Generation of Synthetic Acinetobacter baumannii-Specific Nanobodies.

Generation of Synthetic Acinetobacter baumannii-Specific Nanobodies.
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合成鲍曼不动杆菌特异性纳米抗体的制备。

DOI:
10.1021/acsinfecdis.3c00024
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发表时间:
2023-06-09
影响因子:
5.3
通讯作者:
Davies, Bryan W.
Davies, Bryan W.
中科院分区:
医学2区
文献类型:
--
作者:
Knauf, Gregory A.;Groover, Kyra E.;O'Donnell, Angela C.;Davies, Bryan W.

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细菌病原体鲍曼不动杆菌是耐药感染的主要原因。在这里,我们研究了开发能够识别鲍曼不动杆菌而不是其他革兰氏阴性细菌的纳米抗体的潜力。通过合成纳米抗体库的生成和淘选,我们确定了几种潜在的先导候选物。我们展示了下一代测序分析的结合如何帮助选择主要候选纳米抗体。使用单克隆噬菌体展示,我们验证了铅纳米抗体与鲍曼不动杆菌的结合。随后的纯化和生化表征揭示了一种特别坚固的纳米抗体,与其他常见的耐药病原体相比,它可以特异性结合选定的鲍曼不动杆菌菌株。这些发现支持纳米抗体选择性靶向鲍曼不动杆菌的潜力,并确定未来研究的主要候选者。
The bacterial pathogen Acinetobacter baumannii is a leading cause of drug-resistant infections. Here, we investigated the potential of developing nanobodies that can recognize A. baumannii over other Gram-negative bacteria. Through generation and panning of a synthetic nanobody library, we identified several potential lead candidates. We demonstrate how incorporation of next-generation sequencing analysis can aid in the selection of lead candidate nanobodies. Using monoclonal phage display, we validated the binding of lead nanobodies to A. baumannii. Subsequent purification and biochemical characterization revealed one particularly robust nanobody that specifically bound select A. baumannii strains compared to other common drug-resistant pathogens. These findings support the potential for nanobodies to selectively target A. baumannii and the identification of lead candidates for future investigation.
DOI: 10.1016/s0140-6736(21)02724-0
发表时间: 2022-02-12
期刊: Lancet (London, England)
影响因子: --
作者:
Antimicrobial Resistance Collaborators
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发表时间: 2019-02-01
影响因子: 4
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