In Vitro Nanobody Library Construction by Using Gene Designated-Region Pan-Editing Technology.
In Vitro Nanobody Library Construction by Using Gene Designated-Region Pan-Editing Technology.
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利用基因指定区域泛编辑技术构建体外纳米抗体文库
DOI:
10.34133/2022/9823578
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发表时间:
2022
影响因子:
--
通讯作者:
Zhu W
中科院分区:
文献类型:
--
作者:
Niu Z;Luo Z;Sun P;Ning L;Jin X;Chen G;Guo C;Zhi L;Chang W;Zhu W
Camelid single-domain antibody fragments (nanobodies) are an emerging force in therapeutic biopharmaceuticals and clinical diagnostic reagents in recent years. Nearly all nanobodies available to date have been obtained by animal immunization, a bottleneck restricting the large-scale application of nanobodies. In this study, we developed three kinds of gene designated-region pan-editing (GDP) technologies to introduce multiple mutations in complementarity-determining regions (CDRs) of nanobodies in vitro. Including the integration of G-quadruplex fragments in CDRs, which induces the spontaneous multiple mutations in CDRs; however, these mutant sequences are highly similar, resulting in a lack of sequences diversity in the CDRs. We also used CDR-targeting traditional gRNA-guided base-editors, which effectively diversify the CDRs. And most importantly, we developed the self-assembling gRNAs, which are generated by reprogrammed tracrRNA hijacking of endogenous mRNAs as crRNAs. Using base-editors guided by self-assembling gRNAs, we can realize the iteratively diversify the CDRs. And we believe the last GDP technology is highly promising in immunization-free nanobody library construction, and the full development of this novel nanobody discovery platform can realize the synthetic evolution of nanobodies in vitro.
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影响因子:
64.8
作者:
Komor AC;Kim YB;Packer MS;Zuris JA;Liu DR
通讯作者:
Liu DR
影响因子:
64.8
作者:
Deltcheva, Elitza;Chylinski, Krzysztof;Sharma, Cynthia M.;Gonzales, Karine;Chao, Yanjie;Pirzada, Zaid A.;Eckert, Maria R.;Vogel, Joerg;Charpentier, Emmanuelle
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Charpentier, Emmanuelle
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4.8
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16.8
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通讯作者:
Kruse AC
影响因子:
6.8
作者:
Adams, Jarrett J.;Sidhu, Sachdev S.
通讯作者:
Sidhu, Sachdev S.