An efficient method to make human monoclonal antibodies from memory B cells: potent neutralization of SARS coronavirus.

An efficient method to make human monoclonal antibodies from memory B cells: potent neutralization of SARS coronavirus.
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DOI:
10.1038/nm1080
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发表时间:
2004-08
期刊:
影响因子:
82.9
通讯作者:
Lanzavecchia A
Lanzavecchia A
中科院分区:
医学1区
文献类型:
--
作者:
Traggiai E;Becker S;Subbarao K;Kolesnikova L;Uematsu Y;Gismondo MR;Murphy BR;Rappuoli R;Lanzavecchia A

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被动血清疗法可以立即提供针对微生物感染的保护,但快速产生人中和单克隆抗体的方法尚不可用。我们开发了一种改良的EB病毒转化人B细胞的方法。我们使用这种方法分析了一名从严重急性呼吸综合征冠状病毒(SARS-CoV)感染中恢复的患者的记忆库,并分离出对不同病毒蛋白具有特异性的单克隆抗体,其中包括35种体外中和活性范围为10− 8 M至10− 11 M的抗体。一种这样的抗体在SARS-CoV感染的小鼠模型中赋予体内保护。这些结果表明,有可能询问免疫供体的记忆库,以快速有效地分离在自然感染过程中选择的中和抗体。本文的在线版本(doi:10.1038/nm 1080)包含补充材料,可供授权用户使用。
Passive serotherapy can confer immediate protection against microbial infection, but methods to rapidly generate human neutralizing monoclonal antibodies are not yet available. We have developed an improved method for Epstein-Barr virus transformation of human B cells. We used this method to analyze the memory repertoire of a patient who recovered from severe acute respiratory syndrome coronavirus (SARS-CoV) infection and to isolate monoclonal antibodies specific for different viral proteins, including 35 antibodies with in vitro neutralizing activity ranging from 10−8M to 10−11M. One such antibody confers protection in vivo in a mouse model of SARS-CoV infection. These results show that it is possible to interrogate the memory repertoire of immune donors to rapidly and efficiently isolate neutralizing antibodies that have been selected in the course of natural infection. The online version of this article (doi:10.1038/nm1080) contains supplementary material, which is available to authorized users.
Kappa+ lambda+双受体B细胞存在于人的外围曲目中。
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