Volume 43, Issue 2 pp. 175-183
Concise Report

An Intelligent Triple Assisted Gold Cluster-Based Nanosystem for Enhanced Tumor Photodynamic Therapy

Fangli Gao

Fangli Gao

School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007 China

These authors contributed equally.

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Yanru Liu

Yanru Liu

Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007 China

These authors contributed equally.

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Liang Zhu

Liang Zhu

Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007 China

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Jie Zhang

Corresponding Author

Jie Zhang

School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Yi Chang

Yi Chang

School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007 China

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Weihua Gao

Weihua Gao

School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007 China

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Guanglei Ma

Guanglei Ma

Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007 China

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Xiaoming Ma

Corresponding Author

Xiaoming Ma

Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan, 453007 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
Yuming Guo

Corresponding Author

Yuming Guo

School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007 China

Henan International Joint Laboratory of Smart Molecules and Identification and Diagnostic Functions, Henan Normal University, Xinxiang, Henan, 453007 China

E-mail: [email protected]; [email protected]; [email protected]Search for more papers by this author
First published: 16 October 2024
Citations: 1

Comprehensive Summary

Photodynamic therapy (PDT) has been attracted a surge of research interest. However, there are several obstacles to limit the efficacy of PDT, such as hypoxic tumor microenvironment (TME), overexpressed glutathione (GSH), inefficient reactive oxygen species (ROS) generation, and so on. Herein, a smart responsive nanosystem was constructed, which was composed of Au25 modified with triphenylphosphine (Au25-TPP), catalase (CAT) and GSH-responsive diselenide-bridged mesoporous silica nanoparticles (Se-MSN). When the nanosystem arrived at tumor site, Se-MSN was degraded by the intracellular overexpressed GSH to release Au25-TPP and CAT. The Au25-TPP was targeted to mitochondria and generated ROS under the 808 nm NIR laser irradiation to kill tumor cells. Simultaneously, CAT could catalyze hydrogen peroxide to provide oxygen for relieving the hypoxia of TME. Besides, GSH was consumed by the diselenide bond to diminish the ROS loss. The above tactics (mitochondria targeting, hypoxia relieving and GSH consuming) jointly enhanced the PDT efficacy. The nanosystem showed distinct in vitro anticancer effect significantly stronger than other groups containing one or two assistance. Moreover, the in vivo results suggested that the tumors could be restrained obviously. The current study provides a new inspiration for constructing novel inorganic nanomedicines with multiple enhancement effect of PDT efficacy.

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