PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Antigenicity and Immunogenicity of Three Synthetic Peptides Derived from Predicted B Cell Epitopes of Nervous Necrosis Virus (Nnv) in Asian Seabass (Lates Calcarifer)
Version 1
: Received: 8 November 2022 / Approved: 9 November 2022 / Online: 9 November 2022 (01:57:35 CET)
How to cite:
Jungi, S.V.; Machimbirike, V.I.; Linh, N.V.; Sangsuriya, P.; Salin, K.R.; Senapin, S.; Dong, H.T. Antigenicity and Immunogenicity of Three Synthetic Peptides Derived from Predicted B Cell Epitopes of Nervous Necrosis Virus (Nnv) in Asian Seabass (Lates Calcarifer). Preprints2022, 2022110163. https://doi.org/10.20944/preprints202211.0163.v1
Jungi, S.V.; Machimbirike, V.I.; Linh, N.V.; Sangsuriya, P.; Salin, K.R.; Senapin, S.; Dong, H.T. Antigenicity and Immunogenicity of Three Synthetic Peptides Derived from Predicted B Cell Epitopes of Nervous Necrosis Virus (Nnv) in Asian Seabass (Lates Calcarifer). Preprints 2022, 2022110163. https://doi.org/10.20944/preprints202211.0163.v1
Jungi, S.V.; Machimbirike, V.I.; Linh, N.V.; Sangsuriya, P.; Salin, K.R.; Senapin, S.; Dong, H.T. Antigenicity and Immunogenicity of Three Synthetic Peptides Derived from Predicted B Cell Epitopes of Nervous Necrosis Virus (Nnv) in Asian Seabass (Lates Calcarifer). Preprints2022, 2022110163. https://doi.org/10.20944/preprints202211.0163.v1
APA Style
Jungi, S.V., Machimbirike, V.I., Linh, N.V., Sangsuriya, P., Salin, K.R., Senapin, S., & Dong, H.T. (2022). Antigenicity and Immunogenicity of Three Synthetic Peptides Derived from Predicted B Cell Epitopes of Nervous Necrosis Virus (Nnv) in Asian Seabass (<i>Lates Calcarifer</i>). Preprints. https://doi.org/10.20944/preprints202211.0163.v1
Chicago/Turabian Style
Jungi, S.V., Saengchan Senapin and Ha Thanh Dong. 2022 "Antigenicity and Immunogenicity of Three Synthetic Peptides Derived from Predicted B Cell Epitopes of Nervous Necrosis Virus (Nnv) in Asian Seabass (<i>Lates Calcarifer</i>)" Preprints. https://doi.org/10.20944/preprints202211.0163.v1
Abstract
Nervous necrosis virus (NNV) has spread throughout the world, affecting more than 120 freshwater and marine fish species. While vaccination effectively prevents disease outbreaks, the difficulty of producing sufficient viruses using cell lines continues to be a significant disadvantage for producing inactivated vaccines. This study, therefore, explored the application of synthetic peptides as potential vaccine candidates for the prevention of NNV in Asian seabass (Lates calcarifer). Using the epitope prediction tool and molecular docking, three predicted immunogenic B cell epitopes (30-32 aa) derived from NNV coat protein were selected and synthesised, corresponding to amino acid positions 5 to 34 (P1), 133 to 162 (P2) and 181 to 212 (P3). All the predicted peptides interact with Asian sea bass’s MHC class II by docking. The antigenicity of these peptides was determined through ELISA and all peptides were able to react with NNV-specific antibodies. Subsequently, the immunogenicity of these synthetic peptides was investigated by immunisation of Asian seabass with individual peptides (30 μg/fish) and a peptide cocktail (P1+P2+P3, 10 μg each/fish) by intraperitoneal injection, followed by a booster dose at day 28 post-primary immunisation. There was a subset of immunised fish that were able to induce upregulation of CD4 in the head kidney and spleen. Importantly, antibodies derived from fish immunised with synthetic peptides reacted with whole NNV virions. Taken together, these findings indicate that synthetic linear peptides based on predicted B cell epitopes exhibited both antigenic and immunogenic properties, suggesting that they could be potential vaccine candidates for the prevention of NNV in fish.
Keywords
NNV; synthetic peptides; Asian seabass; antigenicity; immunogenicity
Subject
Biology and Life Sciences, Immunology and Microbiology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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