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Maghari S, Reimhult E, Ghezellou P, Ghassempour A. Modifying superparamagnetic iron oxide and silica nanoparticles surfaces for efficient (MA)LDI-MS analyses of peptides and proteins. Rapid Commun Mass Spectrom 2022; 36:e9212. [PMID: 34661948 DOI: 10.1002/rcm.9212] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE Surface functionalization is considered to be the foundation for developing nanomaterial applications in matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) analyses. However, the surface properties of nanostructures can influence their interaction with the analyte and consequently the mass data. In the present study, functionalized nanoparticles (NPs) were used for MALDI-MS and laser desorption/ionization mass spectrometry (LDI-MS) experiments in order to evaluate the effect of the surface properties of NPs on tailoring the intensity of mass signals. METHODS Regarding the LDI-MS analyses, the surface of superparamagnetic iron oxide nanoparticles (SPIONs) was coated with nitrosonium tetrafluoroborate, citric acid, nitrodopamine, and gallic acid. Additionally, the SPIONs were applied as a matrix to analyze three small peptides. In the MALDI-MS analyses, silica NPs were selected as co-matrix and functionalized with cysteine, sulfobetaine, and amine alkoxysilanes. Then, the silica NPs were utilized as additives in the MALDI-MS samples of four proteins in a mass range between ~2000 and 60,000 Da. RESULTS The results of LDI-MS analyses demonstrated more than one order enhancement in the signal intensity of analytes based on the amount of electrostatic interaction and laser energy absorption by the surface ligands. However, those of MALDI-MS experiments indicated a significant signal improvement when achieving the colloidal stability of silica NPs in the matrix solution. CONCLUSIONS Based on the results, the surface properties of NPs affected the (MA)LDI-MS analyses indispensably. Finally, the functionalization of SPIONs represented a new model for the future development of NPs with both affinity and enhanced ionization abilities in mass spectrometry.
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Affiliation(s)
- Shokoofeh Maghari
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Erik Reimhult
- Department of Nanobiotechnology, Institute for Biologically Inspired Materials, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Parviz Ghezellou
- Institute of Inorganic and Analytical Chemistry, Justus Liebig University Giessen, Germany
| | - Alireza Ghassempour
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
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2
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Ma W, Li J, Li X, Bai Y, Liu H. Nanostructured Substrates as Matrices for Surface Assisted Laser Desorption/Ionization Mass Spectrometry: A Progress Report from Material Research to Biomedical Applications. Small Methods 2021; 5:e2100762. [PMID: 34927930 DOI: 10.1002/smtd.202100762] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/13/2021] [Indexed: 06/14/2023]
Abstract
Within the past two decades, the escalation of research output in nanotechnology fields has boosted the development of novel nanoparticles and nanostructured substrates for use as matrices in surface assisted laser desorption/ionization mass spectrometry (SALDI-MS). The application of nanomaterials as matrices, rather than organic matrices, offers remarkable characteristics that allow the analysis of small molecules with fewer matrix interfering peaks, and share higher detection sensitivity, specificity, and reproducibility. The technological advancement of SALDI-MS has in turn, propelled the application of the analytical technique in the field of biomedical analysis. In this review, the properties and fabrication methods of nanostructured substrates in SALDI-MS such as metallic-, carbon-, and silicon-based nanostructures, quantum dots, metal-organic frameworks, and covalent-organic frameworks are described. Additionally, the latest progress (most within 5 years) of biomedical applications in small molecule, large biomolecule, and MS imaging analysis including metabolite profiling, drug monitoring, bacteria identification, disease diagnosis, and therapeutic evaluation are demonstrated. Key parameters that govern nanomaterial's SALDI efficiency in biomolecule analysis are also discussed. Finally, perspectives of the future development are given to provide a better advancement and promote practical application in clinical MS.
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Affiliation(s)
- Wen Ma
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Jun Li
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Xianjiang Li
- Division of Metrology in Chemistry, National Institute of Metrology, Beijing, 100029, China
| | - Yu Bai
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Huwei Liu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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3
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Campuzano IDG, Sandoval W. Denaturing and Native Mass Spectrometric Analytics for Biotherapeutic Drug Discovery Research: Historical, Current, and Future Personal Perspectives. J Am Soc Mass Spectrom 2021; 32:1861-1885. [PMID: 33886297 DOI: 10.1021/jasms.1c00036] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Mass spectrometry (MS) plays a key role throughout all stages of drug development and is now as ubiquitous as other analytical techniques such as surface plasmon resonance, nuclear magnetic resonance, and supercritical fluid chromatography, among others. Herein, we aim to discuss the history of MS, both electrospray and matrix-assisted laser desorption ionization, specifically for the analysis of antibodies, evolving through to denaturing and native-MS analysis of newer biologic moieties such as antibody-drug conjugates, multispecific antibodies, and interfering nucleic acid-based therapies. We discuss challenging therapeutic target characterization such as membrane protein receptors. Importantly, we compare and contrast the MS and hyphenated analytical chromatographic methods used to characterize these therapeutic modalities and targets within biopharmaceutical research and highlight the importance of appropriate MS deconvolution software and its essential contribution to project progression. Finally, we describe emerging applications and MS technologies that are still predominantly within either a development or academic stage of use but are poised to have significant impact on future drug development within the biopharmaceutic industry once matured. The views reflected herein are personal and are not meant to be an exhaustive list of all relevant MS performed within biopharmaceutical research but are what we feel have been historically, are currently, and will be in the future the most impactful for the drug development process.
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MESH Headings
- Antibodies, Monoclonal/analysis
- Automation, Laboratory
- Biopharmaceutics/methods
- Chromatography, Liquid
- Drug Discovery/methods
- Drug Industry/history
- History, 20th Century
- History, 21st Century
- Humans
- Immunoconjugates/analysis
- Immunoconjugates/chemistry
- Protein Denaturation
- Protein Processing, Post-Translational
- Proteins/analysis
- Spectrometry, Mass, Electrospray Ionization/history
- Spectrometry, Mass, Electrospray Ionization/instrumentation
- Spectrometry, Mass, Electrospray Ionization/methods
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/history
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/instrumentation
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods
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Affiliation(s)
- Iain D G Campuzano
- Discovery Attribute Sciences, Amgen Research, 1 Amgen Center Drive, Thousand Oaks, California 92130, United States
| | - Wendy Sandoval
- Department of Microchemistry, Proteomics and Lipidomics, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
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4
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Janzen A, Richter KK, Mwebi O, Brown S, Onduso V, Gatwiri F, Ndiema E, Katongo M, Goldstein ST, Douka K, Boivin N. Distinguishing African bovids using Zooarchaeology by Mass Spectrometry (ZooMS): New peptide markers and insights into Iron Age economies in Zambia. PLoS One 2021; 16:e0251061. [PMID: 34003857 PMCID: PMC8130928 DOI: 10.1371/journal.pone.0251061] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 04/20/2021] [Indexed: 11/19/2022] Open
Abstract
Assessing past foodways, subsistence strategies, and environments depends on the accurate identification of animals in the archaeological record. The high rates of fragmentation and often poor preservation of animal bones at many archaeological sites across sub-Saharan Africa have rendered archaeofaunal specimens unidentifiable beyond broad categories, such as “large mammal” or “medium bovid”. Identification of archaeofaunal specimens through Zooarchaeology by Mass Spectrometry (ZooMS), or peptide mass fingerprinting of bone collagen, offers an avenue for identification of morphologically ambiguous or unidentifiable bone fragments from such assemblages. However, application of ZooMS analysis has been hindered by a lack of complete reference peptide markers for African taxa, particularly bovids. Here we present the complete set of confirmed ZooMS peptide markers for members of all African bovid tribes. We also identify two novel peptide markers that can be used to further distinguish between bovid groups. We demonstrate that nearly all African bovid subfamilies are distinguishable using ZooMS methods, and some differences exist between tribes or sub-tribes, as is the case for Bovina (cattle) vs. Bubalina (African buffalo) within the subfamily Bovinae. We use ZooMS analysis to identify specimens from extremely fragmented faunal assemblages from six Late Holocene archaeological sites in Zambia. ZooMS-based identifications reveal greater taxonomic richness than analyses based solely on morphology, and these new identifications illuminate Iron Age subsistence economies c. 2200–500 cal BP. While the Iron Age in Zambia is associated with the transition from hunting and foraging to the development of farming and herding, our results demonstrate the continued reliance on wild bovids among Iron Age communities in central and southwestern Zambia Iron Age and herding focused primarily on cattle. We also outline further potential applications of ZooMS in African archaeology.
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Affiliation(s)
- Anneke Janzen
- Department of Archaeology, Max-Planck Institute for the Science of Human History, Jena, Germany
- Department of Anthropology, University of Tennessee, Knoxville, Tennessee, United States of America
- * E-mail:
| | - Kristine Korzow Richter
- Department of Archaeology, Max-Planck Institute for the Science of Human History, Jena, Germany
- Department of Anthropology, Harvard University, Boston, Massachusetts, United States of America
| | - Ogeto Mwebi
- Department of Zoology, Osteology Section, National Museums of Kenya, Nairobi, Kenya
| | - Samantha Brown
- Department of Archaeology, Max-Planck Institute for the Science of Human History, Jena, Germany
| | - Veronicah Onduso
- Department of Zoology, Osteology Section, National Museums of Kenya, Nairobi, Kenya
| | - Filia Gatwiri
- Department of Earth Sciences, Archaeology Section, National Museums of Kenya, Nairobi, Kenya
| | - Emmanuel Ndiema
- Department of Earth Sciences, Archaeology Section, National Museums of Kenya, Nairobi, Kenya
| | - Maggie Katongo
- Department of Archaeology, Livingstone Museum, Livingstone, Zambia
| | - Steven T. Goldstein
- Department of Archaeology, Max-Planck Institute for the Science of Human History, Jena, Germany
| | - Katerina Douka
- Department of Archaeology, Max-Planck Institute for the Science of Human History, Jena, Germany
| | - Nicole Boivin
- Department of Archaeology, Max-Planck Institute for the Science of Human History, Jena, Germany
- School of Social Science, The University of Queensland, Brisbane, Australia
- Department of Anthropology and Archaeology, University of Calgary, Calgary, Canada
- Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, D.C., United States of America
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5
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Choe K, Xue P, Zhao H, Sweedler JV. macroMS: Image-Guided Analysis of Random Objects by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry. J Am Soc Mass Spectrom 2021; 32:1180-1188. [PMID: 33822609 PMCID: PMC8102432 DOI: 10.1021/jasms.1c00013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Mass spectrometry imaging is well-suited to characterizing sample surfaces for their chemical content in a spatially resolved manner. However, when the surface contains small objects with significant empty spaces between them, more efficient approaches to sample acquisition are possible. Image-guided mass spectrometry (MS) enables high-throughput analysis of a diverse range of sample types, such as microbial colonies, liquid microdroplets, and others, by recognizing and analyzing selected location targets in an image. Here, we describe an imaging protocol and macroMS, an online software suite that can be used to enhance MS measurements of macroscopic samples that are imaged by a camera or a flatbed scanner. The web-based tool enables users to find and filter targets from the optical images, correct optical distortion issues for improved spatial location of selected targets, input the custom geometry files into an MS device to acquire spectra at the selected locations, and finally, perform limited data analysis and use visualization tools to aid locating samples containing compounds of interest. Using the macroMS suite, an enzyme mutant library of Saccharomyces cerevisiae and nL droplet arrays of Escherichia coli and Pseudomonas fluorescens have been assayed at a rate of ∼2 s/sample.
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Affiliation(s)
- Kisurb Choe
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
- Department of Energy Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Pu Xue
- Department of Energy Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
| | - Huimin Zhao
- Department of Energy Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
| | - Jonathan V. Sweedler
- Department of Energy Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
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6
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Vos DRN, Ellis SR, Balluff B, Heeren RMA. Experimental and Data Analysis Considerations for Three-Dimensional Mass Spectrometry Imaging in Biomedical Research. Mol Imaging Biol 2021; 23:149-159. [PMID: 33025328 PMCID: PMC7910367 DOI: 10.1007/s11307-020-01541-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/12/2020] [Accepted: 09/10/2020] [Indexed: 10/26/2022]
Abstract
Mass spectrometry imaging (MSI) enables the visualization of molecular distributions on complex surfaces. It has been extensively used in the field of biomedical research to investigate healthy and diseased tissues. Most of the MSI studies are conducted in a 2D fashion where only a single slice of the full sample volume is investigated. However, biological processes occur within a tissue volume and would ideally be investigated as a whole to gain a more comprehensive understanding of the spatial and molecular complexity of biological samples such as tissues and cells. Mass spectrometry imaging has therefore been expanded to the 3D realm whereby molecular distributions within a 3D sample can be visualized. The benefit of investigating volumetric data has led to a quick rise in the application of single-sample 3D-MSI investigations. Several experimental and data analysis aspects need to be considered to perform successful 3D-MSI studies. In this review, we discuss these aspects as well as ongoing developments that enable 3D-MSI to be routinely applied to multi-sample studies.
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Affiliation(s)
- D R N Vos
- The Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands
| | - S R Ellis
- The Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales, 2522, Australia
| | - B Balluff
- The Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands
| | - R M A Heeren
- The Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands.
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7
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Halvorsen TG, Levernæs MCS, Rosting C. Matrix-Assisted Ionization and Tandem Mass Spectrometry Capabilities in Protein Biomarker Characterization-An Initial Study Using the Small Cell Lung Cancer Biomarker Progastrin Releasing Peptide as a Model Compound. J Am Soc Mass Spectrom 2021; 32:611-614. [PMID: 33382608 DOI: 10.1021/jasms.0c00336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This initial study evaluates vacuum matrix-assisted ionization (vMAI) mass spectrometry (MS) for identification and determination of tryptic peptides from the biomarker protein progastrin releasing peptide (ProGRP). Similar peptides and charge states were observed as in liquid chromatography (LC) electrospray ionization (ESI) MS. The prolonged ion duration in vMAI with similar charge states as in ESI was advantageous for determining the MS/MS fragmentation conditions compared to MAI. It is assumed that the vacuum ionization conditions lower the detection limits of the experiment. This may be the reason vMAI combined with high resolution MS enabled detection of tryptic peptides from more digested proteins than MAI selected reaction monitoring MS. Additionally, MAI ion mobility spectrometry MS (MAI-IMS-MS) was evaluated for differentiation of intact protein isoforms, successfully enabling differentiation of the isoforms by drift time selection. Examples are both shown for model proteins bovine serum albumin, cytochrome C, and lysozyme and the clinically relevant small cell lung cancer protein biomarker ProGRP, which exists in three isoforms. Coupling with the vacuum ionization conditions using a dedicated vacuum-probe source MAI enables information to be extracted readily as with conventional approaches, just faster.
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Affiliation(s)
| | | | - Cecilie Rosting
- Department of Pharmacy, University of Oslo, 0371 Oslo, Norway
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8
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Wang Y, Zhang K, Tian T, Shan W, Qiao L, Liu B. Self-Assembled Au Nanoparticle Arrays for Precise Metabolic Assay of Cerebrospinal Fluid. ACS Appl Mater Interfaces 2021; 13:4886-4893. [PMID: 33464831 DOI: 10.1021/acsami.0c20944] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Precise and rapid monitoring of metabolites in biofluids is a desirable but unmet goal for disease diagnosis and management. Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) exhibits advantages in metabolite analysis. However, the low accuracy in quantification of the technique limits its transformation to clinical usage. We report herein the use of Au nanoparticle arrays self-assembled at liquid-liquid interfaces for mass spectrometry (MS)-based quantitative biofluids metabolic profiling. The two-dimensional arrays feature uniformly and closely packed Au nanoparticles with 3 nm interparticle gaps. The experimental study and theoretical simulation show that the arrays exhibit high photothermal conversion and heat confinement effects, which enhance the laser desorption/ionization efficacy. With the nanoscale roughness, the AuNP arrays as laser desorption/ionization substrates can interrupt the coffee-ring effect during droplet evaporation. Therefore, high reproducibility (RSD <5%) is obtained, enabling accurate quantitative analysis of diverse metabolites from 1 μL of biofluids in seconds. By quantifying glucose in the cerebrospinal fluid (CSF), it allows us to identify patients with brain infection and rapidly evaluate the clinical therapy response. Consequently, the method shows potential in advanced metabolite analysis and biomedical diagnostics.
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Affiliation(s)
- Yuning Wang
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438, P. R. China
| | - Kun Zhang
- Department of Neurosurgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, P. R. China
| | - Tongtong Tian
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438, P. R. China
| | - Weilong Shan
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, P. R. China
| | - Liang Qiao
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438, P. R. China
| | - Baohong Liu
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438, P. R. China
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9
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Dutkiewicz EP, Su CH, Lee HJ, Hsu CC, Yang YL. Visualizing vinca alkaloids in the petal of Catharanthus roseus using functionalized titanium oxide nanowire substrate for surface-assisted laser desorption/ionization imaging mass spectrometry. Plant J 2021; 105:1123-1133. [PMID: 33220116 DOI: 10.1111/tpj.15092] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/10/2020] [Indexed: 06/11/2023]
Abstract
Imaging mass spectrometry (IMS) is a powerful technique that enables analysis of various molecular species at a high spatial resolution with low detection limits. In contrast to the matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) approach, surface-assisted laser desorption/ionization (SALDI) can be more effective in the detection of small molecules due to the absence of interfering background signals in low m/z ranges. We developed a functionalized TiO2 nanowire as a solid substrate for IMS of low-molecular-weight species in plant tissues. We prepared TiO2 nanowires using an inexpensive modified hydrothermal process and subsequently functionalized them chemically with various silane analogs to overcome the problem of superhydrophilicity of the substrate. Chemical modification changed the selectivity of imprinting of samples deposited on the substrate surface and thus improved the detection limits. The substrate was applied to image distribution of the metabolites in very fragile specimens such as the petal of Catharanthus roseus. We observed that the metabolites are distributed heterogeneously in the petal, which is consistent with previous results reported for the C. roseus plant leaf and stem. The intermediates corresponding to the biosynthesis pathway of some vinca alkaloids were clearly shown in the petal. We also performed profiling of petals from five different cultivars of C. roseus plant. We verified the semi-quantitative capabilities of the imprinting/imaging approach by comparing results using the LC-MS analysis of the plant extracts. This suggested that the functionalized TiO2 nanowire substrate-based SALDI is a powerful technique complementary to MALDI-MS.
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Affiliation(s)
- Ewelina P Dutkiewicz
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Chun-Han Su
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Han-Jung Lee
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
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10
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Vu NQ, DeLaney K, Li L. Neuropeptidomics: Improvements in Mass Spectrometry Imaging Analysis and Recent Advancements. Curr Protein Pept Sci 2021; 22:158-169. [PMID: 33200705 PMCID: PMC8330971 DOI: 10.2174/1389203721666201116115708] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/29/2020] [Accepted: 07/23/2020] [Indexed: 12/13/2022]
Abstract
Neuropeptides are an important class of endogenous peptides in the nervous system that regulate physiological functions such as feeding, glucose homeostasis, pain, memory, reproduction, and many others. In order to understand the functional role of neuropeptides in diseases or disorders, studies investigating their dysregulation in terms of changes in abundance and localization must be carried out. As multiple neuropeptides are believed to play a functional role in each physiological process, techniques capable of global profiling multiple neuropeptides simultaneously are desired. Mass spectrometry is well-suited for this goal due to its ability to perform untargeted measurements without prior comprehensive knowledge of the analytes of interest. Mass spectrometry imaging (MSI) is particularly useful because it has the capability to image a large variety of peptides in a single experiment without labeling. Like all analytical techniques, careful sample preparation is critical to successful MSI analysis. The first half of this review focuses on recent developments in MSI sample preparation and instrumentation for analyzing neuropeptides and other biomolecules in which the sample preparation technique may be directly applicable for neuropeptide analysis. The benefit offered by incorporating these techniques is shown as improvement in a number of observable neuropeptides, enhanced signal to noise, increased spatial resolution, or a combination of these aspects. The second half of this review focuses on recent biological discoveries about neuropeptides resulting from these improvements in MSI analysis. The recent progress in neuropeptide detection and analysis methods, including the incorporation of various tissue washes, matrices, instruments, ionization sources, and computation approaches combined with the advancements in understanding neuropeptide function in a variety of model organisms, indicates the potential for the utilization of MSI analysis of neuropeptides in clinical settings.
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Affiliation(s)
- Nhu Q. Vu
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, USA
| | - Kellen DeLaney
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, USA
| | - Lingjun Li
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, USA
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
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11
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Li N, Nie H, Jiang L, Ruan G, Du F, Liu H. Recent advances of ambient ionization mass spectrometry imaging in clinical research. J Sep Sci 2020; 43:3146-3163. [PMID: 32573988 DOI: 10.1002/jssc.202000273] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/03/2020] [Accepted: 05/06/2020] [Indexed: 02/06/2023]
Abstract
The structural information and spatial distribution of molecules in biological tissues are closely related to the potential molecular mechanisms of disease origin, transfer, and classification. Ambient ionization mass spectrometry imaging is an effective tool that provides molecular images while describing in situ information of biomolecules in complex samples, in which ionization occurs at atmospheric pressure with the samples being analyzed in the native state. Ambient ionization mass spectrometry imaging can directly analyze tissue samples at a fairly high resolution to obtain molecules in situ information on the tissue surface to identify pathological features associated with a disease, resulting in the wide applications in pharmacy, food science, botanical research, and especially clinical research. Herein, novel ambient ionization techniques, such as techniques based on spray and solid-liquid extraction, techniques based on plasma desorption, techniques based on laser desorption ablation, and techniques based on acoustic desorption were introduced, and the data processing of ambient ionization mass spectrometry imaging was briefly reviewed. Besides, we also highlight recent applications of this imaging technology in clinical researches and discuss the challenges in this imaging technology and the perspectives on the future of the clinical research.
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Affiliation(s)
- Na Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, P. R. China
- College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China
| | - Honggang Nie
- College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China
| | - Liping Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, P. R. China
| | - Guihua Ruan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, P. R. China
| | - Fuyou Du
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, P. R. China
- College of Biological and Environmental Engineering, Changsha University, Changsha, P. R. China
| | - Huwei Liu
- College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China
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Ligterink NFW, Grimaudo V, Moreno-García P, Lukmanov R, Tulej M, Leya I, Lindner R, Wurz P, Cockell CS, Ehrenfreund P, Riedo A. ORIGIN: a novel and compact Laser Desorption - Mass Spectrometry system for sensitive in situ detection of amino acids on extraterrestrial surfaces. Sci Rep 2020; 10:9641. [PMID: 32541786 PMCID: PMC7296031 DOI: 10.1038/s41598-020-66240-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 05/14/2020] [Indexed: 11/17/2022] Open
Abstract
For the last four decades space exploration missions have searched for molecular life on planetary surfaces beyond Earth. Often pyrolysis gas chromatography mass spectrometry has been used as payload on such space exploration missions. These instruments have relatively low detection sensitivity and their measurements are often undermined by the presence of chloride salts and minerals. Currently, ocean worlds in the outer Solar System, such as the icy moons Europa and Enceladus, represent potentially habitable environments and are therefore prime targets for the search for biosignatures. For future space exploration missions, novel measurement concepts, capable of detecting low concentrations of biomolecules with significantly improved sensitivity and specificity are required. Here we report on a novel analytical technique for the detection of extremely low concentrations of amino acids using ORIGIN, a compact and lightweight laser desorption ionization - mass spectrometer designed and developed for in situ space exploration missions. The identified unique mass fragmentation patterns of amino acids coupled to a multi-position laser scan, allows for a robust identification and quantification of amino acids. With a detection limit of a few fmol mm-2, and the possibility for sub-fmol detection sensitivity, this measurement technique excels current space exploration systems by three orders of magnitude. Moreover, our detection method is not affected by chemical alterations through surface minerals and/or salts, such as NaCl that is expected to be present at the percent level on ocean worlds. Our results demonstrate that ORIGIN is a promising instrument for the detection of signatures of life and ready for upcoming space missions, such as the Europa Lander.
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Affiliation(s)
| | - Valentine Grimaudo
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Pavel Moreno-García
- Interfacial Electrochemistry Group, Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
| | - Rustam Lukmanov
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Marek Tulej
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Ingo Leya
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Robert Lindner
- Life Support and Physical Sciences Instrumentation Section, European Space Agency, ESTEC, Bern, The Netherlands
| | - Peter Wurz
- Space Research and Planetary Sciences, Physics Institute, University of Bern, Bern, Switzerland
| | - Charles S Cockell
- School of Physics and Astronomy, UK Centre for Astrobiology, University of Edinburgh, Edinburgh, United Kingdom
| | - Pascale Ehrenfreund
- Laboratory for Astrophysics, Leiden Observatory, Leiden University, Leiden, The Netherlands
- Space Policy Institute, George Washington University, 20052, Washington, DC, USA
| | - Andreas Riedo
- Laboratory for Astrophysics, Leiden Observatory, Leiden University, Leiden, The Netherlands
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13
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Pace CL, Horman B, Patisaul H, Muddiman DC. Analysis of neurotransmitters in rat placenta exposed to flame retardants using IR-MALDESI mass spectrometry imaging. Anal Bioanal Chem 2020; 412:3745-3752. [PMID: 32300844 DOI: 10.1007/s00216-020-02626-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/21/2020] [Accepted: 03/27/2020] [Indexed: 01/12/2023]
Abstract
Chemical exposures can adversely impact fetal development. For many compounds, including common flame retardants, the mechanisms by which this occurs remain unclear, but emerging evidence suggests that disruption at the level of the placenta may play a role. Understanding how the placenta might be vulnerable to chemical exposures is challenging due to its complex structure. The primary objective of this study was to develop a method for detecting placental neurotransmitters and related metabolites without chemical derivatization so changes in the abundance and spatial distribution of neurotransmitters in rat placenta following chemical exposure could be determined using infrared matrix-assisted laser desorption electrospray ionization (IR-MALDESI) mass spectrometry imaging. Without chemical derivatization, 49 neurotransmitters and their related metabolites were putatively identified in untreated rat placenta sections using mass measurement accuracy and spectral accuracy. A few neurotransmitters were less abundant in placentas that were exposed to various flame retardants and were further investigated by KEGG metabolic pathway analysis. Many of these downregulated neurotransmitters shared the same enzyme responsible for metabolism, aromaticl-amino acid decarboxylase, suggesting a mechanistic role. These data constitute a new approach that could help identify novel mechanisms of toxicity in complex tissues. Graphical abstract.
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Affiliation(s)
- Crystal L Pace
- FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA
| | - Brian Horman
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27695, USA
| | - Heather Patisaul
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27695, USA
- Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, 27695, USA
| | - David C Muddiman
- FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA.
- Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, 27695, USA.
- Molecular Education, Technology and Research Innovation Center (METRIC), North Carolina State University, Raleigh, NC, 27695, USA.
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14
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Park JM, Kim MJ, Noh JY, Yun TG, Kang MJ, Lee SG, Yoo BC, Pyun JC. Simultaneous Analysis of Multiple Cancer Biomarkers Using MALDI-TOF Mass Spectrometry Based on a Parylene-Matrix Chip. J Am Soc Mass Spectrom 2020; 31:917-926. [PMID: 32154716 DOI: 10.1021/jasms.9b00102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recently, the parylene-matrix chip was developed for quantitative analysis of small molecules less than 1 kDa. In this study, MALDI-TOF MS based on the parylene-matrix chip was performed to clinically diagnose intrahepatic cholangiocarcinoma (IHCC) and colorectal cancer (CRC). The parylene-matrix chip was applied for the detection of small cancer biomarkers, including N-methyl-2-pyridone-5-carboxamide (2PY), glutamine, lysophosphatidylcholine (LPC) 16:0, and LPC 18:0. The feasibility of MALDI-TOF MS based on the parylene-matrix chip was confirmed via analysis of spot-to-spot and shot-to-shot reproducibility. Serum metabolite markers of IHCC, N-methyl-2-pyridone-5-carboxamide (2PY), and glutamine were quantified using MALDI-TOF MS based on the parylene-matrix chip. For clinical diagnosis of CRC, two water-insoluble (barely soluble) biomarkers, lysophosphatidylcholine (LPC) 16:0 and LPC 18:0, were quantified. Finally, glutamine and LPC 16:0 were simultaneously detected at a range of concentrations in sera from colon cancer patients using the parylene-matrix chip. Thus, this method yielded high-throughput detection of cancer biomarkers for the mixture samples of water-soluble analytes (2PY and glutamine) and water-insoluble analytes (LPC 16:0 and LPC 18:0).
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Affiliation(s)
- Jong-Min Park
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Korea
| | - Moon-Ju Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Korea
| | - Joo-Yoon Noh
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Korea
| | - Tae Gyeong Yun
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Korea
| | - Min-Jung Kang
- Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
| | - Sang-Guk Lee
- Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Byong Chul Yoo
- Biomarker Branch, Research Institute, National Cancer Center, Goyang 10408, Korea
| | - Jae-Chul Pyun
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Korea
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15
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Fincher JA, Korte AR, Dyer JE, Yadavilli S, Morris NJ, Jones DR, Shanmugam VK, Pirlo RK, Vertes A. Mass spectrometry imaging of triglycerides in biological tissues by laser desorption ionization from silicon nanopost arrays. J Mass Spectrom 2020; 55:e4443. [PMID: 31524963 DOI: 10.1002/jms.4443] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/31/2019] [Accepted: 09/10/2019] [Indexed: 06/10/2023]
Abstract
Mass spectrometry imaging (MSI) is used increasingly to simultaneously detect a broad range of biomolecules while mapping their spatial distributions within biological tissue sections. Matrix-assisted laser desorption ionization (MALDI) is recognized as the method-of-choice for MSI applications due in part to its broad molecular coverage. In spite of the remarkable advantages offered by MALDI, imaging of neutral lipids, such as triglycerides (TGs), from tissue has remained a significant challenge due to ion suppression of TGs by phospholipids, e.g. phosphatidylcholines (PCs). To help overcome this limitation, silicon nanopost array (NAPA) substrates were introduced to selectively ionize TGs from biological tissue sections. This matrix-free laser desorption ionization (LDI) platform was previously shown to provide enhanced ionization of certain lipid classes, such as hexosylceramides (HexCers) and phosphatidylethanolamines (PEs) from mouse brain tissue. In this work, we present NAPA as an MSI platform offering enhanced ionization efficiency for TGs from biological tissues relative to MALDI, allowing it to serve as a complement to MALDI-MSI. Analysis of a standard lipid mixture containing PC(18:1/18:1) and TG(16:0/16:0/16:0) by LDI from NAPA provided an ~49 and ~227-fold higher signal for TG(16:0/16:0/16:0) relative to MALDI, when analyzed without and with the addition of a sodium acetate, respectively. In contrast, MALDI provided an ~757 and ~295-fold higher signal for PC(18:1/18:1) compared with NAPA, without and with additional Na+ . Averaged signal intensities for TGs from MSI of mouse lung and human skin tissues exhibited an ~105 and ~49-fold increase, respectively, with LDI from NAPA compared with MALDI. With respect to PCs, MALDI provided an ~2 and ~19-fold increase in signal intensity for mouse lung and human skin tissues, respectively, when compared with NAPA. The complementary coverage obtained by the two platforms demonstrates the utility of using both techniques to maximize the information obtained from lipid MS or MSI experiments.
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Affiliation(s)
- Jarod A Fincher
- Department of Chemistry, The George Washington University, Washington, DC, 20052, USA
| | - Andrew R Korte
- Department of Chemistry, The George Washington University, Washington, DC, 20052, USA
| | - Jacqueline E Dyer
- Department of Chemistry, The George Washington University, Washington, DC, 20052, USA
| | - Sridevi Yadavilli
- Research Center for Genetic Medicine, Children's National Medical Center, Washington, DC, 20010, USA
| | | | - Derek R Jones
- Division of Rheumatology, School of Medicine and Health Sciences, The George Washington University, Washington, DC, 20037, USA
| | - Victoria K Shanmugam
- Division of Rheumatology, School of Medicine and Health Sciences, The George Washington University, Washington, DC, 20037, USA
| | - Russel K Pirlo
- Chemistry Division, U.S. Naval Research Laboratory, Washington, DC, 20375, USA
| | - Akos Vertes
- Department of Chemistry, The George Washington University, Washington, DC, 20052, USA
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16
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Skopikova M, Hashimoto M, Richomme P, Schinkovitz A. Matrix-Free Laser Desorption Ionization Mass Spectrometry as an Efficient Tool for the Rapid Detection of Opiates in Crude Extracts of Papaver somniferum. J Agric Food Chem 2020; 68:884-891. [PMID: 31825610 DOI: 10.1021/acs.jafc.9b05153] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Having a long history of traditional medicinal applications, Papaver somniferum is also known as a source of various pharmacologically highly active opiates. Consequently, their detection from plant extracts is an important analytical task and generally addressed by methods of GC-MS and LC-MS. However, opiates do also show structural similarities to matrix molecules used in matrix-assisted laser desorption ionization (LDI) and may therefore ionize upon simple laser irradiation. Following this analytical approach, the present work thoroughly evaluated the direct detection of opiates by matrix-free LDI in crude extracts of P. somniferum. The method facilitated the identification of 10 reported opiates by their molecular formulas without any chromatographic prepurification. Moreover, a principal component analysis based on LDI-MS data permitted the correct grouping of all extracts according to their inherent chemistry. Concluding experiments on serial dilutions of thebaine further evaluated potential quantitative applications of the method. Overall results highlight the promising potential of LDI-MS for the swift detection of opiates in complex mixtures.
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Affiliation(s)
- Michaela Skopikova
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy , 16 Bd Daviers , 49045 Angers Cedex 01, France
| | | | - Pascal Richomme
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy , 16 Bd Daviers , 49045 Angers Cedex 01, France
| | - Andreas Schinkovitz
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy , 16 Bd Daviers , 49045 Angers Cedex 01, France
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17
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Liu Z, Zhang P, Kister T, Kraus T, Volmer DA. Ultrathin Homogenous AuNP Monolayers as Tunable Functional Substrates for Surface-Assisted Laser Desorption/Ionization of Small Biomolecules. J Am Soc Mass Spectrom 2020; 31:47-57. [PMID: 32881515 DOI: 10.1021/jasms.9b00038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A series of ultrathin, homogenous gold nanoparticle (AuNP) substrates for surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) were prepared using a simple air/water interface approach. These SALDI substrates enabled soft ionization and provided significant improvements in terms of signal intensities and reduced background levels in comparison to other AuNP morphologies for different analytes such as fatty acids, peptides, amino acids, saccharides, and drugs. Through different microscopic and spectroscopic methods, we determined that the packing homogeneity of the [AuNP]n substrates played a vital role in the efficiency of the SALDI process. We demonstrated that the signal intensities of the investigated analytes were readily optimized by manipulating the thickness of the [AuNP]n substrates. The desorption/ionization efficiency increased as a function of the number of layers and then reached a saturation point. The optimized [AuNP]n substrates not only exhibited high SALDI-MS desorption/ionization efficiencies but also showed excellent reproducibilities of the analyte signals.
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Affiliation(s)
- Zhen Liu
- Institute of Bioanalytical Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Peng Zhang
- School of Materials Science and Engineering, Sun Yat-sen University, Guanghzou 510275, China
| | - Thomas Kister
- INM-Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
| | - Tobias Kraus
- INM-Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
- Institute of Colloid and Interface Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Dietrich A Volmer
- Department of Chemistry, Humboldt University of Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
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18
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Spraggins JM, Djambazova KV, Rivera ES, Migas LG, Neumann EK, Fuetterer A, Suetering J, Goedecke N, Ly A, Van de Plas R, Caprioli RM. High-Performance Molecular Imaging with MALDI Trapped Ion-Mobility Time-of-Flight (timsTOF) Mass Spectrometry. Anal Chem 2019; 91:14552-14560. [PMID: 31593446 PMCID: PMC7382025 DOI: 10.1021/acs.analchem.9b03612] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Imaging mass spectrometry (IMS) enables the spatially targeted molecular assessment of biological tissues at cellular resolutions. New developments and technologies are essential for uncovering the molecular drivers of native physiological function and disease. Instrumentation must maximize spatial resolution, throughput, sensitivity, and specificity, because tissue imaging experiments consist of thousands to millions of pixels. Here, we report the development and application of a matrix-assisted laser desorption/ionization (MALDI) trapped ion-mobility spectrometry (TIMS) imaging platform. This prototype MALDI timsTOF instrument is capable of 10 μm spatial resolutions and 20 pixels/s throughput molecular imaging. The MALDI source utilizes a Bruker SmartBeam 3-D laser system that can generate a square burn pattern of <10 × 10 μm at the sample surface. General image performance was assessed using murine kidney and brain tissues and demonstrate that high-spatial-resolution imaging data can be generated rapidly with mass measurement errors <5 ppm and ∼40 000 resolving power. Initial TIMS-based imaging experiments were performed on whole-body mouse pup tissue demonstrating the separation of closely isobaric [PC(32:0) + Na]+ and [PC(34:3) + H]+ (3 mDa mass difference) in the gas phase. We have shown that the MALDI timsTOF platform can maintain reasonable data acquisition rates (>2 pixels/s) while providing the specificity necessary to differentiate components in complex mixtures of lipid adducts. The combination of high-spatial-resolution and throughput imaging capabilities with high-performance TIMS separations provides a uniquely tunable platform to address many challenges associated with advanced molecular imaging applications.
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Affiliation(s)
- Jeffrey M Spraggins
- Department of Biochemistry , Vanderbilt University , 607 Light Hall , Nashville , Tennessee 37205 , United States
- Department of Chemistry , Vanderbilt University , 7330 Stevenson Center, Station B 351822 , Nashville , Tennessee 37235 , United States
| | - Katerina V Djambazova
- Department of Chemistry , Vanderbilt University , 7330 Stevenson Center, Station B 351822 , Nashville , Tennessee 37235 , United States
| | - Emilio S Rivera
- Department of Biochemistry , Vanderbilt University , 607 Light Hall , Nashville , Tennessee 37205 , United States
| | - Lukasz G Migas
- Delft Center for Systems and Control (DCSC) , Delft University of Technology , 2628 CD Delft , The Netherlands
| | - Elizabeth K Neumann
- Department of Biochemistry , Vanderbilt University , 607 Light Hall , Nashville , Tennessee 37205 , United States
| | - Arne Fuetterer
- Bruker Daltonik GmbH , Fahrenheitstraße 4 , 28359 Bremen , Germany
| | | | - Niels Goedecke
- Bruker Daltonik GmbH , Fahrenheitstraße 4 , 28359 Bremen , Germany
| | - Alice Ly
- Bruker Daltonik GmbH , Fahrenheitstraße 4 , 28359 Bremen , Germany
| | - Raf Van de Plas
- Department of Biochemistry , Vanderbilt University , 607 Light Hall , Nashville , Tennessee 37205 , United States
- Delft Center for Systems and Control (DCSC) , Delft University of Technology , 2628 CD Delft , The Netherlands
| | - Richard M Caprioli
- Department of Biochemistry , Vanderbilt University , 607 Light Hall , Nashville , Tennessee 37205 , United States
- Department of Chemistry , Vanderbilt University , 7330 Stevenson Center, Station B 351822 , Nashville , Tennessee 37235 , United States
- Department of Pharmacology , Vanderbilt University , 2220 Pierce Avenue , Nashville , Tennessee 37232 , United States
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19
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Ogrinc N, Saudemont P, Balog J, Robin YM, Gimeno JP, Pascal Q, Tierny D, Takats Z, Salzet M, Fournier I. Water-assisted laser desorption/ionization mass spectrometry for minimally invasive in vivo and real-time surface analysis using SpiderMass. Nat Protoc 2019; 14:3162-3182. [PMID: 31597965 DOI: 10.1038/s41596-019-0217-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 06/14/2019] [Indexed: 11/09/2022]
Abstract
Rapid, sensitive, precise and accurate analysis of samples in their native in vivo environment is critical to better decipher physiological and physiopathological mechanisms. SpiderMass is an ambient mass spectrometry (MS) system designed for mobile in vivo and real-time surface analyses of biological tissues. The system uses a fibered laser, which is tuned to excite the most intense vibrational band of water, resulting in a process termed water-assisted laser desorption/ionization (WALDI). The water molecules act as an endogenous matrix in a matrix-assisted laser desorption ionization (MALDI)-like scenario, leading to the desorption/ionization of biomolecules (lipids, metabolites and proteins). The ejected material is transferred to the mass spectrometer through an atmospheric interface and a transfer line that is several meters long. Here, we formulate a three-stage procedure that includes (i) a laser system setup coupled to a Waters Q-TOF or Thermo Fisher Q Exactive mass analyzer, (ii) analysis of specimens and (iii) data processing. We also describe the optimal setup for the analysis of cell cultures, fresh-frozen tissue sections and in vivo experiments on skin. With proper optimization, the system can be used for a variety of different targets and applications. The entire procedure takes 1-2 d for complex samples.
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Affiliation(s)
- Nina Ogrinc
- Université de Lille, Inserm U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Villeneuve d'Ascq, France
| | - Philippe Saudemont
- Université de Lille, Inserm U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Villeneuve d'Ascq, France
- SATT-Nord, Immeuble Central Gare, Lille, France
| | - Julia Balog
- Department of Surgery and Cancer, St Mary's Hospital, Imperial College London, London, UK
| | - Yves-Marie Robin
- Université de Lille, Inserm U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Villeneuve d'Ascq, France
- Unité de Pathologie Morphologique et Moléculaire, Centre Oscar Lambret, Lille, France
| | - Jean-Pascal Gimeno
- Université de Lille, Inserm U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Villeneuve d'Ascq, France
| | - Quentin Pascal
- Université de Lille, Inserm U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Villeneuve d'Ascq, France
- OCR (Oncovet Clinical Research), Eurasanté, Loos, France
| | - Dominique Tierny
- Université de Lille, Inserm U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Villeneuve d'Ascq, France
- OCR (Oncovet Clinical Research), Eurasanté, Loos, France
| | - Zoltan Takats
- Department of Surgery and Cancer, St Mary's Hospital, Imperial College London, London, UK
| | - Michel Salzet
- Université de Lille, Inserm U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Villeneuve d'Ascq, France.
| | - Isabelle Fournier
- Université de Lille, Inserm U1192, Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (PRISM), Villeneuve d'Ascq, France.
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20
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Morikawa-Ichinose T, Fujimura Y, Murayama F, Yamazaki Y, Yamamoto T, Wariishi H, Miura D. Improvement of Sensitivity and Reproducibility for Imaging of Endogenous Metabolites by Matrix-Assisted Laser Desorption/Ionization-Mass Spectrometry. J Am Soc Mass Spectrom 2019; 30:1512-1520. [PMID: 31044355 DOI: 10.1007/s13361-019-02221-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/04/2019] [Accepted: 04/10/2019] [Indexed: 05/18/2023]
Abstract
Matrix-assisted laser desorption/ionization (MALDI)-mass spectrometry imaging (MSI) is a powerful technique to visualize the distributions of biomolecules without any labeling. In MALDI-MSI experiments, the choice of matrix deposition method is important for acquiring favorable MSI data with high sensitivity and high reproducibility. Generally, manual or automated spray-coating and automated sublimation methods are used, but these methods have some drawbacks with respect to detection sensitivity, spatial resolution, and data reproducibility. Herein, we present an optimized matrix deposition method of sublimation coupled with recrystallization using 9-aminoacridine (9-AA) as a matrix capable of ionizing endogenous metabolites. The matrix recrystallization process after sublimation was optimized for the solvent concentration and reaction temperature for matrix-metabolite co-crystallization. This optimized method showed excellent reproducibility and spatial resolution compared to the automatic spray-coating method. Furthermore, the recrystallization step after sublimation remarkably improved the detectability of metabolites, including amino acids, nucleotide derivatives, and lipids, compared with the conventional sublimation method. To date, there have been no other reports of 9-AA-based sublimation combined with recrystallization. The present method provides an easy, sensitive, and reproducible matrix deposition method for MALDI-MSI of endogenous metabolites. Graphical Abstract.
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Affiliation(s)
- Tomomi Morikawa-Ichinose
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
- Innovation Center for Medical Redox Navigation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yoshinori Fujimura
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
- Innovation Center for Medical Redox Navigation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Fusa Murayama
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
- Innovation Center for Medical Redox Navigation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yuzo Yamazaki
- Analytical Applications Department, Global Application Development Center, Shimadzu Corporation, 1 Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto, 604-8511, Japan
| | - Takushi Yamamoto
- Analytical Applications Department, Global Application Development Center, Shimadzu Corporation, 1 Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto, 604-8511, Japan
| | - Hiroyuki Wariishi
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
- Innovation Center for Medical Redox Navigation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Daisuke Miura
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan.
- Innovation Center for Medical Redox Navigation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1, Higashi, Tsukuba, Ibaraki, 305-8566, Japan.
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21
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Abstract
There is an increasing appreciation that every cell, even of the same type, is different. This complexity, when additionally combined with the variety of different cell types in tissue, is driving the need for spatially resolved omics at the single-cell scale. Rapid advances are being made in genomics and transcriptomics, but progress in metabolomics lags. This is partly because amplification and tagging strategies are not suited to dynamically created metabolite molecules. Mass spectrometry imaging has excellent potential for metabolic imaging. This review summarizes the recent advances in two of these techniques: matrix-assisted laser desorption ionization (MALDI) and secondary ion mass spectrometry (SIMS) and their convergence in subcellular spatial resolution and molecular information. The barriers that have held back progress such as lack of sensitivity and the breakthroughs that have been made including laser-postionization are highlighted as well as the future challenges and opportunities for metabolic imaging at the single-cell scale.
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Affiliation(s)
- Ian S Gilmore
- National Physical Laboratory, Teddington, Middlesex, TW11 0LW, United Kingdom; k
| | - Sven Heiles
- Institute of Inorganic and Analytical Chemistry , Justus Liebig University Giessen, D-35392 Giessen, Germany
| | - Cornelius L Pieterse
- National Physical Laboratory, Teddington, Middlesex, TW11 0LW, United Kingdom; k
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Condina MR, Dilmetz BA, Razavi Bazaz S, Meneses J, Ebrahimi Warkiani M, Hoffmann P. Rapid separation and identification of beer spoilage bacteria by inertial microfluidics and MALDI-TOF mass spectrometry. Lab Chip 2019; 19:1961-1970. [PMID: 31099359 DOI: 10.1039/c9lc00152b] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOF MS), in combination with Biotyper software, is a rapid, high-throughput, and accurate method for the identification of microbes. Microbial outbreaks in a brewery present a major risk for companies as it can lead to cost-intensive recalls and damage to the brand reputation. MALDI-TOF MS has been implemented into a brewery setting for quality control practices and the identification of beer spoilage microorganisms. However, the applicability of this approach is hindered by compatibility issues associated with mixed cultures, requiring the use of time-consuming selective cultivation techniques prior to identification. We propose a novel, low-cost approach based on the combination of inertial microfluidics and secondary flows in a spiral microchannel for high-throughput and efficient separation of yeasts (Saccharomyces pastorianus and Saccharomyces cerevisiae) from beer spoilage microorganisms (Lactobacillus brevis and Pediococcus damnosus). Flow rates were optimised using S. pastorianus and L. brevis, leading to separation of more than 90% of the L. brevis cells from yeast. The microorganisms were then identified to the species level using the MALDI-TOF MS platform using standard sample preparation protocols. This study shows the high-throughput and rapid separation of spoilage microorganisms (0.3-3 μm) from background yeast (5 μm) from beer, subsequent identification using MALDI Biotyper, and the potential applicability of the approach for biological control in the brewing industry.
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Affiliation(s)
- Mark R Condina
- Future Industries Institute, University of South Australia, Adelaide, Australia.
| | - Brooke A Dilmetz
- Future Industries Institute, University of South Australia, Adelaide, Australia.
| | - Sajad Razavi Bazaz
- School of Biomedical Engineering, University of Technology Sydney, Australia.
| | | | - Majid Ebrahimi Warkiani
- School of Biomedical Engineering, University of Technology Sydney, Australia. and Institute of Molecular Medicine, Sechenov University, Moscow 119991, Russia
| | - Peter Hoffmann
- Future Industries Institute, University of South Australia, Adelaide, Australia.
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23
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Hamdi A, Enjalbal C, Drobecq H, Boukherroub R, Melnyk O, Ezzaouia H, Coffinier Y. Fast and facile preparation of nanostructured silicon surfaces for laser desorption/ionization mass spectrometry of small compounds. Rapid Commun Mass Spectrom 2019; 33 Suppl 1:66-74. [PMID: 30048019 DOI: 10.1002/rcm.8245] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE Many important biological processes rely on specific biomarkers (such as metabolites, drugs, proteins or peptides, carbohydrates, lipids, ...) that need to be monitored in various fluids (blood, plasma, urine, cell cultures, tissue homogenates, …). Although mass spectrometry (MS) hyphenated to liquid chromatography (LC) is widely accepted as a 'gold-standard' method for identifying such synthetic chemicals or biological products, their robust fast sensitive detection from complex matrices still constitutes a highly challenging matter. METHODS In order to circumvent the constraints intrinsic to LC/MS technology in terms of prior sample treatment, analysis time and overall method development to optimize ionization efficiency affecting the detection threshold, we investigated laser desorption/ionization mass spectrometry (LDI-MS) by directly depositing the sample under study onto cheap inert nanostructures made of silicon to perform straightforward sensitive and rapid screening of targeted low mass biomarkers on a conventional MALDI platform. RESULTS The investigated silicon nanostructures were found to act as very efficient ion-promoting surfaces exhibiting high performance for the detection of different classes of organic compounds, including glutathione, glucose, peptides and antibiotics. Achieving such broad detection was compulsory to develop a SALDI-MS-based pre-screening tool. CONCLUSIONS The key contribution of the described analytical strategy consists of designing inert surfaces that are fast (minute preparation) and cheap to produce, easy to handle and able to detect small organic compounds in matrix-free LDI-MS prerequisite for biomarkers pre-screening from body fluids without the recourse of any separation step.
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Affiliation(s)
- Abderrahmane Hamdi
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, IEMN, UMR CNRS 8520, Avenue Poincaré, BP 60069, 59652, Villeneuve d'Ascq, France
- Laboratory of Semi-conductors, Nano-structures and Advanced Technologies, Research and Technology Centre of Energy, Borj-Cedria Science and Technology Park, BP 95, 2050, Hammam-Lif, Tunisia
- Faculty of Science of Bizerte, University of Carthage, 7021, Zarzouna, Tunisia
| | - Christine Enjalbal
- Univ. Montpellier, Institut des Biomolécules Max Mousseron, Place Eugène Bataillon, 34095, Montpellier, France
| | - Hervé Drobecq
- Institut de biologie de Lille, UMR CNRS 8160, 59000, Lille, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, IEMN, UMR CNRS 8520, Avenue Poincaré, BP 60069, 59652, Villeneuve d'Ascq, France
| | - Oleg Melnyk
- Institut de biologie de Lille, UMR CNRS 8160, 59000, Lille, France
| | - Hatem Ezzaouia
- Laboratory of Semi-conductors, Nano-structures and Advanced Technologies, Research and Technology Centre of Energy, Borj-Cedria Science and Technology Park, BP 95, 2050, Hammam-Lif, Tunisia
| | - Yannick Coffinier
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, IEMN, UMR CNRS 8520, Avenue Poincaré, BP 60069, 59652, Villeneuve d'Ascq, France
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Linscheid MW. Molecules and elements for quantitative bioanalysis: The allure of using electrospray, MALDI, and ICP mass spectrometry side-by-side. Mass Spectrom Rev 2019; 38:169-186. [PMID: 29603315 DOI: 10.1002/mas.21567] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 03/12/2018] [Indexed: 06/08/2023]
Abstract
To understand biological processes, not only reliable identification, but quantification of constituents in biological processes play a pivotal role. This is especially true for the proteome: protein quantification must follow protein identification, since sometimes minute changes in abundance tell the real tale. To obtain quantitative data, many sophisticated strategies using electrospray and MALDI mass spectrometry (MS) have been developed in recent years. All of them have advantages and limitations. Several years ago, we started to work on strategies, which are principally capable to overcome some of these limits. The fundamental idea is to use elemental signals as a measure for quantities. We began by replacing the radioactive 32 P with the "cold" natural 31 P to quantify modified nucleotides and phosphorylated peptides and proteins and later used tagging strategies for quantification of proteins more generally. To do this, we introduced Inductively Coupled Plasma Mass Spectrometry (ICP-MS) into the bioanalytical workflows, allowing not only reliable and sensitive detection but also quantification based on isotope dilution absolute measurements using poly-isotopic elements. The detection capability of ICP-MS becomes particularly attractive with heavy metals. The covalently bound proteins tags developed in our group are based on the well-known DOTA chelate complex (1,4,7,10-tetraazacyclododecane-N,N',N″,N‴-tetraacetic acid) carrying ions of lanthanoides as metal core. In this review, I will outline the development of this mutual assistance between molecular and elemental mass spectrometry and discuss the scope and limitations particularly of peptide and protein quantification. The lanthanoide tags provide low detection limits, but offer multiplexing capabilities due to the number of very similar lanthanoides and their isotopes. With isotope dilution comes previously unknown accuracy. Separation techniques such as electrophoresis and HPLC were used and just slightly adapted workflows, already in use for quantification in bioanalysis. Imaging mass spectrometry (MSI) with MALDI and laser ablation ICP-MS complemented the range of application in recent years.
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MESH Headings
- Animals
- Chelating Agents/chemistry
- Chromatography, High Pressure Liquid/instrumentation
- Chromatography, High Pressure Liquid/methods
- Heterocyclic Compounds, 1-Ring/chemistry
- Humans
- Lanthanoid Series Elements/chemistry
- Nucleotides/analysis
- Proteins/analysis
- Spectrometry, Mass, Electrospray Ionization/instrumentation
- Spectrometry, Mass, Electrospray Ionization/methods
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/instrumentation
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods
- Workflow
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Moreno-Pedraza A, Rosas-Román I, Garcia-Rojas NS, Guillén-Alonso H, Ovando-Vázquez C, Díaz-Ramírez D, Cuevas-Contreras J, Vergara F, Marsch-Martínez N, Molina-Torres J, Winkler R. Elucidating the Distribution of Plant Metabolites from Native Tissues with Laser Desorption Low-Temperature Plasma Mass Spectrometry Imaging. Anal Chem 2019; 91:2734-2743. [PMID: 30636413 DOI: 10.1021/acs.analchem.8b04406] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Secondary metabolites of plants have important biological functions, which often depend on their localization in tissues. Ideally, a fresh untreated material should be directly analyzed to obtain a realistic view of the true sample chemistry. Therefore, there is a large interest for ambient mass-spectrometry-based imaging (MSI) methods. Our aim was to simplify this technology and to find an optimal combination of desorption/ionization principles for a fast ambient MSI of macroscopic plant samples. We coupled a 405 nm continuous wave (CW) ultraviolet (UV) diode laser to a three-dimensionally (3D) printed low-temperature plasma (LTP) probe. By moving the sample with a RepRap-based sampling stage, we could perform imaging of samples up to 16 × 16 cm2. We demonstrate the system performance by mapping mescaline in a San Pedro cactus ( Echinopsis pachanoi) cross section, tropane alkaloids in jimsonweed ( Datura stramonium) fruits and seeds, and nicotine in tobacco ( Nicotiana tabacum) seedlings. In all cases, the anatomical regions of enriched compound concentrations were correctly depicted. The modular design of the laser desorption (LD)-LTP MSI platform, which is mainly assembled from commercial and 3D-printed components, facilitates its adoption by other research groups. The use of the CW-UV laser for desorption enables fast imaging measurements. A complete tobacco seedling with an image size of 9.2 × 15.0 mm2 was analyzed at a pixel size of 100 × 100 μm2 (14 043 mass scans), in less than 2 h. Natural products can be measured directly from native tissues, which inspires a broad use of LD-LTP MSI in plant chemistry studies.
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Affiliation(s)
- Abigail Moreno-Pedraza
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
| | - Ignacio Rosas-Román
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
| | - Nancy Shyrley Garcia-Rojas
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
| | - Héctor Guillén-Alonso
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
| | - Cesaré Ovando-Vázquez
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
- CONACYT Potosino Institute of Scientific and Technological Research, National Supercomputing Center , Camino a la Presa San José 2055 , Colonia Lomas 4ta Sección, 78216 San Luis Potosí , Mexico
| | - David Díaz-Ramírez
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
| | - Jessica Cuevas-Contreras
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
| | - Fredd Vergara
- German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig , Deutscher Platz 5e , 04103 Leipzig , Germany
| | - Nayelli Marsch-Martínez
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
| | - Jorge Molina-Torres
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
| | - Robert Winkler
- Department of Biochemistry and Biotechnology , Center for Research and Advanced Studies Irapuato , Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León , 36824 Irapuato , Guanajuato , Mexico
- Mass Spectrometry Group , Max Planck Institute for Chemical Ecology , Beutenberg Campus, Hans-Knoell-Strasse 8 , 07745 Jena , Germany
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Ryan DJ, Spraggins JM, Caprioli RM. Protein identification strategies in MALDI imaging mass spectrometry: a brief review. Curr Opin Chem Biol 2019; 48:64-72. [PMID: 30476689 PMCID: PMC6382520 DOI: 10.1016/j.cbpa.2018.10.023] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/26/2018] [Accepted: 10/26/2018] [Indexed: 01/21/2023]
Abstract
Matrix assisted laser desorption/ionization (MALDI) imaging mass spectrometry (IMS) is a powerful technology used to investigate the spatial distributions of thousands of molecules throughout a tissue section from a single experiment. As proteins represent an important group of functional molecules in tissue and cells, the imaging of proteins has been an important point of focus in the development of IMS technologies and methods. Protein identification is crucial for the biological contextualization of molecular imaging data. However, gas-phase fragmentation efficiency of MALDI generated proteins presents significant challenges, making protein identification directly from tissue difficult. This review highlights methods and technologies specifically related to protein identification that have been developed to overcome these challenges in MALDI IMS experiments.
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Affiliation(s)
- Daniel J. Ryan
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Station B 351822, Nashville, TN 37235, USA
- Mass Spectrometry Research Center, Vanderbilt University, 465 21 Ave S #9160, Nashville, TN 37235, USA
| | - Jeffrey M. Spraggins
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Station B 351822, Nashville, TN 37235, USA
- Mass Spectrometry Research Center, Vanderbilt University, 465 21 Ave S #9160, Nashville, TN 37235, USA
- Department of Biochemistry, Vanderbilt University, 607 Light Hall, Nashville, TN 37205, USA
| | - Richard M. Caprioli
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Station B 351822, Nashville, TN 37235, USA
- Mass Spectrometry Research Center, Vanderbilt University, 465 21 Ave S #9160, Nashville, TN 37235, USA
- Department of Biochemistry, Vanderbilt University, 607 Light Hall, Nashville, TN 37205, USA
- Department of Pharmacology, Vanderbilt University, 442 Robinson Research Building, 2220 Pierce Avenue, Nashville, TN 37232, USA
- Department of Medicine, Vanderbilt University, 465 21 Ave #9160, Nashville, TN 37235, USA
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27
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Bednařík A, Machálková M, Moskovets E, Coufalíková K, Krásenský P, Houška P, Kroupa J, Navrátilová J, Šmarda J, Preisler J. MALDI MS Imaging at Acquisition Rates Exceeding 100 Pixels per Second. J Am Soc Mass Spectrom 2019; 30:289-298. [PMID: 30456596 DOI: 10.1007/s13361-018-2078-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 09/10/2018] [Accepted: 10/04/2018] [Indexed: 06/09/2023]
Abstract
The practicality of matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometry (MS) applied to molecular imaging of biological tissues is limited by the analysis speed. Typically, a relatively low speed of stop-and-go micromotion of XY stages is considered as a factor substantially reducing the rate with which fresh sample material can be supplied to the laser spot. The sample scan rate in our laboratory-built high-throughput imaging TOF mass spectrometer was significantly improved through the use of a galvanometer-based optical scanner performing fast laser spot repositioning on a target plate. The optical system incorporated into the ion source of our MALDI TOF mass spectrometer allowed focusing the laser beam via a modified grid into a 10-μm round spot. This permitted the acquisition of high-resolution MS images with a well-defined pixel size at acquisition rates exceeding 100 pixel/s. The influence of selected parameters on the total MS imaging time is discussed. The new scanning technique was employed to display the distribution of an antitumor agent in 3D colorectal adenocarcinoma cell aggregates; a single MS image comprising 100 × 100 pixels with 10-μm lateral resolution was recorded in approximately 70 s. Graphical Abstract.
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Affiliation(s)
- Antonín Bednařík
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
| | - Markéta Machálková
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | | | - Kateřina Coufalíková
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Pavel Krásenský
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Pavel Houška
- Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic
| | - Jiří Kroupa
- Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic
| | - Jarmila Navrátilová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Center for Biological and Cellular Engineering, International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Jan Šmarda
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jan Preisler
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic.
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28
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Cechová M, Hradilová I, Smýkal P, Barták P, Bednář P. Utilization of atmospheric solids analysis probe mass spectrometry for analysis of fatty acids on seed surface. Anal Bioanal Chem 2019; 411:1169-1180. [PMID: 30617396 DOI: 10.1007/s00216-018-1551-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/06/2018] [Accepted: 12/10/2018] [Indexed: 10/27/2022]
Abstract
Atmospheric solids analysis probe mass spectrometry (ASAP-MS) was used for the first time for direct surface analysis of plant material. It can be readily used for surface analysis of whole and intact pea seeds and their seed coats, and for the study of the profile of fatty acids on the outer surface. Furthermore, ASAP-MS in combination with multivariate statistics allowed classification of pea genotypes with respect to physical dormancy and investigation of related biological markers. Hexacosanoic and octacosanoic acids were suggested to be important markers likely influencing water transport through the seed coat into the embryo (with the highest significance for dormant L100 genotype). ASAP-MS provided higher selectivity and better signal of fatty acids compared to (MA)LDI-MS (laser desorption ionization mass spectrometry either matrix free or matrix assisted) providing on the other hand spatial distribution information and results obtained by both methods are mutually supportive. The developed ASAP-MS method and obtained results can be widely utilized in biological, food, and agricultural research. Graphical abstract ᅟ.
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Affiliation(s)
- Monika Cechová
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, 17. Listopadu 12, 771 46, Olomouc, Czech Republic
| | - Iveta Hradilová
- Department of Botany, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Petr Smýkal
- Department of Botany, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Petr Barták
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, 17. Listopadu 12, 771 46, Olomouc, Czech Republic
| | - Petr Bednář
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, 17. Listopadu 12, 771 46, Olomouc, Czech Republic.
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Tibayrenc M, de Meeûs T, Morand S. Modern research tools to combat the infectious peril: just at the beginning. Infect Genet Evol 2018; 63:291. [PMID: 30126730 DOI: 10.1016/j.meegid.2018.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Chen PY, Hsieh CY, Shih CJ, Lin YJ, Tsao CW, Yang YL. Exploration of Fungal Metabolic Interactions Using Imaging Mass Spectrometry on Nanostructured Silicon. J Nat Prod 2018; 81:1527-1533. [PMID: 29916245 DOI: 10.1021/acs.jnatprod.7b00866] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Application of matrix-assisted laser desorption/ionization imaging mass spectrometry to microbiology and natural product research has opened the door to the exploration of microbial interactions and the consequent discovery of new natural products and their functions in the interactions. However, several drawbacks of matrix-assisted laser desorption/ionization imaging mass spectrometry have limited its application especially to complicated and uneven microbial samples. Here, we applied nanostructured silicon as a substrate for surface-assisted laser desorption/ionization mass spectrometry for microbial imaging mass spectrometry to explore fungal metabolic interactions. We chose Phellinus noxius and Aspergillus strains to evaluate the potential of microbial imaging mass spectrometry on nanostructured silicon because both fungi produce a dense mass of aerial mycelia, which is known to complicate the collection of high-quality imaging mass spectrometry data. Our simple and straightforward sample imprinting method and low background interference resulted in an efficient analysis of small metabolites from the complex microbial interaction samples.
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Affiliation(s)
- Pi-Yu Chen
- Agricultural Biotechnology Research Center , Academia Sinica , 11529 Taipei , Taiwan
| | - Chi-Ying Hsieh
- Agricultural Biotechnology Research Center , Academia Sinica , 11529 Taipei , Taiwan
| | - Chao-Jen Shih
- Agricultural Biotechnology Research Center , Academia Sinica , 11529 Taipei , Taiwan
- Bioresource Collection and Research Center , Food Industry Research and Development Institute , 30062 Hsinchu , Taiwan
| | - Yuan-Jing Lin
- Department of Mechanical Engineering , National Central University , 32001 Taoyuan , Taiwan
| | - Chia-Wen Tsao
- Department of Mechanical Engineering , National Central University , 32001 Taoyuan , Taiwan
| | - Yu-Liang Yang
- Agricultural Biotechnology Research Center , Academia Sinica , 11529 Taipei , Taiwan
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31
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2013-2014. Mass Spectrom Rev 2018; 37:353-491. [PMID: 29687922 DOI: 10.1002/mas.21530] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/29/2016] [Indexed: 06/08/2023]
Abstract
This review is the eighth update of the original article published in 1999 on the application of Matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2014. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, and arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly- saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2018 Wiley Periodicals, Inc. Mass Spec Rev 37:353-491, 2018.
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Affiliation(s)
- David J Harvey
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, United Kingdom
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Abstract
Phosphatases, the enzymes responsible for dephosphorylating proteins, play critical roles in many cellular processes. While their importance is widely recognized, phosphatase activity and regulation remain poorly understood. Currently, there are few assays available that are capable of directly measuring phosphatase activity and specificity. We have previously introduced SAMDI (self-assembled monolayers on gold for matrix-assisted laser desorption/ionization) mass spectrometry as a technique to profile the substrate specificities of enzymes. SAMDI mass spectrometry assays are well suited to examine phosphatase activities and offer many advantages over current methods. This technique uses monolayers that terminate with a peptide or molecular enzyme substrate and allows for enzyme reactions to be performed on a surface that can easily be rinsed and analyzed by mass spectrometry without the need for analyte labeling. In this chapter, we describe the process of combining SAMDI mass spectrometry with peptide arrays to study the substrate specificities of two protein tyrosine phosphatases.
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Affiliation(s)
- Lindsey C Szymczak
- Department of Chemistry, Northwestern University, Evanston, IL, United States
| | - Che-Fan Huang
- Department of Chemistry, Northwestern University, Evanston, IL, United States
| | - Eric J Berns
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States
| | - Milan Mrksich
- Department of Chemistry, Northwestern University, Evanston, IL, United States; Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States.
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Wu X, Li W, Guo P, Zhang Z, Xu H. Rapid Trace Detection and Isomer Quantitation of Pesticide Residues via Matrix-Assisted Laser Desorption/Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. J Agric Food Chem 2018; 66:3966-3974. [PMID: 29589938 DOI: 10.1021/acs.jafc.8b00427] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry (MALDI-FTICR-MS) has been applied for rapid, sensitive, undisputed, and quantitative detection of pesticide residues on fresh leaves with little sample pretreatment. Various pesticides (insecticides, bactericides, herbicides, and acaricides) are detected directly in the complex matrix with excellent limits of detection down to 4 μg/L. FTICR-MS could unambiguously identify pesticides with tiny mass differences (∼0.017 75 Da), thereby avoiding false-positive results. Remarkably, pesticide isomers can be totally discriminated by use of diagnostic fragments, and quantitative analysis of pesticide isomers is demonstrated. The present results expand the horizons of the MALDI-FTICR-MS platform in the reliable determination of pesticides, with integrated advantages of ultrahigh mass resolution and accuracy. This method provides growing evidence for the resultant detrimental effects of pesticides, expediting the identification and evaluation of innovative pesticides.
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Affiliation(s)
- Xinzhou Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education , South China Agricultural University , Guangzhou 510642 , China
| | - Weifeng Li
- Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals and Guangdong Engineering and Technology Research Center for Ambient Mass Spectrometry , Guangdong Institute of Analysis , Guangzhou 510070 , China
| | - Pengran Guo
- Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals and Guangdong Engineering and Technology Research Center for Ambient Mass Spectrometry , Guangdong Institute of Analysis , Guangzhou 510070 , China
| | - Zhixiang Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education , South China Agricultural University , Guangzhou 510642 , China
| | - Hanhong Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education , South China Agricultural University , Guangzhou 510642 , China
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Shin HC, Deterra D, Park J, Kim H, Nishikiori M, Uetrecht C, Ahlquist PG, Arbulu M, Blick RH. Ultra-high mass multimer analysis of protein-1a capping domains by a silicon nanomembrane detector. J Proteomics 2018; 175:5-11. [PMID: 29199149 DOI: 10.1016/j.jprot.2017.11.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 11/20/2017] [Accepted: 11/27/2017] [Indexed: 11/17/2022]
Abstract
Conventional time of flight ion detectors are based on secondary electron multipliers encountering a significant loss in detection efficiency, sensitivity and resolution with protein mass above 50kDa. In this work we employ a silicon nanomembrane detector in a Matrix-Assisted Laser Desorption/Ionization coupled to time of flight (MALDI-TOF) mass spectrometer. The operating principle relies on phonon-assisted field emission with excellent performance in the high mass range from 0.001-2MDa. In addition to the analysis of standard proteins the nanomembrane detector (NMD) has the potential for the detection and structural investigation of complex macromolecular assemblies through non-covalent interactions. In order to investigate this hypothesis, the N-terminal capping/methyltransferase domain (CAP) of the Brome Mosaic Virus (BMV) 1a replication protein by MALDI-TOF-NMD is analyzed. The signals detected at the high m/z-ratios of 912.6/982.7 (×103) and 1333.3 (×103) could be modified species of CAP-tricta/tetractamer and the octadecamer. For the first time, the NMD is applied to detect biologically complex macromolecular protein assemblies. Hence, this technology overcomes the limitations of conventional TOF-detectors and increases the analytical range of MALDI-TOF. This technology will be a future alternative for the structural analysis of intact virus capsids that will complement other MS-based techniques such as native mass spectrometry.
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Affiliation(s)
- H C Shin
- Department of Material Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, WI 53706, United States
| | - D Deterra
- Center for Hybrid Nanostructures (CHyN), Institute of Nanostructure and Solid State Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - J Park
- Department of Electrical Engineering, Kyungpook National University, Daegu, Republic of Korea
| | - H Kim
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, United States
| | - M Nishikiori
- Morgridge Institute for Research, University of Wisconsin-Madison, 330 N Orchard Street, Madison, WI 53715, United States
| | - Ch Uetrecht
- Heinrich Pette Institute - Leibniz Institute for Experimental Virology, Martinistr. 52, 20251, Hamburg & European XFEL GmbH, Notkestraße 85, 22607 Hamburg, Germany
| | - P G Ahlquist
- Morgridge Institute for Research, University of Wisconsin-Madison, 330 N Orchard Street, Madison, WI 53715, United States; University of Wisconsin-Madison, School of Medicine and Public Health, McArdle Laboratory for Cancer Research, 1111 Highland Avenue, Madison, WI 53705-2275, United States
| | - M Arbulu
- CIC-nanoGUNE, Tolosa Hiribidea 76, 20018 Donostia - San Sebastian, Spain.
| | - R H Blick
- Department of Material Science and Engineering, University of Wisconsin-Madison, 1509 University Avenue, Madison, WI 53706, United States; Center for Hybrid Nanostructures (CHyN), Institute of Nanostructure and Solid State Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany; Department of Electrical and Computer Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, United States; CIC-nanoGUNE, Tolosa Hiribidea 76, 20018 Donostia - San Sebastian, Spain
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Skriba A, Havlicek V. Mass spectrometry imaging of illicit drugs in latent fingerprints by matrix-free and matrix-assisted desorption/ionization techniques. Eur J Mass Spectrom (Chichester) 2018; 24:124-128. [PMID: 29232991 DOI: 10.1177/1469066717728007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Compared with classical matrix-assisted laser-desorption ionization mass spectrometry (MALDI), the matrix free-based strategies generate a cleaner background, without significant noise or interference coming from an applied matrix, which is beneficial for the analysis of small molecules, such as drugs of abuse. In this work, we probed the detection efficiency of methamphetamine, heroin and cocaine in nanostructure-assisted laser desorption-ionization (NALDI) and desorption electrospray ionization and compared the sensitivity of these two matrix-free tools with a standard MALDI mass spectrometry experiment. In a typical mass spectrometry imaging (MSI) setup, papillary line latent fingerprints were recorded as a mixture a common skin fatty acid or interfering cosmetics with a drug. In a separate experiment, all drugs (1 µL of 1 μM standard solution) were detected by all three ionization techniques on a target. In the case of cocaine and heroin, NALDI mass spectrometry was the most sensitive and revealed signals even from 0.1 μM solution. The drug/drug contaminant (fatty acid or cosmetics) MSI approach could be used by law enforcement personnel to confirm drug abusers of having come into contact with the suspected drug by use of fingerprint scans at time of apprehension which can aid in reducing the work of lab officials.
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Affiliation(s)
- Anton Skriba
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the CAS, Prague, Czech Republic
| | - Vladimir Havlicek
- Laboratory of Molecular Structure Characterization, Institute of Microbiology of the CAS, Prague, Czech Republic
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LaBonia GJ, Ludwig KR, Mousseau CB, Hummon AB. iTRAQ Quantitative Proteomic Profiling and MALDI-MSI of Colon Cancer Spheroids Treated with Combination Chemotherapies in a 3D Printed Fluidic Device. Anal Chem 2018; 90:1423-1430. [PMID: 29227110 PMCID: PMC5820028 DOI: 10.1021/acs.analchem.7b04969] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
For a patient with metastatic colorectal cancer there are limited clinical options aside from chemotherapy. Unfortunately, the development of new chemotherapeutics is a long and costly process. New methods are needed to identify promising drug candidates earlier in the drug development process. Most chemotherapies are administered to patients in combinations. Here, an in vitro platform is used to assess the penetration and metabolism of combination chemotherapies in three-dimensional colon cancer cell cultures, or spheroids. Colon carcinoma HCT 116 cells were cultured and grown into three-dimensional cell culture spheroids. These spheroids were then dosed with a common combination chemotherapy, FOLFIRI (folinic acid, 5-fluorouracil, and irinotecan) in a 3D printed fluidic device. This fluidic device allows for the dynamic treatment of spheroids across a semipermeable membrane. Following dosing, the spheroids were harvested for quantitative proteomic profiling to examine the effects of the combination chemotherapy on the colon cancer cells. Spheroids were also imaged to assess the spatial distribution of administered chemotherapeutics and metabolites with MALDI-imaging mass spectrometry. Following treatment, we observed penetration of folinic acid to the core of spheroids and metabolism of the drug in the outer proliferating region of the spheroid. Proteomic changes identified included an enrichment of several cancer-associated pathways. This innovative dosing device, along with the proteomic evaluation with iTRAQ-MS/MS, provides a robust platform that could have a transformative impact on the preclinical evaluation of drug candidates. This system is a high-throughput and cost-effective approach to examine novel drugs and drug combinations prior to animal testing.
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MESH Headings
- Antineoplastic Agents/pharmacology
- Cell Culture Techniques/methods
- Colonic Neoplasms/drug therapy
- Colonic Neoplasms/metabolism
- Drug Screening Assays, Antitumor/instrumentation
- Drug Screening Assays, Antitumor/methods
- Equipment Design
- HCT116 Cells
- High-Throughput Screening Assays/instrumentation
- High-Throughput Screening Assays/methods
- Humans
- Microfluidic Analytical Techniques/instrumentation
- Microfluidic Analytical Techniques/methods
- Printing, Three-Dimensional
- Proteomics/instrumentation
- Proteomics/methods
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/instrumentation
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods
- Spheroids, Cellular/drug effects
- Spheroids, Cellular/metabolism
- Tumor Cells, Cultured
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Affiliation(s)
- Gabriel J. LaBonia
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
- Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Katelyn R. Ludwig
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
- Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556, USA
| | - C. Bruce Mousseau
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
- Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Amanda B. Hummon
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
- Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556, USA
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Abstract
Rapid detection and identification of microorganisms is a challenging and important aspect in a wide range of fields, from medical to industrial, affecting human lives. Unfortunately, classical methods of microorganism identification are based on time-consuming and labor-intensive approaches. Screening techniques require the rapid and cheap grouping of bacterial isolates; however, modern bioanalytics demand comprehensive bacterial studies at a molecular level. Modern approaches for the rapid identification of bacteria use molecular techniques, such as 16S ribosomal RNA gene sequencing based on polymerase chain reaction or electromigration, especially capillary zone electrophoresis and capillary isoelectric focusing. However, there are still several challenges with the analysis of microbial complexes using electromigration technology, such as uncontrolled aggregation and/or adhesion to the capillary surface. Thus, an approach using capillary electrophoresis of microbial aggregates with UV and matrix-assisted laser desorption ionization time-of-flight MS detection is presented.
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Affiliation(s)
- Bogusław Buszewski
- Nicolaus Copernicus University, Faculty of Chemistry, Department of Environmental Chemistry and Bioanalytics, Gagarina 7, 87-100 Torun, Poland; Nicolaus Copernicus University, Interdisciplinary Centre of Modern Technology, Wileńska 4, 87-100 Torun, Poland
| | - Agnieszka Rogowska
- Nicolaus Copernicus University, Faculty of Chemistry, Department of Environmental Chemistry and Bioanalytics, Gagarina 7, 87-100 Torun, Poland; Nicolaus Copernicus University, Interdisciplinary Centre of Modern Technology, Wileńska 4, 87-100 Torun, Poland
| | - Paweł Pomastowski
- Nicolaus Copernicus University, Faculty of Chemistry, Department of Environmental Chemistry and Bioanalytics, Gagarina 7, 87-100 Torun, Poland; Nicolaus Copernicus University, Interdisciplinary Centre of Modern Technology, Wileńska 4, 87-100 Torun, Poland
| | - Michał Złoch
- Nicolaus Copernicus University, Faculty of Chemistry, Department of Environmental Chemistry and Bioanalytics, Gagarina 7, 87-100 Torun, Poland; Nicolaus Copernicus University, Interdisciplinary Centre of Modern Technology, Wileńska 4, 87-100 Torun, Poland
| | - Viorica Railean-Plugaru
- Nicolaus Copernicus University, Faculty of Chemistry, Department of Environmental Chemistry and Bioanalytics, Gagarina 7, 87-100 Torun, Poland; Nicolaus Copernicus University, Interdisciplinary Centre of Modern Technology, Wileńska 4, 87-100 Torun, Poland
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Wilson DA, Young S, Timm K, Novak-Weekley S, Marlowe EM, Madisen N, Lillie JL, Ledeboer NA, Smith R, Hyke J, Griego-Fullbright C, Jim P, Granato PA, Faron ML, Cumpio J, Buchan BW, Procop GW. Multicenter Evaluation of the Bruker MALDI Biotyper CA System for the Identification of Clinically Important Bacteria and Yeasts. Am J Clin Pathol 2017; 147:623-631. [PMID: 28505220 DOI: 10.1093/ajcp/aqw225] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVES A report on the multicenter evaluation of the Bruker MALDI Biotyper CA System (MBT-CA; Bruker Daltonics, Billerica, MA) for the identification of clinically important bacteria and yeasts. METHODS In total, 4,399 isolates of medically important bacteria and yeasts were assessed in the MBT-CA. These included 2,262 aerobic gram-positive (AGP) bacteria, 792 aerobic gram-negative (AGN) bacteria 530 anaerobic (AnA) bacteria, and 815 yeasts (YSTs). Three processing methods were assesed. RESULTS Overall, 98.4% (4,329/4,399) of all bacterial and yeast isolates were correctly identified to the genus and species/species complex level, and 95.7% of isolates were identified with a high degree of confidence. The percentage correctly identified and the percentage identified correctly with a high level of confidence, respectively, were as follows: AGP bacteria (98.6%/96.5%), AGN bacteria (98.5%/96.8%), AnA bacteria (98.5%/97.4%), and YSTs (97.8%/87.6%). The extended direct transfer method was only minimally superior to the direct transfer method for bacteria (89.9% vs 86.8%, respectively) but significantly superior for yeast isolates (74.0% vs 48.9%, respectively). CONCLUSIONS The Bruker MALDI Biotyper CA System accurately identifies most clinically important bacteria and yeasts and has optional processing methods to improve isolate characterization.
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Affiliation(s)
| | - Stephen Young
- Tricore Reference Laboratories, Albuquerque, NM
- Department of Pathology, The University of New Mexico Health Sciences Center, Albuquerque
| | - Karen Timm
- Tricore Reference Laboratories, Albuquerque, NM
| | - Susan Novak-Weekley
- Kaiser Permanente Southern California Permanente Medical Group Regional Reference Laboratories, North Hollywood, CA
| | - Elizabeth M Marlowe
- Kaiser Permanente Southern California Permanente Medical Group Regional Reference Laboratories, North Hollywood, CA
| | | | | | - Nathan A Ledeboer
- Wisconsin Diagnostic Laboratory, Milwaukee
- Medical College of Wisconsin, Milwaukee
| | | | - Josh Hyke
- Wisconsin Diagnostic Laboratory, Milwaukee
| | | | | | - Paul A Granato
- Laboratory Alliance of Central New York, Fayetteville
- SUNY Upstate Medical University, Syracuse, NY
| | | | - Joven Cumpio
- Kaiser Permanente Southern California Permanente Medical Group Regional Reference Laboratories, North Hollywood, CA
| | - Blake W Buchan
- Wisconsin Diagnostic Laboratory, Milwaukee
- Medical College of Wisconsin, Milwaukee
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39
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2011-2012. Mass Spectrom Rev 2017; 36:255-422. [PMID: 26270629 DOI: 10.1002/mas.21471] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Abstract
This review is the seventh update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2012. General aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, and fragmentation are covered in the first part of the review and applications to various structural types constitute the remainder. The main groups of compound are oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. Also discussed are medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2015 Wiley Periodicals, Inc. Mass Spec Rev 36:255-422, 2017.
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Affiliation(s)
- David J Harvey
- Department of Biochemistry, Oxford Glycobiology Institute, University of Oxford, Oxford, OX1 3QU, UK
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40
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Hamilton JS, Aguilar R, Petros RA, Verbeck GF. DAPNe with micro-capillary separatory chemistry-coupled to MALDI-MS for the analysis of polar and non-polar lipid metabolism in one cell. J Am Soc Mass Spectrom 2017; 28:918-928. [PMID: 28251574 DOI: 10.1007/s13361-017-1623-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 01/27/2017] [Accepted: 01/31/2017] [Indexed: 06/06/2023]
Abstract
The cellular metabolome is considered to be a representation of cellular phenotype and cellular response to changes to internal or external events. Methods to expand the coverage of the expansive physiochemical properties that makeup the metabolome currently utilize multi-step extractions and chromatographic separations prior to chemical detection, leading to lengthy analysis times. In this study, a single-step procedure for the extraction and separation of a sample using a micro-capillary as a separatory funnel to achieve analyte partitioning within an organic/aqueous immiscible solvent system is described. The separated analytes are then spotted for MALDI-MS imaging and distribution ratios are calculated. Initially, the method is applied to standard mixtures for proof of partitioning. The extraction of an individual cell is non-reproducible; therefore, a broad chemical analysis of metabolites is necessary and will be illustrated with the one-cell analysis of a single Snu-5 gastric cancer cell taken from a cellular suspension. The method presented here shows a broad partitioning dynamic range as a single-step method for lipid analysis demonstrating a decrease in ion suppression often present in MALDI analysis of lipids. Graphical Abstract ᅟ.
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Affiliation(s)
- Jason S Hamilton
- Department of Chemistry, University of North Texas, Denton, TX, USA
| | - Roberto Aguilar
- Department of Chemistry, University of North Texas, Denton, TX, USA
| | - Robby A Petros
- Department of Chemistry, Texas Women's Univeristy, Denton, TX, USA
| | - Guido F Verbeck
- Department of Chemistry, University of North Texas, Denton, TX, USA.
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41
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Feenstra AD, Dueñas ME, Lee YJ. Five Micron High Resolution MALDI Mass Spectrometry Imaging with Simple, Interchangeable, Multi-Resolution Optical System. J Am Soc Mass Spectrom 2017; 28:434-442. [PMID: 28050871 DOI: 10.1007/s13361-016-1577-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/17/2016] [Accepted: 12/08/2016] [Indexed: 05/18/2023]
Abstract
High-spatial resolution mass spectrometry imaging (MSI) is crucial for the mapping of chemical distributions at the cellular and subcellular level. In this work, we improved our previous laser optical system for matrix-assisted laser desorption ionization (MALDI)-MSI, from ~9 μm practical laser spot size to a practical laser spot size of ~4 μm, thereby allowing for 5 μm resolution imaging without oversampling. This is accomplished through a combination of spatial filtering, beam expansion, and reduction of the final focal length. Most importantly, the new laser optics system allows for simple modification of the spot size solely through the interchanging of the beam expander component. Using 10×, 5×, and no beam expander, we could routinely change between ~4, ~7, and ~45 μm laser spot size, in less than 5 min. We applied this multi-resolution MALDI-MSI system to a single maize root tissue section with three different spatial resolutions of 5, 10, and 50 μm and compared the differences in imaging quality and signal sensitivity. We also demonstrated the difference in depth of focus between the optical systems with 10× and 5× beam expanders. Graphical Abstract ᅟ.
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Affiliation(s)
- Adam D Feenstra
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
- Ames Laboratory-US DOE, Ames, IA, 50011, USA
| | - Maria Emilia Dueñas
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
- Ames Laboratory-US DOE, Ames, IA, 50011, USA
| | - Young Jin Lee
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA.
- Ames Laboratory-US DOE, Ames, IA, 50011, USA.
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42
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Wang S, Xiao C, Li Y, Ling L, Chen X, Guo X. A Surface Pattern on MALDI Steel Plate for One-Step In-Situ Self-Desalting and Enrichment of Peptides/Proteins. J Am Soc Mass Spectrom 2017; 28:428-433. [PMID: 28058591 DOI: 10.1007/s13361-016-1584-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/30/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
We report a novel strategy to achieve simultaneous one-step in-situ self-desalting and enrichment (OISE) of peptides/proteins on a facilely fabricated patterned MALDI steel plate with a circular paraffin-steel-polystyrene structure. The OISE plate could efficiently segregate salts from both analytes and matrices while retaining both analyte and matrix concentrate, and facilitating them to form homogeneous co-crystals on the centrally located polystyrene pattern. With the OISE plate, high quality and reproducible spectra could be obtained for low abundance peptides even in the presence of high salt concentrations (200 mM NH4HCO3, 1 M NaCl, or 400 mM urea). Using this strategy, a significant sensitivity enhancement was gained over traditional MALDI plate. The practical utility of this method was further demonstrated by the successful profiling of BSA digests and human serum. Graphical Abstract ᅟ.
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Affiliation(s)
- Sheng Wang
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
| | - Ying Li
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Ling Ling
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Xinhua Guo
- College of Chemistry, Jilin University, Changchun, 130012, China.
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43
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Engel NY, Weiss VU, Marchetti-Deschmann M, Allmaier G. nES GEMMA Analysis of Lectins and Their Interactions with Glycoproteins - Separation, Detection, and Sampling of Noncovalent Biospecific Complexes. J Am Soc Mass Spectrom 2017; 28:77-86. [PMID: 27644941 PMCID: PMC5174143 DOI: 10.1007/s13361-016-1483-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/24/2016] [Accepted: 08/13/2016] [Indexed: 06/06/2023]
Abstract
In order to better understand biological events, lectin-glycoprotein interactions are of interest. The possibility to gather more information than the mere positive or negative response for interactions brought mass spectrometry into the center of many research fields. The presented work shows the potential of a nano-electrospray gas-phase electrophoretic mobility molecular analyzer (nES GEMMA) to detect weak, noncovalent, biospecific interactions besides still unbound glycoproteins and unreacted lectins without prior liquid phase separation. First results for Sambucus nigra agglutinin, concanavalin A, and wheat germ agglutinin and their retained noncovalent interactions with glycoproteins in the gas phase are presented. Electrophoretic mobility diameters (EMDs) were obtained by nES GEMMA for all interaction partners correlating very well with molecular masses determined by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) of the individual molecules. Moreover, EMDs measured for the lectin-glycoprotein complexes were in good accordance with theoretically calculated mass values. Special focus was laid on complex formation for different lectin concentrations and binding specificities to evaluate the method with respect to results obtained in the liquid phase. The latter was addressed by capillary electrophoresis on-a-chip (CE-on-a-chip). Of exceptional interest was the fact that the formed complexes could be sampled according to their size onto nitrocellulose membranes after gas-phase separation. Subsequent immunological investigation further proved that the collected complex actually retained its native structure throughout nES GEMMA analysis and sampling. Graphical Abstract ᅟ.
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Affiliation(s)
- Nicole Y Engel
- Institute of Chemical Technologies and Analytics, TU Wien (Vienna University of Technology), Getreidemarkt 9/164-IAC, A-1060, Vienna, Austria
| | - Victor U Weiss
- Institute of Chemical Technologies and Analytics, TU Wien (Vienna University of Technology), Getreidemarkt 9/164-IAC, A-1060, Vienna, Austria
| | - Martina Marchetti-Deschmann
- Institute of Chemical Technologies and Analytics, TU Wien (Vienna University of Technology), Getreidemarkt 9/164-IAC, A-1060, Vienna, Austria
| | - Günter Allmaier
- Institute of Chemical Technologies and Analytics, TU Wien (Vienna University of Technology), Getreidemarkt 9/164-IAC, A-1060, Vienna, Austria.
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44
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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. J Am Soc Mass Spectrom 2017; 28:136-144. [PMID: 27655354 PMCID: PMC5177505 DOI: 10.1007/s13361-016-1501-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Abstract
Whole-cell MALDI-TOF has become a robust and widely used tool to quickly identify any pathogen. In addition to being routinely used in hospitals, it is also useful for low cost dereplication in large scale screening procedures of new environmental isolates for environmental biotechnology or taxonomical applications. Here, I describe how specific biomarkers can be defined using shotgun proteomics and whole-cell MALDI-TOF mass spectrometry. Based on MALDI-TOF spectra recorded on a given set of pathogens with internal calibrants, m/z values of interest are extracted. The proteins which contribute to these peaks are deduced from label-free shotgun proteomics measurements carried out on the same sample. Quantitative information based on the spectral count approach allows ranking the most probable candidates. Proteogenomic approaches help to define whether these proteins give the same m/z values along the whole taxon under consideration or result in heterogeneous lists. These specific biomarkers nicely complement conventional profiling approaches and may help to better define groups of organisms, for example at the subspecies level.
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Affiliation(s)
- Jean Armengaud
- CEA-Marcoule, DRF/JOLIOT/DMTS/SPI/Li2D, Laboratory "Innovative Technologies for Detection and Diagnostics", BP 17171, 30200, Bagnols-sur-Cèze, France.
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Devereaux ZJ, Reynolds CA, Fischer JL, Foley CD, DeLeeuw JL, Wager-Miller J, Narayan SB, Mackie K, Trimpin S. Matrix-Assisted Ionization on a Portable Mass Spectrometer: Analysis Directly from Biological and Synthetic Materials. Anal Chem 2016; 88:10831-10836. [PMID: 26938428 PMCID: PMC10614167 DOI: 10.1021/acs.analchem.6b00304] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Matrix-assisted ionization (MAI)-mass spectrometry (MS) eliminates the need for high voltage, a heat source, lasers, and compressed gases in the ionization process and uses minimal solvents in sample preparation, thus making MAI ideal for field-portable mass spectrometers. The broad applicability of MAI is demonstrated by simple, rapid, and robust positive and negative detection mode analyses of low and high mass compounds including some pesticides, dyes, drugs, lipids, and proteins (186 Da to 8.5 kDa) from various materials including urine, biological tissue sections, paper, and plant material on a low pumping capacity, single-quadrupole mass spectrometer. Different sample introduction methods are applicable, including the use of a pipet tip or glass melting point tube, allowing integration of sample preparation with sample introduction for increased analytical utility and ease of operation, even when sampling directly from surfaces.
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Affiliation(s)
- Zachary J. Devereaux
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Christian A. Reynolds
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Joshua L. Fischer
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Casey D. Foley
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Jessica L. DeLeeuw
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - James Wager-Miller
- Gill Center for Biomolecular Science, Indiana University, 702 N. Walnut Grove Avenue, Bloomington, Indiana 47405, United States
| | - Srinivas B. Narayan
- Detroit Medical Center: Detroit Hospital, 4201 St. Antoine Street, Detroit, Michigan 48201, United States
| | - Ken Mackie
- Gill Center for Biomolecular Science, Indiana University, 702 N. Walnut Grove Avenue, Bloomington, Indiana 47405, United States
| | - Sarah Trimpin
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
- Cardiovascular Research Institute, Wayne State University School of Medicine, 421 E. Canfield Street, Detroit, Michigan 48202, United States
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Fang X, Zhang K, Yang P, Qiao L, Liu B. Sensitive and fast beverage/fruit antioxidant evaluation by TiO2 -Au/graphene nanocomposites coupled with MALDI-MS. Rapid Commun Mass Spectrom 2016; 30 Suppl 1:128-132. [PMID: 27539427 DOI: 10.1002/rcm.7617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
RATIONALE Because the ratio of tripeptide glutathione (GSH) to glutathione disulphide (GSSG) is tightly associated with the oxidative stress and antioxidant level of an organism, it is often considered to be an indicator of the redox states of cells. Therefore, developing an integrated protocol for rapid, efficient, and low-cost detection of GSH to measure antioxidant ability is of significant importance for the diagnosis of oxidative stress-associated diseases. METHODS TiO2 -Au/graphene nanocomposites were synthesized to integrate the characteristics of graphene as matrix for MALDI-MS, gold NPs as selective probes for GSH and the photocatalytic property of TiO2 . Under UV-visible (UV-Vis) light irradiation, OH can be produced by the TiO2 -Au/G composites, which can oxidize GSH to form GSSG. When various antioxidants are introduced into the aforementioned system, OH can be scavenged, thereby leaving part of GSH in its reductive format. Based on the ratio of GSH/GSSG, the antioxidative capability of various beverages and fruits can be determined. RESULTS TiO2 -Au/G composites were employed to enrich GSH, where 0.01 mg/mL GSH can be efficiently extracted by the nanocomposites from aqueous solution and detected by MS with high signal-to-noise ratio. The proposed strategy was applied to evaluate three often-used antioxidants: Vitamin C, Vitamin E, and β-carotene; and demonstrated that the antioxidative ability of VC is the strongest. To further evaluate the feasibility of the proposed strategy for antioxidative ability evaluation of complex sample, commercial juices and fresh fruit were also studied. CONCLUSIONS A novel strategy for sensitive and fast characterization of the antioxidative ability of various beverages and fruits was developed based on TiO2 -Au/G nanocomposites coupled with MALDI-MS. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Xiaoni Fang
- Department of Chemistry, Institutes of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China
| | - Kun Zhang
- Department of Chemistry, Institutes of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China
| | - Pengyuan Yang
- Department of Chemistry, Institutes of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China
- Shanghai Stomatological Hospital, Fudan University, Shanghai, 200433, China
| | - Liang Qiao
- Department of Chemistry, Institutes of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China
- Shanghai Stomatological Hospital, Fudan University, Shanghai, 200433, China
| | - Baohong Liu
- Department of Chemistry, Institutes of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China
- Shanghai Stomatological Hospital, Fudan University, Shanghai, 200433, China
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Yanagihara K. [Developing Diagnostic Tests for Infectious Diseases -MALDI-TOF MS and Genetic Diagnosis -]. Rinsho Byori 2016; 64:942-953. [PMID: 30609337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inappropriate antimicrobial therapy is associated with a worsening prognosis, and the increasing prevalence of multidrug-resistance organisms has led to significant threats to clinical practice. Bacterial identification and antimicrobial susceptibility testing (AST) are crucial tools for the treatment of bacterial infections. However, information regarding bacterial identification or AST is generally unavailable for clinical decisions regarding treatment for at least two days. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and genetic diagnosis are expected to be newer rapid diagnostic tests for infectious diseases, which contribute to the decision regarding appropriate antimicrobial agents. [Review].
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Yang T, Gao D, Jin F, Jiang Y, Liu H. Surface-printed microdot array chips coupled with matrix-assisted laser desorption/ionization mass spectrometry for high-throughput single-cell patterning and phospholipid analysis. Rapid Commun Mass Spectrom 2016; 30 Suppl 1:73-9. [PMID: 27539419 DOI: 10.1002/rcm.7628] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
RATIONALE Single-cell analysis is very important in several research fields for the heterogeneity of individual cells, which has been well accepted. However, restricted by the size and low content of a single cell, current studies have encountered challenges in high-throughput, high-space resolution and sensitivity, and multicomponent analysis. A methodology of a surface-printed microdot array chip coupled with matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) is presented in this study for high-throughput single-cell patterning and phospholipid analysis. METHODS The poly-L-lysine (PLL) used as ink molecule was printed on an oxygen plasma processed indium tin oxide (ITO)-coated glass slide to form a microdot array by micro-contact printing technology. The cell array was then formed on the PLL microarray through electrostatic adsorption force. 9-Aminoacridine (9-AA) matrix was applied on the cell array before it was analyzed by MALDI-TOF MS. MALDI mass spectrometry imaging (MALDI-MSI) was then used for high-throughput, quick measurement, and multicomponent analysis of the cell array. RESULTS The single-cell capture efficiency of the cell array formed on the PLL microarray was about 40%. Twelve phospholipids were detected at the single-cell level, and the structures were further confirmed by MS/MS. The MALDI-MSI of selected ions showed a conformity with the cell array. The relative signal intensity data of selected ions were extracted from every pixel in the image within several minutes. The heterogeneity between individual cells was revealed from the relative signal intensity of phospholipids in 1-3 cells. CONCLUSIONS Compared to the existing related approaches, high-throughput, quick measurement, and multicomponent single-cell analysis have been realized by our method. Through different ink molecules used for micro-contact printing, the established platform could have the potential to capture and analyze specific cells. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ti Yang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Dan Gao
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Feng Jin
- Neptunus Pharmaceutical Technology Center, Shenzhen, 518057, China
| | - Yuyang Jiang
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
- School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Hongxia Liu
- Key Laboratory of Metabolomics at Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
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Hou J, Chen S, Cao C, Liu H, Xiong C, Zhang N, He Q, Song W, Nie Z. Application of flowerlike MgO for highly sensitive determination of lead via matrix-assisted laser desorption/ionization mass spectrometry. Rapid Commun Mass Spectrom 2016; 30 Suppl 1:208-216. [PMID: 27539440 DOI: 10.1002/rcm.7637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
RATIONALE Matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) is a high-throughput method to achieve fast and accurate identification of lead (Pb) exposure, but is seldom used because of low ionization efficiency and insufficient sensitivity. Nanomaterials applied in MS are a promising technique to overcome the obstacles of MALDI. METHODS Flowerlike MgO nanostructures are applied for highly sensitive lead profiling in real samples. They can be used in two ways: (a) MgO is mixed with N-naphthylethylenediamine dihydrochloride (NEDC) as a novel matrix MgO/NEDC; (b) MgO is applied as an absorbent to enrich Pb ions in very dilute solution. RESULTS The signal intensities of lead by MgO/NEDC were ten times higher than the NEDC matrix. It also shows superior anti-interference ability when analyzing 10 μmol/L Pb ions in the presence of organic substances or interfering metal ions. By applying MgO as adsorbent, the LOD of lead before enrichment is 1 nmol/L. Blood lead test can be achieved using this enrichment process. Besides, MgO can play the role of internal standard to achieve quantitative analysis. CONCLUSIONS Flowerlike MgO nanostructures were applied for highly sensitive lead profiling in real samples. The method is helpful to prevent Pb contamination in a wide range. Further, the combination of MgO with MALDI MS could inspire more nanomaterials being applied in highly sensitive profiling of pollutants. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Jian Hou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Suming Chen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Changyan Cao
- Beijing National Laboratory for Molecular Science, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Huihui Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Caiqiao Xiong
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ning Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Qing He
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Weiguo Song
- Beijing National Laboratory for Molecular Science, Laboratory of Molecular Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zongxiu Nie
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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