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A color-tailored fluorogenic sensor for hydrogen peroxide

delete2025-10-16
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PRE
AI
E
Ekaterina Potekhina
D
Dina I. Bass
D
Daria Ezeriņa
D
Daria D. Fleckenstein
A
Artem S. Chebotarev
В
В. А. Сысоева
D
Dmitry I. Maltsev
V
Valeriy V. Pak
A
Aleksandr A. Moshchenko
I
Ivan N. Myasnyanko
М
Михаил С. Баранов
A
A. B. Fedotov
А
А. М. Желтиков
A
A. А. Lanin
J
Joris Messens *
V
Vsevolod V. Belousov *
DOI:10.1038/s41589-025-02036-6delete
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摘要

摘要

En 中文
H2O2是正常细胞代谢的重要信号分子和氧化还原调节剂,也是氧化应激的主要组成部分。本文报道了HyPerFLEX(带有可变荧光团激发的HyPer),一种来自HyPer家族的传感器,专为在活细胞中高精度监测H2O2而设计。HyPerFLEX结合了脑膜炎奈瑟菌(Neisseria meningitidis)的氧化还原敏感OxyR结构域和环状重排的荧光蛋白Y-FAST,在H2O2氧化OxyR后产生氧无关的荧光。HyPerFLEX能够成像活细胞中的H2O2动态,其光谱可调范围为绿光至远红光,适用于多隔室成像,即使在长期缺氧条件下也可使用。它在检测超低H2O2浓度方面优于HyPer7,例如在早期葡萄糖刺激的胰岛素产生过程中,并且能够测量高度氧化环境中内质网腔内的H2O2水平。这些先进特性和广泛的兼容性使HyPerFLEX成为研究氧化应激和细胞信号的有力工具。 氢过氧化物是一种信号分子,如果其水平过高也可能造成损伤。本文作者报道了HyPerFLEX,一种颜色可调的荧光传感器,用于追踪细胞器中极低水平的过氧化物,即使在低氧或高度氧化环境中也可使用。
Keyword:
HyPerFLEX
hydrogen peroxide
fluorescent sensor
oxidative stress
cellular signaling

期刊

Nature Chemical Biology 封面图
Nature Chemical Biology
IF:
13.7
论文数:
4.8K
被引数:
3.3W

机构

L
lomonosov moscow state university
学者数:
2.1W
论文数: 1.5W
被引数: 19
F
Federal Medical Biological Agency
学者数:
55
论文数: 18
被引数: 3
R
russian academy of sciences
学者数:
9.1W
论文数: 6.0W
被引数: 60
V
vlaams instituut voor biotechnologie
学者数:
12
论文数: 4
被引数: 0
L
Life Improvement by Future Technologies Center
学者数:
11
论文数: 6
被引数: 0
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