1
|
Chen Y, Xu Z, Wang X, Sun X, Xu X, Li X, Cheng G. Highly Efficient Photodynamic Hydrogel with AIE-Active Photosensitizers toward Methicillin-Resistant Staphylococcus aureus Ultrafast Imaging and Killing. ACS Biomater Sci Eng 2024; 10:3401-3411. [PMID: 38624061 DOI: 10.1021/acsbiomaterials.4c00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) causes great health hazards to society because most antibiotics are ineffective. Photodynamic treatment (PDT) has been proposed to combat MRSA due to the advantage of imaging-guided no-drug resistance therapy. However, the traditional photosensitizers for PDT are limited by aggregation-caused quenching for imaging and low photodynamic antibacterial efficiency. In this work, we synthesize a new aggregation-induced emission (AIE) photosensitizer (APNO), which can ultrafast distinguish between Gram-positive and Gram-negative bacteria within 3 s by AIE-active photosensitizer imaging. Meanwhile, APNO can generate antibacterial reactive oxygen species under light irradiation, which holds potential for antibacterial PDT. Then, APNO is loaded by PHEAA hydrogel to obtain a highly efficient photodynamic hydrogel (APNO@gel). In vitro results show complete inhibition of MRSA by APNO@gel under lower-power light irradiation. Transcriptome analysis is performed to investigate antibacterial mechanism of APNO@gel. Most importantly, APNO@gel also exhibits significant inhibition and killing ability of MRSA in the MRSA wound infection model, which will further promote rapid wound healing. Therefore, the photodynamic hydrogel provides a promising strategy toward MRSA ultrafast imaging and killing.
Collapse
Affiliation(s)
- Ying Chen
- School of Medical Technology, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Ziqiang Xu
- School of Medical Technology, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Xin Wang
- Department of Molecular Diagnostics, Roche Diagnostics(Shanghai) Limited Company, Shanghai 200131, P. R. China
| | - Xuexue Sun
- Key Laboratory for Medical Tissue Regeneration of Henan Province, Xinxiang Medical University, Xinxiang 453003, P. R. China
| | - Xinhui Xu
- Key Laboratory for Medical Tissue Regeneration of Henan Province, Xinxiang Medical University, Xinxiang 453003, P. R. China
| | - Xiao Li
- School of Medical Technology, Xuzhou Medical University, Xuzhou 221004, P. R. China
| | - Guohui Cheng
- School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, P. R. China
| |
Collapse
|
2
|
Shelef O, Kopp T, Tannous R, Arutkin M, Jospe-Kaufman M, Reuveni S, Shabat D, Fridman M. Enzymatic Activity Profiling Using an Ultrasensitive Array of Chemiluminescent Probes for Bacterial Classification and Characterization. J Am Chem Soc 2024; 146:5263-5273. [PMID: 38362863 PMCID: PMC10910560 DOI: 10.1021/jacs.3c11790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/17/2024]
Abstract
Identification and characterization of bacterial species in clinical and industrial settings necessitate the use of diverse, labor-intensive, and time-consuming protocols as well as the utilization of expensive and high-maintenance equipment. Furthermore, while cutting-edge identification technologies such as mass spectrometry and PCR are highly effective in identifying bacterial pathogens, they fall short in providing additional information for identifying bacteria not present in the databases upon which these methods rely. In response to these challenges, we present a robust and general approach to bacterial identification based on their unique enzymatic activity profiles. This method delivers results within 90 min, utilizing an array of highly sensitive and enzyme-selective chemiluminescent probes. Leveraging our recently developed technology of chemiluminescent luminophores, which emit light under physiological conditions, we have crafted an array of probes designed to rapidly detect various bacterial enzymatic activities. The array includes probes for detecting resistance to the important and large class of β-lactam antibiotics. The analysis of chemiluminescent fingerprints from a diverse range of prominent bacterial pathogens unveiled distinct enzymatic activity profiles for each strain. The reported universally applicable identification procedure offers a highly sensitive and expeditious means to delineate bacterial enzymatic activity fingerprints. This opens new avenues for characterizing and identifying pathogens in research, clinical, and industrial applications.
Collapse
Affiliation(s)
| | | | | | - Maxence Arutkin
- School of Chemistry, Raymond
& Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Moriah Jospe-Kaufman
- School of Chemistry, Raymond
& Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Shlomi Reuveni
- School of Chemistry, Raymond
& Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Doron Shabat
- School of Chemistry, Raymond
& Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Micha Fridman
- School of Chemistry, Raymond
& Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| |
Collapse
|
3
|
Wan Z, Li M, Wang Z, Tan H, Li W, Yu L, Samuel DJ. CellT-Net: A Composite Transformer Method for 2-D Cell Instance Segmentation. IEEE J Biomed Health Inform 2024; 28:730-741. [PMID: 37023158 DOI: 10.1109/jbhi.2023.3265006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Cell instance segmentation (CIS) via light microscopy and artificial intelligence (AI) is essential to cell and gene therapy-based health care management, which offers the hope of revolutionary health care. An effective CIS method can help clinicians to diagnose neurological disorders and quantify how well these deadly disorders respond to treatment. To address the CIS task challenged by dataset characteristics such as irregular morphology, variation in sizes, cell adhesion, and obscure contours, we propose a novel deep learning model named CellT-Net to actualize effective cell instance segmentation. In particular, the Swin transformer (Swin-T) is used as the basic model to construct the CellT-Net backbone, as the self-attention mechanism can adaptively focus on useful image regions while suppressing irrelevant background information. Moreover, CellT-Net incorporating Swin-T constructs a hierarchical representation and generates multi-scale feature maps that are suitable for detecting and segmenting cells at different scales. A novel composite style named cross-level composition (CLC) is proposed to build composite connections between identical Swin-T models in the CellT-Net backbone and generate more representational features. The earth mover's distance (EMD) loss and binary cross entropy loss are used to train CellT-Net and actualize the precise segmentation of overlapped cells. The LiveCELL and Sartorius datasets are utilized to validate the model effectiveness, and the results demonstrate that CellT-Net can achieve better model performance for dealing with the challenges arising from the characteristics of cell datasets than state-of-the-art models.
Collapse
|
4
|
Li W, Li J, Xu H, Gao H, Liu D. Rapid and visual identification of β-lactamase subtypes for precision antibiotic therapy. Nat Commun 2024; 15:719. [PMID: 38267434 PMCID: PMC10808423 DOI: 10.1038/s41467-024-44984-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/09/2024] [Indexed: 01/26/2024] Open
Abstract
The abuse of antibiotics urgently requires rapid identification of drug-resistant bacteria at the point of care (POC). Here we report a visual paper sensor that allows rapid (0.25-3 h) discrimination of the subtypes of β-lactamase (the major cause of bacterial resistance) for precision antibiotic therapy. The sensor exhibits high performance in identifying antibiotic-resistant bacteria with 100 real samples from patients with diverse bacterial infections, demonstrating 100% clinical sensitivity and specificity. Further, this sensor can enhance the accuracy of antibiotic use from 48% empirically to 83%, and further from 50.6% to 97.6% after eliminating fungal infection cases. Our work provides a POC testing platform for guiding effective management of bacterial infections in both hospital and community settings.
Collapse
Affiliation(s)
- Wenshuai Li
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Centers for Cell Responses and New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, China
- Tianjin Key Laboratory of Molecular Recognition and Biosensing, Nankai University, Tianjin, 300071, China
| | - Jingqi Li
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Centers for Cell Responses and New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, China
- Tianjin Key Laboratory of Molecular Recognition and Biosensing, Nankai University, Tianjin, 300071, China
| | - Hua Xu
- Department of Intensive Care Unit, Key Laboratory for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, School of Medicine, Nankai University, Tianjin, 300071, China
| | - Hongmei Gao
- Department of Intensive Care Unit, Key Laboratory for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, School of Medicine, Nankai University, Tianjin, 300071, China
| | - Dingbin Liu
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Centers for Cell Responses and New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, China.
- Tianjin Key Laboratory of Molecular Recognition and Biosensing, Nankai University, Tianjin, 300071, China.
| |
Collapse
|
5
|
Modi K, Modi K, Bhatt K, Patel N, Parikh J, Mohan B, Bajaj N, Vyas A, Kothari F. Illuminating Bacterial Contamination in Water Sources: The Power of Fluorescence-Based Methods. J Fluoresc 2024; 34:139-147. [PMID: 37310589 DOI: 10.1007/s10895-023-03297-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/05/2023] [Indexed: 06/14/2023]
Abstract
Bacterial contamination of water sources is a significant public health concern, and therefore, it is important to have accurate and efficient methods for monitoring bacterial concentration in water samples. Fluorescence-based methods, such as SYTO 9 and PI staining, have emerged as a promising approach for real-time bacterial quantification. In this review, we discuss the advantages of fluorescence-based methods over other bacterial quantification methods, including the plate count method and the most probable number (MPN) method. We also examine the utility of fluorescence arrays and linear regression models in improving the accuracy and reliability of fluorescence-based methods. Overall, fluorescence-based methods offer a faster, more sensitive, and more specific option for real-time bacterial quantification in water samples.
Collapse
Affiliation(s)
- Kinjal Modi
- Department of Chemistry, Faculty of Science, Ganpat University, Kherva, Mehsana, 384012, Gujarat, India
| | - Krunal Modi
- Department of Humanity and Sciences, School of engineering, Indrashil university, Kadi, Mehsana, 382740, Gujarat, India.
| | - Keyur Bhatt
- Department of Chemistry, Faculty of Science, Ganpat University, Kherva, Mehsana, 384012, Gujarat, India.
| | - Nihal Patel
- Department of Chemistry, Faculty of Science, Ganpat University, Kherva, Mehsana, 384012, Gujarat, India
| | - Jaymin Parikh
- Department of Chemistry, Faculty of Science, Ganpat University, Kherva, Mehsana, 384012, Gujarat, India
| | - Brij Mohan
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa, 1049-001, Portugal
| | - Namrata Bajaj
- Department of Humanity and Sciences, School of engineering, Indrashil university, Kadi, Mehsana, 382740, Gujarat, India
| | - Amish Vyas
- Department of Chemical and Biochemical Engineering, School of Engineering, Indrashil University, Mehsana, 382740, Gujarat, India
| | - Flory Kothari
- Department of Biotechnology, Faculty of Science, Ganpat University, Kherva, Mehsana, 384012, Gujarat, India
| |
Collapse
|
6
|
Chan KH, Wang Y, Zheng BX, Long W, Feng X, Wong WL. RNA-Selective Small-Molecule Ligands: Recent Advances in Live-Cell Imaging and Drug Discovery. ChemMedChem 2023; 18:e202300271. [PMID: 37649155 DOI: 10.1002/cmdc.202300271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/13/2023] [Accepted: 08/24/2023] [Indexed: 09/01/2023]
Abstract
RNA structures, including those formed from coding and noncoding RNAs, alternative to protein-based drug targets, could be a promising target of small molecules for drug discovery against various human diseases, particularly in anticancer, antibacterial and antivirus development. The normal cellular activity of cells is critically dependent on the function of various RNA molecules generated from DNA transcription. Moreover, many studies support that mRNA-targeting small molecules may regulate the synthesis of disease-related proteins via the non-covalent mRNA-ligand interactions that do not involve gene modification. RNA-ligand interaction is thus an attractive approach to address the challenge of "undruggable" proteins in drug discovery because the intracellular activity of these proteins is hard to be suppressed with small molecule ligands. We selectively surveyed a specific area of RNA structure-selective small molecule ligands in fluorescence live cell imaging and drug discovery because the area was currently underexplored. This state-of-the-art review thus mainly focuses on the research published within the past three years and aims to provide the most recent information on this research area; hopefully, it could be complementary to the previously reported reviews and give new insights into the future development on RNA-specific small molecule ligands for live cell imaging and drug discovery.
Collapse
Affiliation(s)
- Ka Hin Chan
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, SAR 999077, P. R. China
| | - Yakun Wang
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Bo-Xin Zheng
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, SAR 999077, P. R. China
| | - Wei Long
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, SAR 999077, P. R. China
| | - Xinxin Feng
- State Key Laboratory of Chem-/Bio-Sensing and Chemometrics, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology and School of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Wing-Leung Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, SAR 999077, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| |
Collapse
|
7
|
Hawtrey T, New EJ. Molecular probes for fluorescent sensing of metal ions in non-mammalian organisms. Curr Opin Chem Biol 2023; 74:102311. [PMID: 37146433 DOI: 10.1016/j.cbpa.2023.102311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/16/2023] [Accepted: 03/29/2023] [Indexed: 05/07/2023]
Abstract
While metal ions play an important role in the proper functioning of all life, many questions remain unanswered about exactly how different metals contribute to health and disease. The development of fluorescent probes, which respond to metals, has allowed greater understanding of the cellular location, concentration and speciation of metals in living systems, giving a new appreciation of their function. While the focus of studies using these fluorescent tools has largely been on mammalian organisms, there has been relatively little application of these powerful tools to other organisms. In this review, we highlight recent examples of molecular fluorophores, which have been applied to sensing metals in non-mammalian organisms.
Collapse
Affiliation(s)
- Tom Hawtrey
- School of Chemistry, The University of Sydney, NSW 2006, Australia; Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, NSW 2006, Australia.
| | - Elizabeth J New
- School of Chemistry, The University of Sydney, NSW 2006, Australia; Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute (Sydney Nano), The University of Sydney, NSW 2006, Australia.
| |
Collapse
|
8
|
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] [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.
Collapse
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.
| |
Collapse
|
9
|
Liu Q, Zhao M, Song C, Sun J, Tao J, Sun B, Jiang J. Click Triazole as a Linker for Pretargeting Strategies: Synthesis, Docking Investigations, Fluorescence Diagnosis, and Antibacterial Action Studies. Molecules 2023; 28:molecules28062758. [PMID: 36985730 PMCID: PMC10057994 DOI: 10.3390/molecules28062758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
In this study, three compounds A1, A2, and A3 and fluorescent probes T1, T2, T3, and T4 were designed and synthesized. 1H NMR, 13C NMR, and MS characterization and elemental analysis were used to confirm A1-A3 and T1-T4. A1-A3 and T1-T4 formed diagnostic molecules by "click" reactions. A1-A3 and T1-T4 did not significantly increase cell death at concentrations of 80 μmol/L. Preliminary screening of the compounds for antibacterial activity revealed that A2 has better antibacterial activity against Agrobacterium tumefaciens. The synthesized compounds and fluorescent probes can be targeted and combined in the physiological condition to form diagnostic molecules for fluorescence detection of Agrobacterium tumefaciens. The binding sites of A1-A3 were deduced theoretically using the AutoDock Vina software docking tool. Further study of the mechanism of the antibacterial action of these compounds is likely to identify new agents against resistant bacterial strains.
Collapse
Affiliation(s)
- Qian Liu
- Department of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - Mingxia Zhao
- Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China
| | - Cairong Song
- Department of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - Jiankang Sun
- Department of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
| | - Jiali Tao
- Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China
| | - Bin Sun
- Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China
| | - Junbing Jiang
- Department of Veterinary Medicine, Shanxi Agricultural University, Jinzhong 030801, China
- Department of Mining Engineering, Shanxi Institute of Engineering and Technology, Yangquan 045000, China
| |
Collapse
|
10
|
Zhang D, Wang S, Yang F, Qi Q, Li Y, Huang W. A fluorescent probe for alkylating agents and its quantification of triflate as a genotoxic impurity. Chem Commun (Camb) 2023; 59:2130-2133. [PMID: 36723292 DOI: 10.1039/d2cc06221f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The responses of a reaction-based fluorescent probe BI-Py towards alkyl halide, epoxide, carbonate, sulfate, sulphonate and triflate were evaluated and the probe achieved selective detection of ethyl triflate in acetonitrile with a LOD of 1.08 μM. BI-Py exhibited great potential for detecting triflate as a genotoxic impurity in drug substances.
Collapse
Affiliation(s)
- Dan Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Sifan Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Fangxi Yang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Qingrong Qi
- West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Yanfang Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Wencai Huang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China.
| |
Collapse
|
11
|
Li W, Wang J, Li C, Zong Z, Zhao J, Gao H, Liu D. Achieving Ultrasensitive Chromogenic Probes for Rapid, Direct Detection of Carbapenemase-Producing Bacteria in Sputum. JACS AU 2023; 3:227-238. [PMID: 36711106 PMCID: PMC9875220 DOI: 10.1021/jacsau.2c00607] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/12/2022] [Accepted: 12/16/2022] [Indexed: 06/18/2023]
Abstract
Carbapenemase-producing bacteria (CPB) stand as the most dangerous "superbugs" in the clinic. Rapid point-of-care (POC) detection of CPB in clinical samples is key to timely and effective infection management. We herein report the first ultrasensitive chromogenic probe that allows direct POC detection of CPB in clinical sputum samples at a sample-to-result time of less than 15 min. This chromogenic probe is modularly designed by conjugating the carbapenem core with a benzene derivative bearing an electronegativity-tunable substituent. Unexpectedly high sensitivity was achieved simply by choosing strong electron-withdrawing substituents, such as -N+(CH3)3, without resorting to complex molecular design. Through integrating the probes with a portable paper chip, 24 out of 80 clinical sputum samples from sepsis patients with lung infections were quickly diagnosed as CPB-positive, exhibiting 100% clinical sensitivity and specificity. This low-cost paper chip assay can be readily performed on-site, breaking through the dilemma of rapid CPB detection, especially in resource-limited settings.
Collapse
Affiliation(s)
- Wenshuai Li
- State
Key Laboratory of Medicinal Chemical Biology, Research Center for
Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition
and Biosensing, Frontiers Science Center for New Organic Matter, College
of Chemistry, Nankai University, Tianjin300071, China
| | - Jingjing Wang
- Department
of Intensive Care Unit, Key Laboratory for Critical Care Medicine
of the Ministry of Health, Emergency Medicine Research Institute,
Tianjin First Center Hospital, School of Medicine, Nankai University, Tianjin300071, China
| | - Chen Li
- College
of Arts and Sciences, Shanxi Agricultural
University, Taigu030801, China
| | - Zhiyou Zong
- State
Key Laboratory of Medicinal Chemical Biology, Research Center for
Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition
and Biosensing, Frontiers Science Center for New Organic Matter, College
of Chemistry, Nankai University, Tianjin300071, China
| | - Jinzhong Zhao
- College
of Arts and Sciences, Shanxi Agricultural
University, Taigu030801, China
| | - Hongmei Gao
- Department
of Intensive Care Unit, Key Laboratory for Critical Care Medicine
of the Ministry of Health, Emergency Medicine Research Institute,
Tianjin First Center Hospital, School of Medicine, Nankai University, Tianjin300071, China
| | - Dingbin Liu
- State
Key Laboratory of Medicinal Chemical Biology, Research Center for
Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition
and Biosensing, Frontiers Science Center for New Organic Matter, College
of Chemistry, Nankai University, Tianjin300071, China
| |
Collapse
|
12
|
Tan W, Zhang Q, Hong P, Xu B. A Self-Assembling Probe for Imaging the States of Golgi Apparatus in Live Single Cells. Bioconjug Chem 2022; 33:1983-1988. [PMID: 35312281 PMCID: PMC9489815 DOI: 10.1021/acs.bioconjchem.2c00084] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Despite the enormous progress in genomics and proteomics, it is still challenging to assess the states of organelles in living cells with high spatiotemporal resolution. Based on our recent finding of enzyme-instructed self-assembly of a thiophosphopeptide that targets the Golgi Apparatus (GA) instantly, we use the thiophosphopeptide, which is enzymatically responsive and redox active, as an integrative probe for revealing the state of the GA of live cells at the single cell level. By imaging the probe in the GA of live cells over time, our results show that the accumulation of the probe at the GA depends on cell types. By comparison to a conventional Golgi probe, this self-assembling probe accumulates at the GA much faster and are sensitive to the expression of alkaline phosphatases. In addition, subtle changes of the fluorophore results in slightly different GA responses. This work illustrates a novel class of active molecular probes that combine enzyme-instructed self-assembly and redox reaction for high-resolution imaging of the states of subcellular organelles over a large area and extended times.
Collapse
Affiliation(s)
- Weiyi Tan
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA
| | - Qiuxin Zhang
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA
| | - Pengyu Hong
- Department of Computer Science, Brandeis University, 415 South St., Waltham, MA 02453, USA
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA
| |
Collapse
|
13
|
Yu X, Ouyang W, Qiu H, Zhang Z, Wang Z, Xing B. Detection of Reactive Oxygen and Nitrogen Species by Upconversion Nanoparticle‐Based Near‐Infrared Nanoprobes: Recent Progress and Perspectives. Chemistry 2022; 28:e202201966. [DOI: 10.1002/chem.202201966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaokan Yu
- Department of Chemistry Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province Zhejiang Sci-Tech University Hangzhou 310018 China
| | - Wenao Ouyang
- Department of Chemistry Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province Zhejiang Sci-Tech University Hangzhou 310018 China
| | - Hao Qiu
- Department of Chemistry Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province Zhejiang Sci-Tech University Hangzhou 310018 China
| | - Zhijun Zhang
- Department of Chemistry Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province Zhejiang Sci-Tech University Hangzhou 310018 China
| | - Zhimin Wang
- Advanced Research Institute of Multidisciplinary Sciences Beijing Institute of Technology Beijing 10008 China
| | - Bengang Xing
- Division of Chemistry and Biological Chemistry School of Chemistry Chemical Engineering & Biotechnology Nanyang Technological University Singapore 637371 Singapore
| |
Collapse
|
14
|
Zhong CJ, Hu XL, Yang XL, Gan HQ, Yan KC, Shu FT, Wei P, Gong T, Luo PF, James TD, Chen ZH, Zheng YJ, He XP, Xia ZF. Metabolically Specific In Situ Fluorescent Visualization of Bacterial Infection on Wound Tissues. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39808-39818. [PMID: 36005548 DOI: 10.1021/acsami.2c10115] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The ability to effectively detect bacterial infection in human tissues is important for the timely treatment of the infection. However, traditional techniques fail to visualize bacterial species adhered to host cells in situ in a target-specific manner. Dihydropteroate synthase (DHPS) exclusively exists in bacterial species and metabolically converts p-aminobenzoic acid (PABA) to folic acid (FA). By targeting this bacterium-specific metabolism, we have developed a fluorescent imaging probe, PABA-DCM, based on the conjugation of PABA with a long-wavelength fluorophore, dicyanomethylene 4H-pyran (DCM). We confirmed that the probe can be used in the synthetic pathway of a broad spectrum of Gram-positive and negative bacteria, resulting in a significantly extended retention time in bacterial over mammalian cells. We validated that DHPS catalytically introduces a dihydropteridine group to the amino end of the PABA motif of PABA-DCM, and the resulting adduct leads to an increase in the FA levels of bacteria. We also constructed a hydrogel dressing containing PABA-DCM and graphene oxide (GO), termed PABA-DCM@GO, that achieves target-specific fluorescence visualization of bacterial infection on the wounded tissues of mice. Our research paves the way for the development of fluorescent imaging agents that target species-conserved metabolic pathways of microorganisms for the in situ monitoring of infections in human tissues.
Collapse
Affiliation(s)
- Chen-Jian Zhong
- Department of Burn Surgery and Wound Repair, Fujian Burn Medical Center, Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian, PR China
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, PR China
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai 200433, China
| | - Xi-Le Hu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, Frontiers Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Xiao-Lan Yang
- Department of Burn Surgery and Wound Repair, Fujian Burn Medical Center, Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian, PR China
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, PR China
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai 200433, China
- Department of Burn Surgery and Wound Repair, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362001, Fujian, China
| | - Hui-Qi Gan
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, Frontiers Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Kai-Cheng Yan
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, Frontiers Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Fu-Ting Shu
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, PR China
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai 200433, China
| | - Pei Wei
- Department of Burn Surgery and Wound Repair, Fujian Burn Medical Center, Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian, PR China
| | - Teng Gong
- Department of Burn Surgery and Wound Repair, Fujian Burn Medical Center, Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian, PR China
| | - Peng-Fei Luo
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, PR China
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai 200433, China
| | - Tony D James
- Department of Chemistry, University of Bath, Bath BA27AY, United Kingdom
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Zhao-Hong Chen
- Department of Burn Surgery and Wound Repair, Fujian Burn Medical Center, Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian, PR China
| | - Yong-Jun Zheng
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, PR China
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai 200433, China
| | - Xiao-Peng He
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, Frontiers Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
- The International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Hospital, Shanghai 200438, China
- National Center for Liver Cancer, Shanghai 200438, China
| | - Zhao-Fan Xia
- Department of Burn Surgery and Wound Repair, Fujian Burn Medical Center, Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Medical University Union Hospital, Fuzhou 350001, Fujian, PR China
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, PR China
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai 200433, China
| |
Collapse
|
15
|
Zhang Z, Zhang D, Qi Q, Li Z, Huang W. A colorimetric and fluorometric probe for phenylhydrazine and its application in real samples. Chem Commun (Camb) 2022; 58:8540-8543. [PMID: 35815642 DOI: 10.1039/d2cc02348b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescent probe for phenylhydrazine detection was developed with aldehyde as the recognition group and good selectivity towards phenylhydrazine over hydrazine, hydroxylamine and other amines was observed. Its application in real water samples and fast visualization of phenylhydrazine using a probe-loaded paper strip were demonstrated.
Collapse
Affiliation(s)
- Zichang Zhang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China.
| | - Dan Zhang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China.
| | - Qingrong Qi
- West China School of Pharmacy, Sichuan University, Chengdu, 610041, P. R. China
| | - Zicheng Li
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China.
| | - Wencai Huang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China.
| |
Collapse
|
16
|
Chi Y, Shi M, Wu Y, Wu Y, Chang Y, Liu M. Single bacteria detection by droplet DNAzyme-coupled rolling circle amplification. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:2244-2248. [PMID: 35611869 DOI: 10.1039/d2ay00656a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We described a new system termed droplet DNAzyme-coupled rolling circle amplification (dDRCA) that can selectively detect bacteria from clinical urine samples with single-cell sensitivity within 1.5 h compared with the several hours needed for traditionally used culture-based methods.
Collapse
Affiliation(s)
- Yanchen Chi
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| | - Meng Shi
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| | - Yanfang Wu
- School of Chemistry and Australian Centre for Nano Medicine, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yunping Wu
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| | - Yangyang Chang
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| | - Meng Liu
- School of Environmental Science and Technology, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), Dalian University of Technology, Dalian POCT Laboratory, Dalian, 116024, China.
| |
Collapse
|