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[½»Á÷] Nanobody-based recombinant antivenom for cobra, mamba and rinkhals bites ÒÑÓÐ2È˲ÎÓë

Nanobody-based recombinant antivenom for cobra, mamba and rinkhals bites

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¡ø ×÷ÕߣºShirin Ahmadi, Nick J. Burlet et al.

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https://www.nature.com/articles/s41586-025-09661-0

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Here we addressed this challenge by immunizing an alpaca and a llama with the venoms of 18 different snakes, including mambas, cobras and a rinkhals, constructing phage display libraries, and identifying high-affinity broadly neutralizing nanobodies. We combined eight of these nanobodies into a defined oligoclonal mixture, resulting in an experimental polyvalent recombinant antivenom that was capable of neutralizing seven toxin families or subfamilies. This antivenom effectively prevented venom-induced lethality in vivo across 17 African elapid snake species and markedly reduced venom-induced dermonecrosis for all tested cytotoxic venoms. The recombinant antivenom performed better than a currently used plasma-derived antivenom and therefore shows considerable promise for comprehensive, continent-wide protection against snakebites by all medically relevant African elapids.
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Nanobody-based recombinant antivenom for cobra, mamba and rinkhals bites

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  • 2026-01-21 11:56:07, 28.7 M
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