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Hachem M, Ahmmed MK, Nacir-Delord H. Phospholipidomics in Clinical Trials for Brain Disorders: Advancing our Understanding and Therapeutic Potentials. Mol Neurobiol 2024; 61:3272-3295. [PMID: 37981628 PMCID: PMC11087356 DOI: 10.1007/s12035-023-03793-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 10/31/2023] [Indexed: 11/21/2023]
Abstract
Phospholipidomics is a specialized branch of lipidomics that focuses on the characterization and quantification of phospholipids. By using sensitive analytical techniques, phospholipidomics enables researchers to better understand the metabolism and activities of phospholipids in brain disorders such as Alzheimer's and Parkinson's diseases. In the brain, identifying specific phospholipid biomarkers can offer valuable insights into the underlying molecular features and biochemistry of these diseases through a variety of sensitive analytical techniques. Phospholipidomics has emerged as a promising tool in clinical studies, with immense potential to advance our knowledge of neurological diseases and enhance diagnosis and treatment options for patients. In the present review paper, we discussed numerous applications of phospholipidomics tools in clinical studies, with a particular focus on the neurological field. By exploring phospholipids' functions in neurological diseases and the potential of phospholipidomics in clinical research, we provided valuable insights that could aid researchers and clinicians in harnessing the full prospective of this innovative practice and improve patient outcomes by providing more potent treatments for neurological diseases.
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Affiliation(s)
- Mayssa Hachem
- Department of Chemistry and Healthcare Engineering Innovation Center, Khalifa University of Sciences and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Mirja Kaizer Ahmmed
- Department of Fishing and Post-Harvest Technology, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh
- Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Houda Nacir-Delord
- Department of Chemistry, Khalifa University of Sciences and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
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2
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Shi Q, Wan Z, Lu S, Fang C, Yan C, Zhang X. Investigating the effects of PFOA accumulation and depuration on specific phospholipids in zebrafish through imaging mass spectrometry. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024; 26:700-709. [PMID: 38376352 DOI: 10.1039/d3em00413a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Perfluorooctanoic acid (PFOA) is an emerging persistent organic pollutant. Exposure to PFOA was observed to have a correlation with the expression levels of phospholipids. However, there are currently no studies that directly visualize the effects of PFOA on phospholipids. To this end, matrix-assisted laser desorption/ionization time of flight imaging mass spectrometry (MALDI-TOF-IMS) was used to visualize changes in phospholipids in the different tissues of zebrafish following exposure to PFOA. This study found that the major perturbed phospholipids were phosphatidylcholine (PC), diacylglycerol (DG), phosphatidic acid (PA), phosphatidylglycerol (PG), sphingomyelin (SM), and triacylglycerol (TG). These perturbed phospholipids caused by PFOA were reversible in some tissues (liver, gill, and brain) and irreversible in others (such as the highly exposed intestine). Moreover, the spatial distribution of perturbed phospholipids was mainly located around the edge or center of the tissues, implying that these tissue regions need special attention. This study provides novel insight into the biological toxicity and toxicity mechanisms induced by emerging environmental pollutants.
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Affiliation(s)
- Qiuyue Shi
- State Key Laboratory of Environmental Criteria and Risk Assessment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, National Environmental Protection Dongting Lake Scientific Observation and Research Station, State Environmental Protection Key Laboratory for Lake Pollution Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Zhengfen Wan
- State Key Laboratory of Environmental Criteria and Risk Assessment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, National Environmental Protection Dongting Lake Scientific Observation and Research Station, State Environmental Protection Key Laboratory for Lake Pollution Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Shaoyong Lu
- State Key Laboratory of Environmental Criteria and Risk Assessment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, National Environmental Protection Dongting Lake Scientific Observation and Research Station, State Environmental Protection Key Laboratory for Lake Pollution Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Cheng Fang
- Global Centre for Environmental Remediation, University of Newcastle, Callaghan, NSW 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Changzhou Yan
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Xian Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
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3
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White CJ, Gausepohl AM, Wilkins HN, Eberhard CD, Orsburn BC, Williams DW. Spatial Heterogeneity of Brain Lipids in SIV-Infected Macaques Treated with Antiretroviral Therapy. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024; 35:185-196. [PMID: 38288997 DOI: 10.1021/jasms.3c00276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Human immunodeficiency virus (HIV) infection continues to promote neurocognitive impairment, mood disorders, and brain atrophy, even in the modern era of viral suppression. Brain lipids are vulnerable to HIV-associated energetic strain and may contribute to HIV-associated neurologic dysfunction due to alterations in lipid breakdown and structural lipid composition. HIV neuropathology is region dependent, yet there has not been comprehensive characterization of the spatial heterogeneity of brain lipids during infection that possibly impacts neurologic function. To address this gap, we evaluated the spatial lipid distribution using matrix laser desorption/ionization imaging mass spectrometry (MALDI-IMS) across four brain regions (parietal cortex, midbrain, thalamus, and temporal cortex), as well as the kidney for a peripheral tissue control, in a simian immunodeficiency virus (SIV)-infected rhesus macaque treated with a course of antiretroviral therapies (ARTs). We assessed lipids indicative of fat breakdown [acylcarnitines (CARs)] and critical structural lipids [phosphatidylcholines (PCs) and phosphatidylethanolamines (PEs)] across fatty acid chain lengths and degrees of unsaturation. CARs with very long-chain, polyunsaturated fatty acids (PUFAs) were more abundant across all brain regions than shorter chain, saturated, or monounsaturated species. We observed distinct brain lipid distribution patterns for the CARs and PCs. However, no clear expression patterns emerged for PEs. Surprisingly, the kidney was nearly devoid of ions corresponding to PUFAs common in brain. PEs and PCs with PUFAs had little intensity and less density than other species, and only one CAR species was observed in kidney at high intensity. Overall, our study demonstrates the stark variation in structural phospholipids and lipid-energetic intermediates present in the virally suppressed SIV-macaque brain. These findings may be useful for identifying regional vulnerabilities to damage due to brain lipid changes in people with HIV.
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Affiliation(s)
- Cory J White
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Andrew M Gausepohl
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Hannah N Wilkins
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Colten D Eberhard
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Benjamin C Orsburn
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Dionna W Williams
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Medicine, Division of Clinical Pharmacology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Molecular Microbiology & Immunology, Johns Hopkins University School of Public Health, Baltimore, Maryland 21205, United States
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, Georgia 30322, United States
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4
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Siani-Rose M, McKee R, Cox S, Goldstein B, Abrams D, Taylor M, Kurek I. The Potential of Salivary Lipid-Based Cannabis-Responsive Biomarkers to Evaluate Medical Cannabis Treatment in Children with Autism Spectrum Disorder. Cannabis Cannabinoid Res 2023; 8:642-656. [PMID: 35343818 DOI: 10.1089/can.2021.0224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: Autism spectrum disorder (ASD) is a group of heterogeneous neurodevelopmental conditions affecting social communication and social interaction. Medical cannabis (MC) treatment shows promising results as an approach to reduce behavioral difficulties, as determined mainly by subjective observations. We have recently shown the potential of cannabis-responsive biomarkers detected in saliva of children with ASD to objectively quantify the impact of successful MC treatment using a metabolomics approach. Since the pathology of ASD is associated with abnormal lipid metabolism, we used lipidomics on the same samples to (1) expand the repertoire of cannabis-responsive biomarkers and (2) provide preliminary insight into the role of MC on lipid metabolism. Materials and Methods: Saliva samples collected from children with ASD (n=15) treated with MC (both before and at the time of maximal impact of treatment) and an age-matched group of typically developing (TD) children (n=9) were subjected to untargeted lipidomics. The study was observational. Each child from the ASD group was receiving a unique individualized MC treatment regimen using off-the-shelf products as permitted by California law under physician supervision for at least 1 year. Doses of tetrahydrocannabinol (THC) ranged from 0.05 to 50 mg and cannabidiol (CBD) from 7.5 to 200 mg per treatment. The ASD group was evaluated for signs of improvement using parental brief Likert scale surveys. Results: Twenty-two potential lipid-based cannabis-responsive biomarkers exhibiting a shift toward the TD physiological levels in children with ASD after MC treatment were identified. Members from all five lipid subclasses known to be present in saliva were characterized. Preliminary lipid association network analysis suggests involvement of two subnetworks previously linked to (1) inflammation and/or redox regulation and (2) oxidative stress. The significant changes in sphingomyelin in this study and in N-acetyl-aspartate (NAA) previously detected in the metabolomics analysis of the same saliva samples may indicate a role of MC in neuron function. Conclusions: Our findings suggest that lipid metabolites in saliva can potentially serve as cannabis-responsive biomarkers and objectively quantify the impact of MC treatment, and indicate a possible mechanism of action for MC. This preliminary study requires further investigation with a larger population and appropriate clinical trial monitoring.
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Affiliation(s)
| | - Robert McKee
- Cannformatics, Inc., San Francisco, California, USA
| | - Stephany Cox
- Cannformatics, Inc., San Francisco, California, USA
| | | | | | | | - Itzhak Kurek
- Cannformatics, Inc., San Francisco, California, USA
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Cappuccio G, Khalil SM, Osenberg S, Li F, Maletic-Savatic M. Mass spectrometry imaging as an emerging tool for studying metabolism in human brain organoids. Front Mol Biosci 2023; 10:1181965. [PMID: 37304070 PMCID: PMC10251497 DOI: 10.3389/fmolb.2023.1181965] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/02/2023] [Indexed: 06/13/2023] Open
Abstract
Human brain organoids are emerging models to study human brain development and pathology as they recapitulate the development and characteristics of major neural cell types, and enable manipulation through an in vitro system. Over the past decade, with the advent of spatial technologies, mass spectrometry imaging (MSI) has become a prominent tool for metabolic microscopy, providing label-free, non-targeted molecular and spatial distribution information of the metabolites within tissue, including lipids. This technology has never been used for studies of brain organoids and here, we set out to develop a standardized protocol for preparation and mass spectrometry imaging of human brain organoids. We present an optimized and validated sample preparation protocol, including sample fixation, optimal embedding solution, homogenous deposition of matrices, data acquisition and processing to maximize the molecular information derived from mass spectrometry imaging. We focus on lipids in organoids, as they play critical roles during cellular and brain development. Using high spatial and mass resolution in positive- and negative-ion modes, we detected 260 lipids in the organoids. Seven of them were uniquely localized within the neurogenic niches or rosettes as confirmed by histology, suggesting their importance for neuroprogenitor proliferation. We observed a particularly striking distribution of ceramide-phosphoethanolamine CerPE 36:1; O2 which was restricted within rosettes and of phosphatidyl-ethanolamine PE 38:3, which was distributed throughout the organoid tissue but not in rosettes. This suggests that ceramide in this particular lipid species might be important for neuroprogenitor biology, while its removal may be important for terminal differentiation of their progeny. Overall, our study establishes the first optimized experimental pipeline and data processing strategy for mass spectrometry imaging of human brain organoids, allowing direct comparison of lipid signal intensities and distributions in these tissues. Further, our data shed new light on the complex processes that govern brain development by identifying specific lipid signatures that may play a role in cell fate trajectories. Mass spectrometry imaging thus has great potential in advancing our understanding of early brain development as well as disease modeling and drug discovery.
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Affiliation(s)
- Gerarda Cappuccio
- Department of Pediatrics–Neurology, Baylor College of Medicine, Houston, TX, United States
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX, United States
| | - Saleh M. Khalil
- Department of Pediatrics–Neurology, Baylor College of Medicine, Houston, TX, United States
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX, United States
| | - Sivan Osenberg
- Department of Pediatrics–Neurology, Baylor College of Medicine, Houston, TX, United States
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX, United States
| | - Feng Li
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States
- Center for Drug Discovery, Baylor College of Medicine, Houston, TX, United States
| | - Mirjana Maletic-Savatic
- Department of Pediatrics–Neurology, Baylor College of Medicine, Houston, TX, United States
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX, United States
- Center for Drug Discovery, Baylor College of Medicine, Houston, TX, United States
- Department of Neuroscience, Baylor College of Medicine, Houston, TX, United States
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6
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Kumar D, Benyard B, Soni ND, Swain A, Wilson N, Reddy R. Feasibility of transient nuclear Overhauser effect imaging in brain at 7 T. Magn Reson Med 2023; 89:1357-1367. [PMID: 36372994 DOI: 10.1002/mrm.29519] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/11/2022] [Accepted: 10/19/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE The nuclear Overhauser effect (NOE) quantification from the steady-state NOE imaging suffers from multiple confounding non-NOE-specific sources, including direct saturation, magnetization transfer, and relevant chemical exchange species, and is affected by B0 and B1 + inhomogeneities. The B0 -dependent and B1 + -dependent data needed for deconvolving these confounding effects would increase the scan time substantially, leading to other issues such as patient tolerability. Here, we demonstrate the feasibility of brain lipid mapping using an easily implementable transient NOE (tNOE) approach. METHODS This 7T study used a frequency-selective inversion pulse at a range of frequency offsets between 1.0 and 5.0 parts per million (ppm) and -5.0 and -1.0 ppm relative to bulk water peak. This was followed by a fixed/variable mixing time and then a single-shot 2D turbo FLASH readout. The feasibility of tNOE measurements is demonstrated on bovine serum albumin phantoms and healthy human brains. RESULTS The tNOE measurements from bovine serum albumin phantoms were found to be independent of physiological pH variations. Both bovine serum albumin phantoms and human brains showed broad tNOE contributions centered at approximately -3.5 ppm relative to water peak, with presumably aliphatic moieties in lipids and proteins being the dominant contributors. Less prominent tNOE contributions of approximately +2.5 ppm relative to water, presumably from aromatic moieties, were also detected. These aromatic signals were free from any CEST signals. CONCLUSION In this study, we have demonstrated the feasibility of tNOE in human brain at 7 T. This method is more scan-time efficient than steady-state NOE and provides NOE measurement with minimal confounders.
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Affiliation(s)
- Dushyant Kumar
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Blake Benyard
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Narayan Datt Soni
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Anshuman Swain
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Neil Wilson
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ravinder Reddy
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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7
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Su X, Yang S, Li Y, Xiang Z, Tao Q, Liu S, Yin Z, Zhong L, Lv X, Zhou L. γδ T cells recruitment and local proliferation in brain parenchyma benefit anti-neuroinflammation after cerebral microbleeds. Front Immunol 2023; 14:1139601. [PMID: 37063908 PMCID: PMC10090560 DOI: 10.3389/fimmu.2023.1139601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
BackgroundCerebral microbleeds (CMBs) are an early sign of many neurological disorders and accompanied by local neuroinflammation and brain damage. As important regulators of immune response and neuroinflammation, the biological behavior and role of γδ T cells after CMBs remain largely unknown.MethodsWe made a spot injury of microvessel in the somatosensory cortex to mimic the model of CMBs by two-photon laser and in vivo tracked dynamical behaviors of γδ T cells induced by CMBs using TCR-δGFP transgenic mice. Biological features of γδ T cells in the peri-CMBs parenchyma were decoded by flow cytometry and Raman spectra. In wildtype and γδ T cell-deficient mice, neuroinflammation and neurite degeneration in the peri-CMBs cortex were studied by RNAseq, immunostaining and in vivo imaging respectively.ResultsAfter CMBs, γδ T cells in the dural vessels were tracked to cross the meningeal structure and invade the brain parenchyma in a few days, where the division process of γδ T cells were captured. Parenchymal γδ T cells were highly expressed by CXCR6 and CCR6, similar to meningeal γδ T cells, positive for IL-17A and Ki67 (more than 98%), and they contained abundant substances for energy metabolism and nucleic acid synthesis. In γδ T cell-deficient mice, cortical samples showed the upregulation of neuroinflammatory signaling pathways, enhanced glial response and M1 microglial polarization, and earlier neuronal degeneration in the peri-CMBs brain parenchyma compared with wildtype mice.ConclusionCMBs induce the accumulation and local proliferation of γδ T cells in the brain parenchyma, and γδ T cells exert anti-neuroinflammatory and neuroprotective effects at the early stage of CMBs.
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Affiliation(s)
- Xin Su
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, Guangdong, China
- Guangdong-Hongkong-Macau Central Nervous System Regeneration (CNS) Institute of Jinan University, Key Laboratory of Central Nervous System Regeneration (CNS) (Jinan University)-Ministry of Education, Guangzhou, Guangdong, China
| | - Shuxian Yang
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
- CAS Key Laboratory of Brain Connectome and Manipulation, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
- The Biomedical Translational Research Institute, Jinan University, Guangzhou, Guangdong, China
| | - Yanxiang Li
- The Biomedical Translational Research Institute, Jinan University, Guangzhou, Guangdong, China
| | - Zongqin Xiang
- Laboratory for Neuroscience in Health and Disease, Guangzhou First People’s Hospital School of Medicine, South China University of Technology, Guangzhou, China
| | - Qiao Tao
- Guangdong Provincial Key Laboratory of Photonics Information Technology, Guangdong University of Technology, Guangzhou, Guangdong, China
| | - Shengde Liu
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, Guangdong, China
| | - Zhinan Yin
- The Biomedical Translational Research Institute, Jinan University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People’s Hospital Affiliated with Jinan University, Jinan University, Zhuhai, Guangdong, China
- *Correspondence: Libing Zhou, ; Xiaoxu Lv, ; Liyun Zhong, ; Zhinan Yin,
| | - Liyun Zhong
- Guangdong Provincial Key Laboratory of Photonics Information Technology, Guangdong University of Technology, Guangzhou, Guangdong, China
- *Correspondence: Libing Zhou, ; Xiaoxu Lv, ; Liyun Zhong, ; Zhinan Yin,
| | - Xiaoxu Lv
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, Guangdong, China
- *Correspondence: Libing Zhou, ; Xiaoxu Lv, ; Liyun Zhong, ; Zhinan Yin,
| | - Libing Zhou
- Guangdong-Hongkong-Macau Central Nervous System Regeneration (CNS) Institute of Jinan University, Key Laboratory of Central Nervous System Regeneration (CNS) (Jinan University)-Ministry of Education, Guangzhou, Guangdong, China
- Department of Neurology and Stroke Center, The First Affiliated Hospital & Clinical Neuroscience Institute of Jinan University, Guangzhou, Guangdong, China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
- Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
- Center for Exercise and Brain Science, School of Psychology, Shanghai University of Sport, Shanghai, China
- *Correspondence: Libing Zhou, ; Xiaoxu Lv, ; Liyun Zhong, ; Zhinan Yin,
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Maimó-Barceló A, Martín-Saiz L, Fernández JA, Pérez-Romero K, Garfias-Arjona S, Lara-Almúnia M, Piérola-Lopetegui J, Bestard-Escalas J, Barceló-Coblijn G. Polyunsaturated Fatty Acid-Enriched Lipid Fingerprint of Glioblastoma Proliferative Regions Is Differentially Regulated According to Glioblastoma Molecular Subtype. Int J Mol Sci 2022; 23:ijms23062949. [PMID: 35328369 PMCID: PMC8949316 DOI: 10.3390/ijms23062949] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 12/15/2022] Open
Abstract
Glioblastoma (GBM) represents one of the deadliest tumors owing to a lack of effective treatments. The adverse outcomes are worsened by high rates of treatment discontinuation, caused by the severe side effects of temozolomide (TMZ), the reference treatment. Therefore, understanding TMZ’s effects on GBM and healthy brain tissue could reveal new approaches to address chemotherapy side effects. In this context, we have previously demonstrated the membrane lipidome is highly cell type-specific and very sensitive to pathophysiological states. However, little remains known as to how membrane lipids participate in GBM onset and progression. Hence, we employed an ex vivo model to assess the impact of TMZ treatment on healthy and GBM lipidome, which was established through imaging mass spectrometry techniques. This approach revealed that bioactive lipid metabolic hubs (phosphatidylinositol and phosphatidylethanolamine plasmalogen species) were altered in healthy brain tissue treated with TMZ. To better understand these changes, we interrogated RNA expression and DNA methylation datasets of the Cancer Genome Atlas database. The results enabled GBM subtypes and patient survival to be linked with the expression of enzymes accounting for the observed lipidome, thus proving that exploring the lipid changes could reveal promising therapeutic approaches for GBM, and ways to ameliorate TMZ side effects.
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Affiliation(s)
- Albert Maimó-Barceló
- Institut d’Investigacio Sanitaria Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), 07120 Palma, Spain; (A.M.-B.); (K.P.-R.); (J.P.-L.)
- Research Unit, University Hospital Son Espases, 07120 Palma, Spain
| | - Lucía Martín-Saiz
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (L.M.-S.); (J.A.F.)
| | - José A. Fernández
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (L.M.-S.); (J.A.F.)
| | - Karim Pérez-Romero
- Institut d’Investigacio Sanitaria Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), 07120 Palma, Spain; (A.M.-B.); (K.P.-R.); (J.P.-L.)
- Research Unit, University Hospital Son Espases, 07120 Palma, Spain
| | - Santiago Garfias-Arjona
- Quirónsalud Medical Center, 07300 Inca, Spain;
- Son Verí Quirónsalud Hospital, Balearic Islands, 07609 Son Veri Nou, Spain
- Hospital de Llevant, 07680 Porto Cristo, Spain
| | - Mónica Lara-Almúnia
- Department of Neurosurgery, Jimenez Diaz Foundation University Hospital, Reyes Catolicos Av., No 2, 28040 Madrid, Spain;
- Ruber International Hospital, Maso St., No 38, 28034 Madrid, Spain
| | - Javier Piérola-Lopetegui
- Institut d’Investigacio Sanitaria Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), 07120 Palma, Spain; (A.M.-B.); (K.P.-R.); (J.P.-L.)
- Research Unit, University Hospital Son Espases, 07120 Palma, Spain
| | - Joan Bestard-Escalas
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Bruxelles, Belgium
- Correspondence: (J.B.-E.); (G.B.-C.)
| | - Gwendolyn Barceló-Coblijn
- Institut d’Investigacio Sanitaria Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), 07120 Palma, Spain; (A.M.-B.); (K.P.-R.); (J.P.-L.)
- Research Unit, University Hospital Son Espases, 07120 Palma, Spain
- Correspondence: (J.B.-E.); (G.B.-C.)
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Citicoline and COVID-19-Related Cognitive and Other Neurologic Complications. Brain Sci 2021; 12:brainsci12010059. [PMID: 35053804 PMCID: PMC8782421 DOI: 10.3390/brainsci12010059] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/29/2021] [Accepted: 12/30/2021] [Indexed: 02/07/2023] Open
Abstract
With growing concerns about COVID-19’s hyperinflammatory condition and its potentially damaging impact on the neurovascular system, there is a need to consider potential treatment options for managing short- and long-term effects on neurological complications, especially cognitive function. While maintaining adequate structure and function of phospholipid in brain cells, citicoline, identical to the natural metabolite phospholipid phosphatidylcholine precursor, can contribute to a variety of neurological diseases and hypothetically toward post-COVID-19 cognitive effects. In this review, we comprehensively describe in detail the potential citicoline mechanisms as adjunctive therapy and prevention of COVID-19-related cognitive decline and other neurologic complications through citicoline properties of anti-inflammation, anti-viral, neuroprotection, neurorestorative, and acetylcholine neurotransmitter synthesis, and provide a recommendation for future clinical trials.
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Pekov SI, Bormotov DS, Nikitin PV, Sorokin AA, Shurkhay VA, Eliferov VA, Zavorotnyuk DS, Potapov AA, Nikolaev EN, Popov IA. Rapid estimation of tumor cell percentage in brain tissue biopsy samples using inline cartridge extraction mass spectrometry. Anal Bioanal Chem 2021; 413:2913-2922. [PMID: 33751161 DOI: 10.1007/s00216-021-03220-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/28/2021] [Accepted: 02/03/2021] [Indexed: 10/21/2022]
Abstract
Tumor cell percentage (TCP) is an essential characteristic of biopsy samples that directly affects the sensitivity of molecular testing in clinical practice. Apart from clarifying diagnoses, rapid evaluation of TCP combined with various neuronavigation systems can be used to support decision making in neurosurgery. It is known that ambient mass spectrometry makes it possible to rapidly distinguish healthy from malignant tissues. In connection with this, here we demonstrate the possibility of using non-imaging ambient mass spectrometry to evaluate TCP in glial tumor tissues with a high degree of confidence. Molecular profiles of histologically annotated human glioblastoma tissue samples were obtained using the inline cartridge extraction ambient mass spectrometry approach. XGBoost regressors were trained to evaluate tumor cell percentage. Using cross-validation, it was estimated that the TCP was determined by the regressors with a precision of approximately 90% using only low-resolution data. This result demonstrates that ambient mass spectrometry provides an accurate method todetermine TCP in dissected tissues even without implementing mass spectrometry imaging. The application of such techniques offers the possibility to automate routine tissue screening and TCP evaluation to boost the throughput of pathology laboratories. Rapid estimation of tumor cell percentage during neurosurgery.
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Affiliation(s)
- Stanislav I Pekov
- Skolkovo Institute of Science and Technology, Skolkovo, Moscow region, 143026, Russian Federation.,Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russian Federation
| | - Denis S Bormotov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russian Federation
| | - Pavel V Nikitin
- N.N. Burdenko National Scientific and Practical Center for Neurosurgery, Moscow, 125047, Russian Federation
| | - Anatoly A Sorokin
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russian Federation
| | - Vsevolod A Shurkhay
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russian Federation.,N.N. Burdenko National Scientific and Practical Center for Neurosurgery, Moscow, 125047, Russian Federation
| | - Vasiliy A Eliferov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russian Federation
| | - Denis S Zavorotnyuk
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russian Federation
| | - Alexander A Potapov
- N.N. Burdenko National Scientific and Practical Center for Neurosurgery, Moscow, 125047, Russian Federation
| | - Eugene N Nikolaev
- Skolkovo Institute of Science and Technology, Skolkovo, Moscow region, 143026, Russian Federation
| | - Igor A Popov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russian Federation.
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11
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Removal of optimal cutting temperature (O.C.T.) compound from embedded tissue for MALDI imaging of lipids. Anal Bioanal Chem 2021; 413:2695-2708. [PMID: 33564925 DOI: 10.1007/s00216-020-03128-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/27/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022]
Abstract
Matrix-assisted laser desorption/ionisation mass spectrometry imaging (MALDI-MSI) is a common molecular imaging modality used to characterise the abundance and spatial distribution of lipids in situ. There are several technical challenges predominantly involving sample pre-treatment and preparation which have complicated the analysis of clinical tissues by MALDI-MSI. Firstly, the common embedding of samples in optimal cutting temperature (O.C.T.), which contains high concentrations of polyethylene glycol (PEG) polymers, causes analyte signal suppression during mass spectrometry (MS) by competing for available ions during ionisation. This suppressive effect has constrained the application of MALDI-MSI for the molecular mapping of clinical tissues. Secondly, the complexity of the mass spectra is obtained by the formation of multiple adduct ions. The process of analyte ion formation during MALDI can generate multiple m/z peaks from a single lipid species due to the presence of alkali salts in tissues, resulting in the suppression of protonated adduct formation and the generation of multiple near isobaric ions which produce overlapping spatial distributions. Presented is a method to simultaneously remove O.C.T. and endogenous salts. This approach was applied to lipid imaging in order to prevent analyte suppression, simplify data interpretation, and improve sensitivity by promoting lipid protonation and reducing the formation of alkali adducts.
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12
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Cosín-Tomás M, Luan Y, Leclerc D, Malysheva OV, Lauzon N, Bahous RH, Christensen KE, Caudill MA, Rozen R. Moderate Folic Acid Supplementation in Pregnant Mice Results in Behavioral Alterations in Offspring with Sex-Specific Changes in Methyl Metabolism. Nutrients 2020; 12:nu12061716. [PMID: 32521649 PMCID: PMC7352339 DOI: 10.3390/nu12061716] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/27/2020] [Accepted: 06/04/2020] [Indexed: 12/24/2022] Open
Abstract
Fifteen to 20% of pregnant women may exceed the recommended intake of folic acid (FA) by more than four-fold. This excess could compromise neurocognitive and motor development in offspring. Here, we explored the impact of an FA-supplemented diet (5× FASD, containing five-fold higher FA than recommended) during pregnancy on brain function in murine offspring, and elucidated mechanistic changes. We placed female C57BL/6 mice for one month on control diets or 5× FASD before mating. Diets were maintained throughout pregnancy and lactation. Behavioural tests were conducted on 3-week-old pups. Pups and mothers were sacrificed at weaning. Brains and livers were collected to examine choline/methyl metabolites and immunoreactive methylenetetrahydrofolate reductase (MTHFR). 5× FASD led to hyperactivity-like behavior and memory impairment in 3-week-old pups of both sexes. Reduced MTHFR protein in the livers of FASD mothers and male pups resulted in choline/methyl metabolite disruptions in offspring liver (decreased betaine) and brain (decreased glycerophosphocholine and sphingomyelin in male pups, and decreased phosphatidylcholine in both sexes). These results indicate that moderate folate supplementation downregulates MTHFR and alters choline/methyl metabolism, contributing to neurobehavioral alterations. Our findings support the negative impact of high FA on brain development, and may lead to improved guidelines on optimal folate levels during pregnancy.
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Affiliation(s)
- Marta Cosín-Tomás
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, McGill University, Montreal, QC H4A 3J1, Canada; (M.C.-T.); (Y.L.); (D.L.); (R.H.B.); (K.E.C.)
| | - Yan Luan
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, McGill University, Montreal, QC H4A 3J1, Canada; (M.C.-T.); (Y.L.); (D.L.); (R.H.B.); (K.E.C.)
| | - Daniel Leclerc
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, McGill University, Montreal, QC H4A 3J1, Canada; (M.C.-T.); (Y.L.); (D.L.); (R.H.B.); (K.E.C.)
| | - Olga V. Malysheva
- Division of Nutritional Sciences and Genomics, Cornell University, Ithaca, NY 14853, USA; (O.V.M.); (M.A.C.)
| | - Nidia Lauzon
- Drug Discovery Platform, Research Institute of the McGill University Health Centre, Montreal, QC H4A 3J1, Canada;
| | - Renata H. Bahous
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, McGill University, Montreal, QC H4A 3J1, Canada; (M.C.-T.); (Y.L.); (D.L.); (R.H.B.); (K.E.C.)
| | - Karen E. Christensen
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, McGill University, Montreal, QC H4A 3J1, Canada; (M.C.-T.); (Y.L.); (D.L.); (R.H.B.); (K.E.C.)
| | - Marie A. Caudill
- Division of Nutritional Sciences and Genomics, Cornell University, Ithaca, NY 14853, USA; (O.V.M.); (M.A.C.)
| | - Rima Rozen
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, McGill University, Montreal, QC H4A 3J1, Canada; (M.C.-T.); (Y.L.); (D.L.); (R.H.B.); (K.E.C.)
- Correspondence: ; Tel.: +15-14934-1934 (ext. 23839)
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13
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Harris A, Roseborough A, Mor R, Yeung KKC, Whitehead SN. Ganglioside Detection from Formalin-Fixed Human Brain Tissue Utilizing MALDI Imaging Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:479-487. [PMID: 31971797 DOI: 10.1021/jasms.9b00110] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Matrix assisted laser desorption ionization (MALDI) imaging mass spectrometry (IMS) is used to perform mass spectrometric analysis directly on biological samples providing visual and anatomical spatial information on molecules within tissues. A current obscuration of MALDI-IMS is that it is largely performed on fresh frozen tissue, whereas clinical tissue samples stored long-term are fixed in formalin, and the fixation process is thought to cause signal suppression for lipid molecules. Studies have shown that fresh frozen tissue sections applied with an ammonium formate (AF) wash prior to matrix application in the MALDI-IMS procedure display an increase in observed signal intensity and sensitivity for lipid molecules detected within the brain while maintaining the spatial distribution of molecules throughout the tissue. In this work, we investigate the viability of formalin-fixed tissue imaging in a clinical setting by comparing MALDI data of fresh frozen and postfixed rat brain samples, along with postfixed human brain samples washed with AF to assess the capabilities of ganglioside analysis in MALDI imaging of formalin-fixed tissue. Results herein demonstrate that MALDI-IMS spectra for gangliosides, including GM1, were significantly enhanced in fresh frozen rat brain, formalin-fixed rat brain, and formalin-fixed human brain samples through the use of an AF wash. Improvements in MALDI-IMS image quality were demonstrated, and the spatial distribution of molecules was retained. Results indicate that this method will allow for the analysis of gangliosides from formalin-fixed clinical samples, which can open additional avenues for neurodegenerative disease research.
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Affiliation(s)
- Aaron Harris
- Department of Chemistry, University of Western Ontario, London, ON, Canada N6A 5B7
- Vulnerable Brain Laboratory, Department of Anatomy and Cell Biology, University of Western Ontario, London, ON, Canada N6A 5C1
| | - A Roseborough
- Vulnerable Brain Laboratory, Department of Anatomy and Cell Biology, University of Western Ontario, London, ON, Canada N6A 5C1
| | - Rahul Mor
- Vulnerable Brain Laboratory, Department of Anatomy and Cell Biology, University of Western Ontario, London, ON, Canada N6A 5C1
| | - Ken K-C Yeung
- Department of Chemistry, University of Western Ontario, London, ON, Canada N6A 5B7
- Department of Biochemistry, University of Western Ontario, London, ON, Canada N6A 5C1
| | - Shawn N Whitehead
- Vulnerable Brain Laboratory, Department of Anatomy and Cell Biology, University of Western Ontario, London, ON, Canada N6A 5C1
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14
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Fernández R, Garate J, Tolentino-Cortez T, Herraiz A, Lombardero L, Ducrocq F, Rodríguez-Puertas R, Trifilieff P, Astigarraga E, Barreda-Gómez G, Fernández JA. Microarray and Mass Spectrometry-Based Methodology for Lipid Profiling of Tissues and Cell Cultures. Anal Chem 2019; 91:15967-15973. [PMID: 31751120 DOI: 10.1021/acs.analchem.9b04529] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The recent developments in mass spectrometry have revealed the importance of lipids as biomarkers in the context of different diseases and as indicators of the cell's homeostasis. However, further advances are required to unveil the complex relationships between lipid classes and lipid species with proteins. Here, we present a new methodology that combines microarrays with mass spectrometry to obtain the lipid fingerprint of samples of a different nature in a standardized and fast way, with minimal sample consumption. As a proof of concept, we use the methodology to obtain the lipid fingerprint of 20 rat tissues and to create a lipid library for tissue classification. Then, we combine those results with immunohistochemistry and enzymatic assays to unveil the relationship between some lipid species and two enzymes. Finally, we demonstrate the performance of the methodology to explore changes in lipid composition of the nucleus accumbens from mice subjected to two lipid diets.
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Affiliation(s)
- Roberto Fernández
- Research Department , IMG Pharma Biotech S.L., BIC Bizkaia (612), 48160 - Derio , Spain
| | | | | | - Ainara Herraiz
- Research Department , IMG Pharma Biotech S.L., BIC Bizkaia (612), 48160 - Derio , Spain
| | | | - Fabien Ducrocq
- University of Bordeaux, INRA, Bordeaux INP, NutriNeuro, UMR 1286 , F-33000 , Bordeaux , France
| | - Rafael Rodríguez-Puertas
- Neurodegenerative Diseases , Biocruces Bizkaia Health Research Institute , 48903 Barakaldo , Spain
| | - Pierre Trifilieff
- University of Bordeaux, INRA, Bordeaux INP, NutriNeuro, UMR 1286 , F-33000 , Bordeaux , France
| | - Egoitz Astigarraga
- Research Department , IMG Pharma Biotech S.L., BIC Bizkaia (612), 48160 - Derio , Spain
| | - Gabriel Barreda-Gómez
- Research Department , IMG Pharma Biotech S.L., BIC Bizkaia (612), 48160 - Derio , Spain
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15
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Tian X, Xie B, Zou Z, Jiao Y, Lin LE, Chen CL, Hsu CC, Peng J, Yang Z. Multimodal Imaging of Amyloid Plaques: Fusion of the Single-Probe Mass Spectrometry Image and Fluorescence Microscopy Image. Anal Chem 2019; 91:12882-12889. [PMID: 31536324 PMCID: PMC6885010 DOI: 10.1021/acs.analchem.9b02792] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases. The formation of amyloid plaques by aggregated amyloid beta (Aβ) peptides is a primary event in AD pathology. Understanding the metabolomic features and related pathways is critical for studying plaque-related pathological events (e.g., cell death and neuron dysfunction). Mass spectrometry imaging (MSI), due to its high sensitivity and ability to obtain the spatial distribution of metabolites, has been applied to AD studies. However, limited studies of metabolites in amyloid plaques have been performed due to the drawbacks of the commonly used techniques such as matrix-assisted laser desorption/ionization MSI. In the current study, we obtained high spatial resolution (∼17 μm) MS images of the AD mouse brain using the Single-probe, a microscale sampling and ionization device, coupled to a mass spectrometer under ambient conditions. The adjacent slices were used to obtain fluorescence microscopy images to locate amyloid plaques. The MS image and the fluorescence microscopy image were fused to spatially correlate histological protein hallmarks with metabolomic features. The fused images produced significantly improved spatial resolution (∼5 μm), allowing for the determination of fine structures in MS images and metabolomic biomarkers representing amyloid plaques.
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Affiliation(s)
- Xiang Tian
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Boer Xie
- Departments of Structural Biology and Developmental Neurobiology, Center for Proteomics and Metabolomics, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee 38105, United States
| | - Zhu Zou
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Yun Jiao
- Departments of Structural Biology and Developmental Neurobiology, Center for Proteomics and Metabolomics, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee 38105, United States
| | - Li-En Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chih-Lin Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Junmin Peng
- Departments of Structural Biology and Developmental Neurobiology, Center for Proteomics and Metabolomics, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee 38105, United States
| | - Zhibo Yang
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United States
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16
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Bestard-Escalas J, Maimó-Barceló A, Pérez-Romero K, Lopez DH, Barceló-Coblijn G. Ins and Outs of Interpreting Lipidomic Results. J Mol Biol 2019; 431:5039-5062. [PMID: 31422112 DOI: 10.1016/j.jmb.2019.08.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 12/20/2022]
Abstract
Membrane lipids are essential for life; however, research on how cells regulate cell lipid composition has been falling behind for quite some time. One reason was the difficulty in establishing analytical methods able to cope with the cell lipid repertoire. Development of a diversity of mass spectrometry-based technologies, including imaging mass spectrometry, has helped to demonstrate beyond doubt that the cell lipidome is not only greatly cell type dependent but also highly sensitive to any pathophysiological alteration such as differentiation or tumorigenesis. Interestingly, the current popularization of metabolomic studies among numerous disciplines has led many researchers to rediscover lipids. Hence, it is important to underscore the peculiarities of these metabolites and their metabolism, which are both radically different from protein and nucleic acid metabolism. Once differences in lipid composition have been established, researchers face a rather complex scenario, to investigate the signaling pathways and molecular mechanisms accounting for their results. Thus, a detail often overlooked, but of crucial relevance, is the complex networks of enzymes involved in controlling the level of each one of the lipid species present in the cell. In most cases, these enzymes are redundant and promiscuous, complicating any study on lipid metabolism, since the modification of one particular lipid enzyme impacts simultaneously on many species. Altogether, this review aims to describe the difficulties in delving into the regulatory mechanisms tailoring the lipidome at the activity, genetic, and epigenetic level, while conveying the numerous, stimulating, and sometimes unexpected research opportunities afforded by this type of studies.
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Affiliation(s)
- Joan Bestard-Escalas
- Lipids in Human Pathology, Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
| | - Albert Maimó-Barceló
- Lipids in Human Pathology, Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
| | - Karim Pérez-Romero
- Lipids in Human Pathology, Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
| | - Daniel H Lopez
- Lipids in Human Pathology, Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain
| | - Gwendolyn Barceló-Coblijn
- Lipids in Human Pathology, Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain.
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17
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Neumann EK, Ellis JF, Triplett AE, Rubakhin SS, Sweedler JV. Lipid Analysis of 30 000 Individual Rodent Cerebellar Cells Using High-Resolution Mass Spectrometry. Anal Chem 2019; 91:7871-7878. [PMID: 31122012 DOI: 10.1021/acs.analchem.9b01689] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Single-cell measurements aid our understanding of chemically heterogeneous systems such as the brain. Lipids are one of the least studied chemical classes, and their cell-to-cell heterogeneity remains largely unexplored. We adapted microscopy-guided single-cell profiling using matrix-assisted laser desorption/ionization ion cyclotron resonance mass spectrometry to profile the lipid composition of over 30 000 individual rat cerebellar cells. We detected 520 lipid features, many of which were found in subsets of cells; Louvain clustering identified 101 distinct groups that can be correlated to neuronal and astrocytic classifications and lipid classes. Overall, the two most common lipids found were [PC(32:0)+H]+ and [PC(34:1)+H]+, which were present within 98.9 and 89.5% of cells, respectively; lipid signals present in <1% of cells were also detected, including [PC(34:1)+K]+ and [PG(40:2(OH))+Na]+. These results illustrate the vast lipid heterogeneity found within rodent cerebellar cells and hint at the distinct functional consequences of this heterogeneity.
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18
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González de San Román E, Bidmon HJ, Malisic M, Susnea I, Küppers A, Hübbers R, Wree A, Nischwitz V, Amunts K, Huesgen PF. Molecular composition of the human primary visual cortex profiled by multimodal mass spectrometry imaging. Brain Struct Funct 2018; 223:2767-2783. [PMID: 29633039 PMCID: PMC5995978 DOI: 10.1007/s00429-018-1660-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 03/29/2018] [Indexed: 12/14/2022]
Abstract
The primary visual cortex (area V1) is an extensively studied part of the cerebral cortex with well-characterized connectivity, cellular and molecular architecture and functions (for recent reviews see Amunts and Zilles, Neuron 88:1086-1107, 2015; Casagrande and Xu, Parallel visual pathways: a comparative perspective. The visual neurosciences, MIT Press, Cambridge, pp 494-506, 2004). In humans, V1 is defined by heavily myelinated fibers arriving from the radiatio optica that form the Gennari stripe in cortical layer IV, which is further subdivided into laminae IVa, IVb, IVcα and IVcβ. Due to this unique laminar pattern, V1 represents an excellent region to test whether multimodal mass spectrometric imaging could reveal novel biomolecular markers for a functionally relevant parcellation of the human cerebral cortex. Here we analyzed histological sections of three post-mortem brains with matrix-assisted laser desorption/ionization mass spectrometry imaging and laser ablation inductively coupled plasma mass spectrometry imaging to investigate the distribution of lipids, proteins and metals in human V1. We identified 71 peptides of 13 different proteins by in situ tandem mass spectrometry, of which 5 proteins show a differential laminar distribution pattern revealing the border between V1 and V2. High-accuracy mass measurements identified 123 lipid species, including glycerolipids, glycerophospholipids and sphingolipids, of which at least 20 showed differential distribution within V1 and V2. Specific lipids labeled not only myelinated layer IVb, but also IVa and especially IVc in a layer-specific manner, but also and clearly separated V1 from V2. Elemental imaging further showed a specific accumulation of copper in layer IV. In conclusion, multimodal mass spectrometry imaging identified novel biomolecular and elemental markers with specific laminar and inter-areal differences. We conclude that mass spectrometry imaging provides a promising new approach toward multimodal, molecule-based cortical parcellation.
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Affiliation(s)
- Estibaliz González de San Román
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Hans-Jürgen Bidmon
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Milena Malisic
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Iuliana Susnea
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
| | - Astrid Küppers
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
| | - Rene Hübbers
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Institute of Neuroscience and Medicine, INM-1, Forschungszentrum Jülich, Jülich, Germany
| | - Andreas Wree
- Institute of Anatomy, Rostock University Medical Center, Rostock, Germany
| | - Volker Nischwitz
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
| | - Katrin Amunts
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
- Institute of Neuroscience and Medicine, INM-1, Forschungszentrum Jülich, Jülich, Germany.
| | - Pitter F Huesgen
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany.
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19
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Trépanier MO, Hildebrand KD, Nyamoya SD, Amor S, Bazinet RP, Kipp M. Phosphatidylcholine 36:1 concentration decreases along with demyelination in the cuprizone animal model and in post-mortem multiple sclerosis brain tissue. J Neurochem 2018; 145:504-515. [DOI: 10.1111/jnc.14335] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 03/27/2018] [Accepted: 01/30/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Marc-Olivier Trépanier
- Department of Nutritional Sciences; Faculty of Medicine; University of Toronto; Toronto Ontario Canada
| | - Kayla D. Hildebrand
- Department of Nutritional Sciences; Faculty of Medicine; University of Toronto; Toronto Ontario Canada
| | - Stella D. Nyamoya
- Department of Neuroanatomy; Ludwig-Maximilians-University of Munich; Munich Germany
| | - Sandra Amor
- Department of Pathology; VU University Medical Centre; Amsterdam The Netherlands
- Blizard Institute; Barts and The London School of Medicine and Dentistry; Queen Mary University of London; London UK
| | - Richard P. Bazinet
- Department of Nutritional Sciences; Faculty of Medicine; University of Toronto; Toronto Ontario Canada
| | - Markus Kipp
- Department of Neuroanatomy; Ludwig-Maximilians-University of Munich; Munich Germany
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20
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Kleinridders A, Ferris HA, Reyzer ML, Rath M, Soto M, Manier ML, Spraggins J, Yang Z, Stanton RC, Caprioli RM, Kahn CR. Regional differences in brain glucose metabolism determined by imaging mass spectrometry. Mol Metab 2018; 12:113-121. [PMID: 29681509 PMCID: PMC6001904 DOI: 10.1016/j.molmet.2018.03.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 03/15/2018] [Accepted: 03/24/2018] [Indexed: 12/29/2022] Open
Abstract
Objective Glucose is the major energy substrate of the brain and crucial for normal brain function. In diabetes, the brain is subject to episodes of hypo- and hyperglycemia resulting in acute outcomes ranging from confusion to seizures, while chronic metabolic dysregulation puts patients at increased risk for depression and Alzheimer's disease. In the present study, we aimed to determine how glucose is metabolized in different regions of the brain using imaging mass spectrometry (IMS). Methods To examine the relative abundance of glucose and other metabolites in the brain, mouse brain sections were subjected to imaging mass spectrometry at a resolution of 100 μm. This was correlated with immunohistochemistry, qPCR, western blotting and enzyme assays of dissected brain regions to determine the relative contributions of the glycolytic and pentose phosphate pathways to regional glucose metabolism. Results In brain, there are significant regional differences in glucose metabolism, with low levels of hexose bisphosphate (a glycolytic intermediate) and high levels of the pentose phosphate pathway (PPP) enzyme glucose-6-phosphate dehydrogenase (G6PD) and PPP metabolite hexose phosphate in thalamus compared to cortex. The ratio of ATP to ADP is significantly higher in white matter tracts, such as corpus callosum, compared to less myelinated areas. While the brain is able to maintain normal ratios of hexose phosphate, hexose bisphosphate, ATP, and ADP during fasting, fasting causes a large increase in cortical and hippocampal lactate. Conclusion These data demonstrate the importance of direct measurement of metabolic intermediates to determine regional differences in brain glucose metabolism and illustrate the strength of imaging mass spectrometry for investigating the impact of changing metabolic states on brain function at a regional level with high resolution. Utilization of glucose for glycolysis or the pentose phosphate pathway (PPP) is region-specific. IMS allows simultaneous measurement of glucose metabolites across brain regions. PPP is high in thalamus, while glycolysis predominates in cortex and amygdala. Fasting induces changes in lactate distribution but not glucose metabolites or ATP.
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Affiliation(s)
- André Kleinridders
- Department of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA; German Institute of Human Nutrition, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, Potsdam-Rehbruecke, Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany.
| | - Heather A Ferris
- Department of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA.
| | - Michelle L Reyzer
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37240, USA
| | - Michaela Rath
- German Institute of Human Nutrition, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, Potsdam-Rehbruecke, Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Marion Soto
- Department of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - M Lisa Manier
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37240, USA
| | - Jeffrey Spraggins
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37240, USA
| | - Zhihong Yang
- Department of Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Robert C Stanton
- Department of Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Richard M Caprioli
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37240, USA
| | - C Ronald Kahn
- Department of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA.
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21
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The role of sphingolipids in psychoactive drug use and addiction. J Neural Transm (Vienna) 2018; 125:651-672. [DOI: 10.1007/s00702-018-1840-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/03/2018] [Indexed: 12/14/2022]
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22
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Abstract
Proteomics and lipidomics are powerful tools to the large-scale study of proteins and lipids, respectively. Several methods can be employed with particular benefits and limitations in the study of human brain. This is a review of the rationale use of current techniques with particular attention to limitations and pitfalls inherent to each one of the techniques, and more importantly, to their use in the study of post-mortem brain tissue. These aspects are cardinal to avoid false interpretations, errors and unreal expectancies. Other points are also stressed as exemplified in the analysis of human neurodegenerative diseases which are manifested by disease-, region-, and stage-specific modifications commonly in the context of aging. Information about certain altered protein clusters and proteins oxidatively damaged is summarized for Alzheimer and Parkinson diseases.
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Affiliation(s)
- Isidro Ferrer
- Pathologic Anatomy Service, Institute of Neuropathology, Bellvitge University Hospital; Department of Pathology and Experimental Therapeutics, Faculty of Medicine, University of Barcelona; and Network Center of Biomedical Research on Neurodegenerative Diseases, Institute Carlos III; Hospitalet de Llobregat, Llobregat, Spain.
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23
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Schmitt A, Martins-de-Souza D, Akbarian S, Cassoli JS, Ehrenreich H, Fischer A, Fonteh A, Gattaz WF, Gawlik M, Gerlach M, Grünblatt E, Halene T, Hasan A, Hashimoto K, Kim YK, Kirchner SK, Kornhuber J, Kraus TFJ, Malchow B, Nascimento JM, Rossner M, Schwarz M, Steiner J, Talib L, Thibaut F, Riederer P, Falkai P. Consensus paper of the WFSBP Task Force on Biological Markers: Criteria for biomarkers and endophenotypes of schizophrenia, part III: Molecular mechanisms. World J Biol Psychiatry 2017; 18:330-356. [PMID: 27782767 DOI: 10.1080/15622975.2016.1224929] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Despite progress in identifying molecular pathophysiological processes in schizophrenia, valid biomarkers are lacking for both the disease and treatment response. METHODS This comprehensive review summarises recent efforts to identify molecular mechanisms on the level of protein and gene expression and epigenetics, including DNA methylation, histone modifications and micro RNA expression. Furthermore, it summarises recent findings of alterations in lipid mediators and highlights inflammatory processes. The potential that this research will identify biomarkers of schizophrenia is discussed. RESULTS Recent studies have not identified clear biomarkers for schizophrenia. Although several molecular pathways have emerged as potential candidates for future research, a complete understanding of these metabolic pathways is required to reveal better treatment modalities for this disabling condition. CONCLUSIONS Large longitudinal cohort studies are essential that pair a thorough phenotypic and clinical evaluation for example with gene expression and proteome analysis in blood at multiple time points. This approach might identify biomarkers that allow patients to be stratified according to treatment response and ideally also allow treatment response to be predicted. Improved knowledge of molecular pathways and epigenetic mechanisms, including their potential association with environmental influences, will facilitate the discovery of biomarkers that could ultimately be effective tools in clinical practice.
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Affiliation(s)
- Andrea Schmitt
- a Department of Psychiatry and Psychotherapy , LMU Munich , Germany.,b Laboratory of Neuroscience (LIM27) , Institute of Psychiatry, University of Sao Paulo , Sao Paulo , Brazil
| | - Daniel Martins-de-Souza
- b Laboratory of Neuroscience (LIM27) , Institute of Psychiatry, University of Sao Paulo , Sao Paulo , Brazil.,c Laboratory of Neuroproteomics, Department of Biochemistry , Institute of Biology University of Campinas (UNICAMP), Campinas , SP , Brazil
| | - Schahram Akbarian
- d Division of Psychiatric Epigenomics, Departments of Psychiatry and Neuroscience , Mount Sinai School of Medicine , New York , USA
| | - Juliana S Cassoli
- c Laboratory of Neuroproteomics, Department of Biochemistry , Institute of Biology University of Campinas (UNICAMP), Campinas , SP , Brazil
| | - Hannelore Ehrenreich
- e Clinical Neuroscience , Max Planck Institute of Experimental Medicine, DFG Centre for Nanoscale Microscopy & Molecular Physiology of the Brain , Göttingen , Germany
| | - Andre Fischer
- f Research Group for Epigenetics in Neurodegenerative Diseases , German Centre for Neurodegenerative Diseases (DZNE), Göttingen , Germany.,g Department of Psychiatry and Psychotherapy , University Medical Centre Göttingen , Germany
| | - Alfred Fonteh
- h Neurosciences , Huntington Medical Research Institutes , Pasadena , CA , USA
| | - Wagner F Gattaz
- b Laboratory of Neuroscience (LIM27) , Institute of Psychiatry, University of Sao Paulo , Sao Paulo , Brazil
| | - Michael Gawlik
- i Department of Psychiatry and Psychotherapy , University of Würzburg , Germany
| | - Manfred Gerlach
- j Centre for Mental Health, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy , University of Würzburg , Germany
| | - Edna Grünblatt
- i Department of Psychiatry and Psychotherapy , University of Würzburg , Germany.,k Department of Child and Adolescent Psychiatry and Psychotherapy , Psychiatric Hospital, University of Zürich , Switzerland.,l Neuroscience Centre Zurich , University of Zurich and the ETH Zurich , Switzerland.,m Zurich Centre for Integrative Human Physiology , University of Zurich , Switzerland
| | - Tobias Halene
- d Division of Psychiatric Epigenomics, Departments of Psychiatry and Neuroscience , Mount Sinai School of Medicine , New York , USA
| | - Alkomiet Hasan
- a Department of Psychiatry and Psychotherapy , LMU Munich , Germany
| | - Kenij Hashimoto
- n Division of Clinical Neuroscience , Chiba University Centre for Forensic Mental Health , Chiba , Japan
| | - Yong-Ku Kim
- o Department of Psychiatry , Korea University, College of Medicine , Republic of Korea
| | | | - Johannes Kornhuber
- p Department of Psychiatry and Psychotherapy , Friedrich-Alexander-University Erlangen-Nuremberg , Erlangen , Germany
| | | | - Berend Malchow
- a Department of Psychiatry and Psychotherapy , LMU Munich , Germany
| | - Juliana M Nascimento
- c Laboratory of Neuroproteomics, Department of Biochemistry , Institute of Biology University of Campinas (UNICAMP), Campinas , SP , Brazil
| | - Moritz Rossner
- r Department of Psychiatry, Molecular and Behavioural Neurobiology , LMU Munich , Germany.,s Research Group Gene Expression , Max Planck Institute of Experimental Medicine , Göttingen , Germany
| | - Markus Schwarz
- t Institute for Laboratory Medicine, LMU Munich , Germany
| | - Johann Steiner
- u Department of Psychiatry , University of Magdeburg , Magdeburg , Germany
| | - Leda Talib
- b Laboratory of Neuroscience (LIM27) , Institute of Psychiatry, University of Sao Paulo , Sao Paulo , Brazil
| | - Florence Thibaut
- v Department of Psychiatry , University Hospital Cochin (site Tarnier), University of Paris-Descartes, INSERM U 894 Centre Psychiatry and Neurosciences , Paris , France
| | - Peter Riederer
- w Center of Psychic Health; Department of Psychiatry, Psychosomatics and Psychotherapy , University Hospital of Würzburg , Germany
| | - Peter Falkai
- a Department of Psychiatry and Psychotherapy , LMU Munich , Germany
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Fernández R, González P, Lage S, Garate J, Maqueda A, Marcaida I, Maguregui M, Ochoa B, Rodríguez FJ, Fernández JA. Influence of the Cation Adducts in the Analysis of Matrix-Assisted Laser Desorption Ionization Imaging Mass Spectrometry Data from Injury Models of Rat Spinal Cord. Anal Chem 2017; 89:8565-8573. [DOI: 10.1021/acs.analchem.7b02650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Roberto Fernández
- Department
of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Pau González
- Laboratory
of Molecular Neurology, Hospital Nacional de Parapléjicos (HNP), Finca la Peraleda s/n, 45071 Toledo, Spain
| | - Sergio Lage
- Department
of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Jone Garate
- Department
of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Alfredo Maqueda
- Laboratory
of Molecular Neurology, Hospital Nacional de Parapléjicos (HNP), Finca la Peraleda s/n, 45071 Toledo, Spain
| | - Iker Marcaida
- Department
of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Maite Maguregui
- Department
of Analytical Chemistry, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006, Vitoria-Gasteiz, Spain
| | - Begoña Ochoa
- Department
of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
| | - F. Javier Rodríguez
- Laboratory
of Molecular Neurology, Hospital Nacional de Parapléjicos (HNP), Finca la Peraleda s/n, 45071 Toledo, Spain
| | - José A. Fernández
- Department
of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
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25
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Gónzalez de San Román E, Manuel I, Giralt MT, Ferrer I, Rodríguez-Puertas R. Imaging mass spectrometry (IMS) of cortical lipids from preclinical to severe stages of Alzheimer's disease. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1604-1614. [PMID: 28527668 DOI: 10.1016/j.bbamem.2017.05.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 05/12/2017] [Accepted: 05/14/2017] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease affecting millions of patients worldwide. Previous studies have demonstrated alterations in the lipid composition of lipid extracts from plasma and brain samples of AD patients. However, there is no consensus regarding the qualitative and quantitative changes of lipids in brains from AD patients. In addition, the recent developments in imaging mass spectrometry methods are leading to a new stage in the in situ analysis of lipid species in brain tissue slices from human postmortem samples. The present study uses the matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS), permitting the direct anatomical analysis of lipids in postmortem brain sections from AD patients, which are compared with the intensity of the lipid signal in samples from matched subjects with no neurological diseases. The frontal cortex samples from AD patients were classified in three groups based on Braak's histochemical criteria, ranging from non-cognitively impaired patients to those severely affected. The main results indicate a depletion of different sulfatide lipid species from the earliest stages of the disease in both white and gray matter areas of the frontal cortex. Therefore, the decrease in sulfatides in cortical areas could be considered as a marker of the disease, but may also indicate neurochemical modifications related to the pathogenesis of the disease. This article is part of a Special Issue entitled: Membrane Lipid Therapy: Drugs Targeting Biomembranes edited by Pablo V. Escribá.
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Affiliation(s)
- E Gónzalez de San Román
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B Sarriena s/n, 48940 Leioa, Spain
| | - I Manuel
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B Sarriena s/n, 48940 Leioa, Spain
| | - M T Giralt
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B Sarriena s/n, 48940 Leioa, Spain
| | - I Ferrer
- Institut Neuropatologia, Servei Anatomia Patologica, IDIBELL - Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain; Departament de Patologia i Terapèutica Experimental, Universitat de Barcelona, Barcelona, Spain
| | - R Rodríguez-Puertas
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B Sarriena s/n, 48940 Leioa, Spain.
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26
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Martínez-Gardeazabal J, González de San Román E, Moreno-Rodríguez M, Llorente-Ovejero A, Manuel I, Rodríguez-Puertas R. Lipid mapping of the rat brain for models of disease. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1548-1557. [PMID: 28235468 DOI: 10.1016/j.bbamem.2017.02.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/10/2017] [Accepted: 02/18/2017] [Indexed: 11/19/2022]
Abstract
Lipids not only constitute the primary component of cellular membranes and contribute to metabolism but also serve as intracellular signaling molecules and bind to specific membrane receptors to control cell proliferation, growth and convey neuroprotection. Over the last several decades, the development of new analytical techniques, such as imaging mass spectrometry (IMS), has contributed to our understanding of their involvement in physiological and pathological conditions. IMS allows researchers to obtain a wide range of information about the spatial distribution and abundance of the different lipid molecules that is crucial to understand brain functions. The primary aim of this study was to map the spatial distribution of different lipid species in the rat central nervous system (CNS) using IMS to find a possible relationship between anatomical localization and physiology. The data obtained were subsequently applied to a model of neurological disease, the 192IgG-saporin lesion model of memory impairment. The results were obtained using a LTQ-Orbitrap XL mass spectrometer in positive and negative ionization modes and analyzed by ImageQuest and MSIReader software. A total of 176 different molecules were recorded based on the specific localization of their intensities. However, only 34 lipid species in negative mode and 51 in positive were assigned to known molecules with an error of 5ppm. These molecules were grouped by different lipid families, resulting in: Phosphatidylcholines (PC): PC (34: 1)+K+ and PC (32: 0)+K+ distributed primarily in gray matter, and PC (36: 1)+K+ and PC (38: 1)+Na+ distributed in white matter. Phosphatidic acid (PA): PA (38: 3)+K+ in white matter, and PA (38: 5)+K+ in gray matter and brain ventricles. Phosphoinositol (PI): PI (18: 0/20: 4)-H+ in gray matter, and PI (O-30: 1) or PI (P-30: 0)-H+ in white matter. Phosphatidylserines (PS): PS (34: 1)-H+ in gray matter, and PS (38: 1)-H+ in white matter. Sphingomyelin (SM) SM (d18: 1/16: 0)-H+ in ventricles and SM (d18: 1/18: 0)-H+ in gray matter. Sulfatides (ST): ST (d18: 1/24: 1)-H+ in white matter. The specific distribution of different lipids supports their involvement not only in structural and metabolic functions but also as intracellular effectors or specific receptor ligands and/or precursors. Moreover, the specific localization in the CNS described here will enable us to analyze lipid distribution to identify their physiological conditions in rat models of neurodegenerative pathologies, such as Alzheimer's disease. This article is part of a Special Issue entitled: Membrane Lipid Therapy: Drugs Targeting Biomembranes edited by Pablo V. Escribá.
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Affiliation(s)
- J Martínez-Gardeazabal
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B° Sarriena s/n, 48940 Leioa, Spain
| | - E González de San Román
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B° Sarriena s/n, 48940 Leioa, Spain
| | - M Moreno-Rodríguez
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B° Sarriena s/n, 48940 Leioa, Spain
| | - A Llorente-Ovejero
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B° Sarriena s/n, 48940 Leioa, Spain
| | - I Manuel
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B° Sarriena s/n, 48940 Leioa, Spain
| | - R Rodríguez-Puertas
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), B° Sarriena s/n, 48940 Leioa, Spain.
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27
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Mendis LHS, Grey AC, Faull RLM, Curtis MA. Hippocampal lipid differences in Alzheimer's disease: a human brain study using matrix-assisted laser desorption/ionization-imaging mass spectrometry. Brain Behav 2016; 6:e00517. [PMID: 27781133 PMCID: PMC5064331 DOI: 10.1002/brb3.517] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 05/18/2016] [Accepted: 05/21/2016] [Indexed: 11/11/2022] Open
Abstract
INTRODUCTION Alzheimer's disease (AD), the leading cause of dementia, is pathologically characterized by β-amyloid plaques and tau tangles. However, there is also evidence of lipid dyshomeostasis-mediated AD pathology. Given the structural diversity of lipids, mass spectrometry is a useful tool for studying lipid changes in AD. Although there have been a few studies investigating lipid changes in the human hippocampus in particular, there are few reports on how lipids change in each hippocampal subfield (e.g., Cornu Ammonis [CA] 1-4, dentate gyrus [DG] etc.). Since each subfield has its own function, we postulated that there could be lipid changes that are unique to each. METHODS We used matrix-assisted laser desorption/ionization-imaging mass spectrometry to investigate specific lipid changes in each subfield in AD. Data from the hippocampus region of six age- and gender-matched normal and AD pairs were analyzed with SCiLS lab 2015b software (SCiLS GmbH, Germany; RRID:SCR_014426), using an analysis workflow developed in-house. Hematoxylin, eosin, and luxol fast blue staining were used to precisely delineate each anatomical hippocampal subfield. Putative lipid identities, which were consistent with published data, were assigned using MS/MS. RESULTS Both positively and negatively charged lipid ion species were abundantly detected in normal and AD tissue. While the distribution pattern of lipids did not change in AD, the abundance of some lipids changed, consistent with trends that have been previously reported. However, our results indicated that the majority of these lipid changes specifically occur in the CA1 region. Additionally, there were many lipid changes that were specific to the DG. CONCLUSIONS Matrix-assisted laser desorption/ionization-imaging mass spectrometry and our analysis workflow provide a novel method to investigate specific lipid changes in hippocampal subfields. Future work will focus on elucidating the role that specific lipid differences in each subfield play in AD pathogenesis.
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Affiliation(s)
- Lakshini H. S. Mendis
- Centre for Brain ResearchFaculty of Medical and Health ScienceUniversity of AucklandAucklandNew Zealand
- Department of Anatomy and Medical Imaging Faculty of Medical and Health ScienceUniversity of AucklandAucklandNew Zealand
| | - Angus C. Grey
- Centre for Brain ResearchFaculty of Medical and Health ScienceUniversity of AucklandAucklandNew Zealand
- Department of PhysiologyFaculty of Medical and Health ScienceUniversity of AucklandAucklandNew Zealand
| | - Richard L. M. Faull
- Centre for Brain ResearchFaculty of Medical and Health ScienceUniversity of AucklandAucklandNew Zealand
- Department of Anatomy and Medical Imaging Faculty of Medical and Health ScienceUniversity of AucklandAucklandNew Zealand
| | - Maurice A. Curtis
- Centre for Brain ResearchFaculty of Medical and Health ScienceUniversity of AucklandAucklandNew Zealand
- Department of Anatomy and Medical Imaging Faculty of Medical and Health ScienceUniversity of AucklandAucklandNew Zealand
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28
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Fernández R, Carriel V, Lage S, Garate J, Díez-García J, Ochoa B, Castro B, Alaminos M, Fernández JA. Deciphering the Lipid Architecture of the Rat Sciatic Nerve Using Imaging Mass Spectrometry. ACS Chem Neurosci 2016; 7:624-32. [PMID: 27043994 DOI: 10.1021/acschemneuro.6b00010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Knowledge on the normal structure and molecular composition of the peripheral nerves is essential to understand their pathophysiology and to select the regeneration strategies after injury. However, the precise lipid composition of the normal peripheral nerve is still poorly known. Here, we present the first study of distribution of individual lipids in the mature sciatic nerve of rats by imaging mass spectrometry. Both positive and negative ion modes were used to detect, identify and in situ map 166 molecular species of mainly glycerophospholipids, sphingomyelins, sulfatides, and diacyl and triacylglycerols. In parallel, lipid extracts were analyzed by LC-MS/MS to verify and complement the identification of lipids directly from the whole tissue. Three anatomical regions were clearly identified by its differential lipid composition: the nerve fibers, the connective tissue and the adipose tissue that surrounds the nerve. Unexpectedly, very little variety of phosphatidylcholine (PC) species was found, being by far PC 34:1 the most abundant species. Also, a rich composition on sulfatides was detected in fibers, probably due to the important role they play in the myelin cover around axons, as well as an abundance of storage lipids in the adipose and connective tissues. The database of lipids here presented for each region and for the whole sciatic nerve is a first step toward understanding the variety of the peripheral nerves' lipidome and its changes associated with different diseases and mechanical injuries.
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Affiliation(s)
| | - Víctor Carriel
- Tissue
Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18012 Granada, Spain
| | | | | | | | | | - Begoña Castro
- Histocell, S.L., Bizkaia Technology Park 800, 48160 Derio, Spain
| | - Miguel Alaminos
- Tissue
Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18012 Granada, Spain
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Huang L, Deng M, Fang Y, Li L. Dynamic changes of five neurotransmitters and their related enzymes in various rat tissues following β-asarone and levodopa co-administration. Exp Ther Med 2015; 10:1566-1572. [PMID: 26622527 DOI: 10.3892/etm.2015.2704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 07/23/2015] [Indexed: 12/30/2022] Open
Abstract
The aim of the present study was to investigate the dynamic changes of five neurotransmitters and their associated enzymes in the rat plasma and brain tissues following the co-administration of β-asarone and levodopa (L-dopa). The rats were divided into five groups, including the control group and four treatment groups that were intragastrically co-administered β-asarone and L-dopa and sacrificed at 1, 5, 18 and 48 h, respectively. Neurotransmitter levels in the brain tissues and plasma were detected using high performance liquid chromatograph and the related enzymes of dopamine (DA) were measured using an enzyme-linked immunosorbent assay. The results indicated that the striatal levels of L-dopa and 3,4-dihydroxyphenylacetic acid (DOPAC) peaked at 1 h and then returned to the normal levels, while the striatal levels of DA were stable within 48 h. In the cortex and hippocampus tissue, L-dopa, DA, DOPAC and homovanillic acid (HVA) levels peaked at 1 h and then returned to normal levels. In the plasma, L-dopa, DA, DOPAC and HVA levels peaked at 1 h. Compared with the control group, L-dopa, DA and HVA levels were higher between 18 and 48 h, whereas the DOPAC level was lower. By contrast, no statistically significant differences were observed in the serotonin (5-HT) levels among the plasma, hippocampus, cortex and striatum. Furthermore, the DA/L-dopa ratio in the brain tissues and plasma increased in the first 5 h, while (DOPAC + HVA)/DA ratios demonstrated a significant reduction. Striatal tyrosine hydroxylase (TH) and aromatic amino acid decarboxylase (AADC) levels were higher compared with the control group; however, catechol-O-methyltransferase (COMT) and monoamine oxidase B levels were reduced. In the rat plasma, TH and COMT peaked at 1 h, while AADC peaked at 5 h. In conclusion, the results of the present study indicate that the co-administration of L-dopa and β-asarone may be used to maintain a stable striatal DA level within 48 h. In addition, this treatment may promote DA generation by AADC and reduce the metabolism of DA by COMT.
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Affiliation(s)
- Liping Huang
- Laboratory Center, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, P.R. China ; Hainan Medical University, Haikou, Hainan 571199, P.R. China
| | - Minzhen Deng
- Laboratory Center, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, P.R. China
| | - Yongqi Fang
- Laboratory Center, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, P.R. China
| | - Ling Li
- Laboratory Center, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, P.R. China
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Cummings BS, Pati S, Sahin S, Scholpa NE, Monian P, Trinquero PO, Clark JK, Wagner JJ. Differential effects of cocaine exposure on the abundance of phospholipid species in rat brain and blood. Drug Alcohol Depend 2015; 152:147-56. [PMID: 25960140 PMCID: PMC4458179 DOI: 10.1016/j.drugalcdep.2015.04.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 04/08/2015] [Accepted: 04/08/2015] [Indexed: 01/19/2023]
Abstract
BACKGROUND Lipid profiles in the blood are altered in human cocaine users, suggesting that cocaine exposure can induce lipid remodeling. METHODS Lipid changes in the brain tissues of rats sensitized to cocaine were determined through shotgun lipidomics using electrospray ionization-mass spectrometry (ESI-MS). We also performed pairwise principal component analysis (PCA) to assess cocaine-induced changes in blood lipid profiles. Alterations in the abundance of phospholipid species were correlated with behavioral changes in the magnitude of either the initial response to the drug or locomotor sensitization. RESULTS Behavioral sensitization altered the relative abundance of several phospholipid species in the hippocampus and cerebellum, measured one week following the final exposure to cocaine. In contrast, relatively few effects on phospholipids in either the dorsal or the ventral striatum were observed. PCA analysis demonstrated that cocaine altered the relative abundance of several glycerophospholipid species as compared to saline-injected controls in blood. Subsequent MS/MS analysis identified some of these lipids as phosphatidylethanolamines, phosphatidylserines and phosphatidylcholines. The relative abundance of some of these phospholipid species were well-correlated (R(2) of 0.7 or higher) with either the initial response to cocaine or locomotor sensitization. CONCLUSION Taken together, these data demonstrate that a cocaine-induced sensitization assay results in the remodeling of specific phospholipids in rat brain tissue in a region-specific manner and also alters the intensities of certain types of phospholipid species in rat blood. These results further suggest that such changes may serve as biomarkers to assess the neuroadaptations occurring following repeated exposure to cocaine.
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Affiliation(s)
- Brian S. Cummings
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens GA, 30602,Corresponding Authors: Brian S. Cummings, 336 College of Pharmacy South, University of Georgia, Athens, GA 30602, Phone: 706-542-3792, Fax: 706-542-5358, . John J. Wagner, 501 D.W. Brooks, University of Georgia, Athens, GA 30602, 706 542-6428, 706 542-3015,
| | - Sumitra Pati
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens GA, 30602
| | - Serap Sahin
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens GA, 30602,Cumhuriyet University, Faculty of Pharmacy, Department of Biochemistry, 58140 Sivas, Turkey
| | - Natalie E. Scholpa
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens GA, 30602
| | - Prashant Monian
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens GA, 30602
| | - Paul O. Trinquero
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens GA, 30602
| | - Jason K. Clark
- Department of Pharmacology and Physiology, College of Veterinary Medicine, University of Georgia, Athens GA, 30602
| | - John J. Wagner
- Department of Pharmacology and Physiology, College of Veterinary Medicine, University of Georgia, Athens GA, 30602,Corresponding Authors: Brian S. Cummings, 336 College of Pharmacy South, University of Georgia, Athens, GA 30602, Phone: 706-542-3792, Fax: 706-542-5358, . John J. Wagner, 501 D.W. Brooks, University of Georgia, Athens, GA 30602, 706 542-6428, 706 542-3015,
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Manuel I, Barreda-Gómez G, González de San Román E, Veloso A, Fernández JA, Giralt MT, Rodríguez-Puertas R. Neurotransmitter receptor localization: from autoradiography to imaging mass spectrometry. ACS Chem Neurosci 2015; 6:362-73. [PMID: 25648777 DOI: 10.1021/cn500281t] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Autoradiography is used to determine the anatomical distribution of biological molecules in human tissue and experimental animal models. This method is based on the analysis of the specific binding of radiolabeled compounds to locate neurotransmitter receptors or transporters in fresh frozen tissue slices. The anatomical resolution obtained by quantification of the radioligands has allowed the density of receptor proteins to be mapped over the last 40 years. The data yielded by autoradiography identify the receptors at their specific microscopic localization in the tissues and also in their native microenvironment, the intact cell membrane. Furthermore, in functional autoradiography, the effects of small molecules on the activity of G protein-coupled receptors are evaluated. More recently, autoradiography has been combined with membrane microarrays to improve the high-throughput screening of compounds. These technical advances have made autoradiography an essential analytical method for the progress of drug discovery. We include the future prospects and some preliminary results for imaging mass spectrometry (IMS) as a useful new method in pharmacodynamic and pharmacokinetic studies, complementing autoradiographic studies. IMS results could also be presented as density maps of molecules, proteins, and metabolites in tissue sections that can be identified, localized, and quantified, with the advantage of avoiding any labeling of marker molecules. The limitations and future developments of these techniques are discussed here.
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Affiliation(s)
| | - Gabriel Barreda-Gómez
- IMG Pharma Biotech S.L. Parque Tecnológico de Zamudio, Astondo Bidea, ed. Kabi 612, Módulo
5, 48160 Derio, Spain
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Barceló-Coblijn G, Fernández JA. Mass spectrometry coupled to imaging techniques: the better the view the greater the challenge. Front Physiol 2015; 6:3. [PMID: 25657625 PMCID: PMC4302787 DOI: 10.3389/fphys.2015.00003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 01/06/2015] [Indexed: 11/13/2022] Open
Abstract
These are definitively exciting times for membrane lipid researchers. Once considered just as the cell membrane building blocks, the important role these lipids play is steadily being acknowledged. The improvement occurred in mass spectrometry techniques (MS) allows the establishment of the precise lipid composition of biological extracts. However, to fully understand the biological function of each individual lipid species, we need to know its spatial distribution and dynamics. In the past 10 years, the field has experienced a profound revolution thanks to the development of MS-based techniques allowing lipid imaging (MSI). Images reveal and verify what many lipid researchers had already shown by different means, but none as convincing as an image: each cell type presents a specific lipid composition, which is highly sensitive to its physiological and pathological state. While these techniques will help to place membrane lipids in the position they deserve, they also open the black box containing all the unknown regulatory mechanisms accounting for such tailored lipid composition. Thus, these results urges to different disciplines to redefine their paradigm of study by including the complexity revealed by the MSI techniques.
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Affiliation(s)
- Gwendolyn Barceló-Coblijn
- Lipids in Human Pathology, Research Unit, Hospital Universitari Son Espases, Institut d'Investigació Sanitària de Palma (IdISPa) Palma, Spain
| | - José A Fernández
- Departamento de Química-Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU) Leioa, Spain
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Yuki D, Sugiura Y, Zaima N, Akatsu H, Takei S, Yao I, Maesako M, Kinoshita A, Yamamoto T, Kon R, Sugiyama K, Setou M. DHA-PC and PSD-95 decrease after loss of synaptophysin and before neuronal loss in patients with Alzheimer's disease. Sci Rep 2014; 4:7130. [PMID: 25410733 PMCID: PMC5382699 DOI: 10.1038/srep07130] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 11/04/2014] [Indexed: 11/25/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease that is characterized by senile plaques, neurofibrillary tangles, synaptic disruption, and neuronal loss. Several studies have demonstrated decreases of docosahexaenoic acid-containing phosphatidylcholines (DHA-PCs) in the AD brain. In this study, we used matrix-assisted laser desorption/ionization imaging mass spectrometry in postmortem AD brain to show that PC molecular species containing stearate and DHA, namely PC(18:0/22:6), was selectively depleted in the gray matter of patients with AD. Moreover, in the brain regions with marked amyloid β (Aβ) deposition, the magnitude of the PC(18:0/22:6) reduction significantly correlated with disease duration. Furthermore, at the molecular level, this depletion was associated with reduced levels of the postsynaptic protein PSD-95 but not the presynaptic protein synaptophysin. Interestingly, this reduction in PC(18:0/22:6) levels did not correlate with the degrees of Aβ deposition and neuronal loss in AD. The analysis of the correlations of key factors and disease duration showed that their effects on the disease time course were arranged in order as Aβ deposition, presynaptic disruption, postsynaptic disruption coupled with PC(18:0/22:6) reduction, and neuronal loss.
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Affiliation(s)
- Dai Yuki
- 1] Department of Cell Biology and Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan [2] Research and Development Headquarters, Lion Corporation, 7-2-1 Hirai, Edogawa-ku, Tokyo 132-0035, Japan
| | - Yuki Sugiura
- 1] Department of Cell Biology and Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan [2] JST Precursory Research for Embryonic Science Technology (PREST) Project, 160-8582 Tokyo, Japan
| | - Nobuhiro Zaima
- 1] Department of Cell Biology and Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan [2] Department of Applied Biological Chemistry, Kinki University, 3327-204 Naka-machi, Nara 631-8505, Japan
| | - Hiroyasu Akatsu
- 1] Choju Medical Institute, Fukushimura Hospital, 19-14 Yamanaka, Noyori-cho, Toyohashi, Aichi 441-8124, Japan [2] Department of Medicine for Aging in Place and Community-Based Medical Education, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Shiro Takei
- 1] Department of Optical Imaging, Medical Photonics Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan [2] JST, ERATO, Sato project, Tokyo 160-8582, Japan
| | - Ikuko Yao
- 1] Department of Optical Imaging, Medical Photonics Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan [2] JST, ERATO, Sato project, Tokyo 160-8582, Japan
| | - Masato Maesako
- School of Human Health Sciences, Kyoto University Graduate School of Medicine, 53 Shogoin kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Ayae Kinoshita
- School of Human Health Sciences, Kyoto University Graduate School of Medicine, 53 Shogoin kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Takayuki Yamamoto
- Choju Medical Institute, Fukushimura Hospital, 19-14 Yamanaka, Noyori-cho, Toyohashi, Aichi 441-8124, Japan
| | - Ryo Kon
- Research and Development Headquarters, Lion Corporation, 7-2-1 Hirai, Edogawa-ku, Tokyo 132-0035, Japan
| | - Keikichi Sugiyama
- 1] Research and Development Headquarters, Lion Corporation, 7-2-1 Hirai, Edogawa-ku, Tokyo 132-0035, Japan [2] Ritsumeikan Global Innovation Research Organization, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Mitsutoshi Setou
- 1] Department of Cell Biology and Anatomy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan [2] JST, ERATO, Sato project, Tokyo 160-8582, Japan
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Jadoul L, Longuespée R, Noël A, De Pauw E. A spiked tissue-based approach for quantification of phosphatidylcholines in brain section by MALDI mass spectrometry imaging. Anal Bioanal Chem 2014; 407:2095-106. [PMID: 25326885 DOI: 10.1007/s00216-014-8232-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/28/2014] [Accepted: 10/01/2014] [Indexed: 10/24/2022]
Abstract
In the last few years, matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) has been successfully used to study the distribution of lipids within tissue sections. However, few efforts have been made to acquire reliable quantitative data regarding the localized concentrations of these molecules. Here we propose an approach based on brain homogenates for the quantification of phosphatidylcholines (PCs) in brain section by MALDI MSI. Homogenates were spiked with a range of PC(16:0 d31/18:1) concentrations. Sections from homogenates and intact brain were simultaneously prepared before being analyzed by MALDI MSI using a Fourier transform ion cyclotron resonance (FT-ICR) analyzer. Standard curves were generated from the signal intensity of the different PC(16:0 d31/18:1) ionic species ([M+H](+), [M+Na](+) and [M+K](+)) detected from the homogenate sections. Localized quantitative data were finally extracted by correlating the standard curves with the signal intensities of endogenous PC (especially PC(16:0/18:1)) ionic species detected on different areas of the brain section. They were consistent with quantitative values found in the literature. This work introduces a new method to take directly into account biological matrix effects for the quantification of lipids as well as other endogenous compounds, in tissue sections by MALDI MSI.
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Affiliation(s)
- Laure Jadoul
- Mass Spectrometry Laboratory, Department of Chemistry, GIGA-Research, University of Liège, 4000, Liège, Belgium,
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35
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Bédard L, Lefèvre T, Morin-Michaud É, Auger M. Besides Fibrillization: Putative Role of the Peptide Fragment 71–82 on the Structural and Assembly Behavior of α-Synuclein. Biochemistry 2014; 53:6463-72. [DOI: 10.1021/bi5008707] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laurie Bédard
- Department of Chemistry,
Regroupement Québécois de Recherche sur la Fonction,
la Structure et l’Ingénierie des Protéines (PROTEO),
Centre de Recherche sur les Matériaux Avancés (CERMA),
Centre Québécois sur les Matériaux Fonctionnels
(CQMF), Université Laval, Québec, Québec G1V 0A6, Canada
| | - Thierry Lefèvre
- Department of Chemistry,
Regroupement Québécois de Recherche sur la Fonction,
la Structure et l’Ingénierie des Protéines (PROTEO),
Centre de Recherche sur les Matériaux Avancés (CERMA),
Centre Québécois sur les Matériaux Fonctionnels
(CQMF), Université Laval, Québec, Québec G1V 0A6, Canada
| | - Émilie Morin-Michaud
- Department of Chemistry,
Regroupement Québécois de Recherche sur la Fonction,
la Structure et l’Ingénierie des Protéines (PROTEO),
Centre de Recherche sur les Matériaux Avancés (CERMA),
Centre Québécois sur les Matériaux Fonctionnels
(CQMF), Université Laval, Québec, Québec G1V 0A6, Canada
| | - Michèle Auger
- Department of Chemistry,
Regroupement Québécois de Recherche sur la Fonction,
la Structure et l’Ingénierie des Protéines (PROTEO),
Centre de Recherche sur les Matériaux Avancés (CERMA),
Centre Québécois sur les Matériaux Fonctionnels
(CQMF), Université Laval, Québec, Québec G1V 0A6, Canada
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Abstract
Alzheimer's disease (AD) is an irreversible, progressive brain disease and can be definitively diagnosed after death through an examination of senile plaques and neurofibrillary tangles in several brain regions. It is to be expected that changes in the concentration and/or localization of low-molecular-weight molecules are linked to the pathological changes that occur in AD, and determining their identity would provide valuable information regarding AD processes. Here, we propose definitive brain metabolic profiling using ultra-performance liquid chromatography coupled with electrospray time-of-flight mass spectrometry analysis. The acquired data were subjected to principal components analysis to differentiate the frontal and parietal lobes of the AD/Control groups. Significant differences in the levels of spermine and spermidine were identified using S-plot, mass spectra, databases and standards. Based on the investigation of the polyamine metabolite pathway, these data establish that the downstream metabolites of ornithine are increased, potentially implicating ornithine decarboxylase activity in AD pathology.
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Castilla-Ortega E, Escuredo L, Bilbao A, Pedraza C, Orio L, Estivill-Torrús G, Santín LJ, de Fonseca FR, Pavón FJ. 1-Oleoyl lysophosphatidic acid: a new mediator of emotional behavior in rats. PLoS One 2014; 9:e85348. [PMID: 24409327 PMCID: PMC3883702 DOI: 10.1371/journal.pone.0085348] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 12/04/2013] [Indexed: 11/18/2022] Open
Abstract
The role of lysophosphatidic acid (LPA) in the control of emotional behavior remains to be determined. We analyzed the effects of the central administration of 1-oleoyl-LPA (LPA 18∶1) in rats tested for food consumption and anxiety-like and depression-like behaviors. For this purpose, the elevated plus-maze, open field, Y maze, forced swimming and food intake tests were performed. In addition, c-Fos expression in the dorsal periaqueductal gray matter (DPAG) was also determined. The results revealed that the administration of LPA 18∶1 reduced the time in the open arms of the elevated plus-maze and induced hypolocomotion in the open field, suggesting an anxiogenic-like phenotype. Interestingly, these effects were present following LPA 18∶1 infusion under conditions of novelty but not under habituation conditions. In the forced swimming test, the administration of LPA 18∶1 dose-dependently increased depression-like behavior, as evaluated according to immobility time. LPA treatment induced no effects on feeding. However, the immunohistochemical analysis revealed that LPA 18∶1 increased c-Fos expression in the DPAG. The abundant expression of the LPA1 receptor, one of the main targets for LPA 18∶1, was detected in this brain area, which participates in the control of emotional behavior, using immunocytochemistry. These findings indicate that LPA is a relevant transmitter potentially involved in normal and pathological emotional responses, including anxiety and depression.
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Affiliation(s)
- Estela Castilla-Ortega
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Leticia Escuredo
- Departamento de Psicobiología, Universidad Complutense de Madrid, Madrid, Spain
| | - Ainhoa Bilbao
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Carmen Pedraza
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Laura Orio
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Departamento de Psicobiología, Universidad Complutense de Madrid, Madrid, Spain
| | - Guillermo Estivill-Torrús
- Unidad de Gestión Clínica de Neurociencias, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Luis J. Santín
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Universidad de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- * E-mail: (LJS); (FRDF)
| | - Fernando Rodríguez de Fonseca
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
- Departamento de Psicobiología, Universidad Complutense de Madrid, Madrid, Spain
- * E-mail: (LJS); (FRDF)
| | - Francisco Javier Pavón
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
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Activation of lysophosphatidic acid receptor by gintonin inhibits Kv1.2 channel activity: Involvement of tyrosine kinase and receptor protein tyrosine phosphatase α. Neurosci Lett 2013; 548:143-8. [DOI: 10.1016/j.neulet.2013.05.048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 05/16/2013] [Accepted: 05/20/2013] [Indexed: 02/07/2023]
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Phospholipids and Alzheimer's disease: alterations, mechanisms and potential biomarkers. Int J Mol Sci 2013; 14:1310-22. [PMID: 23306153 PMCID: PMC3565322 DOI: 10.3390/ijms14011310] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 12/20/2012] [Accepted: 12/24/2012] [Indexed: 02/07/2023] Open
Abstract
Brain is one of the richest organs in lipid content. Phospholipids (glycerophospholipids and sphingolipids) are important building blocks of cell membranes, which provide an optimal environment for protein interactions, trafficking and function. Because of that, alterations in their cellular levels could lead to different pathogenic processes in the brain, such as in Alzheimer’s disease (AD), the most common type of dementia among older populations. There is increasing evidence that phospholipid changes occur during pathogenic processes in AD. It is known that lipids are tightly connected with metabolism of the Amyloid Precursor Protein (APP), which produces Amyloid-beta peptide (Aβ), the main component of senile plaques, which represent the main pathological hallmark of AD. However, the mechanism(s) of the lipid-effect on Aβ metabolism and AD pathogenesis is still not completely understood. This review summarizes the current knowledge on phospholipid changes occurring during normal aging and discusses phospholipid changes in the human brain associated with different stages of AD, as well changes in the cerebrospinal fluid and blood/plasma, which are interesting potential biomarkers for AD diagnosis and disease monitoring. At the end, we have discussed future perspectives of phospholipid changes as potential biomarkers and as targets for development of novel treatment strategies against AD.
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Taki T. Bio-recognition and functional lipidomics by glycosphingolipid transfer technology. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2013; 89:302-20. [PMID: 23883610 PMCID: PMC3758962 DOI: 10.2183/pjab.89.302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 05/10/2013] [Indexed: 06/02/2023]
Abstract
Through glycosphingolipid biochemical research, we developed two types of transcription technologies. One is a biochemical transfer of glycosphingolipids to peptides. The other is a physicochemical transfer of glycosphingolipids in silica gel to the surface of a plastic membrane. Using the first technology, we could prepare peptides which mimic the shapes of glycosphingolipid molecules by biopanning with a phage-displayed peptide library and anti-glycosphingolipid antibodies as templates. The peptides thus obtained showed biological properties and functions similar to those of the original glycosphingolipids, such as lectin binding, glycosidase modulation, inhibition of tumor metastasis and immune response against the original antigen glycosphingolipid, and we named them glyco-replica peptides. The results showed that the newly prepared peptides could be used effectively as a bio-recognition system and suggest that the glyco-replica peptides can be widely applied to therapeutic fields. Using the second technology, we could establish a functional lipidomics with a thin-layer chromatography-blot/matrix-assisted laser desorption ionization-time of flight mass spectrometry (TLC-Blot/MALDI-TOF MS) system. By transferring glycosphingolipids on a plastic membrane surface from a TLC plate, innovative biochemical approaches such as simple purification of individual glycosphingolipids, binding studies, and enzyme reactions could be developed. The combinations of these biochemical approaches and MALDI-TOF MS on the plastic membrane could provide new strategies for glycosphingolipid science and the field of lipidomics. In this review, typical applications of these two transfer technologies are introduced.(Communicated by Kunihiko SUZUKI, M.J.A.).
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Affiliation(s)
- Takao Taki
- Tokushima Institute, Otsuka Pharmaceutical Co., Ltd., Tokushima, Japan.
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Shin TJ, Kim HJ, Kwon BJ, Choi SH, Kim HB, Hwang SH, Lee BH, Lee SM, Zukin RS, Park JH, Kim HC, Rhim H, Lee JH, Nah SY. Gintonin, a ginseng-derived novel ingredient, evokes long-term potentiation through N-methyl-D-aspartic acid receptor activation: involvement of LPA receptors. Mol Cells 2012; 34:563-72. [PMID: 23161173 PMCID: PMC3887827 DOI: 10.1007/s10059-012-0254-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 10/24/2012] [Accepted: 10/25/2012] [Indexed: 10/27/2022] Open
Abstract
Ginseng has been shown to have memory-improving effects in human. However, little is known about the active components and the molecular mechanisms underlying its effects. Recently, we isolated novel lysophosphatidic acids (LPAs)-ginseng protein complex derived from ginseng, gintonin. Gintonin activates G protein-coupled LPA receptors with high affinity. Gintonin activated Ca²⁺-activated Clchannels in Xenopus oocytes through the activation of endogenous LPA receptor. In the present study, we investigated whether the activation of LPA receptor by gintonin is coupled to the regulation of N-methyl-D-aspartic acid (NMDA) receptor channel activity in Xenopus oocytes expressing rat NMDA receptors. The NMDA receptor-mediated ion current (I ( NMDA )) was measured using the two-electrode voltage-clamp technique. In oocytes injected with cRNAs encoding NMDA receptor subunits, gintonin enhanced I ( NMDA ) in a concentration-dependent manner. Gintonin-mediated I ( NMDA ) enhancement was blocked by Ki16425, an LPA1/3 receptor antagonist. Gintonin action was blocked by a PLC inhibitor, IP₃ receptor antagonist, Ca²⁺ chelator, and a tyrosine kinase inhibitor. The site-directed mutation of Ser1308 of the NMDA receptor, which is phosphorylated by protein kinase C (PKC), to an Ala residue, or co-expression of receptor protein tyrosine phosphatase with the NMDA receptor attenuated gintonin action. Moreover, gintonin treatment elicited a transient elevation of [Ca²⁺](i) in cultured hippocampal neurons and elevated longterm potentiation (LTP) in both concentration-dependent manners in rat hippocampal slices. Gintonin-mediated LTP induction was abolished by Ki16425. These results indicate that gintonin-mediated I ( NMDA ) potentiation and LTP induction in the hippocampus via the activation of LPA receptor might be responsible for ginseng-mediated improvement of memory-related brain functions.
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Affiliation(s)
- Tae-Joon Shin
- Department of Physiology, College of Veterinary Medicine and Veterinary Science Research Institute, and Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701,
Korea
| | - Hyeon-Joong Kim
- Department of Physiology, College of Veterinary Medicine and Veterinary Science Research Institute, and Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701,
Korea
| | - Byeong-Jae Kwon
- Graduate School of East-West Medical Science and Research Institute of Medical Nutrition, Kyung Hee University, Yongin 446-701,
Korea
| | - Sun-Hye Choi
- Department of Physiology, College of Veterinary Medicine and Veterinary Science Research Institute, and Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701,
Korea
| | - Hyun-Bum Kim
- Graduate School of East-West Medical Science and Research Institute of Medical Nutrition, Kyung Hee University, Yongin 446-701,
Korea
| | - Sung-Hee Hwang
- Department of Physiology, College of Veterinary Medicine and Veterinary Science Research Institute, and Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701,
Korea
| | - Byung-Hwan Lee
- Department of Physiology, College of Veterinary Medicine and Veterinary Science Research Institute, and Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701,
Korea
| | - Sang-Mok Lee
- Department of Physiology, College of Veterinary Medicine and Veterinary Science Research Institute, and Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701,
Korea
| | - R. Suzanne Zukin
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10461,
USA
| | - Ji-Ho Park
- Graduate School of East-West Medical Science and Research Institute of Medical Nutrition, Kyung Hee University, Yongin 446-701,
Korea
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon 200-701,
Korea
| | - Hyewhon Rhim
- Life Science Division, Korea Institute of Science and Technology, Seoul 130-701,
Korea
| | - Joon-Hee Lee
- Department of Physical Therapy, Sehan University, Yeongam 526-702,
Korea
| | - Seung-Yeol Nah
- Department of Physiology, College of Veterinary Medicine and Veterinary Science Research Institute, and Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701,
Korea
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43
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Chughtai K, Jiang L, Greenwood TR, Glunde K, Heeren RMA. Mass spectrometry images acylcarnitines, phosphatidylcholines, and sphingomyelin in MDA-MB-231 breast tumor models. J Lipid Res 2012; 54:333-44. [PMID: 22930811 DOI: 10.1194/jlr.m027961] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The lipid compositions of different breast tumor microenvironments are largely unknown due to limitations in lipid imaging techniques. Imaging lipid distributions would enhance our understanding of processes occurring inside growing tumors, such as cancer cell proliferation, invasion, and metastasis. Recent developments in MALDI mass spectrometry imaging (MSI) enable rapid and specific detection of lipids directly from thin tissue sections. In this study, we performed multimodal imaging of acylcarnitines, phosphatidylcholines (PC), a lysophosphatidylcholine (LPC), and a sphingomyelin (SM) from different microenvironments of breast tumor xenograft models, which carried tdTomato red fluorescent protein as a hypoxia-response element-driven reporter gene. The MSI molecular lipid images revealed spatially heterogeneous lipid distributions within tumor tissue. Four of the most-abundant lipid species, namely PC(16:0/16:0), PC(16:0/18:1), PC(18:1/18:1), and PC(18:0/18:1), were localized in viable tumor regions, whereas LPC(16:0/0:0) was detected in necrotic tumor regions. We identified a heterogeneous distribution of palmitoylcarnitine, stearoylcarnitine, PC(16:0/22:1), and SM(d18:1/16:0) sodium adduct, which colocalized primarily with hypoxic tumor regions. For the first time, we have applied a multimodal imaging approach that has combined optical imaging and MALDI-MSI with ion mobility separation to spatially localize and structurally identify acylcarnitines and a variety of lipid species present in breast tumor xenograft models.
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Affiliation(s)
- Kamila Chughtai
- FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
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44
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Cerruti CD, Benabdellah F, Laprévote O, Touboul D, Brunelle A. MALDI Imaging and Structural Analysis of Rat Brain Lipid Negative Ions with 9-Aminoacridine Matrix. Anal Chem 2012; 84:2164-71. [DOI: 10.1021/ac2025317] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Christopher D. Cerruti
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS,
Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Farida Benabdellah
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS,
Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Olivier Laprévote
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS,
Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
- Chimie Toxicologie Analytique et
Cellulaire, EA4463, Faculté des Sciences Pharmaceutiques et
Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4 avenue de l’Observatoire,
75006 Paris, France
| | - David Touboul
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS,
Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Alain Brunelle
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS,
Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
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45
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Taki T. An Approach to Glycobiology from Glycolipidomics: Ganglioside Molecular Scanning in the Brains of Patients with Alzheimer’s Disease by TLC-Blot/Matrix Assisted Laser Desorption/Ionization-Time of Flight MS. Biol Pharm Bull 2012; 35:1642-7. [DOI: 10.1248/bpb.b12-00400] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Takao Taki
- Tokushima Institute, Otsuka Pharmaceutical Co., Ltd
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46
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Yuki D, Sugiura Y, Zaima N, Akatsu H, Hashizume Y, Yamamoto T, Fujiwara M, Sugiyama K, Setou M. Hydroxylated and non-hydroxylated sulfatide are distinctly distributed in the human cerebral cortex. Neuroscience 2011; 193:44-53. [PMID: 21802498 DOI: 10.1016/j.neuroscience.2011.07.045] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 07/18/2011] [Accepted: 07/19/2011] [Indexed: 10/17/2022]
Abstract
Sulfatide (ST) is a sphingolipid with an important role in the central nervous system as a major component of the myelin sheath. ST contains a structurally variable ceramide moiety, with a fatty acid substituent of varying carbon-chain length and double-bond number. Hydroxylation at the α-2 carbon position of the fatty acid is found in half the population of ST molecules. Recent genetic studies of fatty acid 2-hydroxylase (FA2H) indicate that these hydroxylated sphingolipids influence myelin sheath stability. However, their distribution is unknown. Matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) enables the analysis of distinct distributions of individual ST molecular species in tissue section. We examined human cerebral cortex tissue sections with MALDI-IMS, identifying and characterizing the distributions of 14 ST species. The distribution analysis reveals that the composition ratios of non-hydroxylated/hydroxylated STs are clearly reversed at the border between white and gray matter; the hydroxylated group is the dominant ST species in the gray matter. These results suggest that hydroxylated STs are highly expressed in oligodendrocytes in gray matter and might form stable myelin sheaths. As a clinical application, we analyzed a brain with Alzheimer's disease (AD) as a representative neurodegenerative disease. Although previous studies of AD pathology have reported that the amount of total ST is decreased in the cerebral cortex, as far as the compositional distributions of STs are concerned, AD brains were similar to those in control brains. In conclusion, we suggest that MALDI-IMS is a useful tool for analysis of the distributions of various STs and this application might provide novel insight in the clinical study of demyelinating diseases.
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Affiliation(s)
- D Yuki
- Research and Development Headquarters, Lion Corporation, 7-2-1 Hirai, Edogawa-ku, Tokyo 132-0035, Japan
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