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Andrews MG, Pearson CA. Toward an understanding of glucose metabolism in radial glial biology and brain development. Life Sci Alliance 2024; 7:e202302193. [PMID: 37798120 PMCID: PMC10556723 DOI: 10.26508/lsa.202302193] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 10/07/2023] Open
Abstract
Decades of research have sought to determine the intrinsic and extrinsic mechanisms underpinning the regulation of neural progenitor maintenance and differentiation. A series of precise temporal transitions within progenitor cell populations generates all the appropriate neural cell types while maintaining a pool of self-renewing progenitors throughout embryogenesis. Recent technological advances have enabled us to gain new insights at the single-cell level, revealing an interplay between metabolic state and developmental progression that impacts the timing of proliferation and neurogenesis. This can have long-term consequences for the developing brain's neuronal specification, maturation state, and organization. Furthermore, these studies have highlighted the need to reassess the instructive role of glucose metabolism in determining progenitor cell division, differentiation, and fate. This review focuses on glucose metabolism (glycolysis) in cortical progenitor cells and the emerging focus on glycolysis during neurogenic transitions. Furthermore, we discuss how the field can learn from other biological systems to improve our understanding of the spatial and temporal changes in glycolysis in progenitors and evaluate functional neurological outcomes.
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Affiliation(s)
- Madeline G Andrews
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, USA
| | - Caroline A Pearson
- https://ror.org/02r109517 Center for Neurogenetics, Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
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2
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Świt P, Pollap A, Orzeł J. Spectroscopic Determination of Acetylcholine (ACh): A Representative Review. Top Curr Chem (Cham) 2023; 381:16. [PMID: 37169979 PMCID: PMC10175388 DOI: 10.1007/s41061-023-00426-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 04/22/2023] [Indexed: 05/13/2023]
Abstract
Acetylcholine (ACh) is one of the most crucial neurotransmitters of the cholinergic system found in vertebrates and invertebrates and is responsible for many processes in living organisms. Disturbances in ACh transmission are closely related to dementia in Alzheimer's and Parkinson's disease. ACh in biological samples is most often determined using chromatographic techniques, radioenzymatic assays, enzyme-linked immunosorbent assay (ELISA), or potentiometric methods. An alternative way to detect and determine acetylcholine is applying spectroscopic techniques, due to low limits of detection and quantification, which is not possible with the methods mentioned above. In this review article, we described a detailed overview of different spectroscopic methods used to determine ACh with a collection of validation parameters as a perspective tool for routine analysis, especially in basic research on animal models on central nervous system. In addition, there is a discussion of examples of other biological materials from clinical and preclinical studies to give the whole spectrum of spectroscopic methods application. Descriptions of the developed chemical sensors, as well as the use of flow technology, were also presented. It is worth emphasizing the inclusion in the article of multi-component analysis referring to other neurotransmitters, as well as the description of the tested biological samples and extraction procedures. The motivation to use spectroscopic techniques to conduct this type of analysis and future perspectives in this field are briefly discussed.
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Affiliation(s)
- Paweł Świt
- Institute of Chemistry, Faculty of Science and Technology, University of Silesia in Katowice, 9 Szkolna Street, 40-006, Katowice, Poland.
| | | | - Joanna Orzeł
- Institute of Chemistry, Faculty of Science and Technology, University of Silesia in Katowice, 9 Szkolna Street, 40-006, Katowice, Poland
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3
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Cleland NRW, Al-Juboori SI, Dobrinskikh E, Bruce KD. Altered substrate metabolism in neurodegenerative disease: new insights from metabolic imaging. J Neuroinflammation 2021; 18:248. [PMID: 34711251 PMCID: PMC8555332 DOI: 10.1186/s12974-021-02305-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/21/2021] [Indexed: 12/13/2022] Open
Abstract
Neurodegenerative diseases (NDs), such as Alzheimer's disease (AD), Parkinson's disease (PD) and multiple sclerosis (MS), are relatively common and devastating neurological disorders. For example, there are 6 million individuals living with AD in the United States, a number that is projected to grow to 14 million by the year 2030. Importantly, AD, PD and MS are all characterized by the lack of a true disease-modifying therapy that is able to reverse or halt disease progression. In addition, the existing standard of care for most NDs only addresses the symptoms of the disease. Therefore, alternative strategies that target mechanisms underlying the neuropathogenesis of disease are much needed. Recent studies have indicated that metabolic alterations in neurons and glia are commonly observed in AD, PD and MS and lead to changes in cell function that can either precede or protect against disease onset and progression. Specifically, single-cell RNAseq studies have shown that AD progression is tightly linked to the metabolic phenotype of microglia, the key immune effector cells of the brain. However, these analyses involve removing cells from their native environment and performing measurements in vitro, influencing metabolic status. Therefore, technical approaches that can accurately assess cell-specific metabolism in situ have the potential to be transformative to our understanding of the mechanisms driving AD. Here, we review our current understanding of metabolism in both neurons and glia during homeostasis and disease. We also evaluate recent advances in metabolic imaging, and discuss how emerging modalities, such as fluorescence lifetime imaging microscopy (FLIM) have the potential to determine how metabolic perturbations may drive the progression of NDs. Finally, we propose that the temporal, regional, and cell-specific characterization of brain metabolism afforded by FLIM will be a critical first step in the rational design of metabolism-focused interventions that delay or even prevent NDs.
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Affiliation(s)
- Nicholas R W Cleland
- Endocrinology, Metabolism and Diabetes, Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, USA
- School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Saif I Al-Juboori
- Section of Neonatology, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Evgenia Dobrinskikh
- Section of Neonatology, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, USA
- Division of Pulmonary Sciences and Critical Care, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Kimberley D Bruce
- Endocrinology, Metabolism and Diabetes, Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, USA.
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Takeo E, Sugiura Y, Ohnishi Y, Kishima H, Fukusaki E, Shimma S. Mass Spectrometric Enzyme Histochemistry for Choline Acetyltransferase Reveals De Novo Acetylcholine Synthesis in Rodent Brain and Spinal Cord. ACS Chem Neurosci 2021; 12:2079-2087. [PMID: 34078081 DOI: 10.1021/acschemneuro.0c00720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Choline acetyltransferase (ChAT), responsible for the synthesis of acetylcholine, plays an important role in neurotransmission. However, no method to visualize the ChAT activity in tissues has been reported to date. In this study, mass spectrometry imaging (MSI) was used to visualize ChAT activity in situ, which is difficult with conventional enzyme histochemistry. By using choline chloride-trimethyl-d9 (choline-d9) as a substrate and simultaneously supplying an inhibitor of cholinesterase to tissues, we succeeded in directly visualizing the ChAT activity in the rodent brain and spinal cord. The findings revealed heterogeneous ChAT activity in the striatum of the mouse brain and in the spinal lower motor neurons that connect the anterior horn to the ventral root. Furthermore, extending the developed method to spinal cord injury (SCI) model mice revealed the site-specific effect of primary and secondary injury on ChAT activity. This study shows that the MSI-based enzyme histochemistry of ChAT could be a useful tool for studying cholinergic neurons.
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Affiliation(s)
- Emi Takeo
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yuki Sugiura
- Department of Biochemistry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Yuichiro Ohnishi
- Department of Neurosurgery, Graduate school of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Haruhiko Kishima
- Department of Neurosurgery, Graduate school of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Eiichiro Fukusaki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shuichi Shimma
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Li H, Uittenbogaard M, Hao L, Chiaramello A. Clinical Insights into Mitochondrial Neurodevelopmental and Neurodegenerative Disorders: Their Biosignatures from Mass Spectrometry-Based Metabolomics. Metabolites 2021; 11:233. [PMID: 33920115 PMCID: PMC8070181 DOI: 10.3390/metabo11040233] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 02/07/2023] Open
Abstract
Mitochondria are dynamic multitask organelles that function as hubs for many metabolic pathways. They produce most ATP via the oxidative phosphorylation pathway, a critical pathway that the brain relies on its energy need associated with its numerous functions, such as synaptic homeostasis and plasticity. Therefore, mitochondrial dysfunction is a prevalent pathological hallmark of many neurodevelopmental and neurodegenerative disorders resulting in altered neurometabolic coupling. With the advent of mass spectrometry (MS) technology, MS-based metabolomics provides an emerging mechanistic understanding of their global and dynamic metabolic signatures. In this review, we discuss the pathogenetic causes of mitochondrial metabolic disorders and the recent MS-based metabolomic advances on their metabolomic remodeling. We conclude by exploring the MS-based metabolomic functional insights into their biosignatures to improve diagnostic platforms, stratify patients, and design novel targeted therapeutic strategies.
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Affiliation(s)
- Haorong Li
- Department of Chemistry, George Washington University, Science and Engineering Hall 4000, 800 22nd St., NW, Washington, DC 20052, USA;
| | - Martine Uittenbogaard
- Department of Anatomy and Cell Biology, School of Medicine and Health Sciences, George Washington University, 2300 I Street N.W. Ross Hall 111, Washington, DC 20037, USA;
| | - Ling Hao
- Department of Chemistry, George Washington University, Science and Engineering Hall 4000, 800 22nd St., NW, Washington, DC 20052, USA;
| | - Anne Chiaramello
- Department of Anatomy and Cell Biology, School of Medicine and Health Sciences, George Washington University, 2300 I Street N.W. Ross Hall 111, Washington, DC 20037, USA;
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Applications of stable isotopes in MALDI imaging: current approaches and an eye on the future. Anal Bioanal Chem 2021; 413:2637-2653. [PMID: 33532914 DOI: 10.1007/s00216-021-03189-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/30/2020] [Accepted: 01/20/2021] [Indexed: 02/07/2023]
Abstract
Matrix-assisted laser desorption/ionisation-imaging mass spectrometry (MALDI-IMS) is now an established imaging modality with particular utility in the study of biological, biomedical and pathological processes. In the first instance, the use of stable isotopically labelled (SIL) compounds in MALDI-IMS has addressed technical barriers to increase the accuracy and versatility of this technique. This has undoubtedly enhanced our ability to interpret the two-dimensional ion intensity distributions produced from biological tissue sections. Furthermore, studies using delivery of SIL compounds to live tissues have begun to decipher cell, tissue and inter-tissue metabolism while maintaining spatial resolution. Here, we review both the technical and biological applications of SIL compounds in MALDI-IMS, before using the uptake and metabolism of glucose in bovine ocular lens tissue to illustrate the current limitations of SIL compound use in MALDI-IMS. Finally, we highlight recent instrumentation advances that may further enhance our ability to use SIL compounds in MALDI-IMS to understand biological and pathological processes. Graphical Abstract.
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Neumann EK, Djambazova KV, Caprioli RM, Spraggins JM. Multimodal Imaging Mass Spectrometry: Next Generation Molecular Mapping in Biology and Medicine. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:2401-2415. [PMID: 32886506 PMCID: PMC9278956 DOI: 10.1021/jasms.0c00232] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Imaging mass spectrometry has become a mature molecular mapping technology that is used for molecular discovery in many medical and biological systems. While powerful by itself, imaging mass spectrometry can be complemented by the addition of other orthogonal, chemically informative imaging technologies to maximize the information gained from a single experiment and enable deeper understanding of biological processes. Within this review, we describe MALDI, SIMS, and DESI imaging mass spectrometric technologies and how these have been integrated with other analytical modalities such as microscopy, transcriptomics, spectroscopy, and electrochemistry in a field termed multimodal imaging. We explore the future of this field and discuss forthcoming developments that will bring new insights to help unravel the molecular complexities of biological systems, from single cells to functional tissue structures and organs.
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Affiliation(s)
- Elizabeth K Neumann
- Department of Biochemistry, Vanderbilt University, 607 Light Hall, Nashville, Tennessee 37205, United States
- Mass Spectrometry Research Center, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
| | - Katerina V Djambazova
- Mass Spectrometry Research Center, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Station B 351822, Nashville, Tennessee 37235, United States
| | - Richard M Caprioli
- Department of Biochemistry, Vanderbilt University, 607 Light Hall, Nashville, Tennessee 37205, United States
- Mass Spectrometry Research Center, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, 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
- Department of Medicine, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
| | - Jeffrey M Spraggins
- Department of Biochemistry, Vanderbilt University, 607 Light Hall, Nashville, Tennessee 37205, United States
- Mass Spectrometry Research Center, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Station B 351822, Nashville, Tennessee 37235, United States
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8
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The Cholinergic Profile as a Target for Rational Therapy of Central Nervous System Diseases and Injuries. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s11055-020-01012-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Litvinenko IV, Zhivolupov SA, Samartsev IN, Kravchuk AY, Vorobyova MN, Yakovlev EV, Butakova YS. [Cholinergic profile as a target of rational therapy of central nervous system diseases and injuries]. Zh Nevrol Psikhiatr Im S S Korsakova 2020; 120:31-38. [PMID: 32307408 DOI: 10.17116/jnevro202012002131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AIM A comparative analysis of the clinical efficacy of cholinergic drugs and acetylcholinesterase inhibitors (IHE), as well as their combination, in the treatment of cerebrovascular disease and consequences of intracranial injury according to clinical, instrumental and laboratory dynamic observations. MATERIAL AND METHODS Ninety patients with cerebrovascular pathology, including 45 with chronic brain ischemia stage 2 (ICD-10 I67) and 45 with sequelae of intracranial injury (ICD-10 T90.5), were enrolled in the study. Complex treatment of patients included basic and specific therapy. The groups were divided into 3 subgroups of 15 people: the neuromidin group, the gliatilin group and the neuromidin + gliatilin group. The duration of treatment was 2 months. All patients underwent a comprehensive clinical, neurophysiological and laboratory examination prior to therapy, after 1 month and 2 month from the beginning of therapy: a study of cholinesterase activity in the blood, testing on MMSE and Hamilton scales, transcranial magnetic stimulation with determination of Central motor conduction time and somatosensory evoked potentials with calculation of Central afferent conduction time. RESULTS Prior to treatment, a significant positive strong correlation was found between the age of patients and the level of CE activity in serum (Rs=0.77; p=0.0001). The treatment resulted in a significant (p<0.05) improvement of all parameters (except for MMSE that showed a trend towards improvement) in the neuromidin and the neuromidin + gliatilin subgroups of each group compared to those in the gliatilin subgroups. In addition, after 2 months from the beginning of treatment, there was a significant decrease in the activity of CE in serum in the neuromidin and the neuromidin + gliatilin subgroups. CONCLUSION The study of deviations of the 'cholinergic profile' (the level of CE activity in the blood) in patients with cerebral pathology and the strategy using cholinergic drugs, IHE and their combination for the treatment of neuropsychiatric disorders, is one of the important directions in the optimization of combined therapy of patients of this profile.
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Affiliation(s)
| | | | - I N Samartsev
- Kirov Military Medical Academy, St. Petersburg, Russia
| | - A Yu Kravchuk
- Kirov Military Medical Academy, St. Petersburg, Russia
| | - M N Vorobyova
- Kirov Military Medical Academy, St. Petersburg, Russia
| | - E V Yakovlev
- Admiralty Shipyards Medical Center, St. Petersburg, Russia
| | - Yu S Butakova
- Novodvinsk Central City Hospital, Novodvinsk, Russia
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Matsuda T, Suzuki Y, Fujisawa T, Suga Y, Saito N, Suda T, Yao I. Imaging mass spectrometry to visualise increased acetylcholine in lungs of asthma model mice. Anal Bioanal Chem 2020; 412:4327-4341. [PMID: 32367293 PMCID: PMC7320054 DOI: 10.1007/s00216-020-02670-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 04/14/2020] [Accepted: 04/17/2020] [Indexed: 01/12/2023]
Abstract
Acetylcholine (ACh) is a crucial neurotransmitter that is involved in airway constriction. In fact, excessive ACh binding to M3 muscarinic receptor leads to airflow obstruction via smooth muscle contraction. Previous studies have suggested cholinergic malfunction in the pathogenesis of asthma; however, the distribution and abundance of ACh in asthmatic lungs remain unclear because of the challenges of imaging ACh in lung tissue. In this study, we successfully detected and visualised ACh in mouse lung tissue by using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). Here, we applied the ACh imaging method to the two groups of house dust mite-sensitised asthma model mice harbouring different inflammatory levels. The imaging results showed that the lungs of mice had a relatively uniform ACh distribution with some areas of heterogeneity. The lungs of asthma model mice had significantly more ACh than control mice, and the ACh increase was potentiated with intense eosinophil infiltration without acetylcholinesterase deficits. These results indicate that ACh hypersecretion is mediated by an increased infiltration of eosinophils in asthma aggravation. This study provides the first evidence that secreted ACh is elevated with asthma severity in the lungs of asthma model animals by a direct ACh imaging technique with FT-ICR-MS.
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Affiliation(s)
- Takeshi Matsuda
- Department of Optical Imaging, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan.,Department of Pharmaceutical Sciences, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan
| | - Yuzo Suzuki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Tomoyuki Fujisawa
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Yasunori Suga
- Nippon Boehringer Ingelheim Co., Ltd., 2-1-1 Osaki, Shinagawa-ku, Tokyo, 141-6017, Japan
| | - Nobuyuki Saito
- Nippon Boehringer Ingelheim Co., Ltd., 2-1-1 Osaki, Shinagawa-ku, Tokyo, 141-6017, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan
| | - Ikuko Yao
- Department of Optical Imaging, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan. .,International Mass Imaging Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan. .,Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo, 669-1337, Japan.
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11
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L-carnitine's role in KAATSU training- induced neuromuscular fatigue. Biomed Pharmacother 2020; 125:109899. [DOI: 10.1016/j.biopha.2020.109899] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 01/11/2020] [Accepted: 01/14/2020] [Indexed: 02/06/2023] Open
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12
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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] [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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Molecular imaging identifies age-related attenuation of acetylcholine in retrosplenial cortex in response to acetylcholinesterase inhibition. Neuropsychopharmacology 2019; 44:2091-2098. [PMID: 31009936 PMCID: PMC6887892 DOI: 10.1038/s41386-019-0397-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/28/2019] [Accepted: 04/07/2019] [Indexed: 02/05/2023]
Abstract
The neurotransmitter of the cholinergic system, acetylcholine plays a major role in the brain's cognitive function and is involved in neurodegenerative disorders. Here, we present age-related alterations of acetylcholine levels after administration of the acetylcholinesterase inhibitor drug tacrine in normal mice. Using a quantitative, robust and molecular-specific mass spectrometry imaging method we found that tacrine administration significantly raised acetylcholine levels in most areas of sectioned mice brains, inter alia the striatum, hippocampus and cortical areas. However, acetylcholine levels in retrosplenial cortex were significantly lower in 14-month-old than in 12-week-old animals following its administration, indicating that normal aging affects the cholinergic system's responsivity. This small brain region is interconnected with an array of brain networks and is involved in numerous cognitive tasks. Simultaneous visualization of distributions of tacrine and its hydroxylated metabolites in the brain revealed a significant decrease in levels of the metabolites in the 14-month-old mice. The results highlight strengths of the imaging technique to simultaneously investigate multiple molecular species and the drug-target effects in specific regions of the brain. The proposed approach has high potential in studies of neuropathological conditions and responses to neuroactive treatments.
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Sugiyama E, Guerrini MM, Honda K, Hattori Y, Abe M, Källback P, Andrén PE, Tanaka KF, Setou M, Fagarasan S, Suematsu M, Sugiura Y. Detection of a High-Turnover Serotonin Circuit in the Mouse Brain Using Mass Spectrometry Imaging. iScience 2019; 20:359-372. [PMID: 31614319 PMCID: PMC6818351 DOI: 10.1016/j.isci.2019.09.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 07/12/2019] [Accepted: 09/24/2019] [Indexed: 12/31/2022] Open
Abstract
Monoamine neurotransmitters are released by specialized neurons regulating behavioral, motor, and cognitive functions. Although the localization of monoaminergic neurons in the brain is well known, the distribution and kinetics of monoamines remain unclear. Here, we generated a murine brain atlas of serotonin (5-HT), dopamine (DA), and norepinephrine (NE) levels using mass spectrometry imaging (MSI). We found several nuclei rich in both 5-HT and a catecholamine (DA or NE) and identified the paraventricular nucleus of the thalamus (PVT), where 5-HT and NE are co-localized. The analysis of 5-HT fluctuations in response to acute tryptophan depletion and infusion of isotope-labeled tryptophan in vivo revealed a close kinetic association between the raphe nuclei, PVT, and amygdala but not the other nuclei. Our findings imply the existence of a highly dynamic 5-HT-mediated raphe to PVT pathway that likely plays a role in the brain monoamine system. A murine brain atlas of monoamine (5-HT, DA, NE) levels was generated via MS imaging We identified several nuclei rich in both 5-HT and a catecholamine (DA or NE) The paraventricular nucleus of the thalamus (PVT) had high levels of 5-HT and NE The level of 5-HT in raphe to PVT pathway changed dynamically in response to blood Trp level
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Affiliation(s)
- Eiji Sugiyama
- Department of Biochemistry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Matteo M Guerrini
- Laboratory for Mucosal Immunity, Center for Integrative Medical Sciences, RIKEN Yokohama Institute, Tsurumi Ward, Suehirocho, 1 Chome-7-22, Yokohama, Kanagawa Prefecture 230-0045, Japan
| | - Kurara Honda
- Department of Biochemistry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Yuko Hattori
- Department of Biochemistry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Manabu Abe
- Department of Animal Model Development, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuo-ku, Niigata 951-8585, Japan
| | - Patrik Källback
- Medical Mass Spectrometry Imaging, Department of Pharmaceutical Biosciences, Uppsala University, Box 591 BMC, 75124 Uppsala, Sweden; Science for Life Laboratory, National Resource for Mass Spectrometry Imaging, Uppsala University, Box 591 BMC, 75124 Uppsala, Sweden
| | - Per E Andrén
- Medical Mass Spectrometry Imaging, Department of Pharmaceutical Biosciences, Uppsala University, Box 591 BMC, 75124 Uppsala, Sweden; Science for Life Laboratory, National Resource for Mass Spectrometry Imaging, Uppsala University, Box 591 BMC, 75124 Uppsala, Sweden
| | - Kenji F Tanaka
- Department of Neuropsychiatry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Mitsutoshi Setou
- Department of Cellular and Molecular Anatomy and International Mass Imaging Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan
| | - Sidonia Fagarasan
- Laboratory for Mucosal Immunity, Center for Integrative Medical Sciences, RIKEN Yokohama Institute, Tsurumi Ward, Suehirocho, 1 Chome-7-22, Yokohama, Kanagawa Prefecture 230-0045, Japan
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Yuki Sugiura
- Department of Biochemistry, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan.
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15
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Faiq MA, Wollstein G, Schuman JS, Chan KC. Cholinergic nervous system and glaucoma: From basic science to clinical applications. Prog Retin Eye Res 2019; 72:100767. [PMID: 31242454 PMCID: PMC6739176 DOI: 10.1016/j.preteyeres.2019.06.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 06/19/2019] [Accepted: 06/21/2019] [Indexed: 02/08/2023]
Abstract
The cholinergic system has a crucial role to play in visual function. Although cholinergic drugs have been a focus of attention as glaucoma medications for reducing eye pressure, little is known about the potential modality for neuronal survival and/or enhancement in visual impairments. Citicoline, a naturally occurring compound and FDA approved dietary supplement, is a nootropic agent that is recently demonstrated to be effective in ameliorating ischemic stroke, traumatic brain injury, Parkinson's disease, Alzheimer's disease, cerebrovascular diseases, memory disorders and attention-deficit/hyperactivity disorder in both humans and animal models. The mechanisms of its action appear to be multifarious including (i) preservation of cardiolipin, sphingomyelin, and arachidonic acid contents of phosphatidylcholine and phosphatidylethanolamine, (ii) restoration of phosphatidylcholine, (iii) stimulation of glutathione synthesis, (iv) lowering glutamate concentrations and preventing glutamate excitotoxicity, (v) rescuing mitochondrial function thereby preventing oxidative damage and onset of neuronal apoptosis, (vi) synthesis of myelin leading to improvement in neuronal membrane integrity, (vii) improving acetylcholine synthesis and thereby reducing the effects of mental stress and (viii) preventing endothelial dysfunction. Such effects have vouched for citicoline as a neuroprotective, neurorestorative and neuroregenerative agent. Retinal ganglion cells are neurons with long myelinated axons which provide a strong rationale for citicoline use in visual pathway disorders. Since glaucoma is a form of neurodegeneration involving retinal ganglion cells, citicoline may help ameliorate glaucomatous damages in multiple facets. Additionally, trans-synaptic degeneration has been identified in humans and experimental models of glaucoma suggesting the cholinergic system as a new brain target for glaucoma management and therapy.
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Affiliation(s)
- Muneeb A Faiq
- Department of Ophthalmology, New York University (NYU) School of Medicine, NYU Langone Health, New York, NY, United States
| | - Gadi Wollstein
- Department of Ophthalmology, New York University (NYU) School of Medicine, NYU Langone Health, New York, NY, United States
| | - Joel S Schuman
- Department of Ophthalmology, New York University (NYU) School of Medicine, NYU Langone Health, New York, NY, United States
| | - Kevin C Chan
- Department of Ophthalmology, New York University (NYU) School of Medicine, NYU Langone Health, New York, NY, United States; Department of Radiology, New York University (NYU) School of Medicine, NYU Langone Health, New York, NY, United States; Center for Neural Science, Faculty of Arts and Science, New York University, New York, NY, United States.
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16
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Otvos RA, Still KBM, Somsen GW, Smit AB, Kool J. Drug Discovery on Natural Products: From Ion Channels to nAChRs, from Nature to Libraries, from Analytics to Assays. SLAS DISCOVERY : ADVANCING LIFE SCIENCES R & D 2019; 24:362-385. [PMID: 30682257 PMCID: PMC6484542 DOI: 10.1177/2472555218822098] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/16/2018] [Accepted: 12/07/2018] [Indexed: 12/21/2022]
Abstract
Natural extracts are complex mixtures that may be rich in useful bioactive compounds and therefore are attractive sources for new leads in drug discovery. This review describes drug discovery from natural products and in explaining this process puts the focus on ion-channel drug discovery. In particular, the identification of bioactives from natural products targeting nicotinic acetylcholine receptors (nAChRs) and serotonin type 3 receptors (5-HT3Rs) is discussed. The review is divided into three parts: "Targets," "Sources," and "Approaches." The "Targets" part will discuss the importance of ion-channel drug targets in general, and the α7-nAChR and 5-HT3Rs in particular. The "Sources" part will discuss the relevance for drug discovery of finding bioactive compounds from various natural sources such as venoms and plant extracts. The "Approaches" part will give an overview of classical and new analytical approaches that are used for the identification of new bioactive compounds with the focus on targeting ion channels. In addition, a selected overview is given of traditional venom-based drug discovery approaches and of diverse hyphenated analytical systems used for screening complex bioactive mixtures including venoms.
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Affiliation(s)
- Reka A. Otvos
- The Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Kristina B. M. Still
- The Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Govert W. Somsen
- The Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - August B. Smit
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jeroen Kool
- The Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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17
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Luan H, Wang X, Cai Z. Mass spectrometry-based metabolomics: Targeting the crosstalk between gut microbiota and brain in neurodegenerative disorders. MASS SPECTROMETRY REVIEWS 2019; 38:22-33. [PMID: 29130504 DOI: 10.1002/mas.21553] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 10/12/2017] [Indexed: 05/10/2023]
Abstract
Metabolomics seeks to take a "snapshot" in a time of the levels, activities, regulation and interactions of all small molecule metabolites in response to a biological system with genetic or environmental changes. The emerging development in mass spectrometry technologies has shown promise in the discovery and quantitation of neuroactive small molecule metabolites associated with gut microbiota and brain. Significant progress has been made recently in the characterization of intermediate role of small molecule metabolites linked to neural development and neurodegenerative disorder, showing its potential in understanding the crosstalk between gut microbiota and the host brain. More evidence reveals that small molecule metabolites may play a critical role in mediating microbial effects on neurotransmission and disease development. Mass spectrometry-based metabolomics is uniquely suitable for obtaining the metabolic signals in bidirectional communication between gut microbiota and brain. In this review, we summarized major mass spectrometry technologies including liquid chromatography-mass spectrometry, gas chromatography-mass spectrometry, and imaging mass spectrometry for metabolomics studies of neurodegenerative disorders. We also reviewed the recent advances in the identification of new metabolites by mass spectrometry and metabolic pathways involved in the connection of intestinal microbiota and brain. These metabolic pathways allowed the microbiota to impact the regular function of the brain, which can in turn affect the composition of microbiota via the neurotransmitter substances. The dysfunctional interaction of this crosstalk connects neurodegenerative diseases, including Parkinson's disease, Alzheimer's disease and Huntington's disease. The mass spectrometry-based metabolomics analysis provides information for targeting dysfunctional pathways of small molecule metabolites in the development of the neurodegenerative diseases, which may be valuable for the investigation of underlying mechanism of therapeutic strategies.
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Affiliation(s)
- Hemi Luan
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Xian Wang
- Key Laboratory of Analytical Chemistry of State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, Hubei, China
| | - Zongwei Cai
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
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18
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Smith MK, Bose U, Mita M, Hall MR, Elizur A, Motti CA, Cummins SF. Differences in Small Molecule Neurotransmitter Profiles From the Crown-of-Thorns Seastar Radial Nerve Revealed Between Sexes and Following Food-Deprivation. Front Endocrinol (Lausanne) 2018; 9:551. [PMID: 30374327 PMCID: PMC6196772 DOI: 10.3389/fendo.2018.00551] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/30/2018] [Indexed: 01/14/2023] Open
Abstract
Neurotransmitters serve as chemical mediators of cell communication, and are known to have important roles in regulating numerous physiological and metabolic events in eumetazoans. The Crown-of-Thorns Seastar (COTS) is an asteroid echinoderm that has been the focus of numerous ecological studies due to its negative impact on coral reefs when in large numbers. Research devoted to its neural signaling, from basic anatomy to the key small neurotransmitters, would expand our current understanding of neural-driven biological processes, such as growth and reproduction, and offers a new approach to exploring the propensity for COTS population explosions and subsequent collapse. In this study we investigated the metabolomic profiles of small molecule neurotransmitters in the COTS radial nerve cord. Multivariate analysis shows differential abundance of small molecule neurotransmitters in male and female COTS, and in food-deprived individuals with significant differences between sexes in gamma-aminobutyric acid (GABA), histamine and serotonin, and significant differences in histamine and serotonin between satiation states. Annotation established that the majority of biosynthesis enzyme genes are present in the COTS genome. The spatial distribution of GABA, histamine and serotonin in the radial nerve cord was subsequently confirmed by immunolocalization; serotonin is most prominent within the ectoneural regions, including unique neural bulbs, while GABA and histamine localize primarily within neuropil fibers. Glutamic acid, which was also found in high relative abundance and is a precursor of GABA, is known as a spawning inhibitor in seastars, and as such was tested for inhibition of ovulation ex-vivo which resulted in complete inhibition of oocyte maturation and ovulation induced by 1-Methyladenine. These findings not only advance our knowledge of echinoderm neural signaling processes but also identify potential targets for developing novel approaches for COTS biocontrol.
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Affiliation(s)
- Meaghan K. Smith
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore, DC, Australia
| | - Utpal Bose
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore, DC, Australia
| | - Masatoshi Mita
- Center for Advanced Biomedical Sciences, TWIns Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
| | - Michael R. Hall
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville, QLD, Australia
| | - Abigail Elizur
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore, DC, Australia
| | - Cherie A. Motti
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville, QLD, Australia
| | - Scott F. Cummins
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore, DC, Australia
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19
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Oya M, Suzuki H, Anas ARJ, Oishi K, Ono K, Yamaguchi S, Eguchi M, Sawada M. LC-MS/MS imaging with thermal film-based laser microdissection. Anal Bioanal Chem 2017; 410:491-499. [PMID: 29184999 DOI: 10.1007/s00216-017-0739-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/20/2017] [Accepted: 11/02/2017] [Indexed: 12/18/2022]
Abstract
Mass spectrometry (MS) imaging is a useful tool for direct and simultaneous visualization of specific molecules. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) is used to evaluate the abundance of molecules in tissues using sample homogenates. To date, however, LC-MS/MS has not been utilized as an imaging tool because spatial information is lost during sample preparation. Here we report a new approach for LC-MS/MS imaging using a thermal film-based laser microdissection (LMD) technique. To isolate tissue spots, our LMD system uses a 808-nm near infrared laser, the diameter of which can be freely changed from 2.7 to 500 μm; for imaging purposes in this study, the diameter was fixed at 40 μm, allowing acquisition of LC-MS/MS images at a 40-μm resolution. The isolated spots are arranged on a thermal film at 4.5-mm intervals, corresponding to the well spacing on a 384-well plate. Each tissue spot is handled on the film in such a manner as to maintain its spatial information, allowing it to be extracted separately in its individual well. Using analytical LC-MS/MS in combination with the spatial information of each sample, we can reconstruct LC-MS/MS images. With this imaging technique, we successfully obtained the distributions of pilocarpine, glutamate, γ-aminobutyric acid, acetylcholine, and choline in a cross-section of mouse hippocampus. The protocol we established in this study is applicable to revealing the neurochemistry of pilocarpine model of epilepsy. Our system has a wide range of uses in fields such as biology, pharmacology, pathology, and neuroscience. Graphical abstract Schematic Indication of LMD-LC-MS/MS imaging.
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Affiliation(s)
- Michiko Oya
- Department of Brain Function, Division of Stress Adaptation and Protection, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan.,Departments of Molecular Pharmacokinetics, Nagoya University Graduate School of Medicine, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan
| | - Hiromi Suzuki
- Department of Brain Function, Division of Stress Adaptation and Protection, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan. .,Departments of Molecular Pharmacokinetics, Nagoya University Graduate School of Medicine, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan.
| | - Andrea Roxanne J Anas
- Department of Brain Function, Division of Stress Adaptation and Protection, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan
| | - Koichi Oishi
- Department of Brain Function, Division of Stress Adaptation and Protection, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan
| | - Kenji Ono
- Department of Brain Function, Division of Stress Adaptation and Protection, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan.,Departments of Molecular Pharmacokinetics, Nagoya University Graduate School of Medicine, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan
| | - Shun Yamaguchi
- Division of Morphological Neuroscience, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences, Gifu University, Gifu, 501-1194, Japan
| | - Megumi Eguchi
- Division of Morphological Neuroscience, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan
| | - Makoto Sawada
- Department of Brain Function, Division of Stress Adaptation and Protection, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan.,Departments of Molecular Pharmacokinetics, Nagoya University Graduate School of Medicine, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan
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20
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Visualisation of abscisic acid and 12-oxo-phytodienoic acid in immature Phaseolus vulgaris L. seeds using desorption electrospray ionisation-imaging mass spectrometry. Sci Rep 2017; 7:42977. [PMID: 28211480 PMCID: PMC5314351 DOI: 10.1038/srep42977] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/17/2017] [Indexed: 12/21/2022] Open
Abstract
The plant hormone abscisic acid (ABA) and the jasmonic acid related-compound 12-oxo-phytodienoic acid (OPDA) play crucial roles in seed development, dormancy, and germination. However, a lack of suitable techniques for visualising plant hormones has restricted the investigation of their biological mechanisms. In the present study, desorption electrospray ionisation-imaging mass spectrometry (DESI-IMS), a powerful tool for visualising metabolites in biological tissues, was used to visualise ABA and OPDA in immature Phaseolus vulgaris L. seed sections. The mass spectra, peak values and chemical formulae obtained from the analysis of seed sections were consistent with those determined for ABA and OPDA standards, as were the precursor and major fragment ions observed in tandem mass spectrometry (MS/MS) imaging. Furthermore, the precursor and fragment ion images showed similar distribution patterns. In addition, the localisation of ABA and OPDA using DESI-IMS was confirmed using liquid chromatography-MS/MS (LC-MS/MS). The results indicated that ABA was mainly distributed in the radical and cotyledon of the embryo, whereas OPDA was distributed exclusively in external structures, such as the hilum and seed coat. The present study is the first to report the visualisation of plant hormones using IMS, and demonstrates that DESI-IMS is a promising technique for future plant hormone research.
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21
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Fernandes AMAP, Vendramini PH, Galaverna R, Schwab NV, Alberici LC, Augusti R, Castilho RF, Eberlin MN. Direct Visualization of Neurotransmitters in Rat Brain Slices by Desorption Electrospray Ionization Mass Spectrometry Imaging (DESI - MS). JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:1944-1951. [PMID: 27704473 DOI: 10.1007/s13361-016-1475-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/30/2016] [Accepted: 07/31/2016] [Indexed: 05/12/2023]
Abstract
Mass spectrometry imaging (MSI) of neurotransmitters has so far been mainly performed by matrix-assisted laser desorption/ionization (MALDI) where derivatization reagents, deuterated matrix and/or high resolution, or tandem MS have been applied to circumvent problems with interfering ion peaks from matrix and from isobaric species. We herein describe the application of desorption electrospray ionization mass spectrometry imaging (DESI)-MSI in rat brain coronal and sagittal slices for direct spatial monitoring of neurotransmitters and choline with no need of derivatization reagents and/or deuterated materials. The amino acids γ-aminobutyric (GABA), glutamate, aspartate, serine, as well as acetylcholine, dopamine, and choline were successfully imaged using a commercial DESI source coupled to a hybrid quadrupole-Orbitrap mass spectrometer. The spatial distribution of the analyzed compounds in different brain regions was determined. We conclude that the ambient matrix-free DESI-MSI is suitable for neurotransmitter imaging and could be applied in studies that involve evaluation of imbalances in neurotransmitters levels. Graphical Abstract ᅟ.
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Affiliation(s)
- Anna Maria A P Fernandes
- Thomson Mass Spectrometry Laboratory, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil.
| | - Pedro H Vendramini
- Thomson Mass Spectrometry Laboratory, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | | | - Nicolas V Schwab
- Thomson Mass Spectrometry Laboratory, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Luciane C Alberici
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Rodinei Augusti
- Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Roger F Castilho
- Departamento de Patologia Clínica, Faculdade de Ciências Médicas, UNICAMP, Campinas, SP, Brazil
| | - Marcos N Eberlin
- Thomson Mass Spectrometry Laboratory, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil.
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22
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Shimma S, Kumada HO, Taniguchi H, Konno A, Yao I, Furuta K, Matsuda T, Ito S. Microscopic visualization of testosterone in mouse testis by use of imaging mass spectrometry. Anal Bioanal Chem 2016; 408:7607-7615. [PMID: 27230625 DOI: 10.1007/s00216-016-9594-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 04/16/2016] [Accepted: 04/20/2016] [Indexed: 10/21/2022]
Abstract
Testosterone is one of the androgens synthesized from cholesterol as a precursor in the Leydig cells of testes. Since the ionization efficiency of testosterone in matrix-assisted laser desorption ionization (MALDI) is quite low, visualization of testosterone by using MALDI-imaging mass spectrometry (MALDI-IMS) has been considered difficult. To overcome this problem, we used two types of on-tissue derivatization techniques, which were achieved by pyridine sulfur trioxide and Girard's T (GT) reagent, to introduce a polar group into testosterone molecule with the aim to increase the sensitivity. Derivatization by use of GT reagent provided excellent results, superior to those obtained with pyridine sulfur trioxide, in terms of ionization efficiency, molecular specificity, and tissue damage. In GT derivatized testis tissues of mice treated with human chorionic gonadotropin (hCG), testosterone was broadly observed both inside and outside the seminiferous tubules by using an iMScope. To evaluate our imaging results, we performed quantification experiments of underivatized testosterone extracted from hCG-treated testes and control testes using LC-MS/MS. We confirmed the 256-fold concentration change between hCG-treated tissues and control tissues. We also confirmed the 228-fold change in detected peak intensities between hCG-treated tissue sections and control tissue sections in imaging results. We consider our tissue preparation methods for IMS provide high sensitivity with high precision. In addition, high-spatial definition IMS was also available, and we confirmed testosterone had mainly accumulated on the surface of the Leydig cells. Graphical abstract Girard's T-testosterone (GT-Ts) provides the fragment ion at m/z 343.24. Clear GT-Ts signal was detected in hCG treated mouse testis not only as spectra but also as a mass image.
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Affiliation(s)
- Shuichi Shimma
- Division of Advanced Science and Biotechnology, Graduate School of Engineering of Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Henri-Obadja Kumada
- Department of Medical Chemistry, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka, 573-1010, Japan
| | - Hisanori Taniguchi
- Department of Medical Chemistry, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka, 573-1010, Japan.,Department of Urology and Andrology, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka, 573-1010, Japan
| | - Alu Konno
- Department of Optical Imaging, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.,JST, ERATO, Sato project, Tokyo, 160-8582, Japan
| | - Ikuko Yao
- Department of Medical Chemistry, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka, 573-1010, Japan.,Department of Optical Imaging, Institute for Medical Photonics Research, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.,JST, ERATO, Sato project, Tokyo, 160-8582, Japan
| | - Kyoji Furuta
- Regeneration and Advanced Medical Science, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1193, Japan
| | - Tadashi Matsuda
- Department of Urology and Andrology, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka, 573-1010, Japan
| | - Seiji Ito
- Department of Medical Chemistry, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka, 573-1010, Japan.
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23
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Bergman HM, Lundin E, Andersson M, Lanekoff I. Quantitative mass spectrometry imaging of small-molecule neurotransmitters in rat brain tissue sections using nanospray desorption electrospray ionization. Analyst 2016; 141:3686-95. [DOI: 10.1039/c5an02620b] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nano-DESI mass spectrometry imaging enables quantitative imaging of small-molecule neurotransmitters which are essential to the function of the nervous system.
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Affiliation(s)
| | - Erik Lundin
- Department of Chemistry-BMC
- Uppsala University
- Uppsala
- Sweden
| | - Malin Andersson
- Department of Pharmaceutical Biosciences
- Uppsala University
- Uppsala
- Sweden
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24
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Esteve C, Tolner EA, Shyti R, van den Maagdenberg AMJM, McDonnell LA. Mass spectrometry imaging of amino neurotransmitters: a comparison of derivatization methods and application in mouse brain tissue. Metabolomics 2016; 12:30. [PMID: 26793043 PMCID: PMC4705126 DOI: 10.1007/s11306-015-0926-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 09/19/2015] [Indexed: 12/12/2022]
Abstract
The detection of small polar compounds such as amino neurotransmitters by MALDI mass spectrometry imaging has been hindered by low-detection sensitivity and background interferences. Recently, several of on-tissue chemical derivatization strategies have been independently reported that enable their detection. Here, we present a comparison between these methods, and demonstrate the visualization of the distributions of up to 23 amino metabolites in tissue. We applied this methodology to detect alterations of these compounds after inducing an experimental cortical spreading depression in mouse brain, which causes profound transient alterations in key neurotransmitters in one hemisphere and is relevant for migraine and various other neurological disorders.
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Affiliation(s)
- Clara Esteve
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
| | - Else A. Tolner
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Reinald Shyti
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Arn M. J. M. van den Maagdenberg
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Liam A. McDonnell
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
- Fondazione Pisana per la Scienza ONLUS, Pisa, Italy
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25
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Tillmaand EG, Yang N, Kindt CAC, Romanova EV, Rubakhin SS, Sweedler JV. Peptidomics and Secretomics of the Mammalian Peripheral Sensory-Motor System. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2015; 26:2051-2061. [PMID: 26392278 PMCID: PMC4655166 DOI: 10.1007/s13361-015-1256-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/30/2015] [Accepted: 08/10/2015] [Indexed: 06/01/2023]
Abstract
The dorsal root ganglion (DRG) and its anatomically and functionally associated spinal nerve and ventral and dorsal roots are important components of the peripheral sensory-motor system in mammals. The cells within these structures use a number of peptides as intercellular signaling molecules. We performed a variety of mass spectrometry (MS)-based characterizations of peptides contained within and secreted from these structures, and from isolated and cultured DRG cells. Liquid chromatography-Fourier transform MS was utilized in DRG and nerve peptidome analysis. In total, 2724 peptides from 296 proteins were identified in tissue extracts. Neuropeptides are among those detected, including calcitonin gene-related peptide I, little SAAS, and known hemoglobin-derived peptides. Solid phase extraction combined with direct matrix-assisted laser desorption/ionization time-of-flight MS was employed to investigate the secretome of these structures. A number of peptides were detected in the releasate from semi-intact preparations of DRGs and associated nerves, including neurofilament- and myelin basic protein-related peptides. A smaller set of analytes was observed in releasates from cultured DRG neurons. The peptide signals observed in the releasates have been mass-matched to those characterized and identified in homogenates of entire DRGs and associated nerves. This data aids our understanding of the chemical composition of the mammalian peripheral sensory-motor system, which is involved in key physiological functions such as nociception, thermoreception, itch sensation, and proprioception.
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Affiliation(s)
- Emily G Tillmaand
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Ning Yang
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Callie A C Kindt
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Elena V Romanova
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Stanislav S Rubakhin
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Jonathan V Sweedler
- Department of Chemistry and the Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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26
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Sugiyama E, Masaki N, Matsushita S, Setou M. Ammonium Sulfate Improves Detection of Hydrophilic Quaternary Ammonium Compounds through Decreased Ion Suppression in Matrix-Assisted Laser Desorption/Ionization Imaging Mass Spectrometry. Anal Chem 2015; 87:11176-81. [DOI: 10.1021/acs.analchem.5b02672] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Eiji Sugiyama
- Department
of Cell Biology
and Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku Hamamatsu, Shizuoka, 431-3192, Japan
| | - Noritaka Masaki
- Department
of Cell Biology
and Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku Hamamatsu, Shizuoka, 431-3192, Japan
| | - Shoko Matsushita
- Department
of Cell Biology
and Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku Hamamatsu, Shizuoka, 431-3192, Japan
| | - Mitsutoshi Setou
- Department
of Cell Biology
and Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku Hamamatsu, Shizuoka, 431-3192, Japan
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Sugiura Y, Honda K, Suematsu M. Development of an Imaging Mass Spectrometry Technique for Visualizing Localized Cellular Signaling Mediators in Tissues. ACTA ACUST UNITED AC 2015; 4:A0040. [PMID: 26819911 DOI: 10.5702/massspectrometry.a0040] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 06/02/2015] [Indexed: 11/23/2022]
Abstract
In vivo concentrations of cellular signaling mediators such as inflammatory mediators are normally maintained at very low levels due to their strong ability to induce a biological response. The production, diffusion, and decomposition of such mediators are spatio-temporally regulated. Therefore, in order to understand biochemical basis of disease progression and develop new therapeutic strategies, it is important to understand the spatiotemporal dynamics of the signaling mediators in vivo, during the progression of disorders, e.g., chronic inflammatory diseases; however, the lack of effective imaging technology has made it difficult to determine their localizations in vivo. Such characterization requires technical breakthroughs, including molecular imaging methods that are sensitive enough to detect low levels of metabolites in the heterogeneous tissue regions in diseased organs. We and other groups have attempted to fill this technical gap by developing highly sensitive imaging mass spectrometry (IMS) technologies. To date, we have established two key techniques toward this goal, including (i) a sample preparation procedure that has eliminated the problem of the postmortem degradation of labile metabolites, and (ii) on-tissue derivatization of metabolites, which can enhance analyte ionization efficiency. Here, we review recent progress in the development of these technologies as well as how the highly sensitive IMS technique has contributed to increasing understanding of the biochemical basis of disease mechanisms, discovery of new diagnostic markers, and development of new therapies.
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Affiliation(s)
- Yuki Sugiura
- Department of Biochemistry, Keio University School of Medicine; JST Precursory Research for Embryonic Science and Technology (PRESTO) Project
| | - Kurara Honda
- Department of Biochemistry, Keio University School of Medicine
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine; Japan Science and Technology Agency, Exploratory Research for Advanced Technology (ERATO)
Suematsu Gas Biology Project
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28
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Thermal inactivation of enzymes and pathogens in biosamples for MS analysis. Bioanalysis 2015; 7:1885-99. [DOI: 10.4155/bio.15.122] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Protein denaturation is the common basis for enzyme inactivation and inactivation of pathogens, necessary for preservation and safe handling of biosamples for downstream analysis. While heat-stabilization technology has been used in proteomic and peptidomic research since its introduction in 2009, the advantages of using the technique for simultaneous pathogen inactivation have only recently been addressed. The time required for enzyme inactivation by heat (≈1 min) is short compared with chemical treatments, and inactivation is irreversible in contrast to freezing. Heat stabilization thus facilitates mass spectrometric studies of biomolecules with a fast conversion rate, and expands the chemical space of potential biomarkers to include more short-lived entities, such as phosphorylated proteins, in tissue samples as well as whole-blood (dried blood sample) samples.
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29
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Ek CJ, D'Angelo B, Baburamani AA, Lehner C, Leverin AL, Smith PLP, Nilsson H, Svedin P, Hagberg H, Mallard C. Brain barrier properties and cerebral blood flow in neonatal mice exposed to cerebral hypoxia-ischemia. J Cereb Blood Flow Metab 2015; 35:818-27. [PMID: 25627141 PMCID: PMC4420855 DOI: 10.1038/jcbfm.2014.255] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 12/05/2014] [Accepted: 12/08/2014] [Indexed: 11/09/2022]
Abstract
Insults to the developing brain often result in irreparable damage resulting in long-term deficits in motor and cognitive functions. The only treatment today for hypoxic-ischemic encephalopathy (HIE) in newborns is hypothermia, which has limited clinical benefit. We have studied changes to the blood-brain barriers (BBB) as well as regional cerebral blood flow (rCBF) in a neonatal model of HIE to further understand the underlying pathologic mechanisms. Nine-day old mice pups, brain roughly equivalent to the near-term human fetus, were subjected to hypoxia-ischemia. Hypoxia-ischemia increased BBB permeability to small and large molecules within hours after the insult, which normalized in the following days. The opening of the BBB was associated with changes to BBB protein expression whereas gene transcript levels were increased showing direct molecular damage to the BBB but also suggesting compensatory mechanisms. Brain pathology was closely related to reductions in rCBF during the hypoxia as well as the areas with compromised BBB showing that these are intimately linked. The transient opening of the BBB after the insult is likely to contribute to the pathology but at the same time provides an opportunity for therapeutics to better reach the infarcted areas in the brain.
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Affiliation(s)
- C Joakim Ek
- Department of Physiology, Institute for Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Barbara D'Angelo
- Department of Physiology, Institute for Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ana A Baburamani
- 1] Department of Physiology, Institute for Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden [2] Centre for the Developing Brain, Division of Imaging Sciences and Biomedical Engineering, King's College London, King's Health Partners, St. Thomas' Hospital, London, UK
| | - Christine Lehner
- Spinal Cord Injury and Tissue Regeneration Center Salzburg, Department of Traumatology and Sport Injuries, Institute of Tendon and Bone Regeneration, Paracelsus Medical University, Salzburg, Austria; Austrian Cluster for Tissue Regeneration
| | - Anna-Lena Leverin
- Department of Physiology, Institute for Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter L P Smith
- Department of Physiology, Institute for Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Holger Nilsson
- Department of Physiology, Institute for Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Pernilla Svedin
- Department of Physiology, Institute for Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Henrik Hagberg
- 1] Centre for the Developing Brain, Division of Imaging Sciences and Biomedical Engineering, King's College London, King's Health Partners, St. Thomas' Hospital, London, UK [2] Departments of Obstetrics and Gynecology, Institute for Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Carina Mallard
- Department of Physiology, Institute for Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Takenouchi T, Sugiura Y, Morikawa T, Nakanishi T, Nagahata Y, Sugioka T, Honda K, Kubo A, Hishiki T, Matsuura T, Hoshino T, Takahashi T, Suematsu M, Kajimura M. Therapeutic hypothermia achieves neuroprotection via a decrease in acetylcholine with a concurrent increase in carnitine in the neonatal hypoxia-ischemia. J Cereb Blood Flow Metab 2015; 35:794-805. [PMID: 25586144 PMCID: PMC4420853 DOI: 10.1038/jcbfm.2014.253] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 12/15/2014] [Accepted: 12/15/2014] [Indexed: 01/27/2023]
Abstract
Although therapeutic hypothermia is known to improve neurologic outcomes after perinatal cerebral hypoxia-ischemia, etiology remains unknown. To decipher the mechanisms whereby hypothermia regulates metabolic dynamics in different brain regions, we used a two-step approach: a metabolomics to target metabolic pathways responding to cooling, and a quantitative imaging mass spectrometry to reveal spatial alterations in targeted metabolites in the brain. Seven-day postnatal rats underwent the permanent ligation of the left common carotid artery followed by exposure to 8% O2 for 2.5 hours. The pups were returned to normoxic conditions at either 38 °C or 30 °C for 3 hours. The brain metabolic states were rapidly fixed using in situ freezing. The profiling of 107 metabolites showed that hypothermia diminishes the carbon biomass related to acetyl moieties, such as pyruvate and acetyl-CoA; conversely, it increases deacetylated metabolites, such as carnitine and choline. Quantitative imaging mass spectrometry demarcated that hypothermia diminishes the acetylcholine contents specifically in hippocampus and amygdala. Such decreases were associated with an inverse increase in carnitine in the same anatomic regions. These findings imply that hypothermia achieves its neuroprotective effects by mediating the cellular acetylation status through a coordinated suppression of acetyl-CoA, which resides in metabolic junctions of glycolysis, amino-acid catabolism, and ketolysis.
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Affiliation(s)
- Toshiki Takenouchi
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Yuki Sugiura
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Precursory Research for Embryonic Science and Technology (PRESTO) Project, Tokyo, Japan
| | - Takayuki Morikawa
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Exploratory Research for Advanced Technology (ERATO) Suematsu Gas Biology Project, Tokyo, Japan
| | - Tsuyoshi Nakanishi
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] MS Business Unit, Shimadzu Corporation, Tokyo, Japan
| | - Yoshiko Nagahata
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Exploratory Research for Advanced Technology (ERATO) Suematsu Gas Biology Project, Tokyo, Japan
| | - Tadao Sugioka
- Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan
| | - Kurara Honda
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Precursory Research for Embryonic Science and Technology (PRESTO) Project, Tokyo, Japan
| | - Akiko Kubo
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Exploratory Research for Advanced Technology (ERATO) Suematsu Gas Biology Project, Tokyo, Japan
| | - Takako Hishiki
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Exploratory Research for Advanced Technology (ERATO) Suematsu Gas Biology Project, Tokyo, Japan
| | - Tomomi Matsuura
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Exploratory Research for Advanced Technology (ERATO) Suematsu Gas Biology Project, Tokyo, Japan
| | - Takao Hoshino
- Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan
| | - Takao Takahashi
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Makoto Suematsu
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Exploratory Research for Advanced Technology (ERATO) Suematsu Gas Biology Project, Tokyo, Japan
| | - Mayumi Kajimura
- 1] Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan [2] JST Exploratory Research for Advanced Technology (ERATO) Suematsu Gas Biology Project, Tokyo, Japan
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31
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He J, Luo Z, Huang L, He J, Chen Y, Rong X, Jia S, Tang F, Wang X, Zhang R, Zhang J, Shi J, Abliz Z. Ambient mass spectrometry imaging metabolomics method provides novel insights into the action mechanism of drug candidates. Anal Chem 2015; 87:5372-9. [PMID: 25874739 DOI: 10.1021/acs.analchem.5b00680] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Elucidation of the mechanism of action for drug candidates is fundamental to drug development, and it is strongly facilitated by metabolomics. Herein, we developed an imaging metabolomics method based on air-flow-assisted desorption electrospray ionization mass spectrometry imaging (AFADESI-MSI) under ambient conditions. This method was subsequently applied to simultaneously profile a novel anti-insomnia drug candidate, N(6)-(4-hydroxybenzyl)-adenosine (NHBA), and various endogenous metabolites in rat whole-body tissue sections after the administration of NHBA. The principal component analysis (PCA) represented by an intuitive color-coding scheme based on hyperspectral imaging revealed in situ molecular profiling alterations in response to stimulation of NHBA, which are in a very low intensity and hidden in massive interferential peaks. We found that the abundance of six endogenous metabolites changed after drug administration. The spatiotemporal distribution indicated that five altered molecules—including neurotransmitter γ-aminobutyric acid, neurotransmitter precursors choline and glycerophosphocholine, energy metabolism-related molecules adenosine (an endogenous sleep factor), and creatine—are closely associated with insomnia or other neurological disorders. These findings not only provide insights into a deep understanding on the mechanism of action of NHBA, but also demonstrate that the AFADESI-MSI-based imaging metabolomics is a powerful technique to investigate the molecular mechanism of drug action, especially for drug candidates with multitarget or undefined target in the preclinical study stage.
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Affiliation(s)
- Jingjing He
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Zhigang Luo
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Lan Huang
- §Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, People's Republic of China
| | - Jiuming He
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Yi Chen
- ‡State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Xianfang Rong
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Shaobo Jia
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Fei Tang
- ‡State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Xiaohao Wang
- ‡State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Ruiping Zhang
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Jianjun Zhang
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Jiangong Shi
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Zeper Abliz
- †State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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Reductions of docosahexaenoic acid-containing phosphatidylcholine levels in the anterior horn of an ALS mouse model. Neuroscience 2015; 297:127-36. [PMID: 25841322 DOI: 10.1016/j.neuroscience.2015.03.060] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/19/2015] [Accepted: 03/25/2015] [Indexed: 12/31/2022]
Abstract
In this study, we analyzed the spatiotemporal alterations of phospholipid composition in the spinal cord of an amyotrophic lateral sclerosis (ALS) mouse model (G93A-mutated human superoxide dismutase 1 transgenic mice [SOD1(G93A) mice]) using imaging mass spectrometry (IMS), a powerful method to visualize spatial distributions of various types of molecules in situ. Using this technique, we deciphered the phospholipid distribution in the pre-symptomatic stage, early stage after disease onset, and terminal stages of disease in female SOD1(G93A) mouse spinal cords. These experiments revealed a significant decrease in levels of docosahexaenoic acid (DHA)-containing phosphatidylcholines (PCs), such as PC (diacyl-16:0/22:6), PC (diacyl-18:0/22:6), and PC (diacyl-18:1/22:6) in the L5 anterior horns of terminal stage (22-week-old) SOD1(G93A) mice. The reduction in PC (diacyl-16:0/22:6) level could be reflecting the loss of motor neurons themselves in the anterior horn of the spinal cord in ALS model mice. In contrast, other PCs, such as PC (diacyl-16:0/16:0), were observed specifically in the L5 dorsal horn gray matter, and their levels did not vary between ALS model mice and controls. Thus, our study showed a significant decrease in DHA-containing PCs, but not other PCs, in the terminal stage of ALS in model mice, which is likely to be a reflection of neuronal loss in the anterior horns of the spinal cords. Given its enrichment in dorsal sensory regions, the preservation of PC (diacyl-16:0/16:0) may be the result of spinal sensory neurons being unaffected in ALS. Taken together, these findings suggest that ALS spinal cords show significant alterations in PC metabolism only at the terminal stage of the disease, and that these changes are confined to specific anatomical regions and cell types.
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33
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In situ drug and metabolite analysis [corrected] in biological and clinical research by MALDI MS imaging. Bioanalysis 2015; 6:1241-53. [PMID: 24946924 DOI: 10.4155/bio.14.88] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
In recent years the analysis in mass spectrometry (MS) [corrected] imaging has been expanded to detect a wide variety of low molecular weight compounds (LMWC), including exogenous and endogenous compounds. The high sensitivity and selectivity of MS imaging combined with visualization of molecular spatial distribution in tissues, makes it a valuable [corrected] platform in targeted drug and untargeted metabolomic analysis [corrected] in biological and clinical research. Here, we review the current and potential applications of MALDI MS imaging in these areas. The aim of advancing MALDI MS imaging in the field of LMWC is to support clinical applications by understanding drug and drug-metabolite distribution, investigating toxicity and discovering [corrected] new biomarkers.
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34
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Romero-Perez GA, Takei S, Yao I. Imaging Mass Spectrometric Analysis of Neurotransmitters: A Review. Mass Spectrom (Tokyo) 2015; 3:S0049. [PMID: 26819893 PMCID: PMC4353836 DOI: 10.5702/massspectrometry.s0049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 01/22/2015] [Indexed: 01/19/2023] Open
Abstract
Imaging mass spectrometry (IMS) is a toolbox of versatile techniques that enable us to investigate analytes in samples at molecular level. In recent years, IMS, and especially matrix-assisted laser desorption/ionisation (MALDI), has been used to visualise a wide range of metabolites in biological samples. Simultaneous visualisation of the spatial distribution of metabolites in a single sample with little tissue disruption can be considered as one important advantage of MALDI over other techniques. However, several technical hurdles including low concentrations and rapid degradation rates of small molecule metabolites, matrix interference of signals and poor ionisation, need to be addressed before MALDI can be considered as a reliable tool for the analysis of metabolites such as neurotransmitters in brain tissues from different sources including humans. In the present review we will briefly describe current MALDI IMS techniques used to study neurotransmitters and discuss their current status, challenges, as well as future prospects.
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Affiliation(s)
| | | | - Ikuko Yao
- Hamamatsu University School of Medicine
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35
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Shariatgorji M, Nilsson A, Goodwin RJA, Källback P, Schintu N, Zhang X, Crossman AR, Bezard E, Svenningsson P, Andren PE. Direct targeted quantitative molecular imaging of neurotransmitters in brain tissue sections. Neuron 2014; 84:697-707. [PMID: 25453841 DOI: 10.1016/j.neuron.2014.10.011] [Citation(s) in RCA: 164] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2014] [Indexed: 01/10/2023]
Abstract
Current neuroimaging techniques have very limited abilities to directly identify and quantify neurotransmitters from brain sections. We have developed a molecular-specific approach for the simultaneous imaging and quantitation of multiple neurotransmitters, precursors, and metabolites, such as tyrosine, tryptamine, tyramine, phenethylamine, dopamine, 3-methoxytyramine, serotonin, GABA, glutamate, acetylcholine, and L-alpha-glycerylphosphorylcholine, in histological tissue sections at high spatial resolutions. The method is employed to directly measure changes in the absolute and relative levels of neurotransmitters in specific brain structures in animal disease models and in response to drug treatments, demonstrating the power of mass spectrometry imaging in neuroscience.
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Affiliation(s)
- Mohammadreza Shariatgorji
- Biomolecular Imaging and Proteomics, National Center for Mass Spectrometry Imaging, Department of Pharmaceutical Biosciences, Uppsala University, P.O. Box 591 BMC, 75124 Uppsala, Sweden
| | - Anna Nilsson
- Biomolecular Imaging and Proteomics, National Center for Mass Spectrometry Imaging, Department of Pharmaceutical Biosciences, Uppsala University, P.O. Box 591 BMC, 75124 Uppsala, Sweden
| | - Richard J A Goodwin
- Biomolecular Imaging and Proteomics, National Center for Mass Spectrometry Imaging, Department of Pharmaceutical Biosciences, Uppsala University, P.O. Box 591 BMC, 75124 Uppsala, Sweden; AstraZeneca R&D, Alderley Park, Macclesfield, Cheshire SK10 4TF, UK
| | - Patrik Källback
- Biomolecular Imaging and Proteomics, National Center for Mass Spectrometry Imaging, Department of Pharmaceutical Biosciences, Uppsala University, P.O. Box 591 BMC, 75124 Uppsala, Sweden
| | - Nicoletta Schintu
- Center for Molecular Medicine, Department of Neurology and Clinical Neuroscience, Karolinska Institutet and Karolinska University Hospital, 17176 Stockholm, Sweden
| | - Xiaoqun Zhang
- Center for Molecular Medicine, Department of Neurology and Clinical Neuroscience, Karolinska Institutet and Karolinska University Hospital, 17176 Stockholm, Sweden
| | - Alan R Crossman
- Faculty of Life Sciences, University of Manchester, Manchester M13 9PL, UK
| | - Erwan Bezard
- Université de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293 Bordeaux, France
| | - Per Svenningsson
- Center for Molecular Medicine, Department of Neurology and Clinical Neuroscience, Karolinska Institutet and Karolinska University Hospital, 17176 Stockholm, Sweden
| | - Per E Andren
- Biomolecular Imaging and Proteomics, National Center for Mass Spectrometry Imaging, Department of Pharmaceutical Biosciences, Uppsala University, P.O. Box 591 BMC, 75124 Uppsala, Sweden.
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Junot C, Fenaille F, Colsch B, Bécher F. High resolution mass spectrometry based techniques at the crossroads of metabolic pathways. MASS SPECTROMETRY REVIEWS 2014; 33:471-500. [PMID: 24288070 DOI: 10.1002/mas.21401] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 05/14/2013] [Accepted: 05/15/2013] [Indexed: 06/02/2023]
Abstract
The metabolome is the set of small molecular mass compounds found in biological media, and metabolomics, which refers to as the analysis of metabolome in a given biological condition, deals with the large scale detection and quantification of metabolites in biological media. It is a data driven and multidisciplinary approach combining analytical chemistry for data acquisition, and biostatistics, informatics and biochemistry for mining and interpretation of these data. Since the middle of the 2000s, high resolution mass spectrometry is widely used in metabolomics, mainly because the detection and identification of metabolites are improved compared to low resolution instruments. As the field of HRMS is quickly and permanently evolving, the aim of this work is to review its use in different aspects of metabolomics, including data acquisition, metabolite annotation, identification and quantification. At last, we would like to show that, thanks to their versatility, HRMS instruments are the most appropriate to achieve optimal metabolome coverage, at the border of other omics fields such as lipidomics and glycomics.
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Affiliation(s)
- Christophe Junot
- Commissariat à l'Energie Atomique, Centre de Saclay, DSV/iBiTec-S/SPI, Laboratoire d'Etude du Métabolisme des Médicaments, 91191, Gif-sur-Yvette Cedex, France
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37
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Challenges and recent advances in mass spectrometric imaging of neurotransmitters. Bioanalysis 2014; 6:525-40. [PMID: 24568355 DOI: 10.4155/bio.13.341] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mass spectrometric imaging (MSI) is a powerful tool that grants the ability to investigate a broad mass range of molecules, from small molecules to large proteins, by creating detailed distribution maps of selected compounds. To date, MSI has demonstrated its versatility in the study of neurotransmitters and neuropeptides of different classes toward investigation of neurobiological functions and diseases. These studies have provided significant insight in neurobiology over the years and current technical advances are facilitating further improvements in this field. Herein, we briefly review new MSI studies of neurotransmitters, focusing specifically on the challenges and recent advances of MSI of neurotransmitters.
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Abstract
To fully understand the drug mechanism of action of new chemical entities, pharmacologists need to acquire confident and precise data in pharmacokinetics and in pharmacodynamics and build strong pharmacokinetic/pharmacodynamic relationships. Target engagement in evaluating new chemical entities provides the basis for treatment efficacy. Classical technologies are sometimes limited or inefficient to provide these precise data; however, label-free MS imaging technology is able to provide these molecular features, spatial distributions, quantification and metabolomics data. Important considerations for imaging biological sections are described. Various applications in pharmacology are presented across different therapeutic areas, where MS imaging answers crucial drug discovery and preclinical development needs.
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Takahashi T, Ohnishi H, Sugiura Y, Honda K, Suematsu M, Kawasaki T, Deguchi T, Fujii T, Orihashi K, Hippo Y, Watanabe T, Yamagaki T, Yuba S. Non‐neuronal acetylcholine as an endogenous regulator of proliferation and differentiation of Lgr5‐positive stem cells in mice. FEBS J 2014; 281:4672-90. [DOI: 10.1111/febs.12974] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 07/22/2014] [Accepted: 08/14/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Toshio Takahashi
- Suntory Foundation for Life Sciences Bioorganic Research Institute Osaka Japan
| | - Hiroe Ohnishi
- National Institute of Advanced Industrial Science and Technology Hyogo Japan
| | - Yuki Sugiura
- Department of Biochemistry School of Medicine Keio University Tokyo Japan
- Precursory Research for Embryonic Science and Technology Tokyo Japan
| | - Kurara Honda
- Department of Biochemistry School of Medicine Keio University Tokyo Japan
- Precursory Research for Embryonic Science and Technology Tokyo Japan
| | - Makoto Suematsu
- Department of Biochemistry School of Medicine Keio University Tokyo Japan
- Japan Science Technology Agency Exploratory Research for Advanced Technology Suematsu Gas Biology Project Tokyo Japan
| | - Takashi Kawasaki
- National Institute of Advanced Industrial Science and Technology Hyogo Japan
| | - Tomonori Deguchi
- National Institute of Advanced Industrial Science and Technology Hyogo Japan
| | - Takeshi Fujii
- Department of Pharmacology Faculty of Pharmaceutical Sciences Doshisha Women's College of Liberal Arts Kyoto Japan
| | - Kaoru Orihashi
- Division of Cancer Development System National Cancer Research Institute Tokyo Japan
| | - Yoshitaka Hippo
- Division of Cancer Development System National Cancer Research Institute Tokyo Japan
| | - Takehiro Watanabe
- Suntory Foundation for Life Sciences Bioorganic Research Institute Osaka Japan
| | - Tohru Yamagaki
- Suntory Foundation for Life Sciences Bioorganic Research Institute Osaka Japan
| | - Shunsuke Yuba
- National Institute of Advanced Industrial Science and Technology Hyogo Japan
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40
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Manier ML, Spraggins JM, Reyzer ML, Norris JL, Caprioli RM. A derivatization and validation strategy for determining the spatial localization of endogenous amine metabolites in tissues using MALDI imaging mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:665-73. [PMID: 25044893 PMCID: PMC4126081 DOI: 10.1002/jms.3411] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 06/03/2014] [Accepted: 06/12/2014] [Indexed: 05/18/2023]
Abstract
Imaging mass spectrometry (IMS) studies increasingly focus on endogenous small molecular weight metabolites and consequently bring special analytical challenges. Since analytical tissue blanks do not exist for endogenous metabolites, careful consideration must be given to confirm molecular identity. Here, we present approaches for the improvement in detection of endogenous amine metabolites such as amino acids and neurotransmitters in tissues through chemical derivatization and matrix-assisted laser desorption/ionization (MALDI) IMS. Chemical derivatization with 4-hydroxy-3-methoxycinnamaldehyde (CA) was used to improve sensitivity and specificity. CA was applied to the tissue via MALDI sample targets precoated with a mixture of derivatization reagent and ferulic acid as a MALDI matrix. Spatial distributions of chemically derivatized endogenous metabolites in tissue were determined by high-mass resolution and MS(n) IMS. We highlight an analytical strategy for metabolite validation whereby tissue extracts are analyzed by high-performance liquid chromatography (HPLC)-MS/MS to unambiguously identify metabolites and distinguish them from isobaric compounds.
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Affiliation(s)
- M. Lisa Manier
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37232
| | | | - Michelle L. Reyzer
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37232
| | - Jeremy L. Norris
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37232
| | - Richard M. Caprioli
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37232
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Hayasaka T, Goto-Inoue N, Masaki N, Ikegami K, Setou M. Application of 2,5-dihydroxyacetophenone with sublimation provides efficient ionization of lipid species by atmospheric pressure matrix-assisted laser desorption/ionization imaging mass spectrometry. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5592] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takahiro Hayasaka
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1 Handayama, Higashi-ku Hamamatsu Shizuoka 431-3192 Japan
| | - Naoko Goto-Inoue
- Department of Health Promotion Sciences; Tokyo Metropolitan University; 1-1 Minami-Osawa, Hachioji Tokyo 192-0397 Japan
| | - Noritaka Masaki
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1 Handayama, Higashi-ku Hamamatsu Shizuoka 431-3192 Japan
| | - Koji Ikegami
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1 Handayama, Higashi-ku Hamamatsu Shizuoka 431-3192 Japan
| | - Mitsutoshi Setou
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1 Handayama, Higashi-ku Hamamatsu Shizuoka 431-3192 Japan
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42
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MALDI Mass Spectrometry Imaging for Visualizing In Situ Metabolism of Endogenous Metabolites and Dietary Phytochemicals. Metabolites 2014; 4:319-46. [PMID: 24957029 PMCID: PMC4101509 DOI: 10.3390/metabo4020319] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 04/17/2014] [Accepted: 05/04/2014] [Indexed: 01/28/2023] Open
Abstract
Understanding the spatial distribution of bioactive small molecules is indispensable for elucidating their biological or pharmaceutical roles. Mass spectrometry imaging (MSI) enables determination of the distribution of ionizable molecules present in tissue sections of whole-body or single heterogeneous organ samples by direct ionization and detection. This emerging technique is now widely used for in situ label-free molecular imaging of endogenous or exogenous small molecules. MSI allows the simultaneous visualization of many types of molecules including a parent molecule and its metabolites. Thus, MSI has received much attention as a potential tool for pathological analysis, understanding pharmaceutical mechanisms, and biomarker discovery. On the other hand, several issues regarding the technical limitations of MSI are as of yet still unresolved. In this review, we describe the capabilities of the latest matrix-assisted laser desorption/ionization (MALDI)-MSI technology for visualizing in situ metabolism of endogenous metabolites or dietary phytochemicals (food factors), and also discuss the technical problems and new challenges, including MALDI matrix selection and metabolite identification, that need to be addressed for effective and widespread application of MSI in the diverse fields of biological, biomedical, and nutraceutical (food functionality) research.
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43
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Ide Y, Waki M, Ishizaki I, Nagata Y, Yamazaki F, Hayasaka T, Masaki N, Ikegami K, Kondo T, Shibata K, Ogura H, Sanada N, Setou M. Single cell lipidomics of SKBR-3 breast cancer cells by using time-of-flight secondary-ion mass spectrometry. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5523] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yoshimi Ide
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
- Department of Surgery I; Hamamatsu University School of Medicine; Japan
| | - Michihiko Waki
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
| | | | - Yasuyuki Nagata
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
- Oncology Center; Hamamatsu University School of Medicine; Japan
| | - Fumiyoshi Yamazaki
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
| | - Takahiro Hayasaka
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
| | - Noritaka Masaki
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
| | - Koji Ikegami
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
| | - Takeshi Kondo
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
| | - Kiyoshi Shibata
- Equipment Center; Hamamatsu University School of Medicine; Japan
| | - Hiroyuki Ogura
- Department of Surgery I; Hamamatsu University School of Medicine; Japan
| | | | - Mitsutoshi Setou
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
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44
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Nagata Y, Ishizaki I, Waki M, Ide Y, Hossen MA, Ohnishi K, Sanada N, Setou M. Glutaraldehyde fixation method for single-cell lipid analysis by time-of-flight secondary ion-mass spectrometry. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5522] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yasuyuki Nagata
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
- Oncology Center; Hamamatsu University School of Medicine; Japan
| | | | - Michihiko Waki
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
| | - Yoshimi Ide
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
- Department of Surgery I; Hamamatsu University School of Medicine; Japan
| | - Md Amir Hossen
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
| | | | | | - Mitsutoshi Setou
- Department of Cell Biology and Anatomy; Hamamatsu University School of Medicine; 1-20-1, Handayama, Higashi-ku Hamamatsu Shizuoka Japan
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45
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Horn PJ, Chapman KD. Lipidomics in situ: Insights into plant lipid metabolism from high resolution spatial maps of metabolites. Prog Lipid Res 2014; 54:32-52. [DOI: 10.1016/j.plipres.2014.01.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 01/14/2014] [Accepted: 01/14/2014] [Indexed: 12/31/2022]
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46
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Romanova EV, Aerts JT, Croushore CA, Sweedler JV. Small-volume analysis of cell-cell signaling molecules in the brain. Neuropsychopharmacology 2014; 39:50-64. [PMID: 23748227 PMCID: PMC3857641 DOI: 10.1038/npp.2013.145] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 04/26/2013] [Accepted: 05/06/2013] [Indexed: 12/19/2022]
Abstract
Modern science is characterized by integration and synergy between research fields. Accordingly, as technological advances allow new and more ambitious quests in scientific inquiry, numerous analytical and engineering techniques have become useful tools in biological research. The focus of this review is on cutting edge technologies that aid direct measurement of bioactive compounds in the nervous system to facilitate fundamental research, diagnostics, and drug discovery. We discuss challenges associated with measurement of cell-to-cell signaling molecules in the nervous system, and advocate for a decrease of sample volumes to the nanoliter volume regimen for improved analysis outcomes. We highlight effective approaches for the collection, separation, and detection of such small-volume samples, present strategies for targeted and discovery-oriented research, and describe the required technology advances that will empower future translational science.
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Affiliation(s)
- Elena V Romanova
- Beckman Institute for Advanced Science and Technology and the Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Jordan T Aerts
- Beckman Institute for Advanced Science and Technology and the Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
- Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Callie A Croushore
- Beckman Institute for Advanced Science and Technology and the Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Jonathan V Sweedler
- Beckman Institute for Advanced Science and Technology and the Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
- Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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47
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Shariatgorji M, Svenningsson P, Andrén PE. Mass spectrometry imaging, an emerging technology in neuropsychopharmacology. Neuropsychopharmacology 2014; 39:34-49. [PMID: 23966069 PMCID: PMC3857656 DOI: 10.1038/npp.2013.215] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 07/04/2013] [Accepted: 07/08/2013] [Indexed: 01/03/2023]
Abstract
Mass spectrometry imaging is a powerful tool for directly determining the distribution of proteins, peptides, lipids, neurotransmitters, metabolites and drugs in neural tissue sections in situ. Molecule-specific imaging can be achieved using various ionization techniques that are suited to different applications but which all yield data with high mass accuracies and spatial resolutions. The ability to simultaneously obtain images showing the distributions of chemical species ranging from metal ions to macromolecules makes it possible to explore the chemical organization of a sample and to correlate the results obtained with specific anatomical features. The imaging of biomolecules has provided new insights into multiple neurological diseases, including Parkinson's and Alzheimer's disease. Mass spectrometry imaging can also be used in conjunction with other imaging techniques in order to identify correlations between changes in the distribution of important chemical species and other changes in the properties of the tissue. Here we review the applications of mass spectrometry imaging in neuroscience research and discuss its potential. The results presented demonstrate that mass spectrometry imaging is a useful experimental method with diverse applications in neuroscience.
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Affiliation(s)
- Mohammadreza Shariatgorji
- Department of Pharmaceutical Biosciences, Biomolecular Imaging and Proteomics, National Laboratory for Mass Spectrometry Imaging, Uppsala University, Uppsala, Sweden
| | - Per Svenningsson
- Department of Neurology and Clinical Neuroscience, Centre for Molecular Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Per E Andrén
- Department of Pharmaceutical Biosciences, Biomolecular Imaging and Proteomics, National Laboratory for Mass Spectrometry Imaging, Uppsala University, Uppsala, Sweden,Department of Pharmaceutical Biosciences, Biomolecular Imaging and Proteomics, National Laboratory for Mass Spectrometry Imaging, Uppsala University, Box 591, Husargatan 3, Uppsala SE-75124, Sweden, Tel: +46 18 471 7206, Fax: +46 70 167 9334, E-mail:
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48
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Sugiura Y, Honda K, Kajimura M, Suematsu M. Visualization and quantification of cerebral metabolic fluxes of glucose in awake mice. Proteomics 2013; 14:829-38. [PMID: 23970501 DOI: 10.1002/pmic.201300047] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 05/16/2013] [Accepted: 05/27/2013] [Indexed: 11/09/2022]
Abstract
Biotransformation of glucose in organs includes multiple pathways, while quantitative evaluation of percentages of its utilization for individual pathways and their spatial heterogeneity in vivo remain unknown. Imaging MS (IMS) and metabolomics combined with a focused microwave irradiation for rapidly fixing tissue metabolism allowed us to quantify and visualize metabolic fluxes of glucose-derived metabolites in the mouse brain in vivo. At 15 min after the intraperitoneal injection of (13) C6 -labeled glucose, the mouse brain was exposed to focused microwave irradiation, which can stop brain metabolism within 1 s. Quantification of metabolic intermediates containing (13) C atoms revealed that a majority of the (13) C6 -glucose was diverted into syntheses of glutamate, lactate, and uridine diphosphate (UDP)-glucose. IMS showed that regions rich in glutaminergic neurons exhibited a large signal of (13) C2 -labeled glutamate. On the other hand, the midbrain region was enriched with an intensive (13) C6 -labeled UDP-glucose signal, suggesting an active glycogen synthesis. Collectively, application of the current method makes it possible to examine the fluxes of glucose metabolism in a region-specific manner.
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Affiliation(s)
- Yuki Sugiura
- Department of Biochemistry, School of Medicine, Keio University, Tokyo, Japan; Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO) Project, Tokyo, Japan
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49
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Ye H, Wang J, Greer T, Strupat K, Li L. Visualizing neurotransmitters and metabolites in the central nervous system by high resolution and high accuracy mass spectrometric imaging. ACS Chem Neurosci 2013; 4:1049-56. [PMID: 23607816 DOI: 10.1021/cn400065k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The spatial localization and molecular distribution of metabolites and neurotransmitters within biological organisms is of tremendous interest to neuroscientists. In comparison to conventional imaging techniques such as immunohistochemistry, matrix-assisted laser desorption/ionization (MALDI) mass spectrometric imaging (MSI) has demonstrated its unique advantage by directly localizing the distribution of a wide range of biomolecules simultaneously from a tissue specimen. Although MALDI-MSI of metabolites and neurotransmitters is hindered by numerous matrix-derived peaks, high-resolution and high-accuracy mass spectrometers (HRMS) allow differentiation of endogenous analytes from matrix peaks, unambiguously obtaining biomolecular distributions. In this study, we present MSI of metabolites and neurotransmitters in rodent and crustacean central nervous systems acquired on HRMS. Results were compared with those obtained from a medium-resolution mass spectrometer (MRMS), tandem time-of-flight instrument, to demonstrate the power and unique advantages of HRMSI and reveal how this new tool would benefit molecular imaging applications in neuroscience.
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50
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Lietz CB, Gemperline E, Li L. Qualitative and quantitative mass spectrometry imaging of drugs and metabolites. Adv Drug Deliv Rev 2013; 65:1074-85. [PMID: 23603211 DOI: 10.1016/j.addr.2013.04.009] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 03/27/2013] [Accepted: 04/09/2013] [Indexed: 12/26/2022]
Abstract
Mass spectrometric imaging (MSI) has rapidly increased its presence in the pharmaceutical sciences. While quantitative whole-body autoradiography and microautoradiography are the traditional techniques for molecular imaging of drug delivery and metabolism, MSI provides advantageous specificity that can distinguish the parent drug from metabolites and modified endogenous molecules. This review begins with the fundamentals of MSI sample preparation/ionization, and then moves on to both qualitative and quantitative applications with special emphasis on drug discovery and delivery. Cutting-edge investigations on sub-cellular imaging and endogenous signaling peptides are also highlighted, followed by perspectives on emerging technology and the path for MSI to become a routine analysis technique.
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