401
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Nemes P, Vertes A. Ambient mass spectrometry for in vivo local analysis and in situ molecular tissue imaging. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2011.11.006] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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402
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Lee YJ, Perdian DC, Song Z, Yeung ES, Nikolau BJ. Use of mass spectrometry for imaging metabolites in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2012; 70:81-95. [PMID: 22449044 DOI: 10.1111/j.1365-313x.2012.04899.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
We discuss and illustrate recent advances that have been made to image the distribution of metabolites among cells and tissues of plants using different mass spectrometry technologies. These technologies include matrix-assisted laser desorption ionization, desorption electrospray ionization, and secondary ion mass spectrometry. These are relatively new technological applications of mass spectrometry and they are providing highly spatially resolved data concerning the cellular distribution of metabolites. We discuss the advantages and limitations of each of these mass spectrometric methods, and provide a description of the technical barriers that are currently limiting the technology to the level of single-cell resolution. However, we anticipate that advances in the next few years will increase the resolving power of the technology to provide unprecedented data on the distribution of metabolites at the subcellular level, which will increase our ability to decipher new knowledge concerning the spatial organization of metabolic processes in plants.
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Affiliation(s)
- Young Jin Lee
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA
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403
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Creran B, Yan B, Moyano DF, Gilbert MM, Vachet RW, Rotello VM. Laser desorption ionization mass spectrometric imaging of mass barcoded gold nanoparticles for security applications. Chem Commun (Camb) 2012; 48:4543-5. [PMID: 22466433 DOI: 10.1039/c2cc30499f] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Patterns created by the inkjet printing of functionalized gold nanoparticles (NPs) can be selectively detected by laser desorption/ionization imaging mass spectrometry (LDI-IMS). These patterns can only be visualized by mass, providing a robust yet tunable system for potential anti-counterfeiting applications.
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Affiliation(s)
- Brian Creran
- 710 North Pleasant St, Amherst, Massachusetts, USA
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404
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Lanni EJ, Rubakhin SS, Sweedler JV. Mass spectrometry imaging and profiling of single cells. J Proteomics 2012; 75:5036-5051. [PMID: 22498881 DOI: 10.1016/j.jprot.2012.03.017] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 03/08/2012] [Accepted: 03/13/2012] [Indexed: 11/25/2022]
Abstract
Mass spectrometry imaging and profiling of individual cells and subcellular structures provide unique analytical capabilities for biological and biomedical research, including determination of the biochemical heterogeneity of cellular populations and intracellular localization of pharmaceuticals. Two mass spectrometry technologies-secondary ion mass spectrometry (SIMS) and matrix assisted laser desorption/ionization mass spectrometry (MALDI MS)-are most often used in micro-bioanalytical investigations. Recent advances in ion probe technologies have increased the dynamic range and sensitivity of analyte detection by SIMS, allowing two- and three-dimensional localization of analytes in a variety of cells. SIMS operating in the mass spectrometry imaging (MSI) mode can routinely reach spatial resolutions at the submicron level; therefore, it is frequently used in studies of the chemical composition of subcellular structures. MALDI MS offers a large mass range and high sensitivity of analyte detection. It has been successfully applied in a variety of single-cell and organelle profiling studies. Innovative instrumentation such as scanning microprobe MALDI and mass microscope spectrometers enables new subcellular MSI measurements. Other approaches for MS-based chemical imaging and profiling include those based on near-field laser ablation and inductively-coupled plasma MS analysis, which offer complementary capabilities for subcellular chemical imaging and profiling.
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Affiliation(s)
- Eric J Lanni
- Department of Chemistry and the Beckman Institute of Science and Technology, University of Illinois, Urbana IL 61801, USA
| | - Stanislav S Rubakhin
- Department of Chemistry and the Beckman Institute of Science and Technology, University of Illinois, Urbana IL 61801, USA
| | - Jonathan V Sweedler
- Department of Chemistry and the Beckman Institute of Science and Technology, University of Illinois, Urbana IL 61801, USA.
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405
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Jungmann JH, Heeren RMA. Emerging technologies in mass spectrometry imaging. J Proteomics 2012; 75:5077-5092. [PMID: 22469858 DOI: 10.1016/j.jprot.2012.03.022] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 03/13/2012] [Accepted: 03/14/2012] [Indexed: 12/11/2022]
Abstract
Mass spectrometry imaging (MSI) as an analytical tool for bio-molecular and bio-medical research targets accurate compound localization and identification. In terms of dedicated instrumentation, this translates into the demand for more detail in the image dimension (spatial resolution) and in the spectral dimension (mass resolution and accuracy), preferably combined in one instrument. At the same time, large area biological tissue samples require fast acquisition schemes, instrument automation and a robust data infrastructure. This review discusses the analytical capabilities of an "ideal" MSI instrument for bio-molecular and bio-medical molecular imaging. The analytical attributes of such an ideal system are contrasted with technological and methodological challenges in MSI. In particular, innovative instrumentation for high spatial resolution imaging in combination with high sample throughput is discussed. Detector technology that targets various shortcomings of conventional imaging detector systems is highlighted. The benefits of accurate mass analysis, high mass resolving power, additional separation strategies and multimodal three-dimensional data reconstruction algorithms are discussed to provide the reader with an insight in the current technological advances and the potential of MSI for bio-medical research.
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Affiliation(s)
- Julia H Jungmann
- FOM-Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Ron M A Heeren
- FOM-Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands.
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406
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Matusch A, Fenn LS, Depboylu C, Klietz M, Strohmer S, McLean JA, Becker JS. Combined elemental and biomolecular mass spectrometry imaging for probing the inventory of tissue at a micrometer scale. Anal Chem 2012; 84:3170-8. [PMID: 22413784 DOI: 10.1021/ac203112c] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Several complementary mass spectrometric imaging techniques allow mapping of various analytes within biological tissue sections. Laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) quantitatively detects elements and isotopes with very high sensitivity and a particularly high dynamical range. Matrix-assisted laser desorption/ionization ion mobility mass spectrometry (MALDI-IM-MS) allows a pixel-by-pixel classification and identification of biomolecules. In order to dispose of the healthy hemisphere as an internal calibrant in addition to routinely used external standards, adjacent brain sections of mice with a unilateral 6-OHDA lesion of the medial forebrain bundle were chosen as exemplary samples. We demonstrate a comprehensive way of data acquisition and analysis by coregistering mass spectrometric data on photomicrographs as common reference space and thus providing trimodal spatial information. Registering subsequent planar element maps yielded continuous 3-dimensional data sets. Furthermore, we introduce a correction of MSI data for variable slice thickness applicable to all MSI techniques. In the present case, we observed increased concentrations of iron, manganese, and copper in the lesioned substantia nigra while monounsaturated lipid levels were decreased in the identical region of interest. Our techniques provide new insights into the intricate spatial relationship of morphology and chemistry within tissue.
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Affiliation(s)
- Andreas Matusch
- Department of Neurology, Philipps University, Marburg, Germany
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407
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Mounfield WP, Garrett TJ. Automated MALDI matrix coating system for multiple tissue samples for imaging mass spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:563-569. [PMID: 22234508 DOI: 10.1007/s13361-011-0324-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 12/13/2011] [Accepted: 12/18/2011] [Indexed: 05/31/2023]
Abstract
Uniform matrix deposition on tissue samples for matrix-assisted laser desorption/ionization (MALDI) is key for reproducible analyte ion signals. Current methods often result in nonhomogenous matrix deposition, and take time and effort to produce acceptable ion signals. Here we describe a fully-automated method for matrix deposition using an enclosed spray chamber and spray nozzle for matrix solution delivery. A commercial air-atomizing spray nozzle was modified and combined with solenoid controlled valves and a Programmable Logic Controller (PLC) to control and deliver the matrix solution. A spray chamber was employed to contain the nozzle, sample, and atomized matrix solution stream, and to prevent any interference from outside conditions as well as allow complete control of the sample environment. A gravity cup was filled with MALDI matrix solutions, including DHB in chloroform/methanol (50:50) at concentrations up to 60 mg/mL. Various samples (including rat brain tissue sections) were prepared using two deposition methods (spray chamber, inkjet). A linear ion trap equipped with an intermediate-pressure MALDI source was used for analyses. Optical microscopic examination showed a uniform coating of matrix crystals across the sample. Overall, the mass spectral images gathered from tissues coated using the spray chamber system were of better quality and more reproducible than from tissue specimens prepared by the inkjet deposition method.
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Affiliation(s)
- William P Mounfield
- Department Chemical Engineering, University of Florida, Gainesville, FL 32610, USA
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408
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Fan TWM, Lorkiewicz PK, Sellers K, Moseley HNB, Higashi RM, Lane AN. Stable isotope-resolved metabolomics and applications for drug development. Pharmacol Ther 2012; 133:366-91. [PMID: 22212615 PMCID: PMC3471671 DOI: 10.1016/j.pharmthera.2011.12.007] [Citation(s) in RCA: 151] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 12/06/2011] [Indexed: 12/14/2022]
Abstract
Advances in analytical methodologies, principally nuclear magnetic resonance spectroscopy (NMR) and mass spectrometry (MS), during the last decade have made large-scale analysis of the human metabolome a reality. This is leading to the reawakening of the importance of metabolism in human diseases, particularly cancer. The metabolome is the functional readout of the genome, functional genome, and proteome; it is also an integral partner in molecular regulations for homeostasis. The interrogation of the metabolome, or metabolomics, is now being applied to numerous diseases, largely by metabolite profiling for biomarker discovery, but also in pharmacology and therapeutics. Recent advances in stable isotope tracer-based metabolomic approaches enable unambiguous tracking of individual atoms through compartmentalized metabolic networks directly in human subjects, which promises to decipher the complexity of the human metabolome at an unprecedented pace. This knowledge will revolutionize our understanding of complex human diseases, clinical diagnostics, as well as individualized therapeutics and drug response. In this review, we focus on the use of stable isotope tracers with metabolomics technologies for understanding metabolic network dynamics in both model systems and in clinical applications. Atom-resolved isotope tracing via the two major analytical platforms, NMR and MS, has the power to determine novel metabolic reprogramming in diseases, discover new drug targets, and facilitates ADME studies. We also illustrate new metabolic tracer-based imaging technologies, which enable direct visualization of metabolic processes in vivo. We further outline current practices and future requirements for biochemoinformatics development, which is an integral part of translating stable isotope-resolved metabolomics into clinical reality.
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Affiliation(s)
- Teresa W-M Fan
- Department of Chemistry, University of Louisville, KY 40292, USA.
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409
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Chughtai K, Jiang L, Greenwood TR, Klinkert I, Amstalden van Hove ER, Heeren RMA, Glunde K. Fiducial markers for combined 3-dimensional mass spectrometric and optical tissue imaging. Anal Chem 2012; 84:1817-23. [PMID: 22283706 PMCID: PMC3302962 DOI: 10.1021/ac203373h] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mass spectrometric imaging (MSI) has become widely used in the analysis of a variety of biological surfaces. Biological samples are spatially, morphologically, and metabolically complex. Multimodal molecular imaging is an emerging approach that is capable of dealing with this complexity. In a multimodal approach, different imaging modalities can provide precise information about the local molecular composition of the surfaces. Images obtained by MSI can be coregistered with images obtained by other molecular imaging techniques such as microscopic images of fluorescent protein expression or histologically stained sections. In order to properly coregister images from different modalities, each tissue section must contain points of reference, which are visible in all data sets. Here, we report a newly developed coregistration technique using fiducial markers such as cresyl violet, Ponceau S, and bromophenol blue that possess a combination of optical and molecular properties that result in a clear mass spectrometric signature. We describe these fiducial markers and demonstrate an application that allows accurate coregistration and 3-dimensional reconstruction of serial histological and fluorescent microscopic images with MSI images of thin tissue sections from a breast tumor model.
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Affiliation(s)
- Kamila Chughtai
- FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Lu Jiang
- JHU ICMIC Program, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 212 Traylor Building, 720 Rutland Avenue, Baltimore, MD 21205, USA
| | - Tiffany R. Greenwood
- JHU ICMIC Program, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 212 Traylor Building, 720 Rutland Avenue, Baltimore, MD 21205, USA
| | - Ivo Klinkert
- FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | | | - Ron M. A. Heeren
- FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- The Netherlands Proteomics Centre, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Kristine Glunde
- JHU ICMIC Program, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 212 Traylor Building, 720 Rutland Avenue, Baltimore, MD 21205, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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410
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Horn PJ, Korte AR, Neogi PB, Love E, Fuchs J, Strupat K, Borisjuk L, Shulaev V, Lee YJ, Chapman KD. Spatial mapping of lipids at cellular resolution in embryos of cotton. THE PLANT CELL 2012; 24:622-36. [PMID: 22337917 PMCID: PMC3315237 DOI: 10.1105/tpc.111.094581] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 01/23/2012] [Accepted: 02/01/2012] [Indexed: 05/19/2023]
Abstract
Advances in mass spectrometry (MS) have made comprehensive lipidomics analysis of complex tissues relatively commonplace. These compositional analyses, although able to resolve hundreds of molecular species of lipids in single extracts, lose the original cellular context from which these lipids are derived. Recently, high-resolution MS of individual lipid droplets from seed tissues indicated organelle-to-organelle variation in lipid composition, suggesting that heterogeneity of lipid distributions at the cellular level may be prevalent. Here, we employed matrix-assisted laser desorption/ionization-MS imaging (MALDI-MSI) approaches to visualize lipid species directly in seed tissues of upland cotton (Gossypium hirsutum). MS imaging of cryosections of mature cotton embryos revealed a distinct, heterogeneous distribution of molecular species of triacylglycerols and phosphatidylcholines, the major storage and membrane lipid classes in cotton embryos. Other lipids were imaged, including phosphatidylethanolamines, phosphatidic acids, sterols, and gossypol, indicating the broad range of metabolites and applications for this chemical visualization approach. We conclude that comprehensive lipidomics images generated by MALDI-MSI report accurate, relative amounts of lipid species in plant tissues and reveal previously unseen differences in spatial distributions providing for a new level of understanding in cellular biochemistry.
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Affiliation(s)
- Patrick J. Horn
- Department of Biological Sciences, Center for Plant Lipid Research, University of North Texas, Denton, Texas 76203
| | - Andrew R. Korte
- Department of Chemistry, Iowa State University and Ames Laboratory–U.S. Department of Energy, Ames, Iowa 50011
| | - Purnima B. Neogi
- Department of Biological Sciences, Center for Plant Lipid Research, University of North Texas, Denton, Texas 76203
| | - Ebony Love
- Department of Biological Sciences, Center for Plant Lipid Research, University of North Texas, Denton, Texas 76203
| | - Johannes Fuchs
- Leibniz Institute of Plant Genetics and Crop Research, D-06466 Gatersleben, Germany
| | | | - Ljudmilla Borisjuk
- Leibniz Institute of Plant Genetics and Crop Research, D-06466 Gatersleben, Germany
| | - Vladimir Shulaev
- Department of Biological Sciences, Center for Plant Lipid Research, University of North Texas, Denton, Texas 76203
| | - Young-Jin Lee
- Department of Chemistry, Iowa State University and Ames Laboratory–U.S. Department of Energy, Ames, Iowa 50011
| | - Kent D. Chapman
- Department of Biological Sciences, Center for Plant Lipid Research, University of North Texas, Denton, Texas 76203
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411
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Mach J. Mass spectrometry imaging with single-cell resolution: spatial distribution of lipids in cotton seeds. THE PLANT CELL 2012; 24:371. [PMID: 22345492 PMCID: PMC3315219 DOI: 10.1105/tpc.112.240210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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412
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Chen Q, Wu J, Zhang Y, Lin JM. Qualitative and Quantitative Analysis of Tumor Cell Metabolism via Stable Isotope Labeling Assisted Microfluidic Chip Electrospray Ionization Mass Spectrometry. Anal Chem 2012; 84:1695-701. [DOI: 10.1021/ac300003k] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Qiushui Chen
- Beijing Key Laboratory of Analytical
Methods and Instrumentation,
Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Jing Wu
- Beijing Key Laboratory of Analytical
Methods and Instrumentation,
Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Yandong Zhang
- Beijing Key Laboratory of Analytical
Methods and Instrumentation,
Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Jin-Ming Lin
- Beijing Key Laboratory of Analytical
Methods and Instrumentation,
Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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413
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Affiliation(s)
- Feng Xian
- Department
of Chemistry and
Biochemistry, Florida State University,
95 Chieftain Way, Tallahassee, Florida 32310-4390, United States
| | - Christopher L. Hendrickson
- Department
of Chemistry and
Biochemistry, Florida State University,
95 Chieftain Way, Tallahassee, Florida 32310-4390, United States
- Ion Cyclotron Resonance Program, National High Magnetic Field Laboratory, 1800
East Paul Dirac Drive, Tallahassee, Florida 32310-4005, United States
| | - Alan G. Marshall
- Department
of Chemistry and
Biochemistry, Florida State University,
95 Chieftain Way, Tallahassee, Florida 32310-4390, United States
- Ion Cyclotron Resonance Program, National High Magnetic Field Laboratory, 1800
East Paul Dirac Drive, Tallahassee, Florida 32310-4005, United States
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414
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Pancholi K. A review of imaging methods for measuring drug release at nanometre scale: a case for drug delivery systems. Expert Opin Drug Deliv 2012; 9:203-18. [DOI: 10.1517/17425247.2011.648374] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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415
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Fonville JM, Carter C, Cloarec O, Nicholson JK, Lindon JC, Bunch J, Holmes E. Robust data processing and normalization strategy for MALDI mass spectrometric imaging. Anal Chem 2012; 84:1310-9. [PMID: 22148759 DOI: 10.1021/ac201767g] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) provides localized information about the molecular content of a tissue sample. To derive reliable conclusions from MSI data, it is necessary to implement appropriate processing steps in order to compare peak intensities across the different pixels comprising the image. Here, we review commonly used normalization methods, and propose a rational data processing strategy, for robust evaluation and modeling of MSI data. The approach includes newly developed heuristic methods for selecting biologically relevant peaks and pixels to reduce the size of a data set and remove the influence of the applied MALDI matrix. The methods are demonstrated on a MALDI MSI data set of a sagittal section of rat brain (4750 bins, m/z = 50-1000, 111 × 185 pixels) and the proposed preferred normalization method uses the median intensity of selected peaks, which were determined to be independent of the MALDI matrix. This was found to effectively compensate for a range of known limitations associated with the MALDI process and irregularities in MS image sampling routines. This new approach is relevant for processing of all MALDI MSI data sets, and thus likely to have impact in biomarker profiling, preclinical drug distribution studies, and studies addressing underlying molecular mechanisms of tissue pathology.
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Affiliation(s)
- Judith M Fonville
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Sir Alexander Fleming Building, South Kensington, London SW7 2AZ, United Kingdom
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416
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Laskin J, Heath BS, Roach PJ, Cazares L, Semmes OJ. Tissue imaging using nanospray desorption electrospray ionization mass spectrometry. Anal Chem 2012; 84:141-8. [PMID: 22098105 PMCID: PMC3259225 DOI: 10.1021/ac2021322] [Citation(s) in RCA: 226] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ambient ionization imaging mass spectrometry is uniquely suited for detailed spatially resolved chemical characterization of biological samples in their native environment. However, the spatial resolution attainable using existing approaches is limited by the ion transfer efficiency from the ionization region into the mass spectrometer. Here, we present a first study of ambient imaging of biological samples using nanospray desorption ionization (nano-DESI). Nano-DESI is a new ambient pressure ionization technique that uses minute amounts of solvent confined between two capillaries comprising the nano-DESI probe and the solid analyte for controlled desorption of molecules present on the substrate followed by ionization through self-aspirating nanospray. We demonstrate highly sensitive spatially resolved analysis of tissue samples without sample preparation. Our first proof-of-principle experiments indicate the potential of nano-DESI for ambient imaging with a spatial resolution of better than 12 μm. The significant improvement of the spatial resolution offered by nano-DESI imaging combined with high detection efficiency will enable new imaging mass spectrometry applications in clinical diagnostics, drug discovery, molecular biology, and biochemistry.
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Affiliation(s)
- Julia Laskin
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
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417
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Hu B, Lai YH, So PK, Chen H, Yao ZP. Direct ionization of biological tissue for mass spectrometric analysis. Analyst 2012; 137:3613-9. [DOI: 10.1039/c2an16223g] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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418
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Phan JH, Quo CF, Cheng C, Wang MD. Multiscale integration of -omic, imaging, and clinical data in biomedical informatics. IEEE Rev Biomed Eng 2012; 5:74-87. [PMID: 23231990 PMCID: PMC5859561 DOI: 10.1109/rbme.2012.2212427] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This paper reviews challenges and opportunities in multiscale data integration for biomedical informatics. Biomedical data can come from different biological origins, data acquisition technologies, and clinical applications. Integrating such data across multiple scales (e.g., molecular, cellular/tissue, and patient) can lead to more informed decisions for personalized, predictive, and preventive medicine. However, data heterogeneity, community standards in data acquisition, and computational complexity are big challenges for such decision making. This review describes genomic and proteomic (i.e., molecular), histopathological imaging (i.e., cellular/tissue), and clinical (i.e., patient) data; it includes case studies for single-scale (e.g., combining genomic or histopathological image data), multiscale (e.g., combining histopathological image and clinical data), and multiscale and multiplatform (e.g., the Human Protein Atlas and The Cancer Genome Atlas) data integration. Numerous opportunities exist in biomedical informatics research focusing on integration of multiscale and multiplatform data.
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Affiliation(s)
- John H Phan
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA.
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419
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Tang HW, Wong MYM, Lam W, Cheng YC, Che CM, Ng KM. Molecular histology analysis by matrix-assisted laser desorption/ionization imaging mass spectrometry using gold nanoparticles as matrix. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:3690-6. [PMID: 22468326 DOI: 10.1002/rcm.5281] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Gold nanoparticles (AuNPs) were applied and optimized as matrix for matrix-assisted laser desorption/ionization mass spectrometry analysis of animal tissues, and enabled histological analysis of animal tissues at molecular level by imaging mass spectrometry (IMS). AuNPs were coated on animal tissue in a solvent-free manner via argon ion sputtering. Metabolites, including neurotransmitters, fatty acids and nucleobases, were directly detected from mouse brain tissue. Based on region-specific chemical profiles, fine histological features of mouse brain tissue and heterogeneous regions of tumor tissue were both revealed.
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Affiliation(s)
- Ho-Wai Tang
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong SAR
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420
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Tucker KR, Lanni EJ, Serebryannyy LA, Rubakhin SS, Sweedler JV. Stretched tissue mounting for MALDI mass spectrometry imaging. Anal Chem 2011; 83:9181-5. [PMID: 22017527 PMCID: PMC3229305 DOI: 10.1021/ac201857k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) combines information-rich chemical detection with spatial localization of analytes. For a given instrumental platform and analyte class, the data acquired can represent a compromise between analyte extraction and spatial information. Here, we introduce an improvement to the spatial resolution achievable with MALDI MSI conducted with standard mass spectrometric systems that also reduces analyte migration during matrix application. Tissue is placed directly on a stretchable membrane that, when stretched, fragments the tissue into micrometer-sized pieces. Scanning electron microscopy analysis shows that this process produces fairly homogeneous distributions of small tissue fragments separated and surrounded by areas of hydrophobic membrane surface. MALDI matrix is then applied by either a robotic microspotter or an artist's airbrush. Rat spinal cord samples imaged with an instrumental resolution of 50-250 μm demonstrate lipid distributions with a 5-fold high spatial resolution (a 25-fold increase in pixel density) after stretching compared to tissues that were not stretched.
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Affiliation(s)
- Kevin R. Tucker
- Department of Chemistry and the Beckman Institute, University of Illinois, Urbana, Illinois 61801
| | - Eric J. Lanni
- Department of Chemistry and the Beckman Institute, University of Illinois, Urbana, Illinois 61801
| | - Leonid A. Serebryannyy
- Department of Chemistry and the Beckman Institute, University of Illinois, Urbana, Illinois 61801
| | - Stanislav S. Rubakhin
- Department of Chemistry and the Beckman Institute, University of Illinois, Urbana, Illinois 61801
| | - Jonathan V. Sweedler
- Department of Chemistry and the Beckman Institute, University of Illinois, Urbana, Illinois 61801
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421
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Fernandez-Lima FA, Post J, DeBord JD, Eller MJ, Verkhoturov SV, Della-Negra S, Woods AS, Schweikert EA. Analysis of native biological surfaces using a 100 kV massive gold cluster source. Anal Chem 2011; 83:8448-53. [PMID: 21967684 PMCID: PMC3236644 DOI: 10.1021/ac201481r] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In the present work, the advantages of a new, 100 kV platform equipped with a massive gold cluster source for the analysis of native biological surfaces are shown. Inspection of the molecular ion emission as a function of projectile size demonstrates a secondary ion yield increase of ~100× for 520 keV Au(400)(4+) as compared to 130 keV Au(3)(1+) and 43 keV C(60). In particular, yields of tens of percent of molecular ions per projectile impact for the most abundant components can be observed with the 520 keV Au(400)(4+) probe. A comparison between 520 keV Au(400)(4+) time-of-flight-secondary ion mass spectrometry (TOF-SIMS) and matrix assisted laser desorption ionization-mass spectrometry (MALDI-MS) data showed a similar pattern and similar relative intensities of lipid components across a rat brain sagittal section. The abundant secondary ion yield of analyte-specific ions makes 520 keV Au(400)(4+) projectiles an attractive probe for submicrometer molecular mapping of native surfaces.
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Affiliation(s)
| | - Jeremy Post
- Structural Biology Unit, NIDA IRP, NIH, Baltimore, MD 21224
| | - John D. DeBord
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255
| | - Michael J. Eller
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255
| | | | | | - Amina S. Woods
- Structural Biology Unit, NIDA IRP, NIH, Baltimore, MD 21224
| | - Emile A. Schweikert
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255
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422
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Radioactive holmium acetylacetonate microspheres for interstitial microbrachytherapy: an in vitro and in vivo stability study. Pharm Res 2011; 29:827-36. [PMID: 22068276 PMCID: PMC3281200 DOI: 10.1007/s11095-011-0610-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 10/17/2011] [Indexed: 10/31/2022]
Abstract
PURPOSE The clinical application of holmium acetylacetonate microspheres (HoAcAcMS) for the intratumoral radionuclide treatment of solid malignancies requires a thorough understanding of their stability. Therefore, an in vitro and an in vivo stability study with HoAcAcMS was conducted. METHODS HoAcAcMS, before and after neutron irradiation, were incubated in a phosphate buffer at 37°C for 6 months. The in vitro release of holmium in this buffer after 6 months was 0.5%. Elemental analysis, scanning electron microscopy, infrared spectroscopy and time of flight secondary ion mass spectrometry were performed on the HoAcAcMS. RESULTS After 4 days in buffer the acetylacetonate ligands were replaced by phosphate, without altering the particle size and surface morphology. HoAcAcMS before and after neutron irradiation were administered intratumorally in VX2 tumor-bearing rabbits. No holmium was detected in the faeces, urine, femur and blood. Histological examination of the tumor revealed clusters of intact microspheres amidst necrotic tissue after 30 days. CONCLUSION HoAcAcMS are stable both in vitro and in vivo and are suitable for intratumoral radionuclide treatment.
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423
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Berry KAZ, Hankin JA, Barkley RM, Spraggins JM, Caprioli RM, Murphy RC. MALDI imaging of lipid biochemistry in tissues by mass spectrometry. Chem Rev 2011; 111:6491-512. [PMID: 21942646 PMCID: PMC3199966 DOI: 10.1021/cr200280p] [Citation(s) in RCA: 275] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Karin A. Zemski Berry
- Department of Pharmacology, University of Colorado Denver, Mail Stop 8303, 12801 E. 17 Ave., Aurora, CO 80045
| | - Joseph A. Hankin
- Department of Pharmacology, University of Colorado Denver, Mail Stop 8303, 12801 E. 17 Ave., Aurora, CO 80045
| | - Robert M. Barkley
- Department of Pharmacology, University of Colorado Denver, Mail Stop 8303, 12801 E. 17 Ave., Aurora, CO 80045
| | - Jeffrey M. Spraggins
- Department of Biochemistry and Mass Spectrometry Research Center, Vanderbilt University, 9160 MRB 3, 465 21 Ave. S., Nashville, TN 37232
| | - Richard M. Caprioli
- Department of Biochemistry and Mass Spectrometry Research Center, Vanderbilt University, 9160 MRB 3, 465 21 Ave. S., Nashville, TN 37232
| | - Robert C. Murphy
- Department of Pharmacology, University of Colorado Denver, Mail Stop 8303, 12801 E. 17 Ave., Aurora, CO 80045
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424
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Svara FN, Kiss A, Jaskolla TW, Karas M, Heeren RMA. High-Reactivity Matrices Increase the Sensitivity of Matrix Enhanced Secondary Ion Mass Spectrometry. Anal Chem 2011; 83:8308-13. [DOI: 10.1021/ac202222h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Fabian N. Svara
- FOM Institute for Atomic and Molecular Physics (AMOLF), Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Andras Kiss
- FOM Institute for Atomic and Molecular Physics (AMOLF), Science Park 104, 1098 XG Amsterdam, The Netherlands
- The Netherlands Proteomics Centre, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Thorsten W. Jaskolla
- Cluster of Excellence Macromolecular Complexes, Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Max-von-Laue-Strasse 9, 60438 Frankfurt, Germany
- Institute of Medical Physics and Biophysics, University of Muenster, Robert-Koch-Strasse 31, 48149 Muenster, Germany
| | - Michael Karas
- Cluster of Excellence Macromolecular Complexes, Institute of Pharmaceutical Chemistry, Goethe-University Frankfurt, Max-von-Laue-Strasse 9, 60438 Frankfurt, Germany
| | - Ron M. A. Heeren
- FOM Institute for Atomic and Molecular Physics (AMOLF), Science Park 104, 1098 XG Amsterdam, The Netherlands
- The Netherlands Proteomics Centre, Padualaan 8, 3584 CH Utrecht, The Netherlands
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425
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Delvolve AM, Woods AS. Optimization of automated matrix deposition for biomolecular mapping using a spotter. JOURNAL OF MASS SPECTROMETRY : JMS 2011; 46:1046-1050. [PMID: 22012671 PMCID: PMC3198816 DOI: 10.1002/jms.1986] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Imaging mass spectrometry using matrix-assisted laser desorption/ionization allows the detailed mapping of biomolecules directly from tissue. Matrix deposition is the key step for successful imaging. The appropriate concentration and deposition of matrix is critical for extraction, desorption, and ionization of molecules from tissue without losing molecular localization. The main challenge to meet these criteria is to deposit matrix droplets homogeneously on the tissue section. This work shows how a chemical inkjet printer was used for this purpose resulting in the imaging of phosphatidylcholines and sulfatides. The intricacies involved in effective matrix deposition are discussed.
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Affiliation(s)
| | - Amina S. Woods
- Corresponding Author: Amina S. Woods, Ph.D., NIDA IRP, NIH, 333 Cassell Drive, Room 1120, Baltimore, MD 21224, Tel: 443-740-2747, Fax: 443-740-2144,
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426
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Jones EA, van Remoortere A, van Zeijl RJM, Hogendoorn PCW, Bovée JVMG, Deelder AM, McDonnell LA. Multiple statistical analysis techniques corroborate intratumor heterogeneity in imaging mass spectrometry datasets of myxofibrosarcoma. PLoS One 2011; 6:e24913. [PMID: 21980364 PMCID: PMC3183001 DOI: 10.1371/journal.pone.0024913] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Accepted: 08/22/2011] [Indexed: 11/18/2022] Open
Abstract
MALDI mass spectrometry can generate profiles that contain hundreds of biomolecular ions directly from tissue. Spatially-correlated analysis, MALDI imaging MS, can simultaneously reveal how each of these biomolecular ions varies in clinical tissue samples. The use of statistical data analysis tools to identify regions containing correlated mass spectrometry profiles is referred to as imaging MS-based molecular histology because of its ability to annotate tissues solely on the basis of the imaging MS data. Several reports have indicated that imaging MS-based molecular histology may be able to complement established histological and histochemical techniques by distinguishing between pathologies with overlapping/identical morphologies and revealing biomolecular intratumor heterogeneity. A data analysis pipeline that identifies regions of imaging MS datasets with correlated mass spectrometry profiles could lead to the development of novel methods for improved diagnosis (differentiating subgroups within distinct histological groups) and annotating the spatio-chemical makeup of tumors. Here it is demonstrated that highlighting the regions within imaging MS datasets whose mass spectrometry profiles were found to be correlated by five independent multivariate methods provides a consistently accurate summary of the spatio-chemical heterogeneity. The corroboration provided by using multiple multivariate methods, efficiently applied in an automated routine, provides assurance that the identified regions are indeed characterized by distinct mass spectrometry profiles, a crucial requirement for its development as a complementary histological tool. When simultaneously applied to imaging MS datasets from multiple patient samples of intermediate-grade myxofibrosarcoma, a heterogeneous soft tissue sarcoma, nodules with mass spectrometry profiles found to be distinct by five different multivariate methods were detected within morphologically identical regions of all patient tissue samples. To aid the further development of imaging MS based molecular histology as a complementary histological tool the Matlab code of the agreement analysis, instructions and a reduced dataset are included as supporting information.
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Affiliation(s)
- Emrys A. Jones
- Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Alexandra van Remoortere
- Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - René J. M. van Zeijl
- Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | | | | | - André M. Deelder
- Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Liam A. McDonnell
- Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
- * E-mail:
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427
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Eberlin LS, Ferreira CR, Dill AL, Ifa DR, Cheng L, Cooks RG. Nondestructive, histologically compatible tissue imaging by desorption electrospray ionization mass spectrometry. Chembiochem 2011; 12:2129-32. [PMID: 21793152 PMCID: PMC3678526 DOI: 10.1002/cbic.201100411] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2011] [Indexed: 01/01/2023]
Affiliation(s)
- Livia S. Eberlin
- Department of Chemistry and Center for Analytical Instrumentation and Development Purdue University West Lafayette, IN, 47905
| | - Christina R. Ferreira
- Department of Chemistry and Center for Analytical Instrumentation and Development Purdue University West Lafayette, IN, 47905
| | - Allison L. Dill
- Department of Chemistry and Center for Analytical Instrumentation and Development Purdue University West Lafayette, IN, 47905
| | - Demian R. Ifa
- Department of Chemistry and Center for Analytical Instrumentation and Development Purdue University West Lafayette, IN, 47905
| | - Liang Cheng
- Department of Pathology and Laboratory Medicine Indiana University School of Medicine, Indianapolis, IN, 46202
| | - R. Graham Cooks
- Department of Chemistry and Center for Analytical Instrumentation and Development Purdue University West Lafayette, IN, 47905
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428
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Hutchins PM, Moore EE, Murphy RC. Electrospray MS/MS reveals extensive and nonspecific oxidation of cholesterol esters in human peripheral vascular lesions. J Lipid Res 2011; 52:2070-83. [PMID: 21885431 DOI: 10.1194/jlr.m019174] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Although LDL is rendered proatherogenic by various experimental treatments (e.g., acetylation), the exact structural changes that drive LDL transformation in vivo remain enigmatic. Among the many hypothesized targets of oxidative modification are cholesterol esters (CE). This family of neutral lipids, which carries a highly unsaturated pool of fatty acyl groups, is the main component of both LDL particles and atherosclerotic plaques. Tandem mass spectrometry (MS/MS) was employed to reveal abundant and diverse oxidized CEs (oxCE), including novel oxidation products, within human peripheral vascular lesions. These oxCE species composed up to 40% of the total CE pool, with cholesteryl linoleate being oxidized to the greatest extent. Imaging mass spectrometry studies showed that oxCE was entirely confined within the plaque, along with unmodified CE and triacylglyceride (TAG). Interestingly, we found no evidence for TAG oxidation, although polyunsaturated species were abundant. Enzymatic oxidation of cholesteryl linoleate by 15-lipoxygenase (15-LO), an enzyme often invoked in CE oxidation, initially results in a regio- and stereospecific product. Analysis of intact cholesteryl hydroxyoctadecadienoate isomers in human atheromata revealed no regio- or stereospecificity, indicating 15-LO was either not a major source of oxCE or nonenzymatic processes had eroded any product specificity.
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Affiliation(s)
- Patrick M Hutchins
- Department of Pharmacology, University of Colorado at Denver, Aurora, CO 80045, USA
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429
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Uetrecht C, Heck AJR. Modern biomolecular mass spectrometry and its role in studying virus structure, dynamics, and assembly. Angew Chem Int Ed Engl 2011; 50:8248-62. [PMID: 21793131 PMCID: PMC7159578 DOI: 10.1002/anie.201008120] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Indexed: 01/04/2023]
Abstract
Over a century since its development, the analytical technique of mass spectrometry is blooming more than ever, and applied in nearly all aspects of the natural and life sciences. In the last two decades mass spectrometry has also become amenable to the analysis of proteins and even intact protein complexes, and thus begun to make a significant impact in the field of structural biology. In this Review, we describe the emerging role of mass spectrometry, with its different technical facets, in structural biology, focusing especially on structural virology. We describe how mass spectrometry has evolved into a tool that can provide unique structural and functional information about viral-protein and protein-complex structure, conformation, assembly, and topology, extending to the direct analysis of intact virus capsids of several million Dalton in mass. Mass spectrometry is now used to address important questions in virology ranging from how viruses assemble to how they interact with their host.
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Affiliation(s)
- Charlotte Uetrecht
- Biomolecular Mass Spectrometry and Proteomics Group, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Padualaan 8, 3584 CH Utrecht (The Netherlands)
- Netherlands Proteomics Centre (The Netherlands)
- Present address: Molecular Biophysics, Uppsala University, Uppsala (Sweden)
| | - Albert J. R. Heck
- Biomolecular Mass Spectrometry and Proteomics Group, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Padualaan 8, 3584 CH Utrecht (The Netherlands)
- Netherlands Proteomics Centre (The Netherlands)
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430
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Simonsson L, Gunnarsson A, Wallin P, Jönsson P, Höök F. Continuous Lipid Bilayers Derived from Cell Membranes for Spatial Molecular Manipulation. J Am Chem Soc 2011; 133:14027-32. [DOI: 10.1021/ja204589a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lisa Simonsson
- Department of Applied Physics, Chalmers University of Technology, SE 41296 Gothenburg, Sweden
| | - Anders Gunnarsson
- Department of Applied Physics, Chalmers University of Technology, SE 41296 Gothenburg, Sweden
| | - Patric Wallin
- Department of Applied Physics, Chalmers University of Technology, SE 41296 Gothenburg, Sweden
| | - Peter Jönsson
- Department of Applied Physics, Chalmers University of Technology, SE 41296 Gothenburg, Sweden
| | - Fredrik Höök
- Department of Applied Physics, Chalmers University of Technology, SE 41296 Gothenburg, Sweden
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431
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Uetrecht C, Heck AJR. Moderne biomolekulare Massenspektrometrie und ihre Bedeutung für die Erforschung der Struktur, der Dynamik und des Aufbaus von Viren. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201008120] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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432
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Qiu F, Gu K, Yang B, Ding Y, Jiang D, Wu Y, Huang LL. DNA assay based on monolayer-barcoded nanoparticles for mass spectrometry in combination with magnetic microprobes. Talanta 2011; 85:1698-702. [PMID: 21807242 DOI: 10.1016/j.talanta.2011.06.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Revised: 06/14/2011] [Accepted: 06/15/2011] [Indexed: 01/05/2023]
Abstract
Mass spectrometry (MS) based methodology offers simple, fast and sensitive diagnosis. While it has become the predominate approach in biomolecular analysis, it has not been suitable for analyzing nucleic acid due to its low ionization efficiency. We report herein on a DNA assay based on monolayer-barcoded nanoparticles that were encoded with reporter mass molecules, which act as surrogate molecules for the matrix-assisted laser desorption/ionization time-of-flight MS (MALDI-TOF MS) identification of target DNA through mass spectrometry in combination with magnetic microprobes. This assay demonstrated high MS sensitivity, with the ability to detect target DNA at femtomolar (10(-15) M) levels. This inaugural effort using combined techniques is significant because it showed an extraordinary analytical capability for differentiating the single nucleotide polymorphism (SNP), which comprises the most abundant source of genetic variation in the human genome. We also report herein the feasibility of MS detection of two target DNAs that have the same mass but different nucleotide base composition, which classic MS methodology is inherently unable to differentiate.
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Affiliation(s)
- Fei Qiu
- Institute of Molecular Medicine, Huaqiao University, Quanzhou, PR China
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433
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Kultima K, Sköld K, Borén M. Biomarkers of disease and post-mortem changes - Heat stabilization, a necessary tool for measurement of protein regulation. J Proteomics 2011; 75:145-59. [PMID: 21708298 DOI: 10.1016/j.jprot.2011.06.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 05/25/2011] [Accepted: 06/07/2011] [Indexed: 12/25/2022]
Abstract
This review focuses on post sampling changes and how the Stabilizor system has been used to control this natural biological process and potential implications on cancer-specific biomarkers due to post sampling changes. Tissue sampling is a major traumatic event that can have drastic effects within a very short timeframe at the molecular level [1] resulting in loss of sample quality due to post-mortem changes. A heat-stabilization technology, using the Stabilizor system, has been developed to quickly and permanently abolish the enzymatic activity that causes these changes post-sampling and so preserve sample quality. The Stabilizor system has been shown to give better sample quality when analyzing a variety of tissues in various proteomic workflows. In this paper we discuss the impact of using heat-stabilized tissue in different proteomic applications. Based on our observations regarding the overlap between commonly changing proteins and proteins found to change post-mortem we also highlight a group of proteins of particular interest in cancer studies.
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Affiliation(s)
- Kim Kultima
- Analytical Chemistry, Department of Physical and Analytical Chemistry, Uppsala University, 75124, Uppsala, Sweden
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434
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Melvin Blaze M, Takahashi LK, Zhou J, Ahmed M, Gasper GL, Pleticha FD, Hanley L. Brominated tyrosine and polyelectrolyte multilayer analysis by laser desorption vacuum ultraviolet postionization and secondary ion mass spectrometry. Anal Chem 2011; 83:4962-9. [PMID: 21548612 PMCID: PMC3115520 DOI: 10.1021/ac200693h] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The small molecular analyte 3,5-dibromotyrosine (Br(2)Y) and chitosan-alginate polyelectrolyte multilayers (PEM) with and without adsorbed Br(2)Y were analyzed by laser desorption postionization-mass spectrometry (LDPI-MS). LDPI-MS using a 7.87 eV laser and tunable 8-12.5 eV synchrotron vacuum ultraviolet (VUV) radiation found that desorption of clusters from Br(2)Y films allowed detection by ≤8 eV single photon ionization. Thermal desorption and electronic structure calculations determined the ionization energy of Br(2)Y to be ~8.3 ± 0.1 eV and further indicated that the lower ionization energies of clusters permitted their detection at ≤8 eV photon energies. However, single photon ionization could only detect Br(2)Y adsorbed within PEMs when using either higher photon energies or matrix addition to the sample. All samples were also analyzed by 25 keV Bi(3)(+) secondary ion mass spectrometry (SIMS), with the negative ion spectra showing strong parent ion signal which complemented that observed by LDPI-MS. However, the negative ion SIMS appeared strongly dependent on the high electron affinity of this specific analyte and the analyte's condensed phase environment.
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Affiliation(s)
- M.T. Melvin Blaze
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL 60607
| | - Lynelle K. Takahashi
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
| | - Jia Zhou
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
| | - Musahid Ahmed
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
| | - Gerald L. Gasper
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL 60607
| | - F. Douglas Pleticha
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL 60607
| | - Luke Hanley
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL 60607
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435
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MacAleese L, Duursma MC, Klerk LA, Fisher G, Heeren RM. Protein identification with Liquid Chromatography and Matrix Enhanced Secondary Ion Mass Spectrometry (LC-ME-SIMS). J Proteomics 2011; 74:993-1001. [DOI: 10.1016/j.jprot.2011.02.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 01/20/2011] [Accepted: 02/09/2011] [Indexed: 11/25/2022]
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436
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Tipton JD, Tran JC, Catherman AD, Ahlf DR, Durbin KR, Kelleher NL. Analysis of intact protein isoforms by mass spectrometry. J Biol Chem 2011; 286:25451-8. [PMID: 21632550 DOI: 10.1074/jbc.r111.239442] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The diverse proteome of an organism arises from such events as single nucleotide substitutions at the DNA level, different RNA processing, and dynamic enzymatic post-translational modifications. This minireview focuses on the measurement of intact proteins to describe the diversity found in proteomes. The field of biological mass spectrometry has steadily advanced, enabling improvements in the characterization of single proteins to proteins derived from cells or tissues. In this minireview, we discuss the basic technology for "top-down" intact protein analysis. Furthermore, examples of studies involved with the qualitative and quantitative analysis of full-length polypeptides are provided.
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Affiliation(s)
- Jeremiah D Tipton
- Departmen of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
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437
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Yang YL, Xu Y, Kersten RD, Liu WT, Meehan MJ, Moore BS, Bandeira N, Dorrestein PC. Connecting chemotypes and phenotypes of cultured marine microbial assemblages by imaging mass spectrometry. Angew Chem Int Ed Engl 2011; 50:5839-42. [PMID: 21574228 DOI: 10.1002/anie.201101225] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 04/05/2011] [Indexed: 01/14/2023]
Affiliation(s)
- Yu-Liang Yang
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, CA, USA
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438
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Yang YL, Xu Y, Kersten RD, Liu WT, Meehan MJ, Moore BS, Bandeira N, Dorrestein PC. Connecting Chemotypes and Phenotypes of Cultured Marine Microbial Assemblages by Imaging Mass Spectrometry. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101225] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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439
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440
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Pól J, Vidová V, Hyötyläinen T, Volný M, Novák P, Strohalm M, Kostiainen R, Havlíček V, Wiedmer SK, Holopainen JM. Spatial distribution of glycerophospholipids in the ocular lens. PLoS One 2011; 6:e19441. [PMID: 21559377 PMCID: PMC3084859 DOI: 10.1371/journal.pone.0019441] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Accepted: 03/29/2011] [Indexed: 11/19/2022] Open
Abstract
Knowledge of the spatial distribution of lipids in the intraocular lens is important for understanding the physiology and biochemistry of this unique tissue and for gaining a better insight into the mechanisms underlying diseases of the lens. Following our previous study showing the spatial distribution of sphingolipids in the porcine lens, the current study used ultra performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-QTOFMS) to provide the whole lipidome of porcine lens and these studies were supplemented by matrix-assisted laser desorption ionization mass spectrometry imaging (MALDI MSI) of the lens using ultra-high resolution Fourier transform ion cyclotron resonance mass spectrometry (FTICR MS) to determine the spatial distribution of glycerophospholipids. Altogether 172 lipid species were identified with high confidence and their concentration was determined. Sphingomyelins, phosphatidylcholines, and phosphatidylethanolamines were the most abundant lipid classes. We then determined the spatial and concentration-dependent distributions of 20 phosphatidylcholines, 6 phosphatidylethanolamines, and 4 phosphatidic acids. Based on the planar molecular images of the lipids, we report the organization of fiber cell membranes within the ocular lens and suggest roles for these lipids in normal and diseased lenses.
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Affiliation(s)
- Jaroslav Pól
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
- * E-mail: (JP); (JMH)
| | - Veronika Vidová
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
- Department of Analytical Chemistry, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | | | - Michael Volný
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Petr Novák
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Martin Strohalm
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Risto Kostiainen
- Division of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Vladimír Havlíček
- Laboratory of Molecular Structure Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Susanne K. Wiedmer
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, Helsinki, Finland
| | - Juha M. Holopainen
- Helsinki Eye Lab, Department of Ophthalmology, University of Helsinki, Helsinki, Finland
- * E-mail: (JP); (JMH)
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441
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Urban PL, Chang CH, Wu JT, Chen YC. Microscale MALDI Imaging of Outer-Layer Lipids in Intact Egg Chambers from Drosophila melanogaster. Anal Chem 2011; 83:3918-25. [DOI: 10.1021/ac200481j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Pawel L. Urban
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
| | - Chia-Hsien Chang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
| | - June-Tai Wu
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-Chie Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
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442
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Römpp A, Guenther S, Takats Z, Spengler B. Mass spectrometry imaging with high resolution in mass and space (HR2 MSI) for reliable investigation of drug compound distributions on the cellular level. Anal Bioanal Chem 2011; 401:65-73. [DOI: 10.1007/s00216-011-4990-7] [Citation(s) in RCA: 123] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 04/04/2011] [Accepted: 04/06/2011] [Indexed: 11/30/2022]
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443
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Fletcher JS, Rabbani S, Henderson A, Lockyer NP, Vickerman JC. Three-dimensional mass spectral imaging of HeLa-M cells--sample preparation, data interpretation and visualisation. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:925-932. [PMID: 21416529 DOI: 10.1002/rcm.4944] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Revised: 01/13/2011] [Accepted: 01/13/2011] [Indexed: 05/30/2023]
Abstract
Time-of-flight secondary ion mass spectrometry (ToFSIMS) is being applied increasingly to the study of biological systems where the chemical specificity of mass spectrometry and the high lateral resolution imaging capabilities can be exploited. Here we report a comparison of two cell sample preparation methods and demonstrate how they influence the outcome of the ToFSIMS analysis for three-dimensional (3D) imaging of biological cells using our novel buncher-ToF instrument (J105 3D Chemical Imager) equipped with a C(60) primary ion beam. Cells were analysed fixed and freeze-dried and non-fixed, frozen-hydrated. It is concluded that maintaining the cells in a non-fixed frozen-hydrated state during the analysis helps reduce chemical redistribution, producing cleaner spectra and improved chemical contrast in both 2D and 3D imaging. Insights into data interpretation are included and we present methods for 3D reconstruction of the data using multivariate analysis techniques.
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Affiliation(s)
- John S Fletcher
- Manchester Interdisciplinary Biocentre, School of Chemical Engineering and Analytical Science, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK.
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444
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From pixel to voxel: a deeper view of biological tissue by 3D mass spectral imaging. Bioanalysis 2011; 3:313-32. [PMID: 21320052 DOI: 10.4155/bio.10.201] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Three dimensional mass spectral imaging (3D MSI) is an exciting field that grants the ability to study a broad mass range of molecular species ranging from small molecules to large proteins by creating lateral and vertical distribution maps of select compounds. Although the general premise behind 3D MSI is simple, factors such as choice of ionization method, sample handling, software considerations and many others must be taken into account for the successful design of a 3D MSI experiment. This review provides a brief overview of ionization methods, sample preparation, software types and technological advancements driving 3D MSI research of a wide range of low- to high-mass analytes. Future perspectives in this field are also provided to conclude that the outlook for 3D MSI is positive and promises ever-growing applications in the biomedical field with continuous developments of this powerful analytical tool.
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445
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Hazama H, Yoshimura H, Aoki J, Nagao H, Toyoda M, Masuda K, Fujii K, Tashima T, Naito Y, Awazu K. Development of a stigmatic mass microscope using laser desorption∕ionization and a multi-turn time-of-flight mass spectrometer. JOURNAL OF BIOMEDICAL OPTICS 2011; 16:046007. [PMID: 21529076 DOI: 10.1117/1.3561091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A novel stigmatic mass microscope using laser desorption∕ionization and a multi-turn time-of-flight mass spectrometer, MULTUM-IMG, has been developed. Stigmatic ion images of crystal violet masked by a fine square mesh grid with a 12.7 μm pitch as well as microdot patterns with a 5 μm dot diameter and a 10 μm pitch made with rhodamine B were clearly observed. The estimated spatial resolution was about 3 μm in the linear mode with a 20-fold ion optical magnification. Separating stigmatic ion images according to the time-of-flight, i.e., the mass-to-charge ratio of the ions was successfully demonstrated by a microdot pattern made with two different dyes, crystal violet and methylene blue. Stigmatic ion images of a microdot pattern made with crystal violet were observed after circulation in MULTUM-IMG, and the pattern of the ion image was maintained after ten cycles in MULTUM-IMG. A section of a mouse brain stained with crystal violet and methylene blue was observed in the linear mode, and the stigmatic total ion image of crystal violet and methylene blue agreed well with the optical microphotograph of the hippocampus for the same section.
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Affiliation(s)
- Hisanao Hazama
- Osaka University, Graduate School of Engineering, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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446
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Matrix-assisted laser desorption ionization imaging mass spectrometry in lipidomics. Anal Bioanal Chem 2011; 401:29-51. [DOI: 10.1007/s00216-011-4696-x] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Revised: 12/29/2010] [Accepted: 01/17/2011] [Indexed: 12/12/2022]
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447
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Schäfer KC, Szaniszló T, Günther S, Balog J, Dénes J, Keserű M, Dezső B, Tóth M, Spengler B, Takáts Z. In Situ, Real-Time Identification of Biological Tissues by Ultraviolet and Infrared Laser Desorption Ionization Mass Spectrometry. Anal Chem 2011; 83:1632-40. [DOI: 10.1021/ac102613m] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Karl-Christian Schäfer
- Institute for Inorganic and Analytical Chemistry, Justus Liebig University, Giessen, Germany
| | | | - Sabine Günther
- Institute for Inorganic and Analytical Chemistry, Justus Liebig University, Giessen, Germany
| | | | - Júlia Dénes
- Institute for Inorganic and Analytical Chemistry, Justus Liebig University, Giessen, Germany
| | | | | | | | - Bernhard Spengler
- Institute for Inorganic and Analytical Chemistry, Justus Liebig University, Giessen, Germany
| | - Zoltán Takáts
- Institute for Inorganic and Analytical Chemistry, Justus Liebig University, Giessen, Germany
- Medimass Ltd., Budapest, Hungary
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448
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Size, weight and position: ion mobility spectrometry and imaging MS combined. Anal Bioanal Chem 2011; 399:2623-34. [PMID: 21225246 PMCID: PMC3043238 DOI: 10.1007/s00216-010-4644-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Revised: 12/18/2010] [Accepted: 12/21/2010] [Indexed: 11/09/2022]
Abstract
Size, weight and position are three of the most important parameters that describe a molecule in a biological system. Ion mobility spectrometry is capable of separating molecules on the basis of their size or shape, whereas imaging mass spectrometry is an effective tool to measure the molecular weight and spatial distribution of molecules. Recent developments in both fields enabled the combination of the two technologies. As a result, ion-mobility-based imaging mass spectrometry is gaining more and more popularity as a (bio-)analytical tool enabling the determination of the size, weight and position of several molecules simultaneously on biological surfaces. This paper reviews the evolution of ion-mobility-based imaging mass spectrometry and provides examples of its application in analytical studies of biological surfaces.
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449
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Reindl W, Bowen BP, Balamotis MA, Green JE, Northen TR. Multivariate analysis of a 3D mass spectral image for examining tissue heterogeneity. Integr Biol (Camb) 2011; 3:460-7. [PMID: 21212877 DOI: 10.1039/c0ib00091d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The tissue microenvironment critically influences the molecular characteristics of a tumor. However, as tumorous tissue is highly heterogeneous it may harbor various sub-populations with different microenvironments, greatly complicating the unambiguous analysis of tumor biology. Mass spectrometry imaging techniques allow for the direct analysis of tumors in the spatial context of their microenvironment. However, discovery of heterogeneous sub-populations often depends on the use of multivariate statistical methods. While this is routinely used for 2D images, multivariate statistical approaches are rarely seen in the context of 3D images. Here we present the automatic alignment of 2D images recorded by nanostructure-initiator mass spectrometry (NIMS) to reconstruct a 3D model of a mouse mammary tumor. Multivariate statistical analysis was applied to the whole 3D reconstruction at once, revealing distinct tumor regions, an observation that would not have been possible in such clarity through the analysis of isolated 2D sections. These sub-structures were confirmed by H&E and Oil Red O stains. This study shows that the combination of 3D imaging and multivariate statistics can be used to define tumor regions.
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Affiliation(s)
- Wolfgang Reindl
- Department of Bioenergy/GTL & Structural Biology, Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
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450
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Srimany A, Ifa DR, Naik HR, Bhat V, Cooks RG, Pradeep T. Direct analysis of camptothecin from Nothapodytes nimmoniana by desorption electrospray ionization mass spectrometry (DESI-MS). Analyst 2011; 136:3066-8. [DOI: 10.1039/c1an15339k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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