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Immunomodulating therapy of rheumatoid arthritis by high-dose intravenous immunoglobulin
H Becker1, G Mitropoulou, K Helmke
1Medizinische Klinik III und Poliklinik, Justus-Liebig-Universität, Giessen.
11 patients with rheumatoid arthritis were treated with intravenous immunoglobulin (IVGG). In 6 patients clinical results were impressive, although lasting responses could be achieved in 3 patients only. This treatment was immunomodulating, since the immunoregulatory T-cell ratio (CD4/CD8) decreased following therapy by reducing CD4-positive cells in-vivo. By use of anti-mu-antibodies as a B-cell specific mitogen, IVGG-treatment was seen to suppress early processes of B cell activation. In parallel to these cellular effects, IVGG led to a reduction in the levels of polyethyleneglycol-precipitated circulating immune complexes as measured by lasernephelometry.
11 patients with rheumatoid arthritis were treated with intravenous immunoglobulin (IVGG). In 6 patients clinical results were impressive, although lasting responses could be achieved in 3 patients only. This treatment was immunomodulating, since the immunoregulatory T-cell ratio (CD4/CD8) decreased following therapy by reducing CD4-positive cells in-vivo. By use of anti-mu-antibodies as a B-cell specific mitogen, IVGG-treatment was seen to suppress early processes of B cell activation. In parallel to these cellular effects, IVGG led to a reduction in the levels of polyethyleneglycol-precipitated circulating immune complexes as measured by lasernephelometry.