Volume 18, Issue 36 2106000
Research Article

NIR/MRI-Guided Oxygen-Independent Carrier-Free Anti-Tumor Nano-Theranostics

Di Gao

Di Gao

The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049 P. R. China

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Yupeng Shi

Yupeng Shi

Henan Key laboratory of Functional Magnetic Resonance Imaging and Molecular Imaging Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000 P. R. China

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Jiahua Ni

Jiahua Ni

School of Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139 USA

John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138 USA

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Shuojia Chen

Shuojia Chen

The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049 P. R. China

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Ying Wang

Ying Wang

The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049 P. R. China

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Bin Zhao

Bin Zhao

The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049 P. R. China

Department of Epidemiology, Shaanxi Provincial Tumor Hospital, Xi'an, 710061 P. R. China

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Manli Song

Manli Song

Henan Key laboratory of Functional Magnetic Resonance Imaging and Molecular Imaging Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000 P. R. China

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Xiaoqing Guo

Xiaoqing Guo

The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049 P. R. China

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Xuechun Ren

Xuechun Ren

The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049 P. R. China

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Xingcai Zhang

Corresponding Author

Xingcai Zhang

School of Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139 USA

John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138 USA

E-mail: [email protected]; [email protected]; [email protected]

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Zhongmin Tian

Corresponding Author

Zhongmin Tian

The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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Zhe Yang

Corresponding Author

Zhe Yang

The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049 P. R. China

Research Center of Life Science, Research Institute of Xi'an Jiaotong University, Zhejiang, 311200 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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First published: 02 December 2021
Citations: 24

Abstract

Imaging-guided photothermal therapy (PTT)/photodynamic therapy (PDT) for cancer treatment are beneficial for precise localization of the malignant lesions and combination of multiple cell killing mechanisms in eradicating stubborn thermal-resistant cancer cells. However, overcoming the adverse impact of tumor hypoxia on PDT efficacy remains a challenge. Here, carrier-free nano-theranostic agents are developed (AIBME@IR780-APM NPs) for magnetic resonance imaging (MRI)-guided synergistic PTT/thermodynamic therapy (TDT). Two IR780 derivatives are synthesized as the subject of nanomedicine to confer the advantages for the nanomedicine, which are by feat of amphiphilic IR780-PEG to enhance the sterical stability and reduce the risk from reticuloendothelial system uptake, and IR780-ATU to chelate Mn2+ for T1-weighted MRI. Dimethyl 2,2′-azobis(2-methylpropionate) (AIBME), acting as thermally decomposable radical initiators, are further introduced into nanosystems with the purpose of generating highly cytotoxic alkyl radicals upon PTT launched by IR780 under 808 nm laser irradiation. Therefore, the sequentially generated heat and alkyl radicals synergistically induce cell death via synergistic PTT/TDT, ignoring tumor hypoxia. Moreover, these carrier-free nano-theranostic agents present satisfactory biocompatibility, which could be employed as a powerful weapon to hit hypoxic tumors via MRI-guided oxygen-independent PTT and photonic TDT.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Data available in the article and the supplementary material as well as by reasonable request from the authors.

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