Discovery of a Redox-Activatable Chemical Probe for Detection of Cyclooxygenase-2 in Cells and Animals.
Discovery of a Redox-Activatable Chemical Probe for Detection of Cyclooxygenase-2 in Cells and Animals.
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DOI:
10.1021/acschembio.1c00961
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发表时间:
2022-07-15
影响因子:
4
通讯作者:
Marnett LJ
中科院分区:
文献类型:
--
作者:
Uddin MJ;Lo JH;Oltman CG;Crews BC;Huda T;Liu J;Kingsley PJ;Lin S;Milad M;Aleem AM;Asaduzzaman A;McIntyre JO;Duvall CL;Marnett LJ
Cyclooxygenase-2 (COX-2) expression is up-regulated in inflammatory tissues and many premalignant and malignant tumors. Assessment of COX-2 protein in vivo, therefore, promises to be a powerful strategy to distinguish pathologic cells from normal cells in a complex disease setting. Herein, we report the first redox-activatable COX-2 probe, fluorocoxib Q (FQ), for in vivo molecular imaging of pathogenesis. FQ inhibits COX-2 selectively in purified enzyme and cell-based assays. FQ exhibits extremely low fluorescence and displays time- and concentration-dependent fluorescence enhancement upon exposure to a redox environment. FQ enters the cells freely and binds to COX-2 enzyme. FQ exhibits high circulation half-life and metabolic stability sufficient for target site accumulation and demonstrates COX-2-targeted uptake and retention in cancer cells and pathologic tissues. Once taken up, it undergoes redox-mediated transformation into a fluorescent compound (FQ-H) that results in high signal-to-noise contrast and differentiates pathologic tissues from non-pathologic tissues for real time in vivo imaging.
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DOI:
10.1073/pnas.89.16.7384
发表时间:
1992-08-15
影响因子:
11.1
作者:
HLA, T;NEILSON, K
通讯作者:
NEILSON, K
影响因子:
8.4
作者:
Harrison, Kareem A.;Haidasz, Evan A.;Pratt, Derek A.
通讯作者:
Pratt, Derek A.
影响因子:
8.8
作者:
通讯作者:
--
影响因子:
--
作者:
di Meglio, Paola;Ianaro, Angela;Ghosh, Sankar
通讯作者:
Ghosh, Sankar
影响因子:
3.7
作者:
Nakanishi, Koki;Morita, Shinji;Katai, Hitoshi
通讯作者:
Katai, Hitoshi