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用于O₂和反应性O₂物种的光检测的基因编码生物传感器

Marialaura Marchetti¹, Luca Ronda^1,2, Monica Cozzi¹

¹Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy.

Sensors (Basel, Switzerland)

|October 28, 2023

概括

基因编码的生物传感器可以实时监测细胞内氧和活性氧物种 (ROS). 这些基于光蛋白质的工具通过检测氧气或ROS波动,提供了对细胞健康和疾病的洞察.

科学领域:

生物医学工程生物医学工程
细胞生物学细胞生物学
生物化学生化学

背景情况:

细胞内氧和活性氧物种 (ROS) 水平对于理解细胞生理和病理状态至关重要.
对这些分析物的实时监测对于生物研究和诊断至关重要.
遗传编码的光蛋白广泛用于感知细胞微环境.

研究的目的:

提供对氧和ROS的基因编码生物传感器的全面概述.
讨论使用光蛋白进行氧气和ROS检测的基本机制.
突出这些生物传感器在生物研究中的应用.

主要方法:

对基因编码氧和ROS生物传感器的现有文献的审查.
分析涉及蛋白质-配体相互作用和化学反应的传感机制.
生物传感器根据其检测目标 (氧气或ROS) 和操作原则进行分类.

主要成果:

氧气感应机制包括缺氧诱导因子 (HIF-1) 降解,依赖氧气的光体成熟,以及直接与化蛋白结合的氧气结合.
ROS感应利用ROS诱导的二硫化物键形成和ROS感应领域的构造变化.
光蛋白变体和融合伙伴是这些生物传感器设计的关键组成部分.

结论:

基因编码的生物传感器为实时细胞内氧气和ROS测量提供了强大的工具.
已经开发出多种机制来选择性和敏感地检测这些关键的细胞分析物.
这些生物传感器显著推进了对细胞过程和疾病机制的研究.

关键词:

光蛋白质是一种光蛋白质.它们是基因编码的.氧气传感器是一种氧气传感器.有活性氧物种的反应性氧物种.

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