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Vaghf A, Sadegh M, Khansarinejad B, Mondanizadeh M. MicroRNA-124-3p targets Sp1 transcription factor to regulate glioma progression in rats. Gene 2024; 930:148858. [PMID: 39153708 DOI: 10.1016/j.gene.2024.148858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/13/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Gliomas are the most prevalent malignancies of the central nervous system (CNS). Downregulation of microRNA‑124 (miR‑124) has been identified in glioma; however, its biological functions in glioma are not yet fully understood. Specificity protein 1 (SP1) is a type of transcription factor that is involved in cancer progression. In this study, we examined the targeting of Sp1 mRNA by miR-124-3p in a rat glioma model. After confirming and selecting the binding of Sp1 to miR-124 with the help of bioinformatics methods, adult male Wistar rats were used to induce glioma by microinjection of 1 × 106 C6 cells into the striatum area of brain. The rats were divided into 3 groups; intact, sham and glioma groups. The presence of glioma was confirmed 21 days after implantation through histological analysis. The expression levels of miR-124 and SP1 genes in the experimental groups were examined using quantitative real-time polymerase chain reaction (qRT-PCR). Our data showed that the expression of miR-124 was significantly downregulated in glioma group compared to the sham and intact group, while the expression of SP1 was significantly upregulated. We found that the expression levels of miR-124 and Sp1 were decreased and increased in C6 cell line compared to the normal brain tissue cell line, respectively. The results indicated that Sp1 was identified as a direct target of miR‑124 through luciferase reporter assays. In summary, this study demonstrated for the first time that miR-124 expression is downregulated and Sp1 expression is upregulated in an animal model of glioma, which, in turn, may be involved in the development of glioma brain cancer.
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Affiliation(s)
- Atena Vaghf
- Department of Biotechnology and Molecular Medicine, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Mehdi Sadegh
- Departments of Physiology, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | | | - Mahdieh Mondanizadeh
- Department of Biotechnology and Molecular Medicine, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran; Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran.
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2
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Wang Z, Bi M, Zhe X, Wang X, Dai B, Han X, Ren B, Liang H, Liu D. Molecular mechanism underlying miR-204-5p regulation of adipose-derived stem cells differentiation into cells from three germ layers. Cell Death Discov 2024; 10:95. [PMID: 38388551 PMCID: PMC10884001 DOI: 10.1038/s41420-024-01852-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 02/03/2024] [Accepted: 02/06/2024] [Indexed: 02/24/2024] Open
Abstract
The limited differentiation ability of adipose-derived stem cells (ADSCs) limits their application in stem cell therapy and regenerative medicine. Here, we explore the molecular mechanism by which miR-204-5p regulates ADSCs differentiation into cells derived from the three germ layers (i.e., adipocytes, neurocytes, and hepatocytes). Although miR-204-5p overexpression inhibited ADSCs differentiation into adipocytes, neurocyte and hepatocyte differentiation were promoted. Mechanistically, miR-204-5p inhibited the expression of PPARG by regulating the AMPK signaling pathway, thereby inhibiting ADSCs differentiation into adipocytes. Further, miR-204-5p regulated JAG1/NOTCH3 axis for the inhibition of differentiation into adipocytes and promotion of differentiation into neurocytes. miR-204-5p might also promote ADSCs differentiation into hepatocytes by upregulating E2F8. The findings of this study provide novel insights into the regulatory mechanisms underlying early embryonic development and will help to facilitate the application of ADSCs in stem cell therapy and regenerative medicine.
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Affiliation(s)
- Zhimin Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
- Reproductive Medicine Center, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050, P.R. China
| | - Meiyu Bi
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Xiaoshu Zhe
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Xiao Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Bai Dai
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
- Reproductive Medicine Center, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050, P.R. China
| | - Xiaoyu Han
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Bingxu Ren
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Hao Liang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China
| | - Dongjun Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, P.R. China.
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3
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Zhao E, Wang D, Jing L, Zhao Z, Huang S, Xie L, Hu S, Liang H, Chen Y. MicroRNA-124a regulates the differentiation of bone marrow mesenchymal stem cells into neurons. J Recept Signal Transduct Res 2023; 43:154-159. [PMID: 38226608 DOI: 10.1080/10799893.2024.2303014] [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: 10/23/2023] [Accepted: 12/23/2023] [Indexed: 01/17/2024]
Abstract
OBJECTIVE This study investigated the effects of microRNA-124a on the differentiation of bone marrow mesenchymal stem cells (BMSCs) and its underlying mechanism. METHODS Flow cytometry was used for isolation and identification of BMSCs. Real-time polymerase chain reaction (RT-PCR) was used to detect gene mRNA expression. Apoptosis was detected using Annexin V-FITC/PI Apoptosis Detection Kit. Cell proliferation ability was tested using Cell Counting Kit-8 (CCK-8). The differentiation of BMSCs into neuron inducers β-thiol ethanol or baicalin formed the basis of the study. RESULTS β-thiol ethanol markedly suppressed the microRNA-124a expression of BMSCs, baicalin markedly induced the microRNA-124a expression of BMSCs and β-thiol ethanol or baicalin promoted apoptosis and reduced the growth of BMSCs. Only the microRNA-124a inhibitor did not affect apoptosis or the differentiation of BMSCs, and it increased the effects of β-thiol ethanol or baicalin on the apoptosis of BMSCs. CONCLUSION β-thiol ethanol and baicalin treatment could affect microRNA-124a expression in BMSCs. We demonstrated that microRNA-124a promoted the differentiation of BMSCs into neurons.
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Affiliation(s)
- Eryi Zhao
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Daimei Wang
- Department of Pharmacy, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Lijun Jing
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhongyan Zhao
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Shixiong Huang
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Ling Xie
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Shijun Hu
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Hui Liang
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
| | - Yanquan Chen
- Department of Neurology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou City, China
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4
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Zhou JQ, Wan HY, Wang ZX, Jiang N. Stimulating factors for regulation of osteogenic and chondrogenic differentiation of mesenchymal stem cells. World J Stem Cells 2023; 15:369-384. [PMID: 37342227 PMCID: PMC10277964 DOI: 10.4252/wjsc.v15.i5.369] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/21/2023] [Accepted: 03/29/2023] [Indexed: 05/26/2023] Open
Abstract
Mesenchymal stem cells (MSCs), distributed in many tissues in the human body, are multipotent cells capable of differentiating in specific directions. It is usually considered that the differentiation process of MSCs depends on specialized external stimulating factors, including cell signaling pathways, cytokines, and other physical stimuli. Recent findings have revealed other underrated roles in the differentiation process of MSCs, such as material morphology and exosomes. Although relevant achievements have substantially advanced the applicability of MSCs, some of these regulatory mechanisms still need to be better understood. Moreover, limitations such as long-term survival in vivo hinder the clinical application of MSCs therapy. This review article summarizes current knowledge regarding the differentiation patterns of MSCs under specific stimulating factors.
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Affiliation(s)
- Jia-Qi Zhou
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Hao-Yang Wan
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Zi-Xuan Wang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
| | - Nan Jiang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China
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5
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Zhou H, He Y, Xiong W, Jing S, Duan X, Huang Z, Nahal GS, Peng Y, Li M, Zhu Y, Ye Q. MSC based gene delivery methods and strategies improve the therapeutic efficacy of neurological diseases. Bioact Mater 2023; 23:409-437. [PMCID: PMC9713256 DOI: 10.1016/j.bioactmat.2022.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/08/2022] [Accepted: 11/13/2022] [Indexed: 12/05/2022] Open
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6
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Lafferty MJ, Aygün N, Patel NK, Krupa O, Liang D, Wolter JM, Geschwind DH, de la Torre-Ubieta L, Stein JL. MicroRNA-eQTLs in the developing human neocortex link miR-4707-3p expression to brain size. eLife 2023; 12:e79488. [PMID: 36629315 PMCID: PMC9859047 DOI: 10.7554/elife.79488] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 01/10/2023] [Indexed: 01/12/2023] Open
Abstract
Expression quantitative trait loci (eQTL) data have proven important for linking non-coding loci to protein-coding genes. But eQTL studies rarely measure microRNAs (miRNAs), small non-coding RNAs known to play a role in human brain development and neurogenesis. Here, we performed small-RNA sequencing across 212 mid-gestation human neocortical tissue samples, measured 907 expressed miRNAs, discovering 111 of which were novel, and identified 85 local-miRNA-eQTLs. Colocalization of miRNA-eQTLs with GWAS summary statistics yielded one robust colocalization of miR-4707-3p expression with educational attainment and brain size phenotypes, where the miRNA expression increasing allele was associated with decreased brain size. Exogenous expression of miR-4707-3p in primary human neural progenitor cells decreased expression of predicted targets and increased cell proliferation, indicating miR-4707-3p modulates progenitor gene regulation and cell fate decisions. Integrating miRNA-eQTLs with existing GWAS yielded evidence of a miRNA that may influence human brain size and function via modulation of neocortical brain development.
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Affiliation(s)
- Michael J Lafferty
- Department of Genetics, University of North Carolina at Chapel HillChapel HillUnited States
- UNC Neuroscience Center, University of North Carolina at Chapel HillChapel HillUnited States
| | - Nil Aygün
- Department of Genetics, University of North Carolina at Chapel HillChapel HillUnited States
- UNC Neuroscience Center, University of North Carolina at Chapel HillChapel HillUnited States
| | - Niyanta K Patel
- Department of Genetics, University of North Carolina at Chapel HillChapel HillUnited States
- UNC Neuroscience Center, University of North Carolina at Chapel HillChapel HillUnited States
| | - Oleh Krupa
- Department of Genetics, University of North Carolina at Chapel HillChapel HillUnited States
- UNC Neuroscience Center, University of North Carolina at Chapel HillChapel HillUnited States
| | - Dan Liang
- Department of Genetics, University of North Carolina at Chapel HillChapel HillUnited States
- UNC Neuroscience Center, University of North Carolina at Chapel HillChapel HillUnited States
| | - Justin M Wolter
- Department of Genetics, University of North Carolina at Chapel HillChapel HillUnited States
- UNC Neuroscience Center, University of North Carolina at Chapel HillChapel HillUnited States
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel HillChapel HillUnited States
- Carolina Institute for Developmental Disabilities, The University of North Carolina at Chapel HillChapel HillUnited States
| | - Daniel H Geschwind
- Neurogenetics Program, Department of Neurology, David Geffen School of Medicine, University of California, Los AngelesLos AngelesUnited States
- Center for Autism Research and Treatment, Semel Institute, David Geffen School of Medicine, University of California, Los AngelesLos AngelesUnited States
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los AngelesLos AngelesUnited States
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute, David Geffen School of Medicine, University of California, Los AngelesLos AngelesUnited States
| | - Luis de la Torre-Ubieta
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute, David Geffen School of Medicine, University of California, Los AngelesLos AngelesUnited States
| | - Jason L Stein
- Department of Genetics, University of North Carolina at Chapel HillChapel HillUnited States
- UNC Neuroscience Center, University of North Carolina at Chapel HillChapel HillUnited States
- Carolina Institute for Developmental Disabilities, The University of North Carolina at Chapel HillChapel HillUnited States
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7
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Derkus B, Isik M, Eylem CC, Ergin I, Camci CB, Bilgin S, Elbuken C, Arslan YE, Akkulak M, Adali O, Kiran F, Okesola BO, Nemutlu E, Emregul E. Xenogenic Neural Stem Cell-Derived Extracellular Nanovesicles Modulate Human Mesenchymal Stem Cell Fate and Reconstruct Metabolomic Structure. Adv Biol (Weinh) 2022; 6:e2101317. [PMID: 35347890 DOI: 10.1002/adbi.202101317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/02/2022] [Indexed: 01/27/2023]
Abstract
Extracellular nanovesicles, particularly exosomes, can deliver their diverse bioactive biomolecular content, including miRNAs, proteins, and lipids, thus providing a context for investigating the capability of exosomes to induce stem cells toward lineage-specific cells and tissue regeneration. In this study, it is demonstrated that rat subventricular zone neural stem cell-derived exosomes (rSVZ-NSCExo) can control neural-lineage specification of human mesenchymal stem cells (hMSCs). Microarray analysis shows that the miRNA content of rSVZ-NSCExo is a faithful representation of rSVZ tissue. Through immunocytochemistry, gene expression, and multi-omics analyses, the capability to use rSVZ-NSCExo to induce hMSCs into a neuroglial or neural stem cell phenotype and genotype in a temporal and dose-dependent manner via multiple signaling pathways is demonstrated. The current study presents a new and innovative strategy to modulate hMSCs fate by harnessing the molecular content of exosomes, thus suggesting future opportunities for rSVZ-NSCExo in nerve tissue regeneration.
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Affiliation(s)
- Burak Derkus
- Stem Cell Research Lab, Department of ChemistryFaculty of Science, Ankara University, Ankara, 06560, Turkey.,Interdisciplinary Research Unit for Advanced Materials (INTRAM) Department of Chemistry, Faculty of Science, Ankara University, Ankara, 06560, Turkey
| | - Melis Isik
- Interdisciplinary Research Unit for Advanced Materials (INTRAM) Department of Chemistry, Faculty of Science, Ankara University, Ankara, 06560, Turkey
| | - Cemil Can Eylem
- Analytical Chemistry Division, Faculty of Pharmacy, Hacettepe University, Ankara, 06530, Turkey
| | - Irem Ergin
- Department of Surgery, Faculty of Veterinary Medicine, Ankara University, Turkey
| | - Can Berk Camci
- Interdisciplinary Research Unit for Advanced Materials (INTRAM) Department of Chemistry, Faculty of Science, Ankara University, Ankara, 06560, Turkey
| | - Sila Bilgin
- Interdisciplinary Research Unit for Advanced Materials (INTRAM) Department of Chemistry, Faculty of Science, Ankara University, Ankara, 06560, Turkey
| | - Caglar Elbuken
- UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey.,Faculty of Biochemistry and Molecular Medicine, Faculty of Medicine, University of Oulu, Oulu, 90014, Finland
| | - Yavuz Emre Arslan
- Regenerative Biomaterials Laboratory, Department of Bioengineering, Engineering Faculty, Canakkale Onsekiz Mart University, Canakkale, 17100, Turkey
| | - Merve Akkulak
- Department of Biological Sciences, Faculty of Science, Middle East Technical University, Ankara, 06800, Turkey
| | - Orhan Adali
- Department of Biological Sciences, Faculty of Science, Middle East Technical University, Ankara, 06800, Turkey
| | - Fadime Kiran
- Department of Biology, Faculty of Science, Ankara University, Ankara, 06560, Turkey
| | - Babatunde O Okesola
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, Faculty of Medicine, University of Liverpool, Liverpool, L7 8TX, UK
| | - Emirhan Nemutlu
- Analytical Chemistry Division, Faculty of Pharmacy, Hacettepe University, Ankara, 06530, Turkey.,Bioanalytic and Omics Laboratory, Faculty of Pharmacy, Hacettepe University, Ankara, 06530, Turkey
| | - Emel Emregul
- Interdisciplinary Research Unit for Advanced Materials (INTRAM) Department of Chemistry, Faculty of Science, Ankara University, Ankara, 06560, Turkey
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8
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Duly AMP, Kao FCL, Teo WS, Kavallaris M. βIII-Tubulin Gene Regulation in Health and Disease. Front Cell Dev Biol 2022; 10:851542. [PMID: 35573698 PMCID: PMC9096907 DOI: 10.3389/fcell.2022.851542] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 04/07/2022] [Indexed: 11/24/2022] Open
Abstract
Microtubule proteins form a dynamic component of the cytoskeleton, and play key roles in cellular processes, such as vesicular transport, cell motility and mitosis. Expression of microtubule proteins are often dysregulated in cancer. In particular, the microtubule protein βIII-tubulin, encoded by the TUBB3 gene, is aberrantly expressed in a range of epithelial tumours and is associated with drug resistance and aggressive disease. In normal cells, TUBB3 expression is tightly restricted, and is found almost exclusively in neuronal and testicular tissues. Understanding the mechanisms that control TUBB3 expression, both in cancer, mature and developing tissues will help to unravel the basic biology of the protein, its role in cancer, and may ultimately lead to the development of new therapeutic approaches to target this protein. This review is devoted to the transcriptional and posttranscriptional regulation of TUBB3 in normal and cancerous tissue.
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Affiliation(s)
- Alastair M. P. Duly
- Children’s Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Randwick, NSW, Australia
| | - Felicity C. L. Kao
- Children’s Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Randwick, NSW, Australia
- Australian Center for NanoMedicine, UNSW Sydney, Sydney, NSW, Australia
- School of Women and Children’s Health, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Wee Siang Teo
- Children’s Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Randwick, NSW, Australia
- Australian Center for NanoMedicine, UNSW Sydney, Sydney, NSW, Australia
| | - Maria Kavallaris
- Children’s Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Randwick, NSW, Australia
- Australian Center for NanoMedicine, UNSW Sydney, Sydney, NSW, Australia
- School of Women and Children’s Health, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
- UNSW RNA Institute, UNSW Sydney, Sydney, NSW, Australia
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9
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Fan C, Li Y, Lan T, Wang W, Long Y, Yu SY. Microglia secrete miR-146a-5p-containing exosomes to regulate neurogenesis in depression. Mol Ther 2022; 30:1300-1314. [PMID: 34768001 PMCID: PMC8899528 DOI: 10.1016/j.ymthe.2021.11.006] [Citation(s) in RCA: 76] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/20/2021] [Accepted: 11/03/2021] [Indexed: 12/13/2022] Open
Abstract
Enhancing neurogenesis within the hippocampal dentate gyrus (DG) is critical for maintaining brain development and function in many neurological diseases. However, the neural mechanisms underlying neurogenesis in depression remain unclear. Here, we show that microglia transfer a microglia-enriched microRNA, miR-146a-5p, via secreting exosomes to inhibit neurogenesis in depression. Overexpression of miR-146a-5p in hippocampal DG suppresses neurogenesis and spontaneous discharge of excitatory neurons by directly targeting Krüppel-like factor 4 (KLF4). Downregulation of miR-146a-5p expression ameliorates adult neurogenesis deficits in DG regions and depression-like behaviors in rats. Intriguingly, circular RNA ANKS1B acts as a miRNA sequester for miR-146a-5p to mediate post-transcriptional regulation of KLF4 expression. Collectively, these results indicate that miR-146a-5p can function as a critical factor regulating neurogenesis under conditions of pathological processes resulting from depression and suggest that microglial exosomes generate new crosstalk channels between glial cells and neurons.
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Affiliation(s)
- Cuiqin Fan
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Ye Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Tian Lan
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Wenjing Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Yifei Long
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Shu Yan Yu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China; Shandong Provincial Key Laboratory of Mental Disorders, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.
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10
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Mokabber H, Vatankhah MA, Najafzadeh N. The regulatory role of microRNAs in the development, cyclic changes, and cell differentiation of the hair follicle. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.01.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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11
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Beyrampour-Basmenj H, Rahmati M, Moghamddam MP, Kalan ME, Alivand M, Aliyari-Serej Z, Nastarin P, Omrani M, Khodakarimi S, Ebrahimi-Kalan A. Association between miRNAs expression and multiple sclerosis pathogenesis: A novel therapeutic approach. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2021.101457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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IL-1β promotes hypoxic vascular endothelial cell proliferation through the miR-24-3p/NKAP/NF-kB axis. Biosci Rep 2022; 42:230630. [PMID: 35005769 PMCID: PMC8766822 DOI: 10.1042/bsr20212062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/26/2021] [Indexed: 11/17/2022] Open
Abstract
Purpose: Our previous data indicated that miR-24-3p is involved in the regulation of vascular endothelial cell (EC) proliferation and migration/invasion. However, whether IL-1β affects hypoxic HUVECs by miR-24-3p is still unclear. Therefore, the present study aimed to investigate the role and underlying mechanism of interleukin 1β (IL-1β) in hypoxic HUVECs. Methods: We assessed the mRNA expression levels of miR-24-3p, hypoxia-inducible factor-1α (HIF1A) and NF-κB-activating protein (NKAP) by quantitative real-time polymerase chain reaction (RT-qPCR). ELISA measured the expression level of IL-1β. Cell counting kit-8 (CCK-8) assays evaluated the effect of miR-24-3p or si-NKAP+miR-24 on cell proliferation (with or without IL-1β). Transwell migration and invasion assays were used to examine the effects of miR-24-3p or si-NKAP+miR-24-3p on cell migration and invasion (with or without IL-1β). Luciferase reporter assays were used to identify the target of miR-24-3p. Results: We demonstrated that in acute myocardial infarction (AMI) patient blood samples, the expression of miR-24-3p is down-regulated, the expression of IL-1β or NKAP is up-regulated, and IL-1β or NKAP is negatively correlated with miR-24-3p. Furthermore, IL-1β promotes hypoxic HUVECs proliferation by down-regulating miR-24-3p. In addition, IL-1β also significantly promotes the migration and invasion of hypoxic HUVECs; overexpression of miR-24-3p can partially rescue hypoxic HUVECs migration and invasion. Furthermore, we discovered that NKAP is a novel target of miR-24-3p in hypoxic HUVECs. Moreover, both the overexpression of miR-24-3p and the suppression of NKAP can inhibit the NF-κB/pro-IL-1β signaling pathway. However, IL-1β mediates suppression of miR-24-3p activity, leading to activation of the NKAP/NF-κB pathway. In conclusion, our results reveal a new function of IL-1β in suppressing miR-24-3p up-regulation of the NKAP/NF-κB pathway.
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13
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Emerging role of microRNAs as novel targets of antidepressants. Asian J Psychiatr 2021; 66:102906. [PMID: 34740127 DOI: 10.1016/j.ajp.2021.102906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/20/2021] [Indexed: 12/31/2022]
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14
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The role of microRNAs in diseases and related signaling pathways. Mol Biol Rep 2021; 49:6789-6801. [PMID: 34718938 DOI: 10.1007/s11033-021-06725-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/27/2021] [Indexed: 10/19/2022]
Abstract
MicroRNAs (miRNAs) are epigenetic regulators of the gene expression and act through posttranslational modification. They bind to 3'-UTR of target mRNAs to inhibit translation or increase the degradation mRNA in many tissues. Any alteration in the level of miRNA expression in many human diseases indicates their involvement in the pathogenesis of many diseases. On the other hand, the regulation of the signaling pathways is necessary for the maintenance of natural and physiological characteristics of any cell. It is worth mentioning that dysfunction of the signaling pathways manifests itself as a disorder or disease. The significant evidence report that miRNAs regulate the several signaling pathways in many diseases. Base on previous studies, miRNAs can be used for therapeutic or diagnostic purposes. According to the important role of miRNAs on the cell signaling pathways, this article reviews miRNAs involvement in incidence of diseases by changing signaling pathways.
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Luo Y, Qiu W, Wu B, Fang F. An Overview of Mesenchymal Stem Cell-based Therapy Mediated by Noncoding RNAs in the Treatment of Neurodegenerative Diseases. Stem Cell Rev Rep 2021; 18:457-473. [PMID: 34347272 DOI: 10.1007/s12015-021-10206-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2021] [Indexed: 12/11/2022]
Abstract
Mesenchymal stem cells (MSCs) have become a promising tool for neurorestorative therapy of neurodegenerative diseases (NDDs), which are mainly characterized by the progressive and irreversible loss of neuronal structure and function in the central or peripheral nervous system. Recently, studies have reported that genetic manipulation mediated by noncoding RNAs (ncRNAs) can increase survival and neural regeneration of transplanted MSCs, offering a new strategy for clinical translation. In this review, we summarize the potential role and regulatory mechanism of two major types of ncRNAs, including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), during the neurogenesis of MSCs with gene expression profile analyses. We also overview the realization of MSC-based therapy mediated by ncRNAs in the treatment of spinal cord injury, stroke, Alzheimer's disease and peripheral nerve injury. It is expected that ncRNAs will become promising therapeutic targets for NDD on stem cells, while the underlying mechanisms require further exploration.
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Affiliation(s)
- Yifei Luo
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, People's Republic of China
| | - Wei Qiu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, People's Republic of China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, People's Republic of China
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, 143 Dongzong Road, Pingshan District, Shenzhen, 518118, People's Republic of China
| | - Fuchun Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, People's Republic of China.
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16
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Yadav P, Bandyopadhayaya S, Ford BM, Mandal C. Interplay between DNA Methyltransferase 1 and microRNAs During Tumorigenesis. Curr Drug Targets 2021; 22:1129-1148. [PMID: 33494674 DOI: 10.2174/1389450122666210120141546] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/16/2020] [Accepted: 10/18/2020] [Indexed: 01/18/2023]
Abstract
Cancer is a genetic disease resulting from genomic changes; however, epigenetic alterations act synergistically with these changes during tumorigenesis and cancer progression. Epigenetic variations are gaining more attention as an important regulator in tumor progression, metastasis and therapy resistance. Aberrant DNA methylation at CpG islands is a central event in epigeneticmediated gene silencing of various tumor suppressor genes. DNA methyltransferase 1 (DNMT1) predominately methylates at CpG islands on hemimethylated DNA substrates in proliferation of cells. DNMT1 has been shown to be overexpressed in various cancer types and exhibits tumor-promoting potential. The major drawbacks to DNMT1-targeted cancer therapy are the adverse effects arising from nucleoside and non-nucleoside based DNMT1 inhibitors. This paper focuses on the regulation of DNMT1 by various microRNAs (miRNAs), which may be assigned as future DNMT1 modulators, and highlights how DNMT1 regulates various miRNAs involved in tumor suppression. Importantly, the role of reciprocal inhibition between DNMT1 and certain miRNAs in tumorigenic potential is approached in this review. Hence, this review seeks to project an efficient and strategic approach using certain miRNAs in conjunction with conventional DNMT1 inhibitors as a novel cancer therapy. It has also been pinpointed to select miRNA candidates associated with DNMT1 regulation that may not only serve as potential biomarkers for cancer diagnosis and prognosis, but may also predict the existence of aberrant methylation activity in cancer cells.
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Affiliation(s)
- Pooja Yadav
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh- 305817, Ajmer, Rajasthan, India
| | - Shreetama Bandyopadhayaya
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh- 305817, Ajmer, Rajasthan, India
| | - Bridget M Ford
- Department of Biology, University of the Incarnate Word, San Antonio, TX 78209, United States
| | - Chandi Mandal
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh- 305817, Ajmer, Rajasthan, India
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Suster I, Feng Y. Multifaceted Regulation of MicroRNA Biogenesis: Essential Roles and Functional Integration in Neuronal and Glial Development. Int J Mol Sci 2021; 22:ijms22136765. [PMID: 34201807 PMCID: PMC8269442 DOI: 10.3390/ijms22136765] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are small, non-coding RNAs that function as endogenous gene silencers. Soon after the discovery of miRNAs, a subset of brain-enriched and brain-specific miRNAs were identified and significant advancements were made in delineating miRNA function in brain development. However, understanding the molecular mechanisms that regulate miRNA biogenesis in normal and diseased brains has become a prevailing challenge. Besides transcriptional regulation of miRNA host genes, miRNA processing intermediates are subjected to multifaceted regulation by canonical miRNA processing enzymes, RNA binding proteins (RBPs) and epitranscriptomic modifications. Further still, miRNA activity can be regulated by the sponging activity of other non-coding RNA classes, namely circular RNAs (circRNAs) and long non-coding RNAs (lncRNAs). Differential abundance of these factors in neuronal and glial lineages partly underlies the spatiotemporal expression and function of lineage-specific miRNAs. Here, we review the continuously evolving understanding of the regulation of neuronal and glial miRNA biogenesis at the transcriptional and posttranscriptional levels and the cooperativity of miRNA species in targeting key mRNAs to drive lineage-specific development. In addition, we review dysregulation of neuronal and glial miRNAs and the detrimental impacts which contribute to developmental brain disorders.
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Affiliation(s)
| | - Yue Feng
- Correspondence: ; Tel.: +1-404-727-0351
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18
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Singh V, Kumar K, Purohit D, Verma R, Pandey P, Bhatia S, Malik V, Mittal V, Rahman MH, Albadrani GM, Arafah MW, El-Demerdash FM, Akhtar MF, Saleem A, Kamel M, Najda A, Abdel-Daim MM, Kaushik D. Exploration of therapeutic applicability and different signaling mechanism of various phytopharmacological agents for treatment of breast cancer. Biomed Pharmacother 2021; 139:111584. [PMID: 34243623 DOI: 10.1016/j.biopha.2021.111584] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Cancer is one of the most dreaded diseases characterized by uncontrolled proliferation of abnormal cells that occurs due to impairment of cell division and apoptosis process. Cancer is categorized into several types on the basis of affected organs and breast cancer (BC) is the most predominant cause of mortality among women. Although, several synthetic and semi-synthetic therapies have been developed for the treatment of BC but they exhibit numerous serious adverse effects therefore; pharmacological agents with fewer/no side effects need to be explored. Plants and phytoconstituents perhaps fulfill the aforementioned requirement and could serve as a potential and alternative therapy for BC treatment. The ongoing biomedical research, clinical trials and number of patents granted have further boosted the acceptance of the plants and plant-derived constituents in the effective treatment of BC. PURPOSE OF STUDY Various treatment strategies such as checkpoint inhibitors, targeting micro RNA, apoptotic pathway, BRCA-1 gene, P53 protein, P13K/Akt/mTOR pathway, notch signaling pathway, hedgehog/gli-1 signaling pathway, poly-ADP ribose polymerase inhibitors, mitogen-activated protein kinase inhibitors etc. are available for BC. In addition to these synthetic and semi-synthetic drug therapies, several natural constituents such as alkaloids, sesquiterpenes, polyphenols, flavonoids and diterpenoids from medicinal plants, vegetables and fruits are reported to possess promising anti-cancer activity. The purpose of the present review is to highlight the various signaling pathways through which plants/herbs show the anti-cancer potential especially against the BC. STUDY DESIGN The literature for the present study was collected from various databases such as Pubmed, Scopus, Chemical Abstracts, Medicinal and aromatic plant abstracts, Web of Science etc. The different patent databases were also reviewed for the anti-cancer (BC) potential of the particular herbs/plants and their formulations. RESULT AND CONCLUSION In this review, we have discussed the number of plants along with their patents of different herbal formulations which are being used for the treatment of BC and other types of cancers. We have also delineated the different signaling mechanisms through which they inhibit the growth of BC cells. In nutshell, we can conclude that large numbers of herbs or their extracts are reported for the treatment of BC. But still, there is further need for research in-depth to translate the use of natural products clinically BC treatment.
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Affiliation(s)
- Vandana Singh
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, India
| | - Kuldeep Kumar
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India; University Institute of Pharmaceutical Sciences (UIPS), Chandigarh University, Mohali, Punjab, India
| | - Deepika Purohit
- Department of Pharmaceutical Sciences, Indira Gandhi University, Rewari 123401, Haryana, India
| | - Ravinder Verma
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, India
| | - Parijat Pandey
- Department of Pharmaceutical Sciences, Gurugram University, Gurugram
| | - Saurabh Bhatia
- Amity Institute of Pharmacy, Amity University Haryana, Manesar, Panchgaon, Haryana 122412, India; Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Vinay Malik
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India
| | - Vineet Mittal
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, India
| | - Md Habibur Rahman
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Ghadeer M Albadrani
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11474, Saudi Arabia
| | - Mohammed W Arafah
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Fatma M El-Demerdash
- Department of Environmental Studies, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, Egypt
| | - Muhammad Furqan Akhtar
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Pakistan
| | - Ammara Saleem
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Mohamed Kamel
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Agnieszka Najda
- Laboratory of Quality of Vegetables and Medicinal Plants, Department of Vegtable Crops and Medicinal Plants, University of Life Sciences in Lublin, 15 Akademicka Street, 20-950 Lublin, Poland.
| | - Mohamed M Abdel-Daim
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt.
| | - Deepak Kaushik
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, India.
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19
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Wang Y, Soneson C, Malinowska AL, Laski A, Ghosh S, Kanitz A, Gebert LFR, Robinson MD, Hall J. MiR-CLIP reveals iso-miR selective regulation in the miR-124 targetome. Nucleic Acids Res 2021; 49:25-37. [PMID: 33300035 PMCID: PMC7797034 DOI: 10.1093/nar/gkaa1117] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/04/2020] [Accepted: 12/07/2020] [Indexed: 12/15/2022] Open
Abstract
Many microRNAs regulate gene expression via atypical mechanisms, which are difficult to discern using native cross-linking methods. To ascertain the scope of non-canonical miRNA targeting, methods are needed that identify all targets of a given miRNA. We designed a new class of miR-CLIP probe, whereby psoralen is conjugated to the 3p arm of a pre-microRNA to capture targetomes of miR-124 and miR-132 in HEK293T cells. Processing of pre-miR-124 yields miR-124 and a 5′-extended isoform, iso-miR-124. Using miR-CLIP, we identified overlapping targetomes from both isoforms. From a set of 16 targets, 13 were differently inhibited at mRNA/protein levels by the isoforms. Moreover, delivery of pre-miR-124 into cells repressed these targets more strongly than individual treatments with miR-124 and iso-miR-124, suggesting that isomirs from one pre-miRNA may function synergistically. By mining the miR-CLIP targetome, we identified nine G-bulged target-sites that are regulated at the protein level by miR-124 but not isomiR-124. Using structural data, we propose a model involving AGO2 helix-7 that suggests why only miR-124 can engage these sites. In summary, access to the miR-124 targetome via miR-CLIP revealed for the first time how heterogeneous processing of miRNAs combined with non-canonical targeting mechanisms expand the regulatory range of a miRNA.
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Affiliation(s)
- Yuluan Wang
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Charlotte Soneson
- Department of Molecular Life Sciences and SIB Swiss Institute of Bioinformatics, University of Zurich, 8057, Zurich, Switzerland
| | - Anna L Malinowska
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Artur Laski
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Souvik Ghosh
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | | | - Luca F R Gebert
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Mark D Robinson
- Department of Molecular Life Sciences and SIB Swiss Institute of Bioinformatics, University of Zurich, 8057, Zurich, Switzerland
| | - Jonathan Hall
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
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20
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KCNQ1OT1 regulates the retinoblastoma cell proliferation, migration and SIRT1/JNK signaling pathway by targeting miR-124/SP1 axis. Biosci Rep 2021; 41:227390. [PMID: 33345272 PMCID: PMC7805023 DOI: 10.1042/bsr20201626] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 11/06/2020] [Accepted: 12/09/2020] [Indexed: 02/03/2023] Open
Abstract
Objective: Long non-coding RNA (lncRNA) KCNQ1OT1 was reported to be tightly associated with tumorigenesis and progression of multiple cancers. However, the expression and biological functions of KCNQ1OT1 in retinoblastoma (RB) are still unknown. We aim to elucidate the potential function and underlying mechanism of KCNQ1OT1 in regulating the progression of RB. Methods: The levels of KCNQ1OT1 were assayed by real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) analysis. The cell proliferation of RB cells (Y79 and WERI-Rb-1) were evaluated through Cell Counting Kit 8 (CCK-8) assay. Meanwhile, Y79 and WERI-Rb-1 cell apoptosis and cell cycle were assessed by Flow Cytometry analysis. Dual luciferase reporter assay were performed to illustrate the interaction between KCNQ1OT1, miR-124, and SP1. Results: We found that KCNQ1OT1 was up-regulated and miR-124 was down-regulated in RB tissues and cells. Moreover, knockdown of KCNQ1OT1 reduced the proliferation, migration, and cell cycle, as well as promoted cell apoptosis of Y79 and WERI-Rb-1 cells. Western blot analysis consistently proved cell cycle and apoptosis related protein expression levels. More importantly, KCNQ1OT1 was a sponge of microRNA (miR)-124. MiR-124 inhibition strongly reversed the effect on cell proliferation, cycle arrest, and apoptosis by KCNQ1OT1 knockdown mediation. In addition, KCNQ1OT1 regulated expression of SP1, a direct target of miR-124 in RB. On the other hand, miR-124 inhibitor abrogated the active effect of KCNQ1OT1 silencing on silent information regulator 1 (SIRT1)/c-Jun N-terminal kinase (JNK) signaling pathway. The function of KCNQ1OT1 was verified in vivo. Conclusions: These findings implied that KCNQ1OT1 silencing inhibited RB progression and activated SIRT1/JNK signaling pathway partially by modulating the miR-124/SP1 axis.
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21
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Yi S, Zhang C, Li N, Fu Y, Li H, Zhang J. miR-325-3p Protects Neurons from Oxygen-Glucose Deprivation and Reoxygenation Injury via Inhibition of RIP3. Dev Neurosci 2020; 42:83-93. [PMID: 33130681 DOI: 10.1159/000509108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/01/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Recent reports have corroborated that micro-RNAs (miRs) are related to the pathological changes of cerebral ischemia-reperfusion (CIR) induced injury. This work aimed to unearth the role and potential mechanism of miR-325-3p in regulating neuronal survival in CIR injury. METHODS To conduct this investigation, we established an in vitro model of CIR injury by subjecting neurons to oxygen-glucose deprivation and reoxygenation (OGD/R). Gain and loss of function of miR-325-3p and receptor-interacting serine-threonine kinase 3 (RIP3) in neurons were performed to observe its effect on cell apoptosis and the release of lactate dehydrogenase. The levels of miR-325-3p and RIP3 in neurons were detected by qRT-PCR. Western blot was employed to inspect the levels of caspase3, Bax, and Bcl-2, as well as p38 and JNK phosphorylation. The relationship between miR-325-3p and RIP3 was detected by TargetScan and validated by dual-luciferase reporter assay. RESULTS Firstly, miR-325-3p expression was obviously downregulated while RIP3 expression was upregulated in neurons following OGD/R treatment. Overexpressed miR-325-3p or downexpressed RIP3 ameliorated OGD/R-induced neuronal injury. Besides, RIP3 was a direct target mRNA of miR-325-3p. Additionally, Western blot revealed the mitogen-activated protein kinase (MAPK) pathway was involved in the regulation of miR-325-3p on OGD/R-induced neuronal injury. Furthermore, miR-325-3p was verified to hinder OGD/R-induced neuronal injury through downregulating RIP3. CONCLUSION This study demonstrated that miR-325-3p targets RIP3 to inactivate the MAPK pathway, thereby protecting neurons against OGD/R-induced injury.
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Affiliation(s)
- Song Yi
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
- Department of Orthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Chuqin Zhang
- Department of Otorhinolaryngology, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Na Li
- Department of Stomatology, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Yajing Fu
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Hongkun Li
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Jun Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China,
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22
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The roles of MicroRNAs in neural regenerative medicine. Exp Neurol 2020; 332:113394. [DOI: 10.1016/j.expneurol.2020.113394] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/15/2020] [Accepted: 06/25/2020] [Indexed: 12/22/2022]
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23
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Cao J, Li Y, Zeng F, Liu X, Tao T, Qin Z. Propofol Exposure Disturbs the Differentiation of Rodent Neural Stem Cells via an miR-124-3p/Sp1/Cdkn1b Axis. Front Cell Dev Biol 2020; 8:838. [PMID: 32984332 PMCID: PMC7481336 DOI: 10.3389/fcell.2020.00838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 08/05/2020] [Indexed: 11/13/2022] Open
Abstract
Accumulating studies have indicated that propofol may lead to neurotoxicity and its effect on neural stem cells (NSCs) may play pivotal role in propofol-related neurotoxicity. Previously, we found that propofol could promote NSCs proliferation and could regulate several microRNA expressions. However, the underlying mechanism between microRNAs and NSCs development after propofol exposure is still unclear. Our data first observed that rat primary neural stem cells exposed to propofol exhibited a cell cycle arrest status and an inclination to differentiate into GFAP+ or S100β+ cells. This phenomenon was accompanying with a lower miR-124-3p expression and could be reversed via overexpression miR-124-3p in NSCs. Using bioinformatic predictions and luciferase assay we confirmed that Sp1 (Specificity Protein 1) is the target gene of miR-124-3p, indicating that miR-124-3p may regulate NSCs development through Sp1. Further, knockdown of Sp1 rescue the effect of propofol on NSCs differentiation. Finally, we demonstrated that Sp1 could bind cdkn1b promoter region through chromatin immunoprecipitation assay, indicating that Sp1 affect NSC's cell cycle through cdkn1b directly. Overall, our study highlights the miR-124-3p/Sp1/cdkn1b axis to be important in propofol interfering the differentiation of NSCs.
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Affiliation(s)
- Jun Cao
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Anesthesiology, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Yan Li
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, China
| | - Fanning Zeng
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaolei Liu
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Tao Tao
- Department of Anesthesiology, The Central People's Hospital of Zhanjiang, Zhanjiang, China
| | - Zaisheng Qin
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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24
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Li Z, Yu Y, Kang J, Zheng Y, Xu J, Xu K, Hou K, Hou Y, Chi G. MicroRNA-124 Overexpression in Schwann Cells Promotes Schwann Cell-Astrocyte Integration and Inhibits Glial Scar Formation Ability. Front Cell Neurosci 2020; 14:144. [PMID: 32714149 PMCID: PMC7347021 DOI: 10.3389/fncel.2020.00144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/28/2020] [Indexed: 11/13/2022] Open
Abstract
Schwann cell (SC) transplantation is a promising approach for the treatment of spinal cord injury (SCI); however, SC grafts show a low migratory capacity within the astrocytic environment, which inevitably hampers their therapeutic efficacy. The purpose of this study was to explore mechanisms to modify the characteristics of SCs and astrocytes (ASs), as well as to adjust the SC-AS interface to break the SC-AS boundary, thus improving the benefits of SCI treatment. We observed that the expression levels of miR-124 in SCs and ASs were significantly lower than those in the normal spinal cord. Furthermore, overexpressing miR-124 in SCs (miR-124-SCs) significantly inhibited gene and protein expression levels of SC-specific markers, such as GFAP and Krox20. The expression of neurotrophic factors, Bdnf and Nt-3, was up-regulated in miR-124-SCs without affecting their proliferation. Further, the boundary assay showed an increased number of miR-124-SCs that had actively migrated and entered the astrocytic region to intermingle with ASs, compared with normal SCs. In addition, although Krox20 protein expression was down-regulated in miR-124-SCs, the luciferase assay showed that Krox20 is not a direct target of miR-124. RNA sequencing of miR-124-SCs revealed seven upregulated and eleven downregulated genes involved in cell migration and motility. Based on KEGG pathway and KOG functional analyses, changes in these genes corresponded to the activation of Hippo, FoxO, and TGF-beta signaling pathways, cytokine-cytokine receptor interactions, and the cell cycle. Finally, co-culturing of miR-124-SCs and ASs in a transwell system revealed that GFAP and p-STAT3 protein expression in ASs was significantly reduced. Collectively, these results show that overexpression of miR-124 in SCs promotes SC-AS integration in vitro and may attenuate the capacity of ASs to form glial scars. Thus, this study provides novel insights into modifying SCs by overexpressing miR-124 to improve their therapeutic potential in SCI.
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Affiliation(s)
- Zhijun Li
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yifei Yu
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Juanjuan Kang
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Yangyang Zheng
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Jinying Xu
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Kan Xu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Kun Hou
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Yi Hou
- Department of Regeneration Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Guangfan Chi
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
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25
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Lin J, Jo SB, Kim TH, Kim HW, Chew SY. RNA interference in glial cells for nerve injury treatment. J Tissue Eng 2020; 11:2041731420939224. [PMID: 32670539 PMCID: PMC7338726 DOI: 10.1177/2041731420939224] [Citation(s) in RCA: 3] [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: 04/16/2020] [Accepted: 06/13/2020] [Indexed: 12/12/2022] Open
Abstract
Drivers of RNA interference are potent for manipulating gene and protein levels, which enable the restoration of dysregulated mRNA expression that is commonly associated with injuries and diseases. This review summarizes the potential of targeting neuroglial cells, using RNA interference, to treat nerve injuries sustained in the central nervous system. In addition, the various methods of delivering these RNA interference effectors will be discussed.
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Affiliation(s)
- Junquan Lin
- School of Chemical and Biomedical
Engineering, Nanyang Technological University, Singapore
| | - Seung Bin Jo
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Tae-Hyun Kim
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science
& BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook
University, Cheonan, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science
& BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook
University, Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine
Innovation Centre, Dankook University, Cheonan, Republic of Korea
| | - Sing Yian Chew
- School of Chemical and Biomedical
Engineering, Nanyang Technological University, Singapore
- Lee Kong Chian School of Medicine,
Nanyang Technological University, Singapore
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26
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Parvaee P, Sarmadian H, Khansarinejad B, Amini M, Mondanizadeh M. Plasma Level of MicroRNAs, MiR-107, MiR-194 and MiR-210 as Potential Biomarkers for Diagnosis Intestinal-Type Gastric
Cancer in Human. Asian Pac J Cancer Prev 2019; 20:1421-1426. [PMID: 31127902 PMCID: PMC6857871 DOI: 10.31557/apjcp.2019.20.5.1421] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: Timely and sensitive diagnosis of gastric cancer is crucial for efficient treatment and survival of the patients. microRNAs have been considered as diagnostic biomarkers in different type of cancers including gastric cancer. In the present study, the expression profile of four microRNAs, miR-103, miR-107, miR-194 and miR-210 were evaluated in patients with intestinal-type of gastric cancer (IGC) in order to assess their diagnosis utility as noninvasive biomarkers. Methods: A total number of 100 plasma samples from patients with gastric cancer and healthy controls were obtained and total RNA was extracted using a commercial monophasic solution of phenol and guanidium thiocyanate. Reverse transcription (RT) reactions were performed by specific stem-loop RT primers and M-MuLV RT-enzyme. The expression patterns of microRNAs were assessed using reverse transcription quantitative real-time PCR (RT-qPCR) method and the expression of SNORD47 RNA was used as the reference for normalization. Results: The results indicate that the plasma levels of miR-107, miR-194, and miR-210 were significantly lower in patients. Receiver operating characteristic (ROC) curve analysis showed that the patients could be distinguished from healthy individuals at the cutoff levels of 0.504, 0.266, and 0.394 of miR-107, miR-194, and miR-210, respectively. On the other hand, the expression levels of these miRNAs were not significantly different in different clinicopathological stages of the disease. Conclusion: These findings suggest that the plasma levels of miR-107, miR-194 and miR-210 were downregulated in patients with ICG and propose these molecules as potential non-invasive biomarkers for detection of IGC.
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Affiliation(s)
- Pegah Parvaee
- Department of Biotechnology and Molecular Medicine, Arak University of Medical Sciences, Arak, Iran.
| | - Hossein Sarmadian
- Infectious Diseases Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Behzad Khansarinejad
- Department of Microbiology and Immunology, Arak University of Medical Sciences, Arak, Iran.,Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Mahmood Amini
- Department of Surgery, Arak University of Medical Sciences, Arak, Iran
| | - Mahdieh Mondanizadeh
- Department of Biotechnology and Molecular Medicine, Arak University of Medical Sciences, Arak, Iran. ,Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
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27
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Moore D, Meays BM, Madduri LSV, Shahjin F, Chand S, Niu M, Albahrani A, Guda C, Pendyala G, Fox HS, Yelamanchili SV. Downregulation of an Evolutionary Young miR-1290 in an iPSC-Derived Neural Stem Cell Model of Autism Spectrum Disorder. Stem Cells Int 2019; 2019:8710180. [PMID: 31191687 PMCID: PMC6525818 DOI: 10.1155/2019/8710180] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 02/01/2019] [Accepted: 02/20/2019] [Indexed: 12/30/2022] Open
Abstract
The identification of several evolutionary young miRNAs, which arose in primates, raised several possibilities for the role of such miRNAs in human-specific disease processes. We previously have identified an evolutionary young miRNA, miR-1290, to be essential in neural stem cell proliferation and neuronal differentiation. Here, we show that miR-1290 is significantly downregulated during neuronal differentiation in reprogrammed induced pluripotent stem cell- (iPSC-) derived neurons obtained from idiopathic autism spectrum disorder (ASD) patients. Further, we identified that miR-1290 is actively released into extracellular vesicles. Supplementing ASD patient-derived neural stem cells (NSCs) with conditioned media from differentiated control-NSCs spiked with "artificial EVs" containing synthetic miR-1290 oligonucleotides significantly rescued differentiation deficits in ASD cell lines. Based on our earlier published study and the observations from the data presented here, we conclude that miR-1290 regulation could play a critical role during neuronal differentiation in early brain development.
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Affiliation(s)
- Dalia Moore
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | | | - Lepakshe S. V. Madduri
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Farah Shahjin
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Subhash Chand
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Meng Niu
- Department of Genetics Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Abrar Albahrani
- Department of Genetics Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Chittibabu Guda
- Department of Genetics Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Gurudutt Pendyala
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Howard S. Fox
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
| | - Sowmya V. Yelamanchili
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA
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28
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Ng TK, Yang Q, Fortino VR, Lai NYK, Carballosa CM, Greenberg JM, Choy KW, Pelaez D, Pang CP, Cheung HS. MicroRNA-132 directs human periodontal ligament-derived neural crest stem cell neural differentiation. J Tissue Eng Regen Med 2019; 13:12-24. [PMID: 30352481 DOI: 10.1002/term.2759] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 09/02/2018] [Accepted: 10/18/2018] [Indexed: 02/05/2023]
Abstract
Neurogenesis is the basis of stem cell tissue engineering and regenerative medicine for central nervous system (CNS) disorders. We have established differentiation protocols to direct human periodontal ligament-derived stem cells (PDLSCs) into neuronal lineage, and we recently isolated the neural crest subpopulation from PDLSCs, which are pluripotent in nature. Here, we report the neural differentiation potential of these periodontal ligament-derived neural crest stem cells (NCSCs) as well as its microRNA (miRNA) regulatory mechanism and function in NCSC neural differentiation. NCSCs, treated with basic fibroblast growth factor and epidermal growth factor-based differentiation medium for 24 days, expressed neuronal and glial markers (βIII-tubulin, neurofilament, NeuN, neuron-specific enolase, GFAP, and S100) and exhibited glutamate-induced calcium responses. The global miRNA expression profiling identified 60 upregulated and 19 downregulated human miRNAs after neural differentiation, and the gene ontology analysis of the miRNA target genes confirmed the neuronal differentiation-related biological functions. In addition, overexpression of miR-132 in NCSCs promoted the expression of neuronal markers and downregulated ZEB2 protein expression. Our results suggested that the pluripotent NCSCs from human periodontal ligament can be directed into neural lineage, which demonstrate its potential in tissue engineering and regenerative medicine for CNS disorders.
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Affiliation(s)
- Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
- Geriatric Research, Education and Clinical Center, Miami Veterans Affairs Medical Center, Miami, Florida
| | - Qichen Yang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
| | - Veronica R Fortino
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida
- Department of Biological Sciences, Nova Southeastern University, Fort Lauderdale, Florida
| | - Nikky Yuk-Ki Lai
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
| | - Carlos M Carballosa
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida
| | - Jordan M Greenberg
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida
| | - Kwong Wai Choy
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Daniel Pelaez
- Geriatric Research, Education and Clinical Center, Miami Veterans Affairs Medical Center, Miami, Florida
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami, Miami, Florida
| | - Chi Pui Pang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong
| | - Herman S Cheung
- Geriatric Research, Education and Clinical Center, Miami Veterans Affairs Medical Center, Miami, Florida
- Department of Biomedical Engineering, College of Engineering, University of Miami, Coral Gables, Florida
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29
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Mokabber H, Najafzadeh N, Mohammadzadeh Vardin M. miR‐124
promotes neural differentiation in mouse bulge stem cells by repressing
Ptbp1
and
Sox9. J Cell Physiol 2018; 234:8941-8950. [DOI: 10.1002/jcp.27563] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 09/13/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Haleh Mokabber
- Department of Anatomical Sciences and Pathology Research Laboratory for Embryology and Stem Cells, Ardabil University of Medical Sciences Ardabil Iran
- Department of Biology Fars Science and Research Branch, Islamic Azad University Fars Iran
| | - Nowruz Najafzadeh
- Department of Anatomical Sciences and Pathology Research Laboratory for Embryology and Stem Cells, Ardabil University of Medical Sciences Ardabil Iran
| | - Mohammad Mohammadzadeh Vardin
- Department of Anatomical Sciences and Pathology Research Laboratory for Embryology and Stem Cells, Ardabil University of Medical Sciences Ardabil Iran
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Synaptic Plasticity of Human Umbilical Cord Mesenchymal Stem Cell Differentiating into Neuron-like Cells In Vitro Induced by Edaravone. Stem Cells Int 2018; 2018:5304279. [PMID: 30510585 PMCID: PMC6230402 DOI: 10.1155/2018/5304279] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 08/02/2018] [Accepted: 08/14/2018] [Indexed: 12/12/2022] Open
Abstract
Objective The human umbilical cord mesenchymal stem cells (hUMSCs) are characterized with the potential ability to differentiate to several types of cells. Edaravone has been demonstrated to prevent the hUMSCs from the oxidative damage, especially its ability in antioxidative stress. We hypothesized that Edaravone induces the hUMSCs into the neuron-like cells. Methods The hUMSCs were obtained from the human umbilical cord tissue. The differentiation of hUMSCs was induced by Edaravone with three different doses: 0.65 mg/ml, 1.31 mg/ml, and 2.62 mg/ml. Flow cytometry was used to detect the cell markers. Protein and mRNA levels of nestin, neuron-specific enolase (NSE), and glial fibrillary acidic protein (GFAP) were detected by Western blot and RT-PCR. The expression of synaptophysin (SYN), growth-associated protein 43 (GAP43), and postsynaptic density 95 (PSD95) was detected by Real-Time PCR. Results As long as the prolongation of the culture, the hUMSCs displayed with the long strips or long fusiform to fat and then characterized with the radial helix growth. By using flow cytometry, the cultured hUMSCs at the 3rd, 5th, and 10th passages were expressed with CD73, CD90, and CD105 but not CD11b, CD19, CD34, CD45, and HLA-DR. Most of the hUMSCs cultured with Edaravone exhibited typical nerve-immediately characters including the cell body contraction, increased refraction, and protruding one or more elongated protrusions, which were not found in the control group without addition of Edaravone. NSE, nestin, and GFAP were positive in these neuron-like cells. Edaravone dose-dependently increased expression levels of NSE, nestin, and GFAP. After replacement of maintenance fluid, neuron-like cells continued to be cultured for five days. These neuron-like cells were positive for SYN, PSD95, and GAP43. Conclusion Edaravone can dose-dependently induce hUMSCs to differentiate into neuron-like cells that expressed the neuronal markers including NSE, nestin, and GFAP and synaptic makers such as SYN, PSD95, and GAP43.
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31
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Tanzadehpanah H, Mahaki H, Samadi P, Karimi J, Moghadam NH, Salehzadeh S, Dastan D, Saidijam M. Anticancer activity, calf thymus DNA and human serum albumin binding properties of Farnesiferol C from Ferula pseudalliacea. J Biomol Struct Dyn 2018; 37:2789-2800. [DOI: 10.1080/07391102.2018.1497543] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hamid Tanzadehpanah
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Hanie Mahaki
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
- Department of Immunology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Pouria Samadi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Jamshid Karimi
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | | | - Dara Dastan
- Medicinal Plants and Natural Products Research Center, Hamadan University of Medical Sciences, Hamadan, IranCommunicated by Ramaswamy H. Sarma
| | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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32
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Emerging ways to treat breast cancer: will promises be met? Cell Oncol (Dordr) 2018; 41:605-621. [PMID: 30259416 DOI: 10.1007/s13402-018-0409-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Breast cancer (BC) is the most common cancer among women and it is responsible for more than 40,000 deaths in the United States and more than 500,000 deaths worldwide each year. In previous decades, the development of improved screening, diagnosis and treatment methods has led to decreases in BC mortality rates. More recently, novel targeted therapeutic options, such as the use of monoclonal antibodies and small molecule inhibitors that target specific cancer cell-related components, have been developed. These components include ErbB family members (HER1, HER2, HER3 and HER4), Ras/MAPK pathway components (Ras, Raf, MEK and ERK), VEGF family members (VEGFA, VEGFB, VEGFC, VEGF and PGF), apoptosis and cell cycle regulators (BAK, BAX, BCL-2, BCL-X, MCL-1 and BCL-W, p53 and PI3K/Akt/mTOR pathway components) and DNA repair pathway components such as BRCA1. In addition, long noncoding RNA inhibitor-, microRNA inhibitor/mimic- and immunotherapy-based approaches are being developed for the treatment of BC. Finally, a novel powerful technique called CRISPR-Cas9-based gene editing is emerging as a precise tool for the targeted treatment of cancer, including BC. CONCLUSIONS Potential new strategies that are designed to specifically target BC are presented. Several clinical trials using these strategies are already in progress and have shown promising results, but inherent limitations such as off-target effects and low delivery efficiencies still have to be resolved. By improving the clinical efficacy of current therapies and exploring new ones, it is anticipated that novel ways to overcome BC may become attainable.
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33
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Li Y, Ke J, Peng C, Wu F, Song Y. microRNA-300/NAMPT regulates inflammatory responses through activation of AMPK/mTOR signaling pathway in neonatal sepsis. Biomed Pharmacother 2018; 108:271-279. [PMID: 30223098 DOI: 10.1016/j.biopha.2018.08.064] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/08/2018] [Accepted: 08/15/2018] [Indexed: 01/08/2023] Open
Abstract
AIM Rapid and accurate diagnosis of neonatal sepsis (NS) is highly warranted because of high associated morbidity and mortality. The study aims to evaluate the effects of miR-300 on inflammatory responses in a septic neonate mouse model. METHODS A septic mouse model was established by intraperitoneal (i.p.) cecal slurry (CS) injection in order to validate the effect of miR-300 on the inflammatory response in endothelial cells. Bioinformatics tools and luciferase activity were employed to detect the target of miR-300. Serum inflammatory factors were determined by ELISA assay. RT-qPCR and western blot analysis were used to determine the gene expressions. Flow cytometry was employed to evaluate cell apoptosis. RESULTS Gain- and loss-of-function studies revealed that miR-300 overexpression augmented autophagy, inhibited cell apoptosis, enhanced cell cycle entry in endothelial cells, and decreased inflammatory response through the regulation of pro- and anti-apoptotic factors in endothelial cells. The effect of miR-300on endothelial cells was upregulated after nicotinamide phosphoribosyltransferase (NAMPT) silencing and AMPK/mTOR signaling pathway activation, indicating that miR-300 influences sepsis via suppressing NAMPT and triggering the AMPK/mTOR signaling pathway. CONCLUSIONS Our study provides evidence indicating that overexpressedmiR-300 enhances autophagy by targeting NAMPT through activation of the AMPK/mTOR signaling pathway in septic mouse models, indicating it may serve as a potential therapeutic target for sepsis.
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Affiliation(s)
- Yexuzi Li
- Department of Medical Intensive Care Unit, The First People's Hospital of Wenling, Wenling 317500, Zhejiang Province, China.
| | - Junzhong Ke
- Department of Medical Intensive Care Unit, The First People's Hospital of Wenling, Wenling 317500, Zhejiang Province, China.
| | - Chen Peng
- Department of Medical Intensive Care Unit, The First People's Hospital of Wenling, Wenling 317500, Zhejiang Province, China.
| | - Fugen Wu
- Department of Neonatal Intensive Care Unit, The First People's Hospital of Wenling, Wenling 317500, Zhejiang Province, China.
| | - Yukang Song
- Department of Medical Intensive Care Unit, The First People's Hospital of Wenling, Wenling 317500, Zhejiang Province, China.
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34
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Wei C, Ren L, Li K, Lu Z. The regulation of survival and differentiation of neural stem cells by miR-124 via modulating PAX3. Neurosci Lett 2018; 683:19-26. [PMID: 29864453 DOI: 10.1016/j.neulet.2018.05.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 05/11/2018] [Accepted: 05/31/2018] [Indexed: 01/19/2023]
Abstract
MicroRNAs (miRNAs) have crucial functions in the regulation of proliferation and differentiation of neural stem cells (NSCs). MiR-124 has been reported to be implicated in neurogenesis. However, the precise function and mechanism of miR-124 still need further verification. In this study, we identified paired box 3 (PAX3) as a potential target of miR-124 using bioinformatics approaches. Next, we found PAX3 had reversed expression pattern with miR-124 as well as TUBB3 and GFAP. Dual-luciferase assay showed that miR-124 could bind to the 3'-UTR of PAX3 mRNA and restrain its expression. It was demonstrated that overexpression and knocking down of miR-124 in NSCs could promote the survival and suppress the apoptosis of NSCs. Meanwhile, miR-124 enhanced the expression of TUBB3 and GFAP via impairing PAX3 expression. Mechanistic study revealed that augmented Akt-GSK3β signaling pathway was the driving-force for the regulatory functions of miR-124 in NSCs. In summary, this study for the first time uncovered that miR-124 could suppress PAX3 expression, which in turn regulated the differentiation of NSCs.
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Affiliation(s)
- Chunxia Wei
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, PR China
| | - Lanfen Ren
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, PR China
| | - Kui Li
- Department of Cardiovascular Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, PR China
| | - Zuneng Lu
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, PR China.
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35
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The Vast Complexity of the Epigenetic Landscape during Neurodevelopment: An Open Frame to Understanding Brain Function. Int J Mol Sci 2018; 19:ijms19051333. [PMID: 29723958 PMCID: PMC5983638 DOI: 10.3390/ijms19051333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 04/16/2018] [Accepted: 04/26/2018] [Indexed: 12/31/2022] Open
Abstract
Development is a well-defined stage-to-stage process that allows the coordination and maintenance of the structure and function of cells and their progenitors, in a complete organism embedded in an environment that, in turn, will shape cellular responses to external stimuli. Epigenetic mechanisms comprise a group of process that regulate genetic expression without changing the DNA sequence, and they contribute to the necessary plasticity of individuals to face a constantly changing medium. These mechanisms act in conjunction with genetic pools and their correct interactions will be crucial to zygote formation, embryo development, and brain tissue organization. In this work, we will summarize the main findings related to DNA methylation and histone modifications in embryonic stem cells and throughout early development phases. Furthermore, we will critically outline some key observations on how epigenetic mechanisms influence the rest of the developmental process and how long its footprint is extended from fecundation to adulthood.
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36
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Zammit V, Baron B, Ayers D. MiRNA Influences in Neuroblast Modulation: An Introspective Analysis. Genes (Basel) 2018; 9:genes9010026. [PMID: 29315268 PMCID: PMC5793179 DOI: 10.3390/genes9010026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/22/2017] [Accepted: 12/29/2017] [Indexed: 02/07/2023] Open
Abstract
Neuroblastoma (NB) is the most common occurring solid paediatric cancer in children under the age of five years. Whether of familial or sporadic origin, chromosome abnormalities contribute to the development of NB and cause dysregulation of microRNAs (miRNAs). MiRNAs are small non-coding, single stranded RNAs that target messenger RNAs at the post-transcriptional levels by repressing translation within all facets of human physiology. Such gene 'silencing' activities by miRNAs allows the development of regulatory feedback loops affecting multiple functions within the cell, including the possible differentiation of neural stem cell (NSC) lineage selection. Neurogenesis includes stages of self-renewal and fate specification of NSCs, migration and maturation of young neurones, and functional integration of new neurones into the neural circuitry, all of which are regulated by miRNAs. The role of miRNAs and their interaction in cellular processes are recognised aspects of cancer genetics, and miRNAs are currently employed as biomarkers for prognosis and tumour characterisation in multiple cancer models. Consequently, thorough understanding of the mechanisms of how these miRNAs interplay at the transcriptomic level will definitely lead to the development of novel, bespoke and efficient therapeutic measures, with this review focusing on the influences of miRNAs on neuroblast modulations leading to neuroblastoma.
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Affiliation(s)
- Vanessa Zammit
- National Blood Transfusion Service, St. Luke's Hospital, PTA1010 G'Mangia, Malta.
- School of Biomedical Science and Physiology, University of Wolverhampton, Wolverhampton WV1 1LY, UK.
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, MSD2080 Msida, Malta.
| | - Duncan Ayers
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, MSD2080 Msida, Malta.
- School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK.
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Zhou L, Feng Y, Dai J, Ouyang J. [Research progress of miRNA regulation in differentiation of adipose-derived stem cells]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2017; 31:1506-1511. [PMID: 29806396 DOI: 10.7507/1002-1892.201706076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Objective To review the research progress of miRNA regulation in the differentiation of adipose-derived stem cells (ADSCs). Methods The recent literature associated with miRNAs and differentiation of ADSCs was reviewed. The regulatory mechanism was analyzed in detail and summarized. Results The results indicate that the expression of miRNAs changes during differentiation of ADSCs. In addition, miRNAs regulate the differentiation of ADSCs into adipocytes, osteoblasts, chondrocytes, neurons, and hepatocytes by regulating the signaling pathways involved in cell differentiation. Conclusion Through controlling the differentiation of ADSCs by miRNAs, the suitable seed cell for tissue engineering can be established. The review will provide a theoretical basis for molecular targeted therapy and stem cell therapy in clinic.
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Affiliation(s)
- Lanting Zhou
- Medical College, Hubei University of Arts and Science, Xiangyang Hubei, 441053, P.R.China;Department of Anatomy, Southern Medical University, Guangzhou Guangdong, 510515, P.R.China
| | - Yanting Feng
- Department of Anatomy, Southern Medical University, Guangzhou Guangdong, 510515, P.R.China
| | - Jingxing Dai
- Department of Anatomy, Southern Medical University, Guangzhou Guangdong, 510515, P.R.China
| | - Jun Ouyang
- Department of Anatomy, Southern Medical University, Guangzhou Guangdong, 510515,
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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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39
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Bavia L, Mosimann ALP, Aoki MN, Duarte Dos Santos CN. A glance at subgenomic flavivirus RNAs and microRNAs in flavivirus infections. Virol J 2016; 13:84. [PMID: 27233361 PMCID: PMC4884392 DOI: 10.1186/s12985-016-0541-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/17/2016] [Indexed: 11/10/2022] Open
Abstract
The family Flaviviridae comprises a wide variety of viruses that are distributed worldwide, some of which are associated with high rates of morbidity and mortality. There are neither vaccines nor antivirals for most flavivirus infections, reinforcing the importance of research on different aspects of the viral life cycle. During infection, cytoplasmic accumulation of RNA fragments mainly originating from the 3' UTRs, which have been designated subgenomic flavivirus RNAs (sfRNAs), has been detected. It has been shown that eukaryotic exoribonucleases are involved in viral sfRNA production. Additionally, viral and human small RNAs (sRNAs) have also been found in flavivirus-infected cells, especially microRNAs (miRNAs). miRNAs were first described in eukaryotic cells and in a mature and functional state present as single-stranded 18-24 nt RNA fragments. Their main function is the repression of translation through base pairing with cellular mRNAs, besides other functions, such as mRNA degradation. Canonical miRNA biogenesis involves Drosha and Dicer, however miRNA can also be generated by alternative pathways. In the case of flaviviruses, alternative pathways have been suggested. Both sfRNAs and miRNAs are involved in viral infection and host cell response modulation, representing interesting targets of antiviral strategies. In this review, we focus on the generation and function of viral sfRNAs, sRNAs and miRNAs in West Nile, dengue, Japanese encephalitis, Murray Valley encephalitis and yellow fever infections, as well as their roles in viral replication, translation and cell immune response evasion. We also give an overview regarding other flaviviruses and the generation of cellular miRNAs during infection.
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Affiliation(s)
- Lorena Bavia
- Laboratório de Virologia Molecular, Instituto Carlos Chagas (ICC/FIOCRUZ-PR), Rua Prof. Algacyr Munhoz Mader 3775, CIC, CEP: 81350-010, Curitiba, Paraná, Brazil
| | - Ana Luiza Pamplona Mosimann
- Laboratório de Virologia Molecular, Instituto Carlos Chagas (ICC/FIOCRUZ-PR), Rua Prof. Algacyr Munhoz Mader 3775, CIC, CEP: 81350-010, Curitiba, Paraná, Brazil
| | - Mateus Nóbrega Aoki
- Laboratório de Virologia Molecular, Instituto Carlos Chagas (ICC/FIOCRUZ-PR), Rua Prof. Algacyr Munhoz Mader 3775, CIC, CEP: 81350-010, Curitiba, Paraná, Brazil
| | - Claudia Nunes Duarte Dos Santos
- Laboratório de Virologia Molecular, Instituto Carlos Chagas (ICC/FIOCRUZ-PR), Rua Prof. Algacyr Munhoz Mader 3775, CIC, CEP: 81350-010, Curitiba, Paraná, Brazil.
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40
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Cao DD, Li L, Chan WY. MicroRNAs: Key Regulators in the Central Nervous System and Their Implication in Neurological Diseases. Int J Mol Sci 2016; 17:E842. [PMID: 27240359 PMCID: PMC4926376 DOI: 10.3390/ijms17060842] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 05/20/2016] [Accepted: 05/23/2016] [Indexed: 01/03/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of small, well-conserved noncoding RNAs that regulate gene expression post-transcriptionally. They have been demonstrated to regulate a lot of biological pathways and cellular functions. Many miRNAs are dynamically regulated during central nervous system (CNS) development and are spatially expressed in adult brain indicating their essential roles in neural development and function. In addition, accumulating evidence strongly suggests that dysfunction of miRNAs contributes to neurological diseases. These observations, together with their gene regulation property, implicated miRNAs to be the key regulators in the complex genetic network of the CNS. In this review, we first focus on the ways through which miRNAs exert the regulatory function and how miRNAs are regulated in the CNS. We then summarize recent findings that highlight the versatile roles of miRNAs in normal CNS physiology and their association with several types of neurological diseases. Subsequently we discuss the limitations of miRNAs research based on current studies as well as the potential therapeutic applications and challenges of miRNAs in neurological disorders. We endeavor to provide an updated description of the regulatory roles of miRNAs in normal CNS functions and pathogenesis of neurological diseases.
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Affiliation(s)
- Dan-Dan Cao
- Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong-Chinese Academy of Sciences Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, SAR, China.
| | - Lu Li
- Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong-Chinese Academy of Sciences Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, SAR, China.
| | - Wai-Yee Chan
- Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong-Chinese Academy of Sciences Guangzhou Institute of Biomedicine and Health Joint Laboratory on Stem Cell and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong 999077, SAR, China.
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41
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Tenga A, Beard JA, Takwi A, Wang YM, Chen T. Regulation of Nuclear Receptor Nur77 by miR-124. PLoS One 2016; 11:e0148433. [PMID: 26840408 PMCID: PMC4739595 DOI: 10.1371/journal.pone.0148433] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 01/18/2016] [Indexed: 01/26/2023] Open
Abstract
The nuclear receptor Nur77 is commonly upregulated in adult cancers and has oncogenic functions. Nur77 is an immediate-early response gene that acts as a transcription factor to promote proliferation and protect cells from apoptosis. Conversely, Nur77 can translocate to the mitochondria and induce apoptosis upon treatment with various cytotoxic agents. Because Nur77 is upregulated in cancer and may have a role in cancer progression, it is of interest to understand the mechanism controlling its expression. MicroRNAs (miRNAs) are responsible for inhibiting translation of their target genes by binding to the 3'UTR and either degrading the mRNA or preventing it from being translated into protein, thereby making these non-coding endogenous RNAs vital regulators of every cellular process. Several miRNAs have been predicted to target Nur77; however, strong evidence showing the regulation of Nur77 by any miRNA is lacking. In this study, we used a luciferase reporter assay containing the 3'UTR of Nur77 to screen 296 miRNAs and found that miR-124, which is the most abundant miRNA in the brain and has a role in promoting neuronal differentiation, caused the greatest reduction in luciferase activity. Interestingly, we discovered an inverse relationship in Daoy medulloblastoma cells and undifferentiated granule neuron precursors in which Nur77 is upregulated and miR-124 is downregulated. Exogenous expression to further elevate Nur77 levels in Daoy cells increased proliferation and viability, but knocking down Nur77 via siRNA resulted in the opposite phenotype. Importantly, exogenous expression of miR-124 reduced Nur77 expression, cell viability, proliferation, and tumor spheroid size in 3D culture. In all, we have discovered miR-124 to be downregulated in instances of medulloblastoma in which Nur77 is upregulated, resulting in a proliferative state that abets cancer progression. This study provides evidence for increasing miR-124 expression as a potential therapy for cancers with elevated levels of Nur77.
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MESH Headings
- 3' Untranslated Regions
- Cell Line, Tumor
- Cell Proliferation
- Cell Survival/genetics
- Gene Expression Regulation, Neoplastic
- Humans
- Medulloblastoma/genetics
- Medulloblastoma/metabolism
- Medulloblastoma/pathology
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Mitochondria/genetics
- Mitochondria/metabolism
- Mitochondria/pathology
- Neoplasm Proteins/genetics
- Neoplasm Proteins/metabolism
- Nuclear Receptor Subfamily 4, Group A, Member 1/genetics
- Nuclear Receptor Subfamily 4, Group A, Member 1/metabolism
- Protein Transport
- RNA, Neoplasm/genetics
- RNA, Neoplasm/metabolism
- Spheroids, Cellular/metabolism
- Spheroids, Cellular/pathology
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Affiliation(s)
- Alexa Tenga
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN, United States of America
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Jordan A. Beard
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN, United States of America
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Apana Takwi
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN, United States of America
| | - Yue-Ming Wang
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN, United States of America
| | - Taosheng Chen
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN, United States of America
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN, United States of America
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Wang Y, Wang D, Guo D. MiR-124 Promote Neurogenic Transdifferentiation of Adipose Derived Mesenchymal Stromal Cells Partly through RhoA/ROCK1, but Not ROCK2 Signaling Pathway. PLoS One 2016; 11:e0146646. [PMID: 26745800 PMCID: PMC4706435 DOI: 10.1371/journal.pone.0146646] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/21/2015] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Some recent studies suggest that multiple miRNAs might regulate neurogenic transdifferentiation of mesenchymal stromal cells (MSCs). In the present study, we hypothesized that the miR-124 can repress the expression of RhoA upon the neurogenesis of adipose derived MSCs (ADMSCs). METHODS MiRNA expression dynamics during neurogenic transdifferentiation of ADMSCs were measured. The expression of neuron-specific enolase (NSE), Tuj-1 (Neuron-specific class III beta-tubulin) and glial fibrillary acidic protein (GFAP), as well as electrophysiological properties, were detected after neurogenic transdifferentiation. The targeting of miR-124 over RhoA was verified by dual luciferase assay, qRT-PCR and western blot. The functions of miR-124 and the RhoA/ROCK signaling pathway were studied using gain and loss of function experiments in vitro. RESULTS MiR-124 is significantly upregulated during neurogenic transdifferentiation of ADMSCs. Knockdown of endogenous miR-124 hampered neurogenic transdifferentiation and the acquired electrophysiological properties. MiR-124 could directly target RHOA mRNA and repress its expression, through which it increased the proportion of transdifferentiated (transdiff.) cells with positive NSE, Tuj-1 and GFAP. RhoA/ROCK1, but not ROCK2 is a downstream signaling pathway of miR-124 in the process of transdifferentiation. CONCLUSION MiR-124 is an important miRNA modulating neurogenic transdifferentiation of ADMSCs at least partly via the miR-124/RhoA/ROCK1 signaling pathway. These findings provided some fundamental information for future use of ADMSCs as an agent for regenerative medicine and cell therapy for neurological diseases.
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Affiliation(s)
- Ye Wang
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, China
| | - Desheng Wang
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, China
| | - Dawen Guo
- Department of Clinical Laboratory, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, China
- * E-mail:
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43
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Chen Z, Liu S, Tian L, Wu M, Ai F, Tang W, Zhao L, Ding J, Zhang L, Tang A. miR-124 and miR-506 inhibit colorectal cancer progression by targeting DNMT3B and DNMT1. Oncotarget 2015; 6:38139-50. [PMID: 26497367 PMCID: PMC4741989 DOI: 10.18632/oncotarget.5709] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 10/05/2015] [Indexed: 12/31/2022] Open
Abstract
miR-124 and miR-506 are reportedly down-regulated and associated with tumor progression in many cancers, but little is known about their intrinsic regulatory mechanisms in colorectal cancer (CRC). In this study, we found that the miR-124 and miR-506 levels were significantly lower in human CRC tissues than in controls, as indicated by qRT-PCR and in situ hybridization histochemistry. We also found that the overexpression of miR-124 or miR-506 inhibited tumor cell progression and increased sensitivity to chemotherapy in vitro. Increased miR-124 or miR-506 expression also inhibited tumor cell proliferation and invasion in vivo. Luciferase reporter assays and western blotting were used to determine the association between miR-124, miR-506 and their target genes, DNMTs. We further identified that miR-124 and miR-506 directly targeted DNMT3B and indirectly targeted DNMT1. The overexpression of miR-124 and miR-506 reduced global DNA methylation and restored the expression of E-cadherin, MGMT and P16. In conclusion, our data showed that miR-124 and miR-506 inhibit progression and increase sensitivity to chemotherapy by targeting DNMT3B and DNMT1 in CRC. These findings may provide novel avenues for the development of targeted therapies.
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Affiliation(s)
- Zhiheng Chen
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shaojun Liu
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Tian
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Minghao Wu
- Department of Gastroenterology, The Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - Feiyan Ai
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Wuliang Tang
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lian Zhao
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
| | - Juan Ding
- Department of Oncology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Liyang Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Anliu Tang
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan, China
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44
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Yu X, Li Z. The role of miRNAs in cutaneous squamous cell carcinoma. J Cell Mol Med 2015; 20:3-9. [PMID: 26508273 PMCID: PMC4717857 DOI: 10.1111/jcmm.12649] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 06/08/2015] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs (miRs) are small, noncoding RNAs that negatively regulate gene expressions at posttranscriptional level. Each miR can control hundreds of gene targets and play important roles in various biological and pathological processes such as hematopoiesis, organogenesis, cell apoptosis and proliferation. Aberrant miR expression contributes to initiation and cell progression of cancers. Accumulating studies have found that miRs play a significant role in cutaneous squamous cell carcinoma (cSCC). Deregulations of miRs may contribute to cSCC carcinogenesis is through acting as oncogenic or tumour suppressive miRs. In this study, we summarized the recent data available on cSCC‐associated miRs. In particular, we will discuss the contribution of miR to the initiation and progression of cSCCs. Although there are many obstacles to be overcome, clinical use of miRs as biomarkers for diagnosis, prediction of prognosis and target for therapies, will be a promising area in the future with more expression and functional role of miRs revealed.
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Affiliation(s)
- Xin Yu
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zheng Li
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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45
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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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46
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Paez-Colasante X, Figueroa-Romero C, Sakowski SA, Goutman SA, Feldman EL. Amyotrophic lateral sclerosis: mechanisms and therapeutics in the epigenomic era. Nat Rev Neurol 2015; 11:266-79. [PMID: 25896087 DOI: 10.1038/nrneurol.2015.57] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease of the motor neurons, which results in weakness and atrophy of voluntary skeletal muscles. Treatments do not modify the disease trajectory effectively, and only modestly improve survival. A complex interaction between genes, environmental exposure and impaired molecular pathways contributes to pathology in patients with ALS. Epigenetic mechanisms control the hereditary and reversible regulation of gene expression without altering the basic genetic code. Aberrant epigenetic patterns-including abnormal microRNA (miRNA) biogenesis and function, DNA modifications, histone remodeling, and RNA editing-are acquired throughout life and are influenced by environmental factors. Thus, understanding the molecular processes that lead to epigenetic dysregulation in patients with ALS might facilitate the discovery of novel therapeutic targets and biomarkers that could reduce diagnostic delay. These achievements could prove crucial for successful disease modification in patients with ALS. We review the latest findings regarding the role of miRNA modifications and other epigenetic mechanisms in ALS, and discuss their potential as therapeutic targets.
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Affiliation(s)
- Ximena Paez-Colasante
- Department of Neurology, University of Michigan, 1500 East Medical Centre Drive, 1914 Taubman Centre SPC 5316, Ann Arbor, MI 48109, USA
| | - Claudia Figueroa-Romero
- Department of Neurology, University of Michigan, 1500 East Medical Centre Drive, 1914 Taubman Centre SPC 5316, Ann Arbor, MI 48109, USA
| | - Stacey A Sakowski
- The A. Alfred Taubman Medical Research Institute, University of Michigan, 109 Zina Pitcher Place, 5017 A. Alfred Taubman Biomedical Science Research Building, Ann Arbor, MI 48109, USA
| | - Stephen A Goutman
- Department of Neurology, University of Michigan, 1500 East Medical Centre Drive, 1914 Taubman Centre SPC 5316, Ann Arbor, MI 48109, USA
| | - Eva L Feldman
- Department of Neurology, University of Michigan, 1500 East Medical Centre Drive, 1914 Taubman Centre SPC 5316, Ann Arbor, MI 48109, USA
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