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Chowdhury K, Lin S, Lai SL. Comparative Study in Zebrafish and Medaka Unravels the Mechanisms of Tissue Regeneration. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.783818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Tissue regeneration has been in the spotlight of research for its fascinating nature and potential applications in human diseases. The trait of regenerative capacity occurs diversely across species and tissue contexts, while it seems to decline over evolution. Organisms with variable regenerative capacity are usually distinct in phylogeny, anatomy, and physiology. This phenomenon hinders the feasibility of studying tissue regeneration by directly comparing regenerative with non-regenerative animals, such as zebrafish (Danio rerio) and mice (Mus musculus). Medaka (Oryzias latipes) is a fish model with a complete reference genome and shares a common ancestor with zebrafish approximately 110–200 million years ago (compared to 650 million years with mice). Medaka shares similar features with zebrafish, including size, diet, organ system, gross anatomy, and living environment. However, while zebrafish regenerate almost every organ upon experimental injury, medaka shows uneven regenerative capacity. Their common and distinct biological features make them a unique platform for reciprocal analyses to understand the mechanisms of tissue regeneration. Here we summarize current knowledge about tissue regeneration in these fish models in terms of injured tissues, repairing mechanisms, available materials, and established technologies. We further highlight the concept of inter-species and inter-organ comparisons, which may reveal mechanistic insights and hint at therapeutic strategies for human diseases.
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Zhou T, Zhou B, Zhao Y, Li Q, Song G, Zhu Z, Long Y, Cui Z. Development of a Mucus Gland Bioreactor in Loach Paramisgurnus dabryanus. Int J Mol Sci 2021; 22:ijms22020687. [PMID: 33445609 PMCID: PMC7827776 DOI: 10.3390/ijms22020687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/03/2021] [Accepted: 01/07/2021] [Indexed: 12/15/2022] Open
Abstract
Most currently available bioreactors have some defects in the expression, activity, or purification of target protein and peptide molecules, whereas the mucus gland of fish can overcome these defects to become a novel bioreactor for the biopharmaceutical industry. In this study, we have evaluated the practicability of developing a mucus gland bioreactor in loach (Paramisgurnus dabryanus). A transgenic construct pT2-krt8-IFN1 was obtained by subcloning the promoter of zebrafish keratin 8 gene and the type I interferon (IFN1) cDNA of grass carp into the SB transposon. The IFN1 expressed in CIK cells exhibited an antiviral activity against the replication of GCRV873 and activated two genes downstream of JAK-STAT signaling pathway. A transgenic loach line was then generated by microinjection of the pT2-krt8-IFN1 plasmids and in vitro synthesized capped SB11 mRNA. Southern blots indicated that a single copy of IFN1 gene was stably integrated into the genome of transgenic loach. The expression of grass carp IFN1 in transgenic loaches was detected with RT-PCR and Western blots. About 0.0825 µg of grass carp IFN1 was detected in 20 µL mucus from transgenic loaches. At a viral titer of 1 × 103 PFU/mL, plaque numbers on plates containing mucus from transgenic loaches reduced by 18% in comparison with those of the control, indicating that mucus of IFN1-transgenic loaches exhibited an antiviral activity. Thus, we have successfully created a mucus gland bioreactor that has great potential for the production of various proteins and peptides.
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Affiliation(s)
- Tong Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (T.Z.); (B.Z.); (Y.Z.); (Q.L.); (G.S.); (Z.Z.)
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bolan Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (T.Z.); (B.Z.); (Y.Z.); (Q.L.); (G.S.); (Z.Z.)
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yasong Zhao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (T.Z.); (B.Z.); (Y.Z.); (Q.L.); (G.S.); (Z.Z.)
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qing Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (T.Z.); (B.Z.); (Y.Z.); (Q.L.); (G.S.); (Z.Z.)
| | - Guili Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (T.Z.); (B.Z.); (Y.Z.); (Q.L.); (G.S.); (Z.Z.)
| | - Zuoyan Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (T.Z.); (B.Z.); (Y.Z.); (Q.L.); (G.S.); (Z.Z.)
| | - Yong Long
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (T.Z.); (B.Z.); (Y.Z.); (Q.L.); (G.S.); (Z.Z.)
- Correspondence: (Y.L.); (Z.C.); Tel.: +86-27-68780100 (Y.L.); +86-27-68780090 (Z.C.)
| | - Zongbin Cui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (T.Z.); (B.Z.); (Y.Z.); (Q.L.); (G.S.); (Z.Z.)
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
- Correspondence: (Y.L.); (Z.C.); Tel.: +86-27-68780100 (Y.L.); +86-27-68780090 (Z.C.)
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Mohanta R, Jayasankar P, Das Mahapatra K, Saha JN, Barman HK. Molecular cloning, characterization and functional assessment of the myosin light polypeptide chain 2 (mylz2) promoter of farmed carp, Labeo rohita. Transgenic Res 2014; 23:601-7. [PMID: 24740361 DOI: 10.1007/s11248-014-9798-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 04/03/2014] [Indexed: 01/07/2023]
Abstract
We cloned the 5'-flanking region (1.2 kb) of a muscle-specific gene, encoding myosin light chain 2 polypeptide (mylz2) of a farmed carp, Labeo rohita (rohu). Sequence analysis using TRANSFAC-database search identified the consensus cis acting regulatory elements of TATA-box and E (CANNTG)-box, including the monocyte enhancer factor 2 motif, implying that it is likely to be a functional promoter. The proximal promoter (~620 bp) was highly homologous with that of Danio rerio (zebrafish) as compared to Channa striatus (snakehead murrel) counterparts and showed less identity with Sparus auratus (gilthead sea bream), Xenopus laevis (African clawed frog) and Rattus norvegicus (Norway rat). Direct muscular (skeletal) injection of the construct containing the mylz2 promoter (0.6 kb) fused to a green fluorescent protein (GFP) reporter gene showed efficient expression in L. rohita, validating its functional activity. Further, the functional activity was confirmed by the observation that this promoter drove GFP expression in the skeletal muscle of transgenic rohu. The promoter may have potential applications for value-addition in ornamental fishes and studying gene regulatory functions.
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Affiliation(s)
- Ramya Mohanta
- Fish Genetics and Biotechnology Division, Central Institute of Freshwater Aquaculture (Indian Council of Agricultural Research), Kausalyaganga, Bhubaneswar, 751002, Odisha, India
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Lin YH, Peng KC, Pan CY, Wen ZH, Chen JY. Expression characterization and promoter activity analysis of the tilapia (Oreochromis niloticus) myosin light chain 3 promoter in skeletal muscle of fish. Transgenic Res 2014; 23:125-34. [PMID: 24146265 DOI: 10.1007/s11248-013-9758-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 10/02/2013] [Indexed: 12/01/2022]
Abstract
A tilapia (Oreochromis niloticus) myosin light chain 3 (Mlc3) promoter region (~4.3 kb) was isolated and characterized. Sequence analysis of the clone revealed high similarity with a tilapia gene encoding the Mlc3 promoter region, exon 1, and intron 1. The clone contained several putative binding sequences for transcription factors, including MEF-2, MYOG, MyoD, PKNOX1, and AREB6. Deletion of a region of the tilapia Mlc3 promoter (801 to -3,881 bp) enhanced promoter activity, as determined by direct injection of a luciferase reporter construct into skeletal muscle of Archocentrus nigrofasciatus. These findings suggest that the region between -801 and -3,881 bp may contain negative regulatory elements. Stable germline transgenic strains of the ornamental fish species A. nigrofasciatus var. carrying the Taiwan coral red fluorescent protein (TcRFP) driven by the Mlc3 promoter were established. F1 adult transgenic A. nigrofasciatus var. exhibited brilliant pink fluorescence in skeletal muscles in the daylight. Therefore, our current study demonstrates the feasibility of using the tilapia Mlc3 promoter to drive fluorescence in new fish species, such as Perciformes.
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Affiliation(s)
- Yu-Ho Lin
- Marine Biomedical Laboratory and Center for Translational Biopharmaceuticals, Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung, 804, Taiwan
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Cho YS, Lee SY, Kim DS, Nam YK. Characterization of stable fluorescent transgenic marine medaka (Oryzias dancena) lines carrying red fluorescent protein gene driven by myosin light chain 2 promoter. Transgenic Res 2013; 22:849-59. [PMID: 23188170 DOI: 10.1007/s11248-012-9675-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 11/14/2012] [Indexed: 01/09/2023]
Abstract
Stable transgenic germlines carrying the red fluorescence protein (RFP) gene (rfp) driven by fast skeletal myosin light chain-2 gene (mlc2f) promoter were established in a truly euryhaline fish species, the marine medaka (Oryzias dancena; Beloniformes). Transgenic lines contained transgene copy numbers varying from a single copy to more than 230 copies per genome. Although the transgenic founders displayed mosaic and/or ectopic expression of the RFP signal, the resultant F1 transgenics and their progeny showed consistently stable transmission of the transgenic locus and uniform RFP signal through several subsequent generations. In adult transgenics, an authentic brilliant red fluorescence was achieved over the skeletal muscles of the transgenic individuals, which might be sufficient for ornamental display. Expression analysis of the transgenic mRNAs indicated that rfp transcripts were predominantly expressed in the skeletal muscles. Different transgenic lines displayed different levels of transgene expression at the mRNA, protein, and phenotypic levels. However, the efficiency of transgene expression was independent of the transgene copy number. The RFP protein levels were consistently stable in the transgenic fish muscles through several generations, up to F5. The results of this study suggest that transgenic marine medaka that acquire strong fluorescent signals in their skeletal muscles can be developed as a promising, novel ornamental fish for display in both freshwater and seawater aquaria.
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Affiliation(s)
- Young Sun Cho
- Institute of Marine Living Modified Organisms, Pukyong National University, Busan 608-737, Korea
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Lee SY, Kim DS, Nam YK. Molecular characterization of fast skeletal muscle-specific myosin light chain 2 gene (mlc2f) in marine medaka Oryzias dancena. Genes Genomics 2013. [DOI: 10.1007/s13258-013-0071-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Shimizu A, Shimizu N. Dual promoter expression system with insulator ensures a stringent tissue-specific regulation of two reporter genes in the transgenic fish. Transgenic Res 2013; 22:435-44. [PMID: 22983842 DOI: 10.1007/s11248-012-9653-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 09/05/2012] [Indexed: 12/22/2022]
Abstract
The precise control of spatiotemporal expression of target genes is crucial when establishing transgenic animals, and the introduction of genes for fluorescent marker proteins is inevitable for accelerating research at molecular levels. To assist this, we constructed a novel dual promoter expression vector for two independent reporter genes, green fluorescent protein (GFP) and red fluorescent protein (mCherry). Their expression is designed under the control of two distinct tissue-specific promoters, e.g. zebrafish cardiac muscle-specific promoter (cmlc2) and medaka skeletal muscle-specific promoter (myl2) derived from the myosin light chain 2 genes, and they are placed in a head-to-head orientation. After microinjecting the dual promoter expression vector into fertilized eggs of medaka, the developing fish embryos and the resulting transgenic fish lines showed strong GFP signal in the whole body (skeletal muscle) and mCherry signal in the heart (cardiac muscle). However, weak GFP signal was observed in the heart, indicating a leakiness of the skeletal muscle promoter. To improve the stringency of dual promoter expression, we inserted two chicken-derived insulators, e.g. tandem copies of the core sequence (250 bp) of cHS4 (5'-hypersensitive site-4 chicken beta-globin insulator), in the boundary of two promoters. The dual promoter expression vector with insulator now ensured the stringent tissue-specific expression in the transgenic fish lines. Thus, our dual promoter expression system with insulator is compatible to the conventional IRES and fused reporter gene systems and will be an alternative method to produce the transgenic fishes.
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Affiliation(s)
- Atsushi Shimizu
- Department of Molecular Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
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Froschauer A, Khatun MM, Sprott D, Franz A, Rieger C, Pfennig F, Gutzeit HO. oct4-EGFP reporter gene expression marks the stem cells in embryonic development and in adult gonads of transgenic medaka. Mol Reprod Dev 2012; 80:48-58. [PMID: 23139203 DOI: 10.1002/mrd.22135] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 10/30/2012] [Indexed: 11/12/2022]
Abstract
Maintenance of pluripotency in stem cells is tightly regulated among vertebrates. One of the key genes in this process is oct4, also referred to as pou5f1 in mammals and pou2 in teleosts. Pou5f1 evolved by duplication of pou2 early in the tetrapod lineage, but only monotremes and marsupials retained both genes. Either pou2 or pou5f1 was lost from the genomes of the other tetrapods that have been analyzed to date. Consequently, these two homologous genes are often designated oct4 in functional studies. In most vertebrates oct4 is expressed in pluripotent cells of the early embryo until the blastula stage, and later persist in germline stem cells until adulthood. The isolation and analysis of stem cells from embryo or adult individuals is hampered by the need for reliable markers that can identify and define the cell populations. Here, we report the faithful expression of EGFP under the control of endogenous pou2/oct4 promoters in transgenic medaka (Oryzias latipes). In vivo imaging in oct4-EGFP transgenic medaka reveals the temporal and spatial expression of pou2 in embryos and adults alike. We describe the temporal and spatial patterns of endogenous pou2 and oct4-EGFP expression in medaka with respect to germline and adult stem cells, and discuss applications of oct4-EGFP transgenic medaka in reproductive and stem cell biology.
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Ofelio C, Cariani A, Trentini M, Guarniero I. Novel PCR-based assay for rapid identification of Red Fluorescent Proteins in GloFish and GloFish x wildtype zebrafish (Danio rerio) hybrids. ACTA ACUST UNITED AC 2012. [DOI: 10.1080/11250003.2012.718805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Gautier A, Sohm F, Joly JS, Le Gac F, Lareyre JJ. The Proximal Promoter Region of the Zebrafish gsdf Gene Is Sufficient to Mimic the Spatio-Temporal Expression Pattern of the Endogenous Gene in Sertoli and Granulosa Cells1. Biol Reprod 2011; 85:1240-51. [DOI: 10.1095/biolreprod.111.091892] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Boon Ng GH, Gong Z. Maize Ac/Ds transposon system leads to highly efficient germline transmission of transgenes in medaka (Oryzias latipes). Biochimie 2011; 93:1858-64. [DOI: 10.1016/j.biochi.2011.07.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Accepted: 07/06/2011] [Indexed: 11/25/2022]
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Fan CY, Simmons SO, Law SHW, Jensen K, Cowden J, Hinton D, Padilla S, Ramabhadran R. Generation and characterization of neurogenin1-GFP transgenic medaka with potential for rapid developmental neurotoxicity screening. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2011; 105:127-135. [PMID: 21718657 DOI: 10.1016/j.aquatox.2011.05.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Revised: 05/23/2011] [Accepted: 05/28/2011] [Indexed: 05/31/2023]
Abstract
Fish models such as zebrafish and medaka are increasingly used as alternatives to rodents in developmental and toxicological studies. These developmental and toxicological studies can be facilitated by the use of transgenic reporters that permit the real-time, noninvasive observation of the fish. Here we report the construction and characterization of transgenic medaka lines expressing green fluorescent protein (GFP) under the control of the zebrafish neurogenin 1 (ngn1) gene promoter. Neurogenin (ngn1) is a helix-loop-helix transcription factor expressed in proliferating neuronal progenitor cells early in neuronal differentiation and plays a crucial role in directing neurogenesis. GFP expression was detected from 24 h post-fertilization until hatching, in a spatial pattern consistent with the previously reported zebrafish ngn1 expression. Temporal expression of the transgene parallels the expression profile of the endogenous medaka ngn1 transcript. Further, we demonstrate that embryos from the transgenic line permit the non-destructive, real-time screening of ngn1 promoter-directed GFP expression in a 96-well format, enabling higher throughput studies of developmental neurotoxicants. This strain has been deposited with and maintained by the National BioResource Project and is available on request (http://www.shigen.nig.ac.jp/medaka/strainDetailAction.do?quickSearch=true&strainId=5660).
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Affiliation(s)
- Chun-Yang Fan
- Integrated Systems Toxicology and Toxicity Assessment Divisions, National Health and Environmental Effects Research Laboratory, US EPA, Research Triangle Park, NC 27711, USA
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Cows I, Bolland J, Nunn A, Kerins G, Stein J, Blackburn J, Hart A, Henry C, Britton JR, Coop G, Peeler E. Defining environmental risk assessment criteria for genetically modified fishes to be placed on the EU market. ACTA ACUST UNITED AC 2010. [DOI: 10.2903/sp.efsa.2010.en-69] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- I.G. Cows
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - J.D. Bolland
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - A.D. Nunn
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - G. Kerins
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - J. Stein
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - J. Blackburn
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - A. Hart
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - C. Henry
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - J. R. Britton
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - G. Coop
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
| | - E. Peeler
- Hull International Fisheries Institute, Food and Environmental Research Agency, Bournemouth University, Center for Environment, Fisheries and Aquaculture Science
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Chatterjee S, Min L, Karuturi RKM, Lufkin T. The role of post-transcriptional RNA processing and plasmid vector sequences on transient transgene expression in zebrafish. Transgenic Res 2009; 19:299-304. [PMID: 19662507 DOI: 10.1007/s11248-009-9312-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Accepted: 07/29/2009] [Indexed: 12/28/2022]
Abstract
A tissue-specific transgenic model was employed to test the effects of intron and vector sequences on transgene expression in zebrafish after microinjection. In this model, the 2.3 kb promoter taken from the 5' upstream region of the transcription initiation site of keratin 4 (krt4) was used to drive the enhanced green fluorescence protein (EGFP) reporter gene in a transgenic vector. For assaying the strength of EGFP expression, the effects of including an intron before the EGFP coding region or using different forms of DNA, including circular plasmid, linear full-length plasmid, and the linear transgene coding region without any prokaryotic vector sequence, were tested. After microinjection, the transgene expression was analyzed using transient assays. Consequently, further comparative analysis supported by Fisher's exact test was performed based on the data generated by analyzing the strength of the transgene expression. It was shown that inclusion of an intron in the construct increases the transgene expression in a transient transgenic zebrafish assay. Furthermore, the circular plasmid containing the transgene produced the strongest EGFP expression.
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Affiliation(s)
- Sumantra Chatterjee
- Stem Cell and Developmental Biology, Genome Institute of Singapore, 60 Biopolis Street, Singapore, 138672, Singapore
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Pan X, Zhan H, Gong Z. Ornamental expression of red fluorescent protein in transgenic founders of white skirt tetra (Gymnocorymbus ternetzi). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2008; 10:497-501. [PMID: 18449602 DOI: 10.1007/s10126-008-9094-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Revised: 03/03/2008] [Accepted: 03/03/2008] [Indexed: 05/22/2023]
Abstract
Although the transgenic technology has been successfully used to generate fluorescent zebrafish and medaka for ornamental purposes, the practicability of the technology has not been demonstrated in other ornamental fish species. In the present study, we have tested the transgenic technology in a bona fide ornamental fish species, the white skirt tetra (Gymnocorymbus ternetzi). First, its embryonic development was briefly described. Second, we successfully introduced an rfp (red fluorescent protein) gene construct driven by a strong muscle-specific mylz2 promoter from the zebrafish into the white skirt tetra and demonstrated muscle-specific expression of the RFP reporter protein. Importantly, the vivid red fluorescent color was prominently visible in adult transgenic founders under the normal daylight, like the currently marketed red fluorescent transgenic zebrafish. Thus, our current study demonstrated the feasibility of using the well-characterized zebrafish mylz2 promoters to produce useful fluorescent ornamental fish in other fish species by the transgenic technology.
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Affiliation(s)
- Xiufang Pan
- Department of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
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Andreeva LE, Khaidarova NV, Sleptsova LA, Rodriges-Blanco EV, Dicheva MA, Dvoryanchikov GA, Tarantul VZ. The effect of regulatory sequences of αSl-casein gene on the expression of the lacZ-gene in loach Misgurnus fossilis L. transgenic embryos. RUSS J GENET+ 2008. [DOI: 10.1134/s1022795408070156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Recent papers on zebrafish and other aquarium fish models. Zebrafish 2008; 2:215-24. [PMID: 18248196 DOI: 10.1089/zeb.2005.2.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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