Volume 132, Issue 47 pp. 21218-21226
Forschungsartikel

Near-Infrared Light-Triggered Chlorine Radical (.Cl) Stress for Cancer Therapy

Ruixue Song

Ruixue Song

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 P. R. China

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Dr. Han Wang

Dr. Han Wang

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 P. R. China

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Dr. Meng Zhang

Dr. Meng Zhang

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 P. R. China

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Prof. Yanyan Liu

Corresponding Author

Prof. Yanyan Liu

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 P. R. China

Department of Materials Science, Fudan University, Shanghai, 200433 P. R. China

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Dr. Xianfu Meng

Dr. Xianfu Meng

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Shaojie Zhai

Shaojie Zhai

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 P. R. China

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Dr. Chao-chao Wang

Dr. Chao-chao Wang

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Dr. Teng Gong

Dr. Teng Gong

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 P. R. China

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Prof. Yelin Wu

Prof. Yelin Wu

Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072 P. R. China

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Dr. Xingwu Jiang

Dr. Xingwu Jiang

Department of Materials Science, Fudan University, Shanghai, 200433 P. R. China

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Prof. Wenbo Bu

Corresponding Author

Prof. Wenbo Bu

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 P. R. China

Department of Materials Science, Fudan University, Shanghai, 200433 P. R. China

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 P. R. China

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First published: 15 July 2020
Citations: 15

Abstract

Free radicals with reactive chemical properties can fight tumors without causing drug resistance. Reactive oxygen species (ROS) has been widely used for cancer treatment, but regrettably, the common O2 and H2O2 deficiency in tumors sets a severe barrier for sufficient ROS production, leading to unsatisfactory anticancer outcomes. Here, we construct a chlorine radical (.Cl) nano-generator with SiO2-coated upconversion nanoparticles (UCNPs) on the inside and Ag0/AgCl hetero-dots on the outside. Upon near-infrared (NIR) light irradiation, the short-wavelength emission UCNP catalyzes .Cl generation from Ag0/AgCl with no dependence on O2/H2O2. .Cl with strong oxidizing capacity and nucleophilicity can attack biomolecules in cancer cells more effectively than ROS. This .Cl stress treatment will no doubt broaden the family of oxidative stress-induced antitumor strategies by using non-oxygen free radicals, which is significant in the development of new anticancer agents.

Conflict of interest

The authors declare no conflict of interest.

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