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Hoffmann M, Haselberger D, Hofmann T, Müller L, Janson K, Meister A, Das M, Vargas C, Keller S, Kastritis PL, Schmidt C, Hinderberger D. Nanoscale Model System for the Human Myelin Sheath. Biomacromolecules 2021; 22:3901-3912. [PMID: 34324309 DOI: 10.1021/acs.biomac.1c00714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Neurodegenerative disorders are among the most common diseases in modern society. However, the molecular bases of diseases such as multiple sclerosis or Charcot-Marie-Tooth disease remain far from being fully understood. Research in this field is limited by the complex nature of native myelin and by difficulties in obtaining good in vitro model systems of myelin. Here, we introduce an easy-to-use model system of the myelin sheath that can be used to study myelin proteins in a native-like yet well-controlled environment. To this end, we present myelin-mimicking nanodiscs prepared through one of the amphiphilic copolymers styrene/maleic acid (SMA), diisobutylene/maleic acid (DIBMA), and styrene/maleimide sulfobetaine (SMA-SB). These nanodiscs were tested for their lipid composition using chromatographic (HPLC) and mass spectrometric (MS) methods and, utilizing spin probes within the nanodisc, their comparability with liposomes was studied. In addition, their binding behavior with bovine myelin basic protein (MBP) was scrutinized to ensure that the nanodiscs represent a suitable model system of myelin. Our results suggest that both SMA and SMA-SB are able to solubilize the myelin-like (cytoplasmic) liposomes without preferences for specific lipid headgroups or fatty acyl chains. In nanodiscs of both SMA and SMA-SB (called SMA(-SB)-lipid particles, short SMALPs or SMA-SBLPs, respectively), the polymers restrict the lipids' motion in the hydrophobic center of the bilayer. The headgroups of the lipids, however, are sterically less hindered in nanodiscs when compared with liposomes. Myelin-like SMALPs are able to bind bovine MBP, which can stack the lipid bilayers like in native myelin, showing the usability of these simple, well-controlled systems in further studies of protein-lipid interactions of native myelin.
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Affiliation(s)
- Matthias Hoffmann
- Interdisciplinary Research Center HALOmem, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany.,Institute of Chemistry, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - David Haselberger
- Interdisciplinary Research Center HALOmem, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany.,Institute of Chemistry, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Tommy Hofmann
- Interdisciplinary Research Center HALOmem, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany.,Institute of Biochemistry and Biotechnology, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany
| | - Lisa Müller
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle (Saale), Germany
| | - Kevin Janson
- Interdisciplinary Research Center HALOmem, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany.,Institute of Biochemistry and Biotechnology, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany
| | - Annette Meister
- Interdisciplinary Research Center HALOmem, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany.,Institute of Biochemistry and Biotechnology, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany
| | - Manabendra Das
- Molecular Biophysics, Technische Universität Kaiserslautern (TUK), Erwin-Schrödinger-Straße 13, 67663 Kaiserslautern, Germany
| | - Carolyn Vargas
- Molecular Biophysics, Technische Universität Kaiserslautern (TUK), Erwin-Schrödinger-Straße 13, 67663 Kaiserslautern, Germany.,Biophysics, Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstraße 50/III, 8010 Graz, Austria.,Field of Excellence BioHealth, University of Graz, 8010 Graz, Austria.,BioTechMed-Graz, 8010 Graz, Austria
| | - Sandro Keller
- Molecular Biophysics, Technische Universität Kaiserslautern (TUK), Erwin-Schrödinger-Straße 13, 67663 Kaiserslautern, Germany.,Biophysics, Institute of Molecular Biosciences (IMB), NAWI Graz, University of Graz, Humboldtstraße 50/III, 8010 Graz, Austria.,Field of Excellence BioHealth, University of Graz, 8010 Graz, Austria.,BioTechMed-Graz, 8010 Graz, Austria
| | - Panagiotis L Kastritis
- Interdisciplinary Research Center HALOmem, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany.,Institute of Biochemistry and Biotechnology, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany
| | - Carla Schmidt
- Interdisciplinary Research Center HALOmem, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany.,Institute of Biochemistry and Biotechnology, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany
| | - Dariush Hinderberger
- Interdisciplinary Research Center HALOmem, Martin Luther University (MLU) Halle-Wittenberg, Charles Tanford Protein Center, Kurt-Mothes-Straße 3a, 06120 Halle (Saale), Germany.,Institute of Chemistry, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
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Gaillard D, Masson D, Garo E, Souidi M, Pais de Barros JP, Schoonjans K, Grober J, Besnard P, Thomas C. Muricholic Acids Promote Resistance to Hypercholesterolemia in Cholesterol-Fed Mice. Int J Mol Sci 2021; 22:7163. [PMID: 34281217 PMCID: PMC8269105 DOI: 10.3390/ijms22137163] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND AIMS Hypercholesterolemia is a major risk factor for atherosclerosis and cardiovascular diseases. Although resistant to hypercholesterolemia, the mouse is a prominent model in cardiovascular research. To assess the contribution of bile acids to this protective phenotype, we explored the impact of a 2-week-long dietary cholesterol overload on cholesterol and bile acid metabolism in mice. METHODS Bile acid, oxysterol, and cholesterol metabolism and transport were assessed by quantitative real-time PCR, western blotting, GC-MS/MS, or enzymatic assays in the liver, the gut, the kidney, as well as in the feces, the blood, and the urine. RESULTS Plasma triglycerides and cholesterol levels were unchanged in mice fed a cholesterol-rich diet that contained 100-fold more cholesterol than the standard diet. In the liver, oxysterol-mediated LXR activation stimulated the synthesis of bile acids and in particular increased the levels of hydrophilic muricholic acids, which in turn reduced FXR signaling, as assessed in vivo with Fxr reporter mice. Consequently, biliary and basolateral excretions of bile acids and cholesterol were increased, whereas portal uptake was reduced. Furthermore, we observed a reduction in intestinal and renal bile acid absorption. CONCLUSIONS These coordinated events are mediated by increased muricholic acid levels which inhibit FXR signaling in favor of LXR and SREBP2 signaling to promote efficient fecal and urinary elimination of cholesterol and neo-synthesized bile acids. Therefore, our data suggest that enhancement of the hydrophilic bile acid pool following a cholesterol overload may contribute to the resistance to hypercholesterolemia in mice. This work paves the way for new therapeutic opportunities using hydrophilic bile acid supplementation to mitigate hypercholesterolemia.
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Affiliation(s)
- Dany Gaillard
- Center for Translational Medicine, UMR1231 INSERM-uB-AgroSupDijon, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France; (D.G.); (D.M.); (J.-P.P.d.B.); (J.G.)
- Department of Cell & Developmental Biology, and The Rocky Mountain Taste & Smell Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - David Masson
- Center for Translational Medicine, UMR1231 INSERM-uB-AgroSupDijon, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France; (D.G.); (D.M.); (J.-P.P.d.B.); (J.G.)
- LipSTIC LabEx, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France
- Biochemistry Department, University Hospital François Mitterrand, 21000 Dijon, France
| | - Erwan Garo
- IGBMC, CNRS UMR 7104, INSERM U 1258, 67400 Illkirch, France;
| | - Maamar Souidi
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), 92260 Fontenay-aux-Roses, France;
| | - Jean-Paul Pais de Barros
- Center for Translational Medicine, UMR1231 INSERM-uB-AgroSupDijon, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France; (D.G.); (D.M.); (J.-P.P.d.B.); (J.G.)
- LipSTIC LabEx, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France
- Lipidomic Facility, Université de Bourgogne Franche-Comté (UBFC), 21078 Dijon, France
| | - Kristina Schoonjans
- Institute of Bioengineering, Life Science Faculty, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland;
| | - Jacques Grober
- Center for Translational Medicine, UMR1231 INSERM-uB-AgroSupDijon, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France; (D.G.); (D.M.); (J.-P.P.d.B.); (J.G.)
- LipSTIC LabEx, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France
| | - Philippe Besnard
- Center for Translational Medicine, UMR1231 INSERM-uB-AgroSupDijon, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France; (D.G.); (D.M.); (J.-P.P.d.B.); (J.G.)
- LipSTIC LabEx, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France
- Physiologie de la Nutrition, AgroSup Dijon, 21000 Dijon, France
| | - Charles Thomas
- Center for Translational Medicine, UMR1231 INSERM-uB-AgroSupDijon, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France; (D.G.); (D.M.); (J.-P.P.d.B.); (J.G.)
- LipSTIC LabEx, Université de Bourgogne Franche-Comté (UBFC), 21000 Dijon, France
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Le Barz M, Vors C, Combe E, Joumard-Cubizolles L, Lecomte M, Joffre F, Trauchessec M, Pesenti S, Loizon E, Breyton AE, Meugnier E, Bertrand K, Drai J, Robert C, Durand A, Cuerq C, Gaborit P, Leconte N, Bernalier-Donadille A, Cotte E, Laville M, Lambert-Porcheron S, Ouchchane L, Vidal H, Malpuech-Brugère C, Cheillan D, Michalski MC. Milk polar lipids favorably alter circulating and intestinal ceramide and sphingomyelin species in postmenopausal women. JCI Insight 2021; 6:146161. [PMID: 33857018 PMCID: PMC8262315 DOI: 10.1172/jci.insight.146161] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 04/09/2021] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND High circulating levels of ceramides (Cer) and sphingomyelins (SM) are associated with cardiometabolic diseases. The consumption of whole fat dairy products, naturally containing such polar lipids (PL), is associated with health benefits, but the impact on sphingolipidome remains unknown. METHODS In a 4-week randomized controlled trial, 58 postmenopausal women daily consumed milk PL-enriched cream cheese (0, 3, or 5 g of milk PL). Postprandial metabolic explorations were performed before and after supplementation. Analyses included SM and Cer species in serum, chylomicrons, and feces. The ileal contents of 4 ileostomy patients were also explored after acute milk PL intake. RESULTS Milk PL decreased serum atherogenic C24:1 Cer, C16:1 SM, and C18:1 SM species (Pgroup < 0.05). Changes in serum C16+18 SM species were positively correlated with the reduction of cholesterol (r = 0.706), LDL-C (r = 0.666), and ApoB (r = 0.705) (P < 0.001). Milk PL decreased chylomicron content in total SM and C24:1 Cer (Pgroup < 0.001), parallel to a marked increase in total Cer in feces (Pgroup < 0.001). Milk PL modulated some specific SM and Cer species in both ileal efflux and feces, suggesting differential absorption and metabolization processes in the gut. CONCLUSION Milk PL supplementation decreased atherogenic SM and Cer species associated with the improvement of cardiovascular risk markers. Our findings bring insights on sphingolipid metabolism in the gut, especially Cer, as signaling molecules potentially participating in the beneficial effects of milk PL. TRIAL REGISTRATION ClinicalTrials.gov, NCT02099032, NCT02146339. FUNDING ANR-11-ALID-007-01; PHRCI-2014: VALOBAB, no. 14-007; CNIEL; GLN 2018-11-07; HCL (sponsor).
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Affiliation(s)
- Mélanie Le Barz
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France
| | - Cécile Vors
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,TCentre de Recherche en Nutrition Humaine Rhône-Alpes, Univ-Lyon, CarMeN Laboratory, Université Claude Bernard Lyon1, Hospices Civils de Lyon, CENS, FCRIN/FORCE Network, 69310, Pierre-Bénite, France
| | - Emmanuel Combe
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France
| | - Laurie Joumard-Cubizolles
- Université Clermont Auvergne, INRAE, UNH, Unité de Nutrition Humaine, CRNH Auvergne, 63000, Clermont-Ferrand, France
| | - Manon Lecomte
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,TCentre de Recherche en Nutrition Humaine Rhône-Alpes, Univ-Lyon, CarMeN Laboratory, Université Claude Bernard Lyon1, Hospices Civils de Lyon, CENS, FCRIN/FORCE Network, 69310, Pierre-Bénite, France
| | - Florent Joffre
- ITERG, ZA Pessac-Canéjan, 11 Rue Gaspard Monge, 33610, Canéjan, France
| | - Michèle Trauchessec
- Hospices Civils de Lyon, 69000, Lyon, France.,Unité Maladies Héréditaires du Métabolisme, Service de Biochimie et Biologie Moléculaire Grand Est, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, 69677, Bron, France
| | - Sandra Pesenti
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France
| | - Emmanuelle Loizon
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France
| | - Anne-Esther Breyton
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,TCentre de Recherche en Nutrition Humaine Rhône-Alpes, Univ-Lyon, CarMeN Laboratory, Université Claude Bernard Lyon1, Hospices Civils de Lyon, CENS, FCRIN/FORCE Network, 69310, Pierre-Bénite, France
| | - Emmanuelle Meugnier
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France
| | - Karène Bertrand
- ITERG, ZA Pessac-Canéjan, 11 Rue Gaspard Monge, 33610, Canéjan, France
| | - Jocelyne Drai
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,Hospices Civils de Lyon, 69000, Lyon, France.,Unité de Nutrition Endocrinologie Métabolisme, Service de Biochimie, Centre de Biologie et de Pathologie Sud, Hospices Civils de Lyon, 69495, Pierre-Bénite, France
| | - Chloé Robert
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,TCentre de Recherche en Nutrition Humaine Rhône-Alpes, Univ-Lyon, CarMeN Laboratory, Université Claude Bernard Lyon1, Hospices Civils de Lyon, CENS, FCRIN/FORCE Network, 69310, Pierre-Bénite, France
| | - Annie Durand
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France
| | - Charlotte Cuerq
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,Hospices Civils de Lyon, 69000, Lyon, France.,Unité de Nutrition Endocrinologie Métabolisme, Service de Biochimie, Centre de Biologie et de Pathologie Sud, Hospices Civils de Lyon, 69495, Pierre-Bénite, France
| | - Patrice Gaborit
- ACTALIA Dairy Products and Technologies, Avenue François Mitterrand, BP49, 17700, Surgères, France.,ENILIA ENSMIC, Avenue François Mitterrand, 17700, Surgères, France
| | - Nadine Leconte
- INRAE, Institut Agro, STLO (Science et Technologie du Lait et de l'Œuf), 35042, Rennes, France
| | | | - Eddy Cotte
- Hospices Civils de Lyon, 69000, Lyon, France.,Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Service de chirurgie digestive, 69310, Pierre-Bénite, France.,Université Claude Bernard Lyon 1, Faculté de médecine Lyon-Sud-Charles Mérieux, EMR 3738, 69600, Oullins, France
| | - Martine Laville
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,TCentre de Recherche en Nutrition Humaine Rhône-Alpes, Univ-Lyon, CarMeN Laboratory, Université Claude Bernard Lyon1, Hospices Civils de Lyon, CENS, FCRIN/FORCE Network, 69310, Pierre-Bénite, France.,Hospices Civils de Lyon, 69000, Lyon, France.,Université Claude Bernard Lyon 1, Faculté de médecine Lyon-Sud-Charles Mérieux, EMR 3738, 69600, Oullins, France
| | - Stéphanie Lambert-Porcheron
- TCentre de Recherche en Nutrition Humaine Rhône-Alpes, Univ-Lyon, CarMeN Laboratory, Université Claude Bernard Lyon1, Hospices Civils de Lyon, CENS, FCRIN/FORCE Network, 69310, Pierre-Bénite, France.,Hospices Civils de Lyon, 69000, Lyon, France
| | - Lemlih Ouchchane
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, 63000, Clermont-Ferrand, France.,CHU Clermont-Ferrand, Unité de Biostatistique-Informatique Médicale, 63000, Clermont-Ferrand, France
| | - Hubert Vidal
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France
| | - Corinne Malpuech-Brugère
- Université Clermont Auvergne, INRAE, UNH, Unité de Nutrition Humaine, CRNH Auvergne, 63000, Clermont-Ferrand, France
| | - David Cheillan
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,Hospices Civils de Lyon, 69000, Lyon, France.,Unité Maladies Héréditaires du Métabolisme, Service de Biochimie et Biologie Moléculaire Grand Est, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, 69677, Bron, France
| | - Marie-Caroline Michalski
- Univ Lyon, CarMeN laboratory, INSERM, INRAE, INSA Lyon, Université Claude Bernard Lyon 1, Charles Mérieux Medical School, 69310, Pierre-Bénite, France.,TCentre de Recherche en Nutrition Humaine Rhône-Alpes, Univ-Lyon, CarMeN Laboratory, Université Claude Bernard Lyon1, Hospices Civils de Lyon, CENS, FCRIN/FORCE Network, 69310, Pierre-Bénite, France
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Liu G, Hou S, Tong P, Li J. Liposomes: Preparation, Characteristics, and Application Strategies in Analytical Chemistry. Crit Rev Anal Chem 2020; 52:392-412. [DOI: 10.1080/10408347.2020.1805293] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Guangyan Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Shili Hou
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Peihong Tong
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Jianping Li
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
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de Magalhães Benedetti NIG, Costa Veloso DFM, Nascimento TL, Almeida Diniz DG, Maione-Silva L, Lima EM. A Reliable HPLC-ELSD Method for Determination of Cholesterol, Phosphatidylcholine, Lysophosphatidylcholine Content and the Stability of a Liposomal Formulation. CURR PHARM ANAL 2020. [DOI: 10.2174/1573412915666190618092211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:Liposomes continue to play an important role in drug delivery research due to their ability to improve transport and targeting of a wide range of active molecules. Analysis of liposomal components is a key point in the characterization and evaluation of formulation stability. The aim of this work was to develop and validate an HPLC-ELSD method for the characterization and quality control of liposomes.Methods:HPLC-ELSD method was validated by assessing selectivity, linearity, precision, accuracy, limit of detection and quantitation. The mobile phase consisted of a 0.1% (v/v) of trifluoroacetic acid (TFA) and methanol in gradient elution. Initial rate was 20:80 (0.1% TFA: methanol), with a ramp reaching 100% methanol. HPLC-MS/MS was used to confirm the presence of the fatty acid mixture in the analyzed lipids, as well as sub-products generated under pre-determined conditions in the stability study.Results:A HPLC-ELSD method has been developed to detect and measure cholesterol, phosphatidylcholine and lysophosphatidylcholine. High specificity, sensitivity and linearity within the predetermined range for all the compounds analyzed (R2>0.99) were obtained. Accuracy and precision results for all the compounds were within the acceptance limit of ≤5% and 90-110%, respectively. Mass spectrometry results showed complementary information about the phospholipid composition to evaluate the degree of degradation of liposomes over different storage conditions.Conclusion:The method was successfully applied as a quality control tool for the analysis of a wide range of lipids, present in liposomal formulations. HPLC-MS/MS was used to ensure complete elucidation of the lipid components and the detected lyso-forms.
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Affiliation(s)
- Naiara Ieza Gallo de Magalhães Benedetti
- Laboratorio de Nanotecnologia Farmaceutica e Sistemas de Liberacao de Farmacos, Faculdade de Farmacia, Universidade Federal de Goias - UFG, Goiania, Goias, Brazil
| | - Danillo Fabrini Maciel Costa Veloso
- Laboratorio de Nanotecnologia Farmaceutica e Sistemas de Liberacao de Farmacos, Faculdade de Farmacia, Universidade Federal de Goias - UFG, Goiania, Goias, Brazil
| | - Thais Leite Nascimento
- Laboratorio de Nanotecnologia Farmaceutica e Sistemas de Liberacao de Farmacos, Faculdade de Farmacia, Universidade Federal de Goias - UFG, Goiania, Goias, Brazil
| | - Danielle Guimarães Almeida Diniz
- Laboratorio de Nanotecnologia Farmaceutica e Sistemas de Liberacao de Farmacos, Faculdade de Farmacia, Universidade Federal de Goias - UFG, Goiania, Goias, Brazil
| | - Lorena Maione-Silva
- Laboratorio de Nanotecnologia Farmaceutica e Sistemas de Liberacao de Farmacos, Faculdade de Farmacia, Universidade Federal de Goias - UFG, Goiania, Goias, Brazil
| | - Eliana Martins Lima
- Laboratorio de Nanotecnologia Farmaceutica e Sistemas de Liberacao de Farmacos, Faculdade de Farmacia, Universidade Federal de Goias - UFG, Goiania, Goias, Brazil
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Beheshti A, Ghaffari S, Farahani H. Determination of Cholesterol and its Derivatives in Nanoliposomes as Drug Delivery Conveyances by HPLC-UV: A Simple, Accurate and Cost-Effective Method Development and Validation Approach. J Chromatogr Sci 2019; 57:469-475. [PMID: 30926982 DOI: 10.1093/chromsci/bmz021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 02/18/2019] [Accepted: 03/09/2019] [Indexed: 11/12/2022]
Abstract
Nanoliposomes are extensively used as ideal vehicles in drug delivery systems due to their unique biocompatibility and biodegradability properties. They can be used as sustained release and target selective conveyances to deliver the encapsulated drugs at specific cells or tissues by improving their efficacy along with reducing the side effects. As an analytical perspective, the determination of various lipid components in the final formulation is one of the practical issues while the agents are applied in an industrial-scale. Herein, the maximum ultra violet (UV) absorbances for the most of the lipids are within 200-210 nm that cause significant cut-off conflicts with the general solvents or additives of high-performance liquid chromatography (HPLC) during its method development procedure. In this study, a simple, accurate and cost-effective isocratic HPLC-UV method has been successfully developed for the simultaneous determination of α-(3-O-cholesteryloxy)-δ-(N-ethylmorpholine)-succineamide (MoChol), cholesteryl-hemisuccinate (Chems) and Cholesterol in nanoliposomes drug carriers containing an active pharmaceutical ingredient (anti-BCL-2 DNA oligonucleotide). The isocratic mobile phase consisted of ethanol/acetonitrile/water including trifluoroacetic acid (60/30/10 with 0.1% v/v, respectively) at a flow rate of 1.0 mL min-1 was run through a commercial reverse-phase C18 analytical column while UV detector was set at 202 nm. To confirm the applicability, a full validation of the proposed method was performed according to the International Council for Harmonization (ICH) guidelines.
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Affiliation(s)
- Abolghasem Beheshti
- Department of Chemistry, Payame Noor University, Tehran, Iran.,Research and Development Department, Quality Control Labs, Tofigh Daru Research and Engineering Co, Tehran, Iran
| | - Solmaz Ghaffari
- Research and Development Department, Quality Control Labs, Tofigh Daru Research and Engineering Co, Tehran, Iran.,Young Researchers and Elite Club, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.,Department of Medical Nanotechnology, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.,Pharmaceutical Science Research Center, Pharmaceutical Science Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Hadi Farahani
- Research Institute of Petroleum Industry (RIPI), Tehran, Iran
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7
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Novel analytical methods to assess the chemical and physical properties of liposomes. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1091:14-20. [DOI: 10.1016/j.jchromb.2018.05.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/10/2018] [Accepted: 05/18/2018] [Indexed: 11/21/2022]
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8
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Rey C, Nadjar A, Joffre F, Amadieu C, Aubert A, Vaysse C, Pallet V, Layé S, Joffre C. Maternal n-3 polyunsaturated fatty acid dietary supply modulates microglia lipid content in the offspring. Prostaglandins Leukot Essent Fatty Acids 2018; 133:1-7. [PMID: 29789127 DOI: 10.1016/j.plefa.2018.04.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/20/2018] [Accepted: 04/20/2018] [Indexed: 12/12/2022]
Abstract
The brain is highly enriched in long chain polyunsaturated fatty acids (LC-PUFAs) that are esterified into phospholipids, the major components of cell membranes. They accumulate during the perinatal period when the brain is rapidly developing. Hence, the levels of LC-PUFAs in the brains of the offspring greatly depend on maternal dietary intake. Perinatal n-3 PUFA consumption has been suggested to modulate the activity of microglial cells, the brain's innate immune cells which contribute to the shaping of neuronal network during development. However, the impact of maternal n-3 PUFA intake on microglial lipid composition in the offspring has never been studied. To investigate the impact of maternal dietary n-3 PUFA supply on microglia lipid composition, pregnant mice were fed with n-3 PUFA deficient, n-3 PUFA balanced or n-3 PUFA supplemented diets during gestation and lactation. At weaning, microglia were isolated from the pup's brains to analyze their fatty acid composition and phospholipid class levels. We here report that post-natal microglial cells displayed a distinctive lipid profile as they contained high levels of eicosapentaenoic acid (EPA), more EPA than docosahexaenoic acid (DHA) and large amount of phosphatidylinositol (PI) / phosphatidylserine (PS). Maternal n-3 PUFA supply increased DHA levels and decreased n-6 docosapentaenoic acid (DPA) levels whereas the PI/PS membrane content was inversely correlated to the quantity of PUFAs in the diet. These results raise the possibility of modulating microglial lipid profile and their subsequent activity in the developing brain.
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Affiliation(s)
- Charlotte Rey
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France; Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France; ITERG, Institut des corps gras, Canéjan 33610, France
| | - Agnès Nadjar
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France; Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France
| | | | - Camille Amadieu
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France; Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France
| | - Agnès Aubert
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France; Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France
| | - Carole Vaysse
- ITERG, Institut des corps gras, Canéjan 33610, France
| | - Véronique Pallet
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France; Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France
| | - Sophie Layé
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France; Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France
| | - Corinne Joffre
- INRA, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France; Bordeaux University, Nutrition et Neurobiologie Intégrée, UMR 1286, Bordeaux 33076, France.
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9
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Tan Z, Khakbaz P, Chen Y, Lombardo J, Yoon JM, Shanks JV, Klauda JB, Jarboe LR. Engineering Escherichia coli membrane phospholipid head distribution improves tolerance and production of biorenewables. Metab Eng 2017; 44:1-12. [DOI: 10.1016/j.ymben.2017.08.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/26/2017] [Accepted: 08/29/2017] [Indexed: 12/27/2022]
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10
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Damage to the microbial cell membrane during pyrolytic sugar utilization and strategies for increasing resistance. ACTA ACUST UNITED AC 2017; 44:1279-1292. [DOI: 10.1007/s10295-017-1958-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/20/2017] [Indexed: 11/25/2022]
Abstract
Abstract
Lignocellulosic biomass is an appealing feedstock for the production of biorenewable fuels and chemicals, and thermochemical processing is a promising method for depolymerizing it into sugars. However, trace compounds in this pyrolytic sugar syrup are inhibitory to microbial biocatalysts. This study demonstrates that hydrophobic inhibitors damage the cell membrane of ethanologenic Escherichia coli KO11+lgk. Adaptive evolution was employed to identify design strategies for improving pyrolytic sugar tolerance and utilization. Characterization of the resulting evolved strain indicates that increased resistance to the membrane-damaging effects of the pyrolytic sugars can be attributed to a glutamine to leucine mutation at position 29 of carbon storage regulator CsrA. This single amino acid change is sufficient for decreasing EPS protein production and increasing membrane integrity when exposed to pyrolytic sugars.
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11
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12
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Trupia S, Winkler-Moser JK, Guney AC, Beckstead R, Chen CYO. Nutritional quality of eggs from hens fed distillers dried grains with solubles. Poult Sci 2016; 95:2592-2601. [PMID: 27118865 DOI: 10.3382/ps/pew142] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2016] [Indexed: 12/20/2022] Open
Abstract
A feeding trial was conducted with laying hens where either 10% or 20% regular-fat distiller's dried grains with solubles (R-DDGS) or low-fat DDGS (L-DDGS) were incorporated into the feed. Production parameters and the effect of DDGS on egg nutritional quality, focusing on yolk lipids, were evaluated. Neither R-DDGS nor L-DDGS at up to 20% of laying hen feeds had a statistically significant impact on hen weight gain, egg production, feed intake, feed efficiency, egg mass, or egg weight. Specific gravity was slightly lower for eggs from hens fed 10% R-DDGS or 20% L-DDGS. Eggs from layers fed DDGS had enhanced levels of tocopherols, tocotrienols, and xanthophylls in the yolk, as well as also increased yolk yellow and red color. Eggs from L-DDGS diet had higher tocopherol content, but eggs from R-DDGS diets had higher xanthophylls. Fatty acid composition in eggs was slightly altered by DDGS, but the ratio of saturated to unsaturated fatty acids was very similar. Feeding DDGS to layer hens had no effect on lecithin or cholesterol content of the eggs. Thus, inclusion of DDGS in the diet of laying hens resulted in increases of several beneficial lipophilic nutrients in egg yolks with no apparent detrimental effects.
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Affiliation(s)
- S Trupia
- National Corn-to-Ethanol Research Center, Southern Illinois University at Edwardsville, 400 University Park Dr., Edwardsville, IL
| | - J K Winkler-Moser
- U.S. Department of Agriculture, Agricultural Research Service, NCAUR, Functional Foods Research Unit, Peoria, IL
| | - A C Guney
- University of Georgia, Poultry Science Department, Athens Georgia
| | - R Beckstead
- University of Georgia, Poultry Science Department, Athens Georgia
| | - C-Y O Chen
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Medford, MA
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13
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Sankella S, Garg A, Horton JD, Agarwal AK. Hepatic gluconeogenesis is enhanced by phosphatidic acid which remains uninhibited by insulin in lipodystrophic Agpat2-/- mice. J Biol Chem 2014; 289:4762-77. [PMID: 24425876 DOI: 10.1074/jbc.m113.530998] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In this study we examined the role of phosphatidic acid (PA) in hepatic glucose production (HGP) and development of hepatic insulin resistance in mice that lack 1-acylglycerol-3-phosphate O-acyltransferase 2 (AGPAT2). Liver lysophosphatidic acid and PA levels were increased ∼2- and ∼5-fold, respectively, in male Agpat2(-/-) mice compared with wild type mice. In the absence of AGPAT2, the liver can synthesize PAs by activating diacylglycerol kinase or phospholipase D, both of which were elevated in the livers of Agpat2(-/-) mice. We found that PAs C16:0/18:1 and C18:1/20:4 enhanced HGP in primary WT hepatocytes, an effect that was further enhanced in primary hepatocytes from Agpat2(-/-) mice. Lysophosphatidic acids C16:0 and C18:1 failed to increase HGP in primary hepatocytes. The activation of HGP was accompanied by an up-regulation of the key gluconeogenic enzymes glucose-6-phosphatase and phosphoenolpyruvate carboxykinase. This activation was suppressed by insulin in the WT primary hepatocytes but not in the Agpat2(-/-) primary hepatocytes. Thus, the lack of normal insulin signaling in Agpat2(-/-) livers allows unrestricted PA-induced gluconeogenesis significantly contributing to the development of hyperglycemia in these mice.
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Affiliation(s)
- Shireesha Sankella
- From the Division of Nutrition and Metabolic Diseases, Department of Internal Medicine and Center for Human Nutrition
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14
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de Oliveira DN, Siqueira M, Sartor S, Catharino R. Direct analysis of lipsticks by Sorptive tape-like extraction laser desorption/ionization mass spectrometry imaging. Int J Cosmet Sci 2013; 35:467-71. [DOI: 10.1111/ics.12066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 05/02/2013] [Indexed: 11/26/2022]
Affiliation(s)
- D. N. de Oliveira
- INNOVARE Biomarkers Laboratory; School of Medical Sciences; University of Campinas; Campinas; Brazil
| | - M. Siqueira
- INNOVARE Biomarkers Laboratory; School of Medical Sciences; University of Campinas; Campinas; Brazil
| | - S. Sartor
- INNOVARE Biomarkers Laboratory; School of Medical Sciences; University of Campinas; Campinas; Brazil
| | - R. Catharino
- INNOVARE Biomarkers Laboratory; School of Medical Sciences; University of Campinas; Campinas; Brazil
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15
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Fournier N, Tuloup-Minguez V, Pourci ML, Thérond P, Jullian JC, Wien F, Leroy M, Dallongeville J, Paul JL, Leroy A. Fibrate treatment induced quantitative and qualitative HDL changes associated with an increase of SR-BI cholesterol efflux capacities in rabbits. Biochimie 2013; 95:1278-87. [DOI: 10.1016/j.biochi.2013.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 02/01/2013] [Indexed: 11/28/2022]
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16
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Kiełbowicz G, Micek P, Wawrzeńczyk C. A new liquid chromatography method with charge aerosol detector (CAD) for the determination of phospholipid classes. Application to milk phospholipids. Talanta 2013; 105:28-33. [DOI: 10.1016/j.talanta.2012.11.051] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Revised: 11/21/2012] [Accepted: 11/24/2012] [Indexed: 11/30/2022]
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17
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Zhu C, Dane A, Spijksma G, Wang M, van der Greef J, Luo G, Hankemeier T, Vreeken RJ. An efficient hydrophilic interaction liquid chromatography separation of 7 phospholipid classes based on a diol column. J Chromatogr A 2012; 1220:26-34. [DOI: 10.1016/j.chroma.2011.11.034] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Revised: 11/08/2011] [Accepted: 11/18/2011] [Indexed: 11/26/2022]
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18
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Identification of phospholipid species affected by miltefosine action in Leishmania donovani cultures using LC-ELSD, LC-ESI/MS, and multivariate data analysis. Anal Bioanal Chem 2011; 402:1169-82. [PMID: 22065347 DOI: 10.1007/s00216-011-5520-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 10/06/2011] [Accepted: 10/18/2011] [Indexed: 01/11/2023]
Abstract
Leishmaniasis is a widespread parasitic disease principally treated by intravenous drugs. Hexadecylphosphocholine (miltefosine) has recently proved its efficacy by oral route. Although its mechanism of action has been investigated, and principally relies on perturbations of the metabolism of lipids and especially phospholipids, further studies need to be conducted to detect precisely which metabolic pathways are impacted. For this purpose, the present work proposes a complete lipidomic study focused on membrane phospholipids of clones of Leishmania donovani non-treated (NT), treated (T) and resistant (R) to miltefosine. Firstly, a separation of phospholipids in normal phase high-performance liquid chromatography (NP-HPLC) was coupled to a mass spectrometer (MS) equipped with an electrospray (ESI) ion source, and response was compared to evaporative light scattering detection (ELSD). Secondly, a quantification of phospholipid classes was performed using NP-HPLC/ESI/MS on NT, T and R clones of L. donovani. Thirdly, full-scan acquisitions of analyzed samples were compared using orthogonal signal correction-partial least square-discriminant analysis (OSC-PLS-DA) to highlight phospholipid molecular species of interest between the three types of clones. Structural determination of the most relevant species has finally been performed using tandem mass spectrometry. A first hypothesis on the effect of miltefosine on lipid metabolic pathways is then proposed.
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19
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Combined reversed phase HPLC, mass spectrometry, and NMR spectroscopy for a fast separation and efficient identification of phosphatidylcholines. J Biomed Biotechnol 2010; 2011. [PMID: 20871812 PMCID: PMC2943112 DOI: 10.1155/2011/385786] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Accepted: 07/21/2010] [Indexed: 11/23/2022] Open
Abstract
In respect of the manifold involvement of lipids in biochemical processes, the analysis of intact and underivatised lipids of body fluids as well as cell and tissue extracts is still a challenging task, if detailed molecular information is required. Therefore, the advantage of combined use of high-pressure liquid chromatography (HPLC), mass spectrometry (MS), and nuclear magnetic resonance (NMR) spectroscopy will be shown analyzing three different types of extracts of the ubiquitous membrane component phosphatidylcholine. At first, different reversed phase modifications were tested on phosphatidylcholines (PC) with the same effective carbon number (ECN) for their applicability in lipid analysis. The results were taken to improve the separation of three natural PC extract types and a new reversed phase (RP)-HPLC method was developed. The individual species were characterized by one- and two-dimensional NMR and positive or negative ion mode quadrupole time of flight (q-TOF)-MS as well as MS/MS techniques. Furthermore, ion suppression effects during electrospray ionisation (ESI), difficulties, limits, and advantages of the individual analytical techniques are addressed.
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20
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Schwalbe-Herrmann M, Willmann J, Leibfritz D. Separation of phospholipid classes by hydrophilic interaction chromatography detected by electrospray ionization mass spectrometry. J Chromatogr A 2010; 1217:5179-83. [DOI: 10.1016/j.chroma.2010.05.014] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Revised: 04/30/2010] [Accepted: 05/07/2010] [Indexed: 11/17/2022]
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21
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Preynat A, Lapierre H, Thivierge M, Palin M, Cardinault N, Matte J, Desrochers A, Girard C. Effects of supplementary folic acid and vitamin B12 on hepatic metabolism of dairy cows according to methionine supply. J Dairy Sci 2010; 93:2130-42. [DOI: 10.3168/jds.2009-2796] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Accepted: 01/06/2010] [Indexed: 01/03/2023]
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22
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Dobrynin K, Abdrakhmanova A, Richers S, Hunte C, Kerscher S, Brandt U. Characterization of two different acyl carrier proteins in complex I from Yarrowia lipolytica. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2010; 1797:152-9. [DOI: 10.1016/j.bbabio.2009.09.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2009] [Revised: 09/04/2009] [Accepted: 09/10/2009] [Indexed: 11/30/2022]
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23
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Duan Y, Zhang S, Wang B, Yang B, Zhi D. The biological routes of gene delivery mediated by lipid-based non-viral vectors. Expert Opin Drug Deliv 2010; 6:1351-61. [PMID: 19780710 DOI: 10.1517/17425240903287153] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cationic lipid/DNA complexes (lipoplexes) represent an attractive alternative to viral vectors for cell transfection in vitro and in vivo but still suffer from relatively low efficiency. Comprehension of the interactions between vectors and DNA as well as cellular pathways and mechanisms in DNA entry into cells and ultimately nuclei will lead to the design of better adapted non-viral vectors for gene therapy applications. Here, some recent developments in the field on the pathways and mechanisms involved in lipoplex-mediated transfection are discussed. The techniques that are widely used to study the mechanism of gene delivery are also discussed.
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Affiliation(s)
- Yan Duan
- Dalian Nationalities University, College of Life Science, SEAC-ME Key Laboratory of Biotechnology and Bioresources Utilization, Dalian 116600, Liaoning, China
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24
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Katsogiannou M, Boustany CE, Gackiere F, Delcourt P, Athias A, Mariot P, Dewailly E, Jouy N, Lamaze C, Bidaux G, Mauroy B, Prevarskaya N, Slomianny C. Caveolae contribute to the apoptosis resistance induced by the alpha(1A)-adrenoceptor in androgen-independent prostate cancer cells. PLoS One 2009; 4:e7068. [PMID: 19763272 PMCID: PMC2742726 DOI: 10.1371/journal.pone.0007068] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Accepted: 08/25/2009] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND During androgen ablation prostate cancer cells' growth and survival become independent of normal regulatory mechanisms. These androgen-independent cells acquire the remarkable ability to adapt to the surrounding microenvironment whose factors, such as neurotransmitters, influence their survival. Although findings are becoming evident about the expression of alpha(1A)-adrenoceptors in prostate cancer epithelial cells, their exact functional role in androgen-independent cells has yet to be established. Previous work has demonstrated that membrane lipid rafts associated with key signalling proteins mediate growth and survival signalling pathways in prostate cancer cells. METHODOLOGY/PRINCIPAL FINDINGS In order to analyze the membrane topology of the alpha(1A)-adrenoceptor we explored its presence by a biochemical approach in purified detergent resistant membrane fractions of the androgen-independent prostate cancer cell line DU145. Electron microscopy observations demonstrated the colocalization of the alpha(1A)-adrenoceptor with caveolin-1, the major protein component of caveolae. In addition, we showed that agonist stimulation of the alpha(1A)-adrenoceptor induced resistance to thapsigargin-induced apoptosis and that caveolin-1 was necessary for this process. Further, immunohistofluorescence revealed the relation between high levels of alpha(1A)-adrenoceptor and caveolin-1 expression with advanced stage prostate cancer. We also show by immunoblotting that the TG-induced apoptosis resistance described in DU145 cells is mediated by extracellular signal-regulated kinases (ERK). CONCLUSIONS/SIGNIFICANCE In conclusion, we propose that alpha(1A)-adrenoceptor stimulation in androgen-independent prostate cancer cells via caveolae constitutes one of the mechanisms contributing to their protection from TG-induced apoptosis.
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Affiliation(s)
- Maria Katsogiannou
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Charbel El Boustany
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Florian Gackiere
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Philippe Delcourt
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Anne Athias
- Lipidomique-IFR100, Hôpital du Bocage, Dijon, France
| | - Pascal Mariot
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Etienne Dewailly
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Nathalie Jouy
- IFR 114, IMPRT, Institut de Recherche sur le Cancer de Lille, Lille, France
| | - Christophe Lamaze
- Institut Curie, Centre de Recherche, Laboratoire Trafic, Signalisation et Ciblage Intracellulaires, Paris, France
- CNRS, UMR144, Paris, France
| | - Gabriel Bidaux
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Brigitte Mauroy
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Natalia Prevarskaya
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
| | - Christian Slomianny
- Inserm U800, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- Laboratoire de Physiologie Cellulaire, Université Lille 1 Sciences et Technologies, Villeneuve d'Ascq, France
- * E-mail:
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25
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Harrington MG, Fonteh AN, Oborina E, Liao P, Cowan RP, McComb G, Chavez JN, Rush J, Biringer RG, Hühmer AF. The morphology and biochemistry of nanostructures provide evidence for synthesis and signaling functions in human cerebrospinal fluid. Cerebrospinal Fluid Res 2009; 6:10. [PMID: 19735572 PMCID: PMC2746175 DOI: 10.1186/1743-8454-6-10] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2009] [Accepted: 09/07/2009] [Indexed: 12/02/2022] Open
Abstract
Background Cerebrospinal fluid (CSF) contacts many brain regions and may mediate humoral signaling distinct from synaptic neurotransmission. However, synthesis and transport mechanisms for such signaling are not defined. The purpose of this study was to investigate whether human CSF contains discrete structures that may enable the regulation of humoral transmission. Methods Lumbar CSF was collected prospectively from 17 participants: with no neurological or psychiatric disease, with Alzheimer's disease, multiple sclerosis, or migraine; and ventricular CSF from two cognitively healthy participants with long-standing shunts for congenital hydrocephalus. Cell-free CSF was subjected to ultracentrifugation to yield supernatants and pellets that were examined by transmission electron microscopy, shotgun protein sequencing, electrophoresis, western blotting, lipid analysis, enzymatic activity assay, and immuno-electron microscopy. Results Over 3,600 CSF proteins were identified from repeated shotgun sequencing of cell-free CSF from two individuals with Alzheimer's disease: 25% of these proteins are normally present in membranes. Abundant nanometer-scaled structures were observed in ultracentrifuged pellets of CSF from all 16 participants examined. The most common structures included synaptic vesicle and exosome components in 30-200 nm spheres and irregular blobs. Much less abundant nanostructures were present that derived from cellular debris. Nanostructure fractions had a unique composition compared to CSF supernatant, richer in omega-3 and phosphoinositide lipids, active prostanoid enzymes, and fibronectin. Conclusion Unique morphology and biochemistry features of abundant and discrete membrane-bound CSF nanostructures are described. Prostaglandin H synthase activity, essential for prostanoid production and previously unknown in CSF, is localized to nanospheres. Considering CSF bulk flow and its circulatory dynamics, we propose that these nanostructures provide signaling mechanisms via volume transmission within the nervous system that are for slower, more diffuse, and of longer duration than synaptic transmission.
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Affiliation(s)
- Michael G Harrington
- Molecular Neurology, Huntington Medical Research Institutes, Pasadena, CA, 91101 USA.
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26
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Royer MC, Lemaire-Ewing S, Desrumaux C, Monier S, Pais de Barros JP, Athias A, Néel D, Lagrost L. 7-ketocholesterol incorporation into sphingolipid/cholesterol-enriched (lipid raft) domains is impaired by vitamin E: a specific role for alpha-tocopherol with consequences on cell death. J Biol Chem 2009; 284:15826-34. [PMID: 19351882 DOI: 10.1074/jbc.m808641200] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Cholesterol oxides, in particular 7-ketocholesterol, are proatherogenic compounds that induce cell death in the vascular wall when localized in lipid raft domains of the cell membrane. Deleterious effects of 7-ketocholesterol can be prevented by vitamin E, but the molecular mechanism involved is unclear. In this study, unlike gamma-tocopherol, the alpha-tocopherol vitamin E form was found to prevent 7-ketocholesterol-mediated apoptosis of A7R5 smooth muscle cells. To be operative, alpha-tocopherol needed to be added to the cells before 7-ketocholesterol, and its anti-apoptotic effect was reduced and even suppressed when added together or after 7-ketocholesterol, respectively. Both pre- and co-treatment of the cells with alpha-tocopherol resulted in the redistribution of 7-ketocholesterol out of the sphingolipid/cholesterol-enriched (lipid raft) domains. In turn, fewer amounts of alpha-tocopherol associated with lipid rafts on 7-ketocholesterol-pretreated cells compared with untreated cells, with no prevention of cell death in this case. In further support of the implication of lipid raft domains, the dephosphorylation/inactivation of Akt-PKB was involved in the 7-ketocholesterol-induced apoptosis. Akt-PKB dephosphorylation was prevented by alpha-tocopherol, but not gamma-tocopherol pretreatment.
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Vejux A, Guyot S, Montange T, Riedinger JM, Kahn E, Lizard G. Phospholipidosis and down-regulation of the PI3-K/PDK-1/Akt signalling pathway are vitamin E inhibitable events associated with 7-ketocholesterol-induced apoptosis. J Nutr Biochem 2009; 20:45-61. [DOI: 10.1016/j.jnutbio.2007.12.001] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2007] [Revised: 12/06/2007] [Accepted: 12/07/2007] [Indexed: 01/16/2023]
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28
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Wang D, Xu W, Xu X, Zhou G, Zhu Y, Li C, Yang M. Determination of intramuscular phospholipid classes and molecular species in Gaoyou duck. Food Chem 2009. [DOI: 10.1016/j.foodchem.2008.05.052] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Garrett TA, Raetz CRH, Richardson T, Kordestani R, Son JD, Rose RL. Identification of phosphatidylserylglutamate: a novel minor lipid in Escherichia coli. J Lipid Res 2008; 50:1589-99. [PMID: 19096047 DOI: 10.1194/jlr.m800549-jlr200] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Advances in mass spectrometry have facilitated the identification of novel lipid structures. In this work, we fractionated the lipids of Escherichia coli B and analyzed the fractions using negative-ion electrospray ionization mass spectrometry to reveal unknown lipid structures. Analysis of a fraction eluting with high salt from DEAE cellulose revealed a series of ions not corresponding to any of the known lipids of E. coli. The ions, with m/z 861.5, 875.5, 887.5, 889.5, and 915.5, were analyzed using collision-induced dissociation mass spectrometry (MS/MS) and yielded related fragmentation patterns consistent with a novel diacylated glycerophospholipid. Product ions arising by neutral loss of 216 mass units were observed with all of the unknowns. A corresponding negative product ion was also observed at m/z 215.0. Additional ions at m/z 197.0, 171.0, 146.0, and 128.0 were used to propose the novel structure phosphatidylserylglutamate (PSE). The hypothesized structure was confirmed by comparison with the MS/MS spectrum of a synthetic standard. Normal phase liquid chromatography-mass spectrometry analysis further showed that the endogenous PSE and synthetic PSE eluted with the same retention times. PSE was also observed in the equivalent anion exchange fractions of total lipids extracted from the wild-type E. coli K-12 strain MG1655.
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Affiliation(s)
- Teresa A Garrett
- Department of Chemistry, Vassar College, Poughkeepsie, NY 12604, USA.
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Leroy C, Tricot S, Lacour B, Grynberg A. Protective effect of eicosapentaenoic acid on palmitate-induced apoptosis in neonatal cardiomyocytes. Biochim Biophys Acta Mol Cell Biol Lipids 2008; 1781:685-93. [DOI: 10.1016/j.bbalip.2008.07.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 07/07/2008] [Accepted: 07/23/2008] [Indexed: 11/29/2022]
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31
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Comparison between charged aerosol detection and light scattering detection for the analysis of Leishmania membrane phospholipids. J Chromatogr A 2008; 1209:88-94. [PMID: 18823632 DOI: 10.1016/j.chroma.2008.07.080] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2008] [Revised: 07/17/2008] [Accepted: 07/24/2008] [Indexed: 11/20/2022]
Abstract
The performance of charged aerosol detection (CAD) was compared to evaporative light scattering detection (ELSD) for the analysis of Leishmania membrane phospholipid (PL) classes by NP-HPLC. In both methods, a PVA-Sil column was used for the determination of the major Leishmania membrane PLs, phosphatidic acid, phosphatidylglycerol, cardiolipin, phosphatidylinositol, phosphatidylethathanolamine, phosphatidylserine, lysophosphatidylethathanolamine, phosphatidylcholine, sphingomyelin and lysophosphatidylcholine in the same analysis. Although the response of both detection methods can be fitted to a power function, CAD response can also be described by a linear model with determination coefficients (R(2)) ranging from 0.993 to 0.998 for an injected mass of 30 ng to 20.00 microg. CAD appeared to be directly proportional when a restricted range was used and it was found to be more sensitive at lowest mass range than ELSD. With HPLC-ELSD the limits of detection (LODs) were between 71 and 1195 ng and the limits of quantification (LOQs) were between 215 and 3622 ng. With HPLC-CAD, the LODs were between 15 and 249 ng whereas the limits of quantification (LOQs) were between 45 and 707 ng. The accuracy of the methods ranged from 62.8 to 115.8% and from 58.4 to 110.5% for ELSD and CAD, respectively. The HPLC-CAD method is suitable to assess the influence of miltefosine on the composition of Leishmania membrane phospholipids.
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32
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Tanaka K, Fukuda R, Ono Y, Eguchi H, Nagasawa S, Nakatani Y, Watanabe H, Nakanishi H, Taguchi R, Ohta A. Incorporation and remodeling of extracellular phosphatidylcholine with short acyl residues in Saccharomyces cerevisiae. Biochim Biophys Acta Mol Cell Biol Lipids 2008; 1781:391-9. [PMID: 18599377 DOI: 10.1016/j.bbalip.2008.06.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2008] [Revised: 05/17/2008] [Accepted: 06/03/2008] [Indexed: 11/28/2022]
Abstract
The pem1/cho2 pem2/opi3 double mutant of Saccharomyces cerevisiae, which is auxotrophic for choline because of the deficiency in methylation activities of phosphatidylethanolamine, grew in the presence of 0.1 mM dioctanoyl-phosphatidylcholine (diC(8)PC). Analysis of the metabolism of methyl-(13)C-labeled diC(8)PC ((methyl-(13)C)(3)-diC(8)PC) by electrospray ionization tandem mass spectrometry (ESI-MS/MS) revealed that it was rapidly converted to (methyl-(13)C)(3)-PCs containing C16 or C18 acyl chains. (Methyl-(13)C)(3)-8:0-lyso-PC, (methyl-(13)C)(3)-8:0-16:0-PC and (methyl-(13)C)(3)-8:0-16:1-PC, which are the probable intermediate molecular species of acyl chain remodeling, appeared immediately after 5 min of pulse-labeling and decreased during the subsequent chase period. These results indicate that diC(8)PC was taken up by the pem1 pem2 double mutant and that the acyl chains of diC(8)PC were exchanged with longer yeast fatty acids. The temporary appearance of (methyl-(13)C)(3)-8:0-lyso-PC suggests that the remodeling reaction may consist of deacylation and reacylation by phospholipase activities and acyltransferase activities, respectively. The detailed analyses of the structures of (methyl-(13)C)(3)-8:0-16:0-PC and (methyl-(13)C)(3)-8:0-16:1-PC by MS/MS and MS(3) strongly suggest that most (methyl-(13)C)(3)-8:0-16:0-PCs have a C16:0 acyl chain at sn-1 position, whereas (methyl-(13)C)(3)-8:0-16:1-PCs have a C16:1 acyl chain at either sn-1 or sn-2 position in a similar frequency, implying that the initial C16:0 acyl chain substitution prefers the sn-1 position; however, the C16:1 acyl chain substitution starts at both sn-1 and sn-2 positions. The current study provides a pivotal insight into the acyl chain remodeling of phospholipids in yeast.
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Affiliation(s)
- Kunihiko Tanaka
- Department of Biotechnology, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
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Sugiura S, Kuroiwa T, Kagota T, Nakajima M, Sato S, Mukataka S, Walde P, Ichikawa S. Novel method for obtaining homogeneous giant vesicles from a monodisperse water-in-oil emulsion prepared with a microfluidic device. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:4581-4588. [PMID: 18376890 DOI: 10.1021/la703509r] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A novel technique called the "lipid-coated ice droplet hydration method" is presented for the preparation of giant vesicles with a controlled size between 4 and 20 microm and entrapment yields for water-soluble molecules of up to about 30%. The method consists of three main steps. In the first step, a monodisperse water-in-oil emulsion with a predetermined average droplet diameter between 4 and 20 microm is prepared by microchannel emulsification, using sorbitan monooleate (Span 80) and stearylamine as emulsifiers and hexane as oil. In the second step, the water droplets of the emulsion are frozen and separated from the supernatant hexane solution by precipitation, followed by a removal of the supernatant and followed by the replacement of Span 80 by using a hexane solution containing egg yolk phosphatidylcholine, cholesterol, and stearylamine (5:5:1, molar ratio). This procedure is performed at -10 degrees C to keep the water droplets of the emulsion in a frozen state and thereby to avoid extensive water droplet coalescence. In the third step, hexane is evaporated at -4 to -7 degrees C and an external water phase is added to the remaining mixture of lipids and water droplets to form giant vesicles that have an average size in the range of that of the initial emulsion droplets (4-20 microm). The entrapment yield and the lamellarity of the vesicles obtained depend on the lipid/water droplet ratio and on the composition of the external water phase. At high lipid/water droplet ratio, the giant vesicles have a thicker membrane (indicating multilamellarity) and a higher entrapment yield than in the case of a low lipid/water droplet ratio. The highest entrapment yield ( approximately 35%) is obtained if the added external water phase contains preformed unilamellar egg phosphatidylcholine vesicles with an average diameter of 50 nm. The addition of these small vesicles minimizes the water droplet coalescence during the third step of the vesicle preparation, thereby decreasing the extent of release of water-soluble molecules originally present in the water droplets. The GVs prepared can be extruded through polycarbonate membranes to yield large unilamellar vesicles with about 100 nm diameter. This size reduction, however, leads to a decrease in the entrapment yield to about 12% due to solute leakage from the vesicles during the extrusion process.
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Affiliation(s)
- Shinji Sugiura
- Food Engineering Division, National Food Research Institute, Tsukuba 305-8642, Japan
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34
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Dewettinck K, Rombaut R, Thienpont N, Le TT, Messens K, Van Camp J. Nutritional and technological aspects of milk fat globule membrane material. Int Dairy J 2008. [DOI: 10.1016/j.idairyj.2007.10.014] [Citation(s) in RCA: 380] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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35
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Wanasundara P, Shahidi F. Extraction and Analysis of Lipids. FOOD SCIENCE AND TECHNOLOGY 2008. [DOI: 10.1201/9781420046649.ch5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Boselli E, Pacetti D, Curzi F, Frega N. Determination of phospholipid molecular species in pork meat by high performance liquid chromatography–tandem mass spectrometry and evaporative light scattering detection. Meat Sci 2008; 78:305-13. [DOI: 10.1016/j.meatsci.2007.06.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2007] [Revised: 06/04/2007] [Accepted: 06/25/2007] [Indexed: 10/23/2022]
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37
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Differential regulation of cell death in head and neck cell carcinoma through alteration of cholesterol levels in lipid rafts microdomains. Biochem Pharmacol 2008; 75:761-72. [DOI: 10.1016/j.bcp.2007.10.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2007] [Revised: 09/25/2007] [Accepted: 10/01/2007] [Indexed: 11/18/2022]
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38
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Padmini E, Sundari BT. Erythrocyte glutathione depletion impairs resistance to haemolysis in women consuming alcohol. J Clin Biochem Nutr 2008; 42:14-20. [PMID: 18231625 PMCID: PMC2212343 DOI: 10.3164/jcbn.2008003] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2006] [Accepted: 01/28/2007] [Indexed: 11/22/2022] Open
Abstract
Alcohol abuse is known to cause an array of ethanol induced abnormalities in men but very few reports are available on the effect of alcohol in women. None of them discuss the effect of ethanol consumption on erythrocyte membrane. In the present study, erythrocytes in women who consume alcohol showed significant decrease in their ability to resist haemolysis with HPLC studies. Erythrocyte membrane indicates decreased phospholipid (p<0.05) levels, which increased the cholesterol/phospholipid ratio significantly (p<0.01) in women who consume alcohol. This can decrease the fluidity of membrane, which appears to be related to the effect of ethanol on erythrocyte membrane. Also the protection against exogenous and endogenous peroxides in the erythrocytes of alcoholic women is considerably affected due to decreased (p<0.05) activity of catalase, glucose-6-phosphate dehydrogenase, protein-SH group and glutathione (GSH). Enhanced free radical generation induced oxidation of oxyHb to metHb in alcoholics. Increased methemoglobin leads to significant reduction in membrane GSH, which may cause protein thiol oxidation. Thus peroxidative damage to membrane lipids and oxidation of membrane protein thiols potentially harmful to membrane fluidity and flexibility is responsible for decreased resistance to haemolysis as demonstrated in women who consume alcohol.
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Affiliation(s)
- Ekambaram Padmini
- P.G and Research Department Of Biochemistry, Bharathi Women’s College, Affiliated to the University of Madras, Chennai-600 108, Tamilnadu, India
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39
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Separation and Quantification of Vegetable Oil Based Polyols by High Performance Liquid Chromatography with Evaporative Light Scattering Detection. J AM OIL CHEM SOC 2007. [DOI: 10.1007/s11746-007-1113-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Affiliation(s)
- Jiann‐Tsyh Lin
- a United States Department of Agriculture , Western Regional Research Center, Agricultural Research Service , California, USA
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41
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Bang DY, Ahn EJ, Moon MH. Shotgun analysis of phospholipids from mouse liver and brain by nanoflow liquid chromatography/tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 852:268-77. [PMID: 17296335 DOI: 10.1016/j.jchromb.2007.01.028] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2006] [Revised: 01/08/2007] [Accepted: 01/17/2007] [Indexed: 11/24/2022]
Abstract
It was demonstrated that a shotgun approach can be utilized for the characterization of phospholipids (PLs) extracted from mouse liver and brain by using nanoflow reversed phase liquid chromatography/electrospray ionization tandem mass spectrometry (LC-ESI-MS-MS). In this study, a dual scan method was introduced for the high throughput analysis of complex PL mixtures. Two consecutive LC-ESI-MS-MS runs were made in positive ion mode (for phosphatidylcholines (PCs) and phosphatidylethanolamines (PEs)) first followed by analysis in negative ion mode (for phosphatidylserine (PSs) and phosphatidylinositol (PIs)) using the same binary gradient elution with and without adding formic acid, respectively. The separation of the PLs was carried out using a home made pull tip capillary column (C18) with an end frit. The MS analysis of the eluted PL molecules was performed with a precursor scan followed by a data dependent MS-MS scan. The developed dual scan method was tested with the extracts of PCs and PIs mixtures from soybean, PEs from Escherichia coli, and PSs from bovine brain. It was further applied for the characterization of intact PL samples that were extracted from both mouse liver and mouse brain in the laboratory, and resulted in the identification of 90 and 80 PL species, respectively.
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Affiliation(s)
- Dae Young Bang
- Department of Chemistry, Yonsei University, Seoul 120-749, South Korea
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42
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Phospho- and sphingolipid content of selected dairy products as determined by HPLC coupled to an evaporative light scattering detector (HPLC–ELSD). J Food Compost Anal 2007. [DOI: 10.1016/j.jfca.2006.01.010] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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43
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Bian W, Li J, Jiang C. Spectrofluorimetric Determination of Lecithin in Serum Samples Using Enoxacine‐Terbium Probe. ANAL LETT 2007. [DOI: 10.1080/00032710701296937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Hayakawa J, Okabayashi Y. Simultaneous Analysis of Eight Phospholipid Classes by Liquid Chromatography/Mass Spectrometry: Application to Human HDL. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-200058333] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Jun Hayakawa
- a Shionogi Research Laboratories , Shionogi & Co., Ltd. , Osaka, Japan
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45
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Perona JS, Ruiz‐Gutierrez V. Quantitative Lipid Composition of Iberian Pig Muscle and Adipose Tissue by HPLC. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070500187707] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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46
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Persson E, Löfgren L, Hansson G, Abrahamsson B, Lennernäs H, Nilsson R. Simultaneous assessment of lipid classes and bile acids in human intestinal fluid by solid-phase extraction and HPLC methods. J Lipid Res 2007; 48:242-51. [PMID: 17062898 DOI: 10.1194/jlr.d600035-jlr200] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The purpose of the study reported here was to develop a method for the determination of lipid classes in intestinal fluids, including bile acids (BAs). A solid-phase extraction (SPE) method using C18 and silica columns for the separation of BAs, phospholipids (PLs), and neutral lipids (NLs), including free fatty acids, has been developed and validated. Fed-state small intestinal fluid collected from humans was treated with orlistat to inhibit lipolysis and mixed with acetic acid and methanol before SPE to maximize lipid recoveries. BAs, PLs, and NLs were isolated using lipophilic and polar solvents to promote elution from the SPE columns. The different lipid classes were subsequently analyzed using three separately optimized HPLC methods with evaporative light-scattering detectors. High recoveries (>90%) of all lipids evaluated were observed, with low coefficients of variation (<5%). The HPLC methods developed were highly reproducible and allowed baseline separation of nearly all lipid classes investigated. In conclusion, these methods provide a means of lipid class analysis of NLs, PLs, and BAs in human fed-state small intestinal fluid, with potential use in other fluids from the intestinal tract and animals.
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Affiliation(s)
- Eva Persson
- Department of Pharmacy, Uppsala University, S-751 23 Uppsala, Sweden
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47
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Garrett TA, Kordestani R, Raetz CR. Quantification of Cardiolipin by Liquid Chromatography‐Electrospray Ionization Mass Spectrometry. Methods Enzymol 2007; 433:213-30. [DOI: 10.1016/s0076-6879(07)33012-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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48
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49
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Hvattum E, Uran S, Sandbaek AG, Karlsson AA, Skotland T. Quantification of phosphatidylserine, phosphatidic acid and free fatty acids in an ultrasound contrast agent by normal-phase high-performance liquid chromatography with evaporative light scattering detection. J Pharm Biomed Anal 2006; 42:506-12. [PMID: 16762523 DOI: 10.1016/j.jpba.2006.04.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2005] [Revised: 04/25/2006] [Accepted: 04/25/2006] [Indexed: 12/01/2022]
Abstract
Sonazoid is a new contrast agent for ultrasound imaging. The product is an aqueous suspension of perfluorobutane microbubbles coated with phospholipids obtained from hydrogenated egg phosphatidylserine (H-EPS). A normal-phase high-performance liquid chromatographic (HPLC) method with evaporative light scattering detection was developed for quantification of free fatty acids, phosphatidylserine and phosphatidic acid in H-EPS and Sonazoid. Separation of the lipids was carried out on an HPLC diol column and a gradient of chloroform and methanol with 0.2% formic acid titrated to pH 7.5 with ammonia. The calibration standards contained stearic acid, distearoyl-phosphatidic acid (DSPA) and distearoyl-phosphatidylserine (DSPS) in the concentration range of 0.016-1.0mg/ml (0.4-25microg injected). The method was validated with a limit of quantification of the three lipids set to 0.4microg (approximately 20-60microM). The best fit of the three calibration curves were obtained when the logarithmic transformed theoretical lipid concentration was plotted against the logarithmic transformed area under the peak and fitted to a second order polynomial equation. Stearic acid, DSPA and DSPS were analysed with an intermediate precision ranging from 4.4% to 5.3% R.S.D. and they were extracted from an aqueous suspension with a recovery ranging from 103.3% to 113.3%. The sum of total phospholipid concentration determined in H-EPS ranged from 96.4% to 103.2% of the theoretical values. The lipids in the ultrasound product were quantitated with a repeatability ranging from 6.2% to 11.7% R.S.D.
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Affiliation(s)
- Erlend Hvattum
- GE Healthcare Medical Diagnostics, Nycoveien 2, N-0401 Oslo, Norway
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50
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Chang CD, Harris DJ. Reversed-Phase High Performance Liquid Chromatographic Analysis of Cationic Lipid-Based Gene Transfer Agents. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826079808006588] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- C.-D. Chang
- a Chemistry Department Genzyme , Corporation One Kendall Square , Cambridge, MA, 02139
| | - D. J. Harris
- a Chemistry Department Genzyme , Corporation One Kendall Square , Cambridge, MA, 02139
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