Elevated serum levels of IFN-γ, IL-4 and TNF-α/unelevated serum levels of IL-10 in patients with demyelinating diseases during the acute stage
- 1 July 1998
- journal article
- research article
- Published by Elsevier BV in Journal of Neuroimmunology
- Vol. 87 (1-2), 27-32
- https://doi.org/10.1016/s0165-5728(98)00053-8
Abstract
We investigated IFN-γ, IL-4, IL-10 and TNF-α in the sera of 42 patients with demyelinating diseases: multiple sclerosis (MS) (21), Guillain–Barré syndrome (GBS) (14), Miller–Fisher syndrome (MFS) (7) during the acute or active stage and 12 normal controls using an originally devised sensitive sandwich enzyme-linked immunosorbent assay (ELISA). We found elevated serum levels of IFN-γ derived from T helper 1 (Th1) cells and of IL-4 derived from Th2 cells in MS, GBS and MFS. It has been reported in several studies that IL-4 production is increased in MS; however, there have been no reports of elevated serum IL-4 levels in MS. We here describe elevated serum levels of IL-4 in MS, GBS and MFS for the first time. Serum TNF-α levels were significantly elevated in patients with MS (pα levels also tended to be elevated in patients with GBS and MFS, but not significantly elevated compared with those of controls. Serum IL-10 levels were not elevated significantly in these diseases, although several patients had higher levels of serum IL-10 than controls. These findings suggest that simultaneous activation of both Th1 and Th2 cells may occur during the acute stage, indicating systemic involvement of the immune system in patients with MS, GBS and MFS. Levels of serum IFN-γ were two- to three-fold higher than those of serum IL-4 in all three demyelinating diseases. We may then conclude that Th1 response may be dominant in GBS and MFS during the acute stage.Keywords
Funding Information
- Kementerian Pendidikan dan Kebudayaan
- Naito Foundation
- Ministry of Health, Labour and Welfare
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