Portal de investigación
Plasma metabolome and skin proteins in Charcot-Marie-Tooth 1A patients
Fecha de publicación:
Autores de IIS La Fe
Participantes ajenos a IIS La Fe
- Soldevilla, B
- Cuevas-Martin, C
- Ibáñez C
- Santacatterina, F
- Alberti, MA
- Simo, C
- Casasnovas, C
- Marquez-Infante, C
- Pascual, SI
- Sanchez-Arago, M
- Espinos, C
- Palau, F
- Cuezva, JM
Grupos
Abstract
Objective Charcot-Marie-Tooth 1A (CMT1A) disease is the most common inherited neuropathy that lacks of therapy and of molecular markers to assess disease severity. Herein, we have pursued the identification of potential biomarkers in plasma samples and skin biopsies that could define the phenotype of CMT1A patients at mild (Mi), moderate (Mo) and severe (Se) stages of disease as assessed by the CMT neuropathy score to contribute to the understanding of CMT pathophysiology and eventually inform of the severity of the disease. Methods We have used: (i) a high-throughput untargeted metabolomic approach of plasma samples in a cohort of 42 CMT1A patients and 15 healthy controls (CRL) using ultrahigh liquid chromatography coupled to mass spectrometry and (ii) reverse phase protein microarrays to quantitate the expression of some proteins of energy metabolism and of the antioxidant response in skin biopsies of a cohort of 70 CMT1A patients and 13 healthy controls. Results The metabolomic approach identified 194 metabolites with significant differences among the four groups (Mi, Mo, Se, CRL) of samples. A multivariate Linear Discriminant Analysis model using 12 metabolites afforded the correct classification of the samples. These metabolites indicate an increase in protein catabolism and the mobilization of membrane lipids involved in signaling inflammation with severity of CMT1 A. A concurrent depletion of leucine, which is required for the biogenesis of the muscle, is also observed in the patients. Protein expression in skin biopsies indicates early loss of mitochondrial and antioxidant proteins in patients' biopsies. Conclusion The findings indicate that CMT1 A disease is associated with a metabolic state resembling inflammation and sarcopenia suggesting that it might represent a potential target to prevent the nerve and muscle wasting phenotype in these patients. The observed changes in metabolites could be useful as potential biomarkers of CMT1 A disease after appropriate validation in future longitudinal studies.
Datos de la publicación
- ISSN/ISSNe:
- 1932-6203, 1932-6203
- Tipo:
- Article
- Páginas:
- -
- PubMed:
- 28575008
- Factor de Impacto:
- 1,164 SCImago ℠
Plos One PUBLIC LIBRARY SCIENCE
Citas Recibidas en Web of Science: 13
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- No hay documentos
Filiaciones
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