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Razi Soofiyani S, Minaei Beirami S, Hosseini K, Mohammadi Nasr M, Ranjbar M, Forouhandeh H, Tarhriz V, Sadeghi M. Revisiting Inhibition Effects of miR-28 as a Metastasis Suppressor in Gastrointestinal Cancers. Microrna 2023; 12:131-142. [PMID: 37073155 DOI: 10.2174/2211536612666230413125126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 11/09/2022] [Accepted: 01/20/2023] [Indexed: 04/20/2023]
Abstract
MicroRNAs are critical epigenetic regulators that can be used as diagnostic, prognostic, and therapeutic biomarkers for the treatment of various diseases, including gastrointestinal cancers, among a variety of cellular and molecular biomarkers. MiRNAs have also shown oncogenic or tumor suppressor roles in tumor tissue and other cell types. Studies showed that the dysregulation of miR-28 is involved in cell growth and metastasis of gastrointestinal cancers. MiR-28 plays a key role in controlling the physiological processes of cancer cells including growth and proliferation, migration, invasion, apoptosis, and metastasis. Therefore, miR-28 expression patterns can be used to distinguish patient subgroups. Based on the previous studies, miR-28 expression can be a suitable biomarker to detect tumor size and predict histological grade metastasis. In this review, we summarize the inhibitory effects of miR-28 as a metastasis suppressor in gastrointestinal cancers. miR-28 plays a role as a tumor suppressor in gastrointestinal cancers by regulating cancer cell growth, cell differentiation, angiogenesis, and metastasis. As a result, using it as a prognostic, diagnostic, and therapeutic biomarker in the treatment of gastrointestinal cancers can be a way to solve the problems in this field.
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Affiliation(s)
- Saiedeh Razi Soofiyani
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Clinical Research Development Unit, Sina Educational, Research and Treatment Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sohrab Minaei Beirami
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kamran Hosseini
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- Faculty of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mina Mohammadi Nasr
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences. Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Ranjbar
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Haleh Forouhandeh
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahideh Tarhriz
- Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammadreza Sadeghi
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences. Tabriz University of Medical Sciences, Tabriz, Iran
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Djalinac N, Kolesnik E, Maechler H, Scheruebel-Posch S, Pelzmann B, Rainer PP, Foessl I, Wallner M, Scherr D, Heinemann A, Sedej S, Ljubojevic-Holzer S, von Lewinski D, Bisping E. miR-1183 Is a Key Marker of Remodeling upon Stretch and Tachycardia in Human Myocardium. Int J Mol Sci 2022; 23:ijms23136962. [PMID: 35805966 PMCID: PMC9266684 DOI: 10.3390/ijms23136962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022] Open
Abstract
Many cardiac insults causing atrial remodeling are linked to either stretch or tachycardia, but a comparative characterization of their effects on early remodeling events in human myocardium is lacking. Here, we applied isometric stretch or sustained tachycardia at 2.5 Hz in human atrial trabeculae for 6 h followed by microarray gene expression profiling. Among largely independent expression patterns, we found a small common fraction with the microRNA miR-1183 as the highest up-regulated transcript (up to 4-fold). Both, acute stretch and tachycardia induced down-regulation of the predicted miR-1183 target genes ADAM20 and PLA2G7. Furthermore, miR-1183 was also significantly up-regulated in chronically remodeled atrial samples from patients with persistent atrial fibrillation (3-fold up-regulation versus sinus rhythm samples), and in ventricular myocardium from dilative cardiomyopathy hearts (2-fold up-regulation) as compared to non-failing controls. In sum, although stretch and tachycardia show distinct transcriptomic signatures in human atrial myocardium, both cardiac insults consistently regulate the expression of miR-1183 and its downstream targets in acute and chronic remodeling. Thus, elevated expression of miR-1183 might serve as a tissue biomarker for atrial remodeling and might be of potential functional significance in cardiac disease.
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Affiliation(s)
- Natasa Djalinac
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
- Unit of Human Molecular Genetics and Functional Genomics, Department of Biology, University of Padua, 35121 Padua, Italy
| | - Ewald Kolesnik
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
| | - Heinrich Maechler
- Department of Cardiothoracic Surgery, Medical University of Graz, 8036 Graz, Austria;
| | - Susanne Scheruebel-Posch
- Gottfried Schatz Research Center, Institute of Biophysics, Medical University of Graz, 8010 Graz, Austria; (S.S.-P.); (B.P.)
| | - Brigitte Pelzmann
- Gottfried Schatz Research Center, Institute of Biophysics, Medical University of Graz, 8010 Graz, Austria; (S.S.-P.); (B.P.)
| | - Peter P. Rainer
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
- BioTechMed Graz, 8036 Graz, Austria
| | - Ines Foessl
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, 8010 Graz, Austria;
| | - Markus Wallner
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
- Correspondence: (M.W.); (D.v.L.); Tel.: +43-316-385-31261 (M.W.); +43-316-385-80684 (D.v.L.)
| | - Daniel Scherr
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
| | - Akos Heinemann
- Institute of Experimental and Clinical Pharmacology, Medical University of Graz, 8010 Graz, Austria;
| | - Simon Sedej
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
- BioTechMed Graz, 8036 Graz, Austria
- Institute of Physiology, Faculty of Medicine, University of Maribor, 2000 Maribor, Slovenia
| | - Senka Ljubojevic-Holzer
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
- BioTechMed Graz, 8036 Graz, Austria
| | - Dirk von Lewinski
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
- Correspondence: (M.W.); (D.v.L.); Tel.: +43-316-385-31261 (M.W.); +43-316-385-80684 (D.v.L.)
| | - Egbert Bisping
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria; (N.D.); (E.K.); (P.P.R.); (D.S.); (S.S.); (S.L.-H.); (E.B.)
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Exosomes Derived from Mesenchymal Stem Cells Ameliorate the Progression of Atherosclerosis in ApoE -/- Mice via FENDRR. Cardiovasc Toxicol 2022; 22:528-544. [PMID: 35344140 DOI: 10.1007/s12012-022-09736-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/16/2022] [Indexed: 01/12/2023]
Abstract
Exosomes (EXO) are extracellular vesicles with lipid bilayer membrane structure containing noncoding RNA, DNA, and other molecules which mediate biological functions. The importance of EXO derived from mesenchymal stem cells (MSCs) has been underlined in cardiovascular diseases. However, the functional role of long non-coding RNA (lncRNA) released by MSCs-EXO on atherosclerosis (AS) was unknown. We aimed to investigate the effects of lncRNA fetal-lethal non-coding developmental regulatory RNA (FENDRR) released from MSC-derived EXO on AS. The accumulation of oxidized low-density lipoprotein (oxLDL) caused AS in mice and damage to human vascular endothelial cells (HUV-EC-C). MSC-EXO restored HUV-EC-C activity and alleviated arterial injury. LncRNA microarrays revealed that FENDRR was delivered to cells and tissues by MSC-EXO. FENDRR bound to microRNA (miR)-28 to regulate TEA domain transcription factor 1 (TEAD1) expression. Moreover, FENDRR knockdown exacerbated cell injury and arterial injury in mice. miR-28 inhibitor reversed the effects of FENDRR silencing and reduced atherosclerotic plaque formation. While loss of TEAD1 mitigated the effect of miR-28 inhibitor and accentuated HUV-EC-C injury in vitro and AS symptoms in vivo. Our results demonstrated that MSC-EXO secreted FENDRR to treat AS. FENDRR competed with TEAD1 to bind to miR-28, thereby reducing HUV-EC-C injury and atherosclerotic plaque formation.
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Enhancement of myogenic differentiation and inhibition of rhabdomyosarcoma progression by miR-28-3p and miR-193a-5p regulated by SNAIL. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 24:888-904. [PMID: 34094709 PMCID: PMC8141673 DOI: 10.1016/j.omtn.2021.04.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 04/13/2021] [Indexed: 12/15/2022]
Abstract
Rhabdomyosarcoma (RMS) is a soft tissue mesenchymal tumor that affects mostly children and adolescents. It originates from the impaired myogenic differentiation of stem cells or early progenitors. SNAIL, a transcription factor that regulates epithelial-to-mesenchymal transition in tumors of epithelial origin, is also a key regulator of RMS growth, progression, and myogenic differentiation. Here, we demonstrate that the SNAIL-dependent microRNAs (miRNAs) miR-28-3p and miR-193a-5p are crucial regulators of RMS growth, differentiation, and progression. miR-28-3p and miR-193a-5p diminished proliferation and arrested RMS cells in G0/G1 phase in vitro. They induced the myogenic differentiation of both RMS cells and human myoblasts by upregulating myogenic factors. Furthermore, miR-28-3p and miR-193a-5p inhibited migration in a scratch assay, adhesion to endothelial cells, chemotaxis, and invasion toward SDF-1 and HGF and regulated angiogenic capabilities of the cells. Overexpression of miR-28-3p and miR-193a-5p induced formation of fibrotic structures and abnormal blood vessels in RMS xenografts in immunodeficient mice in vivo. Simultaneous overexpression of both miRNAs diminished tumor growth after subcutaneous implantation and inhibited the engraftment of RMS cells into bone marrow after intravenous injection in vivo. To conclude, we discovered novel SNAIL-dependent miRNAs that may become new therapeutic targets in RMS in the future.
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Pan N, Bhatti MZ, Zhang H, Ni B, Fan X, Chen J. The Encystment-Related MicroRNAs and Its Regulation Molecular Mechanism in Pseudourostyla cristata Revealed by High Throughput Small RNA Sequencing. Int J Mol Sci 2020; 21:ijms21072309. [PMID: 32225121 PMCID: PMC7177753 DOI: 10.3390/ijms21072309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 01/09/2023] Open
Abstract
MicroRNAs (miRNAs) regulate the expression of target genes in diverse cellular processes and play important roles in different physiological processes. However, little is known about the microRNAome (miRNAome) during encystment of ciliated protozoa. In the current study, we first investigated the differentially expressed miRNAs and relative signaling pathways participating in the transformation of vegetative cells into dormant cysts of Pseudourostyla cristata (P. cristata). A total of 1608 known miRNAs were found in the two libraries. There were 165 miRNAs with 1217 target miRNAs. The total number of differential miRNAs screened between vegetative cells and dormant cysts databases were 449 with p < 0.05 and |log2 fold changes| > 1. Among them, the upregulated and downregulated miRNAs were 243 and 206, respectively. Furthermore, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that some of the differentially expressed miRNAs were mainly associated with oxidative phosphorylation, two-component system, and biosynthesis of amino acids. Combining with our bioinformatics analyzes, some differentially expressed miRNAs including miR-143, miR-23b-3p, miR-28, and miR-744-5p participates in the encystment of P. cristata. Based on these findings, we propose a hypothetical signaling network of miRNAs regulating or promoting P. cristata encystment. This study shed new lights on the regulatory mechanisms of miRNAs in encystment of ciliated protozoa.
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Affiliation(s)
- Nan Pan
- School of Life Sciences, East China Normal University, Shanghai 200241, China; (N.P.); (B.N.)
| | - Muhammad Zeeshan Bhatti
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai 200241, China; (M.Z.B.); (H.Z.)
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi 46000, Pakistan
| | - Haiyang Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai 200241, China; (M.Z.B.); (H.Z.)
| | - Bing Ni
- School of Life Sciences, East China Normal University, Shanghai 200241, China; (N.P.); (B.N.)
| | - Xinpeng Fan
- School of Life Sciences, East China Normal University, Shanghai 200241, China; (N.P.); (B.N.)
- Correspondence: ;
| | - Jiwu Chen
- School of Life Sciences, East China Normal University, Shanghai 200241, China; (N.P.); (B.N.)
- Correspondence: ;
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Lin B, Feng D, Xu J. Cardioprotective effects of microRNA-18a on acute myocardial infarction by promoting cardiomyocyte autophagy and suppressing cellular senescence via brain derived neurotrophic factor. Cell Biosci 2019; 9:38. [PMID: 31168354 PMCID: PMC6509849 DOI: 10.1186/s13578-019-0297-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 04/20/2019] [Indexed: 12/18/2022] Open
Abstract
Background The prevention of cardiovascular diseases is a matter of great concern, of which acute myocardial infarction (AMI) remains one of the leading causes of death resulting in high morbidity worldwide. Emerging evidence highlights the importance of microRNAs (miRNAs) as functional regulators in cardiovascular disease. In this study, an AMI rat model was established in order to investigate the effect of miR-18a on cardiomyocyte autophagy and senescence in AMI and the underlying mechanism. Methods In the present study, an AMI model was induced by ligating the anterior descending branch of left coronary artery in Wistar rats. Dual-luciferase reporter gene assay was introduced for exploration on the relationship between miR-18a and brain derived neurotrophic factor (BDNF). The gain- and loss-of-function experiments were performed to elucidate miR-18a and BDNF effects on cell autophagy and senescence in AMI by transfecting hypoxia-exposed H9c2 cells with miR-18a inhibitor or mimic, siRNA against BDNF, or hypoxia-exposed H9c2 cell treatment with an agonist of the Akt/mTOR axis (LM22B-10). Results Upregulation of miR-18a was found in AMI, while downregulation was present in BDNF to activate the Akt/mTOR axis. Compared with the miR-18a inhibitor group, the expression of p-Akt and p-mTOR increased and the number of senescent cells increased in the miR-18a inhibitor + LM22B-10 group, and the expression of Beclin1, LC3-II, p62 decreased and autophagy decreased (all p < 0.05). Furthermore, this could be rescued by knocking down BDNF or Akt/mTOR axis activation by LM22B-10. Conclusion All in all, downregulation of miR-18a could promote BDNF expression, which offers protection against AMI by inactivating the Akt/mTOR axis, highlighting a promising therapeutic strategy for AMI treatment.
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Affiliation(s)
- Bin Lin
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, 1, Jianshe East Road, Zhengzhou, 450052 Henan People's Republic of China
| | - Deguang Feng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, 1, Jianshe East Road, Zhengzhou, 450052 Henan People's Republic of China
| | - Jing Xu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, 1, Jianshe East Road, Zhengzhou, 450052 Henan People's Republic of China
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Protective effects of lncRNA H19 silence against hypoxia-induced injury in PC-12 cells by regulating miR-28. Int J Biol Macromol 2019; 121:546-555. [DOI: 10.1016/j.ijbiomac.2018.10.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/08/2018] [Indexed: 01/05/2023]
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Emerging Role of mTOR Signaling-Related miRNAs in Cardiovascular Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6141902. [PMID: 30305865 PMCID: PMC6165581 DOI: 10.1155/2018/6141902] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 07/04/2018] [Indexed: 12/21/2022]
Abstract
Mechanistic/mammalian target of rapamycin (mTOR), an atypical serine/threonine kinase of the phosphoinositide 3-kinase- (PI3K-) related kinase family, elicits a vital role in diverse cellular processes, including cellular growth, proliferation, survival, protein synthesis, autophagy, and metabolism. In the cardiovascular system, the mTOR signaling pathway integrates both intracellular and extracellular signals and serves as a central regulator of both physiological and pathological processes. MicroRNAs (miRs), a class of short noncoding RNA, are an emerging intricate posttranscriptional modulator of critical gene expression for the development and maintenance of homeostasis across a wide array of tissues, including the cardiovascular system. Over the last decade, numerous studies have revealed an interplay between miRNAs and the mTOR signaling circuit in the different cardiovascular pathophysiology, like myocardial infarction, hypertrophy, fibrosis, heart failure, arrhythmia, inflammation, and atherosclerosis. In this review, we provide a comprehensive state of the current knowledge regarding the mechanisms of interactions between the mTOR signaling pathway and miRs. We have also highlighted the latest advances on mTOR-targeted therapy in clinical trials and the new perspective therapeutic strategies with mTOR-targeting miRs in cardiovascular diseases.
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MicroRNA as a Therapeutic Target in Cardiac Remodeling. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1278436. [PMID: 29094041 PMCID: PMC5637866 DOI: 10.1155/2017/1278436] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/23/2017] [Accepted: 08/09/2017] [Indexed: 12/20/2022]
Abstract
MicroRNAs (miRNAs) are small RNA molecules that contain 18–25 nucleotides. The alterations in their expression level play crucial role in the development of many disorders including heart diseases. Myocardial remodeling is the final pathological consequence of a variety of myocardial diseases. miRNAs have central role in regulating pathogenesis of myocardial remodeling by modulating cardiac hypertrophy, cardiomyocytes injury, cardiac fibrosis, angiogenesis, and inflammatory response through multiple mechanisms. The balancing and tight regulation of different miRNAs is a key to drive the cellular events towards functional recovery and any fall in this leads to detrimental effect on cardiac function following various insults. In this review, we discuss the impact of alterations of miRNAs expression on cardiac hypertrophy, cardiomyocytes injury, cardiac fibrosis, angiogenesis, and inflammatory response. We have also described the targets (receptors, signaling molecules, transcription factors, etc.) of miRNAs on which they act to promote or attenuate cardiac remodeling processes in different type cells of cardiac tissues.
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Chen GM, Zheng AJ, Cai J, Han P, Ji HB, Wang LL. microRNA-145-3p inhibits non-small cell lung cancer cell migration and invasion by targeting PDK1 via the mTOR signaling pathway. J Cell Biochem 2017; 119:885-895. [PMID: 28661070 DOI: 10.1002/jcb.26252] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 06/28/2017] [Indexed: 12/12/2022]
Abstract
The mammalian target of rapamycin (mTOR) pathway is dysregulated in more than 50% of all human malignancies and is a major target in cancer treatment. In this study, we explored the underlying mechanism involving microRNA-145-3p (miR-145-3p) in the development and progression of non-small cell lung cancer (NSCLC) by targeting PDK1 via the mTOR signaling pathway. NSCLC tissues and adjacent normal tissues were obtained from 83 NSCLC patients. miR-145-3p, PDK1, and mTOR levels were determined by quantitative real-time polymerase chain reaction (qRT-PCR) and immunohistochemistry. Human NSCLC cell lines A549 and H1299 were transfected with miR-145-3p and siPDK1 to confirm the effect of miR-145-3p and PDK1 on NSCLC cells in vitro. Cell growth was evaluated by a CCK8 assay. Cell motility and chemotaxis analysis were determined by the scratch test and chemotaxis assay, respectively. The protein levels of PDK1 and mTOR were measured using the western blotting. Results showed lower level of miR-145-3p and higher levels of PDK1 and mTOR in NSCLC tissues compared to the adjacent normal tissues. In vitro results showed that cell growth, cell motility, and chemotaxis were all inhibited in cells transfected with miR-145-3p and those transfected with siPDK. Additionally, dual luciferase reporter gene assay helped confirmed that PDK1 is a target of miR-145. Finally, levels of PDK1, mTOR, and phosphorylated-mTOR were lower in cells transfected with miR-145-3p as well as those with siPDK1. These findings indicate that miR-145-3p may inhibit cell growth, motility, and chemotaxis in NSCLC by targeting PDK1 through suppressing the mTOR pathway.
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Affiliation(s)
- Gui-Min Chen
- Department of Oncology, Linyi Cancer Hospital, Linyi, P. R. China
| | - A-Juan Zheng
- Department of Imaging, Linyi People's Hospital, Linyi, P. R. China
| | - Jing Cai
- Department of Neurosurgery, Linyi People's Hospital, Linyi, P. R. China
| | - Ping Han
- Department of Respiratory Medicine, Linyi People's Hospital, Linyi, P. R. China
| | - Hong-Bo Ji
- Department of Medical Oncology in Section One, Inner Mongolia Chifeng Hospital, Chifeng, P. R. China
| | - Le-Le Wang
- Department of Medical Oncology in Section One, Inner Mongolia Chifeng Hospital, Chifeng, P. R. China
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Wang H, Cai J. The role of microRNAs in heart failure. Biochim Biophys Acta Mol Basis Dis 2016; 1863:2019-2030. [PMID: 27916680 DOI: 10.1016/j.bbadis.2016.11.034] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 11/26/2016] [Accepted: 11/29/2016] [Indexed: 12/12/2022]
Abstract
MicroRNAs are small non-coding RNA molecules that regulate gene expression by inhibiting mRNA translation and/or inducing mRNA degradation. In the past decade, many in vitro and in vivo studies have explored the involvement of microRNAs in various cardiovascular diseases. In this paper, studies focused upon the target genes and functionality of miRNAs in the pathophysiological processes of heart failure are reviewed. The selected miRNAs are categorized according to the biological relevance of their target genes in relation to four cardiovascular pathologies, namely angiogenesis, cardiac hypertrophy, fibrosis and apoptosis. This review illustrates the involvement of miRNAs in different biological signaling pathways and provides an overview of current understanding of the roles of miRNAs in cardiovascular health and diseases. This article is part of a Special Issue entitled: Genetic and epigenetic control of heart failure - edited by Jun Ren & Megan Yingmei Zhang.
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Affiliation(s)
- Hongjiang Wang
- Department of Cardiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.
| | - Jun Cai
- State Key Laboratory of Cardiovascular Disease of China, National Center for Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking Union Medical College, Hypertension Center, Fuwai Hospital, Xicheng District, North Lishi Road No. 167, Beijing 100037, China.
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