The B-cells that express anti-MAG antibodies in neuropathy and non-malignant IgM monoclonal gammopathy belong to the CD5 subpopulation. Academic Article uri icon

Overview

abstract

  • B-cells that express monoclonal IgM anti-MAG antibodies (M-protein) in a patient with neuropathy and non-malignant IgM monoclonal gammopathy were studied by flow cytometry to determine if they bear the CD5 cell surface antigen. The CD5+ antigen is expressed on a subpopulation of B-cells which has been implicated in the secretion of autoantibodies and development of B-cell chronic lymphocytic leukemia (B-CLL). The monoclonal anti-MAG antibodies secreting B-cells were identified by a mouse monoclonal antibody to M-protein idiotype. Cytofluorometric analysis revealed that approximately 62% of the idiotype-positive B-lymphocytes expressed the CD5 antigen. The result of this study indicate that monoclonal anti-MAG antibodies may be secreted by CD5+ B-cells, and that B-cells in some cases of non-malignant IgM monoclonal gammopathy may be phenotypically similar to B-CLL cells.

publication date

  • January 1, 1991

Research

keywords

  • Antibodies
  • Antigens, Differentiation
  • B-Lymphocytes
  • Brain Diseases
  • Monoclonal Gammopathy of Undetermined Significance
  • Myelin Proteins

Identity

Scopus Document Identifier

  • 0026099685

Digital Object Identifier (DOI)

  • 10.1016/0165-5728(91)90090-t

PubMed ID

  • 1701449

Additional Document Info

volume

  • 31

issue

  • 1