Antigen specificity of clonally expanded and receptor edited cerebrospinal fluid B cells from patients with relapsing remitting MS

Doris L Washington, Kevin C. O'Connor, Elizabeth M. Cameron, Andrea Jowdry, E. Sally Ward, Elliot Frohman, Michael K. Racke, Nancy L Monson

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

We re-engineered the immunoglobulin rearrangements from clonally expanded CSF B cells of three Multiple Sclerosis patients as Fab fragments, and used three methods to test for their antigen (Ag) specificity. Nine out of ten Fab fragments were reactive to Myelin Basic Protein (MBP). The one Fab that did not react to MBP was a product of receptor editing. Two of the nine MBP reactive Fabs were also reactive to GFAP and CNPase, indicating that these clones were polyreactive. Targeting the mechanisms that allow these self-reactive B cells to reside in the CSF of MS patients may prove to be a potent immunotherapeutic strategy.

Original languageEnglish (US)
Pages (from-to)164-176
Number of pages13
JournalJournal of Neuroimmunology
Volume186
Issue number1-2
DOIs
StatePublished - May 2007

Keywords

  • Antibodies
  • Antigen specificity
  • B lymphocytes
  • Gene rearrangement
  • Multiple sclerosis

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Neurology
  • Clinical Neurology

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