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Ikeda T, Kotani M. Thin-section- and matrix-free mass spectrometry imaging: Reproducible sample transfer using novel platinum-coated porous plate formed of glass beads. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024; 38:e9697. [PMID: 38356087 DOI: 10.1002/rcm.9697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/07/2023] [Accepted: 12/12/2023] [Indexed: 02/16/2024]
Abstract
RATIONALE Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) typically requires sample preparation such as sectioning and spraying of the matrix. Sample transfer using a Pt-coated porous plate formed of glass beads simplifies preparation and enables reproducible MSI measurements. METHODS The surface of a sintered-glass-bead porous plate was coated with Pt on one side of the plate. Polymer additives and the cross-section of a strawberry were chosen as the sample and transferred to the Pt-coated surface of the plate. This process was completely thin-section- and matrix-free. The prepared plates were analyzed using a commercial MALDI time-of-flight instrument. RESULTS Several constituents of the polymer additives (Irgafos 168 and Irganox 1010) and strawberry metabolites (hexose, citric acid, and sucrose) were detected without organic matrices. These ion images were obtained with a special distribution of the retained constituents. Duplicate prepared plates using the same strawberry cross-section reproduced the ion images. CONCLUSIONS A sample transfer process using a Pt-coated porous plate formed of glass beads was demonstrated as an alternative preparation method for MSI. This process has the potential to simplify MSI preparation and achieve easily reproducible MSI measurements.
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Affiliation(s)
- Takamasa Ikeda
- Hamamatsu Photonics KK, Iwata, Shizuoka, Japan
- The Graduate School for the Creation of New Photonics Industries, Hamamatsu, Shizuoka, Japan
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Pena-Rodríguez E, García-Berrocoso T, Vázquez Fernández E, Otero-Espinar FJ, Abian J, Fernández-Campos F. Monitoring dexamethasone skin biodistribution with ex vivo MALDI-TOF mass spectrometry imaging and confocal Raman microscopy. Int J Pharm 2023; 636:122808. [PMID: 36889415 DOI: 10.1016/j.ijpharm.2023.122808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/08/2023]
Abstract
Two of the most promising techniques in terms of ex vivo skin imaging and quantifying are confocal Raman microscopy and MALDI-TOF mass spectrometry imaging (MALDI-TOF MSI). Both techniques were set up, and the semiquantitative skin biodistribution of previously developed dexamethasone (DEX) loaded lipomers was compared using Benzalkonium chloride (BAK) as a tracer of the nanoparticles. In MALDI-TOF MSI, DEX was derivatised with GirT (DEX-GirT) and the semiquantitative biodistribution of both DEX-GirT and BAK was successfully obtained. The amount of DEX measured by confocal Raman microscopy was higher than that measured by MALDI-TOF MSI, but MALDI-TOF MSI proved to be a more suitable technique for tracing BAK. An absorption-promoting tendency of DEX loaded in lipomers versus a free-DEX solution was observed in confocal Raman microscopy. The higher spatial resolution of confocal Raman microscopy (350 nm) with respect to MALDI-TOF MSI (50 μm) allowed to observe specific skin structures like hair follicles. Nevertheless, the faster sampling rate of MALDI-TOF-MSI, permitted the analysis of larger tissue regions. In conclusion, both techniques allowed to simultaneously analyze semiquantitative data together with qualitative images of biodistribution, which is a very helpful tool when designing nanoparticles that accumulate in specific anatomical regions.
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Affiliation(s)
- Eloy Pena-Rodríguez
- Laboratory Reig Jofre, R&D Department, 08970, Sant Joan Despí, Barcelona, Spain.
| | - Teresa García-Berrocoso
- Biological and Environmental Proteomics, Institut d'Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Laboratorio de Proteómica CSIC/Universitat Autònoma de Barcelona (UAB), IIBB-CSIC, Barcelona, Spain
| | - Ezequiel Vázquez Fernández
- Pharmacology, Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - Francisco J Otero-Espinar
- Pharmacology, Pharmacy and Pharmaceutical Technology Department, Faculty of Pharmacy, University of Santiago de Compostela (USC), Santiago de Compostela, Spain; Parqueasil Group, Health Research Institute of Santiago de Compostela (FIDIS), Santiago de Compostela, Spain; Institute of Materials (iMATUS), University of Santiago de Compostela (USC), Santiago de Compostela, Spain.
| | - Joaquin Abian
- Biological and Environmental Proteomics, Institut d'Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Laboratorio de Proteómica CSIC/Universitat Autònoma de Barcelona (UAB), IIBB-CSIC, Barcelona, Spain
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Quantitative Mass Spectrometry Imaging of Bleomycin in Skin Using a Mimetic Tissue Model for Calibration. Pharmaceuticals (Basel) 2022; 15:ph15121583. [PMID: 36559034 PMCID: PMC9786816 DOI: 10.3390/ph15121583] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/27/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
The aim of Quantitative mass spectrometry imaging (Q-MSI) is to provide distribution analysis and quantitation from one single mass-spectrometry-based experiment, and several quantitation methods have been devised for Q-MSI. Mimetic tissue models based on spiked tissue homogenates are considered one of the most accurate ways to perform Q-MSI, since the analyte is present in a well-defined concentration in a sample matrix highly similar to the one of the unknown sample to be analyzed. The delivery of drugs in skin is among the most frequent types of pharmaceutical MSI studies. Here, a mimetic tissue model is extended for use on the skin, which, due to its high collagen content, is different from most other tissue as the homogenates become extremely viscous. A protocol is presented which overcomes this by the addition of water and the handling of the homogenate at an elevated temperature where the viscosity is lower. Using a mimetic tissue model, a method was developed for the quantitative imaging of bleomycin in skin. To compensate for the signal drift and the inhomogeneities in the skin, an internal standard was included in the method. The method was tested on skin from a pig which had had an electropneumatic injection of bleomycin into the skin. Quantification was made at several regions in a cross section of the skin at the injection site, and the results were compared to the results of a quantitative LC-MS on a neighboring tissue biopsy from the same animal experiment. The overall tissue concentration determined by the LC-MS was within the range of the different regions quantified by the Q-MSI. As the model provides the results of the same order of magnitude as a LC-MS, it can either be used to replace LC-MS in skin studies where MSI and LC-MS are today carried out in combination, or it can add quantitative information to skin studies which are otherwise carried out by MSI alone.
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4
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Maia M, McCann A, Malherbe C, Far J, Cunha J, Eiras-Dias J, Cordeiro C, Eppe G, Quinton L, Figueiredo A, De Pauw E, Sousa Silva M. Grapevine leaf MALDI-MS imaging reveals the localisation of a putatively identified sucrose metabolite associated to Plasmopara viticola development. FRONTIERS IN PLANT SCIENCE 2022; 13:1012636. [PMID: 36299787 PMCID: PMC9589281 DOI: 10.3389/fpls.2022.1012636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Despite well-established pathways and metabolites involved in grapevine-Plasmopara viticola interaction, information on the molecules involved in the first moments of pathogen contact with the leaf surface and their specific location is still missing. To understand and localise these molecules, we analysed grapevine leaf discs infected with P. viticola with MSI. Plant material preparation was optimised, and different matrices and solvents were tested. Our data shows that trichomes hamper matrix deposition and the ion signal. Results show that putatively identified sucrose presents a higher accumulation and a non-homogeneous distribution in the infected leaf discs in comparison with the controls. This accumulation was mainly on the veins, leading to the hypothesis that sucrose metabolism is being manipulated by the development structures of P. viticola. Up to our knowledge this is the first time that the localisation of a putatively identified sucrose metabolite was shown to be associated to P. viticola infection sites.
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Affiliation(s)
- Marisa Maia
- Laboratório de FTICR e Espectrometria de Massa Estrutural, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
- Grapevine Pathogen Systems Lab (GPS Lab), Biosystems and Integrative Sciences Institute (BioISI), Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - Andréa McCann
- Mass Spectrometry Laboratory (MolSys), University of Liège, Liège, Belgium
| | - Cédric Malherbe
- Mass Spectrometry Laboratory (MolSys), University of Liège, Liège, Belgium
| | - Johann Far
- Mass Spectrometry Laboratory (MolSys), University of Liège, Liège, Belgium
| | - Jorge Cunha
- Estação Vitivinícola Nacional, Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Torres-Vedras, Portugal
| | - José Eiras-Dias
- Estação Vitivinícola Nacional, Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Torres-Vedras, Portugal
| | - Carlos Cordeiro
- Laboratório de FTICR e Espectrometria de Massa Estrutural, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - Gauthier Eppe
- Mass Spectrometry Laboratory (MolSys), University of Liège, Liège, Belgium
| | - Loïc Quinton
- Mass Spectrometry Laboratory (MolSys), University of Liège, Liège, Belgium
| | - Andreia Figueiredo
- Grapevine Pathogen Systems Lab (GPS Lab), Biosystems and Integrative Sciences Institute (BioISI), Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - Edwin De Pauw
- Mass Spectrometry Laboratory (MolSys), University of Liège, Liège, Belgium
| | - Marta Sousa Silva
- Laboratório de FTICR e Espectrometria de Massa Estrutural, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
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Noun M, Akoumeh R, Abbas I. Cell and Tissue Imaging by TOF-SIMS and MALDI-TOF: An Overview for Biological and Pharmaceutical Analysis. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2022; 28:1-26. [PMID: 34809729 DOI: 10.1017/s1431927621013593] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The potential of mass spectrometry imaging (MSI) has been demonstrated in cell and tissue research since 1970. MSI can reveal the spatial distribution of a wide range of atomic and molecular ions detected from biological sample surfaces, it is a powerful and valuable technique used to monitor and detect diverse chemical and biological compounds, such as drugs, lipids, proteins, and DNA. MSI techniques, notably matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) and time of flight secondary ion mass spectrometry (TOF-SIMS), witnessed a dramatic upsurge in studying and investigating biological samples especially, cells and tissue sections. This advancement is attributed to the submicron lateral resolution, the high sensitivity, the good precision, and the accurate chemical specificity, which make these techniques suitable for decoding and understanding complex mechanisms of certain diseases, as well as monitoring the spatial distribution of specific elements, and compounds. While the application of both techniques for the analysis of cells and tissues is thoroughly discussed, a briefing of MALDI-TOF and TOF-SIMS basis and the adequate sampling before analysis are briefly covered. The importance of MALDI-TOF and TOF-SIMS as diagnostic tools and robust analytical techniques in the medicinal, pharmaceutical, and toxicology fields is highlighted through representative published studies.
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Affiliation(s)
- Manale Noun
- Lebanese Atomic Energy Commission - NCSR, Beirut, Lebanon
| | - Rayane Akoumeh
- Lebanese Atomic Energy Commission - NCSR, Beirut, Lebanon
| | - Imane Abbas
- Lebanese Atomic Energy Commission - NCSR, Beirut, Lebanon
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6
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Houdelet C, Arafah K, Bocquet M, Bulet P. Molecular histoproteomy by MALDI mass spectrometry imaging to uncover markers of the impact of Nosema on Apis mellifera. Proteomics 2022; 22:e2100224. [PMID: 34997678 DOI: 10.1002/pmic.202100224] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/29/2021] [Accepted: 01/03/2022] [Indexed: 12/12/2022]
Abstract
Matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI IMS) is a powerful technology used to investigate the spatio-temporal distribution of a huge number of molecules throughout a body/tissue section. In this paper, we report the use of MALDI IMS to follow the molecular impact of an experimental infection of Apis mellifera with the microsporidia Nosema ceranae. We performed representative molecular mass fingerprints of selected tissues obtained by dissection. This was followed by MALDI IMS workflows optimization including specimen embedding and positioning as well as washing and matrix application. We recorded the local distribution of peptides/proteins within different tissues from experimentally infected versus non infected honeybees. As expected, a distinction in these molecular profiles between the two conditions was recorded from different anatomical sections of the gut tissue. More importantly, we observed differences in the molecular profiles in the brain, thoracic ganglia, hypopharyngeal glands, and hemolymph. We introduced MALDI IMS as an effective approach to monitor the impact of N. ceranae infection on A. mellifera. This opens perspectives for the discovery of molecular changes in peptides/proteins markers that could contribute to a better understanding of the impact of stressors and toxicity on different tissues of a bee in a single experiment.
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Affiliation(s)
- Camille Houdelet
- CR Université Grenoble Alpes, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Grenoble, France.,Saint Julien-en Genevois, Plateforme BioPark d'Archamps, France
| | - Karim Arafah
- Saint Julien-en Genevois, Plateforme BioPark d'Archamps, France
| | | | - Philippe Bulet
- CR Université Grenoble Alpes, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, Grenoble, France.,Saint Julien-en Genevois, Plateforme BioPark d'Archamps, France
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7
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DESI-MS imaging to visualize spatial distribution of xenobiotics and endogenous lipids in the skin. Int J Pharm 2021; 607:120967. [PMID: 34352336 DOI: 10.1016/j.ijpharm.2021.120967] [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] [Received: 05/27/2021] [Revised: 07/20/2021] [Accepted: 07/30/2021] [Indexed: 01/18/2023]
Abstract
The cutaneous biodistribution method (CBM) yields a high-resolution quantitative profile of drug deposition as a function of skin depth. However, it provides limited details about drug spatial distribution or penetration pathways. Mass spectrometry imaging (MSI) can complement the detailed quantitative data generated by CBM studies. The objectives of this work were to use desorption electrospray ionization (DESI)-MSI to (i) investigate the spatial cutaneous distributions of a topically applied drug and excipient and relate them to skin structures and (ii) image endogenous skin components and combine these results to gain insight into drug penetration routes. Porcine skin was used to compare two bioequivalent creams of econazole nitrate (ECZ) and a micelle formulation based on D-α-tocopheryl succinate polyethylene glycol 1000 (TPGS). DESI-MSI successfully imaged the cutaneous spatial distribution of ECZ and TPGS in 40 µm-thick horizontal sections and vertical cross-sections of the skin. Interestingly, clinically bioequivalent formulations did not appear to exhibit the same molecular distribution of ECZ in XY-horizontal sections. DESI-MSI also enabled visualization of TPGS (m/z 772.4706), mainly in the upper epidermis (≤80 µm). In conclusion, through co-localization of drugs and excipients with endogenous elements of the skin, DESI-MSI could further our understanding of the cutaneous penetration pathways of xenobiotics.
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8
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Kertesz V, Cahill JF. Spatially resolved absolute quantitation in thin tissue by mass spectrometry. Anal Bioanal Chem 2021; 413:2619-2636. [PMID: 33140126 DOI: 10.1007/s00216-020-02964-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mass spectrometry (MS) has become the de facto tool for routine quantitative analysis of biomolecules. MS is increasingly being used to reveal the spatial distribution of proteins, metabolites, and pharmaceuticals in tissue and interest in this area has led to a number of novel spatially resolved MS technologies. Most spatially resolved MS measurements are qualitative in nature due to a myriad of potential biases, such as sample heterogeneity, sampling artifacts, and ionization effects. As applications of spatially resolved MS in the pharmacological and clinical fields increase, demand has become high for quantitative MS imaging and profiling data. As a result, several varied technologies now exist that provide differing levels of spatial and quantitative information. This review provides an overview of MS profiling and imaging technologies that have demonstrated quantitative analysis from tissue. Focus is given on the fundamental processes affecting quantitative analysis in an array of MS imaging and profiling technologies and methods to address these biases.Graphical abstract.
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Affiliation(s)
- Vilmos Kertesz
- Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6131, USA.
| | - John F Cahill
- Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6131, USA.
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9
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Wang N, Dartois V, Carter CL. An optimized method for the detection and spatial distribution of aminoglycoside and vancomycin antibiotics in tissue sections by mass spectrometry imaging. JOURNAL OF MASS SPECTROMETRY : JMS 2021; 56:e4708. [PMID: 33586279 PMCID: PMC8032321 DOI: 10.1002/jms.4708] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/20/2021] [Accepted: 01/26/2021] [Indexed: 05/08/2023]
Abstract
Suboptimal antibiotic dosing has been identified as one of the key drivers in the development of multidrug-resistant (MDR) bacteria that have become a global health concern. Aminoglycosides and vancomycin are broad-spectrum antibiotics used to treat critically ill patients infected by a variety of MDR bacterial species. Resistance to these antibiotics is becoming more prevalent. In order to design proper antibiotic regimens that maximize efficacy and minimize the development of resistance, it is pivotal to obtain the in situ pharmacokinetic-pharmacodynamic profiles at the sites of infection. Mass spectrometry imaging (MSI) is the ideal technique to achieve this. Aminoglycosides, due to their structure, suffer from poor ionization efficiency. Additionally, ion suppression effects by endogenous molecules greatly inhibit the detection of aminoglycosides and vancomycin at therapeutic levels. In the current study, an optimized method was developed that enabled the detection of these antibiotics by MSI. Tissue spotting experiments demonstrated a 5-, 15-, 35-, and 54-fold increase in detection sensitivity in the washed samples for kanamycin, amikacin, streptomycin, and vancomycin, respectively. Tissue mimetic models were utilized to optimize the washing time and matrix additive concentration. These studies determined the improved limit of detection was 40 to 5 μg/g of tissue for vancomycin and streptomycin, and 40 to 10 μg/g of tissue for kanamycin and amikacin. The optimized protocol was applied to lung sections from mice dosed with therapeutic levels of kanamycin and vancomycin. The washing protocol enabled the first drug distribution investigations of aminoglycosides and vancomycin by MSI, paving the way for site-of-disease antibiotic penetration studies.
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Affiliation(s)
- Ning Wang
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
| | - Véronique Dartois
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
- Department of Medical Sciences, Hackensack School of Medicine, Nutley, New Jersey, USA
| | - Claire L. Carter
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
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Labroo P, Irvin J, Johnson J, Sieverts M, Miess J, Robinson I, Baetz N, Garrett C, Sopko N. Physical characterization of swine and human skin: Correlations between Raman spectroscopy, Tensile testing, Atomic force microscopy (AFM), Scanning electron microscopy (SEM), and Multiphoton microscopy (MPM). Skin Res Technol 2020; 27:501-510. [PMID: 33216396 DOI: 10.1111/srt.12976] [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: 03/24/2020] [Revised: 07/28/2020] [Accepted: 09/07/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Swine dorsum is commonly utilized as a model for studying skin wounds and assessment of dermatological and cosmetic medicaments. The human abdomen is a common location for dermatological intervention. OBJECTIVE This study provides a correlation between spectral, mechanical, and structural characterization techniques, utilized for evaluating human abdominal skin and swine dorsum. METHODS Raman spectroscopy (RS), tensile testing, ballistometry, AFM, SEM, and MPM were utilized to characterize and compare full-thickness skin properties in swine and human model. RESULTS RS of both species' skin types revealed a similar assignment of vibrations in the fingerprint and the high wavenumber spectral regions. Structural imaging and mechanical characterization using ballistometry and tensile testing displayed differences in the inherent functional properties of human and swine skin. These differences correlated with variations in the Raman peak ratios, collagen intensity measured using SEM and MPM and collagen density measured using AFM. CONCLUSION A comprehensive evaluation of swine skin as a suitable substitute for human skin for mechanical and structural comparisons was performed. This data should be considered for better understanding the swine skin model for cutaneous drug delivery and wound applications. Additionally, correlation between RS, tensile testing, AFM, SEM, and MPM was performed as skin characterization tools.
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Affiliation(s)
- Pratima Labroo
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
| | - Jennifer Irvin
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
| | - Joshua Johnson
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
| | - Michael Sieverts
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
| | - James Miess
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
| | - Ian Robinson
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
| | - Nicholas Baetz
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
| | - Caroline Garrett
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
| | - Nikolai Sopko
- Department of Research and Development, PolarityTE MD, Inc., Salt Lake City, UT, USA
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Handler AM, Fallah M, Just Pedersen A, Pommergaard Pedersen G, Troensegaard Nielsen K, Janfelt C. MALDI mass spectrometry imaging as a complementary analytical method for improved skin distribution analysis of drug molecule and excipients. Int J Pharm 2020; 590:119949. [DOI: 10.1016/j.ijpharm.2020.119949] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/23/2020] [Accepted: 10/02/2020] [Indexed: 10/23/2022]
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12
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Zhang D, Bian Q, Zhou Y, Huang Q, Gao J. The application of label-free imaging technologies in transdermal research for deeper mechanism revealing. Asian J Pharm Sci 2020; 16:265-279. [PMID: 34276818 PMCID: PMC8261078 DOI: 10.1016/j.ajps.2020.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/23/2020] [Accepted: 07/06/2020] [Indexed: 12/13/2022] Open
Abstract
The penetration behavior of topical substances in the skin not only relates to the transdermal delivery efficiency but also involves the safety and therapeutic effect of topical products, such as sunscreen and hair growth products. Researchers have tried to illustrate the transdermal process with diversified theories and technologies. Directly observing the distribution of topical substances on skin by characteristic imaging is the most convincing approach. Unfortunately, fluorescence labeling imaging, which is commonly used in biochemical research, is limited for transdermal research for most topical substances with a molecular mass less than 500 Da. Label-free imaging technologies possess the advantages of not requiring any macromolecular dyes, no tissue destruction and an extensive substance detection capability, which has enabled rapid development of such technologies in recent years and their introduction to biological tissue analysis, such as skin samples. Through the specific identification of topical substances and endogenous tissue components, label-free imaging technologies can provide abundant tissue distribution information, enrich theoretical and practical guidance for transdermal drug delivery systems. In this review, we expound the mechanisms and applications of the most popular label-free imaging technologies in transdermal research at present, compare their advantages and disadvantages, and forecast development prospects.
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Affiliation(s)
- Danping Zhang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiong Bian
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi Zhou
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qiaoling Huang
- The Third People's Hospital of Hangzhou, Hangzhou 310012, China
| | - Jianqing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Jiangsu Engineering Research Center for New-Type External and Transdermal Preparations, Changzhou 213000, China
- Corresponding author.
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13
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Matsuda T, Suzuki Y, Fujisawa T, Suga Y, Saito N, Suda T, Yao I. Imaging mass spectrometry to visualise increased acetylcholine in lungs of asthma model mice. Anal Bioanal Chem 2020; 412:4327-4341. [PMID: 32367293 PMCID: PMC7320054 DOI: 10.1007/s00216-020-02670-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 04/14/2020] [Accepted: 04/17/2020] [Indexed: 01/12/2023]
Abstract
Acetylcholine (ACh) is a crucial neurotransmitter that is involved in airway constriction. In fact, excessive ACh binding to M3 muscarinic receptor leads to airflow obstruction via smooth muscle contraction. Previous studies have suggested cholinergic malfunction in the pathogenesis of asthma; however, the distribution and abundance of ACh in asthmatic lungs remain unclear because of the challenges of imaging ACh in lung tissue. In this study, we successfully detected and visualised ACh in mouse lung tissue by using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). Here, we applied the ACh imaging method to the two groups of house dust mite-sensitised asthma model mice harbouring different inflammatory levels. The imaging results showed that the lungs of mice had a relatively uniform ACh distribution with some areas of heterogeneity. The lungs of asthma model mice had significantly more ACh than control mice, and the ACh increase was potentiated with intense eosinophil infiltration without acetylcholinesterase deficits. These results indicate that ACh hypersecretion is mediated by an increased infiltration of eosinophils in asthma aggravation. This study provides the first evidence that secreted ACh is elevated with asthma severity in the lungs of asthma model animals by a direct ACh imaging technique with FT-ICR-MS.
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Affiliation(s)
- Takeshi Matsuda
- Department of Optical Imaging, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan.,Department of Pharmaceutical Sciences, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan
| | - Yuzo Suzuki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Tomoyuki Fujisawa
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Yasunori Suga
- Nippon Boehringer Ingelheim Co., Ltd., 2-1-1 Osaki, Shinagawa-ku, Tokyo, 141-6017, Japan
| | - Nobuyuki Saito
- Nippon Boehringer Ingelheim Co., Ltd., 2-1-1 Osaki, Shinagawa-ku, Tokyo, 141-6017, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Ikuko Yao
- Department of Optical Imaging, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan. .,International Mass Imaging Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan. .,Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.
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14
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Imaging and quantifying drug delivery in skin - Part 1: Autoradiography and mass spectrometry imaging. Adv Drug Deliv Rev 2020; 153:137-146. [PMID: 31778729 DOI: 10.1016/j.addr.2019.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/21/2019] [Accepted: 11/18/2019] [Indexed: 12/14/2022]
Abstract
In this two-part review we present an up-to-date description of different imaging methods available to map the localization of drugs on skin as a complement of established ex-vivo absorption studies. This first part deals with invasive methods which are grouped in two classes according to their underlying principles: i) methods using radioactivity such as autoradiography and ii) mass spectrometry methods such as MALDI and SIMS. For each method, a description of the principle is given along with example applications of imaging and quantifying drug delivery in human skin. Thanks to these techniques a better assessment of the fate of drugs is obtained: its localization on a particular skin structure, its potential accumulation, etc. A critical comparison in terms of capabilities, sensitivity and practical applicability is included that will help the reader to select the most appropriate technique depending on the particular problem to be solved.
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15
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Jarmusch AK, Elijah EO, Vargas F, Bouslimani A, da Silva RR, Ernst M, Wang M, del Rosario KK, Dorrestein PC, Tsunoda SM. Initial Development toward Non-Invasive Drug Monitoring via Untargeted Mass Spectrometric Analysis of Human Skin. Anal Chem 2019; 91:8062-8069. [DOI: 10.1021/acs.analchem.8b05854] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Alan K. Jarmusch
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Emmanuel O. Elijah
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- 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
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- 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
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- 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
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- NPPNS, Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, 14040-903 Ribeirão Preto, SP, Brazil
| | - Madeleine Ernst
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Mingxun Wang
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Krizia K. del Rosario
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Pieter C. Dorrestein
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Shirley M. Tsunoda
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
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16
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Chen J, Hu Y, Lu Q, Wang P, Zhan H. Molecular imaging of small molecule drugs in animal tissues using laser desorption postionization mass spectrometry. Analyst 2018; 142:1119-1124. [PMID: 28294229 DOI: 10.1039/c6an02721k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Localization and quantification of the target drug in tissues is a key indicator of efficacy in drug discovery. In contrast to established methods that require matrices and complex sample pretreatment steps, matrix-free and low cost in situ analysis of small molecule drugs by mass spectrometry (MS) remains challenging. Here, we present a novel approach, laser desorption postionization (LDPI), which is coupled to a linear time-of-flight (TOF) MS and used to image the distribution of acriflavine (ACF) directly from a histological section of mouse kidney without any matrix or sample pretreatment. The identification of the mass peaks assigned to ACF was further confirmed by DESI-MS/MS. Moreover, the matrix effect from the tissue section was explored, showing minimal desorption and ionization suppression in the LDPI-MS process. LDPI-MS imaging (LDPI-MSI) was performed on 30 μm kidney sections from mice 15 min postdose that were dosed with 30 mg kg-1 of ACF by monitoring the fragment ion at m/z 209. The LDPI-MS image revealed a global view of the distribution of ACF in the kidney compartments (pelvis, medulla, and cortex). Estimated concentrations of ACF residue in mouse kidney were obtained by LDPI-MSI and LC-MS/MS and a 12.1% difference in measured tissue concentration was found. These results suggest that the use of LDPI-MS in small molecule drug localization and quantification directly from biological tissue at the same time is favorable.
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Affiliation(s)
- Jiaxin Chen
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P.R. China.
| | - Yongjun Hu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P.R. China.
| | - Qiao Lu
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P.R. China.
| | - Pengchao Wang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P.R. China.
| | - Huaqi Zhan
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, P.R. China.
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17
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Morineau L, Jacobsen SC, Kleberg K, Hansen HS, Janfelt C. Delivery of amitriptyline by intravenous and intraperitoneal administration compared in the same animal by whole-body mass spectrometry imaging of a stable isotope labelled drug substance in mice. Expert Opin Drug Deliv 2018; 15:1157-1163. [PMID: 30359150 DOI: 10.1080/17425247.2018.1541084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND The distribution and metabolism of a drug in the organism are dependent on the administration route as well as on the drug formulation. It is important to be able to assess which impact the administration route or formulation of a drug has for its distribution and metabolism. METHODS The antidepressant drug amitriptyline was intravenously (IV) dosed to a mouse and immediately after, a similar amount of a deuterium-labeled version of the drug was intraperitoneally (IP) dosed to the same animal. Whole-body cryo-sections were made at t = 5, 15, 30, and 60 min post-dosing, and the two drug substances and metabolites were imaged by DESI-MS/MS. RESULTS After 5 min, the IV dosed drug was detected throughout the animal, while the IP dosed drug was primarily found in the abdominal cavity. At later times, the differences between the two administration routes became less pronounced. Two administration routes provided highly similar metabolite distributions, also at early time points. CONCLUSION The method provides a unique way to compare delivery and metabolism of a drug by different administration routes or formulations in the very same animal, eliminating uncertainties caused by animal-to-animal variation and avoiding the use of radioactive labeling.
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Affiliation(s)
- Loïs Morineau
- a UFR Sciences et Techniques , Université de Nantes , Nantes , France
| | - Sophie Chakroun Jacobsen
- b Department of Pharmacy, Faculty of Health and Medical Sciences , University of Copenhagen , Copenhagen , Denmark
| | - Karen Kleberg
- c Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences , University of Copenhagen , Copenhagen , Denmark
| | - Harald S Hansen
- c Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences , University of Copenhagen , Copenhagen , Denmark
| | - Christian Janfelt
- b Department of Pharmacy, Faculty of Health and Medical Sciences , University of Copenhagen , Copenhagen , Denmark
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18
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Russo C, Brickelbank N, Duckett C, Mellor S, Rumbelow S, Clench MR. Quantitative Investigation of Terbinafine Hydrochloride Absorption into a Living Skin Equivalent Model by MALDI-MSI. Anal Chem 2018; 90:10031-10038. [PMID: 30024732 DOI: 10.1021/acs.analchem.8b02648] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The combination of microspotting of analytical and internal standards, matrix sublimation, and recently developed software for quantitative mass spectrometry imaging has been used to develop a high-resolution method for the determination of terbinafine hydrochloride in the epidermal region of a full thickness living skin equivalent model. A quantitative assessment of the effect of the addition of the penetration enhancer (dimethyl isosorbide (DMI)) to the delivery vehicle has also been performed, and data have been compared to those obtained from LC-MS/MS measurements of homogenates of isolated epidermal tissue. At 10% DMI, the levels of signal detected for the drug in the epidermis were 0.20 ± 0.072 mg/g tissue for QMSI and 0.28 ± 0.040 mg/g tissue for LC-MS/MS at 50% DMI 0.69 ± 0.23 mg/g tissue for QMSI and 0.66 ± 0.057 mg/g tissue for LC-MS/MS. Comparison of means and standard deviations indicates no significant difference between the values obtained by the two methods.
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Affiliation(s)
- Cristina Russo
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre , Sheffield Hallam University , Howard Street , Sheffield S1 1WB , U.K
| | - Neil Brickelbank
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre , Sheffield Hallam University , Howard Street , Sheffield S1 1WB , U.K
| | - Catherine Duckett
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre , Sheffield Hallam University , Howard Street , Sheffield S1 1WB , U.K
| | - Steve Mellor
- Croda International Plc , Cowick Hall , Snaith , Goole, East Yorkshire DN14 9AA , U.K
| | - Stephen Rumbelow
- Croda Inc. , 315 Cherry Lane New Castle , Delaware 19720 , United States
| | - Malcolm R Clench
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre , Sheffield Hallam University , Howard Street , Sheffield S1 1WB , U.K
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19
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Bonnel D, Legouffe R, Eriksson AH, Mortensen RW, Pamelard F, Stauber J, Nielsen KT. MALDI imaging facilitates new topical drug development process by determining quantitative skin distribution profiles. Anal Bioanal Chem 2018; 410:2815-2828. [PMID: 29546543 DOI: 10.1007/s00216-018-0964-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/07/2018] [Accepted: 02/14/2018] [Indexed: 01/10/2023]
Abstract
Generation of skin distribution profiles and reliable determination of drug molecule concentration in the target region are crucial during the development process of topical products for treatment of skin diseases like psoriasis and atopic dermatitis. Imaging techniques like mass spectrometric imaging (MSI) offer sufficient spatial resolution to generate meaningful distribution profiles of a drug molecule across a skin section. In this study, we use matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) to generate quantitative skin distribution profiles based on tissue extinction coefficient (TEC) determinations of four different molecules in cross sections of human skin explants after topical administration. The four drug molecules: roflumilast, tofacitinib, ruxolitinib, and LEO 29102 have different physicochemical properties. In addition, tofacitinib was administrated in two different formulations. The study reveals that with MALDI-MSI, we were able to observe differences in penetration profiles for both the four drug molecules and the two formulations and thereby demonstrate its applicability as a screening tool when developing a topical drug product. Furthermore, the study reveals that the sensitivity of the MALDI-MSI techniques appears to be inversely correlated to the drug molecules' ability to bind to the surrounding tissues, which can be estimated by their Log D values. Graphical abstract.
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Affiliation(s)
- David Bonnel
- ImaBiotech SAS, Parc Eurasanté, 885 Avenue Eugène Avinée, 59120, Loos, France
| | - Raphaël Legouffe
- ImaBiotech SAS, Parc Eurasanté, 885 Avenue Eugène Avinée, 59120, Loos, France
| | | | | | - Fabien Pamelard
- ImaBiotech SAS, Parc Eurasanté, 885 Avenue Eugène Avinée, 59120, Loos, France
| | - Jonathan Stauber
- ImaBiotech SAS, Parc Eurasanté, 885 Avenue Eugène Avinée, 59120, Loos, France.,ImaBiotech Corp, 44 Manning Road Unit 3, Billerica, MA, 01821, USA
| | - Kim T Nielsen
- LEO Pharma A/S, Industriparken 55, 2750, Ballerup, Denmark.
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20
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Aboulmagd S, Esteban-Fernández D, Moreno-Gordaliza E, Neumann B, El-Khatib AH, Lázaro A, Tejedor A, Gómez-Gómez MM, Linscheid MW. Dual Internal Standards with Metals and Molecules for MALDI Imaging of Kidney Lipids. Anal Chem 2017; 89:12727-12734. [DOI: 10.1021/acs.analchem.7b02819] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sarah Aboulmagd
- Department
of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany
| | - Diego Esteban-Fernández
- Department
of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany
| | - Estefanía Moreno-Gordaliza
- Department
of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Avda. Complutense s/n, 28040, Madrid, Spain
| | - Boris Neumann
- Proteome Factory, Magnusstraße 11, 12489 Berlin, Germany
- Charité-Universitätmedizin Berlin, Institute of Pharmacology, Hessische Straße 3-4, 10115 Berlin, Germany
| | - A. H. El-Khatib
- Department
of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany
- Pharmaceutical
Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, 11566 Cairo, Egypt
| | - Alberto Lázaro
- Renal Pathophysiology
Laboratory, Department of Nephrology, Instituto de Investigación
Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, 28007, Madrid, Spain
| | - Alberto Tejedor
- Renal Pathophysiology
Laboratory, Department of Nephrology, Instituto de Investigación
Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, C/Dr. Esquerdo 46, 28007, Madrid, Spain
| | - M. Milagros Gómez-Gómez
- Department
of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, Avda. Complutense s/n, 28040, Madrid, Spain
| | - Michael W. Linscheid
- Department
of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Strasse 2, 12489 Berlin, Germany
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21
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Motoyama A, Kihara K. Mass Spectrometry in Cosmetic Science: Advanced Ionization Techniques for Detecting Trace Molecules in or on Human Skin. ACTA ACUST UNITED AC 2017; 6:S0071. [PMID: 28959516 DOI: 10.5702/massspectrometry.s0071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 07/19/2017] [Indexed: 01/08/2023]
Abstract
To provide safe and effective products to customers in the cosmetic industry, mass spectrometry (MS) is an indispensable analytical tool. In addition to its outstanding sensitivity and specificity, the method is applicable to a wide variety of compounds, which makes it irreplaceable for the development of cosmetics, which requires the analysis of complex systems. Because most cosmetic products are applied directly to the skin and function as they are designed, monitoring the molecular compositions of endogenous or exogenous compounds in or on the skin is crucial to ensure the safety and efficacy of a cosmetic product. Recent advancements in MS and ionization techniques, such as MS imaging and ambient ionization, now provide access to richer and deeper molecular information with less time and effort. This brief review discusses advanced ionization techniques that are currently used in the field of cosmetic science using two examples, namely, the use of desorption electrospray ionization and zero-volt paperspray ionization to detect trace molecules in or on human skin.
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Affiliation(s)
| | - Keishi Kihara
- Shiseido Global Innovation Center, Shiseido Co., Ltd
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22
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MALDI (matrix assisted laser desorption ionization) Imaging Mass Spectrometry (IMS) of skin: Aspects of sample preparation. Talanta 2017; 174:325-335. [PMID: 28738588 DOI: 10.1016/j.talanta.2017.06.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 05/15/2017] [Accepted: 06/02/2017] [Indexed: 12/15/2022]
Abstract
MALDI (matrix assisted laser desorption ionization) Imaging Mass Spectrometry (IMS) allows molecular analysis of biological materials making possible the identification and localization of molecules in tissues, and has been applied to address many questions on skin pathophysiology, as well as on studies about drug absorption and metabolism. Sample preparation for MALDI IMS is the most important part of the workflow, comprising specimen collection and preservation, tissue embedding, cryosectioning, washing, and matrix application. These steps must be carefully optimized for specific analytes of interest (lipids, proteins, drugs, etc.), representing a challenge for skin analysis. In this review, critical parameters for MALDI IMS sample preparation of skin samples will be described. In addition, specific applications of MALDI IMS of skin samples will be presented including wound healing, neoplasia, and infection.
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23
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Prentice BM, Chumbley CW, Caprioli RM. Absolute Quantification of Rifampicin by MALDI Imaging Mass Spectrometry Using Multiple TOF/TOF Events in a Single Laser Shot. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:136-144. [PMID: 27655354 PMCID: PMC5177505 DOI: 10.1007/s13361-016-1501-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/31/2016] [Accepted: 09/02/2016] [Indexed: 05/13/2023]
Abstract
Matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI IMS) allows for the visualization of molecular distributions within tissue sections. While providing excellent molecular specificity and spatial information, absolute quantification by MALDI IMS remains challenging. Especially in the low molecular weight region of the spectrum, analysis is complicated by matrix interferences and ionization suppression. Though tandem mass spectrometry (MS/MS) can be used to ensure chemical specificity and improve sensitivity by eliminating chemical noise, typical MALDI MS/MS modalities only scan for a single MS/MS event per laser shot. Herein, we describe TOF/TOF instrumentation that enables multiple fragmentation events to be performed in a single laser shot, allowing the intensity of the analyte to be referenced to the intensity of the internal standard in each laser shot while maintaining the benefits of MS/MS. This approach is illustrated by the quantitative analyses of rifampicin (RIF), an antibiotic used to treat tuberculosis, in pooled human plasma using rifapentine (RPT) as an internal standard. The results show greater than 4-fold improvements in relative standard deviation as well as improved coefficients of determination (R2) and accuracy (>93% quality controls, <9% relative errors). This technology is used as an imaging modality to measure absolute RIF concentrations in liver tissue from an animal dosed in vivo. Each microspot in the quantitative image measures the local RIF concentration in the tissue section, providing absolute pixel-to-pixel quantification from different tissue microenvironments. The average concentration determined by IMS is in agreement with the concentration determined by HPLC-MS/MS, showing a percent difference of 10.6%. Graphical Abstract ᅟ.
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Affiliation(s)
- Boone M Prentice
- Department of Biochemistry, Vanderbilt University, 9160 MRB III, Nashville, TN, 37232, USA
- Mass Spectrometry Research Center, Nashville, TN, 37232, USA
| | - Chad W Chumbley
- Department of Chemistry, Nashville, TN, 37232, USA
- Mass Spectrometry Research Center, Nashville, TN, 37232, USA
| | - Richard M Caprioli
- Department of Biochemistry, Vanderbilt University, 9160 MRB III, Nashville, TN, 37232, USA.
- Department of Chemistry, Nashville, TN, 37232, USA.
- Departments of Pharmacology and Medicine, Nashville, TN, 37232, USA.
- Mass Spectrometry Research Center, Nashville, TN, 37232, USA.
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24
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Rzagalinski I, Volmer DA. Quantification of low molecular weight compounds by MALDI imaging mass spectrometry - A tutorial review. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2016; 1865:726-739. [PMID: 28012871 DOI: 10.1016/j.bbapap.2016.12.011] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 12/01/2016] [Accepted: 12/19/2016] [Indexed: 10/20/2022]
Abstract
Matrix-assisted laser desorption/ionization (MALDI)-mass spectrometry imaging (MSI) permits label-free in situ analysis of chemical compounds directly from the surface of two-dimensional biological tissue slices. It links qualitative molecular information of compounds to their spatial coordinates and distribution within the investigated tissue. MALDI-MSI can also provide the quantitative amounts of target compounds in the tissue, if proper calibration techniques are performed. Obviously, as the target molecules are embedded within the biological tissue environment and analysis must be performed at their precise locations, there is no possibility for extensive sample clean-up routines or chromatographic separations as usually performed with homogenized biological materials; ion suppression phenomena therefore become a critical side effect of MALDI-MSI. Absolute quantification by MALDI-MSI should provide an accurate value of the concentration/amount of the compound of interest in relatively small, well-defined region of interest of the examined tissue, ideally in a single pixel. This goal is extremely challenging and will not only depend on the technical possibilities and limitations of the MSI instrument hardware, but equally on the chosen calibration/standardization strategy. These strategies are the main focus of this article and are discussed and contrasted in detail in this tutorial review. This article is part of a Special Issue entitled: MALDI Imaging, edited by Dr. Corinna Henkel and Prof. Peter Hoffmann.
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Affiliation(s)
- Ignacy Rzagalinski
- Institute of Bioanalytical Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Dietrich A Volmer
- Institute of Bioanalytical Chemistry, Saarland University, 66123 Saarbrücken, Germany.
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25
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Spatial Quantitation of Drugs in tissues using Liquid Extraction Surface Analysis Mass Spectrometry Imaging. Sci Rep 2016; 6:37648. [PMID: 27883030 PMCID: PMC5121636 DOI: 10.1038/srep37648] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 10/28/2016] [Indexed: 12/17/2022] Open
Abstract
Liquid extraction surface analysis mass spectrometry imaging (LESA-MSI) has been shown to be an effective tissue profiling and imaging technique, producing robust and reliable qualitative distribution images of an analyte or analytes in tissue sections. Here, we expand the use of LESA-MSI beyond qualitative analysis to a quantitative analytical technique by employing a mimetic tissue model previously shown to be applicable for MALDI-MSI quantitation. Liver homogenate was used to generate a viable and molecularly relevant control matrix for spiked drug standards which can be frozen, sectioned and subsequently analyzed for the generation of calibration curves to quantify unknown tissue section samples. The effects of extraction solvent composition, tissue thickness and solvent/tissue contact time were explored prior to any quantitative studies in order to optimize the LESA-MSI method across several different chemical entities. The use of a internal standard to normalize regional differences in ionization response across tissue sections was also investigated. Data are presented comparing quantitative results generated by LESA-MSI to LC-MS/MS. Subsequent analysis of adjacent tissue sections using DESI-MSI is also reported.
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26
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Chen X, Hatsis P, Judge J, Argikar UA, Ren X, Sarber J, Mansfield K, Liang G, Amaral A, Catoire A, Bentley A, Ramos L, Moench P, Hintermann S, Carcache D, Glick J, Flarakos J. Compound Property Optimization in Drug Discovery Using Quantitative Surface Sampling Micro Liquid Chromatography with Tandem Mass Spectrometry. Anal Chem 2016; 88:11813-11820. [PMID: 27797491 DOI: 10.1021/acs.analchem.6b03449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Surface sampling micro liquid chromatography tandem mass spectrometry (SSμLC-MS/MS) was explored as a quantitative tissue distribution technique for probing compound properties in drug discovery. A method was developed for creating standard curves using surrogate tissue sections from blank tissue homogenate spiked with compounds. The resulting standard curves showed good linearity and high sensitivity. The accuracy and precision of standards met acceptance criteria of ±30%. A new approach was proposed based on an experimental and mathematical method for tissue extraction efficiency evaluation by means of consecutively sampling a location on tissue twice by SSμLC-MS/MS. The observed extraction efficiency ranged from 69% to 82% with acceptable variation for the test compounds. Good agreement in extraction efficiency was observed between surrogate tissue sections and incurred tissue sections. This method was successfully applied to two case studies in which tissue distribution was instrumental in advancing project teams' understanding of compound properties.
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Affiliation(s)
| | - Panos Hatsis
- Drug Metabolism & Pharmacokinetics, Novartis Institutes for BioMedical Research, Inc. 1 Health Plaza, East Hanover, New Jersey 07936 United States
| | | | | | - Xiaojun Ren
- Drug Metabolism & Pharmacokinetics, Novartis Institutes for BioMedical Research, Inc. 1 Health Plaza, East Hanover, New Jersey 07936 United States
| | | | | | | | | | - Alexandre Catoire
- Drug Metabolism & Pharmacokinetics, Novartis Institutes for BioMedical Research, Inc. 1 Health Plaza, East Hanover, New Jersey 07936 United States
| | - Adam Bentley
- Drug Metabolism & Pharmacokinetics, Novartis Institutes for BioMedical Research, Inc. 1 Health Plaza, East Hanover, New Jersey 07936 United States
| | - Luis Ramos
- Drug Metabolism & Pharmacokinetics, Novartis Institutes for BioMedical Research, Inc. 1 Health Plaza, East Hanover, New Jersey 07936 United States
| | - Paul Moench
- Drug Metabolism & Pharmacokinetics, Novartis Institutes for BioMedical Research, Inc. 1 Health Plaza, East Hanover, New Jersey 07936 United States
| | - Samuel Hintermann
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Inc. 4056 Basel, Switzerland
| | - David Carcache
- Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Inc. 4056 Basel, Switzerland
| | - Jim Glick
- Drug Metabolism & Pharmacokinetics, Novartis Institutes for BioMedical Research, Inc. 1 Health Plaza, East Hanover, New Jersey 07936 United States
| | - Jimmy Flarakos
- Drug Metabolism & Pharmacokinetics, Novartis Institutes for BioMedical Research, Inc. 1 Health Plaza, East Hanover, New Jersey 07936 United States
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27
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Trim PJ, Snel MF. Small molecule MALDI MS imaging: Current technologies and future challenges. Methods 2016; 104:127-41. [DOI: 10.1016/j.ymeth.2016.01.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 01/19/2016] [Accepted: 01/21/2016] [Indexed: 11/25/2022] Open
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28
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Kijima S, Todo H, Matsumoto Y, Masaki R, Kadhum WR, Sugibayashi K. A useful technique using imaging mass spectrometry for detecting the skin distribution of topically applied lidocaine. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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29
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Chumbley CW, Reyzer ML, Allen JL, Marriner GA, Via LE, Barry CE, Caprioli RM. Absolute Quantitative MALDI Imaging Mass Spectrometry: A Case of Rifampicin in Liver Tissues. Anal Chem 2016; 88:2392-8. [PMID: 26814665 DOI: 10.1021/acs.analchem.5b04409] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry (IMS) elucidates molecular distributions in thin tissue sections. Absolute pixel-to-pixel quantitation has remained a challenge, primarily lacking validation of the appropriate analytical methods. In the present work, isotopically labeled internal standards are applied to tissue sections to maximize quantitative reproducibility and yield accurate quantitative results. We have developed a tissue model for rifampicin (RIF), an antibiotic used to treat tuberculosis, and have tested different methods of applying an isotopically labeled internal standard for MALDI IMS analysis. The application of the standard and subsequently the matrix onto tissue sections resulted in quantitation that was not statistically significantly different from results obtained using HPLC-MS/MS of tissue extracts. Quantitative IMS experiments were performed on liver tissue from an animal dosed in vivo. Each microspot in the quantitative images measures the local concentration of RIF in the thin tissue section. Lower concentrations were detected from the blood vessels and around the portal tracts. The quantitative values obtained from these measurements were comparable (>90% similarity) to HPLC-MS/MS results obtained from extracts of the same tissue.
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Affiliation(s)
- Chad W Chumbley
- Department of Chemistry, Vanderbilt University , Nashville, Tennessee 37235, United States
| | - Michelle L Reyzer
- Mass Spectrometry Research Center, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Jamie L Allen
- Mass Spectrometry Research Center, Vanderbilt University , Nashville, Tennessee 37240, United States
| | - Gwendolyn A Marriner
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Laura E Via
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland 20892, United States.,Institute of Infectious Disease and Molecular Medicine, Department of Clinical Laboratory Sciences, University of Cape Town , Cape Town, South Africa
| | - Clifton E Barry
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, Maryland 20892, United States.,Institute of Infectious Disease and Molecular Medicine, Department of Clinical Laboratory Sciences, University of Cape Town , Cape Town, South Africa
| | - Richard M Caprioli
- Department of Chemistry, Vanderbilt University , Nashville, Tennessee 37235, United States.,Mass Spectrometry Research Center, Vanderbilt University , Nashville, Tennessee 37240, United States.,Departments of Pharmacology, Biochemistry, and Medicine, Vanderbilt University , 465 21st Avenue South, Medical Research Building III, Nashville, Tennessee 37240, United States
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30
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Dutkiewicz EP, Chiu HY, Urban PL. Micropatch-arrayed pads for non-invasive spatial and temporal profiling of topical drugs on skin surface. JOURNAL OF MASS SPECTROMETRY : JMS 2015; 50:1321-1325. [PMID: 26505778 DOI: 10.1002/jms.3702] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/30/2015] [Accepted: 09/01/2015] [Indexed: 06/05/2023]
Abstract
Micropatch-arrayed pads (MAPAs) are presented as a facile and sensitive sampling method for spatial profiling of topical agents adsorbed on the surface of skin. MAPAs are 28 × 28 mm sized pieces of polytetrafluoroethylene containing plurality of cavities filled with agarose hydrogel. They are affixed onto skin for 10 min with the purpose to collect drugs applied topically. Polar compounds are absorbed by the hydrogel micropatches. The probes are subsequently scanned by an automated nanospray desorption electrospray ionization mass spectrometry system operated in the tapping dual-polarity mode. When the liquid junction gets into contact with every micropatch, polar compounds absorbed in the hydrogel matrix are desorbed and transferred to the ion source. A 3D-printed interface prevents evaporation of hydrogel micropatches assuring good reproducibility and sensitivity. MAPAs have been applied to follow dispersion of topical drugs applied to human skin in vivo and to porcine skin ex vivo, in the form of self-adhesive patches. Spatiotemporal characteristics of the drug dispersion process have been revealed using this non-invasive test. Differences between drug dispersion in vivo and ex vivo could be observed. We envision that MAPAs can be used to investigate spatiotemporal kinetics of various topical agents utilized in medical treatment.
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Affiliation(s)
- Ewelina P Dutkiewicz
- Department of Applied Chemistry, National Chiao Tung University, 1001 University Rd., Hsinchu, 300, Taiwan
| | - Hsien-Yi Chiu
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, 1 Jen-Ai Rd., Taipei, 100, Taiwan
- Department of Dermatology, National Taiwan University Hospital Hsinchu Branch, 25 Jingguo Rd., Hsinchu, 300, Taiwan
- Department of Dermatology, National Taiwan University Hospital, 7 Chung San South Rd., Taipei, 100, Taiwan
- College of Medicine, National Taiwan University, 1 Jen-Ai Rd., Taipei, 100, Taiwan
| | - Pawel L Urban
- Department of Applied Chemistry, National Chiao Tung University, 1001 University Rd., Hsinchu, 300, Taiwan
- Institute of Molecular Science, National Chiao Tung University, 1001 University Rd., Hsinchu, 300, Taiwan
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31
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Swales JG, Tucker JW, Spreadborough MJ, Iverson SL, Clench MR, Webborn PJH, Goodwin RJA. Mapping drug distribution in brain tissue using liquid extraction surface analysis mass spectrometry imaging. Anal Chem 2015; 87:10146-52. [PMID: 26350423 DOI: 10.1021/acs.analchem.5b02998] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Liquid extraction surface analysis mass spectrometry (LESA-MS) is a surface sampling technique that incorporates liquid extraction from the surface of tissue sections with nanoelectrospray mass spectrometry. Traditional tissue analysis techniques usually require homogenization of the sample prior to analysis via high-performance liquid chromatography mass spectrometry (HPLC-MS), but an intrinsic weakness of this is a loss of all spatial information and the inability of the technique to distinguish between actual tissue penetration and response caused by residual blood contamination. LESA-MS, in contrast, has the ability to spatially resolve drug distributions and has historically been used to profile discrete spots on the surface of tissue sections. Here, we use the technique as a mass spectrometry imaging (MSI) tool, extracting points at 1 mm spatial resolution across tissue sections to build an image of xenobiotic and endogenous compound distribution to assess drug blood-brain barrier penetration into brain tissue. A selection of penetrant and "nonpenetrant" drugs were dosed to rats via oral and intravenous administration. Whole brains were snap-frozen at necropsy and were subsequently sectioned prior to analysis by matrix-assisted laser desorption ionization mass spectrometry imaging (MALDI-MSI) and LESA-MSI. MALDI-MSI, as expected, was shown to effectively map the distribution of brain penetrative compounds but lacked sufficient sensitivity when compounds were marginally penetrative. LESA-MSI was used to effectively map the distribution of these poorly penetrative compounds, highlighting its value as a complementary technique to MALDI-MSI. The technique also showed benefits when compared to traditional homogenization, particularly for drugs that were considered nonpenetrant by homogenization but were shown to have a measurable penetration using LESA-MSI.
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Affiliation(s)
- John G Swales
- Drug Safety and Metabolism, AstraZeneca R&D , Cambridge Science Park, Milton Road, Cambridge CB4 0WG, U.K.,Biomedical Research Centre, Sheffield Hallam University , Howard Street, Sheffield, South Yorkshire S1 1WB, U.K
| | - James W Tucker
- Drug Safety and Metabolism, AstraZeneca R&D , Cambridge Science Park, Milton Road, Cambridge CB4 0WG, U.K
| | - Michael J Spreadborough
- Drug Safety and Metabolism, AstraZeneca R&D , Cambridge Science Park, Milton Road, Cambridge CB4 0WG, U.K
| | - Suzanne L Iverson
- Drug Safety and Metabolism, AstraZeneca R&D , Cambridge Science Park, Milton Road, Cambridge CB4 0WG, U.K
| | - Malcolm R Clench
- Biomedical Research Centre, Sheffield Hallam University , Howard Street, Sheffield, South Yorkshire S1 1WB, U.K
| | - Peter J H Webborn
- Drug Safety and Metabolism, AstraZeneca R&D , Cambridge Science Park, Milton Road, Cambridge CB4 0WG, U.K
| | - Richard J A Goodwin
- Drug Safety and Metabolism, AstraZeneca R&D , Cambridge Science Park, Milton Road, Cambridge CB4 0WG, U.K
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32
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Abstract
Pharmacodynamics and toxicodynamics are the study of the biochemical and physiological effects of therapeutic agents and toxicants and their mechanisms of action. MALDI-MS imaging offers great potential for the study of pharmaco/toxicodynamic responses in tissue owing is its ability to study multiple biomarkers simultaneously in a label-free manner. Here, existing examples of such studies examining anticancer drugs and topically applied treatments are described. Examination of the literature shows that the use of MS imaging in pharmaco/toxicodynamic studies is in fact quite low. The reasons for this are discussed and potential developments in the methodology that might lead to its further use are described.
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33
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Mitchell CA, Long H, Donaldson M, Francese S, Clench MR. Lipid changes within the epidermis of living skin equivalents observed across a time-course by MALDI-MS imaging and profiling. Lipids Health Dis 2015; 14:84. [PMID: 26243140 PMCID: PMC4525729 DOI: 10.1186/s12944-015-0089-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/27/2015] [Indexed: 11/10/2022] Open
Abstract
Background Mass spectrometry imaging (MSI) is a powerful tool for the study of intact tissue sections. Here, its application to the study of the distribution of lipids in sections of reconstructed living skin equivalents during their development and maturation is described. Methods Living skin equivalent (LSE) samples were obtained at 14 days development, re-suspended in maintenance medium and incubated for 24 h after delivery. The medium was then changed, the LSE re-incubated and samples taken at 4, 6 and 24 h time points. Mass spectra and mass spectral images were recorded from 12 μm sections of the LSE taken at each time point for comparison using matrix assisted laser desorption ionisation mass spectrometry. Results A large number of lipid species were identified in the LSE via accurate mass-measurement MS and MSMS experiments carried out directly on the tissue sections. MS images acquired at a spatial resolution of 50 μm × 50 μm showed the distribution of identified lipids within the developing LSE and changes in their distribution with time. In particular development of an epidermal layer was observable as a compaction of the distribution of phosphatidylcholine species. Conclusions MSI can be used to study changes in lipid composition in LSE. Determination of the changes in lipid distribution during the maturation of the LSE will assist in the identification of treatment responses in future investigations. Electronic supplementary material The online version of this article (doi:10.1186/s12944-015-0089-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christopher A Mitchell
- Biomedical Research Centre, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK.
| | - Heather Long
- Stiefel A GSK Company, GlaxoSmithKline, Stockley Park West, Uxbridge, Middlesex, UB1 1BT, UK.
| | - Michael Donaldson
- Stiefel A GSK Company, GlaxoSmithKline, Stockley Park West, Uxbridge, Middlesex, UB1 1BT, UK.
| | - Simona Francese
- Biomedical Research Centre, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK.
| | - Malcolm R Clench
- Biomedical Research Centre, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK.
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34
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Abstract
The study of a drug's dermal penetration profile provides important pharmaceutical data for the rational development of topical and transdermal delivery systems because the skin is a broadly used delivery route for local and systemic drugs and a potential route for gene therapy and vaccines. Monitoring drug penetration across the skin and quantifying its levels in different skin layers have been constant challenges due to the detection limitations of the available techniques, as well as the inherent interference in this tissue. This review explores and discusses several bionalytical methods that are indispensable tools to study drugs across the skin. In addressing the main topic, we structure the review highlighting the skin as an important route of drug administration and its structure, skin membrane models most used and its properties, in vitro and in vivo assays most used in the study of drug delivery to the skin, the techniques for processing the skin for subsequent analysis by bioanalytical methods that have a theoretical and practical approach showing its applicability, limitations and also including examples of its use. This review has a comprehensive approach in order to help researchers design their experiments and update the applicability and advances in this area of expertise.
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35
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Glaros TG, Blancett CD, Bell TM, Natesan M, Ulrich RG. Serum biomarkers of Burkholderia mallei infection elucidated by proteomic imaging of skin and lung abscesses. Clin Proteomics 2015; 12:7. [PMID: 26034464 PMCID: PMC4450996 DOI: 10.1186/s12014-015-9079-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 02/19/2015] [Indexed: 12/12/2022] Open
Abstract
Background The bacterium Burkholderia mallei is the etiological agent of glanders, a highly contagious, often fatal zoonotic infectious disease that is also a biodefense concern. Clinical laboratory assays that analyze blood or other biological fluids are the highest priority because these specimens can be collected with minimal risk to the patient. However, progress in developing sensitive assays for monitoring B. mallei infection is hampered by a shortage of useful biomarkers. Results Reasoning that there should be a strong correlation between the proteomes of infected tissues and circulating serum, we employed imaging mass spectrometry (IMS) of thin-sectioned tissues from Chlorocebus aethiops (African green) monkeys infected with B. mallei to localize host and pathogen proteins that were associated with abscesses. Using laser-capture microdissection of specific regions identified by IMS and histology within the tissue sections, a more extensive proteomic analysis was performed by a technique that combined the physical separation capabilities of liquid chromatography (LC) with the sensitive mass analysis capabilities of mass spectrometry (LC-MS/MS). By examining standard formalin-fixed, paraffin-embedded tissue sections, this strategy resulted in the identification of several proteins that were associated with lung and skin abscesses, including the host protein calprotectin and the pathogen protein GroEL. Elevated levels of calprotectin detected by ELISA and antibody responses to GroEL, measured by a microarray of the bacterial proteome, were subsequently detected in the sera of C. aethiops, Macaca mulatta, and Macaca fascicularis primates infected with B. mallei. Conclusions Our results demonstrate that a combination of multidimensional MS analysis of traditional histology specimens with high-content protein microarrays can be used to discover lead pairs of host-pathogen biomarkers of infection that are identifiable in biological fluids. Electronic supplementary material The online version of this article (doi:10.1186/s12014-015-9079-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Trevor G Glaros
- Molecular and Translational Sciences, USAMRIID, Frederick, 21702 MD USA
| | - Candace D Blancett
- Pathology, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, 21702 MD USA
| | - Todd M Bell
- Pathology, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, 21702 MD USA
| | - Mohan Natesan
- Molecular and Translational Sciences, USAMRIID, Frederick, 21702 MD USA
| | - Robert G Ulrich
- Molecular and Translational Sciences, USAMRIID, Frederick, 21702 MD USA
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36
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Tata A, Perez CJ, Ore MO, Lostun D, Passas A, Morin S, Ifa DR. Evaluation of imprint DESI-MS substrates for the analysis of fungal metabolites. RSC Adv 2015. [DOI: 10.1039/c5ra12805f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Optimized in situ screening, characterization and imaging of fungal metabolites by imprint DESI-MS.
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Affiliation(s)
| | | | | | | | | | - Sylvie Morin
- Department of Chemistry
- York University
- Toronto
- Canada
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37
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Abstract
Desorption electrospray ionization (DESI) allows the direct analysis of ordinary objects or preprocessed samples under ambient conditions. Among other applications, DESI is used to identify and to record spatial distributions of small molecules in situ, sliced or imprinted biological tissue. Manipulation of the chemistry accompanying ambient analysis ionization can be used to optimize chemical analysis, including molecular imprinting. Images are obtained by continuously moving the sample relative to the DESI sprayer and the inlet of the mass spectrometer. The acquisition time depends on the size of the surface to be analyzed and on the desired resolution.
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Affiliation(s)
- Elaine C Cabral
- Department of Chemistry, Faculty of Science, Centre for Research in Mass Spectrometry (CRMS), York University, 256 Chemistry Building, 4700 Keele Street, Toronto, ON, Canada, M3J 1P3
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38
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Barry JA, Robichaud G, Bokhart MT, Thompson C, Sykes C, Kashuba AD, Muddiman DC. Mapping antiretroviral drugs in tissue by IR-MALDESI MSI coupled to the Q Exactive and comparison with LC-MS/MS SRM assay. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:2038-47. [PMID: 24744212 PMCID: PMC4201889 DOI: 10.1007/s13361-014-0884-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 03/05/2014] [Accepted: 03/08/2014] [Indexed: 05/09/2023]
Abstract
This work describes the coupling of the IR-MALDESI imaging source with the Q Exactive mass spectrometer. IR-MALDESI MSI was used to elucidate the spatial distribution of several HIV drugs in cervical tissues that had been incubated in either a low or high concentration. Serial sections of those analyzed by IR-MALDESI MSI were homogenized and analyzed by LC-MS/MS to quantify the amount of each drug present in the tissue. By comparing the two techniques, an agreement between the average intensities from the imaging experiment and the absolute quantities for each drug was observed. This correlation between these two techniques serves as a prerequisite to quantitative IR-MALDESI MSI. In addition, a targeted MS(2) imaging experiment was also conducted to demonstrate the capabilities of the Q Exactive and to highlight the added selectivity that can be obtained with SRM or MRM imaging experiments.
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Affiliation(s)
- Jeremy A. Barry
- W.M. Keck FT Mass Spectrometry Laboratory, Department of Chemistry, North Carolina State University, Raleigh, North Carolina
| | - Guillaume Robichaud
- W.M. Keck FT Mass Spectrometry Laboratory, Department of Chemistry, North Carolina State University, Raleigh, North Carolina
| | - Mark T. Bokhart
- W.M. Keck FT Mass Spectrometry Laboratory, Department of Chemistry, North Carolina State University, Raleigh, North Carolina
| | - Corbin Thompson
- Eshelman School of Pharmacy, The University of North Carolina, Chapel Hill, North Carolina
| | - Craig Sykes
- Eshelman School of Pharmacy, The University of North Carolina, Chapel Hill, North Carolina
| | - Angela D.M. Kashuba
- Eshelman School of Pharmacy, The University of North Carolina, Chapel Hill, North Carolina
| | - David C. Muddiman
- W.M. Keck FT Mass Spectrometry Laboratory, Department of Chemistry, North Carolina State University, Raleigh, North Carolina
- Author for Correspondence: David C. Muddiman, Ph.D., W.M. Keck FT Mass Spectrometry Laboratory, Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, Phone: 919-513-0084, Fax: 919-513-7993,
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39
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Quantitative mass spectrometry imaging of emtricitabine in cervical tissue model using infrared matrix-assisted laser desorption electrospray ionization. Anal Bioanal Chem 2014; 407:2073-84. [PMID: 25318460 DOI: 10.1007/s00216-014-8220-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 09/23/2014] [Accepted: 09/25/2014] [Indexed: 10/24/2022]
Abstract
A quantitative mass spectrometry imaging (QMSI) technique using infrared matrix-assisted laser desorption electrospray ionization (IR-MALDESI) is demonstrated for the antiretroviral (ARV) drug emtricitabine in incubated human cervical tissue. Method development of the QMSI technique leads to a gain in sensitivity and removal of interferences for several ARV drugs. Analyte response was significantly improved by a detailed evaluation of several cationization agents. Increased sensitivity and removal of an isobaric interference was demonstrated with sodium chloride in the electrospray solvent. Voxel-to-voxel variability was improved for the MSI experiments by normalizing analyte abundance to a uniformly applied compound with similar characteristics to the drug of interest. Finally, emtricitabine was quantified in tissue with a calibration curve generated from the stable isotope-labeled analog of emtricitabine followed by cross-validation using liquid chromatography tandem mass spectrometry (LC-MS/MS). The quantitative IR-MALDESI analysis proved to be reproducible with an emtricitabine concentration of 17.2 ± 1.8 μg/gtissue. This amount corresponds to the detection of 7 fmol/voxel in the IR-MALDESI QMSI experiment. Adjacent tissue slices were analyzed using LC-MS/MS which resulted in an emtricitabine concentration of 28.4 ± 2.8 μg/gtissue.
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40
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Abstract
To fully understand the drug mechanism of action of new chemical entities, pharmacologists need to acquire confident and precise data in pharmacokinetics and in pharmacodynamics and build strong pharmacokinetic/pharmacodynamic relationships. Target engagement in evaluating new chemical entities provides the basis for treatment efficacy. Classical technologies are sometimes limited or inefficient to provide these precise data; however, label-free MS imaging technology is able to provide these molecular features, spatial distributions, quantification and metabolomics data. Important considerations for imaging biological sections are described. Various applications in pharmacology are presented across different therapeutic areas, where MS imaging answers crucial drug discovery and preclinical development needs.
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41
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Kim SH, Shrestha A, Hoang NH, Huong NL, Park JW. Ultra-Performance Liquid Chromatography with Electrospray Ionization Tandem Mass Spectrometry for the Determination of Ketoconazole in Anti-Dandruff Shampoo. ANAL LETT 2014. [DOI: 10.1080/00032719.2013.874013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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Eberlin LS, Mulcahy JV, Tzabazis A, Zhang J, Liu H, Logan MM, Roberts HJ, Lee GK, Yeomans DC, Du Bois J, Zare RN. Visualizing dermal permeation of sodium channel modulators by mass spectrometric imaging. J Am Chem Soc 2014; 136:6401-5. [PMID: 24708172 PMCID: PMC4017602 DOI: 10.1021/ja501635u] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
Determining
permeability of a given compound through human skin
is a principal challenge owing to the highly complex nature of dermal
tissue. We describe the application of an ambient mass spectrometry
imaging method for visualizing skin penetration of sodium channel
modulators, including novel synthetic analogs of natural neurotoxic
alkaloids, topically applied ex vivo to human skin. Our simple and label-free approach enables
successful mapping of the transverse and lateral diffusion of small
molecules having different physicochemical properties without the
need for extensive sample preparation.
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Affiliation(s)
- Livia S Eberlin
- Department of Chemistry, Stanford University , Stanford, California 94305-5080, United States
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43
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Sjövall P, Greve TM, Clausen SK, Moller K, Eirefelt S, Johansson B, Nielsen KT. Imaging of distribution of topically applied drug molecules in mouse skin by combination of time-of-flight secondary ion mass spectrometry and scanning electron microscopy. Anal Chem 2014; 86:3443-52. [PMID: 24568123 DOI: 10.1021/ac403924w] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the development of topical drugs intended for local effects in the skin, one of the major challenges is to achieve drug penetration through the external barrier of the skin, stratum corneum, and secure exposure to the viable skin layers. Mass spectrometric imaging offers an opportunity to study drug penetration in a variety of skin models by mapping the spatial distribution in different skin layers after topical application of the drug. In this study, we used time-of-flight secondary ion mass spectrometry (TOF-SIMS) and scanning electron microscopy (SEM) to image the distribution of three drug molecules in skin tissue cross sections of inflamed mouse ear. The three compounds, roflumilast, tofacitinib, and ruxolitinib, were topically administered to the mouse ears, which were subsequently cryosectioned and thawed for the analyses. The results reveal that the combination of TOF-SIMS and SEM was beneficial for interpretation of drug distribution. SEM identified the different skin layers, while spatial distributions of all three compounds could be visualized by TOF-SIMS, showing that the drug was primarily distributed into, or on the top of, the stratum corneum. Imaging of endogenous skin components like cholesterol, phospholipids, ceramides, and free fatty acids showed distributions in good agreement with the literature. One limitation of the TOF-SIMS method is sensitivity, typically allowing for analysis in the millimolar range rather than the pharmacologically relevant micromolar range. However, the data presented demonstrate the potential of the technique for studying the penetration of drugs with different physicochemical properties in skin.
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Affiliation(s)
- Peter Sjövall
- SP Technical Research Institute of Sweden , Post Office Box 857, SE-50115 Borås, Sweden
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44
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Chen G, Pramanik BN. LC-MS for protein characterization: current capabilities and future trends. Expert Rev Proteomics 2014; 5:435-44. [DOI: 10.1586/14789450.5.3.435] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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45
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Roverso M, Lapolla A, Cosma C, Seraglia R, Galvan E, Visentin S, Cosmi E, Desoye G, Traldi P. Some preliminary matrix-assisted laser desorption/ionization imaging experiments on maternal and fetal sides of human placenta. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2014; 20:261-269. [PMID: 24892297 DOI: 10.1255/ejms.1274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An investigation on placenta proteins has been carried out by matrix-assisted laser desorption/ionization (MALDI) ion imaging (II) experiments. This was performed by laser irradiation of the maternal and fetal sides of placenta tissue. To investigate the possible changes in protein profile due to the development of gestational diabetes mellitus (GDM), five placenta samples from GDM patients and five placenta samples from healthy pregnant women were analyzed. An extensive optimization of the tissue slice treatment and of the matrix deposition method was performed. As already observed in MALDI spectra of placenta homogenates, and also in the MALDI-II condition, the most abundant peaks are due to hemoglobin α chain, hemoglobin β chain and hemoglobin γ chain. However, higher molecular weight protein species were detected in the m/z range 20,000-47,000. The species at m/z 30335, m/z 31235 and m/z 32000 show some differences in their abundance in the maternal and fetal sides of the tissue in both classes of subjects under investigation. Comparison with the literature data suggest that they can result from the presence of mitochondrial proteins at tissue level.
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Affiliation(s)
- Marco Roverso
- Dipartimento di Medicina, Università degli Studi di Padova, Via Giustiniani 2, I-35100 Padova, Italy
| | - Annunziata Lapolla
- Dipartimento di Medicina, Università degli Studi di Padova, Via Giustiniani 2, I-35100 Padova, Italy
| | - Chiara Cosma
- Dipartimento di Medicina, Università degli Studi di Padova, Via Giustiniani 2, I-35100 Padova, Italy
| | | | - Elisa Galvan
- Dipartimento di Salute della Donna e del Bambino, Università di Padova, Via Giustiniani2, I-35100 Padova, Italy
| | - Silvia Visentin
- Dipartimento di Salute della Donna e del Bambino, Università di Padova, Via Giustiniani2, I-35100 Padova, Italy
| | - Eric Cosmi
- Dipartimento di Salute della Donna e del Bambino, Università di Padova, Via Giustiniani2, I-35100 Padova, Italy
| | - Gernot Desoye
- Department of Obstetrics and Gynecology, Medical University of Graz, Austria
| | - Pietro Traldi
- IENI CNR, Corso Stati Uniti 4, I-35100 Padova, Italy.
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46
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Škrášková K, Heeren RM. A review of complementary separation methods and matrix assisted laser desorption ionization-mass spectrometry imaging: Lowering sample complexity. J Chromatogr A 2013; 1319:1-13. [DOI: 10.1016/j.chroma.2013.10.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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47
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Shalhoub J, Sikkel MB, Davies KJ, Vorkas PA, Want EJ, Davies AH. Systems Biology of Human Atherosclerosis. Vasc Endovascular Surg 2013; 48:5-17. [DOI: 10.1177/1538574413510628] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Systems biology describes a holistic and integrative approach to understand physiology and pathology. The “omic” disciplines include genomics, transcriptomics, proteomics, and metabolic profiling (metabonomics and metabolomics). By adopting a stance, which is opposing (yet complimentary) to conventional research techniques, systems biology offers an overview by assessing the “net” biological effect imposed by a disease or nondisease state. There are a number of different organizational levels to be understood, from DNA to protein, metabolites, cells, organs and organisms, even beyond this to an organism’s context. Systems biology relies on the existence of “nodes” and “edges.” Nodes are the constituent part of the system being studied (eg, proteins in the proteome), while the edges are the way these constituents interact. In future, it will be increasingly important to collaborate, collating data from multiple studies to improve data sets, making them freely available and undertaking integrative analyses.
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Affiliation(s)
- Joseph Shalhoub
- Department of Surgery & Cancer, Academic Section of Vascular Surgery, Imperial College London, United Kingdom
| | - Markus B. Sikkel
- Myocardial Function Section, National Heart & Lung Institute, Imperial College London, United Kingdom
| | - Kerry J. Davies
- Department of Surgery & Cancer, Academic Section of Vascular Surgery, Imperial College London, United Kingdom
| | - Panagiotis A. Vorkas
- Department of Surgery & Cancer, Computational & Systems Medicine, Imperial College London, United Kingdom
| | - Elizabeth J. Want
- Department of Surgery & Cancer, Computational & Systems Medicine, Imperial College London, United Kingdom
| | - Alun H. Davies
- Department of Surgery & Cancer, Academic Section of Vascular Surgery, Imperial College London, United Kingdom
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Calligaris D, Norton I, Feldman DR, Ide JL, Dunn IF, Eberlin LS, Cooks RG, Jolesz FA, Golby AJ, Santagata S, Agar NY. Mass spectrometry imaging as a tool for surgical decision-making. JOURNAL OF MASS SPECTROMETRY : JMS 2013; 48:1178-87. [PMID: 24259206 PMCID: PMC3957233 DOI: 10.1002/jms.3295] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 10/03/2013] [Accepted: 10/10/2013] [Indexed: 05/18/2023]
Abstract
Despite significant advances in image-guided therapy, surgeons are still too often left with uncertainty when deciding to remove tissue. This binary decision between removing and leaving tissue during surgery implies that the surgeon should be able to distinguish tumor from healthy tissue. In neurosurgery, current image-guidance approaches such as magnetic resonance imaging (MRI) combined with neuronavigation offer a map as to where the tumor should be, but the only definitive method to characterize the tissue at stake is histopathology. Although extremely valuable information is derived from this gold standard approach, it is limited to very few samples during surgery and is not practically used for the delineation of tumor margins. The development and implementation of faster, comprehensive, and complementary approaches for tissue characterization are required to support surgical decision-making--an incremental and iterative process with tumor removed in multiple and often minute biopsies. The development of atmospheric pressure ionization sources makes it possible to analyze tissue specimens with little to no sample preparation. Here, we highlight the value of desorption electrospray ionization as one of many available approaches for the analysis of surgical tissue. Twelve surgical samples resected from a patient during surgery were analyzed and diagnosed as glioblastoma tumor or necrotic tissue by standard histopathology, and mass spectrometry results were further correlated to histopathology for critical validation of the approach. The use of a robust statistical approach reiterated results from the qualitative detection of potential biomarkers of these tissue types. The correlation of the mass spectrometry and histopathology results to MRI brings significant insight into tumor presentation that could not only serve to guide tumor resection, but that is also worthy of more detailed studies on our understanding of tumor presentation on MRI.
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Affiliation(s)
- David Calligaris
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
| | - Isaiah Norton
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
| | - Daniel R. Feldman
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115
| | - Jennifer L. Ide
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
| | - Ian F. Dunn
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
| | - Livia S. Eberlin
- Department of Chemistry and Center for Analytical Instrumentation Development, Purdue University, West Lafayette, IN 47907
| | - R. Graham Cooks
- Department of Chemistry and Center for Analytical Instrumentation Development, Purdue University, West Lafayette, IN 47907
| | - Ferenc A. Jolesz
- Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
| | - Alexandra J. Golby
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
- Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
| | - Sandro Santagata
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115
| | - Nathalie Y. Agar
- Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
- Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
- Department of Chemistry and Center for Analytical Instrumentation Development, Purdue University, West Lafayette, IN 47907
- Corresponding author: Dr. Nathalie Y.R. Agar Departments of Neurosurgery and Radiology, Brigham and Women’s Hospital, and Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115. , +1617/525-7374
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49
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Toue S, Sugiura Y, Kubo A, Ohmura M, Karakawa S, Mizukoshi T, Yoneda J, Miyano H, Noguchi Y, Kobayashi T, Kabe Y, Suematsu M. Microscopic imaging mass spectrometry assisted by on-tissue chemical derivatization for visualizing multiple amino acids in human colon cancer xenografts. Proteomics 2013; 14:810-9. [PMID: 23818158 DOI: 10.1002/pmic.201300041] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 03/20/2013] [Accepted: 03/30/2013] [Indexed: 11/09/2022]
Abstract
Imaging MS combined with CE/MS serves as a method to provide semi-quantitative and spatial information of small molecular metabolites in tissue slices. However, not all metabolites including amino acids have fully been visualized, because of low-ionization efficiency in MALDI MS. This study aimed to acquire semi-quantitative spatial information for multiple amino acids in frozen tissue slices. As a derivatization reagent, p-N,N,N-trimethylammonioanilyl N'-hydroxysuccinimidyl carbamate iodide (TAHS) was applied to increase their ionization efficiency and detection sensitivity. Semi-quantitative MALDI-imaging MS allowed us to visualize and quantify free amino acid pools in human colon cancer xenografts using a model of liver metastases in super-immunodeficient NOD/scid/γ(null) mice (NOG mice). Because the m/z values of several TAHS-derivatized amino acids overlap with those of the 2,5-dihydroxybenzoic acid background and other endogenous compounds, we imaged them with tandem MS. The results indicated that regional contents of glutamate, glutamine, glycine, leucine/isoleucine/hydroxyproline, phenylalanine, and alanine were significantly elevated in metastatic tumors versus parenchyma of tumor-bearing livers. On-tissue TAHS derivatization thus serves as a useful method to detect alterations in many amino acid levels in vivo, thereby enabling understanding of the spatial alterations of these metabolites under varied disease conditions including cancer.
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Affiliation(s)
- Sakino Toue
- Department of Biochemistry, School of Medicine, Keio University, Tokyo, Japan; Institute for Innovation, Ajinomoto Co., Inc, Kawasaki, Kanagawa, Japan
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50
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Morosi L, Spinelli P, Zucchetti M, Pretto F, Carrà A, D’Incalci M, Giavazzi R, Davoli E. Determination of paclitaxel distribution in solid tumors by nano-particle assisted laser desorption ionization mass spectrometry imaging. PLoS One 2013; 8:e72532. [PMID: 23991120 PMCID: PMC3753243 DOI: 10.1371/journal.pone.0072532] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 07/10/2013] [Indexed: 11/19/2022] Open
Abstract
A sensitive, simple and reproducible protocol for nanoparticle-assisted laser desorption/ionization mass spectrometry imaging technique is described. The use of commercially available TiO2 nanoparticles abolishes heterogeneous crystallization, matrix background interferences and enhances signal detection, especially in the low mass range. Molecular image normalization was based on internal standard deposition on tissues, allowing direct comparison of drug penetration and distribution between different organs and tissues. The method was applied to analyze the distribution of the anticancer drug paclitaxel, inside normal and neoplastic mouse tissue sections. Spatial resolution was good, with a linear response between different in vivo treatments and molecular imaging intensity using therapeutic drug doses. This technique distinguishes the different intensity of paclitaxel distribution in control organs of mice, such as liver and kidney, in relation to the dose. Animals treated with 30 mg/kg of paclitaxel had half of the concentration of those treated with 60 mg/kg. We investigated the spatial distribution of paclitaxel in human melanoma mouse xenografts, following different dosage schedules and found a more homogeneous drug distribution in tumors of mice given repeated doses (5×8 mg/kg) plus a 60 mg/kg dose than in those assigned only a single 60 mg/kg dose. The protocol can be readily applied to investigate anticancer drug distribution in neoplastic lesions and to develop strategies to optimize and enhance drug penetration through different tumor tissues.
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Affiliation(s)
- Lavinia Morosi
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”, Department of Oncology, Milano, Italy
| | - Pietro Spinelli
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”, Department of Oncology, Milano, Italy
| | - Massimo Zucchetti
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”, Department of Oncology, Milano, Italy
| | - Francesca Pretto
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”, Department of Oncology, Milano, Italy
| | - Andrea Carrà
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”, Department of Environmental Health Sciences, Mass Spectrometry Laboratory, Milano, Italy
| | - Maurizio D’Incalci
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”, Department of Oncology, Milano, Italy
| | - Raffaella Giavazzi
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”, Department of Oncology, Milano, Italy
| | - Enrico Davoli
- IRCCS Istituto di Ricerche Farmacologiche “Mario Negri”, Department of Environmental Health Sciences, Mass Spectrometry Laboratory, Milano, Italy
- * E-mail:
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