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Ding L, Wang G, Wang J, Peng Y, Cai S, Khan SU, Cui Z, Zhang X, Wu C, Smyth H. Targeted treatment for biofilm-based infections using PEGylated tobramycin. J Control Release 2024; 372:43-58. [PMID: 38866243 DOI: 10.1016/j.jconrel.2024.06.022] [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: 03/02/2024] [Revised: 05/24/2024] [Accepted: 06/09/2024] [Indexed: 06/14/2024]
Abstract
Chronic infections often involve biofilm-based bacteria, in which the biofilm results in significant resistance against antimicrobial agents and prevents eradication of the infection. The physicochemical barrier presented by the biofilm matrix is a major impediment to the delivery of many antibiotics. Previously, PEGylation has been shown to improve antibiotic penetration into biofilms in vitro. In these studies, PEGylating tobramycin was investigated both in vitro and in vivo. Two distinct PEGylated tobramycin molecules were synthesized (mPEG-SA-Tob and mPEG-AA-Tob). Then, in a P. aeruginosa biofilm in vitro model, we found that mPEG-SA-Tob can operate as a prodrug and showed 7 times more effectiveness than tobramycin (MIC80: 14 μM vs.100 μM). This improved biofilm eradication is attributable to the fact that mPEG-SA-Tob can aid tobramycin to penetrate through the biofilm and overcome the alginate-mediated antibiotic resistance. Finally, we used an in vivo biofilm-based chronic pulmonary infection rat model to confirm the therapeutic impact of mPEG-SA-Tob on biofilm-based chronic lung infection. mPEG-SA-Tob has a better therapeutic impact than tobramycin in that it cannot only stop P. aeruginosa from multiplying in the lungs but can also reduce inflammation caused by infections and prevent a recurrence infection. Overall, our findings show that PEGylated tobramycin is an effective treatment for biofilm-based chronic lung infections.
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Affiliation(s)
- Li Ding
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Guanlin Wang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, Guangdong, PR China
| | - Jieliang Wang
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Ying Peng
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Shihao Cai
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Shafi Ullah Khan
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor, Malaysia; INSERM U1086 ANTICIPE (Interdisciplinary Research Unit for Cancers Prevention and Treatment), BioTICLA Laboratory (Precision Medicine for Ovarian Cancers), Université de Caen Normandie, Caen, France; Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - Zhengrong Cui
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Xuejuan Zhang
- College of Pharmacy, Jinan University, Guangzhou, Guangdong 511443, China.
| | - Chuanbin Wu
- College of Pharmacy, Jinan University, Guangzhou, Guangdong 511443, China
| | - Hugh Smyth
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA.
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Wang J, Zhao J, Nie S, Xie M, Li S. MALDI mass spectrometry in food carbohydrates analysis: A review of recent researches. Food Chem 2023; 399:133968. [DOI: 10.1016/j.foodchem.2022.133968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 08/09/2022] [Accepted: 08/14/2022] [Indexed: 11/17/2022]
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Harvey DJ. ANALYSIS OF CARBOHYDRATES AND GLYCOCONJUGATES BY MATRIX-ASSISTED LASER DESORPTION/IONIZATION MASS SPECTROMETRY: AN UPDATE FOR 2015-2016. MASS SPECTROMETRY REVIEWS 2021; 40:408-565. [PMID: 33725404 DOI: 10.1002/mas.21651] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/24/2020] [Indexed: 06/12/2023]
Abstract
This review is the ninth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2016. Also included are papers that describe methods appropriate to analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation and arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and the enormous impact that MALDI imaging is having. MALDI, although invented over 30 years ago is still an ideal technique for carbohydrate analysis and advancements in the technique and range of applications show no sign of deminishing. © 2020 Wiley Periodicals, Inc.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, United Kingdom
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Loewen P, De Silva PM, Donald LJ, Switala J, Villanueva J, Fita I, Kumar A. KatG-Mediated Oxidation Leading to Reduced Susceptibility of Bacteria to Kanamycin. ACS OMEGA 2018; 3:4213-4219. [PMID: 29732452 PMCID: PMC5928485 DOI: 10.1021/acsomega.8b00356] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 04/10/2018] [Indexed: 06/08/2023]
Abstract
Resistance to antibiotics has become a serious problem for society, and there are increasing efforts to understand the reasons for and sources of resistance. Bacterial-encoded enzymes and transport systems, both innate and acquired, are the most frequent culprits for the development of resistance, although in Mycobacterium tuberculosis, the catalase-peroxidase, KatG, has been linked to the activation of the antitubercular drug isoniazid. While investigating a possible link between aminoglycoside antibiotics and the induction of oxidative bursts, we observed that KatG reduces susceptibility to aminoglycosides. Investigation revealed that kanamycin served as an electron donor for the peroxidase reaction, reducing the oxidized ferryl intermediates of KatG to the resting state. Loss of electrons from kanamycin was accompanied by the addition of a single oxygen atom to the aminoglycoside. The oxidized form of kanamycin proved to be less effective as an antibiotic. Kanamycin inhibited the crystallization of KatG, but the smaller, structurally related glycoside maltose did cocrystallize with KatG, providing a suggestion as to the possible binding site of kanamycin.
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Affiliation(s)
- Peter
C. Loewen
- Department
of Microbiology, University of Manitoba, 45 Chancellor’s Circle, Winnipeg, Manitoba R3T 2N2, Canada
| | - P. Malaka De Silva
- Department
of Microbiology, University of Manitoba, 45 Chancellor’s Circle, Winnipeg, Manitoba R3T 2N2, Canada
| | - Lynda J. Donald
- Department
of Microbiology, University of Manitoba, 45 Chancellor’s Circle, Winnipeg, Manitoba R3T 2N2, Canada
| | - Jacek Switala
- Department
of Microbiology, University of Manitoba, 45 Chancellor’s Circle, Winnipeg, Manitoba R3T 2N2, Canada
| | - Jacylyn Villanueva
- Department
of Microbiology, University of Manitoba, 45 Chancellor’s Circle, Winnipeg, Manitoba R3T 2N2, Canada
| | - Ignacio Fita
- Instituto
de Biologia Molecular de Barcelona (CSIC), Parc Científic de Barcelona, Baldiri i Reixac 10-12, 08028 Barcelona, Spain
| | - Ayush Kumar
- Department
of Microbiology, University of Manitoba, 45 Chancellor’s Circle, Winnipeg, Manitoba R3T 2N2, Canada
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Song HI, Hyeon T, Kim MS, Oh JY, Moon JH. Tracing the Origin of the Anomalous Matrix Suppression in Matrix-assisted Laser Desorption Ionization and Extending the Linear Dynamic Range During Analyte Quantification. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hyo In Song
- Center for Nanoparticle Research; Institute for Basic Science (IBS); Seoul 08826 Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research; Institute for Basic Science (IBS); Seoul 08826 Korea
| | - Myung Soo Kim
- Center for Nanoparticle Research; Institute for Basic Science (IBS); Seoul 08826 Korea
| | - Joo Yeon Oh
- Applied Surface Technology Ascend (ASTA); Suwon-si 07675 Korea
| | - Jeong Hee Moon
- Disease Target Structure Research Center; Korean Research Institute of Bioscience and Biotechnology (KRIBB); Daejeon 34141 Korea
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Study of the possibility of quantitative analysis of N,N,N′,N′-tetra-n-octyldiglycolamide by MALDI mass spectrometry. Russ Chem Bull 2017. [DOI: 10.1007/s11172-017-1845-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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