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Blood-based untargeted metabolomics in relapsing-remitting multiple sclerosis revealed the testable therapeutic target
Journal article   Open access   Peer reviewed

Blood-based untargeted metabolomics in relapsing-remitting multiple sclerosis revealed the testable therapeutic target

Insha Zahoor, Hamid Suhail, Indrani Datta, Mohammad Ejaz Ahmed, Laila M Poisson, Jeffrey Waters, Faraz Rashid, Rui Bin, Jaspreet Singh, Mirela Cerghet, …
Proceedings of the National Academy of Sciences - PNAS, Vol.119(25), pp.e2123265119-e2123265119
06/21/2022
DOI: 10.1073/pnas.2123265119
PMCID: PMC9231486
PMID: 35700359
url
https://doi.org/10.1073/pnas.2123265119View
Published (Version of record) Open Access

Abstract

Metabolic aberrations impact the pathogenesis of multiple sclerosis (MS) and possibly can provide clues for new treatment strategies. Using untargeted metabolomics, we measured serum metabolites from 35 patients with relapsing-remitting multiple sclerosis (RRMS) and 14 healthy age-matched controls. Of 632 known metabolites detected, 60 were significantly altered in RRMS. Bioinformatics analysis identified an altered metabotype in patients with RRMS, represented by four changed metabolic pathways of glycerophospholipid, citrate cycle, sphingolipid, and pyruvate metabolism. Interestingly, the common upstream metabolic pathway feeding these four pathways is the glycolysis pathway. Real-time bioenergetic analysis of the patient-derived peripheral blood mononuclear cells showed enhanced glycolysis, supporting the altered metabolic state of immune cells. Experimental autoimmune encephalomyelitis mice treated with the glycolytic inhibitor 2-deoxy-D-glucose ameliorated the disease progression and inhibited the disease pathology significantly by promoting the antiinflammatory phenotype of monocytes/macrophage in the central nervous system. Our study provided a proof of principle for how a blood-based metabolomic approach using patient samples could lead to the identification of a therapeutic target for developing potential therapy.
Multiple Sclerosis Animals Encephalomyelitis, Autoimmune, Experimental - metabolism Humans Leukocytes, Mononuclear - metabolism Metabolomics Mice Multiple Sclerosis, Relapsing-Remitting

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