1
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Wu WJ, Zheng QJ, Liang JW, Zhao HM, Liu BL, Li YW, Feng NX, Cai QY, Xiang L, Mo CH, Li QX. Mining flotation reagents: Quantitative and robust analysis of metal-xanthate complexes in water. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134873. [PMID: 38908182 DOI: 10.1016/j.jhazmat.2024.134873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/25/2024] [Accepted: 06/09/2024] [Indexed: 06/24/2024]
Abstract
Xanthates, common mining flotation reagents, strongly bind thiophilic metals such as copper (Cu), lead (Pb), cadmium (Cd), and zinc (Zn) and consequentially change their bioavailability and mobility upon their discharge into the environment. However, accurate quantification of the metal-xanthate complexes has remained elusive. This study develops a novel and robust method that realizes the accurate quantification of the metal-xanthate complexes resulted from single and multiple reactions of three typical xanthates (ethyl, isopropyl, and butyl xanthates) and four thiophilic metals (Cu, Pb, Cd, and Zn) in water samples. This method uses sulfur (S2-) dissociation, followed by tandem solid phase extraction of C18 + PWAX and subsequent LC-MS/MS analysis. It has a wide linearity range (1-1000 μg/L, R2 ≥ 0.995), low method detection limits (0.002-0.036 μg/L), and good recoveries (70.6-107.0 %) at 0.01-10 mg/L of xanthates. Applications of this method showed ubiquitous occurrence of the metal-xanthate complexes as the primary species in flotation wastewaters, which the concentrations were 4.6-28.9-fold higher than those previously determined. It is the first quantitative method established for the analysis of metal-xanthate complexes in water samples, which is of great importance to comprehensively understand the fate and risks of xanthates in the environment.
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Affiliation(s)
- Wen-Jun Wu
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Qing-Jun Zheng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Jing-Wen Liang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Hai-Ming Zhao
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Bai-Lin Liu
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Yan-Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Nai-Xian Feng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Quan-Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Lei Xiang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
| | - Ce-Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA
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2
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Merivaara A, Puranen J, Sadeghi A, Zashikhina N, Pirskanen L, Lajunen T, Terasaki T, Auriola S, Vellonen KS, Urtti A. Barcode lipids for absolute quantitation of liposomes in ocular tissues. J Control Release 2024; 370:1-13. [PMID: 38615893 DOI: 10.1016/j.jconrel.2024.04.023] [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: 11/28/2023] [Revised: 03/14/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Lipid-based drug formulations are promising systems for improving delivery of drugs to ocular tissues, such as retina. To develop lipid-based systems further, an improved understanding of their pharmacokinetics is required, but high-quality in vivo experiments require a large number of animals, raising ethical and economic questions. In order to expedite in vivo kinetic testing of lipid-based systems, we propose a barcode approach that is based on barcoding liposomes with non-endogenous lipids. We developed and evaluated a liquid-chromatography-mass spectrometry method to quantify many liposomes simultaneously in aqueous humor, vitreous, and neural retina at higher than ±20% precision and accuracy. Furthermore, we showed in vivo suitability of the method in pharmacokinetic evaluation of six different liposomes after their simultaneous injection into the rat vitreal cavity. We calculated pharmacokinetic parameters in vitreous and aqueous humor, quantified liposome concentrations in the retina, and quantitated retinal distribution of the liposomes in the rats. Compared to individual injections of the liposome formulations, the barcode-based study design enabled reduction of animal numbers from 72 to 12. We believe that the proposed approach is reliable and will reduce and refine ocular pharmacokinetic experiments with liposomes and other lipid-based systems.
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Affiliation(s)
- Arto Merivaara
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland.
| | - Jooseppi Puranen
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland
| | - Amir Sadeghi
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland
| | - Natalia Zashikhina
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland
| | - Lea Pirskanen
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland
| | - Tatu Lajunen
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland; Drug Research Program, Division of Pharmaceutical Biosciences, University of Helsinki, Helsinki 00014, Finland
| | - Tetsuya Terasaki
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland
| | - Seppo Auriola
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland.
| | - Kati-Sisko Vellonen
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland
| | - Arto Urtti
- School of Pharmacy, University of Eastern Finland, Yliopistonranta 1 C, Kuopio 70210, Finland; Drug Research Program, Division of Pharmaceutical Biosciences, University of Helsinki, Helsinki 00014, Finland
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3
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Abucayon EG, Sweeney S, Matyas GR. A Reliable Quantification of Cholesterol and 25-Hydroxycholesterol in Liposomal Adjuvant Formulation by Liquid Chromatography High-Resolution Tandem Mass Spectrometry. ACS OMEGA 2024; 9:19637-19644. [PMID: 38708252 PMCID: PMC11064170 DOI: 10.1021/acsomega.4c01524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/01/2024] [Accepted: 04/05/2024] [Indexed: 05/07/2024]
Abstract
Cholesterol, as one of the major components of liposomes, plays a critical role in modulating membrane bilayer permeability, fluidity, and structural stability. Controlling these quality attributes is essential to maintaining the efficacy and fitness of the liposomes in various applications. However, during the manufacture and storage of liposomes, cholesterol has a propensity to undergo oxidative degradation. Hence, an analytical tool that is capable of determining not only the identity and quantity of cholesterol but also its associated degradants is a prerequisite to effective process control and product quality and safety assessments. In this view, a new liquid chromatography electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method with parallel reaction monitoring (PRM) was developed and qualified to accurately quantify cholesterol and monitor the formation of 25-hydroxycholesterol degradant in liposomal drug formulations without the use of an isotopic internal standard (IS). The method was qualified according to the FDA Quality Guidance for Industry: Q2(R1). Study results showed that the method presents good specificity for cholesterol and 25-hydroxycholesterol detection in the liposomal matrix, good sensitivity characterized by LOD/LOQ in the nanomolar range, and accuracy within the range of 80 to 120%. The described method enables accurate evaluation of in-process and product release samples of Army Liposome Formulation with QS21 (ALFQ).
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Affiliation(s)
- Erwin G. Abucayon
- U.S.
Military HIV Research Program, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, Maryland 20910, United States
- Henry
M. Jackson Foundation for the Advancement of Military Medicine, 6720A Rockledge Drive, Bethesda, Maryland 20817, United States
| | - Scott Sweeney
- Avanti
Polar Lipids, LLC, 700
Industrial Park Drive, Alabaster, Alabama 35007, United States
| | - Gary R. Matyas
- U.S.
Military HIV Research Program, Center for Infectious Diseases Research, Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, Maryland 20910, United States
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4
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Du C, Woolcott S, Wahba AS, Hamry SR, Odette WL, Thibodeaux CJ, Marchand P, Mauzeroll J. Evaluation of Quatsome Morphology, Composition, and Stability for Pseudomonas aeruginosa Biofilm Eradication. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1623-1632. [PMID: 38194503 DOI: 10.1021/acs.langmuir.3c02491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Biofilm infections are a major cause of food poisoning and hospital-acquired infections. Quaternary ammonium compounds are a group of effective disinfectants widely used in industry and households, yet their efficacy is lessened when used as antibiofilm agents compared to that against planktonic bacteria. It is therefore necessary to identify alternative formulations of quaternary ammonium compounds to achieve an effective biofilm dispersal. Quaternary ammonium amphiphiles can form vesicular structures termed "quatsomes" in the presence of cholesterol. In addition to their intrinsic antimicrobial properties, quatsomes can also be used for the delivery of other types of antibiotics or biomarkers. In this study, quatsomes were prepared from binary mixtures of cholesterol and mono- or dialkyl-quaternary ammonium compounds; then, the integrity and stability of their vesicular structure were assessed and related to monomer chain number and chain length. The quatsomes were used to treat Pseudomonas aeruginosa biofilms, showing effective antibiofilm abilities comparable to those of their monomers. A systematic liquid chromatography-mass spectrometry method for quantifying quatsome vesicle components was also developed and used to establish the significance of cholesterol in the quatsome self-assembly processes.
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Affiliation(s)
- Changyue Du
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | - Sascha Woolcott
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | | | - Sally R Hamry
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | - William L Odette
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | | | - Patrick Marchand
- Sani-Marc Group, 42 Rue De L'Artisan, Victoriaville, Quebec G6P 7E3, Canada
| | - Janine Mauzeroll
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
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5
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Zhang W, Hu W, Zhu Q, Niu M, An N, Feng Y, Kawamura K, Fu P. Hydroxy fatty acids in the surface Earth system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167358. [PMID: 37793460 DOI: 10.1016/j.scitotenv.2023.167358] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/20/2023] [Accepted: 09/23/2023] [Indexed: 10/06/2023]
Abstract
Lipids are ubiquitous and highly abundant in a wide range of organisms and have been found in various types of environmental media. These molecules play a crucial role as organic tracers by providing a chemical perspective on viewing the material world, as well as offering a wealth of information on metabolic activities. Among the diverse lipid compounds, hydroxy fatty acids (HFAs) with one to multiple hydroxyl groups attached to the carbon chain stand out as important biomarkers for different sources of organic matter. HFAs are widespread in nature and are involved in biotransformation and oxidation processes in living organisms. The unique chemical and physical properties attributed to the hydroxyl group make HFAs ideal biomarkers in biomedicine and environmental toxicology, as well as organic geochemistry. The molecular distribution patterns of HFAs can be unique and diagnostic for a given class of organisms, including animals, plants, and microorganisms. Thus, HFAs can act as a valuable proxy for understanding the ecological relationships between different organisms and their environment. Furthermore, HFAs have numerous industrial applications due to their higher reactivity, viscosity, and solvent miscibility. This review paper integrates the latest research on the sources and chemical analyses of HFAs, as well as their applications in industrial/medicinal production and as biomarkers in environmental studies. This review article also provides insights into the biogeochemical cycles of HFAs in the surface Earth system, highlighting the importance of these compounds in understanding the complex interactions between living organisms and the environment.
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Affiliation(s)
- Wenxin Zhang
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China; Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Wei Hu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China; Tianjin Bohai Rim Coastal Earth Critical Zone National Observation and Research Station, Tianjin University, Tianjin 300072, China.
| | - Quanfei Zhu
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Mutong Niu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Na An
- Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Yuqi Feng
- Department of Chemistry, Wuhan University, Wuhan 430072, China; Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan 430072, China
| | - Kimitaka Kawamura
- Chubu Institute for Advanced Studies, Chubu University, Kasugai 487-8501, Japan
| | - Pingqing Fu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Earth Critical Zone Science and Sustainable Development in Bohai Rim, Tianjin University, Tianjin 300072, China.
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6
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Makki BE, Rahman S. Alzheimer's Disease in Diabetic Patients: A Lipidomic Prospect. Neuroscience 2023; 530:79-94. [PMID: 37652288 DOI: 10.1016/j.neuroscience.2023.08.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/04/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023]
Abstract
Diabetes Mellitus (DM) and Alzheimer's disease (AD) have been two of the most common chronic diseases affecting people worldwide. Type 2 DM (T2DM) is a metabolic disease depicted by insulin resistance, dyslipidemia, and chronic hyperglycemia while AD is a neurodegenerative disease marked by Amyloid β (Aβ) accumulation, neurofibrillary tangles aggregation, and tau phosphorylation. Various clinical, epidemiological, and lipidomics studies have linked those diseases claiming shared pathological pathways raising the assumption that diabetic patients are at an increased risk of developing AD later in their lives. Insulin resistance is the tipping point beyond where advanced glycation end (AGE) products and free radicals are produced leading to oxidative stress and lipid peroxidation. Additionally, different types of lipids are playing a crucial role in the development and the relationship between those diseases. Lipidomics, an analysis of lipid structure, formation, and interactions, evidently exhibits these lipid changes and their direct and indirect effect on Aβ synthesis, insulin resistance, oxidative stress, and neuroinflammation. In this review, we have discussed the pathophysiology of T2DM and AD, the interconnecting pathological pathways they share, and the lipidomics where different lipids such as cholesterol, phospholipids, sphingolipids, and sulfolipids contribute to the underlying features of both diseases. Understanding their role can be beneficial for diagnostic purposes or introducing new drugs to counter AD.
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Affiliation(s)
| | - Sarah Rahman
- School of Medicine, Tehran University of Medical Sciences, Iran
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7
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Kinsey C, Lu T, Deiss A, Vuolo K, Klein L, Rustandi RR, Loughney JW. Determination of lipid content and stability in lipid nanoparticles using ultra high-performance liquid chromatography in combination with a Corona Charged Aerosol Detector. Electrophoresis 2022; 43:1091-1100. [PMID: 34784061 PMCID: PMC8652870 DOI: 10.1002/elps.202100244] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 11/29/2022]
Abstract
For many years, lipid nanoparticles (LNPs) have been used as delivery vehicles for various payloads (especially various oligonucleotides and mRNA), finding numerous applications in drug and vaccine development. LNP stability and bilayer fluidity are determined by the identities and the amounts of the various lipids employed in the formulation and LNP efficacy is determined in large part by the lipid composition which usually contains a cationic lipid, a PEG-lipid conjugate, cholesterol, and a zwitterionic helper phospholipid. Analytical methods developed for LNP characterization must be able to determine not only the identity and content of each individual lipid component (i.e., the parent lipids), but also the associated impurities and degradants. In this work, we describe an efficient and sensitive reversed-phase chromatographic method with charged aerosol detection (CAD) suitable for this purpose. Sample preparation diluent and mobile phase pH conditions are critical and have been optimized for the lipids of interest. This method was validated for its linearity, accuracy, precision, and specificity for lipid analysis to support process and formulation development for new drugs and vaccines.
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Affiliation(s)
- Caleb Kinsey
- Vaccine Analytical Research & DevelopmentMerck & Co. Inc.West PointPennsylvaniaUSA
| | - Tian Lu
- Vaccine Analytical Research & DevelopmentMerck & Co. Inc.West PointPennsylvaniaUSA
| | - Alyssa Deiss
- Vaccine Analytical Research & DevelopmentMerck & Co. Inc.West PointPennsylvaniaUSA
| | - Kim Vuolo
- Vaccine Analytical Research & DevelopmentMerck & Co. Inc.West PointPennsylvaniaUSA
| | - Lee Klein
- Vaccine Analytical Research & DevelopmentMerck & Co. Inc.West PointPennsylvaniaUSA
| | - Richard R. Rustandi
- Vaccine Analytical Research & DevelopmentMerck & Co. Inc.West PointPennsylvaniaUSA
| | - John W. Loughney
- Vaccine Analytical Research & DevelopmentMerck & Co. Inc.West PointPennsylvaniaUSA
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8
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Blume B, Witting M, Schmitt-Kopplin P, Michalke B. Novel Extraction Method for Combined Lipid and Metal Speciation From Caenorhabditis elegans With Focus on Iron Redox Status and Lipid Profiling. Front Chem 2021; 9:788094. [PMID: 34957049 PMCID: PMC8695969 DOI: 10.3389/fchem.2021.788094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/17/2021] [Indexed: 01/31/2023] Open
Abstract
Parkinson´s disease progression is linked to iron redox status homeostasis via reactive oxygen species (ROS) formation, and lipids are the primary targets of ROS. The determination of iron redox status in vivo is challenging and requires specific extraction methods, which are so far tedious and very time-consuming. We demonstrated a novel, faster, and less laborious extraction method using the chelator ethylene glycol l-bis(β-aminoethyl ether)-N,N,N′,N′-tetra acetic acid (EGTA) as a stabilizing agent and synthetic quartz beads for homogenization under an argon atmosphere. Additionally, we combined the metal extraction with a well-established lipid extraction protocol using methyl-tert-butyl ether (MTBE) to avoid the problems of lipid precipitation in frozen samples and to determine lipid profiles and metal species from the same batch. The nonextractable matrix, such as the debris, is removed by centrifugation and digested to determine the total metal content of the sample as well. Lipid profiling using RP-LC–MS demonstrated high accordance of the modified extraction method to the reference method, and the organic solvent does not affect the iron redox status equilibrium. Furthermore, rigorous testing demonstrated the stability of the iron redox status equilibrium during the extraction process, secured by complexation, inert atmosphere, fast preparation, and immediately deep frozen extracts.
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Affiliation(s)
- Bastian Blume
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich - German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Michael Witting
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich - German Research Center for Environmental Health (GmbH), Neuherberg, Germany.,Metabolomics and Proteomics, Helmholtz Center Munich, Neuherberg, Germany.,Chair of Analytical Food Chemistry, TUM School of Life Science, Technical University of Munich, Freising, Germany
| | - Philippe Schmitt-Kopplin
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich - German Research Center for Environmental Health (GmbH), Neuherberg, Germany.,Chair of Analytical Food Chemistry, TUM School of Life Science, Technical University of Munich, Freising, Germany
| | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich - German Research Center for Environmental Health (GmbH), Neuherberg, Germany
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9
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Intracellularly Released Cholesterol from Polymer-Based Delivery Systems Alters Cellular Responses to Pneumolysin and Promotes Cell Survival. Metabolites 2021; 11:metabo11120821. [PMID: 34940579 PMCID: PMC8709088 DOI: 10.3390/metabo11120821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 11/30/2022] Open
Abstract
Cholesterol is highly abundant within all human body cells and modulates critical cellular functions related to cellular plasticity, metabolism, and survival. The cholesterol-binding toxin pneumolysin represents an essential virulence factor of Streptococcus pneumoniae in establishing pneumonia and other pneumococcal infections. Thus, cholesterol scavenging of pneumolysin is a promising strategy to reduce S. pneumoniae induced lung damage. There may also be a second cholesterol-dependent mechanism whereby pneumococcal infection and the presence of pneumolysin increase hepatic sterol biosynthesis. Here we investigated a library of polymer particles varying in size and composition that allow for the cellular delivery of cholesterol and their effects on cell survival mechanisms following pneumolysin exposure. Intracellular delivery of cholesterol by nanocarriers composed of Eudragit E100–PLGA rescued pneumolysin-induced alterations of lipid homeostasis and enhanced cell survival irrespective of neutralization of pneumolysin.
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10
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Tang Y, Ali MM, Sun X, Debrah AA, Wang M, Hou H, Guo Q, Du Z. Development of a high-throughput method for the comprehensive lipid analysis in milk using ultra-high performance supercritical fluid chromatography combined with quadrupole time-of-flight mass spectrometry. J Chromatogr A 2021; 1658:462606. [PMID: 34656840 DOI: 10.1016/j.chroma.2021.462606] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 10/20/2022]
Abstract
Milk lipids are one of the most complex materials in nature and are associated with many physiological functions, hence it is important to comprehensively characterize lipids profiles to evaluate the nutritional value of milk. A quick method was developed by ultra-high performance supercritical fluid chromatography coupled to electrospray ionization quadrupole time-of-flight mass spectrometry (UHPSFC-ESI-QTOF-MS) to analyze the non-polar and polar lipids profiles of cow, goat, buffalo, human milk, and infant formulas in 7 min. All chromatographic conditions were carefully optimized and their effect on the chromatographic behavior of lipid classes and species was discussed. Under optimized conditions, 12 lipid classes (triacylglycerols, diacylglycerols, monoglyceride, fatty acids, phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylserine, phosphatidylglycerol, sphingomyelin, lyso-phosphatidylcholine, and lyso-phosphatidylethanolamine) were separated and each class was further separated in single analysis to facilitate the identification. 250 lipid species in real samples were characterized and quantified. This result demonstrates the applicability of the UHPSFC-ESI-QTOF-MS method in the high-throughput and comprehensive lipid analysis of milk, and will hopefully help to provide nutritionists with the lipid distribution in different types of milk, as well as help in the design of more suitable infant formula for babies.
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Affiliation(s)
- Yan Tang
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Muhammad Mujahid Ali
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xuechun Sun
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Augustine Atta Debrah
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mengyu Wang
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haiyue Hou
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qiaozhen Guo
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention & Control, Beijing 100013, China
| | - Zhenxia Du
- College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing 100029, China.
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11
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Chakraberty R, Reiz B, Cairo CW. Profiling of glycosphingolipids with SCDase digestion and HPLC-FLD-MS. Anal Biochem 2021; 631:114361. [PMID: 34478702 DOI: 10.1016/j.ab.2021.114361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/27/2021] [Accepted: 08/29/2021] [Indexed: 12/01/2022]
Abstract
Lipid components of cells and tissues feature a large diversity of structures that present a challenging problem for molecular analysis. Glycolipids from mammalian cells contain glycosphingolipids (GSLs) as their major glycolipid component, and these structures vary in the identity of the glycan headgroup as well as the structure of the fatty acid and sphingosine (Sph) tails. Analysis of intact GSLs is challenging due to the low abundance of these species. Here, we develop a new strategy for the analysis of lyso-GSL (l-GSL), GSL that retain linkage of the glycan headgroup with the Sph base. The analysis begins with digestion of a GSL sample with sphingolipid ceramide N-deacylase (SCDase), followed by labelling with an amine-reactive fluorophore. The sample was then analyzed by HPLC-FLD-MS and quantitated by addition of an external standard. This method was compared to analysis of GSL glycans after cleavage by an Endoglycoceramidase (EGCase) enzyme and labeling with a fluorophore (2-anthranilic acid, 2AA). The two methods are complementary, with EGCase providing improved signal (due to fewer species) and SCDase providing analysis of lyso-GSL. Importantly the SCDase method provides Sph composition of GSL species. We demonstrate the method on cultured human cells (Jurkat T cells) and tissue homogenate (porcine brain).
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Affiliation(s)
- Radhika Chakraberty
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Bela Reiz
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada
| | - Christopher W Cairo
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada.
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12
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Abbassi-Ghadi N, Antonowicz SS, McKenzie JS, Kumar S, Huang J, Jones EA, Strittmatter N, Petts G, Kudo H, Court S, Hoare JM, Veselkov K, Goldin R, Takáts Z, Hanna GB. De Novo Lipogenesis Alters the Phospholipidome of Esophageal Adenocarcinoma. Cancer Res 2020; 80:2764-2774. [PMID: 32345674 DOI: 10.1158/0008-5472.can-19-4035] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 03/19/2020] [Accepted: 04/23/2020] [Indexed: 11/16/2022]
Abstract
The incidence of esophageal adenocarcinoma is rising, survival remains poor, and new tools to improve early diagnosis and precise treatment are needed. Cancer phospholipidomes quantified with mass spectrometry imaging (MSI) can support objective diagnosis in minutes using a routine frozen tissue section. However, whether MSI can objectively identify primary esophageal adenocarcinoma is currently unknown and represents a significant challenge, as this microenvironment is complex with phenotypically similar tissue-types. Here, we used desorption electrospray ionization-MSI (DESI-MSI) and bespoke chemometrics to assess the phospholipidomes of esophageal adenocarcinoma and relevant control tissues. Multivariate models derived from phospholipid profiles of 117 patients were highly discriminant for esophageal adenocarcinoma both in discovery (AUC = 0.97) and validation cohorts (AUC = 1). Among many other changes, esophageal adenocarcinoma samples were markedly enriched for polyunsaturated phosphatidylglycerols with longer acyl chains, with stepwise enrichment in premalignant tissues. Expression of fatty acid and glycerophospholipid synthesis genes was significantly upregulated, and characteristics of fatty acid acyls matched glycerophospholipid acyls. Mechanistically, silencing the carbon switch ACLY in esophageal adenocarcinoma cells shortened glycerophospholipid chains, linking de novo lipogenesis to the phospholipidome. Thus, DESI-MSI can objectively identify invasive esophageal adenocarcinoma from a number of premalignant tissues and unveils mechanisms of phospholipidomic reprogramming. SIGNIFICANCE: These results call for accelerated diagnosis studies using DESI-MSI in the upper gastrointestinal endoscopy suite, as well as functional studies to determine how polyunsaturated phosphatidylglycerols contribute to esophageal carcinogenesis.
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Affiliation(s)
- Nima Abbassi-Ghadi
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
- Royal Surrey County Hospital, Guildford, Surrey, United Kingdom
| | - Stefan S Antonowicz
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - James S McKenzie
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Sacheen Kumar
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
- Department of Upper GI Surgery, Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
- Division of Radiotherapy & Imaging, Institute of Cancer Research, London, United Kingdom
| | - Juzheng Huang
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Emrys A Jones
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Nicole Strittmatter
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Gemma Petts
- Centre for Pathology, Imperial College London, London, United Kingdom
| | - Hiromi Kudo
- Centre for Pathology, Imperial College London, London, United Kingdom
| | - Stephen Court
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Jonathan M Hoare
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Kirill Veselkov
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Robert Goldin
- Centre for Pathology, Imperial College London, London, United Kingdom
| | - Zoltán Takáts
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.
| | - George B Hanna
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom.
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Margabandhu G, Vanisree AJ. Dopamine, a key factor of mitochondrial damage and neuronal toxicity on rotenone exposure and also parkinsonic motor dysfunction-Impact of asiaticoside with a probable vesicular involvement. J Chem Neuroanat 2020; 106:101788. [PMID: 32278634 DOI: 10.1016/j.jchemneu.2020.101788] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/16/2020] [Accepted: 03/19/2020] [Indexed: 12/18/2022]
Abstract
Persuasive evidence propose that the toxicity of dopamine in parkinsonism and the loss of dopaminergic neurons are the earliest events during the pathogenesis of Parkinson's disease (PD). In our earlier study, Asiaticoside (AS), a triterpenoid saponin isolated from Centella asiatica was shown to exert a neuroprotective effect against hemiparkinsonism, purportedly due to phosphoinositides (PI)-assisted cytodynamics and synaptic function. Here, we evaluate AS in the modulation of dopamine (DA), mitochondrial integrity and neurite variations in vitro and motor dysfunctions in vivo. PC12 cells challenged with rotenone-(ROT) (0.1 μM/mL) were exposed to AS and l-DOPA (10 mM and 20 μM/mL respectively). The protein expressions of Bax and Bcl-2 that regulate cell death were assessed following neurite length assays. Rats were distributed into 6 groups (6 rats/group): Sham, Vehicle controls, ROT-infused (6 μg/μl/kg), AS- treated (50 mg/kg/day), Drug control, and ROT + L-DOPA-treated (6 mg/kg/day) groups. At the end of the experimental period, the rats were sacrificed after performing motor behavioral analysis, and the striatum was dissected out. The contents of synaptic vesicular and cytosolic DA were analyzed. Further, the levels of striatal PI were also measured. ROT had caused significant reduction in the neurite outgrowth in the exposed PC12 cells while the tested concentrations of AS and l-DOPA can exert their protective effect on the stunted neurite growth. The levels of Bax, Bcl-2, and cytochrome c which were significantly disturbed by ROT, could also be affected by AS thereby suggesting its effect on neurons. AS treatment caused an improved motor performance, vesicular and cytosolic DA, and striatal PI. These pre-clinical findings force us to speculate that AS could be a potential drug candidate in combating ROT-induced variations that are possibly precipitated by varied vesicular trafficking of DA.
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Affiliation(s)
- Gopi Margabandhu
- Unit of Molecular Neurobiology, Department of Biochemistry, University of Madras, Guindy Campus, Chennai, 600 025, Tamilnadu, India.
| | - Arambakkam Janardhanam Vanisree
- Unit of Molecular Neurobiology, Department of Biochemistry, University of Madras, Guindy Campus, Chennai, 600 025, Tamilnadu, India.
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Caleb Bagley M, Ekelöf M, Muddiman DC. Determination of Optimal Electrospray Parameters for Lipidomics in Infrared-Matrix-Assisted Laser Desorption Electrospray Ionization Mass Spectrometry Imaging. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:319-325. [PMID: 32031399 PMCID: PMC10861021 DOI: 10.1021/jasms.9b00063] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Infrared matrix-assisted laser desorption ionization (IR-MALDESI) is an ambient mass spectrometry imaging (MSI) technique that relies on electrospray ionization (ESI) for ion generation of desorbed neutrals. Although many mechanisms in IR-MALDESI have been studied in depth, there has not yet been a comprehensive study of how the ESI parameters change the profiles of tissue specific lipids. Acetonitrile (ACN)/water and methanol (MeOH)/water solvent systems and compositions were varied across a series of applied ESI voltages during IR-MALDESI analysis of rat liver tissue. Gradients of 12 min were run from 5 to 95% organic solvent in both positive and negative polarities across 11 voltages between 2.25 and 4.5 kV. These experiments informed longer gradients (25-30 min) across shorter solvent gradient ranges with fewer voltages. Optimal ESI parameters for lipidomics were determined by the number and abundance of detected lipids and the relative proportion of background ions. In positive polarity, the best solvent composition was 60-75% ACN/40-25% H2O with 0.2% formic acid at 3.2 kV applied voltage. The best parameters for negative polarity analysis are 45-55% ACN/55-45% H2O with 1 mM of acetic acid for voltages between 2.25 and 3.2 kV. Using these defined parameters, IR-MALDESI positive polarity lipidomics studies can increase lipid abundances 3-fold, with 15% greater coverage, while an abundance increase of 1.5-fold and 10% more coverage can be achieved relative to commonly used parameters in negative polarity.
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Affiliation(s)
- M. Caleb Bagley
- FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, Raleigh, NC 27695
| | - Måns Ekelöf
- FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, Raleigh, NC 27695
| | - David C. Muddiman
- FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, Raleigh, NC 27695
- Molecular Education, Technology, and Research Innovation Center (METRIC), North Carolina State University, Raleigh, NC 27695
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15
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Cavdarli S, Yamakawa N, Clarisse C, Aoki K, Brysbaert G, Le Doussal JM, Delannoy P, Guérardel Y, Groux-Degroote S. Profiling of O-acetylated Gangliosides Expressed in Neuroectoderm Derived Cells. Int J Mol Sci 2020; 21:ijms21010370. [PMID: 31935967 PMCID: PMC6981417 DOI: 10.3390/ijms21010370] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/31/2019] [Accepted: 12/31/2019] [Indexed: 12/15/2022] Open
Abstract
The expression and biological functions of oncofetal markers GD2 and GD3 were extensively studied in neuroectoderm-derived cancers in order to characterize their potential as therapeutic targets. Using immunological approaches, we previously identified GD3, GD2, and OAcGD2 expression in breast cancer (BC) cell lines. However, antibodies specific for O-acetylated gangliosides are not exempt of limitations, as they only provide information on the expression of a limited set of O-acetylated ganglioside species. Consequently, the aim of the present study was to use structural approaches in order to apprehend ganglioside diversity in melanoma, neuroblastoma, and breast cancer cells, focusing on O-acetylated species that are usually lost under alkaline conditions and require specific analytical procedures. We used purification and extraction methods that preserve the O-acetyl modification for the analysis of native gangliosides by MALDI-TOF. We identified the expression of GM1, GM2, GM3, GD2, GD3, GT2, and GT3 in SK-Mel28 (melanoma), LAN-1 (neuroblastoma), Hs 578T, SUM 159PT, MDA-MB-231, MCF-7 (BC), and BC cell lines over-expressing GD3 synthase. Among O-acetylated gangliosides, we characterized the expression of OAcGM1, OAcGD3, OAcGD2, OAcGT2, and OAcGT3. Furthermore, the experimental procedure allowed us to clearly identify the position of the sialic acid residue that carries the O-acetyl group on b- and c-series gangliosides by MS/MS fragmentation. These results show that ganglioside O-acetylation occurs on both inner and terminal sialic acid residue in a cell type-dependent manner, suggesting different O-acetylation pathways for gangliosides. They also highlight the limitation of immuno-detection for the complete identification of O-acetylated ganglioside profiles in cancer cells.
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Affiliation(s)
- Sumeyye Cavdarli
- Univ. Lille, CNRS, UMR 8576–UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (S.C.); (N.Y.); (C.C.); (G.B.); (P.D.); (Y.G.)
- OGD2 Pharma, Institut de Recherche en Santé de l’Université de Nantes, 44007 Nantes, France;
| | - Nao Yamakawa
- Univ. Lille, CNRS, UMR 8576–UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (S.C.); (N.Y.); (C.C.); (G.B.); (P.D.); (Y.G.)
| | - Charlotte Clarisse
- Univ. Lille, CNRS, UMR 8576–UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (S.C.); (N.Y.); (C.C.); (G.B.); (P.D.); (Y.G.)
| | - Kazuhiro Aoki
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA;
| | - Guillaume Brysbaert
- Univ. Lille, CNRS, UMR 8576–UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (S.C.); (N.Y.); (C.C.); (G.B.); (P.D.); (Y.G.)
| | - Jean-Marc Le Doussal
- OGD2 Pharma, Institut de Recherche en Santé de l’Université de Nantes, 44007 Nantes, France;
| | - Philippe Delannoy
- Univ. Lille, CNRS, UMR 8576–UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (S.C.); (N.Y.); (C.C.); (G.B.); (P.D.); (Y.G.)
| | - Yann Guérardel
- Univ. Lille, CNRS, UMR 8576–UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (S.C.); (N.Y.); (C.C.); (G.B.); (P.D.); (Y.G.)
| | - Sophie Groux-Degroote
- Univ. Lille, CNRS, UMR 8576–UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (S.C.); (N.Y.); (C.C.); (G.B.); (P.D.); (Y.G.)
- Correspondence:
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16
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Torretta E, Barbacini P, Al-Daghri NM, Gelfi C. Sphingolipids in Obesity and Correlated Co-Morbidities: The Contribution of Gender, Age and Environment. Int J Mol Sci 2019; 20:ijms20235901. [PMID: 31771303 PMCID: PMC6929069 DOI: 10.3390/ijms20235901] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/20/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023] Open
Abstract
This paper reviews our present knowledge on the contribution of ceramide (Cer), sphingomyelin (SM), dihydroceramide (DhCer) and sphingosine-1-phosphate (S1P) in obesity and related co-morbidities. Specifically, in this paper, we address the role of acyl chain composition in bodily fluids for monitoring obesity in males and females, in aging persons and in situations of environmental hypoxia adaptation. After a brief introduction on sphingolipid synthesis and compartmentalization, the node of detection methods has been critically revised as the node of the use of animal models. The latter do not recapitulate the human condition, making it difficult to compare levels of sphingolipids found in animal tissues and human bodily fluids, and thus, to find definitive conclusions. In human subjects, the search for putative biomarkers has to be performed on easily accessible material, such as serum. The serum “sphingolipidome” profile indicates that attention should be focused on specific acyl chains associated with obesity, per se, since total Cer and SM levels coupled with dyslipidemia and vitamin D deficiency can be confounding factors. Furthermore, exposure to hypoxia indicates a relationship between dyslipidemia, obesity, oxygen level and aerobic/anaerobic metabolism, thus, opening new research avenues in the role of sphingolipids.
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Affiliation(s)
- Enrica Torretta
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
| | - Pietro Barbacini
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
- Ph.D. school in Molecular and Translational Medicine, University of Milan, 20142 Milan, Italy
| | - Nasser M. Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department,College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
- I.R.C.C.S Orthopedic Institute Galeazzi, R. Galeazzi 4, 20161 Milan, Italy
- Correspondence: ; Tel.: +39-025-033-0475
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17
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de Diego I, Peleg S, Fuchs B. The role of lipids in aging-related metabolic changes. Chem Phys Lipids 2019; 222:59-69. [DOI: 10.1016/j.chemphyslip.2019.05.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/22/2019] [Accepted: 05/28/2019] [Indexed: 12/30/2022]
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18
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Jeanne Dit Fouque K, Ramirez CE, Lewis RL, Koelmel JP, Garrett TJ, Yost RA, Fernandez-Lima F. Effective Liquid Chromatography–Trapped Ion Mobility Spectrometry–Mass Spectrometry Separation of Isomeric Lipid Species. Anal Chem 2019; 91:5021-5027. [DOI: 10.1021/acs.analchem.8b04979] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kevin Jeanne Dit Fouque
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - Cesar E. Ramirez
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - Russell L. Lewis
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, Unites States
| | - Jeremy P. Koelmel
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, Florida 32610, United States
| | - Timothy J. Garrett
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, Florida 32610, United States
| | - Richard A. Yost
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, Unites States
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, Florida 32610, United States
| | - Francisco Fernandez-Lima
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
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19
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Identification of 9-O-acetyl-N-acetylneuraminic acid (Neu5,9Ac2) as main O-acetylated sialic acid species of GD2 in breast cancer cells. Glycoconj J 2019; 36:79-90. [DOI: 10.1007/s10719-018-09856-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 12/18/2018] [Accepted: 12/20/2018] [Indexed: 10/27/2022]
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20
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Iriondo A, Tainta M, Saldias J, Arriba M, Ochoa B, Goñi FM, Martinez-Lage P, Abad-García B. Isopropanol extraction for cerebrospinal fluid lipidomic profiling analysis. Talanta 2018; 195:619-627. [PMID: 30625592 DOI: 10.1016/j.talanta.2018.11.101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 11/26/2018] [Accepted: 11/28/2018] [Indexed: 01/23/2023]
Abstract
The cerebrospinal fluid (CSF) lipidome is attracting increasing attention due to the importance of lipids in brain molecular signaling and their involvement in several neurological diseases. Different solvent systems have been used for the extraction of multiple lipid classes from CSF but no comparative study of the effectiveness of these protocols has been carried out. To optimize CSF lipid extraction for lipidomic measurements by untargeted ultra-high performance liquid chromatography - mass spectrometry, we evaluate and compare two sample preparation protocols, one involving protein precipitation with isopropanol (IPA) and other consisting of a liquid-liquid extraction with chloroform-methanol. For that purpose, human CSF from neurologically healthy and normolipidemic volunteers was used. The criteria established to compare these two methods were based on four critical aspects of sample preparation: simplicity, lipid coverage, reproducibility and recovery efficiencies. We found that both methods were highly reproducible techniques (>75% of the lipids with coefficient of variation (CV) <30%). In terms of recovery, the single-step IPA procedure yielded better values for most of the lipid classes and it was less toxic and simpler than the liquid-liquid extraction method. In relation to lipid coverage, variation in selectivity was observed between methods, providing evidence that IPA was more selective for polar lipids. Overall, IPA precipitation provides excellent results in terms of simplicity of execution, lipid coverage, reproducibility and recovery. We conclude that it is a choice procedure for large-scale, untargeted lipid profiling using UHPLC-MS in CSF analysis.
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Affiliation(s)
- Ane Iriondo
- Center for Research and Advanced Therapies. CITA-Alzheimer Foundation, Mikeletegi 71, 20009 Donostia-San Sebastian, Gipuzkoa, Spain.
| | - Mikel Tainta
- Center for Research and Advanced Therapies. CITA-Alzheimer Foundation, Mikeletegi 71, 20009 Donostia-San Sebastian, Gipuzkoa, Spain.
| | - Jon Saldias
- Center for Research and Advanced Therapies. CITA-Alzheimer Foundation, Mikeletegi 71, 20009 Donostia-San Sebastian, Gipuzkoa, Spain.
| | - Maria Arriba
- Center for Research and Advanced Therapies. CITA-Alzheimer Foundation, Mikeletegi 71, 20009 Donostia-San Sebastian, Gipuzkoa, Spain.
| | - Begoña Ochoa
- Lipids & Liver Research Group, Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Bizkaia, Spain.
| | - Felix M Goñi
- Departamento de Bioquímica, University of the Basque Country (UPV/EHU) and Instituto Biofisika (CSIC), Barrio Sarriena s/n, 48940 Leioa, Bizkaia, Spain.
| | - Pablo Martinez-Lage
- Center for Research and Advanced Therapies. CITA-Alzheimer Foundation, Mikeletegi 71, 20009 Donostia-San Sebastian, Gipuzkoa, Spain.
| | - Beatriz Abad-García
- Central Analysis Service, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Bizkaia, Spain.
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21
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22
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Kotapati HK, Bates PD. A normal phase high performance liquid chromatography method for the separation of hydroxy and non-hydroxy neutral lipid classes compatible with ultraviolet and in-line liquid scintillation detection of radioisotopes. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1102-1103:52-59. [PMID: 30368043 DOI: 10.1016/j.jchromb.2018.10.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/24/2018] [Accepted: 10/13/2018] [Indexed: 11/16/2022]
Abstract
In this paper, we report a method for the separation of hydroxy fatty acid and non-hydroxy fatty acid containing neutral lipid classes via normal phase HPLC with UV detection on a PVA-Sil column. The hexane/isopropanol/methanol/water based method separates all the neutral lipids in 21 min, and subsequently flushes through the polar lipids by 27 min such that prefractionation of neutral and polar lipids are not required, and the column is re-equilibrated for the next run in 15 min, for a total run time of 45 min per sample. The separation was demonstrated at both 1.0 mL/min and 1.5 mL/min for added applicability for fraction collection or inline analysis. Separation of various hydroxy fatty acid containing lipids was demonstrated from three different plant species Ricinus communis, Physaria fendleri, and engineered Arabidopsis thaliana. Additionally, we have combined this method with an in-line liquid scintillation counter for the separation and quantification of 14C labeled lipids obtained from in vivo metabolic flux experiments conducted in the developing seeds of Arabidopsis thaliana.
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Affiliation(s)
- Hari Kiran Kotapati
- Department of Chemistry & Biochemistry, The University of Southern Mississippi, 118 College Drive, Box # 5043, Hattiesburg, MS 39406, USA
| | - Philip D Bates
- Department of Chemistry & Biochemistry, The University of Southern Mississippi, 118 College Drive, Box # 5043, Hattiesburg, MS 39406, USA.
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Lipidomic alterations in lipoproteins of patients with mild cognitive impairment and Alzheimer’s disease by asymmetrical flow field-flow fractionation and nanoflow ultrahigh performance liquid chromatography-tandem mass spectrometry. J Chromatogr A 2018; 1568:91-100. [DOI: 10.1016/j.chroma.2018.07.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/22/2018] [Accepted: 07/04/2018] [Indexed: 12/29/2022]
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24
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Zhu S, Tan P, Ji R, Xiang X, Cai Z, Dong X, Mai K, Ai Q. Influence of a Dietary Vegetable Oil Blend on Serum Lipid Profiles in Large Yellow Croaker ( Larimichthys crocea). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:9097-9106. [PMID: 30095902 DOI: 10.1021/acs.jafc.8b03382] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Serum lipid metabolic responses are associated with certain metabolic disorders induced by dietary habits in mammals. However, such associations have not been reported in fish. Lipidomic analyses were performed to investigate fish lipid metabolic responses to a dietary vegetable oil (VO) blend and to elucidate the mechanism of how the dietary VO blend affects serum lipid profiles. Results showed that the dietary VO blend strongly affects serum lipid profiles, especially the ratio of triglyceride/phosphatidylcholine (TAG/PC), via inhibiting hepatic PC biosynthesis and facilitating hepatic and intestinal lipoprotein assembly. Studies in vitro suggested that changes of serum TAG/PC ratio may be partially attributed to altered fatty acid composition in diets. Additionally, the reduction of 16:0/18:1-PC induced by the dietary VO blend may play a role in abnormal lipid deposition through inhibiting PPARA-mediated activation of β-oxidation. These findings suggested that the serum TAG/PC ratio might be a predictive parameter for abnormal lipid metabolism induced by dietary nutrition in fish.
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Affiliation(s)
- Si Zhu
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) & Key Laboratory of Mariculture (Ministry of Education) , Ocean University of China , 5 Yushan Road , Qingdao , Shangdong 266003 , China
| | - Peng Tan
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) & Key Laboratory of Mariculture (Ministry of Education) , Ocean University of China , 5 Yushan Road , Qingdao , Shangdong 266003 , China
| | - Renlei Ji
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) & Key Laboratory of Mariculture (Ministry of Education) , Ocean University of China , 5 Yushan Road , Qingdao , Shangdong 266003 , China
| | - Xiaojun Xiang
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) & Key Laboratory of Mariculture (Ministry of Education) , Ocean University of China , 5 Yushan Road , Qingdao , Shangdong 266003 , China
| | - Zuonan Cai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) & Key Laboratory of Mariculture (Ministry of Education) , Ocean University of China , 5 Yushan Road , Qingdao , Shangdong 266003 , China
| | - Xiaojing Dong
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) & Key Laboratory of Mariculture (Ministry of Education) , Ocean University of China , 5 Yushan Road , Qingdao , Shangdong 266003 , China
| | - Kangsen Mai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) & Key Laboratory of Mariculture (Ministry of Education) , Ocean University of China , 5 Yushan Road , Qingdao , Shangdong 266003 , China
- Laboratory for Marine Fisheries and Aquaculture , Qingdao National Laboratory for Marine Science and Technology , Qingdao , Shangdong China
| | - Qinghui Ai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) & Key Laboratory of Mariculture (Ministry of Education) , Ocean University of China , 5 Yushan Road , Qingdao , Shangdong 266003 , China
- Laboratory for Marine Fisheries and Aquaculture , Qingdao National Laboratory for Marine Science and Technology , Qingdao , Shangdong China
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George AD, Gay MCL, Trengove RD, Geddes DT. Human Milk Lipidomics: Current Techniques and Methodologies. Nutrients 2018; 10:nu10091169. [PMID: 30149663 PMCID: PMC6164959 DOI: 10.3390/nu10091169] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/17/2018] [Accepted: 08/23/2018] [Indexed: 12/13/2022] Open
Abstract
Human milk contains a complex combination of lipids, proteins, carbohydrates, and minerals, which are essential for infant growth and development. While the lipid portion constitutes only 5% of the total human milk composition, it accounts for over 50% of the infant’s daily energy intake. Human milk lipids vary throughout a feed, day, and through different stages of lactation, resulting in difficulties in sampling standardization and, like blood, human milk is bioactive containing endogenous lipases, therefore appropriate storage is critical in order to prevent lipolysis. Suitable sample preparation, often not described in studies, must also be chosen to achieve the aims of the study. Gas chromatography methods have classically been carried out to investigate the fatty acid composition of human milk lipids, but with the advancement of other chromatographic techniques, such as liquid and supercritical fluid chromatography, as well as mass spectrometry, intact lipids can also be characterized. Despite the known importance, concise and comprehensive analysis of the human milk lipidome is limited, with gaps existing in all areas of human milk lipidomics, discussed in this review. With appropriate methodology and instrumentation, further understanding of the human milk lipidome and the influence it has on infant outcomes can be achieved.
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Affiliation(s)
- Alexandra D George
- School of Molecular Sciences, The University of Western Australia, Crawley, Perth, WA 6009, Australia.
| | - Melvin C L Gay
- School of Molecular Sciences, The University of Western Australia, Crawley, Perth, WA 6009, Australia.
| | - Robert D Trengove
- Separation Science and Metabolomics Laboratory, Murdoch University, Murdoch, Perth, WA 6150, Australia.
| | - Donna T Geddes
- School of Molecular Sciences, The University of Western Australia, Crawley, Perth, WA 6009, Australia.
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26
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Kuschner CE, Choi J, Yin T, Shinozaki K, Becker LB, Lampe JW, Kim J. Comparing phospholipid profiles of mitochondria and whole tissue: Higher PUFA content in mitochondria is driven by increased phosphatidylcholine unsaturation. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1093-1094:147-157. [PMID: 30029201 DOI: 10.1016/j.jchromb.2018.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 06/29/2018] [Accepted: 07/07/2018] [Indexed: 01/26/2023]
Abstract
Phospholipids content in cellular and mitochondrial membranes is essential for maintaining normal function. Previous studies have found a lower polyunsaturated fatty acid (PUFA) content in mitochondria than whole tissue, theorizing decreased PUFA protects against oxidative injury. However, phospholipids (PPLs) are uniquely difficult to quantify without class separation and, as prior approaches have predominately used reverse-phase HPLC or shotgun analysis, quantitation of PPL classes may have been complicated due to the existence of numerous isobaric and isomeric species. We apply normal-phase HPLC with class separation to compare whole tissue and mitochondrial PPL profiles in rat brain, heart, kidney, and liver. In addition, we establish a novel method to ascertain PPL origin, using cardiolipin as a comparator to establish relative cardiolipin /PPL ratios. We report a higher PUFA content in tissue mitochondria driven by increased phosphatidylcholine unsaturation, suggesting mitochondria purposefully incorporate higher PUFA PPLs.
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Affiliation(s)
- Cyrus E Kuschner
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA
| | - Tai Yin
- Department of Emergency Medicine, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Koichiro Shinozaki
- Department of Emergency Medicine, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Lance B Becker
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA; Department of Emergency Medicine, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Joshua W Lampe
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA; Department of Emergency Medicine, Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Junhwan Kim
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA; Department of Emergency Medicine, Feinstein Institute for Medical Research, Manhasset, NY, USA.
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27
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Song S, Cheong LZ, Man QQ, Pang SJ, Li YQ, Ren B, Zhang J. Characterization of potential plasma biomarkers related to cognitive impairment by untargeted profiling of phospholipids using the HILIC-ESI-IT-TOF-MS system. Anal Bioanal Chem 2018. [DOI: 10.1007/s00216-018-0975-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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28
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Yu FPS, Islam D, Sikora J, Dworski S, Gurka J, López-Vásquez L, Liu M, Kuebler WM, Levade T, Zhang H, Medin JA. Chronic lung injury and impaired pulmonary function in a mouse model of acid ceramidase deficiency. Am J Physiol Lung Cell Mol Physiol 2018; 314:L406-L420. [PMID: 29167126 PMCID: PMC5900354 DOI: 10.1152/ajplung.00223.2017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 11/16/2017] [Accepted: 11/16/2017] [Indexed: 11/22/2022] Open
Abstract
Farber disease (FD) is a debilitating lysosomal storage disorder (LSD) caused by a deficiency of acid ceramidase (ACDase) activity due to mutations in the gene ASAH1. Patients with ACDase deficiency may develop a spectrum of clinical phenotypes. Severe cases of FD are frequently associated with neurological involvement, failure to thrive, and respiratory complications. Mice homozygous ( Asah1P361R/P361R) for an orthologous patient mutation in Asah1 recapitulate human FD. In this study, we show significant impairment in lung function, including low compliance and increased airway resistance in a mouse model of ACDase deficiency. Impaired lung mechanics in Farber mice resulted in decreased blood oxygenation and increased red blood cell production. Inflammatory cells were recruited to both perivascular and peribronchial areas of the lung. We observed large vacuolated foamy histiocytes that were full of storage material. An increase in vascular permeability led to protein leakage, edema, and impacted surfactant homeostasis in the lungs of Asah1P361R/P361R mice. Bronchial alveolar lavage fluid (BALF) extraction and analysis revealed accumulation of a highly turbid lipoprotein-like substance that was composed in part of surfactants, phospholipids, and ceramides. The phospholipid composition of BALF from Asah1P361R/P361R mice was severely altered, with an increase in both phosphatidylethanolamine (PE) and sphingomyelin (SM). Ceramides were also found at significantly higher levels in both BALF and lung tissue from Asah1P361R/P361R mice when compared with levels from wild-type animals. We demonstrate that a deficiency in ACDase leads to sphingolipid and phospholipid imbalance, chronic lung injury caused by significant inflammation, and increased vascular permeability, leading to impaired lung function.
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Affiliation(s)
- Fabian P S Yu
- Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada
| | - Diana Islam
- Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada
| | - Jakub Sikora
- Research Unit for Rare Diseases, Department of Pediatrics and Adolescent Medicine, Charles University, First Faculty of Medicine , Prague , Czech Republic
- Institute of Pathology, Charles University, First Faculty of Medicine and General University Hospital , Prague , Czech Republic
| | - Shaalee Dworski
- Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada
| | - Jiří Gurka
- Department of Cardiology, Institute for Clinical and Experimental Medicine , Prague , Czech Republic
| | - Lucía López-Vásquez
- Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada
| | - Mingyao Liu
- Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada
- Department of Physiology, University of Toronto , Toronto Ontario , Canada
- University Health Network , Toronto, Ontario , Canada
| | - Wolfgang M Kuebler
- Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada
- Department of Physiology, University of Toronto , Toronto Ontario , Canada
- Keenan Research Centre for Biomedical Science, Saint Michael's Hospital , Toronto, Ontario , Canada
| | - Thierry Levade
- Laboratoire de Biochimie Métabolique, Institut Fédératif de Biologie, CHU Purpan, and INSERM UMR1037 CRCT, Université de Toulouse , Toulouse , France
| | - Haibo Zhang
- Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada
- Department of Physiology, University of Toronto , Toronto Ontario , Canada
- Keenan Research Centre for Biomedical Science, Saint Michael's Hospital , Toronto, Ontario , Canada
- Department of Anesthesia, University of Toronto , Toronto, Ontario , Canada
| | - Jeffrey A Medin
- Institute of Medical Science, University of Toronto , Toronto, Ontario , Canada
- University Health Network , Toronto, Ontario , Canada
- Departments of Pediatrics and Biochemistry, Medical College of Wisconsin , Milwaukee, Wisconsin
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29
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Characterization of phospholipid profiles in six kinds of nut using HILIC-ESI-IT-TOF-MS system. Food Chem 2018; 240:1171-1178. [DOI: 10.1016/j.foodchem.2017.08.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 07/22/2017] [Accepted: 08/03/2017] [Indexed: 11/21/2022]
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30
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Bang G, Kim YH, Yoon J, Yu YJ, Chung S, Kim JA. On-Chip Lipid Extraction Using Superabsorbent Polymers for Mass Spectrometry. Anal Chem 2017; 89:13365-13373. [DOI: 10.1021/acs.analchem.7b03547] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Geul Bang
- Biomedical
Omics Group, Korea Basic Science Institute, Chungbuk 28119, Republic of Korea
| | - Young Hwan Kim
- Biomedical
Omics Group, Korea Basic Science Institute, Chungbuk 28119, Republic of Korea
- Department
of Bio-Analytical Science, University of Science and Technology, Daejeon 34113, Republic of Korea
- Graduate
School of Analytical Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Junghyo Yoon
- School
of Mechanical Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Yeong Jun Yu
- Biomedical
Omics Group, Korea Basic Science Institute, Chungbuk 28119, Republic of Korea
- Program
in Micro/Nano System, Korea University, Seoul 02841, Republic of Korea
| | - Seok Chung
- School
of Mechanical Engineering, Korea University, Seoul 02841, Republic of Korea
- KU-KIST
Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Jeong Ah Kim
- Biomedical
Omics Group, Korea Basic Science Institute, Chungbuk 28119, Republic of Korea
- Department
of Bio-Analytical Science, University of Science and Technology, Daejeon 34113, Republic of Korea
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31
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Recent advances in lipid separations and structural elucidation using mass spectrometry combined with ion mobility spectrometry, ion-molecule reactions and fragmentation approaches. Curr Opin Chem Biol 2017; 42:111-118. [PMID: 29223060 DOI: 10.1016/j.cbpa.2017.11.009] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/15/2017] [Accepted: 11/19/2017] [Indexed: 12/30/2022]
Abstract
Lipids are a vital class of molecules that play important and varied roles in biological processes, however, fully understanding these roles is extremely difficult due to the immense number and diversity of possible lipid species. While recent advances in chromatography and high resolution mass spectrometry have greatly progressed knowledge about distinct lipid species and functions, effectively separating many lipids still remains problematic. Isomeric lipids have made lipid characterization especially difficult and occur due to subclasses having the same chemical composition, or species having multiple acyl chain connectivities (sn-1, sn-2, or sn-3), double bond positions and orientations (cis or trans), and functional group stereochemistries (R versus S). To aid in isomer characterization, ion mobility spectrometry separations, ion-molecule reactions and fragmentation techniques have increasingly been added to lipid analysis workflows. In this manuscript, we review the current state of these approaches and their capabilities for improving the identification of lipid species.
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32
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Lerner R, Post JM, Ellis SR, Vos DRN, Heeren RMA, Lutz B, Bindila L. Simultaneous lipidomic and transcriptomic profiling in mouse brain punches of acute epileptic seizure model compared to controls. J Lipid Res 2017; 59:283-297. [PMID: 29208697 DOI: 10.1194/jlr.m080093] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/28/2017] [Indexed: 01/07/2023] Open
Abstract
In this study, we report the development of a dual extraction protocol for RNA and lipids, including phospholipids, endocannabinoids, and arachidonic acid, at high spatial resolution, e.g., brain punches obtained from whole frozen brains corresponding to four brain subregions: dorsal hippocampus, ventral hippocampus, basolateral amygdala, and hypothalamus. This extraction method combined with LC/multiple reaction monitoring for lipid quantifi-cation and quantitative PCR for RNA investigation allows lipidomic and transcriptomic profiling from submilligram amounts of tissue, thus benefiting the time and animal costs for analysis and the data reliability due to prevention of biological variability between animal batches and/or tissue heterogeneity, as compared with profiling in distinct animal batches. Moreover, the method allows a higher extraction efficiency and integrity preservation for RNA, while allowing concurrently quantitative analysis of low and high abundant lipids. The method was applied for brain punches obtained 1 h after kainic acid-induced epileptic seizures in mice (n = 10) compared with controls (n = 10), and enabled the provision of valuable new insights into the subregional lipid and RNA changes with epilepsy, highlighting its potential as a new viable tool in quantitative neurobiology.
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Affiliation(s)
- Raissa Lerner
- University Medical Center of Johannes Gutenberg University Mainz, Institute of Physiological Chemistry, 55128 Mainz, Germany; and
| | - Julia M Post
- University Medical Center of Johannes Gutenberg University Mainz, Institute of Physiological Chemistry, 55128 Mainz, Germany; and
| | - Shane R Ellis
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - D R Naomi Vos
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Ron M A Heeren
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Beat Lutz
- University Medical Center of Johannes Gutenberg University Mainz, Institute of Physiological Chemistry, 55128 Mainz, Germany; and
| | - Laura Bindila
- University Medical Center of Johannes Gutenberg University Mainz, Institute of Physiological Chemistry, 55128 Mainz, Germany; and
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33
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Gopi M, Vanisree AJ. Attenuated levels of phospholipids in the striatum of rats infused with rotenone causing hemiparkinsonism as detected by simple dye-lipid complex. IBRO Rep 2017; 3:1-8. [PMID: 30135937 PMCID: PMC6084873 DOI: 10.1016/j.ibror.2017.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 04/24/2017] [Accepted: 06/10/2017] [Indexed: 12/15/2022] Open
Abstract
Parkinson's disease (PD), a progressive neurodegeneration, is characterized by loss of dopaminergic neurons in the substantia nigra (SN) and loss of motor co-ordination. Impaired metabolism of major lipids such as phospholipids which play regulatory roles in cellular functions and signaling has been implicated in the pathology of PD. We aim to investigate the striatal phospholipids (PLs) in hemiparkinsonism infused by rotenone in rats. As there are no cost-effective modes of PL, we have utilized dye-lipid complex technique for the first time in PD models for screening and also for semi-quantifying (individually) the levels of the deregulated PL in brain samples. Rats were divided into 2 groups: i. control and ii. ROT-infused which received intracranial injection of Rotenone (6 μg/μl; flow rate 0.2 μl/min). At the end of experimental period of 14 days, the striatum was dissected out for the analyses of PLs. Dye-based detection of PL and two-dimensional thin-layer chromatographic analyses of PL were performed. Detection of dye-PL complex was possible for phosphatidyl choline (PC), phosphatidyl inositol (PI), and spingomyelin (SM) (but not for phosphatidyl ethanolamine-PE) using dyes viz victoria blue B, toluidine blue and ammonium ferrothiocyanate, respectively. Two-dimensional analyses of phospholipids confirmed the dye-PL complex and depicted significant reduction (p < 0.05) on semi-quantitative assessment, in the striatum of control and hemiparkinsonic rats. We suggest a low level of PLs esp of PI in striatum of rats using a simple dye-detection that was validated by HR-LCMS. The finding implies that a critical role is being played by these PLs (PC, PI and SM) mainly PI (p < 0.001), in rotenone infused hemiparkinsonism, thus deserving wider but simpler investigations to detect and identify their role in parkinsonism.
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Key Words
- AD, Alzheimer's disease
- AFTC, Ammonium ferrothiocyanate
- ANSA, 1 Amino-2 naphthol-4 sulfonic acid
- DA, Dopaminergic neuron
- DMSO, Dimethyl sulfoxide
- Dye-lipid complex
- ESI, Electrospray ionization
- HCl, Hydrochloric acid
- HRLCMS, High resolution liquid chromatography–mass spectrometry
- MRM, Multiple reaction monitor
- MS, Mass spectrometry
- NM, Neuromelanin
- Na.EDTA, Sodium Ethylenediaminetetraacetic acid
- NaCl, Sodium chloride
- PC, Phosphatidyl choline
- PD, Parkinson's disease
- PE, Phosphatidyl ethanolamine
- PI(3,5)P2, Phosphatidylinositol 3,5-bisphosphate
- PI, Phosphoinositide
- PLs, Phospholipids
- Parkinson's disease
- Phospholipids
- PtdIns(3,4,5)P3, Phosphatidylinositol 3,4,5-trisphosphate
- PtdIns(4,5)P2, Phosphatidylinositol 4,5-bisphosphate
- PtdIns5P, Phosphatidylinositol 5-phosphate
- ROT, Rotenone
- Rotenone
- SM, Spingomyelin
- SNpc, Substantia nigra pars compacta
- Striatum
- TB, Toluidine blue dye
- TBAHS, tetrabutyl ammonium hydrogen sulphate
- TEM, Transmission electron microscopy
- TLC, Thin layer chromatography
- VBB, Victoria blue-B dye
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Wang M, Wang C, Han X. Selection of internal standards for accurate quantification of complex lipid species in biological extracts by electrospray ionization mass spectrometry-What, how and why? MASS SPECTROMETRY REVIEWS 2017; 36:693-714. [PMID: 26773411 PMCID: PMC4947032 DOI: 10.1002/mas.21492] [Citation(s) in RCA: 184] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 12/28/2015] [Indexed: 05/20/2023]
Abstract
Lipidomics is rapidly expanding because of the great facilitation of recent advances in, and novel applications of, electrospray ionization mass spectrometry techniques. The greatest demands have been for successful quantification of lipid classes, subclasses, and individual molecular species in biological samples at acceptable accuracy. This review addresses the selection of internal standards in different methods for accurate quantification of individual lipid species. The principles of quantification with electrospray ionization mass spectrometry are first discussed to recognize the essentials for quantification. The basics of different lipidomics approaches are overviewed to understand the variables that need to be considered for accurate quantification. The factors that affect accurate quantification are extensively discussed, and the solutions to resolve these factors are proposed-largely through addition of internal standards. Finally, selection of internal standards for different methods is discussed in detail to address the issues of what, how, and why related to internal standards. We believe that thorough discussion of the topics related to internal standards should aid in quantitative analysis of lipid classes, subclasses, and individual molecular species and should have big impacts on advances in lipidomics. © 2016 Wiley Periodicals, Inc. Mass Spec Rev 36:693-714, 2017.
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Affiliation(s)
- Miao Wang
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827 USA
| | - Chunyan Wang
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827 USA
| | - Xianlin Han
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827 USA
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, 548 Bingwen Road, Hangzhou, Zhejiang 310053, China
- To whom correspondence should be addressed: Xianlin Han, Ph.D., Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, 6400 Sanger Road, Orlando, Florida 32827, USA, Telephone: (407) 745-2139, Fax: (407) 745-2016,
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35
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Gethings LA, Richardson K, Wildgoose J, Lennon S, Jarvis S, Bevan CL, Vissers JPC, Langridge JI. Lipid profiling of complex biological mixtures by liquid chromatography/mass spectrometry using a novel scanning quadrupole data-independent acquisition strategy. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2017; 31:1599-1606. [PMID: 28703389 DOI: 10.1002/rcm.7941] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 07/07/2017] [Accepted: 07/10/2017] [Indexed: 06/07/2023]
Abstract
RATIONALE A novel data-independent acquisition method is detailed that incorporates a scanning quadrupole in front of an orthogonal acceleration time-of-flight (TOF) mass analyser. This approach is described and the attributes are compared and contrasted to other DIA approaches. METHODS Specific application of the method to both targeted and untargeted lipidomic identification strategies is discussed, with data from both shotgun and LC separated lipidomics experiments presented. RESULTS The benefits of the fast quadrupole scanning technique are highlighted, and include improvements in speed and specificity for complex mixtures providing high quality qualitative and quantitative data. CONCLUSIONS In particular the high specificity afforded by the scanning quadrupole improves qualitative information for lipid identification.
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Affiliation(s)
| | | | | | - Sarah Lennon
- Waters Corporation, Stamford Avenue, Wilmslow, UK
| | - Sheba Jarvis
- Department of Surgery and Cancer, Imperial College, London, UK
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36
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Lísa M, Cífková E, Khalikova M, Ovčačíková M, Holčapek M. Lipidomic analysis of biological samples: Comparison of liquid chromatography, supercritical fluid chromatography and direct infusion mass spectrometry methods. J Chromatogr A 2017; 1525:96-108. [PMID: 29037587 DOI: 10.1016/j.chroma.2017.10.022] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 09/25/2017] [Accepted: 10/07/2017] [Indexed: 01/03/2023]
Abstract
Lipidomic analysis of biological samples in a clinical research represents challenging task for analytical methods given by the large number of samples and their extreme complexity. In this work, we compare direct infusion (DI) and chromatography - mass spectrometry (MS) lipidomic approaches represented by three analytical methods in terms of comprehensiveness, sample throughput, and validation results for the lipidomic analysis of biological samples represented by tumor tissue, surrounding normal tissue, plasma, and erythrocytes of kidney cancer patients. Methods are compared in one laboratory using the identical analytical protocol to ensure comparable conditions. Ultrahigh-performance liquid chromatography/MS (UHPLC/MS) method in hydrophilic interaction liquid chromatography mode and DI-MS method are used for this comparison as the most widely used methods for the lipidomic analysis together with ultrahigh-performance supercritical fluid chromatography/MS (UHPSFC/MS) method showing promising results in metabolomics analyses. The nontargeted analysis of pooled samples is performed using all tested methods and 610 lipid species within 23 lipid classes are identified. DI method provides the most comprehensive results due to identification of some polar lipid classes, which are not identified by UHPLC and UHPSFC methods. On the other hand, UHPSFC method provides an excellent sensitivity for less polar lipid classes and the highest sample throughput within 10min method time. The sample consumption of DI method is 125 times higher than for other methods, while only 40μL of organic solvent is used for one sample analysis compared to 3.5mL and 4.9mL in case of UHPLC and UHPSFC methods, respectively. Methods are validated for the quantitative lipidomic analysis of plasma samples with one internal standard for each lipid class. Results show applicability of all tested methods for the lipidomic analysis of biological samples depending on the analysis requirements.
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Affiliation(s)
- Miroslav Lísa
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic.
| | - Eva Cífková
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Maria Khalikova
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Magdaléna Ovčačíková
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Michal Holčapek
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
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37
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Li Y, Lou Y, Mu T, Ke A, Ran Z, Xu J, Chen J, Zhou C, Yan X, Xu Q, Tan Y. Sphingolipids in marine microalgae: Development and application of a mass spectrometric method for global structural characterization of ceramides and glycosphingolipids in three major phyla. Anal Chim Acta 2017; 986:82-94. [PMID: 28870328 DOI: 10.1016/j.aca.2017.07.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 07/14/2017] [Accepted: 07/16/2017] [Indexed: 01/01/2023]
Abstract
Sphingolipid compositions are crucial for the structural and physiological properties of microalgae membranes. In the present study, we developed a quadrupole time-of-flight (Q-TOF) mass spectrometric method based on MSE data collection for the identification of sphingolipids with high efficiency, selectivity, sensitivity and mass accuracy and applied this method for precise structural identification and quantitative profiling of ceramides and glycosphingolipids in total lipid extracts from 17 strains of microalgae, including 11 strains of diatom, 3 strains of dinoflagellate and 3 strains of haptophyta. Using this method, four species of sphingolipids including 27 ceramides, 13 monosaccharide ceramides, 18 disaccharide ceramides and 18 trisaccharide ceramides were identified. The compositions of sphingolipid-included glycosyl moieties, long chain bases and N-acyl chains showed a significant difference among different microalgae categories. Some long chain bases including d19:2, d19:3 and d19:4, glycosyl moieties including disaccharide and trisaccharide, and N-acyl chains such as 14:0, 14:1, 24:0, 24:1, h18:1, h19:1 and h22:0-2 can be chosen as the molecular signature for microalgae from three major phyla. This methodology will be useful for a wide range of physiological and pathological studies of sphingolipids. Furthermore, the diversity of sphingolipid structure could provide a new criterion for microalgae chemotaxonomy.
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Affiliation(s)
- Yanrong Li
- Key Laboratory of Applied Marine Biotechnology, Ningbo University, Chinese Ministry of Education, Ningbo, Zhejiang 315211, China; Ningbo Institute of Oceanography, Ningbo, Zhejiang 315832, China
| | - Yamin Lou
- Key Laboratory of Applied Marine Biotechnology, Ningbo University, Chinese Ministry of Education, Ningbo, Zhejiang 315211, China
| | - Tong Mu
- Ningbo Institute of Oceanography, Ningbo, Zhejiang 315832, China
| | - Aiying Ke
- Zhejiang Mariculture Research Institute, Wenzhou 325000, China
| | - Zhaoshou Ran
- Key Laboratory of Applied Marine Biotechnology, Ningbo University, Chinese Ministry of Education, Ningbo, Zhejiang 315211, China
| | - Jilin Xu
- Key Laboratory of Applied Marine Biotechnology, Ningbo University, Chinese Ministry of Education, Ningbo, Zhejiang 315211, China.
| | - Juanjuan Chen
- Key Laboratory of Applied Marine Biotechnology, Ningbo University, Chinese Ministry of Education, Ningbo, Zhejiang 315211, China
| | - Chengxu Zhou
- Key Laboratory of Applied Marine Biotechnology, Ningbo University, Chinese Ministry of Education, Ningbo, Zhejiang 315211, China
| | - Xiaojun Yan
- Ningbo Institute of Oceanography, Ningbo, Zhejiang 315832, China.
| | - Qingshan Xu
- Lijing Chenhai Baoer Bio. Ltd., Lijiang, Yunnan 674100, China
| | - Yinghong Tan
- Lijing Chenhai Baoer Bio. Ltd., Lijiang, Yunnan 674100, China
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Tailored liquid chromatography–mass spectrometry analysis improves the coverage of the intracellular metabolome of HepaRG cells. J Chromatogr A 2017; 1487:168-178. [DOI: 10.1016/j.chroma.2017.01.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 01/15/2017] [Accepted: 01/22/2017] [Indexed: 12/12/2022]
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Rush MD, van Breemen RB. Role of ammonium in the ionization of phosphatidylcholines during electrospray mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2017; 31:264-268. [PMID: 27862466 PMCID: PMC5253255 DOI: 10.1002/rcm.7788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/04/2016] [Accepted: 11/05/2016] [Indexed: 05/09/2023]
Abstract
RATIONALE Electrospray mass spectrometry methods for the analysis of phosphatidylcholines (PCs) routinely include ammonium acetate or ammonium formate in the mobile phase. In an effort to justify and optimize the use of these additives, we investigated possible functions of ammonium compounds in the ionization of PCs. METHODS Because PCs contain a quaternary amine, the role of ammonium in neutralizing the negatively charged phosphate group was investigated by using deuterated ammonium acetate, adjusting the pH, varying the organic solvent composition, and by comparing the additives ammonium acetate, ammonium formate and ammonium bicarbonate. Seven PC standards were measured ranging from lyso 1-palmitoyl-sn-glycero-3-phosphocholine to 1,2-dieicosapentaenoyl-sn-glycero-3-phosphocholine as well as a mixture of PCs in a krill oil dietary supplement. RESULTS Under all conditions tested, aqueous acetonitrile provided more abundant formation of protonated PCs than did aqueous methanol. Regardless of the mobile phase composition and electrospray ion source parameters, no [M + NH4 ]+ ions were detected. Adding deuterated ammonium acetate to the mobile phase failed to form deuterated PCs, indicating that ammonium is not the source of the proton that neutralizes the phosphate negative charge. Instead, water was the source of the proton as deuterated water resulted in the formation of [M + D]+ ions. Addition of organic acids, ammonium formate, ammonium acetate, or ammonium bicarbonate to the mobile phase did not enhance and in most cases suppressed PC ionization. CONCLUSIONS Ammonium compounds and organic acids can suppress ionization of PCs when using an aqueous acetonitrile mobile phase during electrospray. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Michael D Rush
- Chicago Mass Spectrometry Laboratory, Department of Medicinal Chemistry and Pharmacognosy, University of Illinois College of Pharmacy, 833 South Wood St., Chicago, IL, 60612, USA
| | - Richard B van Breemen
- Chicago Mass Spectrometry Laboratory, Department of Medicinal Chemistry and Pharmacognosy, University of Illinois College of Pharmacy, 833 South Wood St., Chicago, IL, 60612, USA
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Determination of 2-alkylcyclobutanones in ultraviolet light-irradiated fatty acids, triglycerides, corn oil, and pork samples: Identifying a new source of 2-alkylcyclobutanones. Food Chem 2017; 217:352-359. [DOI: 10.1016/j.foodchem.2016.08.127] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/29/2016] [Accepted: 08/30/2016] [Indexed: 11/22/2022]
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41
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Lipoprotein profiling methodology based on determination of apolipoprotein concentration. Bioanalysis 2017; 9:9-19. [DOI: 10.4155/bio-2016-0234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Aim: Abnormal lipid metabolism results in the alteration of lipid compositions in lipoproteins; therefore an accurate and quantitative analytical approach is required for the detailed structural characterization of lipoproteins. However, the specific lipid composition of each lipoprotein particle is poorly understood. Materials & methods: Lipid composition of very-low-density lipoprotein and low-density lipoprotein particles derived from myocardial infarction-prone rabbits was determined by normalization of lipidomics data using apoB-100 levels. Results: The ratio of lipid levels between very-low-density lipoprotein and low-density lipoprotein particles was different according to not only lipid classes, but also phosphatidylethanolamine subclasses by applying our developed methodology to myocardial infarction-prone rabbits. Conclusion: Our novel analytical approach represents to be a potentially useful tool to obtain particle-specific lipid components of lipoproteins.
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42
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Sethi S, Brietzke E. Recent advances in lipidomics: Analytical and clinical perspectives. Prostaglandins Other Lipid Mediat 2017; 128-129:8-16. [DOI: 10.1016/j.prostaglandins.2016.12.002] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 12/22/2016] [Accepted: 12/22/2016] [Indexed: 10/20/2022]
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43
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Torretta E, Fania C, Vasso M, Gelfi C. HPTLC-MALDI MS for (glyco)sphingolipid multiplexing in tissues and blood: A promising strategy for biomarker discovery and clinical applications. Electrophoresis 2016; 37:2036-49. [DOI: 10.1002/elps.201600094] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 04/29/2016] [Accepted: 05/02/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Enrica Torretta
- Department of Biomedical Sciences for Health; University of Milan; Milan Italy
- IRCCS Policlinico San Donato; Piazza Edmondo Malan; San Donato Milanese Milan Italy
| | - Chiara Fania
- IRCCS Policlinico San Donato; Piazza Edmondo Malan; San Donato Milanese Milan Italy
| | - Michele Vasso
- Institute of Molecular Bioimaging and Physiology (IBFM); CNR Milan Italy
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health; University of Milan; Milan Italy
- IRCCS Policlinico San Donato; Piazza Edmondo Malan; San Donato Milanese Milan Italy
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Wolbachia Modulates Lipid Metabolism in Aedes albopictus Mosquito Cells. Appl Environ Microbiol 2016; 82:3109-3120. [PMID: 26994075 PMCID: PMC4959074 DOI: 10.1128/aem.00275-16] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/10/2016] [Indexed: 12/11/2022] Open
Abstract
Certain strains of the intracellular endosymbiont Wolbachia can strongly inhibit or block the transmission of viruses such as dengue virus (DENV) by Aedes mosquitoes, and the mechanisms responsible are still not well understood. Direct infusion and liquid chromatography-Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry-based lipidomics analyses were conducted using Aedes albopictus Aa23 cells that were infected with the wMel and wMelPop strains of Wolbachia in comparison to uninfected Aa23-T cells. Substantial shifts in the cellular lipid profile were apparent in the presence of Wolbachia. Most significantly, almost all sphingolipid classes were depleted, and some reductions in diacylglycerols and phosphatidylcholines were also observed. These lipid classes have previously been shown to be selectively enriched in DENV-infected mosquito cells, suggesting that Wolbachia may produce a cellular lipid environment that is antagonistic to viral replication. The data improve our understanding of the intracellular interactions between Wolbachia and mosquitoes. IMPORTANCE Mosquitoes transmit a variety of important viruses to humans, such as dengue virus and Zika virus. Certain strains of the intracellular bacterial genus called Wolbachia found in or introduced into mosquitoes can block the transmission of viruses, including dengue virus, but the mechanisms responsible are not well understood. We found substantial shifts in the cellular lipid profiles in the presence of these bacteria. Some lipid classes previously shown to be enriched in dengue virus-infected mosquito cells were depleted in the presence of Wolbachia, suggesting that Wolbachia may produce a cellular lipid environment that inhibits mosquito-borne viruses.
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Verma A, Ambatipudi K. Challenges and opportunities of bovine milk analysis by mass spectrometry. Clin Proteomics 2016; 13:8. [PMID: 27095950 PMCID: PMC4836106 DOI: 10.1186/s12014-016-9110-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 03/18/2016] [Indexed: 12/11/2022] Open
Abstract
Bovine milk and its products (e.g. cheese, yoghurt) are an important part of human diet with beneficial effects for all ages. Although analyses of different milk components (e.g. proteins, lipids) pose huge challenges, the use of mass spectrometric (MS)-based techniques is steadily improving our understanding of the complexity of the biological traits that effect milk yield and its components to meet the global demand arising from population growth. In addition, different milk constituents have various applications in veterinary research and medicine, including early disease diagnosis. The aim of the review is to present an overview of the progress made in MS-based analysis of milk, and suggest a multi-pronged MS strategy to better explore different milk components for translational and clinical utilities.
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Affiliation(s)
- Aparna Verma
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667 India
| | - Kiran Ambatipudi
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667 India
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Moore EK, Hopmans EC, Rijpstra WIC, Villanueva L, Damsté JSS. Elucidation and identification of amino acid containing membrane lipids using liquid chromatography/high-resolution mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30:739-750. [PMID: 27281845 DOI: 10.1002/rcm.7503] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
RATIONALE Intact polar lipids (IPLs) are the building blocks of cell membranes, and amino acid containing IPLs have been observed to be involved in response to changing environmental conditions in various species of bacteria. High-performance liquid chromatography/mass spectrometry (HPLC/MS) has become the primary method for analysis of IPLs. Many glycerol-free amino acid containing membrane lipids (AA-IPLs), which are structurally different than abundant aminophospholipids, have not been characterized using HPLC/MS. This results in many lipids remaining unrecognized in IPL analysis of microbial cultures and environmental samples, hampering the study of their occurrence and functionality. METHODS We analyzed the amino acid containing IPLs of a number of bacteria (i.e. Gluconobacter cerinus, Cyclobacterium marinus, Rhodobacter sphaeroides, and Pedobacter heparinus) in order to decipher fragmentation pathways, and explore potential novel lipid structures using HPLC/electrospray ionization ion trap MS (HPLC/ESI-IT-MS) and HPLC/high-resolution MS (HPLC/HRMS). RESULTS We report differentiation between glutamine and lysine lipids with the same nominal masses, novel MS fragmentation pathways of cytolipin, the lipopeptides cerilipin and flavolipin, head group hydroxylated ornithine lipids, and the novel identification of cerilipin with a hydroxylated fatty acid. CONCLUSIONS Non-glycerol AA lipids can be readily recognized as their fragmentation follows a clear pattern with initial dehydration or other loss from the head group, followed by fatty acid losses resulting in a diagnostic fragment ion. Higher level MSn and HRMS are valuable tools in characterizing AA lipid head group structural components.
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Bioprospecting of Marine Macrophytes Using MS-Based Lipidomics as a New Approach. Mar Drugs 2016; 14:md14030049. [PMID: 27005634 PMCID: PMC4820303 DOI: 10.3390/md14030049] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/25/2016] [Accepted: 03/02/2016] [Indexed: 11/17/2022] Open
Abstract
The marine environment supports a remarkable diversity of organisms which are a potential source of natural products with biological activities. These organisms include a wide variety of marine plants (from micro- to macrophytes), which have been used in the food and pharmaceutical industry. However, the biochemistry and biological activities of many of these macrophytes (namely macroalgae and halophytes, including seagrasses) are still far from being fully explored. Most popular bioactive components include polysaccharides, peptides, phenolics and fatty acids (FAs). Polar lipids (glycolipids, phospholipids and betaine lipids) are emerging as novel value-added bioactive phytochemicals, rich in n-3 FA, with high nutritional value and health beneficial effects for the prevention of chronic diseases. Polar lipids account various combinations of polar groups, fatty acyl chains and backbone structures. The polar lipidome of macrophytes is remarkably diverse, and its screening represents a significant analytical challenge. Modern research platforms, particularly mass spectrometry (MS)-based lipidomic approaches, have been recently used to address this challenge and are here reviewed. The application of lipidomics to address lipid composition of marine macrophytes will contribute to the stimulation of further research on this group and foster the exploration of novel applications.
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Panchal S, Asati A, Satyanarayana GNV, Raghav A, Ahmad J, Patel DK. Ionic liquid based microextraction of targeted lipids from serum using UPLC-MS/MS with a chemometric approach: a pilot study. RSC Adv 2016. [DOI: 10.1039/c6ra17408f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An ionic liquid based vortex assisted surfactant-enhanced emulsification microextraction method followed by using liquid chromatography-electrospray mass spectrometry have been used for the determination of fatty acids, triglycerides and phospholipids in serum samples.
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Affiliation(s)
- Smita Panchal
- Academy of Scientific & Innovative Research (AcSIR)
- CSIR-IITR Campus
- Lucknow
- India
- Analytical Chemistry Laboratory
| | - Ankita Asati
- Academy of Scientific & Innovative Research (AcSIR)
- CSIR-IITR Campus
- Lucknow
- India
- Analytical Chemistry Laboratory
| | - G. N. V. Satyanarayana
- Analytical Chemistry Laboratory
- Regulatory Toxicology Group
- CSIR-Indian Institute of Toxicology Research
- Lucknow-226001
- India
| | - Alok Raghav
- Rajiv Gandhi Centre for Diabetes & Endocrinology
- Faculty of Medicine
- J. N. Medical College
- Aligarh Muslim University
- Aligarh
| | - Jamal Ahmad
- Rajiv Gandhi Centre for Diabetes & Endocrinology
- Faculty of Medicine
- J. N. Medical College
- Aligarh Muslim University
- Aligarh
| | - Devendra K. Patel
- Academy of Scientific & Innovative Research (AcSIR)
- CSIR-IITR Campus
- Lucknow
- India
- Analytical Chemistry Laboratory
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Profiling and relative quantification of phosphatidylethanolamine based on acetone stable isotope derivatization. Anal Chim Acta 2016; 902:142-153. [DOI: 10.1016/j.aca.2015.11.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 10/15/2015] [Accepted: 11/02/2015] [Indexed: 12/15/2022]
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50
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PPARα Is Required for PPARδ Action in Regulation of Body Weight and Hepatic Steatosis in Mice. PPAR Res 2015; 2015:927057. [PMID: 26604919 PMCID: PMC4641930 DOI: 10.1155/2015/927057] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 09/09/2015] [Indexed: 12/24/2022] Open
Abstract
Peroxisome proliferator activated receptors alpha (PPARα) and delta (PPARδ) belong to the nuclear receptor superfamily. PPARα is a target of well established lipid-lowering drugs. PPARδ (also known as PPARβ/δ) has been investigated as a promising antidiabetic drug target; however, the evidence in the literature on PPARδ effect on hepatic lipid metabolism is inconsistent. Mice conditionally expressing human PPARδ demonstrated pronounced weight loss and promoted hepatic steatosis when treated with GW501516 (PPARδ-agonist) when compared to wild type mice. This effect was completely absent in mice with either a dominant negative form of PPARδ or deletion of the DNA binding domain of PPARδ. This confirmed the absolute requirement for PPARδ in the physiological actions of GW501516 and confirmed the potential utility against the human form of this receptor. Surprisingly the genetic deletion of PPARα also abrogated the effect of GW501516 in terms of both weight loss and hepatic lipid accumulation. Also the levels of the PPARα endogenous agonist 16:0/18:1-GPC were shown to be modulated by PPARδ in wild type mice. Our results show that both PPARδ and PPARα receptors are essential for GW501516-driven adipose tissue reduction and subsequently hepatic steatosis, with PPARα working downstream of PPARδ.
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