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Wang B, Li C, He D, Ding K, Tian Q, Feng G, Qin A, Tang BZ. Bioconjugation and Reaction-Induced Tumor Therapy via Alkynamide-Based Thiol-Yne Click Reaction. Small 2023:e2307309. [PMID: 38150611 DOI: 10.1002/smll.202307309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/23/2023] [Indexed: 12/29/2023]
Abstract
Ferroptosis is associated with the occurrence and development of many diseases, which is the result of an imbalance in cellular metabolism and oxidation-reduction balance. Therefore, it is an effective therapeutic strategy that simultaneously regulating the intracellular oxidation-reduction system. Herein, a click reaction of alkynylamide with thiol groups in the presence of amine or in PBS (pH = 7.4) is developed, which can react efficiently with thiol substances, such as cysteine (Cys), glutathione (GSH), and bovine serum albumin (BSA). Notably, MBTB-PA, an aggregation-induced emission (AIE) photosensitizer with an alkynylamide unit, is synthesized and its intracellular behavior is visualized in situ by fluorescence imaging, demonstrating its excellent ability to target the endoplasmic reticulum. Furthermore, MBTB-PA reacted with proteins in tumor cells, consumed reducing substances, and triggered intracellular oxidative stress, resulting in cell death. Based on this reaction therapy strategy, click reaction is combined with photodynamic therapy to achieve effective killing of tumor cells by simultaneously raising the intracellular oxidative state and reducing the reductive state. This work not only develops an application of click reaction of alkynamide with thiol in bioconjugation and anti-tumor therapy, but also provides feasible ideas for organic reactions in the exploration of organisms.
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Affiliation(s)
- Bingnan Wang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou, 510640, China
| | - Chunyang Li
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou, 510640, China
| | - Dong He
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Keke Ding
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Qi Tian
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou, 510640, China
| | - Guangxue Feng
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou, 510640, China
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou, 510640, China
| | - Ben Zhong Tang
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou, 510640, China
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen(CUHK-Shenzhen), Guangdong, 518172, China
- Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
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