一只人类化的小鼠,骑着成熟的类交换,高突变和中和抗体反应
Daniel P Chupp1,2, Carlos E Rivera1, Yulai Zhou1
1The Antibody Laboratory, Department of Microbiology, Immunology & Molecular Genetics, The University of Texas Long School of Medicine, San Antonio, TX, USA.
Nature immunology
|June 25, 2024
概括
新的THX小鼠模型成功地复制了人类的免疫反应,包括抗体产生和细胞因子释放,为疫苗和治疗开发提供了宝贵的工具.
科学领域:
- 免疫学 免疫学 免疫学
- 移植生物学 移植生物学
- 鼠标模型的模型
背景情况:
- 人性化小鼠对于研究人类免疫力至关重要,但往往缺乏强大的抗体反应.
- 现有的模型很难完全回顾人类B细胞和T细胞功能的复杂性.
研究的目的:
- 开发一种改进的人性化小鼠模型 (THX),能够模拟人类抗体反应.
- 评估THX小鼠建立T细胞依赖和T细胞独立抗体反应的能力.
- 评估THX小鼠对疫苗和治疗开发的有用性.
主要方法:
- 用人类带血CD34+细胞移植免疫缺陷小鼠.
- 利用17β-雌二醇调节来增强免疫细胞的分化.
- 疫苗接种后或挑战后评估免疫复原,抗体产生和细胞因子概况.
主要成果:
- THX小鼠证明了人类淋巴状和髓状系统的复合,包括关键的B和T细胞群体和淋巴状结构.
- 这些小鼠表现出多样化的人类抗原受体谱,并建立了成熟的T细胞依赖和T细胞独立的抗体反应.
- 接种疫苗后,THX小鼠产生了针对沙门氏菌和SARS-CoV-2的中和抗体,并释放了生理细胞因子.
结论:
- THX小鼠为研究人类适应性免疫,特别是抗体反应提供了一个强大的平台.
- 该模型支持B细胞成熟,体变异和类切换重组.
- THX小鼠适用于人类疫苗和免疫调节疗法的临床前评估.
相关概念视频
Mouse Models of Cancer Study
5.5K
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
5.5K
Hybridoma Technology
14.4K
Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
14.4K


