合成的G蛋白合受体用于可编程的细胞行为传感和控制
bioRxiv : the preprint server for biology
|April 25, 2024
概括
研究人员开发了可编程抗原导入的G蛋白合工程受体 (PAGERs),用于精确的细胞控制. 这些合成受体检测抗原并激活细胞过程,推进治疗和药物发现.
科学领域:
- 合成生物学 合成生物学
- 分子工程是分子工程.
- 蜂信号传输是如何进行的
背景情况:
- 像CARs这样的既定合成受体在检测可溶性抗原和控制细胞输出方面存在局限性.
- 现有的技术缺乏精确的,内置的药物控制机制,用于抗原介导反应.
研究的目的:
- 设计新型合成G蛋白合受体 (GPCRs),用于抗原依赖的细胞过程控制.
- 开发一个模块化平台,可编程抗原接G蛋白结合工程受体 (PAGERs),用于广泛的治疗和研究应用.
主要方法:
- 工程化GPCR支架与化纳米体和条件自抑制域.
- 通过缓解抗原结合时的自身抑制来实现模块化抗原门,从而使药物诱导的受体激活.
- 创建了对各种可溶性和细胞表面抗原反应的PAGER.
主要成果:
- 证明了PAGERs对十几种生物相关抗原的反应能力.
- 展示了PAGERs驱动各种细胞输出的能力,包括转基因表达,光和内源G蛋白信号传递 (Ca2+,脂质,cAMP,神经元活动).
- 建立了一个模块化和可通用的平台,用于合成受体设计.
结论:
- PAGER为抗原特异性细胞控制提供了一种多功能工具,克服了现有技术的局限性.
- 该平台的模块化和广泛适用性预计将对药物发现和翻译科学产生重大影响.
- 帕格能够精确地操纵细胞功能,以应对用户定义的抗原.
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