A puromycin-dependent activity-based sensing probe for histochemical staining of hydrogen peroxide in cells and animal tissues.
A puromycin-dependent activity-based sensing probe for histochemical staining of hydrogen peroxide in cells and animal tissues.
复制标题
一种嘌呤霉素依赖性活性传感探针,用于细胞和动物组织中过氧化氢的组织化学染色。
DOI:
10.1038/s41596-022-00694-7
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发表时间:
2022-07
期刊:
影响因子:
14.8
通讯作者:
Chang, Christopher J.
中科院分区:
文献类型:
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作者:
Hoshi, Kaede;Messina, Marco S.;Ohata, Jun;Chung, Clive Yik-Sham;Chang, Christopher J.
Hydrogen peroxide (H2O2) is a key member of the reactive oxygen species family of transient small molecules that has broad contributions to oxidative stress and redox signaling. The development of selective and sensitive chemical probes can enable the study of H2O2 biology in cell, tissue and animal models. Peroxymycin-1 is a histochemical activity–based sensing probe that responds to H2O2 via chemoselective boronate oxidation to release puromycin, which is then covalently incorporated into nascent proteins by the ribosome and can be detected by antibody staining. Here, we describe an optimized two-step, one-pot protocol for synthesizing Peroxymycin-1 with improved yields over our originally reported procedure. We also present detailed procedures for applying Peroxymycin-1 to a broad range of biological samples spanning cells to animal tissues for profiling H2O2 levels through histochemical detection by using commercially available anti-puromycin antibodies. The preparation of Peroxymycin-1 takes 9 h, the confocal imaging experiments of endogenous H2O2 levels across different cancer cell lines take 1 d, the dot blot analysis of mouse liver tissues takes 1 d and the confocal imaging of mouse liver tissues takes 3–4 d.
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影响因子:
4.8
作者:
Guyton, KZ;Liu, YS;Holbrook, NJ
通讯作者:
Holbrook, NJ
影响因子:
15
作者:
Dickinson BC;Huynh C;Chang CJ
通讯作者:
Chang CJ
影响因子:
15
作者:
Yik-Sham Chung C;Timblin GA;Saijo K;Chang CJ
通讯作者:
Chang CJ
DOI:
10.1073/pnas.1834314100
发表时间:
2003-09-30
影响因子:
11.1
作者:
Avshalumov, MV;Rice, ME
通讯作者:
Rice, ME
影响因子:
14.8
作者:
通讯作者:
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