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Zhang W, Chen H, Liu W, Jia K, Yi M. Characterizing Marine Medaka ( Oryzias melastigma) Haploid Embryonic Stem Cells: A Valuable Tool for Marine Fish Genetic Research. Animals (Basel) 2024; 14:2739. [PMID: 39335329 PMCID: PMC11428384 DOI: 10.3390/ani14182739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2024] [Revised: 09/14/2024] [Accepted: 09/20/2024] [Indexed: 09/30/2024] Open
Abstract
Haploid embryonic stem cells (ESCs), which combine the properties of haploidy and pluripotency, hold significant potential for advancing developmental biology and reproductive technology. However, while previous research has largely focused on haploid ESCs in freshwater species like Japanese medaka (Oryzias latipes), little is known about their counterparts in marine species. This study hypothesizes that haploid ESCs from marine fish could offer unique insights and tools for genetic and virological research. To address this, we successfully established and characterized a novel haploid ESC line, hMMES1, derived from marine medaka (Oryzias melastigma). The hMMES1 cells contain 24 chromosomes, exhibit core stem cell characteristics, and express key pluripotency markers. In vitro, hMMES1 cells form embryonic bodies (EBs) capable of differentiating into the three germ layers. In vivo, hMMES1 cells were successfully transplanted into marine medaka and zebrafish, resulting in the generation of interspecies and interordinal chimeras. Additionally, hMMES1 cells demonstrate high efficiency in transfection and transduction, and show susceptibility to major aquaculture viruses, nodavirus (NNV) and iridovirus (SGIV). These findings suggest that hMMES1 cells represent a valuable model for genetic manipulation and virological studies in marine fish species.
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Affiliation(s)
- Wanwan Zhang
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 519082, China
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou 519082, China
| | - Huiquan Chen
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 519082, China
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou 519082, China
| | - Wei Liu
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 519082, China
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou 519082, China
| | - Kuntong Jia
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 519082, China
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou 519082, China
- State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou 519082, China
| | - Meisheng Yi
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 519082, China
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou 519082, China
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Liu S, Lei X, Cao H, Xu Z, Wu S, Chen H, Xu L, Zhan Z, Xu Q, Wei J, Qin Q. Antiviral role of grouper FoxO1 against RGNNV and SGIV infection. FISH & SHELLFISH IMMUNOLOGY 2023; 142:109168. [PMID: 37844852 DOI: 10.1016/j.fsi.2023.109168] [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: 09/29/2023] [Revised: 10/11/2023] [Accepted: 10/14/2023] [Indexed: 10/18/2023]
Abstract
As a key regulator of the innate immune system, FoxO1 has a variety of activities in biological organisms. In the present study, grouper FoxO1 (EcFoxO1) was cloned and the antiviral activity in red grouper neuron necrosis virus (RGNNV) and Singapore grouper iridescent virus (SGIV) was examined. The open reading frame (ORF) of EcFoxO1 contains 2,034 base pairs that encode a protein of 677 amino acids with a predicted molecular weight of 73.21 kDa. EcFoxO1 was shown to be broadly distributed in healthy grouper tissues, and was up-regulated in vitro in response to stimulation by RGNNV and SGIV. EcFoxO1 has a whole-cell distribution in grouper spleen (GS) cells. EcFoxO1 decreased the replication of RGNNV and SGIV, and activated interferon (IFN) 3, IFN-stimulated response element (ISRE), and nuclear factor-κB (NF-κB) promoter activities. EcFoxO1 could interact with EcIRF3. Together, the results demonstrated that EcFoxO1 might be an important regulator of grouper innate immune response against RGNNV and SGIV infection.
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Affiliation(s)
- Shaoli Liu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Xiaoxia Lei
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Helong Cao
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Zhuqing Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Siting Wu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Hong Chen
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Linting Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Zhouling Zhan
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Qiongyue Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China
| | - Jingguang Wei
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China.
| | - Qiwei Qin
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Nansha-South China Agricultural University Fishery Research Institute,Guangzhou, Guangzhou, 511400,China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China.
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Wang W, Zhang Y, Guo X, Xu W, Qin Q, Huang Y, Huang X. Singapore grouper iridovirus infection counteracts poly I:C induced antiviral immune response in vitro. FISH & SHELLFISH IMMUNOLOGY 2023; 135:108685. [PMID: 36921879 DOI: 10.1016/j.fsi.2023.108685] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/07/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Groupers are important mariculture fish in South China and Southeast Asian countries. However, the increasing frequency of infectious disease outbreaks has caused great economic losses in the grouper industry. Among these pathogens, Singapore grouper iridovirus (SGIV) infection causes high mortality in larval and juvenile stages of grouper. However, the mechanism underlying the action of viral manipulation on cellular immune response still remained largely uncertain. Here, using RNA-seq technology, we investigated the regulatory roles of SGIV infection on synthetic RNA duplex poly I:C induced immune response in vitro. Using reporter gene assays, we found that SGIV infection decreased poly I:C induced interferon promoter activation. Transcriptomic analysis showed that the mRNA expression levels of 2238 genes were up-regulated, while 1247 genes were down-regulated in poly I:C transfected grouper spleen (GS) cells. Interestingly, SGIV infection decreased the expression of 1479 up-regulated genes and increased the expression of 297 down-regulated genes in poly I:C transfected cells. The differentially expressed genes (DEGs) down-regulated by SGIV were directly related to immune, inflammation and viral infection, and JUN, STAT1, NFKB1, MAPK14A, TGFB1 and MX were the 6 top hub genes in the down-regulated DEGs' protein-protein interaction (PPI) network. Furthermore, quantitative real-time PCR (qPCR) analysis confirmed that the interferon signaling and inflammatory-related genes, including cGAS, STING, TBK1, MAVS, TNF, IRAK4 and NOD2 were up-regulated by poly I:C stimulation, but all significantly down-regulated after SGIV infection. Thus, we speculated that SGIV infection counteracted poly I:C induced antiviral immune response and this ability helped itself to escape host immune surveillance. Together, our data will contribute greatly to understanding the potential immune evasion mechanism of iridovirus infection in vitro.
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Affiliation(s)
- Wenji Wang
- Lingnan Guangdong Laboratory of Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Ya Zhang
- Lingnan Guangdong Laboratory of Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Xixi Guo
- Lingnan Guangdong Laboratory of Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Weihua Xu
- Lingnan Guangdong Laboratory of Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Qiwei Qin
- Lingnan Guangdong Laboratory of Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, 519082, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, China
| | - Youhua Huang
- Lingnan Guangdong Laboratory of Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
| | - Xiaohong Huang
- Lingnan Guangdong Laboratory of Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
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Liu Q, Yuan Y, Zhu F, Hong Y, Ge R. Efficient genome editing using CRISPR/Cas9 ribonucleoprotein approach in cultured Medaka fish cells. Biol Open 2018; 7:bio.035170. [PMID: 30072445 PMCID: PMC6124564 DOI: 10.1242/bio.035170] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Gene editing with CRISPR/Cas9 is a powerful tool to study the function of target genes. Although this technology has demonstrated wide efficiency in many species, including fertilized zebrafish and medaka fish embryos when microinjected, its application to achieve efficient gene editing in cultured fish cells have met some difficulty. Here, we report an efficient and reliable approach to edit genes in cultured medaka (Oryzias latipes) fish cells using pre-formed gRNA-Cas9 ribonucleoprotein (RNP) complex. Both medaka fish haploid and diploid cells were transfected with the RNP complex by electroporation. Efficient gene editing was demonstrated by polymerase chain reaction (PCR) amplification of the target gene from genomic DNA and heteroduplex mobility assay carried out with polyacrylamide gel electrophoresis (PAGE). The heteroduplex bands caused by RNP cleavage and non-homologous end joining could be readily detected by PAGE. DNA sequencing confirmed that these heteroduplex bands contains the mutated target gene sequence. The average gene editing efficiency in haploid cells reached 50%, enabling us to generate a clonal cell line with ntrk3b gene mutation for further study. This RNP transfection method also works efficiently in diploid medaka cells, with the highest mutation efficiency of 61.5%. The specificity of this synthetic RNP CRISPR/Cas9 approach was verified by candidate off-target gene sequencing. Our result indicated that transfection of pre-formed gRNA-Cas9 RNP into fish cells is efficient and reliable to edit target genes in cultured medaka fish cells. This method will be very useful for gene function studies using cultured fish cells.
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Affiliation(s)
- Qizhi Liu
- Department of Biological Sciences, National University of Singapore, 117543, Singapore
| | - Yongming Yuan
- Department of Biological Sciences, National University of Singapore, 117543, Singapore
| | - Feng Zhu
- Department of Biological Sciences, National University of Singapore, 117543, Singapore
| | - Yunhan Hong
- Department of Biological Sciences, National University of Singapore, 117543, Singapore
| | - Ruowen Ge
- Department of Biological Sciences, National University of Singapore, 117543, Singapore
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Ozsahin E, van Oers MM, Nalcacioglu R, Demirbag Z. Protein–protein interactions among the structural proteins of Chilo iridescent virus. J Gen Virol 2018; 99:851-859. [DOI: 10.1099/jgv.0.001067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Emine Ozsahin
- Department of Biology, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Monique M. van Oers
- Wageningen University and Research, Laboratory of Virology, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Remziye Nalcacioglu
- Department of Biology, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Zihni Demirbag
- Department of Biology, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
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