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Liu Z, Zhang J, Ma X, Wang M, Jiang L, Zhang M, Lu M, Chang O, Cao J, Ke X, Yi M. Aggregation-induced emission of TTCPy-3: A novel approach for eradicating Nocardia seriolae infections in aquatic fishes. Biosens Bioelectron 2024; 254:116208. [PMID: 38492361 DOI: 10.1016/j.bios.2024.116208] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 03/04/2024] [Accepted: 03/10/2024] [Indexed: 03/18/2024]
Abstract
Aquatic fishes are threatened by the strong pathogenic bacterium Nocardia seriolae, which challenges the current prevention and treatment approaches. This study introduces luminogens with aggregation-induced emission (AIE) as an innovative and non-antibiotic therapy for N. seriolae. Specifically, the AIE photosensitizer, TTCPy-3 is employed against N. seriolae. We evaluated the antibacterial activity of TTCPy-3 and investigated the killing mechanism against N. seriolae, emphasizing its ability to aggregate within the bacterium and produce reactive oxygen species (ROS). TTCPy-3 could effectively aggregate in N. seriolae, generate ROS, and perform real-time imaging of the bacteria. A bactericidal efficiency of 100% was observed while concentrations exceeding 4 μM in the presence of white light irradiation for 10 min. In vivo, evaluation on zebrafish (Danio rerio) confirmed the superior therapeutic efficacy induced by TTCPy-3 to fight against N. seriolae infections. TTCPy-3 offers a promising strategy for treating nocardiosis of fish, paving the way for alternative treatments beyond traditional antibiotics and potentially addressing antibiotic resistance.
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Affiliation(s)
- Zhigang Liu
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, PR China
| | - Junling Zhang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, PR China
| | - Xiaona Ma
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China; Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, 222005, PR China
| | - Miao Wang
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China
| | - Lijin Jiang
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China
| | - Meiyan Zhang
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China
| | - Maixin Lu
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, 525000, PR China
| | - Ouqin Chang
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China
| | - Jianmeng Cao
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, 525000, PR China.
| | - Xiaoli Ke
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, 525000, PR China.
| | - Mengmeng Yi
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510380, PR China.
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