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Rodríguez-Pedrouzo A, Cisneros-Sureda J, Martínez-Matamoros D, Rey-Varela D, Balado M, Rodríguez J, Lemos ML, Folgueira M, Jiménez C. Detection of Aeromonas salmonicida subsp. salmonicida infection in zebrafish by labelling bacteria with GFP and a fluorescent probe based on the siderophore amonabactin. Microb Pathog 2023; 185:106394. [PMID: 37858632 DOI: 10.1016/j.micpath.2023.106394] [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: 06/12/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 10/21/2023]
Abstract
Zebrafish (Danio rerio) is an excellent model to study bacterial infections in fish and their treatment. We used zebrafish as a model of infection for Aeromonas salmonicida subsp. salmonicida (hereinafter A. salmonicida), the causative agent of fish furunculosis. The infection process of A. salmonicida was studied by immersion of zebrafish larvae in 2 different doses of the bacteria and the fish mortality was monitored for three days. The bacterium caused a high mortality (65 %) in zebrafish larvae only when they were exposed to a high bacterial concentration (107 bacterial cells/mL). To evaluate the use of fluorescence microscopy to follow A. salmonicida infection in vivo, two different fluorescent strains generated by labeling an A. salmonicida strain with either, the green fluorescent protein (GFP), or with a previously reported siderophore amonabactin-sulforhodamine B conjugate (AMB-SRB), were used. The distribution of both labeled bacterial strains in the larvae tissues was evaluated by conventional and confocal fluorescence microscopy. The fluorescent signal showed a greater intensity with the GFP-labeled bacteria, so it could be observed using conventional fluorescence microscopy. Since the AMB-SRB labeled bacteria showed a weaker signal, the larvae were imaged using a laser scanning confocal microscope after 48 h of exposure to the bacteria. Both fluorescent signals were mainly observed in the larvae digestive tract, suggesting that this is the main colonization route of zebrafish for waterborne A. salmonicida. This is the first report of the use of a siderophore-fluorophore conjugate to study a bacterial infection in fish. The use of a siderophore-fluorophore conjugate has the advantage that it is a specific marker and that does not require genetic manipulation of the bacteria.
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Affiliation(s)
- A Rodríguez-Pedrouzo
- CICA - Centro Interdisciplinar de Química e Bioloxía e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain
| | - J Cisneros-Sureda
- CICA - Centro Interdisciplinar de Química e Bioloxía e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain
| | - D Martínez-Matamoros
- CICA - Centro Interdisciplinar de Química e Bioloxía e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain
| | - D Rey-Varela
- Departamento de Microbiología y Parasitología, Instituto de Acuicultura, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - M Balado
- Departamento de Microbiología y Parasitología, Instituto de Acuicultura, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - J Rodríguez
- CICA - Centro Interdisciplinar de Química e Bioloxía e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain.
| | - M L Lemos
- Departamento de Microbiología y Parasitología, Instituto de Acuicultura, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - M Folgueira
- CICA - Centro Interdisciplinar de Química e Bioloxía e Departamento de Bioloxía, Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain.
| | - C Jiménez
- CICA - Centro Interdisciplinar de Química e Bioloxía e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071, A Coruña, Spain.
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Han X, Cui AL, Yang HX, Wu L, Wei R, Liu Q, Li ZR, Hu HY. Polymyxin-based fluorescent probes to combat Gram-negative antimicrobial resistance. Talanta 2023; 260:124576. [PMID: 37148689 DOI: 10.1016/j.talanta.2023.124576] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 05/08/2023]
Abstract
Reliable diagnostic approaches especially those targeting critical Gram-negative bacteria are urgently needed for the prevention of antimicrobial resistance. Polymyxin B (PMB) which specifically targets the outer membrane of Gram-negative bacteria is the last-line antibiotic against life-threatening multidrug-resistant Gram-negative bacteria. However, increasing number of studies have reported the spread of PMB-resistant strains. With the aim to specifically detect Gram-negative bacteria and potentially reduce the irrational use of antibiotics, we herein rationally designed two Gram-negative bacteria specific fluorescent probes based on our previous activity-toxicity optimization of PMB. The in vitro probe PMS-Dns showed fast and selective labeling of Gram-negative pathogens in complex biological cultures. Subsequently, we constructed the caged in vivo fluorescent probe PMS-Cy-NO2 by conjugating bacterial nitroreductase (NTR)-activatable positive charged hydrophobic near-infrared (NIR) fluorophore with polymyxin scaffold. Significantly, PMS-Cy-NO2 exhibited excellent Gram-negative bacterial detection capability with the differentiation between Gram-positive and Gram-negative in a mouse skin infection model.
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Affiliation(s)
- Xiaowan Han
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - A-Long Cui
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - He-Xian Yang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Lingling Wu
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Rao Wei
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Qian Liu
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Zhuo-Rong Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
| | - Hai-Yu Hu
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
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Nazli A, He DL, Liao D, Khan MZI, Huang C, He Y. Strategies and progresses for enhancing targeted antibiotic delivery. Adv Drug Deliv Rev 2022; 189:114502. [PMID: 35998828 DOI: 10.1016/j.addr.2022.114502] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 11/18/2021] [Revised: 08/10/2022] [Accepted: 08/16/2022] [Indexed: 01/24/2023]
Abstract
Antibiotic resistance is a global health issue and a potential risk for society. Antibiotics administered through conventional formulations are devoid of targeting effect and often spread to various undesired body sites, leading to sub-lethal concentrations at the site of action and thus resulting in emergence of resistance, as well as side effects. Moreover, we have a very slim antibiotic pipeline. Drug-delivery systems have been designed to control the rate, time, and site of drug release, and innovative approaches for antibiotic delivery provide a glint of hope for addressing these issues. This review elaborates different delivery strategies and approaches employed to overcome the limitations of conventional antibiotic therapy. These include antibiotic conjugates, prodrugs, and nanocarriers for local and targeted antibiotic release. In addition, a wide range of stimuli-responsive nanocarriers and biological carriers for targeted antibiotic delivery are discussed. The potential advantages and limitations of targeted antibiotic delivery strategies are described along with possible solutions to avoid these limitations. A number of antibiotics successfully delivered through these approaches with attained outcomes and potentials are reviewed.
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Affiliation(s)
- Adila Nazli
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | - David L He
- College of Chemistry, University of California, Berkeley, CA 94720, United States
| | - Dandan Liao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China
| | | | - Chao Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China.
| | - Yun He
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, PR China.
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Cisneros-sureda J, Rey-varela D, Rodríguez J, Balado M, Lemos ML, Jiménez C. Selective detection of Aeromonas spp. by a fluorescent probe based on the siderophore amonabactin. J Inorg Biochem 2022. [DOI: 10.1016/j.jinorgbio.2022.111743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 11/19/2022]
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Kamihira R, Nakao Y. Small-Scale Preparation of Fluorescently Labeled Chemical Probes from Marine Cyclic Peptides, Kapakahines A and F. Mar Drugs 2021; 19:76. [PMID: 33572527 DOI: 10.3390/md19020076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 12/15/2022] Open
Abstract
A number of bioactive marine natural products have been isolated so far, but it is still difficult to disclose their modes of action. In this study, we prepared fluorescently labeled chemical probes from the cytotoxic marine cyclic peptides kapakahines A (1) and F (2) to visualize their localization as the first step of the study of their modes of action. We used fluorescent dyes 3a or 3a/b (a 1:1 mixture of 3a and 3b) whose terminal N-hydroxysuccinimide (NHS) group can react with the free amino groups of kapakahines. The fluorescently labeled kapakahine A (Kap A-5-FL, 5a) stained P388 murine leukemia cells and HeLa human cervical cancer cells, while cells treated with fluorescently labeled kapakahine F (Kap F-5-FL, 6a) only weakly stained them. Further analysis of the confocal images of the stained cells with higher magnification (×100) indicated the localization of Kap A-5-FL (5a) in the cells. In this paper, we report the small-scale preparation and a new delivery method of fluorescent probes, as well as the application of these procedures to cell staining.
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Hira J, Uddin MJ, Haugland MM, Lentz CS. From Differential Stains to Next Generation Physiology: Chemical Probes to Visualize Bacterial Cell Structure and Physiology. Molecules 2020; 25:E4949. [PMID: 33114655 PMCID: PMC7663024 DOI: 10.3390/molecules25214949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 12/16/2022] Open
Abstract
Chemical probes have been instrumental in microbiology since its birth as a discipline in the 19th century when chemical dyes were used to visualize structural features of bacterial cells for the first time. In this review article we will illustrate the evolving design of chemical probes in modern chemical biology and their diverse applications in bacterial imaging and phenotypic analysis. We will introduce and discuss a variety of different probe types including fluorogenic substrates and activity-based probes that visualize metabolic and specific enzyme activities, metabolic labeling strategies to visualize structural features of bacterial cells, antibiotic-based probes as well as fluorescent conjugates to probe biomolecular uptake pathways.
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Affiliation(s)
- Jonathan Hira
- Research Group for Host-Microbe Interactions, Department of Medical Biology and Centre for New Antibacterial Strategies (CANS), UiT—The Arctic University of Norway, 9019 Tromsø, Norway; (J.H.); (M.J.U.)
| | - Md. Jalal Uddin
- Research Group for Host-Microbe Interactions, Department of Medical Biology and Centre for New Antibacterial Strategies (CANS), UiT—The Arctic University of Norway, 9019 Tromsø, Norway; (J.H.); (M.J.U.)
| | - Marius M. Haugland
- Department of Chemistry and Centre for New Antibacterial Strategies (CANS), UiT—The Arctic University of Norway, 9019 Tromsø, Norway;
| | - Christian S. Lentz
- Research Group for Host-Microbe Interactions, Department of Medical Biology and Centre for New Antibacterial Strategies (CANS), UiT—The Arctic University of Norway, 9019 Tromsø, Norway; (J.H.); (M.J.U.)
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7
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Pires NMM, Dong T, Yang Z, da Silva LFBA. Recent methods and biosensors for foodborne pathogen detection in fish: progress and future prospects to sustainable aquaculture systems. Crit Rev Food Sci Nutr 2020; 61:1852-1876. [PMID: 32539431 DOI: 10.1080/10408398.2020.1767032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The aquaculture industry has advanced toward sustainable recirculating systems, in where parameters of food quality are strictly monitored. Despite that, as in the case of conventional aquaculture practices, the recirculating systems also suffer threats from Aeromonas spp., Vibrio spp., Streptococcus spp., among other foodborne pathogens infecting farmed fish. The aquaculture pathogens are routinely detected by conventional PCR methods or antibody-based tests, with the detection protocols confined to laboratory use. Emerging assay technologies and biosensors recently reported in the literature open new opportunities to the development of sensitive, specific, and portable analytical devices to use in the field. Techniques of DNA/RNA analysis, immunoassays and other nanomolecular technologies have been facing important advances in response time, sensitivity, and enhanced power of discrimination among and within species. Moreover, the recent developments of electrochemical and optical signal transduction have facilitated the incorporation of the innovative assays to practical miniaturized devices. In this work, it is provided a critical review over foodborne pathogen detection by existing and promising methods and biosensors applied to fish samples and extended to other food matrices. While isothermal DNA/RNA amplification methods can be highlighted among the assay methods for their promising analytical performance and suitability for point-of-care testing, the electrochemical transduction provides a way to achieve cost-effective biosensors amenable to use in the aquaculture field. The adoption of new methods and biosensors would constitute a step forward in securing sustainable aquaculture systems.
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Affiliation(s)
- Nuno M M Pires
- Chongqing Key Laboratory of Micro-Nano Systems and Smart Transduction, Collaborative Innovation Center on Micro-Nano Transduction and Intelligent Eco-Internet of Things, Chongqing Key Laboratory of Colleges and Universities on Micro-Nano Systems Technology and Smart Transducing, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, China.,Department of Microsystems- IMS, Faculty of Technology, Natural Sciences and Maritime Sciences, University of South-Eastern Norway-USN, Kongsberg, Norway.,Centre for Environmental Radioactivity (CERAD CoE), Norwegian University of Life Sciences (NMBU), Faculty of Environmental Sciences and Natural Resource Management, Ås, Norway
| | - Tao Dong
- Department of Microsystems- IMS, Faculty of Technology, Natural Sciences and Maritime Sciences, University of South-Eastern Norway-USN, Kongsberg, Norway
| | - Zhaochu Yang
- Chongqing Key Laboratory of Micro-Nano Systems and Smart Transduction, Collaborative Innovation Center on Micro-Nano Transduction and Intelligent Eco-Internet of Things, Chongqing Key Laboratory of Colleges and Universities on Micro-Nano Systems Technology and Smart Transducing, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, China
| | - Luís F B A da Silva
- Chongqing Key Laboratory of Micro-Nano Systems and Smart Transduction, Collaborative Innovation Center on Micro-Nano Transduction and Intelligent Eco-Internet of Things, Chongqing Key Laboratory of Colleges and Universities on Micro-Nano Systems Technology and Smart Transducing, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, China
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Zhang J, Zhao T, Yang R, Siridechakorn I, Wang S, Guo Q, Bai Y, Shen HC, Lei X. De novo synthesis, structural assignment and biological evaluation of pseudopaline, a metallophore produced by Pseudomonas aeruginosa. Chem Sci 2019; 10:6635-6641. [PMID: 31367316 PMCID: PMC6625496 DOI: 10.1039/c9sc01405e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 05/27/2019] [Indexed: 12/15/2022] Open
Abstract
Pseudopaline is an opine carboxylate metallophore produced by Pseudomonas aeruginosa for harvesting divalent metals. However, the structure of pseudopaline is not fully elucidated. Herein, we report the first de novo total synthesis and isolation of pseudopaline, which allows unambiguous determination and confirmation of both the absolute and the relative configuration of the natural product. The synthesis highlights an efficient and stereocontrolled route using the asymmetric Tsuji-Trost reaction as the key step. The preliminary structure-activity relationship study indicated that one pseudopaline derivative shows comparable activity to pseudopaline. Moreover, a pseudopaline-fluorescein conjugate was prepared and evaluated, which confirmed that pseudopaline could be transported in the bacteria. Since the metal acquisition by P. aeruginosa is crucial for its ability to cause diseases, our extensive structural and functional studies of pseudopaline may pave the way for developing new therapeutic strategies such as the "Trojan horse" antibiotic conjugate against P. aeruginosa.
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Affiliation(s)
- Jian Zhang
- Beijing National Laboratory for Molecular Sciences , Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Department of Chemical Biology , College of Chemistry and Molecular Engineering , Synthetic and Functional Biomolecules Center , Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China .
| | - Tianhu Zhao
- Beijing National Laboratory for Molecular Sciences , Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Department of Chemical Biology , College of Chemistry and Molecular Engineering , Synthetic and Functional Biomolecules Center , Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China .
| | - Rongwen Yang
- Beijing National Laboratory for Molecular Sciences , Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Department of Chemical Biology , College of Chemistry and Molecular Engineering , Synthetic and Functional Biomolecules Center , Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China .
| | - Ittipon Siridechakorn
- Beijing National Laboratory for Molecular Sciences , Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Department of Chemical Biology , College of Chemistry and Molecular Engineering , Synthetic and Functional Biomolecules Center , Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China .
| | - Sanshan Wang
- Beijing National Laboratory for Molecular Sciences , Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Department of Chemical Biology , College of Chemistry and Molecular Engineering , Synthetic and Functional Biomolecules Center , Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China .
| | - Qianqian Guo
- Beijing National Laboratory for Molecular Sciences , Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Department of Chemical Biology , College of Chemistry and Molecular Engineering , Synthetic and Functional Biomolecules Center , Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China .
| | - Yingjie Bai
- Beijing National Laboratory for Molecular Sciences , Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Department of Chemical Biology , College of Chemistry and Molecular Engineering , Synthetic and Functional Biomolecules Center , Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China .
| | - Hong C Shen
- Roche Innovation Center Shanghai , Roche Pharma Research & Early Development , Shanghai 201203 , China
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences , Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Department of Chemical Biology , College of Chemistry and Molecular Engineering , Synthetic and Functional Biomolecules Center , Peking-Tsinghua Center for Life Sciences , Peking University , Beijing 100871 , China .
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Nosrati R, Dehghani S, Karimi B, Yousefi M, Taghdisi SM, Abnous K, Alibolandi M, Ramezani M. Siderophore-based biosensors and nanosensors; new approach on the development of diagnostic systems. Biosens Bioelectron 2018; 117:1-14. [DOI: 10.1016/j.bios.2018.05.057] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/19/2018] [Accepted: 05/29/2018] [Indexed: 02/06/2023]
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