开发一种化学遗传方法来操纵细胞内pH值
Asal Ghaffari Zaki1,2, Seyed Mohammad Miri1,2, Şeyma Çimen1
1Regenerative and Restorative Medicine Research Center (REMER), Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, Istanbul 34810, Türkiye.
Journal of the American Chemical Society
|May 24, 2023
概括
通过使用一种新的酶法,对细胞中的蛋白质水平进行精确控制 (pH-Control). 这种技术可以针对细胞区进行化,为与pH不平衡相关的疾病提供新的研究途径.
科学领域:
- 生物化学
- 细胞生物学
- 神经科学
背景情况:
- 精确控制细胞内pH值对于细胞功能至关重要.
- 现有的细胞pH操纵方法在特异性和时空控制方面存在局限性.
- 细胞内pH值的变化与各种疾病有关.
研究的目的:
- 引入和验证一种新的化学遗传方法,即pH控制,用于精确的细胞内质子水平的时空控制.
- 为了证明pH-Control在特定细胞区的酸化中的有效性.
- 建立pH控制作为研究与pH失调相关的疾病的工具.
主要方法:
- 开发一种基于基质的酶法 (pH控制) 用于向细胞酸化.
- 使用基因编码的生物传感器SypHer3s监测pH值变化.
- 在β-chloro-d-alanine的存在下,在培养细胞系和初级神经元中应用pH-Control.
主要成果:
- pH-Control成功实现了超局部酸化的精确时空控制.
- 在细胞质,线粒体和核区中观察到酸化.
- 这种效应与β- - d- 氨酸的存在有关,并表现出度依赖的活性.
- 没有观察到对整体细胞活力的显著异位影响.
结论:
- pH-Control是一种强大且多功能化基因工具,用于高精度操纵细胞内pH值.
- 这种方法可以针对细胞过程中局部pH变化的功能后果进行有针对性的研究.
- 对于超局部pH不平衡的疾病的研究,pH控制具有显著的前景.
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