MS-based targeted metabolomics of eicosanoids and other oxylipins: Analytical variability and interlaboratory comparison of esterified oxylipin profile
In: European RFMF Metabomeeting 2020 ; https://hal.science/hal-02494583 ; European RFMF Metabomeeting 2020, Jan 2020, Toulouse, France. , 262, 2020
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IntroductionOxylipins are potent lipid mediators involved in numerous physiological and pathological processesand their quantitative profiling has gained a lot of attention [1]. To maximize the utility of theoxylipin profiling in clinical research it is now crucial (i) to assess its analytical variability; (ii) todetermine its comparability between laboratories and (iii) to identify putative critical oxylipins. Thesethree main challenges are addressed within the EU JPI HDHL*-Oxygenate project.Technological and methodological innovationTo address the challenges stated above, a SOP was established by a reference laboratory for the MSbasedtargeted metabolomics of total oxylipins (free + esterified, ~160 oxylipins) in human plasma[2]. The intra- and inter-day variabilities of each oxylipin were assessed. Then, the SOP wastransferred to 4 independent laboratories together with mixtures of internal standards, calibrantsand 7 different pools of plasma to determine the comparability of oxylipin profiles between labs.Results and impactThe cumulated intra-/inter-day variabilities revealed that 68 % of oxylipins (>LLOQ) have a CV<20%.The interlab-variability was low and dependent on the type of plasma analyzed. Overall, our resultsshow that the MS-based profiling of total oxylipins in human plasma is a robust tool for clinicalresearch. Moreover, the comparability of oxylipin profiles will allow generating large-scale databasesallowing a better understanding of the relationships between oxylipins and human health.References[1] Gladine C. et al. 2019. Free Radical Biology and Medicine 144 (2019) 72–89[2] Ostermann et al. 2019. Prostag Oth Lipid M. DOI:10.1016/j.prostaglandins.2019.106384*Joint Programming Initiative “A healthy diet for a healthy life”
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MS-based targeted metabolomics of eicosanoids and other oxylipins: Analytical variability and interlaboratory comparison of esterified oxylipin profile
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Autor/in / Beteiligte Person: | Dalle, Céline ; Mainka, Malwina ; Dalloux-Chioccioli, Jessica ; Ostermann, Annika I ; Rothe, Michael ; Newman, John W. ; Gladine, Cécile ; Schebb, Nils Helge ; Unité de Nutrition Humaine (UNH) ; Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ; Chair of Food Chemistry ; University of Würzburg ; University of Wuppertal ; Institut National de la Santé et de la Recherche Médicale (INSERM) ; Université Toulouse III - Paul Sabatier (UT3) ; Université de Toulouse (UT) ; MetaboHUB-MetaToul ; MetaboHUB-Génopole Toulouse Midi-Pyrénées Auzeville (GENOTOUL) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Ecole Nationale Vétérinaire de Toulouse (ENVT) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Toulouse III - Paul Sabatier (UT3) ; Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ; Institut of Food Toxicology ; University of Veterinary Medicine Hannover ; Lipidomix, GMBH ; Western Human Nutrition Research Center ; United States Department of Agriculture (USDA) ; Department of Nutrition ; Harvard School of Public Health |
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Zeitschrift: | European RFMF Metabomeeting 2020 ; https://hal.science/hal-02494583 ; European RFMF Metabomeeting 2020, Jan 2020, Toulouse, France. , 262, 2020 |
Veröffentlichung: | HAL CCSD, 2020 |
Medientyp: | Konferenz |
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