Abstract
Key message
Expression of dengue-2 virus NS1 protein in Nicotiana tabacum plants for development of dengue immunodiagnostic kits.
Abstract
Dengue is one of the most important diseases caused by arboviruses in the world. A significant increase in its geographical distribution has been noticed over the last 20 years, with continuous transmission of several serotypes and emergence of the hemorrhagic fever in areas where the disease was previously not prevalent. Although the methodological processes for dengue diagnosis are in deep development and improvement, a limitation for the realization of dengue diagnostic tests is the difficulty of large-scale production of the antigen to be used in diagnostic tests. Due to this demand, the purpose of this study was to obtain the non-structural protein 1 (NS1) from dengue-2 serotype by heterologous expression in Nicotiana tabacum (Havana). After confirmation of the NS1 protein gene integration in the plant genome, the heterologous protein was characterized using SDS-PAGE and immunoblotting. In an immunoenzymatic test, the recombinant NS1 protein presents an antigen potential for development of dengue immunodiagnostic kits.
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Abbreviations
- C:
-
Capsid protein
- cDNA:
-
Complementar DNA
- DENV:
-
Dengue virus
- E:
-
Envelope protein
- ELISA:
-
Enzyme Linked Immuno Sorbent Assay
- IgG:
-
Immunoglobulin G
- IgM:
-
Immunoglobulin M
- kDa:
-
Kilodalton
- NS1:
-
Non structural protein 1
- NS2a:
-
Non-structural protein 2a
- NS2b:
-
Non-structural protein 2b
- NS3:
-
Non-structural protein 3
- NS4a:
-
Non-structural protein 4a
- NS4b:
-
Non-structural protein 4b
- NS5:
-
Non-structural protein 5
- PCR:
-
Polymerase chain reaction
- PFU:
-
Plaque formation unit
- prM:
-
Pre-membrane protein
- ROC:
-
Receiver operating characteristic
- RT-PCR:
-
Reverse transcription polymerase chain reaction
- SDS-PAGE:
-
Sodium dodecyl sulfate-polyacrylamide gel electrophoresis
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Acknowledgments
This work was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil (Pronex Grant # 550165/2010-0 and INCT Dengue Grant # 471221/2008-2) and by Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG).
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The authors declare that they have no competing interests.
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Amaro, M.O.F., Xisto, M.F., Dias, A.C.F. et al. Antigen production using heterologous expression of dengue virus-2 non-structural protein 1 (NS1) in Nicotiana tabacum (Havana) for immunodiagnostic purposes. Plant Cell Rep 34, 919–928 (2015). https://doi.org/10.1007/s00299-015-1753-5
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DOI: https://doi.org/10.1007/s00299-015-1753-5