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Initial Analysis of Lipid Metabolomic Profile Reveals Differential Expression Features in Myeloid Malignancies

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DOI: 10.4236/jct.2015.615138    4,677 Downloads   5,095 Views   Citations

ABSTRACT

The purpose of this preliminary study was to determine the comparative lipid profile of blood plasma samples of healthy individuals and patients with Myeloproliferative Neoplasms. Methods: Untargeted Shotgun MS/MS Analysis was performed to evaluate plasma samples from 153 participants, being 90 of the Control Group, 43 Myeloproliferative Neoplasms (MPN), 11 Myelodysplastic Syndromes (MDS) and 9 Acute Myeloid Leukemias (AML). Lipids were extracted from plasma using the Bligh-Dyer protocol. Data were acquired using the AB-Sciex Analyst TF, processed using the AB-Sciex LipidViewTM and the web-based analytical pipeline MetaboAnalyst 2.0 (www.metaboanalyst.ca). Results: Untargeted analysis identified in negative and positive-modes a total of 658 features at 2 ppm resolution. PCA and PLS-DA analysis revealed clear discrimination among groups, in particular for AML patients. Main lipid groups differentially expressed were: Monoacylglycerols (MAG), Glucosylceramide E (GlcdE), Ethyl Esters (EE), Lysophosphatidic acid (LPA), Sulfoquinovosil diacylglycerols (SQDG), Monoglycerols (MG), Methyl Ethanolamines (ME), Lysophosphatidylcholines (LPC), Dimethyl Phosfatidyletanolamines (DMPE), Monometylphosphatidiletanolamines (MMPE), Ceramide-1-phosphate (CerP), Glicerophosphoglycerols (GP), Lysomonomethyl-Phosphatidylethanolamines (LMMPE), Phosphatidic Acids (PA), Ergosterols (ERG), Glycerophosphoserine (PS), Diacylglycerols (DAG), Hexocylceramides (HexCer) and Lanosterol (Lan). ROC Curve Analysis revealed Total LMMPE as the strongest discriminating marker between Controls from Patients. In addition, these lipids were also able to differentiate MDS and AML from NPM. Conclusions: The Myeloproliferative Neoplasms from the point of view of global plasma lipidomics are accompanied by several modifications. In particular, the Lysomonomethyl-Phosphatidylethanolamines (LMMPE) seems to play important differentiating roles among them.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

de Oliveira, A. , Da Silva, I. , Turco, E. , Júnior, H. and Chauffaille, M. (2015) Initial Analysis of Lipid Metabolomic Profile Reveals Differential Expression Features in Myeloid Malignancies. Journal of Cancer Therapy, 6, 1262-1272. doi: 10.4236/jct.2015.615138.

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