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Wang M, Zhao Y, Chang M, Ding B, Deng X, Cui S, Hou Z, Lin J. Azo Initiator Loaded Black Mesoporous Titania with Multiple Optical Energy Conversion for Synergetic Photo-Thermal-Dynamic Therapy. ACS Appl Mater Interfaces 2019; 11:47730-47738. [PMID: 31790193 DOI: 10.1021/acsami.9b17375] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
To date, the limited light conversion ability and the oxygen-dependent therapeutic process of most photosensitizers make it difficult to achieve satisfactory therapeutic effects in the complex tumor microenvironment, especially the anoxic environment. Herein, the black mesoporous titania (BMT) with large pore size (∼8 nm) is synthesized as a new-style carrier for radical generator drug (AIBI) loading. The BMT as a light transducer can convert near-infrared (NIR) light energy into thermal energy and chemical energy (•OH), contributing to photothermal therapy (PTT) and photodynamic therapy (PDT), respectively. More importantly, AIBI would be thermally decomposed into alkyl radicals (•R) for thermodynamic therapy (TDT). The high concentration of free radicals produced by BMT@AIBI NCs resulted in double-strand breaks (DSBs) of DNA and finally induced cancer cell apoptosis. Since the generation of radicals is unrelated to oxygen, the BMT@AIBI NCs with NIR irradiation presented excellent in vitro and in vivo anticancer results under hypoxic conditions. The reported NIR-induced platform based on BMT@AIBI NCs, which could perform triple energy-conversion processes including light energy to thermal energy, to chemical energy, and to thermal energy then to chemical energy, realizes synergetic photo-thermal-dynamic therapy (PTT, PDT, and TDT) to overcome the problem of tumor hypoxia for enhanced anticancer effects.
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Affiliation(s)
- Meifang Wang
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022 , P. R. China
- University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Yajie Zhao
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022 , P. R. China
- University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Mengyu Chang
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022 , P. R. China
- University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Binbin Ding
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022 , P. R. China
- University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Xiaoran Deng
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Shuzhong Cui
- Department of Abdominal Surgery , Affiliated Cancer Hospital & Institute of Guangzhou Medical University , Guangzhou 510095 , P. R. China
| | - Zhiyao Hou
- Department of Abdominal Surgery , Affiliated Cancer Hospital & Institute of Guangzhou Medical University , Guangzhou 510095 , P. R. China
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences , Guangzhou Medical University , Guangzhou 511436 , P. R. China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022 , P. R. China
- University of Science and Technology of China , Hefei 230026 , P. R. China
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