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Ng YS, Chen CY, Cheng SW, Tan YK, Lin SS, Senapin S, Sangsuriya P, Wang HC. WSSV early protein WSSV004 enhances viral replication by suppressing LDH activity. Int J Biol Macromol 2024; 271:132482. [PMID: 38763244 DOI: 10.1016/j.ijbiomac.2024.132482] [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: 04/02/2024] [Revised: 05/08/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
White spot syndrome virus (WSSV) is known to upregulate glycolysis to supply biomolecules and energy for the virus's replication. At the viral genome replication stage, lactate dehydrogenase (LDH), a glycolytic enzyme, shows increased activity without any increase in expression. In the present study, yeast 2-hybrid screening was used to identify WSSV proteins that interacted with LvLDH isoform 1 and 2, and these included the WSSV early protein WSSV004. The interaction between WSSV004 and LvLDH1/2 was confirmed by co-immunoprecipitation. Immunofluorescence showed that WSSV004 co-localized with LvLDH1/2 in the cytoplasm. dsRNA silencing experiments showed that WSSV004 was crucial for WSSV replication. However, although WSSV004 silencing led to the suppression of total LvLDH gene expression during the viral late stage, there was nevertheless a significant increase in LvLDH activity at this time. We also used affinity purification-mass spectrometry to identify cellular proteins that interact with WSSV004, and found a total of 108 host proteins and 3 WSSV proteins with which it potentially interacts. Bioinformatics analysis revealed that WSSV004 and its interacting proteins might be responsible for various biological pathways during infection, including vesicular transport machinery and RNA-related functions. Collectively, our study suggests that WSSV004 serves as a multifunctional modulator to facilitate WSSV replication.
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Affiliation(s)
- Yen Siong Ng
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Cong-Yan Chen
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Shu-Wen Cheng
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Yu Kent Tan
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Shih-Shun Lin
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Saengchan Senapin
- Fish Health Platform, Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand; National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Pakkakul Sangsuriya
- Aquatic Molecular Genetics and Biotechnology Research Team, BIOTEC, NSTDA, Pathum Thani, Thailand
| | - Han-Ching Wang
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Tainan, Taiwan; International Center for Scientific Development of Shrimp Aquaculture, National Cheng Kung University, Tainan, Taiwan.
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Cox N, De Swaef E, Corteel M, Van Den Broeck W, Bossier P, Nauwynck HJ, Dantas-Lima JJ. Experimental Infection Models and Their Usefulness for White Spot Syndrome Virus (WSSV) Research in Shrimp. Viruses 2024; 16:813. [PMID: 38793694 PMCID: PMC11125927 DOI: 10.3390/v16050813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
White spot syndrome virus (WSSV) is marked as one of the most economically devastating pathogens in shrimp aquaculture worldwide. Infection of cultured shrimp can lead to mass mortality (up to 100%). Although progress has been made, our understanding of WSSV's infection process and the virus-host-environment interaction is far from complete. This in turn hinders the development of effective mitigation strategies against WSSV. Infection models occupy a crucial first step in the research flow that tries to elucidate the infectious disease process to develop new antiviral treatments. Moreover, since the establishment of continuous shrimp cell lines is a work in progress, the development and use of standardized in vivo infection models that reflect the host-pathogen interaction in shrimp is a necessity. This review critically examines key aspects of in vivo WSSV infection model development that are often overlooked, such as standardization, (post)larval quality, inoculum type and choice of inoculation procedure, housing conditions, and shrimp welfare considerations. Furthermore, the usefulness of experimental infection models for different lines of WSSV research will be discussed with the aim to aid researchers when choosing a suitable model for their research needs.
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Affiliation(s)
- Natasja Cox
- IMAQUA, 9080 Lochristi, Belgium; (E.D.S.); (M.C.); (J.J.D.-L.)
- Laboratory of Virology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
| | | | - Mathias Corteel
- IMAQUA, 9080 Lochristi, Belgium; (E.D.S.); (M.C.); (J.J.D.-L.)
| | - Wim Van Den Broeck
- Department of Morphology, Medical Imaging, Orthopedics, Physiotherapy and Nutrition, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
| | - Peter Bossier
- Laboratory of Aquaculture & Artemia Reference Center, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium;
| | - Hans J. Nauwynck
- Laboratory of Virology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
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Kawato S, Nozaki R, Kondo H, Hirono I. Integrase-associated niche differentiation of endogenous large DNA viruses in crustaceans. Microbiol Spectr 2024; 12:e0055923. [PMID: 38063384 PMCID: PMC10871703 DOI: 10.1128/spectrum.00559-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 11/15/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE Crustacean genomes harbor sequences originating from a family of large DNA viruses called nimaviruses, but it is unclear why they are present. We show that endogenous nimaviruses selectively insert into repetitive sequences within the host genome, and this insertion specificity was correlated with different types of integrases, which are DNA recombination enzymes encoded by the nimaviruses themselves. This suggests that endogenous nimaviruses have colonized various genomic niches through the acquisition of integrases with different insertion specificities. Our results point to a novel survival strategy of endogenous large DNA viruses colonizing the host genomes. These findings may clarify the evolution and spread of nimaviruses in crustaceans and lead to measures to control and prevent the spread of pathogenic nimaviruses in aquaculture settings.
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Affiliation(s)
- Satoshi Kawato
- Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Reiko Nozaki
- Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Hidehiro Kondo
- Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Ikuo Hirono
- Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan
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Cox N, De Swaef E, Corteel M, Van Den Broeck W, Bossier P, Dantas-Lima JJ, Nauwynck HJ. The Way of Water: Unravelling White Spot Syndrome Virus (WSSV) Transmission Dynamics in Litopenaeus vannamei Shrimp. Viruses 2023; 15:1824. [PMID: 37766231 PMCID: PMC10534367 DOI: 10.3390/v15091824] [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: 07/29/2023] [Revised: 08/23/2023] [Accepted: 08/27/2023] [Indexed: 09/29/2023] Open
Abstract
White spot disease (WSD) is a severe viral threat to the global shrimp aquaculture industry. However, little is known about white spot syndrome virus (WSSV) transmission dynamics. Our aim was to elucidate this in Litopenaeus vannamei using peroral in vivo WSSV challenge experiments. We demonstrated that WSD progression was rapid and irreversible, leading to death within 78 h. Viral DNA shedding was detected within 6 h of disease onset. This shedding intensified over time, reaching a peak within 12 h of the time of death. Isolating shrimp (clinically healthy and diseased) from infected populations at different time points post-inoculation showed that host-to-host WSSV transmission was occurring around the time of death. Exposing sentinels to environmental components (i.e., water, feces, molts) collected from tanks housing WSSV-infected shrimp resulted in a significantly (p-value < 0.05) increased infection risk after exposure to water (1.0) compared to the risk of infection after exposure to feces (0.2) or molts (0.0). Furthermore, ingestion of WSSV-infected tissues (cannibalism) did not cause a significantly higher number of WSD cases compared to immersion in water in which the same degree of cannibalism had taken place.
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Affiliation(s)
- Natasja Cox
- IMAQUA, 9080 Lochristi, Belgium; (E.D.S.); (M.C.); (J.J.D.-L.)
- Laboratory of Virology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
| | | | - Mathias Corteel
- IMAQUA, 9080 Lochristi, Belgium; (E.D.S.); (M.C.); (J.J.D.-L.)
| | - Wim Van Den Broeck
- Department of Morphology, Medical Imaging, Orthopedics, Physiotherapy and Nutrition, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
| | - Peter Bossier
- Laboratory of Aquaculture & Artemia Reference Center, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium;
| | | | - Hans J. Nauwynck
- Laboratory of Virology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
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van Oers MM, Herniou EA, Jehle JA, Krell PJ, Abd-Alla AMM, Ribeiro BM, Theilmann DA, Hu Z, Harrison RL. Developments in the classification and nomenclature of arthropod-infecting large DNA viruses that contain pif genes. Arch Virol 2023; 168:182. [PMID: 37322175 PMCID: PMC10271883 DOI: 10.1007/s00705-023-05793-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Viruses of four families of arthropod-specific, large dsDNA viruses (the nuclear arthropod large DNA viruses, or NALDVs) possess homologs of genes encoding conserved components involved in the baculovirus primary infection mechanism. The presence of such homologs encoding per os infectivity factors (pif genes), along with their absence from other viruses and the occurrence of other shared characteristics, suggests a common origin for the viruses of these families. Therefore, the class Naldaviricetes was recently established, accommodating these four families. In addition, within this class, the ICTV approved the creation of the order Lefavirales for three of these families, whose members carry homologs of the baculovirus genes that code for components of the viral RNA polymerase, which is responsible for late gene expression. We further established a system for the binomial naming of all virus species in the order Lefavirales, in accordance with a decision by the ICTV in 2019 to move towards a standardized nomenclature for all virus species. The binomial species names for members of the order Lefavirales consist of the name of the genus to which the species belongs (e.g., Alphabaculovirus), followed by a single epithet that refers to the host species from which the virus was originally isolated. The common names of viruses and the abbreviations thereof will not change, as the format of virus names lies outside the remit of the ICTV.
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Affiliation(s)
- Monique M van Oers
- Laboratory of Virology, Wageningen University and Research, Wageningen, the Netherlands.
| | - Elisabeth A Herniou
- Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS - University of Tours, 37200, Tours, France
| | - Johannes A Jehle
- Institute for Biological Control, Julius Kühn-Institut, 69221, Dossenheim, Germany
| | - Peter J Krell
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, N1G 2W1, Canada
| | - Adly M M Abd-Alla
- Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, Vienna International Centre, Vienna, Austria
| | - Bergmann M Ribeiro
- Laboratory of Baculovirus, Cell Biology Department, University of Brasília, Brasília, Brazil
| | - David A Theilmann
- Summerland Research and Development Centre, Agriculture and Agri-Food Canada, 4200 Highway 97, Box 5000, Summerland, BC, V0H1Z0, Canada
| | - Zhihong Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, P. R. China
| | - Robert L Harrison
- Invasive Insect Biocontrol and Behavior Laboratory, USDA-ARS, 10300 Baltimore Avenue, Bldg 007 Barc‑West, Beltsville, MD, 20705, USA
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Kawato S, Fujishima S, Nozaki R, Kondo H, Isshiki T, Hirono I. Genome sequence of Chionoecetes opilio bacilliform virus, a nimavirus infecting the snow crab Chionoecetes opilio. Arch Virol 2023; 168:101. [PMID: 36871238 DOI: 10.1007/s00705-023-05731-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/02/2023] [Indexed: 03/06/2023]
Abstract
Nimaviridae (class Naldaviricetes) is a family of double-stranded DNA viruses infecting crustaceans, with the only officially recognized representative being white spot syndrome virus (WSSV). Chionoecetes opilio bacilliform virus (CoBV) was isolated as the causative agent of milky hemolymph disease in the snow crab Chionoecetes opilio, an economically important crustacean in the northwestern Pacific. Here, we present the complete genome sequence of CoBV and show that it is unambiguously a nimavirus. The CoBV genome is a 240-kb circular DNA molecule with 40% GC content that encodes 105 proteins, including 76 WSSV orthologs. Phylogenetic analysis based on eight naldaviral core genes established that CoBV is a member of the family Nimaviridae. The availability of the CoBV genome sequence provides a deeper understanding of CoBV pathogenicity and nimavirus evolution.
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Affiliation(s)
- Satoshi Kawato
- Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Shoya Fujishima
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie, Japan
| | - Reiko Nozaki
- Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Hidehiro Kondo
- Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Tadashi Isshiki
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie, Japan.
| | - Ikuo Hirono
- Laboratory of Genome Science, Tokyo University of Marine Science and Technology, Tokyo, Japan.
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