Direct-MS analysis of antibody-antigen complexes.

Direct-MS analysis of antibody-antigen complexes.
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DOI:
10.1002/pmic.202000300
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发表时间:
2021-11
期刊:
影响因子:
3.4
通讯作者:
Sharon M
Sharon M
中科院分区:
生物学3区
文献类型:
--
作者:
Vimer S;Ben-Nissan G;Marty M;Fleishman SJ;Sharon M

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近几十年来,抗体(Abs)由于其治疗特性和结合多种抗原的多功能性而引起了学术界和生物制药行业的关注。为了优化Ab的特异性、有效性、亲和力、稳定性和产量,已经开发了不同的工程策略,从而实现了筛选候选先导物的系统筛选和分析程序。这种质量评估是至关重要的,但通常需要耗时和劳动密集的净化程序。在这里,我们利用直接质谱(direct-MS)方法,直接从粗培养基中进行分析,对设计的抗体进行快速的结构表征。我们证明了稳定性、特异性和与抗原的相互作用等特性可以被定义,而无需事先纯化。这个泰。
In recent decades, antibodies (Abs) have attracted the attention of academia and the biopharmaceutical industry due to their therapeutic properties and versatility in binding a vast spectrum of antigens. Different engineering strategies have been developed for optimizing Ab specificity, efficacy, affinity, stability and production, enabling systematic screening and analysis procedures for selecting lead candidates. This quality assessment is critical but usually demands time-consuming and labor-intensive purification procedures. Here, we harnessed the direct-mass spectrometry (direct-MS) approach, in which the analysis is carried out directly from the crude growth media, for the rapid, structural characterization of designed Abs. We demonstrate that properties such as stability, specificity and interactions with antigens can be defined, without the need for prior purification. This ty.
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