Volume 134, Issue 50 e202213495
Forschungsartikel

In Vivo Nitroreductase Imaging via Fluorescence and Chemical Shift Dependent 19F NMR

Dr. Shizhen Chen

Dr. Shizhen Chen

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

These authors contributed equally to this work.

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Long Xiao

Long Xiao

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

These authors contributed equally to this work.

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Dr. Yu Li

Dr. Yu Li

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Maosong Qiu

Maosong Qiu

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Dr. Yaping Yuan

Dr. Yaping Yuan

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Dr. Rui Zhou

Dr. Rui Zhou

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Prof. Dr. Conggang Li

Prof. Dr. Conggang Li

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Dr. Lei Zhang

Dr. Lei Zhang

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Prof. Dr. Zhong-Xing Jiang

Prof. Dr. Zhong-Xing Jiang

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Prof. Dr. Maili Liu

Prof. Dr. Maili Liu

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Prof. Dr. Xin Zhou

Corresponding Author

Prof. Dr. Xin Zhou

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences—Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 (P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 China

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First published: 20 October 2022

Abstract

Nitroreductase (NTR) is an important biomarker widely used to evaluate the degree of tumor hypoxia. Although a few optical methods have been reported for detecting nitroreductase at low concentration ranges, an effective strategy for nitroreductase monitoring in vivo without limits to the imaging depth is still lacking. Herein, a novel dual-mode NIR fluorescence and 19F MRI agent, FCy7-NO2, is proposed for imaging tumor hypoxia. We show that FCy7-NO2 serves as not only a rapid NIR fluorescence enhanced probe for monitoring and bioimaging of nitroreductase in tumors, but also a novel 19F MR chemical shift-sensitive contrast agent for selectively detecting nitroreductase catalyzed reduction. Notably, integrating two complementary imaging technologies into FCy7-NO2 enables sensitive detection of nitroreductase in a broad concentration range without tissue-depth limit. In general, this agent has a remarkable response to nitroreductase, which provides a promising method for understanding tumor evolution and its physiological role in the hypoxic microenvironment.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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