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Pintado-Sierra M, García-Álvarez I, Bribián A, Medina-Rodríguez EM, Lebrón-Aguilar R, Garrido L, de Castro F, Fernández-Mayoralas A, Quintanilla-López JE. A comprehensive profiling of sulfatides in myelin from mouse brain using liquid chromatography coupled to high-resolution accurate tandem mass spectrometry. Anal Chim Acta 2016; 951:89-98. [PMID: 27998489 DOI: 10.1016/j.aca.2016.11.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/25/2016] [Accepted: 11/28/2016] [Indexed: 11/17/2022]
Abstract
Sulfatides are sulfoglycolipids found in the myelin sheath. The composition ratio of sulfatide molecular species changes with age, and it has also been associated with the pathogenesis of various human central nervous system diseases. However, profiling sulfatides in biological samples is difficult, due to the great variety of molecular species. In this work, a new, easy and reliable liquid chromatography-electrospray tandem mass spectrometry (LC-ESI(+)-MS/MS) method has been developed to profile sulfatide content in biological samples of myelin. The 'wrong-way-round' ionization effect has been described for this type of molecules for the first time, making it possible to correctly identify as many as 37 different sulfatides in mouse brain myelin samples, including molecules with different fatty acid chain lengths and varying degrees of unsaturation and hydroxylation. A chemometric analysis of their relative abundances showed that the main difference among individuals of different ages was the content of sulfatides with odd-numbered fatty acid chains, in addition to hydroxylated species.
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Affiliation(s)
- M Pintado-Sierra
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - I García-Álvarez
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain; Grupo de Neurobiología del Desarrollo-GNDe, Hospital Nacional de Parapléjicos, Finca "La Peraleda", 45071, Toledo, Spain
| | - A Bribián
- Grupo de Neurobiología del Desarrollo-GNDe, Hospital Nacional de Parapléjicos, Finca "La Peraleda", 45071, Toledo, Spain; Grupo de Neurobiología del Desarrollo-GNDe, Instituto Cajal (CSIC), Doctor Arce 37, 28002, Madrid, Spain
| | - E M Medina-Rodríguez
- Grupo de Neurobiología del Desarrollo-GNDe, Hospital Nacional de Parapléjicos, Finca "La Peraleda", 45071, Toledo, Spain
| | - R Lebrón-Aguilar
- Instituto de Química-Física 'Rocasolano' (CSIC), Serrano 119, 28006, Madrid, Spain
| | - L Garrido
- Instituto de Ciencia y Tecnología de Polímeros (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - F de Castro
- Grupo de Neurobiología del Desarrollo-GNDe, Hospital Nacional de Parapléjicos, Finca "La Peraleda", 45071, Toledo, Spain; Grupo de Neurobiología del Desarrollo-GNDe, Instituto Cajal (CSIC), Doctor Arce 37, 28002, Madrid, Spain
| | - A Fernández-Mayoralas
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
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Kuchař L, Asfaw B, Rybová J, Ledvinová J. Tandem Mass Spectrometry of Sphingolipids: Applications for Diagnosis of Sphingolipidoses. Adv Clin Chem 2016; 77:177-219. [PMID: 27717417 DOI: 10.1016/bs.acc.2016.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In recent years, mass spectrometry (MS) has become the dominant technology in lipidomic analysis. It is widely used in diagnosis and research of lipid metabolism disorders including those characterized by impairment of lysosomal functions and storage of nondegraded-degraded substrates. These rare diseases, which include sphingolipidoses, have severe and often fatal clinical consequences. Modern MS methods have contributed significantly to achieve a definitive diagnosis, which is essential in clinical practice to begin properly targeted patient care. Here we summarize MS and tandem MS methods used for qualitative and quantitative analysis of sphingolipids (SL) relative to the diagnostic process for sphingolipidoses and studies focusing on alterations in cell functions due to these disorders. This review covers the following topics: Tandem MS is sensitive and robust in determining the composition of sphingolipid classes in various biological materials. Its ability to establish SL metabolomic profiles using MS bench-top analyzers, significantly benefits the first stages of a diagnosis as well as metabolic studies of these disorders. It can thus contribute to a better understanding of the biological significance of SL.
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Affiliation(s)
- L Kuchař
- Charles University in Prague and General University Hospital, Prague, Czech Republic.
| | - B Asfaw
- Charles University in Prague and General University Hospital, Prague, Czech Republic
| | - J Rybová
- Charles University in Prague and General University Hospital, Prague, Czech Republic
| | - J Ledvinová
- Charles University in Prague and General University Hospital, Prague, Czech Republic.
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