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Fang P, Yu S, Ma X, Hou L, Li T, Gao K, Wang Y, Sun Q, Shang L, Liu Q, Nie M, Yang J. Applications of tandem mass spectrometry (MS/MS) in antimicrobial peptides field: Current state and new applications. Heliyon 2024; 10:e28484. [PMID: 38601527 PMCID: PMC11004759 DOI: 10.1016/j.heliyon.2024.e28484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/12/2024] Open
Abstract
Antimicrobial peptides (AMPs) constitute a group of small molecular peptides that exhibit a wide range of antimicrobial activity. These peptides are abundantly present in the innate immune system of various organisms. Given the rise of multidrug-resistant bacteria, microbiological studies have identified AMPs as potential natural antibiotics. In the context of antimicrobial resistance across various human pathogens, AMPs hold considerable promise for clinical applications. However, numerous challenges exist in the detection of AMPs, particularly by immunological and molecular biological methods, especially when studying of newly discovered AMPs in proteomics. This review outlines the current status of AMPs research and the strategies employed in their development, considering resent discoveries and methodologies. Subsequently, we focus on the advanced techniques of mass spectrometry for the quantification of AMPs in diverse samples, and analyzes their application, advantages, and limitations. Additionally, we propose suggestions for the future development of tandem mass spectrometry for the detection of AMPs.
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Affiliation(s)
- Panpan Fang
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Songlin Yu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, PR China
| | - Xiaoli Ma
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, PR China
| | - Lian Hou
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, PR China
| | - Tiewei Li
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Kaijie Gao
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Yingyuan Wang
- Department of Neonatal Intensive Care Unit, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Qianqian Sun
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Lujun Shang
- Department of Laboratory Medicine, Guizhou Provincial People's Hospital, Guiyang, 550004, PR China
| | - Qianqian Liu
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Manjie Nie
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Junmei Yang
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
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Hanafin PO, Nation RL, Scheetz MH, Zavascki AP, Sandri AM, Kwa AL, Cherng BPZ, Kubin CJ, Yin MT, Wang J, Li J, Kaye KS, Rao GG. Assessing the predictive performance of population pharmacokinetic models for intravenous polymyxin B in critically ill patients. CPT Pharmacometrics Syst Pharmacol 2021; 10:1525-1537. [PMID: 34811968 PMCID: PMC8674003 DOI: 10.1002/psp4.12720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 12/23/2022] Open
Abstract
Polymyxin B (PMB) has reemerged as a last‐line therapy for infections caused by multidrug‐resistant gram‐negative pathogens, but dosing is challenging because of its narrow therapeutic window and pharmacokinetic (PK) variability. Population PK (POPPK) models based on suitably powered clinical studies with appropriate sampling strategies that take variability into consideration can inform PMB dosing to maximize efficacy and minimize toxicity and resistance. Here we reviewed published PMB POPPK models and evaluated them using an external validation data set (EVD) of patients who are critically ill and enrolled in an ongoing clinical study to assess their utility. Seven published POPPK models were employed using the reported model equations, parameter values, covariate relationships, interpatient variability, parameter covariance, and unexplained residual variability in NONMEM (Version 7.4.3). The predictive ability of the models was assessed using prediction‐based and simulation‐based diagnostics. Patient characteristics and treatment information were comparable across studies and with the EVD (n = 40), but the sampling strategy was a main source of PK variability across studies. All models visually and statistically underpredicted EVD plasma concentrations, but the two‐compartment models more accurately described the external data set. As current POPPK models were inadequately predictive of the EVD, creation of a new POPPK model based on an appropriately powered clinical study with an informed PK sampling strategy would be expected to improve characterization of PMB PK and identify covariates to explain interpatient variability. Such a model would support model‐informed precision dosing frameworks, which are urgently needed to improve PMB treatment efficacy, limit resistance, and reduce toxicity in patients who are critically ill.
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Affiliation(s)
- Patrick O Hanafin
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Roger L Nation
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Marc H Scheetz
- Department of Pharmacy Practice and Pharmacometric Center of Excellence, Midwestern University Chicago College of Pharmacy, Downers Grove, Illinois, USA
| | - Alexandre P Zavascki
- Department of Internal Medicine, Medical School, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Infectious Diseases Service, Hospital Moinhos de Vento, Porto Alegre, Brazil
| | - Ana M Sandri
- Infectious Diseases Service, Hospital São Lucas da Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Andrea L Kwa
- Department of Pharmacy, Singapore General Hospital, Singapore, Singapore.,Emerging Infectious Diseases, Duke-National University of Singapore Medical School, Singapore, Singapore
| | - Benjamin P Z Cherng
- Department of Infectious Diseases, Singapore General Hospital, Singapore, Singapore
| | - Christine J Kubin
- New York-Presbyterian Hospital/Columbia University Irving Medical Center, New York, New York, USA
| | - Michael T Yin
- Division of Infectious Diseases, Department of Internal Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Jiping Wang
- Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Jian Li
- Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Keith S Kaye
- Division of Infectious Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Gauri G Rao
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Dafopoulou K, Vourli S, Tsakris A, Pournaras S. An update on polymyxin susceptibility testing methods for Acinetobacter baumannii. Expert Rev Anti Infect Ther 2019; 17:699-713. [DOI: 10.1080/14787210.2019.1667230] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Konstantina Dafopoulou
- Department of Microbiology, Medical School, National and Kapodistrian University of Athens, Greece
- Laboratory of Clinical Microbiology, Attikon University Hospital, Athens, Greece
| | - Sophia Vourli
- Laboratory of Clinical Microbiology, Attikon University Hospital, Athens, Greece
| | - Athanasios Tsakris
- Department of Microbiology, Medical School, National and Kapodistrian University of Athens, Greece
| | - Spyros Pournaras
- Department of Microbiology, Medical School, National and Kapodistrian University of Athens, Greece
- Laboratory of Clinical Microbiology, Attikon University Hospital, Athens, Greece
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Antimicrobial Susceptibility Testing for Polymyxins: Challenges, Issues, and Recommendations. J Clin Microbiol 2019; 57:JCM.01390-18. [PMID: 30541939 DOI: 10.1128/jcm.01390-18] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Polymyxins, including polymyxin B and polymyxin E (colistin), are now increasingly being used worldwide to treat patients with multidrug-resistant (MDR) Gram-negative bacterial infections. This necessitates that laboratories employ an accurate and reliable method for the routine performance of polymyxin susceptibility testing. A number of reasons have accounted for the difficulties with susceptibility testing for the polymyxins, including their multicomponent composition, poor diffusion in the agar medium, adsorption to microtiter plates, the lack of a reliable susceptibility test, the lack of a specific breakpoint from professional organizations, the synergistic effect of polysorbate 80, and the development of heteroresistance. This minireview discusses such problems that impact the results of currently available susceptibility testing methods. We also provide emerging concepts on mechanisms of polymyxin resistance, including chromosomally and plasmid-mediated mcr-related resistance. Broad-range investigations on such critical issues in relation to polymyxins can be beneficial for the implementation of effective treatment against MDR Gram-negative bacterial infections.
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Zhou Z, Ergene C, Palermo EF. Synthetic mimics of cyclic antimicrobial peptides via templated ring-opening metathesis (TROM). Polym Chem 2019. [DOI: 10.1039/c9py01271k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We utilized a templated ring-opening metathesis (TROM) strategy to synthesize a series of precision macrocyclic olefins, each containing two, three or four repeating units of a cyclooctene with pendant carboxylic acid side chains.
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Affiliation(s)
- Zhe Zhou
- Materials Science and Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
| | - Cansu Ergene
- Materials Science and Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
| | - Edmund F. Palermo
- Materials Science and Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
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