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Scoyni F, Sitnikova V, Giudice L, Korhonen P, Trevisan DM, Hernandez de Sande A, Gomez-Budia M, Giniatullina R, Ugidos IF, Dhungana H, Pistono C, Korvenlaita N, Välimäki NN, Kangas SM, Hiltunen AE, Gribchenko E, Kaikkonen-Määttä MU, Koistinaho J, Ylä-Herttuala S, Hinttala R, Venø MT, Su J, Stoffel M, Schaefer A, Rajewsky N, Kjems J, LaPierre MP, Piwecka M, Jolkkonen J, Giniatullin R, Hansen TB, Malm T. ciRS-7 and miR-7 regulate ischemia-induced neuronal death via glutamatergic signaling. Cell Rep 2024; 43:113862. [PMID: 38446664 DOI: 10.1016/j.celrep.2024.113862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 11/30/2023] [Accepted: 02/08/2024] [Indexed: 03/08/2024] Open
Abstract
Brain functionality relies on finely tuned regulation of gene expression by networks of non-coding RNAs (ncRNAs) such as the one composed by the circular RNA ciRS-7 (also known as CDR1as), the microRNA miR-7, and the long ncRNA Cyrano. We describe ischemia-induced alterations in the ncRNA network both in vitro and in vivo and in transgenic mice lacking ciRS-7 or miR-7. Our data show that cortical neurons downregulate ciRS-7 and Cyrano and upregulate miR-7 expression during ischemia. Mice lacking ciRS-7 exhibit reduced lesion size and motor impairment, while the absence of miR-7 alone results in increased ischemia-induced neuronal death. Moreover, miR-7 levels in pyramidal excitatory neurons regulate neurite morphology and glutamatergic signaling, suggesting a potential molecular link to the in vivo phenotype. Our data reveal the role of ciRS-7 and miR-7 in modulating ischemic stroke outcome, shedding light on the pathophysiological function of intracellular ncRNA networks in the brain.
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Affiliation(s)
- Flavia Scoyni
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland.
| | - Valeriia Sitnikova
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Luca Giudice
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Paula Korhonen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Davide M Trevisan
- Department of Biosciences and Nutrition, Karolinska Institute, 17177 Stockholm, Sweden
| | | | - Mireia Gomez-Budia
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Raisa Giniatullina
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Irene F Ugidos
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Hiramani Dhungana
- Neuroscience Center, University of Helsinki, 00290 Helsinki, Finland
| | - Cristiana Pistono
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Nea Korvenlaita
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Nelli-Noora Välimäki
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | | | - Anniina E Hiltunen
- Medical Research Center Oulu and Research Unit of Clinical Medicine, University of Oulu and Oulu University Hospital, 90014 Oulu, Finland
| | - Emma Gribchenko
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Minna U Kaikkonen-Määttä
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Jari Koistinaho
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland; Neuroscience Center, University of Helsinki, 00290 Helsinki, Finland
| | - Seppo Ylä-Herttuala
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Reetta Hinttala
- Biocenter Oulu, University of Oulu, 90014 Oulu, Finland; Medical Research Center Oulu and Research Unit of Clinical Medicine, University of Oulu and Oulu University Hospital, 90014 Oulu, Finland
| | - Morten T Venø
- Omiics ApS, 8200 Aarhus, Denmark; Interdisciplinary Nanoscience Center, Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
| | - Junyi Su
- Interdisciplinary Nanoscience Center, Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
| | - Markus Stoffel
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zürich, Switzerland
| | - Anne Schaefer
- Departments of Neuroscience and Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029-6504, USA; Max Planck Institute, Biology of Ageing, 50931 Cologne, Germany
| | - Nikolaus Rajewsky
- Systems Biology of Gene Regulatory Elements, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin Institute for Medical Systems Biology (BIMSB), 10115 Berlin, Germany
| | - Jørgen Kjems
- Interdisciplinary Nanoscience Center, Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
| | - Mary P LaPierre
- Institute of Molecular Health Sciences, ETH Zurich, 8093 Zürich, Switzerland
| | - Monika Piwecka
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznan, Poland
| | - Jukka Jolkkonen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Rashid Giniatullin
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland
| | - Thomas B Hansen
- Interdisciplinary Nanoscience Center, Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark
| | - Tarja Malm
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70221 Kuopio, Finland.
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2
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Epp S, Chuah SM, Halasz M. Epigenetic Dysregulation in MYCN-Amplified Neuroblastoma. Int J Mol Sci 2023; 24:17085. [PMID: 38069407 PMCID: PMC10707345 DOI: 10.3390/ijms242317085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/18/2023] Open
Abstract
Neuroblastoma (NB), a childhood cancer arising from the neural crest, poses significant clinical challenges, particularly in cases featuring amplification of the MYCN oncogene. Epigenetic factors play a pivotal role in normal neural crest and NB development, influencing gene expression patterns critical for tumorigenesis. This review delves into the multifaceted interplay between MYCN and known epigenetic modifications during NB genesis, shedding light on the intricate regulatory networks underlying the disease. We provide an extensive survey of known epigenetic mechanisms, encompassing DNA methylation, histone modifications, non-coding RNAs, super-enhancers (SEs), bromodomains (BET), and chromatin modifiers in MYCN-amplified (MNA) NB. These epigenetic changes collectively contribute to the dysregulated gene expression landscape observed in MNA NB. Furthermore, we review emerging therapeutic strategies targeting epigenetic regulators, including histone deacetylase inhibitors (HDACi), histone methyltransferase inhibitors (HMTi), and DNA methyltransferase inhibitors (DNMTi). We also discuss and summarize current drugs in preclinical and clinical trials, offering insights into their potential for improving outcomes for MNA NB patients.
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Affiliation(s)
- Soraya Epp
- Systems Biology Ireland, UCD School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (S.E.)
| | - Shin Mei Chuah
- Systems Biology Ireland, UCD School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (S.E.)
| | - Melinda Halasz
- Systems Biology Ireland, UCD School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (S.E.)
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, D04 V1W8 Dublin, Ireland
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3
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Freire NH, Jaeger MDC, de Farias CB, Nör C, Souza BK, Gregianin L, Brunetto AT, Roesler R. Targeting the epigenome of cancer stem cells in pediatric nervous system tumors. Mol Cell Biochem 2023; 478:2241-2255. [PMID: 36637615 DOI: 10.1007/s11010-022-04655-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 12/30/2022] [Indexed: 01/14/2023]
Abstract
Medulloblastoma, neuroblastoma, and pediatric glioma account for almost 30% of all cases of pediatric cancers. Recent evidence indicates that pediatric nervous system tumors originate from stem or progenitor cells and present a subpopulation of cells with highly tumorigenic and stem cell-like features. These cancer stem cells play a role in initiation, progression, and resistance to treatment of pediatric nervous system tumors. Histone modification, DNA methylation, chromatin remodeling, and microRNA regulation display a range of regulatory activities involved in cancer origin and progression, and cellular identity, especially those associated with stem cell features, such as self-renewal and pluripotent differentiation potential. Here, we review the contribution of different epigenetic mechanisms in pediatric nervous system tumor cancer stem cells. The choice between a differentiated and undifferentiated state can be modulated by alterations in the epigenome through the regulation of stemness genes such as CD133, SOX2, and BMI1 and the activation neuronal of differentiation markers, RBFOX3, GFAP, and S100B. Additionally, we highlighted the stage of development of epigenetic drugs and the clinical benefits and efficacy of epigenetic modulators in pediatric nervous system tumors.
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Affiliation(s)
- Natália Hogetop Freire
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
- Graduate Program in Cellular and Molecular Biology, Center of Biotechnology, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500 (Setor IV - Campus do Vale), Porto Alegre, 91501-970, Brazil.
| | - Mariane da Cunha Jaeger
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Children's Cancer Institute, Porto Alegre, RS, Brazil
| | - Caroline Brunetto de Farias
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Children's Cancer Institute, Porto Alegre, RS, Brazil
| | - Carolina Nör
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Developmental and Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
| | | | - Lauro Gregianin
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Department of Pediatrics, School of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Pediatric Oncology Service, Clinical Hospital, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - André Tesainer Brunetto
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Children's Cancer Institute, Porto Alegre, RS, Brazil
| | - Rafael Roesler
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Graduate Program in Cellular and Molecular Biology, Center of Biotechnology, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500 (Setor IV - Campus do Vale), Porto Alegre, 91501-970, Brazil
- Department of Pharmacology, Institute for Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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Anoushirvani AA, Jafarian Yazdi A, Amirabadi S, Asouri SA, Shafabakhsh R, Sheida A, Hosseini Khabr MS, Jafari A, Tamehri Zadeh SS, Hamblin MR, Kalantari L, Talaei Zavareh SA, Mirzaei H. Role of non-coding RNAs in neuroblastoma. Cancer Gene Ther 2023; 30:1190-1208. [PMID: 37217790 DOI: 10.1038/s41417-023-00623-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/25/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023]
Abstract
Neuroblastoma is known as the most prevalent extracranial malignancy in childhood with a neural crest origin. It has been widely accepted that non-coding RNAs (ncRNAs) play important roles in many types of cancer, including glioma and gastrointestinal cancers. They may regulate the cancer gene network. According to recent sequencing and profiling studies, ncRNAs genes are deregulated in human cancers via deletion, amplification, abnormal epigenetic, or transcriptional regulation. Disturbances in the expression of ncRNAs may act either as oncogenes or as anti-tumor suppressor genes, and can lead to the induction of cancer hallmarks. ncRNAs can be secreted from tumor cells inside exosomes, where they can be transferred to other cells to affect their function. However, these topics still need more study to clarify their exact roles, so the present review addresses different roles and functions of ncRNAs in neuroblastoma.
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Affiliation(s)
- Ali Arash Anoushirvani
- Department of Internal Medicine, Firoozgar Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Sanaz Amirabadi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Sahar Ahmadi Asouri
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University, Kashan, Iran
| | - Rana Shafabakhsh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University, Kashan, Iran
| | - Amirhossein Sheida
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Maryam Sadat Hosseini Khabr
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Ameneh Jafari
- ATMP Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, P.O. BOX: 15179/64311, Tehran, Iran
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
| | - Leila Kalantari
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
| | | | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University, Kashan, Iran.
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Mohammadi P, Nadri S, Abdanipour A, Mortazavi Y. Microchip encapsulation and microRNA-7 overexpression of trabecular meshwork mesenchymal stem/stromal cells improve motor function after spinal cord injury. J Biomed Mater Res A 2023; 111:1482-1494. [PMID: 37042544 DOI: 10.1002/jbm.a.37549] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 03/24/2023] [Accepted: 04/04/2023] [Indexed: 04/13/2023]
Abstract
Manipulation of stem cells and microencapsulation through microfluidic chips has shown more promising results in treating complex conditions, such as spinal cord injury (SCI), than traditional treatments. This study aimed to investigate the potency of neural differentiation and its therapeutic role in SCI animal model of trabecular meshwork mesenchymal stem/stromal cells (TMMSCs) via miR-7 overexpression and microchip-encapsulated. TMMSCs are transduced with miR-7 via a lentiviral vector (TMMSCs-miR-7[+]) and encapsulated in alginate-reduced graphene oxide (alginate-rGO) hydrogel via a microfluidic chip. Neuronal differentiation of transduced cells in hydrogel (3D) and tissue cultures plate (2D) was assessed by expressing specific mRNAs and proteins. Further evaluation is being carried out through 3D and 2D TMMSCs-miR-7(+ and -) transplantation into the rat contusion SCI model. TMMSCs-miR-7(+) encapsulated in the microfluidic chip (miR-7-3D) increased nestin, β-tubulin III, and MAP-2 expression compared with 2D culture. Moreover, miR-7-3D could improve locomotor behavior in contusion SCI rats, decrease cavity size, and increase myelination. Our results revealed that miR-7 and alginate-rGO hydrogel were involved in the neuronal differentiation of TMMSCs in a time-dependent manner. In addition, the microfluidic-encapsulated miR-7 overexpression TMMSCs represented a better survival and integration of the transplanted cells and the repair of SCI. Collectively, the combination of miR-7 overexpression and encapsulation of TMMSCs in hydrogels may represent a promising new treatment for SCI.
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Affiliation(s)
- Parvin Mohammadi
- Student Research Committee, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Medical Biotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Samad Nadri
- Zanjan Metabolic Diseases Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Medical Nanotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
- Zanjan Pharmaceutical Nanotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Alireza Abdanipour
- Department of Anatomy, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Yousef Mortazavi
- Department of Medical Biotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
- Cancer Gene Therapy Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
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Zeng X, Bian W, Liu Z, Li J, Ren S, Zhang J, Zhang H, Tegeleqi B, He G, Guan M, Gao Z, Huang C, Liu J. Muscle-derived stem cell exosomes with overexpressed miR-214 promote the regeneration and repair of rat sciatic nerve after crush injury to activate the JAK2/STAT3 pathway by targeting PTEN. Front Mol Neurosci 2023; 16:1146329. [PMID: 37305554 PMCID: PMC10250677 DOI: 10.3389/fnmol.2023.1146329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/15/2023] [Indexed: 06/13/2023] Open
Abstract
Introduction This study aimed to investigate the effect of muscle-derived stem cell (MDSC) exosomes with overexpressed miR-214 on the regeneration and repair of rat sciatic nerve after crush injury and its molecular mechanism. Methods First, primary MDSCs, Schwann cells (SCs) and dorsal root ganglion (DRG) neurons were isolated and cultured, and the characteristics of MDSCs-derived exosomes were identified by molecular biology and immunohistochemistry. NC mimics and miR-214 mimics were transfected to obtain exo-NC and exo-miR-214. An in vitro co-culture system was established to determine the effect of exo-miR-214 on nerve regeneration. The restoration of sciatic nerve function of rats by exo-miR-214 was evaluated by walking track analysis. Immunofluorescence for NF and S100 was used to detect the regeneration of axon and myelin sheath in injured nerve. The Starbase database was used to analyze the downstream target genes of miR-214. QRT-PCR and dual luciferase reporter assays were used to validate the miR-214 and PTEN interaction relationship. And the expression of the JAK2/STAT3 pathway-related proteins in sciatic nerve tissues were detected by western blot. Results The above experiments showed that MDSCs-derived exosomes with overexpressed miR-214 was found to promote the proliferation and migration of SCs, increase the expression of neurotrophic factors, promote axon extension of DRG neurons and positively affect the recovery of nerve structure and function. In addition, PTEN was a target gene of miR-214. Exo-miR-214 can significantly inhibit the expression level of PTEN, increase the protein expression levels of p-JAK2 and p-STAT3 and the ratio of p-JAK2/JAK2 and p-STAT3/STAT3, also MDSCs-derived exosomes with overexpressed miR-214 can reduce the occurrence of denervated muscle atrophy. Conclusion In summary, the MDSCs-derived exosomes with overexpressed miR-214 is involved in peripheral nerve regeneration and repair in rats after sciatic nerve crush injury to activate the JAK2/ STAT3 pathway by targeting PTEN.
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MicroRNAs as prospective biomarkers, therapeutic targets and pharmaceuticals in neuroblastoma. Mol Biol Rep 2023; 50:1895-1912. [PMID: 36520359 DOI: 10.1007/s11033-022-08137-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 11/18/2022] [Indexed: 12/23/2022]
Abstract
Neuroblastomas, the most prevalent malignant solid neoplasms of childhood, originate from progenitor cells of the sympathetic nervous system. Their genetic causation is diverse and involves multiple molecular mechanisms. This review highlights multiple roles of microRNA in neuroblastoma pathogenesis and discusses the prospects of harnessing these important natural regulator molecules as biomarkers, therapeutic targets and pharmaceuticals in neuroblastoma.
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Role of MicroRNAs in the Development and Progression of the Four Medulloblastoma Subgroups. Cancers (Basel) 2021; 13:cancers13246323. [PMID: 34944941 PMCID: PMC8699467 DOI: 10.3390/cancers13246323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/21/2022] Open
Abstract
Medulloblastoma is the most frequent malignant brain tumour in children. Medulloblastoma originate during the embryonic stage. They are located in the cerebellum, which is the area of the central nervous system (CNS) responsible for controlling equilibrium and coordination of movements. In 2012, medulloblastoma were divided into four subgroups based on a genome-wide analysis of RNA expression. These subgroups are named Wingless, Sonic Hedgehog, Group 3 and Group 4. Each subgroup has a different cell of origin, prognosis, and response to therapies. Wingless and Sonic Hedgehog medulloblastoma are so named based on the main mutation originating these tumours. Group 3 and Group 4 have generic names because we do not know the key mutation driving these tumours. Gene expression at the post-transcriptional level is regulated by a group of small single-stranded non-coding RNAs. These microRNA (miRNAs or miRs) play a central role in several cellular functions such as cell differentiation and, therefore, any malfunction in this regulatory system leads to a variety of disorders such as cancer. The role of miRNAs in medulloblastoma is still a topic of intense clinical research; previous studies have mostly concentrated on the clinical entity of the single disease rather than in the four molecular subgroups. In this review, we summarize the latest discoveries on miRNAs in the four medulloblastoma subgroups.
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MicroRNA-214 in Health and Disease. Cells 2021; 10:cells10123274. [PMID: 34943783 PMCID: PMC8699121 DOI: 10.3390/cells10123274] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/16/2021] [Accepted: 11/20/2021] [Indexed: 12/24/2022] Open
Abstract
MicroRNAs (miRNAs) are endogenously expressed, non-coding RNA molecules that mediate the post-transcriptional repression and degradation of mRNAs by targeting their 3′ untranslated region (3′-UTR). Thousands of miRNAs have been identified since their first discovery in 1993, and miR-214 was first reported to promote apoptosis in HeLa cells. Presently, miR-214 is implicated in an extensive range of conditions such as cardiovascular diseases, cancers, bone formation and cell differentiation. MiR-214 has shown pleiotropic roles in contributing to the progression of diseases such as gastric and lung cancers but may also confer cardioprotection against excessive fibrosis and oxidative damage. These contrasting functions are achieved through the diverse cast of miR-214 targets. Through silencing or overexpressing miR-214, the detrimental effects can be attenuated, and the beneficial effects promoted in order to improve health outcomes. Therefore, discovering novel miR-214 targets and understanding how miR-214 is dysregulated in human diseases may eventually lead to miRNA-based therapies. MiR-214 has also shown promise as a diagnostic biomarker in identifying breast cancer and coronary artery disease. This review provides an up-to-date discussion of miR-214 literature by describing relevant roles in health and disease, areas of disagreement, and the future direction of the field.
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10
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Alcohol induced impairment/abnormalities in brain: Role of MicroRNAs. Neurotoxicology 2021; 87:11-23. [PMID: 34478768 DOI: 10.1016/j.neuro.2021.08.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 08/12/2021] [Accepted: 08/28/2021] [Indexed: 12/21/2022]
Abstract
Alcohol is a highly toxic substance and has teratogenic properties that can lead to a wide range of developmental disorders. Excessive use of alcohol can change the structural and functional aspects of developed brain and other organs. Which can further lead to significant health, social and economic implications in many countries of the world. Convincing evidence support the involvement of microRNAs (miRNAs) as important post-transcriptional regulators of gene expression in neurodevelopment and maintenance. They also show differential expression following an injury. MiRNAs are the special class of small non coding RNAs that can modify the gene by targeting the mRNA and fine tune the development of cells to organs. Numerous pieces of evidences have shown the relationship between miRNA, alcohol and brain damage. These studies also show how miRNA controls different cellular mechanisms involved in the development of alcohol use disorder. With the increasing number of research studies, the roles of miRNAs following alcohol-induced injury could help researchers to recognize alternative therapeutic methods to treat/cure alcohol-induced brain damage. The present review summarizes the available data and brings together the important miRNAs, that play a crucial role in alcohol-induced brain damage, which will help in better understanding complex mechanisms. Identifying these miRNAs will not only expand the current knowledge but can lead to the identification of better targets for the development of novel therapeutic interventions.
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Farina AR, Cappabianca LA, Zelli V, Sebastiano M, Mackay AR. Mechanisms involved in selecting and maintaining neuroblastoma cancer stem cell populations, and perspectives for therapeutic targeting. World J Stem Cells 2021; 13:685-736. [PMID: 34367474 PMCID: PMC8316860 DOI: 10.4252/wjsc.v13.i7.685] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/09/2021] [Accepted: 04/14/2021] [Indexed: 02/06/2023] Open
Abstract
Pediatric neuroblastomas (NBs) are heterogeneous, aggressive, therapy-resistant embryonal tumours that originate from cells of neural crest (NC) origin and in particular neuroblasts committed to the sympathoadrenal progenitor cell lineage. Therapeutic resistance, post-therapeutic relapse and subsequent metastatic NB progression are driven primarily by cancer stem cell (CSC)-like subpopulations, which through their self-renewing capacity, intermittent and slow cell cycles, drug-resistant and reversibly adaptive plastic phenotypes, represent the most important obstacle to improving therapeutic outcomes in unfavourable NBs. In this review, dedicated to NB CSCs and the prospects for their therapeutic eradication, we initiate with brief descriptions of the unique transient vertebrate embryonic NC structure and salient molecular protagonists involved NC induction, specification, epithelial to mesenchymal transition and migratory behaviour, in order to familiarise the reader with the embryonic cellular and molecular origins and background to NB. We follow this by introducing NB and the potential NC-derived stem/progenitor cell origins of NBs, before providing a comprehensive review of the salient molecules, signalling pathways, mechanisms, tumour microenvironmental and therapeutic conditions involved in promoting, selecting and maintaining NB CSC subpopulations, and that underpin their therapy-resistant, self-renewing metastatic behaviour. Finally, we review potential therapeutic strategies and future prospects for targeting and eradication of these bastions of NB therapeutic resistance, post-therapeutic relapse and metastatic progression.
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Affiliation(s)
- Antonietta Rosella Farina
- Department of Applied Clinical and Biotechnological Sciences, University of L'Aquila, L'Aquila 67100, AQ, Italy
| | - Lucia Annamaria Cappabianca
- Department of Applied Clinical and Biotechnological Sciences, University of L'Aquila, L'Aquila 67100, AQ, Italy
| | - Veronica Zelli
- Department of Applied Clinical and Biotechnological Sciences, University of L'Aquila, L'Aquila 67100, AQ, Italy
| | - Michela Sebastiano
- Department of Applied Clinical and Biotechnological Sciences, University of L'Aquila, L'Aquila 67100, AQ, Italy
| | - Andrew Reay Mackay
- Department of Applied Clinical and Biotechnological Sciences, University of L'Aquila, L'Aquila 67100, AQ, Italy.
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Ghibaudi M, Boido M, Green D, Signorino E, Berto GE, Pourshayesteh S, Singh A, Di Cunto F, Dalmay T, Vercelli A. miR-7b-3p Exerts a Dual Role After Spinal Cord Injury, by Supporting Plasticity and Neuroprotection at Cortical Level. Front Mol Biosci 2021; 8:618869. [PMID: 33869277 PMCID: PMC8044879 DOI: 10.3389/fmolb.2021.618869] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 03/04/2021] [Indexed: 11/13/2022] Open
Abstract
Spinal cord injury (SCI) affects 6 million people worldwide with no available treatment. Despite research advances, the inherent poor regeneration potential of the central nervous system remains a major hurdle. Small RNAs (sRNAs) 19-33 nucleotides in length are a set of non-coding RNA molecules that regulate gene expression and have emerged as key players in regulating cellular events occurring after SCI. Here we profiled a class of sRNA known as microRNAs (miRNAs) following SCI in the cortex where the cell bodies of corticospinal motor neurons are located. We identified miR-7b-3p as a candidate target given its significant upregulation after SCI in vivo and we screened by miRWalk PTM the genes predicted to be targets of miR-7b-3p (among which we identified Wipf2, a gene regulating neurite extension). Moreover, 16 genes, involved in neural regeneration and potential miR-7b-3p targets, were found to be downregulated in the cortex following SCI. We also analysed miR-7b-3p function during cortical neuron development in vitro: we observed that the overexpression of miR-7b-3p was important (1) to maintain neurons in a more immature and, likely, plastic neuronal developmental phase and (2) to contrast the apoptotic pathway; however, in normal conditions it did not affect the Wipf2 expression. On the contrary, the overexpression of miR-7b-3p upon in vitro oxidative stress condition (mimicking the SCI environment) significantly reduced the expression level of Wipf2, as observed in vivo, confirming it as a direct miR-7b-3p target. Overall, these data suggest a dual role of miR-7b-3p: (i) the induction of a more plastic neuronal condition/phase, possibly at the expense of the axon growth, (ii) the neuroprotective role exerted through the inhibition of the apoptotic cascade. Increasing the miR-7b-3p levels in case of SCI could reactivate in adult neurons silenced developmental programmes, supporting at the same time the survival of the axotomised neurons.
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Affiliation(s)
- Matilde Ghibaudi
- Department of Neuroscience “Rita Levi Montalcini,” Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
- Polymers and Biomaterials, Italian Institute of Technology, Genova, Italy
| | - Marina Boido
- Department of Neuroscience “Rita Levi Montalcini,” Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
| | - Darrell Green
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - Elena Signorino
- Department of Neuroscience “Rita Levi Montalcini,” Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
| | - Gaia Elena Berto
- Department of Neuroscience “Rita Levi Montalcini,” Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
| | - Soraya Pourshayesteh
- Department of Neuroscience “Rita Levi Montalcini,” Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
| | - Archana Singh
- School of Biological Sciences, University of East Anglia, Norwich, United Kingdom
| | - Ferdinando Di Cunto
- Department of Neuroscience “Rita Levi Montalcini,” Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
| | - Tamas Dalmay
- School of Biological Sciences, University of East Anglia, Norwich, United Kingdom
| | - Alessandro Vercelli
- Department of Neuroscience “Rita Levi Montalcini,” Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
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Korać P, Antica M, Matulić M. MiR-7 in Cancer Development. Biomedicines 2021; 9:325. [PMID: 33806891 PMCID: PMC8004586 DOI: 10.3390/biomedicines9030325] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRNAs) are short non-coding RNA involved in the regulation of specific mRNA translation. They participate in cellular signaling circuits and can act as oncogenes in tumor development, so-called oncomirs, as well as tumor suppressors. miR-7 is an ancient miRNA involved in the fine-tuning of several signaling pathways, acting mainly as tumor suppressor. Through downregulation of PI3K and MAPK pathways, its dominant role is the suppression of proliferation and survival, stimulation of apoptosis and inhibition of migration. Besides these functions, it has numerous additional roles in the differentiation process of different cell types, protection from stress and chromatin remodulation. One of the most investigated tissues is the brain, where its downregulation is linked with glioblastoma cell proliferation. Its deregulation is found also in other tumor types, such as in liver, lung and pancreas. In some types of lung and oral carcinoma, it can act as oncomir. miR-7 roles in cell fate determination and maintenance of cell homeostasis are still to be discovered, as well as the possibilities of its use as a specific biotherapeutic.
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Affiliation(s)
- Petra Korać
- Department of Biology, Division of Molecular Biology, Faculty of Science, University of Zagreb, Horvatovac 102, 10000 Zagreb, Croatia;
| | - Mariastefania Antica
- Division of Molecular Biology, Rudjer Bosković Institute, Bijenička 54, 10000 Zagreb, Croatia;
| | - Maja Matulić
- Department of Biology, Division of Molecular Biology, Faculty of Science, University of Zagreb, Horvatovac 102, 10000 Zagreb, Croatia;
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He JG, Zhou HY, Xue SG, Lu JJ, Xu JF, Zhou B, Hu ZL, Wu PF, Long LH, Ni L, Jin Y, Wang F, Chen JG. Transcription Factor TWIST1 Integrates Dendritic Remodeling and Chronic Stress to Promote Depressive-like Behaviors. Biol Psychiatry 2021; 89:615-626. [PMID: 33190845 DOI: 10.1016/j.biopsych.2020.09.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 08/20/2020] [Accepted: 09/01/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Deficiency in neuronal structural plasticity is involved in the development of major depressive disorder. TWIST1, a helix-loop-helix transcription factor that is essential for morphogenesis and organogenesis, is normally expressed at low levels in mature neurons. However, it is poorly understood what role TWIST1 plays in the brain and whether it is involved in the pathophysiology of depression. METHODS Depressive-like behaviors in C57BL/6J mice were developed by chronic social defeat stress. Genetic and pharmacological approaches were used to investigate the role of the TWIST1-miR-214-PPAR-δ signaling pathway in depressive-like behaviors. Molecular biological and morphological studies were performed to define the molecular mechanisms downstream of TWIST1. RESULTS The expression of TWIST1 was positively correlated with depressive behaviors in humans and mice. Chronic stress elevated TWIST1 expression in the medial prefrontal cortex of mice, which was reversed by fluoxetine treatment. While the overexpression of TWIST1 increased susceptibility to stress, the knockdown of TWIST1 prevented the defective morphogenesis of dendrites of pyramidal neurons in layer II/III of the medial prefrontal cortex and alleviated depressive-like behaviors. Mechanistically, this prodepressant property of TWIST1 was mediated, at least in part, through the repression of miR-214-PPAR-δ signaling and mitochondrial function, which was also mimicked by genetic and pharmacological inhibition of PPAR-δ. CONCLUSIONS These results suggest that TWIST1 in the medial prefrontal cortex mediates chronic stress-induced dendritic remodeling and facilitates the occurrence of depressive-like behavior, providing new information for developing drug targets for depression therapy.
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Affiliation(s)
- Jin-Gang He
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Hai-Yun Zhou
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Shi-Ge Xue
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Jia-Jing Lu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Jun-Feng Xu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Bin Zhou
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Zhuang-Li Hu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation of Hubei Province, Wuhan, People's Republic of China
| | - Peng-Fei Wu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation of Hubei Province, Wuhan, People's Republic of China
| | - Li-Hong Long
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation of Hubei Province, Wuhan, People's Republic of China
| | - Lan Ni
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - You Jin
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Fang Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation of Hubei Province, Wuhan, People's Republic of China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, People's Republic of China.
| | - Jian-Guo Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Research Center for Depression, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Laboratory of Neuropsychiatric Diseases, Institute of Brain Research, Huazhong University of Science and Technology, Wuhan, People's Republic of China; Key Laboratory for Drug Target Research and Pharmacodynamic Evaluation of Hubei Province, Wuhan, People's Republic of China; Key Laboratory of Neurological Diseases, Ministry of Education of China, Wuhan, People's Republic of China.
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15
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Gajda E, Grzanka M, Godlewska M, Gawel D. The Role of miRNA-7 in the Biology of Cancer and Modulation of Drug Resistance. Pharmaceuticals (Basel) 2021; 14:149. [PMID: 33673265 PMCID: PMC7918072 DOI: 10.3390/ph14020149] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs, miRs) are small non-coding RNA (ncRNA) molecules capable of regulating post-transcriptional gene expression. Imbalances in the miRNA network have been associated with the development of many pathological conditions and diseases, including cancer. Recently, miRNAs have also been linked to the phenomenon of multidrug resistance (MDR). MiR-7 is one of the extensively studied miRNAs and its role in cancer progression and MDR modulation has been highlighted. MiR-7 is engaged in multiple cellular pathways and acts as a tumor suppressor in the majority of human neoplasia. Its depletion limits the effectiveness of anti-cancer therapies, while its restoration sensitizes cells to the administered drugs. Therefore, miR-7 might be considered as a potential adjuvant agent, which can increase the efficiency of standard chemotherapeutics.
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Affiliation(s)
- Ewa Gajda
- Department of Biochemistry and Molecular Biology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland; (E.G.); (M.G.)
| | - Małgorzata Grzanka
- Department of Biochemistry and Molecular Biology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland; (E.G.); (M.G.)
| | - Marlena Godlewska
- Department of Biochemistry and Molecular Biology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland; (E.G.); (M.G.)
| | - Damian Gawel
- Department of Immunohematology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
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16
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Segaran RC, Chan LY, Wang H, Sethi G, Tang FR. Neuronal Development-Related miRNAs as Biomarkers for Alzheimer's Disease, Depression, Schizophrenia and Ionizing Radiation Exposure. Curr Med Chem 2021; 28:19-52. [PMID: 31965936 DOI: 10.2174/0929867327666200121122910] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/30/2019] [Accepted: 10/22/2019] [Indexed: 11/22/2022]
Abstract
Radiation exposure may induce Alzheimer's disease (AD), depression or schizophrenia. A number of experimental and clinical studies suggest the involvement of miRNA in the development of these diseases, and also in the neuropathological changes after brain radiation exposure. The current literature review indicated the involvement of 65 miRNAs in neuronal development in the brain. In the brain tissue, blood, or cerebral spinal fluid (CSF), 11, 55, or 28 miRNAs are involved in the development of AD respectively, 89, 50, 19 miRNAs in depression, and 102, 35, 8 miRNAs in schizophrenia. We compared miRNAs regulating neuronal development to those involved in the genesis of AD, depression and schizophrenia and also those driving radiation-induced brain neuropathological changes by reviewing the available data. We found that 3, 11, or 8 neuronal developmentrelated miRNAs from the brain tissue, 13, 16 or 14 miRNAs from the blood of patient with AD, depression and schizophrenia respectively were also involved in radiation-induced brain pathological changes, suggesting a possibly specific involvement of these miRNAs in radiation-induced development of AD, depression and schizophrenia respectively. On the other hand, we noted that radiationinduced changes of two miRNAs, i.e., miR-132, miR-29 in the brain tissue, three miRNAs, i.e., miR- 29c-5p, miR-106b-5p, miR-34a-5p in the blood were also involved in the development of AD, depression and schizophrenia, thereby suggesting that these miRNAs may be involved in the common brain neuropathological changes, such as impairment of neurogenesis and reduced learning memory ability observed in these three diseases and also after radiation exposure.
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Affiliation(s)
- Renu Chandra Segaran
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Li Yun Chan
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Hong Wang
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Feng Ru Tang
- Radiation Physiology Lab, Singapore Nuclear Research and Safety Initiative, National University of Singapore, CREATE Tower, Singapore 138602, Singapore
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17
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Bantounas I, Lopes FM, Rooney KM, Woolf AS, Kimber SJ. The miR-199a/214 Cluster Controls Nephrogenesis and Vascularization in a Human Embryonic Stem Cell Model. Stem Cell Reports 2021; 16:134-148. [PMID: 33306987 PMCID: PMC7897558 DOI: 10.1016/j.stemcr.2020.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are gene expression regulators and they have been implicated in acquired kidney diseases and in renal development, mostly through animal studies. We hypothesized that the miR-199a/214 cluster regulates human kidney development. We detected its expression in human embryonic kidneys by in situ hybridization. To mechanistically study the cluster, we used 2D and 3D human embryonic stem cell (hESC) models of kidney development. After confirming expression in each model, we inhibited the miRNAs using lentivirally transduced miRNA sponges. This reduced the WT1+ metanephric mesenchyme domain in 2D cultures. Sponges did not prevent the formation of 3D kidney-like organoids. These organoids, however, contained dysmorphic glomeruli, downregulated WT1, aberrant proximal tubules, and increased interstitial capillaries. Thus, the miR-199a/214 cluster fine-tunes differentiation of both metanephric mesenchymal-derived nephrons and kidney endothelia. While clinical implications require further study, it is noted that patients with heterozygous deletions encompassing this miRNA locus can have malformed kidneys.
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Affiliation(s)
- Ioannis Bantounas
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, University of Manchester, and the Manchester Academic Health Science Centre, Manchester, UK.
| | - Filipa M Lopes
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, University of Manchester, and the Manchester Academic Health Science Centre, Manchester, UK
| | - Kirsty M Rooney
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, University of Manchester, and the Manchester Academic Health Science Centre, Manchester, UK
| | - Adrian S Woolf
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, University of Manchester, and the Manchester Academic Health Science Centre, Manchester, UK; Royal Manchester Children's Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Susan J Kimber
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, University of Manchester, and the Manchester Academic Health Science Centre, Manchester, UK.
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18
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Kahroba H, Ramezani B, Maadi H, Sadeghi MR, Jaberie H, Ramezani F. The role of Nrf2 in neural stem/progenitors cells: From maintaining stemness and self-renewal to promoting differentiation capability and facilitating therapeutic application in neurodegenerative disease. Ageing Res Rev 2021; 65:101211. [PMID: 33186670 DOI: 10.1016/j.arr.2020.101211] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 11/05/2020] [Accepted: 11/07/2020] [Indexed: 02/07/2023]
Abstract
Neurodegenerative diseases (NDs) cause progressive loss of neurons in nervous system. NDs are categorized as acute NDs such as stroke and head injury, besides chronic NDs including Alzheimer's, Parkinson's, Huntington's diseases, Friedreich's Ataxia, Multiple Sclerosis. The exact etiology of NDs is not understood but oxidative stress, inflammation and synaptic dysfunction are main hallmarks. Oxidative stress leads to free radical attack on neural cells which contributes to protein misfolding, glia cell activation, mitochondrial dysfunction, impairment of DNA repair system and subsequently cellular death. Neural stem cells (NSCs) support adult neurogenesis in nervous system during injuries which is limited to certain regions in brain. NSCs can differentiate into the neurons, astrocytes or oligodendrocytes. Impaired neurogenesis and inadequate induction of neurogenesis are the main obstacles in treatment of NDs. Protection of neural cells from oxidative damages and supporting neurogenesis are promising strategies to treat NDs. Nuclear factor-erythroid 2-related factor 2 (Nrf2) is a transcriptional master regulator that maintains the redox homeostasis in cells by provoking expression of antioxidant, anti-inflammatory and cytoprotective genes. Nrf2 can strongly influence the NSCs function and fate determination by reducing levels of reactive oxygen species in benefit of NSC survival and neurogenesis. In this review we will summarize the role of Nrf2 in NSC function, and exogenous and endogenous therapeutic strategies in treatment of NDs.
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Affiliation(s)
- Houman Kahroba
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Bahman Ramezani
- Department of Chemistry, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Hamid Maadi
- Department of Medical Genetics, and Signal Transduction Research Group, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Mohammad Reza Sadeghi
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajar Jaberie
- Department of Biochemistry, Faculty of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Fatemeh Ramezani
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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19
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Niklison-Chirou MV, Agostini M, Amelio I, Melino G. Regulation of Adult Neurogenesis in Mammalian Brain. Int J Mol Sci 2020; 21:ijms21144869. [PMID: 32660154 PMCID: PMC7402357 DOI: 10.3390/ijms21144869] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/02/2020] [Accepted: 07/07/2020] [Indexed: 12/15/2022] Open
Abstract
Adult neurogenesis is a multistage process by which neurons are generated and integrated into existing neuronal circuits. In the adult brain, neurogenesis is mainly localized in two specialized niches, the subgranular zone (SGZ) of the dentate gyrus and the subventricular zone (SVZ) adjacent to the lateral ventricles. Neurogenesis plays a fundamental role in postnatal brain, where it is required for neuronal plasticity. Moreover, perturbation of adult neurogenesis contributes to several human diseases, including cognitive impairment and neurodegenerative diseases. The interplay between extrinsic and intrinsic factors is fundamental in regulating neurogenesis. Over the past decades, several studies on intrinsic pathways, including transcription factors, have highlighted their fundamental role in regulating every stage of neurogenesis. However, it is likely that transcriptional regulation is part of a more sophisticated regulatory network, which includes epigenetic modifications, non-coding RNAs and metabolic pathways. Here, we review recent findings that advance our knowledge in epigenetic, transcriptional and metabolic regulation of adult neurogenesis in the SGZ of the hippocampus, with a special attention to the p53-family of transcription factors.
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Affiliation(s)
- Maria Victoria Niklison-Chirou
- Centre for Therapeutic Innovation (CTI-Bath), Department of Pharmacy & Pharmacology, University of Bath, Bath BA2 7AY, UK;
- Blizard Institute of Cell and Molecular Science, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
| | - Massimiliano Agostini
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.A.); (I.A.)
| | - Ivano Amelio
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.A.); (I.A.)
- School of Life Sciences, University of Nottingham, Nottingham NG7 2HU, UK
| | - Gerry Melino
- Department of Experimental Medicine, TOR, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.A.); (I.A.)
- Correspondence:
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20
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Vasu MM, Sumitha PS, Rahna P, Thanseem I, Anitha A. microRNAs in Autism Spectrum Disorders. Curr Pharm Des 2020; 25:4368-4378. [PMID: 31692427 DOI: 10.2174/1381612825666191105120901] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 10/31/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND Efforts to unravel the extensive impact of the non-coding elements of the human genome on cell homeostasis and pathological processes have gained momentum over the last couple of decades. miRNAs refer to short, often 18-25 nucleotides long, non-coding RNA molecules which can regulate gene expression. Each miRNA can regulate several mRNAs. METHODS This article reviews the literature on the roles of miRNAs in autism. RESULTS Considering the fact that ~ 1% of the human DNA encodes different families of miRNAs, their overall impact as critical regulators of gene expression in the mammalian brain should be immense. Though the autism spectrum disorders (ASDs) are predominantly genetic in nature and several candidate genes are already identified, the highly heterogeneous and multifactorial nature of the disorder makes it difficult to identify common genetic risk factors. Several studies have suggested that the environmental factors may interact with the genetic factors to increase the risk. miRNAs could possibly be one of those factors which explain this link between genetics and the environment. CONCLUSION In the present review, we have summarized our current knowledge on miRNAs and their complex roles in ASD, and also on their therapeutic applications.
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Affiliation(s)
- Mahesh Mundalil Vasu
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Kavalappara, Shoranur, Palakkad - 679 523, Kerala, India
| | - Puthiripadath S Sumitha
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Kavalappara, Shoranur, Palakkad - 679 523, Kerala, India
| | - Parakkal Rahna
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Kavalappara, Shoranur, Palakkad - 679 523, Kerala, India
| | - Ismail Thanseem
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Kavalappara, Shoranur, Palakkad - 679 523, Kerala, India
| | - Ayyappan Anitha
- Department of Neurogenetics, Institute for Communicative and Cognitive Neurosciences (ICCONS), Kavalappara, Shoranur, Palakkad - 679 523, Kerala, India
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21
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MicroRNA-7: expression and function in brain physiological and pathological processes. Cell Biosci 2020; 10:77. [PMID: 32537124 PMCID: PMC7288475 DOI: 10.1186/s13578-020-00436-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/23/2020] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of small non-coding RNAs that regulate gene expression at the post-transcriptional level and play critical roles in regulating physiological function, and are becoming worldwide research hot spot in brain development and diseases. However, the exact value of miRNAs in brain physiological and pathological processes remain to be fully elucidated, which is vital for the application of miRNAs as diagnostic, prognostic, and therapeutic biomarkers for brain diseases. MicroRNA-7 (miR-7), as a highly expressed miRNA molecule in the mammalian brain, is well documented to play a critical role in development of various diseases. Importantly, accumulating evidence has shown that miR-7 is involved in a range of developmental and pathological processes of brain. Expressively, miR-7, encoded by three genes located different chromosomes, is dominantly expressed in neurons with sensory or neurosecretory. Moreover, the expression of miR-7 is regulated at three levels including gene transcription, process of primary and precursor sequence and formation of mature sequence. Physiologically, miR-7 principally governs the physiological development of Pituitary gland, Optic nervous system and Cerebral cortex. Pathologically, miR-7 can regulate multiple genes thereby manipulating the process of various brain diseases including neurodegenerative diseases, neuroinflammation, and mental disorders and so on. These emerging studies have shown that miR-7, a representative member of miRNA family, might be a novel intrinsic regulatory molecule involved in the physiological and pathological process of brain. Therefore, in-depth studies on the role of miR-7 in brain physiology and pathology undoubtedly not only provide a light on the roles of miRNAs in brain development and diseases, but also are much helpful for ultimate development of therapeutic strategies against brain diseases. In this review, we provide an overview of current scientific knowledge regarding the expression and function of miR-7 in development and disease of brain and raise many issues involved in the relationship between miR-7 and brain physiological and pathological processes.
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Ma J, Lin X, Chen C, Li S, Zhang S, Chen Z, Li D, Zhao F, Yang C, Yin C, Qiu W, Xiao Y, Zhang K, Miao Z, Yang T, Qian A. Circulating miR-181c-5p and miR-497-5p Are Potential Biomarkers for Prognosis and Diagnosis of Osteoporosis. J Clin Endocrinol Metab 2020; 105:5686162. [PMID: 31872255 DOI: 10.1210/clinem/dgz300] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/19/2019] [Indexed: 12/11/2022]
Abstract
CONTEXT Osteoporosis is a degenerative bone disease in aging men and women. MiRNAs associated with progressive bone loss in osteoporosis had not been clearly demonstrated. OBJECTIVE The evaluation of the differentially expressed miRNAs in the bone tissue and serum of osteoporotic women with aging. METHODS MiRNAs GeneChip and real-time PCR were used to screen differently expressed miRNAs in bone tissues of 21 osteoporotic women ages 60-69 years and 80-89 years. Identified miRNAs were detected in the serum of the validation cohort, which consisted of 14 healthy premenopausal women and 86 postmenopausal women with osteopenia or osteoporosis. MiR-181c-5p and miR-497-5p expression were validated in aging and OVX mice models, and osteoblasts. Their role in osteogenesis was validated in vitro. RESULTS Twenty-four miRNAs showed the highest differential expression in bone tissues of osteoporotic women in initial screening. Among them, four miRNAs were identified both in the bone tissue and serum in the validation cohort. The levels of miR-181c-5p and miR-497-5p were decreased in the serum of postmenopausal women with osteopenia or osteoporosis, but increased in subjects treated with bisphosphonate plus calcitriol. MiR-181c-5p and miR-497-5p were significantly downregulated in the bone tissue of aging and OVX mice models, and upregulated during the osteogenic differentiation of hFOB1.19 and MC3T3-E1 cells. Overexpression of miR-181c-5p and miR-497-5p promoted the differentiation and mineralization of osteoblasts. CONCLUSIONS MiR-181c-5p and miR-497-5p are involved in bone metabolism and associated with progressive bone loss of due to osteoporosis, suggesting that circulating miR-181c-5p and miR-497-5p might act as potential biomarkers for monitoring the effects of antiosteoporotic therapies or the diagnostic approach.
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Affiliation(s)
- Jianhua Ma
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- School of Public Health, Lanzhou University, Lanzhou, Gansu, China
| | - Xiao Lin
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Chu Chen
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
| | - Siyu Li
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Shasha Zhang
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Zhihao Chen
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Dijie Li
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Fan Zhao
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Chaofei Yang
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Chong Yin
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Wuxia Qiu
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Yunyun Xiao
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Kewen Zhang
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Zhiping Miao
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Tuanmin Yang
- Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
| | - Airong Qian
- Laboratory for Bone Metabolism, Key Lab for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- Research Center for Special Medicine and Health Systems Engineering, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
- NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
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Abstract
Abdominal tumors (AT) in children account for approximately 17% of all pediatric solid tumor cases, and frequently exhibit embryonal histological features that differentiate them from adult cancers. Current molecular approaches have greatly improved the understanding of the distinctive pathology of each tumor type and enabled the characterization of novel tumor biomarkers. As seen in abdominal adult tumors, microRNAs (miRNAs) have been increasingly implicated in either the initiation or progression of childhood cancer. Moreover, besides predicting patient prognosis, they represent valuable diagnostic tools that may also assist the surveillance of tumor behavior and treatment response, as well as the identification of the primary metastatic sites. Thus, the present study was undertaken to compile up-to-date information regarding the role of dysregulated miRNAs in the most common histological variants of AT, including neuroblastoma, nephroblastoma, hepatoblastoma, hepatocarcinoma, and adrenal tumors. Additionally, the clinical implications of dysregulated miRNAs as potential diagnostic tools or indicators of prognosis were evaluated.
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24
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Yue D, Zhao J, Chen H, Guo M, Chen C, Zhou Y, Xu L. MicroRNA-7, synergizes with RORα, negatively controls the pathology of brain tissue inflammation. J Neuroinflammation 2020; 17:28. [PMID: 31959187 PMCID: PMC6970296 DOI: 10.1186/s12974-020-1710-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 01/13/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Accumulating evidence has documented that microRNA-7 (miR-7) plays an important role in the pathology of various diseases. However, the potential role of miR-7 in brain tissue inflammation (BTI) remains unclear. METHODS We detected the expression of miR-7 in LPS-induced murine BTI model and observed the possible effects of miR-7 deficiency on the pathology of BTI. To elucidate the mechanism, the target gene of miR-7 was screened out by Gene chip assay and its potential roles in BTI were evaluated by Western blot, immunofluorescence, and RNAi assay, respectively. RESULTS MiR-7 was upregulated in brain tissue in BTI mice and its deficiency could significantly aggravate the pathology of brain tissue. Moreover, RORα, a new target molecule of miR-7, was upregulated in brain tissue from miR-7 deficiency BTI mice. Of note, downregulation of RORα could remarkably exacerbate the pathology of brain tissue and elevate the transduction of NF-κB and ERK1/2 signaling pathways in brain tissue from miR-7 deficiency BTI mice. Furthermore, RORα and miR-7 were dominantly co-expressed in neurons of BTI mice. Finally, RORα synergized with miR-7 to control the inflammatory reaction of neuronal cells in response to LPS stimulation. CONCLUSIONS MiR-7 expression is upregulated in BTI model. Moreover, miR-7 synergizes with its target gene RORα to control the inflammation reaction of neurons, thereby orchestrating the pathology of BTI.
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Affiliation(s)
- Dongxu Yue
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Juanjuan Zhao
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Huizi Chen
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Mengmeng Guo
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Chao Chen
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Ya Zhou
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China.,Department of Medical Physics, Zunyi Medical University, Zunyi, 563099, Guizhou, China
| | - Lin Xu
- Special Key Laboratory of Gene Detection & Therapy of Guizhou Province, Zunyi, 563099, Guizhou, China. .,Department of Immunology, Zunyi Medical University, Zunyi, 563099, Guizhou, China.
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25
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Campione E, Lanna C, Diluvio L, Cannizzaro MV, Grelli S, Galluzzo M, Talamonti M, Annicchiarico-Petruzzelli M, Mancini M, Melino G, Candi E, Schiavone G, Wang Y, Shi Y, Bianchi L. Skin immunity and its dysregulation in atopic dermatitis, hidradenitis suppurativa and vitiligo. Cell Cycle 2020; 19:257-267. [PMID: 31905036 DOI: 10.1080/15384101.2019.1707455] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
While the epidermis is the frontline defense against infections and indeed, it is a peripheral lymphoid organ, the same immunological mechanisms may initiate and sustain pathological conditions. Indeed, a deregulated action against exogenous pathogens could activate a T cell response in atopic dermatitis, hidradenitis suppurativa and vitiligo. Atopic dermatitis (AD) is a chronic inflammatory skin condition with a complex pathophysiology. Although T helper 2 immunity dysregulation is thought to be the main cause of AD etiopathogenesis, the triggering mechanism is not well understood, and the treatment is often difficult. As the AD, hidradenitis suppurativa (HS) is a chronic inflammatory skin disease with a dramatic impact on the quality of life of the affected patients. The exact pathophysiology of HS is still unclear, but many evidences report a follicular obstruction and subsequent inflammation with TNF-α, interleukin (IL)-1β, IL-10, and IL-17 involvement. Vitiligo is an autoimmune epidermal disorder which consists of melanocytes destruction and skin depigmentation. Melanocytes destruction is mainly due to their increased oxidative-stress sensitivity with a consequent activation of innate first and adaptative immunity (CD8+ T cells) later. The understanding of the triggering mechanisms of AD, HS and Vitiligo is pivotal to outline novel therapies aimed at regaining the physiological immune homeostasis of healthy skin. The aim of this review is to provide new insight on the pathogenesis of these skin diseases and to highlight on the new therapeutic approaches adopted in the treatment of AD, HS and Vitiligo.
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Affiliation(s)
- Elena Campione
- Unit of Dermatology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Caterina Lanna
- Unit of Dermatology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Laura Diluvio
- Unit of Dermatology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - Sandro Grelli
- Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Marco Galluzzo
- Unit of Dermatology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Marina Talamonti
- Unit of Dermatology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - Mara Mancini
- Biochemistry Laboratory, Istituto Dermopatico Immacolata (IDI-IRCCS), Rome, Italy
| | - Gerry Melino
- Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy.,Biochemistry Laboratory, Istituto Dermopatico Immacolata (IDI-IRCCS), Rome, Italy
| | - Eleonora Candi
- Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Gianfranco Schiavone
- Plastic Surgery and Regenerative Surgery Unit, Istituto Dermopatico Immacolata (IDI-IRCCS), Rome, Italy
| | - Ying Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yufang Shi
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.,The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine and Key Laboratory of Stem Cells and Biomedical Materials of Jiangsu Province and Chinese Ministry of Science and Technology, Soochow University, Suzhou, Jiangsu, China
| | - Luca Bianchi
- Unit of Dermatology, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
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26
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Sabater-Arcis M, Bargiela A, Furling D, Artero R. miR-7 Restores Phenotypes in Myotonic Dystrophy Muscle Cells by Repressing Hyperactivated Autophagy. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 19:278-292. [PMID: 31855836 PMCID: PMC6926285 DOI: 10.1016/j.omtn.2019.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/08/2019] [Accepted: 11/08/2019] [Indexed: 12/16/2022]
Abstract
Unstable CTG expansions in the 3’ UTR of the DMPK gene are responsible for myotonic dystrophy type 1 (DM1) condition. Muscle dysfunction is one of the main contributors to DM1 mortality and morbidity. Pathways by which mutant DMPK trigger muscle defects, however, are not fully understood. We previously reported that miR-7 was downregulated in a DM1 Drosophila model and in biopsies from patients. Here, using DM1 and normal muscle cells, we investigated whether miR-7 contributes to the muscle phenotype by studying the consequences of replenishing or blocking miR-7, respectively. Restoration of miR-7 with agomiR-7 was sufficient to rescue DM1 myoblast fusion defects and myotube growth. Conversely, oligonucleotide-mediated blocking of miR-7 in normal myoblasts led to fusion and myotube growth defects. miR-7 was found to regulate autophagy and the ubiquitin-proteasome system in human muscle cells. Thus, low levels of miR-7 promoted both processes, and high levels of miR-7 repressed them. Furthermore, we uncovered that the mechanism by which miR-7 improves atrophy-related phenotypes is independent of MBNL1, thus suggesting that miR-7 acts downstream or in parallel to MBNL1. Collectively, these results highlight an unknown function for miR-7 in muscle dysfunction through autophagy- and atrophy-related pathways and support that restoration of miR-7 levels is a candidate therapeutic target for counteracting muscle dysfunction in DM1.
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Affiliation(s)
- Maria Sabater-Arcis
- Translational Genomics Group, Incliva Health Research Institute, Valencia 46100, Spain; Interdisciplinary Research Structure for Biotechnology and Biomedicine (ERI BIOTECMED), University of Valencia, Valencia 46100, Spain; CIPF-INCLIVA Joint Unit, Valencia 46012, Spain
| | - Ariadna Bargiela
- Translational Genomics Group, Incliva Health Research Institute, Valencia 46100, Spain; Interdisciplinary Research Structure for Biotechnology and Biomedicine (ERI BIOTECMED), University of Valencia, Valencia 46100, Spain; CIPF-INCLIVA Joint Unit, Valencia 46012, Spain.
| | - Denis Furling
- Sorbonne Université, Inserm, Association Institut de Myologie, Centre de Recherche en Myologie, Paris 75013, France
| | - Ruben Artero
- Translational Genomics Group, Incliva Health Research Institute, Valencia 46100, Spain; Interdisciplinary Research Structure for Biotechnology and Biomedicine (ERI BIOTECMED), University of Valencia, Valencia 46100, Spain; CIPF-INCLIVA Joint Unit, Valencia 46012, Spain
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27
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Buffa S, Borzì D, Chiarelli R, Crapanzano F, Lena AM, Nania M, Candi E, Triolo F, Ruvolo G, Melino G, Balistreri CR. Biomarkers for vascular ageing in aorta tissues and blood samples. Exp Gerontol 2019; 128:110741. [PMID: 31648011 DOI: 10.1016/j.exger.2019.110741] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 07/26/2019] [Accepted: 09/18/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Functional and quantitative alterations and senescence of circulating and expanded endothelial progenitor cells (EPC), as well as systemic and tissue modifications of angiogenetic and inflammatory molecules, were evaluated for predicting age-related vessel wall remodeling, correlating them to intima media thickness (IMT) in the common carotid artery (CCA), a biomarker of early cardiovascular disease and aortic root dilation. POPULATIONS AND METHODS A homogenous Caucasian population was included in the study, constituted by 160 healthy subjects (80 old subjects, mean age 72 ± 6.4, range 66-83 years; and 80 younger blood donors, mean age 26.2 ± 3.4, range 21-33 years), and 60 old subjects (mean age 73 ± 1.4 (range 66-83) years) with aortic root dilatation and hypertension, and 60 old people (70 ± 2.8 (age range 66-83)) with sporadic ascending aorta aneurysm (AAA). In addition, 20 control individuals (10 men and 10 women, mean age: 65 ± 8), were also included in the study for evaluating the gene expression's levels, in aorta tissues. Appropriate techniques, practises, protocols, gating strategies and statistical analyses were performed in our evaluations. RESULTS Interestingly, old people had a significantly reduced functionality and a high grade of senescence (high SA-β-Gal activity and high levels of TP53, p21 and p16 genes) of EPC expanded than younger subjects. The values of related parameters progressively augmented from the old subjects, in good healthy shape, to subjects with hypertension and aorta dilation, and AAA. Moreover, they significantly impacted the endothelium than the alterations in EPC number. No changes, but rather increased systemic levels of VEGF and SDF-1 were also assessed in old people vs. younger donors. Old people also showed significantly increased systemic levels of inflammatory cytokines, and a reciprocal significant reduction of systemic s-Notch 1 than younger subjects. These parameters, also including the number EPC alterations, resulted to be significantly sustained in old people bearers of an inflammatory combined genotype. Consistent with these data, a reduced expression of Notch-1 gene, accompanied by a sustained expression of inflammatory genes (i.e. TLR4, IL-1β, IL-6 and IL-17) were detected in aortic tissues from old control people and AAA cases. Finally, we detected the biological effects induced by all the detected alterations on vessel wall age-related remodeling, by evaluating the IMT in the population studied and correlating it to these alterations. The analysis demonstrated that the unique independent risk predictors for vascular ageing are age, the EPC reduced migratory activity and senescence, high grade of expression of genes inducing EPC senescence and chronic tissue and systemic inflammation. CONCLUSIONS Thus, we propose these parameters, of easy determination in biological samples (i.e. blood and tissue samples) from alive human population, as optimal biomarkers for vascular ageing.
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Affiliation(s)
- Silvio Buffa
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Davide Borzì
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Rita Chiarelli
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Floriana Crapanzano
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Anna Maria Lena
- Department of Experimental Medicine, TOR, University of Rome "Tor Vergata", Rome, Italy
| | - Martina Nania
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Eleonora Candi
- Department of Experimental Medicine, TOR, University of Rome "Tor Vergata", Rome, Italy; Istituto Dermopatico dell'Immacolata, IRCCS, Rome, Italy
| | - Fabio Triolo
- Department of Internal Medicine and Cardiovascular Disease, Division of Cardiology and Cardiovascular Rehabilitation, University Hospital Paolo Giaccone, Palermo, Italy
| | - Giovanni Ruvolo
- Cardiac Surgery Unit, Department of Surgical Science, Tor Vergata University Hospital, Rome, Italy
| | - Gerry Melino
- Department of Experimental Medicine, TOR, University of Rome "Tor Vergata", Rome, Italy; MRC-Toxicology Unit, University of Cambridge, UK
| | - Carmela Rita Balistreri
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy.
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28
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Hu C, Liang X, Fang S, Xu L, Gong M, Wang Y, Bi Y, Hong S, He Y. ATRA induces the differentiation of hepatic progenitor cells by upregulating microRNA-200a. In Vitro Cell Dev Biol Anim 2019; 55:713-722. [PMID: 31515718 DOI: 10.1007/s11626-019-00390-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 07/21/2019] [Indexed: 02/07/2023]
Abstract
Hepatic progenitor cells (HPCs) are potential seed cells for hepatocyte transplantation treatment of liver diseases. ATRA can induce the differentiation and mature function of hepatic progenitor cells, but the mechanism is still poorly understood. Here, by using microRNA array to analyze the expression profiles of microRNA (miR), we found that miR-200 family molecules in HPCs were upregulated after ATRA treatment, especially miR-200a-3p, 200c-3p, and 141-3p. ATRA induction could downregulate the expression of hepatic stem markers Oct4 and AFP, and improve the expression of hepatic markers ALB, CK18, and TAT, and the activity of ALB-GLuc, as well as indocyanine green uptake and glycogen storage function of HPCs. These above effects of ATRA on HPC differentiation were almost inhibited by blocking of miR-200a-3p, but not miR-200c-3p and 141-3p using antagomir. Cell autophagy is associated with ATRA regulation in HPCs, compared with control group, the expression of LC3 and Beclin1 increased in ATRA-treated HPCs, and orange and red fluorescent spot, which represents autophagy flow, also enhanced after ATRA treatment. However, ATRA-induced cell autophagy level was inhibited in antagomir-200a-3p+ATRA-treated cells. Therefore, the present study indicates that antagomir-200a-3p is related to ATRA-induced hepatic differentiation of HPCs through regulating cell autophagy, supporting the possible use of ATRA as a key inducer in HPC-based therapy of liver diseases.
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Affiliation(s)
- Chaoqun Hu
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Building 5, Room 501, 136 Zhongshan Er Road, Chongqing, 400014, People's Republic of China
| | - Xiaohua Liang
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Building 5, Room 501, 136 Zhongshan Er Road, Chongqing, 400014, People's Republic of China
| | - Shuyu Fang
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Building 5, Room 501, 136 Zhongshan Er Road, Chongqing, 400014, People's Republic of China
| | - Lei Xu
- Department of Microbiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Mengjia Gong
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Building 5, Room 501, 136 Zhongshan Er Road, Chongqing, 400014, People's Republic of China
| | - Yi Wang
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Building 5, Room 501, 136 Zhongshan Er Road, Chongqing, 400014, People's Republic of China
| | - Yang Bi
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Building 5, Room 501, 136 Zhongshan Er Road, Chongqing, 400014, People's Republic of China
| | - Siqi Hong
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Building 5, Room 501, 136 Zhongshan Er Road, Chongqing, 400014, People's Republic of China.
| | - Yun He
- Stem Cell Biology and Therapy Laboratory, Department of Pediatric Surgery, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Building 5, Room 501, 136 Zhongshan Er Road, Chongqing, 400014, People's Republic of China.
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29
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Lima L, de Melo TCT, Marques D, de Araújo JNG, Leite ISF, Alves CX, Genre J, Silbiger VN. Modulation of all-trans retinoic acid-induced MiRNA expression in neoplastic cell lines: a systematic review. BMC Cancer 2019; 19:866. [PMID: 31470825 PMCID: PMC6717326 DOI: 10.1186/s12885-019-6081-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 08/23/2019] [Indexed: 12/13/2022] Open
Abstract
Background Cancer is a genetic and epigenetic disease that involves inactivation of tumor suppressor genes and activation of proto-oncogenes. All-trans retinoic acid (ATRA) is an isomer of retinoic acid involved in the onset of differentiation and apoptosis of a number of normal and cancer cells, functioning as an anti-cancer agent in several neoplasms. Ectopic changes in the expression of certain microRNAs (miRNAs) occur in response to ATRA, leading to phenotypic alterations in neoplastic cell lines. Moreover, the modulation of miRNA patterns upon ATRA-treatment may represent an effective chemopreventive and anti-cancer therapy strategy. The present systematic review was performed to provide an overview of the modulation of ATRA-induced miRNA expression in different types of neoplastic cells and identify the efficacy of intervention factors (i.e., concentration and duration of treatment) and how they influence expression profiles of oncogenesis-targeting miRNAs. Methods A systematic search was conducted according to the PRISMA statement via the US National Library of Medicine MEDLINE/PubMed bibliographic search engine. Results The search identified 31 experimental studies involving human cell lines from nine different cancer types (neuroblastoma, acute myeloid leukemia, breast cancer, lung cancer, pancreatic cancer, glioma, glioblastoma, embryonal carcinoma, and colorectal cancer) treated with ATRA at concentrations ranging from 10− 3 μmol/L to 102 μmol mol/L for 24 h to 21 days. Conclusion The concentrations used and the duration of treatment of cancer cells with ATRA varied widely. The presence of ATRA in the culture medium of cancer cells was able to modulate the expression of more than 300 miRNAs, and inhibit invasive behavior and deregulated growth of cancer cells, resulting in total tumor remission in some cases. ATRA may thus be broadly effective for neoplasm treatment and prevention, although these studies may not accurately represent in vivo conditions. Additional studies are required to elucidate ATRA-induced miRNA modulation during neoplasm treatment.
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Affiliation(s)
- Lara Lima
- Postgraduate Program in Nutrition, Federal University of Rio Grande do Norte, Natal, Brazil.,Laboratory of Bioanalysis and Molecular Biotechnology, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Diego Marques
- Laboratory of Bioanalysis and Molecular Biotechnology, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Jéssica Nayara Góes de Araújo
- Laboratory of Bioanalysis and Molecular Biotechnology, Federal University of Rio Grande do Norte, Natal, Brazil.,Postgraduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Camila Xavier Alves
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Julieta Genre
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Vivian Nogueira Silbiger
- Postgraduate Program in Nutrition, Federal University of Rio Grande do Norte, Natal, Brazil. .,Laboratory of Bioanalysis and Molecular Biotechnology, Federal University of Rio Grande do Norte, Natal, Brazil. .,Postgraduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Norte, Natal, Brazil. .,Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Av. General Gustavo Cordeiro de Faria S/N, Petrópolis, Natal - RN, 59012-570, Brazil.
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30
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Lanna C, Mancini M, Gaziano R, Cannizzaro MV, Galluzzo M, Talamonti M, Rovella V, Annicchiarico-Petruzzelli M, Melino G, Wang Y, Shi Y, Campione E, Bianchi L. Skin immunity and its dysregulation in psoriasis. Cell Cycle 2019; 18:2581-2589. [PMID: 31416396 DOI: 10.1080/15384101.2019.1653099] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The skin is a peripheral lymphoid organ, being the first immunological defense against infections as the initial interface between the organism and the external background. The maintenance of the skin immune homeostasis depends on a finely equilibrium of well-regulated relations between different cells and exogenous pathogens. Inflammatory skin diseases are directly linked to the dysregulation of this equilibrium. The present review discusses the role of the immune system, of T cells, in the etiopathogenesis of psoriasis, illustrating a potential rationale for innovative therapeutic intervention.
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Affiliation(s)
- Caterina Lanna
- Unit of Dermatology, Department of Systems Medicine, University of Rome 'Tor Vergata' , Rome , Italy
| | - Mara Mancini
- Biochemistry Laboratory, Istituto Dermopatico Immacolata (IDI-IRCCS) , Rome , Italy
| | - Roberta Gaziano
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata , Rome , Italy
| | - Maria Vittoria Cannizzaro
- Unit of Dermatology, Department of Systems Medicine, University of Rome 'Tor Vergata' , Rome , Italy
| | - Marco Galluzzo
- Unit of Dermatology, Department of Systems Medicine, University of Rome 'Tor Vergata' , Rome , Italy
| | - Marina Talamonti
- Unit of Dermatology, Department of Systems Medicine, University of Rome 'Tor Vergata' , Rome , Italy
| | - Valentina Rovella
- Biochemistry Laboratory, Istituto Dermopatico Immacolata (IDI-IRCCS) , Rome , Italy
| | | | - Gerry Melino
- Biochemistry Laboratory, Istituto Dermopatico Immacolata (IDI-IRCCS) , Rome , Italy.,Department of Experimental Medicine, TOR, University of Rome Tor Vergata , Rome , Italy
| | - Ying Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Shanghai , China
| | - Yufang Shi
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences/Shanghai Jiao Tong University School of Medicine, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Shanghai , China.,The First Affiliated Hospital of Soochow University, State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University Medical College , Suzhou , Jiangsu , 215123 , China
| | - Elena Campione
- Unit of Dermatology, Department of Systems Medicine, University of Rome 'Tor Vergata' , Rome , Italy
| | - Luca Bianchi
- Unit of Dermatology, Department of Systems Medicine, University of Rome 'Tor Vergata' , Rome , Italy
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31
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Retinoic Acid Induces Differentiation of Mouse F9 Embryonic Carcinoma Cell by Modulating the miR-485 Targeting of Abhd2. Int J Mol Sci 2019; 20:ijms20092071. [PMID: 31035455 PMCID: PMC6539702 DOI: 10.3390/ijms20092071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/19/2019] [Accepted: 04/23/2019] [Indexed: 12/15/2022] Open
Abstract
Retinoic acid (RA) plays a key role in pluripotent cell differentiation. In F9 embryonic carcinoma cells, RA can induce differentiation towards somatic lineages via the Ras-extracellular signal-regulated kinase (Ras/Erk) pathway, but the mechanism through which it induces the Erk1/2 phosphorylation is unclear. Here, we show that miR-485 is a positive regulator that targets α/β-hydrolase domain-containing protein 2 (Abhd2), which can result in Erk1/2 phosphorylation and triggers differentiation. RA up-regulates miR-485 and concurrently down-regulates Abhd2. We verified that Abhd2 is targeted by miR-485 and they both can influence the phosphorylation of Erk1/2. In summary, RA can mediate cell differentiation by phosphorylating Erk1/2 via miR-485 and Abhd2.
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32
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Ramaswamy P, Christopher R, Pal PK, Yadav R. MicroRNAs to differentiate Parkinsonian disorders: Advances in biomarkers and therapeutics. J Neurol Sci 2018; 394:26-37. [PMID: 30196132 DOI: 10.1016/j.jns.2018.08.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 08/30/2018] [Accepted: 08/30/2018] [Indexed: 12/28/2022]
Abstract
Parkinsonian disorders are a set of progressive neurodegenerative movement disorders characterized by rigidity, tremor, bradykinesia, postural instability and their distinction has significant implications in terms of management and prognosis. Parkinson's disease (PD) is the most common among them. Its clinical diagnosis is challenging and, it can be misdiagnosed in the early stages. Multiple system atrophy and progressive supranuclear palsy are the close mimickers in early stages, due to overlapping clinical features. MicroRNAs are a class of stable non-coding small RNA molecules implicated in post-transcriptional gene regulation. Current studies propose that miRNAs play an essential role in the pathobiology of multiple neurodegenerative disorders including Parkinsonism, and they seem to be one of the reasonably available methods to aid in the differential diagnosis between PD and related disorders. MicroRNA-based diagnostic biomarkers and therapeutics are a powerful tool to understand and explore the function of the pathogenic gene/s, their mechanism in the disease pathobiology, and to validate drug targets. In this review, we emphasize on the recent developments in the usage of miRNAs as diagnostic biomarkers to identify PD and to differentiate it from atypical parkinsonian conditions, their role in disease pathogenesis, and their possible utility in the therapy of these disorders.
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Affiliation(s)
- Palaniswamy Ramaswamy
- Department of Neurology, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India
| | - Rita Christopher
- Department of Neurochemistry, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India
| | - Pramod Kumar Pal
- Department of Neurology, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India
| | - Ravi Yadav
- Department of Neurology, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru 560029, India.
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33
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Zhang L, Mubarak T, Chen Y, Lee T, Pollock A, Sun T. Counter-Balance Between Gli3 and miR-7 Is Required for Proper Morphogenesis and Size Control of the Mouse Brain. Front Cell Neurosci 2018; 12:259. [PMID: 30210296 PMCID: PMC6121149 DOI: 10.3389/fncel.2018.00259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 07/30/2018] [Indexed: 12/25/2022] Open
Abstract
Brain morphogenesis requires precise regulation of multiple genes to control specification of distinct neural progenitors (NPs) and neuronal production. Dysregulation of these genes results in severe brain malformation such as macrocephaly and microcephaly. Despite studies of the effect of individual pathogenic genes, the counter-balance between multiple factors in controlling brain size remains unclear. Here we show that cortical deletion of Gli3 results in enlarged brain and folding structures in the cortical midline at the postnatal stage, which is mainly caused by the increased percentage of intermediate progenitors (IPs) and newborn neurons. In addition, dysregulation of neuronal migration also contributes to the folding defects in the cortical midline region. Knockdown of microRNA (miRNA) miR-7 can rescue abnormal brain morphology in Gli3 knockout mice by recovering progenitor specification, neuronal production and migration through a counter-balance of the Gli3 activity. Moreover, miR-7 likely exerts its function through silencing target gene Pax6. Our results indicate that proper brain morphogenesis is an outcome of interactive regulations of multiple molecules such as Gli3 and miR-7. Because miRNAs are easy to synthesize and deliver, miR-7 could be a potential therapeutic means to macrocephaly caused by Gli3-deficiency.
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Affiliation(s)
- Longbin Zhang
- Center for Precision Medicine, School of Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen, China
| | - Taufif Mubarak
- Department of Cell and Developmental Biology, Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Yase Chen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Trevor Lee
- Department of Cell and Developmental Biology, Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Andrew Pollock
- Department of Cell and Developmental Biology, Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Tao Sun
- Center for Precision Medicine, School of Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen, China
- Department of Cell and Developmental Biology, Weill Cornell Medicine, Cornell University, New York, NY, United States
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34
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Sun Y, Kuek V, Liu Y, Tickner J, Yuan Y, Chen L, Zeng Z, Shao M, He W, Xu J. MiR-214 is an important regulator of the musculoskeletal metabolism and disease. J Cell Physiol 2018; 234:231-245. [PMID: 30076721 DOI: 10.1002/jcp.26856] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 05/10/2018] [Indexed: 12/21/2022]
Abstract
MiR-214 belongs to a family of microRNA (small, highly conserved noncoding RNA molecules) precursors that play a pivotal role in biological functions, such as cellular function, tissue development, tissue homeostasis, and pathogenesis of diseases. Recently, miR-214 emerged as a critical regulator of musculoskeletal metabolism. Specifically, miR-214 can mediate skeletal muscle myogenesis and vascular smooth muscle cell proliferation, migration, and differentiation. MiR-214 also modulates osteoblast function by targeting specific molecular pathways and the expression of various osteoblast-related genes; promotes osteoclast activity by targeting phosphatase and tensin homolog (Pten); and mediates osteoclast-osteoblast intercellular crosstalk via an exosomal miRNA paracrine mechanism. Importantly, dysregulation in miR-214 expression is associated with pathological bone conditions such as osteoporosis, osteosarcoma, multiple myeloma, and osteolytic bone metastasis of breast cancer. This review discusses the cellular targets of miR-214 in bone, the molecular mechanisms governing the activities of miR-214 in the musculoskeletal system, and the putative role of miR-214 in skeletal diseases. Understanding the biology of miR-214 could potentially lead to the development of miR-214 as a possible biomarker and a therapeutic target for musculoskeletal diseases.
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Affiliation(s)
- Youqiang Sun
- The Department of Orthopedics, First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,Division of Pathology and Laboratory Medicine, School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia.,The Laboratory of Orthopaedics and Traumatology of Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Vincent Kuek
- Division of Pathology and Laboratory Medicine, School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
| | - Yuhao Liu
- The Department of Orthopedics, First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,Division of Pathology and Laboratory Medicine, School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia.,The Laboratory of Orthopaedics and Traumatology of Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Jennifer Tickner
- Division of Pathology and Laboratory Medicine, School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia
| | - Yu Yuan
- School of Physical Education and Sports Science, South China Normal University, Guangzhou, Guangdong, China
| | - Leilei Chen
- The Department of Orthopedics, First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,The Laboratory of Orthopaedics and Traumatology of Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Zhikui Zeng
- The Department of Orthopedics, First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,The Laboratory of Orthopaedics and Traumatology of Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Min Shao
- The Laboratory of Orthopaedics and Traumatology of Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,Department of Orthopedics, Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Wei He
- The Department of Orthopedics, First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,The Laboratory of Orthopaedics and Traumatology of Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Jiake Xu
- Division of Pathology and Laboratory Medicine, School of Biomedical Sciences, The University of Western Australia, Perth, WA, Australia.,The Laboratory of Orthopaedics and Traumatology of Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
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35
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Li Y, Liu Y, Fan J, Zhou Q, Song X, Peng Z, Qin Z, Tao T. Validation and bioinformatic analysis of propofol-induced differentially expressed microRNAs in primary cultured neural stem cells. Gene 2018; 664:90-100. [PMID: 29679758 DOI: 10.1016/j.gene.2018.04.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/26/2018] [Accepted: 04/16/2018] [Indexed: 11/27/2022]
Abstract
Propofol, a widely used intravenous anesthetic, was previously considered as a neuroprotective agent. Recently, however, accumulating evidence suggests that it may cause neurotoxicity, especially in the development of neural stem cells (NSCs). The potential mechanisms contributing to propofol-induced neurotoxicity during neurogenesis, such as those involving microRNAs (miRNAs), are still unknown. In this study, a total of 27 differentially expressed miRNAs were identified in our initial screen and 6 miRNAs were validated by qRT-PCR. Three miRNAs were up-regulated (miR-377-5p, miR-194-3p and miR-143-5p), and three were down-regulated (miR-3583-3p, miR-466b-5p and miR-410-5p). Following gene ontology and KEGG pathway enrichment analysis, Gabbr1, Canca1b and Gabbr2, which are enriched in the GABAergic synapse pathway, were selected as genes potentially playing a role in propofol-induced neurotoxicity. Gabbr1 and Cacna1b, which are targeted by miRNAs that are up-regulated following propofol exposure, showed decreased expression at the mRNA and protein levels. Gabbr2, targeted by miRNAs that were down-regulated following treatment with propofol, was up-regulated at both the levels of mRNA and protein expression. The two clusters of miRNAs that show differential expression following propofol exposure may act in a synergistic manner to regulate several genes simultaneously during the development of NSCs. Our results may contribute to clarify the molecular mechanism and provide potential therapeutic targets for propofol induced neurotoxicity.
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Affiliation(s)
- Yan Li
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Youtan Liu
- Department of Anesthesiology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Jun Fan
- Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China; Key Laboratory of Psychiatric Disorders of Guangdong Province, Guangzhou, China
| | - Quan Zhou
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiuling Song
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiyong Peng
- Department of Anesthesiology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Zaisheng Qin
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Tao Tao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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36
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Bem J, Grabowska I, Daniszewski M, Zawada D, Czerwinska AM, Bugajski L, Piwocka K, Fogtman A, Ciemerych MA. Transient MicroRNA Expression Enhances Myogenic Potential of Mouse Embryonic Stem Cells. Stem Cells 2018; 36:655-670. [PMID: 29314416 DOI: 10.1002/stem.2772] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/07/2017] [Accepted: 12/27/2017] [Indexed: 02/06/2023]
Abstract
MicroRNAs (miRNAs) are known regulators of various cellular processes, including pluripotency and differentiation of embryonic stem cells (ESCs). We analyzed differentiation of two ESC lines-D3 and B8, and observed significant differences in the expression of miRNAs and genes involved in pluripotency and differentiation. We also examined if transient miRNA overexpression could serve as a sufficient impulse modulating differentiation of mouse ESCs. ESCs were transfected with miRNA Mimics and differentiated in embryoid bodies and embryoid body outgrowths. miRNAs involved in differentiation of mesodermal lineages, such as miR145 and miR181, as well as miRNAs regulating myogenesis (MyomiRs)-miR1, miR133a, miR133b, and miR206 were tested. Using such approach, we proved that transient overexpression of molecules selected by us modulated differentiation of mouse ESCs. Increase in miR145 levels upregulated Pax3, Pax7, Myod1, Myog, and MyHC2, while miR181 triggered the expression of such crucial myogenic factors as Myf5 and MyHC2. As a result, the ability of ESCs to initiate myogenic differentiation and form myotubes was enhanced. Premature expression of MyomiRs had, however, an adverse effect on myogenic differentiation of ESCs. Stem Cells 2018;36:655-670.
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Affiliation(s)
- Joanna Bem
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Iwona Grabowska
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Maciej Daniszewski
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Dorota Zawada
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Areta M Czerwinska
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
| | - Lukasz Bugajski
- Laboratory of Cytometry, Nencki Institute of Experimental Biology
| | | | - Anna Fogtman
- Laboratory of Microarray Analysis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Maria A Ciemerych
- Department of Cytology, Institute of Zoology, Faculty of Biology, University of Warsaw, Poland
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37
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Wu Y, Li Z, Yang M, Dai B, Hu F, Yang F, Zhu J, Chen T, Zhang L. MicroRNA-214 regulates smooth muscle cell differentiation from stem cells by targeting RNA-binding protein QKI. Oncotarget 2017; 8:19866-19878. [PMID: 28186995 PMCID: PMC5386729 DOI: 10.18632/oncotarget.15189] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 11/30/2016] [Indexed: 12/15/2022] Open
Abstract
MicroRNA-214(miR-214) has been recently reported to regulate angiogenesis and embryonic stem cells (ESCs) differentiation. However, very little is known about its functional role in vascular smooth muscle cells (VSMCs) differentiation from ESCs. In the present study, we assessed the hypothesis that miR-214 and its target genes play an important role in VSMCs differentiation. Murine ESCs were seeded on collagen-coated flasks and cultured in differentiation medium for 2 to 8 days to allow VSMCs differentiation. miR-214 was significantly upregulated during VSMCs differentiation. miR-214 overexpression and knockdown in differentiating ESCs significantly promoted and inhibited VSMCs -specific genes expression, respectively. Importantly, miR-214 overexpression in ESCs promoted VSMCs differentiation in vivo. Quaking (QKI) was predicted as one of the major targets of miR-214, which was negatively regulated by miR-214. Luciferase assay showed miR-214 substantially inhibited wild type, but not the mutant version of QKI-3-UTR-luciferase activity in differentiating ESCs, further confirming a negative regulation role of miR-214 in QKI gene expression. Mechanistically, our data showed that miR-214 regulated VSMCs gene expression during VSMCs differentiation from ESCs through suppression of QKI. We further demonstrated that QKI down-regulated the expression of SRF, MEF2C and Myocd through transcriptional repression and direct binding to promoters of the SRF, MEF2c and Myocd genes. Taken together, we have uncovered a central role of miR-214 in ESC-VSMC differentiation, and successfully identified QKI as a functional modulating target in miR-214 mediated VSMCs differentiation.
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Affiliation(s)
- Yutao Wu
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Zhoubin Li
- Department of Lung Transplantation, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Mei Yang
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Bing Dai
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Feng Hu
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Feng Yang
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Jianhua Zhu
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Ting Chen
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Li Zhang
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
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38
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Ghibaudi M, Boido M, Vercelli A. Functional integration of complex miRNA networks in central and peripheral lesion and axonal regeneration. Prog Neurobiol 2017; 158:69-93. [PMID: 28779869 DOI: 10.1016/j.pneurobio.2017.07.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 07/24/2017] [Accepted: 07/28/2017] [Indexed: 01/06/2023]
Abstract
New players are emerging in the game of peripheral and central nervous system injury since their physiopathological mechanisms remain partially elusive. These mechanisms are characterized by several molecules whose activation and/or modification following a trauma is often controlled at transcriptional level. In this scenario, microRNAs (miRNAs/miRs) have been identified as main actors in coordinating important molecular pathways in nerve or spinal cord injury (SCI). miRNAs are small non-coding RNAs whose functionality at network level is now emerging as a new level of complexity. Indeed they can act as an organized network to provide a precise control of several biological processes. Here we describe the functional synergy of some miRNAs in case of SCI and peripheral damage. In particular we show how several small RNAs can cooperate in influencing simultaneously the molecular pathways orchestrating axon regeneration, inflammation, apoptosis and remyelination. We report about the networks for which miRNA-target bindings have been experimentally demonstrated or inferred based on target prediction data: in both cases, the connection between one miRNA and its downstream pathway is derived from a validated observation or is predicted from the literature. Hence, we discuss the importance of miRNAs in some pathological processes focusing on their functional structure as participating in a cooperative and/or convergence network.
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Affiliation(s)
- M Ghibaudi
- Department of Neuroscience "Rita Levi Montalcini", Neuroscience Institute Cavalieri Ottolenghi, University of Torino, Italian Institute of Neuroscience, Italy.
| | - M Boido
- Department of Neuroscience "Rita Levi Montalcini", Neuroscience Institute Cavalieri Ottolenghi, University of Torino, Italian Institute of Neuroscience, Italy
| | - A Vercelli
- Department of Neuroscience "Rita Levi Montalcini", Neuroscience Institute Cavalieri Ottolenghi, University of Torino, Italian Institute of Neuroscience, Italy
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39
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Hu F, Xu P, Sun B, Teng G, Xiao Z. Deep sequencing reveals complex mechanisms of microRNA regulation during retinoic acid-induced neuronal differentiation of mesenchymal stem cells. Genomics 2017; 109:302-311. [PMID: 28502702 DOI: 10.1016/j.ygeno.2017.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/08/2017] [Accepted: 05/09/2017] [Indexed: 02/05/2023]
Abstract
Retinoic acid (RA) has an important role in nervous system development; exogenous RA could induce stem cells towards neural lineage cells. However, the miRNA regulation mechanism and biological process of this induction require further exploration. In this study, using high-throughput sequencing results, we evaluated the microRNA profiles of neurally differentiated adipose-derived mesenchymal stem cells (ASCs), summarized several crucial microRNAs that profoundly contributed to the differentiation process, and speculated that several miRNAs were likely to mimic RA or other factors to induce the neuronal differentiation of stem cells. The GO terms and KEGG PATHWAY in the DAVID tool were used to elucidate the biological process of RA induction. Finally, we described a network for clarifying the relationship among the miRNAs, target genes and signaling pathways. These findings will be beneficial for understanding the induction mechanism and supporting the application of RA in stem cell transformation.
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Affiliation(s)
- Feihu Hu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China; Medical School, Southeast University, Nanjing, Jiangsu, China
| | - Peng Xu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
| | - Bo Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
| | - Gaojun Teng
- Medical School, Southeast University, Nanjing, Jiangsu, China; Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Southeast University, Nanjing, Jiangsu, China.
| | - Zhongdang Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China.
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Wu W, Liu S, Liang Y, Zhou Z, Liu X. MiR-7 inhibits progression of hepatocarcinoma by targeting KLF-4 and promises a novel diagnostic biomarker. Cancer Cell Int 2017; 17:31. [PMID: 28239300 PMCID: PMC5320717 DOI: 10.1186/s12935-017-0386-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 01/23/2017] [Indexed: 12/22/2022] Open
Abstract
Background MicroRNAs are 22–24 nt non-coding RNAs that bind to the 3′ UTR of target mRNAs, thereby inducing mRNA degradation or inhibiting mRNA translation. Due to their implication in the regulation of post-transcriptional processes, the role of miRNAs in hepatocellular carcinoma (HCC) has been extensively studied. However, the function of miR-7 in HCC remains to be demonstrated. Methods 50 paired HCC tissues and matched peritumor tissues from patients were collected. The mRNA level of miR-7 was detected by qRT-PCR. The protein level of Kruppel-like factor 4 (KLF-4) was determined by western blot. Cell proliferation and invasive ability were measured using MTT and transwell invasion assay, respectively. Results We demonstrated that miR-7 was downregulated in 50 HCC tissues and the low expression of miR-7 was significantly correlate with tumour size. Moreover, overexpression of miR-7 significantly inhibited the proliferation and invasion of HCC cells. Over 100 target genes of miR-7 were predicted by Targetscan, and KLF-4 was indicated as the most promising candidate. Luciferase report assay showed that KLF-4 could be silenced by miR-7, so as to restore the impairment of cell proliferation and invasion in HCC cells. Conclusions In summary, we revealed a role of miR-7-KLF-4 axis in HCC cells, and the combination of both biomarkers might improve HCC diagnosis.
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Affiliation(s)
- Weizhong Wu
- Department of General Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei China
| | - Sanguang Liu
- Department of Hepatobiliary Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei China
| | - Yunfei Liang
- Department of Hepatobiliary Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei China
| | - Zegao Zhou
- Department of Hepatobiliary Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei China
| | - Xueqing Liu
- Department of Hepatobiliary Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei China
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MiR-218 Induces Neuronal Differentiation of ASCs in a Temporally Sequential Manner with Fibroblast Growth Factor by Regulation of the Wnt Signaling Pathway. Sci Rep 2017; 7:39427. [PMID: 28045049 PMCID: PMC5206743 DOI: 10.1038/srep39427] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 11/22/2016] [Indexed: 12/22/2022] Open
Abstract
Differentiation of neural lineages from mesenchymal stem cells has raised the hope of generating functional cells as seed cells for nerve tissue engineering. As important gene regulators, microRNAs (miRNAs) have been speculated to play a vital role in accelerating stem cell differentiation and repairing neuron damage. However, miRNA roles in directing differentiation of stem cells in current protocols are underexplored and the mechanisms of miRNAs as regulators of neuronal differentiation remain ambiguous. In this study, we have determined that miR-218 serves as crucial constituent regulator in neuronal differentiation of adipose stem cells (ASCs) through Wnt signaling pathway based on comprehensive annotation of miRNA sequencing data. Moreover, we have also discovered that miR-218 and Fibroblast Growth Factor-2 (FGF2) modulate neuronal differentiation in a sequential manner. These findings provide additional understanding of the mechanisms regulating stem cell neuronal differentiation as well as a new method for neural lineage differentiation of ASCs.
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Tkatchenko AV, Luo X, Tkatchenko TV, Vaz C, Tanavde VM, Maurer-Stroh S, Zauscher S, Gonzalez P, Young TL. Large-Scale microRNA Expression Profiling Identifies Putative Retinal miRNA-mRNA Signaling Pathways Underlying Form-Deprivation Myopia in Mice. PLoS One 2016; 11:e0162541. [PMID: 27622715 PMCID: PMC5021328 DOI: 10.1371/journal.pone.0162541] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 08/24/2016] [Indexed: 12/16/2022] Open
Abstract
Development of myopia is associated with large-scale changes in ocular tissue gene expression. Although differential expression of coding genes underlying development of myopia has been a subject of intense investigation, the role of non-coding genes such as microRNAs in the development of myopia is largely unknown. In this study, we explored myopia-associated miRNA expression profiles in the retina and sclera of C57Bl/6J mice with experimentally induced myopia using microarray technology. We found a total of 53 differentially expressed miRNAs in the retina and no differences in miRNA expression in the sclera of C57BL/6J mice after 10 days of visual form deprivation, which induced -6.93 ± 2.44 D (p < 0.000001, n = 12) of myopia. We also identified their putative mRNA targets among mRNAs found to be differentially expressed in myopic retina and potential signaling pathways involved in the development of form-deprivation myopia using miRNA-mRNA interaction network analysis. Analysis of myopia-associated signaling pathways revealed that myopic response to visual form deprivation in the retina is regulated by a small number of highly integrated signaling pathways. Our findings highlighted that changes in microRNA expression are involved in the regulation of refractive eye development and predicted how they may be involved in the development of myopia by regulating retinal gene expression.
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Affiliation(s)
- Andrei V. Tkatchenko
- Department of Ophthalmology, College of Physicians and Surgeons, Columbia University, New York, New York, United States of America
- Department of Pathology and Cell Biology, College of Physicians and Surgeons, Columbia University, New York, New York, United States of America
- * E-mail: (AVT); (TLY)
| | - Xiaoyan Luo
- Department of Ophthalmology, School of Medicine, Duke University, Durham, North Carolina, United States of America
- Center for Human Genetics, School of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Tatiana V. Tkatchenko
- Department of Ophthalmology, College of Physicians and Surgeons, Columbia University, New York, New York, United States of America
| | - Candida Vaz
- Bioinformatics Institute, Agency for Science Technology and Research, Singapore, Singapore
| | - Vivek M. Tanavde
- Bioinformatics Institute, Agency for Science Technology and Research, Singapore, Singapore
- Institute for Medical Biology, A*STAR, Singapore, Singapore
| | - Sebastian Maurer-Stroh
- Bioinformatics Institute, Agency for Science Technology and Research, Singapore, Singapore
| | - Stefan Zauscher
- Department of Mechanical Engineering and Materials Science, Pratt School of Engineering, Duke University, Durham, North Carolina, United States of America
| | - Pedro Gonzalez
- Department of Ophthalmology, School of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Terri L. Young
- Department of Ophthalmology and Visual Sciences, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States of America
- * E-mail: (AVT); (TLY)
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Irie K, Tsujimura K, Nakashima H, Nakashima K. MicroRNA-214 Promotes Dendritic Development by Targeting the Schizophrenia-associated Gene Quaking (Qki). J Biol Chem 2016; 291:13891-904. [PMID: 27129236 DOI: 10.1074/jbc.m115.705749] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Indexed: 12/21/2022] Open
Abstract
Proper dendritic elaboration of neurons is critical for the formation of functional circuits during brain development. Defects in dendrite morphogenesis are associated with neuropsychiatric disorders, and microRNAs are emerging as regulators of aspects of neuronal maturation such as axonal and dendritic growth, spine formation, and synaptogenesis. Here, we show that miR-214 plays a pivotal role in the regulation of dendritic development. Overexpression of miR-214 increased dendrite size and complexity, whereas blocking of endogenous miR-214-3p, a mature form of miR-214, inhibited dendritic morphogenesis. We also found that miR-214-3p targets quaking (Qki), which is implicated in psychiatric diseases such as schizophrenia, through conserved target sites located in the 3'-untranslated region of Qki mRNA, thereby down-regulating Qki protein levels. Overexpression and knockdown of Qki impaired and enhanced dendritic formation, respectively. Moreover, overexpression of Qki abolished the dendritic growth induced by miR-214 overexpression. Taken together, our findings reveal a crucial role for the miR-214-Qki pathway in the regulation of neuronal dendritic development.
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Affiliation(s)
- Koichiro Irie
- From the Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Fukuoka 812-8582, Japan
| | - Keita Tsujimura
- From the Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Fukuoka 812-8582, Japan
| | - Hideyuki Nakashima
- From the Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Fukuoka 812-8582, Japan
| | - Kinichi Nakashima
- From the Department of Stem Cell Biology and Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Fukuoka 812-8582, Japan
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Li KC, Chang YH, Yeh CL, Hu YC. Healing of osteoporotic bone defects by baculovirus-engineered bone marrow-derived MSCs expressing MicroRNA sponges. Biomaterials 2016; 74:155-66. [DOI: 10.1016/j.biomaterials.2015.09.046] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Revised: 09/25/2015] [Accepted: 09/29/2015] [Indexed: 12/21/2022]
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Kabaria S, Choi DC, Chaudhuri AD, Jain MR, Li H, Junn E. MicroRNA-7 activates Nrf2 pathway by targeting Keap1 expression. Free Radic Biol Med 2015; 89:548-56. [PMID: 26453926 PMCID: PMC4684759 DOI: 10.1016/j.freeradbiomed.2015.09.010] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/25/2015] [Accepted: 09/28/2015] [Indexed: 12/30/2022]
Abstract
Nuclear factor E2-related factor 2 (Nrf2) is a key transcription factor that regulates the expression of a number of antioxidant and detoxifying genes that provide cellular protection against various stressors including reactive oxygen species (ROS). Nrf2 activity is tightly regulated by a cytoplasmic inhibitory protein called Kelch-like ECH-associated protein 1 (Keap1). The mechanism that controls Keap1 expression, however, remains poorly understood. In the present study, we demonstrate that microRNA-7 (miR-7), which is highly expressed in the brain, represses Keap1 expression by targeting the 3'-untranslated region (UTR) of its mRNA in human neuroblastoma cells, SH-SY5Y. Subsequently, this event results in an increased Nrf2 activity, as evidenced by an increase in the expression of its transcriptional targets, heme oxygenase 1 (HO-1) and glutamate-cysteine ligase modifier subunit (GCLM), and an enhanced nuclear localization of Nrf2. In addition, miR-7 decreases the intracellular hydroperoxides level and increases the level of reduced form of glutathione, indicative of oxidative stress relief. We also demonstrate that targeted repression of Keap1 and activation of Nrf2 pathway, in part, underlies the protective effects of miR-7 against 1-methyl-4-phenylpyridinium (MPP+)-induced toxicity in SH-SY5Y and differentiated human neural progenitor cells, ReNcell VM. These findings point to a new mechanism by which miR-7 exerts cytoprotective effects by regulating the Nrf2 pathway.
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Affiliation(s)
- Savan Kabaria
- Center for Neurodegenerative and Neuroimmunologic Diseases, Department of Neurology, Rutgers-Robert Wood Johnson Medical School, Piscataway, NJ., 08854, USA
| | - Doo Chul Choi
- Center for Neurodegenerative and Neuroimmunologic Diseases, Department of Neurology, Rutgers-Robert Wood Johnson Medical School, Piscataway, NJ., 08854, USA
| | - Amrita Datta Chaudhuri
- Center for Neurodegenerative and Neuroimmunologic Diseases, Department of Neurology, Rutgers-Robert Wood Johnson Medical School, Piscataway, NJ., 08854, USA
| | - Mohit Raja Jain
- Center for Advanced Proteomics Research, Rutgers-New Jersey Medical School, Newark, NJ., 07103, USA
| | - Hong Li
- Center for Advanced Proteomics Research, Rutgers-New Jersey Medical School, Newark, NJ., 07103, USA
| | - Eunsung Junn
- Center for Neurodegenerative and Neuroimmunologic Diseases, Department of Neurology, Rutgers-Robert Wood Johnson Medical School, Piscataway, NJ., 08854, USA.
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Horsham JL, Ganda C, Kalinowski FC, Brown RAM, Epis MR, Leedman PJ. MicroRNA-7: A miRNA with expanding roles in development and disease. Int J Biochem Cell Biol 2015; 69:215-24. [PMID: 26546742 DOI: 10.1016/j.biocel.2015.11.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 11/01/2015] [Accepted: 11/02/2015] [Indexed: 12/15/2022]
Abstract
MicroRNAs (miRNAs) are a family of short, non-coding RNA molecules (∼22nt) involved in post-transcriptional control of gene expression. They act via base-pairing with mRNA transcripts that harbour target sequences, resulting in accelerated mRNA decay and/or translational attenuation. Given miRNAs mediate the expression of molecules involved in many aspects of normal cell development and functioning, it is not surprising that aberrant miRNA expression is closely associated with many human diseases. Their pivotal role in driving a range of normal cellular physiology as well as pathological processes has established miRNAs as potential therapeutics, as well as potential diagnostic and prognostic tools in human health. MicroRNA-7 (miR-7) is a highly conserved miRNA which displays restricted spatiotemporal expression during development and in maturity. In humans and mice, mature miR-7 is generated from three different genes, illustrating unexpected redundancy and also the importance of this miRNA in regulating key cellular processes. In this review we examine the expanding role of miR-7 in the context of health, with emphasis on organ differentiation and development, as well as in various mammalian diseases, particularly of the brain, heart, endocrine pancreas and skin, as well as in cancer. The more we learn about miR-7, the more we realise the complexity of its regulation and potential functional application both from a biomarker and therapeutic perspective.
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Affiliation(s)
- Jessica L Horsham
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia; School of Medicine and Pharmacology, University of Western Australia, Nedlands, WA 6009, Australia
| | - Clarissa Ganda
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia
| | - Felicity C Kalinowski
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia
| | - Rikki A M Brown
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia
| | - Michael R Epis
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia
| | - Peter J Leedman
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia; School of Medicine and Pharmacology, University of Western Australia, Nedlands, WA 6009, Australia.
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RNA-Binding Proteins in the Regulation of miRNA Activity: A Focus on Neuronal Functions. Biomolecules 2015; 5:2363-87. [PMID: 26437437 PMCID: PMC4693239 DOI: 10.3390/biom5042363] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/16/2015] [Accepted: 09/23/2015] [Indexed: 02/07/2023] Open
Abstract
Posttranscriptional modifications of messenger RNAs (mRNAs) are key processes in the fine-tuning of cellular homeostasis. Two major actors in this scenario are RNA binding proteins (RBPs) and microRNAs (miRNAs) that together play important roles in the biogenesis, turnover, translation and localization of mRNAs. This review will highlight recent advances in the understanding of the role of RBPs in the regulation of the maturation and the function of miRNAs. The interplay between miRNAs and RBPs is discussed specifically in the context of neuronal development and function.
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48
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Santos MCT, Tegge AN, Correa BR, Mahesula S, Kohnke LQ, Qiao M, Ferreira MAR, Kokovay E, Penalva LOF. miR-124, -128, and -137 Orchestrate Neural Differentiation by Acting on Overlapping Gene Sets Containing a Highly Connected Transcription Factor Network. Stem Cells 2015; 34:220-32. [PMID: 26369286 DOI: 10.1002/stem.2204] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 08/14/2015] [Indexed: 12/19/2022]
Abstract
The ventricular-subventricular zone harbors neural stem cells (NSCs) that can differentiate into neurons, astrocytes, and oligodendrocytes. This process requires loss of stem cell properties and gain of characteristics associated with differentiated cells. miRNAs function as important drivers of this transition; miR-124, -128, and -137 are among the most relevant ones and have been shown to share commonalities and act as proneurogenic regulators. We conducted biological and genomic analyses to dissect their target repertoire during neurogenesis and tested the hypothesis that they act cooperatively to promote differentiation. To map their target genes, we transfected NSCs with antagomiRs and analyzed differences in their mRNA profile throughout differentiation with respect to controls. This strategy led to the identification of 910 targets for miR-124, 216 for miR-128, and 652 for miR-137. The target sets show extensive overlap. Inspection by gene ontology and network analysis indicated that transcription factors are a major component of these miRNAs target sets. Moreover, several of these transcription factors form a highly interconnected network. Sp1 was determined to be the main node of this network and was further investigated. Our data suggest that miR-124, -128, and -137 act synergistically to regulate Sp1 expression. Sp1 levels are dramatically reduced as cells differentiate and silencing of its expression reduced neuronal production and affected NSC viability and proliferation. In summary, our results show that miRNAs can act cooperatively and synergistically to regulate complex biological processes like neurogenesis and that transcription factors are heavily targeted to branch out their regulatory effect.
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Affiliation(s)
- Márcia C T Santos
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA.,Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Allison N Tegge
- Department of Computer Science, Virginia Tech, Blacksburg, Virginia, USA.,Department of Statistics, Virginia Tech, Blacksburg, Virginia, USA
| | - Bruna R Correa
- Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA.,Centro de Oncologia Molecular, Hospital Sírio-Libanês, São Paulo, Brazil
| | - Swetha Mahesula
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Luana Q Kohnke
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA.,Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Mei Qiao
- Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | | | - Erzsebet Kokovay
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Luiz O F Penalva
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA.,Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
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49
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Horsham JL, Kalinowski FC, Epis MR, Ganda C, Brown RAM, Leedman PJ. Clinical Potential of microRNA-7 in Cancer. J Clin Med 2015; 4:1668-87. [PMID: 26308064 PMCID: PMC4600152 DOI: 10.3390/jcm4091668] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/17/2015] [Accepted: 08/17/2015] [Indexed: 12/18/2022] Open
Abstract
microRNAs (miRNAs) are a family of short, non-coding RNA molecules that drive a complex network of post-transcriptional gene regulation by enhancing target mRNA decay and/or inhibiting protein synthesis from mRNA transcripts. They regulate genes involved in key aspects of normal cell growth, development and the maintenance of body homeostasis and have been closely linked to the development and progression of human disease, in particular cancer. Over recent years there has been much interest regarding their potential as biomarkers and as therapeutic agents or targets. microRNA-7 (miR-7) is a 23 nucleotide (nt) miRNA known primarily to act as a tumour suppressor. miR-7 directly inhibits a number of oncogenic targets and impedes various aspects of cancer progression in vitro and in vivo, however, some studies have also implicated miR-7 in oncogenic roles. This review summarises the role of miR-7 in cancer, its potential in miRNA-based replacement therapy and its capacity as both a diagnostic and prognostic biomarker.
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Affiliation(s)
- Jessica L Horsham
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia.
- School of Medicine and Pharmacology, University of Western Australia, Nedlands, WA 6009, Australia.
| | - Felicity C Kalinowski
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia.
| | - Michael R Epis
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia.
| | - Clarissa Ganda
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia.
| | - Rikki A M Brown
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia.
| | - Peter J Leedman
- Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia.
- School of Medicine and Pharmacology, University of Western Australia, Nedlands, WA 6009, Australia.
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50
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Wang ZH, Zhang JL, Duan YL, Zhang QS, Li GF, Zheng DL. MicroRNA-214 participates in the neuroprotective effect of Resveratrol via inhibiting α-synuclein expression in MPTP-induced Parkinson’s disease mouse. Biomed Pharmacother 2015; 74:252-6. [DOI: 10.1016/j.biopha.2015.08.025] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 08/05/2015] [Indexed: 01/08/2023] Open
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