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Article Dans Une Revue Investigative Ophthalmology & Visual Science Année : 2018

A Metabolomics Profiling of Glaucoma Points to Mitochondrial Dysfunction, Senescence, and Polyamines Deficiency

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Résumé

Purpose: To determine the plasma metabolomic signature of primary open-angle glaucoma (POAG). Methods: We compared the metabolomic profiles of plasma from individuals with POAG (n = 36) with age- and sex-matched controls with cataract (n = 27). A targeted metabolomics study was performed using the standardized p180 Biocrates Absolute IDQ p180 kit with a QTRAP 5500 mass spectrometer. Multivariate analyses were performed using principal component analysis (PCA) and the least absolute shrinkage and selection operator (LASSO) method. Results: Among the 151 metabolites accurately measured, combined univariate and multivariate analyses revealed 18 discriminant metabolites belonging to the carbohydrate, acyl-carnitine, phosphatidylcholine, amino acids, and polyamine families. The metabolomic signature of POAG points to three closely interdependent pathophysiologic conditions; that is, defective mitochondrial oxidation of energetic substrates, altered metabolism resembling that observed in senescence, and a deficiency in spermidine and spermine, both polyamines being involved in the protection of retinal ganglion cells. Conclusions: Our results highlight a systemic and age-related mitochondrial defect in the pathogenesis of POAG.
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hal-02388225 , version 1 (05-05-2021)

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Paternité - Pas d'utilisation commerciale - Pas de modification - CC BY 4.0

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Citer

Stéphanie Leruez, Alexandre Marill, Thomas Bresson, Grégoire de Saint Martin, Adrien Buisset, et al.. A Metabolomics Profiling of Glaucoma Points to Mitochondrial Dysfunction, Senescence, and Polyamines Deficiency. Investigative Ophthalmology & Visual Science, 2018, 59 (11), pp.4355. ⟨10.1167/iovs.18-24938⟩. ⟨hal-02388225⟩
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