Volume 133, Issue 11 pp. 6013-6023
Forschungsartikel

Endogenous mRNA Triggered DNA-Au Nanomachine for In Situ Imaging and Targeted Multimodal Synergistic Cancer Therapy

Sha Yu

Sha Yu

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023 P. R. China

These authors contributed equally to this work.

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Dr. Yang Zhou

Dr. Yang Zhou

School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99164 USA

These authors contributed equally to this work.

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Yao Sun

Yao Sun

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023 P. R. China

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Shaojun Wu

Shaojun Wu

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023 P. R. China

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Tingting Xu

Tingting Xu

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023 P. R. China

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Dr. Yu-Chung Chang

Dr. Yu-Chung Chang

School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99164 USA

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Prof. Sai Bi

Corresponding Author

Prof. Sai Bi

College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071 P. R. China

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Prof. Li-Ping Jiang

Corresponding Author

Prof. Li-Ping Jiang

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023 P. R. China

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Prof. Jun-Jie Zhu

Corresponding Author

Prof. Jun-Jie Zhu

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023 P. R. China

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First published: 02 December 2020
Citations: 10

Abstract

The development of versatile nanotheranostic platforms that integrate both diagnostic and therapeutic functions have always been an intractable challenge in precise cancer treatment. Herein, an aptamer-tethered deoxyribonucleic acids-gold particle (Apt-DNA-Au) nanomachine has been developed for in situ imaging and targeted multimodal synergistic therapy of mammary carcinoma. Upon specifically internalized into MCF-7 cells, the tumor-related TK1 mRNA activates the Apt-DNA-Au nanomachine by DNA strand displacement cascades, resulting in the release of the fluorophore and antisense DNA as well as the aggregation of AuNPs for in situ imaging, suppression of survivin expression and photothermal therapy, respectively. Meanwhile, the controlled released drugs are used for chemotherapy, while under the laser irradiation the loaded photosensitizer produces reactive oxygen species (ROS) for photodynamic therapy. The results confirm that the proposed Apt-DNA-Au nanomachine provides a powerful nanotheranostic platform for in situ imaging-guided combinatorial anticancer therapy.

Conflict of interest

The authors declare no conflict of interest.

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