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A FRET-based ratiometric fluorescent probe to detect cysteine metabolism in mitochondria

文献类型: 外文期刊

作者: Han, Xiaojing 1 ; Zhai, Zhiyao 1 ; Yang, Xiaopeng 1 ; Zhang, Di 3 ; Tang, Jun 1 ; Zhu, Jianming 1 ; Zhu, Xiaofei 1 ; Ye, 1 ;

作者机构: 1.Zhengzhou Univ, Green Catalysis Ctr, Zhengzhou 450001, Peoples R China

2.Zhengzhou Univ, Coll Chem, Zhengzhou 450001, Peoples R China

3.Henan Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Zhengzhou 450002, Peoples R China

4.Zhengzhou Univ, Journal Zhengzhou Univ, Zhengzhou, Peoples R China

期刊名称:ORGANIC & BIOMOLECULAR CHEMISTRY ( 影响因子:3.876; 五年影响因子:3.397 )

ISSN: 1477-0520

年卷期: 2020 年 18 卷 7 期

页码:

收录情况: SCI

摘要: As an important biothiol in living cells, cysteine is closely related to oxidative damage in living organisms. Sulfite from cysteine metabolism in living cells plays a crucial role in maintaining homeostasis in an organism, and the unbalance of sulfite in vivo would lead to multiple diseases. Thus the development of a new fluorescent probe for cysteine metabolism is needed urgently in mitochondria which are the main place of cysteine metabolism. Herein we construct a novel targeting mitochondria fluorescent probe CP-K based on the FRET mechanism to visualize sulfite in living MCF-7 cells. Probe CP-K displays a large Stokes shift of 150 nm, a low detection limit (26.3 nM) and "naked eye" detection after the addition of HSO3-. Importantly, it is appropriate for imaging the endogenous sulfite from cysteine metabolism in living cells.

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