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[交流] Nanobody-based recombinant antivenom for cobra, mamba and rinkhals bites 已有2人参与

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

针对眼镜蛇、曼巴与唾蛇咬伤的基于纳米抗体重组抗蛇毒血清

▲ 作者:Shirin Ahmadi, Nick J. Burlet et al.

▲链接:

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

▲摘要:

研究者采用18种毒蛇(含曼巴蛇、眼镜蛇与唾蛇)的毒液对羊驼和大羊驼进行免疫,构建噬菌体展示文库并筛选出高亲和力广谱中和性纳米抗体。

他们将其中8种纳米抗体配伍成精确定义的寡克隆混合物,成功研制出能中和7个毒素家族/亚家族的多价重组抗蛇毒血清。该血清在体内实验中可有效抵御17种非洲眼镜蛇科毒蛇的致死毒性,并对所有测试的细胞毒性毒液所致皮肤坏死产生显著抑制效果。

这种重组抗蛇毒血清的效能优于现行血浆源性抗蛇毒血清,有望为非洲大陆所有医学相关眼镜蛇科毒蛇咬伤提供全面防护方案。

▲ Abstract:

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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滴滴Grace合肽库

金虫 (正式写手)


小木虫: 金币+0.5, 给个红包,谢谢回帖
ദ്്ദി˶˃ ˂ )✧顶顶,厉害厉害
强耀生物call159~2196~2342-多肽引物蛋白抗体定制服务,含肽库/阵列/互作/测序等
2楼2025-11-24 12:40:24
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lubenle

至尊木虫 (著名写手)


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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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