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Studies on activation variables in multiple sclerosis.

S Fredrikson1

  • 1Department of Neurology, Huddinge University Hospital, Karolinska Institutet, Stockholm, Sweden.

Acta Neurologica Scandinavica. Supplementum
|January 1, 1988
PubMed
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Immune markers like neopterin in cerebrospinal fluid (CSF) indicate multiple sclerosis (MS) disease activity during exacerbations. Bone marrow cells from MS patients show increased proliferation, suggesting immune system involvement in MS pathogenesis.

Area of Science:

  • Neuroimmunology
  • Immunology
  • Pathogenesis of Multiple Sclerosis

Background:

  • Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS).
  • Identifying reliable immune markers for MS disease activity and pathogenesis is crucial for understanding and managing the condition.

Purpose of the Study:

  • To evaluate selected immune variables as potential markers for disease activation, progression, and etiopathogenesis in multiple sclerosis (MS).

Main Methods:

  • Analysis of neopterin levels in cerebrospinal fluid (CSF) and serum.
  • Flow cytometry for HLA class II antigen (DR) expression on T lymphocytes (CD4+, CD8+) in CSF.
  • Phenotypic characterization of mononuclear cells (CD5+, CD4+, CD8+) in CSF and peripheral blood.
  • Assessment of cell proliferation in bone marrow and peripheral blood mononuclear cells.

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Main Results:

  • Neopterin levels were elevated in MS CSF during exacerbations but not in serum.
  • HLA-DR expression on CSF T cells was infrequent in MS patients but common in acute aseptic meningoencephalitis (AM).
  • Increased CD5+ cells in MS CSF, with a distinct CD5+, CD8-, CD4- population suggested.
  • MS bone marrow cells exhibited higher spontaneous and PHA-stimulated proliferation compared to controls.

Conclusions:

  • Neopterin may serve as a CSF marker for MS exacerbations.
  • Selective cell trafficking into the CNS compartment is indicated by differences in cell populations between CSF and peripheral blood.
  • Enhanced bone marrow cell proliferation in MS patients suggests potential involvement in disease pathogenesis.