设计的蛋白质逻辑以精确的表面抗原组合为目标
Marc J Lajoie1,2, Scott E Boyken3,2, Alexander I Salter4,5
1Institute for Protein Design, University of Washington, Seattle, WA, USA. mlajoie@lyell.com dabaker@uw.edu.
概括
研究人员开发了依赖同位素的蛋白开关 (Co-LOCKR) 以精确地准细胞. 这些工程蛋白质执行布尔逻辑运算,使 AND,OR 和 NOT 功能能够用于先进的细胞计算和向治疗.
科学领域:
- 生物化学
- 合成生物学
- 免疫学
背景情况:
- 由于缺乏独特的表面标记,哺乳动物细胞的识别是复杂的.
- 针对特定的细胞群体需要超出单一标记者识别的方法.
研究的目的:
- 设计能够执行布尔逻辑操作 (AND,OR,NOT) 的基于蛋白质的新型交换机.
- 在复杂的生物系统中实现精确的,独立于转录的细胞反应.
- 证明这些开关在针对癌症治疗的T细胞特异性的重定向中的应用.
主要方法:
- 协同定位依赖蛋白开关 (Co-LOCKR) 的设计和工程.
- 实现 Co-LOCKR 系统以执行 AND,OR 和 NOT 逻辑门.
- Co-LOCKR用于针对具有特定表面抗原组合的瘤细胞的重定向.
主要成果:
- Co-LOCKR 交换机成功执行了 AND,OR 和 NOT 布尔逻辑操作.
- 工程 AND 门使T细胞能够准表达双抗原的瘤细胞,同时避免单抗原细胞.
- 三个输入开关集成的NOT或OR逻辑以根据额外的抗原存在来改进细胞向.
结论:
- 新设计的蛋白质可以在细胞表面执行计算逻辑.
- Co-LOCKR技术为精确的细胞向和治疗应用提供了一个多功能平台.
- 这种方法可以将多个绑定事件复杂集成到一个单一的功能输出中.
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