RANTES correlates with inflammatory activity and synaptic excitability in multiple sclerosis

Francesco Mori, Robert Nisticò, Carolina G. Nicoletti, Sara Zagaglia, Georgia Mandolesi, Sonia Piccinin, Gianvito Martino, Annamaria Finardi, Paolo M. Rossini, Girolama A. Marfia, Roberto Furlan, Diego Centonze

Research output: Contribution to journalArticle

Abstract

Background: Alterations of synaptic transmission induced by inflammatory activity have been linked to the pathogenic mechanisms of multiple sclerosis (MS). Regulated upon activation, normal T-cell expressed, and secreted (RANTES) is a pro-inflammatory chemokine involved in MS pathophysiology, potentially able to regulate glutamate release and plasticity in MS brains, with relevant consequences on the clinical manifestations of the disease. Objective: To assess the role of RANTES in the regulation of cortical excitability. Methods: We explored the association of RANTES levels in the cerebrospinal fluid (CSF) of newly diagnosed MS patients with magnetic resonance imaging (MRI) and laboratory measures of inflammatory activity, as well its role in the control of cortical excitability and plasticity explored by means of transcranial magnetic stimulation (TMS), and in hippocampal mouse slices in vitro. Results: CSF levels of RANTES were remarkably high only in active MS patients and were correlated with the concentrations of interleukin-1β. RANTES levels were associated with TMS measures of cortical synaptic excitability, but not with long-term potentiation (LTP)-like plasticity. Similar findings were obtained in mouse hippocampal slices in vitro, where we observed that RANTES enhanced basal excitatory synaptic transmission with no effect on LTP. Conclusion: RANTES correlates with inflammation and synaptic excitability in MS brains.

Original languageEnglish
Pages (from-to)1405-1412
Number of pages8
JournalMultiple Sclerosis
Volume22
Issue number11
DOIs
Publication statusPublished - Oct 1 2016

Keywords

  • Chemokines
  • CSF
  • glutamate
  • LTP
  • synaptic plasticity
  • TMS

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

Fingerprint Dive into the research topics of 'RANTES correlates with inflammatory activity and synaptic excitability in multiple sclerosis'. Together they form a unique fingerprint.

  • Cite this