BACKGROUND: Metabolic reprogramming is shaped to support specific cell functions since cellular metabolism controls the final outcome of immune response. Multiple sclerosis (MS) is an autoimmune disease resulting from loss of immune tolerance against central nervous system (CNS) myelin. Metabolic alterations of T cells occurring during MS are not yet well understood and their studies could have relevance in the comprehension of the pathogenetic events leading to loss of immune tolerance to self and to develop novel therapeutic strategies aimed at limiting MS progression. METHODS AND RESULTS: In this report, we observed that extracellular acidification rate (ECAR) and oxygen consumption rate (OCR), indicators of glycolysis and oxidative phosphorylation, respectively, were impaired during T cell activation in naïve-to-treatment relapsing remitting (RR)MS patients when compared with healthy controls. These results were also corroborated at biochemical level by a reduced expression of the glycolitic enzymes aldolase, enolase 1, hexokinase I, and by reduction of Krebs cycle enzymes dihydrolipoamide-S-acetyl transferase (DLAT) and dihydrolipoamide-S-succinyl transferase (DLST). Treatment of RRMS patients with interferon beta-1a (IFN beta-1a) was able to restore T cell glycolysis and mitochondrial respiration as well as the amount of the metabolic enzymes to a level comparable to that of healthy controls. These changes associated with an up-regulation of the glucose transporter-1 (GLUT-1), a key element in intracellular transport of glucose. CONCLUSIONS: Our data suggest that T cells from RRMS patients display a reduced engagement of glycolysis and mitochondrial respiration, reversible upon IFN beta-1a treatment, thus suggesting an involvement of an altered metabolism in the pathogenesis of MS.
La Rocca, C., Carbone, F., De Rosa, V., Colamatteo, A., Galgani, M., Perna, F., et al. (2017). Immunometabolic profiling of T cells from patients with relapsing-remitting multiple sclerosis reveals an impairment in glycolysis and mitochondrial respiration. METABOLISM, CLINICAL AND EXPERIMENTAL, 77, 39-46.
|Tipologia:||Articolo su rivista|
|Citazione:||La Rocca, C., Carbone, F., De Rosa, V., Colamatteo, A., Galgani, M., Perna, F., et al. (2017). Immunometabolic profiling of T cells from patients with relapsing-remitting multiple sclerosis reveals an impairment in glycolysis and mitochondrial respiration. METABOLISM, CLINICAL AND EXPERIMENTAL, 77, 39-46.|
|IF:||Con Impact Factor ISI|
|Settore Scientifico Disciplinare:||Settore MED/26 - Neurologia|
|Revisione (peer review):||Esperti anonimi|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.metabol.2017.08.011|
|Stato di pubblicazione:||Pubblicato|
|Data di pubblicazione:||dic-2017|
|Titolo:||Immunometabolic profiling of T cells from patients with relapsing-remitting multiple sclerosis reveals an impairment in glycolysis and mitochondrial respiration|
|Autori:||La Rocca, C; Carbone, F; De Rosa, V; Colamatteo, A; Galgani, M; Perna, F; Lanzillo, R; Brescia Morra, V; Orefice, G; Cerillo, I; Florio, C; Maniscalco, GT; Salvetti, M; Centonze, D; Uccelli, A; Longobardi, S; Visconti, A; Matarese, G|
|Appare nelle tipologie:||01 - Articolo su rivista|