle 22α (SM22α) and decreasing of proliferation and migration. Further studies showed that CRAMP inhibited nuclear factor κB (NF-κB)-induced autocrine of interleukin-6 (IL-6), which further activated of janus kinase 2 (JAK2)/signal transducer and activator 3 (STAT3). Meanwhile, our data showed that CRAMP can significantly inhibit PDGF-BB enhanced intracellular reactive oxygen species (ROS) level which further affected the NF-κB signaling pathway, indicating that CRAMP can regulate the phenotypic transformation of VSMC by regulating oxidative stress. These results indicated that CRAMP regulated the differentiation of VSMC by inhibiting ROS-mediated IL-6 autocrine, suggesting that targeting CRAMP is a potential avenue for regulating the differentiation of VSMC and treatment of atherosclerosis.
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Affiliation(s)
- Xiaoliang Dong
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, Jiangsu, China; (X.D.); (D.W.); (L.J.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China; (Y.Z.); (X.P.)
| | - Di Wu
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, Jiangsu, China; (X.D.); (D.W.); (L.J.)
| | - Yihan Zhang
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China; (Y.Z.); (X.P.)
| | - Lingling Jia
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, Jiangsu, China; (X.D.); (D.W.); (L.J.)
| | - Xiaohua Pan
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China; (Y.Z.); (X.P.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Jia Sun
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China; (Y.Z.); (X.P.)
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
- Correspondence: (J.S.); (L.-L.P.); Tel.: +86-510-85197370 (J.S.); +86-510-85328363 (L.-L.P.)
| | - Li-Long Pan
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, Jiangsu, China; (X.D.); (D.W.); (L.J.)
- Correspondence: (J.S.); (L.-L.P.); Tel.: +86-510-85197370 (J.S.); +86-510-85328363 (L.-L.P.)
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Farina FM, Hall IF, Serio S, Zani S, Climent M, Salvarani N, Carullo P, Civilini E, Condorelli G, Elia L, Quintavalle M. miR-128-3p Is a Novel Regulator of Vascular Smooth Muscle Cell Phenotypic Switch and Vascular Diseases. Circ Res 2020; 126:e120-e135. [PMID: 32216529 DOI: 10.1161/circresaha.120.316489] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
RATIONALE MicroRNAs (miRNAs, miRs) are small noncoding RNAs that modulate gene expression by negatively regulating translation of target genes. Although the role of several miRNAs in vascular smooth muscle cells (VSMCs) has been extensively characterized, the function of miRNA-128-3p (miR-128) is still unknown. OBJECTIVE To determine if miR-128 modulates VSMC phenotype and to define the underlying mechanisms. METHODS AND RESULTS We screened for miRNAs whose expression is modulated by an altered DNA methylation status in VSMCs, and among the hits, we selected miR-128. We found that miR-128 was expressed in various tissues, primary murine cells, and pathological murine and human vascular specimens. Through gain- and loss-of-function approaches, we determined that miR-128 affects VSMC proliferation, migration, differentiation, and contractility. The alterations of those properties were dependent upon epigenetic regulation of key VSMC differentiation genes; notably, Kruppel-like factor 4 was found to be a direct target of miR-128 and able to modulate the methylation status of the pivotal VSMC gene myosin heavy chain 11 (Myh11). Finally, in vivo lentiviral delivery of miR-128 prevented intimal hyperplasia in a mouse model of carotid restenosis without modifying vital cardiovascular parameters. CONCLUSION miR-128 is a critical modulator of VSMCs and is regulated by epigenetic modifications upon stress. Its modulation in the context of disease could be exploited for therapeutic purposes.
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Affiliation(s)
- Floriana Maria Farina
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Department of Medical Biotechnology and Translational Medicine, University of Milan, Italy (F.M.F.)
| | - Ignacio Fernando Hall
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | | | - Stefania Zani
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | - Montserrat Climent
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
| | - Nicolò Salvarani
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
| | - Pierluigi Carullo
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.)
| | - Efrem Civilini
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.)
| | - Gianluigi Condorelli
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Humanitas University, Rozzano, Milan, Italy (I.F.H., S.Z., E.C., G.C.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.)
| | - Leonardo Elia
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.).,Institute of Genetics and Biomedical Research, National Research Council, Rozzano, Milan, Italy (P.C., G.C., L.E.).,Department of Molecular and Translational Medicine, University of Brescia, Italy (L.E.)
| | - Manuela Quintavalle
- From the Humanitas Research Hospital, Rozzano, Milan, Italy (F.M.F., I.F.H., S.Z., M.C., N.S., P.C., E.C., G.C., L.E., M.Q.)
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Zhou DM, Ran F, Ni HZ, Sun LL, Xiao L, Li XQ, Li WD. Metformin inhibits high glucose-induced smooth muscle cell proliferation and migration. Aging (Albany NY) 2020; 12:5352-5361. [PMID: 32208365 PMCID: PMC7138554 DOI: 10.18632/aging.102955] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 02/20/2020] [Indexed: 12/17/2022]
Abstract
We investigated the protective effects and mechanism of action of metformin on high glucose-induced smooth muscle cell proliferation and migration. Vascular smooth muscle cells (VSMCs) were subjected to a series of concentrations (0-10 mM) of metformin. CCK-8, wound healing, and transwell assays were performed. Correlations between metformin concentration and high-mobility group box 1 (HMGB1) and miR-142-3p levels were assessed. In addition, miR-142-3p mimic and siRNA were used to investigate VSMC migration in the presence or absence of metformin. In the high-glucose condition, metformin decreased cell growth and inhibited cell migration. HMGB1 gene expression correlated negatively with metformin concentration, whereas miR-142-3p expression correlated positively with metformin concentration. In addition, mimic-induced miR-142-3p elevation resulted in decreased HMGB1 and LC3II levels and elevated p62 levels in the high-glucose condition, whereas miR-142-3p knockdown had the reverse effects, and metformin abolished those effects. Metformin inhibits high glucose–induced VSMC hyperproliferation and increased migration by inducing miR-142-3p-mediated inhibition of HMGB1 expression via the HMGB1-autophagy related pathway.
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Affiliation(s)
- Dong-Ming Zhou
- Department of Hematology, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China
| | - Feng Ran
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China
| | - Hai-Zhen Ni
- Department of Vascular Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu, China.,Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Li-Li Sun
- Department of Vascular Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu, China
| | - Lun Xiao
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China
| | - Xiao-Qiang Li
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China
| | - Wen-Dong Li
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China
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11
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Southgate L. Current opinion in the molecular genetics of Adams-Oliver syndrome. Expert Opin Orphan Drugs 2018. [DOI: 10.1080/21678707.2019.1559049] [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: 10/27/2022]
Affiliation(s)
- Laura Southgate
- Molecular and Clinical Sciences Research Institute, St George’s University of London, London, UK
- Department of Medical and Molecular Genetics, King’s College London, London, UK
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12
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Kétszeri M, Kirsch A, Frauscher B, Moschovaki-Filippidou F, Mooslechner AA, Kirsch AH, Schabhuettl C, Aringer I, Artinger K, Pregartner G, Ekart R, Breznik S, Hojs R, Goessler W, Schilcher I, Müller H, Obermayer-Pietsch B, Frank S, Rosenkranz AR, Eller P, Eller K. MicroRNA-142-3p improves vascular relaxation in uremia. Atherosclerosis 2018; 280:28-36. [PMID: 30453118 PMCID: PMC6591123 DOI: 10.1016/j.atherosclerosis.2018.11.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/31/2018] [Accepted: 11/09/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Chronic kidney disease (CKD) is strongly associated with a high burden of cardiovascular morbidity and mortality. Therefore, we aimed to characterize the putative role of microRNAs (miR)s in uremic vascular remodelling and endothelial dysfunction. METHODS We investigated the expression pattern of miRs in two independent end-stage renal disease (ESRD) cohorts and in the animal model of uremic DBA/2 mice via quantitative RT-PCR. Moreover, DBA/2 mice were treated with intravenous injections of synthetic miR-142-3p mimic and were analysed for functional and morphological vascular changes by mass spectrometry and wire myography. RESULTS The expression pattern of miRs was regulated in ESRD patients and was reversible after kidney transplantation. Out of tested miRs, only blood miR-142-3p was negatively associated with carotid-femoral pulse-wave velocity in CKD 5D patients. We validated these findings in a murine uremic model and found similar suppression of miR-142-3p as well as decreased acetylcholine-mediated vascular relaxation of the aorta. Therefore, we designed experiments to restore bioavailability of aortic miR-142-3p in vivo via intravenous injection of synthetic miR-142-3p mimic. This intervention restored acetylcholine-mediated vascular relaxation. CONCLUSIONS Taken together, we provide compelling evidence, both in humans and in mice, that miR-142-3p constitutes a potential pharmacological agent to prevent endothelial dysfunction and increased arterial stiffness in ESRD.
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Affiliation(s)
- Máté Kétszeri
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
| | - Andrijana Kirsch
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Molecular Biology and Biochemistry, Medical University Graz, Graz, Austria; Department of Phoniatrics, ENT University Hospital Graz, Medical University of Graz, Austria
| | - Bianca Frauscher
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
| | | | - Agnes A Mooslechner
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
| | - Alexander H Kirsch
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
| | - Corinna Schabhuettl
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
| | - Ida Aringer
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
| | - Katharina Artinger
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
| | - Gudrun Pregartner
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Robert Ekart
- Department of Dialysis, Clinic for Internal Medicine, University Clinical Centre Maribor, Slovenia; Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Silva Breznik
- Department of Radiology, University Clinical Centre Maribor, Slovenia
| | - Radovan Hojs
- Faculty of Medicine, University of Maribor, Maribor, Slovenia; Department of Nephrology, Clinic for Internal Medicine, University Clinical Center Maribor, Slovenia
| | - Walter Goessler
- Institute of Chemistry Analytical Chemistry, Karl-Franzens University Graz, Graz, Austria
| | - Irene Schilcher
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Molecular Biology and Biochemistry, Medical University Graz, Graz, Austria
| | - Helmut Müller
- Department of Surgery, Division of Transplantation Surgery, Medical University of Graz, Graz, Austria
| | - Barbara Obermayer-Pietsch
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, Austria
| | - Saša Frank
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Molecular Biology and Biochemistry, Medical University Graz, Graz, Austria
| | - Alexander R Rosenkranz
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
| | - Philipp Eller
- Department of Internal Medicine, Intensive Care Unit, Medical University of Graz, Austria.
| | - Kathrin Eller
- Department of Internal Medicine, Clinical Division of Nephrology, Medical University of Graz, Graz, Austria
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Mononuclear-cell-derived microparticles attenuate endothelial inflammation by transfer of miR-142-3p in a CD39 dependent manner. Purinergic Signal 2018; 14:423-432. [PMID: 30244433 DOI: 10.1007/s11302-018-9624-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/29/2018] [Indexed: 12/22/2022] Open
Abstract
Plasma microparticles (MP) bear functional active ectonucleotidases of the CD39 family with implications in vascular inflammation. MP appear to be able to fuse with cells and transfer genetic information. Here, we tested whether levels of different immunomodulatory microRNAs (miRs) in plasma MP are modulated by CD39 after experimental hepatectomy. We further investigated whether horizontal transfer of miR-142-3p between mononuclear (MNC) and endothelial cells via MP is regulated by purinergic signaling. Partial hepatectomy was performed in C57BL/6 wild type and Cd39 null mice. MP were collected via ultracentrifugation. MNC were stimulated with nucleotides and nucleosides, in vitro, and tested for miR-142-3p levels. Fusion of MNC-derived MP and endothelial cells with subsequent transfer of miR-142-3p was imaged by flow cytometry and confocal microscopy. Endothelial inflammation and apoptosis were quantified after transfection with miR-142-3p. Significantly lower miR-142-3p levels were observed in plasma MP of Cd39 null mice after partial hepatectomy, when compared to C57BL/6 wild types (p < 0.05). In contrast to extracellular nucleotides, anti-inflammatory adenosine significantly increased miR-142-3p levels in MNC-derived MP, in vitro (p < 0.05). MNC-derived MP are able to transfer miR-142-3p to endothelial cells by fusion. Transfection of endothelial cells with miR-142-3p decreased TNF-α levels (p < 0.05) and endothelial apoptosis (p < 0.05). MiR-142-3p levels in MNC-derived MP are modulated by nucleoside signaling and might reflect compensatory responses in vascular inflammation. Our data suggest the transfer of genetic information via shed MP as a putative mechanism of intercellular communication-with implications in organ regeneration.
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14
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Li X, Jiang M, Chen D, Xu B, Wang R, Chu Y, Wang W, Zhou L, Lei Z, Nie Y, Fan D, Shang Y, Wu K, Liang J. miR-148b-3p inhibits gastric cancer metastasis by inhibiting the Dock6/Rac1/Cdc42 axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:71. [PMID: 29587866 PMCID: PMC5872400 DOI: 10.1186/s13046-018-0729-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/08/2018] [Indexed: 12/19/2022]
Abstract
Background Our previous work showed that some Rho GTPases, including Rho, Rac1 and Cdc42, play critical roles in gastric cancer (GC); however, how they are regulated in GC remains largely unknown. In this study, we aimed to investigate the roles and molecular mechanisms of Dock6, an atypical Rho guanine nucleotide exchange factor (GEF), in GC metastasis. Methods The expression levels of Dock6 and miR-148b-3p in GC tissues and paired nontumor tissues were determined by immunohistochemistry (IHC) and in situ hybridization (ISH), respectively. The correlation between Dock6/miR-148b-3p expression and the overall survival of GC patients was calculated by the Kaplan-Meier method and log-rank test. The roles of Dock6 and miR-148b-3p in GC were investigated by in vitro and in vivo functional studies. Rac1 and Cdc42 activation was investigated by GST pull-down assays. The inhibition of Dock6 transcription by miR-148b-3p was determined by luciferase reporter assays. Results A significant increase in Dock6 expression was found in GC tissues compared with nontumor tissues, and its positive expression was associated with lymph node metastasis and a higher TNM stage. Patients with positive Dock6 expression exhibited shorter overall survival periods than patients with negative Dock6 expression. Dock6 promoted GC migration and invasion by increasing the activation of Rac1 and Cdc42. miR-148b-3p expression was negatively correlated with Dock6 expression in GC, and it decreased the motility of GC cells by inhibiting the Dock6/Rac1/Cdc42 axis. Conclusions Dock6 was over-expressed in GC tissues, and its positive expression was associated with GC metastasis and indicated poor prognosis of GC patients. Targeting of Dock6 by miR-148b-3p could activate Rac1 and Cdc42, directly affecting the motility of GC cells. Targeting the Dock6-Rac1/Cdc42 axis could serve as a new therapeutic strategy for GC treatment. Electronic supplementary material The online version of this article (10.1186/s13046-018-0729-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaowei Li
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Mingzuo Jiang
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Di Chen
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Bing Xu
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China.,Department of Gastroenterology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710004, China
| | - Rui Wang
- National-Local Joint Engineering Research Center of Biodiagnostics & Biotheraphy, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710032, China
| | - Yi Chu
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Weijie Wang
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Lin Zhou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Zhijie Lei
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Daiming Fan
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Yulong Shang
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China.
| | - Kaichun Wu
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China.
| | - Jie Liang
- State Key Laboratory of Cancer Biology & National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi, 710032, China.
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Yang X, Dan X, Men R, Ma L, Wen M, Peng Y, Yang L. MiR-142-3p blocks TGF-β-induced activation of hepatic stellate cells through targeting TGFβRI. Life Sci 2017; 187:22-30. [PMID: 28823564 DOI: 10.1016/j.lfs.2017.08.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/01/2017] [Accepted: 08/16/2017] [Indexed: 12/26/2022]
Abstract
AIM To understand the contribution of miR-142-3p in the activation of hepatic stellate cells (HSCs) and liver fibrosis, and the underlying mechanism. MATERIALS AND METHODS We detected microRNAs expression profiles in quiescent and activated HSCs by microRNA-array, and performed qRT-PCR to validate these data in HSCs and plasma of cirrhosis patients. In vitro, the 3rd-5th passage HSCs was transfected with mir-142-3p mimics or stimulated with TGF β. The markers of HSCs activation (i.e. FN and α-SMA) were examined by qRT-PCR and western blotting, and cell viability was detected by MTT, colony formation assays respectively. KEY FINDING In our study, we identified miR-142-3p as a novel regulator of HSCs activation and indicator of hepatic cirrhosis. We found that miR-142-3p was significantly reduced in activated HSCs, while TGFβRI was distinctly up-regulated in activated HSCs. Ectopic expression of miR-142-3p in activated HSCs inhibited cell viability as well as cell growth, and blocked HSCs activation, concomitant with decreased transdifferentiation markers (i.e. FN and α-SMA). Further, we confirmed that miR-142-3p was reduced upon TGF-β exposure, while diminishing TGF-β-Smad signaling pathway in turn by reducing TGFβRI expression in HSCs. Besides, the plasma level of miR-142-3p declined significantly in patients with hepatic cirrhosis. SIGNIFICANCE In conclusion, we demonstrated that miR-142-3p repressed TGF-β-Smad signaling pathway to prevent HSCs activation through directly targeting TGFβRI in HSCs.
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16
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Ruan C, Lu J, Wang H, Ge Z, Zhang C, Xu M. miR-26b-5p regulates hypoxia-induced phenotypic switching of vascular smooth muscle cells via the TGF-β/Smad4 signaling pathway. Mol Med Rep 2017; 15:4185-4190. [PMID: 28487943 DOI: 10.3892/mmr.2017.6509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 07/14/2016] [Indexed: 11/06/2022] Open
Abstract
Hypoxia contributes to the phenotypic switch of vascular smooth muscle cells (VSMCs). Various microRNAs (miRNAs) participate in this process as post‑transcriptional regulators, however the mechanism remains unclear. In the present study, mouse VSMCs (mVSMCs) harvested from aortas were cultured in normoxic and hypoxic conditions, and the mRNA levels of miR-26b-5p, desmin, H‑caldesmon and smoothelin were quantified using reverse transcription‑quantitative polymerase chain reaction. Following treatment with a miR‑26b‑5p antagonist (agomir) or non‑targeting control (scramble), the cell areas of normoxic and hypoxic mVSMCs were analyzed by immunofluorescence staining. In addition, the protein expression levels of collagen Iα, Smad2/phosphorylated (p)‑Smad2, Smad3/p‑Smad3 and Smad4 were determined by western blotting. Potential miRNA26b‑5p binding sequences in the 3'‑untranslated region (UTR) of Smad4 were investigated, and the distribution of Smad4 in mVSMCs was visualized using immunofluorescence methods. Hypoxic mVSMCs exhibited a significant downregulation miR‑26b‑5p, upregulation of hypoxia inducible factor‑1α mRNA and suppression of desmin, H‑caldesmon and smoothelin mRNA levels. Additionally, miR‑26b‑5p agomir reduced the cell area and decreased collagen Iα expression levels in hypoxic mVSMCs compared with normoxic mVSMCs transfected with agomir, and the area was comparable with those of normoxic mVSMCs transfected with agomir or scramble. Furthermore, miR‑26b‑5p suppressed Smad4 expression in hypoxic mVSMCs, but did not change the expression levels of Smad2 and Smad3, p‑Smad2 and p‑Smad3, however p‑Smad2 and p‑Smad3 levels were upregulated in response to hypoxic stimuli. Additionally, the miR‑26b‑5p agomir caused weak immunoreactivity with Smad4 in hypoxic mVSMCs. The binding motif of miR‑26b‑5p in the Smad4 3'‑UTR was identified as UACUUGA at position 978-984. These findings suggest that miR‑26b‑5p regulates hypoxia‑induced phenotypic switching of VSMCs via the transforming growth factor β/Smad4 signaling pathway.
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Affiliation(s)
- Changwu Ruan
- Department of Cardiology, Gongli Hospital, Shanghai 200135, P.R. China
| | - Jide Lu
- Department of Cardiology, Gongli Hospital, Shanghai 200135, P.R. China
| | - Hairong Wang
- Department of Cardiology, Gongli Hospital, Shanghai 200135, P.R. China
| | - Zhiru Ge
- Department of Cardiology, Gongli Hospital, Shanghai 200135, P.R. China
| | - Chenjun Zhang
- Department of Cardiology, Gongli Hospital, Shanghai 200135, P.R. China
| | - Maochun Xu
- Department of Cardiology, Gongli Hospital, Shanghai 200135, P.R. China
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Dkhil MA, Al-Quraishy SA, Abdel-Baki AAS, Delic D, Wunderlich F. Differential miRNA Expression in the Liver of Balb/c Mice Protected by Vaccination during Crisis of Plasmodium chabaudi Blood-Stage Malaria. Front Microbiol 2017; 7:2155. [PMID: 28123381 PMCID: PMC5225092 DOI: 10.3389/fmicb.2016.02155] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 12/21/2016] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs are increasingly recognized as epigenetic regulators for outcome of diverse infectious diseases and vaccination efficacy, but little information referring to this exists for malaria. This study investigates possible effects of both protective vaccination and P. chabaudi malaria on the miRNome of the liver as an effector against blood-stage malaria using miRNA microarrays and quantitative PCR. Plasmodium chabaudi blood-stage malaria takes a lethal outcome in female Balb/c mice, but a self-healing course after immunization with a non-infectious blood-stage vaccine. The liver robustly expresses 71 miRNA species at varying levels, among which 65 miRNA species respond to malaria evidenced as steadily increasing or decreasing expressions reaching highest or lowest levels toward the end of the crisis phase on day 11 p.i. in lethal malaria. Protective vaccination does not affect constitutive miRNA expression, but leads to significant (p < 0.05) changes in the expression of 41 miRNA species, however evidenced only during crisis. In vaccination-induced self-healing infections, 18 miRNA-species are up- and 14 miRNA-species are down-regulated by more than 50% during crisis in relation to non-vaccinated mice. Vaccination-induced self-healing and survival of otherwise lethal infections of P. chabaudi activate epigenetic miRNA-regulated remodeling processes in the liver manifesting themselves during crisis. Especially, liver regeneration is accelerated as suggested by upregulation of let-7a-5p, let-7b-5p, let-7c-5p, let-7d-5p, let-7f-5p, let-7g-5p, let-7i-5p, miR-26a, miR-122-5p, miR30a, miR27a, and mir-29a, whereas the up-regulated expression of miR-142-3p by more than 100% is compatible with the view of enhanced hepatic erythropoiesis, possibly at expense of megakaryopoiesis, during crisis of P. chabaudi blood-stage malaria.
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Affiliation(s)
- Mohamed A Dkhil
- Department of Zoology, College of Science, King Saud UniversityRiyadh, Saudi Arabia; Department of Zoology and Entomology, Faculty of Science, Helwan UniversityCairo, Egypt
| | - Saleh A Al-Quraishy
- Department of Zoology, College of Science, King Saud University Riyadh, Saudi Arabia
| | - Abdel-Azeem S Abdel-Baki
- Department of Zoology, College of Science, King Saud UniversityRiyadh, Saudi Arabia; Department of Zoology, Faculty of Science, Beni-Suef UniversityBeni-Suef, Egypt
| | - Denis Delic
- Boehringer-Ingelheim Pharma Biberach, Germany
| | - Frank Wunderlich
- Department of Biology, Heinrich-Heine-University Duesseldorf, Germany
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Function, Role, and Clinical Application of MicroRNAs in Vascular Aging. BIOMED RESEARCH INTERNATIONAL 2016; 2016:6021394. [PMID: 28097140 PMCID: PMC5209603 DOI: 10.1155/2016/6021394] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 11/07/2016] [Accepted: 11/23/2016] [Indexed: 01/31/2023]
Abstract
Vascular aging, a specific type of organic aging, is related to age-dependent changes in the vasculature, including atherosclerotic plaques, arterial stiffness, fibrosis, and increased intimal thickening. Vascular aging could influence the threshold, process, and severity of various cardiovascular diseases, thus making it one of the most important risk factors in the high mortality of cardiovascular diseases. As endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) are the main cell biological basis of these pathology changes of the vasculature, the structure and function of ECs and VSMCs play a key role in vascular aging. MicroRNAs (miRNAs), small noncoding RNAs, have been shown to regulate the expression of multiple messenger RNAs (mRNAs) posttranscriptionally, contributing to many crucial aspects of cell biology. Recently, miRNAs with functions associated with aging or aging-related diseases have been studied. In this review, we will summarize the reported role of miRNAs in the process of vascular aging with special emphasis on EC and VSMC functions. In addition, the potential application of miRNAs to clinical practice for the diagnosis and treatment of cardiovascular diseases will also be discussed.
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An overview of potential molecular mechanisms involved in VSMC phenotypic modulation. Histochem Cell Biol 2015; 145:119-30. [DOI: 10.1007/s00418-015-1386-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2015] [Indexed: 12/21/2022]
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Ji Z, Dong F, Wang G, Hou L, Liu Z, Chao T, Wang J. miR-135a Targets and Regulates Prolactin Receptor Gene in Goat Mammary Epithelial Cells. DNA Cell Biol 2015; 34:534-40. [PMID: 26102062 DOI: 10.1089/dna.2015.2904] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Mammary gland development and lactation are typical traits controlled by multiple genes, hormones, and regulatory factors. Prolactin receptor (PRLR), a specific receptor of prolactin, has been reported to have important physiological functions in regulating mammogenesis and lactogenesis. However, the post-transcriptional regulation mechanisms of PRLR expression have not yet been shown in detail. In this study, the expression of miR-135a and PRLR at different development stages of Laoshan dairy goat mammary gland tissues was investigated. After overexpression and silencing expression of miR-135a in cultured primary mammary epithelial cells, the regulatory relationship between miR-135a and PRLR was examined through dual-luciferase reporter assay, and the expression of PRLR at both mRNA and protein levels was examined by real-time quantitative polymerase chain reaction (RT-qPCR) and western blot. Collectively, our results suggested that PRLR is a direct target gene of miR-135a, miR-135a is a novel regulator of PRLR, and it might play an essential role in the regulation of animal mammary gland development and lactation.
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Affiliation(s)
- Zhibin Ji
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Taian, China
| | - Fei Dong
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Taian, China
| | - Guizhi Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Taian, China
| | - Lei Hou
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Taian, China
| | - Zhaohua Liu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Taian, China
| | - Tianle Chao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Taian, China
| | - Jianmin Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University , Taian, China
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