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Pulcrano S, De Gregorio R, De Sanctis C, Volpicelli F, Piscitelli RM, Speranza L, Perrone-Capano C, di Porzio U, Caiazzo M, Martini A, Giacomet C, Medina D, Awatramani R, Viggiano D, Federici M, Mercuri NB, Guatteo E, Bellenchi GC. miR-218 Promotes Dopaminergic Differentiation and Controls Neuron Excitability and Neurotransmitter Release through the Regulation of a Synaptic-Related Genes Network. J Neurosci 2023; 43:8104-8125. [PMID: 37816598 PMCID: PMC10697421 DOI: 10.1523/jneurosci.0431-23.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 07/25/2023] [Accepted: 08/10/2023] [Indexed: 10/12/2023] Open
Abstract
In the brain, microRNAs (miRNAs) are believed to play a role in orchestrating synaptic plasticity at a higher level by acting as an additional mechanism of translational regulation, alongside the mRNA/polysome system. Despite extensive research, our understanding of the specific contribution of individual miRNA to the function of dopaminergic neurons (DAn) remains limited. By performing a dopaminergic-specific miRNA screening, we have identified miR-218 as a critical regulator of DAn activity in male and female mice. We have found that miR-218 is specifically expressed in mesencephalic DAn and is able to promote dopaminergic differentiation of embryonic stem cells and functional maturation of transdifferentiated induced DA neurons. Midbrain-specific deletion of both genes encoding for miR-218 (referred to as miR-218-1 and mir218-2) affects the expression of a cluster of synaptic-related mRNAs and alters the intrinsic excitability of DAn, as it increases instantaneous frequencies of evoked action potentials, reduces rheobase current, affects the ionic current underlying the action potential after hyperpolarization phase, and reduces dopamine efflux in response to a single electrical stimulus. Our findings provide a comprehensive understanding of the involvement of miR-218 in the dopaminergic system and highlight its role as a modulator of dopaminergic transmission.SIGNIFICANCE STATEMENT In the past decade, several miRNAs have emerged as potential regulators of synapse activity through the modulation of specific gene expression. Among these, we have identified a dopaminergic-specific miRNA, miR-218, which is able to promote dopaminergic differentiation and regulates the translation of an entire cluster of synapse related mRNAs. Deletion of miR-218 has notable effects on dopamine release and alters the intrinsic excitability of dopaminergic neurons, indicating a direct control of dopaminergic activity by miR-218.
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Affiliation(s)
- Salvatore Pulcrano
- Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, Naples, 80131, Italy
| | - Roberto De Gregorio
- Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, Naples, 80131, Italy
- Caryl and Israel Englander Institute for Precision Medicine, Weill Cornell Medicine and New York Presbyterian, New York, New York 10021
| | - Claudia De Sanctis
- Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, Naples, 80131, Italy
- Neuropathology Brain Bank at Mount Sinai, New York, New York 10029
| | - Floriana Volpicelli
- Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, Naples, 80131, Italy
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, 80131, Italy
| | - Rosa Maria Piscitelli
- Fondazione Santa Lucia Istituto Di Ricovero e Cura a Carattere Scientifico, Rome, 00143, Italy
| | - Luisa Speranza
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, New York 10461
| | - Carla Perrone-Capano
- Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, Naples, 80131, Italy
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, 80131, Italy
| | - Umberto di Porzio
- Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, Naples, 80131, Italy
| | - Massimiliano Caiazzo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, 80131, Italy
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, 3584 CG, The Netherlands
| | - Alessandro Martini
- Fondazione Santa Lucia Istituto Di Ricovero e Cura a Carattere Scientifico, Rome, 00143, Italy
| | - Cecilia Giacomet
- Fondazione Santa Lucia Istituto Di Ricovero e Cura a Carattere Scientifico, Rome, 00143, Italy
| | - Diego Medina
- Telethon Institute of Genetics and Medicine, Pozzuoli, 80078, Italy
- Department of Medical and Translational Science, Federico II University, Naples, 80131, Italy
| | | | - Davide Viggiano
- Department of Translational Medical Sciences, University of Campania "L. Vanvitelli," Naples, 80131, Italy
| | - Mauro Federici
- Fondazione Santa Lucia Istituto Di Ricovero e Cura a Carattere Scientifico, Rome, 00143, Italy
| | - Nicola B Mercuri
- Fondazione Santa Lucia Istituto Di Ricovero e Cura a Carattere Scientifico, Rome, 00143, Italy
- University of Tor Vergata, Department of Systems Medicine, Rome, 00133, Italy
| | - Ezia Guatteo
- Fondazione Santa Lucia Istituto Di Ricovero e Cura a Carattere Scientifico, Rome, 00143, Italy
- Department of Motor Science and Wellness, Parthenope University, Naples, 80133, Italy
| | - Gian Carlo Bellenchi
- Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, Naples, 80131, Italy
- Fondazione Santa Lucia Istituto Di Ricovero e Cura a Carattere Scientifico, Rome, 00143, Italy
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Shojaei S, Moradi-Chaleshtori M, Paryan M, Koochaki A, Sharifi K, Mohammadi-Yeganeh S. Mesenchymal stem cell-derived exosomes enriched with miR-218 reduce the epithelial-mesenchymal transition and angiogenesis in triple-negative breast cancer cells. Eur J Med Res 2023; 28:516. [PMID: 37968694 PMCID: PMC10647065 DOI: 10.1186/s40001-023-01463-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 10/19/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND The epithelial-mesenchymal transition (EMT) and angiogenesis are morphogenetic processes implicated in tumor invasion and metastasis. It is found that the aberrant expression of microRNAs (miRNAs) contributes to these processes. Exosomes are considered potential natural vehicles for miRNA delivery in cancer therapy. miR-218 is one of the tumor suppressor miRNAs and its downregulation is associated with EMT and angiogenesis. We aimed to use adipose mesenchymal stem cells-derived exosomes (ADMSC-exosomes) for miR-218 delivery to breast cancer cells and evaluate miR-218 tumor-suppressing properties in vitro. METHODS Exosomes were isolated from conditioned media of ADMSCs. miR-218 was loaded to exosomes using electroporation. mRNA expression of target genes (Runx2 and Rictor) in MDA-MB-231 breast cancer cells was evaluated by qPCR. To explore the effects of miR-218 containing exosomes on breast cancer cells, viability, apoptosis, and Boyden chamber assays were performed. The angiogenic capacity of MDA-MB-231 cells after treatment with miR-218 containing exosomes was assessed by in vitro tube formation assay. RESULTS miR-218 mimic was efficiently loaded to ADMSC-exosomes and delivered to MDA-MB-231 cells. Exposure to miR-218 containing exosomes significantly decreased miR-218 target genes (Runx2 and Rictor) in MDA-MB-231 cells. They increased the expression of epithelial marker (CDH1) and reduced mesenchymal marker (CDH2). miR-218 restoration using miR-218 containing exosomes reduced viability, motility, invasion, and angiogenic capacity of breast cancer cells. CONCLUSIONS These findings suggest that ADMSC-exosomes can efficiently restore miR-218 levels in breast cancer cells and miR-218 can prevent breast cancer progression with simultaneous targeting of angiogenesis and EMT.
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Affiliation(s)
- Samaneh Shojaei
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Moradi-Chaleshtori
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Paryan
- Department of Research and Development, Production and Research Complex, Pasteur Institute of Iran, Tehran, Iran
| | - Ameneh Koochaki
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kazem Sharifi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samira Mohammadi-Yeganeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Taylor SR, Kobayashi M, Vilella A, Tiwari D, Zolboot N, Du JX, Spencer KR, Hartzell A, Girgiss C, Abaci YT, Shao Y, De Sanctis C, Bellenchi GC, Darnell RB, Gross C, Zoli M, Berg DK, Lippi G. MicroRNA-218 instructs proper assembly of hippocampal networks. eLife 2023; 12:e82729. [PMID: 37862092 PMCID: PMC10637775 DOI: 10.7554/elife.82729] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/10/2023] [Indexed: 10/21/2023] Open
Abstract
The assembly of the mammalian brain is orchestrated by temporally coordinated waves of gene expression. Post-transcriptional regulation by microRNAs (miRNAs) is a key aspect of this program. Indeed, deletion of neuron-enriched miRNAs induces strong developmental phenotypes, and miRNA levels are altered in patients with neurodevelopmental disorders. However, the mechanisms used by miRNAs to instruct brain development remain largely unexplored. Here, we identified miR-218 as a critical regulator of hippocampal assembly. MiR-218 is highly expressed in the hippocampus and enriched in both excitatory principal neurons (PNs) and GABAergic inhibitory interneurons (INs). Early life inhibition of miR-218 results in an adult brain with a predisposition to seizures. Changes in gene expression in the absence of miR-218 suggest that network assembly is impaired. Indeed, we find that miR-218 inhibition results in the disruption of early depolarizing GABAergic signaling, structural defects in dendritic spines, and altered intrinsic membrane excitability. Conditional knockout of Mir218-2 in INs, but not PNs, is sufficient to recapitulate long-term instability. Finally, de-repressing Kif21b and Syt13, two miR-218 targets, phenocopies the effects on early synchronous network activity induced by miR-218 inhibition. Taken together, the data suggest that miR-218 orchestrates formative events in PNs and INs to produce stable networks.
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Affiliation(s)
- Seth R Taylor
- Division of Biological Sciences, University of California, San DiegoLa JollaUnited States
| | - Mariko Kobayashi
- Laboratory of Molecular Neuro-oncology, Howard Hughes Medical Institute, Rockefeller UniversityNew YorkUnited States
| | - Antonietta Vilella
- Department of Biomedical, Metabolic and Neural Sciences; Center for Neuroscience and Neurotechnology (CfNN), University of Modena and Reggio EmiliaModenaItaly
| | - Durgesh Tiwari
- Division of Neurology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of MedicineCincinnatiUnited States
- Department of Pediatrics, University of Cincinnati College of MedicineCincinnatiUnited States
| | - Norjin Zolboot
- Department of Neuroscience, Scripps Research InstituteLa JollaUnited States
| | - Jessica X Du
- Department of Neuroscience, Scripps Research InstituteLa JollaUnited States
| | - Kathryn R Spencer
- Department of Neuroscience, Scripps Research InstituteLa JollaUnited States
| | - Andrea Hartzell
- Department of Neuroscience, Scripps Research InstituteLa JollaUnited States
| | - Carol Girgiss
- Division of Biological Sciences, University of California, San DiegoLa JollaUnited States
| | - Yusuf T Abaci
- Division of Biological Sciences, University of California, San DiegoLa JollaUnited States
| | - Yufeng Shao
- Department of Neuroscience, Scripps Research InstituteLa JollaUnited States
| | | | - Gian Carlo Bellenchi
- Institute of Genetics and Biophysics A Buzzati-TraversoNaplesItaly
- IRCCS Fondazione Santa LuciaRomeItaly
| | - Robert B Darnell
- Laboratory of Molecular Neuro-oncology, Howard Hughes Medical Institute, Rockefeller UniversityNew YorkUnited States
| | - Christina Gross
- Division of Neurology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of MedicineCincinnatiUnited States
- Department of Pediatrics, University of Cincinnati College of MedicineCincinnatiUnited States
| | - Michele Zoli
- Department of Biomedical, Metabolic and Neural Sciences; Center for Neuroscience and Neurotechnology (CfNN), University of Modena and Reggio EmiliaModenaItaly
| | - Darwin K Berg
- Division of Biological Sciences, University of California, San DiegoLa JollaUnited States
| | - Giordano Lippi
- Department of Neuroscience, Scripps Research InstituteLa JollaUnited States
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Chen Y, Tu MJ, Han F, Liu Z, Batra N, Lara PN, Chen HW, Bi H, Yu AM. Use of recombinant microRNAs as antimetabolites to inhibit human non-small cell lung cancer. Acta Pharm Sin B 2023; 13:4273-4290. [PMID: 37799388 PMCID: PMC10547963 DOI: 10.1016/j.apsb.2023.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 03/13/2023] [Accepted: 05/18/2023] [Indexed: 10/07/2023] Open
Abstract
During the development of therapeutic microRNAs (miRNAs or miRs), it is essential to define their pharmacological actions. Rather, miRNA research and therapy mainly use miRNA mimics synthesized in vitro. After experimental screening of unique recombinant miRNAs produced in vivo, three lead antiproliferative miRNAs against human NSCLC cells, miR-22-3p, miR-9-5p, and miR-218-5p, were revealed to target folate metabolism by bioinformatic analyses. Recombinant miR-22-3p, miR-9-5p, and miR-218-5p were shown to regulate key folate metabolic enzymes to inhibit folate metabolism and subsequently alter amino acid metabolome in NSCLC A549 and H1975 cells. Isotope tracing studies further confirmed the disruption of one-carbon transfer from serine to folate metabolites by all three miRNAs, inhibition of glucose uptake by miR-22-3p, and reduction of serine biosynthesis from glucose by miR-9-5p and -218-5p in NSCLC cells. With greater activities to interrupt NSCLC cell respiration, glycolysis, and colony formation than miR-9-5p and -218-5p, recombinant miR-22-3p was effective to reduce tumor growth in two NSCLC patient-derived xenograft mouse models without causing any toxicity. These results establish a common antifolate mechanism and differential actions on glucose uptake and metabolism for three lead anticancer miRNAs as well as antitumor efficacy for miR-22-3p nanomedicine, which shall provide insight into developing antimetabolite RNA therapies.
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Affiliation(s)
- Yixin Chen
- Department of Biochemistry and Molecular Medicine, School of Medicine, UC Davis, Sacramento, CA 95817, USA
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Mei-Juan Tu
- Department of Biochemistry and Molecular Medicine, School of Medicine, UC Davis, Sacramento, CA 95817, USA
| | - Fangwei Han
- School of Public Health, UNT Health Science Center, Fort Worth, TX 76107, USA
| | - Zhenzhen Liu
- Department of Biochemistry and Molecular Medicine, School of Medicine, UC Davis, Sacramento, CA 95817, USA
| | - Neelu Batra
- Department of Biochemistry and Molecular Medicine, School of Medicine, UC Davis, Sacramento, CA 95817, USA
| | - Primo N. Lara
- Department of Internal Medicine, School of Medicine, UC Davis, Sacramento, CA 95817, USA
| | - Hong-Wu Chen
- Department of Biochemistry and Molecular Medicine, School of Medicine, UC Davis, Sacramento, CA 95817, USA
| | - Huichang Bi
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ai-Ming Yu
- Department of Biochemistry and Molecular Medicine, School of Medicine, UC Davis, Sacramento, CA 95817, USA
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Hashemi M, Gholami S, Raesi R, Sarhangi S, Mahmoodieh B, Koohpar ZK, Goharrizi MASB, Behroozaghdam M, Entezari M, Salimimoghadam S, Zha W, Rashidi M, Abdi S, Taheriazam A, Nabavi N. Biological and therapeutic viewpoints towards role of miR-218 in human cancers: Revisiting molecular interactions and future clinical translations. Cell Signal 2023:110786. [PMID: 37380085 DOI: 10.1016/j.cellsig.2023.110786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/20/2023] [Accepted: 06/26/2023] [Indexed: 06/30/2023]
Abstract
Understanding the exact pathogenesis of cancer is difficult due to heterogenous nature of tumor cells and multiple factors that cause its initiation and development. Treatment of cancer is mainly based on surgical resection, chemotherapy, radiotherapy and their combination, while gene therapy has been emerged as a new kind of therapy for cancer. Post-transcriptional regulation of genes has been of interest in recent years and among various types of epigenetic factors that can modulate gene expression, short non-coding RNAs known as microRNAs (miRNAs) have obtained much attention. The stability of mRNA decreases by miRNAs to repress gene expression. miRNAs can regulate tumor malignancy and biological behavior of cancer cells and understanding their function in tumorigenesis can pave the way towards developing new therapeutics in future. One of the new emerging miRNAs in cancer therapy is miR-218 that increasing evidence highlights its anti-cancer activity, while a few studies demonstrate its oncogenic function. The miR-218 transfection is promising in reducing progression of tumor cells. miR-218 shows interactions with molecular mechanisms including apoptosis, autophagy, glycolysis and EMT, and the interaction is different. miR-218 induces apoptosis, while it suppresses glycolysis, cytoprotective autophagy and EMT. Low expression of miR-218 can result in development of chemoresistance and radio-resistance in tumor cells and direct targeting of miR-218 as a key player is promising in cancer therapy. LncRNAs and circRNAs are nonprotein coding transcripts that can regulate miR-218 expression in human cancers. Moreover, low expression level of miR-218 can be observed in human cancers such as brain, gastrointestinal and urological cancers that mediate poor prognosis and low survival rate.
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Affiliation(s)
- Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran
| | - Sadaf Gholami
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran
| | - Rasoul Raesi
- Department of Health Services Management, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical-Surgical Nursing, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sareh Sarhangi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran
| | - Behnaz Mahmoodieh
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Zeinab Khazaei Koohpar
- Department of Cell and Molecular Biology, Faculty of Biological Sciences,Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | | | - Mitra Behroozaghdam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Wenliang Zha
- Second Affiliated Hospital, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Soheila Abdi
- Department of Physics, Safadasht Branch, Islamic Azad university, Tehran, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6 Vancouver, BC, Canada.
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Wischmann FJ, Troschel FM, Frankenberg M, Kemper B, Vijaya Kumar A, Sicking M, Ibrahim SA, Kiesel L, Götte M, Eich HT, Greve B. Tumor suppressor miR-218 directly targets epidermal growth factor receptor (EGFR) expression in triple-negative breast cancer, sensitizing cells to irradiation. J Cancer Res Clin Oncol 2023:10.1007/s00432-023-04750-x. [PMID: 37088795 PMCID: PMC10374822 DOI: 10.1007/s00432-023-04750-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/05/2023] [Indexed: 04/25/2023]
Abstract
PURPOSE MicroRNA-218 (miR-218) is a key regulator of numerous processes relevant to tumor progression. In the present study, we aimed to characterize the relationship between miR-218 and the Epidermal Growth Factor Receptor (EGFR) as well as to understand downstream effects in triple-negative breast cancer (TNBC). METHODS We assessed miR-218 and EGFR expression in cell lines and publicly available primary breast cancer gene expression data. We then overexpressed miR-218 in two TNBC cell lines and investigated effects on EGFR and downstream mitogen-activated protein (MAP) kinase signaling. Luciferase reporter assay was used to characterize a direct binding interaction between miR-218 and EGFR mRNA. Digital holographic microscopy helped investigate cell migration and dry mass after miR-218 overexpression. Cell division and invasion were assessed microscopically, while radiation response after miR-218 overexpression alone or combined with additional EGFR knockdown was investigated via clonogenic assays. RESULTS We found an inverse correlation between EGFR expression and miR-218 levels in cell lines and primary breast cancer tissues. MiR-218 overexpression resulted in a downregulation of EGFR via direct binding of the mRNA. Activation of EGFR and downstream p44/42 MAPK signaling were reduced after pre-miR-218 transfection. Cell proliferation, motility and invasiveness were inhibited whereas cell death and mitotic catastrophe were upregulated in miR-218 overexpressing cells compared to controls. MiR-218 overexpressing and EGFR siRNA-treated cells were sensitized to irradiation, more than miR-218 overexpressing cells alone. CONCLUSION This study characterizes the antagonistic relationship between miR-218 and EGFR. It also demonstrates downstream functional effects of miR-218 overexpression, leading to anti-tumorigenic cellular changes.
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Affiliation(s)
- Franz-Josef Wischmann
- Department of Radiation Oncology, University Hospital Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany
| | - Fabian M Troschel
- Department of Radiation Oncology, University Hospital Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
| | - Maj Frankenberg
- Department of Radiation Oncology, University Hospital Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany
| | - Björn Kemper
- Biomedical Technology Center, Medical Faculty, University of Münster, Münster, Germany
| | - Archana Vijaya Kumar
- Department of Gynecology and Obstetrics, University Hospital Münster, Münster, Germany
| | - Mark Sicking
- Department of Radiation Oncology, University Hospital Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany
| | | | - Ludwig Kiesel
- Department of Gynecology and Obstetrics, University Hospital Münster, Münster, Germany
| | - Martin Götte
- Department of Gynecology and Obstetrics, University Hospital Münster, Münster, Germany
| | - Hans Theodor Eich
- Department of Radiation Oncology, University Hospital Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany
| | - Burkhard Greve
- Department of Radiation Oncology, University Hospital Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
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Nian R, Li W, Li X, Zhang J, Li W, Pan F, Cheng J, Jin X. LncRNA MCM3AP-AS1 serves as a competing endogenous RNA of miR-218 to upregulate GLUT1 in papillary thyroid carcinoma. Arch Endocrinol Metab 2023; 67:55-63. [PMID: 35929906 PMCID: PMC9983800 DOI: 10.20945/2359-3997000000510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Objective MCM3AP-AS1 has been characterized as an oncogenic long non-coding RNA (lncRNA) in several cancers including papillary thyroid cancer (PTC), but its role in PTC has not been fully elucidated. Considering the critical role of lncRNAs in cancer biology, further functional analysis of MCM3AP-AS1 in PTC may provide novel insights into PTC management. Subjects and methods Paired tumor and non-tumor tissues were collected from 63 papillary thyroid carcinoma (PTC) patients. Expression levels of MCM3AP-AS1, miR-218 and GLUT1 in tissue samples were analyzed by qRT-PCR. Cell transfection was performed to explore the interactions among MCM3AP-AS1, miR-218 and GLUT1. Cell proliferation assay was performed to evaluate the effects of MCM3AP-AS1 and miR-218 on cell proliferation. Results MCM3AP-AS1 accumulated to high levels in PTC tissues and was affected by clinical stage. MCM3AP-AS1 showed a positive correlation with GLUT1 across PTC tissues. RNA interaction prediction showed that MCM3AP-AS1 could bind to miR-218, which can directly target GLUT1. MCM3AP-AS1 and miR-218 showed no regulatory role regulating the expression of each other, but overexpression of MCM3AP-AS1 upregulated GLUT1 and enhanced cell proliferation. In contrast, overexpression of miR-218 downregulated GLUT1 and attenuated cell proliferation. In addition, miR-218 suppressed the role of MCM3AP-AS1 in regulating the expression of GLUT1 and cell proliferation. Conclusion MCM3AP-AS1 may serve as a competing endogenous RNA of miR-218 to upregulate GLUT1 in PTC, thereby promoting cell proliferation. The MCM3APAS1/ miR-218/GLUT1 pathway characterized in the present study might serve as a potential target to treat PTC.
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Affiliation(s)
- Rui Nian
- Department of Pathology, Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong City, Shaanxi Province, PR China
| | - Wanjun Li
- Department of Pathology, Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong City, Shaanxi Province, PR China,
| | - Xiang Li
- Department of Pathology, Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong City, Shaanxi Province, PR China
| | - Jiayu Zhang
- Department of Pathology, Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong City, Shaanxi Province, PR China
| | - Weihua Li
- Department of Pathology, Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong City, Shaanxi Province, PR China
| | - Fanfan Pan
- Department of Pathology, Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong City, Shaanxi Province, PR China
| | - Jing Cheng
- Department of Pathology, Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong City, Shaanxi Province, PR China
| | - Xin Jin
- Department of Pathology, Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong City, Shaanxi Province, PR China
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Li Q, Deng Y, Liu X. Delivering Multifunctional Peptide-Conjugated Gene Carrier/miRNA-218 Complexes from Monodisperse Microspheres for Bone Regeneration. ACS Appl Mater Interfaces 2022; 14:42904-42914. [PMID: 36102571 PMCID: PMC10016386 DOI: 10.1021/acsami.2c10728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
MicroRNAs (miRNAs) play a pivotal role in regulating gene expression and are considered new molecular targets in bone tissue engineering. However, effective delivery of miRNAs to the defect areas and transfection of the miRNAs into osteogenic progenitor cells has been an obstacle in the application. In this work, miRNA-218 (miR-218) was used as an osteogenic miRNA regulator, and a multifunctional peptide-conjugated gene carrier poly(lactide-co-glycolide)-g-polyethylenimine-b-polyethylene glycol-R9-G4-IKVAVW (PPP-RGI) was developed to condense with miR-218 to form PPP-RGI/miR-218 complexes that were further encapsulated into monodisperse injectable microspheres for enhanced bone regeneration. The PPP-RGI was synthesized via conjugating R9-G4-IKVAVW (RGI), a multifunctional peptide, onto poly(lactide-co-glycolide)-g-polyethylenimine-b-polyethylene glycol (PPP). A microfluidic and synchronous photo-cross-linking process was further developed to encapsulate the PPP-RGI/miR-218 complexes into monodisperse gelatin methacryloyl microspheres. The monodisperse microspheres controlled the delivery of PPP-RGI/miR-218 to the designated defect site, and PPP-RGI facilitated the transfection of miR-218 into osteogenic progenitor cells. An in vivo calvarial defect model showed that the PPP-RGI/miR-218-loaded microspheres significantly enhanced bone tissue regeneration. This work provides a novel approach to effectively deliver miRNA and transfect targeting cells in vivo for advanced regenerative therapies.
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Affiliation(s)
- Qian Li
- Department of Biomedical Sciences, Texas A&M University School of Dentistry, Dallas, Texas 75246, United States
| | - Yuejia Deng
- Department of Biomedical Sciences, Texas A&M University School of Dentistry, Dallas, Texas 75246, United States
| | - Xiaohua Liu
- Department of Biomedical Sciences, Texas A&M University School of Dentistry, Dallas, Texas 75246, United States
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9
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Schell G, Roy B, Prall K, Dwivedi Y. miR-218: A Stress-Responsive Epigenetic Modifier. Noncoding RNA 2022; 8:ncrna8040055. [PMID: 35893238 PMCID: PMC9326663 DOI: 10.3390/ncrna8040055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/16/2022] Open
Abstract
Understanding the epigenetic role of microRNAs (miRNAs) has been a critical development in the field of neuropsychiatry and in understanding their underlying pathophysiology. Abnormalities in miRNA expression are often seen as key to the pathogenesis of many stress-associated mental disorders, including major depressive disorder (MDD). Recent advances in omics biology have further contributed to this understanding and expanded the role of miRNAs in networking a diverse array of molecular pathways, which are essentially related to the stress adaptivity of a healthy brain. Studies have highlighted the role of many such miRNAs in causing maladaptive changes in the brain's stress axis. One such miRNA is miR-218, which is debated as a critical candidate for increased stress susceptibility. miR-218 is expressed throughout the brain, notably in the hippocampus and prefrontal cortex (PFC). It is expressed at various levels through life stages, as seen by adolescent and adult animal models. Until now, a minimal number of studies have been conducted on human subjects to understand its role in stress-related abnormalities in brain circuits. However, several studies, including animal and cell-culture models, have been used to understand the impact of miR-218 on stress response and hypothalamic-pituitary-adrenal (HPA) axis function. So far, expression changes in this miRNA have been found to regulate signaling pathways such as glucocorticoid signaling, serotonergic signaling, and glutamatergic signaling. Recently, the developmental role of miR-218 has generated interest, given its increasing expression from adolescence to adulthood and targeting the Netrin-1/DCC signaling pathway. Since miR-218 expression affects neuronal development and plasticity, it is expected that a change in miR-218 expression levels over the course of development may negatively impact the process and make individuals stress-susceptible in adulthood. In this review, we describe the role of miR-218 in stress-induced neuropsychiatric conditions with an emphasis on stress-related disorders.
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10
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Zou Q, Zhang M, Yuan R, Wang Y, Gong Z, Shi R, Li Y, Fei K, Luo C, Xiong Y, Zheng T, Zhu L, Tang G, Li M, Li X, Jiang Y. Small extracellular vesicles derived from dermal fibroblasts promote fibroblast activity and skin development through carrying miR-218 and ITGBL1. J Nanobiotechnology 2022; 20:296. [PMID: 35733144 PMCID: PMC9215004 DOI: 10.1186/s12951-022-01499-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/07/2022] [Indexed: 11/10/2022] Open
Abstract
Skin thickness is closely related to the appearance of human skin, such as sagging and wrinkling, which primarily depends on the level of collagen I synthesized by dermal fibroblasts (DFs). Small extracellular vesicles (SEVs), especially those derived from human DFs (HDFs), are crucial orchestrators in shaping physiological and pathological development of skin. However, the limited supply of human skin prevents the production of a large amount of HDFs-SEVs, and pig skin is used as a model of human skin. In this study, SEVs derived from DFs of Chenghua pigs (CH-SEVs), considered to have superior skin thickness, and Large White pigs (LW-SEVs) were collected to compare their effects on DFs and skin tissue. Our results showed that, compared with LW-SEVs, CH-SEVs more effectively promoted fibroblast proliferation, migration, collagen synthesis and contraction; in addition, in mouse model injected with both SEVs, compared with LW-SEVs, CH-SEVs increased the skin thickness and collagen I content more effectively. Some differentially expressed miRNAs and proteins were found between CH-SEVs and LW-SEVs by small RNA-seq and LC-MS/MS analysis. Interestingly, we identified that CH-SEVs were enriched in miRNA-218 and ITGBL1 protein, which played important roles in promoting fibroblast activity via activation of the downstream TGFβ1-SMAD2/3 pathway in vitro. Furthermore, overexpression of miRNA-218 and ITGBL1 protein increased the thickness and collagen I content of mouse skin in vivo. These results indicate that CH-SEVs can effectively stimulate fibroblast activity and promote skin development and thus have the potential to protect against and repair skin damage.
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Affiliation(s)
- Qin Zou
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Mei Zhang
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Rong Yuan
- Chengdu Livestock and Poultry Genetic Resources Protection Center, Chengdu, 610081, Sichuan, China
| | - Yifei Wang
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Zhengyin Gong
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Rui Shi
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Yujing Li
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Kaixin Fei
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Chenggang Luo
- Chengdu Livestock and Poultry Genetic Resources Protection Center, Chengdu, 610081, Sichuan, China
| | - Ying Xiong
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Ting Zheng
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
| | - Li Zhu
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Guoqing Tang
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Mingzhou Li
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xuewei Li
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yanzhi Jiang
- Department of Zoology, College of Life Science, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China.
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11
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Grabowska M, Kuczyński K, Piwecka M, Rabiasz A, Zemła J, Głodowicz P, Wawrzyniak D, Lekka M, Rolle K. miR-218 affects the ECM composition and cell biomechanical properties of glioblastoma cells. J Cell Mol Med 2022; 26:3913-3930. [PMID: 35702951 PMCID: PMC9279592 DOI: 10.1111/jcmm.17428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 05/10/2022] [Accepted: 05/20/2022] [Indexed: 11/27/2022] Open
Abstract
Glioblastoma (GBM) is the most common malignant brain tumour. GBM cells have the ability to infiltrate into the surrounding brain tissue, which results in a significant decrease in the patient’s survival rate. Infiltration is a consequence of the low adhesion and high migration of the tumour cells, two features being associated with the highly remodelled extracellular matrix (ECM). In this study, we report that ECM composition is partially regulated at the post‐transcriptional level by miRNA. Particularly, we show that miR‐218, a well‐known miRNA suppressor, is involved in the direct regulation of ECM components, tenascin‐C (TN‐C) and syndecan‐2 (SDC‐2). We demonstrated that the overexpression of miR‐218 reduces the mRNA and protein expression levels of TN‐C and SDC‐2, and subsequently influences biomechanical properties of GBM cells. Atomic force microscopy (AFM) and real‐time migration analysis revealed that miR‐218 overexpression impairs the migration potential and enhances the adhesive properties of cells. AFM analysis followed by F‐actin staining demonstrated that the expression level of miR‐218 has an impact on cell stiffness and cytoskeletal reorganization. Global gene expression analysis showed deregulation of a number of genes involved in tumour cell motility and adhesion or ECM remodelling upon miR‐218 treatment, suggesting further indirect interactions between the cells and ECM. The results demonstrated a direct impact of miR‐218 reduction in GBM tumours on the qualitative ECM content, leading to changes in the rigidity of the ECM and GBM cells being conducive to increased invasiveness of GBM.
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Affiliation(s)
| | - Konrad Kuczyński
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland.,NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Poland
| | - Monika Piwecka
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
| | - Alicja Rabiasz
- Institute of Human Genetics, Polish Academy of Sciences, Poznań, Poland
| | - Joanna Zemła
- Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
| | - Paweł Głodowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
| | - Dariusz Wawrzyniak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
| | - Małgorzata Lekka
- Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
| | - Katarzyna Rolle
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
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12
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Fu L, Huang X, Zhang J, Lin Z, Qin G. MiR-218 promotes oxidative stress and inflammatory response by inhibiting SPRED2-mediated autophagy in HG-induced HK-2 cells. ADV CLIN EXP MED 2022; 31:1011-1022. [PMID: 35506187 DOI: 10.17219/acem/147891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Diabetic nephropathy (DN) is one of the most common complications of diabetes mellitus (DM). MicroRNA (miR)-218 is associated with the development of diabetes. Besides, sprouty-related EVH1 domain containing 2 (SPRED2), the downstream target of miR-218, is involved in insulin resistance and inflammation. OBJECTIVES Since inflammation plays a key role in DN, and SPRED2 is known to facilitate cell autophagy, the present study aimed to investigate the role and molecular mechanism of miR-218 and SPRED2-mediated autophagy in high glucose (HG)-induced renal tubular epithelial cells using an in vitro model. MATERIAL AND METHODS The HK-2 cells were cultured in 5.5 mM or 30 mM D-glucose medium. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the expression of miR-218 and SPRED2. Western blotting was performed to calculate the levels of SPRED2, inflammatory cytokines, autophagy-related and apoptosis-related proteins. Reactive oxygen species (ROS) level was evaluated using cellular ROS assay kit, superoxide dismutase (SOD) activity was detected using SOD activity assay kit, and malondialdehyde (MDA) content was measured using lipid peroxidation. The levels of interleukin (IL)-1β, IL-6, IL-4, and tumor necrosis factor alpha (TNF-α) were detected with enzyme-linked immunosorbent assay (ELISA). Cell apoptosis was evaluated using flow cytometry analysis. The targeting relationship between miR-218 and SPRED2 was identified with a luciferase reporter. The LC3-II expression was detected with immunofluorescence. RESULTS The miR-218 expression was upregulated and SPRED2 expression was downregulated in HG-induced HK-2 cells. The miR-218 was proven to target SPRED2 and negatively regulate SPRED2 expression. Besides, downregulated miR-218 alleviated inflammatory response, oxidative stress and cell apoptosis, but aggravated autophagy. We also showed that downregulated SPRED2 reversed the effect of miR-218 on inflammation, cell apoptosis and autophagy in HG-induced HK-2 cells. CONCLUSIONS The miR-218 can promote oxidative stress and inflammatory response in HG-induced renal tubular epithelial cells by inhibiting SPRED2-mediated autophagy. This study might bring novel understanding for molecular mechanism of DN.
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Affiliation(s)
- Lanfang Fu
- Department of Endocrinology, Haikou Affiliated Hospital of Central South University, Xiangya School of Medicine, China
| | - Xinxin Huang
- Department of Endocrinology, Haikou Affiliated Hospital of Central South University, Xiangya School of Medicine, China
| | - Juyun Zhang
- Department of Endocrinology, Haikou Affiliated Hospital of Central South University, Xiangya School of Medicine, China
| | - Zhu Lin
- Department of Endocrinology, Haikou Affiliated Hospital of Central South University, Xiangya School of Medicine, China
| | - Guijun Qin
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, China
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Abstract
Liver cancer has high rates of morbidity and mortality, and its treatment is a global health challenge. Hepatocellular carcinoma (HCC) accounts for 90% of all primary liver cancer cases. B-lymphoma Mo-MLV insertion region 1 (BMI1) has been identified as a proto-oncogene, which contributes to the initiation and progression of many malignant tumors. BMI1 expression is upregulated in HCC, and it influences the occurrence and development of HCC by various mechanisms, such as the INK4a/ARF locus, NF-κB signaling pathway, and PTEN/PI3K/AKT signaling pathway. In addition, the expression of BMI1 is related to prognosis and recurrence of HCC. Hence, there is clear evidence that BMI1 is a novel and valid therapeutic target for HCC. Accordingly, the development of therapeutic strategies targeting BMI1 has been a focus of recent research, providing new directions for HCC treatment. This review summarizes the role of BMI1 in the occurrence and treatment of HCC, which will provide a basis for using BMI1 as a potential target for the development of therapeutic strategies for HCC.
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Affiliation(s)
- Ru Wang
- 278245Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hengwei Fan
- 535219The Eastern Hepatobiliary Surgery Hospital, Navy Medical University (Second Military Medical University), Shanghai, China
| | - Ming Sun
- 278245Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhongwei Lv
- 278245Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wanwan Yi
- 278245Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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14
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Tian H, Hou L, Xiong YM, Huang JX, She YJ, Bi XB, Song XR. [Retracted] miR‑218 suppresses tumor growth and enhances the chemosensitivity of esophageal squamous cell carcinoma to cisplatin. Oncol Rep 2022; 47:54. [PMID: 35039879 PMCID: PMC8808703 DOI: 10.3892/or.2022.8265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 11/27/2017] [Indexed: 11/05/2022] Open
Abstract
Following the publication of this paper, it was drawn to the Editors' attention by a concerned reader that certain of the western blotting data shown in Fig. 6 and the tumor images shown in Fig. 7A were strikingly similar to data appearing in different form in other articles by different authors. Owing to the fact that the contentious data in the above article had already been published elsewhere, or were already under consideration for publication, prior to its submission to Oncology Reports, the Editor has decided that this paper should be retracted from the Journal. After having been in contact with the authors, they agreed with the decision to retract the paper. The Editor apologizes to the readership for any inconvenience caused. [the original article was published in Oncology Reports 33: 981‑989, 2015; DOI: 10.3892/or.2014.3657].
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Affiliation(s)
- Hang Tian
- Department of Anesthesiology, Guangzhou Women and Children's medical Center, Guangzhou, Guangdong 510623, P.R. China
| | - Lei Hou
- Department of Anesthesiology, Shanxi Cancer Hospital, Taiyuan, Shanxi 030013, P.R. China
| | - Yu-Mei Xiong
- Department of Anesthesiology, Guangzhou Women and Children's medical Center, Guangzhou, Guangdong 510623, P.R. China
| | - Jun-Xiang Huang
- Department of Anesthesiology, Guangzhou Women and Children's medical Center, Guangzhou, Guangdong 510623, P.R. China
| | - Ying-Jun She
- Department of Anesthesiology, Guangzhou Women and Children's medical Center, Guangzhou, Guangdong 510623, P.R. China
| | - Xiao-Bao Bi
- Department of Anesthesiology, Guangzhou Women and Children's medical Center, Guangzhou, Guangdong 510623, P.R. China
| | - Xing-Rong Song
- Department of Anesthesiology, Guangzhou Women and Children's medical Center, Guangzhou, Guangdong 510623, P.R. China
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15
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Elfiky AM, Mohamed RH, Abd El-Hakam FE, Yassin MA, ElHefnawi M. Targeted delivery of miR-218 via decorated hyperbranched polyamidoamine for liver cancer regression. Int J Pharm 2021; 610:121256. [PMID: 34732362 DOI: 10.1016/j.ijpharm.2021.121256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/15/2021] [Accepted: 10/28/2021] [Indexed: 01/28/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of most common causes of cancer death worldwide. MicroRNA (miRNA) replacement gene therapy is a novel approach for HCC management. MiR-218 is a promising tumor suppressor miRNA that is down-regulated in HCC. Here, our aim was the targeted delivery of miR-218 expressing DNA plasmid (pmiR-218) to suppress HCC in vitro and in vivo. Hyperbranched polyamidoamine was synthesized via simple and economically one-pot reaction followed by decoration with lactobionic acid (LA-PAMAM) to selectively deliver and restore miR-218 expression in HCC. In vitro cytotoxicity investigations revealed the high biocompatibility of LA-PAMAM. Furthermore, decoration of hyperbranched polymer with LA moieties enabled LA-PAMAM to deliver pmiR-218 more efficiently to HepG2 cells compared to both PMAMA and naked pmiR-218. Such efficient delivery of miR-218 resulted in suppression of HepG2 proliferation and down-regulation of its oncogenic HOXA1 target. In vivo, LA-PAMAM/pmiR-218 treatment of HCC induced by DEN and CCl4 in mice leads to an obvious decrease in the number and size of HCC nodules. In addition, LA-PAMAM/pmiR-218 significantly improved the liver histological features, as well as down-regulated the HOXA1 in liver tissue. In conclusion, this study showed the potential of LA-PAMAM carrier for the targeted delivery of tumor suppressor miR-218 as a therapeutic candidate for HCC.
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Ye G, Liu Y, Huang L, Zhang C, Sheng Y, Wu B, Wu C, Qi Y. miRNA-218/FANCI is associated with metastasis and poor prognosis in lung adenocarcinoma: a bioinformatics analysis. Ann Transl Med 2021; 9:1298. [PMID: 34532435 PMCID: PMC8422123 DOI: 10.21037/atm-21-3823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/11/2021] [Indexed: 12/25/2022]
Abstract
Background In this study, tumor microarray analysis was used to screen the key messenger RNAs (mRNAs) and microRNAs related to the progression of lung adenocarcinoma (LUAD), in order to provide a theoretical basis for early diagnosis, therapeutic targets, and prognosis evaluation of patients with LUAD. Methods The mRNA and miRNA expression datasets came from the Gene Expression Omnibus (GEO) project database. Differentially expressed genes (DEGs) and microRNAs (DEMs) between LUAD tissues and adjacent lung tissue were obtained using GEO2R. The Search Tool for the Retrieval of Interacting Genes website was also employed to construct and visualize the interactions of overlapped DEGs. The overall survival of DEMs was investigated using the Kaplan-Meier plotter. The TargetScan website (http://www.targetscan.org/) was used to verify the relationship between FA Complementation Group I (FANCI) and the expression of miRNA-218 (miR-218). The expression of FANCI was verified using the GEO and Human Protein Atlas databases, as well as Real Time Quantitative PCR using our own samples. Next, we analyzed the relationship between the expression of FANCI and the clinicopathological characteristics as well as the prognosis of patients with LUAD. We also explored whether the FANCI was related to immune cell infiltration in LUAD. Results FANCI was identified as a hub gene and associated with poor OS. We found that miR-218 negatively regulates FANCI mRNA expression. At the mRNA expression and protein level, FANCI was more highly expressed in LUAD tissues. The expression of FANCI in LUAD was related to tumor size (χ2=13.96, P<0.001), lymphatic metastasis (χ2=3.88, P<0.05), distant metastasis (χ2=45.39, P<0.001), and stage (χ2=11.03, P<0.05). In addition, the Cox regression model found that FANCI mRNA expression was an independent predictive factor of patient survival (P<0.05). FANCI expression was both weakly related to B cells and neutrophil infiltration in LUAD. Conclusions miR-218 may negatively regulate FANCI, and FANCI could promote metastasis via extracellular matrix (ECM) receptor interaction, leading to poor prognosis of LUAD. FANCI may be a key gene to the determine metastasis and poor prognosis in patients with LUAD. Changes in the immune microenvironment may be the mechanism through which FANCI leads to poor prognosis of LUAD.
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Affiliation(s)
- Guanchao Ye
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yafei Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lan Huang
- Biological Cell Therapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chunyang Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yinliang Sheng
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bin Wu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chunli Wu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yu Qi
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Sun JX, Dou GR, Yang ZY, Liang L, Duan JL, Ruan B, Li MH, Chang TF, Xu XY, Chen JJ, Wang YS, Yan XC, Han H. Notch activation promotes endothelial quiescence by repressing MYC expression via miR-218. Mol Ther Nucleic Acids 2021; 25:554-566. [PMID: 34589277 PMCID: PMC8463319 DOI: 10.1016/j.omtn.2021.07.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 07/26/2021] [Indexed: 11/26/2022]
Abstract
After angiogenesis-activated embryonic and early postnatal vascularization, endothelial cells (ECs) in most tissues enter a quiescent state necessary for proper tissue perfusion and EC functions. Notch signaling is essential for maintaining EC quiescence, but the mechanisms of action remain elusive. Here, we show that microRNA-218 (miR-218) is a downstream effector of Notch in quiescent ECs. Notch activation upregulated, while Notch blockade downregulated, miR-218 and its host gene Slit2, likely via transactivation of the Slit2 promoter. Overexpressing miR-218 in human umbilical vein ECs (HUVECs) significantly repressed cell proliferation and sprouting in vitro. Transcriptomics showed that miR-218 overexpression attenuated the MYC proto-oncogene, bHLH transcription factor (MYC, also known as c-myc) signature. MYC overexpression rescued miR-218-mediated proliferation and sprouting defects in HUVECs. MYC was repressed by miR-218 via multiple mechanisms, including reduction of MYC mRNA, repression of MYC translation by targeting heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1), and promoting MYC degradation by targeting EYA3. Inhibition of miR-218 partially reversed Notch-induced repression of HUVEC proliferation and sprouting. In vivo, intravitreal injection of miR-218 reduced retinal EC proliferation accompanied by MYC repression, attenuated pathological choroidal neovascularization, and rescued retinal EC hyper-sprouting induced by Notch blockade. In summary, miR-218 mediates the effect of Notch activation of EC quiescence via MYC and is a potential treatment for angiogenesis-related diseases.
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Affiliation(s)
- Jia-Xing Sun
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China.,Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Guo-Rui Dou
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Zi-Yan Yang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Liang Liang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Juan-Li Duan
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Bai Ruan
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Man-Hong Li
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Tian-Fang Chang
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Xin-Yuan Xu
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Juan-Juan Chen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yu-Sheng Wang
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Xian-Chun Yan
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
| | - Hua Han
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an 710032, China
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Fei Z, Qin L, Luo F, Yu Y. CircRNA circ-ATAD1 Is Upregulated in Cervical Squamous Cell Carcinoma and Regulates Cell Proliferation and Apoptosis by Suppressing the Maturation of miR-218. Reprod Sci 2021; 28:2982-2988. [PMID: 34254279 DOI: 10.1007/s43032-021-00661-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 06/10/2021] [Indexed: 12/24/2022]
Abstract
The oncogenic function of circ-ATAD1 has been characterized in gastric cancer, while its role in cervical squamous cell carcinoma (CSCC) is unclear. This study explored the role of circ-ATAD1 in CSCC. To evaluate the differential expression of circ-ATAD1, mature miR-218, and premature miR-218 in CSCC, a total of 62 CSCC patients were subjected to biopsies to collect CSCC and paired normal tissues. Gene expression levels were quantified by RT-qPCRs. Nuclear fractionation assay was performed to analyze the subcellular location of circ-ATAD1. CSCC cells were used to perform cell transfections to explore the crosstalk between circ-ATAD1 and miR-218. The roles of circ-ATAD1 and miR-218 in CSCC cell behaviors were explored by BrdU assay, Transwell assay, cell apoptosis assay, and cell stemness assay. CSCC tissues exhibited upregulated expression of circ-ATAD1, which was localized to both nucleus and cytoplasm. Mature miR-218 was downregulated in CSCC tissues and was inversely correlated with circ-ATAD1, while premature miR-218 was not differentially expressed in CSCC. Upregulation of circ-ATAD1 in CSCC cells decreased the expression levels of mature miR-218, but not that of premature miR-218. In addition, overexpression of circ-ATAD1 increased cell proliferation and decreased cell apoptosis, while overexpression of miR-218 decreased cell proliferation and increased cell apoptosis, and it also attenuated the effects of overexpression of circ-ATAD1 on cell proliferation. However, CSCC cell invasion, migration, and stemness were not affected by circ-ATAD1 and miR-218. Circ-ATAD1 is upregulated in CSCC and may regulate cell proliferation and apoptosis by suppressing the maturation of miR-218.
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Affiliation(s)
- Zhiyi Fei
- Department of Obstetrics and Gynecology, Wuhan Puren Hospital, No. 1 Benxi Street, Qingshan District, Wuhan City, Hubei Province, 430081, People's Republic of China
| | - Li Qin
- Department of Obstetrics and Gynecology, Wuhan Puren Hospital, No. 1 Benxi Street, Qingshan District, Wuhan City, Hubei Province, 430081, People's Republic of China
| | - Fang Luo
- Department of Obstetrics and Gynecology, Wuhan Puren Hospital, No. 1 Benxi Street, Qingshan District, Wuhan City, Hubei Province, 430081, People's Republic of China
| | - Yi Yu
- Department of Obstetrics and Gynecology, Wuhan Puren Hospital, No. 1 Benxi Street, Qingshan District, Wuhan City, Hubei Province, 430081, People's Republic of China.
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Giorgio ED, Cutano V, Minisini M, Tolotto V, Dalla E, Brancolini C. A regulative epigenetic circuit supervised by HDAC7 represses IGFBP6 and IGFBP7 expression to sustain mammary stemness. Epigenomics 2021; 13:683-698. [PMID: 33878891 DOI: 10.2217/epi-2020-0347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: In the breast, the pleiotropic epigenetic regulator HDAC7 can influence stemness. Materials & Methods: The authors used MCF10 cells knocked-out for HDAC7 to explore the contribution of HDAC7 to IGF1 signaling. Results: HDAC7 buffers H3K27ac levels at the IGFBP6 and IGFBP7 genomic loci and influences their expression. In this manner, HDAC7 can tune IGF1 signaling to sustain stemness. In HDAC7 knocked-out cells, RXRA promotes the upregulation of IGFBP6/7 mRNAs. By contrast, HDAC7 increases FABP5 expression, possibly through repression of miR-218. High levels of FABP5 can reduce the delivery of all-trans-retinoic acid to RXRA. Accordingly, the silencing of FABP5 increases IGFBP6 and IGFBP7 expression and reduces mammosphere generation. Conclusion: The authors propose that HDAC7 controls the uptake of all-trans-retinoic acid, thus influencing RXRA activity and IGF1 signaling.
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Affiliation(s)
- Eros Di Giorgio
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, Udine, 33100, Italy
| | - Valentina Cutano
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, Udine, 33100, Italy
| | - Martina Minisini
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, Udine, 33100, Italy
| | - Vanessa Tolotto
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, Udine, 33100, Italy
| | - Emiliano Dalla
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, Udine, 33100, Italy
| | - Claudio Brancolini
- Department of Medicine, Università degli Studi di Udine. P.le Kolbe 4, Udine, 33100, Italy
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20
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Zhang L, Zhang L, Pan Y, Gao J, Xu Y, Li X, Tian Z, Chen H, Wang Y. Downregulation of miR-218 by porcine reproductive and respiratory syndrome virus facilitates viral replication via inhibition of type I interferon responses. J Biol Chem 2021; 296:100683. [PMID: 33887325 PMCID: PMC8131720 DOI: 10.1016/j.jbc.2021.100683] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 04/14/2021] [Accepted: 04/18/2021] [Indexed: 12/15/2022] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) is a devastating pathogen in the swine industry worldwide. miRNAs are reported to be involved in virus-host interaction. Here, we used high-throughput sequencing and miRNA inhibitors to screen possible miRNAs that can inhibit PRRSV infection on its target cell, porcine alveolar macrophages. We observed that miR-218 was downregulated upon virus infection, and knockdown of miR-218 significantly enhanced PRRSV replication. Overexpression of miR-218 resulted in a decrease in PRRSV replication, and this overexpression did not alter viral genomic RNA levels, but rather increased antiviral interferon signaling. Further analysis revealed that miR-218 regulated PRRSV replication by directly targeting porcine suppressor of cytokine signaling 3 (SOCS3), a JAK2 kinase inhibitor. Knockdown of the endogenous SOCS3 expression led to augmentation of type I interferon genes and resulted in decreased PRRSV replication, and vice versa. During PRRSV infection in vivo and in vitro, cellular miR-218 expression was downregulated and SOCS3 expression was upregulated, further supporting the inverse correlation between miR-218 and SOCS3 expression. The data on SOCS3 depletion in combination with miR-218 inhibition suggested that the antiviral activity of miR-218 required the SOCS3-mediated signaling pathway. Similarly, miR-218 negatively regulated PRRSV replication in Marc-145 cells, as well as the replication of porcine epidemic diarrhea virus and transmissible gastroenteritis virus in Vero and ST cells respectively. Taken together, these results demonstrate that PRRSV-induced miR-218 downregulation serves to inhibit the type I interferon response and may provide a novel therapeutic target for treatment of PRRSV and other viral infections.
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Affiliation(s)
- Lin Zhang
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Lu Zhang
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yu Pan
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Junxin Gao
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yunfei Xu
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xi Li
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Zhijun Tian
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Hongyan Chen
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yue Wang
- State Key Laboratory of Veterinary Biotechnology, National Poultry Laboratory Animal Resource Center, Heilongjiang Provincial Key Laboratory of Laboratory Animal and Comparative Medicine, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China.
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21
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Lu SY, Fu CL, Liang L, Yang B, Shen W, Wang QW, Chen Y, Chen YF, Liu YN, Zhu L, Zhao J, Shi W, Mi S, Yao J. miR- 218- 2 regulates cognitive functions in the hippocampus through complement component 3-dependent modulation of synaptic vesicle release. Proc Natl Acad Sci U S A 2021; 118:e2021770118. [PMID: 33782126 DOI: 10.1073/pnas.2021770118] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
microRNA-218 (miR-218) has been linked to several cognition related neurodegenerative and neuropsychiatric disorders. However, whether miR-218 plays a direct role in cognitive functions remains unknown. Here, using the miR-218 knockout (KO) mouse model and the sponge/overexpression approaches, we showed that miR-218-2 but not miR-218-1 could bidirectionally regulate the contextual and spatial memory in the mice. Furthermore, miR-218-2 deficiency induced deficits in the morphology and presynaptic neurotransmitter release in the hippocampus to impair the long term potentiation. Combining the RNA sequencing analysis and luciferase reporter assay, we identified complement component 3 (C3) as a main target gene of miR-218 in the hippocampus to regulate the presynaptic functions. Finally, we showed that restoring the C3 activity in the miR-218-2 KO mice could rescue the synaptic and learning deficits. Therefore, miR-218-2 played an important role in the cognitive functions of mice through C3, which can be a mechanism for the defective cognition of miR-218 related neuronal disorders.
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22
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Chen H, Cao W, Chen J, Liu D, Zhou L, Du F, Zhu F. miR-218 contributes to drug resistance in multiple myeloma via targeting LRRC28. J Cell Biochem 2021; 122:305-314. [PMID: 33417267 DOI: 10.1002/jcb.29684] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 01/13/2020] [Indexed: 01/09/2023]
Abstract
Multiple myeloma (MM) is a malignant neoplasm featured by obvious drug resistance and poor prognosis. MicroRNAs (miRNAs) are a class of small noncoding RNAs with crucial roles in many biological processes including cancer initiation and progression. The current study aims to investigate the pathogenic role and molecular mechanism of miRNAs in MM drug resistance. In the present study, The expression profile of miRNAs in MM samples was analyzed by microarray and real-time polymerase chain reaction. Protein expressions were detected by Western blot analysis. Cell apoptosis was detected by the Annexin V staining assay. The interaction between miRNA and the targeting mRNA was assessed using Dual luciferase reporter assay. Herein, we show that expression profile of miRNAs is deregulated in MM. miR-218, one of the most aberrational miRNAs in MM, is significantly decreased in MM cells compared to peripheral blood mononuclear cell (PBMC). Genetic manipulation reveals miR-218 control the response of MM cells to anticancer drug bortezomib (BTZ). Overexpression of miR-218 causes a significant aberrant genes expression including leucine rich repeat containing 28 (LRRC28). Mechanistic study shows that miR-218 control the drug response through mediating the expression of LRRC28 in MM cells. Overexpression of LRRC28 significantly reserves miR-218-mediated cell response to BTZ. Taken together, miR-218 is decreased in MM that contributes to BTZ resistance via targeting LRRC28, which might be used as a novel therapeutic target for multiple myeloma.
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Affiliation(s)
- Haifei Chen
- Department of Hematology, Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
| | - Weiling Cao
- Department of Pharmacy, Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
| | - Jiao Chen
- Department of Hematology, Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
| | - Danbo Liu
- Department of Hematology, Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
| | - Lingyun Zhou
- Department of Hematology, Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
| | - Fang Du
- Department of Hematology, Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
| | - Feiqi Zhu
- Cognitive Impairment Ward of Neurology Department, Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, China
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23
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Melnik S, Gabler J, Dreher SI, Hecht N, Hofmann N, Großner T, Richter W. MiR-218 affects hypertrophic differentiation of human mesenchymal stromal cells during chondrogenesis via targeting RUNX2, MEF2C, and COL10A1. Stem Cell Res Ther 2020; 11:532. [PMID: 33303006 PMCID: PMC7727242 DOI: 10.1186/s13287-020-02026-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/13/2020] [Indexed: 12/15/2022] Open
Abstract
Background Human mesenchymal stromal cells (MSC) hold hopes for cartilage regenerative therapy due to their chondrogenic differentiation potential. However, undesirable occurrence of calcification after ectopic transplantation, known as hypertrophic degeneration, remains the major obstacle limiting application of MSC in cartilage tissue regeneration approaches. There is growing evidence that microRNAs (miRs) play essential roles in post-transcriptional regulation of hypertrophic differentiation during chondrogenesis. Aim of the study was to identify new miR candidates involved in repression of hypertrophy-related targets. Methods The miR expression profile in human articular chondrocytes (AC) was compared to that in hypertrophic chondrocytes derived from human MSC by microarray analysis, and miR expression was validated by qPCR. Putative targets were searched by in silico analysis and validated by miR reporter assay in HEK293T, by functional assays (western blotting and ALP-activity) in transiently transfected SaOS-2 cells, and by a miR pulldown assay in human MSC. The expression profile of miR-218 was assessed by qPCR during in vitro chondrogenesis of MSC and re-differentiation of AC. MSC were transfected with miR-218 mimic, and differentiation outcome was assessed over 28 days. MiR-218 expression was quantified in healthy and osteoarthritic cartilage of patients. Results Within the top 15 miRs differentially expressed between chondral AC versus endochondral MSC differentiation, miR-218 was selected as a candidate miR predicted to target hypertrophy-related genes. MiR-218 was downregulated during chondrogenesis of MSC and showed a negative correlation to hypertrophic markers, such as COL10A1 and MEF2C. It was confirmed in SaOS-2 cells that miR-218 directly targets hypertrophy-related COL10A1, MEF2C, and RUNX2, as a gain of ectopic miR-218 mimic caused drop in MEF2C and RUNX2 protein accumulation, with attenuation of COL10A1 expression and significant concomitant reduction of ALP activity. A miR pulldown assay confirmed that miR-218 directly targets RUNX2, MEF2C in human MSC. Additionally, the gain of miR-218 in human MSC attenuated hypertrophic markers (MEF2C, RUNX2, COL10A1, ALPL), although with no boost of chondrogenic markers (GAG deposition, COL2A1) due to activation of WNT/β-catenin signaling. Moreover, no correlation between miR-218 expression and a pathologic phenotype in the cartilage of osteoarthritis (OA) patients was found. Conclusions Although miR-218 was shown to target pro-hypertrophic markers MEF2C, COL10A1, and RUNX2 in human MSC during chondrogenic differentiation, overall, it could not significantly reduce the hypertrophic phenotype or boost chondrogenesis. This could be explained by a concomitant activation of WNT/β-catenin signaling counteracting the anti-hypertrophic effects of miR-218. Therefore, to achieve a full inhibition of the endochondral pathway, a whole class of anti-hypertrophic miRs, including miR-218, needs to be taken into consideration.
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Affiliation(s)
- Svitlana Melnik
- Research Centre for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Jessica Gabler
- Research Centre for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Simon I Dreher
- Research Centre for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Nicole Hecht
- Research Centre for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Nina Hofmann
- Research Centre for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Tobias Großner
- Clinic for Orthopaedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Wiltrud Richter
- Research Centre for Experimental Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany.
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Xu B, Wang Q, Li W, Xia L, Ge X, Shen L, Cang Z, Peng W, Shao K, Huang S. Circular RNA circEIF4G2 aggravates renal fibrosis in diabetic nephropathy by sponging miR-218. J Cell Mol Med 2020; 26:1799-1805. [PMID: 33615661 PMCID: PMC8918410 DOI: 10.1111/jcmm.16129] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 10/16/2020] [Accepted: 11/09/2020] [Indexed: 01/30/2023] Open
Abstract
Circular RNAs play essential roles in the development of various human diseases. However, how circRNAs are involved in diabetic nephropathy (DN) are not fully understood. Our study aimed to investigate the effects of circRNA circEIF4G2 on DN. Experiments were performed in the db/db mouse model of type 2 diabetes and NRK‐52E cells. We found that circEIF4G2 was significantly up‐regulated in the kidneys of db/db mice and NRK‐52E cells stimulated by high glucose. circEIF4G2 knockdown inhibited the expressions of TGF‐β1, Collagen I and Fibronectin in high glucose‐stimulated NRK‐52E cells, which could be rescued by miR‐218 inhibitor. Knockdown of SERBP1 reduced the expression of TGF‐β1, Collagen I and Fibronectin in HG‐stimulated NRK‐52E cells. In summary, our findings suggested that circEIF4G2 promotes renal tubular epithelial cell fibrosis via the miR‐218/SERBP1 pathway, presenting a novel insight for DN treatment.
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Affiliation(s)
- Bojin Xu
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Qianqian Wang
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Wenyi Li
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Lili Xia
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Xiaoxu Ge
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Lisha Shen
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Zhen Cang
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Wenfang Peng
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Kan Shao
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
| | - Shan Huang
- Department of Endocrinology, Tongren Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China
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Wei Y, Zhou K, Wang C, Du X, Xiao Q, Chen C. Adsorption of miR-218 by lncRNA HOTAIR regulates PDE7A and affects glioma cell proliferation, invasion, and apoptosis. Int J Clin Exp Pathol 2020; 13:2973-2983. [PMID: 33425098 PMCID: PMC7791379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/07/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To evaluate the role of targeted adsorption of miR-218 by long-chain non-coding RNAHOTAIR to regulate PDE7A on glioma cell proliferation, invasion, and apoptosis. METHODS The expressions of lncRNA HOTAIR, miR-218, and PDE7A in glioma tissues and normal parcancer tissues, NHA and glioma cell lines were determined, and correlations among the three genes were analyzed. The subcellular localization of lncRNA HOTAIR was determined by fluorescent in situ hybridization. Dual-luciferase reporter assay was used to validate the targeted relationship between lncRNA HOTAIR/miR-218/PDE7A. Glioma cells were grouped to receive intervention of lncRNA HOTAIR or miR-218. MTT, transwell, and flow cytometry were performed to determine the proliferation, invasion, and apoptosis of cells. RESULTS Compared with the normal tissues and cells, the expression of lncRNA HOTAIR was increased while miR-218 was suppressed in glioma tissues samples and cells (all P<0.05). Inhibition of lncRNA HOTAIR expression, was able to induce apoptosis and suppress the proliferation and invasion of cells (all P<0.05). LncRNA HOTAIR is mainly localized in the cytoplasm, and is able to adsorb miR-218 as ceRNA. The effect of knockdown of HOTAIR on glioma cells could be partially rescued by miR-218 inhibitor. The expression of PDE7A was enhanced in glioma tissues and cells compared to normal tissues and cells (all P<0.05), which positively correlated with the expression of HOTAIR (r=0.546, P<0.05) and negatively correlated with the expression of miR-218 (r=0.363, P<0.05). The targeted relationship between miR-218 and PDE7A was validated: Overexpression of miR-218 was able to suppress the proliferation and invasion of glioma cells and restrain apoptosis compared to the miR-NC group (all P<0.05). The effect of miR-218 on glioma cells could be partially rescued by PDE7A. CONCLUSION lncRNA HOTAIR can adsorb miR-218 to regulate expression of PDE7A and promote the malignant biologic behavior of glioma cells.
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Affiliation(s)
- Yigong Wei
- Department of Neurosurgery, The Second People's Hospital of Guiyang (Jinyang Hospital) Guiyang, Guizhou Province, China
| | - Kun Zhou
- Department of Neurosurgery, The Second People's Hospital of Guiyang (Jinyang Hospital) Guiyang, Guizhou Province, China
| | - Cheng Wang
- Department of Neurosurgery, The Second People's Hospital of Guiyang (Jinyang Hospital) Guiyang, Guizhou Province, China
| | - Xiaolin Du
- Department of Neurosurgery, The Second People's Hospital of Guiyang (Jinyang Hospital) Guiyang, Guizhou Province, China
| | - Qing Xiao
- Department of Neurosurgery, The Second People's Hospital of Guiyang (Jinyang Hospital) Guiyang, Guizhou Province, China
| | - Changyi Chen
- Department of Neurosurgery, The Second People's Hospital of Guiyang (Jinyang Hospital) Guiyang, Guizhou Province, China
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26
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Wang X, Li Q, Xie T, Yuan M, Sheng X, Qi X, Xing K, Liu F, Guo Y, Xiao L, Ni H. Exosomes from bovine endometrial epithelial cells ensure trophoblast cell development by miR-218 targeting secreted frizzled related protein 2. J Cell Physiol 2020; 236:4565-4579. [PMID: 33230823 DOI: 10.1002/jcp.30180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 12/16/2022]
Abstract
Endometritis is a common disease affecting fertility in cows during the perinatal period, which disturbs the molecular milieu of the uterine environment and impairs embryo development and implantation. Exosomes are important extracellular components that transmit a variety of micro RNAs (miRNAs), which perform key regulatory functions. In this study, we investigated plasma exosomal miRNAs from cows with endometritis and from cultured endometrial epithelial cells (EECs) challenged with lipopolysaccharide (LPS) to explore the role of EEC-derived exosomes and their miRNAs in bovine endometritis. Plasma exosomes were collected from nine healthy dairy cows and nine dairy cows with endometritis, and culture supernatant exosomes were isolated from EECs challenged with or without LPS. Exosomal RNA was extracted using commercial kits and miRNA profiles were generated using RNA-seq. We found that miR-218 was differentially expressed in EECs under conditions of endometrial inflammation. Inhibition studies suggested that reduced levels of miR-218 in EEC-derived exosomes when transferred into placental trophoblast cells impaired embryonic development and decreased placental trophoblast cell migration by targeting secreted frizzled related protein 2. We propose that exosomal miR-218 secreted from EECs acts as a driver of embryonic development and differentiation. In addition, exosomal miR-218 may provide a valuable diagnostic marker for bovine endometritis.
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Affiliation(s)
- Xiangguo Wang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Qianru Li
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Tongtong Xie
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Mengyi Yuan
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Xihui Sheng
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Xiaolong Qi
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Kai Xing
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Fang Liu
- College of Economics and Management, Beijing University of Agriculture, Beijing, China
| | - Yong Guo
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Longfei Xiao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Hemin Ni
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
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27
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Zhang Y, Zheng Y, Pan E, Zhao C, Zhang H, Liu R, Wang S, Pu Y, Yin L. Synergism of HPV and MNNG repress miR-218 promoting Het-1A cell malignant transformation by targeting GAB2. Toxicology 2020; 447:152635. [PMID: 33189795 DOI: 10.1016/j.tox.2020.152635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 12/11/2022]
Abstract
Dysregulation of microRNAs (miRNAs) is induced during tumorigenesis. Our previous research suggested that HPV and MNNG led to malignant transformation of esophageal epithelial cells. To investigate the regulation and function of miR-218(miR-218-5p) during the malignant transformation of esophageal epithelial cells, we found miR-218 was inhibited synergistically by HPV and MNNG, suppressing cell proliferation, migration and invasion by up-regulating 3' untranslated region (3'UTR) GAB2 in Het-1A-HPV-MNNG cells (malignant Het-1A cells induced by HPV and MNNG). A negative correlation was found between miR-218 and GAB2 mRNA expression in esophageal cancer patients and control people. GAB2 was up-regulated in Het-1A-HPV-MNNG cells. Further, down-expression of GAB2 reversed HPV&MNNG-mediated activation of migration and invasion and repressed SHP2/ERK and Akt/mTOR pathway signaling. In conclusion, miR-218 partially accounts for the prevention effect during malignant transformation of normal esophageal epithelial cells, which targets GAB2, which supplies the potential treatment in cancer therapy.
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Affiliation(s)
- Ying Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| | - Yuhong Zheng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| | - Enchun Pan
- Huai'an Center for Disease Control and Prevention, Huai'an, 223001, Jiangsu, China.
| | - Chao Zhao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| | - Hu Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| | - Ran Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| | - Shizhi Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
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Karimi Z, Seyedjafari E, Khojasteh A, Hashemi SM, Kazemi B, Mohammadi-Yeganeh S. MicroRNA-218 competes with differentiation media in the induction of osteogenic differentiation of mesenchymal stem cell by regulating β-catenin inhibitors. Mol Biol Rep 2020; 47:8451-63. [PMID: 33051753 DOI: 10.1007/s11033-020-05885-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 09/30/2020] [Indexed: 01/01/2023]
Abstract
Osteoporosis, a systemic skeletal disorder specified by low bone mass, is associated with bone fragility and the raised risk of fractures. Activation of the Wnt/β-catenin signaling pathway has been directly demonstrated as a prominent biological event in the prevention of osteoporosis. Recently, critical roles of microRNAs (miRNAs) were further revealed in Wnt/β-catenin signaling activation and thereby contributing to the development and maintenance of the human skeleton. In this study, we investigated whether miR-218 can significantly promote the osteogenic differentiation of mesenchymal stem cells in conditional media by regulating β-catenin signaling inhibitors. The pre-miRNA nucleotide sequence of miR-218 was cloned into the pEGP-miR vector. Next, human adipose tissue-derived mesenchymal stem cells (AD-MSCs) were isolated, characterized, and transfected using pEGP-miR-218.Subsequently, the osteogenic potential of AD-MSCs was investigated in different treated groups using alkaline phosphatase (ALP)activity, calcium mineral deposition, and the expression of osteogenesis-related genes. Finally, negative regulators of Wnt signaling targeted by miR-218 were bioinformatically predicted. Our results indicated a significant increase in the ALP activity, mineralization, and osteogenesis-related genes expression in the AD-MSCs transfected with pEGP-miR-218. Also, the bioinformatic surveys and gene expression results showed that adenomatosis polyposis coli (APC) and glycogen synthase kinase 3 (GSK3-β) were downregulated in the transfected AD-MSCs in both differential and conditional media. This study provided evidence that miR-218 can promote osteogenic differentiation of AD-MSCs even in conditional media. Therefore, our findings suggest miR-218 as a putative novel therapeutic candidate in the context of osteoporosis and other bone metabolism-related diseases.
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He P, Xu Y, Wang Z. LncRNA SNHG10 increases the methylation of miR-218 gene to promote glucose uptake and cell proliferation in osteosarcoma. J Orthop Surg Res 2020; 15:353. [PMID: 32843060 PMCID: PMC7448318 DOI: 10.1186/s13018-020-01865-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND This study aimed to investigate the roles of lncRNA SNHG10 (SNHG10) and miR-218 in osteosarcoma (OS). METHODS Paired OS and non-tumor tissues were collected from 58 OS patients. The expression of SNHG10 and miR-218 in tissue samples were determined by RT-qPCR. The interaction between SNHG10 and miR-218 was evaluated by overexpression experiment. Methylation-specific PCR was performed to assess the methylation status of miR-218. Glucose uptake in OS cells was analyzed by glucose uptake assay. Cell proliferation was detected by cell proliferation assay. RESULTS SNHG10 was upregulated in OS, while miR-218 was downregulated in OS. The expression of SNHG10 and miR-218 were inversely correlated. In OS cells, high glucose induced the upregulation of SNHG10 and downregulation of miR-218. In OS cells, SNHG10 positively, and miR-218 negatively regulated glucose uptake. Overexpression of SNHG10 increased miR-218 gene methylation and decreased the expression of miR-218. In addition, overexpression of SNHG10 also suppressed the inhibitory effects of overexpression of miR-218 on cell proliferation. CONCLUSIONS SNHG10 increases the methylation of miR-218 gene to promote glucose uptake and cell proliferation in OS.
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Affiliation(s)
- Pan He
- Department of Traumatic and Osteopathy, Hunan Provincial People's Hospital, No. 61 Jiefang West Road, Changsha, 410005, Hunan Province, China
| | - Yongqiang Xu
- Department of Traumatic and Osteopathy, Hunan Provincial People's Hospital, No. 61 Jiefang West Road, Changsha, 410005, Hunan Province, China.
| | - Zhijun Wang
- Department of Traumatic and Osteopathy, Hunan Provincial People's Hospital, No. 61 Jiefang West Road, Changsha, 410005, Hunan Province, China
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Han C, Li X, Fan Q, Liu G, Yin J. CCAT1 promotes triple-negative breast cancer progression by suppressing miR-218/ZFX signaling. Aging (Albany NY) 2019; 11:4858-75. [PMID: 31310241 DOI: 10.18632/aging.102080] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 07/01/2019] [Indexed: 01/17/2023]
Abstract
Long non-coding RNAs (lncRNAs) regulate cancer development and progression. Here, we investigated the role of the lncRNA CCAT1 in triple-negative breast cancer (TNBC). CCAT1 expression was higher in TNBC cells than normal breast epithelial cells. Additionally, CCAT1 expression was higher in TNBC patient tumor tissue than adjacent normal breast tissue. Silencing CCAT1 inhibited TNBC cell proliferation, migration, and invasion in vitro, and tumor growth and progression in vivo. Bioinformatics analysis revealed that microRNA-218 (miR-218) is a potential target of CCAT1. Silencing CCAT1 resulted in an increase in miR-218 expression and inhibited TNBC cell proliferation, migration, and invasion. Silencing miR-218 reversed the effects of CCAT1 knockdown on cell proliferation, migration, and invasion, suggesting that CCAT1 promotes TNBC progression by downregulating miR-218 expression. We identified the zinc finger protein ZFX as a putative downstream target of miR-218 through bioinformatics analysis. ZFX expression was higher in TNBC than normal breast cell lines and higher in TNBC tumor tissue than adjacent normal breast tissue. Overexpression of ZFX reversed the tumor-suppressive effects of miR-218 on TNBC cell proliferation, migration, and invasion. Our data indicate that CCAT1 promotes TNBC progression by targeting the miR-218/ZFX axis.
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Khalil W, Tiraihi T, Soleimani M, Baheiraei N, Zibara K. Conversion of Neural Stem Cells into Functional Neuron-Like Cells by MicroRNA-218: Differential Expression of Functionality Genes. Neurotox Res 2020; 38:707-722. [PMID: 32696438 DOI: 10.1007/s12640-020-00244-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/01/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023]
Abstract
Conversion of mesenchymal stem cells (MSC) into neuron-like cells (NLC) is a feasible cell therapy strategy for replacing lost neurons in neuronal disorders. In this study, adipose-derived MSC (ADMSC) were converted into neural stem cells (NSC) via neurosphere. The resulting NSC were then differentiated into NLC by transduction with microRNA-218, using a lentiviral vector. ADMSC, NSC, and NLC were first characterized by flow cytometry, RT-PCR, and immunocytochemistry. The functionality of the NLC was evaluated by qRT-PCR and patch clamp recording. Immunophenotyping of ADMSC showed their immunoreactivity to MSC markers CD90, CD73, CD105, and CD49d, but not to CD31 and CD45. RT-PCR results demonstrated the expression of nestin, neurogenin, neurod1, neurofilament light, and GAP43 genes in NSC while NLC expressed synaptophysin, neurofilament heavy, and GAP43. In addition, NSC morphology changed into multipolar with long processes after transduction with miR-218. Moreover, using qRT-PCR, the expression levels of miR-218 and functionality genes CACNA1C, SNAP25, KCNH1, KCNMA1, and SCN9A were significantly increased in NLC, compared with NSC, and ADMSC at 3 weeks and 5 months post-transduction. Furthermore, the generated NLC expressed significantly higher protein levels of neurofilament heavy polypeptide (NFh) and enolase 2 (Eno2) neuronal markers, compared with ADMSC and NSC. Finally, action potentials were successfully recorded by the generated NLC, using patch clamp. In summary, ADMSC-derived NSC differentiated into functional NLC by transduction with miR-218. The generated NLC expressed functional SNAP25, CACNA1C, KCNH1, KCNMA1, and SCN9A and produced an action potential, which provides useful insights into the generation of functional neuronal cells.
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Affiliation(s)
- Wissam Khalil
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Taki Tiraihi
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Nafiseh Baheiraei
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Kazem Zibara
- Department of Biology, Faculty of Sciences, Lebanese University, Beirut, Lebanon
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Shabani Sadr NK, Shafiei M, Galehdari H, Khirolah A. The Effect of Sialic Acid on the Expression of miR-218, NF-kB, MMP-9, and TIMP-1. Biochem Genet 2020; 58:883-900. [PMID: 32607676 DOI: 10.1007/s10528-020-09981-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 06/17/2020] [Indexed: 01/29/2023]
Abstract
Sialic acid (N-acetylneuraminic acid, NANA) is found at all cell surfaces of vertebrates. Although it is widely accepted that sialic acid is an essential substrate for brain development via a significant role in nerve transfers, structure of glycosides, and synaptogenesis phenomena, there are some reports on the elevated levels of sialic acid and prevalence of neurodegeneration. Matrix metalloproteases (MMPs) and tissue inhibitor of metalloproteinases (TIMPs) are involved in neuroinflammation disorders and produced by many cell types, including activated T cells, macrophages, neurons, astrocytes, and microglial cells. It can be hypothesized that sialic acid may have a potentially critical role in regulation of a wide range of uncovered neurodegeneration factors as its downstream targets. In this study, for the first time, we aimed to analyze the possible effect of the sialic acid solution exposure in the human C118 cell line, which was derived from a human brain astrocytoma (glial cells), on the expression patterns of miR-218, NF-kB, MMP-9, and TIMP-1. For MMP-9, protein levels were studied too. Half maximal inhibitory concentration (IC50) value of NANA was obtained by MTT assay. Glial cell line was treated with sialic acid (300, 500, and 1000 µg/ml) for 24 h to investigate the effects of this ligand on the expression of miR-218, NF-kB, MMP-9, and TIMP-1 genes. Protein levels were checked by Western blotting, and by using zymography, the gelatinolytic activity of MMP-9 secreted into conditioned media was assayed. At 300 µM, 500 µM, and 1000 µM sialic acid treatments, the expression of miR-218 was downregulated; subsequently, the NF-kB, MMP-9, and TIMP-1 genes as well as their protein expressions were upregulated. More interestingly, the enzyme activity of secreted MMP-9 was upregulated too (p-values ≤ 0.05). This study could demonstrate the significant effect of sialic acid on miR-218, NF-kB, MMP-9 , and TIMP-1 expressions in gene and protein levels and also the levels of enzyme activity of secreted MMP-9. Therefore, provided information indicates the novel idea of a possible linkage between sialic acid species and regulation of these neuroinflammation genes in Glial cell line.
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Affiliation(s)
- Narjes Khatoun Shabani Sadr
- Department of Genetics, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.,Biotechnology and Bioscience Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohammad Shafiei
- Department of Genetics, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran. .,Biotechnology and Bioscience Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Hamid Galehdari
- Department of Genetics, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.,Biotechnology and Bioscience Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Alireza Khirolah
- Cellular and Molecular Research Center, Department of Clinical Biochemistry, School of Medicine, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
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Tian J, Zhang H, Mu L, Wang M, Li X, Zhang X, Xie E, Ma M, Wu D, Du Y. The miR-218/GAB2 axis regulates proliferation, invasion and EMT via the PI3K/AKT/GSK-3β pathway in prostate cancer. Exp Cell Res 2020; 394:112128. [PMID: 32522441 DOI: 10.1016/j.yexcr.2020.112128] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 05/25/2020] [Accepted: 05/30/2020] [Indexed: 12/24/2022]
Abstract
Altered expression of microRNA (miRNA) is associated with the occurrence and metastasis of various tumors. We previously found that miR-218 inhibits tumor angiogenesis through the RICTOR/VEGFA axis in prostate cancer (PCa). In this study, we determined that miR-218 also had a negative effect on cell growth, migration, and invasion ability in PCa. Our data showed that miR-218 bound to the Grb2-associated binding protein 2 (GAB2) 3'-UTR region and inhibited GAB2 expression. As a novel downstream target of miR-218, GAB2 has been reported to be involved in the occurrence and development of various human tumors, but its role in the progression and metastasis of PCa has not been addressed. We demonstrated for the first time that the expression of GAB2 in the PCa cell lines was increased, while knocking down GAB2 significantly inhibited cell growth, metastatic ability and EMT process in PCa. In addition, the recovery of GAB2 could reverse the changes in the biological function of PCa cells caused by the ectopic expression of miR-218. Mechanistically, miR-218-mediated GAB2 transcriptional suppression significantly inhibited the activity of the PI3K/AKT/GSK-3β pathway, whose abnormal activation was found to be related to the malignant progression of PCa. Taken together, our findings suggest that the miR-218/GAB2 axis may become a novel prognostic indicator and potential therapeutic target in PCa.
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Affiliation(s)
- Juanhua Tian
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, Xi'an, 710004, China
| | - Haibao Zhang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lijun Mu
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Meiyu Wang
- Department of Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xudong Li
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, China
| | - Xinwei Zhang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Enxu Xie
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Minghai Ma
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Dapeng Wu
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, China.
| | - Yuefeng Du
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, China.
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Su SS, Li BP, Li CL, Xiu FR, Wang DY, Zhang FR. Downregulation of MiR-218 can alleviate high-glucose-induced renal proximal tubule injury by targeting GPRC5A. Biosci Biotechnol Biochem 2020; 84:1123-1130. [PMID: 32028854 DOI: 10.1080/09168451.2020.1717330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The purpose of this study was to explore the functional implication of microRNA-218 (miR-218) in diabetic nephropathy (DN) through high-glucose-stimulated renal proximal tubule impairment. Biological function experiments showed that miR-218 and inflammatory factors TNF-α and IL-1β were highly expressed in renal proximal tubule under high-glucose conditions. Inhibiting miR-218 alleviated renal tubular cell injury, which was represented by miR-218 inhibitor facilitating renal tubular cell vitality whilst reducing its apoptosis and levels of inflammation factors. In addition, we confirmed that miR-218 directly targeted GPRC5A and negatively regulated its expression. Co-transfection assay showed that overexpression of GPRC5A accentuated the mitigated action of miR-218 inhibitor on renal proximal tubule cell injury induced by high-glucose. Accordingly, these data indicated that downregulation of miR-218 can assuage high-glucose-resulted renal tubular cell damage, and its ameliorative effect was achieved by negative regulation of GPRC5A, which provides a novel direction for unearthing the pathogenesis and even further biological treatment of DN.
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Affiliation(s)
- Shan-Shan Su
- Shandong University of Traditional Chinese Medicine, Jinan, P.R.China.,Department of Nephrology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, P.R. China
| | - Bao-Peng Li
- Department of Radiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, P.R. China
| | - Chun-Lin Li
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, P.R. China
| | - Fang-Rui Xiu
- Department of Nephrology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, P.R. China
| | - Dong-Yan Wang
- Department of Nephrology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, P.R. China
| | - Fa-Rong Zhang
- Department of Nephrology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, P.R. China
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Lu W, Wan X, Tao L, Wan J. Long Non-Coding RNA HULC Promotes Cervical Cancer Cell Proliferation, Migration and Invasion via miR-218/TPD52 Axis. Onco Targets Ther 2020; 13:1109-1118. [PMID: 32103980 PMCID: PMC7008195 DOI: 10.2147/ott.s232914] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 12/12/2019] [Indexed: 11/23/2022] Open
Abstract
Objective Long non-coding RNAs (lncRNAs) have been identified as important players in tumorigenesis. LncRNA highly upregulated in liver cancer (HULC) has been identified as a key regulator in the progression of various cancers. However, the functional role and the mechanisms of HULC in regulating cervical cancer cell behavior remain unclear. Methods HULC expression, miR-218 expression and TPD52 mRNA level in cervical cancer cells were examined by qRT-PCR. Cell proliferation was evaluated by MTT assay. Cell migration and invasion were examined by Transwell assay. TPD52 protein level was measured by Western blot. Dual-luciferase reporter assay was measured to verify the combination of HULC and miR-218 as well as miR-218 and TPD52. Results HULC expression was upregulated in cervical cancer cell lines, and HULC promoted cervical cancer cell proliferation, migration and invasion. Mechanistically, HULC acted as a sponge of miR-218 to elevate expression of TPD52, a target of miR-218, and thereby promoted cervical cancer cell proliferation, migration, and invasion. Conclusion HULC promotes cervical cancer cell proliferation, migration and invasion via miR-218/TPD52 axis.
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Affiliation(s)
- Wenjun Lu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Xiaobin Wan
- Department of General Surgery, The Third Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Limin Tao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Junhui Wan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
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Di Rita A, Maiorino T, Bruqi K, Volpicelli F, Bellenchi GC, Strappazzon F. miR-218 Inhibits Mitochondrial Clearance by Targeting PRKN E3 Ubiquitin Ligase. Int J Mol Sci 2020; 21:ijms21010355. [PMID: 31948106 PMCID: PMC6981953 DOI: 10.3390/ijms21010355] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/28/2019] [Accepted: 01/03/2020] [Indexed: 01/10/2023] Open
Abstract
The selective elimination of dysfunctional mitochondria through mitophagy is crucial for preserving mitochondrial quality and cellular homeostasis. The most described mitophagy pathway is regulated by a positive ubiquitylation feedback loop in which the PINK1 (PTEN induced kinase 1) kinase phosphorylates both ubiquitin and the E3 ubiquitin ligase PRKN (Parkin RBR E3 ubiquitin ligase), also known as PARKIN. This event recruits PRKN to the mitochondria, thus amplifying ubiquitylation signal. Here we report that miR-218 targets PRKN and negatively regulates PINK1/PRKN-mediated mitophagy. Overexpression of miR-218 reduces PRKN mRNA levels, thus also reducing protein content and deregulating the E3 ubiquitin ligase action. In fact, following miR-218 overexpression, mitochondria result less ubiquitylated and the autophagy machinery fails to proceed with correct mitochondrial clearance. Since mitophagy defects are associated with various human diseases, these results qualify miR-218 as a promising therapeutic target for human diseases.
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Affiliation(s)
- Anthea Di Rita
- IRCCS Fondazione Santa Lucia, 00143 Rome, Italy; (A.D.R.); (T.M.); (K.B.); (G.C.B.)
- University of Rome Tor Vergata, 00133 Rome, Italy
| | - Teresa Maiorino
- IRCCS Fondazione Santa Lucia, 00143 Rome, Italy; (A.D.R.); (T.M.); (K.B.); (G.C.B.)
| | - Krenare Bruqi
- IRCCS Fondazione Santa Lucia, 00143 Rome, Italy; (A.D.R.); (T.M.); (K.B.); (G.C.B.)
- University of Rome Tor Vergata, 00133 Rome, Italy
| | - Floriana Volpicelli
- Institute of Genetics and Biophysics “Adriano Buzzati Traverso”, CNR, 80131 Naples, Italy;
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Gian Carlo Bellenchi
- IRCCS Fondazione Santa Lucia, 00143 Rome, Italy; (A.D.R.); (T.M.); (K.B.); (G.C.B.)
- Institute of Genetics and Biophysics “Adriano Buzzati Traverso”, CNR, 80131 Naples, Italy;
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Flavie Strappazzon
- IRCCS Fondazione Santa Lucia, 00143 Rome, Italy; (A.D.R.); (T.M.); (K.B.); (G.C.B.)
- Correspondence: ; Tel.: +39-06501703093
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Wang J, Lv B, Su Y, Wang X, Bu J, Yao L. Exosome-Mediated Transfer of lncRNA HOTTIP Promotes Cisplatin Resistance in Gastric Cancer Cells by Regulating HMGA1/ miR-218 Axis. Onco Targets Ther 2019; 12:11325-11338. [PMID: 31908497 PMCID: PMC6930390 DOI: 10.2147/ott.s231846] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 11/26/2019] [Indexed: 12/29/2022] Open
Abstract
Background Chemoresistance has become a major obstacle for cancer therapy in clinic. Long noncoding RNAs (lncRNAs) have been reported to play critical roles in the development of chemoresistance in various tumors, including gastric cancer (GC). However, the role of HOXA transcript at the distal tip (HOTTIP) within extracellular vesicles (exosomes) in cisplatin-resistant GC cells remains largely unknown. Materials and methods Cell proliferation, migration and invasion were detected using Cell Counting Kit-8 (CCK-8) and transwell assays, respectively. Western blot assay was employed to analyze the protein levels of E-cadherin, N-cadherin, Vimentin, CD63, CD83, GRP78, HMGA1, and high-mobility group A1 (HMGA1). The expression levels of HOTTIP, microRNA-218 (miR-218) and HMGA1were measured by quantitative real-time polymerase chain reaction (qRT-PCR). The interaction between miR-218 and HOTTIP or HMGA1 was predicted by bioinformatics software and confirmed by the dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. Results Cell proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) were promoted in cisplatin-resistant GC cells. HOTTIP level was upregulated in cisplatin-resistant GC cells and its downregulation enhanced cisplatin sensitivity. Moreover, extracellular HOTTIP could be incorporated into exosomes and transmitted to sensitive cells, thus disseminating cisplatin resistance. Additionally, exosomal HOTTIP promoted cisplatin resistance via activating HMGA1 in GC cells. Interestingly, HMGA1 was a target of miR-218 and miR-218 could directly bind to HOTTIP. Clinically, high expression of exosomal HOTTIP in serum was associated with poor response to cisplatin treatment in GC patients. Conclusion Exosomal HOTTIP contributed to cisplatin resistance in GC cells by regulating miR-218/HMGA1 axis, providing a novel avenue for the treatment of GC.
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Affiliation(s)
- Jingyu Wang
- Department of Gastrointestinal Surgery, The Fifth Affiliate Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - Baojun Lv
- Department of Gastrointestinal Surgery, The Fifth Affiliate Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - Yonghui Su
- Department of Gastrointestinal Surgery, The Fifth Affiliate Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - Xiao Wang
- Department of Gastrointestinal Surgery, The Fifth Affiliate Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - Juyuan Bu
- Department of Gastrointestinal Surgery, The Fifth Affiliate Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - Lan Yao
- Department of Emergency Medicine, The Fifth Affiliate Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
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Song B, Ye L, Wu S, Jing Z. Long non-coding RNA MEG3 regulates CSE-induced apoptosis and inflammation via regulating miR-218 in 16HBE cells. Biochem Biophys Res Commun 2019; 521:368-374. [PMID: 31668807 DOI: 10.1016/j.bbrc.2019.10.135] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 10/18/2019] [Indexed: 12/17/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a prevalent disease worldwide, mainly caused by cigarette smoking. Maternally expressed gene 3 (MEG3) functions as the lncRNA and is upregulated in COPD patients and human bronchial epithelial cells after fine particulate matter (PM2.5) treatment. However, the molecular mechanism of MEG3 in COPD remains unknown. The expression of MEG3 and miR-218 in COPD tissues and cigarette smoke extract (CSE)-treated 16HBE cells was detected by RT-qPCR. The effects of MEG3 and miR-218 on proliferation and apoptosis in (CSE)-treated 16HBE cells were analyzed by CCK-8 and flow cytometry assay, respectively. The protein levels of inflammatory cytokines (IL-1β IL-6 and TNF-α) were detected in 16HBE cells by ELISA. MEG3 and miR-218 binding interaction was predicted by LncBase Predicted v.2 and further confirmed by dual luciferase reporter assay and RNA Immunoprecipitation (RIP) assay. MEG3 was upregulated in COPD tissues and inversely related to FEV1%. MEG3 was upregulated in (CSE)-treated 16HBE cells, and knockdown of MEG3 mitigated CSE-repressed proliferation and CSE-triggered apoptosis or inflammation. MiR-218 was demonstrated as a target miRNA of MEG3. MiR-218 was downregulated in COPD tissues and (CSE)-treated or MEG3 overexpressed 16HBE cells. MiR-218 overexpression attenuated CSE-blocked proliferation and CSE-induced apoptosis or inflammation. Deficiency of MEG3 counteracted CSE-blocked proliferation CSE-induced apoptotic rate and inflammatory cytokine (IL-1β IL-6 and TNF-α) levels, while introduction of anti-miR-218 reversed these effects. MEG3 regulated CSE-inhibited proliferation and CSE-induced apoptosis or inflammation by targeting miR-218, providing a possible therapeutic target for treatment of CSE-induced COPD.
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Affiliation(s)
- Beibei Song
- Department of Respiratory and Critical Care Medicine, The Second Hosptial of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Liyun Ye
- Department of Respiratory and Critical Care Medicine, The Second Hosptial of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Siyu Wu
- Department of Respiratory and Critical Care Medicine, The Second Hosptial of Hebei Medical University, Shijiazhuang, Hebei, China.
| | - Zeng Jing
- Department of Pharmacy, The Fourth Hospital of Shijiazhuang, Shijiazhuang, Hebei, China
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Liu Z, Lu C, Zhao G, Han X, Dong K, Wang C, Guan JZ, Wang Z. Downregulation of miR-218 by nicotine promotes cell proliferation through targeting CDK6 in non-small cell lung cancer. J Cell Biochem 2019; 120:18370-18377. [PMID: 31190333 DOI: 10.1002/jcb.29148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 05/06/2019] [Accepted: 05/07/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Nicotine, an important component of tobacco, is a major risk factor of lung cancer, but the mechanism through which nicotine promotes lung cancer development remains unclear. METHODS Eighty patients with lung cancer were enrolled in this study, 34 of whom did not smoke and the others did. The expression of miR-218 and CDK6 messenger RNA (mRNA) was measured using quantitative reverse transcription polymerase chain reaction (qRT-PCR). A luciferase reporter system was used to identify the direct target of miR-218. The protein expression of CDK6 was analyzed by using Western blotting. Cell proliferation was analyzed using an approach of calculation of cell number under a microscope. RESULTS Nicotine decreased miR-218 expression in non-small cell lung cancer (NSCLC) cells and promoted proliferation of NSCLC cells. Smoking patients with NSCLC had lower expression of miR-218 in tumor compared with NSCLC patients who did not smoke. We found that miR-218 directly targeted the CDK6 mRNA 3'untranslated region and inhibited its expression in NSCLC cells and also observed a negative correlation between the expression of miR-218 and CDK6 mRNA in lung cancer tissues. Furthermore, miR-218- or nicotine-induced proliferative effects of NSCLC cells were rescued by the recovery of the expression level of CDK6. CONCLUSION Nicotine promotes proliferation of NSCLC cells through regulating the miR-218/CDK6 axis, which may be a potential therapeutic target for lung cancer.
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Affiliation(s)
- Zhen Liu
- The Eighth Medical Center, Chinese PLA General Hospital (The 309th Hospital of PLA), Beijing, China
| | - Cuiling Lu
- The Eighth Medical Center, Chinese PLA General Hospital (The 309th Hospital of PLA), Beijing, China
| | - Guanren Zhao
- The Eighth Medical Center, Chinese PLA General Hospital (The 309th Hospital of PLA), Beijing, China
| | - Xue Han
- The Eighth Medical Center, Chinese PLA General Hospital (The 309th Hospital of PLA), Beijing, China
| | - Kaisheng Dong
- The Eighth Medical Center, Chinese PLA General Hospital (The 309th Hospital of PLA), Beijing, China
| | - Chuanhai Wang
- Department of Clinical Liboratory, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Jing-Zhi Guan
- The Eighth Medical Center, Chinese PLA General Hospital (The 309th Hospital of PLA), Beijing, China
| | - Zhongyuan Wang
- The Eighth Medical Center, Chinese PLA General Hospital (The 309th Hospital of PLA), Beijing, China
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40
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Li M, Guo Q, Cai H, Wang H, Ma Z, Zhang X. miR-218 regulates diabetic nephropathy via targeting IKK-β and modulating NK-κB-mediated inflammation. J Cell Physiol 2019; 235:3362-3371. [PMID: 31549412 DOI: 10.1002/jcp.29224] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 09/03/2019] [Indexed: 01/03/2023]
Abstract
Diabetic nephropathy (DN) is a common clinically relevant complication of diabetes that is associated with damage to the capillaries, yet the etiology of this condition remains unclear. Nuclear factor-kappa B (NF-κB) activation is known to be associated with DN-related inflammation and disease progression. Recent work indicated that microRNAs are diagnostic biomarkers of DN progression associated with inflammation in the progression of DN. miR-218 is known to play key regulatory roles in certain cancers in humans, while its influence on DN pathology remains uncertain. The present study, therefore, sought to assess how miR-218 influences the progression of disease in both a rat streptozotocin-induced model of DN and as well as an in vitro model system in which mouse podocytes were stimulated with high glucose levels. We found miR-218 to be markedly downregulated in both model systems relative to appropriate controls, and this downregulation was associated with IKK-β upregulation. In DN rat model, overexpressing miR-218 was sufficient to reduce renal injury. We further determined that podocyte proliferation was markedly impaired by glucose treatment, leading to the apoptotic death of these cells, and miR-218 mimics were able to reduce these phenotypes. Overexpressing miR-218 also significantly dampened inflammatory responses in this model system, as evidenced by reduced tumor necrosis factor-α, interleukin-6 (IL-6), IL-1β, and MCP-1 levels. We then confirmed that miR-218 targeting the messenger RNA encoding IKK-β using a dual-luciferase reporter assay. Together, our results provide clear evidence that miR-218 regulate NF-κB-mediated inflammation, which is central to DN progression.
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Affiliation(s)
- Mo Li
- Department of Endocrinology, Second Hospital of Jilin University, Changchun, China
| | - Qiushi Guo
- Department of Pharmacy, The Second Part of First Hospital, Jilin University, Changchun, China
| | - Hanqing Cai
- Department of Endocrinology, Second Hospital of Jilin University, Changchun, China
| | - Haiyang Wang
- Department of Endocrinology, Second Hospital of Jilin University, Changchun, China
| | - Zhiming Ma
- Department of Gastrointestinal Nutrition and Hernia Surgery, Second Hospital of Jilin University, Changchun, China
| | - Xuan Zhang
- Department of Nephropathy, Second Hospital of Jilin University, Changchun, China
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Yu M, Xu B, Yang H, Xue S, Zhang R, Zhang H, Ying X, Dai Z. MicroRNA-218 regulates the chemo-sensitivity of cervical cancer cells through targeting survivin. Cancer Manag Res 2019; 11:6511-6519. [PMID: 31372052 PMCID: PMC6636183 DOI: 10.2147/cmar.s199659] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 04/10/2019] [Indexed: 12/24/2022] Open
Abstract
Background: Cervical cancer is one of the most lethal malignancies among women in the world. Every year about 311,365 women die because of cervical cancer. Chemo-resistance is the main reason of the lethal malignancies, and the mechanism of chemo-resistance in cervical cancer still remains largely elusive. Purpose: Previous studies reported that microRNAs played important biological roles in the chemo-resistance in many types of cancers, in the present study we tried to investigate the biological roles of microRNA-218 in chemo-resistance in cervical cancer cells. Results: Real-time PCR results indicated microRNA-218 was downregulated in cisplatin-resistant HeLa/DDP and SiHa/DDP cells compared with the mock HeLa and SiHa cells. CCK-8 assay results showed upregulation of microRNA-218 enhanced the cisplatin sensitivity of cervical cancer cells; while downregulation of microRNA-218 decreased the cisplatin sensitivity of cervical cancer cells. Dual-luciferase assay indicated survivin was a direct target of microRNA-218. Western blotting and PCR results indicated the expression of survivin in HeLa/DDP and SiHa/DDP cells was significantly increased compared with HeLa and SiHa cells. Further study indicated induction of microRNA-218 decreased the expression of survivin while inhibition of microRNA-218 increased the expression of survivin in cervical cancer cells. Cell apoptosis results indicated induction of microRNA-218 induced the cell apoptosis in cervical cancer cells. Conclusion: Our data revealed microRNA-218 enhanced the cisplatin sensitivity in cervical cancer cells through regulation of cell growth and cell apoptosis, which could potentially benefit to the cervical cancer treatment in the future.
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Affiliation(s)
- Minmin Yu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China.,Department of Obstetrics and Gynecology, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing 210003, People's Republic of China
| | - Baozhen Xu
- Department of Obstetrics and Gynecology, Nanjing Lishui People's Hospital, Nanjing 211200, People's Republic of China
| | - Hui Yang
- Department of Obstetrics and Gynecology, Huaian Maternal and Child Health Care Hospital, Huaian 223002, People's Republic of China
| | - Songlin Xue
- Department of Obstetrics and Gynecology, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing 210003, People's Republic of China
| | - Rong Zhang
- Department of Obstetrics and Gynecology, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing 210003, People's Republic of China
| | - Hongmei Zhang
- Department of Clinical Research Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing 210003, People's Republic of China
| | - Xiaoyan Ying
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
| | - Zhiqin Dai
- Department of Gynecologic Oncology, Jiangsu Cancer Hospital, Nanjing 210009, People's Republic of China
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Yao C, Li H, Zhang W. Triptolide inhibits benign prostatic epithelium viability and migration and induces apoptosis via upregulation of microRNA-218. Int J Immunopathol Pharmacol 2019; 32:2058738418812349. [PMID: 30453799 PMCID: PMC6247479 DOI: 10.1177/2058738418812349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Benign prostatic hypertrophy (BPH) has become a troublesome disease for elder
men. Triptolide (TPL) has been reported to be a potential anticancer agent.
However, the potential effects of TPL on BPH have not been shown out. BPH-1
cells were treated with different concentrations of TPL and/or transfected with
microRNA-218 (miR-218) inhibitor, pc-survivin, sh-survivin, or their
corresponding controls (NC). Thereafter, cell viability was determined by CCK-8
assay. Cell migration was accessed by modified two-chamber migration assay. Cell
apoptosis was checked by propidium iodide (PI) and fluorescein isothiocyanate
(FITC)-conjugated Annexin V staining. In addition, messenger RNA (mRNA) and
protein levels were detected using quantitative real-time polymerase chain
reaction (qRT-PCR) and western blot analysis, respectively. BPH-1 cell viability
and migration were significantly decreased, while cell apoptosis and expression
of miR-218 were statistically enhanced by TPL (P < 0.05 or
P < 0.01). However, downregulation of miR-218 increased
cell viability and migration, while decreased cell apoptosis compared with the
negative control group (P < 0.05 or
P < 0.01). Furthermore, the expression of cell cycle–related
proteins and cell apoptosis–related proteins were also led to the opposite
results with NC. In addition, we found that miR-218 negatively regulated the
expression of survivin (P < 0.01) and suppression of
survivin significantly enhanced cell apoptosis (P < 0.01).
Moreover, the results demonstrated that TPL could inactivate mammalian target of
rapamycin (mTOR) pathway, while inhibition of miR-218 alleviated the effects.
TPL inhibits viability and migration of BPH-1 cells and induces cell apoptosis
and also inactivates mTOR signal pathway via upregulation of miR-218. This study
provides evidence for the further studies representing triptolide as a potential
agent in the treatment of human BPH.
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Affiliation(s)
- Changlei Yao
- 1 Department of Urinary Surgery, People's Hospital of Rizhao, Rizhao, China
| | - Hongfa Li
- 1 Department of Urinary Surgery, People's Hospital of Rizhao, Rizhao, China
| | - Weitao Zhang
- 2 Department of Urinary Surgery, Affiliated Hospital of Taishan Medical University, Taian, China
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Guo J, Zeng X, Miao J, Liu C, Wei F, Liu D, Zheng Z, Ting K, Wang C, Liu Y. MiRNA-218 regulates osteoclast differentiation and inflammation response in periodontitis rats through Mmp9. Cell Microbiol 2019; 21:e12979. [PMID: 30444938 DOI: 10.1111/cmi.12979] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/06/2018] [Accepted: 11/01/2018] [Indexed: 01/11/2023]
Abstract
Periodontitis is a multiple infection and inflammatory disease featured by connective tissue homeostasis loss, periodontal inflammation, and alveolar bone resorption. MicroRNAs (miRNAs) are involved in the mediation of a large scale of pathological processes. Here, we show that miRNA-218 provides protective effect on periodontitis via regulation of matrix metalloproteinase-9 (Mmp9). This pathway is aberrant in periodontium from rats with periodontitis and human periodontal ligament progenitor cells stimulated by lipopolysaccharide, with downregulation of miR-218 and higher levels of Mmp9 compared with periodontium from healthy rats and cells without stimulation. Overexpression of miR-218 can suppress the degradation of Collagen Types I and IV and dentin sialoprotein (DSP), attenuate osteoclast formation, and inhibit the secretion of proinflammatory cytokines. On the other hand, overexpression of Mmp9 promotes the degradation of Collagen Types I and IV and DSP as well as RANKL-induced osteoclast formation and elevates inflammatory factors levels. Furthermore, the inhibitory effect of miR-218 was prevented by rescuing the Mmp9 expression. In addition, we also have showed that miR-218 was able to attenuate bone resorption and inflammation in a periodontitis rat model. Collectively, our findings therefore suggest that miR-218 acts as a protective role in periodontitis through the regulation of Mmp9.
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Affiliation(s)
- Jie Guo
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Xuemin Zeng
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Jie Miao
- Department of Stomatology, The 5th People's Hospital of Ji'nan, Jinan, China
| | - Chunpeng Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Fulan Wei
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Dongxu Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Zhong Zheng
- Department of Orthodontics, Division of Growth and Development, School of Dentistry, University of California, Los Angeles, CA, USA.,UCLA Division of Plastic and Reconstructive Surgery and Department of Orthopaedic Surgery and the Orthopaedic Hospital Research Center, University of California, Los Angeles, CA, USA
| | - Kang Ting
- Department of Orthodontics, Division of Growth and Development, School of Dentistry, University of California, Los Angeles, CA, USA.,UCLA Division of Plastic and Reconstructive Surgery and Department of Orthopaedic Surgery and the Orthopaedic Hospital Research Center, University of California, Los Angeles, CA, USA
| | - Chunling Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Yi Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
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Chen YJ, Wu PY, Gao RQ. [ MiR-218 inhibits HTR-8 cells migration and invasion by targeting SOX4]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2017; 33:169-73. [PMID: 29931926 DOI: 10.12047/j.cjap.5453.2017.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To verify whether miR-218 could inhibit human trophoblastic cell (HTR-8 cells) migration and invasion by target-ing sex determining region Y-box 4(SOX4). METHODS The serum samples were collected from 46 hypertensive disorder complicating pregnan-cy (HDCP) and 50 normal pregnant women. RT-PCR was used to test the expression of miR-218 in the serum. In vitro, MiR-218 was trans-fe cted into HTR-8 cells. The HTR-8 cells were divided into three groups:normal control group, mimic control and miR-218 mimic group. The migratory and invasion ability of HTR-8 cells was tested, and the expressions of matrix metalloproteinase-2(MMP-2), MMP-9 and Sox4 were also investigated in the cells of each group. Luciferase assay was used to confirme whether Sox4-3'-UTR was the target gene of miR-218. RESULTS The expression of miR-218 was decreased in the serum of HDCP patients compared with the normal pregnant woman(P < 0.01). In vit-ro, compared with the control group, the invasion and migration ability of HTR-8 cells and the expression of MMP-2 MMP-9 and SOX4 were decreased in the miR-218 group (P < 0.01); The Luciferase activity of the SOX4-3'-UTR plasmid was significantly suppressed by miR-218 (P < 0.01); Over expression of SOX4 could reverse the effect of miR-218 on HTR-8 cells(P < 0.01). CONCLUSIONS The expression of miR-218 decreases in the serum of HDPC patients and miR-218 inhibits HTR-8 cells invasion by targeting SOX4-3'-UTR.
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Wu Y, Tian S, Chen Y, Ji M, Qu Y, Hou P. miR-218 inhibits gastric tumorigenesis through regulating Bmi-1/Akt signaling pathway. Pathol Res Pract 2018; 215:243-250. [PMID: 30420101 DOI: 10.1016/j.prp.2018.10.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/14/2018] [Accepted: 10/26/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Previous studies indicated that miR-218 was deregulated in gastric cancer patients and correlated with tumor invasion and prognosis. The aim of this study was to clarify the effect of miR-218 on the malignant behavior of gastric cancer and its role in regulating Bmi-1/Akt signaling pathway. MATERIALS AND METHODS We used miR-218 mimic to transfect gastric cancer cell lines AGS and SGC-7901, and the overexpression efficiency was validated using qRT-PCR assay. MTT assay and Transwell chamber system were performed to detect the effect of miR-218 on cell proliferation, invasion and migration on gastric cancer. Western blot and qRT-PCR assay was used to test the role of miR-218 in regulating Bmi-1/Akt signaling pathway. RESULTS As shown in our research, ectopic expression of miR-218 in gastric cancer cells inhibits the proliferation, invasion and migration of gastric cancer cells. In addition, miR-218 re-expression inhibits the expression of Bmi-1 and its downstream target p-Akt473, as well as MMPs and EMT process. CONCLUSIONS miR-218 inhibits the proliferation, invasion and migration of gastric cancer cells through modulating EMT process and the expression of MMPs via Bmi-1/Akt signaling pathway.
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Affiliation(s)
- Yongxing Wu
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Sijia Tian
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Yijun Chen
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Meiju Ji
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Yiping Qu
- Department of Radio-Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China.
| | - Peng Hou
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China.
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Han M, Chen L, Wang Y. miR-218 overexpression suppresses tumorigenesis of papillary thyroid cancer via inactivation of PTEN/PI3K/AKT pathway by targeting Runx2. Onco Targets Ther 2018; 11:6305-6316. [PMID: 30319270 PMCID: PMC6167989 DOI: 10.2147/ott.s172152] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background It was previously reported that downregulation of miR-218 promoted thyroid cancer cell invasion, migration, and proliferation. However, the biological functions of miR-218 and its possible regulatory mechanisms in papillary thyroid cancer (PTC) cells are still elusive. Materials and methods The expression levels of miR-218 and Runx2 in PTC tissues and cells were determined by quantitative real-time PCR (qRT-PCR) and Western blot. The effects of miR-218 overexpression on cell viability, invasion, apoptosis, and PTEN/PI3K/AKT pathway in PTC cells were evaluated by cell counting kit-8 assay, Transwell invasion assay, flow cytometry assay, and Western blot, respectively. Luciferase reporter assay and qRT-PCR were performed to identify the target of miR-218. Xenograft tumor experiment was performed to confirm the biological roles of miR-218 and its potential mechanisms in vivo. Results miR-218 expression was downregulated and Runx2 expression was upregulated in PTC tissues and cells. Overexpression of miR-218 suppressed viability and invasion, and induced apoptosis of PTC cells in vitro, while Runx2 overexpression greatly abolished these effects. miR-218 overexpression inactivated the PTEN/PI3K/AKT pathway, which was abated by Runx2 upregulation. Additionally, Runx2 was validated to be a direct target of miR-218. Moreover, enforced expression of miR-218 inhibited tumor growth and Runx2 expression, and blocked PTEN/PI3K/AKT pathway in vivo. Conclusion miR-218 overexpression suppresses the tumorigenesis of PTC via downregulating PTEN/PI3K/AKT pathway by targeting Runx2, which indicates that miR-218 may be a potential therapeutic target for human PTC.
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Affiliation(s)
- Mingkun Han
- Department of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China,
| | - Liwei Chen
- Department of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China,
| | - Yang Wang
- Department of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China,
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Zhang Z, Jiang H, Wang Y, Shi M. Heparan sulfate D-glucosamine 3-O-sulfotransferase 3B1 is a novel regulator of transforming growth factor-beta-mediated epithelial-to-mesenchymal transition and regulated by miR-218 in nonsmall cell lung cancer. J Cancer Res Ther 2018. [PMID: 29516954 DOI: 10.4103/jcrt.jcrt_659_17] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Due to high metastasis and recurrence rate. Recent studies indicated that epithelial-to-mesenchymal transition (EMT) was involved in the progression and metastasis in cancer. Some reports also indicate that HS3ST3B1 played a role in angiogenesis and the proliferation of cancer cells. In this study, we aim to investigate its role in non-small cell lung cancer (NSCLC) . Materials and Methods All cell lines were purchased from ATCC and cultured in our central lab. RT-PCR was performed to study the expession of HS3ST3B1 in tumors and matched normal tissues. Western-blot was used to investigate the expession of HS3ST3B1 in cell lines. We also used luciferase report system to confirm the regulation of HS3ST3B1 by miR-218 in cells. Results In this study, we found that HS3ST3B1 was significantly upregulated in NSCLC tissues compared with matched normal tissues (P = 0.02). Its expression was also up-regulated in mesenchymal phenotype of NSCLC cell lines compared with epithelial phenotype (P < 0.05). When TGF-β was applied to induce the epithelial phenotype to mesenchymal phenotype, it was upregulated compared with previous epithelial cell lines. When HS3ST3B1 was knocked down by specific small interfering RNA in the mesenchymal phenotype, mesenchymal phenotype was transformed to epithelial phenotype. Moreover, we also found that it could be targeted by miR-218 in NSCLC. Conclusion These findings indicate that HS3ST3B1 is a novel regulator of TGF-beta-mediated EMT and is regulated by miR-218 in NSCLC.
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Affiliation(s)
- Zengli Zhang
- Department of Respiratory Diseases, The Second Affiliated Hospital of Soochow University, Suzhou, PR China
| | - Hanyi Jiang
- Department of Respiratory Medicine, Nanjing Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, PR China
| | - Yongsheng Wang
- Department of Respiratory Medicine, Nanjing Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing, PR China
| | - Minhua Shi
- Department of Respiratory Diseases, The Second Affiliated Hospital of Soochow University, Suzhou, PR China
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Iwamoto N, Fukui S, Takatani A, Shimizu T, Umeda M, Nishino A, Igawa T, Koga T, Kawashiri SY, Ichinose K, Tmai M, Nakamura H, Origuchi T, Chiba K, Osaki M, Jüngel A, Gay S, Kawakami A. Osteogenic differentiation of fibroblast-like synovial cells in rheumatoid arthritis is induced by microRNA-218 through a ROBO/Slit pathway. Arthritis Res Ther 2018; 20:189. [PMID: 30157923 PMCID: PMC6116572 DOI: 10.1186/s13075-018-1703-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 08/16/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Fibroblast-like synovial cells (FLS) have multilineage differentiation potential including osteoblasts. We aimed to investigate the role of microRNAs during the osteogenic differentiation of rheumatoid arthritis (RA)-FLS. METHODS RA-FLS were differentiated in osteogenic medium for 21 days. Osteogenic differentiation was evaluated by alkaline phosphatase (ALP) staining and Alizarin Red staining. MicroRNA (miRNA) array analysis was performed to investigate the differentially expressed miRNAs during osteogenic differentiation. Expression of miR-218-5p (miR-218) during the osteogenic differentiation was determined by quantitative real-time PCR. Transfections with an miR-218 precursor and inhibitor were used to confirm the targets of miR-218 and to analyze the ability of miR-218 to induce osteogenic differentiation. Secreted Dickkopf-1 (DKK1) from FLS transfected with miR-218 precursor/inhibitor or roundabout 1 (ROBO1) knockdown FLS established using ROBO1-small interfering RNA (siRNA) were measured by ELISA. RESULTS The miRNA array revealed that 12 miRNAs were upregulated and 24 miRNAs were downregulated after osteogenic differentiation. We observed that the level of miR-218 rose in the early phase of osteogenic differentiation and then decreased. Pro-inflammatory cytokines modified the expression of miR-218. The induction of miR-218 in RA-FLS decreased ROBO1 expression, and promoted osteogenic differentiation. Both the overexpression of miR-218 and the knockdown of ROBO1 in RA-FLS decreased DKK1 secretion. CONCLUSION We identified miR-218 as a crucial inducer of the osteogenic differentiation of RA-FLS. MiR-218 modulates the osteogenic differentiation of RA-FLS through the ROBO1/DKK-1 axis. The induction of the osteogenic differentiation of proliferating RA-FLS through the provision of miR-218 into RA-FLS or by boosting the cellular reservoir of miR-218 might thus become a therapeutic strategy for RA.
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Affiliation(s)
- Naoki Iwamoto
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Shoichi Fukui
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Ayuko Takatani
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Toshimasa Shimizu
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Masataka Umeda
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
- Medical Education Development Center, Nagasaki University School Hospital, Nagasaki, Japan
| | - Ayako Nishino
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
- Center for Comprehensive Community Care Education, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takashi Igawa
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Tomohiro Koga
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
- Center for Bioinformatics and Molecular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shin-ya Kawashiri
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
- Departments of Community Medicine, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kunihiro Ichinose
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Mami Tmai
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Hideki Nakamura
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
| | - Tomoki Origuchi
- Department of Physical Therapy, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ko Chiba
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Makoto Osaki
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Astrid Jüngel
- Center of Experimental Rheumatology, University Hospital Zurich and University of Zurich, Schlieren, Zurich, Switzerland
| | - Steffen Gay
- Center of Experimental Rheumatology, University Hospital Zurich and University of Zurich, Schlieren, Zurich, Switzerland
| | - Atsushi Kawakami
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501 Japan
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Costantino S, Paneni F, Mitchell K, Mohammed SA, Hussain S, Gkolfos C, Berrino L, Volpe M, Schwarzwald C, Lüscher TF, Cosentino F. Hyperglycaemia-induced epigenetic changes drive persistent cardiac dysfunction via the adaptor p66 Shc. Int J Cardiol 2018; 268:179-86. [PMID: 30047409 DOI: 10.1016/j.ijcard.2018.04.082] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/19/2018] [Accepted: 04/18/2018] [Indexed: 01/13/2023]
Abstract
AIMS Hyperglycaemia-induced reactive oxygen species (ROS) are key mediators of cardiac dysfunction. Intensive glycaemic control (IGC) has failed to reduce risk of heart failure in patients with diabetes but the underlying mechanisms remain to be elucidated. The present study investigates whether epigenetic regulation of the pro-oxidant adaptor p66Shc contributes to persistent myocardial dysfunction despite IGC. METHODS AND RESULTS p66Shc expression was increased in the heart of diabetic mice, and 3-week IGC by slow-release insulin implants did not revert this phenomenon. Sustained p66Shc upregulation was associated with oxidative stress, myocardial inflammation and left ventricular dysfunction, as assessed by conventional and 2D speckle-tracking echocardiography. In vivo gene silencing of p66Shc, performed during IGC, inhibited ROS production and restored cardiac function. Furthermore, we show that dysregulation of methyltransferase DNMT3b and deacetylase SIRT1 causes CpG demethylation and histone 3 acetylation on p66Shc promoter, leading to persistent transcription of the adaptor. Altered DNMT3b/SIRT1 axis in the diabetic heart was explained by upregulation of miR-218 and miR-34a. Indeed, in human cardiomyocytes exposed to high glucose, inhibition of these miRNAs restored the expression of DNMT3b and SIRT1 and erased the adverse epigenetic signatures on p66Shc promoter. Consistently, reprogramming miR-218 and miR-34a attenuated persistent p66Shc expression and ROS generation. CONCLUSIONS In diabetic left ventricular dysfunction, a complex epigenetic mechanism linking miRNAs and chromatin modifying enzymes drives persistent p66Shc transcription and ROS generation. Our results set the stage for pharmacological targeting of epigenetic networks to alleviate the clinical burden of diabetic cardiomyopathy.
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Lun W, Wu X, Deng Q, Zhi F. MiR-218 regulates epithelial-mesenchymal transition and angiogenesis in colorectal cancer via targeting CTGF. Cancer Cell Int 2018; 18:83. [PMID: 29977158 PMCID: PMC5994014 DOI: 10.1186/s12935-018-0575-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 05/26/2018] [Indexed: 12/24/2022] Open
Abstract
Background Endothelial-to-mesenchymal transition (EMT) and angiogenesis play important roles in colorectal cancer (CRC) development. Connective tissue growth factor (CTGF) has been reported to promote several kinds of cancer progression and miR-218 has been identified as a tumor suppressor miRNA. However, little is known about the function of miR-218 in CRC. Here we investigated the effects of miR-218 on EMT and angiogenesis process in CRC cells. As well, the relation between miR-218 and CTGF was identified. The mechanism of miR-218’s function was illustrated. Methods CRC cell lines were transfected with miR-218 mimics. Proliferation, migration and angiogenesis were identified by MTT assay, Transwell assay, colony formation assay and tube formation assay. Protein and mRNA expression levels of associated genes were measured by Western blotting and RT-PCR. Dual luciferase assay was used to determine the relation of miR-218 and CTGF. Results miR-218 was down-regulated in CRC cell lines and over expression of miR-218 could significantly inhibit EMT and angiogenesis. CTGF was a direct target of miR-218. Up regulation of CTGF level after miR-218 transfection could sufficiently rescue the suppression effects on EMT and angiogenesis. Conclusion miR-218 directly targets CTGF and inhibits its expression, leading to suppression on EMT and angiogenesis of CRC cells. miR-218 might be used as potential therapeutic strategy for CRC treatment.
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Affiliation(s)
- Weijian Lun
- Guangdong Provincial Key Laboratory of Gastroenterology, Inst. of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 China
| | - Xiongjian Wu
- Guangdong Provincial Key Laboratory of Gastroenterology, Inst. of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 China
| | - Qiliang Deng
- Guangdong Provincial Key Laboratory of Gastroenterology, Inst. of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 China
| | - Fachao Zhi
- Guangdong Provincial Key Laboratory of Gastroenterology, Inst. of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 China
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