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Emami Nejad A, Mostafavi Zadeh SM, Nickho H, Sadoogh Abbasian A, Forouzan A, Ahmadlou M, Nedaeinia R, Shaverdi S, Manian M. The role of microRNAs involved in the disorder of blood-brain barrier in the pathogenesis of multiple sclerosis. Front Immunol 2023; 14:1281567. [PMID: 38193092 PMCID: PMC10773759 DOI: 10.3389/fimmu.2023.1281567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/30/2023] [Indexed: 01/10/2024] Open
Abstract
miRNAs are involved in various vital processes, including cell growth, development, apoptosis, cellular differentiation, and pathological cellular activities. Circulating miRNAs can be detected in various body fluids including serum, plasma, saliva, and urine. It is worth mentioning that miRNAs remain stable in the circulation in biological fluids and are released from membrane-bound vesicles called exosomes, which protect them from RNase activity. It has been shown that miRNAs regulate blood-brain barrier integrity by targeting both tight junction and adherens junction molecules and can also influence the expression of inflammatory cytokines. Some recent studies have examined the impact of certain commonly used drugs in Multiple Sclerosis on miRNA levels. In this review, we will focus on the recent findings on the role of miRNAs in multiple sclerosis, including their role in the cause of MS and molecular mechanisms of the disease, utilizing miRNAs as diagnostic and clinical biomarkers, using miRNAs as a therapeutic modality or target for Multiple Sclerosis and drug responses in patients, elucidating their importance as prognosticators of disease progression, and highlighting their potential as a future treatment for MS.
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Affiliation(s)
| | - Seyed Mostafa Mostafavi Zadeh
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hamid Nickho
- Department of Immunology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Sadoogh Abbasian
- Department of Internal Medicine, School of Medicine, Amiralmomenin Hospital, Arak University of Medical Sciences, Arak, Iran
| | - Azim Forouzan
- Department of Internal Medicine, School of Medicine, Amiralmomenin Hospital, Arak University of Medical Sciences, Arak, Iran
| | - Mojtaba Ahmadlou
- Department of Biostatistics, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Reza Nedaeinia
- Pediatric Inherited Diseases Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saham Shaverdi
- Department of Biology, Payame Noor University (PNU), Tehran, Iran
| | - Mostafa Manian
- Department of Medical Laboratory Science, Faculty of Medicine, Islamic Azad University, Kermanshah, Iran
- Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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2
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Qian P, Jiang T, Wang X, Song F, Chen C, Shen X. bmo-miR-275 down-regulates expression of Bombyx mori sericin gene 2 in vitro. PLoS One 2018; 13:e0190464. [PMID: 29381729 PMCID: PMC5790233 DOI: 10.1371/journal.pone.0190464] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 12/17/2017] [Indexed: 12/21/2022] Open
Abstract
We hypothesized that bmo-miR-275 has a potential regulatory function regarding the expression of sericin gene 2 (BmSer-2). First, we examined the expression of bmo-miR-275 and its target gene BmSer-2 in seven different tissues from 5th instar day-3 silkworm larvae. The results showed that they were both specifically expressed in the middle silk gland, implying that spatio-temporal conditions are required for bmo-miR-275 to regulate the expression of BmSer-2. To test this hypothesis, we constructed a pri-bmo-miR-275 expressing plasmid pcDNA3.0 [ie1-egfp-pri-bmo-miR-275-SV40] and BmSer-2-3´UTR recombinant reporter plasmids pGL3.0 [A3-luc-Ser-2-3′ UTR-SV40]. Finally, BmN cells were harvested and luciferase activity was detected. Results showed that luciferase activity was reduced significantly (P<0.05) in BmN cells co-transfected with pcDNA3.0 [ie1-egfp-pri-bmo-miR-275-SV40] and pGL3.0 [A3-luc-Ser-2-3’UTR-SV40], suggesting that bmo-miR-275 can down-regulate the expression of BmSer-2 in vitro. Our results improve the understanding of the regulatory function of Bombyx mori miRNA on the expression of genes regulating silk formation.
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Affiliation(s)
- Ping Qian
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
| | - Tao Jiang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Xin Wang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Fei Song
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Chen Chen
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Xingjia Shen
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu, China
- * E-mail:
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3
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Pereira P, Queiroz JA, Figueiras A, Sousa F. Current progress on microRNAs-based therapeutics in neurodegenerative diseases. WILEY INTERDISCIPLINARY REVIEWS-RNA 2016; 8. [PMID: 27882692 DOI: 10.1002/wrna.1409] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 10/07/2016] [Accepted: 10/17/2016] [Indexed: 12/17/2022]
Abstract
MicroRNAs (miRNAs)-based therapy has recently emerged as a promising strategy in the treatments of neurodegenerative diseases. Thus, in this review, the most recent and important challenges and advances on the development of miRNA therapeutics for brain targeting are discussed. In particular, this review highlights current knowledge and progress in the field of manufacturing, recovery, isolation, purification, and analysis of these therapeutic oligonucleotides. Finally, the available miRNA delivery systems are reviewed and an analysis is presented in what concerns to the current challenges that have to be addressed to ensure their specificity and efficacy. Overall, it is intended to provide a perspective on the future of miRNA-based therapeutics, focusing the biotechnological approach to obtain miRNAs. WIREs RNA 2017, 8:e1409. doi: 10.1002/wrna.1409 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Patrícia Pereira
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - João A Queiroz
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - Ana Figueiras
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal.,REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Coimbra, Coimbra, Portugal
| | - Fani Sousa
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
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4
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Pereira P, Pedro AQ, Tomás J, Maia CJ, Queiroz JA, Figueiras A, Sousa F. Advances in time course extracellular production of human pre-miR-29b from Rhodovulum sulfidophilum. Appl Microbiol Biotechnol 2016; 100:3723-34. [DOI: 10.1007/s00253-016-7350-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 01/12/2016] [Accepted: 01/23/2016] [Indexed: 02/08/2023]
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5
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Chen C, Fan YY, Wang X, Song F, Jiang T, Qian P, Tang SM, Shen XJ. bmo-miR-0001 and bmo-miR-0015 down-regulate expression of Bombyx mori fibroin light chain gene in vitro. J Zhejiang Univ Sci B 2016; 17:127-35. [PMID: 26834013 DOI: 10.1631/jzus.b1500078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Based on bioinformatic analysis, we selected two novel microRNAs (miRNAs), bmo-miR-0001 and bmo-miR-0015, from high-throughput sequencing of the Bombyx mori larval posterior silk gland (PSG). Firstly, we examined the expression of bmo-miR-0001 and bmo-miR 12 different tissues of the 5th instar Day-3 larvae of the silkworm. The results showed that the expression levels of both bmo-miR-0001 and bmo-miR-0015 were obviously higher in the PSG than in other tissues, implying there is a spatio-temporal condition for bmo-miR-0001 and bmo-miR-0015 to regulate the expression of BmFib-L. To test this hypothesis, we constructed pri-bmo-miR-0001 expressing the plasmid pcDNA3.0 and pri-bmo-miR-0015 expressing the plasmid pcDNA3.0 [ie1-egfp-pri-bmo-miR-0015-SV40]. Finally, the BmN cells were harvested and luciferase activity was detected. The results showed that luciferase activity was reduced significantly (P<0.05) in BmN cells co-transfected by pcDNA3.0 [ie1-egfp-pri-bmo-miR-0001-SV40] or pcDNA3.0 with pGL3.0 [A3-luc-Fib-L-3'UTR-SV40], suggesting that both bmo-miR-0001 and bmo-miR-0015 can down-regulate the expression of BmFib-L in vitro.
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Affiliation(s)
- Chen Chen
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
| | - Yang-yang Fan
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
| | - Xin Wang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
| | - Fei Song
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
| | - Tao Jiang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
| | - Ping Qian
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
| | - Shun-ming Tang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
| | - Xing-jia Shen
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, China.,Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
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Liu Y, Wang L, Wang ZJ. Analysis of the biological function of ELDF15 using an antisense recombinant expression vector. Asian Pac J Cancer Prev 2014; 15:9131-6. [PMID: 25422190 DOI: 10.7314/apjcp.2014.15.21.9131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
ELDF15, homologous with AT2 receptor-interaction protein 1 (ATIP1), may play an important role in cell differentiation, proliferation, and carcinogenesis. We aimed to understand the biological function of ELDF15 via construction and transfection of a recombinant expression vector containing antisense ELDF15. Recombinant expression vectors were successfully constructed and transfected into K562 cells. A stable transfectant, known as pXJ41-asELDF15, stably produced antisense ELDF15. Compared with K562 and K562-zeo cells, K562- pXJ41-asELDF15 cells showed inhibition of cell proliferation. RT-PCR analysis showed that the expression and protein level of ELDF15 decreased significantly in K562 cells transfected with pXJ41-asELDF15. Expression of hemoglobin increased in K562 cells transfected with pXJ41-asELDF15 by benzidine staining. increases NBT reduction activity in K562 cells transfected with pXJ41-asELDF15.Colony forming efficiency in two-layer soft agar was clearly inhibited as assessed by electron microscopy. These results suggest that ELDF15 plays a potential role in cell differentiation, proliferation and carcinogenesis.
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Affiliation(s)
- Yan Liu
- Chinese Center for Disease Control and Prevention, Beijing, China E-mail :
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7
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Wang X, Tang SM, Shen XJ. Overview of research on Bombyx mori microRNA. JOURNAL OF INSECT SCIENCE (ONLINE) 2014; 14:133. [PMID: 25368077 PMCID: PMC4222307 DOI: 10.1093/jis/14.1.133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 05/03/2013] [Indexed: 06/04/2023]
Abstract
MicroRNAs (miRNAs) constitute some of the most significant regulatory factors involved at the post-transcriptional level after gene expression, contributing to the modulation of a large number of physiological processes such as development, metabolism, and disease occurrence. This review comprehensively and retrospectively explores the literature investigating silkworm, Bombyx mori L. (Lepidoptera: Bombicidae), miRNAs published to date, including discovery, identification, expression profiling analysis, target gene prediction, and the functional analysis of both miRNAs and their targets. It may provide experimental considerations and approaches for future study of miRNAs and benefit elucidation of the mechanisms of miRNAs involved in silkworm developmental processes and intracellular activities of other unknown non-coding RNAs.
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Affiliation(s)
- Xin Wang
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Jiangsu University of Science and Technology, Zhenjiang City 212018 Jiangsu Province, People's Republic of China
| | - Shun-ming Tang
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Jiangsu University of Science and Technology, Zhenjiang City 212018 Jiangsu Province, People's Republic of China
| | - Xing-jia Shen
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Jiangsu University of Science and Technology, Zhenjiang City 212018 Jiangsu Province, People's Republic of China
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Song F, Huang YC, Wang X, Tang S, Shen X. Bmo-miR-9A down regulates the expression of Bm-ase gene in vitro. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2013; 39:194-9. [PMID: 23964519 DOI: 10.1134/s1068162013020052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
MicroRNAs (miRNAs) are a class of non-protein coding small RNAs of 18-24 nucleotides in length that regulate expression of genes at post-transcriptional levels and play multiple roles in biological processes. Bm-ase plays an important role in the course of nerve development of the silkworm, Bombyx mori. Bmo-miR-9a is a conservative miRNA. By using target prediction software RNA22 and RNAhybrid, we found a target site of Bmo-miR-9a in the 3'UTR of Bm-ase gene. To verify the regulation function of Bmo-miR-9a on the expression of Bm-ase gene, a Bmo-miR-9a over-expressing vector and Bm-ase 3'UTR fused firefly luciferase gene reporter plasmid were constructed, respectively. Then they were used to co-transfect the BmN cells. The result showed that luciferase activity in the co-transfected cells was suppressed compared with the control. A similar result was obtained when BmN cells were co-transfected with artificial synthetic Bmo-miR-9a mimics and Bm-ase 3'UTR fused luciferase reporter plasmid. These results suggest that Bmo-miR-9a can down regulate the expression of Bm-ase gene.
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Affiliation(s)
- Fei Song
- Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212018, China
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Zhu L, Masaki Y, Tatsuke T, Li Z, Mon H, Xu J, Lee JM, Kusakabe T. A MC motif in silkworm Argonaute 1 is indispensible for translation repression. INSECT MOLECULAR BIOLOGY 2013; 22:320-330. [PMID: 23521747 DOI: 10.1111/imb.12023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Small RNA-mediated gene silencing is a fundamental gene regulatory mechanism, which is conserved in many organisms. Argonaute (Ago) family proteins in the RNA-induced silencing complex (RISC) play crucial roles in RNA interference (RNAi) pathways. In the silkworm Bombyx mori, four Ago proteins have been identified, named as Ago1, Ago2, Ago3 and Siwi. Ago2 participates in double-stranded RNA (dsRNA)-induced RNAi, whereas Ago3 and Siwi are involved in the Piwi-interacting RNA (piRNA) pathway. However, there is no experimental evidence concerning silkworm Ago1 (BmAgo1) in the RNAi mechanism. In the present study, we analysed the function of BmAgo1 in the microRNA (miRNA)-mediated RNAi pathway using tethering and miRNA sensor reporter assays. These results clearly demonstrate that BmAgo1 plays an indispensable role in translation repression in silkworm. Moreover, coimmunoprecipitation data indicated that BmAgo1 interacts with BmDcp2, an orthologue of mRNA-decapping enzyme 2 (Dcp2) protein in the Drosophila processing-bodies (P-bodies). Substitutions of two conserved phenylalanines (F522 and F557) by valines in the MC motif strongly impaired the function of BmAgo1 in translation repression and its localization in P-bodies, suggesting that these two amino acid residues in the MC motif of BmAgo1 are prerequisites for mRNA translation repression in B. mori.
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Affiliation(s)
- L Zhu
- Laboratory of Silkworm Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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Huang Y, Zou Q, Song F, Wang X, Shen XJ. The regulation of silkworm fibroin L chain production by miRNA-965 and miRNA-1926 in insect cells. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2013. [PMID: 23189562 DOI: 10.1134/s1068162012030168] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
MicroRNAs (miRNAs) are an abundant class of approximately 22-nucleotide (nt)-short noncoding RNA molecules present in the genomes of all multicellular organisms that act through base pairing to partially complementary sequences of the 3'untranslated region (UTR) of targeted mRNAs. Using bioinformatic approach, we found that the 3'UTR of the Fibroin L chain (Fib-L) mRNA matches perfectly the nucleotides 2-8 at the 5' end of the miRNA-965 and miRNA-1926. These two miRNAs might act as regulators of Fib-L gene expression at the post-transcriptional level. To examine whether Fib-L is directly targeted by miRNA-965 and miRNA-1926 in vitro, miRNA expression vectors and target reporter vector with 3'UTR of Fib-L were constructed respectively. Two vectors were co-transfected into Sf21cells. The luciferase assay showed that miRNA-965 and miRNA-1926 may down regulate the expression of Fib-L via complementary interaction with the target sites in 3'UTR.
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Affiliation(s)
- Yong Huang
- Animal Science and Technology College, He Nan University of Science and Technology, Luoyang City 471003, Henan Province, PR China
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Yang L, Lu X, Liu Y, Lv Z, Chen J, Yu W, Zhang Y, Nie Z. Expression analysis of miRNAs in BmN cells. Gene 2012; 505:240-5. [PMID: 22713175 DOI: 10.1016/j.gene.2012.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 06/09/2012] [Accepted: 06/11/2012] [Indexed: 10/28/2022]
Abstract
MicroRNAs (miRNAs) are the family of noncoding single-strand RNA molecules of 21-25 nucleotides in length and play a broad and key regulation role in various physiological and pathological processes including differentiation, apoptosis, proliferation, and tumorigenesis. In Bombyx mori, a total of 487 pre-miRNAs and 562 mature miRNAs were identified by experimental or computational approaches, but their functions remain unknown. To carry out the research of gain-of-function of miRNAs in BmN cells, we firstly identified the endogenous expression of miRNAs in BmN cells by microarray and found that only 73 miRNAs could be detected by miRNA microarray. Then three low abundance or undetected miRNAs, pri-mir-1a, pri-mir-8 and pri-mir-133, were selected to express in BmN cells. The eukaryotic expression vector pIEx-1 harboring baculovirus ie1 promoter and hr5 enhancer was screened and used for expressing miRNA in BmN cells. Three miRNA expression vectors pIEx-1-EGFP-pri-mir-1a/8/133 were constructed, which contained the three corresponding pri-miRNA sequences, respectively. The constructed miRNA vectors were successfully transfected into BmN cells and the qRT-PCR analysis showed that relative abundance of bmo-mir-1a, bmo-mir-8 and bmo-mir-133 in BmN cells transfected with the pIEx-1-EGFP-pri-mir-1a/8/133 is as 32, 4.4 and 904 times as that in BmN cells transfected with the control vector pIEx-1-EGFP, respectively. The present work lays a foundation for the further functional studies of miRNAs in silkworm.
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Affiliation(s)
- Lancui Yang
- Institute of Biochemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
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Huang Y, Zou Q, Shen XJ, Yu XL, Wang ZB, Cheng XC. Construction of baculovirus expression vector of miRNAs and its expression in insect cells. MOLECULAR GENETICS, MICROBIOLOGY AND VIROLOGY 2012. [DOI: 10.3103/s0891416812020036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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