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Coogan M, Xing D, Su B, Alston V, Johnson A, Khan M, Khalil K, Elaswad A, Li S, Wang J, Lu C, Wang W, Hettiarachchi D, Shang M, Hasin T, Qin Z, Cone R, Butts IAE, Dunham RA. CRISPR/Cas9-mediated knock-in of masu salmon (Oncorhyncus masou) elongase gene in the melanocortin-4 (mc4r) coding region of channel catfish (Ictalurus punctatus) genome. Transgenic Res 2023; 32:251-264. [PMID: 37468714 DOI: 10.1007/s11248-023-00346-w] [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: 07/08/2022] [Accepted: 03/24/2023] [Indexed: 07/21/2023]
Abstract
Channel catfish, Ictalurus punctatus, have limited ability to synthesize Ω-3 fatty acids. The ccβA-msElovl2 transgene containing masu salmon, Oncorhynchus masou, elongase gene driven by the common carp, Cyprinus carpio, β-actin promoter was inserted into the channel catfish melanocortin-4 receptor (mc4r) gene site using the two-hit two-oligo with plasmid (2H2OP) method. The best performing sgRNA resulted in a knockout mutation rate of 92%, a knock-in rate of 54% and a simultaneous knockout/knock-in rate of 49%. Fish containing both the ccβA-msElovl2 transgene knock-in and mc4r knockout (Elovl2) were 41.8% larger than controls at 6 months post-hatch (p = 0.005). Mean eicosapentaenoic acid (EPA, C20:5n-3) levels in Elov2 mutants and mc4r knockout mutants (MC4R) were 121.6% and 94.1% higher than in controls, respectively (p = 0.045; p = 0.025). Observed mean docosahexaenoic acid (DHA, C22:6n-3) and total EPA + DHA content was 32.8% and 45.1% higher, respectively, in Elovl2 transgenic channel catfish than controls (p = 0.368; p = 0.025). To our knowledge this is the first example of genome engineering to simultaneously target transgenesis and knock-out a gene in a commercially important aquaculture species for multiple improved performance traits. With a high transgene integration rate, improved growth, and higher omega-3 fatty acid content, the use of Elovl2 transgenic channel catfish appears beneficial for application on commercial farms.
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Affiliation(s)
- Michael Coogan
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
| | - De Xing
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Baofeng Su
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Veronica Alston
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Andrew Johnson
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Mohd Khan
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Karim Khalil
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Ahmed Elaswad
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Shangjia Li
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Jinhai Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Cuiyu Lu
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Wenwen Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Darshika Hettiarachchi
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Mei Shang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Tasnuba Hasin
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Zhenkui Qin
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Roger Cone
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Ian A E Butts
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Rex A Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
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Xing D, Li S, Shang M, Wang W, Zhang Q, Wang J, Hasin T, Hettiarachchi D, Alston V, Bern L, Parrales AP, Lu C, Coogan M, Johnson A, Qin Z, Su B, Dunham R. A New Strategy for Increasing Knock-in Efficiency: Multiple Elongase and Desaturase Transgenes Knock-in by Targeting Long Repeated Sequences. ACS Synth Biol 2022; 11:4210-4219. [PMID: 36332126 DOI: 10.1021/acssynbio.2c00252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CRISPR/Cas9-mediated knock-in (KI) has a wide application in gene therapy, gene function study, and transgenic breeding programs. Unlike gene therapy, which requires accurate KI to correct gene mutation, transgenic breeding programs can accept robust KI as long as integration does not interrupt normal gene functions and result in any negative pleiotropic effects. High KI efficiency is required to reduce the breeding cost and shorten the breeding period, especially in transferring multiple foreign genes to a single individual. To elevate the KI efficacy and achieve multiple gene KIs simultaneously, we introduced a new strategy that enables transgene integration into numerous sites of the genome by targeting long repeated sequences (LRSs). Using this simple strategy, for the first time we successfully generated transgenic fish carrying the masu salmon (Oncorhynchus masou) elovl2 gene and rabbitfish (Siganus canaliculatus) Δ4 fad and Δ6 fad genes, and achieved robust target KI of elovl2 and Δ6 fad genes at multiple sites of LRS1 and LRS3, respectively, in the initial generation. This demonstrated that donor plasmid homology arms, which were nearly identical but not completely the same as the genome sequence, still led to on-target KI. Although the target KI efficiencies at LRS1, LRS2, and LRS3 sites were still relatively low in the current study, it is very promising that 100% KI efficiency in the future could be realized and perfected by selection of better LRSs and optimization of sgRNAs.
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Affiliation(s)
- De Xing
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Shangjia Li
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Mei Shang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Wenwen Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Qin Zhang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Jinhai Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Tasnuba Hasin
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Darshika Hettiarachchi
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Veronica Alston
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Logan Bern
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Abel Paladines Parrales
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Cuiyu Lu
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Michael Coogan
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Andrew Johnson
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Zhenkui Qin
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao266003, China
| | - Baofeng Su
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
| | - Rex Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, Alabama36849, United States
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Fujimori C, Umatani C, Chimura M, Ijiri S, Bando H, Hyodo S, Kanda S. In vitro and in vivo gene transfer in the cloudy catshark Scyliorhinus torazame. Dev Growth Differ 2022; 64:558-565. [PMID: 36376176 PMCID: PMC10099843 DOI: 10.1111/dgd.12824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/20/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022]
Abstract
Cartilaginous fishes have various unique physiological features such as a cartilaginous skeleton and a urea-based osmoregulation strategy for adaptation to their marine environment. Also, because they are a sister group of bony vertebrates, understanding their unique features is important from an evolutionary perspective. However, genetic engineering based on gene functions as well as cellular behavior has not been effectively utilized in cartilaginous fishes. This is partly because their reproductive strategy involves internal fertilization, which results in difficulty in microinjection into fertilized eggs at the early developmental stage. Here, to identify efficient gene transfer methods in cartilaginous fishes, we examined the effects of various methods both in vitro and in vivo using the cloudy catshark, a candidate model cartilaginous fish species. In all methods, green fluorescent protein (GFP) expression was used to evaluate exogenous gene transfer. First, we examined gene transfer into primary cultured cells from cloudy catshark embryos by lipofection, polyethylenimine (PEI) transfection, adenovirus infection, baculovirus infection, and electroporation. Among the methods tested, lipofection, electroporation, and baculovirus infection enabled the successful transfer of exogenous genes into primary cultured cells. We then attempted in vivo transfection into cloudy catshark embryos by electroporation and baculovirus infection. Although baculovirus-injected groups did not show GFP fluorescence, electroporation successfully introduced GFP into muscle cells. Furthermore, we succeeded in GFP transfer into adult tissues by electroporation. The in vitro and in vivo gene transfer methods that worked in this study may open ways for genetic manipulation including knockout experiments and cellular lineage analysis in cartilaginous fishes.
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Affiliation(s)
- Chika Fujimori
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Chie Umatani
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Misaki Chimura
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
| | - Shigeho Ijiri
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
| | - Hisanori Bando
- Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Susumu Hyodo
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Shinji Kanda
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
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Coogan M, Alston V, Su B, Khalil K, Elaswad A, Khan M, Johnson A, Xing D, Li S, Wang J, Simora RMC, Lu C, Page-McCaw P, Chen W, Michel M, Wang W, Hettiarachchi D, Hasin T, Butts IAE, Cone RD, Dunham RA. Improved Growth and High Inheritance of Melanocortin-4 Receptor (mc4r) Mutation in CRISPR/Cas-9 Gene-Edited Channel Catfish, Ictalurus punctatus. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:843-855. [PMID: 35943638 DOI: 10.1007/s10126-022-10146-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Effects of CRISPR/Cas9 knockout of the melanocortin-4 receptor (mc4r) gene in channel catfish, Ictalurus punctatus, were investigated. Three sgRNAs targeting the channel catfish mc4r gene in conjunction with Cas9 protein were microinjected in embryos and mutation rate, inheritance, and growth were studied. Efficient mutagenesis was achieved as demonstrated by PCR, Surveyor® assay, and DNA sequencing. An overall mutation rate of 33% and 33% homozygosity/bi-allelism was achieved in 2017. Approximately 71% of progeny inherited the mutation. Growth was generally higher in MC4R mutants than controls (CNTRL) at all life stages and in both pond and tank environments. There was a positive relationship between zygosity and growth, with F1 homozygous/bi-allelic mutants reaching market size 30% faster than F1 heterozygotes in earthen ponds (p = 0.022). At the stocker stage (~ 50 g), MC4R × MC4R mutants generated in 2019 were 40% larger than the mean of combined CNTRL × CNTRL families (p = 0.005) and 54% larger than F1 MC4R × CNTRL mutants (p = 0.001) indicating mutation may be recessive. With a high mutation rate and inheritance of the mutation as well as improved growth, the use of gene-edited MC4R channel catfish appears to be beneficial for application on commercial farms.
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Affiliation(s)
- Michael Coogan
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
| | - Veronica Alston
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Baofeng Su
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Karim Khalil
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Ahmed Elaswad
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Mohd Khan
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Fisheries Biology and Genetics, Agricultural University, Mymensingh, 2202, Bangladesh
| | - Andrew Johnson
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - De Xing
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Shangjia Li
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Jinhai Wang
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Rhoda M C Simora
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- College of Fisheries and Ocean Sciences, University of the Philippines Visayas, 5023, Miagao, Iloilo, Philippines
| | - Cuiyu Lu
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Patrick Page-McCaw
- Department of Molecular and Integrative Physiology, Vanderbilt University, Nashville, TN, 37203-5721, USA
| | - Wenbiao Chen
- Department of Molecular and Integrative Physiology, Vanderbilt University, Nashville, TN, 37203-5721, USA
| | - Max Michel
- Department of Molecular and Integrative Physiology, Vanderbilt University, Nashville, TN, 37203-5721, USA
| | - Wenwen Wang
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | | | - Tasnuba Hasin
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Ian A E Butts
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Roger D Cone
- Department of Molecular and Integrative Physiology, Vanderbilt University, Nashville, TN, 37203-5721, USA
| | - Rex A Dunham
- Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
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Wnt/β-Catenin Signaling Pathway Is Strongly Implicated in Cadmium-Induced Developmental Neurotoxicity and Neuroinflammation: Clues from Zebrafish Neurobehavior and In Vivo Neuroimaging. Int J Mol Sci 2022; 23:ijms231911434. [PMID: 36232737 PMCID: PMC9570071 DOI: 10.3390/ijms231911434] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/17/2022] Open
Abstract
Cadmium (Cd) is a toxic heavy metal and worldwide environmental pollutant which seriously threatens human health and ecosystems. It is easy to be adsorbed and deposited in organisms, exerting adverse effects on various organs including the brain. In a very recent study, making full use of a zebrafish model in both high-throughput behavioral tracking and live neuroimaging, we explored the potential developmental neurotoxicity of Cd2+ at environmentally relevant levels and identified multiple connections between Cd2+ exposure and neurodevelopmental disorders as well as microglia-mediated neuroinflammation, whereas the underlying neurotoxic mechanisms remained unclear. The canonical Wnt/β-catenin signaling pathway plays crucial roles in many biological processes including neurodevelopment, cell survival, and cell cycle regulation, as well as microglial activation, thereby potentially presenting one of the key targets of Cd2+ neurotoxicity. Therefore, in this follow-up study, we investigated the implication of the Wnt/β-catenin signaling pathway in Cd2+-induced developmental disorders and neuroinflammation and revealed that environmental Cd2+ exposure significantly affected the expression of key factors in the zebrafish Wnt/β-catenin signaling pathway. In addition, pharmacological intervention of this pathway via TWS119, which can increase the protein level of β-catenin and act as a classical activator of the Wnt signaling pathway, could significantly repress the Cd2+-induced cell cycle arrest and apoptosis, thereby attenuating the inhibitory effects of Cd2+ on the early development, behavior, and activity, as well as neurodevelopment of zebrafish larvae to a certain degree. Furthermore, activation and proliferation of microglia, as well as the altered expression profiles of genes associated with neuroimmune homeostasis triggered by Cd2+ exposure could also be significantly alleviated by the activation of the Wnt/β-catenin signaling pathway. Thus, this study provided novel insights into the cellular and molecular mechanisms of Cd2+ toxicity on the vertebrate central nervous system (CNS), which might be helpful in developing pharmacotherapies to mitigate the neurological disorders resulting from exposure to Cd2+ and many other environmental heavy metals.
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Chen X, Kan Y, Zhong Y, Jawad M, Wei W, Gu K, Gui L, Li M. Generation of a Normal Long-Term-Cultured Chinese Hook Snout Carp Spermatogonial Stem Cell Line Capable of Sperm Production In Vitro. BIOLOGY 2022; 11:biology11071069. [PMID: 36101449 PMCID: PMC9312933 DOI: 10.3390/biology11071069] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 11/20/2022]
Abstract
Simple Summary In vitro-induced differentiation of sperm cells is a key technology for genetic resource conservation. In the past ten years, Opsariichthys bidens has become a famous and excellent aquatic species in some areas in China. However, its genetic resources have reduced dramatically. To protect against the decline of O. bidens, a long-term-cultured spermatogonial stem cell line (ObSSC) of adult O. bidens was successfully established. The result of our study showed that ObSSC had a diploid karyotype and stable growth over more than 2 years, with SSC-typical gene expression patterns. Furthermore, our research demonstrates the potential and regulation mechanism of fish spermatogonial stem cell differentiation into different cells of three germ layers. Our findings will assist further research on the genetic resource conservation of germplasm in a commercially and ecologically valuable fish species. Abstract Opsariichthys bidens belongs to the family Cyprinidae and is a small freshwater economic fish widely distributed in China. In recent years, the natural resources of O. bidens have been drastically reduced due to overfishing and the destruction of the water environment. The in vitro culture and long-term preservation of germ stem cells are the key technologies to keep genetic resources from degeneration. However, except for the establishment of the first long-term cultured medaka spermatogonia cell line (SSC) capable of producing sperm in vitro in 2004, no other long-term cultured SSC line has been found in other fish species. In this study, we successfully established another long-term-cultured spermatogonial stem cell line from Opsariichthys bidens (ObSSC). After more than 2 years of culture, ObSSC had a diploid karyotype and stable growth, with the typical gene expression patterns of SSC. Under in vitro culture, ObSSC could be induced to differentiate into sperm and other different types of somatic cells. In vivo, ObSSC could differentiate into different cells of three germ layers upon being transplanted into zebrafish embryos. Our research helps to explore the potential and regulation mechanism of fish SSC differentiation and spermatogenesis in vitro, provides a new way for solving the problem of fish genetic resource degradation and lays a foundation for further research on fish germ cell transplantation.
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Affiliation(s)
- Xiao Chen
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; (X.C.); (Y.K.); (Y.Z.); (M.J.); (W.W.); (K.G.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Yuting Kan
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; (X.C.); (Y.K.); (Y.Z.); (M.J.); (W.W.); (K.G.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Ying Zhong
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; (X.C.); (Y.K.); (Y.Z.); (M.J.); (W.W.); (K.G.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- Key Laboratory of Microecological Resources and Utilization in Breeding Industry, Ministry of Agriculture and Rural Affairs, Guangzhou 511400, China
| | - Muhammad Jawad
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; (X.C.); (Y.K.); (Y.Z.); (M.J.); (W.W.); (K.G.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Wenbo Wei
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; (X.C.); (Y.K.); (Y.Z.); (M.J.); (W.W.); (K.G.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Kaiyan Gu
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; (X.C.); (Y.K.); (Y.Z.); (M.J.); (W.W.); (K.G.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Lang Gui
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; (X.C.); (Y.K.); (Y.Z.); (M.J.); (W.W.); (K.G.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- Correspondence: (L.G.); (M.L.)
| | - Mingyou Li
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; (X.C.); (Y.K.); (Y.Z.); (M.J.); (W.W.); (K.G.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- Correspondence: (L.G.); (M.L.)
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Abass NY, Simora RMC, Wang J, Li S, Xing D, Coogan M, Johnson A, Creamer D, Wang X, Dunham RA. Response of cecropin transgenesis to challenge with Edwardsiella ictaluri in channel catfish Ictalurus punctatus. FISH & SHELLFISH IMMUNOLOGY 2022; 126:311-317. [PMID: 35636698 DOI: 10.1016/j.fsi.2022.05.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 05/09/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Constructs bearing the cecropin B gene from the moth Hyalophora cecropia, driven by the cytomegalovirus (CMV) promoter, or the common carp beta-actin (β-actin) promoter were transferred to channel catfish, Ictalurus punctatus via electroporation. One F3 channel catfish family transgenic for cecropin transgene driven by the CMV promoter, and one F1 channel catfish family transgenic for cecropin transgene driven by the common carp β-actin promoter were produced. F3 and F1 individuals exhibited enhanced disease resistance when challenged in tanks with Edwardsiella ictaluri, the causative agent of enteric septicemia of catfish (ESC). Inheritance of the transgene by the F1 and F3 generation was 15% and 60%, respectively. Growth rates of the cecropin transgenic and non-transgenic full siblings (controls) channel catfish were not different (P > 0.05). All transgenic fish showed significant resistance to infection by ESC at day 3 and day 4 post exposure (P = 0.005). No correlation was detected between body weight and time to death for all genetic groups (P = 0.34). Results of our study confirmed that genetic enhancement of E. ictaluri resistance can be achieved by cecropin transgenesis in channel catfish. In addition to survival rate, improving survival time is essential because the extension of survival time gives a better chance to apply treatments to stop the bacterial infection.
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Affiliation(s)
- Nermeen Y Abass
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA; Department of Agricultural Botany, Faculty of Agriculture Saba-Basha, Alexandria University, Alexandria City, P.O. Box 21531, Egypt.
| | - Rhoda Mae C Simora
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA; College of Fisheries and Ocean Sciences, University of the Philippines Visayas, Miagao, Iloilo, 5023, Philippines
| | - Jinhai Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Shangjia Li
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - De Xing
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Michael Coogan
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Andrew Johnson
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - David Creamer
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Xu Wang
- Department of Pathobiology, Auburn University, Auburn, AL, 36849, USA; HudsonAlpha Institute for Biotechnology, Huntsville, AL, 35806, USA
| | - Rex A Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
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8
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Xing D, Su B, Li S, Bangs M, Creamer D, Coogan M, Wang J, Simora R, Ma X, Hettiarachchi D, Alston V, Wang W, Johnson A, Lu C, Hasin T, Qin Z, Dunham R. CRISPR/Cas9-Mediated Transgenesis of the Masu Salmon (Oncorhynchus masou) elovl2 Gene Improves n-3 Fatty Acid Content in Channel Catfish (Ictalurus punctatus). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:513-523. [PMID: 35416602 DOI: 10.1007/s10126-022-10110-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
Omega-3 polyunsaturated fatty acids (n-3 PUFAs), particularly eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3), play a very important role in human health. Channel catfish (Ictalurus punctatus) is one of the leading freshwater aquaculture species in the USA, but has low levels of EPA and DHA compared to some fish such as salmon. To improve EPA and DHA content, a modification of the n-3 PUFA biosynthetic pathway was achieved through the insertion of an elovl2 transgene isolated from masu salmon (Oncorhynchus masou) driven by a carp β-actin promoter using a two-hit by gRNA and two oligos with a targeting plasmid (2H2OP) CRISPR/Cas9 approach. Integration rate of the transgene was high (37.5%) and detected in twelve different tissues of P1 transgenic fish with tissue-specific gene expression. Liver and muscle had relative high gene expression (13.4- and 9.2-fold change, respectively). Fatty acid analysis showed DHA content in the muscle from transgenic fish was 1.62-fold higher than in non-transgenic fish (P < 0.05). Additionally, total n-3 PUFAs and omega-6 polyunsaturated fatty acids (n-6 PUFAs) increased to 1.41-fold and 1.50-fold, respectively, suggesting the β-actin-elovl2 transgene improved biosynthesis of PUFAs in channel catfish as a whole. The n-9 fatty acid level decreased in the transgenic fish compared to the control. Morphometric analysis showed that there were significant differences between injected fish with sgRNAs (including positive and negative fish) and sham-injected controls (P < 0.001). Potential off-target effects are likely the major factor responsible for morphological deformities. Optimization of sgRNA design to maximize activity and reduce off-target effects of CRISPR/Cas9 should be examined in future transgenic research, but this research shows a promising first step in the improvement of n-3 PUFAs in channel catfish.
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Affiliation(s)
- De Xing
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Baofeng Su
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Shangjia Li
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Max Bangs
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Biological Science, Florida State University, Tallahassee, FL, 32304, USA
| | - David Creamer
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Michael Coogan
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Jinhai Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Rhoda Simora
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- College of Fisheries and Ocean Sciences, University of the Philippines Visayas, 5023, Miagao, Iloilo, Philippines
| | - Xiaoli Ma
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Darshika Hettiarachchi
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Veronica Alston
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Wenwen Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Andrew Johnson
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Cuiyu Lu
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Tasnuba Hasin
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Zhenkui Qin
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
| | - Rex Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
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9
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Xu Y, Zhao H, Wang Z, Gao H, Liu J, Li K, Song Z, Yuan C, Lan X, Pan C, Zhang S. Developmental exposure to environmental levels of cadmium induces neurotoxicity and activates microglia in zebrafish larvae: From the perspectives of neurobehavior and neuroimaging. CHEMOSPHERE 2022; 291:132802. [PMID: 34752834 DOI: 10.1016/j.chemosphere.2021.132802] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/15/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Cadmium (Cd) is a worldwide environmental pollutant that postures serious threats to humans and ecosystems. Over the years, its adverse effects on the central nervous system (CNS) have been concerned, whereas the underlying cellular/molecular mechanisms remain unclear. In this study, taking advantages of zebrafish model in high-throughput imaging and behavioral tests, we have explored the potential developmental neurotoxicity of Cd at environmentally relevant levels, from the perspectives of neurobehavior and neuroimaging. Briefly, Cd2+ exposure resulted in a general impairment of zebrafish early development. Zebrafish neurobehavioral patterns including locomotion and reactivity to environmental signals were significantly perturbed upon Cd2+ exposure. Importantly, a combination of in vivo two-photon neuroimaging, flow cytometry and gene expression analyses revealed notable neurodevelopmental disorders as well as neuroimmune responses induced by Cd2+ exposure. Both cell-cycle arrest and apoptosis contributed jointly to a significant decrease of neuronal density in zebrafish larvae exposed to Cd2+. The dramatic morphological alterations of microglia from multi-branched to amoeboid, the microgliosis, as well as the modulation of gene expression profiles demonstrated a strong activation of microglia and neuroinflammation triggered by environmental levels of Cd2+. Together, our study points to the developmental toxicity of Cd in inducing CNS impairment and neuroinflammation thereby providing visualized etiological evidence of this heavy metal induced neurodevelopmental disorders. It's tempting to speculate that this research model might represent a promising tool not only for understanding the molecular mechanisms of Cd-induced neurotoxicity, but also for developing pharmacotherapies to mitigate the neurological damage resulting from exposure to Cd, and other neurotoxicants.
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Affiliation(s)
- Yanyi Xu
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Haiyu Zhao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China.
| | - Zuo Wang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Hao Gao
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Junru Liu
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Kemin Li
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Zan Song
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Cong Yuan
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China
| | - Xianyong Lan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, 712100, Shaanxi Province, China
| | - Chuanying Pan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, 712100, Shaanxi Province, China
| | - Shengxiang Zhang
- School of Life Sciences, Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu Province, China.
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10
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Comparison of growth performance among channel-blue hybrid catfish, ccGH transgenic channel catfish, and channel catfish in a tank culture system. Sci Rep 2022; 12:740. [PMID: 35031641 PMCID: PMC8760261 DOI: 10.1038/s41598-021-04719-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 12/13/2021] [Indexed: 11/27/2022] Open
Abstract
Fish is an essential source of high-quality protein for people worldwide. The present study was designed to compare the growth performance among the channel-blue hybrid catfish, channel catfish transgenic for the channel catfish growth hormone (ccGH) cDNA driven by the antifreeze protein promoter from an ocean pout Zoarces americanus (opAFP-ccGH), and non-transgenic channel catfish control. Mean body weight of channel-blue hybrid catfish was 15.80 and 24.06% larger than non-transgenic channel catfish control at 4 and 18 months of age, respectively. However, transgenic opAFP-ccGH channel catfish were 5.52 and 43.41% larger than channel-blue hybrid catfish and 22.19 and 77.91% larger than their controls at 4 and 18 months of age, respectively. Significant differences in mean body weight between the sexes within all genetic types were found. Males were larger than females (P < 0.001). However, mean body weight of non-transgenic males was not larger than transgenic opAFP-ccGH females or male and female hybrid catfish. Condition factor of transgenic opAFP-ccGH channel catfish was higher (P < 0.05) than that of full-sibling, non-transgenic channel catfish and hybrid catfish. The mean percentage body weight gain of GH transgenic channel catfish was 559%, the channel-blue hybrid catfish was 384.9% and their non-transgenic controls channel catfish was 352.6%.
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11
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Goswami M, Yashwanth BS, Trudeau V, Lakra WS. Role and relevance of fish cell lines in advanced in vitro research. Mol Biol Rep 2022; 49:2393-2411. [PMID: 35013860 PMCID: PMC8747882 DOI: 10.1007/s11033-021-06997-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 11/19/2021] [Indexed: 12/21/2022]
Abstract
Introduction Cell line derived from fish has been established as a promising tool for studying many key issues of aquaculture covering fish growth, disease, reproduction, genetics, and biotechnology. In addition, fish cell lines are very useful in vitro models for toxicological, pathological, and immunological studies. The easier maintenance of fish cell lines in flexible temperature regimes and hypoxic conditions make them preferable in vitro tools over mammalian cell lines. Great excitement has been observed in establishing and characterizing new fish cell lines representing diverse fish species and tissue types. The well-characterized and authenticated cell lines are of utmost essential as these represent cellular functions very similar to in vivo state of an organism otherwise it would affect the reproducibility of scientific research. Conclusion The fish cell lines have exhibited encouraging results in several key aspects of in vitro research in aquaculture including virology, nutrition and metabolism, production of vaccines, and transgenic fish production. The review paper reports the cell lines developed from fish, their characterization, and biobanking along with their potential applications and challenges in in vitro research.
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Affiliation(s)
- M Goswami
- ICAR - Central Institute of Fisheries Education, Mumbai, 400061, India.
| | - B S Yashwanth
- ICAR - Central Institute of Fisheries Education, Mumbai, 400061, India
| | - Vance Trudeau
- Centre for Advanced Research in Environmental Genomics, Department of Biology, University of Ottawa, Ottawa, Canada
| | - W S Lakra
- NABARD Chair Unit, ICAR-Central Marine Fisheries Research Institute, Mumbai Research Centre, Versova, Mumbai, India
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12
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Binsila B, Selvaraju S, Ranjithkumaran R, Archana SS, Krishnappa B, Ghosh SK, Kumar H, Subbarao RB, Arangasamy A, Bhatta R. Current scenario and challenges ahead in application of spermatogonial stem cell technology in livestock. J Assist Reprod Genet 2021; 38:3155-3173. [PMID: 34661801 DOI: 10.1007/s10815-021-02334-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 09/27/2021] [Indexed: 11/28/2022] Open
Abstract
PURPOSE Spermatogonial stem cells (SSCs) are the source for the mature male gamete. SSC technology in humans is mainly focusing on preserving fertility in cancer patients. Whereas in livestock, it is used for mining the factors associated with male fertility. The review discusses the present status of SSC biology, methodologies developed for in vitro culture, and challenges ahead in establishing SSC technology for the propagation of superior germplasm with special reference to livestock. METHOD Published literatures from PubMed and Google Scholar on topics of SSCs isolation, purification, characterization, short and long-term culture of SSCs, stemness maintenance, epigenetic modifications of SSCs, growth factors, and SSC cryopreservation and transplantation were used for the study. RESULT The fine-tuning of SSC isolation and culture conditions with special reference to feeder cells, growth factors, and additives need to be refined for livestock. An insight into the molecular mechanisms involved in maintaining stemness and proliferation of SSCs could facilitate the dissemination of superior germplasm through transplantation and transgenesis. The epigenetic influence on the composition and expression of the biomolecules during in vitro differentiation of cultured cells is essential for sustaining fertility. The development of surrogate males through gene-editing will be historic achievement for the foothold of the SSCs technology. CONCLUSION Detailed studies on the species-specific factors regulating the stemness and differentiation of the SSCs are required for the development of a long-term culture system and in vitro spermatogenesis in livestock. Epigenetic changes in the SSCs during in vitro culture have to be elucidated for the successful application of SSCs for improving the productivity of the animals.
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Affiliation(s)
- Balakrishnan Binsila
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India.
| | - Sellappan Selvaraju
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India
| | - Rajan Ranjithkumaran
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India
| | - Santhanahalli Siddalingappa Archana
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India
| | - Balaganur Krishnappa
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India
| | - Subrata Kumar Ghosh
- Animal Reproduction Division, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Izatnagar, 243 122, India
| | - Harendra Kumar
- Animal Reproduction Division, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Izatnagar, 243 122, India
| | - Raghavendra B Subbarao
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India
| | - Arunachalam Arangasamy
- Reproductive Physiology Laboratory, Animal Physiology Division, Indian Council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India
| | - Raghavendra Bhatta
- Indian council of Agricultural Research-National Institute of Animal Nutrition and Physiology, Bengaluru, 560 030, India
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13
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Huang Y, Bugg W, Bangs M, Qin G, Drescher D, Backenstose N, Weng CC, Zhang Y, Khalil K, Dong S, Elaswad A, Ye Z, Lu C, Vo K, Simora RM, Ma X, Taylor Z, Yang Y, Zhou T, Guo J, Salze G, Qin Z, Wang Y, Dunham RA. Direct and pleiotropic effects of the Masou Salmon Delta-5 Desaturase transgene in F1 channel catfish (Ictalurus punctatus). Transgenic Res 2021; 30:185-200. [PMID: 33792795 DOI: 10.1007/s11248-021-00242-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 03/11/2021] [Indexed: 11/27/2022]
Abstract
Channel catfish (Ictalurus punctatus) is the primary culture species in the US along with its hybrid made with male blue catfish, I. furcatus. In an effort to improve the nutritional value of channel catfish, the masou salmon Δ5-desaturase like gene (D5D) driven by the common carp beta-actin promoter (βactin) was inserted into channel catfish. The objectives of this study were to determine the effectiveness of βactin-D5D for improving n-3 fatty acid production in F1 transgenic channel catfish, as well as examine pleiotropic effects on growth, proximate analysis, disease resistance, and other performance traits. Transgenic F1 channel catfish showed a 33% increase in the relative proportion of n-3 fatty acids coupled with a 15% decrease in n-6 fatty acids and a 17% decrease in n-9 fatty acids when compared to non-transgenic full-siblings (P < 0.01, P < 0.01, P < 0.01). However, while the relative proportion of n-3 fatty acids was achieved, the total amount of fatty acids in the transgenic fish decreased resulting in a reduction of all fatty acids. Insertion of the βactin-D5D transgene into channel catfish also had large effects on the body composition, and growth of channel catfish. Transgenic channel catfish grew faster, were more disease resistant, had higher protein and moisture percentage, but lower fat percentage than full-sib controls. There were sex effects as performance changes were more dramatic and significant in males. The βactin-D5D transgenic channel catfish were also more uniform in their fatty acid composition, growth and other traits.
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Affiliation(s)
- Yingqi Huang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - William Bugg
- Department of Biological Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Max Bangs
- Department of Biological Sciences, Florida State University, Tallahassee, FL, 32304, USA
| | - Guyu Qin
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - David Drescher
- Muckleshoot Indian Tribe Department of Fisheries, 39015-A 172nd Ave SE, Auburn, WA, 98092, USA
| | - Nathan Backenstose
- Department of Biological Sciences, University At Buffalo, Buffalo, NY, 14260, USA
| | - Chia Chen Weng
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | - Yiliu Zhang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Karim Khalil
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Sheng Dong
- Department of Civil and Environmental Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Ahmed Elaswad
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Zhi Ye
- Department of Biochemistry, University of Washington, Seattle, WA, 98195-7350, USA
| | - Cuiyu Lu
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | - Khoi Vo
- Department of Aquacultures and Technology, Can Tho Technical Economic College, Can Tho City, Vietnam
| | - Rhoda Mae Simora
- College of Fisheries and Ocean Sciences, University of the Philippines Visayas, Miagao, 5023, Iloilo, Philippines
| | - Xiaoli Ma
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | - Zachary Taylor
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | - Yujia Yang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | - Tao Zhou
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | - Jingping Guo
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA
| | | | - Zhenkui Qin
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Yi Wang
- Biosystems Engineering Department, Auburn University, Auburn, AL, 36849, USA
| | - Rex A Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, 203 Swingle Hall, Auburn, AL, 36849, USA.
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14
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Simora RMC, Xing D, Bangs MR, Wang W, Ma X, Su B, Khan MGQ, Qin Z, Lu C, Alston V, Hettiarachchi D, Johnson A, Li S, Coogan M, Gurbatow J, Terhune JS, Wang X, Dunham RA. CRISPR/Cas9-mediated knock-in of alligator cathelicidin gene in a non-coding region of channel catfish genome. Sci Rep 2020; 10:22271. [PMID: 33335280 PMCID: PMC7746764 DOI: 10.1038/s41598-020-79409-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 12/07/2020] [Indexed: 12/14/2022] Open
Abstract
CRISPR/Cas9-based gene knockout in animal cells, particularly in teleosts, has proven to be very efficient with regards to mutation rates, but the precise insertion of exogenous DNA or gene knock-in via the homology-directed repair (HDR) pathway has seldom been achieved outside of the model organisms. Here, we succeeded in integrating with high efficiency an exogenous alligator cathelicidin gene into a targeted non-coding region of channel catfish (Ictalurus punctatus) chromosome 1 using two different donor templates (synthesized linear dsDNA and cloned plasmid DNA constructs). We also tested two different promoters for driving the gene, zebrafish ubiquitin promoter and common carp β-actin promoter, harboring a 250-bp homologous region flanking both sides of the genomic target locus. Integration rates were found higher in dead fry than in live fingerlings, indicating either off-target effects or pleiotropic effects. Furthermore, low levels of mosaicism were detected in the tissues of P1 individuals harboring the transgene, and high transgene expression was observed in the blood of some P1 fish. This can be an indication of the localization of cathelicidin in neutrophils and macrophage granules as also observed in most antimicrobial peptides. This study marks the first use of CRISPR/Cas9 HDR for gene integration in channel catfish and may contribute to the generation of a more efficient system for precise gene integration in catfish and other aquaculture species, and the development of gene-edited, disease-resistant fish.
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Affiliation(s)
- Rhoda Mae C Simora
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
- College of Fisheries and Ocean Sciences, University of the Philippines Visayas, 5023, Miagao, Iloilo, Philippines.
| | - De Xing
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Max R Bangs
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Biological Science, Florida State University, Tallahassee, FL, 32304, USA
| | - Wenwen Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Xiaoli Ma
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Baofeng Su
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Mohd G Q Khan
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Zhenkui Qin
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Cuiyu Lu
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Veronica Alston
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Darshika Hettiarachchi
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Andrew Johnson
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Shangjia Li
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Michael Coogan
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Jeremy Gurbatow
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Jeffery S Terhune
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Xu Wang
- Department of Pathobiology, Auburn University, Auburn, AL, 36849, USA
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, 35806, USA
| | - Rex A Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
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15
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Xie X, Nóbrega R, Pšenička M. Spermatogonial Stem Cells in Fish: Characterization, Isolation, Enrichment, and Recent Advances of In Vitro Culture Systems. Biomolecules 2020; 10:E644. [PMID: 32331205 PMCID: PMC7226347 DOI: 10.3390/biom10040644] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022] Open
Abstract
Spermatogenesis is a continuous and dynamic developmental process, in which a single diploid spermatogonial stem cell (SSC) proliferates and differentiates to form a mature spermatozoon. Herein, we summarize the accumulated knowledge of SSCs and their distribution in the testes of teleosts. We also reviewed the primary endocrine and paracrine influence on spermatogonium self-renewal vs. differentiation in fish. To provide insight into techniques and research related to SSCs, we review available protocols and advances in enriching undifferentiated spermatogonia based on their unique physiochemical and biochemical properties, such as size, density, and differential expression of specific surface markers. We summarize in vitro germ cell culture conditions developed to maintain proliferation and survival of spermatogonia in selected fish species. In traditional culture systems, sera and feeder cells were considered to be essential for SSC self-renewal, in contrast to recently developed systems with well-defined media and growth factors to induce either SSC self-renewal or differentiation in long-term cultures. The establishment of a germ cell culture contributes to efficient SSC propagation in rare, endangered, or commercially cultured fish species for use in biotechnological manipulation, such as cryopreservation and transplantation. Finally, we discuss organ culture and three-dimensional models for in vitro investigation of fish spermatogenesis.
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Affiliation(s)
- Xuan Xie
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic;
| | - Rafael Nóbrega
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Biosciences, São Paulo State University, Botucatu, SP 18618-970, Brazil;
| | - Martin Pšenička
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic;
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Jin J, Zhao R, Chen C, Zhou J, Lu Z, Jin K, Zhang C, Wang M, Sun C, Wang Y, Zhang W, Li T, Zuo Q, Zhang Y, Chen G, Li B. The Lbc gene promotes differentiation of chicken embryo stem cell into spermatogonial stem cells via the regulation of transcriptional factor Hoxa5. J Cell Biochem 2019; 120:6952-6961. [PMID: 30656739 DOI: 10.1002/jcb.27760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 09/06/2018] [Indexed: 01/24/2023]
Abstract
Recently, the surface marker genes of spermatogonial stem cells (SSCs) were increasingly excavated and verified. However, few studies focused on the key genes involved in the regulation of SSCs differentiation. Our laboratory has screened the Lbc gene (GenBank accession number: XM_429585.3), which is specifically expressed on the SSCs. The aim of this study is to investigate the function of Lbc and its regulatory mechanism for SSCs. The indirect immunofluorescence assay (IFA) showed that Lbc was located in both nucleus and cytoplasm. Lbc was also overexpressed and knocked out both in vitro and in vivo to verify its function in SSCs, respectively. As a result, the overexpressed Lbc could promote the formation of spermatogonial stem cells like cells (SSCs-like), while the deficiency of Lbc blocked the formation of SSCs-like. We also identified the core region of Lbc promoter that located into the upstream of the transcription initiation site -247 to -2bp. Moreover, the activity of Lbc promoter could be increased by histone acetylation which is leading to the higher expression of Lbc. When we mutated the transcription factor HOXA5 and SOX10 that bound to the core region of Lbc promoter, HOXA5 could reduce the transcription activity of Lbc whereas the SOX10 was not. Currently, we found Lbc is a new specific marker of SSCs. This gene can be modified by histone acetylated and promote the formation of chicken SSCs via the transcription factor HOXA5. The present research will lay the foundation for further study on the regulatory mechanism of SSCs.
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Affiliation(s)
- Jing Jin
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Ruifeng Zhao
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Chen Chen
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Jing Zhou
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Zhenyu Lu
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Kai Jin
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Chen Zhang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Man Wang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Changhua Sun
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Yingjie Wang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Wenhui Zhang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Tingting Li
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Qisheng Zuo
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Yani Zhang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Guohong Chen
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Bichun Li
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
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17
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Khalil K, Elayat M, Khalifa E, Daghash S, Elaswad A, Miller M, Abdelrahman H, Ye Z, Odin R, Drescher D, Vo K, Gosh K, Bugg W, Robinson D, Dunham R. Generation of Myostatin Gene-Edited Channel Catfish (Ictalurus punctatus) via Zygote Injection of CRISPR/Cas9 System. Sci Rep 2017; 7:7301. [PMID: 28779173 PMCID: PMC5544710 DOI: 10.1038/s41598-017-07223-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 06/26/2017] [Indexed: 11/23/2022] Open
Abstract
The myostatin (MSTN) gene is important because of its role in regulation of skeletal muscle growth in all vertebrates. In this study, CRISPR/Cas9 was utilized to successfully target the channel catfish, Ictalurus punctatus, muscle suppressor gene MSTN. CRISPR/Cas9 induced high rates (88-100%) of mutagenesis in the target protein-encoding sites of MSTN. MSTN-edited fry had more muscle cells (p < 0.001) than controls, and the mean body weight of gene-edited fry increased by 29.7%. The nucleic acid alignment of the mutated sequences against the wild-type sequence revealed multiple insertions and deletions. These results demonstrate that CRISPR/Cas9 is a highly efficient tool for editing the channel catfish genome, and opens ways for facilitating channel catfish genetic enhancement and functional genomics. This approach may produce growth-enhanced channel catfish and increase productivity.
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Affiliation(s)
- Karim Khalil
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Medhat Elayat
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Elsayed Khalifa
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Samer Daghash
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Ahmed Elaswad
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt.
| | - Michael Miller
- Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Hisham Abdelrahman
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Zhi Ye
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Ramjie Odin
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - David Drescher
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Khoi Vo
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Kamal Gosh
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - William Bugg
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Dalton Robinson
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Rex Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
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18
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Tonelli FMP, Lacerda SMSN, Tonelli FCP, Costa GMJ, de França LR, Resende RR. Progress and biotechnological prospects in fish transgenesis. Biotechnol Adv 2017; 35:832-844. [PMID: 28602961 DOI: 10.1016/j.biotechadv.2017.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/04/2017] [Accepted: 06/05/2017] [Indexed: 12/14/2022]
Abstract
The history of transgenesis is marked by milestones such as the development of cellular transdifferentiation, recombinant DNA, genetic modification of target cells, and finally, the generation of simpler genetically modified organisms (e.g. bacteria and mice). The first transgenic fish was developed in 1984, and since then, continuing technological advancements to improve gene transfer have led to more rapid, accurate, and efficient generation of transgenic animals. Among the established methods are microinjection, electroporation, lipofection, viral vectors, and gene targeting. Here, we review the history of animal transgenesis, with an emphasis on fish, in conjunction with major developments in genetic engineering over the past few decades. Importantly, spermatogonial stem cell modification and transplantation are two common techniques capable of revolutionizing the generation of transgenic fish. Furthermore, we discuss recent progress and future biotechnological prospects of fish transgenesis, which has strong applications for the aquaculture industry. Indeed, some transgenic fish are already available in the current market, validating continued efforts to improve economically important species with biotechnological advancements.
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Affiliation(s)
- Fernanda M P Tonelli
- Laboratório de Sinalização Celular e Nanobiotecnologia, Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Instituto Nanocell, Divinópolis, MG, Brazil
| | - Samyra M S N Lacerda
- Laboratório de Biologia Celular, Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Flávia C P Tonelli
- Laboratório de Sinalização Celular e Nanobiotecnologia, Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Guilherme M J Costa
- Laboratório de Biologia Celular, Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiz Renato de França
- Laboratório de Biologia Celular, Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, AM, Brazil.
| | - Rodrigo R Resende
- Laboratório de Sinalização Celular e Nanobiotecnologia, Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Instituto Nanocell, Divinópolis, MG, Brazil.
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19
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Gene delivery to Nile tilapia cells for transgenesis and the role of PI3K-c2α in angiogenesis. Sci Rep 2017; 7:44317. [PMID: 28317860 PMCID: PMC5357942 DOI: 10.1038/srep44317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 02/06/2017] [Indexed: 01/08/2023] Open
Abstract
Microinjection is commonly performed to achieve fish transgenesis; however, due to difficulties associated with this technique, new strategies are being developed. Here we evaluate the potential of lentiviral particles to genetically modify Nile tilapia cells to achieve transgenesis using three different approaches: spermatogonial stem cell (SSC) genetic modification and transplantation (SC), in vivo transduction of gametes (GT), and fertilised egg transduction (ET). The SC protocol using larvae generates animals with sustained production of modified sperm (80% of animals with 77% maximum sperm fluorescence [MSF]), but is a time-consuming protocol (sexual maturity in Nile tilapia is achieved at 6 months of age). GT is a faster technique, but the modified gamete production is temporary (70% of animals with 52% MSF). ET is an easier way to obtain mosaic transgenic animals compared to microinjection of eggs, but non-site-directed integration in the fish genome can be a problem. In this study, PI3Kc2α gene disruption impaired development during the embryo stage and caused premature death. The manipulator should choose a technique based on the time available for transgenic obtainment and if this generation is required to be continuous or not.
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20
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Qin Z, Li Y, Su B, Cheng Q, Ye Z, Perera DA, Fobes M, Shang M, Dunham RA. Editing of the Luteinizing Hormone Gene to Sterilize Channel Catfish, Ictalurus punctatus, Using a Modified Zinc Finger Nuclease Technology with Electroporation. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2016; 18:255-263. [PMID: 26846523 DOI: 10.1007/s10126-016-9687-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 11/30/2015] [Indexed: 06/05/2023]
Abstract
Channel catfish (Ictalurus punctatus) is the most important freshwater aquaculture species in the USA. Genetically enhanced fish that are sterile could both profit the catfish industry and reduce potential environmental and ecological risks. As the first step to generate sterile channel catfish, three sets of zinc finger nuclease (ZFN) plasmids targeting the luteinizing hormone (LH) gene were designed and electroporated into one-cell embryos, different concentrations were introduced, and the Cel-I assay was conducted to detect mutations. Channel catfish carrying the mutated LH gene were sterile, as confirmed by DNA sequencing and mating experiments. The overall mutation rate was 19.7 % for 66 channel catfish, and the best treatment was ZFN set 1 at the concentration 25 μg/ml. To our knowledge, this is the first instance of gene editing of fish via plasmid introduction instead of mRNA microinjection. The introduction of the ZFN plasmids may have reduced mosaicism, as mutated individuals were gene edited in every tissue evaluated. Apparently, the plasmids were eventually degraded without integration, as they were not detectable in mutated individuals using PCR. Carp pituitary extract failed to induce spawning and restoration of fertility, indicating the need for developing other hormone therapies to achieve reversal of sterility upon demand. This is the first sterilization achieved using ZFN technology in an aquaculture species and the first successful gene editing of channel catfish. Our results will help understand the roles of the LH gene, purposeful sterilization of teleost fishes, and is a step towards control of domestic, hybrid, exotic, invasive, and transgenic fishes.
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Affiliation(s)
- Zhenkui Qin
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Yun Li
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Laboratory of Fisheries Physiology and Reproduction-Breeding, Fisheries College, Ocean University of China, Qingdao, 266003, China
| | - Baofeng Su
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Key Laboratory of Freshwater Aquatic Biotechnology and Genetic Breeding, Ministry of Agriculture, Heilongjiang Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, 150070, China
| | - Qi Cheng
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Zhi Ye
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Dayan A Perera
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Research and Development Corporation, Gus R. Douglass Land-Grant Institute, West Virginia State University, Institute, WV, 25112, USA
| | - Michael Fobes
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Mei Shang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
- Key Laboratory of Freshwater Aquatic Biotechnology and Genetic Breeding, Ministry of Agriculture, Heilongjiang Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, 150070, China
| | - Rex A Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
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21
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Gao G, Chen L, Huang C. Anti-cancer drug discovery: update and comparisons in yeast, Drosophila, and zebrafish. Curr Mol Pharmacol 2015; 7:44-51. [PMID: 24993385 DOI: 10.2174/1874467207666140702113629] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 06/28/2014] [Accepted: 07/02/2014] [Indexed: 12/17/2022]
Abstract
Discovery of novel cancer chemotherapeutics focuses on screening and identifying compounds that can target 'cancer-specific' biological processes while causing minimal toxicity to non-tumor cells. Alternatively, model organisms with highly conserved cancer-related cellular processes relative to human cells may offer new opportunities for anticancer drug discovery when combined with chemical screening. Some organisms used for chemotherapeutic discovery include yeast, Drosophila, and zebrafish which are similar in important ways relevant to cancer study but offer distinct advantages as well. Here, we describe these model attributes and the rationale for using them in cancer drug screening research.
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Affiliation(s)
| | | | - Chuanshu Huang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, 57 Old Forge Road, Tuxedo, NY 10987, USA.
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22
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Cheng Q, Su B, Qin Z, Weng CC, Yin F, Zhou Y, Fobes M, Perera DA, Shang M, Soller F, Shi Z, Davis A, Dunham RA. Interaction of diet and the masou salmon Δ5-desaturase transgene on Δ6-desaturase and stearoyl-CoA desaturase gene expression and N-3 fatty acid level in common carp (Cyprinus carpio). Transgenic Res 2014; 23:729-42. [PMID: 25011564 DOI: 10.1007/s11248-014-9812-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 06/30/2014] [Indexed: 12/31/2022]
Abstract
The masou salmon Δ5-desaturase-like gene (D5D) driven by the common carp β-actin promoter was transferred into common carp (Cyprinus carpio) that were fed two diets. For P1 transgenic fish fed a commercial diet, Δ6-desaturase-like gene (D6D) and stearoyl-CoA desaturase (SCD) mRNA levels in muscle were up-regulated (P < 0.05) 12.7- and 17.9-fold, respectively, and the D6D mRNA level in the gonad of transgenic fish was up-regulated 6.9-fold (P < 0.05) compared to that of non-transgenic fish. In contrast, D6D and SCD mRNA levels in transgenic fish were dramatically down-regulated (P < 0.05), 50.2- and 16.7-fold in brain, and 5.4- and 2.4-fold in liver, respectively, in comparison with those of non-transgenic fish. When fed a specially formulated diet, D6D and SCD mRNA levels in muscle of transgenic fish were up-regulated (P < 0.05) 41.5- and 8.9-fold, respectively, and in liver 6.0- and 3.3-fold, respectively, compared to those of non-transgenic fish. In contrast, D6D and SCD mRNA levels in the gonad of transgenic fish were down-regulated (P < 0.05) 5.5- and 12.4-fold, respectively, and D6D and SCD mRNA levels in the brain were down-regulated 14.9- and 1.4-fold (P < 0.05), respectively, compared to those of non-transgenic fish. The transgenic common carp fed the commercial diet had 1.07-fold EPA, 1.12-fold DPA, 1.07-fold DHA, and 1.07-fold higher observed total omega-3 fatty acid levels than non-transgenic common carp. Although these differences were not statistically different (P > 0.05), there were significantly (P < 0.10) higher omega-3 fatty acid levels when considering the differences for all of the individual omega-3 fatty acids. The genotype × diet interactions observed indicated that the potential of desaturase transgenesis cannot be realized without using a well-designed diet with the needed amount of substrates.
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Affiliation(s)
- Qi Cheng
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, 36839, USA
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23
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Weber T, Köster R. Genetic tools for multicolor imaging in zebrafish larvae. Methods 2013; 62:279-91. [DOI: 10.1016/j.ymeth.2013.07.028] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 07/08/2013] [Accepted: 07/16/2013] [Indexed: 02/06/2023] Open
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Wong TT, Collodi P. Dorsomorphin promotes survival and germline competence of zebrafish spermatogonial stem cells in culture. PLoS One 2013; 8:e71332. [PMID: 23936500 PMCID: PMC3731312 DOI: 10.1371/journal.pone.0071332] [Citation(s) in RCA: 17] [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: 04/21/2013] [Accepted: 06/27/2013] [Indexed: 12/31/2022] Open
Abstract
Zebrafish spermatogonial cell cultures were established from Tg(piwil1:neo);Tg(piwil1:DsRed) transgenic fish using a zebrafish ovarian feeder cell line (OFC3) that was engineered to express zebrafish Lif, Fgf2 and Gdnf. Primary cultures, initiated from testes, were treated with G418 to eliminate the somatic cells and select for the piwil1:neo expressing spermatogonia. Addition of dorsomorphin, a Bmp type I receptor inhibitor, prolonged spermatogonial stem cell (SSC) survival in culture and enhanced germline transmission of the SSCs following transplantation into recipient larvae. In contrast, dorsomorphin inhibited the growth and survival of zebrafish female germline stem cells (FGSCs) in culture. In the presence of dorsomorphin, the spermatogonia continued to express the germ-cell markers dazl, dnd, nanos3, vasa and piwil1 and the spermatogonial markers plzf and sox17 for at least six weeks in culture. Transplantation experiments revealed that 6 week-old spermatogonial cell cultures maintained in the presence of dorsomorphin were able to successfully colonize the gonad in 18% of recipient larvae and produce functional gametes in the resulting adult chimeric fish. Germline transmission was not successful when the spermatogonia were cultured 6 weeks in the absence of dorsomorphin before transplantation. The results indicate that Bmp signaling is detrimental to SSCs but required for the survival of zebrafish FGSCs in culture. Manipulation of Bmp signaling could provide a strategy to optimize culture conditions of germline stem cells from other species.
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Affiliation(s)
- Ten-Tsao Wong
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA.
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25
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Production of zebrafish offspring from cultured female germline stem cells. PLoS One 2013; 8:e62660. [PMID: 23671620 PMCID: PMC3643964 DOI: 10.1371/journal.pone.0062660] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 03/23/2013] [Indexed: 12/21/2022] Open
Abstract
Zebrafish female germline stem cell (FGSC) cultures were generated from a transgenic line of fish that expresses Neo and DsRed under the control of the germ cell specific promoter, ziwi [Tg(ziwi:neo);Tg(ziwi:DsRed)]. Homogeneous FGSC cultures were established by G418 selection and continued to express ziwi for more than 6 weeks along with the germ cell markers nanos3, dnd, dazl and vasa. A key component of the cell culture system was the use of a feeder cell line that was initiated from ovaries of a transgenic line of fish [Tg(gsdf:neo)] that expresses Neo controlled by the zebrafish gonadal soma derived factor (gsdf) promoter. The feeder cell line was selected in G418 and engineered to express zebrafish leukemia inhibitory factor (Lif), basic fibroblast growth factor (Fgf2) and glial-cell-line derived neurotrophic factor (Gdnf). These factors were shown to significantly enhance FGSC growth, survival and germline competency in culture. Results from cell transplantation experiments revealed that the cultured FGSCs were able to successfully colonize the gonad of sterile recipient fish and generate functional gametes. Up to 20% of surviving recipient fish that were injected with the cultured FGSCs were fertile and generated multiple batches of normal offspring for at least 6 months. The FGSC cultures will provide an in vitro system for studies of zebrafish germ cell growth and differentiation and their high frequency of germline transmission following transplantation could form the basis of a stem cell-mediated strategy for gene transfer and manipulation of the zebrafish genome.
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26
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Avci P, Sadasivam M, Gupta A, De Melo WC, Huang YY, Yin R, Chandran R, Kumar R, Otufowora A, Nyame T, Hamblin MR. Animal models of skin disease for drug discovery. Expert Opin Drug Discov 2013; 8:331-55. [PMID: 23293893 DOI: 10.1517/17460441.2013.761202] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Discovery of novel drugs, treatments, and testing of consumer products in the field of dermatology is a multi-billion dollar business. Due to the distressing nature of many dermatological diseases, and the enormous consumer demand for products to reverse the effects of skin photodamage, aging, and hair loss, this is a very active field. AREAS COVERED In this paper, we will cover the use of animal models that have been reported to recapitulate to a greater or lesser extent the features of human dermatological disease. There has been a remarkable increase in the number and variety of transgenic mouse models in recent years, and the basic strategy for constructing them is outlined. EXPERT OPINION Inflammatory and autoimmune skin diseases are all represented by a range of mouse models both transgenic and normal. Skin cancer is mainly studied in mice and fish. Wound healing is studied in a wider range of animal species, and skin infections such as acne and leprosy also have been studied in animal models. Moving to the more consumer-oriented area of dermatology, there are models for studying the harmful effect of sunlight on the skin, and testing of sunscreens, and several different animal models of hair loss or alopecia.
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Affiliation(s)
- Pinar Avci
- Harvard Medical School, Massachusetts General Hospital, Wellman Center for Photomedicine, Department of Dermatology, Boston MA, USA
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Kawasaki T, Saito K, Sakai C, Shinya M, Sakai N. Production of zebrafish offspring from cultured spermatogonial stem cells. Genes Cells 2012; 17:316-25. [PMID: 22390480 DOI: 10.1111/j.1365-2443.2012.01589.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Germ-line stem cells have the potential to be a very powerful tool for modifying the genetic information of individual animals. As a first step to use spermatogonial stem cells (SSCs) to enable genetic modification, we here describe effective long-term culture conditions for propagating zebrafish SSCs and for the production of offspring from these cultured SSCs after their differentiation into sperm in transplanted testicular cell aggregates. Dissociated testicular cells were cultured in specific medium with some modified supplements, including several mammalian growth factors. The spermatogonia actively proliferated and retained the expression of exogenous green fluorescent protein under the control of vas and sox17 promoters and also of promyelocytic leukemia zinc finger (Plzf), a marker of undifferentiated spermatogonia, after 1 month in culture. This is a longer period than the entire natural spermatogenic cycle (from SSCs to sperm). The use of subcutaneously grafted aggregates of these cultured spermatogonia and freshly dissociated testicular cells showed that these SSCs could undergo self-renewal and differentiation into sperm. Artificial insemination of these grafted aggregates successfully produced offspring. This culture method will facilitate the identification of new factors for the maintenance of SSCs and enable the future enrichment of genetically modified SSCs that will produce offspring in zebrafish.
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Affiliation(s)
- Toshihiro Kawasaki
- Genetic Strains Research Centre, National Institute of Genetics, Mishima 411-8540, Japan
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Panda RP, Barman HK, Mohapatra C. Isolation of enriched carp spermatogonial stem cells from Labeo rohita testis for in vitro propagation. Theriogenology 2011; 76:241-51. [PMID: 21496900 DOI: 10.1016/j.theriogenology.2011.01.031] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 01/18/2011] [Accepted: 01/29/2011] [Indexed: 01/25/2023]
Abstract
The in vitro culture system for spermatogonial stem cells (SSCs) is a powerful tool for exploring molecular mechanisms of male gametogenesis and gene manipulation. Very little information is available for fish SSC biology. Our aim was to isolate highly pure SSCs from the testis of commercially important farmed carp, Labeo rohita. The minced testis of L. rohita was dissociated with collagenase. Dissociated cells purified by two-step Ficoll gradient centrifugation followed by magnetic activated cell sorting (MACS) using Thy1.2 (CD90.2) antibody dramatically heightened recovery rate for spermatogonial cells. The purified cells were cultured in vitro conditions for more than two months in L-15 media containing 10% fetal bovine serum (FBS), 1% carp serum, and other nutrients. The proliferative cells were dividing as validated by 5-bromo-2'-deoxyuridine (BrdU) incorporation assay and formed colonies/clumps with the typical characteristics of SSCs A majority of enriched cell population represented a Vasa(+), Pou5f1/pou5f1(+), Ssea-1(+), Tra-1-81(+), plzf(+), Gfrα1/gfrα1(-), and c-Kit/c-kit(-) as detected by immunocytochemical and/or quantitative real-time polymerase chain reaction (RT-PCR) analyses. Thus, Thy1(+) SSCs were enriched with greater efficiency from the mixed population of testicular cells of L. rohita. A population of enriched spermatogonial cells could be cultured in an undifferentiated state. The isolated SSCs could provide avenue for undertaking research on basic and applied reproductive biology.
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Affiliation(s)
- R P Panda
- Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar, Odisha, India
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Overexpression a novel zebra fish spermatogenesis-associated gene 17 (SPATA17) induces apoptosis in GC-1 cells. Mol Biol Rep 2010; 38:3945-52. [DOI: 10.1007/s11033-010-0511-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Accepted: 11/13/2010] [Indexed: 10/18/2022]
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30
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Mohapatra C, Barman HK, Panda RP, Kumar S, Das V, Mohanta R, Mohapatra SD, Jayasankar P. Cloning of cDNA and prediction of peptide structure of Plzf expressed in the spermatogonial cells of Labeo rohita. Mar Genomics 2010; 3:157-63. [PMID: 21798210 DOI: 10.1016/j.margen.2010.09.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 08/31/2010] [Accepted: 09/03/2010] [Indexed: 10/19/2022]
Abstract
The promyelocytic leukemia zinc finger (Plzf) gene containing an evolutionary conserved BTB (bric-a-brac/tramtrack/broad complex) domain plays a key role in self-renewal of mammalian spermatogonial stem cells (SSCs) via recruiting transcriptional co-repressors. Little is known about the function of Plzf in vertebrate, especially in fish species. To gain better understanding of its role in fishes, we have cloned Plzf from the testis of Labeo rohita (rohu), a commercially important freshwater carp. The full-length cDNA contains an open reading frame (ORF) of 2004bp translatable to 667 amino acids (aa) containing a conserved N-terminal BTB domain and C-terminal C(2)H(2)-zinc finger motifs. L. rohita Plzf, which is phylogenetically related to Danio rerio counterpart, abundantly expressed in spermatogonial stem cells (SSCs). A three-dimensional (3D) model of BTB domain of Plzf protein was constructed by homology modeling approach. Molecular docking on this 3D structure established a homo-dimer between two BTB domains creating a charged pocket containing conserved aa residues: L33, C34, D35 and R49. Thus, Plzf of SSC is structurally and possibly functionally conserved. The conserved aa residues in the cleft resulting from Plzf BTB self-association are likely to be the binding platform for interaction with recruited co-repressor peptides. The identified Plzf could be the first step towards exploring its role in rohu SSC behavior.
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Affiliation(s)
- Chinmayee Mohapatra
- Fish Genetics & Biotechnology Division, Central Institute of Freshwater Aquaculture (Indian Council of Agricultural Research), Kausalyaganga, Bhubaneswar 751002, Odisha, India
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Villarreal LP. The source of self: genetic parasites and the origin of adaptive immunity. Ann N Y Acad Sci 2009; 1178:194-232. [PMID: 19845639 DOI: 10.1111/j.1749-6632.2009.05020.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stable colonization of the host by viruses (genetic parasites) can alter the systems of host identity and provide immunity against related viruses. To attain the needed stability, some viruses of prokaryotes (P1 phage) use a strategy called an addiction module. The linked protective and destructive gene functions of an addiction module insures both virus persistence but will also destroy cells that interrupt this module and thereby prevent infection by competitors. Previously, I have generalized this concept to also include persistent and lytic states of virus infection, which can be considered as a virus addiction module. Such states often involve defective viruses. In this report, I examine the origin of the adaptive immune system from the perspective of a virus addiction module. The likely role of both endogenous and exogenous retroviruses, DNA viruses, and their defective elements is considered in the origin of all the basal components of adaptive immunity (T-cell receptor, RAG-mediated gene rearrangement, clonal lymphocyte proliferation, antigen surface presentation, apoptosis, and education of immune cells). It is concluded that colonization by viruses and their defectives provides a more coherent explanation for the origin of adaptive immunity.
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Affiliation(s)
- Luis P Villarreal
- Center for Virus Research, Department of Molecular Biology and Biochemistry, University of California, Irvine, California 92697, USA.
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Kawasaki T, Saito K, Mitsui K, Ikawa M, Yamashita M, Taniguchi Y, Takeda S, Mitani K, Sakai N. Introduction of a foreign gene into zebrafish and medaka cells using adenoviral vectors. Zebrafish 2009; 6:253-8. [PMID: 19715489 DOI: 10.1089/zeb.2009.0596] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Viral vectors represent a tractable system that can efficiently introduce an exogenous gene into different target cells and are thus a potentially powerful genetic manipulation tool. In our current study, we investigated the infection efficiency of mammalian virus vectors, adenoviruses (Ads), adeno-associated viruses, and lentiviruses to the Sertoli cell line and the newly established cell line from a single embryo in zebrafish. Among the viral vectors tested, Ads showed the highest infection efficiency of 10(7)-10(8) green fluorescent protein-transducing units (gtu)/mL in zebrafish cells. In addition, the adenoviral vector was also infected at 10(5) gtu/mL in the medaka testicular somatic cell line that was established from the testes of p53-deficient mutant. Further, we found that Ads could successfully infect cultured male zebrafish germ cells. Our results thus indicate that the adenoviral vector could be used as a chromosomally nonintegrating vector system in zebrafish.
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Affiliation(s)
- Toshihiro Kawasaki
- Genetic Strains Research Center, National Institute of Genetics, Yata, Mishima, Japan
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Modric T, Mergia A. The Use of Viral Vectors in Introducing Genes into Agricultural Animal Species. Anim Biotechnol 2009; 20:216-30. [DOI: 10.1080/10495390903196380] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Coward K, Kubota H, Parrington J. In vivoGene Transfer into Testis and Sperm: Developments and Future Application. ACTA ACUST UNITED AC 2009; 53:187-97. [PMID: 17852043 DOI: 10.1080/01485010701426455] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Despite significant advances in the treatment of infertility via assisted reproductive technology (ART), the underlying causes of idiopathic male infertility still remain unclear. Accumulating evidence suggests that disorders associated with testicular gene expression may play an important role in male infertility. To be able to fully study the molecular mechanisms underlying spermatogenesis and fertilization, it is necessary to manipulate gene expression in male germ cells. Since there is still no reliable method of recapitulating spermatogenesis culture, the development of alternative transgenic approaches is paramount in the study of gene function in testis and sperm. Established methods of creating transgenic animals rely heavily upon injection of DNA into the pronucleus or the injection of transfected embryonic stem cells into blastocysts to form chimeras. Despite the success of these two approaches for making transgenic and knockout animals, concerns remain over costs and the efficiency of transgene integration. Consequently, efforts are in hand to evaluate alternative methodologies. At present, there is much interest in developing approaches that utilize spermatozoa as vectors for gene transfer. These approaches, including testis mediated gene transfer (TMGT) and sperm mediated gene transfer (SMGT), have great potential as tools for infertility research and in the creation of transgenic animals. The aim of this short review is to briefly describe developments in this field and discuss how these gene transfer methods might be used effectively in future research and clinical arenas.
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Affiliation(s)
- Kevin Coward
- Department of Pharmacology, University of Oxford, Oxford, UK
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36
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Niu Y, Liang S. Progress in gene transfer by germ cells in mammals. J Genet Genomics 2009; 35:701-14. [PMID: 19103425 DOI: 10.1016/s1673-8527(08)60225-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2008] [Revised: 10/21/2008] [Accepted: 10/30/2008] [Indexed: 11/24/2022]
Abstract
Use of germ cells as vectors for transgenesis in mammals has been well developed and offers exciting prospects for experimental and applied biology, agricultural and medical sciences. Such approach is referred to as either male germ cell mediated gene transfer (MGCMGT) or female germ cell mediated gene transfer (FGCMGT) technique. Sperm-mediated gene transfer (SMGT), including its alternative method, testis-mediated gene transfer (TMGT), becomes an established and reliable method for transgenesis. They have been extensively used for producing transgenic animals. The newly developed approach of FGCMGT, ovary-mediated gene transfer (OMGT) is also a novel and useful tool for efficient transgenesis. This review highlights an overview of the recent progress in germ cell mediated gene transfer techniques, methods developed and mechanisms of nucleic acid uptake by germ cells.
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Affiliation(s)
- Yidong Niu
- Laboratory Animal Center, Peking University People's Hospital, Beijing 100044, China.
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Otani S, Iwai T, Nakahata S, Sakai C, Yamashita M. Artificial Fertilization by Intracytoplasmic Sperm Injection in a Teleost Fish, the Medaka (Oryzias latipes)1. Biol Reprod 2009; 80:175-83. [DOI: 10.1095/biolreprod.108.069880] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Deiters A, Yoder JA. Conditional transgene and gene targeting methodologies in zebrafish. Zebrafish 2008; 3:415-29. [PMID: 18377222 DOI: 10.1089/zeb.2006.3.415] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The zebrafish has become a powerful tool for dissecting vertebrate gene function during embryogenesis. Numerous molecular systems have been developed to examine gene function in zebrafish, including transgenics for creating lineage-tracer lines of zebrafish that express a fluorescent protein as a marker for specific populations of cells, and antisense strategies, primarily morpholinos, for knocking down gene function. The focus of this review is to summarize the pros and cons of the currently available systems for functional genomics in zebrafish, and to discuss the need for future methodologies.
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Affiliation(s)
- Alexander Deiters
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina, USA
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40
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Figueiredo MDA, Lanes CFC, Almeida DV, Marins LF. Improving the production of transgenic fish germlines: in vivo evaluation of mosaicism in zebrafish (Danio rerio) using a green fluorescent protein (GFP) and growth hormone cDNA transgene co-injection strategy. Genet Mol Biol 2007. [DOI: 10.1590/s1415-47572007000100008] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Miura C, Kuwahara R, Miura T. Transfer of spermatogenesis-related cDNAs into eel testis germ-somatic cell coculture pellets by electroporation: Methods for analysis of gene function. Mol Reprod Dev 2007; 74:420-7. [PMID: 17075822 DOI: 10.1002/mrd.20653] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Genes encoding spermatogenesis-related substance (eSRSs) show unique expression patterns during spermatogenesis. To analyze their function, we developed a new assay system using gene transfer techniques combined with coculture of the eel germ-somatic cells. First, we investigated the efficacy of in vitro electroporation transfer of gene into germ-somatic cell pellets using green fluorescent protein (GFP) gene. Second, in order to define the function of the eSRSs, we electrophoretically transferred eel spermatogonial stem cell renewal factor (eSRS34) and eel spermatogenesis-preventing substance (eSRS21) genes into germ-somatic cell pellets. Presence of the transferred cDNA was examined by reverse transcription-polymerase chain reaction (RT-PCR). Furthermore, proliferating cells were detected histologically, after labeling with BrdU. Transfer of the eSRS34 gene induced spermatogonial stem cell renewal in the pellets. Moreover, 11-ketotestosterone (11-KT) treatment stimulated the proliferation of spermatogonia, which resulted in the appearance of late type B spermatogonia in the pellets. The proliferation of spermatogonia by 11-KT stimulation was suppressed by transfer of the eSRS21 gene. These results indicate that the transferred eSRS34 and 21genes were functional in the pellets. Thus, an efficient in vitro gene transfer technique for coculture system of germ and somatic cell of Japanese eel was established.
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Affiliation(s)
- C Miura
- Laboratory of Fish Reproductive Physiology, Faculty of Agriculture, Ehime University, Matsuyama, Ehime, Japan
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42
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Sakai N. In vitro male germ cell cultures of zebrafish. Methods 2006; 39:239-45. [PMID: 16828310 DOI: 10.1016/j.ymeth.2005.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2005] [Accepted: 12/12/2005] [Indexed: 01/15/2023] Open
Abstract
Transgenic modification of sperm before fertilization has the advantages of a much shorter timeline for the production of transgenic animals. A culture system using primary cultures of zebrafish male germ cells, in which the differentiation of spermatogonia to functional sperm can occur in vitro, allows us to introduce foreign DNA into the cultured sperm and to produce transgenics from the sperm. This chapter describes methods for the co-culture of male germ cells and a Sertoli cell feeder layer and the introduction of foreign DNA with retroviruses. This male germ cell culture system should prove useful not only in producing genetically modified sperm, but also in analyzing the regulatory function of Sertoli cells for spermatogenesis in vertebrates.
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Affiliation(s)
- Noriyoshi Sakai
- Genetic Strains Research Center, National Institute of Genetics, Mishima 411-8540, Japan.
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Porada CD, Park PJ, Tellez J, Ozturk F, Glimp HA, Almeida-Porada G, Zanjani ED. Male germ-line cells are at risk following direct-injection retroviral-mediated gene transfer in utero. Mol Ther 2006; 12:754-62. [PMID: 16084775 DOI: 10.1016/j.ymthe.2005.05.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2005] [Revised: 05/04/2005] [Accepted: 05/28/2005] [Indexed: 10/25/2022] Open
Abstract
The recent observation of vector sequences in the semen of men undergoing clinical gene therapy for hemophilia has highlighted the need to evaluate the risk of inadvertent germ-line transduction in a clinically relevant animal model. In the present study, we used three different approaches to investigate whether the germ line is at risk of inadvertent alteration following in utero retroviral gene transfer in the clinically relevant, random-bred sheep model. First, we conducted breeding studies. All organs from the 10 resultant offspring were devoid of proviral DNA, suggesting that the germ line had not been altered. As a second approach, we performed PCR on gradient-enriched, forensically purified sperm cells from in utero-transduced rams. The purified sperm cells from 6 of 19 of these rams were PCR positive for provirus, providing compelling evidence that the germ line had been transduced. As a third approach, we performed immunohistochemistry on sections of the testis from in utero-transduced sheep. Numerous somatic cells and very low levels of germ cells within the male reproductive tissues were transduced. In conclusion, our analysis on over 3 x 10(9) sperm cells suggests that the direct-injection approach employed in these studies may result in the inadvertent transduction of very low numbers of male germ cells.
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Affiliation(s)
- Christopher D Porada
- Department of Animal Biotechnology, University of Nevada at Reno, 89557-0104, USA.
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Dahm R, Geisler R. Learning from small fry: the zebrafish as a genetic model organism for aquaculture fish species. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2006; 8:329-45. [PMID: 16670967 DOI: 10.1007/s10126-006-5139-0] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2005] [Accepted: 12/02/2005] [Indexed: 05/09/2023]
Abstract
In recent years, the zebrafish has become one of the most prominent vertebrate model organisms used to study the genetics underlying development, normal body function, and disease. The growing interest in zebrafish research was paralleled by an increase in tools and methods available to study zebrafish. While zebrafish research initially centered on mutagenesis screens (forward genetics), recent years saw the establishment of reverse genetic methods (morpholino knock-down, TILLING). In addition, increasingly sophisticated protocols for generating transgenic zebrafish have been developed and microarrays are now available to characterize gene expression on a near genome-wide scale. The identification of loci underlying specific traits is aided by genetic, physical, and radiation hybrid maps of the zebrafish genome and the zebrafish genome project. As genomic resources for aquacultural species are increasingly being generated, a meaningful interaction between zebrafish and aquacultural research now appears to be possible and beneficial for both sides. In particular, research on nutrition and growth, stress, and disease resistance in the zebrafish can be expected to produce results applicable to aquacultural fish, for example, by improving husbandry and formulated feeds. Forward and reverse genetics approaches in the zebrafish, together with the known conservation of synteny between the species, offer the potential to identify and verify candidate genes for quantitative trait loci (QTLs) to be used in marker-assisted breeding. Moreover, some technologies from the zebrafish field such as TILLING may be directly transferable to aquacultural research and production.
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Affiliation(s)
- Ralf Dahm
- Department of Genetics, Max-Planck-Institute for Developmental Biology, D-72076, Tübingen, Germany.
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Wadman SA, Clark KJ, Hackett PB. Fishing for answers with transposons. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2005; 7:135-41. [PMID: 15864468 DOI: 10.1007/s10126-004-0068-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2004] [Accepted: 07/07/2004] [Indexed: 05/02/2023]
Abstract
Transposons are one means that nature has used to introduce new genetic material into chromosomes of organisms from every kingdom. They have been extensively used in prokaryotic and lower eukaryotic systems, but until recently there was no transposon that had significant activity in vertebrates. The Sleeping Beauty (SB) transposon system was developed to direct the integration of precise DNA sequences into chromosomes. The SB system was derived from salmonid sequences that had been inactive for more than 10 million years. SB transposons have been used for two principle uses--as a vector for transgenesis and as a method for introducing various trap vectors into (gene-trap) or in the neighborhood of (enhancer-trap) genes to identify their functions. Results of these studies show that SB-mediated transgenesis is more efficient than that by injection of simple plasmids and that expression of transgenesis is stable and reliable following passage through the germline.
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Abstract
The zebrafish has become a widely used model organism because of its fecundity, its morphological and physiological similarity to mammals, the existence of many genomic tools and the ease with which large, phenotype-based screens can be performed. Because of these attributes, the zebrafish might also provide opportunities to accelerate the process of drug discovery. By combining the scale and throughput of in vitro screens with the physiological complexity of animal studies, the zebrafish promises to contribute to several aspects of the drug development process, including target identification, disease modelling, lead discovery and toxicology.
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Affiliation(s)
- Leonard I Zon
- Howard Hughes Medical Institute, Division of Hematology/Oncology, Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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Kanatsu-Shinohara M, Toyokuni S, Shinohara T. Transgenic mice produced by retroviral transduction of male germ line stem cells in vivo. Biol Reprod 2004; 71:1202-7. [PMID: 15189822 DOI: 10.1095/biolreprod.104.031294] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Spermatogonial stem cells are the only stem cells in the postnatal body that can transmit parental genetic information to the offspring, making them an attractive target cell population for animal transgenesis. Although transgenic mice and rats were recently produced by retrovirus transduction of these cells in vitro, with transplantation of the transduced cells into infertile recipients, the difficulty of restoring fertility and preparing recipients using spermatogonial transplantation limits practical application of the technique. In this article, we describe a novel approach for producing transgenic animals by transducing spermatogonial stem cells in vivo using a retrovirus vector. Microinjection of retrovirus into immature seminiferous tubules resulted in the direct transduction of spermatogonial stem cells in situ, and the animals produced transgenic offspring after mating with females. Transgenic mice were produced in C57BL/6, BALB/C, A, and C3H backgrounds, with an average efficiency of 2.8%. The transgene was transmitted stably and expressed in the next generation. The technique overcomes the drawback of the in vitro-transduction approach, and will be useful as a novel method for producing transgenic animals as well as providing a means for analyzing the self-renewal and differentiation processes of spermatogonial stem cells in vivo.
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Affiliation(s)
- Mito Kanatsu-Shinohara
- Horizontal Medical Research Organization, Graduate School of Medicine, Kyoto University Yoshida-Konoe, Kyoto, Japan.
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48
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Fish sperm made to order. Nat Rev Genet 2004. [DOI: 10.1038/nrg1302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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