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Related Experiment Videos

Human myelin basic protein (MBP) epitopes recognized by mouse MBP-selected T cell lines from multiple sclerosis

Y K Chou1, R E Jones, D Bourdette

  • 1Department of Neuroimmunology Research, Department of Veterans Affairs Medical Center, Portland, OR 97201.

Journal of Neuroimmunology
|January 1, 1994
PubMed
Summary

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Multiple sclerosis (MS) patient T cells recognize mouse myelin basic protein (MBP). This finding is crucial for understanding MS pathogenesis and developing mouse models for humanized severe combined immunodeficiency (SCID) chimeras.

Area of Science:

  • Neuroimmunology
  • Immunology
  • Molecular Biology

Background:

  • Multiple sclerosis (MS) is an autoimmune disease targeting the central nervous system.
  • Understanding T cell responses to myelin antigens is key to MS pathogenesis.
  • Experimental autoimmune encephalomyelitis (EAE) is a common mouse model for MS.

Purpose of the Study:

  • To determine if T cells from MS patients can recognize mouse myelin basic protein (MBP).
  • To assess the feasibility of using mouse MBP in severe combined immunodeficiency (SCID) mouse-human chimeras for MS research.

Main Methods:

  • Peripheral blood mononuclear cells (PBMCs) from 11 MS patients were analyzed for in vitro proliferation.
  • T cell lines were generated and selected using mouse MBP.
  • Proliferation assays were performed using mouse MBP, human MBP, and synthetic MBP peptides.

Related Experiment Videos

  • MHC restriction was analyzed for one T cell line.

    • Main Results:

    • 55% of MS patients showed in vitro proliferation in response to mouse MBP.
    • Four out of five T cell lines generated from MS patients recognized mouse MBP.
    • All five T cell lines responded to at least one synthetic peptide of human MBP.
    • One T cell line demonstrated MHC class II restricted proliferation.

    Conclusions:

    • T cells from MS patients can recognize epitopes on mouse MBP.
    • These findings suggest cross-reactivity between human and mouse MBP epitopes.
    • This recognition is a critical factor for developing SCID mouse-human chimeras for MS research.