Title | Characterisation of two snake toxin-targeting human monoclonal immunoglobulin G antibodies expressed in tobacco plants |
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Type | Journal article |
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Authors | Catherine M. Moore, Anne Ljungars, Matthew J. Paul, Camilla Holst Dahl, Shirin Ahmadi, Anna Christina Adams, Lise Marie Grav, Sanne Schoffelen, Bjørn Gunnar Voldborg, Andreas Hougaard Laustsen and Julian K-C Ma |
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Abstract | Current snakebite antivenoms are based on polyclonal animal-derived antibodies, which can neutralize snake venom toxins in envenomed victims, but which are also associated with adverse reactions. Therefore, several efforts within antivenom research aim to explore the utility of recombinant monoclonal antibodies, such as human immunoglobulin G (IgG) antibodies, which are routinely used in the clinic for other indications. In this study, the feasibility of using tobacco plants as bioreactors for expressing full-length human monoclonal IgG antibodies against snake toxins was investigated. We show that the plant-produced antibodies perform similarly to their mammalian cell-expressed equivalents in terms of in vitro binding. Complete neutralization was achieved by both the plant and mammalian cell-produced anti-α-cobratoxin antibody. The feasibility of using plant-based expression systems may potentially make it easier for laboratories in resource-poor settings to work with human monoclonal IgG antibodies. |
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Article number | 107225 |
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Journal | Toxicon |
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Journal citation | 232 |
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ISSN | 0041-0101 |
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| 1879-3150 |
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Year | 2023 |
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Publisher | Elsevier |
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Accepted author manuscript | |
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Publisher's version | License CC BY 4.0 File Access Level Open (open metadata and files) |
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Digital Object Identifier (DOI) | https://doi.org/10.1016/j.toxicon.2023.107225 |
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Web address (URL) | https://doi.org/10.1016/j.toxicon.2023.107225 |
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Publication dates |
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Published online | 11 Jul 2023 |
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Funder | Villum Foundation |
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| European Research Council |
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| Wellcome |
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| Novo Nordisk Foundation |
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