Rapid generation of potent antibodies by autonomous hypermutation in yeast.

Rapid generation of potent antibodies by autonomous hypermutation in yeast.
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DOI:
10.1038/s41589-021-00832-4
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发表时间:
2021-10
影响因子:
14.8
通讯作者:
Liu CC
Liu CC
中科院分区:
生物学1区
文献类型:
--
作者:
Wellner A;McMahon C;Gilman MSA;Clements JR;Clark S;Nguyen KM;Ho MH;Hu VJ;Shin JE;Feldman J;Hauser BM;Caradonna TM;Wingler LM;Schmidt AG;Marks DS;Abraham J;Kruse AC;Liu CC

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抗体产生的主要方法仍然是动物免疫,由于体细胞超突变的强大进化过程,动物免疫可以产生异常选择性和有效的抗体克隆。然而,动物免疫本质上是缓慢的,并不总是可获得的,并且与许多抗原的相容性差。在这里,我们描述了自主超突变yEast surfAce展示(AHEAD),这是一种合成重组抗体生成技术,可以模仿工程酵母内的体细胞超突变。通过在易错正交DNA复制系统上编码抗体片段,表面展示抗体库通过酵母培养和抗原结合富集的简单循环连续突变,以在短短2周内产生高亲和力克隆。我们应用AHEAD来产生针对SARS-CoV-2 S糖蛋白、GPCR和其他靶点的有效纳米抗体,为大规模的简化抗体生成提供了模板。
The predominant approach for antibody generation remains animal immunization, which can yield exceptionally selective and potent antibody clones owing to the powerful evolutionary process of somatic hypermutation. However, animal immunization is inherently slow, not always accessible, and poorly compatible with many antigens. Here, we describe Autonomous Hypermutation yEast surfAce Display (AHEAD), a synthetic recombinant antibody generation technology that imitates somatic hypermutation inside engineered yeast. By encoding antibody fragments on an error-prone orthogonal DNA replication system, surface-displayed antibody repertoires continuously mutate through simple cycles of yeast culturing and enrichment for antigen binding to produce high-affinity clones in as little as 2 weeks. We applied AHEAD to generate potent nanobodies against the SARS-CoV-2 S glycoprotein, a GPCR, and other targets, offering a template for streamlined antibody generation at large.
DOI: 10.1038/nprot.2007.13
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