Volume 19, Issue 21 2204778
Research Article

A Versatile Theranostic Nanoplatform with Aggregation-Induced Emission Properties: Fluorescence Monitoring, Cellular Organelle Targeting, and Image-Guided Photodynamic Therapy

Haijun Ma

Haijun Ma

Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, School of Life Sciences, Ningxia University, Yinchuan, 750021 P. R. China

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Ruoxin Li

Ruoxin Li

MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084 P. R. China

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Haibing Meng

Haibing Meng

College of Chemistry, Taiyuan University of Technology, Taiyuan, 030024 P. R. China

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Mei Tian

Mei Tian

Human Phenome Institute, Fudan University, Shanghai, 200235 P. R. China

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Xianhong Zhang

Xianhong Zhang

Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, School of Life Sciences, Ningxia University, Yinchuan, 750021 P. R. China

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Yanling Liu

Yanling Liu

Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, School of Life Sciences, Ningxia University, Yinchuan, 750021 P. R. China

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Le Li

Corresponding Author

Le Li

Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, School of Life Sciences, Ningxia University, Yinchuan, 750021 P. R. China

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

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Jinying Yuan

Corresponding Author

Jinying Yuan

Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084 P. R. China

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

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Yen Wei

Corresponding Author

Yen Wei

MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084 P. R. China

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

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First published: 17 February 2023
Citations: 3

Abstract

Photosensitizers (PSs) play a key role in the photodynamic therapy (PDT) of tumors. However, commonly used PSs are prone to intrinsic fluorescence aggregation-caused quenching and photobleaching; this drawback severely limits the clinical application of PDT, necessitating new phototheranostic agents. Herein, a multifunctional theranostic nanoplatform (named TTCBTA NP) is designed and constructed to achieve fluorescence monitoring, lysosome-specific targeting, and image-guided PDT. TTCBTA with a twisted conformation and D-A structure is encapsulated in amphiphilic Pluronic F127 to form nanoparticles (NPs) in ultrapure water. The NPs exhibit biocompatibility, high stability, strong near-infrared emission, and desirable reactive oxygen species (ROSs) production capacity. The TTCBTA NPs also show high-efficiency photo-damage, negligible dark toxicity, excellent fluorescent tracing, and high accumulation in lysosome for tumor cells. Furthermore, TTCBTA NPs are used to obtain fluorescence images with good resolution of MCF-7 tumors in xenografted BALB/c nude mice. Crucially, TTCBTA NPs present a strong tumor ablation ability and image-guided PDT effect by generating abundant ROSs upon laser irradiation. These results demonstrate that the TTCBTA NP theranostic nanoplatform may enable highly efficient near-infrared fluorescence image-guided PDT.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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