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Cai W, Shen T, Wang D, Li T, Yu J, Peng C, Tang BZ. Efficient antibacterial AIEgens induced ROS for selective photodynamic treatment of bacterial keratitis. Front Chem 2023; 10:1088935. [PMID: 36688052 PMCID: PMC9846558 DOI: 10.3389/fchem.2022.1088935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 11/28/2022] [Indexed: 01/05/2023] Open
Abstract
Bacterial keratitis (BK) is an acute infection of the cornea, accompanied by uneven epithelium boundaries with stromal ulceration, potentially resulting in vision loss. Topical antibiotic is the regular treatment for BK. However, the incidence rate of multidrug-resistant bacteria limits the application of traditional antibiotics. Therefore, a cationic aggregation-induced emission luminogens (AIEgens) named TTVP is utilized for the treatment of BK. TTVP showed no obvious cytotoxicity in maintaining the normal cell morphology and viability under a limited concentration, and revealed the ability to selectively combine with bacteria in normal ocular environment. After light irradiation, TTVP produced reactive oxygen species (ROS), thus exerting efficient antibacterial ability in vitro. What's more, in rat models of Staphylococcus aureus (S. aureus) infection, the therapeutic intervention of TTVP lessens the degree of corneal opacity and inflammatory infiltration, limiting the spread of inflammation. Besides, TTVP manifested superior antibacterial efficacy than levofloxacin in acute BK, endowing its better vision salvage ability than conventional method. This research demonstrates the efficacy and advantages of TTVP as a photodynamic drug in the treatment of BK and represents its promise in clinical application of ocular infections.
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Affiliation(s)
- Wenting Cai
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Tianyi Shen
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Dong Wang
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, China
| | - Tingting Li
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jing Yu
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Chen Peng
- Department of Ophthalmology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China,Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China,*Correspondence: Chen Peng, ; Ben Zhong Tang,
| | - Ben Zhong Tang
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, China,Shenzhen Institute of Molecular Aggregate Science and Engineering, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Hong Kong SAR, China,*Correspondence: Chen Peng, ; Ben Zhong Tang,
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Peng C, Sun W, Zhou C, Qiang S, Jiang M, Lam JWY, Zhao Z, Kwok RTK, Cai W, Tang BZ. Vision redemption: Self-reporting AIEgens for combined treatment of bacterial keratitis. Biomaterials 2021; 279:121227. [PMID: 34736151 DOI: 10.1016/j.biomaterials.2021.121227] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/09/2021] [Accepted: 10/22/2021] [Indexed: 12/26/2022]
Abstract
Bacterial keratitis (BK) is one of the most commonly leading causes of visual impairment and blindness worldwide, and suffers the risk of drug-resistant infections due to the abuse of antibiotics. Herein, we report a cationic diphenyl luminogen with aggregation-induced emission called IQ-Cm containing isoquinolinium and coumarin units for theranostic study of BK. IQ-Cm has no obvious cytotoxicity to mammalian cells below a certain concentration, and could preferentially bind to bacteria over mammalian cells. IQ-Cm can be used as a sensitive self-reporting probe to rapidly discriminate live and dead bacteria by the visual emission colors. The intrinsic dark toxicity to bacteria and generation of reactive oxygen species under light irradiation endow IQ-Cm with excellent antibacterial activity in vitro and in BK rabbit models infected with S. aureus. The present study provides a sensitive and efficient theranostic strategy for rapid discrimination of various bacterial states and the combined treatment of BK based on the intrinsic dark antibacterial activity and photodynamic therapy effect.
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Affiliation(s)
- Chen Peng
- Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China; Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, 201508, China
| | - Wenjie Sun
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Institute of Advanced Materials for Nano-Bio Applications, School of Ophthalmology and Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, 325035, China.
| | - Chengcheng Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Sujing Qiang
- Department of Ophthalmology, Shanghai Tenth People's Hospital School of Medicine, Tongji University, Shanghai, 200072, China
| | - Meijuan Jiang
- Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
| | - Jacky W Y Lam
- Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
| | - Zheng Zhao
- Shenzhen Institute of Molecular Aggregate Science and Engineering, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Ryan T K Kwok
- Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
| | - Wenting Cai
- Department of Ophthalmology, Shanghai Tenth People's Hospital School of Medicine, Tongji University, Shanghai, 200072, China.
| | - Ben Zhong Tang
- Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China; Shenzhen Institute of Molecular Aggregate Science and Engineering, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 518172, China.
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Nguyen DD, Lai JY. Advancing the stimuli response of polymer-based drug delivery systems for ocular disease treatment. Polym Chem 2020. [DOI: 10.1039/d0py00919a] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Recent exploitations of stimuli-responsive polymers as ophthalmic drug delivery systems for the treatment of eye diseases are summarized and discussed.
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Affiliation(s)
- Duc Dung Nguyen
- Graduate Institute of Biomedical Engineering
- Chang Gung University
- Taoyuan 33302
- Republic of China
| | - Jui-Yang Lai
- Graduate Institute of Biomedical Engineering
- Chang Gung University
- Taoyuan 33302
- Republic of China
- Department of Ophthalmology
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