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Metabolomic profiling suggests systemic signatures of premature aging induced by Hutchinson–Gilford progeria syndrome

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Abstract

Introduction

Hutchinson-Gilford Progeria Syndrome (HGPS) is an extremely rare genetic disorder. HGPS children present a high incidence of cardiovascular complications along with altered metabolic processes and an accelerated aging process. No metabolic biomarker is known and the mechanisms underlying premature aging are not fully understood.

Objectives

The present work aims to evaluate the metabolic alterations in HGPS using high resolution mass spectrometry.

Methods

The present study analyzed plasma from six HGPS patients of both sexes (7.7 ± 1.4 years old; mean ± SD) and eight controls (8.6 ± 2.3 years old) by LC–MS/MS in high-resolution non-targeted metabolomics (Q-Exactive Plus). Targeted metabolomics was used to validate some of the metabolites identified by the non-targeted method in a triple quadrupole (TSQ-Quantiva).

Results

We found several endogenous metabolites with statistical differences between control and HGPS children. Multivariate statistical analysis showed a clear separation between groups. Potential novel metabolic biomarkers were identified using the multivariate area under ROC curve (AUROC) based analysis, showing an AUC value higher than 0.80 using only two metabolites, and tending to 1.00 when increasing the number of metabolites in the AUROC model. Taken together, changed metabolic pathways involve sphingolipids, amino acids, and oxidation of fatty acids, among others.

Conclusion

Our data show significant alterations in cellular energy use and availability, in signal transduction, and lipid metabolites, adding new insights on metabolic alterations associated with premature aging and suggesting novel putative biomarkers.

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Acknowledgements

We are grateful to The Progeria Research Foundation for the availability of plasma samples, to Edna Aleixo from the Federal University of Rio de Janeiro for assistance with the importation process and to the Laboratório de Apoio ao Desenvolvimento Tecnológico (LADETEC) of the Chemistry Institute of the Federal University of Rio de Janeiro for providing high quality infrastructure for the LC–MS analysis.

Funding

This work was funded by the Ministry of Health (DECIT), the Brazilian National Research Council (CNPq), the Carlos Chagas Filho Rio de Janeiro State Research Foundation (FAPERJ) and National Institute of Science and Technology for Regenerative Medicine.

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Authors

Contributions

GM and ACCC conceptualized the study and wrote the manuscript; GM, CGMS, JAME, GPCE, FCSN, GC, GBD, LM, ACCC acquired and analyzed the data; VOC, GBD, FCSN, ACCC critically revised the study and the manuscript.

Corresponding authors

Correspondence to Gilberto Barbosa Domont or Antonio Carlos Campos de Carvalho.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Monnerat, G., Evaristo, G.P.C., Evaristo, J.A.M. et al. Metabolomic profiling suggests systemic signatures of premature aging induced by Hutchinson–Gilford progeria syndrome. Metabolomics 15, 100 (2019). https://doi.org/10.1007/s11306-019-1558-6

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  • DOI: https://doi.org/10.1007/s11306-019-1558-6

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