Abstract (Expand)
Multiple sclerosis (MS) is an inflammatory neurological disease of the central nervous system with a subclinical phase preceding frank neuroinflammation. CD8<sup>+</sup> T cells are abundant … within MS lesions, but their potential role in disease pathology remains unclear. Using high-throughput single-cell RNA sequencing and single-cell T cell receptor analysis, we compared CD8<sup>+</sup> T cell clones from the blood and cerebrospinal fluid (CSF) of monozygotic twin pairs in which the cotwin had either no or subclinical neuroinflammation (SCNI). We identified peripheral MS-associated immunological and metabolic alterations indicative of an enhanced migratory, proinflammatory, and activated CD8<sup>+</sup> T cell phenotype, which was also evident in cotwins with SCNI and in an independent validation cohort of people with MS. Together, our in-depth single-cell analysis indicates a disease-driving proinflammatory role of infiltrating CD8<sup>+</sup> T cells and identifies potential immunological and metabolic therapeutic targets in both prodromal and definitive stages of the disease.
Authors: Vladyslav Kavaka, Luisa Mutschler, Clara de la Rosa Del Val, Klara Eglseer, Ana M Gómez Martínez, Andrea Flierl-Hecht, Birgit Ertl-Wagner, Daniel Keeser, Martin Mortazavi, Klaus Seelos, Hanna Zimmermann, Jürgen Haas, Brigitte Wildemann, Tania Kümpfel, Klaus Dornmair, Thomas Korn, Reinhard Hohlfeld, Martin Kerschensteiner, Lisa Ann Gerdes, Eduardo Beltrán
Date Published: 27th Sep 2024
Publication Type: Journal