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Lehner AF, Johnson SD, Dirikolu L, Johnson M, Buchweitz JP. Mass spectrometric methods for evaluation of voriconazole avian pharmacokinetics and the inhibition of its cytochrome P450-induced metabolism. Toxicol Mech Methods 2024; 34:654-668. [PMID: 38389412 DOI: 10.1080/15376516.2024.2322675] [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: 12/19/2023] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Invasive fungal aspergillosis is a leading cause of morbidity and mortality in many species including avian species such as common ravens (Corvus corax). Methods were developed for mass spectral determination of voriconazole in raven plasma as a means of determining pharmacokinetics of this antifungal agent. Without further development, GC/MS/MS (gas chromatography-tandem quadrupole mass spectrometry) proved to be inferior to LC/MS/MS (liquid chromatography-tandem quadrupole mass spectrometry) for measurement of voriconazole levels in treated raven plasma owing to numerous heat-induced breakdown products despite protection of voriconazole functional groups with trimethylsilyl moieties. LC/MS/MS measurement revealed in multi-dosing experiments that the ravens were capable of rapid or ultrarapid metabolism of voriconazole. This accounted for the animals' inability to raise the drug into the therapeutic range regardless of dosing regimen unless cytochrome P450 (CYP) inhibitors were included. Strategic selection of CYP inhibitors showed that of four selected compounds including cimetidine, enrofloxacin and omeprazole, only ciprofloxacin (Cipro) was able to maintain voriconazole levels in the therapeutic range until the end of the dosing period. The optimal method of administration involved maintenance doses of voriconazole at 6 mg/kg and ciprofloxacin at 20 mg/kg. Higher doses of voriconazole such as 18 mg/kg were also tenable without apparent induction of toxicity. Although most species employ CYP2C19 to metabolize voriconazole, it was necessary to speculate that voriconazole might be subject to metabolism by CYP1A2 in the ravens to explain the utility of ciprofloxacin, a previously unknown enzymatic route. Finally, despite its widespread catalog of CYP inhibitions including CYP1A2 and CYP2C19, cimetidine may be inadequate at enhancing voriconazole levels owing to its known effects on raising gastric pH, a result that may limit voriconazole solubility.
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Affiliation(s)
- Andreas F Lehner
- Section of Toxicology, Michigan State University Veterinary Diagnostic Laboratory, Michigan State University, East Lansing, MI, USA
| | - Sharmie D Johnson
- Department of Veterinary Services, Wildlife World Zoo & Aquarium & Safari Park, Litchfield Park, AZ, USA
| | - Levent Dirikolu
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
| | - Margaret Johnson
- Section of Toxicology, Michigan State University Veterinary Diagnostic Laboratory, Michigan State University, East Lansing, MI, USA
| | - John P Buchweitz
- Section of Toxicology, Michigan State University Veterinary Diagnostic Laboratory, Michigan State University, East Lansing, MI, USA
- Department of Pathobiology & Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
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2
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Weed RA, Campbell G, Brown L, May K, Sargent D, Sutton E, Burdette K, Rider W, Baker ES, Enders JR. Non-Targeted PFAS Suspect Screening and Quantification of Drinking Water Samples Collected through Community Engaged Research in North Carolina's Cape Fear River Basin. TOXICS 2024; 12:403. [PMID: 38922083 PMCID: PMC11209479 DOI: 10.3390/toxics12060403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024]
Abstract
A community engaged research (CER) approach was used to provide an exposure assessment of poly- and perfluorinated (PFAS) compounds in North Carolina residential drinking water. Working in concert with community partners, who acted as liaisons to local residents, samples were collected by North Carolina residents from three different locations along the Cape Fear River basin: upper, middle, and lower areas of the river. Residents collected either drinking water samples from their homes or recreational water samples from near their residence that were then submitted by the community partners for PFAS analysis. All samples were processed using weak anion exchange (WAX) solid phase extraction and analyzed using a non-targeted suspect screening approach as well as a quantitative approach that included a panel of 45 PFAS analytes, several of which are specific to chemical industries near the collection site locations. The non-targeted approach, which utilized a suspect screening list (obtained from EPA CompTox database) identified several PFAS compounds at a level two confidence rating (Schymanski scale); compounds identified included a fluorinated insecticide, a fluorinated herbicide, a PFAS used in polymer chemistry, and another that is used in battery production. Notably, at several locations, PFOA (39.8 ng/L) and PFOS (205.3 ng/L) were at levels that exceeded the mandatory EPA maximum contaminant level (MCL) of 4 ng/L. Additionally, several sites had detectable levels of PFAS that are unique to a local chemical manufacturer. These findings were communicated back to the community partners who then disseminated this information to the local residents to help empower and aid in making decisions for reducing their PFAS exposure.
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Affiliation(s)
- Rebecca A. Weed
- Molecular Education, Technology and Research Innovation Center, North Carolina State University, Raleigh, NC 27607, USA
| | - Grace Campbell
- Center for Environmental and Health Effects of PFAS, North Carolina State University, Raleigh, NC 27607, USA (L.B.)
| | - Lacey Brown
- Center for Environmental and Health Effects of PFAS, North Carolina State University, Raleigh, NC 27607, USA (L.B.)
| | - Katlyn May
- Center for Environmental and Health Effects of PFAS, North Carolina State University, Raleigh, NC 27607, USA (L.B.)
| | - Dana Sargent
- Cape Fear River Watch, Wilmington, NC 28401, USA; (D.S.); (K.B.)
| | | | - Kemp Burdette
- Cape Fear River Watch, Wilmington, NC 28401, USA; (D.S.); (K.B.)
| | - Wayne Rider
- Sustainable Sandhills, Fayetteville, NC 28303, USA;
| | - Erin S. Baker
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
| | - Jeffrey R. Enders
- Molecular Education, Technology and Research Innovation Center, North Carolina State University, Raleigh, NC 27607, USA
- Department of Biological Sciences, North Carolina State University, Raleigh, NC 27607, USA
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Rama A, Govindan I, Hebbar S, Chaturvedi A, Rani U, Naha A. Advancing posaconazole quantification analysis with a new reverse-phase HPLC method in its bulk and marketed dosage form. F1000Res 2023; 12:468. [PMID: 37396051 PMCID: PMC10314186 DOI: 10.12688/f1000research.132841.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/23/2023] [Indexed: 07/04/2023] Open
Abstract
Introduction: Posaconazole is a widely used antifungal drug, and its accurate quantification is essential for quality control and assessment of its pharmaceutical products. This study aimed to develop and validate a reverse-phase high-performance liquid chromatography (HPLC) analytical method for quantifying Posaconazole in bulk and dosage form. Methods: The HPLC method was developed and validated based on International Conference on Harmonisation (ICH) guidelines. The developed method was then applied to quantify Posaconazole in a marketed tablet formulation. The method's specificity, linearity, precision, accuracy, robustness, and stability were evaluated. Results: The developed HPLC method showed good linearity over a 2-20 μg/mL concentration range. The percentage recovery of Posaconazole from the bulk and marketed formulations was found to be 99.01% and 99.05%, respectively. The intra-day and inter-day precisions were less than 1%, and the method was stable under different conditions. The HPLC method was successfully applied to quantify Posaconazole in the marketed formulation. Conclusion: The developed and validated HPLC method is reliable and efficient for analyzing Posaconazole in bulk and dosage forms. The method's accuracy, precision, specificity, linearity, robustness, and stability demonstrate its effectiveness. The method can be used for the quality control and assessment of Posaconazole-containing pharmaceutical products.
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Affiliation(s)
- Annamalai Rama
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Induja Govindan
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Srinivas Hebbar
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Abhishek Chaturvedi
- Division of Biochemistry, Department of Basic Medical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Usha Rani
- Department of Social Health and Innovation, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Anup Naha
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
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4
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Bruns S, Wienhausen G, Scholz-Böttcher B, Wilkes H. Simultaneous quantification of all B vitamins and selected biosynthetic precursors in seawater and bacteria by means of different mass spectrometric approaches. Anal Bioanal Chem 2022; 414:7839-7854. [PMID: 36195729 PMCID: PMC9568461 DOI: 10.1007/s00216-022-04317-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/28/2022]
Abstract
B vitamins have high microbiological relevance in the marine environment, but their very low concentrations and the chemical heterogeneity of the individual vitamins make their analysis challenging. Mass spectrometric analysis of B vitamins in environmental samples at trace levels has mainly been performed using triple quadrupole mass spectrometers operated in targeted analysis mode. The development of such a method can be laborious and error prone. Additionally, high-resolution mass spectrometers can be used to measure a sample in full scan mode and subsequently search the total ion current chromatogram for extracted ion chromatograms of targeted vitamins. Three different analytical approaches for trace analysis of all B vitamins and some of their biosynthetic precursors were optimized and compared on two different mass spectrometers. A triple quadrupole mass spectrometer in selected reaction monitoring mode, and a high-resolution orbitrap mass spectrometer in parallel reaction monitoring, as well as in full scan mode were employed. Detection limits down to 10 ng/L were achieved with all three techniques. The methods were applied to a marine water sample from the North Sea and to the cell extract of a bacterial culture of Phaeobacter inhibens. Most vitamins and precursors were found in the bacterial cell extract and the seawater sample with all three measuring methods. The results of this study emphasize that, in addition to tandem mass spectrometry, high-resolution full scan mass spectrometry is a promising technique for the simultaneous detection of structurally diverse B vitamins in complex natural samples. This enables highly sensitive measurements without loss of detailed mass spectrometric information, which is inevitable when using a triple quadrupole system in MS/MS mode.
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Affiliation(s)
- Stefan Bruns
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany
| | - Gerrit Wienhausen
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany
| | - Barbara Scholz-Böttcher
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany
| | - Heinz Wilkes
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany.
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Identification and Quantification of Urinary Microbial Phenolic Metabolites by HPLC-ESI-LTQ-Orbitrap-HRMS and Their Relationship with Dietary Polyphenols in Adolescents. Antioxidants (Basel) 2022; 11:antiox11061167. [PMID: 35740067 PMCID: PMC9220091 DOI: 10.3390/antiox11061167] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/01/2022] [Accepted: 06/08/2022] [Indexed: 02/04/2023] Open
Abstract
This study aimed to develop and validate a liquid chromatography/electrospray ionization-linear ion trap quadrupole-Orbitrap-high-resolution mass spectrometry (HPLC/ESI-LTQ-Orbitrap-HRMS) method to identify and quantify urinary microbial phenolic metabolites (MPM), as well as to explore the relationship between MPM and dietary (poly)phenols in Spanish adolescents. A total of 601 spot urine samples of adolescents aged 12.02 ± 0.41 years were analyzed. The quantitative method was validated for linearity, limit of detection, limit of quantification, recovery, intra- and inter-day accuracy and precision, as well as postpreparative stability according to the criteria established by the Association of Official Agricultural Chemists International. A total of 17 aglycones and 37 phase II MPM were identified and quantified in 601 spot urine samples. Phenolic acids were the most abundant urinary MPM, whereas stilbenes, hydroxytyrosol, and enterodiol were the least abundant. Urinary hydroxycoumarin acids (urolithins) were positively correlated with flavonoid and total (poly)phenol intake. An HPLC-ESI-LTQ-Orbitrap-HRMS method was developed and fully validated to quantify MPM. The new method was performed accurately and is suitable for MPM quantification in large epidemiological studies. Urinary lignans and urolithins are proposed as potential biomarkers of grain and nut intake in an adolescent population.
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6
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Zarrouk E, Lenski M, Bruno C, Thibert V, Contreras P, Privat K, Ameline A, Fabresse N. High-resolution mass spectrometry: Theoretical and technological aspects. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2022. [DOI: 10.1016/j.toxac.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Goecker ZC, Legg KM, Salemi MR, Herren AW, Phinney BS, McKiernan HE, Parker GJ. Alternative LC-MS/MS Platforms and Data Acquisition Strategies for Proteomic Genotyping of Human Hair Shafts. J Proteome Res 2021; 20:4655-4666. [PMID: 34491751 DOI: 10.1021/acs.jproteome.1c00209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Protein is a major component of all biological evidence. Proteomic genotyping is the use of genetically variant peptides (GVPs) that contain single-amino-acid polymorphisms to infer the genotype of matching nonsynonymous single-nucleotide polymorphisms for the individual from whom the protein sample originated. This can be used to statistically associate an individual to evidence found at a crime scene. The utility of the inferred genotype increases as the detection of GVPs increases, which is the direct result of technology transfer to mass spectrometry platforms typically available. Digests of single (2 cm) human hair shafts from three European and two African subjects were analyzed using data-dependent acquisition on a Q-Exactive Plus Hybrid Quadrupole-Orbitrap system, data-independent acquisition and a variant of parallel reaction monitoring (PRM) on an Orbitrap Fusion Lumos Tribrid system, and multiple reaction monitoring (MRM) on an Agilent 6495 triple quadrupole system. In our hands, average GVP detection from a selected panel of 24 GVPs increased from 6.5 ± 1.1 and 3.1 ± 0.8 using data-dependent and -independent acquisition to 9.5 ± 0.7 and 11.7 ± 1.7 using PRM and MRM (p < 0.05), respectively. PRM resulted in a 1.3-fold increase in detection sensitivity, and MRM resulted in a 1.6-fold increase in detection sensitivity. This increase in biomarker detection has a functional impact on the statistical association of a protein sample and an individual. Increased biomarker sensitivity, using Markov Chain Monte Carlo modeling, produced a median-estimated random match probability of over 1 in 10 trillion from a single hair using targeted proteomics. For PRM and MRM, detected GVPs were validated by the inclusion of stable isotope-labeled peptides in each sample, which served also as a detection trigger. This research accomplishes two aims: the demonstration of utility for alternative analytical platforms in proteomic genotyping and the establishment of validation methods for the evaluation of inferred genotypes.
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Affiliation(s)
- Zachary C Goecker
- Department of Environmental Toxicology, University of California, Davis, California 95616, United States
| | - Kevin M Legg
- The Center for Forensic Science Research and Education, Willow Grove, Pennsylvania 19090, United States
| | - Michelle R Salemi
- Proteomics Core Facility, University of California, Davis, California 95616, United States
| | - Anthony W Herren
- Proteomics Core Facility, University of California, Davis, California 95616, United States
| | - Brett S Phinney
- Proteomics Core Facility, University of California, Davis, California 95616, United States
| | - Heather E McKiernan
- The Center for Forensic Science Research and Education, Willow Grove, Pennsylvania 19090, United States
| | - Glendon J Parker
- Department of Environmental Toxicology, University of California, Davis, California 95616, United States
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Thakur A, Tan Z, Kameyama T, El-Khateeb E, Nagpal S, Malone S, Jamwal R, Nwabufo CK. Bioanalytical strategies in drug discovery and development. Drug Metab Rev 2021; 53:434-458. [PMID: 34310243 DOI: 10.1080/03602532.2021.1959606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A reliable, rapid, and effective bioanalytical method is essential for the determination of the pharmacokinetic, pharmacodynamic, and toxicokinetic parameters that inform the safety and efficacy profile of investigational drugs. The overall goal of bioanalytical method development is to elucidate the procedure and operating conditions under which a method can sufficiently extract, qualify, and/or quantify the analyte(s) of interest and/or their metabolites for the intended purpose. Given the difference in the physicochemical properties of small and large molecule drugs, different strategies need to be adopted for the development of an effective and efficient bioanalytical method. Herein, we provide an overview of different sample preparation strategies, analytical platforms, as well as procedures for achieving high throughput for bioanalysis of small and large molecule drugs.
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Affiliation(s)
- Aarzoo Thakur
- Innovations in Food and Chemical Safety, Agency for Science, Technology, and Research, Singapore, Singapore.,Skin Research Institute of Singapore, Agency for Science, Technology, and Research, Singapore, Singapore
| | - Zhiyuan Tan
- Department of Early Clinical Development, dMed-Clinipace, Shanghai, China
| | - Tsubasa Kameyama
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Eman El-Khateeb
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, UK.,Clinical Pharmacy Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Shakti Nagpal
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore, Singapore
| | | | - Rohitash Jamwal
- College of Pharmacy, University of Rhode Island, Kingston, RI, USA
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Cai J, Yan Z. Re-Examining the Impact of Minimal Scans in Liquid Chromatography-Mass Spectrometry Analysis. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2110-2122. [PMID: 34190546 DOI: 10.1021/jasms.1c00073] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Liquid chromatography-mass spectrometry (LC-MS) is one of the most widely used analytical tools. High analysis volumes and sample complexity often demand more informative LC-MS acquisition schemes to improve efficiency and throughput without compromising data quality, and such a demand has been always hindered by the prerequisite that a minimum of 13-20 MS scans (data points) across an analyte peak are required for accurate quantitation. The current study systematically re-evaluated and compared the impact of different scan numbers on quantitation analysis using both triple quadrupoles mass spectrometry (TQMS) and high-resolution mass spectrometry (HRMS). Contrary to the 13-20 minimal scan prerequisite, the data obtained from a group of eight commercial drugs in the absence and presence of biological matrices suggest that 6 scans per analyte peak are sufficient to achieve highly comparable quantitation results compared to that obtained using 10 and 20 scans, respectively. The fewer minimal scan prerequisite is presumably attributed to an improved LC system and advanced column technology, better MS detector, and more intelligent peak detection and integration algorithms leading to a more symmetric peak shape and smaller peak standard deviation. As a result, more informative acquisition schemes can be broadly set up for higher throughput and more data-rich LC-MS/MS analysis as demonstrated in a hepatocyte clearance assay in which fewer MS scans executed on HRMS led to broader metabolite coverage without compromising data quality in hepatic clearance assessment. The demonstrated acquisition scheme would substantially increase the throughput, robustness, and richness of the nonregulatory analysis, which can be broadly applied in diverse fields including pharmaceutical, environmental, forensic, toxicological, and biotechnological.
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Affiliation(s)
- Jingwei Cai
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California 94080, United States
| | - Zhengyin Yan
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California 94080, United States
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10
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Zhang Z, Chan PK, Richardson J, Shah B. An evaluation of instrument types for mass spectrometry-based multi-attribute analysis of biotherapeutics. MAbs 2021; 12:1783062. [PMID: 32643531 PMCID: PMC7531562 DOI: 10.1080/19420862.2020.1783062] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Multi-attribute methods (MAM), based on proteolytic digestion followed by liquid chromatography-mass spectrometry analysis of proteolytic peptides, have gained substantial attention in the biopharmaceutical industry for quantifying a variety of quality attributes for therapeutic proteins. Most MAM developed so far have been based on high-resolution mass spectrometers, due to their superb resolving power to distinguish analyte signals from interferences. Lower-resolution instruments, if demonstrated suitable, may further promote the adoption of the technology due to their low cost, small footprint, and ease of use. In this work, we compared the performance of a high-resolution instrument with a few low-resolution quadrupole-type instruments in quantifying a diverse set of quality attributes in a monoclonal antibody product. Different modes of operation for the quadrupole instruments, including scan mode, selected-ion monitoring and multiple-reaction monitoring, were evaluated. The high-resolution instrument has superb performance, with a quantitation limit of 0.002%. Single-quadrupole instruments in scan mode, on the other hand, provide a quantitation limit of about 1%, which may be fit-for-purpose for many routine MAM applications.
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Affiliation(s)
- Zhongqi Zhang
- Process Development, Amgen, Inc ., Thousand Oaks, CA, USA
| | - Pik K Chan
- Process Development, Amgen, Inc ., Thousand Oaks, CA, USA
| | | | - Bhavana Shah
- Process Development, Amgen, Inc ., Thousand Oaks, CA, USA
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González-Gaya B, Lopez-Herguedas N, Bilbao D, Mijangos L, Iker AM, Etxebarria N, Irazola M, Prieto A, Olivares M, Zuloaga O. Suspect and non-target screening: the last frontier in environmental analysis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1876-1904. [PMID: 33913946 DOI: 10.1039/d1ay00111f] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Suspect and non-target screening (SNTS) techniques are arising as new analytical strategies useful to disentangle the environmental occurrence of the thousands of exogenous chemicals present in our ecosystems. The unbiased discovery of the wide number of substances present over environmental analysis needs to find a consensus with powerful technical and computational requirements, as well as with the time-consuming unequivocal identification of discovered analytes. Within these boundaries, the potential applications of SNTS include the studies of environmental pollution in aquatic, atmospheric, solid and biological samples, the assessment of new compounds, transformation products and metabolites, contaminant prioritization, bioremediation or soil/water treatment evaluation, and retrospective data analysis, among many others. In this review, we evaluate the state of the art of SNTS techniques going over the normalized workflow from sampling and sample treatment to instrumental analysis, data processing and a brief review of the more recent applications of SNTS in environmental occurrence and exposure to xenobiotics. The main issues related to harmonization and knowledge gaps are critically evaluated and the challenges of their implementation are assessed in order to ensure a proper use of these promising techniques in the near future.
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Affiliation(s)
- B González-Gaya
- Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), 48940 Leioa, Basque Country, Spain.
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Demlová R, Turjap M, Peš O, Kostolanská K, Juřica J. Therapeutic Drug Monitoring of Sunitinib in Gastrointestinal Stromal Tumors and Metastatic Renal Cell Carcinoma in Adults-A Review. Ther Drug Monit 2021; 42:20-32. [PMID: 31259881 DOI: 10.1097/ftd.0000000000000663] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Sunitinib is an inhibitor of multiple receptor tyrosine kinases and is a standard-of-care treatment for advanced and metastatic renal cell carcinoma and a second-line treatment in locally advanced inoperable and metastatic gastrointestinal stromal tumors. A fixed dose of the drug, however, does not produce a uniform therapeutic outcome in all patients, and many face adverse effects and/or toxicity. One of the possible causes of the interindividual variability in the efficacy and toxicity response is the highly variable systemic exposure to sunitinib and its active metabolite. This review aims to summarize all available clinical evidence of the treatment of adult patients using sunitinib in approved indications, addressing the necessity to introduce proper and robust therapeutic drug monitoring (TDM) of sunitinib and its major metabolite, N-desethylsunitinib. METHODS The authors performed a systematic search of the available scientific literature using the PubMed online database. The search terms were "sunitinib" AND "therapeutic drug monitoring" OR "TDM" OR "plasma levels" OR "concentration" OR "exposure." The search yielded 520 journal articles. In total, 447 publications were excluded because they lacked sufficient relevance to the reviewed topic. The remaining 73 articles were, together with currently valid guidelines, thoroughly reviewed. RESULTS There is sufficient evidence confirming the concentration-efficacy and concentration-toxicity relationship in the indications of gastrointestinal stromal tumors and metastatic renal clear-cell carcinoma. For optimal therapeutic response, total (sunitinib + N-desethylsunitinib) trough levels of 50-100 ng/mL serve as a reasonable target therapeutic range. To avoid toxicity, the total trough levels should not exceed 100 ng/mL. CONCLUSIONS According to the current evidence presented in this review, a TDM-guided dose modification of sunitinib in selected groups of patients could provide a better treatment outcome while simultaneously preventing sunitinib toxicity.
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Affiliation(s)
- Regina Demlová
- Department of Pharmacology, Medical Faculty, Masaryk University, Brno
| | - Miroslav Turjap
- Department of Clinical Pharmacy, University Hospital Ostrava, Ostrava
| | - Ondřej Peš
- Department of Biochemistry, Medical Faculty, Masaryk University
| | | | - Jan Juřica
- Department of Pharmacology, Medical Faculty, Masaryk University, Masaryk Memorial Cancer Institute; and.,Department of Human Pharmacology and Toxicology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
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Strindberg S, Plum J, Bagger C, Janfelt C, Müllertz A. Visualizing the Journey of Fenofibrate through the Rat Gastrointestinal Tract by Matrix-Assisted Laser Desorption/Ionization-Mass Spectrometry Imaging. Mol Pharm 2021; 18:2189-2197. [PMID: 33891424 DOI: 10.1021/acs.molpharmaceut.0c01043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Mapping the spatial distribution of a drug throughout the gastrointestinal tract (GIT) after oral ingestion can provide novel insights into the interaction between the drug, the oral drug delivery system, and the GIT. Matrix-assisted laser desorption/ionization-mass spectrometry imaging (MALDI-MSI) is a molecular imaging technique that can analyze molecules in the cryosections of tissues, determining their localization with a spatial resolution of 10-100 μm. The overall aim of this study was to use MALDI-MSI to visualize the distribution and spatial location of a model prodrug (fenofibrate) through the rat GIT. Furthermore, the distribution and spatial colocalization of taurocholate and phospholipids in the rat GIT in relation to fenofibrate were investigated. Rats were given a fenofibrate suspension of 10 mg/mL by oral gavage. Blood samples were drawn, and the rats were euthanized at three different time points. The GIT was collected and frozen, and MALDI-MSI was applied on cross sections of the stomach and intestine. Fenofibrate was detected by MALDI-MSI throughout the GIT, which also revealed that fenofibrate was hydrolyzed to the active drug fenofibric acid already in the stomach. Furthermore, the presence of lyso-phosphatidylcholine (lyso-PC) and taurocholate was confirmed in the lumen of the small intestine. MALDI-MSI was shown to be a useful qualitative tool for localizing parent prodrugs and active drugs, with a possibility for gaining insight into not only the location for activation but also the role of endogenous molecules in the process.
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Affiliation(s)
- Sophie Strindberg
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen DK-2100, Denmark
| | - Jakob Plum
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen DK-2100, Denmark
| | - Charlotte Bagger
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen DK-2100, Denmark
| | - Christian Janfelt
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen DK-2100, Denmark
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen DK-2100, Denmark.,Bioneer: FARMA, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2100, Denmark
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14
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Lefeuvre S, Bois-Maublanc J, Mongeois E, Policarpo V, Formaux L, Francia T, Billaud EM, Got L. Quantitation using HRMS: A new tool for rapid, specific and sensitive determination of catecholamines and deconjugated methanephrines metanephrines in urine. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1166:122391. [PMID: 33246878 DOI: 10.1016/j.jchromb.2020.122391] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 12/27/2022]
Abstract
Urinary catecholamines and their methylated metabolites are biochemical indicators of pheochromocytoma, paraganglioma and neuroblastoma. A rapid and precise analytical method based on solid-phase extraction (SPE) and liquid chromatography separation coupled to high-resolution mass spectrometry (LC-HRMS) was developed and validated to measure urinary catecholamines (epinephrine (E), norepinephrine (NorE), dopamine (D)) and total methylated metabolites (normetanephrine (NorMN), metanephrine(MN) and 3-methoxytyramine (3-MT)) in a clinical setting. Results of 51 urine specimens measured using this LC-HRMS method were compared with a liquid chromatography assay with electrochemical detection (LC-EC). Urine samples (200 μL) were spiked with an internal standard solution followed by SPE purification. In the case of total methylated metabolites, urine was hydrolyzed before SPE purification. Separation was achieved on an Acclaim Mixed Mode WCX column, with an 8.5 min runtime. All compounds were detected in electrospray positive ionization mode with a parallel reaction monitoring acquisition and quantified with a linear regression (r2 > 0.998) between 2 and 200 µg/L (10.9-1090; 11.8-1182 nmol/L) for E and NorE respectively and between 10 and 1000 µg/L for others (65.2-6520; 50.7-5070; 54.5-5450 ; 59.8-5980 nmol/L for D, M, NorMN and 3-MT, respectively). Overall imprecision and bias did not exceed 15%. No significant matrix effect was observed. Correlation between the two assays was good except for epinephrine. Epinephrine concentrations measured by LC-EC method were slightly higher than values obtained with LC-HRMS method but without impact on clinical decision. This LC-HRMS assay provides a new tool for simultaneous quantitative catecholamine determination and was successfully applied in routine for the screening or follow up of pheochromocytoma, paraganglioma and neuroblastoma. LC-HRMS method offers significant advantages compared to LC-EC with good sensitivity, an unambiguous analyte determination and high sample throughput.
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Affiliation(s)
- S Lefeuvre
- Laboratory of Biochemistry, CHR Orléans, France.
| | | | - E Mongeois
- Diabetology - Endocrinology - Nutrition Department, CHR Orléans, France
| | - V Policarpo
- Laboratory of Biochemistry, CHR Orléans, France
| | - L Formaux
- Laboratory of Biochemistry, CHR Orléans, France
| | - T Francia
- Laboratory of Biochemistry, CHR Orléans, France
| | - E M Billaud
- Pharmacology Department, AP-HP, Hôpital Européen Georges Pompidou, Paris Descartes University, Paris, France
| | - L Got
- Laboratory of Biochemistry, CHR Orléans, France
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15
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Wang X, Qin W, Chen W, Liu H, Zhang D, Zhang X, Li P. Validation of a novel UPLC-HRMS method for human whole-blood cyclosporine and comparison with a CMIA immunoassay. Exp Ther Med 2021; 21:191. [PMID: 33488800 PMCID: PMC7812591 DOI: 10.3892/etm.2021.9623] [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: 07/15/2020] [Accepted: 11/13/2020] [Indexed: 11/06/2022] Open
Abstract
Therapeutic drug monitoring is an essential tool when managing the therapeutic use of immunosuppressant cyclosporine A (CsA) in cases with solid organ transplantation. In China, the concentration of CsA is primarily measured using immunoassays. However, existing literature recommends mass spectrometry as the current gold standard for the quantitation of CsA. In the present study, it was attempted to develop a novel application to determine CsA concentrations by using ultra-performance liquid chromatography coupled to high-resolution mass spectrometry (UPLC-HRMS). This technique was then compared with a commercially available chemiluminescent microparticle immunoassay (CMIA) and it was investigated how clinical factors may contribute to quantitation differences between the two methods. An UPLC-Orbitrap-MS method was developed to determine CsA concentrations and this method was validated using guidelines put forward by the Food and Drug Administration from the US. In total, 127 blood samples were acquired from patients undergoing kidney transplantation and analyzed by UPLC-HRMS and CMIA assays. The novel method provided sensitive, accurate and precise results. The mean CsA concentration measured by CMIA was significantly higher than that measured by UPLC-HRMS (85.70±48.99 vs. 67.06±34.56 ng/ml, P<0.0001). Passing Bablok analysis yielded a slope of 1.34 (95% CI: 1.22-1.47) and an intercept of -2.54 (95% CI: -10.29-5.52). A group of samples with a higher metabolic ratio (hydroxylated CsA/CsA>1) exhibited larger discrepancies, while a group of samples taken from patients with a longer post-transplantation time (>10 years) featured narrow 95% CIs from -15.32 to 65.69%, as determined by Bland-Altman analysis. In summary, a reliable, accurate and rapid UPLC-HRMS method for CsA analysis was successfully developed. The measurement of CsA by the CMIA assay in renal transplant patients should be further evaluated with a specific focus on positive bias.
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Affiliation(s)
- Xiaoxue Wang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Wei Qin
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Wenqian Chen
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Huifang Liu
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Dan Zhang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Xianglin Zhang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Pengmei Li
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, P.R. China
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16
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Ghallab DS, Mohyeldin MM, Shawky E, Metwally AM, Ibrahim RS. Chemical profiling of Egyptian propolis and determination of its xanthine oxidase inhibitory properties using UPLC–MS/MS and chemometrics. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110298] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Retmana IA, Beijnen JH, Sparidans RW. Chromatographic bioanalytical assays for targeted covalent kinase inhibitors and their metabolites. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1162:122466. [PMID: 33316750 DOI: 10.1016/j.jchromb.2020.122466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023]
Abstract
Deriving from targeted kinase inhibitors (TKIs), targeted covalent kinase inhibitors (TCKIs) are a new class of TKIs that are covalently bound to their target residue of kinase receptors. Currently, there are many new TCKIs under clinical development besides afatinib, ibrutinib, osimertinib, neratinib, acalabrutinib, dacomitinib, and zanubrutinib that are already approved by the FDA. Subsequently, there is an increasing demand for bioanalytical methods to qualitatively and quantitively investigate those compounds, leading to a number of papers reporting the development, validation, and use of bioanalytical methods for TCKIs. Most publications describe the technological set up of analytical methods that allow quantification of TCKIs in various biomatrices such as plasma, cerebrospinal fluid, urine, tissue, and liver microsomes. In addition, the identification of metabolites and biotransformation pathways of new TCKIs has gained more interest in recent years. We provide an overview of bioanalytical methods of this new class of TCKIs. The included issues are sample pretreatment, chromatographic separation, detection, and method validation. In the scope of bioanalysis of TCKIs, protein precipitation is mostly applied to treat the biological matrices sample. Liquid chromatographic in reversed-phase mode (RPLC) and mass detection with triple quadrupole (QqQ) are the most often utilized separation and quantitative detection modes, respectively. There may be a possibility of increased use of the high-resolution mass spectrometry (HRMS) for qualitative investigation purposes in the future. We also found that US FDA and EMA guidelines are the most common guidelines employed as validation framework for the bioanalytical methods of TCKIs.
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Affiliation(s)
- Irene A Retmana
- The Netherlands Cancer Institute, Division of Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands; Utrecht University, Faculty of Science, Department of Pharmaceutical Sciences, Division of Pharmacoepidemiology and Clinical Pharmacology, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Jos H Beijnen
- Utrecht University, Faculty of Science, Department of Pharmaceutical Sciences, Division of Pharmacoepidemiology and Clinical Pharmacology, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands; The Netherlands Cancer Institute, Department of Pharmacy & Pharmacology, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands
| | - Rolf W Sparidans
- Utrecht University, Faculty of Science, Department of Pharmaceutical Sciences, Division of Pharmacology, Universiteitsweg 99, 3584 CG, Utrecht, the Netherlands.
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Pereira DTV, Zabot GL, Reyes FGR, Iglesias AH, Martínez J. Integration of pressurized liquids and ultrasound in the extraction of bioactive compounds from passion fruit rinds: Impact on phenolic yield, extraction kinetics and technical-economic evaluation. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2020.102549] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Determination of Synthetic Cathinones in Urine and Oral Fluid by Liquid Chromatography High-Resolution Mass Spectrometry and Low-Resolution Mass Spectrometry: A Method Comparison. SEPARATIONS 2020. [DOI: 10.3390/separations7040053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Synthetic cathinones have become very popular recreational drugs. Therefore, determining them in biological samples is now a matter of concern. In recent years, different methods that have been developed can determine these drugs at low-concentration levels. In general, liquid chromatography mass spectrometry detection plays an important role in these methods and the trend is to use low-resolution and high-resolution mass spectrometry. In this article, for the first time, we compare these two analyzers using an Orbitrap and a triple quadrupole mass spectrometer in order to determine a group of synthetic cathinones in urine and oral fluid samples. For this comparison, we evaluated and compared different parameters: Method detection and quantification limits, linearity, apparent recoveries, matrix effect, repeatability (intra-day), reproducibility (inter-day), and accuracy. Similar results were obtained for the two analyzers for the apparent recoveries and matrix effect. However, triple quadrupole showed higher sensitivity compared to Orbitrap for both urine and oral fluid samples. The quantification limits in urine and the detection limits in saliva were two times lower for triple quadrupole. Finally, when blind samples were analyzed to study the accuracy, similar results were obtained for both analyzers.
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20
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Saito J, Tanzawa A, Kojo Y, Maruyama H, Isayama T, Shoji K, Ito Y, Yamatani A. A sensitive method for analyzing fluconazole in extremely small volumes of neonatal serum. J Pharm Health Care Sci 2020; 6:14. [PMID: 32626595 PMCID: PMC7329421 DOI: 10.1186/s40780-020-00170-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/27/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The need for a large volume of serum sample significantly reduces the feasibility of neonatal pharmacokinetic studies in daily practice, which must often rely on scavenged or opportunistic sampling. This problem is most apparent in preterm newborns, where ethical and practical considerations prohibit the collection of large sample volumes. Most of the fluconazole analysis assays published thus far required a minimum serum sample of 50 to 100 μL for a single assay. The purpose of the present study was to develop and validate a sensitive method requiring a smaller sample volume (10 μL) to satisfy clinically relevant research requirements. METHODS Following simple protein precipitation and centrifugation, the filtrated supernatant was injected into a liquid chromatography system and separated with a C18 reverse-phase column. Fluconazole and the internal standard (IS, fluconazole-d4) were detected and quantified using tandem mass spectrometry. The method was validated with reference to the Food and Drug Administration's Guidance for Industry. Accuracy and precision were evaluated at six quality control concentration levels (ranging from 0.01 to 100 μg/mL). RESULTS Investigated calibration curves were linear in the 0.01-100 μg/mL range. Intra- and inter-day accuracy (- 7.7 to 7.4%) and precision (0.3 to 6.0%) were below 15%. The calculated limit of detection and the lower limit of quantification (LLOQ) was 0.0019 μg/mL and 0.0031 μg/mL, respectively. Fluconazole in the prepared samples was stable for at least 4 months at - 20 °C and - 80 °C. This method was applied to analyze 234 serum samples from ten neonates who received fosfluconazole, a water-soluble phosphate prodrug of fluconazole which converts to fluconazole in the body, as part of a pharmacokinetic study using daily scavenged laboratory samples. The median (range) concentration up to 72 h after fosfluconazole administration was 2.9 (0.02 to 26.8 μg/mL) μg/mL, which was within the range of the calibration curve. CONCLUSION Fluconazole was able to be detected in an extremely small volume (10 μL) of serum from neonates receiving fosfluconazole. The method presented here can be used to quantify fluconazole concentrations for pharmacokinetic studies of the neonatal population by using scavenged samples.
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Affiliation(s)
- Jumpei Saito
- Department of Pharmacy, National Center for Child Health and Development, 157-8535, 2-10-1 Okura, Setagaya-ku, Tokyo, Japan
| | - Ayano Tanzawa
- Department of Pharmacy, National Center for Child Health and Development, 157-8535, 2-10-1 Okura, Setagaya-ku, Tokyo, Japan
| | - Yuka Kojo
- Department of Pharmacy, National Center for Child Health and Development, 157-8535, 2-10-1 Okura, Setagaya-ku, Tokyo, Japan
| | - Hidehiko Maruyama
- Division of Neonatology, Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Tetsuya Isayama
- Division of Neonatology, Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Kensuke Shoji
- Division of Infectious Diseases, Department of Medical Subspecialties, National Center for Child Health and Development, Tokyo, Japan
| | - Yushi Ito
- Division of Neonatology, Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Akimasa Yamatani
- Department of Pharmacy, National Center for Child Health and Development, 157-8535, 2-10-1 Okura, Setagaya-ku, Tokyo, Japan
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21
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Wu IL, Turnipseed SB, Storey JM, Andersen WC, Madson MR. Comparison of data acquisition modes with Orbitrap high-resolution mass spectrometry for targeted and non-targeted residue screening in aquacultured eel. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8642. [PMID: 31702084 PMCID: PMC7722469 DOI: 10.1002/rcm.8642] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 05/05/2023]
Abstract
RATIONALE A current trend in monitoring chemical contaminants in animal products is to use high-resolution mass spectrometry (HRMS). In this study, several HRMS data acquistion modes using Orbitrap MS for simultaneous full-scan MS in combination with MS2 analysis were evaulated for their effectiveness in detecting and identifying both targeted and non-targeted veterinary drug residues in aquacultured eel samples. METHODS Sample preparation consisted of an acidic acetonitrile extraction with solid-phase extraction cleanup for analysis using LC/HRMS. Different data acquisition methods, including full-scan MS with non-targeted all ion fragmentation (AIF), multiplexed or variable data-independent analysis (mDIA or vDIA), targeted data-dependent MS2 (DDMS2), and parallel reaction monitoring (PRM) acquisition, were explored. The methods were evaluated with fortified eel tissue and imported eel samples to determine how many analytes could be detected and identified. RESULTS For non-targeted data acquisition, the number of analytes detected using DIA methods matched the results obtained by AIF, but the resulting product ion scans were more diagnostic because characteristic ions were predominant in the DIA MS2 spectra. In targeted analysis for a limited list of 68 compounds, full-scan MS followed by PRM was advantageous compared with DDMS2 because high-quality MS2 spectra were generated for almost all the analytes at target testing levels. CONCLUSIONS For residue screening, AIF has fast MS1 scan speed with adequate detection of product ions but may lead to false positive findings. DIA methods are better suited to monitor for both targeted and non-targeted compounds because they generate more characteristic MS2 spectra for retrospective library searching. For follow-up targeted analysis, PRM is prefered over DDMS2 when searching for a limited set of compounds.
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Affiliation(s)
- I-Lin Wu
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
| | - Sherri B Turnipseed
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
| | - Joseph M Storey
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
| | - Wendy C Andersen
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
| | - Mark R Madson
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
- Denver Laboratory, U.S. Food and Drug Administration, Denver Federal Center, Denver, Colorado, USA
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22
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Rochani A, Lam E, Tanjuakio J, Hirose H, Kraft WK, Kaushal G. Simultaneous quantitative LC-MS method of ketamine, midazolam and their metabolites (dehydronorketamine, norketamine and 1hydroxymidazolam) for its application in patients on extracorporeal membrane oxygenation (ECMO) therapy. J Pharm Biomed Anal 2020; 178:112947. [PMID: 31708269 DOI: 10.1016/j.jpba.2019.112947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/14/2019] [Accepted: 10/19/2019] [Indexed: 10/25/2022]
Abstract
Ketamine (Ket) and midazolam (MDZ) are commonly administered drugs in the intensive care setting for analgesia and sedation. Ket and MDZ are metabolized to dehydro-norketamine (DHNK), nor-ketamine (NK) and 1-hydroxy midazolam (1HMDZ). Limited studies evaluating their pharmacokinetics exists in patients on extracorporeal membrane oxygenation (ECMO) therapy. Therefore, we developed a quantitative, high-performance liquid chromatography-mass spectrometry (with single ion monitoring) method to simultaneously detect Ket, MDZ and their (DHNK, NK and 1HMDZ) metabolites in human plasma. Considerable sensitivity was obtained for the analytes using a C18 HILIC column operated by a high-performance liquid chromatography system coupled with a Thermo Exactive Orbitrap mass spectrometer. Calibration curves were developed for analyte molecules (n = 5) in the presence of carbamazepine (CBZ) as an internal standard. The lower limits of quantitation (LLOQ) for Ket and MDZ were 20 and 10 ng/mL, respectively with the LLOQ for DHNK, NK and 1HMDZ at 470, 320 and 150 ng/ml. Moreover, the percent coefficient of variance and precision for inter- and intra-day runs were within the standards set forth by the ICH and FDA guidelines. This method is sensitive and has been successfully applied to an ongoing pharmacokinetic study in patients on ECMO therapy.
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Affiliation(s)
- Ankit Rochani
- Department of Pharmaceutical Science, Thomas Jefferson University, Philadelphia, PA, USA
| | - Edwin Lam
- Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA, USA
| | - Julian Tanjuakio
- Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA, USA
| | - Hitoshi Hirose
- Department of Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Walter K Kraft
- Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA, USA; Department of Surgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Gagan Kaushal
- Department of Pharmaceutical Science, Thomas Jefferson University, Philadelphia, PA, USA.
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Pandey R, Gruslova A, Chiou J, Brenner AJ, Tiziani S. Stable Isotope Dilution LC-HRMS Assay To Determine Free SN-38, Total SN-38, and SN-38G in a Tumor Xenograft Model after Intravenous Administration of Antibody-Drug Conjugate (Sacituzumab Govitecan). Anal Chem 2020; 92:1260-1267. [PMID: 31765123 DOI: 10.1021/acs.analchem.9b04419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Antibody-drug conjugates (ADCs) have gained significant interest over the past few years due to their targeted delivery, higher efficacy, decreased toxicity and improved therapeutic index over conventional anticancer therapies. Sacituzumab govitecan (SG) is an ADC composed of a Trop-2-targeted antibody conjugated to the cytotoxic payload SN-38. SG is currently being evaluated in clinical trials of several solid cancers. In this nonclinical study, we have developed a highly sensitive and selective approach to measure free and total SN-38 and its glucuronidation metabolite (SN-38G) using stable isotope dilution (SID) ultrahigh-performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS). An efficient and fast hydrolysis procedure (2 h at 100 °C) was established to release SN-38, conjugated to the antibody by carbonate linkage. The assay involves the extraction of free SN-38, SN-38G by protein precipitation, and subsequent acid hydrolysis of the protein layer to release antibody-bound SN-38. The developed UHPLC-HRMS method resulted in good linearity (r2 ≥ 0.997), accuracy (RE ≤ ± 9.1%), precision (CVs ≤ 7.7%), and extraction recoveries (85.6-109.3%). The validated method was applied in the plasma and tumor of mice bearing human brain (U251) and breast (MDA-MB-468) tumor xenografts treated with a single dose (0.5 mg) of SG for 6 h. Results revealed the presence of trace level of SN-38G and free SN-38 in plasma, which suggests an improved therapeutic index of SG. The established method makes a significant contribution to the assessment of SG in different cancers.
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Wang X, Shen S, Rasam SS, Qu J. MS1 ion current-based quantitative proteomics: A promising solution for reliable analysis of large biological cohorts. MASS SPECTROMETRY REVIEWS 2019; 38:461-482. [PMID: 30920002 PMCID: PMC6849792 DOI: 10.1002/mas.21595] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 02/28/2019] [Indexed: 05/04/2023]
Abstract
The rapidly-advancing field of pharmaceutical and clinical research calls for systematic, molecular-level characterization of complex biological systems. To this end, quantitative proteomics represents a powerful tool but an optimal solution for reliable large-cohort proteomics analysis, as frequently involved in pharmaceutical/clinical investigations, is urgently needed. Large-cohort analysis remains challenging owing to the deteriorating quantitative quality and snowballing missing data and false-positive discovery of altered proteins when sample size increases. MS1 ion current-based methods, which have become an important class of label-free quantification techniques during the past decade, show considerable potential to achieve reproducible protein measurements in large cohorts with high quantitative accuracy/precision. Nonetheless, in order to fully unleash this potential, several critical prerequisites should be met. Here we provide an overview of the rationale of MS1-based strategies and then important considerations for experimental and data processing techniques, with the emphasis on (i) efficient and reproducible sample preparation and LC separation; (ii) sensitive, selective and high-resolution MS detection; iii)accurate chromatographic alignment; (iv) sensitive and selective generation of quantitative features; and (v) optimal post-feature-generation data quality control. Prominent technical developments in these aspects are discussed. Finally, we reviewed applications of MS1-based strategy in disease mechanism studies, biomarker discovery, and pharmaceutical investigations.
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Affiliation(s)
- Xue Wang
- Department of Cell Stress BiologyRoswell Park Cancer InstituteBuffaloNew York
| | - Shichen Shen
- Department of Pharmaceutical SciencesUniversity at BuffaloState University of New YorkNew YorkNew York
| | - Sailee Suryakant Rasam
- Department of Biochemistry, University at BuffaloState University of New YorkNew YorkNew York
| | - Jun Qu
- Department of Cell Stress BiologyRoswell Park Cancer InstituteBuffaloNew York
- Department of Pharmaceutical SciencesUniversity at BuffaloState University of New YorkNew YorkNew York
- Department of Biochemistry, University at BuffaloState University of New YorkNew YorkNew York
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Xue J, Lai Y, Liu CW, Ru H. Towards Mass Spectrometry-Based Chemical Exposome: Current Approaches, Challenges, and Future Directions. TOXICS 2019; 7:toxics7030041. [PMID: 31426576 PMCID: PMC6789759 DOI: 10.3390/toxics7030041] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 12/13/2022]
Abstract
The proposal of the “exposome” concept represents a shift of the research paradigm in studying exposure-disease relationships from an isolated and partial way to a systematic and agnostic approach. Nevertheless, exposome implementation is facing a variety of challenges including measurement techniques and data analysis. Here we focus on the chemical exposome, which refers to the mixtures of chemical pollutants people are exposed to from embryo onwards. We review the current chemical exposome measurement approaches with a focus on those based on the mass spectrometry. We further explore the strategies in implementing the concept of chemical exposome and discuss the available chemical exposome studies. Early progresses in the chemical exposome research are outlined, and major challenges are highlighted. In conclusion, efforts towards chemical exposome have only uncovered the tip of the iceberg, and further advancement in measurement techniques, computational tools, high-throughput data analysis, and standardization may allow more exciting discoveries concerning the role of exposome in human health and disease.
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Affiliation(s)
- Jingchuan Xue
- Center for Environmental Health and Susceptibility, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yunjia Lai
- Center for Environmental Health and Susceptibility, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Chih-Wei Liu
- Center for Environmental Health and Susceptibility, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Hongyu Ru
- Department of Population Health and Pathobiology, North Carolina State University, Raleigh, NC 27607, USA.
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Laszlo CF, Paz Montoya J, Shamseddin M, De Martino F, Beguin A, Nellen R, Bruce SJ, Moniatte M, Henry H, Brisken C. A high resolution LC-MS targeted method for the concomitant analysis of 11 contraceptive progestins and 4 steroids. J Pharm Biomed Anal 2019; 175:112756. [PMID: 31387028 DOI: 10.1016/j.jpba.2019.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 07/01/2019] [Accepted: 07/02/2019] [Indexed: 12/27/2022]
Abstract
In the context of hormonal contraception and hormone replacement therapy (HRT), many women are exposed to exogenous hormones. Current use of hormonal contraception with combined ethinyl estradiol and different progestins bestows a breast cancer relative risk (RR) of 1.2- while combined HRT has a RR of 2. Although these exposures present an important public health issue, little is known about the effects of individual progestins on the breast and other tissues. Increasing availability of large scale biobanks, high throughput analyses and data management tools enable ever expanding, sophisticated population studies. In order to address the impact of distinct progestins on various health indicators, it is desirable to accurately quantify progestins in clinical samples. Here we have developed and validated a high resolution liquid chromatography mass spectrometry (LC-MS) targeted method for the simultaneous quantification of 11 synthetic progestins widely used in oral contraceptives, gestodene, levonorgestrel, etonogestrel, chlormadinone acetate, cyproterone acetate, drospirenone, desacetyl norgestimate, medroxyprogesterone acetate, norethindrone, dienogest, nomegestrol acetate, and 4 endogenous steroid hormones, progesterone, testosterone, androstenedione, and cortisol in blood samples. This highly specific quantitative analysis with high resolution Orbitrap technology detects and quantifies 15 compounds using their internal standard counterparts in a single 12 min LC-MS run. Sensitivity is attained by the use of the instrument in targeted selected ion monitoring mode. Lower limit of quantitation ranges from 2.4 pg/ml for drospirenone to 78.1 pg/ml for chlormadinone acetate. The method provides comprehensive progestin panel measurements with as little as 50 μl of murine or human plasma.
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Affiliation(s)
- Csaba Ferenc Laszlo
- Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole polytechnique fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland.
| | - Jonathan Paz Montoya
- Proteomics Core Facility, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
| | - Marie Shamseddin
- Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole polytechnique fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland.
| | - Fabio De Martino
- Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole polytechnique fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland.
| | - Alexandre Beguin
- Clinical Chemistry Laboratory, Centre Hospitalier Universitaire Vaudois (CHUV), CH-1011, Lausanne, Switzerland.
| | - Rene Nellen
- Clinical Chemistry Laboratory, Centre Hospitalier Universitaire Vaudois (CHUV), CH-1011, Lausanne, Switzerland.
| | - Stephen James Bruce
- Clinical Chemistry Laboratory, Centre Hospitalier Universitaire Vaudois (CHUV), CH-1011, Lausanne, Switzerland.
| | - Marc Moniatte
- Proteomics Core Facility, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
| | - Hugues Henry
- Département formation et recherche, Centre Hospitalier Universitaire Vaudois (CHUV), CH-1011, Lausanne, Switzerland.
| | - Cathrin Brisken
- Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole polytechnique fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland.
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The quantification of chlorinated paraffins in environmental samples by ultra-high-performance liquid chromatography coupled with Orbitrap Fusion Tribrid mass spectrometry. J Chromatogr A 2019; 1593:102-109. [DOI: 10.1016/j.chroma.2019.01.077] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/16/2019] [Accepted: 01/30/2019] [Indexed: 11/16/2022]
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Cavaliere C, Antonelli M, Capriotti AL, La Barbera G, Montone CM, Piovesana S, Laganà A. A Triple Quadrupole and a Hybrid Quadrupole Orbitrap Mass Spectrometer in Comparison for Polyphenol Quantitation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4885-4896. [PMID: 30977362 DOI: 10.1021/acs.jafc.8b07163] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Liquid chromatography coupled to low-resolution mass spectrometry (LRMS) has historically been a popular approach for compound quantitation. Recently, high-resolution mass spectrometry (HRMS) technical developments led to the introduction of new approaches for quantitative analysis. Whereas the performances of HRMS have been largely assessed for qualitative purposes, there are still questions about its suitability for quantitative analysis. Several papers on LRMS and HRMS comparison have been published; however, none of them was applied to polyphenol quantitation. In this work, a comparison between HRMS, operated in data-dependent acquisition mode, and LRMS, operated in selected-reaction-monitoring mode, was performed for polyphenol quantitation in wine. The two techniques were evaluated in terms of sensitivity, linearity range, matrix effect, and precision, showing the better performances of HRMS. The suitability of HRMS for quantitation purposes as well as qualitative screening makes HRMS the new technique of choice for both targeted and untargeted analysis.
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Affiliation(s)
- Chiara Cavaliere
- Department of Chemistry , University of Rome "La Sapienza" , Piazzale Aldo Moro 5 , Rome 00185 , Italy
| | - Michela Antonelli
- Department of Chemistry , University of Rome "La Sapienza" , Piazzale Aldo Moro 5 , Rome 00185 , Italy
| | - Anna Laura Capriotti
- Department of Chemistry , University of Rome "La Sapienza" , Piazzale Aldo Moro 5 , Rome 00185 , Italy
| | - Giorgia La Barbera
- Department of Chemistry , University of Rome "La Sapienza" , Piazzale Aldo Moro 5 , Rome 00185 , Italy
| | - Carmela Maria Montone
- Department of Chemistry , University of Rome "La Sapienza" , Piazzale Aldo Moro 5 , Rome 00185 , Italy
| | - Susy Piovesana
- Department of Chemistry , University of Rome "La Sapienza" , Piazzale Aldo Moro 5 , Rome 00185 , Italy
| | - Aldo Laganà
- Department of Chemistry , University of Rome "La Sapienza" , Piazzale Aldo Moro 5 , Rome 00185 , Italy
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Targeted and non-targeted forensic profiling of black powder substitutes and gunshot residue using gradient ion chromatography - high resolution mass spectrometry (IC-HRMS). Anal Chim Acta 2019; 1072:1-14. [PMID: 31146860 DOI: 10.1016/j.aca.2019.04.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/18/2019] [Accepted: 04/19/2019] [Indexed: 11/22/2022]
Abstract
A novel and simplified gradient IC-HRMS approach is presented in this work for forensic profiling of ionic energetic material residues, including low-order explosives and gunshot residue (GSR). This new method incorporated ethanolic eluents to facilitate direct coupling of IC and HRMS without auxiliary post-column infusion pumps that are traditionally used to assist with gas phase transfer. Ethanolic eluents also enabled better integration with an in-service protocol for direct analysis of high-order organic explosives by IC-HRMS, without requiring solvent exchange before injection. Excellent method performance was achieved, enabling both full scan qualitative and quantitative analysis, as required. In particular, linearity for 19 targeted compounds yielded R2 > 0.99 across several orders of magnitude, with trace analysis possible at the low-mid pg level. Reproducibility and mass accuracies were also excellent, with peak area %RSDs <10%, tR %RSDs <0.4% and δm/z < 3 ppm. The method was applied to targeted analysis of latent fingermarks and swabbed hand sweat samples to determine contact with a black-powder substitute containing nitrate, benzoate and perchlorate. When combined with principal component analysis (PCA), the effect of time since handling on recorded signals could be interpreted further in order to support forensic investigations. In a second, non-targeted application, PCA using full scan IC-HRMS data enabled classification of GSR from three different types of ammunition. An additional 20 markers of GSR were tentatively identified in silico, in addition to the 15 anions detected during targeted analysis. This new approach therefore streamlines and adds consistency and flexibility to forensic analysis of ionic energetic material. Furthermore, it also has implications for targeted, non-targeted and suspect screening applications in other fields by expanding the separation space to low molecular weight inorganic and organic anions.
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Källsten M, Pijnappel M, Hartmann R, Lehmann F, Kovac L, Lind SB, Bergquist J. Application of triple quadrupole mass spectrometry for the characterization of antibody-drug conjugates. Anal Bioanal Chem 2019; 411:2569-2576. [PMID: 30848315 PMCID: PMC6470114 DOI: 10.1007/s00216-019-01699-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/29/2019] [Accepted: 02/18/2019] [Indexed: 12/23/2022]
Abstract
Antibody–drug conjugates (ADCs) are an inherently heterogeneous class of biotherapeutics, the development of which requires extensive characterization throughout. During the earliest phases of preclinical development, when synthetic routes towards the desired conjugate are being assessed, the main interest lies in the determination of the average drug-to-antibody ratio (DAR) of a given batch as well as information about different conjugation species. There has been a trend in mass spectrometry (MS)–based characterization of ADCs towards the use of high-resolving mass spectrometry for many of these analyses. Considering the high cost for such an instrument, the evaluation of cheaper and more accessible alternatives is highly motivated. We have therefore tested the applicability of a quadrupole mass analyzer for the aforementioned characterizations. Eight ADCs consisting of trastuzumab and varying stoichiometries of Mc-Val-Cit-PABC-monomethyl auristatin E conjugated to native cysteines were synthesized and served as test analytes. The average DAR value and molecular weights (Mw) of all detected chains from the quadrupole mass analyzer showed surprisingly high agreement with results obtained from a time-of-flight (TOF) mass analyzer and hydrophobic interaction chromatography (HIC)–derived values for all investigated ADC batches. Acquired Mw were within 80 ppm of TOF-derived values, and DAR was on average within 0.32 DAR units of HIC-derived values. Quadrupole mass spectrometers therefore represent a viable alternative for the characterization of ADC in early-stage development. Graphical abstract ![]()
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Affiliation(s)
- Malin Källsten
- Department of Chemistry-BMC, Analytical Chemistry, Uppsala University, Box 599, 751 24, Uppsala, Sweden. .,Recipharm OT Chemistry AB, Virdings allé 32b, 754 50, Uppsala, Sweden.
| | | | - Rafael Hartmann
- Department of Medicinal Chemistry, Organic Pharmaceutical Chemistry, Uppsala Biomedical Center, Uppsala University, Box 574, 751 23, Uppsala, Sweden
| | - Fredrik Lehmann
- Oncopeptides AB, Luntmakargatan 46, SE-111 37, Stockholm, Sweden
| | - Lucia Kovac
- Recipharm OT Chemistry AB, Virdings allé 32b, 754 50, Uppsala, Sweden
| | - Sara Bergström Lind
- Department of Chemistry-BMC, Analytical Chemistry, Uppsala University, Box 599, 751 24, Uppsala, Sweden
| | - Jonas Bergquist
- Department of Chemistry-BMC, Analytical Chemistry, Uppsala University, Box 599, 751 24, Uppsala, Sweden.
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Schuster C, Paal M, Lindner J, Zoller M, Liebchen U, Scharf C, Vogeser M. Isotope dilution LC-orbitrap-HRMS with automated sample preparation for the simultaneous quantification of 11 antimycotics in human serum. J Pharm Biomed Anal 2019; 166:398-405. [PMID: 30711809 DOI: 10.1016/j.jpba.2019.01.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 01/24/2019] [Indexed: 01/12/2023]
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32
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Svilar L, Martin JC, Defoort C, Paut C, Tourniaire F, Brochot A. Quantification of trans-resveratrol and its metabolites in human plasma using ultra-high performance liquid chromatography tandem quadrupole-orbitrap mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1104:119-129. [PMID: 30453129 DOI: 10.1016/j.jchromb.2018.11.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 10/25/2018] [Accepted: 11/11/2018] [Indexed: 12/25/2022]
Abstract
Trans-resveratrol is a stilbene polyphenol with a large spectrum of biological activities. This is why it is widely studied in terms of activities, bioavailability and quantitation in different foods, beverages and biological matrices. Different analytical methods are employed for its quantitation. In this study a quadrupole-orbitrap tandem mass spectrometer coupled to a reverse phase ultra-high performance liquid chromatography is applied to a quantitation of trans-resveratrol and its metabolites trans-resveratrol-3-O-β-d-glucuronide, trans-resveratrol-4'-O-β-d-glucuronide, trans-resveratrol-3-O-sulfate, a,b-dihydroresveratrol, a,b-dihydroresveratrol-glucuronide, a,b-dihydroresveratrol-glucuronide-sulfate, a,b-dihydroresveratrol-sulfate, trans-resveratrol-3,5-O-β-d-diglucuronide, trans-resveratrol-3,4'-O-d-β-diglucuronide, trans-resveratrol-3-O-β-d-glucuronide-sulfate and trans-resveratrol-4'-O-β-d-glucuronide-sulfate in human plasma. MS/MS experiments coupled to a high resolving power and accurate mass measurements as well as the use of labeled internal standards enabled the achievement of linear calibration curves across the four orders of magnitude concentration ranges. The method was validated in terms of specificity and selectivity, accuracy and precision, sensitivity and matrix effect and can be now applied to pharmacokinetic studies or routine analysis. In addition, the application of quadrupole-orbitrap mass spectrometer to the quantitation of trans-resveratrol and its metabolites provides acquisition of full collision induced dissociation spectra of analyzed compounds giving place to the structural characterization and sensitivity and linear concentration ranges respecting the accuracy and precision, specificity and selectivity requirements.
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Affiliation(s)
- Ljubica Svilar
- CRIBIOM, Criblage Biologique Marseille, Faculté de Medecine de la Timone, Marseille, France; C2VN, Aix Marseille Univ, INSERM, INRA, Marseille, France.
| | - Jean-Charles Martin
- CRIBIOM, Criblage Biologique Marseille, Faculté de Medecine de la Timone, Marseille, France; C2VN, Aix Marseille Univ, INSERM, INRA, Marseille, France
| | - Catherine Defoort
- CRIBIOM, Criblage Biologique Marseille, Faculté de Medecine de la Timone, Marseille, France; C2VN, Aix Marseille Univ, INSERM, INRA, Marseille, France
| | - Charlotte Paut
- CRIBIOM, Criblage Biologique Marseille, Faculté de Medecine de la Timone, Marseille, France; C2VN, Aix Marseille Univ, INSERM, INRA, Marseille, France
| | - Franck Tourniaire
- CRIBIOM, Criblage Biologique Marseille, Faculté de Medecine de la Timone, Marseille, France; C2VN, Aix Marseille Univ, INSERM, INRA, Marseille, France
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Yang K, Xu M, Zhong F, Zhu J. Rapid differentiation of Lactobacillus species via metabolic profiling. J Microbiol Methods 2018; 154:147-155. [PMID: 30359661 DOI: 10.1016/j.mimet.2018.10.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 10/20/2018] [Accepted: 10/21/2018] [Indexed: 02/06/2023]
Abstract
Lactobacillus, the major genus of lactic acid bacteria group, plays functional roles in the human body, for example, convert sugars to lactic acid. They are the significant microbiota which can be found at a number of human body sites, such as the digestive system, urinary system, and genital system. A number of Lactobacillus species are often used as probiotics and can benefit host health when administered in adequate amounts. Due to their diverse functional characteristics, it is essential to have identification and high-resolution typing techniques to support the need in health and nutritional research of Lactobacillus species. In this study, we took advantages of both targeted and untargeted metabolomic technologies by using a triple quadrupole mass spectrometer (MS) in combination with a linear ion trap-Orbitrap hybrid MS, to investigate their capability and performance in deciphering the subtle metabolic difference in four closely related Lactobacillus species/strains. First, we evaluated the selected reaction monitoring (SRM) and high-resolution MS data for metabolite quantitation. Then the acquired data quality was further evaluated via the number of metabolites detected, the coefficient variation (CV) distribution, signal intensity distribution and so on. The established platforms were eventually applied to differentiate four Lactobacillus species in identical growth conditions. The proposed workflow demonstrated the capability of targeted and untargeted metabolomics in differentiating closely related bacterial strains/species.
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Affiliation(s)
- Kundi Yang
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA
| | - Mengyang Xu
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA
| | - Fanyi Zhong
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA
| | - Jiangjiang Zhu
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA.
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34
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Mass spectrometric recommendations for Quan/Qual analysis using liquid-chromatography coupled to quadrupole time-of-flight mass spectrometry. Anal Chim Acta 2018; 1020:62-75. [DOI: 10.1016/j.aca.2018.02.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/16/2018] [Accepted: 02/21/2018] [Indexed: 11/21/2022]
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35
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Improving selectivity and sensitivity of protein quantitation by LC–HR–MS/MS: determination of somatropin in rat plasma. Bioanalysis 2018; 10:1009-1021. [DOI: 10.4155/bio-2018-0032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Aim: Protein quantitation by digestion of a biological sample followed by LC–MS analysis of a signature peptide can be a challenge because of the high complexity of the digested matrix. Results/methodology: The use of LC with high-resolution (quadrupole-TOF) MS detection allowed quantitation of the 22-kDa biopharmaceutical somatropin in 60 μl of rat plasma down to 25 ng/ml with minimal further sample treatment. Reducing the mass extraction window to 0.01 Da considerably decreased the interference of tryptic peptides, enhanced sensitivity and improved accuracy and precision. Analysis with LC–MS/MS resulted in a less favorable limit of quantitation of 100 ng/ml. Conclusion: HRMS is an interesting option for the quantitation of proteins after digestion and has the potential to improve sensitivity with minimal method development.
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36
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Fully-automated systems and the need for global approaches should exhort clinical labs to reinvent routine MS analysis? Bioanalysis 2018; 10:1129-1141. [DOI: 10.4155/bio-2018-0074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Today, many LC–high-resolution MS instruments have become affordable, easy-to-use, sensitive and quantitative. Meanwhile, there is an increased need for more comprehensive approaches. However, omics analyses are still restricted to specialists whereas, in hospitals, routine analyses are targeted and quantitative and represent the main and heavy tasks. But the availability of fully automated LC–MS instruments that can handle independently from sample extraction to result reporting, as well as the increasing biomedical interest for global approaches, clinical analytical workflow should be reorganized. Bioanalysts are now in the position to develop/implement clinical metabolomics or proteomics as routine analyses. In this article, this coming evolution and the reasons to implement global/omics determinations as routine analysis, is described.
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Rochat B, Mohamed R, Sottas PE. LC-HRMS Metabolomics for Untargeted Diagnostic Screening in Clinical Laboratories: A Feasibility Study. Metabolites 2018; 8:metabo8020039. [PMID: 29914076 PMCID: PMC6027396 DOI: 10.3390/metabo8020039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/11/2018] [Accepted: 06/13/2018] [Indexed: 11/25/2022] Open
Abstract
Today’s high-resolution mass spectrometers (HRMS) allow bioanalysts to perform untargeted/global determinations that can reveal unexpected compounds or concentrations in a patient’s sample. This could be performed for preliminary diagnosis attempts when usual diagnostic processes and targeted determinations fail. We have evaluated an untargeted diagnostic screening (UDS) procedure. UDS is a metabolome analysis that compares one sample (e.g., a patient) with control samples (a healthy population). Using liquid chromatography (LC)-HRMS full-scan analysis of human serum extracts and unsupervised data treatment, we have compared individual samples that were spiked with one xenobiotic or a higher level of one endogenous compound with control samples. After the use of different filters that drastically reduced the number of metabolites detected, the spiked compound was eventually revealed in each test sample and ranked. The proposed UDS procedure appears feasible and reliable to reveal unexpected xenobiotics (toxicology) or higher concentrations of endogenous metabolites. HRMS-based untargeted approaches could be useful as preliminary diagnostic screening when canonical processes do not reveal disease etiology nor establish a clear diagnosis and could reduce misdiagnosis. On the other hand, the risk of overdiagnosis of this approach should be reduced with mandatory biomedical interpretation of the patient’s UDS results and with confirmatory targeted and quantitative determinations.
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Affiliation(s)
- Bertrand Rochat
- Protein Analysis Facility, Center for Integrative Genomics (CIG), University of Lausanne, CH-1015 Lausanne, Switzerland.
| | - Rayane Mohamed
- Département Formation Recherche, Centre Hospitalier Universitaire Vaudois (CHUV), CH-1011 Lausanne, Switzerland.
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38
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The black market for anorectic agents: A case study of amfepramone. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2018. [DOI: 10.1016/j.toxac.2018.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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39
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Gas-phase structural characterization of neuropeptides Y Y1 receptor antagonists using mass spectrometry: Orbitrap vs triple quadrupole. J Pharm Biomed Anal 2018; 151:227-234. [PMID: 29367160 DOI: 10.1016/j.jpba.2018.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/28/2017] [Accepted: 01/08/2018] [Indexed: 01/05/2023]
Abstract
Collision induced dissociation of triple quadrupole mass spectrometer (CID-QqQ) and high-energy collision dissociation (HCD) of Orbitrap were compared for four neuropeptides Y Y1 (NPY Y1) receptor antagonists and showed similar qualitative fragmentation and structural information. Orbitrap high resolution and high mass accuracy HCD fragmentation spectra allowed unambiguous identification of product ions in the range 0.04-4.25 ppm. Orbitrap mass spectrometry showed abundant analyte-specific product ions also observed on CID-QqQ. These results show the suitability of these product ions for use in quantitative analysis by MRM mode. In addition, it was found that all compounds could be determined at levels >1 μg L-1 using the QqQ instrument and that the detection limits for this analyzer ranged from 0.02 to 0.6 μg L-1. Overall, the results obtained from experiments acquired in QqQ show a good agreement with those acquired from the Orbitrap instrument allowing the use of this relatively inexpensive technique (QqQ) for accurate quantification of these compounds in clinical and academic applications.
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40
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Pandey R, Riley CL, Mills EM, Tiziani S. Highly sensitive and selective determination of redox states of coenzymes Q 9 and Q 10 in mice tissues: Application of orbitrap mass spectrometry. Anal Chim Acta 2018; 1011:68-76. [PMID: 29475487 DOI: 10.1016/j.aca.2018.01.066] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 01/17/2018] [Accepted: 01/21/2018] [Indexed: 12/31/2022]
Abstract
Coenzyme Q (CoQ) is a redox active molecule that plays a fundamental role in mitochondrial energy generation and functions as a potent endogenous antioxidant. Redox ratio of CoQ has been suggested as a good marker of mitochondrial dysfunction and oxidative stress. Nevertheless, simultaneous measurement of redox states of CoQ is challenging owing to its hydrophobicity and instability of the reduced form. In order to improve the analytical methodology, paying special attention to this instability, we developed a highly sensitive and selective high-resolution/accurate-mass (HR/AM) UHPLC-MS/MS method for the rapid determination of redox states of CoQ9 and CoQ10 by ultra-performance liquid chromatography-hybrid quadrupole-Orbitrap mass spectrometry. CoQs were extracted using hexane with the addition of butylated hydroxytoluene to limit oxidation during sample preparation. Chromatographic separation of the analytes was achieved on a Kinetex C18 column with the isocratic elution of 5 mM ammonium formate in 2-propanol/methanol (60:40) within 4 min. A full MS/all ion fragmentation (AIF) acquisition mode with mass accuracy < 5 ppm was used for detection and determination of redox states of CoQ9 and CoQ10 in healthy mice tissues using reduced and oxidized CoQ4 as internal standards. The validated method showed good linearity (r2 ≥ 0.9991), intraday, inter-day precision (CVs ≤ 11.9%) and accuracy (RE ≤±15.2%). In contrast to existing methods, the current method offers enhanced sensitivity (up to 52 fold) with LOD and LOQ ranged from 0.01 to 0.49 ng mL-1 and 0.04-1.48 ng mL-1, respectively. Moreover, we evaluated various diluents to investigate bench top stability (at 4 °C) of targeted analytes in tissue samples during LC-MS assay up to 24 h. Ethanol was determined to be an optimum diluent without any significant oxidation of reduced CoQ up to 24 h. The developed method offers a rapid, highly sensitive and selective strategy for the measurement of redox states of CoQs in clinical studies.
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Affiliation(s)
- Renu Pandey
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX 78712, USA; Dell Pediatric Research Institute, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA
| | - Christopher L Riley
- Department of Molecular Biosciences, College of Natural Sciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Edward M Mills
- Division of Pharmacy and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Stefano Tiziani
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX 78712, USA; Dell Pediatric Research Institute, Dell Medical School, The University of Texas at Austin, Austin, TX 78712, USA.
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41
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Gallidabino MD, Hamdan L, Murphy B, Barron LP. Suspect screening of halogenated carboxylic acids in drinking water using ion exchange chromatography – high resolution (Orbitrap) mass spectrometry (IC-HRMS). Talanta 2018; 178:57-68. [DOI: 10.1016/j.talanta.2017.08.092] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/25/2017] [Accepted: 08/29/2017] [Indexed: 10/18/2022]
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42
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Watanabe N, Higashi H, Nakamura S, Nomura K, Adachi Y, Taguchi M. The possible clinical impact of risperidone on P-glycoprotein-mediated transport of tacrolimus: A case report and in vitro
study. Biopharm Drug Dispos 2017; 39:30-37. [DOI: 10.1002/bdd.2109] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/11/2017] [Accepted: 10/02/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Nao Watanabe
- Graduate School of Medical and Pharmaceutical Sciences; University of Toyama; 2630 Sugitani Toyama 930-0194 Japan
| | - Hiroki Higashi
- Graduate School of Medical and Pharmaceutical Sciences; University of Toyama; 2630 Sugitani Toyama 930-0194 Japan
| | - Saki Nakamura
- Graduate School of Medical and Pharmaceutical Sciences; University of Toyama; 2630 Sugitani Toyama 930-0194 Japan
| | - Keiko Nomura
- Graduate School of Medical and Pharmaceutical Sciences; University of Toyama; 2630 Sugitani Toyama 930-0194 Japan
| | - Yuichi Adachi
- Graduate School of Medical and Pharmaceutical Sciences; University of Toyama; 2630 Sugitani Toyama 930-0194 Japan
| | - Masato Taguchi
- Graduate School of Medical and Pharmaceutical Sciences; University of Toyama; 2630 Sugitani Toyama 930-0194 Japan
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Van Meulebroek L, De Paepe E, Vercruysse V, Pomian B, Bos S, Lapauw B, Vanhaecke L. Holistic Lipidomics of the Human Gut Phenotype Using Validated Ultra-High-Performance Liquid Chromatography Coupled to Hybrid Orbitrap Mass Spectrometry. Anal Chem 2017; 89:12502-12510. [DOI: 10.1021/acs.analchem.7b03606] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Lieven Van Meulebroek
- Laboratory
of Chemical Analysis, Department of Veterinary Public Health and Food
Safety, Faculty of Veterinary Medicine, Ghent University, Salisburylaan
133, 9820 Merelbeke, Belgium
| | - Ellen De Paepe
- Laboratory
of Chemical Analysis, Department of Veterinary Public Health and Food
Safety, Faculty of Veterinary Medicine, Ghent University, Salisburylaan
133, 9820 Merelbeke, Belgium
| | - Vicky Vercruysse
- Laboratory
of Chemical Analysis, Department of Veterinary Public Health and Food
Safety, Faculty of Veterinary Medicine, Ghent University, Salisburylaan
133, 9820 Merelbeke, Belgium
| | - Beata Pomian
- Laboratory
of Chemical Analysis, Department of Veterinary Public Health and Food
Safety, Faculty of Veterinary Medicine, Ghent University, Salisburylaan
133, 9820 Merelbeke, Belgium
| | | | | | - Lynn Vanhaecke
- Laboratory
of Chemical Analysis, Department of Veterinary Public Health and Food
Safety, Faculty of Veterinary Medicine, Ghent University, Salisburylaan
133, 9820 Merelbeke, Belgium
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Kwong TC, Magnani B, Moore C. Urine and oral fluid drug testing in support of pain management. Crit Rev Clin Lab Sci 2017; 54:433-445. [PMID: 28990451 DOI: 10.1080/10408363.2017.1385053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In recent years, the abuse of opioid drugs has resulted in greater prevalence of addiction, overdose, and deaths attributable to opioid abuse. The epidemic of opioid abuse has prompted professional and government agencies to issue practice guidelines for prescribing opioids to manage chronic pain. An important tool available to providers is the drug test for use in the initial assessment of patients for possible opioid therapy, subsequent monitoring of compliance, and documentation of suspected aberrant drug behaviors. This review discusses the issues that most affect the clinical utility of drug testing in chronic pain management with opioid therapy. It focuses on the two most commonly used specimen matrices in drug testing: urine and oral fluid. The advantages and disadvantages of urine and oral fluid in the entire testing process, from specimen collection and analytical methodologies to result interpretation are reviewed. The analytical sensitivity and specificity limitations of immunoassays used for testing are examined in detail to draw attention to how these shortcomings can affect result interpretation and influence clinical decision-making in pain management. The need for specific identification and quantitative measurement of the drugs and metabolites present to investigate suspected aberrant drug behavior or unexpected positive results is analyzed. Also presented are recent developments in optimization of test menus and testing strategies, such as the modification of the standard screen and reflexed-confirmation testing model by eliminating some of the initial immunoassay-based tests and proceeding directly to definitive testing by mass spectrometry assays.
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Affiliation(s)
- Tai C Kwong
- a Department of Pathology and Laboratory Medicine , University of Rochester Medical Center , Rochester , NY , USA
| | - Barbarajean Magnani
- b Department of Pathology and Laboratory Medicine , Tufts Medical Center , Boston , MA , USA
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Lefeuvre S, Bois-Maublanc J, Hocqueloux L, Bret L, Francia T, Eleout-Da Violante C, Billaud EM, Barbier F, Got L. A simple ultra-high-performance liquid chromatography-high resolution mass spectrometry assay for the simultaneous quantification of 15 antibiotics in plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1065-1066:50-58. [PMID: 28946125 DOI: 10.1016/j.jchromb.2017.09.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 09/05/2017] [Accepted: 09/10/2017] [Indexed: 10/18/2022]
Abstract
Antibiotic (ATB) treatment of critically ill patients with pathophysiological injuries remains a challenge due to the constant increase in antimicrobial resistance. Therapeutic drug monitoring (TDM) is advised for ATB dose adjustments to avoid suboptimal concentrations and dose-related adverse effects. Therefore, a single and reliable analytical method for a broad selection of ATBs was developed using a high-resolution mass spectrometry (HRMS) platform for frequent use in intensive care units. An UHPLC assay coupled to high resolution accurate mass acquisition has been developed for the quantification of penicillins (amoxicillin, oxacillin, piperacillin, and ticarcillin), cephalosporines (cefepime, cefotaxime, ceftazidime, and ceftriaxone), carbapenems (ertapenem, imipenem, and meropenem), lincosamide (clindamycin), quinolones (ofloxacin and ciprofloxacin) and tazobactam. Plasma samples (100μL) were spiked with an internal standard solution followed by protein precipitation. Separation was achieved on an Accucore C18 column, which enabled sample analysis every 9min. All compounds were detected in electrospray positive ion mode and quantified with a linear regression between 0.5 and 32mg/L (r2>0.998). Overall precision and accuracy did not exceed 15%. No significant matrix effect was observed for the studied ATBs. Stored stock solutions at -20°C were stable for 6 months, except for amoxicillin and imipenem. Analytes in plasma were stable for 24h under ambient conditions as well as in post-preparation in an autosampler, except for amoxicillin and imipenem. This HRMS assay provides the simultaneous quantification of 15 ATB; it fulfills the usual quality criteria and was successfully applied for routine TDM of ATBs. The method is based on a full scan acquisition, and it would be easy to add other compounds to the present panel in the future, as this assay has already been proven to be efficient for different classes of compounds.
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Affiliation(s)
- S Lefeuvre
- Laboratory of Biochemistry, CHR Orléans, France.
| | | | - L Hocqueloux
- Tropical and Infectious Deseases Department, CHR Orléans, France
| | - L Bret
- Laboratory de Microbiology-Virology, CHR Orléans, France
| | - T Francia
- Laboratory of Biochemistry, CHR Orléans, France
| | | | - E M Billaud
- Pharmacology Department, AP-HP, Hôpital Européen Georges Pompidou, Paris Descartes University, Paris, France
| | - F Barbier
- Intensive care Department, CHR Orléans, France
| | - L Got
- Laboratory of Biochemistry, CHR Orléans, France
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Hu Y, Zheng Q, Wanek W. Flux Analysis of Free Amino Sugars and Amino Acids in Soils by Isotope Tracing with a Novel Liquid Chromatography/High Resolution Mass Spectrometry Platform. Anal Chem 2017; 89:9192-9200. [PMID: 28776982 PMCID: PMC5605124 DOI: 10.1021/acs.analchem.7b01938] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
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Soil fluxomics analysis can provide
pivotal information for understanding
soil biochemical pathways and their regulation, but direct measurement
methods are rare. Here, we describe an approach to measure soil extracellular
metabolite (amino sugar and amino acid) concentrations and fluxes
based on a 15N isotope pool dilution technique via liquid
chromatography and high-resolution mass spectrometry. We produced
commercially unavailable 15N and 13C labeled
amino sugars and amino acids by hydrolyzing peptidoglycan isolated
from isotopically labeled bacterial biomass and used them as tracers
(15N) and internal standards (13C). High-resolution
(Orbitrap Exactive) MS with a resolution of 50 000 allowed
us to separate different stable isotope labeled analogues across a
large range of metabolites. The utilization of 13C internal
standards greatly improved the accuracy and reliability of absolute
quantification. We successfully applied this method to two types of
soils and quantified the extracellular gross fluxes of 2 amino sugars,
18 amino acids, and 4 amino acid enantiomers. Compared to the influx
and efflux rates of most amino acids, similar ones were found for
glucosamine, indicating that this amino sugar is released through
peptidoglycan and chitin decomposition and serves as an important
nitrogen source for soil microorganisms. d-Alanine and d-glutamic acid derived from peptidoglycan decomposition exhibited
similar turnover rates as their l-enantiomers. This novel
approach offers new strategies to advance our understanding of the
production and transformation pathways of soil organic N metabolites,
including the unknown contributions of peptidoglycan and chitin decomposition
to soil organic N cycling.
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Affiliation(s)
- Yuntao Hu
- Division of Terrestrial Ecosystem Research, Department of Microbiology and Ecosystem Science, Research Network "Chemistry meets Microbiology", University of Vienna , Althanstraße 14, 1090 Vienna, Austria
| | - Qing Zheng
- Division of Terrestrial Ecosystem Research, Department of Microbiology and Ecosystem Science, Research Network "Chemistry meets Microbiology", University of Vienna , Althanstraße 14, 1090 Vienna, Austria
| | - Wolfgang Wanek
- Division of Terrestrial Ecosystem Research, Department of Microbiology and Ecosystem Science, Research Network "Chemistry meets Microbiology", University of Vienna , Althanstraße 14, 1090 Vienna, Austria
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Muñoz-Muñoz AC, Pekol T, Schubring D, Johnson C, Andrade L. Identification of Novel Opioid Interferences using High-Resolution Mass Spectrometry†. J Anal Toxicol 2017; 42:6-16. [DOI: 10.1093/jat/bkx065] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 08/02/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Teresa Pekol
- Dominion Diagnostics, 211 Circuit Drive, North Kingstown, RI 02852, USA
| | - Dana Schubring
- Dominion Diagnostics, 211 Circuit Drive, North Kingstown, RI 02852, USA
| | - Charlene Johnson
- Dominion Diagnostics, 211 Circuit Drive, North Kingstown, RI 02852, USA
| | - Lawrence Andrade
- Dominion Diagnostics, 211 Circuit Drive, North Kingstown, RI 02852, USA
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Zheng H, Zhu T, Li X, Ma J, Jia Q. Peanut agglutinin and β-cyclodextrin functionalized polymer monolith: Microextraction of IgG galactosylation coupled with online MS detection. Anal Chim Acta 2017; 983:141-148. [DOI: 10.1016/j.aca.2017.06.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 06/22/2017] [Accepted: 06/28/2017] [Indexed: 10/19/2022]
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50
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Melnik AV, da Silva RR, Hyde ER, Aksenov AA, Vargas F, Bouslimani A, Protsyuk I, Jarmusch AK, Tripathi A, Alexandrov T, Knight R, Dorrestein PC. Coupling Targeted and Untargeted Mass Spectrometry for Metabolome-Microbiome-Wide Association Studies of Human Fecal Samples. Anal Chem 2017. [PMID: 28628333 DOI: 10.1021/acs.analchem.7b01381] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Increasing appreciation of the gut microbiome's role in health motivates understanding the molecular composition of human feces. To analyze such complex samples, we developed a platform coupling targeted and untargeted metabolomics. The approach is facilitated through split flow from one UPLC, joint timing triggered by contact closure relays, and a script to retrieve the data. It is designed to detect specific metabolites of interest with high sensitivity, allows for correction of targeted information, enables better quantitation thus providing an advanced analytical tool for exploratory studies. Procrustes analysis revealed that untargeted approach provides a better correlation to microbiome data, associating specific metabolites with microbes that produce or process them. With the subset of over one hundred human fecal samples from the American Gut project, the implementation of the described coupled workflow revealed that targeted analysis using combination of single transition per compound with retention time misidentifies 30% of the targeted data and could lead to incorrect interpretations. At the same time, the targeted analysis extends detection limits and dynamic range, depending on the compounds, by orders of magnitude. A software application has been developed as a part of the workflow to allows for quantitative assessments based on calibration curves. Using this approach, we detect expected microbially modified molecules such as secondary bile acids and unexpected microbial molecules including Pseudomonas-associated quinolones and rhamnolipids in feces, setting the stage for metabolome-microbiome-wide association studies (MMWAS).
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Affiliation(s)
- Alexey V Melnik
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Ricardo R da Silva
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Embriette R Hyde
- Department of Pediatrics, University of California, San Diego , La Jolla, California 92093, United States
| | - Alexander A Aksenov
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Fernando Vargas
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Amina Bouslimani
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Ivan Protsyuk
- Structural and Computational Biology Unit, European Molecular Biology Laboratory , Heidelberg 69117, Germany
| | - Alan K Jarmusch
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Anupriya Tripathi
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States.,Department of Pediatrics, University of California, San Diego , La Jolla, California 92093, United States.,UC San Diego Center for Microbiome Innovation, University of California, San Diego , La Jolla, California 92093, United States
| | - Theodore Alexandrov
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States.,Structural and Computational Biology Unit, European Molecular Biology Laboratory , Heidelberg 69117, Germany
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego , La Jolla, California 92093, United States.,Department of Computer Science & Engineering, University of California, San Diego , La Jolla, California 92093, United States
| | - Pieter C Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
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