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Deng H, Zheng S, Li Y, Mo X, Zhao J, Yin J, Shi C, Wang Q, Wang Y. Establishment and characterization of a kidney cell line from hybrid snakehead (male Channa argus × female Channa maculata) and its susceptibility to hybrid snakehead rhabdovirus (HSHRV). Comp Biochem Physiol B Biochem Mol Biol 2024; 273:110971. [PMID: 38621626 DOI: 10.1016/j.cbpb.2024.110971] [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: 12/20/2023] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/17/2024]
Abstract
Hybrid snakehead (male Channa argus × female Channa maculata) is an emerging fish breed with increasing production levels. However, infection with hybrid snakehead rhabdovirus (HSHRV) critically affects hybrid snakehead farming. In this study, a fish cell line called CAMK, derived from the kidneys of hybrid snakehead, was established and characterized. CAMK cells exhibited the maximum growth rate at 28 °C in Leibovitz's-15 medium supplemented with 10% fetal bovine serum(FBS). Karyotyping revealed diploid chromosomes in 54% of the cells at the 50th passage (2n = 66), and 16S rRNA sequencing validated that CAMK cells originated fromhybrid snakehead, and the detection of kidney-specific antibodies suggested that it originated from kidney. .The culture was free from mycoplasma contamination, and the green fluorescent protein gene was effectively transfected into CAMK cells, indicating their potential use for in vitro gene expression investigations. Furthermore, qRT-PCR and immunofluorescence analysis revealed that HSHRV could replicate in CAMK cells, indicating that the cells were susceptible to the virus. Transmission electron microscopy revealed that the viral particles had bullet-like morphology. The replication efficiency of HSHRV was 107.33 TCID50/mL. Altogether, we successfully established and characterized a kidney cell line susceptible to the virus. These findings provide a valuable reference for further genetic and virological studies.
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Affiliation(s)
- Huiling Deng
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380; College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai 201306, China.
| | - Shucheng Zheng
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380; Key Laboratory of Marine Pollution, Department of Infectious Diseases and Public Health, Jockey Club School of Animal Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong, China.
| | - Yingying Li
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Xubing Mo
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Jian Zhao
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Jiyuan Yin
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Cunbin Shi
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Qing Wang
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
| | - Yingying Wang
- Key Laboratory of Fishery Drug Development,Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China 510380.
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2
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Mithra S, Majeed SA, Aatif AM, Suryakodi S, Ahmed AN, Taju G, Wazith MJA, Kumar PR, Hameed ASS. Application of Novel Gill Cell Line from Lates calcarifer for Recognizing Metals Using Probes. Biol Trace Elem Res 2024:10.1007/s12011-024-04229-x. [PMID: 38780857 DOI: 10.1007/s12011-024-04229-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
Lates calcarifer (Bloch) is a potential candidate fish species for culture in marine and brackishwater. A continuous gill cell line was derived from L. calcarifer by the explant culture method and has been passaged for 132 times, in Leibovitz's L-15 medium containing 10% fetal bovine serum (FBS) at 28 °C. The cells showed a rate of recovery between 90 and 95% after being successfully cryopreserved at various passage levels and formed monolayer in 2-3 days without any morphological changes. Immunophenotypic analysis of the SBG cell line revealed that they are of epithelial origin. Polymerase chain reaction assay using mitochondrial 12S rRNA primer specific to L. calcarifer was used to confirm the authenticity of the established gill cell line origin from seabass. The transfection efficiency was evaluated in Seabass Gill (SBG) cell line using pEGFP-N1 and Lipofectamine™ 3000. Transfection efficiency was found to be between 13 and 16%. The cytotoxicity of three different metal detecting probes was evaluated by MTT and Alamar blue assays to determine safe concentration. The result revealed that SBG cell line can be applied for recognition of metals using probes. The current study established, for the first time, a gill-derived cell line (SBG) from Lates calcarifer and its application for the detection of intracellular indium, mercury, and lutetium ions by specific fluorescent probes.
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Affiliation(s)
- Sivaraj Mithra
- Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College (Affiliated to Thiruvalluvar University), Melvisharam, 632509, Tamil Nadu, India
| | - Seepoo Abdul Majeed
- Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College (Affiliated to Thiruvalluvar University), Melvisharam, 632509, Tamil Nadu, India.
| | - Arni Mujthaba Aatif
- PG & Research Department of Chemistry, C. Abdul Hakeem College, Melvisharam, 632509, Tamil Nadu, India
| | - Selvam Suryakodi
- Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College (Affiliated to Thiruvalluvar University), Melvisharam, 632509, Tamil Nadu, India
| | - Abdul Nafeez Ahmed
- Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College (Affiliated to Thiruvalluvar University), Melvisharam, 632509, Tamil Nadu, India
| | - Gani Taju
- Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College (Affiliated to Thiruvalluvar University), Melvisharam, 632509, Tamil Nadu, India
| | - Mohamed Jaffer Abdul Wazith
- Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College (Affiliated to Thiruvalluvar University), Melvisharam, 632509, Tamil Nadu, India
| | - Palsamy Ramesh Kumar
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam, 623520, Tamil Nadu, India
| | - Azeez Sait Sahul Hameed
- Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College (Affiliated to Thiruvalluvar University), Melvisharam, 632509, Tamil Nadu, India.
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3
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Yan L, Wang P, Zhao C, Zhang B, Zhang B, Guo J, Qiu L. Development of a spotted sea bass (Lateolabrax maculatus) bulbus arteriosus cell line and its application to fish virology and immunology. FISH & SHELLFISH IMMUNOLOGY 2024; 144:109298. [PMID: 38122954 DOI: 10.1016/j.fsi.2023.109298] [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: 08/25/2023] [Revised: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
The bulbus arteriosus tissue of teleosts, which is located at the forefront of the heart, is used to reduce the pulse pressure. In this study, we constructed a permanent cell line (LmAB) for the first time using bulbus arteriosus tissue from spotted sea bass (Lateolabrax maculatus). This cell line has been passaged more than 80 times. Currently, it can be subcultured in L-15 medium with 8 % fetal bovine serum added. The optimal fetal bovine serum concentration and culture temperature for LmAB cells at 62 passages are 20 % and 28 °C, respectively. This cell line consists predominantly of epithelial-like cells. We used 18S rRNA gene sequencing to confirm that LmAB cells originated from spotted sea bass. Karyotype analysis revealed that 43 % of LmAB cells in passage 63 had 48 chromosomes. Exogenous plasmid transfection revealed that LmAB cells can express the green fluorescent protein gene with a transfection efficiency of up to 40 %, indicating that these cells can be used for in vitro genetic research. LmAB cells showed susceptibility to nervous necrosis virus, largemouth bass ulcer syndrome virus, and infectious spleen and kidney necrosis virus, which results in severe cytopathic effects. PCR analysis verified that these viruses can replicate in LmAB cells, and analysis of cytoskeletal F-actin patterns verified that infected cells exhibit serious changes in their actin cytoskeleton. LmAB cells infected with these three viruses showed increased expressions of interferon signaling pathway genes (IFNd, IFNγ-rel, and ISG15), indicating that the host interferon signaling pathway participates in the antiviral immune response. These findings indicate that our newly developed LmAB cell line is a valuable resource for future research in genetics, virology, and immunology.
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Affiliation(s)
- Lulu Yan
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Pengfei Wang
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Chao Zhao
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Bo Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Bo Zhang
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China
| | - Jieyun Guo
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Lihua Qiu
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Sanya Tropical Fisheries Research Institute, Sanya, China; Key Laboratory of Aquatic Genomics, Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Science, Beijing, China.
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4
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Kim C, Cnaani A, Kültz D. Removal of evolutionarily conserved functional MYC domains in a tilapia cell line using a vector-based CRISPR/Cas9 system. Sci Rep 2023; 13:12086. [PMID: 37495710 PMCID: PMC10371998 DOI: 10.1038/s41598-023-37928-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 06/29/2023] [Indexed: 07/28/2023] Open
Abstract
MYC transcription factors have critical roles in facilitating a variety of cellular functions that have been highly conserved among species during evolution. However, despite circumstantial evidence for an involvement of MYC in animal osmoregulation, mechanistic links between MYC function and osmoregulation are missing. Mozambique tilapia (Oreochromis mossambicus) represents an excellent model system to study these links because it is highly euryhaline and highly tolerant to osmotic (salinity) stress at both the whole organism and cellular levels of biological organization. Here, we utilize an O. mossambicus brain cell line and an optimized vector-based CRISPR/Cas9 system to functionally disrupt MYC in the tilapia genome and to establish causal links between MYC and cell functions, including cellular osmoregulation. A cell isolation and dilution strategy yielded polyclonal myca (a gene encoding MYC) knockout (ko) cell pools with low genetic variability and high gene editing efficiencies (as high as 98.2%). Subsequent isolation and dilution of cells from these pools produced a myca ko cell line harboring a 1-bp deletion that caused a frameshift mutation. This frameshift functionally inactivated the transcriptional regulatory and DNA-binding domains predicted by bioinformatics and structural analyses. Both the polyclonal and monoclonal myca ko cell lines were viable, propagated well in standard medium, and differed from wild-type cells in morphology. As such, they represent a new tool for causally linking myca to cellular osmoregulation and other cell functions.
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Affiliation(s)
- Chanhee Kim
- Department of Animal Sciences, University of California, Davis, CA, 95616, USA
| | - Avner Cnaani
- Department of Poultry and Aquaculture, Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, 7528809, Rishon LeZion, Israel
| | - Dietmar Kültz
- Department of Animal Sciences, University of California, Davis, CA, 95616, USA.
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5
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Hutson KS, Davidson IC, Bennett J, Poulin R, Cahill PL. Assigning cause for emerging diseases of aquatic organisms. Trends Microbiol 2023:S0966-842X(23)00031-8. [PMID: 36841735 DOI: 10.1016/j.tim.2023.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/25/2023]
Abstract
Resolving the cause of disease (= aetiology) in aquatic organisms is a challenging but essential goal, heightened by increasing disease prevalence in a changing climate and an interconnected world of anthropogenic pathogen spread. Emerging diseases play important roles in evolutionary ecology, wildlife conservation, the seafood industry, recreation, cultural practices, and human health. As we emerge from a global pandemic of zoonotic origin, we must focus on timely diagnosis to confirm aetiology and enable response to diseases in aquatic ecosystems. Those systems' resilience, and our own sustainable use of seafood, depend on it. Synchronising traditional and recent advances in microbiology that span ecological, veterinary, and medical fields will enable definitive assignment of risk factors and causal agents for better biosecurity management and healthier aquatic ecosystems.
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Affiliation(s)
- Kate S Hutson
- Cawthron Institute, 98 Halifax St East, Nelson, New Zealand; College of Science and Engineering, James Cook University, Townsville, Australia.
| | - Ian C Davidson
- Cawthron Institute, 98 Halifax St East, Nelson, New Zealand
| | - Jerusha Bennett
- Department of Zoology, University of Otago, Dunedin, New Zealand
| | - Robert Poulin
- Department of Zoology, University of Otago, Dunedin, New Zealand
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6
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Zhang Z, Wang J, Li J, Liu X, Liu L, Zhao C, Tao W, Wang D, Wei J. Establishment of an Integrated CRISPR/Cas9 Plasmid System for Simple and Efficient Genome Editing in Medaka In Vitro and In Vivo. BIOLOGY 2023; 12:biology12020336. [PMID: 36829610 PMCID: PMC9953409 DOI: 10.3390/biology12020336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 02/25/2023]
Abstract
Although CRISPR/Cas9 has been used in gene manipulation of several fish species in vivo, its application in fish cultured cells is still challenged and limited. In this study, we established an integrated CRISPR/Cas9 plasmid system and evaluated its efficiency of gene knock-out or knock-in at a specific site in medaka (Oryzias latipes) in vitro and in vivo. By using the enhanced green fluorescent protein reporter plasmid pGNtsf1, we demonstrate that pCas9-U6sgRNA driven by endogenous U6 promoter (pCas9-mU6sgRNA) mediated very high gene editing efficiency in medaka cultured cells, but not by exogenous U6 promoters. After optimizing the conditions, the gene editing efficiencies of eight sites targeting for four endogenous genes were calculated, and the highest was up to 94% with no detectable off-target. By one-cell embryo microinjection, pCas9-mU6sgRNA also mediated efficient gene knock-out in vivo. Furthermore, pCas9-mU6sgRNA efficiently mediated gene knock-in at a specific site in medaka cultured cells as well as embryos. Collectively, our study demonstrates that the genetic relationship of U6 promoter is critical to gene editing efficiency in medaka cultured cells, and a simple and efficient system for medaka genome editing in vitro and in vivo has been established. This study provides an insight into other fish genome editing and promotes gene functional analysis.
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Affiliation(s)
- Zeming Zhang
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jie Wang
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
- Sichuan Province Yuechi Middle School, Guang’an 638300, China
| | - Jianeng Li
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Xiang Liu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Lei Liu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Changle Zhao
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Wenjing Tao
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Deshou Wang
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
- Correspondence: (D.W.); (J.W.)
| | - Jing Wei
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
- Correspondence: (D.W.); (J.W.)
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Strømsnes TAH, Schmidke SE, Azad M, Singstad Ø, Grønsberg IM, Dalmo RA, Okoli AS. CRISPR/Cas9-Mediated Gene Editing in Salmonids Cells and Efficient Establishment of Edited Clonal Cell Lines. Int J Mol Sci 2022; 23:ijms232416218. [PMID: 36555862 PMCID: PMC9787932 DOI: 10.3390/ijms232416218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/03/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Finfish production has seen over three-fold increase in the past 30 years (1990-2020), and Atlantic salmon (A. salmon; salmo salar) accounted for approximately 32.6% of the total marine and coastal aquaculture of all finfish species in the year 2020, making it one of the most profitable farmed fish species globally. This growth in production is, however, threatened by a number of problems which can be solved using the CRISPR/Cas technology. In vitro applications of CRISPR/Cas using cell lines can complement its in vivo applications, but salmonids-derived cell lines are difficult to gene edit because they grow slowly, are difficult to transfect and isolate single clones of gene-edited cells. While clonal isolation of the gene-edited Chinook salmon cell line (CHSE-214) has successfully been performed, there is no report of successful clonal isolation of the gene-edited A. salmon ASK-1 and SHK-1cell lines. In the current study, two gene loci-cr2 and mmp9 of A. salmon-were efficiently edited using the ribonucleoprotein (RNP) and plasmid CRISPR/Cas9 strategies. Edited cells were enriched using flow cytometer-activated cell sorting (FACS), followed by clonal isolation and expansion of edited cells. The study both confirms the recent report of the highly efficient editing of these widely used model cell lines, as well as extends the frontline in the single-cell cloning of gene-edited salmonids cells. The report also highlights the pitfalls and future directions in the application of CRISPR/Cas9 in these cells.
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Affiliation(s)
- Trygve A. H. Strømsnes
- NORCE Norwegian Research Centre AS, Climate & Environment Division, Siva Innovasjonssenter, Sykehusveien 21, 9019 Tromsø, Norway
| | - Sebastian E. Schmidke
- NORCE Norwegian Research Centre AS, Climate & Environment Division, Siva Innovasjonssenter, Sykehusveien 21, 9019 Tromsø, Norway
| | - Mitra Azad
- NORCE Norwegian Research Centre AS, Climate & Environment Division, Siva Innovasjonssenter, Sykehusveien 21, 9019 Tromsø, Norway
| | - Øyvind Singstad
- NORCE Norwegian Research Centre AS, Climate & Environment Division, Siva Innovasjonssenter, Sykehusveien 21, 9019 Tromsø, Norway
| | - Idun M. Grønsberg
- NORCE Norwegian Research Centre AS, Climate & Environment Division, Siva Innovasjonssenter, Sykehusveien 21, 9019 Tromsø, Norway
| | - Roy A. Dalmo
- Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT—The Arctic University of Norway, Muninbakken 21, 9019 Tromsø, Norway
| | - Arinze S. Okoli
- NORCE Norwegian Research Centre AS, Climate & Environment Division, Siva Innovasjonssenter, Sykehusveien 21, 9019 Tromsø, Norway
- Correspondence:
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8
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Holland JW, Secombes CJ, Collet B. RTG-TOF, a rainbow trout (Oncorhynchus mykiss) cell line with an inducible gene expression system. In Vitro Cell Dev Biol Anim 2022; 58:851-854. [PMID: 36394774 DOI: 10.1007/s11626-022-00735-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/29/2022] [Indexed: 11/18/2022]
Affiliation(s)
- Jason W Holland
- Scottish Fish Immunology Research Centre, University of Aberdeen, Aberdeen, AB24 2TZ, UK
| | - Christopher J Secombes
- Scottish Fish Immunology Research Centre, University of Aberdeen, Aberdeen, AB24 2TZ, UK
| | - Bertrand Collet
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France.
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9
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Porter D, Peggs D, McGurk C, Martin SAM. Gut Associated Lymphoid Tissue (GALT) primary cells and stable cell lines as predictive models for intestinal health in rainbow trout (Oncorhynchus mykiss). Front Immunol 2022; 13:1023235. [PMID: 36341406 PMCID: PMC9632348 DOI: 10.3389/fimmu.2022.1023235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/30/2022] [Indexed: 11/26/2022] Open
Abstract
The use of functional feeds for farmed fish is now regarded as a key factor in improving fish health and performance against infectious disease. However, the mechanisms by which these nutritional components modulate the immune response are not fully understood. The present study was undertaken to identify the suitability of both primary gut-associated lymphoid tissue (GALT) leucocyte cells and established rainbow trout cell lines as potential alternative methods to test functional feed ingredients prior to full fish feeding trials that can take months to complete. In addition to the primary GALT culture cells, the two rainbow cell lines RTS11 and RTgutGC which are from macrophage and gut epithelial cells, respectively. The cells were stimulated with a variety of pathogen associated molecular patterns (PAMPs) (PHA and Poly I:C) and recombinant rainbow trout IL-1β (rIL-1β), a proinflammatory cytokine, additionally two forms of β-glucan, a prebiotic commonly used aquafeeds were used as stimulants. From this, the suitability of cell models as a health screen for functional feeds was assessed. GALT leucocytes were deemed most effective to act as a health screen over the 4hr time point demonstrating responses to Poly I:C, PHA, and rIL-1β. RTS11 and RTgutGC also responded to the stimulants but did not give a strong T-cell response, most likely reflecting the nature of the cell type as opposed to the mixed cell populations from the primary GALT cell cultures. When stimulated with both forms of β-glucan, GALT leucocytes demonstrated a strong proinflammatory and T-cell response.
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Affiliation(s)
- D. Porter
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - David Peggs
- Skretting Aquaculture Innovation, Stavanger, Norway
| | - C. McGurk
- Skretting Aquaculture Innovation, Stavanger, Norway
| | - Samuel A. M. Martin
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
- *Correspondence: Samuel A. M. Martin,
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10
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Silva DMZA, Castro JP, Goes CAG, Utsunomia R, Vidal MR, Nascimento CN, Lasmar LF, Paim FG, Soares LB, Oliveira C, Porto-Foresti F, Artoni RF, Foresti F. B Chromosomes in Psalidodon scabripinnis (Characiformes, Characidae) Species Complex. Animals (Basel) 2022; 12:ani12172174. [PMID: 36077895 PMCID: PMC9454733 DOI: 10.3390/ani12172174] [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: 07/24/2022] [Revised: 08/19/2022] [Accepted: 08/19/2022] [Indexed: 11/24/2022] Open
Abstract
Simple Summary For more than a century, B chromosomes have been investigated in several eukaryotic species. These supernumerary genomic elements behave as parasites or provide fitness benefits to the hosts. They are mostly composed of repetitive DNA, but they also have protein-coding genes. B chromosomes are associated with differential gene expression and phenotypic effects. This makes them one of the most interesting genomic elements to investigate. Fish species of the Psalidodon genus harbor a great diversity of B chromosomes. Recent studies showed they share a common ancestor, persisting in the genus for a long time and enduring speciation processes. In the Psalidodon scabripinnis species complex, B chromosomes express their own genes, mostly related to cell cycle and gonad differentiation. Moreover, these B chromosomes are associated with functional effects, e.g., cell cycle extension. Here, we review the current knowledge regarding these elements in the P. scabripinnis species complex and propose a chromosome speciation model facilitated by the B chromosome manipulation of the cell machinery. Abstract B chromosomes are extra-genomic components of cells found in individuals and in populations of some eukaryotic organisms. They have been described since the first observations of chromosomes, but several aspects of their biology remain enigmatic. Despite being present in hundreds of fungi, plants, and animal species, only a small number of B chromosomes have been investigated through high-throughput analyses, revealing the remarkable mechanisms employed by these elements to ensure their maintenance. Populations of the Psalidodon scabripinnis species complex exhibit great B chromosome diversity, making them a useful material for various analyses. In recent years, important aspects of their biology have been revealed. Here, we review these studies presenting a comprehensive view of the B chromosomes in the P. scabripinnis complex and a new hypothesis regarding the role of the B chromosome in the speciation process.
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Affiliation(s)
- Duílio M. Z. A. Silva
- Laboratory of Biology and Genetics of Fishes, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu 18618-970, SP, Brazil
- Correspondence:
| | - Jonathan P. Castro
- Post-Graduate Program in Evolutionary Genetics and Molecular Biology, Department of Genetics and Evolution, Federal University of Sao Carlos, Sao Carlos 13565-905, SP, Brazil
- Laboratory of Evolutionary Genetics, Department of Structural, Molecular and Genetic Biology, State University of Ponta Grossa, Ponta Grossa 84030-900, PR, Brazil
| | - Caio A. G. Goes
- Laboratory of Fish Genetics, Department of Biological Sciences, Faculty of Sciences, São Paulo State University, Bauru 17033-360, SP, Brazil
| | - Ricardo Utsunomia
- Laboratory of Fish Genetics, Department of Biological Sciences, Faculty of Sciences, São Paulo State University, Bauru 17033-360, SP, Brazil
- Laboratory of Fish Genetics, Department of Genetics, Institute of Biological Sciences and Health, Federal Rural University of Rio de Janeiro, Seropedica 23890-000, RJ, Brazil
| | - Mateus R. Vidal
- Laboratory of Biology and Genetics of Fishes, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu 18618-970, SP, Brazil
| | - Cristiano N. Nascimento
- Laboratory of Biology and Genetics of Fishes, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu 18618-970, SP, Brazil
| | - Lucas F. Lasmar
- Laboratory of Biology and Genetics of Fishes, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu 18618-970, SP, Brazil
| | - Fabilene G. Paim
- Laboratory of Biology and Genetics of Fishes, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu 18618-970, SP, Brazil
| | - Letícia B. Soares
- Laboratory of Biology and Genetics of Fishes, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu 18618-970, SP, Brazil
| | - Claudio Oliveira
- Laboratory of Biology and Genetics of Fishes, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu 18618-970, SP, Brazil
| | - Fábio Porto-Foresti
- Laboratory of Fish Genetics, Department of Biological Sciences, Faculty of Sciences, São Paulo State University, Bauru 17033-360, SP, Brazil
| | - Roberto F. Artoni
- Post-Graduate Program in Evolutionary Genetics and Molecular Biology, Department of Genetics and Evolution, Federal University of Sao Carlos, Sao Carlos 13565-905, SP, Brazil
- Laboratory of Evolutionary Genetics, Department of Structural, Molecular and Genetic Biology, State University of Ponta Grossa, Ponta Grossa 84030-900, PR, Brazil
| | - Fausto Foresti
- Laboratory of Biology and Genetics of Fishes, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu 18618-970, SP, Brazil
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11
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Porter D, Peggs D, McGurk C, Martin SAM. Immune responses to prebiotics in farmed salmonid fish: How transcriptomic approaches help interpret responses. FISH & SHELLFISH IMMUNOLOGY 2022; 127:35-47. [PMID: 35667538 DOI: 10.1016/j.fsi.2022.05.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/24/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Within aquaculture, prebiotics are composed of complex carbohydrate molecules that cannot be digested by the fish directly but are metabolised by the microbial communities within the host gut, with the desire that "healthy" bacterial species are promoted with subsequently improved performance of the fish, there are likely some direct responses of intestinal cells to these dietary components. The sources and processing of prebiotics, which fall under the overarching theme of "functional feeds" are highly varied between species and types of prebiotics administered. How these feeds exert their effect, and the host responses are hard to determine, but new technologies and the development of high-throughput technologies (omics) are enabling the mechanisms and methods of action to be further understood. The recent advances in the availability of 'omics' technologies with the transition from single gene assays to microarray and RNA-seq in fish health have enabled novel functional ingredients to be analysed. This review will focus on recent studies on targeted gene expression and 'omics' technologies to characterize immune responses. Comparisons between the immunomodulatory effect of different prebiotics have been made and specific examples of how transcriptomics techniques have been used to identify immune responses to prebiotics are given.
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Affiliation(s)
- D Porter
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24, 2TZ, UK
| | - D Peggs
- Skretting ARC, Sjøhagen 15, 4016 Stavanger, Norway
| | - C McGurk
- Skretting ARC, Sjøhagen 15, 4016 Stavanger, Norway
| | - S A M Martin
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Aberdeen, AB24, 2TZ, UK.
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12
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Plasmid-driven RNA interference in fish cell lines. In Vitro Cell Dev Biol Anim 2022; 58:189-193. [PMID: 35275331 DOI: 10.1007/s11626-022-00645-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 12/23/2021] [Indexed: 11/05/2022]
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13
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Segner H, Rehberger K, Bailey C, Bo J. Assessing Fish Immunotoxicity by Means of In Vitro Assays: Are We There Yet? Front Immunol 2022; 13:835767. [PMID: 35296072 PMCID: PMC8918558 DOI: 10.3389/fimmu.2022.835767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/01/2022] [Indexed: 11/28/2022] Open
Abstract
There is growing awareness that a range of environmental chemicals target the immune system of fish and may compromise the resistance towards infectious pathogens. Existing concepts to assess chemical hazards to fish, however, do not consider immunotoxicity. Over recent years, the application of in vitro assays for ecotoxicological hazard assessment has gained momentum, what leads to the question whether in vitro assays using piscine immune cells might be suitable to evaluate immunotoxic potentials of environmental chemicals to fish. In vitro systems using primary immune cells or immune cells lines have been established from a wide array of fish species and basically from all immune tissues, and in principal these assays should be able to detect chemical impacts on diverse immune functions. In fact, in vitro assays were found to be a valuable tool in investigating the mechanisms and modes of action through which environmental agents interfere with immune cell functions. However, at the current state of knowledge the usefulness of these assays for immunotoxicity screening in the context of chemical hazard assessment appears questionable. This is mainly due to a lack of assay standardization, and an insufficient knowledge of assay performance with respect to false positive or false negative signals for the different toxicant groups and different immune functions. Also the predictivity of the in vitro immunotoxicity assays for the in vivo immunotoxic response of fishes is uncertain. In conclusion, the currently available database is too limited to support the routine application of piscine in vitro assays as screening tool for assessing immunotoxic potentials of environmental chemicals to fish.
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Affiliation(s)
- Helmut Segner
- Centre for Fish and Wildlife Health, Department of Pathobiology and Infectious Diseases, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Kristina Rehberger
- Centre for Fish and Wildlife Health, Department of Pathobiology and Infectious Diseases, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | | | - Jun Bo
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Xiamen, China
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14
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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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15
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Li Y, Jia P, Yu F, Li W, Mao C, Yi M, Gu Q, Jia K. Establishment and characterization of a liver cell line, ALL, derived from yellowfin sea bream, Acanthopagrus latus, and its application to fish virology. JOURNAL OF FISH DISEASES 2022; 45:141-151. [PMID: 34624134 DOI: 10.1111/jfd.13543] [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: 07/15/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Yellowfin sea bream (Acanthopagrus latus) is an important economic fish, which is seriously threatened by various fish viruses. In this study, a cell line designated as ALL derived from the liver of yellowfin sea bream was developed and characterized. The cell line grew well in Dulbecco's modified Eagle's medium containing 10%-20% foetal bovine serum at 28°C. Amplification of the cytochrome B gene indicated that ALL cells originated from yellowfin sea bream. The modal chromosome number of ALL cells was 48. ALL cells were efficiently transfected with pEGFP-N3 plasmids, indicating the potential application of ALL cells in exogenous gene manipulation studies. ALL cells were susceptive to three main fish viruses, including viral haemorrhagic septicaemia virus (VHSV), red-spotted grouper nervous necrosis virus (RGNNV) and largemouth bass virus (LMBV). The replication of VHSV, RGNNV and LMBV in ALL cells was confirmed by quantitative real-time polymerase chain reaction, virus titre and transmission electron microscopy assays. Moreover, ALL cells could respond to VHSV, RGNNV and LMBV infections, as indicated by the differential expression of antiviral genes involving in the innate immune response. In conclusion, the newly established ALL cell line will be an excellent in vitro platform for the study of the virus-yellowfin sea bream interaction.
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Affiliation(s)
- Yong Li
- Modern Agricultural Development Center of Zhuhai City, Zhuhai, China
| | - Peng Jia
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Fangzhao Yu
- Modern Agricultural Development Center of Zhuhai City, Zhuhai, China
| | - Wangdong Li
- Modern Agricultural Development Center of Zhuhai City, Zhuhai, China
| | - Can Mao
- Modern Agricultural Development Center of Zhuhai City, Zhuhai, China
| | - Meisheng Yi
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Qunhong Gu
- Modern Agricultural Development Center of Zhuhai City, Zhuhai, China
| | - Kuntong Jia
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
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16
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Sea Bass Primary Cultures versus RTgill-W1 Cell Line: Influence of Cell Model on the Sensitivity to Nanoparticles. NANOMATERIALS 2021; 11:nano11113136. [PMID: 34835900 PMCID: PMC8620814 DOI: 10.3390/nano11113136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/14/2021] [Accepted: 11/15/2021] [Indexed: 01/09/2023]
Abstract
Determination of acute toxicity to vertebrates in aquatic environments is mainly performed following OECD test guideline 203, requiring the use of a large number of fish and with mortality as endpoint. This test is also used to determine toxicity of nanomaterials in aquatic environments. Since a replacement method for animal testing in nanotoxicity studies is desirable, the feasibility of fish primary cultures or cell lines as a model for nanotoxicity screenings is investigated here. Dicentrarchus labrax primary cultures and RTgill-W1 cell line were exposed to several concentrations (0.1 to 200 ug/mL) of different nanoparticles (TiO2, polystyrene and silver), and cytotoxicity, metabolic activity and reactive oxygen species formation were investigated after 24 and 48 h of exposure. Protein corona as amount of protein bound, as well as the influence of surface modification (-COOH, -NH2), exposure media (Leibovitz’s L15 or seawater), weathering and cell type were the experimental variables included to test their influence on the results of the assays. Data from all scenarios was split based on the significance each experimental variable had in the result of the cytotoxicity tests, in an exploratory approach that allows for better understanding of the determining factors affecting toxicity. Data shows that more variables significantly influenced the outcome of toxicity tests when the primary cultures were exposed to the different nanoparticles. Toxicity tests performed in RTgill-W1 were influenced only by exposure time and nanoparticle concentration. The whole data set was integrated in a biological response index to show the overall impact of nanoparticle exposures.
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17
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Zoppo M, Okoniewski N, Pantelyushin S, Vom Berg J, Schirmer K. A ribonucleoprotein transfection strategy for CRISPR/Cas9-mediated gene editing and single cell cloning in rainbow trout cells. Cell Biosci 2021; 11:103. [PMID: 34082820 PMCID: PMC8176604 DOI: 10.1186/s13578-021-00618-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The advent of the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 technology marked the beginning of a new era in the field of molecular biology, allowing the efficient and precise creation of targeted mutations in the genome of every living cell. Since its discovery, different gene editing approaches based on the CRISPR/Cas9 technology have been widely established in mammalian cell lines, while limited knowledge is available on genetic manipulation in fish cell lines. In this work, we developed a strategy to CRISPR/Cas9 gene edit rainbow trout (Oncorhynchus mykiss) cell lines and to generate single cell clone-derived knock-out cell lines, focusing on the phase I biotransformation enzyme encoding gene, cyp1a1, and on the intestinal cell line, RTgutGC, as example. RESULTS Ribonucleoprotein (RNP) complexes, consisting of the Cas9 protein and a fluorescently labeled crRNA/tracrRNA duplex targeting the cyp1a1 gene, were delivered via electroporation. A T7 endonuclease I (T7EI) assay was performed on flow cytometry enriched transfected cells in order to detect CRISPR-mediated targeted mutations in the cyp1a1 locus, revealing an overall gene editing efficiency of 39%. Sanger sequencing coupled with bioinformatic analysis led to the detection of multiple insertions and deletions of variable lengths in the cyp1a1 region directed by CRISPR/Cas9 machinery. Clonal isolation based on the use of cloning cylinders was applied, allowing to overcome the genetic heterogeneity created by the CRISPR/Cas9 gene editing. Using this method, two monoclonal CRISPR edited rainbow trout cell lines were established for the first time. Sequencing analysis of the mutant clones confirmed the disruption of the cyp1a1 gene open reading frame through the insertion of 101 or 1 base pair, respectively. CONCLUSIONS The designed RNP-based CRISPR/Cas9 approach, starting from overcoming limitations of transfection to achieving a clonal cell line, sets the stage for exploiting permanent gene editing in rainbow trout, and potentially other fish cells, for unprecedented exploration of gene function.
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Affiliation(s)
- Marina Zoppo
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland.
| | - Nicole Okoniewski
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland
| | - Stanislav Pantelyushin
- Institute of Laboratory Animal Science, University of Zurich, 8952, Schlieren, Switzerland
| | - Johannes Vom Berg
- Institute of Laboratory Animal Science, University of Zurich, 8952, Schlieren, Switzerland
| | - Kristin Schirmer
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland.,ENAC, EPF Lausanne, 1015, Lausanne, Switzerland.,Department of Environmental Systems Science, ETH Zürich, 8092, Zürich, Switzerland
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18
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Gratacap RL, Jin YH, Mantsopoulou M, Houston RD. Efficient Genome Editing in Multiple Salmonid Cell Lines Using Ribonucleoprotein Complexes. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2020; 22:717-724. [PMID: 32946000 PMCID: PMC7520412 DOI: 10.1007/s10126-020-09995-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 08/31/2020] [Indexed: 06/11/2023]
Abstract
Infectious and parasitic diseases have major negative economic and animal welfare impacts on aquaculture of salmonid species. Improved knowledge of the functional basis of host response and genetic resistance to these diseases is key to developing preventative and treatment options. Cell lines provide valuable models to study infectious diseases in salmonids, and genome editing using CRISPR/Cas systems provides an exciting avenue to evaluate the function of specific genes in those systems. While CRISPR/Cas editing has been successfully performed in a Chinook salmon cell line (CHSE-214), there are no reports to date of editing of cell lines derived from the most commercially relevant salmonid species Atlantic salmon and rainbow trout, which are difficult to transduce and therefore edit using lentivirus-mediated methods. In the current study, a method of genome editing of salmonid cell lines using ribonucleoprotein (RNP) complexes was optimised and tested in the most commonly used salmonid fish cell lines: Atlantic salmon (SHK-1 and ASK cell lines), rainbow trout (RTG-2) and Chinook salmon (CHSE-214). Electroporation of RNP based on either Cas9 or Cas12a was efficient at targeted editing of all the tested lines (typically > 90% cells edited), and the choice of enzyme expands the number of potential target sites for editing within the genomes of these species. These optimised protocols will facilitate functional genetic studies in salmonid cell lines, which are widely used as model systems for infectious diseases in aquaculture.
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Affiliation(s)
- Remi L Gratacap
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Ye Hwa Jin
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Marina Mantsopoulou
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Ross D Houston
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK.
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Ruiz-Palacios M, Almeida M, Martins MA, Oliveira M, Esteban MÁ, Cuesta A. Establishment of a brain cell line (FuB-1) from mummichog (Fundulus heteroclitus) and its application to fish virology, immunity and nanoplastics toxicology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 708:134821. [PMID: 31791770 DOI: 10.1016/j.scitotenv.2019.134821] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 06/10/2023]
Abstract
The marine fish mummichog (Fundulus heteroclitus), extensively used as research model, including in ecotoxicology, for over a century has been surpassed by other fish species. This fact may be associated with the lack of cell lines from this species, excellent models for the comprehension of fish physiology, immunology, toxicology and virology, that contribute to the reduction in the number of animals used in research. We have generated, for the first time, a brain-derived cell line from mummichog, FuB-1, and evaluated its application to the fields of fish virology, immunity and toxicology. First, FuB-1 cells show epithelial morphology and neural stem/astroglial origin. Secondly, FuB-1 cells effectively supports the replication of both spring viremia carp (SVCV) and infectious pancreatic necrosis (IPNV) viruses, but not nodavirus (NNV), indicating its potential use for fish virology. Related to this, FuB-1 cells infected with NNV up-regulate the transcription of genes related to the antiviral immune response, leading to cell resistance; while they are unaltered when infected with IPNV and SVCV, facilitating viral replication. Finally, FuB-1 cells were used for toxicological purposes and we demonstrated that exposure to either polystyrene nanoplastics (PS-100) or several human-usage pharmaceuticals are cytotoxic. Additionally, PS-100 particles increase the antioxidant catalase and glutathione S-transferase activities and decrease the total non-protein thiols in FuB-1 cells. However, PS-100 particles are able to reduce the cytotoxic effects induced by the pharmaceuticals. In conclusion, we have generated a cell line from mummichog, which might represent a valuable model for fish studies in the fields of virology, immunology and toxicology.
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Affiliation(s)
- María Ruiz-Palacios
- Fish Innate Immune System Group, Department of Cellular Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain
| | - Mónica Almeida
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Manuel A Martins
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Miguel Oliveira
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - María Ángeles Esteban
- Fish Innate Immune System Group, Department of Cellular Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain
| | - Alberto Cuesta
- Fish Innate Immune System Group, Department of Cellular Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain.
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20
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Li J, Jia P, Chen X, Lai M, Jin F, Liu W, Yi M, Jia K. Establishment and characterization of a fin tissue cell line derived from silver pomfret, Pampus argenteus. JOURNAL OF FISH DISEASES 2019; 42:1391-1399. [PMID: 31381181 DOI: 10.1111/jfd.13059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/18/2019] [Accepted: 06/19/2019] [Indexed: 06/10/2023]
Abstract
A cell line (PaF) derived from the fin tissue of silver pomfret (Pampus argenteus) was established and characterized in this study. The cell line has been subcultured for more than 50 times in Dulbecco's modified Eagle's medium (DMEM) containing 15% foetal bovine serum (FBS) since the initial primary culture. PaF cells grew well at temperatures from 24°C to 28°C in DMEM supplemented with 15% FBS. Partial amplification and sequence analysis of the cytochrome B gene indicated that PaF originated from silver pomfret. Cytogenetic analysis demonstrated that the modal chromosome number was 48. A significant cytopathic effect was observed in PaF cells during viral haemorrhagic septicaemia virus (VHSV) infection, and the VHSV replication was confirmed by qRT-PCR and viral titre assays. In contrast, PaF cells were resistant to red-spotted grouper nervous necrosis virus infection. Moreover, PaF cells could respond to VHSV and lipopolysaccharide treatments, as indicated by the expression of immune-related genes, TLR5 and TLR9. In conclusion, the establishment of PaF cell line will provide an appropriate in vitro tool for the study of mechanisms of pathogen-silver pomfret interaction.
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Affiliation(s)
- Jianhuan Li
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
- Zhuhai Key Laboratory of Marine Bioresources and Environment, Sun Yat-sen University, Guangzhou, China
| | - Peng Jia
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
- Zhuhai Key Laboratory of Marine Bioresources and Environment, Sun Yat-sen University, Guangzhou, China
| | - Xueji Chen
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
- Zhuhai Key Laboratory of Marine Bioresources and Environment, Sun Yat-sen University, Guangzhou, China
| | - Mingyan Lai
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Fanming Jin
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Wei Liu
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
- Zhuhai Key Laboratory of Marine Bioresources and Environment, Sun Yat-sen University, Guangzhou, China
| | - Meisheng Yi
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
- Zhuhai Key Laboratory of Marine Bioresources and Environment, Sun Yat-sen University, Guangzhou, China
| | - Kuntong Jia
- School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
- Zhuhai Key Laboratory of Marine Bioresources and Environment, Sun Yat-sen University, Guangzhou, China
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Langevin C, Boudinot P, Collet B. IFN Signaling in Inflammation and Viral Infections: New Insights from Fish Models. Viruses 2019; 11:v11030302. [PMID: 30917538 PMCID: PMC6466407 DOI: 10.3390/v11030302] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/22/2019] [Accepted: 03/23/2019] [Indexed: 12/20/2022] Open
Abstract
The overarching structure of the type I interferon (IFN) system is conserved across vertebrates. However, the variable numbers of whole genome duplication events during fish evolution offer opportunities for the expansion, diversification, and new functionalization of the genes that are involved in antiviral immunity. In this review, we examine how fish models provide new insights about the implication of virus-driven inflammation in immunity and hematopoiesis. Mechanisms that have been discovered in fish, such as the strong adjuvant effect of type I IFN that is used with DNA vaccination, constitute good models to understand how virus-induced inflammatory mechanisms can interfere with adaptive responses. We also comment on new discoveries regarding the role of pathogen-induced inflammation in the development and guidance of hematopoietic stem cells in zebrafish. These findings raise issues about the potential interferences of viral infections with the establishment of the immune system. Finally, the recent development of genome editing provides new opportunities to dissect the roles of the key players involved in the antiviral response in fish, hence enhancing the power of comparative approaches.
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Affiliation(s)
- Christelle Langevin
- INRA, Virologie et Immunologie Moléculaires, Université Paris-Saclay, 78352 Jouy-en-Josas, France.
| | - Pierre Boudinot
- INRA, Virologie et Immunologie Moléculaires, Université Paris-Saclay, 78352 Jouy-en-Josas, France.
| | - Bertrand Collet
- INRA, Virologie et Immunologie Moléculaires, Université Paris-Saclay, 78352 Jouy-en-Josas, France.
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Abstract
Among the many anthropogenic chemicals that end up in the aquatic ecosystem, heavy metals, in particular cadmium, are hazardous compounds that have been shown to affect developmental, reproductive, hepatic, hematological, and immunological functions in teleost fish. There is also evidence that cadmium disturbs bone formation and skeletal development, but data is scarce. In this work, zebrafish was used to further characterize the anti-osteogenic/osteotoxic effects of cadmium and gain insights into underlying mechanisms. Upon exposure to cadmium, a reduction of the opercular bone growth was observed in 6-days post-fertilization (dpf) larvae and an increase in the incidence of skeletal deformities was evidenced in 20-dpf post-larvae. The extent and stiffness of newly formed bone was also affected in adult zebrafish exposed to cadmium while regenerating their caudal fin. A pathway reporter assay revealed a possible role of the MTF-1 and cAMP/PKA signaling pathways in mechanisms of cadmium osteotoxicity, while the expression of genes involved in osteoblast differentiation and matrix production was strongly reduced in cadmium-exposed post-larvae. This work not only confirmed cadmium anti-osteogenic activity and identified targeted pathways and genes, but it also suggested that cadmium may affect biomechanical properties of bone.
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Laizé V, Gavaia PJ, Tarasco M, Viegas MN, Caria J, Luis N, Cancela ML. Osteotoxicity of 3-methylcholanthrene in fish. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:721-728. [PMID: 29940513 DOI: 10.1016/j.ecoenv.2018.06.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/23/2018] [Accepted: 06/12/2018] [Indexed: 06/08/2023]
Abstract
Many chemicals produced by human activities end up in the aquatic ecosystem causing adverse developmental and reproductive effects in aquatic organisms. There is evidence that some anthropogenic chemicals disturb bone formation and skeletal development but the lack of suitable in vitro and in vivo systems for testing has hindered the identification of underlying mechanisms of osteotoxicity. Several fish systems - an in vitro cell system to study extracellular matrix mineralization and in vivo systems to evaluate bone formation and skeletogenesis - were combined to collect data on the osteotoxic activity of 3-methylcholanthrene (3-MC), a polycyclic aromatic hydrocarbon. Anti-mineralogenic effects, increased incidence of skeletal deformities and reduced bone formation and regeneration were observed in zebrafish upon exposure to 3-MC. Pathway reporter array revealed the role of the aryl hydrocarbon receptor 2 (Ahr2) in the mechanisms underlying 3-MC osteotoxicity in mineralogenic cell lines. Analysis of gene expression in zebrafish larvae confirmed the role of Ahr2 in the signaling of 3-MC toxicity. It also indicated a possible complementary action of the pregnane X receptor (Pxr) in the regulation of genes involved in bone cell activity and differentiation but also in xenobiotic metabolism. Data reported here demonstrated the osteotoxicity of 3-MC but also confirmed the suitability of fish systems to gain insights into the toxic mechanisms of compounds affecting skeletal and bone formation.
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Affiliation(s)
- Vincent Laizé
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal.
| | - Paulo J Gavaia
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal; Department of Biomedical Sciences and Medicine (DCBM) and Algarve Biomedical Center (ABC), University of Algarve, Faro, Portugal
| | - Marco Tarasco
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Michael N Viegas
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Joana Caria
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Nuno Luis
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - M Leonor Cancela
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal; Department of Biomedical Sciences and Medicine (DCBM) and Algarve Biomedical Center (ABC), University of Algarve, Faro, Portugal
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